diff options
717 files changed, 13256 insertions, 8200 deletions
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 4cf603519b1..540e1eb157e 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -289,8 +289,9 @@ jobs: os: ubuntu-20.04-4core-16gb env: {} - name: x86_64-gnu-integration + env: + CI_ONLY_WHEN_CHANNEL: nightly os: ubuntu-20.04-16core-64gb - env: {} - name: x86_64-gnu-debug os: ubuntu-20.04-8core-32gb env: {} diff --git a/Cargo.lock b/Cargo.lock index dbe5b2ec6b7..5d78e29de0e 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -4340,6 +4340,7 @@ dependencies = [ name = "rustc_pattern_analysis" version = "0.0.0" dependencies = [ + "derivative", "rustc_apfloat", "rustc_arena", "rustc_data_structures", @@ -4354,6 +4355,7 @@ dependencies = [ "rustc_target", "smallvec", "tracing", + "typed-arena", ] [[package]] @@ -5690,6 +5692,12 @@ dependencies = [ ] [[package]] +name = "typed-arena" +version = "2.0.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6af6ae20167a9ece4bcb41af5b80f8a1f1df981f6391189ce00fd257af04126a" + +[[package]] name = "typenum" version = "1.16.0" source = "registry+https://github.com/rust-lang/crates.io-index" diff --git a/RELEASES.md b/RELEASES.md index 9eb8755dad9..3fb74b52292 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,3 +1,135 @@ +Version 1.75.0 (2023-12-28) +========================== + +<a id="1.75.0-Language"></a> + +Language +-------- + +- [Stabilize `async fn` and return-position `impl Trait` in traits.](https://github.com/rust-lang/rust/pull/115822/) +- [Allow function pointer signatures containing `&mut T` in `const` contexts.](https://github.com/rust-lang/rust/pull/116015/) +- [Match `usize`/`isize` exhaustively with half-open ranges.](https://github.com/rust-lang/rust/pull/116692/) +- [Guarantee that `char` has the same size and alignment as `u32`.](https://github.com/rust-lang/rust/pull/116894/) +- [Document that the null pointer has the 0 address.](https://github.com/rust-lang/rust/pull/116988/) +- [Allow partially moved values in `match`.](https://github.com/rust-lang/rust/pull/103208/) +- [Add notes about non-compliant FP behavior on 32bit x86 targets.](https://github.com/rust-lang/rust/pull/113053/) +- [Stabilize ratified RISC-V target features.](https://github.com/rust-lang/rust/pull/116485/) + +<a id="1.75.0-Compiler"></a> + +Compiler +-------- + +- [Rework negative coherence to properly consider impls that only partly overlap.](https://github.com/rust-lang/rust/pull/112875/) +- [Bump `COINDUCTIVE_OVERLAP_IN_COHERENCE` to deny, and warn in dependencies.](https://github.com/rust-lang/rust/pull/116493/) +- [Consider alias bounds when computing liveness in NLL.](https://github.com/rust-lang/rust/pull/116733/) +- [Add the V (vector) extension to the `riscv64-linux-android` target spec.](https://github.com/rust-lang/rust/pull/116618/) +- [Automatically enable cross-crate inlining for small functions](https://github.com/rust-lang/rust/pull/116505) +- Add several new tier 3 targets: + - [`csky-unknown-linux-gnuabiv2hf`](https://github.com/rust-lang/rust/pull/117049/) + - [`i586-unknown-netbsd`](https://github.com/rust-lang/rust/pull/117170/) + - [`mipsel-unknown-netbsd`](https://github.com/rust-lang/rust/pull/117356/) + +Refer to Rust's [platform support page][platform-support-doc] +for more information on Rust's tiered platform support. + +<a id="1.75.0-Libraries"></a> + +Libraries +--------- + +- [Override `Waker::clone_from` to avoid cloning `Waker`s unnecessarily.](https://github.com/rust-lang/rust/pull/96979/) +- [Implement `BufRead` for `VecDeque<u8>`.](https://github.com/rust-lang/rust/pull/110604/) +- [Implement `FusedIterator` for `DecodeUtf16` when the inner iterator does.](https://github.com/rust-lang/rust/pull/110729/) +- [Implement `Not, Bit{And,Or}{,Assign}` for IP addresses.](https://github.com/rust-lang/rust/pull/113747/) +- [Implement `Default` for `ExitCode`.](https://github.com/rust-lang/rust/pull/114589/) +- [Guarantee representation of None in NPO](https://github.com/rust-lang/rust/pull/115333/) +- [Document when atomic loads are guaranteed read-only.](https://github.com/rust-lang/rust/pull/115577/) +- [Broaden the consequences of recursive TLS initialization.](https://github.com/rust-lang/rust/pull/116172/) +- [Windows: Support sub-millisecond sleep.](https://github.com/rust-lang/rust/pull/116461/) +- [Fix generic bound of `str::SplitInclusive`'s `DoubleEndedIterator` impl](https://github.com/rust-lang/rust/pull/100806/) +- [Fix exit status / wait status on non-Unix `cfg(unix)` platforms.](https://github.com/rust-lang/rust/pull/115108/) + +<a id="1.75.0-Stabilized-APIs"></a> + +Stabilized APIs +--------------- + +- [`Atomic*::from_ptr`](https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicUsize.html#method.from_ptr) +- [`FileTimes`](https://doc.rust-lang.org/stable/std/fs/struct.FileTimes.html) +- [`FileTimesExt`](https://doc.rust-lang.org/stable/std/os/windows/fs/trait.FileTimesExt.html) +- [`File::set_modified`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.set_modified) +- [`File::set_times`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.set_times) +- [`IpAddr::to_canonical`](https://doc.rust-lang.org/stable/core/net/enum.IpAddr.html#method.to_canonical) +- [`Ipv6Addr::to_canonical`](https://doc.rust-lang.org/stable/core/net/struct.Ipv6Addr.html#method.to_canonical) +- [`Option::as_slice`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.as_slice) +- [`Option::as_mut_slice`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.as_mut_slice) +- [`pointer::byte_add`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.byte_add) +- [`pointer::byte_offset`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.byte_offset) +- [`pointer::byte_offset_from`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.byte_offset_from) +- [`pointer::byte_sub`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.byte_sub) +- [`pointer::wrapping_byte_add`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.wrapping_byte_add) +- [`pointer::wrapping_byte_offset`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.wrapping_byte_offset) +- [`pointer::wrapping_byte_sub`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.wrapping_byte_sub) + +These APIs are now stable in const contexts: + +- [`Ipv6Addr::to_ipv4_mapped`](https://doc.rust-lang.org/stable/core/net/struct.Ipv6Addr.html#method.to_ipv4_mapped) +- [`MaybeUninit::assume_init_read`](https://doc.rust-lang.org/stable/core/mem/union.MaybeUninit.html#method.assume_init_read) +- [`MaybeUninit::zeroed`](https://doc.rust-lang.org/stable/core/mem/union.MaybeUninit.html#method.zeroed) +- [`mem::discriminant`](https://doc.rust-lang.org/stable/core/mem/fn.discriminant.html) +- [`mem::zeroed`](https://doc.rust-lang.org/stable/core/mem/fn.zeroed.html) + +<a id="1.75.0-Cargo"></a> + +Cargo +----- + +- [Add new packages to `[workspace.members]` automatically.](https://github.com/rust-lang/cargo/pull/12779/) +- [Allow version-less `Cargo.toml` manifests.](https://github.com/rust-lang/cargo/pull/12786/) +- [Make browser links out of HTML file paths.](https://github.com/rust-lang/cargo/pull/12889) + +<a id="1.75.0-Rustdoc"></a> + +Rustdoc +------- + +- [Accept less invalid Rust in rustdoc.](https://github.com/rust-lang/rust/pull/117450/) +- [Document lack of object safety on affected traits.](https://github.com/rust-lang/rust/pull/113241/) +- [Hide `#[repr(transparent)]` if it isn't part of the public ABI.](https://github.com/rust-lang/rust/pull/115439/) +- [Show enum discriminant if it is a C-like variant.](https://github.com/rust-lang/rust/pull/116142/) + +<a id="1.75.0-Compatibility-Notes"></a> + +Compatibility Notes +------------------- + +- [FreeBSD targets now require at least version 12.](https://github.com/rust-lang/rust/pull/114521/) +- [Formally demote tier 2 MIPS targets to tier 3.](https://github.com/rust-lang/rust/pull/115238/) +- [Make misalignment a hard error in `const` contexts.](https://github.com/rust-lang/rust/pull/115524/) +- [Fix detecting references to packed unsized fields.](https://github.com/rust-lang/rust/pull/115583/) +- [Remove support for compiler plugins.](https://github.com/rust-lang/rust/pull/116412/) + +<a id="1.75.0-Internal-Changes"></a> + +Internal Changes +---------------- + +These changes do not affect any public interfaces of Rust, but they represent +significant improvements to the performance or internals of rustc and related +tools. + +- [Optimize `librustc_driver.so` with BOLT.](https://github.com/rust-lang/rust/pull/116352/) +- [Enable parallel rustc front end in dev and nightly builds.](https://github.com/rust-lang/rust/pull/117435/) +- [Distribute `rustc-codegen-cranelift` as rustup component on the nightly channel.](https://github.com/rust-lang/rust/pull/81746/) + +Version 1.74.1 (2023-12-07) +=========================== + +- [Resolved spurious STATUS_ACCESS_VIOLATIONs in LLVM](https://github.com/rust-lang/rust/pull/118464) +- [Clarify guarantees for std::mem::discriminant](https://github.com/rust-lang/rust/pull/118006) +- [Fix some subtyping-related regressions](https://github.com/rust-lang/rust/pull/116415) + Version 1.74.0 (2023-11-16) ========================== diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs index 5252472261f..ec3ab828b71 100644 --- a/compiler/rustc_abi/src/layout.rs +++ b/compiler/rustc_abi/src/layout.rs @@ -11,6 +11,24 @@ use crate::{ Variants, WrappingRange, }; +// A variant is absent if it's uninhabited and only has ZST fields. +// Present uninhabited variants only require space for their fields, +// but *not* an encoding of the discriminant (e.g., a tag value). +// See issue #49298 for more details on the need to leave space +// for non-ZST uninhabited data (mostly partial initialization). +fn absent<'a, FieldIdx, VariantIdx, F>(fields: &IndexSlice<FieldIdx, F>) -> bool +where + FieldIdx: Idx, + VariantIdx: Idx, + F: Deref<Target = &'a LayoutS<FieldIdx, VariantIdx>> + fmt::Debug, +{ + let uninhabited = fields.iter().any(|f| f.abi.is_uninhabited()); + // We cannot ignore alignment; that might lead us to entirely discard a variant and + // produce an enum that is less aligned than it should be! + let is_1zst = fields.iter().all(|f| f.is_1zst()); + uninhabited && is_1zst +} + pub trait LayoutCalculator { type TargetDataLayoutRef: Borrow<TargetDataLayout>; @@ -162,24 +180,6 @@ pub trait LayoutCalculator { let dl = self.current_data_layout(); let dl = dl.borrow(); - let scalar_unit = |value: Primitive| { - let size = value.size(dl); - assert!(size.bits() <= 128); - Scalar::Initialized { value, valid_range: WrappingRange::full(size) } - }; - - // A variant is absent if it's uninhabited and only has ZST fields. - // Present uninhabited variants only require space for their fields, - // but *not* an encoding of the discriminant (e.g., a tag value). - // See issue #49298 for more details on the need to leave space - // for non-ZST uninhabited data (mostly partial initialization). - let absent = |fields: &IndexSlice<FieldIdx, F>| { - let uninhabited = fields.iter().any(|f| f.abi.is_uninhabited()); - // We cannot ignore alignment; that might lead us to entirely discard a variant and - // produce an enum that is less aligned than it should be! - let is_1zst = fields.iter().all(|f| f.is_1zst()); - uninhabited && is_1zst - }; let (present_first, present_second) = { let mut present_variants = variants .iter_enumerated() @@ -197,574 +197,37 @@ pub trait LayoutCalculator { None => VariantIdx::new(0), }; - let is_struct = !is_enum || - // Only one variant is present. - (present_second.is_none() && - // Representation optimizations are allowed. - !repr.inhibit_enum_layout_opt()); - if is_struct { - // Struct, or univariant enum equivalent to a struct. - // (Typechecking will reject discriminant-sizing attrs.) - - let v = present_first; - let kind = if is_enum || variants[v].is_empty() || always_sized { - StructKind::AlwaysSized - } else { - StructKind::MaybeUnsized - }; - - let mut st = self.univariant(dl, &variants[v], repr, kind)?; - st.variants = Variants::Single { index: v }; - - if is_unsafe_cell { - let hide_niches = |scalar: &mut _| match scalar { - Scalar::Initialized { value, valid_range } => { - *valid_range = WrappingRange::full(value.size(dl)) - } - // Already doesn't have any niches - Scalar::Union { .. } => {} - }; - match &mut st.abi { - Abi::Uninhabited => {} - Abi::Scalar(scalar) => hide_niches(scalar), - Abi::ScalarPair(a, b) => { - hide_niches(a); - hide_niches(b); - } - Abi::Vector { element, count: _ } => hide_niches(element), - Abi::Aggregate { sized: _ } => {} - } - st.largest_niche = None; - return Some(st); - } - - let (start, end) = scalar_valid_range; - match st.abi { - Abi::Scalar(ref mut scalar) | Abi::ScalarPair(ref mut scalar, _) => { - // Enlarging validity ranges would result in missed - // optimizations, *not* wrongly assuming the inner - // value is valid. e.g. unions already enlarge validity ranges, - // because the values may be uninitialized. - // - // Because of that we only check that the start and end - // of the range is representable with this scalar type. - - let max_value = scalar.size(dl).unsigned_int_max(); - if let Bound::Included(start) = start { - // FIXME(eddyb) this might be incorrect - it doesn't - // account for wrap-around (end < start) ranges. - assert!(start <= max_value, "{start} > {max_value}"); - scalar.valid_range_mut().start = start; - } - if let Bound::Included(end) = end { - // FIXME(eddyb) this might be incorrect - it doesn't - // account for wrap-around (end < start) ranges. - assert!(end <= max_value, "{end} > {max_value}"); - scalar.valid_range_mut().end = end; - } - - // Update `largest_niche` if we have introduced a larger niche. - let niche = Niche::from_scalar(dl, Size::ZERO, *scalar); - if let Some(niche) = niche { - match st.largest_niche { - Some(largest_niche) => { - // Replace the existing niche even if they're equal, - // because this one is at a lower offset. - if largest_niche.available(dl) <= niche.available(dl) { - st.largest_niche = Some(niche); - } - } - None => st.largest_niche = Some(niche), - } - } - } - _ => assert!( - start == Bound::Unbounded && end == Bound::Unbounded, - "nonscalar layout for layout_scalar_valid_range type: {st:#?}", - ), - } - - return Some(st); - } - - // At this point, we have handled all unions and - // structs. (We have also handled univariant enums - // that allow representation optimization.) - assert!(is_enum); - - // Until we've decided whether to use the tagged or - // niche filling LayoutS, we don't want to intern the - // variant layouts, so we can't store them in the - // overall LayoutS. Store the overall LayoutS - // and the variant LayoutSs here until then. - struct TmpLayout<FieldIdx: Idx, VariantIdx: Idx> { - layout: LayoutS<FieldIdx, VariantIdx>, - variants: IndexVec<VariantIdx, LayoutS<FieldIdx, VariantIdx>>, - } - - let calculate_niche_filling_layout = || -> Option<TmpLayout<FieldIdx, VariantIdx>> { - if dont_niche_optimize_enum { - return None; - } - - if variants.len() < 2 { - return None; - } - - let mut align = dl.aggregate_align; - let mut max_repr_align = repr.align; - let mut unadjusted_abi_align = align.abi; - - let mut variant_layouts = variants - .iter_enumerated() - .map(|(j, v)| { - let mut st = self.univariant(dl, v, repr, StructKind::AlwaysSized)?; - st.variants = Variants::Single { index: j }; - - align = align.max(st.align); - max_repr_align = max_repr_align.max(st.max_repr_align); - unadjusted_abi_align = unadjusted_abi_align.max(st.unadjusted_abi_align); - - Some(st) - }) - .collect::<Option<IndexVec<VariantIdx, _>>>()?; - - let largest_variant_index = variant_layouts - .iter_enumerated() - .max_by_key(|(_i, layout)| layout.size.bytes()) - .map(|(i, _layout)| i)?; - - let all_indices = variants.indices(); - let needs_disc = - |index: VariantIdx| index != largest_variant_index && !absent(&variants[index]); - let niche_variants = all_indices.clone().find(|v| needs_disc(*v)).unwrap() - ..=all_indices.rev().find(|v| needs_disc(*v)).unwrap(); - - let count = - (niche_variants.end().index() as u128 - niche_variants.start().index() as u128) + 1; - - // Find the field with the largest niche - let (field_index, niche, (niche_start, niche_scalar)) = variants[largest_variant_index] - .iter() - .enumerate() - .filter_map(|(j, field)| Some((j, field.largest_niche?))) - .max_by_key(|(_, niche)| niche.available(dl)) - .and_then(|(j, niche)| Some((j, niche, niche.reserve(dl, count)?)))?; - let niche_offset = - niche.offset + variant_layouts[largest_variant_index].fields.offset(field_index); - let niche_size = niche.value.size(dl); - let size = variant_layouts[largest_variant_index].size.align_to(align.abi); - - let all_variants_fit = variant_layouts.iter_enumerated_mut().all(|(i, layout)| { - if i == largest_variant_index { - return true; - } - - layout.largest_niche = None; - - if layout.size <= niche_offset { - // This variant will fit before the niche. - return true; - } - - // Determine if it'll fit after the niche. - let this_align = layout.align.abi; - let this_offset = (niche_offset + niche_size).align_to(this_align); - - if this_offset + layout.size > size { - return false; - } - - // It'll fit, but we need to make some adjustments. - match layout.fields { - FieldsShape::Arbitrary { ref mut offsets, .. } => { - for offset in offsets.iter_mut() { - *offset += this_offset; - } - } - FieldsShape::Primitive | FieldsShape::Array { .. } | FieldsShape::Union(..) => { - panic!("Layout of fields should be Arbitrary for variants") - } - } - - // It can't be a Scalar or ScalarPair because the offset isn't 0. - if !layout.abi.is_uninhabited() { - layout.abi = Abi::Aggregate { sized: true }; - } - layout.size += this_offset; - - true - }); - - if !all_variants_fit { - return None; - } - - let largest_niche = Niche::from_scalar(dl, niche_offset, niche_scalar); - - let others_zst = variant_layouts - .iter_enumerated() - .all(|(i, layout)| i == largest_variant_index || layout.size == Size::ZERO); - let same_size = size == variant_layouts[largest_variant_index].size; - let same_align = align == variant_layouts[largest_variant_index].align; - - let abi = if variant_layouts.iter().all(|v| v.abi.is_uninhabited()) { - Abi::Uninhabited - } else if same_size && same_align && others_zst { - match variant_layouts[largest_variant_index].abi { - // When the total alignment and size match, we can use the - // same ABI as the scalar variant with the reserved niche. - Abi::Scalar(_) => Abi::Scalar(niche_scalar), - Abi::ScalarPair(first, second) => { - // Only the niche is guaranteed to be initialised, - // so use union layouts for the other primitive. - if niche_offset == Size::ZERO { - Abi::ScalarPair(niche_scalar, second.to_union()) - } else { - Abi::ScalarPair(first.to_union(), niche_scalar) - } - } - _ => Abi::Aggregate { sized: true }, - } - } else { - Abi::Aggregate { sized: true } - }; - - let layout = LayoutS { - variants: Variants::Multiple { - tag: niche_scalar, - tag_encoding: TagEncoding::Niche { - untagged_variant: largest_variant_index, - niche_variants, - niche_start, - }, - tag_field: 0, - variants: IndexVec::new(), - }, - fields: FieldsShape::Arbitrary { - offsets: [niche_offset].into(), - memory_index: [0].into(), - }, - abi, - largest_niche, - size, - align, - max_repr_align, - unadjusted_abi_align, - }; - - Some(TmpLayout { layout, variants: variant_layouts }) - }; - - let niche_filling_layout = calculate_niche_filling_layout(); - - let (mut min, mut max) = (i128::MAX, i128::MIN); - let discr_type = repr.discr_type(); - let bits = Integer::from_attr(dl, discr_type).size().bits(); - for (i, mut val) in discriminants { - if variants[i].iter().any(|f| f.abi.is_uninhabited()) { - continue; - } - if discr_type.is_signed() { - // sign extend the raw representation to be an i128 - val = (val << (128 - bits)) >> (128 - bits); - } - if val < min { - min = val; - } - if val > max { - max = val; - } - } - // We might have no inhabited variants, so pretend there's at least one. - if (min, max) == (i128::MAX, i128::MIN) { - min = 0; - max = 0; - } - assert!(min <= max, "discriminant range is {min}...{max}"); - let (min_ity, signed) = discr_range_of_repr(min, max); //Integer::repr_discr(tcx, ty, &repr, min, max); - - let mut align = dl.aggregate_align; - let mut max_repr_align = repr.align; - let mut unadjusted_abi_align = align.abi; - - let mut size = Size::ZERO; - - // We're interested in the smallest alignment, so start large. - let mut start_align = Align::from_bytes(256).unwrap(); - assert_eq!(Integer::for_align(dl, start_align), None); - - // repr(C) on an enum tells us to make a (tag, union) layout, - // so we need to grow the prefix alignment to be at least - // the alignment of the union. (This value is used both for - // determining the alignment of the overall enum, and the - // determining the alignment of the payload after the tag.) - let mut prefix_align = min_ity.align(dl).abi; - if repr.c() { - for fields in variants { - for field in fields { - prefix_align = prefix_align.max(field.align.abi); - } - } - } - - // Create the set of structs that represent each variant. - let mut layout_variants = variants - .iter_enumerated() - .map(|(i, field_layouts)| { - let mut st = self.univariant( - dl, - field_layouts, - repr, - StructKind::Prefixed(min_ity.size(), prefix_align), - )?; - st.variants = Variants::Single { index: i }; - // Find the first field we can't move later - // to make room for a larger discriminant. - for field_idx in st.fields.index_by_increasing_offset() { - let field = &field_layouts[FieldIdx::new(field_idx)]; - if !field.is_1zst() { - start_align = start_align.min(field.align.abi); - break; - } - } - size = cmp::max(size, st.size); - align = align.max(st.align); - max_repr_align = max_repr_align.max(st.max_repr_align); - unadjusted_abi_align = unadjusted_abi_align.max(st.unadjusted_abi_align); - Some(st) - }) - .collect::<Option<IndexVec<VariantIdx, _>>>()?; - - // Align the maximum variant size to the largest alignment. - size = size.align_to(align.abi); - - // FIXME(oli-obk): deduplicate and harden these checks - if size.bytes() >= dl.obj_size_bound() { - return None; - } - - let typeck_ity = Integer::from_attr(dl, repr.discr_type()); - if typeck_ity < min_ity { - // It is a bug if Layout decided on a greater discriminant size than typeck for - // some reason at this point (based on values discriminant can take on). Mostly - // because this discriminant will be loaded, and then stored into variable of - // type calculated by typeck. Consider such case (a bug): typeck decided on - // byte-sized discriminant, but layout thinks we need a 16-bit to store all - // discriminant values. That would be a bug, because then, in codegen, in order - // to store this 16-bit discriminant into 8-bit sized temporary some of the - // space necessary to represent would have to be discarded (or layout is wrong - // on thinking it needs 16 bits) - panic!( - "layout decided on a larger discriminant type ({min_ity:?}) than typeck ({typeck_ity:?})" - ); - // However, it is fine to make discr type however large (as an optimisation) - // after this point – we’ll just truncate the value we load in codegen. - } - - // Check to see if we should use a different type for the - // discriminant. We can safely use a type with the same size - // as the alignment of the first field of each variant. - // We increase the size of the discriminant to avoid LLVM copying - // padding when it doesn't need to. This normally causes unaligned - // load/stores and excessive memcpy/memset operations. By using a - // bigger integer size, LLVM can be sure about its contents and - // won't be so conservative. - - // Use the initial field alignment - let mut ity = if repr.c() || repr.int.is_some() { - min_ity - } else { - Integer::for_align(dl, start_align).unwrap_or(min_ity) - }; - - // If the alignment is not larger than the chosen discriminant size, - // don't use the alignment as the final size. - if ity <= min_ity { - ity = min_ity; - } else { - // Patch up the variants' first few fields. - let old_ity_size = min_ity.size(); - let new_ity_size = ity.size(); - for variant in &mut layout_variants { - match variant.fields { - FieldsShape::Arbitrary { ref mut offsets, .. } => { - for i in offsets { - if *i <= old_ity_size { - assert_eq!(*i, old_ity_size); - *i = new_ity_size; - } - } - // We might be making the struct larger. - if variant.size <= old_ity_size { - variant.size = new_ity_size; - } - } - FieldsShape::Primitive | FieldsShape::Array { .. } | FieldsShape::Union(..) => { - panic!("encountered a non-arbitrary layout during enum layout") - } - } - } - } - - let tag_mask = ity.size().unsigned_int_max(); - let tag = Scalar::Initialized { - value: Primitive::Int(ity, signed), - valid_range: WrappingRange { - start: (min as u128 & tag_mask), - end: (max as u128 & tag_mask), - }, - }; - let mut abi = Abi::Aggregate { sized: true }; - - if layout_variants.iter().all(|v| v.abi.is_uninhabited()) { - abi = Abi::Uninhabited; - } else if tag.size(dl) == size { - // Make sure we only use scalar layout when the enum is entirely its - // own tag (i.e. it has no padding nor any non-ZST variant fields). - abi = Abi::Scalar(tag); + // take the struct path if it is an actual struct + if !is_enum || + // or for optimizing univariant enums + (present_second.is_none() && !repr.inhibit_enum_layout_opt()) + { + layout_of_struct( + self, + repr, + variants, + is_enum, + is_unsafe_cell, + scalar_valid_range, + always_sized, + dl, + present_first, + ) } else { - // Try to use a ScalarPair for all tagged enums. - // That's possible only if we can find a common primitive type for all variants. - let mut common_prim = None; - let mut common_prim_initialized_in_all_variants = true; - for (field_layouts, layout_variant) in iter::zip(variants, &layout_variants) { - let FieldsShape::Arbitrary { ref offsets, .. } = layout_variant.fields else { - panic!("encountered a non-arbitrary layout during enum layout"); - }; - // We skip *all* ZST here and later check if we are good in terms of alignment. - // This lets us handle some cases involving aligned ZST. - let mut fields = iter::zip(field_layouts, offsets).filter(|p| !p.0.is_zst()); - let (field, offset) = match (fields.next(), fields.next()) { - (None, None) => { - common_prim_initialized_in_all_variants = false; - continue; - } - (Some(pair), None) => pair, - _ => { - common_prim = None; - break; - } - }; - let prim = match field.abi { - Abi::Scalar(scalar) => { - common_prim_initialized_in_all_variants &= - matches!(scalar, Scalar::Initialized { .. }); - scalar.primitive() - } - _ => { - common_prim = None; - break; - } - }; - if let Some(pair) = common_prim { - // This is pretty conservative. We could go fancier - // by conflating things like i32 and u32, or even - // realising that (u8, u8) could just cohabit with - // u16 or even u32. - if pair != (prim, offset) { - common_prim = None; - break; - } - } else { - common_prim = Some((prim, offset)); - } - } - if let Some((prim, offset)) = common_prim { - let prim_scalar = if common_prim_initialized_in_all_variants { - scalar_unit(prim) - } else { - // Common prim might be uninit. - Scalar::Union { value: prim } - }; - let pair = self.scalar_pair::<FieldIdx, VariantIdx>(tag, prim_scalar); - let pair_offsets = match pair.fields { - FieldsShape::Arbitrary { ref offsets, ref memory_index } => { - assert_eq!(memory_index.raw, [0, 1]); - offsets - } - _ => panic!("encountered a non-arbitrary layout during enum layout"), - }; - if pair_offsets[FieldIdx::new(0)] == Size::ZERO - && pair_offsets[FieldIdx::new(1)] == *offset - && align == pair.align - && size == pair.size - { - // We can use `ScalarPair` only when it matches our - // already computed layout (including `#[repr(C)]`). - abi = pair.abi; - } - } - } - - // If we pick a "clever" (by-value) ABI, we might have to adjust the ABI of the - // variants to ensure they are consistent. This is because a downcast is - // semantically a NOP, and thus should not affect layout. - if matches!(abi, Abi::Scalar(..) | Abi::ScalarPair(..)) { - for variant in &mut layout_variants { - // We only do this for variants with fields; the others are not accessed anyway. - // Also do not overwrite any already existing "clever" ABIs. - if variant.fields.count() > 0 && matches!(variant.abi, Abi::Aggregate { .. }) { - variant.abi = abi; - // Also need to bump up the size and alignment, so that the entire value fits - // in here. - variant.size = cmp::max(variant.size, size); - variant.align.abi = cmp::max(variant.align.abi, align.abi); - } - } + // At this point, we have handled all unions and + // structs. (We have also handled univariant enums + // that allow representation optimization.) + assert!(is_enum); + layout_of_enum( + self, + repr, + variants, + discr_range_of_repr, + discriminants, + dont_niche_optimize_enum, + dl, + ) } - - let largest_niche = Niche::from_scalar(dl, Size::ZERO, tag); - - let tagged_layout = LayoutS { - variants: Variants::Multiple { - tag, - tag_encoding: TagEncoding::Direct, - tag_field: 0, - variants: IndexVec::new(), - }, - fields: FieldsShape::Arbitrary { - offsets: [Size::ZERO].into(), - memory_index: [0].into(), - }, - largest_niche, - abi, - align, - size, - max_repr_align, - unadjusted_abi_align, - }; - - let tagged_layout = TmpLayout { layout: tagged_layout, variants: layout_variants }; - - let mut best_layout = match (tagged_layout, niche_filling_layout) { - (tl, Some(nl)) => { - // Pick the smaller layout; otherwise, - // pick the layout with the larger niche; otherwise, - // pick tagged as it has simpler codegen. - use cmp::Ordering::*; - let niche_size = |tmp_l: &TmpLayout<FieldIdx, VariantIdx>| { - tmp_l.layout.largest_niche.map_or(0, |n| n.available(dl)) - }; - match (tl.layout.size.cmp(&nl.layout.size), niche_size(&tl).cmp(&niche_size(&nl))) { - (Greater, _) => nl, - (Equal, Less) => nl, - _ => tl, - } - } - (tl, None) => tl, - }; - - // Now we can intern the variant layouts and store them in the enum layout. - best_layout.layout.variants = match best_layout.layout.variants { - Variants::Multiple { tag, tag_encoding, tag_field, .. } => { - Variants::Multiple { tag, tag_encoding, tag_field, variants: best_layout.variants } - } - Variants::Single { .. } => { - panic!("encountered a single-variant enum during multi-variant layout") - } - }; - Some(best_layout.layout) } fn layout_of_union< @@ -872,6 +335,593 @@ pub trait LayoutCalculator { } } +/// single-variant enums are just structs, if you think about it +fn layout_of_struct<'a, LC, FieldIdx: Idx, VariantIdx: Idx, F>( + layout_calc: &LC, + repr: &ReprOptions, + variants: &IndexSlice<VariantIdx, IndexVec<FieldIdx, F>>, + is_enum: bool, + is_unsafe_cell: bool, + scalar_valid_range: (Bound<u128>, Bound<u128>), + always_sized: bool, + dl: &TargetDataLayout, + present_first: VariantIdx, +) -> Option<LayoutS<FieldIdx, VariantIdx>> +where + LC: LayoutCalculator + ?Sized, + F: Deref<Target = &'a LayoutS<FieldIdx, VariantIdx>> + fmt::Debug, +{ + // Struct, or univariant enum equivalent to a struct. + // (Typechecking will reject discriminant-sizing attrs.) + + let v = present_first; + let kind = if is_enum || variants[v].is_empty() || always_sized { + StructKind::AlwaysSized + } else { + StructKind::MaybeUnsized + }; + + let mut st = layout_calc.univariant(dl, &variants[v], repr, kind)?; + st.variants = Variants::Single { index: v }; + + if is_unsafe_cell { + let hide_niches = |scalar: &mut _| match scalar { + Scalar::Initialized { value, valid_range } => { + *valid_range = WrappingRange::full(value.size(dl)) + } + // Already doesn't have any niches + Scalar::Union { .. } => {} + }; + match &mut st.abi { + Abi::Uninhabited => {} + Abi::Scalar(scalar) => hide_niches(scalar), + Abi::ScalarPair(a, b) => { + hide_niches(a); + hide_niches(b); + } + Abi::Vector { element, count: _ } => hide_niches(element), + Abi::Aggregate { sized: _ } => {} + } + st.largest_niche = None; + return Some(st); + } + + let (start, end) = scalar_valid_range; + match st.abi { + Abi::Scalar(ref mut scalar) | Abi::ScalarPair(ref mut scalar, _) => { + // Enlarging validity ranges would result in missed + // optimizations, *not* wrongly assuming the inner + // value is valid. e.g. unions already enlarge validity ranges, + // because the values may be uninitialized. + // + // Because of that we only check that the start and end + // of the range is representable with this scalar type. + + let max_value = scalar.size(dl).unsigned_int_max(); + if let Bound::Included(start) = start { + // FIXME(eddyb) this might be incorrect - it doesn't + // account for wrap-around (end < start) ranges. + assert!(start <= max_value, "{start} > {max_value}"); + scalar.valid_range_mut().start = start; + } + if let Bound::Included(end) = end { + // FIXME(eddyb) this might be incorrect - it doesn't + // account for wrap-around (end < start) ranges. + assert!(end <= max_value, "{end} > {max_value}"); + scalar.valid_range_mut().end = end; + } + + // Update `largest_niche` if we have introduced a larger niche. + let niche = Niche::from_scalar(dl, Size::ZERO, *scalar); + if let Some(niche) = niche { + match st.largest_niche { + Some(largest_niche) => { + // Replace the existing niche even if they're equal, + // because this one is at a lower offset. + if largest_niche.available(dl) <= niche.available(dl) { + st.largest_niche = Some(niche); + } + } + None => st.largest_niche = Some(niche), + } + } + } + _ => assert!( + start == Bound::Unbounded && end == Bound::Unbounded, + "nonscalar layout for layout_scalar_valid_range type: {st:#?}", + ), + } + + Some(st) +} + +fn layout_of_enum<'a, LC, FieldIdx: Idx, VariantIdx: Idx, F>( + layout_calc: &LC, + repr: &ReprOptions, + variants: &IndexSlice<VariantIdx, IndexVec<FieldIdx, F>>, + discr_range_of_repr: impl Fn(i128, i128) -> (Integer, bool), + discriminants: impl Iterator<Item = (VariantIdx, i128)>, + dont_niche_optimize_enum: bool, + dl: &TargetDataLayout, +) -> Option<LayoutS<FieldIdx, VariantIdx>> +where + LC: LayoutCalculator + ?Sized, + F: Deref<Target = &'a LayoutS<FieldIdx, VariantIdx>> + fmt::Debug, +{ + // Until we've decided whether to use the tagged or + // niche filling LayoutS, we don't want to intern the + // variant layouts, so we can't store them in the + // overall LayoutS. Store the overall LayoutS + // and the variant LayoutSs here until then. + struct TmpLayout<FieldIdx: Idx, VariantIdx: Idx> { + layout: LayoutS<FieldIdx, VariantIdx>, + variants: IndexVec<VariantIdx, LayoutS<FieldIdx, VariantIdx>>, + } + + let calculate_niche_filling_layout = || -> Option<TmpLayout<FieldIdx, VariantIdx>> { + if dont_niche_optimize_enum { + return None; + } + + if variants.len() < 2 { + return None; + } + + let mut align = dl.aggregate_align; + let mut max_repr_align = repr.align; + let mut unadjusted_abi_align = align.abi; + + let mut variant_layouts = variants + .iter_enumerated() + .map(|(j, v)| { + let mut st = layout_calc.univariant(dl, v, repr, StructKind::AlwaysSized)?; + st.variants = Variants::Single { index: j }; + + align = align.max(st.align); + max_repr_align = max_repr_align.max(st.max_repr_align); + unadjusted_abi_align = unadjusted_abi_align.max(st.unadjusted_abi_align); + + Some(st) + }) + .collect::<Option<IndexVec<VariantIdx, _>>>()?; + + let largest_variant_index = variant_layouts + .iter_enumerated() + .max_by_key(|(_i, layout)| layout.size.bytes()) + .map(|(i, _layout)| i)?; + + let all_indices = variants.indices(); + let needs_disc = + |index: VariantIdx| index != largest_variant_index && !absent(&variants[index]); + let niche_variants = all_indices.clone().find(|v| needs_disc(*v)).unwrap() + ..=all_indices.rev().find(|v| needs_disc(*v)).unwrap(); + + let count = + (niche_variants.end().index() as u128 - niche_variants.start().index() as u128) + 1; + + // Find the field with the largest niche + let (field_index, niche, (niche_start, niche_scalar)) = variants[largest_variant_index] + .iter() + .enumerate() + .filter_map(|(j, field)| Some((j, field.largest_niche?))) + .max_by_key(|(_, niche)| niche.available(dl)) + .and_then(|(j, niche)| Some((j, niche, niche.reserve(dl, count)?)))?; + let niche_offset = + niche.offset + variant_layouts[largest_variant_index].fields.offset(field_index); + let niche_size = niche.value.size(dl); + let size = variant_layouts[largest_variant_index].size.align_to(align.abi); + + let all_variants_fit = variant_layouts.iter_enumerated_mut().all(|(i, layout)| { + if i == largest_variant_index { + return true; + } + + layout.largest_niche = None; + + if layout.size <= niche_offset { + // This variant will fit before the niche. + return true; + } + + // Determine if it'll fit after the niche. + let this_align = layout.align.abi; + let this_offset = (niche_offset + niche_size).align_to(this_align); + + if this_offset + layout.size > size { + return false; + } + + // It'll fit, but we need to make some adjustments. + match layout.fields { + FieldsShape::Arbitrary { ref mut offsets, .. } => { + for offset in offsets.iter_mut() { + *offset += this_offset; + } + } + FieldsShape::Primitive | FieldsShape::Array { .. } | FieldsShape::Union(..) => { + panic!("Layout of fields should be Arbitrary for variants") + } + } + + // It can't be a Scalar or ScalarPair because the offset isn't 0. + if !layout.abi.is_uninhabited() { + layout.abi = Abi::Aggregate { sized: true }; + } + layout.size += this_offset; + + true + }); + + if !all_variants_fit { + return None; + } + + let largest_niche = Niche::from_scalar(dl, niche_offset, niche_scalar); + + let others_zst = variant_layouts + .iter_enumerated() + .all(|(i, layout)| i == largest_variant_index || layout.size == Size::ZERO); + let same_size = size == variant_layouts[largest_variant_index].size; + let same_align = align == variant_layouts[largest_variant_index].align; + + let abi = if variant_layouts.iter().all(|v| v.abi.is_uninhabited()) { + Abi::Uninhabited + } else if same_size && same_align && others_zst { + match variant_layouts[largest_variant_index].abi { + // When the total alignment and size match, we can use the + // same ABI as the scalar variant with the reserved niche. + Abi::Scalar(_) => Abi::Scalar(niche_scalar), + Abi::ScalarPair(first, second) => { + // Only the niche is guaranteed to be initialised, + // so use union layouts for the other primitive. + if niche_offset == Size::ZERO { + Abi::ScalarPair(niche_scalar, second.to_union()) + } else { + Abi::ScalarPair(first.to_union(), niche_scalar) + } + } + _ => Abi::Aggregate { sized: true }, + } + } else { + Abi::Aggregate { sized: true } + }; + + let layout = LayoutS { + variants: Variants::Multiple { + tag: niche_scalar, + tag_encoding: TagEncoding::Niche { + untagged_variant: largest_variant_index, + niche_variants, + niche_start, + }, + tag_field: 0, + variants: IndexVec::new(), + }, + fields: FieldsShape::Arbitrary { + offsets: [niche_offset].into(), + memory_index: [0].into(), + }, + abi, + largest_niche, + size, + align, + max_repr_align, + unadjusted_abi_align, + }; + + Some(TmpLayout { layout, variants: variant_layouts }) + }; + + let niche_filling_layout = calculate_niche_filling_layout(); + + let (mut min, mut max) = (i128::MAX, i128::MIN); + let discr_type = repr.discr_type(); + let bits = Integer::from_attr(dl, discr_type).size().bits(); + for (i, mut val) in discriminants { + if variants[i].iter().any(|f| f.abi.is_uninhabited()) { + continue; + } + if discr_type.is_signed() { + // sign extend the raw representation to be an i128 + val = (val << (128 - bits)) >> (128 - bits); + } + if val < min { + min = val; + } + if val > max { + max = val; + } + } + // We might have no inhabited variants, so pretend there's at least one. + if (min, max) == (i128::MAX, i128::MIN) { + min = 0; + max = 0; + } + assert!(min <= max, "discriminant range is {min}...{max}"); + let (min_ity, signed) = discr_range_of_repr(min, max); //Integer::repr_discr(tcx, ty, &repr, min, max); + + let mut align = dl.aggregate_align; + let mut max_repr_align = repr.align; + let mut unadjusted_abi_align = align.abi; + + let mut size = Size::ZERO; + + // We're interested in the smallest alignment, so start large. + let mut start_align = Align::from_bytes(256).unwrap(); + assert_eq!(Integer::for_align(dl, start_align), None); + + // repr(C) on an enum tells us to make a (tag, union) layout, + // so we need to grow the prefix alignment to be at least + // the alignment of the union. (This value is used both for + // determining the alignment of the overall enum, and the + // determining the alignment of the payload after the tag.) + let mut prefix_align = min_ity.align(dl).abi; + if repr.c() { + for fields in variants { + for field in fields { + prefix_align = prefix_align.max(field.align.abi); + } + } + } + + // Create the set of structs that represent each variant. + let mut layout_variants = variants + .iter_enumerated() + .map(|(i, field_layouts)| { + let mut st = layout_calc.univariant( + dl, + field_layouts, + repr, + StructKind::Prefixed(min_ity.size(), prefix_align), + )?; + st.variants = Variants::Single { index: i }; + // Find the first field we can't move later + // to make room for a larger discriminant. + for field_idx in st.fields.index_by_increasing_offset() { + let field = &field_layouts[FieldIdx::new(field_idx)]; + if !field.is_1zst() { + start_align = start_align.min(field.align.abi); + break; + } + } + size = cmp::max(size, st.size); + align = align.max(st.align); + max_repr_align = max_repr_align.max(st.max_repr_align); + unadjusted_abi_align = unadjusted_abi_align.max(st.unadjusted_abi_align); + Some(st) + }) + .collect::<Option<IndexVec<VariantIdx, _>>>()?; + + // Align the maximum variant size to the largest alignment. + size = size.align_to(align.abi); + + // FIXME(oli-obk): deduplicate and harden these checks + if size.bytes() >= dl.obj_size_bound() { + return None; + } + + let typeck_ity = Integer::from_attr(dl, repr.discr_type()); + if typeck_ity < min_ity { + // It is a bug if Layout decided on a greater discriminant size than typeck for + // some reason at this point (based on values discriminant can take on). Mostly + // because this discriminant will be loaded, and then stored into variable of + // type calculated by typeck. Consider such case (a bug): typeck decided on + // byte-sized discriminant, but layout thinks we need a 16-bit to store all + // discriminant values. That would be a bug, because then, in codegen, in order + // to store this 16-bit discriminant into 8-bit sized temporary some of the + // space necessary to represent would have to be discarded (or layout is wrong + // on thinking it needs 16 bits) + panic!( + "layout decided on a larger discriminant type ({min_ity:?}) than typeck ({typeck_ity:?})" + ); + // However, it is fine to make discr type however large (as an optimisation) + // after this point – we’ll just truncate the value we load in codegen. + } + + // Check to see if we should use a different type for the + // discriminant. We can safely use a type with the same size + // as the alignment of the first field of each variant. + // We increase the size of the discriminant to avoid LLVM copying + // padding when it doesn't need to. This normally causes unaligned + // load/stores and excessive memcpy/memset operations. By using a + // bigger integer size, LLVM can be sure about its contents and + // won't be so conservative. + + // Use the initial field alignment + let mut ity = if repr.c() || repr.int.is_some() { + min_ity + } else { + Integer::for_align(dl, start_align).unwrap_or(min_ity) + }; + + // If the alignment is not larger than the chosen discriminant size, + // don't use the alignment as the final size. + if ity <= min_ity { + ity = min_ity; + } else { + // Patch up the variants' first few fields. + let old_ity_size = min_ity.size(); + let new_ity_size = ity.size(); + for variant in &mut layout_variants { + match variant.fields { + FieldsShape::Arbitrary { ref mut offsets, .. } => { + for i in offsets { + if *i <= old_ity_size { + assert_eq!(*i, old_ity_size); + *i = new_ity_size; + } + } + // We might be making the struct larger. + if variant.size <= old_ity_size { + variant.size = new_ity_size; + } + } + FieldsShape::Primitive | FieldsShape::Array { .. } | FieldsShape::Union(..) => { + panic!("encountered a non-arbitrary layout during enum layout") + } + } + } + } + + let tag_mask = ity.size().unsigned_int_max(); + let tag = Scalar::Initialized { + value: Primitive::Int(ity, signed), + valid_range: WrappingRange { + start: (min as u128 & tag_mask), + end: (max as u128 & tag_mask), + }, + }; + let mut abi = Abi::Aggregate { sized: true }; + + if layout_variants.iter().all(|v| v.abi.is_uninhabited()) { + abi = Abi::Uninhabited; + } else if tag.size(dl) == size { + // Make sure we only use scalar layout when the enum is entirely its + // own tag (i.e. it has no padding nor any non-ZST variant fields). + abi = Abi::Scalar(tag); + } else { + // Try to use a ScalarPair for all tagged enums. + // That's possible only if we can find a common primitive type for all variants. + let mut common_prim = None; + let mut common_prim_initialized_in_all_variants = true; + for (field_layouts, layout_variant) in iter::zip(variants, &layout_variants) { + let FieldsShape::Arbitrary { ref offsets, .. } = layout_variant.fields else { + panic!("encountered a non-arbitrary layout during enum layout"); + }; + // We skip *all* ZST here and later check if we are good in terms of alignment. + // This lets us handle some cases involving aligned ZST. + let mut fields = iter::zip(field_layouts, offsets).filter(|p| !p.0.is_zst()); + let (field, offset) = match (fields.next(), fields.next()) { + (None, None) => { + common_prim_initialized_in_all_variants = false; + continue; + } + (Some(pair), None) => pair, + _ => { + common_prim = None; + break; + } + }; + let prim = match field.abi { + Abi::Scalar(scalar) => { + common_prim_initialized_in_all_variants &= + matches!(scalar, Scalar::Initialized { .. }); + scalar.primitive() + } + _ => { + common_prim = None; + break; + } + }; + if let Some(pair) = common_prim { + // This is pretty conservative. We could go fancier + // by conflating things like i32 and u32, or even + // realising that (u8, u8) could just cohabit with + // u16 or even u32. + if pair != (prim, offset) { + common_prim = None; + break; + } + } else { + common_prim = Some((prim, offset)); + } + } + if let Some((prim, offset)) = common_prim { + let prim_scalar = if common_prim_initialized_in_all_variants { + let size = prim.size(dl); + assert!(size.bits() <= 128); + Scalar::Initialized { value: prim, valid_range: WrappingRange::full(size) } + } else { + // Common prim might be uninit. + Scalar::Union { value: prim } + }; + let pair = layout_calc.scalar_pair::<FieldIdx, VariantIdx>(tag, prim_scalar); + let pair_offsets = match pair.fields { + FieldsShape::Arbitrary { ref offsets, ref memory_index } => { + assert_eq!(memory_index.raw, [0, 1]); + offsets + } + _ => panic!("encountered a non-arbitrary layout during enum layout"), + }; + if pair_offsets[FieldIdx::new(0)] == Size::ZERO + && pair_offsets[FieldIdx::new(1)] == *offset + && align == pair.align + && size == pair.size + { + // We can use `ScalarPair` only when it matches our + // already computed layout (including `#[repr(C)]`). + abi = pair.abi; + } + } + } + + // If we pick a "clever" (by-value) ABI, we might have to adjust the ABI of the + // variants to ensure they are consistent. This is because a downcast is + // semantically a NOP, and thus should not affect layout. + if matches!(abi, Abi::Scalar(..) | Abi::ScalarPair(..)) { + for variant in &mut layout_variants { + // We only do this for variants with fields; the others are not accessed anyway. + // Also do not overwrite any already existing "clever" ABIs. + if variant.fields.count() > 0 && matches!(variant.abi, Abi::Aggregate { .. }) { + variant.abi = abi; + // Also need to bump up the size and alignment, so that the entire value fits + // in here. + variant.size = cmp::max(variant.size, size); + variant.align.abi = cmp::max(variant.align.abi, align.abi); + } + } + } + + let largest_niche = Niche::from_scalar(dl, Size::ZERO, tag); + + let tagged_layout = LayoutS { + variants: Variants::Multiple { + tag, + tag_encoding: TagEncoding::Direct, + tag_field: 0, + variants: IndexVec::new(), + }, + fields: FieldsShape::Arbitrary { offsets: [Size::ZERO].into(), memory_index: [0].into() }, + largest_niche, + abi, + align, + size, + max_repr_align, + unadjusted_abi_align, + }; + + let tagged_layout = TmpLayout { layout: tagged_layout, variants: layout_variants }; + + let mut best_layout = match (tagged_layout, niche_filling_layout) { + (tl, Some(nl)) => { + // Pick the smaller layout; otherwise, + // pick the layout with the larger niche; otherwise, + // pick tagged as it has simpler codegen. + use cmp::Ordering::*; + let niche_size = |tmp_l: &TmpLayout<FieldIdx, VariantIdx>| { + tmp_l.layout.largest_niche.map_or(0, |n| n.available(dl)) + }; + match (tl.layout.size.cmp(&nl.layout.size), niche_size(&tl).cmp(&niche_size(&nl))) { + (Greater, _) => nl, + (Equal, Less) => nl, + _ => tl, + } + } + (tl, None) => tl, + }; + + // Now we can intern the variant layouts and store them in the enum layout. + best_layout.layout.variants = match best_layout.layout.variants { + Variants::Multiple { tag, tag_encoding, tag_field, .. } => { + Variants::Multiple { tag, tag_encoding, tag_field, variants: best_layout.variants } + } + Variants::Single { .. } => { + panic!("encountered a single-variant enum during multi-variant layout") + } + }; + Some(best_layout.layout) +} + /// Determines towards which end of a struct layout optimizations will try to place the best niches. enum NicheBias { Start, diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index 9d543563c0f..3496cfc38c8 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -286,41 +286,16 @@ impl ParenthesizedArgs { pub use crate::node_id::{NodeId, CRATE_NODE_ID, DUMMY_NODE_ID}; -/// A modifier on a bound, e.g., `?Trait` or `~const Trait`. -/// -/// Negative bounds should also be handled here. +/// Modifiers on a trait bound like `~const`, `?` and `!`. #[derive(Copy, Clone, PartialEq, Eq, Encodable, Decodable, Debug)] -pub enum TraitBoundModifier { - /// No modifiers - None, - - /// `!Trait` - Negative, - - /// `?Trait` - Maybe, - - /// `~const Trait` - MaybeConst(Span), - - /// `~const !Trait` - // - // This parses but will be rejected during AST validation. - MaybeConstNegative, - - /// `~const ?Trait` - // - // This parses but will be rejected during AST validation. - MaybeConstMaybe, +pub struct TraitBoundModifiers { + pub constness: BoundConstness, + pub polarity: BoundPolarity, } -impl TraitBoundModifier { - pub fn to_constness(self) -> Const { - match self { - Self::MaybeConst(span) => Const::Yes(span), - _ => Const::No, - } - } +impl TraitBoundModifiers { + pub const NONE: Self = + Self { constness: BoundConstness::Never, polarity: BoundPolarity::Positive }; } /// The AST represents all type param bounds as types. @@ -329,7 +304,7 @@ impl TraitBoundModifier { /// detects `Copy`, `Send` and `Sync`. #[derive(Clone, Encodable, Decodable, Debug)] pub enum GenericBound { - Trait(PolyTraitRef, TraitBoundModifier), + Trait(PolyTraitRef, TraitBoundModifiers), Outlives(Lifetime), } @@ -779,8 +754,7 @@ pub enum PatKind { Ident(BindingAnnotation, Ident, Option<P<Pat>>), /// A struct or struct variant pattern (e.g., `Variant {x, y, ..}`). - /// The `bool` is `true` in the presence of a `..`. - Struct(Option<P<QSelf>>, Path, ThinVec<PatField>, /* recovered */ bool), + Struct(Option<P<QSelf>>, Path, ThinVec<PatField>, PatFieldsRest), /// A tuple struct/variant pattern (`Variant(x, y, .., z)`). TupleStruct(Option<P<QSelf>>, Path, ThinVec<P<Pat>>), @@ -837,6 +811,15 @@ pub enum PatKind { MacCall(P<MacCall>), } +/// Whether the `..` is present in a struct fields pattern. +#[derive(Clone, Copy, Encodable, Decodable, Debug, PartialEq)] +pub enum PatFieldsRest { + /// `module::StructName { field, ..}` + Rest, + /// `module::StructName { field }` + None, +} + /// The kind of borrow in an `AddrOf` expression, /// e.g., `&place` or `&raw const place`. #[derive(Clone, Copy, PartialEq, Eq, Debug)] @@ -1193,7 +1176,7 @@ impl Expr { match &self.kind { ExprKind::Path(None, path) => Some(GenericBound::Trait( PolyTraitRef::new(ThinVec::new(), path.clone(), self.span), - TraitBoundModifier::None, + TraitBoundModifiers::NONE, )), _ => None, } @@ -1274,7 +1257,7 @@ impl Expr { ExprKind::Let(..) => ExprPrecedence::Let, ExprKind::If(..) => ExprPrecedence::If, ExprKind::While(..) => ExprPrecedence::While, - ExprKind::ForLoop(..) => ExprPrecedence::ForLoop, + ExprKind::ForLoop { .. } => ExprPrecedence::ForLoop, ExprKind::Loop(..) => ExprPrecedence::Loop, ExprKind::Match(..) => ExprPrecedence::Match, ExprKind::Closure(..) => ExprPrecedence::Closure, @@ -1436,10 +1419,10 @@ pub enum ExprKind { While(P<Expr>, P<Block>, Option<Label>), /// A `for` loop, with an optional label. /// - /// `'label: for pat in expr { block }` + /// `'label: for await? pat in iter { block }` /// /// This is desugared to a combination of `loop` and `match` expressions. - ForLoop(P<Pat>, P<Expr>, P<Block>, Option<Label>), + ForLoop { pat: P<Pat>, iter: P<Expr>, body: P<Block>, label: Option<Label>, kind: ForLoopKind }, /// Conditionless loop (can be exited with `break`, `continue`, or `return`). /// /// `'label: loop { block }` @@ -1542,6 +1525,13 @@ pub enum ExprKind { Err, } +/// Used to differentiate between `for` loops and `for await` loops. +#[derive(Clone, Copy, Encodable, Decodable, Debug, PartialEq, Eq)] +pub enum ForLoopKind { + For, + ForAwait, +} + /// Used to differentiate between `async {}` blocks and `gen {}` blocks. #[derive(Clone, Encodable, Decodable, Debug, PartialEq, Eq)] pub enum GenBlockKind { @@ -2491,6 +2481,15 @@ pub enum Const { No, } +impl From<BoundConstness> for Const { + fn from(constness: BoundConstness) -> Self { + match constness { + BoundConstness::Maybe(span) => Self::Yes(span), + BoundConstness::Never => Self::No, + } + } +} + /// Item defaultness. /// For details see the [RFC #2532](https://github.com/rust-lang/rfcs/pull/2532). #[derive(Copy, Clone, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)] @@ -2516,7 +2515,9 @@ impl fmt::Debug for ImplPolarity { } } -#[derive(Copy, Clone, PartialEq, Encodable, Decodable, HashStable_Generic)] +/// The polarity of a trait bound. +#[derive(Copy, Clone, PartialEq, Eq, Encodable, Decodable, Debug)] +#[derive(HashStable_Generic)] pub enum BoundPolarity { /// `Type: Trait` Positive, @@ -2526,6 +2527,35 @@ pub enum BoundPolarity { Maybe(Span), } +impl BoundPolarity { + pub fn as_str(self) -> &'static str { + match self { + Self::Positive => "", + Self::Negative(_) => "!", + Self::Maybe(_) => "?", + } + } +} + +/// The constness of a trait bound. +#[derive(Copy, Clone, PartialEq, Eq, Encodable, Decodable, Debug)] +#[derive(HashStable_Generic)] +pub enum BoundConstness { + /// `Type: Trait` + Never, + /// `Type: ~const Trait` + Maybe(Span), +} + +impl BoundConstness { + pub fn as_str(self) -> &'static str { + match self { + Self::Never => "", + Self::Maybe(_) => "~const", + } + } +} + #[derive(Clone, Encodable, Decodable, Debug)] pub enum FnRetTy { /// Returns type is not specified. @@ -2788,7 +2818,11 @@ pub enum VariantData { /// Struct variant. /// /// E.g., `Bar { .. }` as in `enum Foo { Bar { .. } }`. - Struct(ThinVec<FieldDef>, bool), + Struct { + fields: ThinVec<FieldDef>, + // FIXME: investigate making this a `Option<ErrorGuaranteed>` + recovered: bool, + }, /// Tuple variant. /// /// E.g., `Bar(..)` as in `enum Foo { Bar(..) }`. @@ -2803,7 +2837,7 @@ impl VariantData { /// Return the fields of this variant. pub fn fields(&self) -> &[FieldDef] { match self { - VariantData::Struct(fields, ..) | VariantData::Tuple(fields, _) => fields, + VariantData::Struct { fields, .. } | VariantData::Tuple(fields, _) => fields, _ => &[], } } @@ -2811,7 +2845,7 @@ impl VariantData { /// Return the `NodeId` of this variant's constructor, if it has one. pub fn ctor_node_id(&self) -> Option<NodeId> { match *self { - VariantData::Struct(..) => None, + VariantData::Struct { .. } => None, VariantData::Tuple(_, id) | VariantData::Unit(id) => Some(id), } } @@ -3255,7 +3289,7 @@ mod size_asserts { static_assert_size!(ForeignItem, 96); static_assert_size!(ForeignItemKind, 24); static_assert_size!(GenericArg, 24); - static_assert_size!(GenericBound, 64); + static_assert_size!(GenericBound, 72); static_assert_size!(Generics, 40); static_assert_size!(Impl, 136); static_assert_size!(Item, 136); diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs index 10b2025f937..82f28143630 100644 --- a/compiler/rustc_ast/src/mut_visit.rs +++ b/compiler/rustc_ast/src/mut_visit.rs @@ -976,7 +976,7 @@ pub fn noop_visit_where_predicate<T: MutVisitor>(pred: &mut WherePredicate, vis: pub fn noop_visit_variant_data<T: MutVisitor>(vdata: &mut VariantData, vis: &mut T) { match vdata { - VariantData::Struct(fields, ..) => { + VariantData::Struct { fields, .. } => { fields.flat_map_in_place(|field| vis.flat_map_field_def(field)); } VariantData::Tuple(fields, id) => { @@ -1389,7 +1389,7 @@ pub fn noop_visit_expr<T: MutVisitor>( vis.visit_block(body); visit_opt(label, |label| vis.visit_label(label)); } - ExprKind::ForLoop(pat, iter, body, label) => { + ExprKind::ForLoop { pat, iter, body, label, kind: _ } => { vis.visit_pat(pat); vis.visit_expr(iter); vis.visit_block(body); diff --git a/compiler/rustc_ast/src/util/classify.rs b/compiler/rustc_ast/src/util/classify.rs index 821fca6656c..65036bcdc36 100644 --- a/compiler/rustc_ast/src/util/classify.rs +++ b/compiler/rustc_ast/src/util/classify.rs @@ -19,7 +19,7 @@ pub fn expr_requires_semi_to_be_stmt(e: &ast::Expr) -> bool { | ast::ExprKind::Block(..) | ast::ExprKind::While(..) | ast::ExprKind::Loop(..) - | ast::ExprKind::ForLoop(..) + | ast::ExprKind::ForLoop { .. } | ast::ExprKind::TryBlock(..) | ast::ExprKind::ConstBlock(..) ) @@ -40,15 +40,52 @@ pub fn expr_trailing_brace(mut expr: &ast::Expr) -> Option<&ast::Expr> { | Range(_, Some(e), _) | Ret(Some(e)) | Unary(_, e) - | Yield(Some(e)) => { + | Yield(Some(e)) + | Yeet(Some(e)) + | Become(e) => { expr = e; } Closure(closure) => { expr = &closure.body; } - Gen(..) | Block(..) | ForLoop(..) | If(..) | Loop(..) | Match(..) | Struct(..) - | TryBlock(..) | While(..) => break Some(expr), - _ => break None, + Gen(..) + | Block(..) + | ForLoop { .. } + | If(..) + | Loop(..) + | Match(..) + | Struct(..) + | TryBlock(..) + | While(..) + | ConstBlock(_) => break Some(expr), + + // FIXME: These can end in `}`, but changing these would break stable code. + InlineAsm(_) | OffsetOf(_, _) | MacCall(_) | IncludedBytes(_) | FormatArgs(_) => { + break None; + } + + Break(_, None) + | Range(_, None, _) + | Ret(None) + | Yield(None) + | Array(_) + | Call(_, _) + | MethodCall(_) + | Tup(_) + | Lit(_) + | Cast(_, _) + | Type(_, _) + | Await(_, _) + | Field(_, _) + | Index(_, _, _) + | Underscore + | Path(_, _) + | Continue(_) + | Repeat(_, _) + | Paren(_) + | Try(_) + | Yeet(None) + | Err => break None, } } } diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs index 27f1b84f372..45261ca48fc 100644 --- a/compiler/rustc_ast/src/visit.rs +++ b/compiler/rustc_ast/src/visit.rs @@ -844,11 +844,11 @@ pub fn walk_expr<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expr) { visitor.visit_expr(subexpression); visitor.visit_block(block); } - ExprKind::ForLoop(pattern, subexpression, block, opt_label) => { - walk_list!(visitor, visit_label, opt_label); - visitor.visit_pat(pattern); - visitor.visit_expr(subexpression); - visitor.visit_block(block); + ExprKind::ForLoop { pat, iter, body, label, kind: _ } => { + walk_list!(visitor, visit_label, label); + visitor.visit_pat(pat); + visitor.visit_expr(iter); + visitor.visit_block(body); } ExprKind::Loop(block, opt_label, _) => { walk_list!(visitor, visit_label, opt_label); diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs index 11b5131b8d7..1f6d47ab453 100644 --- a/compiler/rustc_ast_lowering/src/expr.rs +++ b/compiler/rustc_ast_lowering/src/expr.rs @@ -56,12 +56,12 @@ impl<'hir> LoweringContext<'_, 'hir> { return ex; } // Desugar `ExprForLoop` - // from: `[opt_ident]: for <pat> in <head> <body>` + // from: `[opt_ident]: for await? <pat> in <iter> <body>` // // This also needs special handling because the HirId of the returned `hir::Expr` will not // correspond to the `e.id`, so `lower_expr_for` handles attribute lowering itself. - ExprKind::ForLoop(pat, head, body, opt_label) => { - return self.lower_expr_for(e, pat, head, body, *opt_label); + ExprKind::ForLoop { pat, iter, body, label, kind } => { + return self.lower_expr_for(e, pat, iter, body, *label, *kind); } _ => (), } @@ -337,7 +337,7 @@ impl<'hir> LoweringContext<'_, 'hir> { ), ExprKind::Try(sub_expr) => self.lower_expr_try(e.span, sub_expr), - ExprKind::Paren(_) | ExprKind::ForLoop(..) => { + ExprKind::Paren(_) | ExprKind::ForLoop { .. } => { unreachable!("already handled") } @@ -670,7 +670,10 @@ impl<'hir> LoweringContext<'_, 'hir> { let params = arena_vec![self; param]; let body = self.lower_body(move |this| { - this.coroutine_kind = Some(hir::CoroutineKind::Async(async_coroutine_source)); + this.coroutine_kind = Some(hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Async, + async_coroutine_source, + )); let old_ctx = this.task_context; this.task_context = Some(task_context_hid); @@ -724,7 +727,10 @@ impl<'hir> LoweringContext<'_, 'hir> { }); let body = self.lower_body(move |this| { - this.coroutine_kind = Some(hir::CoroutineKind::Gen(coroutine_source)); + this.coroutine_kind = Some(hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Gen, + coroutine_source, + )); let res = body(this); (&[], res) @@ -802,7 +808,10 @@ impl<'hir> LoweringContext<'_, 'hir> { let params = arena_vec![self; param]; let body = self.lower_body(move |this| { - this.coroutine_kind = Some(hir::CoroutineKind::AsyncGen(async_coroutine_source)); + this.coroutine_kind = Some(hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::AsyncGen, + async_coroutine_source, + )); let old_ctx = this.task_context; this.task_context = Some(task_context_hid); @@ -874,12 +883,25 @@ impl<'hir> LoweringContext<'_, 'hir> { /// } /// ``` fn lower_expr_await(&mut self, await_kw_span: Span, expr: &Expr) -> hir::ExprKind<'hir> { + let expr = self.arena.alloc(self.lower_expr_mut(expr)); + self.make_lowered_await(await_kw_span, expr, FutureKind::Future) + } + + /// Takes an expr that has already been lowered and generates a desugared await loop around it + fn make_lowered_await( + &mut self, + await_kw_span: Span, + expr: &'hir hir::Expr<'hir>, + await_kind: FutureKind, + ) -> hir::ExprKind<'hir> { let full_span = expr.span.to(await_kw_span); let is_async_gen = match self.coroutine_kind { - Some(hir::CoroutineKind::Async(_)) => false, - Some(hir::CoroutineKind::AsyncGen(_)) => true, - Some(hir::CoroutineKind::Coroutine) | Some(hir::CoroutineKind::Gen(_)) | None => { + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _)) => false, + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _)) => true, + Some(hir::CoroutineKind::Coroutine) + | Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _)) + | None => { return hir::ExprKind::Err(self.tcx.sess.emit_err(AwaitOnlyInAsyncFnAndBlocks { await_kw_span, item_span: self.current_item, @@ -887,13 +909,16 @@ impl<'hir> LoweringContext<'_, 'hir> { } }; - let span = self.mark_span_with_reason(DesugaringKind::Await, await_kw_span, None); + let features = match await_kind { + FutureKind::Future => None, + FutureKind::AsyncIterator => Some(self.allow_for_await.clone()), + }; + let span = self.mark_span_with_reason(DesugaringKind::Await, await_kw_span, features); let gen_future_span = self.mark_span_with_reason( DesugaringKind::Await, full_span, Some(self.allow_gen_future.clone()), ); - let expr = self.lower_expr_mut(expr); let expr_hir_id = expr.hir_id; // Note that the name of this binding must not be changed to something else because @@ -917,12 +942,13 @@ impl<'hir> LoweringContext<'_, 'hir> { let poll_expr = { let awaitee = self.expr_ident(span, awaitee_ident, awaitee_pat_hid); let ref_mut_awaitee = self.expr_mut_addr_of(span, awaitee); - let task_context = if let Some(task_context_hid) = self.task_context { - self.expr_ident_mut(span, task_context_ident, task_context_hid) - } else { - // Use of `await` outside of an async context, we cannot use `task_context` here. - self.expr_err(span, self.tcx.sess.span_delayed_bug(span, "no task_context hir id")) + + let Some(task_context_hid) = self.task_context else { + unreachable!("use of `await` outside of an async context."); }; + + let task_context = self.expr_ident_mut(span, task_context_ident, task_context_hid); + let new_unchecked = self.expr_call_lang_item_fn_mut( span, hir::LangItem::PinNewUnchecked, @@ -933,11 +959,18 @@ impl<'hir> LoweringContext<'_, 'hir> { hir::LangItem::GetContext, arena_vec![self; task_context], ); - let call = self.expr_call_lang_item_fn( - span, - hir::LangItem::FuturePoll, - arena_vec![self; new_unchecked, get_context], - ); + let call = match await_kind { + FutureKind::Future => self.expr_call_lang_item_fn( + span, + hir::LangItem::FuturePoll, + arena_vec![self; new_unchecked, get_context], + ), + FutureKind::AsyncIterator => self.expr_call_lang_item_fn( + span, + hir::LangItem::AsyncIteratorPollNext, + arena_vec![self; new_unchecked, get_context], + ), + }; self.arena.alloc(self.expr_unsafe(call)) }; @@ -991,16 +1024,14 @@ impl<'hir> LoweringContext<'_, 'hir> { ); let yield_expr = self.arena.alloc(yield_expr); - if let Some(task_context_hid) = self.task_context { - let lhs = self.expr_ident(span, task_context_ident, task_context_hid); - let assign = - self.expr(span, hir::ExprKind::Assign(lhs, yield_expr, self.lower_span(span))); - self.stmt_expr(span, assign) - } else { - // Use of `await` outside of an async context. Return `yield_expr` so that we can - // proceed with type checking. - self.stmt(span, hir::StmtKind::Semi(yield_expr)) - } + let Some(task_context_hid) = self.task_context else { + unreachable!("use of `await` outside of an async context."); + }; + + let lhs = self.expr_ident(span, task_context_ident, task_context_hid); + let assign = + self.expr(span, hir::ExprKind::Assign(lhs, yield_expr, self.lower_span(span))); + self.stmt_expr(span, assign) }; let loop_block = self.block_all(span, arena_vec![self; inner_match_stmt, yield_stmt], None); @@ -1021,11 +1052,16 @@ impl<'hir> LoweringContext<'_, 'hir> { let awaitee_arm = self.arm(awaitee_pat, loop_expr); // `match ::std::future::IntoFuture::into_future(<expr>) { ... }` - let into_future_expr = self.expr_call_lang_item_fn( - span, - hir::LangItem::IntoFutureIntoFuture, - arena_vec![self; expr], - ); + let into_future_expr = match await_kind { + FutureKind::Future => self.expr_call_lang_item_fn( + span, + hir::LangItem::IntoFutureIntoFuture, + arena_vec![self; *expr], + ), + // Not needed for `for await` because we expect to have already called + // `IntoAsyncIterator::into_async_iter` on it. + FutureKind::AsyncIterator => expr, + }; // match <into_future_expr> { // mut __awaitee => loop { .. } @@ -1098,9 +1134,9 @@ impl<'hir> LoweringContext<'_, 'hir> { Some(movability) } Some( - hir::CoroutineKind::Gen(_) - | hir::CoroutineKind::Async(_) - | hir::CoroutineKind::AsyncGen(_), + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _) + | hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _) + | hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _), ) => { panic!("non-`async`/`gen` closure body turned `async`/`gen` during lowering"); } @@ -1613,9 +1649,9 @@ impl<'hir> LoweringContext<'_, 'hir> { fn lower_expr_yield(&mut self, span: Span, opt_expr: Option<&Expr>) -> hir::ExprKind<'hir> { let is_async_gen = match self.coroutine_kind { - Some(hir::CoroutineKind::Gen(_)) => false, - Some(hir::CoroutineKind::AsyncGen(_)) => true, - Some(hir::CoroutineKind::Async(_)) => { + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _)) => false, + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _)) => true, + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _)) => { return hir::ExprKind::Err( self.tcx.sess.emit_err(AsyncCoroutinesNotSupported { span }), ); @@ -1635,19 +1671,32 @@ impl<'hir> LoweringContext<'_, 'hir> { } }; - let mut yielded = + let yielded = opt_expr.as_ref().map(|x| self.lower_expr(x)).unwrap_or_else(|| self.expr_unit(span)); if is_async_gen { - // yield async_gen_ready($expr); - yielded = self.expr_call_lang_item_fn( + // `yield $expr` is transformed into `task_context = yield async_gen_ready($expr)`. + // This ensures that we store our resumed `ResumeContext` correctly, and also that + // the apparent value of the `yield` expression is `()`. + let wrapped_yielded = self.expr_call_lang_item_fn( span, hir::LangItem::AsyncGenReady, std::slice::from_ref(yielded), ); - } + let yield_expr = self.arena.alloc( + self.expr(span, hir::ExprKind::Yield(wrapped_yielded, hir::YieldSource::Yield)), + ); + + let Some(task_context_hid) = self.task_context else { + unreachable!("use of `await` outside of an async context."); + }; + let task_context_ident = Ident::with_dummy_span(sym::_task_context); + let lhs = self.expr_ident(span, task_context_ident, task_context_hid); - hir::ExprKind::Yield(yielded, hir::YieldSource::Yield) + hir::ExprKind::Assign(lhs, yield_expr, self.lower_span(span)) + } else { + hir::ExprKind::Yield(yielded, hir::YieldSource::Yield) + } } /// Desugar `ExprForLoop` from: `[opt_ident]: for <pat> in <head> <body>` into: @@ -1673,6 +1722,7 @@ impl<'hir> LoweringContext<'_, 'hir> { head: &Expr, body: &Block, opt_label: Option<Label>, + loop_kind: ForLoopKind, ) -> hir::Expr<'hir> { let head = self.lower_expr_mut(head); let pat = self.lower_pat(pat); @@ -1701,17 +1751,41 @@ impl<'hir> LoweringContext<'_, 'hir> { let (iter_pat, iter_pat_nid) = self.pat_ident_binding_mode(head_span, iter, hir::BindingAnnotation::MUT); - // `match Iterator::next(&mut iter) { ... }` let match_expr = { let iter = self.expr_ident(head_span, iter, iter_pat_nid); - let ref_mut_iter = self.expr_mut_addr_of(head_span, iter); - let next_expr = self.expr_call_lang_item_fn( - head_span, - hir::LangItem::IteratorNext, - arena_vec![self; ref_mut_iter], - ); + let next_expr = match loop_kind { + ForLoopKind::For => { + // `Iterator::next(&mut iter)` + let ref_mut_iter = self.expr_mut_addr_of(head_span, iter); + self.expr_call_lang_item_fn( + head_span, + hir::LangItem::IteratorNext, + arena_vec![self; ref_mut_iter], + ) + } + ForLoopKind::ForAwait => { + // we'll generate `unsafe { Pin::new_unchecked(&mut iter) })` and then pass this + // to make_lowered_await with `FutureKind::AsyncIterator` which will generator + // calls to `poll_next`. In user code, this would probably be a call to + // `Pin::as_mut` but here it's easy enough to do `new_unchecked`. + + // `&mut iter` + let iter = self.expr_mut_addr_of(head_span, iter); + // `Pin::new_unchecked(...)` + let iter = self.arena.alloc(self.expr_call_lang_item_fn_mut( + head_span, + hir::LangItem::PinNewUnchecked, + arena_vec![self; iter], + )); + // `unsafe { ... }` + let iter = self.arena.alloc(self.expr_unsafe(iter)); + let kind = self.make_lowered_await(head_span, iter, FutureKind::AsyncIterator); + self.arena.alloc(hir::Expr { hir_id: self.next_id(), kind, span: head_span }) + } + }; let arms = arena_vec![self; none_arm, some_arm]; + // `match $next_expr { ... }` self.expr_match(head_span, next_expr, arms, hir::MatchSource::ForLoopDesugar) }; let match_stmt = self.stmt_expr(for_span, match_expr); @@ -1731,13 +1805,34 @@ impl<'hir> LoweringContext<'_, 'hir> { // `mut iter => { ... }` let iter_arm = self.arm(iter_pat, loop_expr); - // `match ::std::iter::IntoIterator::into_iter(<head>) { ... }` - let into_iter_expr = { - self.expr_call_lang_item_fn( - head_span, - hir::LangItem::IntoIterIntoIter, - arena_vec![self; head], - ) + let into_iter_expr = match loop_kind { + ForLoopKind::For => { + // `::std::iter::IntoIterator::into_iter(<head>)` + self.expr_call_lang_item_fn( + head_span, + hir::LangItem::IntoIterIntoIter, + arena_vec![self; head], + ) + } + // ` unsafe { Pin::new_unchecked(&mut into_async_iter(<head>)) }` + ForLoopKind::ForAwait => { + // `::core::async_iter::IntoAsyncIterator::into_async_iter(<head>)` + let iter = self.expr_call_lang_item_fn( + head_span, + hir::LangItem::IntoAsyncIterIntoIter, + arena_vec![self; head], + ); + let iter = self.expr_mut_addr_of(head_span, iter); + // `Pin::new_unchecked(...)` + let iter = self.arena.alloc(self.expr_call_lang_item_fn_mut( + head_span, + hir::LangItem::PinNewUnchecked, + arena_vec![self; iter], + )); + // `unsafe { ... }` + let iter = self.arena.alloc(self.expr_unsafe(iter)); + iter + } }; let match_expr = self.arena.alloc(self.expr_match( @@ -2140,3 +2235,14 @@ impl<'hir> LoweringContext<'_, 'hir> { } } } + +/// Used by [`LoweringContext::make_lowered_await`] to customize the desugaring based on what kind +/// of future we are awaiting. +#[derive(Copy, Clone, Debug, PartialEq, Eq)] +enum FutureKind { + /// We are awaiting a normal future + Future, + /// We are awaiting something that's known to be an AsyncIterator (i.e. we are in the header of + /// a `for await` loop) + AsyncIterator, +} diff --git a/compiler/rustc_ast_lowering/src/index.rs b/compiler/rustc_ast_lowering/src/index.rs index f042f46e59c..993ddf00eb5 100644 --- a/compiler/rustc_ast_lowering/src/index.rs +++ b/compiler/rustc_ast_lowering/src/index.rs @@ -1,7 +1,6 @@ -use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::sorted_map::SortedMap; use rustc_hir as hir; -use rustc_hir::def_id::LocalDefId; +use rustc_hir::def_id::{LocalDefId, LocalDefIdMap}; use rustc_hir::intravisit::Visitor; use rustc_hir::*; use rustc_index::{Idx, IndexVec}; @@ -17,7 +16,7 @@ struct NodeCollector<'a, 'hir> { /// Outputs nodes: IndexVec<ItemLocalId, Option<ParentedNode<'hir>>>, - parenting: FxHashMap<LocalDefId, ItemLocalId>, + parenting: LocalDefIdMap<ItemLocalId>, /// The parent of this node parent_node: hir::ItemLocalId, @@ -30,7 +29,7 @@ pub(super) fn index_hir<'hir>( tcx: TyCtxt<'hir>, item: hir::OwnerNode<'hir>, bodies: &SortedMap<ItemLocalId, &'hir Body<'hir>>, -) -> (IndexVec<ItemLocalId, Option<ParentedNode<'hir>>>, FxHashMap<LocalDefId, ItemLocalId>) { +) -> (IndexVec<ItemLocalId, Option<ParentedNode<'hir>>>, LocalDefIdMap<ItemLocalId>) { let mut nodes = IndexVec::new(); // This node's parent should never be accessed: the owner's parent is computed by the // hir_owner_parent query. Make it invalid (= ItemLocalId::MAX) to force an ICE whenever it is @@ -42,7 +41,7 @@ pub(super) fn index_hir<'hir>( parent_node: ItemLocalId::new(0), nodes, bodies, - parenting: FxHashMap::default(), + parenting: Default::default(), }; match item { diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index 83452c22280..9c990cb4619 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -661,11 +661,12 @@ impl<'hir> LoweringContext<'_, 'hir> { vdata: &VariantData, ) -> hir::VariantData<'hir> { match vdata { - VariantData::Struct(fields, recovered) => hir::VariantData::Struct( - self.arena + VariantData::Struct { fields, recovered } => hir::VariantData::Struct { + fields: self + .arena .alloc_from_iter(fields.iter().enumerate().map(|f| self.lower_field_def(f))), - *recovered, - ), + recovered: *recovered, + }, VariantData::Tuple(fields, id) => { let ctor_id = self.lower_node_id(*id); self.alias_attrs(ctor_id, parent_id); @@ -1371,7 +1372,13 @@ impl<'hir> LoweringContext<'_, 'hir> { // need to compute this at all unless there is a Maybe bound. let mut is_param: Option<bool> = None; for bound in &bound_pred.bounds { - if !matches!(*bound, GenericBound::Trait(_, TraitBoundModifier::Maybe)) { + if !matches!( + *bound, + GenericBound::Trait( + _, + TraitBoundModifiers { polarity: BoundPolarity::Maybe(_), .. } + ) + ) { continue; } let is_param = *is_param.get_or_insert_with(compute_is_param); diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index 5c9e43f1e06..e35d7d62cad 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -44,25 +44,23 @@ extern crate tracing; use crate::errors::{AssocTyParentheses, AssocTyParenthesesSub, MisplacedImplTrait}; +use rustc_ast::node_id::NodeMap; use rustc_ast::ptr::P; use rustc_ast::{self as ast, *}; use rustc_ast_pretty::pprust; use rustc_data_structures::captures::Captures; use rustc_data_structures::fingerprint::Fingerprint; -use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::sorted_map::SortedMap; use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; use rustc_data_structures::sync::Lrc; use rustc_errors::{DiagnosticArgFromDisplay, StashKey}; use rustc_hir as hir; use rustc_hir::def::{DefKind, LifetimeRes, Namespace, PartialRes, PerNS, Res}; -use rustc_hir::def_id::{LocalDefId, CRATE_DEF_ID, LOCAL_CRATE}; -use rustc_hir::{ConstArg, GenericArg, ItemLocalId, ParamName, TraitCandidate}; +use rustc_hir::def_id::{LocalDefId, LocalDefIdMap, CRATE_DEF_ID, LOCAL_CRATE}; +use rustc_hir::{ConstArg, GenericArg, ItemLocalMap, ParamName, TraitCandidate}; use rustc_index::{Idx, IndexSlice, IndexVec}; -use rustc_middle::{ - span_bug, - ty::{ResolverAstLowering, TyCtxt}, -}; +use rustc_middle::span_bug; +use rustc_middle::ty::{ResolverAstLowering, TyCtxt}; use rustc_session::parse::{add_feature_diagnostics, feature_err}; use rustc_span::symbol::{kw, sym, Ident, Symbol}; use rustc_span::{DesugaringKind, Span, DUMMY_SP}; @@ -121,23 +119,24 @@ struct LoweringContext<'a, 'hir> { current_hir_id_owner: hir::OwnerId, item_local_id_counter: hir::ItemLocalId, - trait_map: FxHashMap<ItemLocalId, Box<[TraitCandidate]>>, + trait_map: ItemLocalMap<Box<[TraitCandidate]>>, impl_trait_defs: Vec<hir::GenericParam<'hir>>, impl_trait_bounds: Vec<hir::WherePredicate<'hir>>, /// NodeIds that are lowered inside the current HIR owner. - node_id_to_local_id: FxHashMap<NodeId, hir::ItemLocalId>, + node_id_to_local_id: NodeMap<hir::ItemLocalId>, allow_try_trait: Lrc<[Symbol]>, allow_gen_future: Lrc<[Symbol]>, allow_async_iterator: Lrc<[Symbol]>, + allow_for_await: Lrc<[Symbol]>, /// Mapping from generics `def_id`s to TAIT generics `def_id`s. /// For each captured lifetime (e.g., 'a), we create a new lifetime parameter that is a generic /// defined on the TAIT, so we have type Foo<'a1> = ... and we establish a mapping in this /// field from the original parameter 'a to the new parameter 'a1. - generics_def_id_map: Vec<FxHashMap<LocalDefId, LocalDefId>>, + generics_def_id_map: Vec<LocalDefIdMap<LocalDefId>>, host_param_id: Option<LocalDefId>, } @@ -176,6 +175,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { } else { [sym::gen_future].into() }, + allow_for_await: [sym::async_iterator].into(), // FIXME(gen_blocks): how does `closure_track_caller`/`async_fn_track_caller` // interact with `gen`/`async gen` blocks allow_async_iterator: [sym::gen_future, sym::async_iterator].into(), @@ -382,7 +382,7 @@ enum AstOwner<'a> { } fn index_crate<'a>( - node_id_to_def_id: &FxHashMap<NodeId, LocalDefId>, + node_id_to_def_id: &NodeMap<LocalDefId>, krate: &'a Crate, ) -> IndexVec<LocalDefId, AstOwner<'a>> { let mut indexer = Indexer { node_id_to_def_id, index: IndexVec::new() }; @@ -392,7 +392,7 @@ fn index_crate<'a>( return indexer.index; struct Indexer<'s, 'a> { - node_id_to_def_id: &'s FxHashMap<NodeId, LocalDefId>, + node_id_to_def_id: &'s NodeMap<LocalDefId>, index: IndexVec<LocalDefId, AstOwner<'a>>, } @@ -644,7 +644,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { /// `'a` declared on the TAIT, instead of the function. fn with_remapping<R>( &mut self, - remap: FxHashMap<LocalDefId, LocalDefId>, + remap: LocalDefIdMap<LocalDefId>, f: impl FnOnce(&mut Self) -> R, ) -> R { self.generics_def_id_map.push(remap); @@ -1427,19 +1427,16 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { this.arena.alloc_from_iter(bounds.iter().filter_map(|bound| match bound { GenericBound::Trait( ty, - modifier @ (TraitBoundModifier::None - | TraitBoundModifier::MaybeConst(_) - | TraitBoundModifier::Negative), - ) => { - Some(this.lower_poly_trait_ref(ty, itctx, modifier.to_constness())) - } - // `~const ?Bound` will cause an error during AST validation - // anyways, so treat it like `?Bound` as compilation proceeds. + TraitBoundModifiers { + polarity: BoundPolarity::Positive | BoundPolarity::Negative(_), + constness, + }, + ) => Some(this.lower_poly_trait_ref(ty, itctx, (*constness).into())), + // We can safely ignore constness here, since AST validation + // will take care of invalid modifier combinations. GenericBound::Trait( _, - TraitBoundModifier::Maybe - | TraitBoundModifier::MaybeConstMaybe - | TraitBoundModifier::MaybeConstNegative, + TraitBoundModifiers { polarity: BoundPolarity::Maybe(_), .. }, ) => None, GenericBound::Outlives(lifetime) => { if lifetime_bound.is_none() { @@ -1655,7 +1652,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { // Map from captured (old) lifetime to synthetic (new) lifetime. // Used to resolve lifetimes in the bounds of the opaque. - let mut captured_to_synthesized_mapping = FxHashMap::default(); + let mut captured_to_synthesized_mapping = LocalDefIdMap::default(); // List of (early-bound) synthetic lifetimes that are owned by the opaque. // This is used to create the `hir::Generics` owned by the opaque. let mut synthesized_lifetime_definitions = vec![]; @@ -2030,9 +2027,9 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { itctx: &ImplTraitContext, ) -> hir::GenericBound<'hir> { match tpb { - GenericBound::Trait(p, modifier) => hir::GenericBound::Trait( - self.lower_poly_trait_ref(p, itctx, modifier.to_constness()), - self.lower_trait_bound_modifier(*modifier), + GenericBound::Trait(p, modifiers) => hir::GenericBound::Trait( + self.lower_poly_trait_ref(p, itctx, modifiers.constness.into()), + self.lower_trait_bound_modifiers(*modifiers), ), GenericBound::Outlives(lifetime) => { hir::GenericBound::Outlives(self.lower_lifetime(lifetime)) @@ -2318,25 +2315,29 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { } } - fn lower_trait_bound_modifier(&mut self, f: TraitBoundModifier) -> hir::TraitBoundModifier { - match f { - TraitBoundModifier::None => hir::TraitBoundModifier::None, - TraitBoundModifier::MaybeConst(_) => hir::TraitBoundModifier::MaybeConst, - - TraitBoundModifier::Negative => { + fn lower_trait_bound_modifiers( + &mut self, + modifiers: TraitBoundModifiers, + ) -> hir::TraitBoundModifier { + match (modifiers.constness, modifiers.polarity) { + (BoundConstness::Never, BoundPolarity::Positive) => hir::TraitBoundModifier::None, + (BoundConstness::Never, BoundPolarity::Maybe(_)) => hir::TraitBoundModifier::Maybe, + (BoundConstness::Never, BoundPolarity::Negative(_)) => { if self.tcx.features().negative_bounds { hir::TraitBoundModifier::Negative } else { hir::TraitBoundModifier::None } } - - // `MaybeConstMaybe` will cause an error during AST validation, but we need to pick a - // placeholder for compilation to proceed. - TraitBoundModifier::MaybeConstMaybe | TraitBoundModifier::Maybe => { - hir::TraitBoundModifier::Maybe + (BoundConstness::Maybe(_), BoundPolarity::Positive) => { + hir::TraitBoundModifier::MaybeConst + } + // Invalid modifier combinations will cause an error during AST validation. + // Arbitrarily pick a placeholder for compilation to proceed. + (BoundConstness::Maybe(_), BoundPolarity::Maybe(_)) => hir::TraitBoundModifier::Maybe, + (BoundConstness::Maybe(_), BoundPolarity::Negative(_)) => { + hir::TraitBoundModifier::MaybeConst } - TraitBoundModifier::MaybeConstNegative => hir::TraitBoundModifier::MaybeConst, } } diff --git a/compiler/rustc_ast_lowering/src/pat.rs b/compiler/rustc_ast_lowering/src/pat.rs index 017314ee4d1..3ffa4f1f2e6 100644 --- a/compiler/rustc_ast_lowering/src/pat.rs +++ b/compiler/rustc_ast_lowering/src/pat.rs @@ -82,7 +82,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { span: self.lower_span(f.span), } })); - break hir::PatKind::Struct(qpath, fs, *etc); + break hir::PatKind::Struct(qpath, fs, *etc == ast::PatFieldsRest::Rest); } PatKind::Tuple(pats) => { let (pats, ddpos) = self.lower_pat_tuple(pats, "tuple"); diff --git a/compiler/rustc_ast_lowering/src/path.rs b/compiler/rustc_ast_lowering/src/path.rs index efd80af5ef4..5ceeb72f291 100644 --- a/compiler/rustc_ast_lowering/src/path.rs +++ b/compiler/rustc_ast_lowering/src/path.rs @@ -9,6 +9,7 @@ use rustc_ast::{self as ast, *}; use rustc_hir as hir; use rustc_hir::def::{DefKind, PartialRes, Res}; use rustc_hir::GenericArg; +use rustc_middle::span_bug; use rustc_span::symbol::{kw, sym, Ident}; use rustc_span::{BytePos, Span, DUMMY_SP}; @@ -139,7 +140,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { // We should've returned in the for loop above. - self.tcx.sess.diagnostic().span_bug( + self.tcx.sess.dcx().span_bug( p.span, format!( "lower_qpath: no final extension segment in {}..{}", @@ -285,7 +286,9 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { let (start, end) = match self.resolver.get_lifetime_res(segment_id) { Some(LifetimeRes::ElidedAnchor { start, end }) => (start, end), None => return, - Some(_) => panic!(), + Some(res) => { + span_bug!(path_span, "expected an elided lifetime to insert. found {res:?}") + } }; let expected_lifetimes = end.as_usize() - start.as_usize(); debug!(expected_lifetimes); diff --git a/compiler/rustc_ast_passes/messages.ftl b/compiler/rustc_ast_passes/messages.ftl index 28bd6c2111b..ea3cd3e4bee 100644 --- a/compiler/rustc_ast_passes/messages.ftl +++ b/compiler/rustc_ast_passes/messages.ftl @@ -117,13 +117,13 @@ ast_passes_fn_without_body = free function without a body .suggestion = provide a definition for the function +ast_passes_forbidden_bound = + bounds cannot be used in this context + ast_passes_forbidden_default = `default` is only allowed on items in trait impls .label = `default` because of this -ast_passes_forbidden_lifetime_bound = - lifetime bounds cannot be used in this context - ast_passes_forbidden_non_lifetime_param = only lifetime parameters can be used in this context @@ -152,6 +152,8 @@ ast_passes_impl_trait_path = `impl Trait` is not allowed in path parameters ast_passes_incompatible_features = `{$f1}` and `{$f2}` are incompatible, using them at the same time is not allowed .help = remove one of these features +ast_passes_incompatible_trait_bound_modifiers = `{$left}` and `{$right}` are mutually exclusive + ast_passes_inherent_cannot_be = inherent impls cannot be {$annotation} .because = {$annotation} because of this .type = inherent impl for this type @@ -195,8 +197,6 @@ ast_passes_nomangle_ascii = `#[no_mangle]` requires ASCII identifier ast_passes_obsolete_auto = `impl Trait for .. {"{}"}` is an obsolete syntax .help = use `auto trait Trait {"{}"}` instead -ast_passes_optional_const_exclusive = `~const` and `{$modifier}` are mutually exclusive - ast_passes_optional_trait_object = `?Trait` is not permitted in trait object types ast_passes_optional_trait_supertrait = `?Trait` is not permitted in supertraits @@ -225,7 +225,8 @@ ast_passes_tilde_const_disallowed = `~const` is not allowed here .closure = closures cannot have `~const` trait bounds .function = this function is not `const`, so it cannot have `~const` trait bounds .trait = this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds - .impl = this impl is not `const`, so it cannot have `~const` trait bounds + .trait_impl = this impl is not `const`, so it cannot have `~const` trait bounds + .impl = inherent impls cannot have `~const` trait bounds .object = trait objects cannot have `~const` trait bounds .item = this item cannot have `~const` trait bounds diff --git a/compiler/rustc_ast_passes/src/ast_validation.rs b/compiler/rustc_ast_passes/src/ast_validation.rs index 59cf18c2459..23a45749455 100644 --- a/compiler/rustc_ast_passes/src/ast_validation.rs +++ b/compiler/rustc_ast_passes/src/ast_validation.rs @@ -41,6 +41,7 @@ enum DisallowTildeConstContext<'a> { TraitObject, Fn(FnKind<'a>), Trait(Span), + TraitImpl(Span), Impl(Span), Item, } @@ -220,8 +221,8 @@ impl<'a> AstValidator<'a> { } } - fn err_handler(&self) -> &rustc_errors::Handler { - self.session.diagnostic() + fn dcx(&self) -> &rustc_errors::DiagCtxt { + self.session.dcx() } fn check_lifetime(&self, ident: Ident) { @@ -269,7 +270,7 @@ impl<'a> AstValidator<'a> { ) { return; } - self.err_handler().emit_err(errors::InvalidUnnamedFieldTy { span, ty_span: ty.span }); + self.dcx().emit_err(errors::InvalidUnnamedFieldTy { span, ty_span: ty.span }); } fn deny_anon_struct_or_union(&self, ty: &Ty) { @@ -278,15 +279,14 @@ impl<'a> AstValidator<'a> { TyKind::AnonUnion(..) => "union", _ => return, }; - self.err_handler() - .emit_err(errors::AnonStructOrUnionNotAllowed { struct_or_union, span: ty.span }); + self.dcx().emit_err(errors::AnonStructOrUnionNotAllowed { struct_or_union, span: ty.span }); } fn deny_unnamed_field(&self, field: &FieldDef) { if let Some(ident) = field.ident && ident.name == kw::Underscore { - self.err_handler() + self.dcx() .emit_err(errors::InvalidUnnamedField { span: field.span, ident_span: ident.span }); } } @@ -392,7 +392,7 @@ impl<'a> AstValidator<'a> { [b0] => b0.span(), [b0, .., bl] => b0.span().to(bl.span()), }; - self.err_handler().emit_err(errors::BoundInContext { span, ctx }); + self.dcx().emit_err(errors::BoundInContext { span, ctx }); } fn check_foreign_ty_genericless( @@ -402,7 +402,7 @@ impl<'a> AstValidator<'a> { after_where_clause: &TyAliasWhereClause, ) { let cannot_have = |span, descr, remove_descr| { - self.err_handler().emit_err(errors::ExternTypesCannotHave { + self.dcx().emit_err(errors::ExternTypesCannotHave { span, descr, remove_descr, @@ -428,7 +428,7 @@ impl<'a> AstValidator<'a> { let Some(body) = body else { return; }; - self.err_handler().emit_err(errors::BodyInExtern { + self.dcx().emit_err(errors::BodyInExtern { span: ident.span, body, block: self.current_extern_span(), @@ -441,7 +441,7 @@ impl<'a> AstValidator<'a> { let Some(body) = body else { return; }; - self.err_handler().emit_err(errors::FnBodyInExtern { + self.dcx().emit_err(errors::FnBodyInExtern { span: ident.span, body: body.span, block: self.current_extern_span(), @@ -455,7 +455,7 @@ impl<'a> AstValidator<'a> { /// An `fn` in `extern { ... }` cannot have qualifiers, e.g. `async fn`. fn check_foreign_fn_headerless(&self, ident: Ident, span: Span, header: FnHeader) { if header.has_qualifiers() { - self.err_handler().emit_err(errors::FnQualifierInExtern { + self.dcx().emit_err(errors::FnQualifierInExtern { span: ident.span, block: self.current_extern_span(), sugg_span: span.until(ident.span.shrink_to_lo()), @@ -466,7 +466,7 @@ impl<'a> AstValidator<'a> { /// An item in `extern { ... }` cannot use non-ascii identifier. fn check_foreign_item_ascii_only(&self, ident: Ident) { if !ident.as_str().is_ascii() { - self.err_handler().emit_err(errors::ExternItemAscii { + self.dcx().emit_err(errors::ExternItemAscii { span: ident.span, block: self.current_extern_span(), }); @@ -495,7 +495,7 @@ impl<'a> AstValidator<'a> { if let Const::Yes(const_span) = header.constness { let mut spans = variadic_spans.clone(); spans.push(const_span); - self.err_handler().emit_err(errors::ConstAndCVariadic { + self.dcx().emit_err(errors::ConstAndCVariadic { spans, const_span, variadic_spans: variadic_spans.clone(), @@ -517,14 +517,14 @@ impl<'a> AstValidator<'a> { _ => {} }; - self.err_handler().emit_err(errors::BadCVariadic { span: variadic_spans }); + self.dcx().emit_err(errors::BadCVariadic { span: variadic_spans }); } fn check_item_named(&self, ident: Ident, kind: &str) { if ident.name != kw::Underscore { return; } - self.err_handler().emit_err(errors::ItemUnderscore { span: ident.span, kind }); + self.dcx().emit_err(errors::ItemUnderscore { span: ident.span, kind }); } fn check_nomangle_item_asciionly(&self, ident: Ident, item_span: Span) { @@ -615,7 +615,7 @@ impl<'a> AstValidator<'a> { let args_len = arg_spans.len(); let constraint_len = constraint_spans.len(); // ...and then error: - self.err_handler().emit_err(errors::ArgsBeforeConstraint { + self.dcx().emit_err(errors::ArgsBeforeConstraint { arg_spans: arg_spans.clone(), constraints: constraint_spans[0], args: *arg_spans.iter().last().unwrap(), @@ -667,7 +667,7 @@ impl<'a> AstValidator<'a> { } if !bounds.iter().any(|b| matches!(b, GenericBound::Trait(..))) { - self.err_handler().emit_err(errors::AtLeastOneTrait { span: ty.span }); + self.dcx().emit_err(errors::AtLeastOneTrait { span: ty.span }); } } _ => {} @@ -697,7 +697,7 @@ impl<'a> AstValidator<'a> { /// Checks that generic parameters are in the correct order, /// which is lifetimes, then types and then consts. (`<'a, T, const N: usize>`) fn validate_generic_param_order( - handler: &rustc_errors::Handler, + dcx: &rustc_errors::DiagCtxt, generics: &[GenericParam], span: Span, ) { @@ -760,7 +760,7 @@ fn validate_generic_param_order( ordered_params += ">"; for (param_ord, (max_param, spans)) in &out_of_order { - handler.emit_err(errors::OutOfOrderParams { + dcx.emit_err(errors::OutOfOrderParams { spans: spans.clone(), sugg_span: span, param_ord, @@ -823,7 +823,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { errors::VisibilityNotPermittedNote::TraitImpl, ); if let TyKind::Err = self_ty.kind { - this.err_handler().emit_err(errors::ObsoleteAuto { span: item.span }); + this.dcx().emit_err(errors::ObsoleteAuto { span: item.span }); } if let (&Unsafe::Yes(span), &ImplPolarity::Negative(sp)) = (unsafety, polarity) { @@ -837,7 +837,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { this.visit_vis(&item.vis); this.visit_ident(item.ident); let disallowed = matches!(constness, Const::No) - .then(|| DisallowTildeConstContext::Impl(item.span)); + .then(|| DisallowTildeConstContext::TraitImpl(item.span)); this.with_tilde_const(disallowed, |this| this.visit_generics(generics)); this.visit_trait_ref(t); this.visit_ty(self_ty); @@ -871,7 +871,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { errors::VisibilityNotPermittedNote::IndividualImplItems, ); if let &Unsafe::Yes(span) = unsafety { - self.err_handler().emit_err(errors::InherentImplCannotUnsafe { + self.dcx().emit_err(errors::InherentImplCannotUnsafe { span: self_ty.span, annotation_span: span, annotation: "unsafe", @@ -879,18 +879,20 @@ impl<'a> Visitor<'a> for AstValidator<'a> { }); } if let &ImplPolarity::Negative(span) = polarity { - self.err_handler().emit_err(error(span, "negative", false)); + self.dcx().emit_err(error(span, "negative", false)); } if let &Defaultness::Default(def_span) = defaultness { - self.err_handler().emit_err(error(def_span, "`default`", true)); + self.dcx().emit_err(error(def_span, "`default`", true)); } if let &Const::Yes(span) = constness { - self.err_handler().emit_err(error(span, "`const`", true)); + self.dcx().emit_err(error(span, "`const`", true)); } self.visit_vis(&item.vis); self.visit_ident(item.ident); - self.with_tilde_const(None, |this| this.visit_generics(generics)); + self.with_tilde_const(Some(DisallowTildeConstContext::Impl(item.span)), |this| { + this.visit_generics(generics) + }); self.visit_ty(self_ty); walk_list!(self, visit_assoc_item, items, AssocCtxt::Impl); walk_list!(self, visit_attribute, &item.attrs); @@ -937,7 +939,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { errors::VisibilityNotPermittedNote::IndividualForeignItems, ); if let &Unsafe::Yes(span) = unsafety { - self.err_handler().emit_err(errors::UnsafeItem { span, kind: "extern block" }); + self.dcx().emit_err(errors::UnsafeItem { span, kind: "extern block" }); } if abi.is_none() { self.maybe_lint_missing_abi(item.span, item.id); @@ -988,7 +990,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } ItemKind::Mod(unsafety, mod_kind) => { if let &Unsafe::Yes(span) = unsafety { - self.err_handler().emit_err(errors::UnsafeItem { span, kind: "module" }); + self.dcx().emit_err(errors::UnsafeItem { span, kind: "module" }); } // Ensure that `path` attributes on modules are recorded as used (cf. issue #35584). if !matches!(mod_kind, ModKind::Loaded(_, Inline::Yes, _)) @@ -998,7 +1000,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } } ItemKind::Struct(vdata, generics) => match vdata { - VariantData::Struct(fields, ..) => { + VariantData::Struct { fields, .. } => { self.visit_vis(&item.vis); self.visit_ident(item.ident); self.visit_generics(generics); @@ -1011,10 +1013,10 @@ impl<'a> Visitor<'a> for AstValidator<'a> { }, ItemKind::Union(vdata, generics) => { if vdata.fields().is_empty() { - self.err_handler().emit_err(errors::FieldlessUnion { span: item.span }); + self.dcx().emit_err(errors::FieldlessUnion { span: item.span }); } match vdata { - VariantData::Struct(fields, ..) => { + VariantData::Struct { fields, .. } => { self.visit_vis(&item.vis); self.visit_ident(item.ident); self.visit_generics(generics); @@ -1026,12 +1028,14 @@ impl<'a> Visitor<'a> for AstValidator<'a> { _ => {} } } - ItemKind::Const(box ConstItem { defaultness, expr: None, .. }) => { + ItemKind::Const(box ConstItem { defaultness, expr, .. }) => { self.check_defaultness(item.span, *defaultness); - self.session.emit_err(errors::ConstWithoutBody { - span: item.span, - replace_span: self.ending_semi_or_hi(item.span), - }); + if expr.is_none() { + self.session.emit_err(errors::ConstWithoutBody { + span: item.span, + replace_span: self.ending_semi_or_hi(item.span), + }); + } } ItemKind::Static(box StaticItem { expr: None, .. }) => { self.session.emit_err(errors::StaticWithoutBody { @@ -1053,10 +1057,10 @@ impl<'a> Visitor<'a> for AstValidator<'a> { if self.features.lazy_type_alias { if let Err(err) = self.check_type_alias_where_clause_location(ty_alias) { - self.err_handler().emit_err(err); + self.dcx().emit_err(err); } } else if where_clauses.1.0 { - self.err_handler().emit_err(errors::WhereClauseAfterTypeAlias { + self.dcx().emit_err(errors::WhereClauseAfterTypeAlias { span: where_clauses.1.1, help: self.session.is_nightly_build().then_some(()), }); @@ -1141,14 +1145,14 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } GenericParamKind::Type { .. } | GenericParamKind::Const { .. } => { if let Some(span) = prev_param_default { - self.err_handler().emit_err(errors::GenericDefaultTrailing { span }); + self.dcx().emit_err(errors::GenericDefaultTrailing { span }); break; } } } } - validate_generic_param_order(self.err_handler(), &generics.params, generics.span); + validate_generic_param_order(self.dcx(), &generics.params, generics.span); for predicate in &generics.where_clause.predicates { if let WherePredicate::EqPredicate(predicate) = predicate { @@ -1169,7 +1173,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { match bound { GenericBound::Trait(t, _) => { if !t.bound_generic_params.is_empty() { - self.err_handler() + self.dcx() .emit_err(errors::NestedLifetimes { span: t.span }); } } @@ -1192,18 +1196,18 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } fn visit_param_bound(&mut self, bound: &'a GenericBound, ctxt: BoundKind) { - if let GenericBound::Trait(poly, modify) = bound { - match (ctxt, modify) { - (BoundKind::SuperTraits, TraitBoundModifier::Maybe) => { - self.err_handler().emit_err(errors::OptionalTraitSupertrait { + if let GenericBound::Trait(poly, modifiers) = bound { + match (ctxt, modifiers.constness, modifiers.polarity) { + (BoundKind::SuperTraits, BoundConstness::Never, BoundPolarity::Maybe(_)) => { + self.dcx().emit_err(errors::OptionalTraitSupertrait { span: poly.span, path_str: pprust::path_to_string(&poly.trait_ref.path), }); } - (BoundKind::TraitObject, TraitBoundModifier::Maybe) => { - self.err_handler().emit_err(errors::OptionalTraitObject { span: poly.span }); + (BoundKind::TraitObject, BoundConstness::Never, BoundPolarity::Maybe(_)) => { + self.dcx().emit_err(errors::OptionalTraitObject { span: poly.span }); } - (_, &TraitBoundModifier::MaybeConst(span)) + (_, BoundConstness::Maybe(span), BoundPolarity::Positive) if let Some(reason) = &self.disallow_tilde_const => { let reason = match reason { @@ -1216,7 +1220,12 @@ impl<'a> Visitor<'a> for AstValidator<'a> { &DisallowTildeConstContext::Trait(span) => { errors::TildeConstReason::Trait { span } } + &DisallowTildeConstContext::TraitImpl(span) => { + errors::TildeConstReason::TraitImpl { span } + } &DisallowTildeConstContext::Impl(span) => { + // FIXME(effects): Consider providing a help message or even a structured + // suggestion for moving such bounds to the assoc const fns if available. errors::TildeConstReason::Impl { span } } DisallowTildeConstContext::TraitObject => { @@ -1224,18 +1233,17 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } DisallowTildeConstContext::Item => errors::TildeConstReason::Item, }; - self.err_handler().emit_err(errors::TildeConstDisallowed { span, reason }); - } - (_, TraitBoundModifier::MaybeConstMaybe) => { - self.err_handler().emit_err(errors::OptionalConstExclusive { - span: bound.span(), - modifier: "?", - }); + self.dcx().emit_err(errors::TildeConstDisallowed { span, reason }); } - (_, TraitBoundModifier::MaybeConstNegative) => { - self.err_handler().emit_err(errors::OptionalConstExclusive { + ( + _, + BoundConstness::Maybe(_), + BoundPolarity::Maybe(_) | BoundPolarity::Negative(_), + ) => { + self.dcx().emit_err(errors::IncompatibleTraitBoundModifiers { span: bound.span(), - modifier: "!", + left: modifiers.constness.as_str(), + right: modifiers.polarity.as_str(), }); } _ => {} @@ -1243,13 +1251,14 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } // Negative trait bounds are not allowed to have associated constraints - if let GenericBound::Trait(trait_ref, TraitBoundModifier::Negative) = bound + if let GenericBound::Trait(trait_ref, modifiers) = bound + && let BoundPolarity::Negative(_) = modifiers.polarity && let Some(segment) = trait_ref.trait_ref.path.segments.last() && let Some(ast::GenericArgs::AngleBracketed(args)) = segment.args.as_deref() { for arg in &args.args { if let ast::AngleBracketedArg::Constraint(constraint) = arg { - self.err_handler() + self.dcx() .emit_err(errors::ConstraintOnNegativeBound { span: constraint.span }); } } @@ -1281,7 +1290,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { | CoroutineKind::AsyncGen { span: aspan, .. } => aspan, }; // FIXME(gen_blocks): Report a different error for `const gen` - self.err_handler().emit_err(errors::ConstAndAsync { + self.dcx().emit_err(errors::ConstAndAsync { spans: vec![cspan, aspan], cspan, aspan, @@ -1321,10 +1330,8 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } } else { match ctxt { - FnCtxt::Foreign => { - self.err_handler().emit_err(errors::PatternInForeign { span }) - } - _ => self.err_handler().emit_err(errors::PatternInBodiless { span }), + FnCtxt::Foreign => self.dcx().emit_err(errors::PatternInForeign { span }), + _ => self.dcx().emit_err(errors::PatternInBodiless { span }), }; } }); @@ -1487,7 +1494,8 @@ fn deny_equality_constraints( for param in &generics.params { if param.ident == potential_param.ident { for bound in ¶m.bounds { - if let ast::GenericBound::Trait(trait_ref, TraitBoundModifier::None) = bound + if let ast::GenericBound::Trait(trait_ref, TraitBoundModifiers::NONE) = + bound { if let [trait_segment] = &trait_ref.trait_ref.path.segments[..] { let assoc = pprust::path_to_string(&ast::Path::from_ident( @@ -1523,7 +1531,7 @@ fn deny_equality_constraints( } } } - this.err_handler().emit_err(err); + this.dcx().emit_err(err); } pub fn check_crate( diff --git a/compiler/rustc_ast_passes/src/errors.rs b/compiler/rustc_ast_passes/src/errors.rs index 928bf19759a..a5b842b320e 100644 --- a/compiler/rustc_ast_passes/src/errors.rs +++ b/compiler/rustc_ast_passes/src/errors.rs @@ -52,8 +52,8 @@ pub struct TraitFnConst { } #[derive(Diagnostic)] -#[diag(ast_passes_forbidden_lifetime_bound)] -pub struct ForbiddenLifetimeBound { +#[diag(ast_passes_forbidden_bound)] +pub struct ForbiddenBound { #[primary_span] pub spans: Vec<Span>, } @@ -563,6 +563,11 @@ pub enum TildeConstReason { #[primary_span] span: Span, }, + #[note(ast_passes_trait_impl)] + TraitImpl { + #[primary_span] + span: Span, + }, #[note(ast_passes_impl)] Impl { #[primary_span] @@ -575,11 +580,12 @@ pub enum TildeConstReason { } #[derive(Diagnostic)] -#[diag(ast_passes_optional_const_exclusive)] -pub struct OptionalConstExclusive { +#[diag(ast_passes_incompatible_trait_bound_modifiers)] +pub struct IncompatibleTraitBoundModifiers { #[primary_span] pub span: Span, - pub modifier: &'static str, + pub left: &'static str, + pub right: &'static str, } #[derive(Diagnostic)] diff --git a/compiler/rustc_ast_passes/src/feature_gate.rs b/compiler/rustc_ast_passes/src/feature_gate.rs index ac55c6cabd0..b20a0b9461f 100644 --- a/compiler/rustc_ast_passes/src/feature_gate.rs +++ b/compiler/rustc_ast_passes/src/feature_gate.rs @@ -102,7 +102,7 @@ impl<'a> PostExpansionVisitor<'a> { } Err(abi::AbiDisabled::Unrecognized) => { if self.sess.opts.pretty.map_or(true, |ppm| ppm.needs_hir()) { - self.sess.diagnostic().span_delayed_bug( + self.sess.dcx().span_delayed_bug( span, format!( "unrecognized ABI not caught in lowering: {}", @@ -152,8 +152,8 @@ impl<'a> PostExpansionVisitor<'a> { } fn check_late_bound_lifetime_defs(&self, params: &[ast::GenericParam]) { - // Check only lifetime parameters are present and that the lifetime - // parameters that are present have no bounds. + // Check only lifetime parameters are present and that the + // generic parameters that are present have no bounds. let non_lt_param_spans = params.iter().filter_map(|param| match param.kind { ast::GenericParamKind::Lifetime { .. } => None, _ => Some(param.ident.span), @@ -164,10 +164,11 @@ impl<'a> PostExpansionVisitor<'a> { non_lt_param_spans, crate::fluent_generated::ast_passes_forbidden_non_lifetime_param ); + for param in params { if !param.bounds.is_empty() { let spans: Vec<_> = param.bounds.iter().map(|b| b.span()).collect(); - self.sess.emit_err(errors::ForbiddenLifetimeBound { spans }); + self.sess.emit_err(errors::ForbiddenBound { spans }); } } } @@ -526,6 +527,7 @@ pub fn check_crate(krate: &ast::Crate, sess: &Session, features: &Features) { "async closures are unstable", "to use an async block, remove the `||`: `async {`" ); + gate_all!(async_for_loop, "`for await` loops are experimental"); gate_all!( closure_lifetime_binder, "`for<...>` binders for closures are experimental", @@ -654,7 +656,7 @@ fn maybe_stage_features(sess: &Session, features: &Features, krate: &ast::Crate) if all_stable { err.sugg = Some(attr.span); } - sess.diagnostic().emit_err(err); + sess.dcx().emit_err(err); } } } diff --git a/compiler/rustc_ast_passes/src/show_span.rs b/compiler/rustc_ast_passes/src/show_span.rs index 280cf3284c3..9882f1d23ce 100644 --- a/compiler/rustc_ast_passes/src/show_span.rs +++ b/compiler/rustc_ast_passes/src/show_span.rs @@ -31,37 +31,37 @@ impl FromStr for Mode { } struct ShowSpanVisitor<'a> { - span_diagnostic: &'a rustc_errors::Handler, + dcx: &'a rustc_errors::DiagCtxt, mode: Mode, } impl<'a> Visitor<'a> for ShowSpanVisitor<'a> { fn visit_expr(&mut self, e: &'a ast::Expr) { if let Mode::Expression = self.mode { - self.span_diagnostic.emit_warning(errors::ShowSpan { span: e.span, msg: "expression" }); + self.dcx.emit_warning(errors::ShowSpan { span: e.span, msg: "expression" }); } visit::walk_expr(self, e); } fn visit_pat(&mut self, p: &'a ast::Pat) { if let Mode::Pattern = self.mode { - self.span_diagnostic.emit_warning(errors::ShowSpan { span: p.span, msg: "pattern" }); + self.dcx.emit_warning(errors::ShowSpan { span: p.span, msg: "pattern" }); } visit::walk_pat(self, p); } fn visit_ty(&mut self, t: &'a ast::Ty) { if let Mode::Type = self.mode { - self.span_diagnostic.emit_warning(errors::ShowSpan { span: t.span, msg: "type" }); + self.dcx.emit_warning(errors::ShowSpan { span: t.span, msg: "type" }); } visit::walk_ty(self, t); } } -pub fn run(span_diagnostic: &rustc_errors::Handler, mode: &str, krate: &ast::Crate) { +pub fn run(dcx: &rustc_errors::DiagCtxt, mode: &str, krate: &ast::Crate) { let Ok(mode) = mode.parse() else { return; }; - let mut v = ShowSpanVisitor { span_diagnostic, mode }; + let mut v = ShowSpanVisitor { dcx, mode }; visit::walk_crate(&mut v, krate); } diff --git a/compiler/rustc_ast_pretty/src/lib.rs b/compiler/rustc_ast_pretty/src/lib.rs index 670f2a45835..100b2988982 100644 --- a/compiler/rustc_ast_pretty/src/lib.rs +++ b/compiler/rustc_ast_pretty/src/lib.rs @@ -4,6 +4,7 @@ #![deny(rustc::untranslatable_diagnostic)] #![deny(rustc::diagnostic_outside_of_impl)] #![feature(box_patterns)] +#![feature(let_chains)] #![recursion_limit = "256"] mod helpers; diff --git a/compiler/rustc_ast_pretty/src/pprust/state.rs b/compiler/rustc_ast_pretty/src/pprust/state.rs index 4a2a693862b..12d37cf5a7a 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state.rs @@ -17,7 +17,7 @@ use rustc_ast::util::comments::{gather_comments, Comment, CommentStyle}; use rustc_ast::util::parser; use rustc_ast::{self as ast, AttrArgs, AttrArgsEq, BlockCheckMode, PatKind}; use rustc_ast::{attr, BindingAnnotation, ByRef, DelimArgs, RangeEnd, RangeSyntax, Term}; -use rustc_ast::{GenericArg, GenericBound, SelfKind, TraitBoundModifier}; +use rustc_ast::{GenericArg, GenericBound, SelfKind}; use rustc_ast::{InlineAsmOperand, InlineAsmRegOrRegClass}; use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece}; use rustc_span::edition::Edition; @@ -1427,7 +1427,7 @@ impl<'a> State<'a> { } self.nbsp(); self.word("{"); - let empty = fields.is_empty() && !etc; + let empty = fields.is_empty() && *etc == ast::PatFieldsRest::None; if !empty { self.space(); } @@ -1445,7 +1445,7 @@ impl<'a> State<'a> { }, |f| f.pat.span, ); - if *etc { + if *etc == ast::PatFieldsRest::Rest { if !fields.is_empty() { self.word_space(","); } @@ -1559,26 +1559,20 @@ impl<'a> State<'a> { match bound { GenericBound::Trait(tref, modifier) => { - match modifier { - TraitBoundModifier::None => {} - TraitBoundModifier::Negative => { - self.word("!"); + match modifier.constness { + ast::BoundConstness::Never => {} + ast::BoundConstness::Maybe(_) => { + self.word_space(modifier.constness.as_str()); } - TraitBoundModifier::Maybe => { - self.word("?"); - } - TraitBoundModifier::MaybeConst(_) => { - self.word_space("~const"); - } - TraitBoundModifier::MaybeConstNegative => { - self.word_space("~const"); - self.word("!"); - } - TraitBoundModifier::MaybeConstMaybe => { - self.word_space("~const"); - self.word("?"); + } + + match modifier.polarity { + ast::BoundPolarity::Positive => {} + ast::BoundPolarity::Negative(_) | ast::BoundPolarity::Maybe(_) => { + self.word(modifier.polarity.as_str()); } } + self.print_poly_trait_ref(tref); } GenericBound::Outlives(lt) => self.print_lifetime(*lt), @@ -1597,7 +1591,9 @@ impl<'a> State<'a> { } match bound { ast::GenericBound::Outlives(lt) => self.print_lifetime(*lt), - _ => panic!(), + _ => { + panic!("expected a lifetime bound, found a trait bound") + } } } } diff --git a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs index f5ffcddb83d..f868beec812 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs @@ -1,5 +1,6 @@ use crate::pp::Breaks::Inconsistent; use crate::pprust::state::{AnnNode, PrintState, State, INDENT_UNIT}; +use ast::ForLoopKind; use itertools::{Itertools, Position}; use rustc_ast::ptr::P; use rustc_ast::token; @@ -418,20 +419,23 @@ impl<'a> State<'a> { self.space(); self.print_block_with_attrs(blk, attrs); } - ast::ExprKind::ForLoop(pat, iter, blk, opt_label) => { - if let Some(label) = opt_label { + ast::ExprKind::ForLoop { pat, iter, body, label, kind } => { + if let Some(label) = label { self.print_ident(label.ident); self.word_space(":"); } self.cbox(0); self.ibox(0); self.word_nbsp("for"); + if kind == &ForLoopKind::ForAwait { + self.word_nbsp("await"); + } self.print_pat(pat); self.space(); self.word_space("in"); self.print_expr_as_cond(iter); self.space(); - self.print_block_with_attrs(blk, attrs); + self.print_block_with_attrs(body, attrs); } ast::ExprKind::Loop(blk, opt_label, _) => { if let Some(label) = opt_label { diff --git a/compiler/rustc_ast_pretty/src/pprust/state/item.rs b/compiler/rustc_ast_pretty/src/pprust/state/item.rs index ea5d22a3448..43561a1c020 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state/item.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state/item.rs @@ -5,7 +5,6 @@ use crate::pprust::state::{AnnNode, PrintState, State, INDENT_UNIT}; use ast::StaticItem; use itertools::{Itertools, Position}; use rustc_ast as ast; -use rustc_ast::GenericBound; use rustc_ast::ModKind; use rustc_span::symbol::Ident; @@ -338,19 +337,9 @@ impl<'a> State<'a> { self.word_nbsp("trait"); self.print_ident(item.ident); self.print_generic_params(&generics.params); - let mut real_bounds = Vec::with_capacity(bounds.len()); - for b in bounds.iter() { - if let GenericBound::Trait(ptr, ast::TraitBoundModifier::Maybe) = b { - self.space(); - self.word_space("for ?"); - self.print_trait_ref(&ptr.trait_ref); - } else { - real_bounds.push(b.clone()); - } - } - if !real_bounds.is_empty() { + if !bounds.is_empty() { self.word_nbsp(":"); - self.print_type_bounds(&real_bounds); + self.print_type_bounds(bounds); } self.print_where_clause(&generics.where_clause); self.word(" "); @@ -500,7 +489,7 @@ impl<'a> State<'a> { self.end(); self.end(); // Close the outer-box. } - ast::VariantData::Struct(fields, ..) => { + ast::VariantData::Struct { fields, .. } => { self.print_where_clause(&generics.where_clause); self.print_record_struct_body(fields, span); } diff --git a/compiler/rustc_attr/src/builtin.rs b/compiler/rustc_attr/src/builtin.rs index a6930fe0a17..0959e8d3043 100644 --- a/compiler/rustc_attr/src/builtin.rs +++ b/compiler/rustc_attr/src/builtin.rs @@ -945,7 +945,7 @@ pub fn parse_repr_attr(sess: &Session, attr: &Attribute) -> Vec<ReprAttr> { assert!(attr.has_name(sym::repr), "expected `#[repr(..)]`, found: {attr:?}"); use ReprAttr::*; let mut acc = Vec::new(); - let diagnostic = sess.diagnostic(); + let diagnostic = sess.dcx(); if let Some(items) = attr.meta_item_list() { for item in items { diff --git a/compiler/rustc_attr/src/session_diagnostics.rs b/compiler/rustc_attr/src/session_diagnostics.rs index ca9bbd28b95..fd2b0866867 100644 --- a/compiler/rustc_attr/src/session_diagnostics.rs +++ b/compiler/rustc_attr/src/session_diagnostics.rs @@ -2,7 +2,8 @@ use std::num::IntErrorKind; use rustc_ast as ast; use rustc_errors::{ - error_code, Applicability, DiagnosticBuilder, ErrorGuaranteed, Handler, IntoDiagnostic, + error_code, Applicability, DiagCtxt, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, + Level, }; use rustc_macros::Diagnostic; use rustc_span::{Span, Symbol}; @@ -50,14 +51,12 @@ pub(crate) struct UnknownMetaItem<'a> { } // Manual implementation to be able to format `expected` items correctly. -impl<'a> IntoDiagnostic<'a> for UnknownMetaItem<'_> { - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> { +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for UnknownMetaItem<'_> { + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { let expected = self.expected.iter().map(|name| format!("`{name}`")).collect::<Vec<_>>(); - let mut diag = handler.struct_span_err_with_code( - self.span, - fluent::attr_unknown_meta_item, - error_code!(E0541), - ); + let mut diag = DiagnosticBuilder::new(dcx, level, fluent::attr_unknown_meta_item); + diag.set_span(self.span); + diag.code(error_code!(E0541)); diag.set_arg("item", self.item); diag.set_arg("expected", expected.join(", ")); diag.span_label(self.span, fluent::attr_label); @@ -200,10 +199,11 @@ pub(crate) struct UnsupportedLiteral { pub start_point_span: Span, } -impl<'a> IntoDiagnostic<'a> for UnsupportedLiteral { - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> { - let mut diag = handler.struct_span_err_with_code( - self.span, +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for UnsupportedLiteral { + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { + let mut diag = DiagnosticBuilder::new( + dcx, + level, match self.reason { UnsupportedLiteralReason::Generic => fluent::attr_unsupported_literal_generic, UnsupportedLiteralReason::CfgString => fluent::attr_unsupported_literal_cfg_string, @@ -214,8 +214,9 @@ impl<'a> IntoDiagnostic<'a> for UnsupportedLiteral { fluent::attr_unsupported_literal_deprecated_kv_pair } }, - error_code!(E0565), ); + diag.set_span(self.span); + diag.code(error_code!(E0565)); if self.is_bytestr { diag.span_suggestion( self.start_point_span, diff --git a/compiler/rustc_borrowck/src/borrowck_errors.rs b/compiler/rustc_borrowck/src/borrowck_errors.rs index 6731ef12306..e527a91eb6f 100644 --- a/compiler/rustc_borrowck/src/borrowck_errors.rs +++ b/compiler/rustc_borrowck/src/borrowck_errors.rs @@ -1,5 +1,5 @@ use rustc_errors::{ - struct_span_err, DiagnosticBuilder, DiagnosticId, DiagnosticMessage, ErrorGuaranteed, MultiSpan, + struct_span_err, DiagnosticBuilder, DiagnosticId, DiagnosticMessage, MultiSpan, }; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_span::Span; @@ -12,7 +12,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { place: &str, borrow_place: &str, value_place: &str, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { self.infcx.tcx.sess.create_err(crate::session_diagnostics::MoveBorrow { place, span, @@ -28,7 +28,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { desc: &str, borrow_span: Span, borrow_desc: &str, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let mut err = struct_span_err!( self, span, @@ -50,7 +50,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { old_loan_span: Span, old_opt_via: &str, old_load_end_span: Option<Span>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let via = |msg: &str| if msg.is_empty() { "".to_string() } else { format!(" (via {msg})") }; let mut err = struct_span_err!( self, @@ -97,7 +97,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { desc: &str, old_loan_span: Span, old_load_end_span: Option<Span>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let mut err = struct_span_err!( self, new_loan_span, @@ -130,7 +130,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { noun_old: &str, old_opt_via: &str, previous_end_span: Option<Span>, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let mut err = struct_span_err!( self, new_loan_span, @@ -162,7 +162,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { old_opt_via: &str, previous_end_span: Option<Span>, second_borrow_desc: &str, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let mut err = struct_span_err!( self, new_loan_span, @@ -194,7 +194,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { kind_old: &str, msg_old: &str, old_load_end_span: Option<Span>, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let via = |msg: &str| if msg.is_empty() { "".to_string() } else { format!(" (via {msg})") }; let mut err = struct_span_err!( self, @@ -235,7 +235,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { span: Span, borrow_span: Span, desc: &str, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let mut err = struct_span_err!( self, span, @@ -254,16 +254,12 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { span: Span, desc: &str, is_arg: bool, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let msg = if is_arg { "to immutable argument" } else { "twice to immutable variable" }; struct_span_err!(self, span, E0384, "cannot assign {} {}", msg, desc) } - pub(crate) fn cannot_assign( - &self, - span: Span, - desc: &str, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + pub(crate) fn cannot_assign(&self, span: Span, desc: &str) -> DiagnosticBuilder<'tcx> { struct_span_err!(self, span, E0594, "cannot assign to {}", desc) } @@ -271,7 +267,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { &self, move_from_span: Span, move_from_desc: &str, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { struct_span_err!(self, move_from_span, E0507, "cannot move out of {}", move_from_desc) } @@ -283,7 +279,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { move_from_span: Span, ty: Ty<'_>, is_index: Option<bool>, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let type_name = match (&ty.kind(), is_index) { (&ty::Array(_, _), Some(true)) | (&ty::Array(_, _), None) => "array", (&ty::Slice(_), _) => "slice", @@ -305,7 +301,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { &self, move_from_span: Span, container_ty: Ty<'_>, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let mut err = struct_span_err!( self, move_from_span, @@ -323,7 +319,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { verb: &str, optional_adverb_for_moved: &str, moved_path: Option<String>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let moved_path = moved_path.map(|mp| format!(": `{mp}`")).unwrap_or_default(); struct_span_err!( @@ -342,7 +338,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { span: Span, path: &str, reason: &str, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { struct_span_err!(self, span, E0596, "cannot borrow {} as mutable{}", path, reason,) } @@ -353,7 +349,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { immutable_place: &str, immutable_section: &str, action: &str, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let mut err = struct_span_err!( self, mutate_span, @@ -372,7 +368,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { &self, span: Span, yield_span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let coroutine_kind = self.body.coroutine.as_ref().unwrap().coroutine_kind; let mut err = struct_span_err!( self, @@ -387,7 +383,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { pub(crate) fn cannot_borrow_across_destructor( &self, borrow_span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { struct_span_err!( self, borrow_span, @@ -400,7 +396,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { &self, span: Span, path: &str, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { struct_span_err!(self, span, E0597, "{} does not live long enough", path,) } @@ -410,7 +406,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { return_kind: &str, reference_desc: &str, path_desc: &str, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let mut err = struct_span_err!( self, span, @@ -436,7 +432,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { borrowed_path: &str, capture_span: Span, scope: &str, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let mut err = struct_span_err!( self, closure_span, @@ -452,14 +448,14 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { pub(crate) fn thread_local_value_does_not_live_long_enough( &self, span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { struct_span_err!(self, span, E0712, "thread-local variable borrowed past end of function",) } pub(crate) fn temporary_value_borrowed_for_too_long( &self, span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { struct_span_err!(self, span, E0716, "temporary value dropped while borrowed",) } @@ -470,7 +466,7 @@ impl<'cx, 'tcx> crate::MirBorrowckCtxt<'cx, 'tcx> { sp: S, msg: impl Into<DiagnosticMessage>, code: DiagnosticId, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { self.infcx.tcx.sess.struct_span_err_with_code(sp, msg, code) } } @@ -479,7 +475,7 @@ pub(crate) fn borrowed_data_escapes_closure<'tcx>( tcx: TyCtxt<'tcx>, escape_span: Span, escapes_from: &str, -) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { +) -> DiagnosticBuilder<'tcx> { struct_span_err!( tcx.sess, escape_span, diff --git a/compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs index 924e68fa91d..e6881316a8f 100644 --- a/compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/bound_region_errors.rs @@ -1,7 +1,7 @@ #![deny(rustc::untranslatable_diagnostic)] #![deny(rustc::diagnostic_outside_of_impl)] -use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed}; +use rustc_errors::DiagnosticBuilder; use rustc_infer::infer::canonical::Canonical; use rustc_infer::infer::error_reporting::nice_region_error::NiceRegionError; use rustc_infer::infer::region_constraints::Constraint; @@ -147,11 +147,7 @@ impl<'tcx> ToUniverseInfo<'tcx> for ! { trait TypeOpInfo<'tcx> { /// Returns an error to be reported if rerunning the type op fails to /// recover the error's cause. - fn fallback_error( - &self, - tcx: TyCtxt<'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; + fn fallback_error(&self, tcx: TyCtxt<'tcx>, span: Span) -> DiagnosticBuilder<'tcx>; fn base_universe(&self) -> ty::UniverseIndex; @@ -161,7 +157,7 @@ trait TypeOpInfo<'tcx> { cause: ObligationCause<'tcx>, placeholder_region: ty::Region<'tcx>, error_region: Option<ty::Region<'tcx>>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>>; + ) -> Option<DiagnosticBuilder<'tcx>>; #[instrument(level = "debug", skip(self, mbcx))] fn report_error( @@ -224,11 +220,7 @@ struct PredicateQuery<'tcx> { } impl<'tcx> TypeOpInfo<'tcx> for PredicateQuery<'tcx> { - fn fallback_error( - &self, - tcx: TyCtxt<'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn fallback_error(&self, tcx: TyCtxt<'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { tcx.sess.create_err(HigherRankedLifetimeError { cause: Some(HigherRankedErrorCause::CouldNotProve { predicate: self.canonical_query.value.value.predicate.to_string(), @@ -247,7 +239,7 @@ impl<'tcx> TypeOpInfo<'tcx> for PredicateQuery<'tcx> { cause: ObligationCause<'tcx>, placeholder_region: ty::Region<'tcx>, error_region: Option<ty::Region<'tcx>>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { let (infcx, key, _) = mbcx.infcx.tcx.infer_ctxt().build_with_canonical(cause.span, &self.canonical_query); let ocx = ObligationCtxt::new(&infcx); @@ -265,11 +257,7 @@ impl<'tcx, T> TypeOpInfo<'tcx> for NormalizeQuery<'tcx, T> where T: Copy + fmt::Display + TypeFoldable<TyCtxt<'tcx>> + 'tcx, { - fn fallback_error( - &self, - tcx: TyCtxt<'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn fallback_error(&self, tcx: TyCtxt<'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { tcx.sess.create_err(HigherRankedLifetimeError { cause: Some(HigherRankedErrorCause::CouldNotNormalize { value: self.canonical_query.value.value.value.to_string(), @@ -288,7 +276,7 @@ where cause: ObligationCause<'tcx>, placeholder_region: ty::Region<'tcx>, error_region: Option<ty::Region<'tcx>>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { let (infcx, key, _) = mbcx.infcx.tcx.infer_ctxt().build_with_canonical(cause.span, &self.canonical_query); let ocx = ObligationCtxt::new(&infcx); @@ -312,11 +300,7 @@ struct AscribeUserTypeQuery<'tcx> { } impl<'tcx> TypeOpInfo<'tcx> for AscribeUserTypeQuery<'tcx> { - fn fallback_error( - &self, - tcx: TyCtxt<'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn fallback_error(&self, tcx: TyCtxt<'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { // FIXME: This error message isn't great, but it doesn't show up in the existing UI tests, // and is only the fallback when the nice error fails. Consider improving this some more. tcx.sess.create_err(HigherRankedLifetimeError { cause: None, span }) @@ -332,7 +316,7 @@ impl<'tcx> TypeOpInfo<'tcx> for AscribeUserTypeQuery<'tcx> { cause: ObligationCause<'tcx>, placeholder_region: ty::Region<'tcx>, error_region: Option<ty::Region<'tcx>>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { let (infcx, key, _) = mbcx.infcx.tcx.infer_ctxt().build_with_canonical(cause.span, &self.canonical_query); let ocx = ObligationCtxt::new(&infcx); @@ -342,11 +326,7 @@ impl<'tcx> TypeOpInfo<'tcx> for AscribeUserTypeQuery<'tcx> { } impl<'tcx> TypeOpInfo<'tcx> for crate::type_check::InstantiateOpaqueType<'tcx> { - fn fallback_error( - &self, - tcx: TyCtxt<'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn fallback_error(&self, tcx: TyCtxt<'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { // FIXME: This error message isn't great, but it doesn't show up in the existing UI tests, // and is only the fallback when the nice error fails. Consider improving this some more. tcx.sess.create_err(HigherRankedLifetimeError { cause: None, span }) @@ -362,7 +342,7 @@ impl<'tcx> TypeOpInfo<'tcx> for crate::type_check::InstantiateOpaqueType<'tcx> { _cause: ObligationCause<'tcx>, placeholder_region: ty::Region<'tcx>, error_region: Option<ty::Region<'tcx>>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { try_extract_error_from_region_constraints( mbcx.infcx, placeholder_region, @@ -383,7 +363,7 @@ fn try_extract_error_from_fulfill_cx<'tcx>( ocx: &ObligationCtxt<'_, 'tcx>, placeholder_region: ty::Region<'tcx>, error_region: Option<ty::Region<'tcx>>, -) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { +) -> Option<DiagnosticBuilder<'tcx>> { // We generally shouldn't have errors here because the query was // already run, but there's no point using `span_delayed_bug` // when we're going to emit an error here anyway. @@ -407,14 +387,19 @@ fn try_extract_error_from_region_constraints<'tcx>( region_constraints: &RegionConstraintData<'tcx>, mut region_var_origin: impl FnMut(RegionVid) -> RegionVariableOrigin, mut universe_of_region: impl FnMut(RegionVid) -> UniverseIndex, -) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { +) -> Option<DiagnosticBuilder<'tcx>> { + let placeholder_universe = match placeholder_region.kind() { + ty::RePlaceholder(p) => p.universe, + ty::ReVar(vid) => universe_of_region(vid), + _ => ty::UniverseIndex::ROOT, + }; let matches = |a_region: Region<'tcx>, b_region: Region<'tcx>| match (a_region.kind(), b_region.kind()) { (RePlaceholder(a_p), RePlaceholder(b_p)) => a_p.bound == b_p.bound, _ => a_region == b_region, }; - let check = |constraint: &Constraint<'tcx>, cause: &SubregionOrigin<'tcx>, exact| { - match *constraint { + let mut check = + |constraint: &Constraint<'tcx>, cause: &SubregionOrigin<'tcx>, exact| match *constraint { Constraint::RegSubReg(sub, sup) if ((exact && sup == placeholder_region) || (!exact && matches(sup, placeholder_region))) @@ -422,16 +407,16 @@ fn try_extract_error_from_region_constraints<'tcx>( { Some((sub, cause.clone())) } - // FIXME: Should this check the universe of the var? Constraint::VarSubReg(vid, sup) - if ((exact && sup == placeholder_region) - || (!exact && matches(sup, placeholder_region))) => + if (exact + && sup == placeholder_region + && !universe_of_region(vid).can_name(placeholder_universe)) + || (!exact && matches(sup, placeholder_region)) => { Some((ty::Region::new_var(infcx.tcx, vid), cause.clone())) } _ => None, - } - }; + }; let mut info = region_constraints .constraints .iter() diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 2f366001d4b..1577b2896c3 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -1,13 +1,11 @@ use either::Either; -use hir::PatField; use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::FxIndexSet; -use rustc_errors::{ - struct_span_err, Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, MultiSpan, -}; +use rustc_errors::{struct_span_err, Applicability, Diagnostic, DiagnosticBuilder, MultiSpan}; use rustc_hir as hir; use rustc_hir::def::{DefKind, Res}; use rustc_hir::intravisit::{walk_block, walk_expr, Visitor}; +use rustc_hir::{CoroutineDesugaring, PatField}; use rustc_hir::{CoroutineKind, CoroutineSource, LangItem}; use rustc_infer::traits::ObligationCause; use rustc_middle::hir::nested_filter::OnlyBodies; @@ -324,7 +322,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { &mut self, mpi: MovePathIndex, move_span: Span, - err: &mut DiagnosticBuilder<'_, ErrorGuaranteed>, + err: &mut DiagnosticBuilder<'_>, in_pattern: &mut bool, move_spans: UseSpans<'_>, ) { @@ -483,7 +481,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { desired_action: InitializationRequiringAction, span: Span, use_spans: UseSpans<'tcx>, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { // We need all statements in the body where the binding was assigned to to later find all // the branching code paths where the binding *wasn't* assigned to. let inits = &self.move_data.init_path_map[mpi]; @@ -873,7 +871,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { location: Location, (place, _span): (Place<'tcx>, Span), borrow: &BorrowData<'tcx>, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let borrow_spans = self.retrieve_borrow_spans(borrow); let borrow_span = borrow_spans.args_or_use(); @@ -921,7 +919,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { (place, span): (Place<'tcx>, Span), gen_borrow_kind: BorrowKind, issued_borrow: &BorrowData<'tcx>, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let issued_spans = self.retrieve_borrow_spans(issued_borrow); let issued_span = issued_spans.args_or_use(); @@ -1138,7 +1136,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { }); } else { issued_spans.var_subdiag( - Some(self.infcx.tcx.sess.diagnostic()), + Some(self.infcx.tcx.sess.dcx()), &mut err, Some(issued_borrow.kind), |kind, var_span| { @@ -1155,7 +1153,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { ); borrow_spans.var_subdiag( - Some(self.infcx.tcx.sess.diagnostic()), + Some(self.infcx.tcx.sess.dcx()), &mut err, Some(gen_borrow_kind), |kind, var_span| { @@ -2025,7 +2023,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { drop_span: Span, borrow_spans: UseSpans<'tcx>, explanation: BorrowExplanation<'tcx>, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { debug!( "report_local_value_does_not_live_long_enough(\ {:?}, {:?}, {:?}, {:?}, {:?}\ @@ -2200,7 +2198,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { &mut self, drop_span: Span, borrow_span: Span, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { debug!( "report_thread_local_value_does_not_live_long_enough(\ {:?}, {:?}\ @@ -2228,7 +2226,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { borrow_spans: UseSpans<'tcx>, proper_span: Span, explanation: BorrowExplanation<'tcx>, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { if let BorrowExplanation::MustBeValidFor { category, span, from_closure: false, .. } = explanation { @@ -2395,7 +2393,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { return_span: Span, category: ConstraintCategory<'tcx>, opt_place_desc: Option<&String>, - ) -> Option<DiagnosticBuilder<'cx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'cx>> { let return_kind = match category { ConstraintCategory::Return(_) => "return", ConstraintCategory::Yield => "yield", @@ -2490,7 +2488,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { constraint_span: Span, captured_var: &str, scope: &str, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let tcx = self.infcx.tcx; let args_span = use_span.args_or_use(); @@ -2516,27 +2514,29 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { }; let kind = match use_span.coroutine_kind() { Some(coroutine_kind) => match coroutine_kind { - CoroutineKind::Gen(kind) => match kind { + CoroutineKind::Desugared(CoroutineDesugaring::Gen, kind) => match kind { CoroutineSource::Block => "gen block", CoroutineSource::Closure => "gen closure", CoroutineSource::Fn => { bug!("gen block/closure expected, but gen function found.") } }, - CoroutineKind::AsyncGen(kind) => match kind { + CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, kind) => match kind { CoroutineSource::Block => "async gen block", CoroutineSource::Closure => "async gen closure", CoroutineSource::Fn => { bug!("gen block/closure expected, but gen function found.") } }, - CoroutineKind::Async(async_kind) => match async_kind { - CoroutineSource::Block => "async block", - CoroutineSource::Closure => "async closure", - CoroutineSource::Fn => { - bug!("async block/closure expected, but async function found.") + CoroutineKind::Desugared(CoroutineDesugaring::Async, async_kind) => { + match async_kind { + CoroutineSource::Block => "async block", + CoroutineSource::Closure => "async closure", + CoroutineSource::Fn => { + bug!("async block/closure expected, but async function found.") + } } - }, + } CoroutineKind::Coroutine => "coroutine", }, None => "closure", @@ -2566,7 +2566,10 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { } ConstraintCategory::CallArgument(_) => { fr_name.highlight_region_name(&mut err); - if matches!(use_span.coroutine_kind(), Some(CoroutineKind::Async(_))) { + if matches!( + use_span.coroutine_kind(), + Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)) + ) { err.note( "async blocks are not executed immediately and must either take a \ reference or ownership of outside variables they use", @@ -2593,7 +2596,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { upvar_span: Span, upvar_name: Symbol, escape_span: Span, - ) -> DiagnosticBuilder<'cx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'cx> { let tcx = self.infcx.tcx; let escapes_from = tcx.def_descr(self.mir_def_id().to_def_id()); diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index 1616b5e99bf..ee321365470 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -124,7 +124,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let did = did.expect_local(); if let Some((span, hir_place)) = self.infcx.tcx.closure_kind_origin(did) { diag.eager_subdiagnostic( - self.infcx.tcx.sess.diagnostic(), + self.infcx.tcx.sess.dcx(), OnClosureNote::InvokedTwice { place_name: &ty::place_to_string_for_capture( self.infcx.tcx, @@ -146,7 +146,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let did = did.expect_local(); if let Some((span, hir_place)) = self.infcx.tcx.closure_kind_origin(did) { diag.eager_subdiagnostic( - self.infcx.tcx.sess.diagnostic(), + self.infcx.tcx.sess.dcx(), OnClosureNote::MovedTwice { place_name: &ty::place_to_string_for_capture(self.infcx.tcx, hir_place), span: *span, @@ -624,7 +624,7 @@ impl UseSpans<'_> { /// Add a subdiagnostic to the use of the captured variable, if it exists. pub(super) fn var_subdiag( self, - handler: Option<&rustc_errors::Handler>, + dcx: Option<&rustc_errors::DiagCtxt>, err: &mut Diagnostic, kind: Option<rustc_middle::mir::BorrowKind>, f: impl FnOnce(Option<CoroutineKind>, Span) -> CaptureVarCause, @@ -646,7 +646,7 @@ impl UseSpans<'_> { }); }; let diag = f(coroutine_kind, path_span); - match handler { + match dcx { Some(hd) => err.eager_subdiagnostic(hd, diag), None => err.subdiagnostic(diag), }; @@ -1150,7 +1150,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { && self.infcx.can_eq(self.param_env, ty, self_ty) { err.eager_subdiagnostic( - self.infcx.tcx.sess.diagnostic(), + self.infcx.tcx.sess.dcx(), CaptureReasonSuggest::FreshReborrow { span: move_span.shrink_to_hi(), }, diff --git a/compiler/rustc_borrowck/src/diagnostics/move_errors.rs b/compiler/rustc_borrowck/src/diagnostics/move_errors.rs index 43487b85a7b..f3b21d22c1a 100644 --- a/compiler/rustc_borrowck/src/diagnostics/move_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/move_errors.rs @@ -1,4 +1,4 @@ -use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed}; +use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder}; use rustc_middle::mir::*; use rustc_middle::ty::{self, Ty}; use rustc_mir_dataflow::move_paths::{LookupResult, MovePathIndex}; @@ -288,7 +288,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { &mut self, place: Place<'tcx>, span: Span, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'a> { let description = if place.projection.len() == 1 { format!("static item {}", self.describe_any_place(place.as_ref())) } else { @@ -310,7 +310,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { deref_target_place: Place<'tcx>, span: Span, use_spans: Option<UseSpans<'tcx>>, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'a> { // Inspect the type of the content behind the // borrow to provide feedback about why this // was a move rather than a copy. diff --git a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs index c3c1f1293d2..506933c470e 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs @@ -1,5 +1,5 @@ use hir::ExprKind; -use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed}; +use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder}; use rustc_hir as hir; use rustc_hir::intravisit::Visitor; use rustc_hir::Node; @@ -711,7 +711,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { fn construct_mut_suggestion_for_local_binding_patterns( &self, - err: &mut DiagnosticBuilder<'_, ErrorGuaranteed>, + err: &mut DiagnosticBuilder<'_>, local: Local, ) { let local_decl = &self.body.local_decls[local]; @@ -1025,7 +1025,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } } - fn suggest_using_iter_mut(&self, err: &mut DiagnosticBuilder<'_, ErrorGuaranteed>) { + fn suggest_using_iter_mut(&self, err: &mut DiagnosticBuilder<'_>) { let source = self.body.source; let hir = self.infcx.tcx.hir(); if let InstanceDef::Item(def_id) = source.instance @@ -1067,12 +1067,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } } - fn suggest_make_local_mut( - &self, - err: &mut DiagnosticBuilder<'_, ErrorGuaranteed>, - local: Local, - name: Symbol, - ) { + fn suggest_make_local_mut(&self, err: &mut DiagnosticBuilder<'_>, local: Local, name: Symbol) { let local_decl = &self.body.local_decls[local]; let (pointer_sigil, pointer_desc) = diff --git a/compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs b/compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs index 94981c45582..66275888c50 100644 --- a/compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs +++ b/compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs @@ -206,7 +206,7 @@ impl OutlivesSuggestionBuilder { // If there is exactly one suggestable constraints, then just suggest it. Otherwise, emit a // list of diagnostics. let mut diag = if suggested.len() == 1 { - mbcx.infcx.tcx.sess.diagnostic().struct_help(match suggested.last().unwrap() { + mbcx.infcx.tcx.sess.dcx().struct_help(match suggested.last().unwrap() { SuggestedConstraint::Outlives(a, bs) => { let bs: SmallVec<[String; 2]> = bs.iter().map(|r| r.to_string()).collect(); format!("add bound `{a}: {}`", bs.join(" + ")) @@ -223,7 +223,7 @@ impl OutlivesSuggestionBuilder { .infcx .tcx .sess - .diagnostic() + .dcx() .struct_help("the following changes may resolve your lifetime errors"); // Add suggestions. diff --git a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs index 759f5e910f7..f0b773b17ba 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs @@ -3,7 +3,7 @@ //! Error reporting machinery for lifetime errors. use rustc_data_structures::fx::FxIndexSet; -use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, MultiSpan}; +use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder, MultiSpan}; use rustc_hir as hir; use rustc_hir::def::Res::Def; use rustc_hir::def_id::DefId; @@ -202,7 +202,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { // and the span which bounded to the trait for adding 'static lifetime suggestion fn suggest_static_lifetime_for_gat_from_hrtb( &self, - diag: &mut DiagnosticBuilder<'_, ErrorGuaranteed>, + diag: &mut DiagnosticBuilder<'_>, lower_bound: RegionVid, ) { let mut suggestions = vec![]; @@ -573,7 +573,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { &self, errci: &ErrorConstraintInfo<'tcx>, kind: ReturnConstraint, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let ErrorConstraintInfo { outlived_fr, span, .. } = errci; let mut output_ty = self.regioncx.universal_regions().unnormalized_output_ty; @@ -645,7 +645,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { fn report_escaping_data_error( &self, errci: &ErrorConstraintInfo<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let ErrorConstraintInfo { span, category, .. } = errci; let fr_name_and_span = self.regioncx.get_var_name_and_span_for_region( @@ -744,10 +744,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { /// | ^^^^^^^^^^^^^^ function was supposed to return data with lifetime `'a` but it /// | is returning data with lifetime `'b` /// ``` - fn report_general_error( - &self, - errci: &ErrorConstraintInfo<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn report_general_error(&self, errci: &ErrorConstraintInfo<'tcx>) -> DiagnosticBuilder<'tcx> { let ErrorConstraintInfo { fr, fr_is_local, @@ -1049,7 +1046,10 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { .. }) => { let body = map.body(*body); - if !matches!(body.coroutine_kind, Some(hir::CoroutineKind::Async(..))) { + if !matches!( + body.coroutine_kind, + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _)) + ) { closure_span = Some(expr.span.shrink_to_lo()); } } diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index 8441dfaa7df..78d84f468e0 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -684,39 +684,46 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { hir::FnRetTy::Return(hir_ty) => (fn_decl.output.span(), Some(hir_ty)), }; let mir_description = match hir.body(body).coroutine_kind { - Some(hir::CoroutineKind::Async(src)) => match src { - hir::CoroutineSource::Block => " of async block", - hir::CoroutineSource::Closure => " of async closure", - hir::CoroutineSource::Fn => { - let parent_item = - tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); - let output = &parent_item - .fn_decl() - .expect("coroutine lowered from async fn should be in fn") - .output; - span = output.span(); - if let hir::FnRetTy::Return(ret) = output { - hir_ty = Some(self.get_future_inner_return_ty(*ret)); + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, src)) => { + match src { + hir::CoroutineSource::Block => " of async block", + hir::CoroutineSource::Closure => " of async closure", + hir::CoroutineSource::Fn => { + let parent_item = + tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); + let output = &parent_item + .fn_decl() + .expect("coroutine lowered from async fn should be in fn") + .output; + span = output.span(); + if let hir::FnRetTy::Return(ret) = output { + hir_ty = Some(self.get_future_inner_return_ty(*ret)); + } + " of async function" } - " of async function" } - }, - Some(hir::CoroutineKind::Gen(src)) => match src { - hir::CoroutineSource::Block => " of gen block", - hir::CoroutineSource::Closure => " of gen closure", - hir::CoroutineSource::Fn => { - let parent_item = - tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); - let output = &parent_item - .fn_decl() - .expect("coroutine lowered from gen fn should be in fn") - .output; - span = output.span(); - " of gen function" + } + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, src)) => { + match src { + hir::CoroutineSource::Block => " of gen block", + hir::CoroutineSource::Closure => " of gen closure", + hir::CoroutineSource::Fn => { + let parent_item = + tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); + let output = &parent_item + .fn_decl() + .expect("coroutine lowered from gen fn should be in fn") + .output; + span = output.span(); + " of gen function" + } } - }, + } - Some(hir::CoroutineKind::AsyncGen(src)) => match src { + Some(hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::AsyncGen, + src, + )) => match src { hir::CoroutineSource::Block => " of async gen block", hir::CoroutineSource::Closure => " of async gen closure", hir::CoroutineSource::Fn => { diff --git a/compiler/rustc_borrowck/src/lib.rs b/compiler/rustc_borrowck/src/lib.rs index 7e0e598cd9f..cf2d2ca7465 100644 --- a/compiler/rustc_borrowck/src/lib.rs +++ b/compiler/rustc_borrowck/src/lib.rs @@ -2407,8 +2407,8 @@ mod error { /// when errors in the map are being re-added to the error buffer so that errors with the /// same primary span come out in a consistent order. buffered_move_errors: - BTreeMap<Vec<MoveOutIndex>, (PlaceRef<'tcx>, DiagnosticBuilder<'tcx, ErrorGuaranteed>)>, - buffered_mut_errors: FxIndexMap<Span, (DiagnosticBuilder<'tcx, ErrorGuaranteed>, usize)>, + BTreeMap<Vec<MoveOutIndex>, (PlaceRef<'tcx>, DiagnosticBuilder<'tcx>)>, + buffered_mut_errors: FxIndexMap<Span, (DiagnosticBuilder<'tcx>, usize)>, /// Diagnostics to be reported buffer. buffered: Vec<Diagnostic>, /// Set to Some if we emit an error during borrowck @@ -2426,7 +2426,7 @@ mod error { } } - pub fn buffer_error(&mut self, t: DiagnosticBuilder<'_, ErrorGuaranteed>) { + pub fn buffer_error(&mut self, t: DiagnosticBuilder<'_>) { if let None = self.tainted_by_errors { self.tainted_by_errors = Some(self.tcx.sess.span_delayed_bug( t.span.clone_ignoring_labels(), @@ -2446,7 +2446,7 @@ mod error { } impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { - pub fn buffer_error(&mut self, t: DiagnosticBuilder<'_, ErrorGuaranteed>) { + pub fn buffer_error(&mut self, t: DiagnosticBuilder<'_>) { self.errors.buffer_error(t); } @@ -2457,7 +2457,7 @@ mod error { pub fn buffer_move_error( &mut self, move_out_indices: Vec<MoveOutIndex>, - place_and_err: (PlaceRef<'tcx>, DiagnosticBuilder<'tcx, ErrorGuaranteed>), + place_and_err: (PlaceRef<'tcx>, DiagnosticBuilder<'tcx>), ) -> bool { if let Some((_, diag)) = self.errors.buffered_move_errors.insert(move_out_indices, place_and_err) @@ -2473,16 +2473,11 @@ mod error { pub fn get_buffered_mut_error( &mut self, span: Span, - ) -> Option<(DiagnosticBuilder<'tcx, ErrorGuaranteed>, usize)> { + ) -> Option<(DiagnosticBuilder<'tcx>, usize)> { self.errors.buffered_mut_errors.remove(&span) } - pub fn buffer_mut_error( - &mut self, - span: Span, - t: DiagnosticBuilder<'tcx, ErrorGuaranteed>, - count: usize, - ) { + pub fn buffer_mut_error(&mut self, span: Span, t: DiagnosticBuilder<'tcx>, count: usize) { self.errors.buffered_mut_errors.insert(span, (t, count)); } @@ -2503,7 +2498,7 @@ mod error { self.errors.buffered.sort_by_key(|diag| diag.sort_span); for diag in self.errors.buffered.drain(..) { - self.infcx.tcx.sess.diagnostic().emit_diagnostic(diag); + self.infcx.tcx.sess.dcx().emit_diagnostic(diag); } } @@ -2517,7 +2512,7 @@ mod error { pub fn has_move_error( &self, move_out_indices: &[MoveOutIndex], - ) -> Option<&(PlaceRef<'tcx>, DiagnosticBuilder<'cx, ErrorGuaranteed>)> { + ) -> Option<&(PlaceRef<'tcx>, DiagnosticBuilder<'cx>)> { self.errors.buffered_move_errors.get(move_out_indices) } } diff --git a/compiler/rustc_borrowck/src/nll.rs b/compiler/rustc_borrowck/src/nll.rs index c88d9d81fe1..6781c6a756f 100644 --- a/compiler/rustc_borrowck/src/nll.rs +++ b/compiler/rustc_borrowck/src/nll.rs @@ -280,7 +280,7 @@ pub(super) fn dump_annotation<'tcx>( let def_span = tcx.def_span(body.source.def_id()); let mut err = if let Some(closure_region_requirements) = closure_region_requirements { - let mut err = tcx.sess.diagnostic().struct_span_note(def_span, "external requirements"); + let mut err = tcx.sess.dcx().struct_span_note(def_span, "external requirements"); regioncx.annotate(tcx, &mut err); @@ -299,7 +299,7 @@ pub(super) fn dump_annotation<'tcx>( err } else { - let mut err = tcx.sess.diagnostic().struct_span_note(def_span, "no external requirements"); + let mut err = tcx.sess.dcx().struct_span_note(def_span, "no external requirements"); regioncx.annotate(tcx, &mut err); err diff --git a/compiler/rustc_borrowck/src/region_infer/mod.rs b/compiler/rustc_borrowck/src/region_infer/mod.rs index b308cd82e54..948221e9407 100644 --- a/compiler/rustc_borrowck/src/region_infer/mod.rs +++ b/compiler/rustc_borrowck/src/region_infer/mod.rs @@ -674,13 +674,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { // eagerly. let mut outlives_requirements = infcx.tcx.is_typeck_child(mir_def_id).then(Vec::new); - self.check_type_tests( - infcx, - param_env, - body, - outlives_requirements.as_mut(), - &mut errors_buffer, - ); + self.check_type_tests(infcx, body, outlives_requirements.as_mut(), &mut errors_buffer); debug!(?errors_buffer); debug!(?outlives_requirements); @@ -938,7 +932,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { fn check_type_tests( &self, infcx: &InferCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, body: &Body<'tcx>, mut propagated_outlives_requirements: Option<&mut Vec<ClosureOutlivesRequirement<'tcx>>>, errors_buffer: &mut RegionErrors<'tcx>, @@ -956,7 +949,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { let generic_ty = type_test.generic_kind.to_ty(tcx); if self.eval_verify_bound( infcx, - param_env, generic_ty, type_test.lower_bound, &type_test.verify_bound, @@ -967,7 +959,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { if let Some(propagated_outlives_requirements) = &mut propagated_outlives_requirements { if self.try_promote_type_test( infcx, - param_env, body, type_test, propagated_outlives_requirements, @@ -1025,7 +1016,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { fn try_promote_type_test( &self, infcx: &InferCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, body: &Body<'tcx>, type_test: &TypeTest<'tcx>, propagated_outlives_requirements: &mut Vec<ClosureOutlivesRequirement<'tcx>>, @@ -1087,7 +1077,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { // where `ur` is a local bound -- we are sometimes in a // position to prove things that our caller cannot. See // #53570 for an example. - if self.eval_verify_bound(infcx, param_env, generic_ty, ur, &type_test.verify_bound) { + if self.eval_verify_bound(infcx, generic_ty, ur, &type_test.verify_bound) { continue; } @@ -1270,7 +1260,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { fn eval_verify_bound( &self, infcx: &InferCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, generic_ty: Ty<'tcx>, lower_bound: RegionVid, verify_bound: &VerifyBound<'tcx>, @@ -1279,7 +1268,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { match verify_bound { VerifyBound::IfEq(verify_if_eq_b) => { - self.eval_if_eq(infcx, param_env, generic_ty, lower_bound, *verify_if_eq_b) + self.eval_if_eq(infcx, generic_ty, lower_bound, *verify_if_eq_b) } VerifyBound::IsEmpty => { @@ -1293,11 +1282,11 @@ impl<'tcx> RegionInferenceContext<'tcx> { } VerifyBound::AnyBound(verify_bounds) => verify_bounds.iter().any(|verify_bound| { - self.eval_verify_bound(infcx, param_env, generic_ty, lower_bound, verify_bound) + self.eval_verify_bound(infcx, generic_ty, lower_bound, verify_bound) }), VerifyBound::AllBounds(verify_bounds) => verify_bounds.iter().all(|verify_bound| { - self.eval_verify_bound(infcx, param_env, generic_ty, lower_bound, verify_bound) + self.eval_verify_bound(infcx, generic_ty, lower_bound, verify_bound) }), } } @@ -1305,19 +1294,13 @@ impl<'tcx> RegionInferenceContext<'tcx> { fn eval_if_eq( &self, infcx: &InferCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, generic_ty: Ty<'tcx>, lower_bound: RegionVid, verify_if_eq_b: ty::Binder<'tcx, VerifyIfEq<'tcx>>, ) -> bool { let generic_ty = self.normalize_to_scc_representatives(infcx.tcx, generic_ty); let verify_if_eq_b = self.normalize_to_scc_representatives(infcx.tcx, verify_if_eq_b); - match test_type_match::extract_verify_if_eq( - infcx.tcx, - param_env, - &verify_if_eq_b, - generic_ty, - ) { + match test_type_match::extract_verify_if_eq(infcx.tcx, &verify_if_eq_b, generic_ty) { Some(r) => { let r_vid = self.to_region_vid(r); self.eval_outlives(r_vid, lower_bound) diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 98c21693cf0..5247d5f6981 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -268,7 +268,7 @@ fn mirbug(tcx: TyCtxt<'_>, span: Span, msg: String) { // We sometimes see MIR failures (notably predicate failures) due to // the fact that we check rvalue sized predicates here. So use `span_delayed_bug` // to avoid reporting bugs in those cases. - tcx.sess.diagnostic().span_delayed_bug(span, msg); + tcx.sess.dcx().span_delayed_bug(span, msg); } enum FieldAccessError { diff --git a/compiler/rustc_builtin_macros/src/alloc_error_handler.rs b/compiler/rustc_builtin_macros/src/alloc_error_handler.rs index e13d217ef01..dffda8acc8d 100644 --- a/compiler/rustc_builtin_macros/src/alloc_error_handler.rs +++ b/compiler/rustc_builtin_macros/src/alloc_error_handler.rs @@ -31,7 +31,7 @@ pub fn expand( { (item, true, ecx.with_def_site_ctxt(fn_kind.sig.span)) } else { - ecx.sess.diagnostic().emit_err(errors::AllocErrorMustBeFn { span: item.span() }); + ecx.sess.dcx().emit_err(errors::AllocErrorMustBeFn { span: item.span() }); return vec![orig_item]; }; diff --git a/compiler/rustc_builtin_macros/src/asm.rs b/compiler/rustc_builtin_macros/src/asm.rs index 9e66eaf73b3..6f1acd8e570 100644 --- a/compiler/rustc_builtin_macros/src/asm.rs +++ b/compiler/rustc_builtin_macros/src/asm.rs @@ -47,10 +47,10 @@ pub fn parse_asm_args<'a>( sp: Span, is_global_asm: bool, ) -> PResult<'a, AsmArgs> { - let diag = &sess.span_diagnostic; + let dcx = &sess.dcx; if p.token == token::Eof { - return Err(diag.create_err(errors::AsmRequiresTemplate { span: sp })); + return Err(dcx.create_err(errors::AsmRequiresTemplate { span: sp })); } let first_template = p.parse_expr()?; @@ -69,7 +69,7 @@ pub fn parse_asm_args<'a>( if !p.eat(&token::Comma) { if allow_templates { // After a template string, we always expect *only* a comma... - return Err(diag.create_err(errors::AsmExpectedComma { span: p.token.span })); + return Err(dcx.create_err(errors::AsmExpectedComma { span: p.token.span })); } else { // ...after that delegate to `expect` to also include the other expected tokens. return Err(p.expect(&token::Comma).err().unwrap()); @@ -110,7 +110,7 @@ pub fn parse_asm_args<'a>( let op = if !is_global_asm && p.eat_keyword(kw::In) { let reg = parse_reg(p, &mut explicit_reg)?; if p.eat_keyword(kw::Underscore) { - let err = diag.create_err(errors::AsmUnderscoreInput { span: p.token.span }); + let err = dcx.create_err(errors::AsmUnderscoreInput { span: p.token.span }); return Err(err); } let expr = p.parse_expr()?; @@ -126,7 +126,7 @@ pub fn parse_asm_args<'a>( } else if !is_global_asm && p.eat_keyword(sym::inout) { let reg = parse_reg(p, &mut explicit_reg)?; if p.eat_keyword(kw::Underscore) { - let err = diag.create_err(errors::AsmUnderscoreInput { span: p.token.span }); + let err = dcx.create_err(errors::AsmUnderscoreInput { span: p.token.span }); return Err(err); } let expr = p.parse_expr()?; @@ -140,7 +140,7 @@ pub fn parse_asm_args<'a>( } else if !is_global_asm && p.eat_keyword(sym::inlateout) { let reg = parse_reg(p, &mut explicit_reg)?; if p.eat_keyword(kw::Underscore) { - let err = diag.create_err(errors::AsmUnderscoreInput { span: p.token.span }); + let err = dcx.create_err(errors::AsmUnderscoreInput { span: p.token.span }); return Err(err); } let expr = p.parse_expr()?; @@ -157,7 +157,7 @@ pub fn parse_asm_args<'a>( } else if p.eat_keyword(sym::sym) { let expr = p.parse_expr()?; let ast::ExprKind::Path(qself, path) = &expr.kind else { - let err = diag.create_err(errors::AsmSymNoPath { span: expr.span }); + let err = dcx.create_err(errors::AsmSymNoPath { span: expr.span }); return Err(err); }; let sym = ast::InlineAsmSym { @@ -178,7 +178,7 @@ pub fn parse_asm_args<'a>( ) => {} ast::ExprKind::MacCall(..) => {} _ => { - let err = diag.create_err(errors::AsmExpectedOther { + let err = dcx.create_err(errors::AsmExpectedOther { span: template.span, is_global_asm, }); @@ -201,12 +201,12 @@ pub fn parse_asm_args<'a>( // of the argument available. if explicit_reg { if name.is_some() { - diag.emit_err(errors::AsmExplicitRegisterName { span }); + dcx.emit_err(errors::AsmExplicitRegisterName { span }); } args.reg_args.insert(slot); } else if let Some(name) = name { if let Some(&prev) = args.named_args.get(&name) { - diag.emit_err(errors::AsmDuplicateArg { span, name, prev: args.operands[prev].1 }); + dcx.emit_err(errors::AsmDuplicateArg { span, name, prev: args.operands[prev].1 }); continue; } args.named_args.insert(name, slot); @@ -215,7 +215,7 @@ pub fn parse_asm_args<'a>( let named = args.named_args.values().map(|p| args.operands[*p].1).collect(); let explicit = args.reg_args.iter().map(|p| args.operands[p].1).collect(); - diag.emit_err(errors::AsmPositionalAfter { span, named, explicit }); + dcx.emit_err(errors::AsmPositionalAfter { span, named, explicit }); } } } @@ -224,19 +224,19 @@ pub fn parse_asm_args<'a>( && args.options.contains(ast::InlineAsmOptions::READONLY) { let spans = args.options_spans.clone(); - diag.emit_err(errors::AsmMutuallyExclusive { spans, opt1: "nomem", opt2: "readonly" }); + dcx.emit_err(errors::AsmMutuallyExclusive { spans, opt1: "nomem", opt2: "readonly" }); } if args.options.contains(ast::InlineAsmOptions::PURE) && args.options.contains(ast::InlineAsmOptions::NORETURN) { let spans = args.options_spans.clone(); - diag.emit_err(errors::AsmMutuallyExclusive { spans, opt1: "pure", opt2: "noreturn" }); + dcx.emit_err(errors::AsmMutuallyExclusive { spans, opt1: "pure", opt2: "noreturn" }); } if args.options.contains(ast::InlineAsmOptions::PURE) && !args.options.intersects(ast::InlineAsmOptions::NOMEM | ast::InlineAsmOptions::READONLY) { let spans = args.options_spans.clone(); - diag.emit_err(errors::AsmPureCombine { spans }); + dcx.emit_err(errors::AsmPureCombine { spans }); } let mut have_real_output = false; @@ -263,17 +263,17 @@ pub fn parse_asm_args<'a>( } } if args.options.contains(ast::InlineAsmOptions::PURE) && !have_real_output { - diag.emit_err(errors::AsmPureNoOutput { spans: args.options_spans.clone() }); + dcx.emit_err(errors::AsmPureNoOutput { spans: args.options_spans.clone() }); } if args.options.contains(ast::InlineAsmOptions::NORETURN) && !outputs_sp.is_empty() { - let err = diag.create_err(errors::AsmNoReturn { outputs_sp }); + let err = dcx.create_err(errors::AsmNoReturn { outputs_sp }); // Bail out now since this is likely to confuse MIR return Err(err); } if args.clobber_abis.len() > 0 { if is_global_asm { - let err = diag.create_err(errors::GlobalAsmClobberAbi { + let err = dcx.create_err(errors::GlobalAsmClobberAbi { spans: args.clobber_abis.iter().map(|(_, span)| *span).collect(), }); @@ -281,7 +281,7 @@ pub fn parse_asm_args<'a>( return Err(err); } if !regclass_outputs.is_empty() { - diag.emit_err(errors::AsmClobberNoReg { + dcx.emit_err(errors::AsmClobberNoReg { spans: regclass_outputs, clobbers: args.clobber_abis.iter().map(|(_, span)| *span).collect(), }); @@ -298,7 +298,7 @@ pub fn parse_asm_args<'a>( fn err_duplicate_option(p: &mut Parser<'_>, symbol: Symbol, span: Span) { // Tool-only output let full_span = if p.token.kind == token::Comma { span.to(p.token.span) } else { span }; - p.sess.span_diagnostic.emit_err(errors::AsmOptAlreadyprovided { span, symbol, full_span }); + p.sess.dcx.emit_err(errors::AsmOptAlreadyprovided { span, symbol, full_span }); } /// Try to set the provided option in the provided `AsmArgs`. @@ -370,7 +370,7 @@ fn parse_clobber_abi<'a>(p: &mut Parser<'a>, args: &mut AsmArgs) -> PResult<'a, p.expect(&token::OpenDelim(Delimiter::Parenthesis))?; if p.eat(&token::CloseDelim(Delimiter::Parenthesis)) { - return Err(p.sess.span_diagnostic.create_err(errors::NonABI { span: p.token.span })); + return Err(p.sess.dcx.create_err(errors::NonABI { span: p.token.span })); } let mut new_abis = Vec::new(); @@ -381,8 +381,7 @@ fn parse_clobber_abi<'a>(p: &mut Parser<'a>, args: &mut AsmArgs) -> PResult<'a, } Err(opt_lit) => { let span = opt_lit.map_or(p.token.span, |lit| lit.span); - let mut err = - p.sess.span_diagnostic.struct_span_err(span, "expected string literal"); + let mut err = p.sess.dcx.struct_span_err(span, "expected string literal"); err.span_label(span, "not a string literal"); return Err(err); } diff --git a/compiler/rustc_builtin_macros/src/assert/context.rs b/compiler/rustc_builtin_macros/src/assert/context.rs index b54e119189a..d244897f8a5 100644 --- a/compiler/rustc_builtin_macros/src/assert/context.rs +++ b/compiler/rustc_builtin_macros/src/assert/context.rs @@ -303,7 +303,7 @@ impl<'cx, 'a> Context<'cx, 'a> { | ExprKind::Continue(_) | ExprKind::Err | ExprKind::Field(_, _) - | ExprKind::ForLoop(_, _, _, _) + | ExprKind::ForLoop { .. } | ExprKind::FormatArgs(_) | ExprKind::IncludedBytes(..) | ExprKind::InlineAsm(_) diff --git a/compiler/rustc_builtin_macros/src/cmdline_attrs.rs b/compiler/rustc_builtin_macros/src/cmdline_attrs.rs index 3b1fde1f097..2803ddefba2 100644 --- a/compiler/rustc_builtin_macros/src/cmdline_attrs.rs +++ b/compiler/rustc_builtin_macros/src/cmdline_attrs.rs @@ -25,9 +25,7 @@ pub fn inject(krate: &mut ast::Crate, parse_sess: &ParseSess, attrs: &[String]) }; let end_span = parser.token.span; if parser.token != token::Eof { - parse_sess - .span_diagnostic - .emit_err(errors::InvalidCrateAttr { span: start_span.to(end_span) }); + parse_sess.dcx.emit_err(errors::InvalidCrateAttr { span: start_span.to(end_span) }); continue; } diff --git a/compiler/rustc_builtin_macros/src/deriving/clone.rs b/compiler/rustc_builtin_macros/src/deriving/clone.rs index 1649cc76c8d..467fa5a2b15 100644 --- a/compiler/rustc_builtin_macros/src/deriving/clone.rs +++ b/compiler/rustc_builtin_macros/src/deriving/clone.rs @@ -188,7 +188,7 @@ fn cs_clone( } let expr = match *vdata { - VariantData::Struct(..) => { + VariantData::Struct { .. } => { let fields = all_fields .iter() .map(|field| { diff --git a/compiler/rustc_builtin_macros/src/deriving/debug.rs b/compiler/rustc_builtin_macros/src/deriving/debug.rs index 30c9b35bbac..50ea8628861 100644 --- a/compiler/rustc_builtin_macros/src/deriving/debug.rs +++ b/compiler/rustc_builtin_macros/src/deriving/debug.rs @@ -71,7 +71,7 @@ fn show_substructure(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_> (false, 0) } ast::VariantData::Tuple(..) => (false, 1), - ast::VariantData::Struct(..) => (true, 2), + ast::VariantData::Struct { .. } => (true, 2), }; // The number of fields that can be handled without an array. @@ -226,7 +226,7 @@ fn show_fieldless_enum( debug_assert!(fields.is_empty()); cx.pat_tuple_struct(span, variant_path, ThinVec::new()) } - ast::VariantData::Struct(fields, _) => { + ast::VariantData::Struct { fields, .. } => { debug_assert!(fields.is_empty()); cx.pat_struct(span, variant_path, ThinVec::new()) } diff --git a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs index 23502b6eafc..841cac78149 100644 --- a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs +++ b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs @@ -1485,7 +1485,7 @@ impl<'a> TraitDef<'a> { let struct_path = struct_path.clone(); match *struct_def { - VariantData::Struct(..) => { + VariantData::Struct { .. } => { let field_pats = pieces_iter .map(|(sp, ident, pat)| { if ident.is_none() { diff --git a/compiler/rustc_builtin_macros/src/errors.rs b/compiler/rustc_builtin_macros/src/errors.rs index 3d02cd72e54..e07eb2e490b 100644 --- a/compiler/rustc_builtin_macros/src/errors.rs +++ b/compiler/rustc_builtin_macros/src/errors.rs @@ -1,6 +1,6 @@ use rustc_errors::{ - AddToDiagnostic, DiagnosticBuilder, ErrorGuaranteed, Handler, IntoDiagnostic, MultiSpan, - SingleLabelManySpans, + AddToDiagnostic, DiagCtxt, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, Level, + MultiSpan, SingleLabelManySpans, }; use rustc_macros::{Diagnostic, Subdiagnostic}; use rustc_span::{symbol::Ident, Span, Symbol}; @@ -446,14 +446,14 @@ pub(crate) struct EnvNotDefinedWithUserMessage { } // Hand-written implementation to support custom user messages. -impl<'a> IntoDiagnostic<'a> for EnvNotDefinedWithUserMessage { +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for EnvNotDefinedWithUserMessage { #[track_caller] - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { #[expect( rustc::untranslatable_diagnostic, reason = "cannot translate user-provided messages" )] - let mut diag = handler.struct_err(self.msg_from_user.to_string()); + let mut diag = DiagnosticBuilder::new(dcx, level, self.msg_from_user.to_string()); diag.set_span(self.span); diag } @@ -801,18 +801,21 @@ pub(crate) struct AsmClobberNoReg { pub(crate) clobbers: Vec<Span>, } -impl<'a> IntoDiagnostic<'a> for AsmClobberNoReg { - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> { - let mut diag = - handler.struct_err(crate::fluent_generated::builtin_macros_asm_clobber_no_reg); +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for AsmClobberNoReg { + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { + let mut diag = DiagnosticBuilder::new( + dcx, + level, + crate::fluent_generated::builtin_macros_asm_clobber_no_reg, + ); diag.set_span(self.spans.clone()); // eager translation as `span_labels` takes `AsRef<str>` - let lbl1 = handler.eagerly_translate_to_string( + let lbl1 = dcx.eagerly_translate_to_string( crate::fluent_generated::builtin_macros_asm_clobber_abi, [].into_iter(), ); diag.span_labels(self.clobbers, &lbl1); - let lbl2 = handler.eagerly_translate_to_string( + let lbl2 = dcx.eagerly_translate_to_string( crate::fluent_generated::builtin_macros_asm_clobber_outputs, [].into_iter(), ); diff --git a/compiler/rustc_builtin_macros/src/format.rs b/compiler/rustc_builtin_macros/src/format.rs index c5fd535b036..2f23146096f 100644 --- a/compiler/rustc_builtin_macros/src/format.rs +++ b/compiler/rustc_builtin_macros/src/format.rs @@ -8,9 +8,7 @@ use rustc_ast::{ FormatDebugHex, FormatOptions, FormatPlaceholder, FormatSign, FormatTrait, }; use rustc_data_structures::fx::FxHashSet; -use rustc_errors::{ - Applicability, DiagnosticBuilder, ErrorGuaranteed, MultiSpan, PResult, SingleLabelManySpans, -}; +use rustc_errors::{Applicability, DiagnosticBuilder, MultiSpan, PResult, SingleLabelManySpans}; use rustc_expand::base::{self, *}; use rustc_parse_format as parse; use rustc_span::symbol::{Ident, Symbol}; @@ -726,7 +724,7 @@ fn report_redundant_format_arguments<'a>( args: &FormatArguments, used: &[bool], placeholders: Vec<(Span, &str)>, -) -> Option<DiagnosticBuilder<'a, ErrorGuaranteed>> { +) -> Option<DiagnosticBuilder<'a>> { let mut fmt_arg_indices = vec![]; let mut args_spans = vec![]; let mut fmt_spans = vec![]; @@ -885,7 +883,6 @@ fn report_invalid_references( highlight: SingleLabelManySpans { spans: args.explicit_args().iter().map(|arg| arg.expr.span).collect(), label: "", - kind: rustc_errors::LabelKind::Label, }, }); // Point out `{:.*}` placeholders: those take an extra argument. diff --git a/compiler/rustc_builtin_macros/src/global_allocator.rs b/compiler/rustc_builtin_macros/src/global_allocator.rs index 6dc75e3ba4c..00c7907cdb4 100644 --- a/compiler/rustc_builtin_macros/src/global_allocator.rs +++ b/compiler/rustc_builtin_macros/src/global_allocator.rs @@ -34,7 +34,7 @@ pub fn expand( { (item, true, ecx.with_def_site_ctxt(ty.span)) } else { - ecx.sess.diagnostic().emit_err(errors::AllocMustStatics { span: item.span() }); + ecx.sess.dcx().emit_err(errors::AllocMustStatics { span: item.span() }); return vec![orig_item]; }; diff --git a/compiler/rustc_builtin_macros/src/proc_macro_harness.rs b/compiler/rustc_builtin_macros/src/proc_macro_harness.rs index dae1bc5bfe5..4fddaa8ab6c 100644 --- a/compiler/rustc_builtin_macros/src/proc_macro_harness.rs +++ b/compiler/rustc_builtin_macros/src/proc_macro_harness.rs @@ -38,7 +38,7 @@ enum ProcMacro { struct CollectProcMacros<'a> { macros: Vec<ProcMacro>, in_root: bool, - handler: &'a rustc_errors::Handler, + dcx: &'a rustc_errors::DiagCtxt, source_map: &'a SourceMap, is_proc_macro_crate: bool, is_test_crate: bool, @@ -52,7 +52,7 @@ pub fn inject( is_proc_macro_crate: bool, has_proc_macro_decls: bool, is_test_crate: bool, - handler: &rustc_errors::Handler, + dcx: &rustc_errors::DiagCtxt, ) { let ecfg = ExpansionConfig::default("proc_macro".to_string(), features); let mut cx = ExtCtxt::new(sess, ecfg, resolver, None); @@ -60,7 +60,7 @@ pub fn inject( let mut collect = CollectProcMacros { macros: Vec::new(), in_root: true, - handler, + dcx, source_map: sess.source_map(), is_proc_macro_crate, is_test_crate, @@ -86,13 +86,13 @@ pub fn inject( impl<'a> CollectProcMacros<'a> { fn check_not_pub_in_root(&self, vis: &ast::Visibility, sp: Span) { if self.is_proc_macro_crate && self.in_root && vis.kind.is_pub() { - self.handler.emit_err(errors::ProcMacro { span: sp }); + self.dcx.emit_err(errors::ProcMacro { span: sp }); } } fn collect_custom_derive(&mut self, item: &'a ast::Item, attr: &'a ast::Attribute) { let Some((trait_name, proc_attrs)) = - parse_macro_name_and_helper_attrs(self.handler, attr, "derive") + parse_macro_name_and_helper_attrs(self.dcx, attr, "derive") else { return; }; @@ -112,7 +112,7 @@ impl<'a> CollectProcMacros<'a> { } else { "functions tagged with `#[proc_macro_derive]` must be `pub`" }; - self.handler.span_err(self.source_map.guess_head_span(item.span), msg); + self.dcx.span_err(self.source_map.guess_head_span(item.span), msg); } } @@ -130,7 +130,7 @@ impl<'a> CollectProcMacros<'a> { } else { "functions tagged with `#[proc_macro_attribute]` must be `pub`" }; - self.handler.span_err(self.source_map.guess_head_span(item.span), msg); + self.dcx.span_err(self.source_map.guess_head_span(item.span), msg); } } @@ -148,7 +148,7 @@ impl<'a> CollectProcMacros<'a> { } else { "functions tagged with `#[proc_macro]` must be `pub`" }; - self.handler.span_err(self.source_map.guess_head_span(item.span), msg); + self.dcx.span_err(self.source_map.guess_head_span(item.span), msg); } } } @@ -157,7 +157,7 @@ impl<'a> Visitor<'a> for CollectProcMacros<'a> { fn visit_item(&mut self, item: &'a ast::Item) { if let ast::ItemKind::MacroDef(..) = item.kind { if self.is_proc_macro_crate && attr::contains_name(&item.attrs, sym::macro_export) { - self.handler.emit_err(errors::ExportMacroRules { + self.dcx.emit_err(errors::ExportMacroRules { span: self.source_map.guess_head_span(item.span), }); } @@ -192,7 +192,7 @@ impl<'a> Visitor<'a> for CollectProcMacros<'a> { ) }; - self.handler + self.dcx .struct_span_err(attr.span, msg) .span_label(prev_attr.span, "previous attribute here") .emit(); @@ -218,7 +218,7 @@ impl<'a> Visitor<'a> for CollectProcMacros<'a> { pprust::path_to_string(&attr.get_normal_item().path), ); - self.handler.span_err(attr.span, msg); + self.dcx.span_err(attr.span, msg); return; } @@ -232,7 +232,7 @@ impl<'a> Visitor<'a> for CollectProcMacros<'a> { pprust::path_to_string(&attr.get_normal_item().path), ); - self.handler.span_err(attr.span, msg); + self.dcx.span_err(attr.span, msg); return; } diff --git a/compiler/rustc_builtin_macros/src/test.rs b/compiler/rustc_builtin_macros/src/test.rs index e5b274304e7..d760cea59a7 100644 --- a/compiler/rustc_builtin_macros/src/test.rs +++ b/compiler/rustc_builtin_macros/src/test.rs @@ -5,7 +5,7 @@ use crate::util::{check_builtin_macro_attribute, warn_on_duplicate_attribute}; use rustc_ast::ptr::P; use rustc_ast::{self as ast, attr, GenericParamKind}; use rustc_ast_pretty::pprust; -use rustc_errors::Applicability; +use rustc_errors::{Applicability, DiagnosticBuilder, Level}; use rustc_expand::base::*; use rustc_span::symbol::{sym, Ident, Symbol}; use rustc_span::{ErrorGuaranteed, FileNameDisplayPreference, Span}; @@ -389,17 +389,16 @@ pub fn expand_test_or_bench( } fn not_testable_error(cx: &ExtCtxt<'_>, attr_sp: Span, item: Option<&ast::Item>) { - let diag = cx.sess.diagnostic(); + let dcx = cx.sess.dcx(); let msg = "the `#[test]` attribute may only be used on a non-associated function"; - let mut err = match item.map(|i| &i.kind) { + let level = match item.map(|i| &i.kind) { // These were a warning before #92959 and need to continue being that to avoid breaking // stable user code (#94508). - Some(ast::ItemKind::MacCall(_)) => diag.struct_span_warn(attr_sp, msg), - // `.forget_guarantee()` needed to get these two arms to match types. Because of how - // locally close the `.emit()` call is I'm comfortable with it, but if it can be - // reworked in the future to not need it, it'd be nice. - _ => diag.struct_span_err(attr_sp, msg).forget_guarantee(), + Some(ast::ItemKind::MacCall(_)) => Level::Warning(None), + _ => Level::Error { lint: false }, }; + let mut err = DiagnosticBuilder::<()>::new(dcx, level, msg); + err.set_span(attr_sp); if let Some(item) = item { err.span_label( item.span, @@ -466,7 +465,7 @@ fn should_ignore_message(i: &ast::Item) -> Option<Symbol> { fn should_panic(cx: &ExtCtxt<'_>, i: &ast::Item) -> ShouldPanic { match attr::find_by_name(&i.attrs, sym::should_panic) { Some(attr) => { - let sd = cx.sess.diagnostic(); + let dcx = cx.sess.dcx(); match attr.meta_item_list() { // Handle #[should_panic(expected = "foo")] @@ -477,7 +476,7 @@ fn should_panic(cx: &ExtCtxt<'_>, i: &ast::Item) -> ShouldPanic { .and_then(|mi| mi.meta_item()) .and_then(|mi| mi.value_str()); if list.len() != 1 || msg.is_none() { - sd.struct_span_warn( + dcx.struct_span_warn( attr.span, "argument must be of the form: \ `expected = \"error message\"`", @@ -535,30 +534,30 @@ fn check_test_signature( f: &ast::Fn, ) -> Result<(), ErrorGuaranteed> { let has_should_panic_attr = attr::contains_name(&i.attrs, sym::should_panic); - let sd = cx.sess.diagnostic(); + let dcx = cx.sess.dcx(); if let ast::Unsafe::Yes(span) = f.sig.header.unsafety { - return Err(sd.emit_err(errors::TestBadFn { span: i.span, cause: span, kind: "unsafe" })); + return Err(dcx.emit_err(errors::TestBadFn { span: i.span, cause: span, kind: "unsafe" })); } if let Some(coroutine_kind) = f.sig.header.coroutine_kind { match coroutine_kind { ast::CoroutineKind::Async { span, .. } => { - return Err(sd.emit_err(errors::TestBadFn { + return Err(dcx.emit_err(errors::TestBadFn { span: i.span, cause: span, kind: "async", })); } ast::CoroutineKind::Gen { span, .. } => { - return Err(sd.emit_err(errors::TestBadFn { + return Err(dcx.emit_err(errors::TestBadFn { span: i.span, cause: span, kind: "gen", })); } ast::CoroutineKind::AsyncGen { span, .. } => { - return Err(sd.emit_err(errors::TestBadFn { + return Err(dcx.emit_err(errors::TestBadFn { span: i.span, cause: span, kind: "async gen", @@ -576,15 +575,15 @@ fn check_test_signature( }; if !f.sig.decl.inputs.is_empty() { - return Err(sd.span_err(i.span, "functions used as tests can not have any arguments")); + return Err(dcx.span_err(i.span, "functions used as tests can not have any arguments")); } if has_should_panic_attr && has_output { - return Err(sd.span_err(i.span, "functions using `#[should_panic]` must return `()`")); + return Err(dcx.span_err(i.span, "functions using `#[should_panic]` must return `()`")); } if f.generics.params.iter().any(|param| !matches!(param.kind, GenericParamKind::Lifetime)) { - return Err(sd.span_err( + return Err(dcx.span_err( i.span, "functions used as tests can not have any non-lifetime generic parameters", )); @@ -601,7 +600,7 @@ fn check_bench_signature( // N.B., inadequate check, but we're running // well before resolve, can't get too deep. if f.sig.decl.inputs.len() != 1 { - return Err(cx.sess.diagnostic().emit_err(errors::BenchSig { span: i.span })); + return Err(cx.sess.dcx().emit_err(errors::BenchSig { span: i.span })); } Ok(()) } diff --git a/compiler/rustc_builtin_macros/src/test_harness.rs b/compiler/rustc_builtin_macros/src/test_harness.rs index c5daf17abb9..dc28cd2ea31 100644 --- a/compiler/rustc_builtin_macros/src/test_harness.rs +++ b/compiler/rustc_builtin_macros/src/test_harness.rs @@ -47,7 +47,7 @@ pub fn inject( features: &Features, resolver: &mut dyn ResolverExpand, ) { - let span_diagnostic = sess.diagnostic(); + let dcx = sess.dcx(); let panic_strategy = sess.panic_strategy(); let platform_panic_strategy = sess.target.panic_strategy; @@ -60,7 +60,7 @@ pub fn inject( // Do this here so that the test_runner crate attribute gets marked as used // even in non-test builds - let test_runner = get_test_runner(span_diagnostic, krate); + let test_runner = get_test_runner(dcx, krate); if sess.is_test_crate() { let panic_strategy = match (panic_strategy, sess.opts.unstable_opts.panic_abort_tests) { @@ -70,7 +70,7 @@ pub fn inject( // Silently allow compiling with panic=abort on these platforms, // but with old behavior (abort if a test fails). } else { - span_diagnostic.emit_err(errors::TestsNotSupport {}); + dcx.emit_err(errors::TestsNotSupport {}); } PanicStrategy::Unwind } @@ -389,7 +389,7 @@ fn get_test_name(i: &ast::Item) -> Option<Symbol> { attr::first_attr_value_str_by_name(&i.attrs, sym::rustc_test_marker) } -fn get_test_runner(sd: &rustc_errors::Handler, krate: &ast::Crate) -> Option<ast::Path> { +fn get_test_runner(dcx: &rustc_errors::DiagCtxt, krate: &ast::Crate) -> Option<ast::Path> { let test_attr = attr::find_by_name(&krate.attrs, sym::test_runner)?; let meta_list = test_attr.meta_item_list()?; let span = test_attr.span; @@ -397,11 +397,11 @@ fn get_test_runner(sd: &rustc_errors::Handler, krate: &ast::Crate) -> Option<ast [single] => match single.meta_item() { Some(meta_item) if meta_item.is_word() => return Some(meta_item.path.clone()), _ => { - sd.emit_err(errors::TestRunnerInvalid { span }); + dcx.emit_err(errors::TestRunnerInvalid { span }); } }, _ => { - sd.emit_err(errors::TestRunnerNargs { span }); + dcx.emit_err(errors::TestRunnerNargs { span }); } } None diff --git a/compiler/rustc_codegen_cranelift/Cargo.lock b/compiler/rustc_codegen_cranelift/Cargo.lock index 901d1dbea66..74e7afee7bc 100644 --- a/compiler/rustc_codegen_cranelift/Cargo.lock +++ b/compiler/rustc_codegen_cranelift/Cargo.lock @@ -45,18 +45,18 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd" [[package]] name = "cranelift-bforest" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "76eb38f2af690b5a4411d9a8782b6d77dabff3ca939e0518453ab9f9a4392d41" +checksum = "7c22542c0b95bd3302f7ed6839869c561f2324bac2fd5e7e99f5cfa65fdc8b92" dependencies = [ "cranelift-entity", ] [[package]] name = "cranelift-codegen" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "39526c036b92912417e8931f52c1e235796688068d3efdbbd8b164f299d19156" +checksum = "6b3db903ef2e9c8a4de2ea6db5db052c7857282952f9df604aa55d169e6000d8" dependencies = [ "bumpalo", "cranelift-bforest", @@ -75,39 +75,39 @@ dependencies = [ [[package]] name = "cranelift-codegen-meta" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "fdb0deedc9fccf2db53a5a3c9c9d0163e44143b0d004dca9bf6ab6a0024cd79a" +checksum = "6590feb5a1d6438f974bf6a5ac4dddf69fca14e1f07f3265d880f69e61a94463" dependencies = [ "cranelift-codegen-shared", ] [[package]] name = "cranelift-codegen-shared" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "cea2d1b274e45aa8e61e9103efa1ba82d4b5a19d12bd1fd10744c3b7380ba3ff" +checksum = "7239038c56fafe77fddc8788fc8533dd6c474dc5bdc5637216404f41ba807330" [[package]] name = "cranelift-control" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6ea5977559a71e63db79a263f0e81a89b996e8a38212c4281e37dd1dbaa8b65c" +checksum = "f7dc9c595341404d381d27a3d950160856b35b402275f0c3990cd1ad683c8053" dependencies = [ "arbitrary", ] [[package]] name = "cranelift-entity" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2f871ada808b58158d84dfc43a6a2e2d2756baaf4ed1c51fd969ca8330e6ca5c" +checksum = "44e3ee532fc4776c69bcedf7e62f9632cbb3f35776fa9a525cdade3195baa3f7" [[package]] name = "cranelift-frontend" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e8e6890f587ef59824b3debe577e68fdf9b307b3808c54b8d93a18fd0b70941b" +checksum = "a612c94d09e653662ec37681dc2d6fd2b9856e6df7147be0afc9aabb0abf19df" dependencies = [ "cranelift-codegen", "log", @@ -117,15 +117,15 @@ dependencies = [ [[package]] name = "cranelift-isle" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a8d5fc6d5d3b52d1917002b17a8ecce448c2621b5bf394bb4e77e2f676893537" +checksum = "85db9830abeb1170b7d29b536ffd55af1d4d26ac8a77570b5d1aca003bf225cc" [[package]] name = "cranelift-jit" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e8a2d7744f743f59d9646d7589ad22ea17ed0d71e04906eb77c31e99bc13bd8b" +checksum = "4946271f1055e26544ef8c90fa24776f201566419dfac4b3962c39d5a804ff67" dependencies = [ "anyhow", "cranelift-codegen", @@ -143,9 +143,9 @@ dependencies = [ [[package]] name = "cranelift-module" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b96cb196334698e612c197d7d0ae59af5e07667306ec20d7be414717db400873" +checksum = "cb7e3bdae2597556e59edeb8ecb62eb32c7e054c4f042d393732902979db69c3" dependencies = [ "anyhow", "cranelift-codegen", @@ -154,9 +154,9 @@ dependencies = [ [[package]] name = "cranelift-native" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3e10c2e7faa65d4ae7de9a83b44f2c31aca7dc638e17d0a79572fdf8103d720b" +checksum = "301ef0edafeaeda5771a5d2db64ac53e1818ae3111220a185677025fe91db4a1" dependencies = [ "cranelift-codegen", "libc", @@ -165,9 +165,9 @@ dependencies = [ [[package]] name = "cranelift-object" -version = "0.102.0" +version = "0.103.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "83ce94e18756058af8a66e3c0ba1123ae15517c72162d8060d0cb0974642adf2" +checksum = "59e0ee3d013728903e0c513c31afa389b559bfd4fe8a44f80335c799e3132a41" dependencies = [ "anyhow", "cranelift-codegen", @@ -374,9 +374,9 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f" [[package]] name = "wasmtime-jit-icache-coherence" -version = "15.0.0" +version = "16.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b73ad1395eda136baec5ece7e079e0536a82ef73488e345456cc9b89858ad0ec" +checksum = "6b6d197fcc34ad32ed440e1f9552fd57d1f377d9699d31dee1b5b457322c1f8a" dependencies = [ "cfg-if", "libc", diff --git a/compiler/rustc_codegen_cranelift/Cargo.toml b/compiler/rustc_codegen_cranelift/Cargo.toml index 20fcd222732..fdac789423c 100644 --- a/compiler/rustc_codegen_cranelift/Cargo.toml +++ b/compiler/rustc_codegen_cranelift/Cargo.toml @@ -8,12 +8,12 @@ crate-type = ["dylib"] [dependencies] # These have to be in sync with each other -cranelift-codegen = { version = "0.102", default-features = false, features = ["std", "unwind", "all-arch"] } -cranelift-frontend = { version = "0.102" } -cranelift-module = { version = "0.102" } -cranelift-native = { version = "0.102" } -cranelift-jit = { version = "0.102", optional = true } -cranelift-object = { version = "0.102" } +cranelift-codegen = { version = "0.103", default-features = false, features = ["std", "unwind", "all-arch"] } +cranelift-frontend = { version = "0.103" } +cranelift-module = { version = "0.103" } +cranelift-native = { version = "0.103" } +cranelift-jit = { version = "0.103", optional = true } +cranelift-object = { version = "0.103" } target-lexicon = "0.12.0" gimli = { version = "0.28", default-features = false, features = ["write"]} object = { version = "0.32", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] } diff --git a/compiler/rustc_codegen_cranelift/build_system/tests.rs b/compiler/rustc_codegen_cranelift/build_system/tests.rs index 1a38d5967f4..cb7b2454cd5 100644 --- a/compiler/rustc_codegen_cranelift/build_system/tests.rs +++ b/compiler/rustc_codegen_cranelift/build_system/tests.rs @@ -232,6 +232,13 @@ const EXTENDED_SYSROOT_SUITE: &[TestCase] = &[ if runner.is_native { let mut test_cmd = PORTABLE_SIMD.test(&runner.target_compiler, &runner.dirs); test_cmd.arg("-q"); + // FIXME remove after portable-simd update + test_cmd + .arg("--") + .arg("--skip") + .arg("core_simd::swizzle::simd_swizzle") + .arg("--skip") + .arg("core_simd::vector::Simd<T,N>::lanes"); spawn_and_wait(test_cmd); } }), diff --git a/compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs b/compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs index afc51a47f14..a1cdf31c68a 100644 --- a/compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs +++ b/compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs @@ -337,17 +337,6 @@ fn main() { static REF2: &u8 = REF1; assert_eq!(*REF1, *REF2); - extern "C" { - type A; - } - - fn main() { - let x: &A = unsafe { &*(1usize as *const A) }; - - assert_eq!(unsafe { intrinsics::size_of_val(x) }, 0); - assert_eq!(unsafe { intrinsics::min_align_of_val(x) }, 1); - } - #[repr(simd)] struct V([f64; 2]); @@ -549,261 +538,38 @@ pub enum E1 { pub enum E2<X> { V1 { f: bool }, - /*_00*/ _01(X), - _02(X), - _03(X), - _04(X), - _05(X), - _06(X), - _07(X), - _08(X), - _09(X), - _0A(X), - _0B(X), - _0C(X), - _0D(X), - _0E(X), - _0F(X), - _10(X), - _11(X), - _12(X), - _13(X), - _14(X), - _15(X), - _16(X), - _17(X), - _18(X), - _19(X), - _1A(X), - _1B(X), - _1C(X), - _1D(X), - _1E(X), - _1F(X), - _20(X), - _21(X), - _22(X), - _23(X), - _24(X), - _25(X), - _26(X), - _27(X), - _28(X), - _29(X), - _2A(X), - _2B(X), - _2C(X), - _2D(X), - _2E(X), - _2F(X), - _30(X), - _31(X), - _32(X), - _33(X), - _34(X), - _35(X), - _36(X), - _37(X), - _38(X), - _39(X), - _3A(X), - _3B(X), - _3C(X), - _3D(X), - _3E(X), - _3F(X), - _40(X), - _41(X), - _42(X), - _43(X), - _44(X), - _45(X), - _46(X), - _47(X), - _48(X), - _49(X), - _4A(X), - _4B(X), - _4C(X), - _4D(X), - _4E(X), - _4F(X), - _50(X), - _51(X), - _52(X), - _53(X), - _54(X), - _55(X), - _56(X), - _57(X), - _58(X), - _59(X), - _5A(X), - _5B(X), - _5C(X), - _5D(X), - _5E(X), - _5F(X), - _60(X), - _61(X), - _62(X), - _63(X), - _64(X), - _65(X), - _66(X), - _67(X), - _68(X), - _69(X), - _6A(X), - _6B(X), - _6C(X), - _6D(X), - _6E(X), - _6F(X), - _70(X), - _71(X), - _72(X), - _73(X), - _74(X), - _75(X), - _76(X), - _77(X), - _78(X), - _79(X), - _7A(X), - _7B(X), - _7C(X), - _7D(X), - _7E(X), - _7F(X), - _80(X), - _81(X), - _82(X), - _83(X), - _84(X), - _85(X), - _86(X), - _87(X), - _88(X), - _89(X), - _8A(X), - _8B(X), - _8C(X), - _8D(X), - _8E(X), - _8F(X), - _90(X), - _91(X), - _92(X), - _93(X), - _94(X), - _95(X), - _96(X), - _97(X), - _98(X), - _99(X), - _9A(X), - _9B(X), - _9C(X), - _9D(X), - _9E(X), - _9F(X), - _A0(X), - _A1(X), - _A2(X), - _A3(X), - _A4(X), - _A5(X), - _A6(X), - _A7(X), - _A8(X), - _A9(X), - _AA(X), - _AB(X), - _AC(X), - _AD(X), - _AE(X), - _AF(X), - _B0(X), - _B1(X), - _B2(X), - _B3(X), - _B4(X), - _B5(X), - _B6(X), - _B7(X), - _B8(X), - _B9(X), - _BA(X), - _BB(X), - _BC(X), - _BD(X), - _BE(X), - _BF(X), - _C0(X), - _C1(X), - _C2(X), - _C3(X), - _C4(X), - _C5(X), - _C6(X), - _C7(X), - _C8(X), - _C9(X), - _CA(X), - _CB(X), - _CC(X), - _CD(X), - _CE(X), - _CF(X), - _D0(X), - _D1(X), - _D2(X), - _D3(X), - _D4(X), - _D5(X), - _D6(X), - _D7(X), - _D8(X), - _D9(X), - _DA(X), - _DB(X), - _DC(X), - _DD(X), - _DE(X), - _DF(X), - _E0(X), - _E1(X), - _E2(X), - _E3(X), - _E4(X), - _E5(X), - _E6(X), - _E7(X), - _E8(X), - _E9(X), - _EA(X), - _EB(X), - _EC(X), - _ED(X), - _EE(X), - _EF(X), - _F0(X), - _F1(X), - _F2(X), - _F3(X), - _F4(X), - _F5(X), - _F6(X), - _F7(X), - _F8(X), - _F9(X), - _FA(X), - _FB(X), - _FC(X), - _FD(X), - _FE(X), - _FF(X), + /*_00*/ _01(X), _02(X), _03(X), _04(X), _05(X), _06(X), _07(X), + _08(X), _09(X), _0A(X), _0B(X), _0C(X), _0D(X), _0E(X), _0F(X), + _10(X), _11(X), _12(X), _13(X), _14(X), _15(X), _16(X), _17(X), + _18(X), _19(X), _1A(X), _1B(X), _1C(X), _1D(X), _1E(X), _1F(X), + _20(X), _21(X), _22(X), _23(X), _24(X), _25(X), _26(X), _27(X), + _28(X), _29(X), _2A(X), _2B(X), _2C(X), _2D(X), _2E(X), _2F(X), + _30(X), _31(X), _32(X), _33(X), _34(X), _35(X), _36(X), _37(X), + _38(X), _39(X), _3A(X), _3B(X), _3C(X), _3D(X), _3E(X), _3F(X), + _40(X), _41(X), _42(X), _43(X), _44(X), _45(X), _46(X), _47(X), + _48(X), _49(X), _4A(X), _4B(X), _4C(X), _4D(X), _4E(X), _4F(X), + _50(X), _51(X), _52(X), _53(X), _54(X), _55(X), _56(X), _57(X), + _58(X), _59(X), _5A(X), _5B(X), _5C(X), _5D(X), _5E(X), _5F(X), + _60(X), _61(X), _62(X), _63(X), _64(X), _65(X), _66(X), _67(X), + _68(X), _69(X), _6A(X), _6B(X), _6C(X), _6D(X), _6E(X), _6F(X), + _70(X), _71(X), _72(X), _73(X), _74(X), _75(X), _76(X), _77(X), + _78(X), _79(X), _7A(X), _7B(X), _7C(X), _7D(X), _7E(X), _7F(X), + _80(X), _81(X), _82(X), _83(X), _84(X), _85(X), _86(X), _87(X), + _88(X), _89(X), _8A(X), _8B(X), _8C(X), _8D(X), _8E(X), _8F(X), + _90(X), _91(X), _92(X), _93(X), _94(X), _95(X), _96(X), _97(X), + _98(X), _99(X), _9A(X), _9B(X), _9C(X), _9D(X), _9E(X), _9F(X), + _A0(X), _A1(X), _A2(X), _A3(X), _A4(X), _A5(X), _A6(X), _A7(X), + _A8(X), _A9(X), _AA(X), _AB(X), _AC(X), _AD(X), _AE(X), _AF(X), + _B0(X), _B1(X), _B2(X), _B3(X), _B4(X), _B5(X), _B6(X), _B7(X), + _B8(X), _B9(X), _BA(X), _BB(X), _BC(X), _BD(X), _BE(X), _BF(X), + _C0(X), _C1(X), _C2(X), _C3(X), _C4(X), _C5(X), _C6(X), _C7(X), + _C8(X), _C9(X), _CA(X), _CB(X), _CC(X), _CD(X), _CE(X), _CF(X), + _D0(X), _D1(X), _D2(X), _D3(X), _D4(X), _D5(X), _D6(X), _D7(X), + _D8(X), _D9(X), _DA(X), _DB(X), _DC(X), _DD(X), _DE(X), _DF(X), + _E0(X), _E1(X), _E2(X), _E3(X), _E4(X), _E5(X), _E6(X), _E7(X), + _E8(X), _E9(X), _EA(X), _EB(X), _EC(X), _ED(X), _EE(X), _EF(X), + _F0(X), _F1(X), _F2(X), _F3(X), _F4(X), _F5(X), _F6(X), _F7(X), + _F8(X), _F9(X), _FA(X), _FB(X), _FC(X), _FD(X), _FE(X), _FF(X), V3, V4, diff --git a/compiler/rustc_codegen_cranelift/patches/0001-portable-simd-Enable-the-exposed_provenance-feature.patch b/compiler/rustc_codegen_cranelift/patches/0001-portable-simd-Enable-the-exposed_provenance-feature.patch new file mode 100644 index 00000000000..b8c0783f524 --- /dev/null +++ b/compiler/rustc_codegen_cranelift/patches/0001-portable-simd-Enable-the-exposed_provenance-feature.patch @@ -0,0 +1,22 @@ +From a101a43b795431ce617e7782afb451f4853afc00 Mon Sep 17 00:00:00 2001 +From: bjorn3 <17426603+bjorn3@users.noreply.github.com> +Date: Thu, 7 Dec 2023 14:51:35 +0000 +Subject: [PATCH] Enable the exposed_provenance feature + +--- + crates/core_simd/tests/pointers.rs | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/crates/core_simd/tests/pointers.rs b/crates/core_simd/tests/pointers.rs +index 0ae8f83..06620d6 100644 +--- a/crates/core_simd/tests/pointers.rs ++++ b/crates/core_simd/tests/pointers.rs +@@ -1,4 +1,4 @@ +-#![feature(portable_simd, strict_provenance)] ++#![feature(exposed_provenance, portable_simd, strict_provenance)] + + use core_simd::simd::{Simd, SimdConstPtr, SimdMutPtr}; + +-- +2.34.1 + diff --git a/compiler/rustc_codegen_cranelift/patches/stdlib-lock.toml b/compiler/rustc_codegen_cranelift/patches/stdlib-lock.toml index 8a690bada0d..8e213f71c3f 100644 --- a/compiler/rustc_codegen_cranelift/patches/stdlib-lock.toml +++ b/compiler/rustc_codegen_cranelift/patches/stdlib-lock.toml @@ -36,15 +36,18 @@ dependencies = [ [[package]] name = "allocator-api2" -version = "0.2.15" +version = "0.2.16" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "56fc6cf8dc8c4158eed8649f9b8b0ea1518eb62b544fe9490d66fa0b349eafe9" +checksum = "0942ffc6dcaadf03badf6e6a2d0228460359d5e34b57ccdc720b7382dfbd5ec5" [[package]] name = "cc" -version = "1.0.79" +version = "1.0.83" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f" +checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0" +dependencies = [ + "libc", +] [[package]] name = "cfg-if" @@ -58,9 +61,9 @@ dependencies = [ [[package]] name = "compiler_builtins" -version = "0.1.103" +version = "0.1.104" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a3b73c3443a5fd2438d7ba4853c64e4c8efc2404a9e28a9234cc2d5eebc6c242" +checksum = "99c3f9035afc33f4358773239573f7d121099856753e1bbd2a6a5207098fc741" dependencies = [ "cc", "rustc-std-workspace-core", @@ -124,9 +127,9 @@ dependencies = [ [[package]] name = "gimli" -version = "0.28.0" +version = "0.28.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6fb8d784f27acf97159b40fc4db5ecd8aa23b9ad5ef69cdd136d3bc80665f0c0" +checksum = "4271d37baee1b8c7e4b708028c57d816cf9d2434acb33a549475f78c181f6253" dependencies = [ "compiler_builtins", "rustc-std-workspace-alloc", @@ -135,9 +138,9 @@ dependencies = [ [[package]] name = "hashbrown" -version = "0.14.0" +version = "0.14.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2c6201b9ff9fd90a5a3bac2e56a830d0caa509576f0e503818ee82c181b3437a" +checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604" dependencies = [ "allocator-api2", "compiler_builtins", @@ -147,9 +150,9 @@ dependencies = [ [[package]] name = "hermit-abi" -version = "0.3.2" +version = "0.3.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "443144c8cdadd93ebf52ddb4056d257f5b52c04d3c804e657d19eb73fc33668b" +checksum = "d77f7ec81a6d05a3abb01ab6eb7590f6083d08449fe5a1c8b1e620283546ccb7" dependencies = [ "compiler_builtins", "rustc-std-workspace-alloc", @@ -167,9 +170,9 @@ dependencies = [ [[package]] name = "memchr" -version = "2.5.0" +version = "2.6.4" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d" +checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167" dependencies = [ "compiler_builtins", "rustc-std-workspace-core", @@ -189,9 +192,9 @@ dependencies = [ [[package]] name = "object" -version = "0.32.0" +version = "0.32.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "77ac5bbd07aea88c60a577a1ce218075ffd59208b2d7ca97adf9bfc5aeb21ebe" +checksum = "9cf5f9dd3933bd50a9e1f149ec995f39ae2c496d31fd772c1fd45ebc27e902b0" dependencies = [ "compiler_builtins", "memchr", @@ -241,9 +244,9 @@ dependencies = [ [[package]] name = "r-efi" -version = "4.2.0" +version = "4.3.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "575fc2d9b3da54adbdfaddf6eca48fec256d977c8630a1750b8991347d1ac911" +checksum = "0e244f96e03a3067f9e521d3167bd42657594cb8588c8d3a2db01545dc1af2e0" dependencies = [ "compiler_builtins", "rustc-std-workspace-core", @@ -402,9 +405,9 @@ dependencies = [ [[package]] name = "unicode-width" -version = "0.1.10" +version = "0.1.11" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b" +checksum = "e51733f11c9c4f72aa0c160008246859e340b00807569a0da0e7a1079b27ba85" dependencies = [ "compiler_builtins", "rustc-std-workspace-core", @@ -419,6 +422,18 @@ dependencies = [ "compiler_builtins", "core", "libc", + "unwinding", +] + +[[package]] +name = "unwinding" +version = "0.2.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "37a19a21a537f635c16c7576f22d0f2f7d63353c1337ad4ce0d8001c7952a25b" +dependencies = [ + "compiler_builtins", + "gimli", + "rustc-std-workspace-core", ] [[package]] diff --git a/compiler/rustc_codegen_cranelift/rust-toolchain b/compiler/rustc_codegen_cranelift/rust-toolchain index 2997816d96c..e1e1760c597 100644 --- a/compiler/rustc_codegen_cranelift/rust-toolchain +++ b/compiler/rustc_codegen_cranelift/rust-toolchain @@ -1,3 +1,3 @@ [toolchain] -channel = "nightly-2023-11-25" +channel = "nightly-2023-12-24" components = ["rust-src", "rustc-dev", "llvm-tools"] diff --git a/compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh b/compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh index a299b6de6b1..636f2875a68 100755 --- a/compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh +++ b/compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh @@ -31,6 +31,7 @@ rm tests/ui/parser/unclosed-delimiter-in-dep.rs # submodule contains //~ERROR # FIXME add needs-unwind to these tests rm -r tests/run-make/libtest-junit rm tests/ui/asm/may_unwind.rs +rm tests/ui/stable-mir-print/basic_function.rs # extra warning about -Cpanic=abort for proc macros rm tests/ui/proc-macro/crt-static.rs @@ -79,6 +80,7 @@ rm -r tests/run-make/codegen-options-parsing rm -r tests/run-make/lto-* rm -r tests/run-make/reproducible-build-2 rm -r tests/run-make/issue-109934-lto-debuginfo +rm -r tests/run-make/no-builtins-lto # optimization tests # ================== diff --git a/compiler/rustc_codegen_cranelift/src/base.rs b/compiler/rustc_codegen_cranelift/src/base.rs index 71557d49ef2..8d3be19839e 100644 --- a/compiler/rustc_codegen_cranelift/src/base.rs +++ b/compiler/rustc_codegen_cranelift/src/base.rs @@ -176,10 +176,10 @@ pub(crate) fn compile_fn( match module.define_function(codegened_func.func_id, context) { Ok(()) => {} Err(ModuleError::Compilation(CodegenError::ImplLimitExceeded)) => { - let handler = rustc_session::EarlyErrorHandler::new( + let early_dcx = rustc_session::EarlyDiagCtxt::new( rustc_session::config::ErrorOutputType::default(), ); - handler.early_error(format!( + early_dcx.early_fatal(format!( "backend implementation limit exceeded while compiling {name}", name = codegened_func.symbol_name )); @@ -353,7 +353,7 @@ fn codegen_fn_body(fx: &mut FunctionCx<'_, '_, '_>, start_block: Block) { fx, rustc_hir::LangItem::PanicBoundsCheck, &[index, len, location], - source_info.span, + Some(source_info.span), ); } AssertKind::MisalignedPointerDereference { ref required, ref found } => { @@ -365,7 +365,7 @@ fn codegen_fn_body(fx: &mut FunctionCx<'_, '_, '_>, start_block: Block) { fx, rustc_hir::LangItem::PanicMisalignedPointerDereference, &[required, found, location], - source_info.span, + Some(source_info.span), ); } _ => { @@ -945,19 +945,19 @@ pub(crate) fn codegen_panic<'tcx>( let msg_len = fx.bcx.ins().iconst(fx.pointer_type, i64::try_from(msg_str.len()).unwrap()); let args = [msg_ptr, msg_len, location]; - codegen_panic_inner(fx, rustc_hir::LangItem::Panic, &args, source_info.span); + codegen_panic_inner(fx, rustc_hir::LangItem::Panic, &args, Some(source_info.span)); } pub(crate) fn codegen_panic_nounwind<'tcx>( fx: &mut FunctionCx<'_, '_, 'tcx>, msg_str: &str, - source_info: mir::SourceInfo, + span: Option<Span>, ) { let msg_ptr = fx.anonymous_str(msg_str); let msg_len = fx.bcx.ins().iconst(fx.pointer_type, i64::try_from(msg_str.len()).unwrap()); let args = [msg_ptr, msg_len]; - codegen_panic_inner(fx, rustc_hir::LangItem::PanicNounwind, &args, source_info.span); + codegen_panic_inner(fx, rustc_hir::LangItem::PanicNounwind, &args, span); } pub(crate) fn codegen_unwind_terminate<'tcx>( @@ -967,16 +967,16 @@ pub(crate) fn codegen_unwind_terminate<'tcx>( ) { let args = []; - codegen_panic_inner(fx, reason.lang_item(), &args, source_info.span); + codegen_panic_inner(fx, reason.lang_item(), &args, Some(source_info.span)); } fn codegen_panic_inner<'tcx>( fx: &mut FunctionCx<'_, '_, 'tcx>, lang_item: rustc_hir::LangItem, args: &[Value], - span: Span, + span: Option<Span>, ) { - let def_id = fx.tcx.require_lang_item(lang_item, Some(span)); + let def_id = fx.tcx.require_lang_item(lang_item, span); let instance = Instance::mono(fx.tcx, def_id).polymorphize(fx.tcx); let symbol_name = fx.tcx.symbol_name(instance).name; diff --git a/compiler/rustc_codegen_cranelift/src/common.rs b/compiler/rustc_codegen_cranelift/src/common.rs index 63562d33508..bd19a7ed059 100644 --- a/compiler/rustc_codegen_cranelift/src/common.rs +++ b/compiler/rustc_codegen_cranelift/src/common.rs @@ -98,11 +98,15 @@ fn clif_pair_type_from_ty<'tcx>( /// Is a pointer to this type a fat ptr? pub(crate) fn has_ptr_meta<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> bool { - let ptr_ty = Ty::new_ptr(tcx, TypeAndMut { ty, mutbl: rustc_hir::Mutability::Not }); - match &tcx.layout_of(ParamEnv::reveal_all().and(ptr_ty)).unwrap().abi { - Abi::Scalar(_) => false, - Abi::ScalarPair(_, _) => true, - abi => unreachable!("Abi of ptr to {:?} is {:?}???", ty, abi), + if ty.is_sized(tcx, ParamEnv::reveal_all()) { + return false; + } + + let tail = tcx.struct_tail_erasing_lifetimes(ty, ParamEnv::reveal_all()); + match tail.kind() { + ty::Foreign(..) => false, + ty::Str | ty::Slice(..) | ty::Dynamic(..) => true, + _ => bug!("unexpected unsized tail: {:?}", tail), } } diff --git a/compiler/rustc_codegen_cranelift/src/concurrency_limiter.rs b/compiler/rustc_codegen_cranelift/src/concurrency_limiter.rs index 978891f2b0d..9678969134a 100644 --- a/compiler/rustc_codegen_cranelift/src/concurrency_limiter.rs +++ b/compiler/rustc_codegen_cranelift/src/concurrency_limiter.rs @@ -46,7 +46,7 @@ impl ConcurrencyLimiter { } } - pub(super) fn acquire(&mut self, handler: &rustc_errors::Handler) -> ConcurrencyLimiterToken { + pub(super) fn acquire(&mut self, dcx: &rustc_errors::DiagCtxt) -> ConcurrencyLimiterToken { let mut state = self.state.lock().unwrap(); loop { state.assert_invariants(); @@ -64,7 +64,7 @@ impl ConcurrencyLimiter { // Make sure to drop the mutex guard first to prevent poisoning the mutex. drop(state); if let Some(err) = err { - handler.fatal(err); + dcx.fatal(err); } else { // The error was already emitted, but compilation continued. Raise a silent // fatal error. diff --git a/compiler/rustc_codegen_cranelift/src/driver/aot.rs b/compiler/rustc_codegen_cranelift/src/driver/aot.rs index 11229dd421e..b3ab533df3d 100644 --- a/compiler/rustc_codegen_cranelift/src/driver/aot.rs +++ b/compiler/rustc_codegen_cranelift/src/driver/aot.rs @@ -422,7 +422,7 @@ pub(crate) fn run_aot( backend_config.clone(), global_asm_config.clone(), cgu.name(), - concurrency_limiter.acquire(tcx.sess.diagnostic()), + concurrency_limiter.acquire(tcx.sess.dcx()), ), module_codegen, Some(rustc_middle::dep_graph::hash_result), diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs index bfeeb117ff5..68126f12424 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs @@ -487,13 +487,12 @@ fn codegen_regular_intrinsic_call<'tcx>( let layout = fx.layout_of(generic_args.type_at(0)); // Note: Can't use is_unsized here as truly unsized types need to take the fixed size // branch - let size = if let Abi::ScalarPair(_, _) = ptr.layout().abi { - let (_ptr, info) = ptr.load_scalar_pair(fx); - let (size, _align) = crate::unsize::size_and_align_of_dst(fx, layout, info); - size + let meta = if let Abi::ScalarPair(_, _) = ptr.layout().abi { + Some(ptr.load_scalar_pair(fx).1) } else { - fx.bcx.ins().iconst(fx.pointer_type, layout.size.bytes() as i64) + None }; + let (size, _align) = crate::unsize::size_and_align_of(fx, layout, meta); ret.write_cvalue(fx, CValue::by_val(size, usize_layout)); } sym::min_align_of_val => { @@ -502,13 +501,12 @@ fn codegen_regular_intrinsic_call<'tcx>( let layout = fx.layout_of(generic_args.type_at(0)); // Note: Can't use is_unsized here as truly unsized types need to take the fixed size // branch - let align = if let Abi::ScalarPair(_, _) = ptr.layout().abi { - let (_ptr, info) = ptr.load_scalar_pair(fx); - let (_size, align) = crate::unsize::size_and_align_of_dst(fx, layout, info); - align + let meta = if let Abi::ScalarPair(_, _) = ptr.layout().abi { + Some(ptr.load_scalar_pair(fx).1) } else { - fx.bcx.ins().iconst(fx.pointer_type, layout.align.abi.bytes() as i64) + None }; + let (_size, align) = crate::unsize::size_and_align_of(fx, layout, meta); ret.write_cvalue(fx, CValue::by_val(align, usize_layout)); } @@ -688,7 +686,7 @@ fn codegen_regular_intrinsic_call<'tcx>( } }) }); - crate::base::codegen_panic_nounwind(fx, &msg_str, source_info); + crate::base::codegen_panic_nounwind(fx, &msg_str, Some(source_info.span)); return; } } diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs index fe4f073f799..d06237f8d91 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs @@ -962,6 +962,37 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>( } } + sym::simd_masked_store => { + intrinsic_args!(fx, args => (mask, ptr, val); intrinsic); + + let (val_lane_count, val_lane_ty) = val.layout().ty.simd_size_and_type(fx.tcx); + let (mask_lane_count, _mask_lane_ty) = mask.layout().ty.simd_size_and_type(fx.tcx); + assert_eq!(val_lane_count, mask_lane_count); + let lane_clif_ty = fx.clif_type(val_lane_ty).unwrap(); + let ptr_val = ptr.load_scalar(fx); + + for lane_idx in 0..val_lane_count { + let val_lane = val.value_lane(fx, lane_idx).load_scalar(fx); + let mask_lane = mask.value_lane(fx, lane_idx).load_scalar(fx); + + let if_enabled = fx.bcx.create_block(); + let next = fx.bcx.create_block(); + + fx.bcx.ins().brif(mask_lane, if_enabled, &[], next, &[]); + fx.bcx.seal_block(if_enabled); + + fx.bcx.switch_to_block(if_enabled); + let offset = lane_idx as i32 * lane_clif_ty.bytes() as i32; + fx.bcx.ins().store(MemFlags::trusted(), val_lane, ptr_val, Offset32::new(offset)); + fx.bcx.ins().jump(next, &[]); + + fx.bcx.seal_block(next); + fx.bcx.switch_to_block(next); + + fx.bcx.ins().nop(); + } + } + sym::simd_gather => { intrinsic_args!(fx, args => (val, ptr, mask); intrinsic); @@ -1057,7 +1088,7 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>( } sym::simd_scatter => { - intrinsic_args!(fx, args => (mask, ptr, val); intrinsic); + intrinsic_args!(fx, args => (val, ptr, mask); intrinsic); let (val_lane_count, _val_lane_ty) = val.layout().ty.simd_size_and_type(fx.tcx); let (ptr_lane_count, _ptr_lane_ty) = ptr.layout().ty.simd_size_and_type(fx.tcx); diff --git a/compiler/rustc_codegen_cranelift/src/lib.rs b/compiler/rustc_codegen_cranelift/src/lib.rs index 148193b5a97..d0ce209be44 100644 --- a/compiler/rustc_codegen_cranelift/src/lib.rs +++ b/compiler/rustc_codegen_cranelift/src/lib.rs @@ -1,6 +1,6 @@ -#![cfg_attr(all(doc, not(bootstrap)), allow(internal_features))] -#![cfg_attr(all(doc, not(bootstrap)), feature(rustdoc_internals))] -#![cfg_attr(all(doc, not(bootstrap)), doc(rust_logo))] +#![cfg_attr(doc, allow(internal_features))] +#![cfg_attr(doc, feature(rustdoc_internals))] +#![cfg_attr(doc, doc(rust_logo))] #![feature(rustc_private)] // Note: please avoid adding other feature gates where possible #![warn(rust_2018_idioms)] diff --git a/compiler/rustc_codegen_cranelift/src/pretty_clif.rs b/compiler/rustc_codegen_cranelift/src/pretty_clif.rs index 02c0dcb8b1b..196418023d9 100644 --- a/compiler/rustc_codegen_cranelift/src/pretty_clif.rs +++ b/compiler/rustc_codegen_cranelift/src/pretty_clif.rs @@ -231,9 +231,8 @@ pub(crate) fn write_ir_file( let res = std::fs::File::create(clif_file_name).and_then(|mut file| write(&mut file)); if let Err(err) = res { // Using early_warn as no Session is available here - let handler = rustc_session::EarlyErrorHandler::new( - rustc_session::config::ErrorOutputType::default(), - ); + let handler = + rustc_session::EarlyDiagCtxt::new(rustc_session::config::ErrorOutputType::default()); handler.early_warn(format!("error writing ir file: {}", err)); } } diff --git a/compiler/rustc_codegen_cranelift/src/unsize.rs b/compiler/rustc_codegen_cranelift/src/unsize.rs index c6133f2b35c..f777e11371f 100644 --- a/compiler/rustc_codegen_cranelift/src/unsize.rs +++ b/compiler/rustc_codegen_cranelift/src/unsize.rs @@ -2,6 +2,9 @@ //! //! [`PointerCoercion::Unsize`]: `rustc_middle::ty::adjustment::PointerCoercion::Unsize` +use rustc_middle::ty::print::{with_no_trimmed_paths, with_no_visible_paths}; + +use crate::base::codegen_panic_nounwind; use crate::prelude::*; // Adapted from https://github.com/rust-lang/rust/blob/2a663555ddf36f6b041445894a8c175cd1bc718c/src/librustc_codegen_ssa/base.rs#L159-L307 @@ -187,63 +190,113 @@ pub(crate) fn coerce_dyn_star<'tcx>( // Adapted from https://github.com/rust-lang/rust/blob/2a663555ddf36f6b041445894a8c175cd1bc718c/src/librustc_codegen_ssa/glue.rs -pub(crate) fn size_and_align_of_dst<'tcx>( +pub(crate) fn size_and_align_of<'tcx>( fx: &mut FunctionCx<'_, '_, 'tcx>, layout: TyAndLayout<'tcx>, - info: Value, + info: Option<Value>, ) -> (Value, Value) { - assert!(layout.is_unsized() || layout.abi == Abi::Uninhabited); - match layout.ty.kind() { + if layout.is_sized() { + return ( + fx.bcx.ins().iconst(fx.pointer_type, layout.size.bytes() as i64), + fx.bcx.ins().iconst(fx.pointer_type, layout.align.abi.bytes() as i64), + ); + } + + let ty = layout.ty; + match ty.kind() { ty::Dynamic(..) => { // load size/align from vtable - (crate::vtable::size_of_obj(fx, info), crate::vtable::min_align_of_obj(fx, info)) + ( + crate::vtable::size_of_obj(fx, info.unwrap()), + crate::vtable::min_align_of_obj(fx, info.unwrap()), + ) } ty::Slice(_) | ty::Str => { let unit = layout.field(fx, 0); // The info in this case is the length of the str, so the size is that // times the unit size. ( - fx.bcx.ins().imul_imm(info, unit.size.bytes() as i64), + fx.bcx.ins().imul_imm(info.unwrap(), unit.size.bytes() as i64), fx.bcx.ins().iconst(fx.pointer_type, unit.align.abi.bytes() as i64), ) } - _ => { + ty::Foreign(_) => { + let trap_block = fx.bcx.create_block(); + let true_ = fx.bcx.ins().iconst(types::I8, 1); + let next_block = fx.bcx.create_block(); + fx.bcx.ins().brif(true_, trap_block, &[], next_block, &[]); + fx.bcx.seal_block(trap_block); + fx.bcx.seal_block(next_block); + fx.bcx.switch_to_block(trap_block); + + // `extern` type. We cannot compute the size, so panic. + let msg_str = with_no_visible_paths!({ + with_no_trimmed_paths!({ + format!("attempted to compute the size or alignment of extern type `{ty}`") + }) + }); + + codegen_panic_nounwind(fx, &msg_str, None); + + fx.bcx.switch_to_block(next_block); + + // This function does not return so we can now return whatever we want. + let size = fx.bcx.ins().iconst(fx.pointer_type, 42); + let align = fx.bcx.ins().iconst(fx.pointer_type, 42); + (size, align) + } + ty::Adt(..) | ty::Tuple(..) => { // First get the size of all statically known fields. // Don't use size_of because it also rounds up to alignment, which we // want to avoid, as the unsized field's alignment could be smaller. assert!(!layout.ty.is_simd()); let i = layout.fields.count() - 1; - let sized_size = layout.fields.offset(i).bytes(); + let unsized_offset_unadjusted = layout.fields.offset(i).bytes(); + let unsized_offset_unadjusted = + fx.bcx.ins().iconst(fx.pointer_type, unsized_offset_unadjusted as i64); let sized_align = layout.align.abi.bytes(); let sized_align = fx.bcx.ins().iconst(fx.pointer_type, sized_align as i64); // Recurse to get the size of the dynamically sized field (must be // the last field). let field_layout = layout.field(fx, i); - let (unsized_size, mut unsized_align) = size_and_align_of_dst(fx, field_layout, info); - - // FIXME (#26403, #27023): We should be adding padding - // to `sized_size` (to accommodate the `unsized_align` - // required of the unsized field that follows) before - // summing it with `sized_size`. (Note that since #26403 - // is unfixed, we do not yet add the necessary padding - // here. But this is where the add would go.) - - // Return the sum of sizes and max of aligns. - let size = fx.bcx.ins().iadd_imm(unsized_size, sized_size as i64); - - // Packed types ignore the alignment of their fields. - if let ty::Adt(def, _) = layout.ty.kind() { - if def.repr().packed() { - unsized_align = sized_align; + let (unsized_size, mut unsized_align) = size_and_align_of(fx, field_layout, info); + + // # First compute the dynamic alignment + + // For packed types, we need to cap the alignment. + if let ty::Adt(def, _) = ty.kind() { + if let Some(packed) = def.repr().pack { + if packed.bytes() == 1 { + // We know this will be capped to 1. + unsized_align = fx.bcx.ins().iconst(fx.pointer_type, 1); + } else { + // We have to dynamically compute `min(unsized_align, packed)`. + let packed = fx.bcx.ins().iconst(fx.pointer_type, packed.bytes() as i64); + let cmp = fx.bcx.ins().icmp(IntCC::UnsignedLessThan, unsized_align, packed); + unsized_align = fx.bcx.ins().select(cmp, unsized_align, packed); + } } } // Choose max of two known alignments (combined value must // be aligned according to more restrictive of the two). let cmp = fx.bcx.ins().icmp(IntCC::UnsignedGreaterThan, sized_align, unsized_align); - let align = fx.bcx.ins().select(cmp, sized_align, unsized_align); + let full_align = fx.bcx.ins().select(cmp, sized_align, unsized_align); + + // # Then compute the dynamic size + + // The full formula for the size would be: + // let unsized_offset_adjusted = unsized_offset_unadjusted.align_to(unsized_align); + // let full_size = (unsized_offset_adjusted + unsized_size).align_to(full_align); + // However, `unsized_size` is a multiple of `unsized_align`. + // Therefore, we can equivalently do the `align_to(unsized_align)` *after* adding `unsized_size`: + // let full_size = (unsized_offset_unadjusted + unsized_size).align_to(unsized_align).align_to(full_align); + // Furthermore, `align >= unsized_align`, and therefore we only need to do: + // let full_size = (unsized_offset_unadjusted + unsized_size).align_to(full_align); + + let full_size = fx.bcx.ins().iadd(unsized_offset_unadjusted, unsized_size); // Issue #27023: must add any necessary padding to `size` // (to make it a multiple of `align`) before returning it. @@ -255,12 +308,13 @@ pub(crate) fn size_and_align_of_dst<'tcx>( // emulated via the semi-standard fast bit trick: // // `(size + (align-1)) & -align` - let addend = fx.bcx.ins().iadd_imm(align, -1); - let add = fx.bcx.ins().iadd(size, addend); - let neg = fx.bcx.ins().ineg(align); - let size = fx.bcx.ins().band(add, neg); + let addend = fx.bcx.ins().iadd_imm(full_align, -1); + let add = fx.bcx.ins().iadd(full_size, addend); + let neg = fx.bcx.ins().ineg(full_align); + let full_size = fx.bcx.ins().band(add, neg); - (size, align) + (full_size, full_align) } + _ => bug!("size_and_align_of_dst: {ty} not supported"), } } diff --git a/compiler/rustc_codegen_cranelift/src/value_and_place.rs b/compiler/rustc_codegen_cranelift/src/value_and_place.rs index f52f59716a8..567a5669d49 100644 --- a/compiler/rustc_codegen_cranelift/src/value_and_place.rs +++ b/compiler/rustc_codegen_cranelift/src/value_and_place.rs @@ -20,34 +20,36 @@ fn codegen_field<'tcx>( (base.offset_i64(fx, i64::try_from(field_offset.bytes()).unwrap()), field_layout) }; - if let Some(extra) = extra { - if field_layout.is_sized() { - return simple(fx); - } - match field_layout.ty.kind() { - ty::Slice(..) | ty::Str | ty::Foreign(..) => simple(fx), - ty::Adt(def, _) if def.repr().packed() => { - assert_eq!(layout.align.abi.bytes(), 1); - simple(fx) - } - _ => { - // We have to align the offset for DST's - let unaligned_offset = field_offset.bytes(); - let (_, unsized_align) = - crate::unsize::size_and_align_of_dst(fx, field_layout, extra); + if field_layout.is_sized() { + return simple(fx); + } + match field_layout.ty.kind() { + ty::Slice(..) | ty::Str => simple(fx), + _ => { + let unaligned_offset = field_offset.bytes(); - let one = fx.bcx.ins().iconst(fx.pointer_type, 1); - let align_sub_1 = fx.bcx.ins().isub(unsized_align, one); - let and_lhs = fx.bcx.ins().iadd_imm(align_sub_1, unaligned_offset as i64); - let zero = fx.bcx.ins().iconst(fx.pointer_type, 0); - let and_rhs = fx.bcx.ins().isub(zero, unsized_align); - let offset = fx.bcx.ins().band(and_lhs, and_rhs); + // Get the alignment of the field + let (_, mut unsized_align) = crate::unsize::size_and_align_of(fx, field_layout, extra); - (base.offset_value(fx, offset), field_layout) + // For packed types, we need to cap alignment. + if let ty::Adt(def, _) = layout.ty.kind() { + if let Some(packed) = def.repr().pack { + let packed = fx.bcx.ins().iconst(fx.pointer_type, packed.bytes() as i64); + let cmp = fx.bcx.ins().icmp(IntCC::UnsignedLessThan, unsized_align, packed); + unsized_align = fx.bcx.ins().select(cmp, unsized_align, packed); + } } + + // Bump the unaligned offset up to the appropriate alignment + let one = fx.bcx.ins().iconst(fx.pointer_type, 1); + let align_sub_1 = fx.bcx.ins().isub(unsized_align, one); + let and_lhs = fx.bcx.ins().iadd_imm(align_sub_1, unaligned_offset as i64); + let zero = fx.bcx.ins().iconst(fx.pointer_type, 0); + let and_rhs = fx.bcx.ins().isub(zero, unsized_align); + let offset = fx.bcx.ins().band(and_lhs, and_rhs); + + (base.offset_value(fx, offset), field_layout) } - } else { - simple(fx) } } @@ -731,13 +733,8 @@ impl<'tcx> CPlace<'tcx> { }; let (field_ptr, field_layout) = codegen_field(fx, base, extra, layout, field); - if field_layout.is_unsized() { - if let ty::Foreign(_) = field_layout.ty.kind() { - assert!(extra.is_none()); - CPlace::for_ptr(field_ptr, field_layout) - } else { - CPlace::for_ptr_with_extra(field_ptr, extra.unwrap(), field_layout) - } + if has_ptr_meta(fx.tcx, field_layout.ty) { + CPlace::for_ptr_with_extra(field_ptr, extra.unwrap(), field_layout) } else { CPlace::for_ptr(field_ptr, field_layout) } diff --git a/compiler/rustc_codegen_cranelift/y.cmd b/compiler/rustc_codegen_cranelift/y.cmd new file mode 100644 index 00000000000..e9b688645a4 --- /dev/null +++ b/compiler/rustc_codegen_cranelift/y.cmd @@ -0,0 +1,9 @@ +@echo off +echo [BUILD] build system >&2 +mkdir build 2>nul +rustc build_system/main.rs -o build\y.exe -Cdebuginfo=1 --edition 2021 || goto :error +build\y.exe %* || goto :error +goto :EOF + +:error +exit /b diff --git a/compiler/rustc_codegen_cranelift/y.ps1 b/compiler/rustc_codegen_cranelift/y.ps1 new file mode 100644 index 00000000000..02ef0fcbd50 --- /dev/null +++ b/compiler/rustc_codegen_cranelift/y.ps1 @@ -0,0 +1,12 @@ +$ErrorActionPreference = "Stop" + +$host.ui.WriteErrorLine("[BUILD] build system") +New-Item -ItemType Directory -Force -Path build | Out-Null +& rustc build_system/main.rs -o build\y.exe -Cdebuginfo=1 --edition 2021 +if ($LASTEXITCODE -ne 0) { + exit $LASTEXITCODE +} +& build\y.exe $args +if ($LASTEXITCODE -ne 0) { + exit $LASTEXITCODE +} diff --git a/compiler/rustc_codegen_gcc/src/back/lto.rs b/compiler/rustc_codegen_gcc/src/back/lto.rs index 529454b119e..c21b7686823 100644 --- a/compiler/rustc_codegen_gcc/src/back/lto.rs +++ b/compiler/rustc_codegen_gcc/src/back/lto.rs @@ -30,7 +30,7 @@ use rustc_codegen_ssa::back::write::{CodegenContext, FatLtoInput}; use rustc_codegen_ssa::traits::*; use rustc_codegen_ssa::{looks_like_rust_object_file, ModuleCodegen, ModuleKind}; use rustc_data_structures::memmap::Mmap; -use rustc_errors::{FatalError, Handler}; +use rustc_errors::{FatalError, DiagCtxt}; use rustc_hir::def_id::LOCAL_CRATE; use rustc_middle::dep_graph::WorkProduct; use rustc_middle::middle::exported_symbols::{SymbolExportInfo, SymbolExportLevel}; @@ -61,7 +61,7 @@ struct LtoData { tmp_path: TempDir, } -fn prepare_lto(cgcx: &CodegenContext<GccCodegenBackend>, diag_handler: &Handler) -> Result<LtoData, FatalError> { +fn prepare_lto(cgcx: &CodegenContext<GccCodegenBackend>, dcx: &DiagCtxt) -> Result<LtoData, FatalError> { let export_threshold = match cgcx.lto { // We're just doing LTO for our one crate Lto::ThinLocal => SymbolExportLevel::Rust, @@ -106,18 +106,18 @@ fn prepare_lto(cgcx: &CodegenContext<GccCodegenBackend>, diag_handler: &Handler) // Make sure we actually can run LTO for crate_type in cgcx.crate_types.iter() { if !crate_type_allows_lto(*crate_type) { - diag_handler.emit_err(LtoDisallowed); + dcx.emit_err(LtoDisallowed); return Err(FatalError); } else if *crate_type == CrateType::Dylib { if !cgcx.opts.unstable_opts.dylib_lto { - diag_handler.emit_err(LtoDylib); + dcx.emit_err(LtoDylib); return Err(FatalError); } } } if cgcx.opts.cg.prefer_dynamic && !cgcx.opts.unstable_opts.dylib_lto { - diag_handler.emit_err(DynamicLinkingWithLTO); + dcx.emit_err(DynamicLinkingWithLTO); return Err(FatalError); } @@ -154,7 +154,7 @@ fn prepare_lto(cgcx: &CodegenContext<GccCodegenBackend>, diag_handler: &Handler) upstream_modules.push((module, CString::new(name).unwrap())); } Err(e) => { - diag_handler.emit_err(e); + dcx.emit_err(e); return Err(FatalError); } } @@ -183,16 +183,16 @@ pub(crate) fn run_fat( modules: Vec<FatLtoInput<GccCodegenBackend>>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, ) -> Result<LtoModuleCodegen<GccCodegenBackend>, FatalError> { - let diag_handler = cgcx.create_diag_handler(); - let lto_data = prepare_lto(cgcx, &diag_handler)?; + let dcx = cgcx.create_dcx(); + let lto_data = prepare_lto(cgcx, &dcx)?; /*let symbols_below_threshold = lto_data.symbols_below_threshold.iter().map(|c| c.as_ptr()).collect::<Vec<_>>();*/ - fat_lto(cgcx, &diag_handler, modules, cached_modules, lto_data.upstream_modules, lto_data.tmp_path, + fat_lto(cgcx, &dcx, modules, cached_modules, lto_data.upstream_modules, lto_data.tmp_path, //&symbols_below_threshold, ) } -fn fat_lto(cgcx: &CodegenContext<GccCodegenBackend>, _diag_handler: &Handler, modules: Vec<FatLtoInput<GccCodegenBackend>>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, mut serialized_modules: Vec<(SerializedModule<ModuleBuffer>, CString)>, tmp_path: TempDir, +fn fat_lto(cgcx: &CodegenContext<GccCodegenBackend>, _dcx: &DiagCtxt, modules: Vec<FatLtoInput<GccCodegenBackend>>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, mut serialized_modules: Vec<(SerializedModule<ModuleBuffer>, CString)>, tmp_path: TempDir, //symbols_below_threshold: &[*const libc::c_char], ) -> Result<LtoModuleCodegen<GccCodegenBackend>, FatalError> { let _timer = cgcx.prof.generic_activity("GCC_fat_lto_build_monolithic_module"); @@ -257,7 +257,7 @@ fn fat_lto(cgcx: &CodegenContext<GccCodegenBackend>, _diag_handler: &Handler, mo let (buffer, name) = serialized_modules.remove(0); info!("no in-memory regular modules to choose from, parsing {:?}", name); ModuleCodegen { - module_llvm: GccContext::parse(cgcx, &name, buffer.data(), diag_handler)?, + module_llvm: GccContext::parse(cgcx, &name, buffer.data(), dcx)?, name: name.into_string().unwrap(), kind: ModuleKind::Regular, }*/ diff --git a/compiler/rustc_codegen_gcc/src/back/write.rs b/compiler/rustc_codegen_gcc/src/back/write.rs index 04772d7707a..2f8a54f529c 100644 --- a/compiler/rustc_codegen_gcc/src/back/write.rs +++ b/compiler/rustc_codegen_gcc/src/back/write.rs @@ -4,7 +4,7 @@ use gccjit::OutputKind; use rustc_codegen_ssa::{CompiledModule, ModuleCodegen}; use rustc_codegen_ssa::back::link::ensure_removed; use rustc_codegen_ssa::back::write::{BitcodeSection, CodegenContext, EmitObj, ModuleConfig}; -use rustc_errors::Handler; +use rustc_errors::DiagCtxt; use rustc_fs_util::link_or_copy; use rustc_session::config::OutputType; use rustc_span::fatal_error::FatalError; @@ -13,7 +13,7 @@ use rustc_target::spec::SplitDebuginfo; use crate::{GccCodegenBackend, GccContext}; use crate::errors::CopyBitcode; -pub(crate) unsafe fn codegen(cgcx: &CodegenContext<GccCodegenBackend>, diag_handler: &Handler, module: ModuleCodegen<GccContext>, config: &ModuleConfig) -> Result<CompiledModule, FatalError> { +pub(crate) unsafe fn codegen(cgcx: &CodegenContext<GccCodegenBackend>, dcx: &DiagCtxt, module: ModuleCodegen<GccContext>, config: &ModuleConfig) -> Result<CompiledModule, FatalError> { let _timer = cgcx.prof.generic_activity_with_arg("GCC_module_codegen", &*module.name); { let context = &module.module_llvm.context; @@ -127,12 +127,12 @@ pub(crate) unsafe fn codegen(cgcx: &CodegenContext<GccCodegenBackend>, diag_hand EmitObj::Bitcode => { debug!("copying bitcode {:?} to obj {:?}", bc_out, obj_out); if let Err(err) = link_or_copy(&bc_out, &obj_out) { - diag_handler.emit_err(CopyBitcode { err }); + dcx.emit_err(CopyBitcode { err }); } if !config.emit_bc { debug!("removing_bitcode {:?}", bc_out); - ensure_removed(diag_handler, &bc_out); + ensure_removed(dcx, &bc_out); } } @@ -148,7 +148,7 @@ pub(crate) unsafe fn codegen(cgcx: &CodegenContext<GccCodegenBackend>, diag_hand )) } -pub(crate) fn link(_cgcx: &CodegenContext<GccCodegenBackend>, _diag_handler: &Handler, mut _modules: Vec<ModuleCodegen<GccContext>>) -> Result<ModuleCodegen<GccContext>, FatalError> { +pub(crate) fn link(_cgcx: &CodegenContext<GccCodegenBackend>, _dcx: &DiagCtxt, mut _modules: Vec<ModuleCodegen<GccContext>>) -> Result<ModuleCodegen<GccContext>, FatalError> { unimplemented!(); } diff --git a/compiler/rustc_codegen_gcc/src/common.rs b/compiler/rustc_codegen_gcc/src/common.rs index b7ddc410315..c6edd52d1e4 100644 --- a/compiler/rustc_codegen_gcc/src/common.rs +++ b/compiler/rustc_codegen_gcc/src/common.rs @@ -377,9 +377,6 @@ pub trait TypeReflection<'gcc, 'tcx> { fn is_i128(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool; fn is_u128(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool; - fn is_f32(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool; - fn is_f64(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool; - fn is_vector(&self) -> bool; } @@ -464,14 +461,6 @@ impl<'gcc, 'tcx> TypeReflection<'gcc, 'tcx> for Type<'gcc> { self.unqualified() == cx.u128_type.unqualified() } - fn is_f32(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool { - self.unqualified() == cx.context.new_type::<f32>() - } - - fn is_f64(&self, cx: &CodegenCx<'gcc, 'tcx>) -> bool { - self.unqualified() == cx.context.new_type::<f64>() - } - fn is_vector(&self) -> bool { let mut typ = self.clone(); loop { diff --git a/compiler/rustc_codegen_gcc/src/context.rs b/compiler/rustc_codegen_gcc/src/context.rs index 893cad05161..ab9c703db37 100644 --- a/compiler/rustc_codegen_gcc/src/context.rs +++ b/compiler/rustc_codegen_gcc/src/context.rs @@ -22,12 +22,6 @@ use rustc_target::spec::{HasTargetSpec, Target, TlsModel}; use crate::callee::get_fn; use crate::common::SignType; -#[derive(Clone)] -pub struct FuncSig<'gcc> { - pub params: Vec<Type<'gcc>>, - pub return_type: Type<'gcc>, -} - pub struct CodegenCx<'gcc, 'tcx> { pub check_overflow: bool, pub codegen_unit: &'tcx CodegenUnit<'tcx>, diff --git a/compiler/rustc_codegen_gcc/src/errors.rs b/compiler/rustc_codegen_gcc/src/errors.rs index 5fc4b12d7e6..1b1ed0b411c 100644 --- a/compiler/rustc_codegen_gcc/src/errors.rs +++ b/compiler/rustc_codegen_gcc/src/errors.rs @@ -1,5 +1,6 @@ use rustc_errors::{ - DiagnosticArgValue, DiagnosticBuilder, ErrorGuaranteed, Handler, IntoDiagnostic, IntoDiagnosticArg, + DiagCtxt, DiagnosticArgValue, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, + IntoDiagnosticArg, Level, }; use rustc_macros::{Diagnostic, Subdiagnostic}; use rustc_span::Span; @@ -110,9 +111,13 @@ pub(crate) struct TargetFeatureDisableOrEnable<'a> { #[help(codegen_gcc_missing_features)] pub(crate) struct MissingFeatures; -impl IntoDiagnostic<'_, ErrorGuaranteed> for TargetFeatureDisableOrEnable<'_> { - fn into_diagnostic(self, handler: &'_ Handler) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::codegen_gcc_target_feature_disable_or_enable); +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for TargetFeatureDisableOrEnable<'_> { + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = DiagnosticBuilder::new( + dcx, + level, + fluent::codegen_gcc_target_feature_disable_or_enable + ); if let Some(span) = self.span { diag.set_span(span); }; diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs index 0ececc5dda0..1f3f909d8b4 100644 --- a/compiler/rustc_codegen_gcc/src/lib.rs +++ b/compiler/rustc_codegen_gcc/src/lib.rs @@ -100,7 +100,7 @@ use rustc_codegen_ssa::back::lto::{LtoModuleCodegen, SerializedModule, ThinModul use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::sync::IntoDynSyncSend; use rustc_codegen_ssa::traits::{CodegenBackend, ExtraBackendMethods, ThinBufferMethods, WriteBackendMethods}; -use rustc_errors::{ErrorGuaranteed, Handler}; +use rustc_errors::{ErrorGuaranteed, DiagCtxt}; use rustc_metadata::EncodedMetadata; use rustc_middle::dep_graph::{WorkProduct, WorkProductId}; use rustc_middle::util::Providers; @@ -330,7 +330,7 @@ impl WriteBackendMethods for GccCodegenBackend { unimplemented!() } - unsafe fn optimize(_cgcx: &CodegenContext<Self>, _diag_handler: &Handler, module: &ModuleCodegen<Self::Module>, config: &ModuleConfig) -> Result<(), FatalError> { + unsafe fn optimize(_cgcx: &CodegenContext<Self>, _dcx: &DiagCtxt, module: &ModuleCodegen<Self::Module>, config: &ModuleConfig) -> Result<(), FatalError> { module.module_llvm.context.set_optimization_level(to_gcc_opt_level(config.opt_level)); Ok(()) } @@ -344,8 +344,8 @@ impl WriteBackendMethods for GccCodegenBackend { unimplemented!(); } - unsafe fn codegen(cgcx: &CodegenContext<Self>, diag_handler: &Handler, module: ModuleCodegen<Self::Module>, config: &ModuleConfig) -> Result<CompiledModule, FatalError> { - back::write::codegen(cgcx, diag_handler, module, config) + unsafe fn codegen(cgcx: &CodegenContext<Self>, dcx: &DiagCtxt, module: ModuleCodegen<Self::Module>, config: &ModuleConfig) -> Result<CompiledModule, FatalError> { + back::write::codegen(cgcx, dcx, module, config) } fn prepare_thin(_module: ModuleCodegen<Self::Module>) -> (String, Self::ThinBuffer) { @@ -356,8 +356,8 @@ impl WriteBackendMethods for GccCodegenBackend { unimplemented!(); } - fn run_link(cgcx: &CodegenContext<Self>, diag_handler: &Handler, modules: Vec<ModuleCodegen<Self::Module>>) -> Result<ModuleCodegen<Self::Module>, FatalError> { - back::write::link(cgcx, diag_handler, modules) + fn run_link(cgcx: &CodegenContext<Self>, dcx: &DiagCtxt, modules: Vec<ModuleCodegen<Self::Module>>) -> Result<ModuleCodegen<Self::Module>, FatalError> { + back::write::link(cgcx, dcx, modules) } } diff --git a/compiler/rustc_codegen_llvm/src/back/lto.rs b/compiler/rustc_codegen_llvm/src/back/lto.rs index c9e109a5d23..e9e8ade09b7 100644 --- a/compiler/rustc_codegen_llvm/src/back/lto.rs +++ b/compiler/rustc_codegen_llvm/src/back/lto.rs @@ -14,7 +14,7 @@ use rustc_codegen_ssa::traits::*; use rustc_codegen_ssa::{looks_like_rust_object_file, ModuleCodegen, ModuleKind}; use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::memmap::Mmap; -use rustc_errors::{FatalError, Handler}; +use rustc_errors::{DiagCtxt, FatalError}; use rustc_hir::def_id::LOCAL_CRATE; use rustc_middle::bug; use rustc_middle::dep_graph::WorkProduct; @@ -47,7 +47,7 @@ pub fn crate_type_allows_lto(crate_type: CrateType) -> bool { fn prepare_lto( cgcx: &CodegenContext<LlvmCodegenBackend>, - diag_handler: &Handler, + dcx: &DiagCtxt, ) -> Result<(Vec<CString>, Vec<(SerializedModule<ModuleBuffer>, CString)>), FatalError> { let export_threshold = match cgcx.lto { // We're just doing LTO for our one crate @@ -84,23 +84,23 @@ fn prepare_lto( // Make sure we actually can run LTO for crate_type in cgcx.crate_types.iter() { if !crate_type_allows_lto(*crate_type) { - diag_handler.emit_err(LtoDisallowed); + dcx.emit_err(LtoDisallowed); return Err(FatalError); } else if *crate_type == CrateType::Dylib { if !cgcx.opts.unstable_opts.dylib_lto { - diag_handler.emit_err(LtoDylib); + dcx.emit_err(LtoDylib); return Err(FatalError); } } else if *crate_type == CrateType::ProcMacro { if !cgcx.opts.unstable_opts.dylib_lto { - diag_handler.emit_err(LtoProcMacro); + dcx.emit_err(LtoProcMacro); return Err(FatalError); } } } if cgcx.opts.cg.prefer_dynamic && !cgcx.opts.unstable_opts.dylib_lto { - diag_handler.emit_err(DynamicLinkingWithLTO); + dcx.emit_err(DynamicLinkingWithLTO); return Err(FatalError); } @@ -138,7 +138,7 @@ fn prepare_lto( upstream_modules.push((module, CString::new(name).unwrap())); } Err(e) => { - diag_handler.emit_err(e); + dcx.emit_err(e); return Err(FatalError); } } @@ -200,18 +200,11 @@ pub(crate) fn run_fat( modules: Vec<FatLtoInput<LlvmCodegenBackend>>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, ) -> Result<LtoModuleCodegen<LlvmCodegenBackend>, FatalError> { - let diag_handler = cgcx.create_diag_handler(); - let (symbols_below_threshold, upstream_modules) = prepare_lto(cgcx, &diag_handler)?; + let dcx = cgcx.create_dcx(); + let (symbols_below_threshold, upstream_modules) = prepare_lto(cgcx, &dcx)?; let symbols_below_threshold = symbols_below_threshold.iter().map(|c| c.as_ptr()).collect::<Vec<_>>(); - fat_lto( - cgcx, - &diag_handler, - modules, - cached_modules, - upstream_modules, - &symbols_below_threshold, - ) + fat_lto(cgcx, &dcx, modules, cached_modules, upstream_modules, &symbols_below_threshold) } /// Performs thin LTO by performing necessary global analysis and returning two @@ -222,8 +215,8 @@ pub(crate) fn run_thin( modules: Vec<(String, ThinBuffer)>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, ) -> Result<(Vec<LtoModuleCodegen<LlvmCodegenBackend>>, Vec<WorkProduct>), FatalError> { - let diag_handler = cgcx.create_diag_handler(); - let (symbols_below_threshold, upstream_modules) = prepare_lto(cgcx, &diag_handler)?; + let dcx = cgcx.create_dcx(); + let (symbols_below_threshold, upstream_modules) = prepare_lto(cgcx, &dcx)?; let symbols_below_threshold = symbols_below_threshold.iter().map(|c| c.as_ptr()).collect::<Vec<_>>(); if cgcx.opts.cg.linker_plugin_lto.enabled() { @@ -232,14 +225,7 @@ pub(crate) fn run_thin( is deferred to the linker" ); } - thin_lto( - cgcx, - &diag_handler, - modules, - upstream_modules, - cached_modules, - &symbols_below_threshold, - ) + thin_lto(cgcx, &dcx, modules, upstream_modules, cached_modules, &symbols_below_threshold) } pub(crate) fn prepare_thin(module: ModuleCodegen<ModuleLlvm>) -> (String, ThinBuffer) { @@ -250,7 +236,7 @@ pub(crate) fn prepare_thin(module: ModuleCodegen<ModuleLlvm>) -> (String, ThinBu fn fat_lto( cgcx: &CodegenContext<LlvmCodegenBackend>, - diag_handler: &Handler, + dcx: &DiagCtxt, modules: Vec<FatLtoInput<LlvmCodegenBackend>>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, mut serialized_modules: Vec<(SerializedModule<ModuleBuffer>, CString)>, @@ -316,7 +302,7 @@ fn fat_lto( let (buffer, name) = serialized_modules.remove(0); info!("no in-memory regular modules to choose from, parsing {:?}", name); ModuleCodegen { - module_llvm: ModuleLlvm::parse(cgcx, &name, buffer.data(), diag_handler)?, + module_llvm: ModuleLlvm::parse(cgcx, &name, buffer.data(), dcx)?, name: name.into_string().unwrap(), kind: ModuleKind::Regular, } @@ -333,13 +319,8 @@ fn fat_lto( // The linking steps below may produce errors and diagnostics within LLVM // which we'd like to handle and print, so set up our diagnostic handlers // (which get unregistered when they go out of scope below). - let _handler = DiagnosticHandlers::new( - cgcx, - diag_handler, - llcx, - &module, - CodegenDiagnosticsStage::LTO, - ); + let _handler = + DiagnosticHandlers::new(cgcx, dcx, llcx, &module, CodegenDiagnosticsStage::LTO); // For all other modules we codegened we'll need to link them into our own // bitcode. All modules were codegened in their own LLVM context, however, @@ -367,9 +348,7 @@ fn fat_lto( }); info!("linking {:?}", name); let data = bc_decoded.data(); - linker - .add(data) - .map_err(|()| write::llvm_err(diag_handler, LlvmError::LoadBitcode { name }))?; + linker.add(data).map_err(|()| write::llvm_err(dcx, LlvmError::LoadBitcode { name }))?; serialized_bitcode.push(bc_decoded); } drop(linker); @@ -452,7 +431,7 @@ impl Drop for Linker<'_> { /// they all go out of scope. fn thin_lto( cgcx: &CodegenContext<LlvmCodegenBackend>, - diag_handler: &Handler, + dcx: &DiagCtxt, modules: Vec<(String, ThinBuffer)>, serialized_modules: Vec<(SerializedModule<ModuleBuffer>, CString)>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, @@ -527,7 +506,7 @@ fn thin_lto( symbols_below_threshold.as_ptr(), symbols_below_threshold.len() as u32, ) - .ok_or_else(|| write::llvm_err(diag_handler, LlvmError::PrepareThinLtoContext))?; + .ok_or_else(|| write::llvm_err(dcx, LlvmError::PrepareThinLtoContext))?; let data = ThinData(data); @@ -599,7 +578,7 @@ fn thin_lto( // session, overwriting the previous serialized data (if any). if let Some(path) = key_map_path { if let Err(err) = curr_key_map.save_to_file(&path) { - return Err(write::llvm_err(diag_handler, LlvmError::WriteThinLtoKey { err })); + return Err(write::llvm_err(dcx, LlvmError::WriteThinLtoKey { err })); } } @@ -609,7 +588,7 @@ fn thin_lto( pub(crate) fn run_pass_manager( cgcx: &CodegenContext<LlvmCodegenBackend>, - diag_handler: &Handler, + dcx: &DiagCtxt, module: &mut ModuleCodegen<ModuleLlvm>, thin: bool, ) -> Result<(), FatalError> { @@ -637,7 +616,7 @@ pub(crate) fn run_pass_manager( } let opt_stage = if thin { llvm::OptStage::ThinLTO } else { llvm::OptStage::FatLTO }; let opt_level = config.opt_level.unwrap_or(config::OptLevel::No); - write::llvm_optimize(cgcx, diag_handler, module, config, opt_level, opt_stage)?; + write::llvm_optimize(cgcx, dcx, module, config, opt_level, opt_stage)?; } debug!("lto done"); Ok(()) @@ -721,11 +700,11 @@ pub unsafe fn optimize_thin_module( thin_module: ThinModule<LlvmCodegenBackend>, cgcx: &CodegenContext<LlvmCodegenBackend>, ) -> Result<ModuleCodegen<ModuleLlvm>, FatalError> { - let diag_handler = cgcx.create_diag_handler(); + let dcx = cgcx.create_dcx(); let module_name = &thin_module.shared.module_names[thin_module.idx]; let tm_factory_config = TargetMachineFactoryConfig::new(cgcx, module_name.to_str().unwrap()); - let tm = (cgcx.tm_factory)(tm_factory_config).map_err(|e| write::llvm_err(&diag_handler, e))?; + let tm = (cgcx.tm_factory)(tm_factory_config).map_err(|e| write::llvm_err(&dcx, e))?; // Right now the implementation we've got only works over serialized // modules, so we create a fresh new LLVM context and parse the module @@ -733,7 +712,7 @@ pub unsafe fn optimize_thin_module( // crates but for locally codegened modules we may be able to reuse // that LLVM Context and Module. let llcx = llvm::LLVMRustContextCreate(cgcx.fewer_names); - let llmod_raw = parse_module(llcx, module_name, thin_module.data(), &diag_handler)? as *const _; + let llmod_raw = parse_module(llcx, module_name, thin_module.data(), &dcx)? as *const _; let mut module = ModuleCodegen { module_llvm: ModuleLlvm { llmod_raw, llcx, tm: ManuallyDrop::new(tm) }, name: thin_module.name().to_string(), @@ -756,7 +735,7 @@ pub unsafe fn optimize_thin_module( let _timer = cgcx.prof.generic_activity_with_arg("LLVM_thin_lto_rename", thin_module.name()); if !llvm::LLVMRustPrepareThinLTORename(thin_module.shared.data.0, llmod, target) { - return Err(write::llvm_err(&diag_handler, LlvmError::PrepareThinLtoModule)); + return Err(write::llvm_err(&dcx, LlvmError::PrepareThinLtoModule)); } save_temp_bitcode(cgcx, &module, "thin-lto-after-rename"); } @@ -766,7 +745,7 @@ pub unsafe fn optimize_thin_module( .prof .generic_activity_with_arg("LLVM_thin_lto_resolve_weak", thin_module.name()); if !llvm::LLVMRustPrepareThinLTOResolveWeak(thin_module.shared.data.0, llmod) { - return Err(write::llvm_err(&diag_handler, LlvmError::PrepareThinLtoModule)); + return Err(write::llvm_err(&dcx, LlvmError::PrepareThinLtoModule)); } save_temp_bitcode(cgcx, &module, "thin-lto-after-resolve"); } @@ -776,7 +755,7 @@ pub unsafe fn optimize_thin_module( .prof .generic_activity_with_arg("LLVM_thin_lto_internalize", thin_module.name()); if !llvm::LLVMRustPrepareThinLTOInternalize(thin_module.shared.data.0, llmod) { - return Err(write::llvm_err(&diag_handler, LlvmError::PrepareThinLtoModule)); + return Err(write::llvm_err(&dcx, LlvmError::PrepareThinLtoModule)); } save_temp_bitcode(cgcx, &module, "thin-lto-after-internalize"); } @@ -785,7 +764,7 @@ pub unsafe fn optimize_thin_module( let _timer = cgcx.prof.generic_activity_with_arg("LLVM_thin_lto_import", thin_module.name()); if !llvm::LLVMRustPrepareThinLTOImport(thin_module.shared.data.0, llmod, target) { - return Err(write::llvm_err(&diag_handler, LlvmError::PrepareThinLtoModule)); + return Err(write::llvm_err(&dcx, LlvmError::PrepareThinLtoModule)); } save_temp_bitcode(cgcx, &module, "thin-lto-after-import"); } @@ -797,7 +776,7 @@ pub unsafe fn optimize_thin_module( // little differently. { info!("running thin lto passes over {}", module.name); - run_pass_manager(cgcx, &diag_handler, &mut module, true)?; + run_pass_manager(cgcx, &dcx, &mut module, true)?; save_temp_bitcode(cgcx, &module, "thin-lto-after-pm"); } } @@ -868,10 +847,10 @@ pub fn parse_module<'a>( cx: &'a llvm::Context, name: &CStr, data: &[u8], - diag_handler: &Handler, + dcx: &DiagCtxt, ) -> Result<&'a llvm::Module, FatalError> { unsafe { llvm::LLVMRustParseBitcodeForLTO(cx, data.as_ptr(), data.len(), name.as_ptr()) - .ok_or_else(|| write::llvm_err(diag_handler, LlvmError::ParseBitcode)) + .ok_or_else(|| write::llvm_err(dcx, LlvmError::ParseBitcode)) } } diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs index 048f66ad148..75f99f964d0 100644 --- a/compiler/rustc_codegen_llvm/src/back/write.rs +++ b/compiler/rustc_codegen_llvm/src/back/write.rs @@ -26,7 +26,7 @@ use rustc_codegen_ssa::traits::*; use rustc_codegen_ssa::{CompiledModule, ModuleCodegen}; use rustc_data_structures::profiling::SelfProfilerRef; use rustc_data_structures::small_c_str::SmallCStr; -use rustc_errors::{FatalError, Handler, Level}; +use rustc_errors::{DiagCtxt, FatalError, Level}; use rustc_fs_util::{link_or_copy, path_to_c_string}; use rustc_middle::ty::TyCtxt; use rustc_session::config::{self, Lto, OutputType, Passes, SplitDwarfKind, SwitchWithOptPath}; @@ -45,15 +45,15 @@ use std::slice; use std::str; use std::sync::Arc; -pub fn llvm_err<'a>(handler: &rustc_errors::Handler, err: LlvmError<'a>) -> FatalError { +pub fn llvm_err<'a>(dcx: &rustc_errors::DiagCtxt, err: LlvmError<'a>) -> FatalError { match llvm::last_error() { - Some(llvm_err) => handler.emit_almost_fatal(WithLlvmError(err, llvm_err)), - None => handler.emit_almost_fatal(err), + Some(llvm_err) => dcx.emit_almost_fatal(WithLlvmError(err, llvm_err)), + None => dcx.emit_almost_fatal(err), } } pub fn write_output_file<'ll>( - handler: &rustc_errors::Handler, + dcx: &rustc_errors::DiagCtxt, target: &'ll llvm::TargetMachine, pm: &llvm::PassManager<'ll>, m: &'ll llvm::Module, @@ -93,9 +93,7 @@ pub fn write_output_file<'ll>( } } - result - .into_result() - .map_err(|()| llvm_err(handler, LlvmError::WriteOutput { path: output })) + result.into_result().map_err(|()| llvm_err(dcx, LlvmError::WriteOutput { path: output })) } } @@ -105,7 +103,7 @@ pub fn create_informational_target_machine(sess: &Session) -> OwnedTargetMachine // system/tcx is set up. let features = llvm_util::global_llvm_features(sess, false); target_machine_factory(sess, config::OptLevel::No, &features)(config) - .unwrap_or_else(|err| llvm_err(sess.diagnostic(), err).raise()) + .unwrap_or_else(|err| llvm_err(sess.dcx(), err).raise()) } pub fn create_target_machine(tcx: TyCtxt<'_>, mod_name: &str) -> OwnedTargetMachine { @@ -128,7 +126,7 @@ pub fn create_target_machine(tcx: TyCtxt<'_>, mod_name: &str) -> OwnedTargetMach tcx.backend_optimization_level(()), tcx.global_backend_features(()), )(config) - .unwrap_or_else(|err| llvm_err(tcx.sess.diagnostic(), err).raise()) + .unwrap_or_else(|err| llvm_err(tcx.sess.dcx(), err).raise()) } pub fn to_llvm_opt_settings( @@ -332,7 +330,7 @@ pub enum CodegenDiagnosticsStage { } pub struct DiagnosticHandlers<'a> { - data: *mut (&'a CodegenContext<LlvmCodegenBackend>, &'a Handler), + data: *mut (&'a CodegenContext<LlvmCodegenBackend>, &'a DiagCtxt), llcx: &'a llvm::Context, old_handler: Option<&'a llvm::DiagnosticHandler>, } @@ -340,7 +338,7 @@ pub struct DiagnosticHandlers<'a> { impl<'a> DiagnosticHandlers<'a> { pub fn new( cgcx: &'a CodegenContext<LlvmCodegenBackend>, - handler: &'a Handler, + dcx: &'a DiagCtxt, llcx: &'a llvm::Context, module: &ModuleCodegen<ModuleLlvm>, stage: CodegenDiagnosticsStage, @@ -375,7 +373,7 @@ impl<'a> DiagnosticHandlers<'a> { .and_then(|dir| dir.to_str().and_then(|p| CString::new(p).ok())); let pgo_available = cgcx.opts.cg.profile_use.is_some(); - let data = Box::into_raw(Box::new((cgcx, handler))); + let data = Box::into_raw(Box::new((cgcx, dcx))); unsafe { let old_handler = llvm::LLVMRustContextGetDiagnosticHandler(llcx); llvm::LLVMRustContextConfigureDiagnosticHandler( @@ -429,7 +427,7 @@ unsafe extern "C" fn diagnostic_handler(info: &DiagnosticInfo, user: *mut c_void if user.is_null() { return; } - let (cgcx, diag_handler) = *(user as *const (&CodegenContext<LlvmCodegenBackend>, &Handler)); + let (cgcx, dcx) = *(user as *const (&CodegenContext<LlvmCodegenBackend>, &DiagCtxt)); match llvm::diagnostic::Diagnostic::unpack(info) { llvm::diagnostic::InlineAsm(inline) => { @@ -437,7 +435,7 @@ unsafe extern "C" fn diagnostic_handler(info: &DiagnosticInfo, user: *mut c_void } llvm::diagnostic::Optimization(opt) => { - diag_handler.emit_note(FromLlvmOptimizationDiag { + dcx.emit_note(FromLlvmOptimizationDiag { filename: &opt.filename, line: opt.line, column: opt.column, @@ -459,14 +457,14 @@ unsafe extern "C" fn diagnostic_handler(info: &DiagnosticInfo, user: *mut c_void llvm::LLVMRustWriteDiagnosticInfoToString(diagnostic_ref, s) }) .expect("non-UTF8 diagnostic"); - diag_handler.emit_warning(FromLlvmDiag { message }); + dcx.emit_warning(FromLlvmDiag { message }); } llvm::diagnostic::Unsupported(diagnostic_ref) => { let message = llvm::build_string(|s| { llvm::LLVMRustWriteDiagnosticInfoToString(diagnostic_ref, s) }) .expect("non-UTF8 diagnostic"); - diag_handler.emit_err(FromLlvmDiag { message }); + dcx.emit_err(FromLlvmDiag { message }); } llvm::diagnostic::UnknownDiagnostic(..) => {} } @@ -507,7 +505,7 @@ fn get_instr_profile_output_path(config: &ModuleConfig) -> Option<CString> { pub(crate) unsafe fn llvm_optimize( cgcx: &CodegenContext<LlvmCodegenBackend>, - diag_handler: &Handler, + dcx: &DiagCtxt, module: &ModuleCodegen<ModuleLlvm>, config: &ModuleConfig, opt_level: config::OptLevel, @@ -588,13 +586,13 @@ pub(crate) unsafe fn llvm_optimize( llvm_plugins.as_ptr().cast(), llvm_plugins.len(), ); - result.into_result().map_err(|()| llvm_err(diag_handler, LlvmError::RunLlvmPasses)) + result.into_result().map_err(|()| llvm_err(dcx, LlvmError::RunLlvmPasses)) } // Unsafe due to LLVM calls. pub(crate) unsafe fn optimize( cgcx: &CodegenContext<LlvmCodegenBackend>, - diag_handler: &Handler, + dcx: &DiagCtxt, module: &ModuleCodegen<ModuleLlvm>, config: &ModuleConfig, ) -> Result<(), FatalError> { @@ -602,8 +600,7 @@ pub(crate) unsafe fn optimize( let llmod = module.module_llvm.llmod(); let llcx = &*module.module_llvm.llcx; - let _handlers = - DiagnosticHandlers::new(cgcx, diag_handler, llcx, module, CodegenDiagnosticsStage::Opt); + let _handlers = DiagnosticHandlers::new(cgcx, dcx, llcx, module, CodegenDiagnosticsStage::Opt); let module_name = module.name.clone(); let module_name = Some(&module_name[..]); @@ -621,14 +618,14 @@ pub(crate) unsafe fn optimize( _ if cgcx.opts.cg.linker_plugin_lto.enabled() => llvm::OptStage::PreLinkThinLTO, _ => llvm::OptStage::PreLinkNoLTO, }; - return llvm_optimize(cgcx, diag_handler, module, config, opt_level, opt_stage); + return llvm_optimize(cgcx, dcx, module, config, opt_level, opt_stage); } Ok(()) } pub(crate) fn link( cgcx: &CodegenContext<LlvmCodegenBackend>, - diag_handler: &Handler, + dcx: &DiagCtxt, mut modules: Vec<ModuleCodegen<ModuleLlvm>>, ) -> Result<ModuleCodegen<ModuleLlvm>, FatalError> { use super::lto::{Linker, ModuleBuffer}; @@ -641,9 +638,9 @@ pub(crate) fn link( for module in elements { let _timer = cgcx.prof.generic_activity_with_arg("LLVM_link_module", &*module.name); let buffer = ModuleBuffer::new(module.module_llvm.llmod()); - linker.add(buffer.data()).map_err(|()| { - llvm_err(diag_handler, LlvmError::SerializeModule { name: &module.name }) - })?; + linker + .add(buffer.data()) + .map_err(|()| llvm_err(dcx, LlvmError::SerializeModule { name: &module.name }))?; } drop(linker); Ok(modules.remove(0)) @@ -651,7 +648,7 @@ pub(crate) fn link( pub(crate) unsafe fn codegen( cgcx: &CodegenContext<LlvmCodegenBackend>, - diag_handler: &Handler, + dcx: &DiagCtxt, module: ModuleCodegen<ModuleLlvm>, config: &ModuleConfig, ) -> Result<CompiledModule, FatalError> { @@ -662,13 +659,8 @@ pub(crate) unsafe fn codegen( let tm = &*module.module_llvm.tm; let module_name = module.name.clone(); let module_name = Some(&module_name[..]); - let _handlers = DiagnosticHandlers::new( - cgcx, - diag_handler, - llcx, - &module, - CodegenDiagnosticsStage::Codegen, - ); + let _handlers = + DiagnosticHandlers::new(cgcx, dcx, llcx, &module, CodegenDiagnosticsStage::Codegen); if cgcx.msvc_imps_needed { create_msvc_imps(cgcx, llcx, llmod); @@ -726,7 +718,7 @@ pub(crate) unsafe fn codegen( .prof .generic_activity_with_arg("LLVM_module_codegen_emit_bitcode", &*module.name); if let Err(err) = fs::write(&bc_out, data) { - diag_handler.emit_err(WriteBytecode { path: &bc_out, err }); + dcx.emit_err(WriteBytecode { path: &bc_out, err }); } } @@ -776,9 +768,7 @@ pub(crate) unsafe fn codegen( record_artifact_size(&cgcx.prof, "llvm_ir", &out); } - result - .into_result() - .map_err(|()| llvm_err(diag_handler, LlvmError::WriteIr { path: &out }))?; + result.into_result().map_err(|()| llvm_err(dcx, LlvmError::WriteIr { path: &out }))?; } if config.emit_asm { @@ -797,7 +787,7 @@ pub(crate) unsafe fn codegen( }; with_codegen(tm, llmod, |cpm| { write_output_file( - diag_handler, + dcx, tm, cpm, llmod, @@ -832,7 +822,7 @@ pub(crate) unsafe fn codegen( with_codegen(tm, llmod, |cpm| { write_output_file( - diag_handler, + dcx, tm, cpm, llmod, @@ -847,12 +837,12 @@ pub(crate) unsafe fn codegen( EmitObj::Bitcode => { debug!("copying bitcode {:?} to obj {:?}", bc_out, obj_out); if let Err(err) = link_or_copy(&bc_out, &obj_out) { - diag_handler.emit_err(CopyBitcode { err }); + dcx.emit_err(CopyBitcode { err }); } if !config.emit_bc { debug!("removing_bitcode {:?}", bc_out); - ensure_removed(diag_handler, &bc_out); + ensure_removed(dcx, &bc_out); } } diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs index 8386f067baf..0befbb5a39b 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs @@ -85,6 +85,14 @@ impl<'tcx> CoverageInfoBuilderMethods<'tcx> for Builder<'_, '_, 'tcx> { let bx = self; + match coverage.kind { + // Marker statements have no effect during codegen, + // so return early and don't create `func_coverage`. + CoverageKind::SpanMarker => return, + // Match exhaustively to ensure that newly-added kinds are classified correctly. + CoverageKind::CounterIncrement { .. } | CoverageKind::ExpressionUsed { .. } => {} + } + let Some(function_coverage_info) = bx.tcx.instance_mir(instance.def).function_coverage_info.as_deref() else { @@ -100,9 +108,9 @@ impl<'tcx> CoverageInfoBuilderMethods<'tcx> for Builder<'_, '_, 'tcx> { let Coverage { kind } = coverage; match *kind { - // Span markers are only meaningful during MIR instrumentation, - // and have no effect during codegen. - CoverageKind::SpanMarker => {} + CoverageKind::SpanMarker => unreachable!( + "unexpected marker statement {kind:?} should have caused an early return" + ), CoverageKind::CounterIncrement { id } => { func_coverage.mark_counter_id_seen(id); // We need to explicitly drop the `RefMut` before calling into `instrprof_increment`, diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs index 883f82caa80..59c075a3d3e 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs @@ -534,7 +534,7 @@ fn hex_encode(data: &[u8]) -> String { } pub fn file_metadata<'ll>(cx: &CodegenCx<'ll, '_>, source_file: &SourceFile) -> &'ll DIFile { - let cache_key = Some((source_file.name_hash, source_file.src_hash)); + let cache_key = Some((source_file.stable_id, source_file.src_hash)); return debug_context(cx) .created_files .borrow_mut() diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs index 31631e8a864..d3a851b40c0 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs @@ -1,6 +1,7 @@ #![doc = include_str!("doc.md")] use rustc_codegen_ssa::mir::debuginfo::VariableKind::*; +use rustc_data_structures::unord::UnordMap; use self::metadata::{file_metadata, type_di_node}; use self::metadata::{UNKNOWN_COLUMN_NUMBER, UNKNOWN_LINE_NUMBER}; @@ -20,8 +21,6 @@ use crate::value::Value; use rustc_codegen_ssa::debuginfo::type_names; use rustc_codegen_ssa::mir::debuginfo::{DebugScope, FunctionDebugContext, VariableKind}; use rustc_codegen_ssa::traits::*; -use rustc_data_structures::fx::FxHashMap; -use rustc_data_structures::stable_hasher::Hash128; use rustc_data_structures::sync::Lrc; use rustc_hir::def_id::{DefId, DefIdMap}; use rustc_index::IndexVec; @@ -32,7 +31,9 @@ use rustc_middle::ty::{self, Instance, ParamEnv, Ty, TypeVisitableExt}; use rustc_session::config::{self, DebugInfo}; use rustc_session::Session; use rustc_span::symbol::Symbol; -use rustc_span::{BytePos, Pos, SourceFile, SourceFileAndLine, SourceFileHash, Span}; +use rustc_span::{ + BytePos, Pos, SourceFile, SourceFileAndLine, SourceFileHash, Span, StableSourceFileId, +}; use rustc_target::abi::Size; use libc::c_uint; @@ -61,7 +62,7 @@ pub struct CodegenUnitDebugContext<'ll, 'tcx> { llcontext: &'ll llvm::Context, llmod: &'ll llvm::Module, builder: &'ll mut DIBuilder<'ll>, - created_files: RefCell<FxHashMap<Option<(Hash128, SourceFileHash)>, &'ll DIFile>>, + created_files: RefCell<UnordMap<Option<(StableSourceFileId, SourceFileHash)>, &'ll DIFile>>, type_map: metadata::TypeMap<'ll, 'tcx>, namespace_map: RefCell<DefIdMap<&'ll DIScope>>, diff --git a/compiler/rustc_codegen_llvm/src/errors.rs b/compiler/rustc_codegen_llvm/src/errors.rs index e6e37a02335..8db97d577ca 100644 --- a/compiler/rustc_codegen_llvm/src/errors.rs +++ b/compiler/rustc_codegen_llvm/src/errors.rs @@ -4,9 +4,7 @@ use std::path::Path; use crate::fluent_generated as fluent; use rustc_data_structures::small_c_str::SmallCStr; -use rustc_errors::{ - DiagnosticBuilder, EmissionGuarantee, ErrorGuaranteed, FatalError, Handler, IntoDiagnostic, -}; +use rustc_errors::{DiagCtxt, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, Level}; use rustc_macros::{Diagnostic, Subdiagnostic}; use rustc_span::Span; @@ -101,14 +99,14 @@ pub(crate) struct DynamicLinkingWithLTO; pub(crate) struct ParseTargetMachineConfig<'a>(pub LlvmError<'a>); -impl IntoDiagnostic<'_, FatalError> for ParseTargetMachineConfig<'_> { - fn into_diagnostic(self, handler: &'_ Handler) -> DiagnosticBuilder<'_, FatalError> { - let diag: DiagnosticBuilder<'_, FatalError> = self.0.into_diagnostic(handler); - let (message, _) = diag.styled_message().first().expect("`LlvmError` with no message"); - let message = handler.eagerly_translate_to_string(message.clone(), diag.args()); +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for ParseTargetMachineConfig<'_> { + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let diag: DiagnosticBuilder<'_, G> = self.0.into_diagnostic(dcx, level); + let (message, _) = diag.messages().first().expect("`LlvmError` with no message"); + let message = dcx.eagerly_translate_to_string(message.clone(), diag.args()); let mut diag = - handler.struct_almost_fatal(fluent::codegen_llvm_parse_target_machine_config); + DiagnosticBuilder::new(dcx, level, fluent::codegen_llvm_parse_target_machine_config); diag.set_arg("error", message); diag } @@ -124,9 +122,13 @@ pub(crate) struct TargetFeatureDisableOrEnable<'a> { #[help(codegen_llvm_missing_features)] pub(crate) struct MissingFeatures; -impl IntoDiagnostic<'_, ErrorGuaranteed> for TargetFeatureDisableOrEnable<'_> { - fn into_diagnostic(self, handler: &'_ Handler) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::codegen_llvm_target_feature_disable_or_enable); +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for TargetFeatureDisableOrEnable<'_> { + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = DiagnosticBuilder::new( + dcx, + level, + fluent::codegen_llvm_target_feature_disable_or_enable, + ); if let Some(span) = self.span { diag.set_span(span); }; @@ -185,7 +187,7 @@ pub enum LlvmError<'a> { pub(crate) struct WithLlvmError<'a>(pub LlvmError<'a>, pub String); impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for WithLlvmError<'_> { - fn into_diagnostic(self, handler: &'_ Handler) -> DiagnosticBuilder<'_, G> { + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { use LlvmError::*; let msg_with_llvm_err = match &self.0 { WriteOutput { .. } => fluent::codegen_llvm_write_output_with_llvm_err, @@ -202,7 +204,7 @@ impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for WithLlvmError<'_> { PrepareThinLtoModule => fluent::codegen_llvm_prepare_thin_lto_module_with_llvm_err, ParseBitcode => fluent::codegen_llvm_parse_bitcode_with_llvm_err, }; - let mut diag = self.0.into_diagnostic(handler); + let mut diag = self.0.into_diagnostic(dcx, level); diag.set_primary_message(msg_with_llvm_err); diag.set_arg("llvm_err", self.1); diag diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs index dfef2fbab56..a81056ed3ad 100644 --- a/compiler/rustc_codegen_llvm/src/lib.rs +++ b/compiler/rustc_codegen_llvm/src/lib.rs @@ -8,7 +8,6 @@ #![feature(rustdoc_internals)] #![doc(rust_logo)] #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")] -#![cfg_attr(bootstrap, feature(c_str_literals))] #![feature(exact_size_is_empty)] #![feature(extern_types)] #![feature(hash_raw_entry)] @@ -40,7 +39,7 @@ use rustc_codegen_ssa::traits::*; use rustc_codegen_ssa::ModuleCodegen; use rustc_codegen_ssa::{CodegenResults, CompiledModule}; use rustc_data_structures::fx::FxIndexMap; -use rustc_errors::{ErrorGuaranteed, FatalError, Handler}; +use rustc_errors::{DiagCtxt, ErrorGuaranteed, FatalError}; use rustc_metadata::EncodedMetadata; use rustc_middle::dep_graph::{WorkProduct, WorkProductId}; use rustc_middle::ty::TyCtxt; @@ -200,10 +199,10 @@ impl WriteBackendMethods for LlvmCodegenBackend { } fn run_link( cgcx: &CodegenContext<Self>, - diag_handler: &Handler, + dcx: &DiagCtxt, modules: Vec<ModuleCodegen<Self::Module>>, ) -> Result<ModuleCodegen<Self::Module>, FatalError> { - back::write::link(cgcx, diag_handler, modules) + back::write::link(cgcx, dcx, modules) } fn run_fat_lto( cgcx: &CodegenContext<Self>, @@ -221,18 +220,18 @@ impl WriteBackendMethods for LlvmCodegenBackend { } unsafe fn optimize( cgcx: &CodegenContext<Self>, - diag_handler: &Handler, + dcx: &DiagCtxt, module: &ModuleCodegen<Self::Module>, config: &ModuleConfig, ) -> Result<(), FatalError> { - back::write::optimize(cgcx, diag_handler, module, config) + back::write::optimize(cgcx, dcx, module, config) } fn optimize_fat( cgcx: &CodegenContext<Self>, module: &mut ModuleCodegen<Self::Module>, ) -> Result<(), FatalError> { - let diag_handler = cgcx.create_diag_handler(); - back::lto::run_pass_manager(cgcx, &diag_handler, module, false) + let dcx = cgcx.create_dcx(); + back::lto::run_pass_manager(cgcx, &dcx, module, false) } unsafe fn optimize_thin( cgcx: &CodegenContext<Self>, @@ -242,11 +241,11 @@ impl WriteBackendMethods for LlvmCodegenBackend { } unsafe fn codegen( cgcx: &CodegenContext<Self>, - diag_handler: &Handler, + dcx: &DiagCtxt, module: ModuleCodegen<Self::Module>, config: &ModuleConfig, ) -> Result<CompiledModule, FatalError> { - back::write::codegen(cgcx, diag_handler, module, config) + back::write::codegen(cgcx, dcx, module, config) } fn prepare_thin(module: ModuleCodegen<Self::Module>) -> (String, Self::ThinBuffer) { back::lto::prepare_thin(module) @@ -447,16 +446,16 @@ impl ModuleLlvm { cgcx: &CodegenContext<LlvmCodegenBackend>, name: &CStr, buffer: &[u8], - handler: &Handler, + dcx: &DiagCtxt, ) -> Result<Self, FatalError> { unsafe { let llcx = llvm::LLVMRustContextCreate(cgcx.fewer_names); - let llmod_raw = back::lto::parse_module(llcx, name, buffer, handler)?; + let llmod_raw = back::lto::parse_module(llcx, name, buffer, dcx)?; let tm_factory_config = TargetMachineFactoryConfig::new(cgcx, name.to_str().unwrap()); let tm = match (cgcx.tm_factory)(tm_factory_config) { Ok(m) => m, Err(e) => { - return Err(handler.emit_almost_fatal(ParseTargetMachineConfig(e))); + return Err(dcx.emit_almost_fatal(ParseTargetMachineConfig(e))); } }; diff --git a/compiler/rustc_codegen_ssa/src/assert_module_sources.rs b/compiler/rustc_codegen_ssa/src/assert_module_sources.rs index 01d1b1059b9..a5bd10ecb34 100644 --- a/compiler/rustc_codegen_ssa/src/assert_module_sources.rs +++ b/compiler/rustc_codegen_ssa/src/assert_module_sources.rs @@ -278,13 +278,13 @@ impl CguReuseTracker { if error { let at_least = if at_least { 1 } else { 0 }; - errors::IncorrectCguReuseType { + sess.emit_err(errors::IncorrectCguReuseType { span: *error_span, cgu_user_name, actual_reuse, expected_reuse, at_least, - }; + }); } } else { sess.emit_fatal(errors::CguNotRecorded { cgu_user_name, cgu_name }); diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index 000b2748e4f..b32865a0518 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -4,7 +4,7 @@ use rustc_data_structures::fx::FxHashSet; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::memmap::Mmap; use rustc_data_structures::temp_dir::MaybeTempDir; -use rustc_errors::{ErrorGuaranteed, Handler}; +use rustc_errors::{DiagCtxt, ErrorGuaranteed}; use rustc_fs_util::{fix_windows_verbatim_for_gcc, try_canonicalize}; use rustc_hir::def_id::{CrateNum, LOCAL_CRATE}; use rustc_metadata::find_native_static_library; @@ -52,10 +52,10 @@ use std::path::{Path, PathBuf}; use std::process::{ExitStatus, Output, Stdio}; use std::{env, fmt, fs, io, mem, str}; -pub fn ensure_removed(diag_handler: &Handler, path: &Path) { +pub fn ensure_removed(dcx: &DiagCtxt, path: &Path) { if let Err(e) = fs::remove_file(path) { if e.kind() != io::ErrorKind::NotFound { - diag_handler.err(format!("failed to remove {}: {}", path.display(), e)); + dcx.err(format!("failed to remove {}: {}", path.display(), e)); } } } @@ -143,7 +143,7 @@ pub fn link_binary<'a>( } } if sess.opts.json_artifact_notifications { - sess.diagnostic().emit_artifact_notification(&out_filename, "link"); + sess.dcx().emit_artifact_notification(&out_filename, "link"); } if sess.prof.enabled() { @@ -183,13 +183,13 @@ pub fn link_binary<'a>( |preserve_objects: bool, preserve_dwarf_objects: bool, module: &CompiledModule| { if !preserve_objects { if let Some(ref obj) = module.object { - ensure_removed(sess.diagnostic(), obj); + ensure_removed(sess.dcx(), obj); } } if !preserve_dwarf_objects { if let Some(ref dwo_obj) = module.dwarf_object { - ensure_removed(sess.diagnostic(), dwo_obj); + ensure_removed(sess.dcx(), dwo_obj); } } }; @@ -208,7 +208,7 @@ pub fn link_binary<'a>( // Remove the temporary files if output goes to stdout for temp in tempfiles_for_stdout_output { - ensure_removed(sess.diagnostic(), &temp); + ensure_removed(sess.dcx(), &temp); } // If no requested outputs require linking, then the object temporaries should @@ -933,7 +933,7 @@ fn link_natively<'a>( command: &cmd, escaped_output, }; - sess.diagnostic().emit_err(err); + sess.dcx().emit_err(err); // If MSVC's `link.exe` was expected but the return code // is not a Microsoft LNK error then suggest a way to fix or // install the Visual Studio build tools. diff --git a/compiler/rustc_codegen_ssa/src/back/metadata.rs b/compiler/rustc_codegen_ssa/src/back/metadata.rs index bc0e3a82806..b683e1b45a8 100644 --- a/compiler/rustc_codegen_ssa/src/back/metadata.rs +++ b/compiler/rustc_codegen_ssa/src/back/metadata.rs @@ -158,12 +158,13 @@ pub(super) fn get_metadata_xcoff<'a>(path: &Path, data: &'a [u8]) -> Result<&'a file.symbols().find(|sym| sym.name() == Ok(AIX_METADATA_SYMBOL_NAME)) { let offset = metadata_symbol.address() as usize; - if offset < 8 { + // The offset specifies the location of rustc metadata in the .info section of XCOFF. + // Each string stored in .info section of XCOFF is preceded by a 4-byte length field. + if offset < 4 { return Err(format!("Invalid metadata symbol offset: {offset}")); } - // The offset specifies the location of rustc metadata in the comment section. - // The metadata is preceded by a 8-byte length field. - let len = u64::from_le_bytes(info_data[(offset - 8)..offset].try_into().unwrap()) as usize; + // XCOFF format uses big-endian byte order. + let len = u32::from_be_bytes(info_data[(offset - 4)..offset].try_into().unwrap()) as usize; if offset + len > (info_data.len() as usize) { return Err(format!( "Metadata at offset {offset} with size {len} is beyond .info section" @@ -478,9 +479,12 @@ pub fn create_wrapper_file( file.add_section(Vec::new(), b".text".to_vec(), SectionKind::Text); file.section_mut(section).flags = SectionFlags::Xcoff { s_flags: xcoff::STYP_INFO as u32 }; - - let len = data.len() as u64; - let offset = file.append_section_data(section, &len.to_le_bytes(), 1); + // Encode string stored in .info section of XCOFF. + // FIXME: The length of data here is not guaranteed to fit in a u32. + // We may have to split the data into multiple pieces in order to + // store in .info section. + let len: u32 = data.len().try_into().unwrap(); + let offset = file.append_section_data(section, &len.to_be_bytes(), 1); // Add a symbol referring to the data in .info section. file.add_symbol(Symbol { name: AIX_METADATA_SYMBOL_NAME.into(), @@ -599,12 +603,12 @@ pub fn create_compressed_metadata_file_for_xcoff( section: SymbolSection::Section(data_section), flags: SymbolFlags::None, }); - let len = data.len() as u64; - let offset = file.append_section_data(section, &len.to_le_bytes(), 1); + let len: u32 = data.len().try_into().unwrap(); + let offset = file.append_section_data(section, &len.to_be_bytes(), 1); // Add a symbol referring to the rustc metadata. file.add_symbol(Symbol { name: AIX_METADATA_SYMBOL_NAME.into(), - value: offset + 8, // The metadata is preceded by a 8-byte length field. + value: offset + 4, // The metadata is preceded by a 4-byte length field. size: 0, kind: SymbolKind::Unknown, scope: SymbolScope::Dynamic, diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs index 40fd8c5c1d6..53ae085a721 100644 --- a/compiler/rustc_codegen_ssa/src/back/write.rs +++ b/compiler/rustc_codegen_ssa/src/back/write.rs @@ -14,8 +14,8 @@ use rustc_data_structures::memmap::Mmap; use rustc_data_structures::profiling::{SelfProfilerRef, VerboseTimingGuard}; use rustc_data_structures::sync::Lrc; use rustc_errors::emitter::Emitter; -use rustc_errors::{translation::Translate, DiagnosticId, FatalError, Handler, Level}; -use rustc_errors::{DiagnosticMessage, Style}; +use rustc_errors::{translation::Translate, DiagCtxt, DiagnosticId, FatalError, Level}; +use rustc_errors::{DiagnosticBuilder, DiagnosticMessage, Style}; use rustc_fs_util::link_or_copy; use rustc_hir::def_id::{CrateNum, LOCAL_CRATE}; use rustc_incremental::{ @@ -344,7 +344,7 @@ pub struct CodegenContext<B: WriteBackendMethods> { /// how to call the compiler with the same arguments. pub expanded_args: Vec<String>, - /// Handler to use for diagnostics produced during codegen. + /// Emitter to use for diagnostics produced during codegen. pub diag_emitter: SharedEmitter, /// LLVM optimizations for which we want to print remarks. pub remark: Passes, @@ -359,8 +359,8 @@ pub struct CodegenContext<B: WriteBackendMethods> { } impl<B: WriteBackendMethods> CodegenContext<B> { - pub fn create_diag_handler(&self) -> Handler { - Handler::with_emitter(Box::new(self.diag_emitter.clone())) + pub fn create_dcx(&self) -> DiagCtxt { + DiagCtxt::with_emitter(Box::new(self.diag_emitter.clone())) } pub fn config(&self, kind: ModuleKind) -> &ModuleConfig { @@ -558,7 +558,7 @@ fn produce_final_output_artifacts( } if !sess.opts.cg.save_temps && !keep_numbered { // The user just wants `foo.x`, not `foo.#module-name#.x`. - ensure_removed(sess.diagnostic(), &path); + ensure_removed(sess.dcx(), &path); } } else { let extension = crate_output @@ -649,19 +649,19 @@ fn produce_final_output_artifacts( for module in compiled_modules.modules.iter() { if let Some(ref path) = module.object { if !keep_numbered_objects { - ensure_removed(sess.diagnostic(), path); + ensure_removed(sess.dcx(), path); } } if let Some(ref path) = module.dwarf_object { if !keep_numbered_objects { - ensure_removed(sess.diagnostic(), path); + ensure_removed(sess.dcx(), path); } } if let Some(ref path) = module.bytecode { if !keep_numbered_bitcode { - ensure_removed(sess.diagnostic(), path); + ensure_removed(sess.dcx(), path); } } } @@ -669,7 +669,7 @@ fn produce_final_output_artifacts( if !user_wants_bitcode { if let Some(ref allocator_module) = compiled_modules.allocator_module { if let Some(ref path) = allocator_module.bytecode { - ensure_removed(sess.diagnostic(), path); + ensure_removed(sess.dcx(), path); } } } @@ -825,10 +825,10 @@ fn execute_optimize_work_item<B: ExtraBackendMethods>( module: ModuleCodegen<B::Module>, module_config: &ModuleConfig, ) -> Result<WorkItemResult<B>, FatalError> { - let diag_handler = cgcx.create_diag_handler(); + let dcx = cgcx.create_dcx(); unsafe { - B::optimize(cgcx, &diag_handler, &module, module_config)?; + B::optimize(cgcx, &dcx, &module, module_config)?; } // After we've done the initial round of optimizations we need to @@ -891,11 +891,7 @@ fn execute_copy_from_cache_work_item<B: ExtraBackendMethods>( match link_or_copy(&source_file, &output_path) { Ok(_) => Some(output_path), Err(error) => { - cgcx.create_diag_handler().emit_err(errors::CopyPathBuf { - source_file, - output_path, - error, - }); + cgcx.create_dcx().emit_err(errors::CopyPathBuf { source_file, output_path, error }); None } } @@ -939,13 +935,13 @@ fn finish_intra_module_work<B: ExtraBackendMethods>( module: ModuleCodegen<B::Module>, module_config: &ModuleConfig, ) -> Result<WorkItemResult<B>, FatalError> { - let diag_handler = cgcx.create_diag_handler(); + let dcx = cgcx.create_dcx(); if !cgcx.opts.unstable_opts.combine_cgu || module.kind == ModuleKind::Metadata || module.kind == ModuleKind::Allocator { - let module = unsafe { B::codegen(cgcx, &diag_handler, module, module_config)? }; + let module = unsafe { B::codegen(cgcx, &dcx, module, module_config)? }; Ok(WorkItemResult::Finished(module)) } else { Ok(WorkItemResult::NeedsLink(module)) @@ -990,7 +986,7 @@ pub struct CguMessage; type DiagnosticArgName<'source> = Cow<'source, str>; struct Diagnostic { - msg: Vec<(DiagnosticMessage, Style)>, + msgs: Vec<(DiagnosticMessage, Style)>, args: FxHashMap<DiagnosticArgName<'static>, rustc_errors::DiagnosticArgValue<'static>>, code: Option<DiagnosticId>, lvl: Level, @@ -1595,11 +1591,10 @@ fn start_executing_work<B: ExtraBackendMethods>( let needs_link = mem::take(&mut needs_link); if !needs_link.is_empty() { assert!(compiled_modules.is_empty()); - let diag_handler = cgcx.create_diag_handler(); - let module = B::run_link(&cgcx, &diag_handler, needs_link).map_err(|_| ())?; + let dcx = cgcx.create_dcx(); + let module = B::run_link(&cgcx, &dcx, needs_link).map_err(|_| ())?; let module = unsafe { - B::codegen(&cgcx, &diag_handler, module, cgcx.config(ModuleKind::Regular)) - .map_err(|_| ())? + B::codegen(&cgcx, &dcx, module, cgcx.config(ModuleKind::Regular)).map_err(|_| ())? }; compiled_modules.push(module); } @@ -1804,14 +1799,14 @@ impl Emitter for SharedEmitter { let args: FxHashMap<Cow<'_, str>, rustc_errors::DiagnosticArgValue<'_>> = diag.args().map(|(name, arg)| (name.clone(), arg.clone())).collect(); drop(self.sender.send(SharedEmitterMessage::Diagnostic(Diagnostic { - msg: diag.message.clone(), + msgs: diag.messages.clone(), args: args.clone(), code: diag.code.clone(), lvl: diag.level(), }))); for child in &diag.children { drop(self.sender.send(SharedEmitterMessage::Diagnostic(Diagnostic { - msg: child.message.clone(), + msgs: child.messages.clone(), args: args.clone(), code: None, lvl: child.level, @@ -1842,23 +1837,23 @@ impl SharedEmitterMain { match message { Ok(SharedEmitterMessage::Diagnostic(diag)) => { - let handler = sess.diagnostic(); - let mut d = rustc_errors::Diagnostic::new_with_messages(diag.lvl, diag.msg); + let dcx = sess.dcx(); + let mut d = rustc_errors::Diagnostic::new_with_messages(diag.lvl, diag.msgs); if let Some(code) = diag.code { d.code(code); } d.replace_args(diag.args); - handler.emit_diagnostic(d); + dcx.emit_diagnostic(d); } Ok(SharedEmitterMessage::InlineAsmError(cookie, msg, level, source)) => { - let msg = msg.strip_prefix("error: ").unwrap_or(&msg).to_string(); - - let mut err = match level { - Level::Error { lint: false } => sess.struct_err(msg).forget_guarantee(), - Level::Warning(_) => sess.struct_warn(msg), - Level::Note => sess.struct_note(msg), + let err_level = match level { + Level::Error { lint: false } => rustc_errors::Level::Error { lint: false }, + Level::Warning(_) => rustc_errors::Level::Warning(None), + Level::Note => rustc_errors::Level::Note, _ => bug!("Invalid inline asm diagnostic level"), }; + let msg = msg.strip_prefix("error: ").unwrap_or(&msg).to_string(); + let mut err = DiagnosticBuilder::<()>::new(sess.dcx(), err_level, msg); // If the cookie is 0 then we don't have span information. if cookie != 0 { diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index 015ea10d721..e529956b1ba 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -386,7 +386,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { [sym::arm, sym::a32] | [sym::arm, sym::t32] => { if !tcx.sess.target.has_thumb_interworking { struct_span_err!( - tcx.sess.diagnostic(), + tcx.sess.dcx(), attr.span, E0779, "target does not support `#[instruction_set]`" @@ -403,7 +403,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { } _ => { struct_span_err!( - tcx.sess.diagnostic(), + tcx.sess.dcx(), attr.span, E0779, "invalid instruction set specified", @@ -415,7 +415,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { } [] => { struct_span_err!( - tcx.sess.diagnostic(), + tcx.sess.dcx(), attr.span, E0778, "`#[instruction_set]` requires an argument" @@ -425,7 +425,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { } _ => { struct_span_err!( - tcx.sess.diagnostic(), + tcx.sess.dcx(), attr.span, E0779, "cannot specify more than one instruction set" @@ -443,7 +443,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { rustc_attr::parse_alignment(&literal.kind) .map_err(|msg| { struct_span_err!( - tcx.sess.diagnostic(), + tcx.sess.dcx(), attr.span, E0589, "invalid `repr(align)` attribute: {}", @@ -469,27 +469,17 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { Some(MetaItemKind::List(ref items)) => { inline_span = Some(attr.span); if items.len() != 1 { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0534, - "expected one argument" - ) - .emit(); + struct_span_err!(tcx.sess.dcx(), attr.span, E0534, "expected one argument") + .emit(); InlineAttr::None } else if list_contains_name(items, sym::always) { InlineAttr::Always } else if list_contains_name(items, sym::never) { InlineAttr::Never } else { - struct_span_err!( - tcx.sess.diagnostic(), - items[0].span(), - E0535, - "invalid argument" - ) - .help("valid inline arguments are `always` and `never`") - .emit(); + struct_span_err!(tcx.sess.dcx(), items[0].span(), E0535, "invalid argument") + .help("valid inline arguments are `always` and `never`") + .emit(); InlineAttr::None } @@ -503,7 +493,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { if !attr.has_name(sym::optimize) { return ia; } - let err = |sp, s| struct_span_err!(tcx.sess.diagnostic(), sp, E0722, "{}", s).emit(); + let err = |sp, s| struct_span_err!(tcx.sess.dcx(), sp, E0722, "{}", s).emit(); match attr.meta_kind() { Some(MetaItemKind::Word) => { err(attr.span, "expected one argument"); diff --git a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs index dda30046bfb..2ecc5ad4fe4 100644 --- a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs +++ b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs @@ -15,7 +15,7 @@ use rustc_data_structures::fx::FxHashSet; use rustc_data_structures::stable_hasher::{Hash64, HashStable, StableHasher}; use rustc_hir::def_id::DefId; use rustc_hir::definitions::{DefPathData, DefPathDataName, DisambiguatedDefPathData}; -use rustc_hir::{CoroutineKind, CoroutineSource, Mutability}; +use rustc_hir::{CoroutineDesugaring, CoroutineKind, CoroutineSource, Mutability}; use rustc_middle::ty::layout::{IntegerExt, TyAndLayout}; use rustc_middle::ty::{self, ExistentialProjection, ParamEnv, Ty, TyCtxt}; use rustc_middle::ty::{GenericArgKind, GenericArgsRef}; @@ -560,15 +560,31 @@ pub fn push_item_name(tcx: TyCtxt<'_>, def_id: DefId, qualified: bool, output: & fn coroutine_kind_label(coroutine_kind: Option<CoroutineKind>) -> &'static str { match coroutine_kind { - Some(CoroutineKind::Gen(CoroutineSource::Block)) => "gen_block", - Some(CoroutineKind::Gen(CoroutineSource::Closure)) => "gen_closure", - Some(CoroutineKind::Gen(CoroutineSource::Fn)) => "gen_fn", - Some(CoroutineKind::Async(CoroutineSource::Block)) => "async_block", - Some(CoroutineKind::Async(CoroutineSource::Closure)) => "async_closure", - Some(CoroutineKind::Async(CoroutineSource::Fn)) => "async_fn", - Some(CoroutineKind::AsyncGen(CoroutineSource::Block)) => "async_gen_block", - Some(CoroutineKind::AsyncGen(CoroutineSource::Closure)) => "async_gen_closure", - Some(CoroutineKind::AsyncGen(CoroutineSource::Fn)) => "async_gen_fn", + Some(CoroutineKind::Desugared(CoroutineDesugaring::Gen, CoroutineSource::Block)) => { + "gen_block" + } + Some(CoroutineKind::Desugared(CoroutineDesugaring::Gen, CoroutineSource::Closure)) => { + "gen_closure" + } + Some(CoroutineKind::Desugared(CoroutineDesugaring::Gen, CoroutineSource::Fn)) => "gen_fn", + Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Block)) => { + "async_block" + } + Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Closure)) => { + "async_closure" + } + Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Fn)) => { + "async_fn" + } + Some(CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, CoroutineSource::Block)) => { + "async_gen_block" + } + Some(CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, CoroutineSource::Closure)) => { + "async_gen_closure" + } + Some(CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, CoroutineSource::Fn)) => { + "async_gen_fn" + } Some(CoroutineKind::Coroutine) => "coroutine", None => "closure", } diff --git a/compiler/rustc_codegen_ssa/src/errors.rs b/compiler/rustc_codegen_ssa/src/errors.rs index ed6ac9f9c5d..2b628d2aa69 100644 --- a/compiler/rustc_codegen_ssa/src/errors.rs +++ b/compiler/rustc_codegen_ssa/src/errors.rs @@ -4,8 +4,8 @@ use crate::assert_module_sources::CguReuse; use crate::back::command::Command; use crate::fluent_generated as fluent; use rustc_errors::{ - DiagnosticArgValue, DiagnosticBuilder, ErrorGuaranteed, Handler, IntoDiagnostic, - IntoDiagnosticArg, + DiagCtxt, DiagnosticArgValue, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, + IntoDiagnosticArg, Level, }; use rustc_macros::Diagnostic; use rustc_middle::ty::layout::LayoutError; @@ -209,193 +209,193 @@ pub enum LinkRlibError { pub struct ThorinErrorWrapper(pub thorin::Error); -impl IntoDiagnostic<'_> for ThorinErrorWrapper { - fn into_diagnostic(self, handler: &Handler) -> DiagnosticBuilder<'_, ErrorGuaranteed> { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for ThorinErrorWrapper { + fn into_diagnostic(self, dcx: &DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let build = |msg| DiagnosticBuilder::new(dcx, level, msg); let mut diag; match self.0 { thorin::Error::ReadInput(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_read_input_failure); + diag = build(fluent::codegen_ssa_thorin_read_input_failure); diag } thorin::Error::ParseFileKind(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_parse_input_file_kind); + diag = build(fluent::codegen_ssa_thorin_parse_input_file_kind); diag } thorin::Error::ParseObjectFile(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_parse_input_object_file); + diag = build(fluent::codegen_ssa_thorin_parse_input_object_file); diag } thorin::Error::ParseArchiveFile(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_parse_input_archive_file); + diag = build(fluent::codegen_ssa_thorin_parse_input_archive_file); diag } thorin::Error::ParseArchiveMember(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_parse_archive_member); + diag = build(fluent::codegen_ssa_thorin_parse_archive_member); diag } thorin::Error::InvalidInputKind => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_invalid_input_kind); + diag = build(fluent::codegen_ssa_thorin_invalid_input_kind); diag } thorin::Error::DecompressData(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_decompress_data); + diag = build(fluent::codegen_ssa_thorin_decompress_data); diag } thorin::Error::NamelessSection(_, offset) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_section_without_name); + diag = build(fluent::codegen_ssa_thorin_section_without_name); diag.set_arg("offset", format!("0x{offset:08x}")); diag } thorin::Error::RelocationWithInvalidSymbol(section, offset) => { - diag = - handler.struct_err(fluent::codegen_ssa_thorin_relocation_with_invalid_symbol); + diag = build(fluent::codegen_ssa_thorin_relocation_with_invalid_symbol); diag.set_arg("section", section); diag.set_arg("offset", format!("0x{offset:08x}")); diag } thorin::Error::MultipleRelocations(section, offset) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_multiple_relocations); + diag = build(fluent::codegen_ssa_thorin_multiple_relocations); diag.set_arg("section", section); diag.set_arg("offset", format!("0x{offset:08x}")); diag } thorin::Error::UnsupportedRelocation(section, offset) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_unsupported_relocation); + diag = build(fluent::codegen_ssa_thorin_unsupported_relocation); diag.set_arg("section", section); diag.set_arg("offset", format!("0x{offset:08x}")); diag } thorin::Error::MissingDwoName(id) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_missing_dwo_name); + diag = build(fluent::codegen_ssa_thorin_missing_dwo_name); diag.set_arg("id", format!("0x{id:08x}")); diag } thorin::Error::NoCompilationUnits => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_no_compilation_units); + diag = build(fluent::codegen_ssa_thorin_no_compilation_units); diag } thorin::Error::NoDie => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_no_die); + diag = build(fluent::codegen_ssa_thorin_no_die); diag } thorin::Error::TopLevelDieNotUnit => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_top_level_die_not_unit); + diag = build(fluent::codegen_ssa_thorin_top_level_die_not_unit); diag } thorin::Error::MissingRequiredSection(section) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_missing_required_section); + diag = build(fluent::codegen_ssa_thorin_missing_required_section); diag.set_arg("section", section); diag } thorin::Error::ParseUnitAbbreviations(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_parse_unit_abbreviations); + diag = build(fluent::codegen_ssa_thorin_parse_unit_abbreviations); diag } thorin::Error::ParseUnitAttribute(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_parse_unit_attribute); + diag = build(fluent::codegen_ssa_thorin_parse_unit_attribute); diag } thorin::Error::ParseUnitHeader(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_parse_unit_header); + diag = build(fluent::codegen_ssa_thorin_parse_unit_header); diag } thorin::Error::ParseUnit(_) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_parse_unit); + diag = build(fluent::codegen_ssa_thorin_parse_unit); diag } thorin::Error::IncompatibleIndexVersion(section, format, actual) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_incompatible_index_version); + diag = build(fluent::codegen_ssa_thorin_incompatible_index_version); diag.set_arg("section", section); diag.set_arg("actual", actual); diag.set_arg("format", format); diag } thorin::Error::OffsetAtIndex(_, index) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_offset_at_index); + diag = build(fluent::codegen_ssa_thorin_offset_at_index); diag.set_arg("index", index); diag } thorin::Error::StrAtOffset(_, offset) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_str_at_offset); + diag = build(fluent::codegen_ssa_thorin_str_at_offset); diag.set_arg("offset", format!("0x{offset:08x}")); diag } thorin::Error::ParseIndex(_, section) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_parse_index); + diag = build(fluent::codegen_ssa_thorin_parse_index); diag.set_arg("section", section); diag } thorin::Error::UnitNotInIndex(unit) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_unit_not_in_index); + diag = build(fluent::codegen_ssa_thorin_unit_not_in_index); diag.set_arg("unit", format!("0x{unit:08x}")); diag } thorin::Error::RowNotInIndex(_, row) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_row_not_in_index); + diag = build(fluent::codegen_ssa_thorin_row_not_in_index); diag.set_arg("row", row); diag } thorin::Error::SectionNotInRow => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_section_not_in_row); + diag = build(fluent::codegen_ssa_thorin_section_not_in_row); diag } thorin::Error::EmptyUnit(unit) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_empty_unit); + diag = build(fluent::codegen_ssa_thorin_empty_unit); diag.set_arg("unit", format!("0x{unit:08x}")); diag } thorin::Error::MultipleDebugInfoSection => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_multiple_debug_info_section); + diag = build(fluent::codegen_ssa_thorin_multiple_debug_info_section); diag } thorin::Error::MultipleDebugTypesSection => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_multiple_debug_types_section); + diag = build(fluent::codegen_ssa_thorin_multiple_debug_types_section); diag } thorin::Error::NotSplitUnit => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_not_split_unit); + diag = build(fluent::codegen_ssa_thorin_not_split_unit); diag } thorin::Error::DuplicateUnit(unit) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_duplicate_unit); + diag = build(fluent::codegen_ssa_thorin_duplicate_unit); diag.set_arg("unit", format!("0x{unit:08x}")); diag } thorin::Error::MissingReferencedUnit(unit) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_missing_referenced_unit); + diag = build(fluent::codegen_ssa_thorin_missing_referenced_unit); diag.set_arg("unit", format!("0x{unit:08x}")); diag } thorin::Error::NoOutputObjectCreated => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_not_output_object_created); + diag = build(fluent::codegen_ssa_thorin_not_output_object_created); diag } thorin::Error::MixedInputEncodings => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_mixed_input_encodings); + diag = build(fluent::codegen_ssa_thorin_mixed_input_encodings); diag } thorin::Error::Io(e) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_io); + diag = build(fluent::codegen_ssa_thorin_io); diag.set_arg("error", format!("{e}")); diag } thorin::Error::ObjectRead(e) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_object_read); + diag = build(fluent::codegen_ssa_thorin_object_read); diag.set_arg("error", format!("{e}")); diag } thorin::Error::ObjectWrite(e) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_object_write); + diag = build(fluent::codegen_ssa_thorin_object_write); diag.set_arg("error", format!("{e}")); diag } thorin::Error::GimliRead(e) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_gimli_read); + diag = build(fluent::codegen_ssa_thorin_gimli_read); diag.set_arg("error", format!("{e}")); diag } thorin::Error::GimliWrite(e) => { - diag = handler.struct_err(fluent::codegen_ssa_thorin_gimli_write); + diag = build(fluent::codegen_ssa_thorin_gimli_write); diag.set_arg("error", format!("{e}")); diag } @@ -411,9 +411,9 @@ pub struct LinkingFailed<'a> { pub escaped_output: String, } -impl IntoDiagnostic<'_> for LinkingFailed<'_> { - fn into_diagnostic(self, handler: &Handler) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::codegen_ssa_linking_failed); +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for LinkingFailed<'_> { + fn into_diagnostic(self, dcx: &DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = DiagnosticBuilder::new(dcx, level, fluent::codegen_ssa_linking_failed); diag.set_arg("linker_path", format!("{}", self.linker_path.display())); diag.set_arg("exit_status", format!("{}", self.exit_status)); diff --git a/compiler/rustc_codegen_ssa/src/mir/operand.rs b/compiler/rustc_codegen_ssa/src/mir/operand.rs index e8c58f6b6f8..794cbd315b7 100644 --- a/compiler/rustc_codegen_ssa/src/mir/operand.rs +++ b/compiler/rustc_codegen_ssa/src/mir/operand.rs @@ -132,7 +132,7 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> { offset: Size, ) -> Self { let alloc_align = alloc.inner().align; - assert_eq!(alloc_align, layout.align.abi); + assert!(alloc_align >= layout.align.abi); let read_scalar = |start, size, s: abi::Scalar, ty| { match alloc.0.read_scalar( diff --git a/compiler/rustc_codegen_ssa/src/traits/write.rs b/compiler/rustc_codegen_ssa/src/traits/write.rs index ecf5095d8a3..048540894ac 100644 --- a/compiler/rustc_codegen_ssa/src/traits/write.rs +++ b/compiler/rustc_codegen_ssa/src/traits/write.rs @@ -2,7 +2,7 @@ use crate::back::lto::{LtoModuleCodegen, SerializedModule, ThinModule}; use crate::back::write::{CodegenContext, FatLtoInput, ModuleConfig}; use crate::{CompiledModule, ModuleCodegen}; -use rustc_errors::{FatalError, Handler}; +use rustc_errors::{DiagCtxt, FatalError}; use rustc_middle::dep_graph::WorkProduct; pub trait WriteBackendMethods: 'static + Sized + Clone { @@ -16,7 +16,7 @@ pub trait WriteBackendMethods: 'static + Sized + Clone { /// Merge all modules into main_module and returning it fn run_link( cgcx: &CodegenContext<Self>, - diag_handler: &Handler, + dcx: &DiagCtxt, modules: Vec<ModuleCodegen<Self::Module>>, ) -> Result<ModuleCodegen<Self::Module>, FatalError>; /// Performs fat LTO by merging all modules into a single one and returning it @@ -38,7 +38,7 @@ pub trait WriteBackendMethods: 'static + Sized + Clone { fn print_statistics(&self); unsafe fn optimize( cgcx: &CodegenContext<Self>, - diag_handler: &Handler, + dcx: &DiagCtxt, module: &ModuleCodegen<Self::Module>, config: &ModuleConfig, ) -> Result<(), FatalError>; @@ -52,7 +52,7 @@ pub trait WriteBackendMethods: 'static + Sized + Clone { ) -> Result<ModuleCodegen<Self::Module>, FatalError>; unsafe fn codegen( cgcx: &CodegenContext<Self>, - diag_handler: &Handler, + dcx: &DiagCtxt, module: ModuleCodegen<Self::Module>, config: &ModuleConfig, ) -> Result<CompiledModule, FatalError>; diff --git a/compiler/rustc_const_eval/src/const_eval/error.rs b/compiler/rustc_const_eval/src/const_eval/error.rs index 26cf3b3f2b0..2cafbb9331d 100644 --- a/compiler/rustc_const_eval/src/const_eval/error.rs +++ b/compiler/rustc_const_eval/src/const_eval/error.rs @@ -6,7 +6,7 @@ use rustc_middle::mir::AssertKind; use rustc_middle::query::TyCtxtAt; use rustc_middle::ty::TyCtxt; use rustc_middle::ty::{layout::LayoutError, ConstInt}; -use rustc_span::{ErrorGuaranteed, Span, Symbol, DUMMY_SP}; +use rustc_span::{Span, Symbol, DUMMY_SP}; use super::{CompileTimeInterpreter, InterpCx}; use crate::errors::{self, FrameNote, ReportErrorExt}; @@ -133,7 +133,7 @@ pub(super) fn report<'tcx, C, F, E>( where C: FnOnce() -> (Span, Vec<FrameNote>), F: FnOnce(Span, Vec<FrameNote>) -> E, - E: IntoDiagnostic<'tcx, ErrorGuaranteed>, + E: IntoDiagnostic<'tcx>, { // Special handling for certain errors match error { @@ -154,7 +154,7 @@ where let mut err = tcx.sess.create_err(err); let msg = error.diagnostic_message(); - error.add_args(tcx.sess.diagnostic(), &mut err); + error.add_args(tcx.sess.dcx(), &mut err); // Use *our* span to label the interp error err.span_label(our_span, msg); diff --git a/compiler/rustc_const_eval/src/const_eval/valtrees.rs b/compiler/rustc_const_eval/src/const_eval/valtrees.rs index 854fe9a0765..707bb8d8933 100644 --- a/compiler/rustc_const_eval/src/const_eval/valtrees.rs +++ b/compiler/rustc_const_eval/src/const_eval/valtrees.rs @@ -341,7 +341,7 @@ fn valtree_into_mplace<'tcx>( ty::FnDef(_, _) => { // Zero-sized type, nothing to do. } - ty::Bool | ty::Int(_) | ty::Uint(_) | ty::Float(_) | ty::Char => { + ty::Bool | ty::Int(_) | ty::Uint(_) | ty::Float(_) | ty::Char | ty::RawPtr(..) => { let scalar_int = valtree.unwrap_leaf(); debug!("writing trivial valtree {:?} to place {:?}", scalar_int, place); ecx.write_immediate(Immediate::Scalar(scalar_int.into()), place).unwrap(); diff --git a/compiler/rustc_const_eval/src/errors.rs b/compiler/rustc_const_eval/src/errors.rs index 46fb64fd5b3..eb9bf52676a 100644 --- a/compiler/rustc_const_eval/src/errors.rs +++ b/compiler/rustc_const_eval/src/errors.rs @@ -1,6 +1,6 @@ use rustc_errors::{ - DiagnosticArgValue, DiagnosticBuilder, DiagnosticMessage, EmissionGuarantee, Handler, - IntoDiagnostic, + DiagCtxt, DiagnosticArgValue, DiagnosticBuilder, DiagnosticMessage, EmissionGuarantee, + IntoDiagnostic, Level, }; use rustc_hir::ConstContext; use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; @@ -432,11 +432,7 @@ pub struct UndefinedBehavior { pub trait ReportErrorExt { /// Returns the diagnostic message for this error. fn diagnostic_message(&self) -> DiagnosticMessage; - fn add_args<G: EmissionGuarantee>( - self, - handler: &Handler, - builder: &mut DiagnosticBuilder<'_, G>, - ); + fn add_args<G: EmissionGuarantee>(self, dcx: &DiagCtxt, builder: &mut DiagnosticBuilder<'_, G>); fn debug(self) -> String where @@ -444,17 +440,17 @@ pub trait ReportErrorExt { { ty::tls::with(move |tcx| { let mut builder = tcx.sess.struct_allow(DiagnosticMessage::Str(String::new().into())); - let handler = tcx.sess.diagnostic(); + let dcx = tcx.sess.dcx(); let message = self.diagnostic_message(); - self.add_args(handler, &mut builder); - let s = handler.eagerly_translate_to_string(message, builder.args()); + self.add_args(dcx, &mut builder); + let s = dcx.eagerly_translate_to_string(message, builder.args()); builder.cancel(); s }) } } -fn bad_pointer_message(msg: CheckInAllocMsg, handler: &Handler) -> String { +fn bad_pointer_message(msg: CheckInAllocMsg, dcx: &DiagCtxt) -> String { use crate::fluent_generated::*; let msg = match msg { @@ -464,7 +460,7 @@ fn bad_pointer_message(msg: CheckInAllocMsg, handler: &Handler) -> String { CheckInAllocMsg::InboundsTest => const_eval_in_bounds_test, }; - handler.eagerly_translate_to_string(msg, [].into_iter()) + dcx.eagerly_translate_to_string(msg, [].into_iter()) } impl<'a> ReportErrorExt for UndefinedBehaviorInfo<'a> { @@ -514,7 +510,7 @@ impl<'a> ReportErrorExt for UndefinedBehaviorInfo<'a> { fn add_args<G: EmissionGuarantee>( self, - handler: &Handler, + dcx: &DiagCtxt, builder: &mut DiagnosticBuilder<'_, G>, ) { use UndefinedBehaviorInfo::*; @@ -525,7 +521,7 @@ impl<'a> ReportErrorExt for UndefinedBehaviorInfo<'a> { builder.set_arg(name, value); }); } - ValidationError(e) => e.add_args(handler, builder), + ValidationError(e) => e.add_args(dcx, builder), Unreachable | DivisionByZero @@ -549,7 +545,7 @@ impl<'a> ReportErrorExt for UndefinedBehaviorInfo<'a> { PointerUseAfterFree(alloc_id, msg) => { builder .set_arg("alloc_id", alloc_id) - .set_arg("bad_pointer_message", bad_pointer_message(msg, handler)); + .set_arg("bad_pointer_message", bad_pointer_message(msg, dcx)); } PointerOutOfBounds { alloc_id, alloc_size, ptr_offset, ptr_size, msg } => { builder @@ -557,14 +553,14 @@ impl<'a> ReportErrorExt for UndefinedBehaviorInfo<'a> { .set_arg("alloc_size", alloc_size.bytes()) .set_arg("ptr_offset", ptr_offset) .set_arg("ptr_size", ptr_size.bytes()) - .set_arg("bad_pointer_message", bad_pointer_message(msg, handler)); + .set_arg("bad_pointer_message", bad_pointer_message(msg, dcx)); } DanglingIntPointer(ptr, msg) => { if ptr != 0 { builder.set_arg("pointer", format!("{ptr:#x}[noalloc]")); } - builder.set_arg("bad_pointer_message", bad_pointer_message(msg, handler)); + builder.set_arg("bad_pointer_message", bad_pointer_message(msg, dcx)); } AlignmentCheckFailed(Misalignment { required, has }, msg) => { builder.set_arg("required", required.bytes()); @@ -678,7 +674,7 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> { } } - fn add_args<G: EmissionGuarantee>(self, handler: &Handler, err: &mut DiagnosticBuilder<'_, G>) { + fn add_args<G: EmissionGuarantee>(self, dcx: &DiagCtxt, err: &mut DiagnosticBuilder<'_, G>) { use crate::fluent_generated as fluent; use rustc_middle::mir::interpret::ValidationErrorKind::*; @@ -688,12 +684,12 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> { } let message = if let Some(path) = self.path { - handler.eagerly_translate_to_string( + dcx.eagerly_translate_to_string( fluent::const_eval_validation_front_matter_invalid_value_with_path, [("path".into(), DiagnosticArgValue::Str(path.into()))].iter().map(|(a, b)| (a, b)), ) } else { - handler.eagerly_translate_to_string( + dcx.eagerly_translate_to_string( fluent::const_eval_validation_front_matter_invalid_value, [].into_iter(), ) @@ -704,7 +700,7 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> { fn add_range_arg<G: EmissionGuarantee>( r: WrappingRange, max_hi: u128, - handler: &Handler, + dcx: &DiagCtxt, err: &mut DiagnosticBuilder<'_, G>, ) { let WrappingRange { start: lo, end: hi } = r; @@ -728,7 +724,7 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> { ("hi".into(), DiagnosticArgValue::Str(hi.to_string().into())), ]; let args = args.iter().map(|(a, b)| (a, b)); - let message = handler.eagerly_translate_to_string(msg, args); + let message = dcx.eagerly_translate_to_string(msg, args); err.set_arg("in_range", message); } @@ -750,7 +746,7 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> { ExpectedKind::EnumTag => fluent::const_eval_validation_expected_enum_tag, ExpectedKind::Str => fluent::const_eval_validation_expected_str, }; - let msg = handler.eagerly_translate_to_string(msg, [].into_iter()); + let msg = dcx.eagerly_translate_to_string(msg, [].into_iter()); err.set_arg("expected", msg); } InvalidEnumTag { value } @@ -761,11 +757,11 @@ impl<'tcx> ReportErrorExt for ValidationErrorInfo<'tcx> { err.set_arg("value", value); } NullablePtrOutOfRange { range, max_value } | PtrOutOfRange { range, max_value } => { - add_range_arg(range, max_value, handler, err) + add_range_arg(range, max_value, dcx, err) } OutOfRange { range, max_value, value } => { err.set_arg("value", value); - add_range_arg(range, max_value, handler, err); + add_range_arg(range, max_value, dcx, err); } UnalignedPtr { required_bytes, found_bytes, .. } => { err.set_arg("required_bytes", required_bytes); @@ -804,7 +800,7 @@ impl ReportErrorExt for UnsupportedOpInfo { UnsupportedOpInfo::ReadExternStatic(_) => const_eval_read_extern_static, } } - fn add_args<G: EmissionGuarantee>(self, _: &Handler, builder: &mut DiagnosticBuilder<'_, G>) { + fn add_args<G: EmissionGuarantee>(self, _: &DiagCtxt, builder: &mut DiagnosticBuilder<'_, G>) { use crate::fluent_generated::*; use UnsupportedOpInfo::*; @@ -839,14 +835,14 @@ impl<'tcx> ReportErrorExt for InterpError<'tcx> { } fn add_args<G: EmissionGuarantee>( self, - handler: &Handler, + dcx: &DiagCtxt, builder: &mut DiagnosticBuilder<'_, G>, ) { match self { - InterpError::UndefinedBehavior(ub) => ub.add_args(handler, builder), - InterpError::Unsupported(e) => e.add_args(handler, builder), - InterpError::InvalidProgram(e) => e.add_args(handler, builder), - InterpError::ResourceExhaustion(e) => e.add_args(handler, builder), + InterpError::UndefinedBehavior(ub) => ub.add_args(dcx, builder), + InterpError::Unsupported(e) => e.add_args(dcx, builder), + InterpError::InvalidProgram(e) => e.add_args(dcx, builder), + InterpError::ResourceExhaustion(e) => e.add_args(dcx, builder), InterpError::MachineStop(e) => e.add_args(&mut |name, value| { builder.set_arg(name, value); }), @@ -871,7 +867,7 @@ impl<'tcx> ReportErrorExt for InvalidProgramInfo<'tcx> { } fn add_args<G: EmissionGuarantee>( self, - handler: &Handler, + dcx: &DiagCtxt, builder: &mut DiagnosticBuilder<'_, G>, ) { match self { @@ -879,7 +875,10 @@ impl<'tcx> ReportErrorExt for InvalidProgramInfo<'tcx> { | InvalidProgramInfo::AlreadyReported(_) | InvalidProgramInfo::ConstPropNonsense => {} InvalidProgramInfo::Layout(e) => { - let diag: DiagnosticBuilder<'_, ()> = e.into_diagnostic().into_diagnostic(handler); + // The level doesn't matter, `diag` is consumed without it being used. + let dummy_level = Level::Bug; + let diag: DiagnosticBuilder<'_, ()> = + e.into_diagnostic().into_diagnostic(dcx, dummy_level); for (name, val) in diag.args() { builder.set_arg(name.clone(), val.clone()); } @@ -904,5 +903,5 @@ impl ReportErrorExt for ResourceExhaustionInfo { ResourceExhaustionInfo::AddressSpaceFull => const_eval_address_space_full, } } - fn add_args<G: EmissionGuarantee>(self, _: &Handler, _: &mut DiagnosticBuilder<'_, G>) {} + fn add_args<G: EmissionGuarantee>(self, _: &DiagCtxt, _: &mut DiagnosticBuilder<'_, G>) {} } diff --git a/compiler/rustc_const_eval/src/interpret/eval_context.rs b/compiler/rustc_const_eval/src/interpret/eval_context.rs index 847d6503f20..af8e5e7d151 100644 --- a/compiler/rustc_const_eval/src/interpret/eval_context.rs +++ b/compiler/rustc_const_eval/src/interpret/eval_context.rs @@ -473,12 +473,12 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { backtrace.print_backtrace(); // FIXME(fee1-dead), HACK: we want to use the error as title therefore we can just extract the // label and arguments from the InterpError. - let handler = self.tcx.sess.diagnostic(); + let dcx = self.tcx.sess.dcx(); #[allow(rustc::untranslatable_diagnostic)] let mut diag = self.tcx.sess.struct_allow(""); let msg = e.diagnostic_message(); - e.add_args(handler, &mut diag); - let s = handler.eagerly_translate_to_string(msg, diag.args()); + e.add_args(dcx, &mut diag); + let s = dcx.eagerly_translate_to_string(msg, diag.args()); diag.cancel(); s } diff --git a/compiler/rustc_const_eval/src/interpret/memory.rs b/compiler/rustc_const_eval/src/interpret/memory.rs index 3fde6ae9b8e..7ff970661d6 100644 --- a/compiler/rustc_const_eval/src/interpret/memory.rs +++ b/compiler/rustc_const_eval/src/interpret/memory.rs @@ -165,6 +165,8 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { // We need to handle `extern static`. match self.tcx.try_get_global_alloc(alloc_id) { Some(GlobalAlloc::Static(def_id)) if self.tcx.is_thread_local_static(def_id) => { + // Thread-local statics do not have a constant address. They *must* be accessed via + // `ThreadLocalRef`; we can never have a pointer to them as a regular constant value. bug!("global memory cannot point to thread-local static") } Some(GlobalAlloc::Static(def_id)) if self.tcx.is_foreign_item(def_id) => { @@ -539,6 +541,8 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { None => throw_ub!(PointerUseAfterFree(id, CheckInAllocMsg::MemoryAccessTest)), Some(GlobalAlloc::Static(def_id)) => { assert!(self.tcx.is_static(def_id)); + // Thread-local statics do not have a constant address. They *must* be accessed via + // `ThreadLocalRef`; we can never have a pointer to them as a regular constant value. assert!(!self.tcx.is_thread_local_static(def_id)); // Notice that every static has two `AllocId` that will resolve to the same // thing here: one maps to `GlobalAlloc::Static`, this is the "lazy" ID, @@ -740,6 +744,8 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { match self.tcx.try_get_global_alloc(id) { Some(GlobalAlloc::Static(def_id)) => { assert!(self.tcx.is_static(def_id)); + // Thread-local statics do not have a constant address. They *must* be accessed via + // `ThreadLocalRef`; we can never have a pointer to them as a regular constant value. assert!(!self.tcx.is_thread_local_static(def_id)); // Use size and align of the type. let ty = self diff --git a/compiler/rustc_const_eval/src/transform/check_consts/check.rs b/compiler/rustc_const_eval/src/transform/check_consts/check.rs index bb17602d3ba..bf7adf8f44c 100644 --- a/compiler/rustc_const_eval/src/transform/check_consts/check.rs +++ b/compiler/rustc_const_eval/src/transform/check_consts/check.rs @@ -5,17 +5,15 @@ use rustc_hir as hir; use rustc_hir::def_id::DefId; use rustc_index::bit_set::BitSet; use rustc_infer::infer::TyCtxtInferExt; -use rustc_infer::traits::{ImplSource, Obligation, ObligationCause}; +use rustc_infer::traits::ObligationCause; use rustc_middle::mir::visit::{MutatingUseContext, NonMutatingUseContext, PlaceContext, Visitor}; use rustc_middle::mir::*; -use rustc_middle::traits::BuiltinImplSource; -use rustc_middle::ty::GenericArgs; -use rustc_middle::ty::{self, adjustment::PointerCoercion, Instance, InstanceDef, Ty, TyCtxt}; -use rustc_middle::ty::{TraitRef, TypeVisitableExt}; +use rustc_middle::ty::{self, adjustment::PointerCoercion, Ty, TyCtxt}; +use rustc_middle::ty::{Instance, InstanceDef, TypeVisitableExt}; use rustc_mir_dataflow::Analysis; use rustc_span::{sym, Span, Symbol}; use rustc_trait_selection::traits::error_reporting::TypeErrCtxtExt as _; -use rustc_trait_selection::traits::{self, ObligationCauseCode, ObligationCtxt, SelectionContext}; +use rustc_trait_selection::traits::{self, ObligationCauseCode, ObligationCtxt}; use rustc_type_ir::visit::{TypeSuperVisitable, TypeVisitor}; use std::mem; @@ -278,7 +276,7 @@ impl<'mir, 'tcx> Checker<'mir, 'tcx> { let secondary_errors = mem::take(&mut self.secondary_errors); if self.error_emitted.is_none() { for error in secondary_errors { - self.tcx.sess.diagnostic().emit_diagnostic(error); + self.tcx.sess.dcx().emit_diagnostic(error); } } else { assert!(self.tcx.sess.has_errors().is_some()); @@ -464,8 +462,12 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> { Rvalue::Aggregate(kind, ..) => { if let AggregateKind::Coroutine(def_id, ..) = kind.as_ref() - && let Some(coroutine_kind @ hir::CoroutineKind::Async(..)) = - self.tcx.coroutine_kind(def_id) + && let Some( + coroutine_kind @ hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Async, + _, + ), + ) = self.tcx.coroutine_kind(def_id) { self.check_op(ops::Coroutine(coroutine_kind)); } @@ -752,143 +754,43 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> { infcx.err_ctxt().report_fulfillment_errors(errors); } + let mut is_trait = false; // Attempting to call a trait method? - // FIXME(effects) do we need this? - if let Some(trait_id) = tcx.trait_of_item(callee) { + if tcx.trait_of_item(callee).is_some() { trace!("attempting to call a trait method"); - if !self.tcx.features().const_trait_impl { + // trait method calls are only permitted when `effects` is enabled. + // we don't error, since that is handled by typeck. We try to resolve + // the trait into the concrete method, and uses that for const stability + // checks. + // FIXME(effects) we might consider moving const stability checks to typeck as well. + if tcx.features().effects { + is_trait = true; + + if let Ok(Some(instance)) = + Instance::resolve(tcx, param_env, callee, fn_args) + && let InstanceDef::Item(def) = instance.def + { + // Resolve a trait method call to its concrete implementation, which may be in a + // `const` trait impl. This is only used for the const stability check below, since + // we want to look at the concrete impl's stability. + fn_args = instance.args; + callee = def; + } + } else { self.check_op(ops::FnCallNonConst { caller, callee, args: fn_args, span: *fn_span, call_source: *call_source, - feature: Some(sym::const_trait_impl), + feature: Some(if tcx.features().const_trait_impl { + sym::effects + } else { + sym::const_trait_impl + }), }); return; } - - let trait_ref = TraitRef::from_method(tcx, trait_id, fn_args); - let obligation = - Obligation::new(tcx, ObligationCause::dummy(), param_env, trait_ref); - - let implsrc = { - let infcx = tcx.infer_ctxt().build(); - let mut selcx = SelectionContext::new(&infcx); - selcx.select(&obligation) - }; - - match implsrc { - Ok(Some(ImplSource::Param(_))) if tcx.features().effects => { - debug!( - "const_trait_impl: provided {:?} via where-clause in {:?}", - trait_ref, param_env - ); - return; - } - // Closure: Fn{Once|Mut} - Ok(Some(ImplSource::Builtin(BuiltinImplSource::Misc, _))) - if trait_ref.self_ty().is_closure() - && tcx.fn_trait_kind_from_def_id(trait_id).is_some() => - { - let ty::Closure(closure_def_id, fn_args) = *trait_ref.self_ty().kind() - else { - unreachable!() - }; - if !tcx.is_const_fn_raw(closure_def_id) { - self.check_op(ops::FnCallNonConst { - caller, - callee, - args: fn_args, - span: *fn_span, - call_source: *call_source, - feature: None, - }); - - return; - } - } - Ok(Some(ImplSource::UserDefined(data))) => { - let callee_name = tcx.item_name(callee); - - if let hir::Constness::NotConst = tcx.constness(data.impl_def_id) { - self.check_op(ops::FnCallNonConst { - caller, - callee, - args: fn_args, - span: *fn_span, - call_source: *call_source, - feature: None, - }); - return; - } - - if let Some(&did) = tcx - .associated_item_def_ids(data.impl_def_id) - .iter() - .find(|did| tcx.item_name(**did) == callee_name) - { - // using internal args is ok here, since this is only - // used for the `resolve` call below - fn_args = GenericArgs::identity_for_item(tcx, did); - callee = did; - } - } - _ if !tcx.is_const_fn_raw(callee) => { - // At this point, it is only legal when the caller is in a trait - // marked with #[const_trait], and the callee is in the same trait. - let mut nonconst_call_permission = false; - if let Some(callee_trait) = tcx.trait_of_item(callee) - && tcx.has_attr(callee_trait, sym::const_trait) - && Some(callee_trait) == tcx.trait_of_item(caller.to_def_id()) - // Can only call methods when it's `<Self as TheTrait>::f`. - && tcx.types.self_param == fn_args.type_at(0) - { - nonconst_call_permission = true; - } - - if !nonconst_call_permission { - let obligation = Obligation::new( - tcx, - ObligationCause::dummy_with_span(*fn_span), - param_env, - trait_ref, - ); - - // improve diagnostics by showing what failed. Our requirements are stricter this time - // as we are going to error again anyways. - let infcx = tcx.infer_ctxt().build(); - if let Err(e) = implsrc { - infcx.err_ctxt().report_selection_error( - obligation.clone(), - &obligation, - &e, - ); - } - - self.check_op(ops::FnCallNonConst { - caller, - callee, - args: fn_args, - span: *fn_span, - call_source: *call_source, - feature: None, - }); - return; - } - } - _ => {} - } - - // Resolve a trait method call to its concrete implementation, which may be in a - // `const` trait impl. - let instance = Instance::resolve(tcx, param_env, callee, fn_args); - debug!("Resolving ({:?}) -> {:?}", callee, instance); - if let Ok(Some(func)) = instance { - if let InstanceDef::Item(def) = func.def { - callee = def; - } - } } // At this point, we are calling a function, `callee`, whose `DefId` is known... @@ -921,21 +823,16 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> { return; } - if !tcx.is_const_fn_raw(callee) { - if !tcx.is_const_default_method(callee) { - // To get to here we must have already found a const impl for the - // trait, but for it to still be non-const can be that the impl is - // using default method bodies. - self.check_op(ops::FnCallNonConst { - caller, - callee, - args: fn_args, - span: *fn_span, - call_source: *call_source, - feature: None, - }); - return; - } + if !tcx.is_const_fn_raw(callee) && !is_trait { + self.check_op(ops::FnCallNonConst { + caller, + callee, + args: fn_args, + span: *fn_span, + call_source: *call_source, + feature: None, + }); + return; } // If the `const fn` we are trying to call is not const-stable, ensure that we have diff --git a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs index 2de6362b9fe..532cd9c261f 100644 --- a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs +++ b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs @@ -2,7 +2,7 @@ use hir::def_id::LocalDefId; use hir::{ConstContext, LangItem}; -use rustc_errors::{error_code, DiagnosticBuilder, ErrorGuaranteed}; +use rustc_errors::{error_code, DiagnosticBuilder}; use rustc_hir as hir; use rustc_hir::def_id::DefId; use rustc_infer::infer::TyCtxtInferExt; @@ -48,11 +48,7 @@ pub trait NonConstOp<'tcx>: std::fmt::Debug { DiagnosticImportance::Primary } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx>; } #[derive(Debug)] @@ -66,11 +62,7 @@ impl<'tcx> NonConstOp<'tcx> for FloatingPointOp { } } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { feature_err( &ccx.tcx.sess.parse_sess, sym::const_fn_floating_point_arithmetic, @@ -84,11 +76,7 @@ impl<'tcx> NonConstOp<'tcx> for FloatingPointOp { #[derive(Debug)] pub struct FnCallIndirect; impl<'tcx> NonConstOp<'tcx> for FnCallIndirect { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx.sess.create_err(errors::UnallowedFnPointerCall { span, kind: ccx.const_kind() }) } } @@ -105,11 +93,7 @@ pub struct FnCallNonConst<'tcx> { } impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - _: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, _: Span) -> DiagnosticBuilder<'tcx> { let FnCallNonConst { caller, callee, args, span, call_source, feature } = *self; let ConstCx { tcx, param_env, .. } = *ccx; @@ -331,11 +315,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> { pub struct FnCallUnstable(pub DefId, pub Option<Symbol>); impl<'tcx> NonConstOp<'tcx> for FnCallUnstable { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { let FnCallUnstable(def_id, feature) = *self; let mut err = ccx @@ -359,20 +339,24 @@ impl<'tcx> NonConstOp<'tcx> for FnCallUnstable { pub struct Coroutine(pub hir::CoroutineKind); impl<'tcx> NonConstOp<'tcx> for Coroutine { fn status_in_item(&self, _: &ConstCx<'_, 'tcx>) -> Status { - if let hir::CoroutineKind::Async(hir::CoroutineSource::Block) = self.0 { + if let hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Async, + hir::CoroutineSource::Block, + ) = self.0 + { Status::Unstable(sym::const_async_blocks) } else { Status::Forbidden } } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { let msg = format!("{:#}s are not allowed in {}s", self.0, ccx.const_kind()); - if let hir::CoroutineKind::Async(hir::CoroutineSource::Block) = self.0 { + if let hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Async, + hir::CoroutineSource::Block, + ) = self.0 + { ccx.tcx.sess.create_feature_err( errors::UnallowedOpInConstContext { span, msg }, sym::const_async_blocks, @@ -386,11 +370,7 @@ impl<'tcx> NonConstOp<'tcx> for Coroutine { #[derive(Debug)] pub struct HeapAllocation; impl<'tcx> NonConstOp<'tcx> for HeapAllocation { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx.sess.create_err(errors::UnallowedHeapAllocations { span, kind: ccx.const_kind(), @@ -402,11 +382,7 @@ impl<'tcx> NonConstOp<'tcx> for HeapAllocation { #[derive(Debug)] pub struct InlineAsm; impl<'tcx> NonConstOp<'tcx> for InlineAsm { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx.sess.create_err(errors::UnallowedInlineAsm { span, kind: ccx.const_kind() }) } } @@ -417,11 +393,7 @@ pub struct LiveDrop<'tcx> { pub dropped_ty: Ty<'tcx>, } impl<'tcx> NonConstOp<'tcx> for LiveDrop<'tcx> { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx.sess.create_err(errors::LiveDrop { span, dropped_ty: self.dropped_ty, @@ -444,11 +416,7 @@ impl<'tcx> NonConstOp<'tcx> for TransientCellBorrow { // not additionally emit a feature gate error if activating the feature gate won't work. DiagnosticImportance::Secondary } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx .sess .create_feature_err(errors::InteriorMutabilityBorrow { span }, sym::const_refs_to_cell) @@ -461,11 +429,7 @@ impl<'tcx> NonConstOp<'tcx> for TransientCellBorrow { /// it in the future for static items. pub struct CellBorrow; impl<'tcx> NonConstOp<'tcx> for CellBorrow { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { // FIXME: Maybe a more elegant solution to this if else case if let hir::ConstContext::Static(_) = ccx.const_kind() { ccx.tcx.sess.create_err(errors::InteriorMutableDataRefer { @@ -502,11 +466,7 @@ impl<'tcx> NonConstOp<'tcx> for MutBorrow { DiagnosticImportance::Secondary } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { match self.0 { hir::BorrowKind::Raw => ccx.tcx.sess.create_err(errors::UnallowedMutableRefsRaw { span, @@ -530,11 +490,7 @@ impl<'tcx> NonConstOp<'tcx> for TransientMutBorrow { Status::Unstable(sym::const_mut_refs) } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { let kind = ccx.const_kind(); match self.0 { hir::BorrowKind::Raw => ccx.tcx.sess.create_feature_err( @@ -561,11 +517,7 @@ impl<'tcx> NonConstOp<'tcx> for MutDeref { DiagnosticImportance::Secondary } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx.sess.create_feature_err( errors::MutDerefErr { span, kind: ccx.const_kind() }, sym::const_mut_refs, @@ -577,11 +529,7 @@ impl<'tcx> NonConstOp<'tcx> for MutDeref { #[derive(Debug)] pub struct PanicNonStr; impl<'tcx> NonConstOp<'tcx> for PanicNonStr { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx.sess.create_err(errors::PanicNonStrErr { span }) } } @@ -592,11 +540,7 @@ impl<'tcx> NonConstOp<'tcx> for PanicNonStr { #[derive(Debug)] pub struct RawPtrComparison; impl<'tcx> NonConstOp<'tcx> for RawPtrComparison { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { // FIXME(const_trait_impl): revert to span_bug? ccx.tcx.sess.create_err(errors::RawPtrComparisonErr { span }) } @@ -609,11 +553,7 @@ impl<'tcx> NonConstOp<'tcx> for RawMutPtrDeref { Status::Unstable(sym::const_mut_refs) } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { feature_err( &ccx.tcx.sess.parse_sess, sym::const_mut_refs, @@ -629,11 +569,7 @@ impl<'tcx> NonConstOp<'tcx> for RawMutPtrDeref { #[derive(Debug)] pub struct RawPtrToIntCast; impl<'tcx> NonConstOp<'tcx> for RawPtrToIntCast { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx.sess.create_err(errors::RawPtrToIntErr { span }) } } @@ -650,11 +586,7 @@ impl<'tcx> NonConstOp<'tcx> for StaticAccess { } } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx.sess.create_err(errors::StaticAccessErr { span, kind: ccx.const_kind(), @@ -667,11 +599,7 @@ impl<'tcx> NonConstOp<'tcx> for StaticAccess { #[derive(Debug)] pub struct ThreadLocalAccess; impl<'tcx> NonConstOp<'tcx> for ThreadLocalAccess { - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { ccx.tcx.sess.create_err(errors::NonConstOpErr { span }) } } @@ -696,11 +624,7 @@ pub mod ty { } } - fn build_error( - &self, - ccx: &ConstCx<'_, 'tcx>, - span: Span, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> { feature_err( &ccx.tcx.sess.parse_sess, sym::const_mut_refs, diff --git a/compiler/rustc_const_eval/src/transform/validate.rs b/compiler/rustc_const_eval/src/transform/validate.rs index eaf4abf39b7..2f538cebaa6 100644 --- a/compiler/rustc_const_eval/src/transform/validate.rs +++ b/compiler/rustc_const_eval/src/transform/validate.rs @@ -8,9 +8,6 @@ use rustc_middle::mir::interpret::Scalar; use rustc_middle::mir::visit::{NonUseContext, PlaceContext, Visitor}; use rustc_middle::mir::*; use rustc_middle::ty::{self, InstanceDef, ParamEnv, Ty, TyCtxt, TypeVisitableExt, Variance}; -use rustc_mir_dataflow::impls::MaybeStorageLive; -use rustc_mir_dataflow::storage::always_storage_live_locals; -use rustc_mir_dataflow::{Analysis, ResultsCursor}; use rustc_target::abi::{Size, FIRST_VARIANT}; use rustc_target::spec::abi::Abi; @@ -51,12 +48,6 @@ impl<'tcx> MirPass<'tcx> for Validator { Reveal::All => tcx.param_env_reveal_all_normalized(def_id), }; - let always_live_locals = always_storage_live_locals(body); - let storage_liveness = MaybeStorageLive::new(std::borrow::Cow::Owned(always_live_locals)) - .into_engine(tcx, body) - .iterate_to_fixpoint() - .into_results_cursor(body); - let can_unwind = if mir_phase <= MirPhase::Runtime(RuntimePhase::Initial) { // In this case `AbortUnwindingCalls` haven't yet been executed. true @@ -83,7 +74,6 @@ impl<'tcx> MirPass<'tcx> for Validator { mir_phase, unwind_edge_count: 0, reachable_blocks: traversal::reachable_as_bitset(body), - storage_liveness, place_cache: FxHashSet::default(), value_cache: FxHashSet::default(), can_unwind, @@ -116,7 +106,6 @@ struct CfgChecker<'a, 'tcx> { mir_phase: MirPhase, unwind_edge_count: usize, reachable_blocks: BitSet<BasicBlock>, - storage_liveness: ResultsCursor<'a, 'tcx, MaybeStorageLive<'static>>, place_cache: FxHashSet<PlaceRef<'tcx>>, value_cache: FxHashSet<u128>, // If `false`, then the MIR must not contain `UnwindAction::Continue` or @@ -130,7 +119,7 @@ impl<'a, 'tcx> CfgChecker<'a, 'tcx> { let span = self.body.source_info(location).span; // We use `span_delayed_bug` as we might see broken MIR when other errors have already // occurred. - self.tcx.sess.diagnostic().span_delayed_bug( + self.tcx.sess.dcx().span_delayed_bug( span, format!( "broken MIR in {:?} ({}) at {:?}:\n{}", @@ -294,28 +283,13 @@ impl<'a, 'tcx> CfgChecker<'a, 'tcx> { } impl<'a, 'tcx> Visitor<'tcx> for CfgChecker<'a, 'tcx> { - fn visit_local(&mut self, local: Local, context: PlaceContext, location: Location) { + fn visit_local(&mut self, local: Local, _context: PlaceContext, location: Location) { if self.body.local_decls.get(local).is_none() { self.fail( location, format!("local {local:?} has no corresponding declaration in `body.local_decls`"), ); } - - if self.reachable_blocks.contains(location.block) && context.is_use() { - // We check that the local is live whenever it is used. Technically, violating this - // restriction is only UB and not actually indicative of not well-formed MIR. This means - // that an optimization which turns MIR that already has UB into MIR that fails this - // check is not necessarily wrong. However, we have no such optimizations at the moment, - // and so we include this check anyway to help us catch bugs. If you happen to write an - // optimization that might cause this to incorrectly fire, feel free to remove this - // check. - self.storage_liveness.seek_after_primary_effect(location); - let locals_with_storage = self.storage_liveness.get(); - if !locals_with_storage.contains(local) { - self.fail(location, format!("use of local {local:?}, which has no storage here")); - } - } } fn visit_statement(&mut self, statement: &Statement<'tcx>, location: Location) { @@ -367,26 +341,8 @@ impl<'a, 'tcx> Visitor<'tcx> for CfgChecker<'a, 'tcx> { self.fail(location, format!("explicit `{kind:?}` is forbidden")); } } - StatementKind::StorageLive(local) => { - // We check that the local is not live when entering a `StorageLive` for it. - // Technically, violating this restriction is only UB and not actually indicative - // of not well-formed MIR. This means that an optimization which turns MIR that - // already has UB into MIR that fails this check is not necessarily wrong. However, - // we have no such optimizations at the moment, and so we include this check anyway - // to help us catch bugs. If you happen to write an optimization that might cause - // this to incorrectly fire, feel free to remove this check. - if self.reachable_blocks.contains(location.block) { - self.storage_liveness.seek_before_primary_effect(location); - let locals_with_storage = self.storage_liveness.get(); - if locals_with_storage.contains(*local) { - self.fail( - location, - format!("StorageLive({local:?}) which already has storage here"), - ); - } - } - } - StatementKind::StorageDead(_) + StatementKind::StorageLive(_) + | StatementKind::StorageDead(_) | StatementKind::Intrinsic(_) | StatementKind::Coverage(_) | StatementKind::ConstEvalCounter @@ -571,7 +527,7 @@ impl<'a, 'tcx> Visitor<'tcx> for CfgChecker<'a, 'tcx> { fn visit_source_scope(&mut self, scope: SourceScope) { if self.body.source_scopes.get(scope).is_none() { - self.tcx.sess.diagnostic().span_delayed_bug( + self.tcx.sess.dcx().span_delayed_bug( self.body.span, format!( "broken MIR in {:?} ({}):\ninvalid source scope {:?}", diff --git a/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs b/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs index cafa91c8b8b..f17a0bf26d7 100644 --- a/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs +++ b/compiler/rustc_data_structures/src/tagged_ptr/impl_tag.rs @@ -81,150 +81,6 @@ /// E::A, /// } /// ``` -#[cfg(bootstrap)] -#[macro_export] -macro_rules! impl_tag { - ( - impl Tag for $Self:ty; - $( - $($path:ident)::* $( { $( $fields:tt )* })?, - )* - ) => { - // Safety: - // `bits_for_tags` is called on the same `${index()}`-es as - // `into_usize` returns, thus `BITS` constant is correct. - unsafe impl $crate::tagged_ptr::Tag for $Self { - const BITS: u32 = $crate::tagged_ptr::bits_for_tags(&[ - $( - ${index()}, - $( ${ignore(path)} )* - )* - ]); - - #[inline] - fn into_usize(self) -> usize { - // This forbids use of repeating patterns (`Enum::V`&`Enum::V`, etc) - // (or at least it should, see <https://github.com/rust-lang/rust/issues/110613>) - #[forbid(unreachable_patterns)] - match self { - // `match` is doing heavy lifting here, by requiring exhaustiveness - $( - $($path)::* $( { $( $fields )* } )? => ${index()}, - )* - } - } - - #[inline] - unsafe fn from_usize(tag: usize) -> Self { - match tag { - $( - ${index()} => $($path)::* $( { $( $fields )* } )?, - )* - - // Safety: - // `into_usize` only returns `${index()}` of the same - // repetition as we are filtering above, thus if this is - // reached, the safety contract of this function was - // already breached. - _ => unsafe { - debug_assert!( - false, - "invalid tag: {tag}\ - (this is a bug in the caller of `from_usize`)" - ); - std::hint::unreachable_unchecked() - }, - } - } - - } - }; -} - -/// Implements [`Tag`] for a given type. -/// -/// You can use `impl_tag` on structs and enums. -/// You need to specify the type and all its possible values, -/// which can only be paths with optional fields. -/// -/// [`Tag`]: crate::tagged_ptr::Tag -/// -/// # Examples -/// -/// Basic usage: -/// -/// ``` -/// #![feature(macro_metavar_expr)] -/// use rustc_data_structures::{impl_tag, tagged_ptr::Tag}; -/// -/// #[derive(Copy, Clone, PartialEq, Debug)] -/// enum SomeTag { -/// A, -/// B, -/// X { v: bool }, -/// Y(bool, bool), -/// } -/// -/// impl_tag! { -/// // The type for which the `Tag` will be implemented -/// impl Tag for SomeTag; -/// // You need to specify all possible tag values: -/// SomeTag::A, // 0 -/// SomeTag::B, // 1 -/// // For variants with fields, you need to specify the fields: -/// SomeTag::X { v: true }, // 2 -/// SomeTag::X { v: false }, // 3 -/// // For tuple variants use named syntax: -/// SomeTag::Y { 0: true, 1: true }, // 4 -/// SomeTag::Y { 0: false, 1: true }, // 5 -/// SomeTag::Y { 0: true, 1: false }, // 6 -/// SomeTag::Y { 0: false, 1: false }, // 7 -/// } -/// -/// // Tag values are assigned in order: -/// assert_eq!(SomeTag::A.into_usize(), 0); -/// assert_eq!(SomeTag::X { v: false }.into_usize(), 3); -/// assert_eq!(SomeTag::Y(false, true).into_usize(), 5); -/// -/// assert_eq!(unsafe { SomeTag::from_usize(1) }, SomeTag::B); -/// assert_eq!(unsafe { SomeTag::from_usize(2) }, SomeTag::X { v: true }); -/// assert_eq!(unsafe { SomeTag::from_usize(7) }, SomeTag::Y(false, false)); -/// ``` -/// -/// Structs are supported: -/// -/// ``` -/// #![feature(macro_metavar_expr)] -/// # use rustc_data_structures::impl_tag; -/// #[derive(Copy, Clone)] -/// struct Flags { a: bool, b: bool } -/// -/// impl_tag! { -/// impl Tag for Flags; -/// Flags { a: true, b: true }, -/// Flags { a: false, b: true }, -/// Flags { a: true, b: false }, -/// Flags { a: false, b: false }, -/// } -/// ``` -/// -/// Not specifying all values results in a compile error: -/// -/// ```compile_fail,E0004 -/// #![feature(macro_metavar_expr)] -/// # use rustc_data_structures::impl_tag; -/// #[derive(Copy, Clone)] -/// enum E { -/// A, -/// B, -/// } -/// -/// impl_tag! { -/// impl Tag for E; -/// E::A, -/// } -/// ``` -#[cfg(not(bootstrap))] #[macro_export] macro_rules! impl_tag { ( diff --git a/compiler/rustc_driver_impl/src/args.rs b/compiler/rustc_driver_impl/src/args.rs index 654d7636da2..b7407f5a508 100644 --- a/compiler/rustc_driver_impl/src/args.rs +++ b/compiler/rustc_driver_impl/src/args.rs @@ -3,7 +3,7 @@ use std::fmt; use std::fs; use std::io; -use rustc_session::EarlyErrorHandler; +use rustc_session::EarlyDiagCtxt; fn arg_expand(arg: String) -> Result<Vec<String>, Error> { if let Some(path) = arg.strip_prefix('@') { @@ -23,12 +23,12 @@ fn arg_expand(arg: String) -> Result<Vec<String>, Error> { /// **Note:** This function doesn't interpret argument 0 in any special way. /// If this function is intended to be used with command line arguments, /// `argv[0]` must be removed prior to calling it manually. -pub fn arg_expand_all(handler: &EarlyErrorHandler, at_args: &[String]) -> Vec<String> { +pub fn arg_expand_all(early_dcx: &EarlyDiagCtxt, at_args: &[String]) -> Vec<String> { let mut args = Vec::new(); for arg in at_args { match arg_expand(arg.clone()) { Ok(arg) => args.extend(arg), - Err(err) => handler.early_error(format!("Failed to load argument file: {err}")), + Err(err) => early_dcx.early_fatal(format!("Failed to load argument file: {err}")), } } args diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs index e49db64536f..c277304fb22 100644 --- a/compiler/rustc_driver_impl/src/lib.rs +++ b/compiler/rustc_driver_impl/src/lib.rs @@ -27,7 +27,7 @@ use rustc_data_structures::profiling::{ use rustc_data_structures::sync::SeqCst; use rustc_errors::registry::{InvalidErrorCode, Registry}; use rustc_errors::{markdown, ColorConfig}; -use rustc_errors::{ErrorGuaranteed, Handler, PResult}; +use rustc_errors::{DiagCtxt, ErrorGuaranteed, PResult}; use rustc_feature::find_gated_cfg; use rustc_interface::util::{self, collect_crate_types, get_codegen_backend}; use rustc_interface::{interface, Queries}; @@ -38,7 +38,7 @@ use rustc_session::config::{nightly_options, CG_OPTIONS, Z_OPTIONS}; use rustc_session::config::{ErrorOutputType, Input, OutFileName, OutputType, TrimmedDefPaths}; use rustc_session::getopts::{self, Matches}; use rustc_session::lint::{Lint, LintId}; -use rustc_session::{config, EarlyErrorHandler, Session}; +use rustc_session::{config, EarlyDiagCtxt, Session}; use rustc_span::def_id::LOCAL_CRATE; use rustc_span::source_map::FileLoader; use rustc_span::symbol::sym; @@ -291,7 +291,7 @@ fn run_compiler( >, using_internal_features: Arc<std::sync::atomic::AtomicBool>, ) -> interface::Result<()> { - let mut default_handler = EarlyErrorHandler::new(ErrorOutputType::default()); + let mut default_early_dcx = EarlyDiagCtxt::new(ErrorOutputType::default()); // Throw away the first argument, the name of the binary. // In case of at_args being empty, as might be the case by @@ -303,14 +303,14 @@ fn run_compiler( // the compiler with @empty_file as argv[0] and no more arguments. let at_args = at_args.get(1..).unwrap_or_default(); - let args = args::arg_expand_all(&default_handler, at_args); + let args = args::arg_expand_all(&default_early_dcx, at_args); - let Some(matches) = handle_options(&default_handler, &args) else { return Ok(()) }; + let Some(matches) = handle_options(&default_early_dcx, &args) else { return Ok(()) }; - let sopts = config::build_session_options(&mut default_handler, &matches); + let sopts = config::build_session_options(&mut default_early_dcx, &matches); if let Some(ref code) = matches.opt_str("explain") { - handle_explain(&default_handler, diagnostics_registry(), code, sopts.color); + handle_explain(&default_early_dcx, diagnostics_registry(), code, sopts.color); return Ok(()); } @@ -336,7 +336,7 @@ fn run_compiler( expanded_args: args, }; - let has_input = match make_input(&default_handler, &matches.free) { + let has_input = match make_input(&default_early_dcx, &matches.free) { Err(reported) => return Err(reported), Ok(Some(input)) => { config.input = input; @@ -345,7 +345,7 @@ fn run_compiler( Ok(None) => match matches.free.len() { 0 => false, // no input: we will exit early 1 => panic!("make_input should have provided valid inputs"), - _ => default_handler.early_error(format!( + _ => default_early_dcx.early_fatal(format!( "multiple input filenames provided (first two filenames are `{}` and `{}`)", matches.free[0], matches.free[1], )), @@ -354,8 +354,8 @@ fn run_compiler( callbacks.config(&mut config); - default_handler.abort_if_errors(); - drop(default_handler); + default_early_dcx.abort_if_errors(); + drop(default_early_dcx); interface::run_compiler(config, |compiler| { let sess = &compiler.sess; @@ -369,18 +369,18 @@ fn run_compiler( return sess.compile_status(); } - let handler = EarlyErrorHandler::new(sess.opts.error_format); + let early_dcx = EarlyDiagCtxt::new(sess.opts.error_format); - if print_crate_info(&handler, codegen_backend, sess, has_input) == Compilation::Stop { + if print_crate_info(&early_dcx, codegen_backend, sess, has_input) == Compilation::Stop { return sess.compile_status(); } if !has_input { - handler.early_error("no input filename given"); // this is fatal + early_dcx.early_fatal("no input filename given"); // this is fatal } if !sess.opts.unstable_opts.ls.is_empty() { - list_metadata(&handler, sess, &*codegen_backend.metadata_loader()); + list_metadata(&early_dcx, sess, &*codegen_backend.metadata_loader()); return sess.compile_status(); } @@ -495,7 +495,7 @@ fn make_output(matches: &getopts::Matches) -> (Option<PathBuf>, Option<OutFileNa // Extract input (string or file and optional path) from matches. fn make_input( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, free_matches: &[String], ) -> Result<Option<Input>, ErrorGuaranteed> { if free_matches.len() == 1 { @@ -505,9 +505,8 @@ fn make_input( if io::stdin().read_to_string(&mut src).is_err() { // Immediately stop compilation if there was an issue reading // the input (for example if the input stream is not UTF-8). - let reported = handler.early_error_no_abort( - "couldn't read from stdin, as it did not contain valid UTF-8", - ); + let reported = early_dcx + .early_err("couldn't read from stdin, as it did not contain valid UTF-8"); return Err(reported); } if let Ok(path) = env::var("UNSTABLE_RUSTDOC_TEST_PATH") { @@ -537,7 +536,7 @@ pub enum Compilation { Continue, } -fn handle_explain(handler: &EarlyErrorHandler, registry: Registry, code: &str, color: ColorConfig) { +fn handle_explain(early_dcx: &EarlyDiagCtxt, registry: Registry, code: &str, color: ColorConfig) { let upper_cased_code = code.to_ascii_uppercase(); let normalised = if upper_cased_code.starts_with('E') { upper_cased_code } else { format!("E{code:0>4}") }; @@ -567,7 +566,7 @@ fn handle_explain(handler: &EarlyErrorHandler, registry: Registry, code: &str, c } } Err(InvalidErrorCode) => { - handler.early_error(format!("{code} is not a valid error code")); + early_dcx.early_fatal(format!("{code} is not a valid error code")); } } } @@ -669,11 +668,7 @@ fn process_rlink(sess: &Session, compiler: &interface::Compiler) { } } -fn list_metadata( - handler: &EarlyErrorHandler, - sess: &Session, - metadata_loader: &dyn MetadataLoader, -) { +fn list_metadata(early_dcx: &EarlyDiagCtxt, sess: &Session, metadata_loader: &dyn MetadataLoader) { match sess.io.input { Input::File(ref ifile) => { let path = &(*ifile); @@ -689,13 +684,13 @@ fn list_metadata( safe_println!("{}", String::from_utf8(v).unwrap()); } Input::Str { .. } => { - handler.early_error("cannot list metadata for stdin"); + early_dcx.early_fatal("cannot list metadata for stdin"); } } } fn print_crate_info( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, codegen_backend: &dyn CodegenBackend, sess: &Session, parse_attrs: bool, @@ -842,8 +837,8 @@ fn print_crate_info( .expect("unknown Apple target OS"); println_info!("deployment_target={}", format!("{major}.{minor}")) } else { - handler - .early_error("only Apple targets currently support deployment version info") + early_dcx + .early_fatal("only Apple targets currently support deployment version info") } } } @@ -856,12 +851,12 @@ fn print_crate_info( /// Prints version information /// /// NOTE: this is a macro to support drivers built at a different time than the main `rustc_driver` crate. -pub macro version($handler: expr, $binary: literal, $matches: expr) { +pub macro version($early_dcx: expr, $binary: literal, $matches: expr) { fn unw(x: Option<&str>) -> &str { x.unwrap_or("unknown") } $crate::version_at_macro_invocation( - $handler, + $early_dcx, $binary, $matches, unw(option_env!("CFG_VERSION")), @@ -873,7 +868,7 @@ pub macro version($handler: expr, $binary: literal, $matches: expr) { #[doc(hidden)] // use the macro instead pub fn version_at_macro_invocation( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, binary: &str, matches: &getopts::Matches, version: &str, @@ -894,7 +889,7 @@ pub fn version_at_macro_invocation( let debug_flags = matches.opt_strs("Z"); let backend_name = debug_flags.iter().find_map(|x| x.strip_prefix("codegen-backend=")); - get_codegen_backend(handler, &None, backend_name).print_version(); + get_codegen_backend(early_dcx, &None, backend_name).print_version(); } } @@ -1072,7 +1067,7 @@ Available lint options: /// Show help for flag categories shared between rustdoc and rustc. /// /// Returns whether a help option was printed. -pub fn describe_flag_categories(handler: &EarlyErrorHandler, matches: &Matches) -> bool { +pub fn describe_flag_categories(early_dcx: &EarlyDiagCtxt, matches: &Matches) -> bool { // Handle the special case of -Wall. let wall = matches.opt_strs("W"); if wall.iter().any(|x| *x == "all") { @@ -1094,12 +1089,12 @@ pub fn describe_flag_categories(handler: &EarlyErrorHandler, matches: &Matches) } if cg_flags.iter().any(|x| *x == "no-stack-check") { - handler.early_warn("the --no-stack-check flag is deprecated and does nothing"); + early_dcx.early_warn("the --no-stack-check flag is deprecated and does nothing"); } if cg_flags.iter().any(|x| *x == "passes=list") { let backend_name = debug_flags.iter().find_map(|x| x.strip_prefix("codegen-backend=")); - get_codegen_backend(handler, &None, backend_name).print_passes(); + get_codegen_backend(early_dcx, &None, backend_name).print_passes(); return true; } @@ -1160,7 +1155,7 @@ fn print_flag_list<T>( /// This does not need to be `pub` for rustc itself, but @chaosite needs it to /// be public when using rustc as a library, see /// <https://github.com/rust-lang/rust/commit/2b4c33817a5aaecabf4c6598d41e190080ec119e> -pub fn handle_options(handler: &EarlyErrorHandler, args: &[String]) -> Option<getopts::Matches> { +pub fn handle_options(early_dcx: &EarlyDiagCtxt, args: &[String]) -> Option<getopts::Matches> { if args.is_empty() { // user did not write `-v` nor `-Z unstable-options`, so do not // include that extra information. @@ -1186,7 +1181,7 @@ pub fn handle_options(handler: &EarlyErrorHandler, args: &[String]) -> Option<ge .map(|(flag, _)| format!("{e}. Did you mean `-{flag} {opt}`?")), _ => None, }; - handler.early_error(msg.unwrap_or_else(|| e.to_string())); + early_dcx.early_fatal(msg.unwrap_or_else(|| e.to_string())); }); // For all options we just parsed, we check a few aspects: @@ -1200,7 +1195,7 @@ pub fn handle_options(handler: &EarlyErrorHandler, args: &[String]) -> Option<ge // we're good to go. // * Otherwise, if we're an unstable option then we generate an error // (unstable option being used on stable) - nightly_options::check_nightly_options(handler, &matches, &config::rustc_optgroups()); + nightly_options::check_nightly_options(early_dcx, &matches, &config::rustc_optgroups()); if matches.opt_present("h") || matches.opt_present("help") { // Only show unstable options in --help if we accept unstable options. @@ -1210,12 +1205,12 @@ pub fn handle_options(handler: &EarlyErrorHandler, args: &[String]) -> Option<ge return None; } - if describe_flag_categories(handler, &matches) { + if describe_flag_categories(early_dcx, &matches) { return None; } if matches.opt_present("version") { - version!(handler, "rustc", &matches); + version!(early_dcx, "rustc", &matches); return None; } @@ -1310,7 +1305,10 @@ fn ice_path() -> &'static Option<PathBuf> { /// internal features. /// /// A custom rustc driver can skip calling this to set up a custom ICE hook. -pub fn install_ice_hook(bug_report_url: &'static str, extra_info: fn(&Handler)) -> Arc<AtomicBool> { +pub fn install_ice_hook( + bug_report_url: &'static str, + extra_info: fn(&DiagCtxt), +) -> Arc<AtomicBool> { // If the user has not explicitly overridden "RUST_BACKTRACE", then produce // full backtraces. When a compiler ICE happens, we want to gather // as much information as possible to present in the issue opened @@ -1333,8 +1331,8 @@ pub fn install_ice_hook(bug_report_url: &'static str, extra_info: fn(&Handler)) if msg.starts_with("failed printing to stdout: ") && msg.ends_with("(os error 232)") { // the error code is already going to be reported when the panic unwinds up the stack - let handler = EarlyErrorHandler::new(ErrorOutputType::default()); - let _ = handler.early_error_no_abort(msg.clone()); + let early_dcx = EarlyDiagCtxt::new(ErrorOutputType::default()); + let _ = early_dcx.early_err(msg.clone()); return; } }; @@ -1388,7 +1386,7 @@ pub fn install_ice_hook(bug_report_url: &'static str, extra_info: fn(&Handler)) fn report_ice( info: &panic::PanicInfo<'_>, bug_report_url: &str, - extra_info: fn(&Handler), + extra_info: fn(&DiagCtxt), using_internal_features: &AtomicBool, ) { let fallback_bundle = @@ -1397,20 +1395,20 @@ fn report_ice( rustc_errors::ColorConfig::Auto, fallback_bundle, )); - let handler = rustc_errors::Handler::with_emitter(emitter); + let dcx = rustc_errors::DiagCtxt::with_emitter(emitter); // a .span_bug or .bug call has already printed what // it wants to print. if !info.payload().is::<rustc_errors::ExplicitBug>() && !info.payload().is::<rustc_errors::DelayedBugPanic>() { - handler.emit_err(session_diagnostics::Ice); + dcx.emit_err(session_diagnostics::Ice); } if using_internal_features.load(std::sync::atomic::Ordering::Relaxed) { - handler.emit_note(session_diagnostics::IceBugReportInternalFeature); + dcx.emit_note(session_diagnostics::IceBugReportInternalFeature); } else { - handler.emit_note(session_diagnostics::IceBugReport { bug_report_url }); + dcx.emit_note(session_diagnostics::IceBugReport { bug_report_url }); } let version = util::version_str!().unwrap_or("unknown_version"); @@ -1422,7 +1420,7 @@ fn report_ice( // Create the ICE dump target file. match crate::fs::File::options().create(true).append(true).open(&path) { Ok(mut file) => { - handler.emit_note(session_diagnostics::IcePath { path: path.clone() }); + dcx.emit_note(session_diagnostics::IcePath { path: path.clone() }); if FIRST_PANIC.swap(false, Ordering::SeqCst) { let _ = write!(file, "\n\nrustc version: {version}\nplatform: {triple}"); } @@ -1430,26 +1428,26 @@ fn report_ice( } Err(err) => { // The path ICE couldn't be written to disk, provide feedback to the user as to why. - handler.emit_warning(session_diagnostics::IcePathError { + dcx.emit_warning(session_diagnostics::IcePathError { path: path.clone(), error: err.to_string(), env_var: std::env::var_os("RUSTC_ICE") .map(PathBuf::from) .map(|env_var| session_diagnostics::IcePathErrorEnv { env_var }), }); - handler.emit_note(session_diagnostics::IceVersion { version, triple }); + dcx.emit_note(session_diagnostics::IceVersion { version, triple }); None } } } else { - handler.emit_note(session_diagnostics::IceVersion { version, triple }); + dcx.emit_note(session_diagnostics::IceVersion { version, triple }); None }; if let Some((flags, excluded_cargo_defaults)) = rustc_session::utils::extra_compiler_flags() { - handler.emit_note(session_diagnostics::IceFlags { flags: flags.join(" ") }); + dcx.emit_note(session_diagnostics::IceFlags { flags: flags.join(" ") }); if excluded_cargo_defaults { - handler.emit_note(session_diagnostics::IceExcludeCargoDefaults); + dcx.emit_note(session_diagnostics::IceExcludeCargoDefaults); } } @@ -1458,11 +1456,11 @@ fn report_ice( let num_frames = if backtrace { None } else { Some(2) }; - interface::try_print_query_stack(&handler, num_frames, file); + interface::try_print_query_stack(&dcx, num_frames, file); // We don't trust this callback not to panic itself, so run it at the end after we're sure we've // printed all the relevant info. - extra_info(&handler); + extra_info(&dcx); #[cfg(windows)] if env::var("RUSTC_BREAK_ON_ICE").is_ok() { @@ -1473,16 +1471,16 @@ fn report_ice( /// This allows tools to enable rust logging without having to magically match rustc's /// tracing crate version. -pub fn init_rustc_env_logger(handler: &EarlyErrorHandler) { - init_logger(handler, rustc_log::LoggerConfig::from_env("RUSTC_LOG")); +pub fn init_rustc_env_logger(early_dcx: &EarlyDiagCtxt) { + init_logger(early_dcx, rustc_log::LoggerConfig::from_env("RUSTC_LOG")); } /// This allows tools to enable rust logging without having to magically match rustc's /// tracing crate version. In contrast to `init_rustc_env_logger` it allows you to choose /// the values directly rather than having to set an environment variable. -pub fn init_logger(handler: &EarlyErrorHandler, cfg: rustc_log::LoggerConfig) { +pub fn init_logger(early_dcx: &EarlyDiagCtxt, cfg: rustc_log::LoggerConfig) { if let Err(error) = rustc_log::init_logger(cfg) { - handler.early_error(error.to_string()); + early_dcx.early_fatal(error.to_string()); } } @@ -1490,9 +1488,9 @@ pub fn main() -> ! { let start_time = Instant::now(); let start_rss = get_resident_set_size(); - let handler = EarlyErrorHandler::new(ErrorOutputType::default()); + let early_dcx = EarlyDiagCtxt::new(ErrorOutputType::default()); - init_rustc_env_logger(&handler); + init_rustc_env_logger(&early_dcx); signal_handler::install(); let mut callbacks = TimePassesCallbacks::default(); let using_internal_features = install_ice_hook(DEFAULT_BUG_REPORT_URL, |_| ()); @@ -1501,7 +1499,7 @@ pub fn main() -> ! { .enumerate() .map(|(i, arg)| { arg.into_string().unwrap_or_else(|arg| { - handler.early_error(format!("argument {i} is not valid Unicode: {arg:?}")) + early_dcx.early_fatal(format!("argument {i} is not valid Unicode: {arg:?}")) }) }) .collect::<Vec<_>>(); diff --git a/compiler/rustc_error_codes/src/error_codes/E0640.md b/compiler/rustc_error_codes/src/error_codes/E0640.md index 7edd93e56a9..f7bbeb293ca 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0640.md +++ b/compiler/rustc_error_codes/src/error_codes/E0640.md @@ -1 +1,2 @@ #### This error code is internal to the compiler and will not be emitted with normal Rust code. +#### Note: this error code is no longer emitted by the compiler. diff --git a/compiler/rustc_error_codes/src/error_codes/E0761.md b/compiler/rustc_error_codes/src/error_codes/E0761.md index 760c5897698..975f967d0e1 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0761.md +++ b/compiler/rustc_error_codes/src/error_codes/E0761.md @@ -15,7 +15,7 @@ fn foo() {} mod ambiguous_module; // error: file for module `ambiguous_module` // found at both ambiguous_module.rs and - // ambiguous_module.rs/mod.rs + // ambiguous_module/mod.rs ``` Please remove this ambiguity by deleting/renaming one of the candidate files. diff --git a/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs b/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs index da266bf9c63..48e48f59a99 100644 --- a/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs +++ b/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs @@ -60,7 +60,7 @@ impl Emitter for AnnotateSnippetEmitterWriter { self.emit_messages_default( &diag.level, - &diag.message, + &diag.messages, &fluent_args, &diag.code, &primary_span, diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs index 403e0ec7950..c226b2d41bd 100644 --- a/compiler/rustc_errors/src/diagnostic.rs +++ b/compiler/rustc_errors/src/diagnostic.rs @@ -103,7 +103,7 @@ pub struct Diagnostic { // outside of what methods in this crate themselves allow. pub(crate) level: Level, - pub message: Vec<(DiagnosticMessage, Style)>, + pub messages: Vec<(DiagnosticMessage, Style)>, pub code: Option<DiagnosticId>, pub span: MultiSpan, pub children: Vec<SubDiagnostic>, @@ -161,9 +161,8 @@ pub enum DiagnosticId { #[derive(Clone, Debug, PartialEq, Hash, Encodable, Decodable)] pub struct SubDiagnostic { pub level: Level, - pub message: Vec<(DiagnosticMessage, Style)>, + pub messages: Vec<(DiagnosticMessage, Style)>, pub span: MultiSpan, - pub render_span: Option<MultiSpan>, } #[derive(Debug, PartialEq, Eq)] @@ -216,14 +215,14 @@ impl StringPart { impl Diagnostic { #[track_caller] pub fn new<M: Into<DiagnosticMessage>>(level: Level, message: M) -> Self { - Diagnostic::new_with_code(level, None, message) + Diagnostic::new_with_messages(level, vec![(message.into(), Style::NoStyle)]) } #[track_caller] pub fn new_with_messages(level: Level, messages: Vec<(DiagnosticMessage, Style)>) -> Self { Diagnostic { level, - message: messages, + messages, code: None, span: MultiSpan::new(), children: vec![], @@ -235,26 +234,6 @@ impl Diagnostic { } } - #[track_caller] - pub(crate) fn new_with_code<M: Into<DiagnosticMessage>>( - level: Level, - code: Option<DiagnosticId>, - message: M, - ) -> Self { - Diagnostic { - level, - message: vec![(message.into(), Style::NoStyle)], - code, - span: MultiSpan::new(), - children: vec![], - suggestions: Ok(vec![]), - args: Default::default(), - sort_span: DUMMY_SP, - is_lint: false, - emitted_at: DiagnosticLocation::caller(), - } - } - #[inline(always)] pub fn level(&self) -> Level { self.level @@ -445,7 +424,7 @@ impl Diagnostic { /// Add a note attached to this diagnostic. #[rustc_lint_diagnostics] pub fn note(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self { - self.sub(Level::Note, msg, MultiSpan::new(), None); + self.sub(Level::Note, msg, MultiSpan::new()); self } @@ -453,14 +432,14 @@ impl Diagnostic { &mut self, msg: Vec<(M, Style)>, ) -> &mut Self { - self.sub_with_highlights(Level::Note, msg, MultiSpan::new(), None); + self.sub_with_highlights(Level::Note, msg, MultiSpan::new()); self } /// Prints the span with a note above it. /// This is like [`Diagnostic::note()`], but it gets its own span. pub fn note_once(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self { - self.sub(Level::OnceNote, msg, MultiSpan::new(), None); + self.sub(Level::OnceNote, msg, MultiSpan::new()); self } @@ -472,7 +451,7 @@ impl Diagnostic { sp: S, msg: impl Into<SubdiagnosticMessage>, ) -> &mut Self { - self.sub(Level::Note, msg, sp.into(), None); + self.sub(Level::Note, msg, sp.into()); self } @@ -483,14 +462,14 @@ impl Diagnostic { sp: S, msg: impl Into<SubdiagnosticMessage>, ) -> &mut Self { - self.sub(Level::OnceNote, msg, sp.into(), None); + self.sub(Level::OnceNote, msg, sp.into()); self } /// Add a warning attached to this diagnostic. #[rustc_lint_diagnostics] pub fn warn(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self { - self.sub(Level::Warning(None), msg, MultiSpan::new(), None); + self.sub(Level::Warning(None), msg, MultiSpan::new()); self } @@ -502,27 +481,27 @@ impl Diagnostic { sp: S, msg: impl Into<SubdiagnosticMessage>, ) -> &mut Self { - self.sub(Level::Warning(None), msg, sp.into(), None); + self.sub(Level::Warning(None), msg, sp.into()); self } /// Add a help message attached to this diagnostic. #[rustc_lint_diagnostics] pub fn help(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self { - self.sub(Level::Help, msg, MultiSpan::new(), None); + self.sub(Level::Help, msg, MultiSpan::new()); self } /// Prints the span with a help above it. /// This is like [`Diagnostic::help()`], but it gets its own span. pub fn help_once(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self { - self.sub(Level::OnceHelp, msg, MultiSpan::new(), None); + self.sub(Level::OnceHelp, msg, MultiSpan::new()); self } /// Add a help message attached to this diagnostic with a customizable highlighted message. pub fn highlighted_help(&mut self, msg: Vec<(String, Style)>) -> &mut Self { - self.sub_with_highlights(Level::Help, msg, MultiSpan::new(), None); + self.sub_with_highlights(Level::Help, msg, MultiSpan::new()); self } @@ -534,7 +513,7 @@ impl Diagnostic { sp: S, msg: impl Into<SubdiagnosticMessage>, ) -> &mut Self { - self.sub(Level::Help, msg, sp.into(), None); + self.sub(Level::Help, msg, sp.into()); self } @@ -886,13 +865,13 @@ impl Diagnostic { /// interpolated variables). pub fn eager_subdiagnostic( &mut self, - handler: &crate::Handler, + dcx: &crate::DiagCtxt, subdiagnostic: impl AddToDiagnostic, ) -> &mut Self { subdiagnostic.add_to_diagnostic_with(self, |diag, msg| { let args = diag.args(); let msg = diag.subdiagnostic_message_to_diagnostic_message(msg); - handler.eagerly_translate(msg, args) + dcx.eagerly_translate(msg, args) }); self } @@ -925,7 +904,7 @@ impl Diagnostic { } pub fn set_primary_message(&mut self, msg: impl Into<DiagnosticMessage>) -> &mut Self { - self.message[0] = (msg.into(), Style::NoStyle); + self.messages[0] = (msg.into(), Style::NoStyle); self } @@ -952,8 +931,8 @@ impl Diagnostic { self.args = args; } - pub fn styled_message(&self) -> &[(DiagnosticMessage, Style)] { - &self.message + pub fn messages(&self) -> &[(DiagnosticMessage, Style)] { + &self.messages } /// Helper function that takes a `SubdiagnosticMessage` and returns a `DiagnosticMessage` by @@ -964,7 +943,7 @@ impl Diagnostic { attr: impl Into<SubdiagnosticMessage>, ) -> DiagnosticMessage { let msg = - self.message.iter().map(|(msg, _)| msg).next().expect("diagnostic with no messages"); + self.messages.iter().map(|(msg, _)| msg).next().expect("diagnostic with no messages"); msg.with_subdiagnostic_message(attr.into()) } @@ -972,21 +951,14 @@ impl Diagnostic { /// public methods above. /// /// Used by `proc_macro_server` for implementing `server::Diagnostic`. - pub fn sub( - &mut self, - level: Level, - message: impl Into<SubdiagnosticMessage>, - span: MultiSpan, - render_span: Option<MultiSpan>, - ) { + pub fn sub(&mut self, level: Level, message: impl Into<SubdiagnosticMessage>, span: MultiSpan) { let sub = SubDiagnostic { level, - message: vec![( + messages: vec![( self.subdiagnostic_message_to_diagnostic_message(message), Style::NoStyle, )], span, - render_span, }; self.children.push(sub); } @@ -996,15 +968,14 @@ impl Diagnostic { fn sub_with_highlights<M: Into<SubdiagnosticMessage>>( &mut self, level: Level, - message: Vec<(M, Style)>, + messages: Vec<(M, Style)>, span: MultiSpan, - render_span: Option<MultiSpan>, ) { - let message = message + let messages = messages .into_iter() .map(|m| (self.subdiagnostic_message_to_diagnostic_message(m.0), m.1)) .collect(); - let sub = SubDiagnostic { level, message, span, render_span }; + let sub = SubDiagnostic { level, messages, span }; self.children.push(sub); } @@ -1022,7 +993,7 @@ impl Diagnostic { ) { ( &self.level, - &self.message, + &self.messages, self.args().collect(), &self.code, &self.span, diff --git a/compiler/rustc_errors/src/diagnostic_builder.rs b/compiler/rustc_errors/src/diagnostic_builder.rs index 315e47c0971..4703e71523d 100644 --- a/compiler/rustc_errors/src/diagnostic_builder.rs +++ b/compiler/rustc_errors/src/diagnostic_builder.rs @@ -1,9 +1,9 @@ use crate::diagnostic::IntoDiagnosticArg; +use crate::{DiagCtxt, Level, MultiSpan, StashKey}; use crate::{ Diagnostic, DiagnosticId, DiagnosticMessage, DiagnosticStyledString, ErrorGuaranteed, ExplicitBug, SubdiagnosticMessage, }; -use crate::{Handler, Level, MultiSpan, StashKey}; use rustc_lint_defs::Applicability; use rustc_span::source_map::Spanned; @@ -15,13 +15,13 @@ use std::ops::{Deref, DerefMut}; use std::panic; use std::thread::panicking; -/// Trait implemented by error types. This should not be implemented manually. Instead, use +/// Trait implemented by error types. This is rarely implemented manually. Instead, use /// `#[derive(Diagnostic)]` -- see [rustc_macros::Diagnostic]. #[rustc_diagnostic_item = "IntoDiagnostic"] pub trait IntoDiagnostic<'a, G: EmissionGuarantee = ErrorGuaranteed> { - /// Write out as a diagnostic out of `Handler`. + /// Write out as a diagnostic out of `DiagCtxt`. #[must_use] - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, G>; + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G>; } impl<'a, T, G> IntoDiagnostic<'a, G> for Spanned<T> @@ -29,8 +29,8 @@ where T: IntoDiagnostic<'a, G>, G: EmissionGuarantee, { - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, G> { - let mut diag = self.node.into_diagnostic(handler); + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { + let mut diag = self.node.into_diagnostic(dcx, level); diag.set_span(self.span); diag } @@ -40,27 +40,10 @@ where /// /// If there is some state in a downstream crate you would like to /// access in the methods of `DiagnosticBuilder` here, consider -/// extending `HandlerFlags`, accessed via `self.handler.flags`. +/// extending `DiagCtxtFlags`. #[must_use] #[derive(Clone)] -pub struct DiagnosticBuilder<'a, G: EmissionGuarantee> { - inner: DiagnosticBuilderInner<'a>, - _marker: PhantomData<G>, -} - -/// This type exists only for `DiagnosticBuilder::forget_guarantee`, because it: -/// 1. lacks the `G` parameter and therefore `DiagnosticBuilder<G1>` can be -/// converted into `DiagnosticBuilder<G2>` while reusing the `inner` field -/// 2. can implement the `Drop` "bomb" instead of `DiagnosticBuilder`, as it -/// contains all of the data (`state` + `diagnostic`) of `DiagnosticBuilder` -/// -/// The `diagnostic` field is not `Copy` and can't be moved out of whichever -/// type implements the `Drop` "bomb", but because of the above two facts, that -/// never needs to happen - instead, the whole `inner: DiagnosticBuilderInner` -/// can be moved out of a `DiagnosticBuilder` and into another. -#[must_use] -#[derive(Clone)] -struct DiagnosticBuilderInner<'a> { +pub struct DiagnosticBuilder<'a, G: EmissionGuarantee = ErrorGuaranteed> { state: DiagnosticBuilderState<'a>, /// `Diagnostic` is a large type, and `DiagnosticBuilder` is often used as a @@ -68,14 +51,16 @@ struct DiagnosticBuilderInner<'a> { /// In theory, return value optimization (RVO) should avoid unnecessary /// copying. In practice, it does not (at the time of writing). diagnostic: Box<Diagnostic>, + + _marker: PhantomData<G>, } #[derive(Clone)] enum DiagnosticBuilderState<'a> { /// Initial state of a `DiagnosticBuilder`, before `.emit()` or `.cancel()`. /// - /// The `Diagnostic` will be emitted through this `Handler`. - Emittable(&'a Handler), + /// The `Diagnostic` will be emitted through this `DiagCtxt`. + Emittable(&'a DiagCtxt), /// State of a `DiagnosticBuilder`, after `.emit()` or *during* `.cancel()`. /// @@ -83,7 +68,7 @@ enum DiagnosticBuilderState<'a> { /// assumed that `.emit()` was previously called, to end up in this state. /// /// While this is also used by `.cancel()`, this state is only observed by - /// the `Drop` `impl` of `DiagnosticBuilderInner`, as `.cancel()` takes + /// the `Drop` `impl` of `DiagnosticBuilder`, because `.cancel()` takes /// `self` by-value specifically to prevent any attempts to `.emit()`. /// // FIXME(eddyb) currently this doesn't prevent extending the `Diagnostic`, @@ -95,53 +80,56 @@ enum DiagnosticBuilderState<'a> { // `DiagnosticBuilderState` should be pointer-sized. rustc_data_structures::static_assert_size!( DiagnosticBuilderState<'_>, - std::mem::size_of::<&Handler>() + std::mem::size_of::<&DiagCtxt>() ); /// Trait for types that `DiagnosticBuilder::emit` can return as a "guarantee" /// (or "proof") token that the emission happened. pub trait EmissionGuarantee: Sized { + /// This exists so that bugs and fatal errors can both result in `!` (an + /// abort) when emitted, but have different aborting behaviour. + type EmitResult = Self; + /// Implementation of `DiagnosticBuilder::emit`, fully controlled by each /// `impl` of `EmissionGuarantee`, to make it impossible to create a value - /// of `Self` without actually performing the emission. - #[track_caller] - fn diagnostic_builder_emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self; - - /// Creates a new `DiagnosticBuilder` that will return this type of guarantee. + /// of `Self::EmitResult` without actually performing the emission. #[track_caller] - fn make_diagnostic_builder( - handler: &Handler, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, Self>; + fn emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self::EmitResult; } -impl<'a> DiagnosticBuilder<'a, ErrorGuaranteed> { - /// Discard the guarantee `.emit()` would return, in favor of having the - /// type `DiagnosticBuilder<'a, ()>`. This may be necessary whenever there - /// is a common codepath handling both errors and warnings. - pub fn forget_guarantee(self) -> DiagnosticBuilder<'a, ()> { - DiagnosticBuilder { inner: self.inner, _marker: PhantomData } +impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> { + /// Most `emit_producing_guarantee` functions use this as a starting point. + fn emit_producing_nothing(&mut self) { + match self.state { + // First `.emit()` call, the `&DiagCtxt` is still available. + DiagnosticBuilderState::Emittable(dcx) => { + self.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; + dcx.emit_diagnostic_without_consuming(&mut self.diagnostic); + } + // `.emit()` was previously called, disallowed from repeating it. + DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation => {} + } } } // FIXME(eddyb) make `ErrorGuaranteed` impossible to create outside `.emit()`. impl EmissionGuarantee for ErrorGuaranteed { - fn diagnostic_builder_emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self { - match db.inner.state { - // First `.emit()` call, the `&Handler` is still available. - DiagnosticBuilderState::Emittable(handler) => { - db.inner.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; - - let guar = handler.emit_diagnostic_without_consuming(&mut db.inner.diagnostic); + fn emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self::EmitResult { + // Contrast this with `emit_producing_nothing`. + match db.state { + // First `.emit()` call, the `&DiagCtxt` is still available. + DiagnosticBuilderState::Emittable(dcx) => { + db.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; + let guar = dcx.emit_diagnostic_without_consuming(&mut db.diagnostic); // Only allow a guarantee if the `level` wasn't switched to a // non-error - the field isn't `pub`, but the whole `Diagnostic` // can be overwritten with a new one, thanks to `DerefMut`. assert!( - db.inner.diagnostic.is_error(), + db.diagnostic.is_error(), "emitted non-error ({:?}) diagnostic \ from `DiagnosticBuilder<ErrorGuaranteed>`", - db.inner.diagnostic.level, + db.diagnostic.level, ); guar.unwrap() } @@ -153,152 +141,58 @@ impl EmissionGuarantee for ErrorGuaranteed { // non-error - the field isn't `pub`, but the whole `Diagnostic` // can be overwritten with a new one, thanks to `DerefMut`. assert!( - db.inner.diagnostic.is_error(), + db.diagnostic.is_error(), "`DiagnosticBuilder<ErrorGuaranteed>`'s diagnostic \ became non-error ({:?}), after original `.emit()`", - db.inner.diagnostic.level, + db.diagnostic.level, ); #[allow(deprecated)] ErrorGuaranteed::unchecked_claim_error_was_emitted() } } } - - #[track_caller] - fn make_diagnostic_builder( - handler: &Handler, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, Self> { - DiagnosticBuilder::new(handler, Level::Error { lint: false }, msg) - } } // FIXME(eddyb) should there be a `Option<ErrorGuaranteed>` impl as well? impl EmissionGuarantee for () { - fn diagnostic_builder_emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self { - match db.inner.state { - // First `.emit()` call, the `&Handler` is still available. - DiagnosticBuilderState::Emittable(handler) => { - db.inner.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; - - handler.emit_diagnostic_without_consuming(&mut db.inner.diagnostic); - } - // `.emit()` was previously called, disallowed from repeating it. - DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation => {} - } - } - - fn make_diagnostic_builder( - handler: &Handler, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, Self> { - DiagnosticBuilder::new(handler, Level::Warning(None), msg) - } -} - -/// Marker type which enables implementation of `create_note` and `emit_note` functions for -/// note-without-error struct diagnostics. -#[derive(Copy, Clone)] -pub struct Noted; - -impl EmissionGuarantee for Noted { - fn diagnostic_builder_emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self { - match db.inner.state { - // First `.emit()` call, the `&Handler` is still available. - DiagnosticBuilderState::Emittable(handler) => { - db.inner.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; - handler.emit_diagnostic_without_consuming(&mut db.inner.diagnostic); - } - // `.emit()` was previously called, disallowed from repeating it. - DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation => {} - } - - Noted - } - - fn make_diagnostic_builder( - handler: &Handler, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, Self> { - DiagnosticBuilder::new(handler, Level::Note, msg) + fn emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self::EmitResult { + db.emit_producing_nothing(); } } /// Marker type which enables implementation of `create_bug` and `emit_bug` functions for -/// bug struct diagnostics. +/// bug diagnostics. #[derive(Copy, Clone)] -pub struct Bug; +pub struct BugAbort; -impl EmissionGuarantee for Bug { - fn diagnostic_builder_emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self { - match db.inner.state { - // First `.emit()` call, the `&Handler` is still available. - DiagnosticBuilderState::Emittable(handler) => { - db.inner.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; +impl EmissionGuarantee for BugAbort { + type EmitResult = !; - handler.emit_diagnostic_without_consuming(&mut db.inner.diagnostic); - } - // `.emit()` was previously called, disallowed from repeating it. - DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation => {} - } - // Then panic. No need to return the marker type. + fn emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self::EmitResult { + db.emit_producing_nothing(); panic::panic_any(ExplicitBug); } - - fn make_diagnostic_builder( - handler: &Handler, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, Self> { - DiagnosticBuilder::new(handler, Level::Bug, msg) - } } -impl EmissionGuarantee for ! { - fn diagnostic_builder_emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self { - match db.inner.state { - // First `.emit()` call, the `&Handler` is still available. - DiagnosticBuilderState::Emittable(handler) => { - db.inner.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; +/// Marker type which enables implementation of `create_fatal` and `emit_fatal` functions for +/// fatal diagnostics. +#[derive(Copy, Clone)] +pub struct FatalAbort; + +impl EmissionGuarantee for FatalAbort { + type EmitResult = !; - handler.emit_diagnostic_without_consuming(&mut db.inner.diagnostic); - } - // `.emit()` was previously called, disallowed from repeating it. - DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation => {} - } - // Then fatally error, returning `!` + fn emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self::EmitResult { + db.emit_producing_nothing(); crate::FatalError.raise() } - - fn make_diagnostic_builder( - handler: &Handler, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, Self> { - DiagnosticBuilder::new(handler, Level::Fatal, msg) - } } impl EmissionGuarantee for rustc_span::fatal_error::FatalError { - fn diagnostic_builder_emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self { - match db.inner.state { - // First `.emit()` call, the `&Handler` is still available. - DiagnosticBuilderState::Emittable(handler) => { - db.inner.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; - - handler.emit_diagnostic_without_consuming(&mut db.inner.diagnostic); - } - // `.emit()` was previously called, disallowed from repeating it. - DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation => {} - } - // Then fatally error.. + fn emit_producing_guarantee(db: &mut DiagnosticBuilder<'_, Self>) -> Self::EmitResult { + db.emit_producing_nothing(); rustc_span::fatal_error::FatalError } - - fn make_diagnostic_builder( - handler: &Handler, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, Self> { - DiagnosticBuilder::new(handler, Level::Fatal, msg) - } } /// In general, the `DiagnosticBuilder` uses deref to allow access to @@ -318,7 +212,7 @@ macro_rules! forward { $(#[$attrs])* #[doc = concat!("See [`Diagnostic::", stringify!($n), "()`].")] pub fn $n(&mut self, $($name: $ty),*) -> &mut Self { - self.inner.diagnostic.$n($($name),*); + self.diagnostic.$n($($name),*); self } }; @@ -328,39 +222,31 @@ impl<G: EmissionGuarantee> Deref for DiagnosticBuilder<'_, G> { type Target = Diagnostic; fn deref(&self) -> &Diagnostic { - &self.inner.diagnostic + &self.diagnostic } } impl<G: EmissionGuarantee> DerefMut for DiagnosticBuilder<'_, G> { fn deref_mut(&mut self) -> &mut Diagnostic { - &mut self.inner.diagnostic + &mut self.diagnostic } } impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> { - /// Convenience function for internal use, clients should use one of the - /// `struct_*` methods on [`Handler`]. + #[rustc_lint_diagnostics] #[track_caller] - pub(crate) fn new<M: Into<DiagnosticMessage>>( - handler: &'a Handler, - level: Level, - message: M, - ) -> Self { - let diagnostic = Diagnostic::new(level, message); - Self::new_diagnostic(handler, diagnostic) + pub fn new<M: Into<DiagnosticMessage>>(dcx: &'a DiagCtxt, level: Level, message: M) -> Self { + Self::new_diagnostic(dcx, Diagnostic::new(level, message)) } /// Creates a new `DiagnosticBuilder` with an already constructed /// diagnostic. #[track_caller] - pub(crate) fn new_diagnostic(handler: &'a Handler, diagnostic: Diagnostic) -> Self { + pub(crate) fn new_diagnostic(dcx: &'a DiagCtxt, diagnostic: Diagnostic) -> Self { debug!("Created new diagnostic"); Self { - inner: DiagnosticBuilderInner { - state: DiagnosticBuilderState::Emittable(handler), - diagnostic: Box::new(diagnostic), - }, + state: DiagnosticBuilderState::Emittable(dcx), + diagnostic: Box::new(diagnostic), _marker: PhantomData, } } @@ -369,8 +255,8 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> { /// but there are various places that rely on continuing to use `self` /// after calling `emit`. #[track_caller] - pub fn emit(&mut self) -> G { - G::diagnostic_builder_emit_producing_guarantee(self) + pub fn emit(&mut self) -> G::EmitResult { + G::emit_producing_guarantee(self) } /// Emit the diagnostic unless `delay` is true, @@ -378,7 +264,7 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> { /// /// See `emit` and `delay_as_bug` for details. #[track_caller] - pub fn emit_unless(&mut self, delay: bool) -> G { + pub fn emit_unless(&mut self, delay: bool) -> G::EmitResult { if delay { self.downgrade_to_delayed_bug(); } @@ -392,35 +278,35 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> { /// which may be expected to *guarantee* the emission of an error, either /// at the time of the call, or through a prior `.emit()` call. pub fn cancel(mut self) { - self.inner.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; + self.state = DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation; drop(self); } /// Stashes diagnostic for possible later improvement in a different, /// later stage of the compiler. The diagnostic can be accessed with - /// the provided `span` and `key` through [`Handler::steal_diagnostic()`]. + /// the provided `span` and `key` through [`DiagCtxt::steal_diagnostic()`]. /// - /// As with `buffer`, this is unless the handler has disabled such buffering. + /// As with `buffer`, this is unless the dcx has disabled such buffering. pub fn stash(self, span: Span, key: StashKey) { - if let Some((diag, handler)) = self.into_diagnostic() { - handler.stash_diagnostic(span, key, diag); + if let Some((diag, dcx)) = self.into_diagnostic() { + dcx.stash_diagnostic(span, key, diag); } } /// Converts the builder to a `Diagnostic` for later emission, - /// unless handler has disabled such buffering, or `.emit()` was called. - pub fn into_diagnostic(mut self) -> Option<(Diagnostic, &'a Handler)> { - let handler = match self.inner.state { - // No `.emit()` calls, the `&Handler` is still available. - DiagnosticBuilderState::Emittable(handler) => handler, + /// unless dcx has disabled such buffering, or `.emit()` was called. + pub fn into_diagnostic(mut self) -> Option<(Diagnostic, &'a DiagCtxt)> { + let dcx = match self.state { + // No `.emit()` calls, the `&DiagCtxt` is still available. + DiagnosticBuilderState::Emittable(dcx) => dcx, // `.emit()` was previously called, nothing we can do. DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation => { return None; } }; - if handler.inner.lock().flags.dont_buffer_diagnostics - || handler.inner.lock().flags.treat_err_as_bug.is_some() + if dcx.inner.lock().flags.dont_buffer_diagnostics + || dcx.inner.lock().flags.treat_err_as_bug.is_some() { self.emit(); return None; @@ -428,7 +314,7 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> { // Take the `Diagnostic` by replacing it with a dummy. let dummy = Diagnostic::new(Level::Allow, DiagnosticMessage::from("")); - let diagnostic = std::mem::replace(&mut *self.inner.diagnostic, dummy); + let diagnostic = std::mem::replace(&mut *self.diagnostic, dummy); // Disable the ICE on `Drop`. self.cancel(); @@ -437,19 +323,19 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> { // actually emitted. debug!("buffer: diagnostic={:?}", diagnostic); - Some((diagnostic, handler)) + Some((diagnostic, dcx)) } - /// Retrieves the [`Handler`] if available - pub fn handler(&self) -> Option<&Handler> { - match self.inner.state { - DiagnosticBuilderState::Emittable(handler) => Some(handler), + /// Retrieves the [`DiagCtxt`] if available + pub fn dcx(&self) -> Option<&DiagCtxt> { + match self.state { + DiagnosticBuilderState::Emittable(dcx) => Some(dcx), DiagnosticBuilderState::AlreadyEmittedOrDuringCancellation => None, } } /// Buffers the diagnostic for later emission, - /// unless handler has disabled such buffering. + /// unless dcx has disabled such buffering. pub fn buffer(self, buffered_diagnostics: &mut Vec<Diagnostic>) { buffered_diagnostics.extend(self.into_diagnostic().map(|(diag, _)| diag)); } @@ -465,7 +351,7 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> { /// In the meantime, though, callsites are required to deal with the "bug" /// locally in whichever way makes the most sense. #[track_caller] - pub fn delay_as_bug(&mut self) -> G { + pub fn delay_as_bug(&mut self) -> G::EmitResult { self.downgrade_to_delayed_bug(); self.emit() } @@ -630,25 +516,25 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> { impl<G: EmissionGuarantee> Debug for DiagnosticBuilder<'_, G> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - self.inner.diagnostic.fmt(f) + self.diagnostic.fmt(f) } } /// Destructor bomb - a `DiagnosticBuilder` must be either emitted or cancelled /// or we emit a bug. -impl Drop for DiagnosticBuilderInner<'_> { +impl<G: EmissionGuarantee> Drop for DiagnosticBuilder<'_, G> { fn drop(&mut self) { match self.state { // No `.emit()` or `.cancel()` calls. - DiagnosticBuilderState::Emittable(handler) => { + DiagnosticBuilderState::Emittable(dcx) => { if !panicking() { - handler.emit_diagnostic(Diagnostic::new( + dcx.emit_diagnostic(Diagnostic::new( Level::Bug, DiagnosticMessage::from( "the following error was constructed but not emitted", ), )); - handler.emit_diagnostic_without_consuming(&mut self.diagnostic); + dcx.emit_diagnostic_without_consuming(&mut self.diagnostic); panic!("error was constructed but not emitted"); } } diff --git a/compiler/rustc_errors/src/diagnostic_impls.rs b/compiler/rustc_errors/src/diagnostic_impls.rs index 558262460c7..29cb304e8b5 100644 --- a/compiler/rustc_errors/src/diagnostic_impls.rs +++ b/compiler/rustc_errors/src/diagnostic_impls.rs @@ -1,10 +1,12 @@ use crate::diagnostic::DiagnosticLocation; use crate::{fluent_generated as fluent, AddToDiagnostic}; -use crate::{DiagnosticArgValue, DiagnosticBuilder, Handler, IntoDiagnostic, IntoDiagnosticArg}; +use crate::{ + DiagCtxt, DiagnosticArgValue, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, + IntoDiagnosticArg, Level, +}; use rustc_ast as ast; use rustc_ast_pretty::pprust; use rustc_hir as hir; -use rustc_lint_defs::Level; use rustc_span::edition::Edition; use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent, Symbol}; use rustc_span::Span; @@ -216,7 +218,7 @@ impl IntoDiagnosticArg for ast::Visibility { } } -impl IntoDiagnosticArg for Level { +impl IntoDiagnosticArg for rustc_lint_defs::Level { fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> { DiagnosticArgValue::Str(Cow::Borrowed(self.to_cmd_flag())) } @@ -245,19 +247,20 @@ impl<Id> IntoDiagnosticArg for hir::def::Res<Id> { } } -impl IntoDiagnostic<'_, !> for TargetDataLayoutErrors<'_> { - fn into_diagnostic(self, handler: &Handler) -> DiagnosticBuilder<'_, !> { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for TargetDataLayoutErrors<'_> { + fn into_diagnostic(self, dcx: &DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { let mut diag; match self { TargetDataLayoutErrors::InvalidAddressSpace { addr_space, err, cause } => { - diag = handler.struct_fatal(fluent::errors_target_invalid_address_space); + diag = + DiagnosticBuilder::new(dcx, level, fluent::errors_target_invalid_address_space); diag.set_arg("addr_space", addr_space); diag.set_arg("cause", cause); diag.set_arg("err", err); diag } TargetDataLayoutErrors::InvalidBits { kind, bit, cause, err } => { - diag = handler.struct_fatal(fluent::errors_target_invalid_bits); + diag = DiagnosticBuilder::new(dcx, level, fluent::errors_target_invalid_bits); diag.set_arg("kind", kind); diag.set_arg("bit", bit); diag.set_arg("cause", cause); @@ -265,31 +268,39 @@ impl IntoDiagnostic<'_, !> for TargetDataLayoutErrors<'_> { diag } TargetDataLayoutErrors::MissingAlignment { cause } => { - diag = handler.struct_fatal(fluent::errors_target_missing_alignment); + diag = DiagnosticBuilder::new(dcx, level, fluent::errors_target_missing_alignment); diag.set_arg("cause", cause); diag } TargetDataLayoutErrors::InvalidAlignment { cause, err } => { - diag = handler.struct_fatal(fluent::errors_target_invalid_alignment); + diag = DiagnosticBuilder::new(dcx, level, fluent::errors_target_invalid_alignment); diag.set_arg("cause", cause); diag.set_arg("err_kind", err.diag_ident()); diag.set_arg("align", err.align()); diag } TargetDataLayoutErrors::InconsistentTargetArchitecture { dl, target } => { - diag = handler.struct_fatal(fluent::errors_target_inconsistent_architecture); + diag = DiagnosticBuilder::new( + dcx, + level, + fluent::errors_target_inconsistent_architecture, + ); diag.set_arg("dl", dl); diag.set_arg("target", target); diag } TargetDataLayoutErrors::InconsistentTargetPointerWidth { pointer_size, target } => { - diag = handler.struct_fatal(fluent::errors_target_inconsistent_pointer_width); + diag = DiagnosticBuilder::new( + dcx, + level, + fluent::errors_target_inconsistent_pointer_width, + ); diag.set_arg("pointer_size", pointer_size); diag.set_arg("target", target); diag } TargetDataLayoutErrors::InvalidBitsSize { err } => { - diag = handler.struct_fatal(fluent::errors_target_invalid_bits_size); + diag = DiagnosticBuilder::new(dcx, level, fluent::errors_target_invalid_bits_size); diag.set_arg("err", err); diag } @@ -301,25 +312,13 @@ impl IntoDiagnostic<'_, !> for TargetDataLayoutErrors<'_> { pub struct SingleLabelManySpans { pub spans: Vec<Span>, pub label: &'static str, - pub kind: LabelKind, } impl AddToDiagnostic for SingleLabelManySpans { fn add_to_diagnostic_with<F>(self, diag: &mut crate::Diagnostic, _: F) { - match self.kind { - LabelKind::Note => diag.span_note(self.spans, self.label), - LabelKind::Label => diag.span_labels(self.spans, self.label), - LabelKind::Help => diag.span_help(self.spans, self.label), - }; + diag.span_labels(self.spans, self.label); } } -/// The kind of label to attach when using [`SingleLabelManySpans`] -pub enum LabelKind { - Note, - Label, - Help, -} - #[derive(Subdiagnostic)] #[label(errors_expected_lifetime_parameter)] pub struct ExpectedLifetimeParameter { @@ -362,9 +361,9 @@ impl IntoDiagnosticArg for Backtrace { pub struct InvalidFlushedDelayedDiagnosticLevel { #[primary_span] pub span: Span, - pub level: rustc_errors::Level, + pub level: Level, } -impl IntoDiagnosticArg for rustc_errors::Level { +impl IntoDiagnosticArg for Level { fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> { DiagnosticArgValue::Str(Cow::from(self.to_string())) } diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs index ec37240e394..546159c9d13 100644 --- a/compiler/rustc_errors/src/emitter.rs +++ b/compiler/rustc_errors/src/emitter.rs @@ -16,8 +16,8 @@ use crate::snippet::{ use crate::styled_buffer::StyledBuffer; use crate::translation::{to_fluent_args, Translate}; use crate::{ - diagnostic::DiagnosticLocation, CodeSuggestion, Diagnostic, DiagnosticId, DiagnosticMessage, - FluentBundle, Handler, LazyFallbackBundle, Level, MultiSpan, SubDiagnostic, + diagnostic::DiagnosticLocation, CodeSuggestion, DiagCtxt, Diagnostic, DiagnosticId, + DiagnosticMessage, FluentBundle, LazyFallbackBundle, Level, MultiSpan, SubDiagnostic, SubstitutionHighlight, SuggestionStyle, TerminalUrl, }; use rustc_lint_defs::pluralize; @@ -350,9 +350,8 @@ pub trait Emitter: Translate { children.push(SubDiagnostic { level: Level::Note, - message: vec![(DiagnosticMessage::from(msg), Style::NoStyle)], + messages: vec![(DiagnosticMessage::from(msg), Style::NoStyle)], span: MultiSpan::new(), - render_span: None, }); } } @@ -533,7 +532,7 @@ impl Emitter for EmitterWriter { self.emit_messages_default( &diag.level, - &diag.message, + &diag.messages, &fluent_args, &diag.code, &primary_span, @@ -553,10 +552,10 @@ impl Emitter for EmitterWriter { } /// An emitter that does nothing when emitting a non-fatal diagnostic. -/// Fatal diagnostics are forwarded to `fatal_handler` to avoid silent +/// Fatal diagnostics are forwarded to `fatal_dcx` to avoid silent /// failures of rustc, as witnessed e.g. in issue #89358. pub struct SilentEmitter { - pub fatal_handler: Handler, + pub fatal_dcx: DiagCtxt, pub fatal_note: Option<String>, } @@ -581,7 +580,7 @@ impl Emitter for SilentEmitter { if let Some(ref note) = self.fatal_note { d.note(note.clone()); } - self.fatal_handler.emit_diagnostic(d); + self.fatal_dcx.emit_diagnostic(d); } } } @@ -1228,10 +1227,10 @@ impl EmitterWriter { /// Adds a left margin to every line but the first, given a padding length and the label being /// displayed, keeping the provided highlighting. - fn msg_to_buffer( + fn msgs_to_buffer( &self, buffer: &mut StyledBuffer, - msg: &[(DiagnosticMessage, Style)], + msgs: &[(DiagnosticMessage, Style)], args: &FluentArgs<'_>, padding: usize, label: &str, @@ -1267,7 +1266,7 @@ impl EmitterWriter { // Provided the following diagnostic message: // - // let msg = vec![ + // let msgs = vec![ // (" // ("highlighted multiline\nstring to\nsee how it ", Style::NoStyle), // ("looks", Style::Highlight), @@ -1284,7 +1283,7 @@ impl EmitterWriter { // see how it *looks* with // very *weird* formats // see? - for (text, style) in msg.iter() { + for (text, style) in msgs.iter() { let text = self.translate_message(text, args).map_err(Report::new).unwrap(); let text = &normalize_whitespace(&text); let lines = text.split('\n').collect::<Vec<_>>(); @@ -1303,10 +1302,10 @@ impl EmitterWriter { } #[instrument(level = "trace", skip(self, args), ret)] - fn emit_message_default( + fn emit_messages_default_inner( &mut self, msp: &MultiSpan, - msg: &[(DiagnosticMessage, Style)], + msgs: &[(DiagnosticMessage, Style)], args: &FluentArgs<'_>, code: &Option<DiagnosticId>, level: &Level, @@ -1327,7 +1326,7 @@ impl EmitterWriter { buffer.append(0, level.to_str(), Style::MainHeaderMsg); buffer.append(0, ": ", Style::NoStyle); } - self.msg_to_buffer(&mut buffer, msg, args, max_line_num_len, "note", None); + self.msgs_to_buffer(&mut buffer, msgs, args, max_line_num_len, "note", None); } else { let mut label_width = 0; // The failure note level itself does not provide any useful diagnostic information @@ -1360,7 +1359,7 @@ impl EmitterWriter { buffer.append(0, ": ", header_style); label_width += 2; } - for (text, _) in msg.iter() { + for (text, _) in msgs.iter() { let text = self.translate_message(text, args).map_err(Report::new).unwrap(); // Account for newlines to align output to its label. for (line, text) in normalize_whitespace(&text).lines().enumerate() { @@ -1747,7 +1746,7 @@ impl EmitterWriter { buffer.append(0, level.to_str(), Style::Level(*level)); buffer.append(0, ": ", Style::HeaderMsg); - self.msg_to_buffer( + self.msgs_to_buffer( &mut buffer, &[(suggestion.msg.to_owned(), Style::NoStyle)], args, @@ -2074,7 +2073,7 @@ impl EmitterWriter { fn emit_messages_default( &mut self, level: &Level, - message: &[(DiagnosticMessage, Style)], + messages: &[(DiagnosticMessage, Style)], args: &FluentArgs<'_>, code: &Option<DiagnosticId>, span: &MultiSpan, @@ -2089,9 +2088,9 @@ impl EmitterWriter { num_decimal_digits(n) }; - match self.emit_message_default( + match self.emit_messages_default_inner( span, - message, + messages, args, code, level, @@ -2118,10 +2117,10 @@ impl EmitterWriter { } if !self.short_message { for child in children { - let span = child.render_span.as_ref().unwrap_or(&child.span); - if let Err(err) = self.emit_message_default( + let span = &child.span; + if let Err(err) = self.emit_messages_default_inner( span, - &child.message, + &child.messages, args, &None, &child.level, @@ -2138,7 +2137,7 @@ impl EmitterWriter { // do not display this suggestion, it is meant only for tools } SuggestionStyle::HideCodeAlways => { - if let Err(e) = self.emit_message_default( + if let Err(e) = self.emit_messages_default_inner( &MultiSpan::new(), &[(sugg.msg.to_owned(), Style::HeaderMsg)], args, diff --git a/compiler/rustc_errors/src/json.rs b/compiler/rustc_errors/src/json.rs index aa3749334d9..52fcb50e9fb 100644 --- a/compiler/rustc_errors/src/json.rs +++ b/compiler/rustc_errors/src/json.rs @@ -398,7 +398,7 @@ impl Diagnostic { let output = Arc::try_unwrap(output.0).unwrap().into_inner().unwrap(); let output = String::from_utf8(output).unwrap(); - let translated_message = je.translate_messages(&diag.message, &args); + let translated_message = je.translate_messages(&diag.messages, &args); Diagnostic { message: translated_message.to_string(), code: DiagnosticCode::map_opt_string(diag.code.clone(), je), @@ -419,16 +419,12 @@ impl Diagnostic { args: &FluentArgs<'_>, je: &JsonEmitter, ) -> Diagnostic { - let translated_message = je.translate_messages(&diag.message, args); + let translated_message = je.translate_messages(&diag.messages, args); Diagnostic { message: translated_message.to_string(), code: None, level: diag.level.to_str(), - spans: diag - .render_span - .as_ref() - .map(|sp| DiagnosticSpan::from_multispan(sp, args, je)) - .unwrap_or_else(|| DiagnosticSpan::from_multispan(&diag.span, args, je)), + spans: DiagnosticSpan::from_multispan(&diag.span, args, je), children: vec![], rendered: None, } diff --git a/compiler/rustc_errors/src/json/tests.rs b/compiler/rustc_errors/src/json/tests.rs index 5f9e821a48c..303de0a93f6 100644 --- a/compiler/rustc_errors/src/json/tests.rs +++ b/compiler/rustc_errors/src/json/tests.rs @@ -1,7 +1,7 @@ use super::*; use crate::emitter::ColorConfig; -use crate::Handler; +use crate::DiagCtxt; use rustc_span::BytePos; use std::str; @@ -61,8 +61,8 @@ fn test_positions(code: &str, span: (u32, u32), expected_output: SpanTestData) { ); let span = Span::with_root_ctxt(BytePos(span.0), BytePos(span.1)); - let handler = Handler::with_emitter(Box::new(je)); - handler.span_err(span, "foo"); + let dcx = DiagCtxt::with_emitter(Box::new(je)); + dcx.span_err(span, "foo"); let bytes = output.lock().unwrap(); let actual_output = str::from_utf8(&bytes).unwrap(); diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index cf73c638d85..7a1faac04d3 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -6,6 +6,7 @@ #![doc(rust_logo)] #![feature(rustdoc_internals)] #![feature(array_windows)] +#![feature(associated_type_defaults)] #![feature(extract_if)] #![feature(if_let_guard)] #![feature(let_chains)] @@ -26,26 +27,42 @@ extern crate tracing; extern crate self as rustc_errors; +pub use diagnostic::{ + AddToDiagnostic, DecorateLint, Diagnostic, DiagnosticArg, DiagnosticArgValue, DiagnosticId, + DiagnosticStyledString, IntoDiagnosticArg, SubDiagnostic, +}; +pub use diagnostic_builder::{ + BugAbort, DiagnosticBuilder, EmissionGuarantee, FatalAbort, IntoDiagnostic, +}; +pub use diagnostic_impls::{ + DiagnosticArgFromDisplay, DiagnosticSymbolList, ExpectedLifetimeParameter, + IndicateAnonymousLifetime, InvalidFlushedDelayedDiagnosticLevel, SingleLabelManySpans, +}; pub use emitter::ColorConfig; +pub use rustc_error_messages::{ + fallback_fluent_bundle, fluent_bundle, DelayDm, DiagnosticMessage, FluentBundle, + LanguageIdentifier, LazyFallbackBundle, MultiSpan, SpanLabel, SubdiagnosticMessage, +}; +pub use rustc_lint_defs::{pluralize, Applicability}; +pub use rustc_span::fatal_error::{FatalError, FatalErrorMarker}; +pub use rustc_span::ErrorGuaranteed; +pub use snippet::Style; -use rustc_lint_defs::LintExpectationId; -use Level::*; +// Used by external projects such as `rust-gpu`. +// See https://github.com/rust-lang/rust/pull/115393. +pub use termcolor::{Color, ColorSpec, WriteColor}; +use crate::diagnostic_impls::{DelayedAtWithNewline, DelayedAtWithoutNewline}; use emitter::{is_case_difference, DynEmitter, Emitter, EmitterWriter}; use registry::Registry; use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet}; use rustc_data_structures::stable_hasher::{Hash128, StableHasher}; use rustc_data_structures::sync::{Lock, Lrc}; use rustc_data_structures::AtomicRef; -pub use rustc_error_messages::{ - fallback_fluent_bundle, fluent_bundle, DelayDm, DiagnosticMessage, FluentBundle, - LanguageIdentifier, LazyFallbackBundle, MultiSpan, SpanLabel, SubdiagnosticMessage, -}; -pub use rustc_lint_defs::{pluralize, Applicability}; +use rustc_lint_defs::LintExpectationId; use rustc_span::source_map::SourceMap; -pub use rustc_span::ErrorGuaranteed; use rustc_span::{Loc, Span, DUMMY_SP}; - +use std::backtrace::{Backtrace, BacktraceStatus}; use std::borrow::Cow; use std::error::Report; use std::fmt; @@ -55,9 +72,7 @@ use std::num::NonZeroUsize; use std::panic; use std::path::{Path, PathBuf}; -// Used by external projects such as `rust-gpu`. -// See https://github.com/rust-lang/rust/pull/115393. -pub use termcolor::{Color, ColorSpec, WriteColor}; +use Level::*; pub mod annotate_snippet_emitter_writer; mod diagnostic; @@ -75,10 +90,7 @@ mod styled_buffer; mod tests; pub mod translation; -pub use diagnostic_builder::IntoDiagnostic; -pub use snippet::Style; - -pub type PErr<'a> = DiagnosticBuilder<'a, ErrorGuaranteed>; +pub type PErr<'a> = DiagnosticBuilder<'a>; pub type PResult<'a, T> = Result<T, PErr<'a>>; rustc_fluent_macro::fluent_messages! { "../messages.ftl" } @@ -162,7 +174,7 @@ pub struct SubstitutionPart { /// Used to translate between `Span`s and byte positions within a single output line in highlighted /// code of structured suggestions. #[derive(Debug, Clone, Copy)] -pub struct SubstitutionHighlight { +pub(crate) struct SubstitutionHighlight { start: usize, end: usize, } @@ -189,7 +201,7 @@ impl SubstitutionPart { impl CodeSuggestion { /// Returns the assembled code suggestions, whether they should be shown with an underline /// and whether the substitution only differs in capitalization. - pub fn splice_lines( + pub(crate) fn splice_lines( &self, sm: &SourceMap, ) -> Vec<(String, Vec<SubstitutionPart>, Vec<Vec<SubstitutionHighlight>>, bool)> { @@ -386,8 +398,6 @@ impl CodeSuggestion { } } -pub use rustc_span::fatal_error::{FatalError, FatalErrorMarker}; - /// Signifies that the compiler died with an explicit call to `.bug` /// or `.span_bug` rather than a failed assertion, etc. pub struct ExplicitBug; @@ -396,31 +406,18 @@ pub struct ExplicitBug; /// rather than a failed assertion, etc. pub struct DelayedBugPanic; -use crate::diagnostic_impls::{DelayedAtWithNewline, DelayedAtWithoutNewline}; -pub use diagnostic::{ - AddToDiagnostic, DecorateLint, Diagnostic, DiagnosticArg, DiagnosticArgValue, DiagnosticId, - DiagnosticStyledString, IntoDiagnosticArg, SubDiagnostic, -}; -pub use diagnostic_builder::{DiagnosticBuilder, EmissionGuarantee, Noted}; -pub use diagnostic_impls::{ - DiagnosticArgFromDisplay, DiagnosticSymbolList, ExpectedLifetimeParameter, - IndicateAnonymousLifetime, InvalidFlushedDelayedDiagnosticLevel, LabelKind, - SingleLabelManySpans, -}; -use std::backtrace::{Backtrace, BacktraceStatus}; - -/// A handler deals with errors and other compiler output. +/// A `DiagCtxt` deals with errors and other compiler output. /// Certain errors (fatal, bug, unimpl) may cause immediate exit, /// others log errors for later reporting. -pub struct Handler { - inner: Lock<HandlerInner>, +pub struct DiagCtxt { + inner: Lock<DiagCtxtInner>, } /// This inner struct exists to keep it all behind a single lock; /// this is done to prevent possible deadlocks in a multi-threaded compiler, /// as well as inconsistent state observation. -struct HandlerInner { - flags: HandlerFlags, +struct DiagCtxtInner { + flags: DiagCtxtFlags, /// The number of lint errors that have been emitted. lint_err_count: usize, /// The number of errors that have been emitted, including duplicates. @@ -446,7 +443,7 @@ struct HandlerInner { emitted_diagnostic_codes: FxIndexSet<DiagnosticId>, /// This set contains a hash of every diagnostic that has been emitted by - /// this handler. These hashes is used to avoid emitting the same error + /// this `DiagCtxt`. These hashes is used to avoid emitting the same error /// twice. emitted_diagnostics: FxHashSet<Hash128>, @@ -518,7 +515,7 @@ pub static TRACK_DIAGNOSTICS: AtomicRef<fn(&mut Diagnostic, &mut dyn FnMut(&mut AtomicRef::new(&(default_track_diagnostic as _)); #[derive(Copy, Clone, Default)] -pub struct HandlerFlags { +pub struct DiagCtxtFlags { /// If false, warning-level lints are suppressed. /// (rustc: see `--allow warnings` and `--cap-lints`) pub can_emit_warnings: bool, @@ -540,7 +537,7 @@ pub struct HandlerFlags { pub track_diagnostics: bool, } -impl Drop for HandlerInner { +impl Drop for DiagCtxtInner { fn drop(&mut self) { self.emit_stashed_diagnostics(); @@ -572,7 +569,7 @@ impl Drop for HandlerInner { } } -impl Handler { +impl DiagCtxt { pub fn with_tty_emitter( sm: Option<Lrc<SourceMap>>, fallback_bundle: LazyFallbackBundle, @@ -585,7 +582,7 @@ impl Handler { self } - pub fn with_flags(mut self, flags: HandlerFlags) -> Self { + pub fn with_flags(mut self, flags: DiagCtxtFlags) -> Self { self.inner.get_mut().flags = flags; self } @@ -597,8 +594,8 @@ impl Handler { pub fn with_emitter(emitter: Box<DynEmitter>) -> Self { Self { - inner: Lock::new(HandlerInner { - flags: HandlerFlags { can_emit_warnings: true, ..Default::default() }, + inner: Lock::new(DiagCtxtInner { + flags: DiagCtxtFlags { can_emit_warnings: true, ..Default::default() }, lint_err_count: 0, err_count: 0, warn_count: 0, @@ -676,7 +673,7 @@ impl Handler { let key = (span.with_parent(None), key); if diag.is_error() { - if matches!(diag.level, Level::Error { lint: true }) { + if matches!(diag.level, Error { lint: true }) { inner.lint_err_count += 1; } else { inner.err_count += 1; @@ -700,7 +697,7 @@ impl Handler { let key = (span.with_parent(None), key); let diag = inner.stashed_diagnostics.remove(&key)?; if diag.is_error() { - if matches!(diag.level, Level::Error { lint: true }) { + if matches!(diag.level, Error { lint: true }) { inner.lint_err_count -= 1; } else { inner.err_count -= 1; @@ -722,21 +719,6 @@ impl Handler { self.inner.borrow_mut().emit_stashed_diagnostics() } - /// Construct a builder with the `msg` at the level appropriate for the - /// specific `EmissionGuarantee`. - /// - /// Note: this is necessary for `derive(Diagnostic)`, but shouldn't be used - /// outside of that. Instead use `struct_err`, `struct_warn`, etc., which - /// make the diagnostic kind clearer. - #[rustc_lint_diagnostics] - #[track_caller] - pub fn struct_diagnostic<G: EmissionGuarantee>( - &self, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, G> { - G::make_diagnostic_builder(self, msg) - } - /// Construct a builder at the `Warning` level at the given `span` and with the `msg`. /// /// Attempting to `.emit()` the builder will only emit if either: @@ -755,37 +737,6 @@ impl Handler { } /// Construct a builder at the `Warning` level at the given `span` and with the `msg`. - /// The `id` is used for lint emissions which should also fulfill a lint expectation. - /// - /// Attempting to `.emit()` the builder will only emit if either: - /// * `can_emit_warnings` is `true` - /// * `is_force_warn` was set in `DiagnosticId::Lint` - #[track_caller] - pub fn struct_span_warn_with_expectation( - &self, - span: impl Into<MultiSpan>, - msg: impl Into<DiagnosticMessage>, - id: LintExpectationId, - ) -> DiagnosticBuilder<'_, ()> { - let mut result = self.struct_warn_with_expectation(msg, id); - result.set_span(span); - result - } - - /// Construct a builder at the `Allow` level at the given `span` and with the `msg`. - #[rustc_lint_diagnostics] - #[track_caller] - pub fn struct_span_allow( - &self, - span: impl Into<MultiSpan>, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, ()> { - let mut result = self.struct_allow(msg); - result.set_span(span); - result - } - - /// Construct a builder at the `Warning` level at the given `span` and with the `msg`. /// Also include a code. #[rustc_lint_diagnostics] #[track_caller] @@ -808,29 +759,14 @@ impl Handler { #[rustc_lint_diagnostics] #[track_caller] pub fn struct_warn(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> { - DiagnosticBuilder::new(self, Level::Warning(None), msg) - } - - /// Construct a builder at the `Warning` level with the `msg`. The `id` is used for - /// lint emissions which should also fulfill a lint expectation. - /// - /// Attempting to `.emit()` the builder will only emit if either: - /// * `can_emit_warnings` is `true` - /// * `is_force_warn` was set in `DiagnosticId::Lint` - #[track_caller] - pub fn struct_warn_with_expectation( - &self, - msg: impl Into<DiagnosticMessage>, - id: LintExpectationId, - ) -> DiagnosticBuilder<'_, ()> { - DiagnosticBuilder::new(self, Level::Warning(Some(id)), msg) + DiagnosticBuilder::new(self, Warning(None), msg) } /// Construct a builder at the `Allow` level with the `msg`. #[rustc_lint_diagnostics] #[track_caller] pub fn struct_allow(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> { - DiagnosticBuilder::new(self, Level::Allow, msg) + DiagnosticBuilder::new(self, Allow, msg) } /// Construct a builder at the `Expect` level with the `msg`. @@ -841,7 +777,7 @@ impl Handler { msg: impl Into<DiagnosticMessage>, id: LintExpectationId, ) -> DiagnosticBuilder<'_, ()> { - DiagnosticBuilder::new(self, Level::Expect(id), msg) + DiagnosticBuilder::new(self, Expect(id), msg) } /// Construct a builder at the `Error` level at the given `span` and with the `msg`. @@ -851,7 +787,7 @@ impl Handler { &self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'_> { let mut result = self.struct_err(msg); result.set_span(span); result @@ -865,7 +801,7 @@ impl Handler { span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>, code: DiagnosticId, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'_> { let mut result = self.struct_span_err(span, msg); result.code(code); result @@ -875,18 +811,8 @@ impl Handler { // FIXME: This method should be removed (every error should have an associated error code). #[rustc_lint_diagnostics] #[track_caller] - pub fn struct_err( - &self, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - DiagnosticBuilder::new(self, Level::Error { lint: false }, msg) - } - - /// This should only be used by `rustc_middle::lint::struct_lint_level`. Do not use it for hard errors. - #[doc(hidden)] - #[track_caller] - pub fn struct_err_lint(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> { - DiagnosticBuilder::new(self, Level::Error { lint: true }, msg) + pub fn struct_err(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_> { + DiagnosticBuilder::new(self, Error { lint: false }, msg) } /// Construct a builder at the `Error` level with the `msg` and the `code`. @@ -896,7 +822,7 @@ impl Handler { &self, msg: impl Into<DiagnosticMessage>, code: DiagnosticId, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'_> { let mut result = self.struct_err(msg); result.code(code); result @@ -922,7 +848,7 @@ impl Handler { &self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, !> { + ) -> DiagnosticBuilder<'_, FatalAbort> { let mut result = self.struct_fatal(msg); result.set_span(span); result @@ -936,7 +862,7 @@ impl Handler { span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>, code: DiagnosticId, - ) -> DiagnosticBuilder<'_, !> { + ) -> DiagnosticBuilder<'_, FatalAbort> { let mut result = self.struct_span_fatal(span, msg); result.code(code); result @@ -945,8 +871,11 @@ impl Handler { /// Construct a builder at the `Fatal` level with the `msg`. #[rustc_lint_diagnostics] #[track_caller] - pub fn struct_fatal(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, !> { - DiagnosticBuilder::new(self, Level::Fatal, msg) + pub fn struct_fatal( + &self, + msg: impl Into<DiagnosticMessage>, + ) -> DiagnosticBuilder<'_, FatalAbort> { + DiagnosticBuilder::new(self, Fatal, msg) } /// Construct a builder at the `Fatal` level with the `msg`, that doesn't abort. @@ -956,20 +885,40 @@ impl Handler { &self, msg: impl Into<DiagnosticMessage>, ) -> DiagnosticBuilder<'_, FatalError> { - DiagnosticBuilder::new(self, Level::Fatal, msg) + DiagnosticBuilder::new(self, Fatal, msg) } /// Construct a builder at the `Help` level with the `msg`. #[rustc_lint_diagnostics] pub fn struct_help(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> { - DiagnosticBuilder::new(self, Level::Help, msg) + DiagnosticBuilder::new(self, Help, msg) } /// Construct a builder at the `Note` level with the `msg`. #[rustc_lint_diagnostics] #[track_caller] pub fn struct_note(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> { - DiagnosticBuilder::new(self, Level::Note, msg) + DiagnosticBuilder::new(self, Note, msg) + } + + /// Construct a builder at the `Bug` level with the `msg`. + #[rustc_lint_diagnostics] + #[track_caller] + pub fn struct_bug(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, BugAbort> { + DiagnosticBuilder::new(self, Bug, msg) + } + + /// Construct a builder at the `Bug` level at the given `span` with the `msg`. + #[rustc_lint_diagnostics] + #[track_caller] + pub fn struct_span_bug( + &self, + span: impl Into<MultiSpan>, + msg: impl Into<DiagnosticMessage>, + ) -> DiagnosticBuilder<'_, BugAbort> { + let mut result = self.struct_bug(msg); + result.set_span(span); + result } #[rustc_lint_diagnostics] @@ -1028,7 +977,7 @@ impl Handler { } pub fn span_bug(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) -> ! { - self.inner.borrow_mut().span_bug(span, msg) + self.struct_span_bug(span, msg).emit() } /// For documentation on this, see `Session::span_delayed_bug`. @@ -1041,28 +990,22 @@ impl Handler { sp: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>, ) -> ErrorGuaranteed { - let mut inner = self.inner.borrow_mut(); - - // This is technically `self.treat_err_as_bug()` but `span_delayed_bug` is called before - // incrementing `err_count` by one, so we need to +1 the comparing. - // FIXME: Would be nice to increment err_count in a more coherent way. - if inner.flags.treat_err_as_bug.is_some_and(|c| { - inner.err_count + inner.lint_err_count + inner.delayed_bug_count() + 1 >= c.get() - }) { + let treat_next_err_as_bug = self.inner.borrow().treat_next_err_as_bug(); + if treat_next_err_as_bug { // FIXME: don't abort here if report_delayed_bugs is off - inner.span_bug(sp, msg); + self.span_bug(sp, msg); } - let mut diagnostic = Diagnostic::new(Level::DelayedBug, msg); + let mut diagnostic = Diagnostic::new(DelayedBug, msg); diagnostic.set_span(sp); - inner.emit_diagnostic(diagnostic).unwrap() + self.emit_diagnostic(diagnostic).unwrap() } - // FIXME(eddyb) note the comment inside `impl Drop for HandlerInner`, that's + // FIXME(eddyb) note the comment inside `impl Drop for DiagCtxtInner`, that's // where the explanation of what "good path" is (also, it should be renamed). pub fn good_path_delayed_bug(&self, msg: impl Into<DiagnosticMessage>) { let mut inner = self.inner.borrow_mut(); - let mut diagnostic = Diagnostic::new(Level::DelayedBug, msg); + let mut diagnostic = Diagnostic::new(DelayedBug, msg); if inner.flags.report_delayed_bugs { inner.emit_diagnostic_without_consuming(&mut diagnostic); } @@ -1071,13 +1014,6 @@ impl Handler { } #[track_caller] - pub fn span_bug_no_panic(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) { - let mut diag = Diagnostic::new(Bug, msg); - diag.set_span(span); - self.emit_diagnostic(diag); - } - - #[track_caller] #[rustc_lint_diagnostics] pub fn span_note(&self, span: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) { self.struct_span_note(span, msg).emit() @@ -1115,9 +1051,9 @@ impl Handler { self.struct_note(msg).emit() } + #[rustc_lint_diagnostics] pub fn bug(&self, msg: impl Into<DiagnosticMessage>) -> ! { - DiagnosticBuilder::<diagnostic_builder::Bug>::new(self, Bug, msg).emit(); - panic::panic_any(ExplicitBug); + self.struct_bug(msg).emit() } #[inline] @@ -1182,10 +1118,9 @@ impl Handler { match (errors.len(), warnings.len()) { (0, 0) => return, - (0, _) => inner.emitter.emit_diagnostic(&Diagnostic::new( - Level::Warning(None), - DiagnosticMessage::Str(warnings), - )), + (0, _) => inner + .emitter + .emit_diagnostic(&Diagnostic::new(Warning(None), DiagnosticMessage::Str(warnings))), (_, 0) => { inner.emit_diagnostic(Diagnostic::new(Fatal, errors)); } @@ -1217,14 +1152,12 @@ impl Handler { if error_codes.len() > 9 { "..." } else { "." } )); inner.failure_note(format!( - "For more information about an error, try \ - `rustc --explain {}`.", + "For more information about an error, try `rustc --explain {}`.", &error_codes[0] )); } else { inner.failure_note(format!( - "For more information about this error, try \ - `rustc --explain {}`.", + "For more information about this error, try `rustc --explain {}`.", &error_codes[0] )); } @@ -1274,18 +1207,16 @@ impl Handler { self.create_err(err).emit() } - pub fn create_err<'a>( - &'a self, - err: impl IntoDiagnostic<'a>, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { - err.into_diagnostic(self) + #[track_caller] + pub fn create_err<'a>(&'a self, err: impl IntoDiagnostic<'a>) -> DiagnosticBuilder<'a> { + err.into_diagnostic(self, Error { lint: false }) } pub fn create_warning<'a>( &'a self, warning: impl IntoDiagnostic<'a, ()>, ) -> DiagnosticBuilder<'a, ()> { - warning.into_diagnostic(self) + warning.into_diagnostic(self, Warning(None)) } pub fn emit_warning<'a>(&'a self, warning: impl IntoDiagnostic<'a, ()>) { @@ -1296,7 +1227,7 @@ impl Handler { &'a self, fatal: impl IntoDiagnostic<'a, FatalError>, ) -> DiagnosticBuilder<'a, FatalError> { - fatal.into_diagnostic(self) + fatal.into_diagnostic(self, Fatal) } pub fn emit_almost_fatal<'a>( @@ -1308,38 +1239,35 @@ impl Handler { pub fn create_fatal<'a>( &'a self, - fatal: impl IntoDiagnostic<'a, !>, - ) -> DiagnosticBuilder<'a, !> { - fatal.into_diagnostic(self) + fatal: impl IntoDiagnostic<'a, FatalAbort>, + ) -> DiagnosticBuilder<'a, FatalAbort> { + fatal.into_diagnostic(self, Fatal) } - pub fn emit_fatal<'a>(&'a self, fatal: impl IntoDiagnostic<'a, !>) -> ! { + pub fn emit_fatal<'a>(&'a self, fatal: impl IntoDiagnostic<'a, FatalAbort>) -> ! { self.create_fatal(fatal).emit() } pub fn create_bug<'a>( &'a self, - bug: impl IntoDiagnostic<'a, diagnostic_builder::Bug>, - ) -> DiagnosticBuilder<'a, diagnostic_builder::Bug> { - bug.into_diagnostic(self) + bug: impl IntoDiagnostic<'a, BugAbort>, + ) -> DiagnosticBuilder<'a, BugAbort> { + bug.into_diagnostic(self, Bug) } - pub fn emit_bug<'a>( - &'a self, - bug: impl IntoDiagnostic<'a, diagnostic_builder::Bug>, - ) -> diagnostic_builder::Bug { + pub fn emit_bug<'a>(&'a self, bug: impl IntoDiagnostic<'a, BugAbort>) -> ! { self.create_bug(bug).emit() } - pub fn emit_note<'a>(&'a self, note: impl IntoDiagnostic<'a, Noted>) -> Noted { + pub fn emit_note<'a>(&'a self, note: impl IntoDiagnostic<'a, ()>) { self.create_note(note).emit() } pub fn create_note<'a>( &'a self, - note: impl IntoDiagnostic<'a, Noted>, - ) -> DiagnosticBuilder<'a, Noted> { - note.into_diagnostic(self) + note: impl IntoDiagnostic<'a, ()>, + ) -> DiagnosticBuilder<'a, ()> { + note.into_diagnostic(self, Note) } pub fn emit_artifact_notification(&self, path: &Path, artifact_type: &str) { @@ -1396,12 +1324,12 @@ impl Handler { } /// This methods steals all [`LintExpectationId`]s that are stored inside - /// [`HandlerInner`] and indicate that the linked expectation has been fulfilled. + /// [`DiagCtxtInner`] and indicate that the linked expectation has been fulfilled. #[must_use] pub fn steal_fulfilled_expectation_ids(&self) -> FxHashSet<LintExpectationId> { assert!( self.inner.borrow().unstable_expect_diagnostics.is_empty(), - "`HandlerInner::unstable_expect_diagnostics` should be empty at this point", + "`DiagCtxtInner::unstable_expect_diagnostics` should be empty at this point", ); std::mem::take(&mut self.inner.borrow_mut().fulfilled_expectations) } @@ -1413,11 +1341,11 @@ impl Handler { } } -// Note: we prefer implementing operations on `Handler`, rather than -// `HandlerInner`, whenever possible. This minimizes functions where -// `Handler::foo()` just borrows `inner` and forwards a call to +// Note: we prefer implementing operations on `DiagCtxt`, rather than +// `DiagCtxtInner`, whenever possible. This minimizes functions where +// `DiagCtxt::foo()` just borrows `inner` and forwards a call to // `HanderInner::foo`. -impl HandlerInner { +impl DiagCtxtInner { /// Emit all stashed diagnostics. fn emit_stashed_diagnostics(&mut self) -> Option<ErrorGuaranteed> { let has_errors = self.has_errors(); @@ -1426,7 +1354,7 @@ impl HandlerInner { for diag in diags { // Decrement the count tracking the stash; emitting will increment it. if diag.is_error() { - if matches!(diag.level, Level::Error { lint: true }) { + if matches!(diag.level, Error { lint: true }) { self.lint_err_count -= 1; } else { self.err_count -= 1; @@ -1457,9 +1385,8 @@ impl HandlerInner { &mut self, diagnostic: &mut Diagnostic, ) -> Option<ErrorGuaranteed> { - if matches!(diagnostic.level, Level::Error { .. } | Level::Fatal) && self.treat_err_as_bug() - { - diagnostic.level = Level::Bug; + if matches!(diagnostic.level, Error { .. } | Fatal) && self.treat_err_as_bug() { + diagnostic.level = Bug; } // The `LintExpectationId` can be stable or unstable depending on when it was created. @@ -1471,7 +1398,7 @@ impl HandlerInner { return None; } - if diagnostic.level == Level::DelayedBug { + if diagnostic.level == DelayedBug { // FIXME(eddyb) this should check for `has_errors` and stop pushing // once *any* errors were emitted (and truncate `span_delayed_bugs` // when an error is first emitted, also), but maybe there's a case @@ -1487,7 +1414,7 @@ impl HandlerInner { } if diagnostic.has_future_breakage() { - // Future breakages aren't emitted if they're Level::Allowed, + // Future breakages aren't emitted if they're Level::Allow, // but they still need to be constructed and stashed below, // so they'll trigger the good-path bug check. self.suppressed_expected_diag = true; @@ -1509,7 +1436,7 @@ impl HandlerInner { return None; } - if matches!(diagnostic.level, Level::Expect(_) | Level::Allow) { + if matches!(diagnostic.level, Expect(_) | Allow) { (*TRACK_DIAGNOSTICS)(diagnostic, &mut |_| {}); return None; } @@ -1534,7 +1461,7 @@ impl HandlerInner { debug!(?self.emitted_diagnostics); let already_emitted_sub = |sub: &mut SubDiagnostic| { debug!(?sub); - if sub.level != Level::OnceNote && sub.level != Level::OnceHelp { + if sub.level != OnceNote && sub.level != OnceHelp { return false; } let mut hasher = StableHasher::new(); @@ -1559,7 +1486,7 @@ impl HandlerInner { } } if diagnostic.is_error() { - if matches!(diagnostic.level, Level::Error { lint: true }) { + if matches!(diagnostic.level, Error { lint: true }) { self.bump_lint_err_count(); } else { self.bump_err_count(); @@ -1583,6 +1510,13 @@ impl HandlerInner { }) } + // Use this one before incrementing `err_count`. + fn treat_next_err_as_bug(&self) -> bool { + self.flags.treat_err_as_bug.is_some_and(|c| { + self.err_count + self.lint_err_count + self.delayed_bug_count() + 1 >= c.get() + }) + } + fn delayed_bug_count(&self) -> usize { self.span_delayed_bugs.len() + self.good_path_delayed_bugs.len() } @@ -1591,27 +1525,22 @@ impl HandlerInner { self.err_count > 0 } - #[track_caller] - fn span_bug(&mut self, sp: impl Into<MultiSpan>, msg: impl Into<DiagnosticMessage>) -> ! { - let mut diag = Diagnostic::new(Bug, msg); - diag.set_span(sp); - self.emit_diagnostic(diag); - panic::panic_any(ExplicitBug); - } - fn failure_note(&mut self, msg: impl Into<DiagnosticMessage>) { self.emit_diagnostic(Diagnostic::new(FailureNote, msg)); } fn flush_delayed( &mut self, - bugs: impl IntoIterator<Item = DelayedDiagnostic>, + bugs: Vec<DelayedDiagnostic>, explanation: impl Into<DiagnosticMessage> + Copy, ) { - let mut no_bugs = true; + if bugs.is_empty() { + return; + } + // If backtraces are enabled, also print the query stack let backtrace = std::env::var_os("RUST_BACKTRACE").map_or(true, |x| &x != "0"); - for bug in bugs { + for (i, bug) in bugs.into_iter().enumerate() { if let Some(file) = self.ice_file.as_ref() && let Ok(mut out) = std::fs::File::options().create(true).append(true).open(file) { @@ -1619,25 +1548,25 @@ impl HandlerInner { &mut out, "delayed span bug: {}\n{}\n", bug.inner - .styled_message() + .messages() .iter() .filter_map(|(msg, _)| msg.as_str()) .collect::<String>(), &bug.note ); } - let mut bug = - if backtrace || self.ice_file.is_none() { bug.decorate() } else { bug.inner }; - if no_bugs { + if i == 0 { // Put the overall explanation before the `DelayedBug`s, to // frame them better (e.g. separate warnings from them). self.emit_diagnostic(Diagnostic::new(Bug, explanation)); - no_bugs = false; } + let mut bug = + if backtrace || self.ice_file.is_none() { bug.decorate() } else { bug.inner }; + // "Undelay" the `DelayedBug`s (into plain `Bug`s). - if bug.level != Level::DelayedBug { + if bug.level != DelayedBug { // NOTE(eddyb) not panicking here because we're already producing // an ICE, and the more information the merrier. bug.subdiagnostic(InvalidFlushedDelayedDiagnosticLevel { @@ -1645,15 +1574,13 @@ impl HandlerInner { level: bug.level, }); } - bug.level = Level::Bug; + bug.level = Bug; self.emit_diagnostic(bug); } // Panic with `DelayedBugPanic` to avoid "unexpected panic" messages. - if !no_bugs { - panic::panic_any(DelayedBugPanic); - } + panic::panic_any(DelayedBugPanic); } fn bump_lint_err_count(&mut self) { @@ -1731,25 +1658,80 @@ impl DelayedDiagnostic { #[derive(Copy, PartialEq, Eq, Clone, Hash, Debug, Encodable, Decodable)] pub enum Level { + /// For bugs in the compiler. Manifests as an ICE (internal compiler error) panic. + /// + /// Its `EmissionGuarantee` is `BugAbort`. Bug, + + /// This is a strange one: lets you register an error without emitting it. If compilation ends + /// without any other errors occurring, this will be emitted as a bug. Otherwise, it will be + /// silently dropped. I.e. "expect other errors are emitted" semantics. Useful on code paths + /// that should only be reached when compiling erroneous code. + /// + /// Its `EmissionGuarantee` is `ErrorGuaranteed`. DelayedBug, + + /// An error that causes an immediate abort. Used for things like configuration errors, + /// internal overflows, some file operation errors. + /// + /// Its `EmissionGuarantee` is `FatalAbort`, except in the non-aborting "almost fatal" case + /// that is occasionaly used, where it is `FatalError`. Fatal, + + /// An error in the code being compiled, which prevents compilation from finishing. This is the + /// most common case. + /// + /// Its `EmissionGuarantee` is `ErrorGuaranteed`. Error { - /// If this error comes from a lint, don't abort compilation even when abort_if_errors() is called. + /// If this error comes from a lint, don't abort compilation even when abort_if_errors() is + /// called. lint: bool, }, + + /// A warning about the code being compiled. Does not prevent compilation from finishing. + /// /// This [`LintExpectationId`] is used for expected lint diagnostics, which should /// also emit a warning due to the `force-warn` flag. In all other cases this should /// be `None`. + /// + /// Its `EmissionGuarantee` is `()`. Warning(Option<LintExpectationId>), + + /// A message giving additional context. Rare, because notes are more commonly attached to other + /// diagnostics such as errors. + /// + /// Its `EmissionGuarantee` is `()`. Note, - /// A note that is only emitted once. + + /// A note that is only emitted once. Rare, mostly used in circumstances relating to lints. + /// + /// Its `EmissionGuarantee` is `()`. OnceNote, + + /// A message suggesting how to fix something. Rare, because help messages are more commonly + /// attached to other diagnostics such as errors. + /// + /// Its `EmissionGuarantee` is `()`. Help, - /// A help that is only emitted once. + + /// A help that is only emitted once. Rare. + /// + /// Its `EmissionGuarantee` is `()`. OnceHelp, + + /// Similar to `Note`, but used in cases where compilation has failed. Rare. + /// + /// Its `EmissionGuarantee` is `()`. FailureNote, + + /// Only used for lints. + /// + /// Its `EmissionGuarantee` is `()`. Allow, + + /// Only used for lints. + /// + /// Its `EmissionGuarantee` is `()`. Expect(LintExpectationId), } @@ -1789,8 +1771,7 @@ impl Level { Note | OnceNote => "note", Help | OnceHelp => "help", FailureNote => "failure-note", - Allow => panic!("Shouldn't call on allowed error"), - Expect(_) => panic!("Shouldn't call on expected error"), + Allow | Expect(_) => unreachable!(), } } @@ -1800,7 +1781,7 @@ impl Level { pub fn get_expectation_id(&self) -> Option<LintExpectationId> { match self { - Level::Expect(id) | Level::Warning(Some(id)) => Some(*id), + Expect(id) | Warning(Some(id)) => Some(*id), _ => None, } } diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index d75556ac7c4..1fd4d2d55dd 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -790,7 +790,7 @@ impl SyntaxExtension { .map(|attr| { // Override `helper_attrs` passed above if it's a built-in macro, // marking `proc_macro_derive` macros as built-in is not a realistic use case. - parse_macro_name_and_helper_attrs(sess.diagnostic(), attr, "built-in").map_or_else( + parse_macro_name_and_helper_attrs(sess.dcx(), attr, "built-in").map_or_else( || (Some(name), Vec::new()), |(name, helper_attrs)| (Some(name), helper_attrs), ) @@ -1118,15 +1118,12 @@ impl<'a> ExtCtxt<'a> { &self, sp: S, msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { - self.sess.diagnostic().struct_span_err(sp, msg) + ) -> DiagnosticBuilder<'a> { + self.sess.dcx().struct_span_err(sp, msg) } #[track_caller] - pub fn create_err( - &self, - err: impl IntoDiagnostic<'a>, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + pub fn create_err(&self, err: impl IntoDiagnostic<'a>) -> DiagnosticBuilder<'a> { self.sess.create_err(err) } @@ -1143,10 +1140,10 @@ impl<'a> ExtCtxt<'a> { #[rustc_lint_diagnostics] #[track_caller] pub fn span_err<S: Into<MultiSpan>>(&self, sp: S, msg: impl Into<DiagnosticMessage>) { - self.sess.diagnostic().span_err(sp, msg); + self.sess.dcx().span_err(sp, msg); } pub fn span_bug<S: Into<MultiSpan>>(&self, sp: S, msg: impl Into<DiagnosticMessage>) -> ! { - self.sess.diagnostic().span_bug(sp, msg); + self.sess.dcx().span_bug(sp, msg); } pub fn trace_macros_diag(&mut self) { for (span, notes) in self.expansions.iter() { @@ -1159,8 +1156,9 @@ impl<'a> ExtCtxt<'a> { // Fixme: does this result in errors? self.expansions.clear(); } + #[rustc_lint_diagnostics] pub fn bug(&self, msg: &'static str) -> ! { - self.sess.diagnostic().bug(msg); + self.sess.dcx().bug(msg); } pub fn trace_macros(&self) -> bool { self.ecfg.trace_mac @@ -1204,11 +1202,10 @@ pub fn resolve_path( .expect("attempting to resolve a file path in an external file"), FileName::DocTest(path, _) => path, other => { - return Err(errors::ResolveRelativePath { + return Err(parse_sess.dcx.create_err(errors::ResolveRelativePath { span, path: parse_sess.source_map().filename_for_diagnostics(&other).to_string(), - } - .into_diagnostic(&parse_sess.span_diagnostic)); + })); } }; result.pop(); @@ -1230,7 +1227,7 @@ pub fn expr_to_spanned_string<'a>( cx: &'a mut ExtCtxt<'_>, expr: P<ast::Expr>, err_msg: &'static str, -) -> Result<(Symbol, ast::StrStyle, Span), Option<(DiagnosticBuilder<'a, ErrorGuaranteed>, bool)>> { +) -> Result<(Symbol, ast::StrStyle, Span), Option<(DiagnosticBuilder<'a>, bool)>> { // Perform eager expansion on the expression. // We want to be able to handle e.g., `concat!("foo", "bar")`. let expr = cx.expander().fully_expand_fragment(AstFragment::Expr(expr)).make_expr(); @@ -1350,7 +1347,7 @@ pub fn get_exprs_from_tts(cx: &mut ExtCtxt<'_>, tts: TokenStream) -> Option<Vec< } pub fn parse_macro_name_and_helper_attrs( - diag: &rustc_errors::Handler, + dcx: &rustc_errors::DiagCtxt, attr: &Attribute, macro_type: &str, ) -> Option<(Symbol, Vec<Symbol>)> { @@ -1359,23 +1356,23 @@ pub fn parse_macro_name_and_helper_attrs( // `#[proc_macro_derive(Foo, attributes(A, ..))]` let list = attr.meta_item_list()?; if list.len() != 1 && list.len() != 2 { - diag.emit_err(errors::AttrNoArguments { span: attr.span }); + dcx.emit_err(errors::AttrNoArguments { span: attr.span }); return None; } let Some(trait_attr) = list[0].meta_item() else { - diag.emit_err(errors::NotAMetaItem { span: list[0].span() }); + dcx.emit_err(errors::NotAMetaItem { span: list[0].span() }); return None; }; let trait_ident = match trait_attr.ident() { Some(trait_ident) if trait_attr.is_word() => trait_ident, _ => { - diag.emit_err(errors::OnlyOneWord { span: trait_attr.span }); + dcx.emit_err(errors::OnlyOneWord { span: trait_attr.span }); return None; } }; if !trait_ident.name.can_be_raw() { - diag.emit_err(errors::CannotBeNameOfMacro { + dcx.emit_err(errors::CannotBeNameOfMacro { span: trait_attr.span, trait_ident, macro_type, @@ -1385,29 +1382,29 @@ pub fn parse_macro_name_and_helper_attrs( let attributes_attr = list.get(1); let proc_attrs: Vec<_> = if let Some(attr) = attributes_attr { if !attr.has_name(sym::attributes) { - diag.emit_err(errors::ArgumentNotAttributes { span: attr.span() }); + dcx.emit_err(errors::ArgumentNotAttributes { span: attr.span() }); } attr.meta_item_list() .unwrap_or_else(|| { - diag.emit_err(errors::AttributesWrongForm { span: attr.span() }); + dcx.emit_err(errors::AttributesWrongForm { span: attr.span() }); &[] }) .iter() .filter_map(|attr| { let Some(attr) = attr.meta_item() else { - diag.emit_err(errors::AttributeMetaItem { span: attr.span() }); + dcx.emit_err(errors::AttributeMetaItem { span: attr.span() }); return None; }; let ident = match attr.ident() { Some(ident) if attr.is_word() => ident, _ => { - diag.emit_err(errors::AttributeSingleWord { span: attr.span }); + dcx.emit_err(errors::AttributeSingleWord { span: attr.span }); return None; } }; if !ident.name.can_be_raw() { - diag.emit_err(errors::HelperAttributeNameInvalid { + dcx.emit_err(errors::HelperAttributeNameInvalid { span: attr.span, name: ident, }); diff --git a/compiler/rustc_expand/src/build.rs b/compiler/rustc_expand/src/build.rs index 86f555fa08b..f9bfebee12e 100644 --- a/compiler/rustc_expand/src/build.rs +++ b/compiler/rustc_expand/src/build.rs @@ -134,10 +134,13 @@ impl<'a> ExtCtxt<'a> { pub fn trait_bound(&self, path: ast::Path, is_const: bool) -> ast::GenericBound { ast::GenericBound::Trait( self.poly_trait_ref(path.span, path), - if is_const { - ast::TraitBoundModifier::MaybeConst(DUMMY_SP) - } else { - ast::TraitBoundModifier::None + ast::TraitBoundModifiers { + polarity: ast::BoundPolarity::Positive, + constness: if is_const { + ast::BoundConstness::Maybe(DUMMY_SP) + } else { + ast::BoundConstness::Never + }, }, ) } @@ -488,7 +491,7 @@ impl<'a> ExtCtxt<'a> { path: ast::Path, field_pats: ThinVec<ast::PatField>, ) -> P<ast::Pat> { - self.pat(span, PatKind::Struct(None, path, field_pats, false)) + self.pat(span, PatKind::Struct(None, path, field_pats, ast::PatFieldsRest::None)) } pub fn pat_tuple(&self, span: Span, pats: ThinVec<P<ast::Pat>>) -> P<ast::Pat> { self.pat(span, PatKind::Tuple(pats)) diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs index 89caf8aa231..da727ddb208 100644 --- a/compiler/rustc_expand/src/expand.rs +++ b/compiler/rustc_expand/src/expand.rs @@ -41,132 +41,6 @@ use std::path::PathBuf; use std::rc::Rc; use std::{iter, mem}; -#[cfg(bootstrap)] -macro_rules! ast_fragments { - ( - $($Kind:ident($AstTy:ty) { - $kind_name:expr; - $(one fn $mut_visit_ast:ident; fn $visit_ast:ident;)? - $(many fn $flat_map_ast_elt:ident; fn $visit_ast_elt:ident($($args:tt)*);)? - fn $make_ast:ident; - })* - ) => { - /// A fragment of AST that can be produced by a single macro expansion. - /// Can also serve as an input and intermediate result for macro expansion operations. - pub enum AstFragment { - OptExpr(Option<P<ast::Expr>>), - MethodReceiverExpr(P<ast::Expr>), - $($Kind($AstTy),)* - } - - /// "Discriminant" of an AST fragment. - #[derive(Copy, Clone, PartialEq, Eq)] - pub enum AstFragmentKind { - OptExpr, - MethodReceiverExpr, - $($Kind,)* - } - - impl AstFragmentKind { - pub fn name(self) -> &'static str { - match self { - AstFragmentKind::OptExpr => "expression", - AstFragmentKind::MethodReceiverExpr => "expression", - $(AstFragmentKind::$Kind => $kind_name,)* - } - } - - fn make_from<'a>(self, result: Box<dyn MacResult + 'a>) -> Option<AstFragment> { - match self { - AstFragmentKind::OptExpr => - result.make_expr().map(Some).map(AstFragment::OptExpr), - AstFragmentKind::MethodReceiverExpr => - result.make_expr().map(AstFragment::MethodReceiverExpr), - $(AstFragmentKind::$Kind => result.$make_ast().map(AstFragment::$Kind),)* - } - } - } - - impl AstFragment { - pub fn add_placeholders(&mut self, placeholders: &[NodeId]) { - if placeholders.is_empty() { - return; - } - match self { - $($(AstFragment::$Kind(ast) => ast.extend(placeholders.iter().flat_map(|id| { - ${ignore(flat_map_ast_elt)} - placeholder(AstFragmentKind::$Kind, *id, None).$make_ast() - })),)?)* - _ => panic!("unexpected AST fragment kind") - } - } - - pub fn make_opt_expr(self) -> Option<P<ast::Expr>> { - match self { - AstFragment::OptExpr(expr) => expr, - _ => panic!("AstFragment::make_* called on the wrong kind of fragment"), - } - } - - pub fn make_method_receiver_expr(self) -> P<ast::Expr> { - match self { - AstFragment::MethodReceiverExpr(expr) => expr, - _ => panic!("AstFragment::make_* called on the wrong kind of fragment"), - } - } - - $(pub fn $make_ast(self) -> $AstTy { - match self { - AstFragment::$Kind(ast) => ast, - _ => panic!("AstFragment::make_* called on the wrong kind of fragment"), - } - })* - - fn make_ast<T: InvocationCollectorNode>(self) -> T::OutputTy { - T::fragment_to_output(self) - } - - pub fn mut_visit_with<F: MutVisitor>(&mut self, vis: &mut F) { - match self { - AstFragment::OptExpr(opt_expr) => { - visit_clobber(opt_expr, |opt_expr| { - if let Some(expr) = opt_expr { - vis.filter_map_expr(expr) - } else { - None - } - }); - } - AstFragment::MethodReceiverExpr(expr) => vis.visit_method_receiver_expr(expr), - $($(AstFragment::$Kind(ast) => vis.$mut_visit_ast(ast),)?)* - $($(AstFragment::$Kind(ast) => - ast.flat_map_in_place(|ast| vis.$flat_map_ast_elt(ast)),)?)* - } - } - - pub fn visit_with<'a, V: Visitor<'a>>(&'a self, visitor: &mut V) { - match self { - AstFragment::OptExpr(Some(expr)) => visitor.visit_expr(expr), - AstFragment::OptExpr(None) => {} - AstFragment::MethodReceiverExpr(expr) => visitor.visit_method_receiver_expr(expr), - $($(AstFragment::$Kind(ast) => visitor.$visit_ast(ast),)?)* - $($(AstFragment::$Kind(ast) => for ast_elt in &ast[..] { - visitor.$visit_ast_elt(ast_elt, $($args)*); - })?)* - } - } - } - - impl<'a> MacResult for crate::mbe::macro_rules::ParserAnyMacro<'a> { - $(fn $make_ast(self: Box<crate::mbe::macro_rules::ParserAnyMacro<'a>>) - -> Option<$AstTy> { - Some(self.make(AstFragmentKind::$Kind).$make_ast()) - })* - } - } -} - -#[cfg(not(bootstrap))] macro_rules! ast_fragments { ( $($Kind:ident($AstTy:ty) { diff --git a/compiler/rustc_expand/src/mbe/diagnostics.rs b/compiler/rustc_expand/src/mbe/diagnostics.rs index 8f80e6e2927..b6718ec8c41 100644 --- a/compiler/rustc_expand/src/mbe/diagnostics.rs +++ b/compiler/rustc_expand/src/mbe/diagnostics.rs @@ -215,7 +215,7 @@ impl<'matcher> Tracker<'matcher> for FailureForwarder { } pub(super) fn emit_frag_parse_err( - mut e: DiagnosticBuilder<'_, rustc_errors::ErrorGuaranteed>, + mut e: DiagnosticBuilder<'_>, parser: &Parser<'_>, orig_parser: &mut Parser<'_>, site_span: Span, @@ -224,11 +224,11 @@ pub(super) fn emit_frag_parse_err( ) { // FIXME(davidtwco): avoid depending on the error message text if parser.token == token::Eof - && let DiagnosticMessage::Str(message) = &e.message[0].0 + && let DiagnosticMessage::Str(message) = &e.messages[0].0 && message.ends_with(", found `<eof>`") { - let msg = &e.message[0]; - e.message[0] = ( + let msg = &e.messages[0]; + e.messages[0] = ( DiagnosticMessage::from(format!( "macro expansion ends with an incomplete expression: {}", message.replace(", found `<eof>`", ""), diff --git a/compiler/rustc_expand/src/mbe/macro_check.rs b/compiler/rustc_expand/src/mbe/macro_check.rs index 0b1f25b67c8..e66cfbe6fb6 100644 --- a/compiler/rustc_expand/src/mbe/macro_check.rs +++ b/compiler/rustc_expand/src/mbe/macro_check.rs @@ -205,7 +205,7 @@ pub(super) fn check_meta_variables( rhses: &[TokenTree], ) -> bool { if lhses.len() != rhses.len() { - sess.span_diagnostic.span_bug(span, "length mismatch between LHSes and RHSes") + sess.dcx.span_bug(span, "length mismatch between LHSes and RHSes") } let mut valid = true; for (lhs, rhs) in iter::zip(lhses, rhses) { @@ -244,7 +244,7 @@ fn check_binders( // MetaVar(fragment) and not as MetaVarDecl(y, fragment). TokenTree::MetaVar(span, name) => { if macros.is_empty() { - sess.span_diagnostic.span_bug(span, "unexpected MetaVar in lhs"); + sess.dcx.span_bug(span, "unexpected MetaVar in lhs"); } let name = MacroRulesNormalizedIdent::new(name); // There are 3 possibilities: @@ -275,14 +275,13 @@ fn check_binders( ); } if !macros.is_empty() { - sess.span_diagnostic.span_bug(span, "unexpected MetaVarDecl in nested lhs"); + sess.dcx.span_bug(span, "unexpected MetaVarDecl in nested lhs"); } let name = MacroRulesNormalizedIdent::new(name); if let Some(prev_info) = get_binder_info(macros, binders, name) { // Duplicate binders at the top-level macro definition are errors. The lint is only // for nested macro definitions. - sess.span_diagnostic - .emit_err(errors::DuplicateMatcherBinding { span, prev: prev_info.span }); + sess.dcx.emit_err(errors::DuplicateMatcherBinding { span, prev: prev_info.span }); *valid = false; } else { binders.insert(name, BinderInfo { span, ops: ops.into() }); @@ -341,7 +340,7 @@ fn check_occurrences( match *rhs { TokenTree::Token(..) => {} TokenTree::MetaVarDecl(span, _name, _kind) => { - sess.span_diagnostic.span_bug(span, "unexpected MetaVarDecl in rhs") + sess.dcx.span_bug(span, "unexpected MetaVarDecl in rhs") } TokenTree::MetaVar(span, name) => { let name = MacroRulesNormalizedIdent::new(name); diff --git a/compiler/rustc_expand/src/mbe/macro_rules.rs b/compiler/rustc_expand/src/mbe/macro_rules.rs index 393eec3997b..44f10e7d380 100644 --- a/compiler/rustc_expand/src/mbe/macro_rules.rs +++ b/compiler/rustc_expand/src/mbe/macro_rules.rs @@ -236,6 +236,13 @@ fn expand_macro<'cx>( target_sp.open = source_sp.open.with_ctxt(ctxt); target_sp.close = source_sp.close.with_ctxt(ctxt); } + ( + TokenTree::Delimited(target_sp, ..), + mbe::TokenTree::MetaVar(source_sp, ..), + ) => { + target_sp.open = source_sp.with_ctxt(ctxt); + target_sp.close = source_sp.with_ctxt(ctxt).shrink_to_hi(); + } _ => { let sp = rhs_tt.span().with_ctxt(ctxt); tt.set_span(sp); @@ -395,7 +402,7 @@ pub fn compile_declarative_macro( }; let dummy_syn_ext = || (mk_syn_ext(Box::new(macro_rules_dummy_expander)), Vec::new()); - let diag = &sess.parse_sess.span_diagnostic; + let dcx = &sess.parse_sess.dcx; let lhs_nm = Ident::new(sym::lhs, def.span); let rhs_nm = Ident::new(sym::rhs, def.span); let tt_spec = Some(NonterminalKind::TT); @@ -475,14 +482,14 @@ pub fn compile_declarative_macro( let s = parse_failure_msg(&token); let sp = token.span.substitute_dummy(def.span); - let mut err = sess.diagnostic().struct_span_err(sp, s); + let mut err = sess.dcx().struct_span_err(sp, s); err.span_label(sp, msg); annotate_doc_comment(&mut err, sess.source_map(), sp); err.emit(); return dummy_syn_ext(); } Error(sp, msg) => { - sess.diagnostic().struct_span_err(sp.substitute_dummy(def.span), msg).emit(); + sess.dcx().struct_span_err(sp.substitute_dummy(def.span), msg).emit(); return dummy_syn_ext(); } ErrorReported(_) => { @@ -511,10 +518,10 @@ pub fn compile_declarative_macro( valid &= check_lhs_nt_follows(&sess.parse_sess, def, &tt); return tt; } - sess.diagnostic().span_bug(def.span, "wrong-structured lhs") + sess.dcx().span_bug(def.span, "wrong-structured lhs") }) .collect::<Vec<mbe::TokenTree>>(), - _ => sess.diagnostic().span_bug(def.span, "wrong-structured lhs"), + _ => sess.dcx().span_bug(def.span, "wrong-structured lhs"), }; let rhses = match &argument_map[&MacroRulesNormalizedIdent::new(rhs_nm)] { @@ -533,10 +540,10 @@ pub fn compile_declarative_macro( .pop() .unwrap(); } - sess.diagnostic().span_bug(def.span, "wrong-structured rhs") + sess.dcx().span_bug(def.span, "wrong-structured rhs") }) .collect::<Vec<mbe::TokenTree>>(), - _ => sess.diagnostic().span_bug(def.span, "wrong-structured rhs"), + _ => sess.dcx().span_bug(def.span, "wrong-structured rhs"), }; for rhs in &rhses { @@ -553,10 +560,10 @@ pub fn compile_declarative_macro( let (transparency, transparency_error) = attr::find_transparency(&def.attrs, macro_rules); match transparency_error { Some(TransparencyError::UnknownTransparency(value, span)) => { - diag.span_err(span, format!("unknown macro transparency: `{value}`")); + dcx.span_err(span, format!("unknown macro transparency: `{value}`")); } Some(TransparencyError::MultipleTransparencyAttrs(old_span, new_span)) => { - diag.span_err(vec![old_span, new_span], "multiple macro transparency attributes"); + dcx.span_err(vec![old_span, new_span], "multiple macro transparency attributes"); } None => {} } @@ -592,7 +599,7 @@ pub fn compile_declarative_macro( mbe::TokenTree::Delimited(.., delimited) => { mbe::macro_parser::compute_locs(&delimited.tts) } - _ => sess.diagnostic().span_bug(def.span, "malformed macro lhs"), + _ => sess.dcx().span_bug(def.span, "malformed macro lhs"), } }) .collect() @@ -619,7 +626,7 @@ fn check_lhs_nt_follows(sess: &ParseSess, def: &ast::Item, lhs: &mbe::TokenTree) check_matcher(sess, def, &delimited.tts) } else { let msg = "invalid macro matcher; matchers must be contained in balanced delimiters"; - sess.span_diagnostic.span_err(lhs.span(), msg); + sess.dcx.span_err(lhs.span(), msg); false } // we don't abort on errors on rejection, the driver will do that for us @@ -645,8 +652,7 @@ fn is_empty_token_tree(sess: &ParseSess, seq: &mbe::SequenceRepetition) -> bool iter.next(); } let span = t.span.to(now.span); - sess.span_diagnostic - .span_note(span, "doc comments are ignored in matcher position"); + sess.dcx.span_note(span, "doc comments are ignored in matcher position"); } mbe::TokenTree::Sequence(_, sub_seq) if (sub_seq.kleene.op == mbe::KleeneOp::ZeroOrMore @@ -676,7 +682,7 @@ fn check_lhs_no_empty_seq(sess: &ParseSess, tts: &[mbe::TokenTree]) -> bool { TokenTree::Sequence(span, seq) => { if is_empty_token_tree(sess, seq) { let sp = span.entire(); - sess.span_diagnostic.span_err(sp, "repetition matches empty token tree"); + sess.dcx.span_err(sp, "repetition matches empty token tree"); return false; } if !check_lhs_no_empty_seq(sess, &seq.tts) { @@ -693,7 +699,7 @@ fn check_rhs(sess: &ParseSess, rhs: &mbe::TokenTree) -> bool { match *rhs { mbe::TokenTree::Delimited(..) => return true, _ => { - sess.span_diagnostic.span_err(rhs.span(), "macro rhs must be delimited"); + sess.dcx.span_err(rhs.span(), "macro rhs must be delimited"); } } false @@ -702,9 +708,9 @@ fn check_rhs(sess: &ParseSess, rhs: &mbe::TokenTree) -> bool { fn check_matcher(sess: &ParseSess, def: &ast::Item, matcher: &[mbe::TokenTree]) -> bool { let first_sets = FirstSets::new(matcher); let empty_suffix = TokenSet::empty(); - let err = sess.span_diagnostic.err_count(); + let err = sess.dcx.err_count(); check_matcher_core(sess, def, &first_sets, matcher, &empty_suffix); - err == sess.span_diagnostic.err_count() + err == sess.dcx.err_count() } fn has_compile_error_macro(rhs: &mbe::TokenTree) -> bool { @@ -1183,7 +1189,7 @@ fn check_matcher_core<'tt>( }; let sp = next_token.span(); - let mut err = sess.span_diagnostic.struct_span_err( + let mut err = sess.dcx.struct_span_err( sp, format!( "`${name}:{frag}` {may_be} followed by `{next}`, which \ diff --git a/compiler/rustc_expand/src/mbe/metavar_expr.rs b/compiler/rustc_expand/src/mbe/metavar_expr.rs index 4b8c6feb93e..e3dc73d0d85 100644 --- a/compiler/rustc_expand/src/mbe/metavar_expr.rs +++ b/compiler/rustc_expand/src/mbe/metavar_expr.rs @@ -36,7 +36,7 @@ impl MetaVarExpr { let ident = parse_ident(&mut tts, sess, outer_span)?; let Some(TokenTree::Delimited(.., Delimiter::Parenthesis, args)) = tts.next() else { let msg = "meta-variable expression parameter must be wrapped in parentheses"; - return Err(sess.span_diagnostic.struct_span_err(ident.span, msg)); + return Err(sess.dcx.struct_span_err(ident.span, msg)); }; check_trailing_token(&mut tts, sess)?; let mut iter = args.trees(); @@ -50,7 +50,7 @@ impl MetaVarExpr { "length" => MetaVarExpr::Length(parse_depth(&mut iter, sess, ident.span)?), _ => { let err_msg = "unrecognized meta-variable expression"; - let mut err = sess.span_diagnostic.struct_span_err(ident.span, err_msg); + let mut err = sess.dcx.struct_span_err(ident.span, err_msg); err.span_suggestion( ident.span, "supported expressions are count, ignore, index and length", @@ -79,7 +79,7 @@ fn check_trailing_token<'sess>( ) -> PResult<'sess, ()> { if let Some(tt) = iter.next() { let mut diag = sess - .span_diagnostic + .dcx .struct_span_err(tt.span(), format!("unexpected token: {}", pprust::tt_to_string(tt))); diag.span_note(tt.span(), "meta-variable expression must not have trailing tokens"); Err(diag) @@ -98,7 +98,7 @@ fn parse_count<'sess>( let ident = parse_ident(iter, sess, span)?; let depth = if try_eat_comma(iter) { if iter.look_ahead(0).is_none() { - return Err(sess.span_diagnostic.struct_span_err( + return Err(sess.dcx.struct_span_err( span, "`count` followed by a comma must have an associated index indicating its depth", )); @@ -119,7 +119,7 @@ fn parse_depth<'sess>( let Some(tt) = iter.next() else { return Ok(0) }; let TokenTree::Token(token::Token { kind: token::TokenKind::Literal(lit), .. }, _) = tt else { return Err(sess - .span_diagnostic + .dcx .struct_span_err(span, "meta-variable expression depth must be a literal")); }; if let Ok(lit_kind) = LitKind::from_token_lit(*lit) @@ -129,7 +129,7 @@ fn parse_depth<'sess>( Ok(n_usize) } else { let msg = "only unsuffixes integer literals are supported in meta-variable expressions"; - Err(sess.span_diagnostic.struct_span_err(span, msg)) + Err(sess.dcx.struct_span_err(span, msg)) } } @@ -146,9 +146,8 @@ fn parse_ident<'sess>( return Ok(elem); } let token_str = pprust::token_to_string(token); - let mut err = sess - .span_diagnostic - .struct_span_err(span, format!("expected identifier, found `{}`", &token_str)); + let mut err = + sess.dcx.struct_span_err(span, format!("expected identifier, found `{}`", &token_str)); err.span_suggestion( token.span, format!("try removing `{}`", &token_str), @@ -157,7 +156,7 @@ fn parse_ident<'sess>( ); return Err(err); } - Err(sess.span_diagnostic.struct_span_err(span, "expected identifier")) + Err(sess.dcx.struct_span_err(span, "expected identifier")) } /// Tries to move the iterator forward returning `true` if there is a comma. If not, then the @@ -181,7 +180,7 @@ fn eat_dollar<'sess>( let _ = iter.next(); return Ok(()); } - Err(sess.span_diagnostic.struct_span_err( + Err(sess.dcx.struct_span_err( span, "meta-variables within meta-variable expressions must be referenced using a dollar sign", )) diff --git a/compiler/rustc_expand/src/mbe/quoted.rs b/compiler/rustc_expand/src/mbe/quoted.rs index ab9fb20b364..445be01bc97 100644 --- a/compiler/rustc_expand/src/mbe/quoted.rs +++ b/compiler/rustc_expand/src/mbe/quoted.rs @@ -84,7 +84,7 @@ pub(super) fn parse( "invalid fragment specifier `{}`", frag.name ); - sess.span_diagnostic + sess.dcx .struct_span_err(span, msg) .help(VALID_FRAGMENT_NAMES_MSG) .emit(); @@ -195,7 +195,7 @@ fn parse_tree<'a>( _ => { let tok = pprust::token_kind_to_string(&token::OpenDelim(delim)); let msg = format!("expected `(` or `{{`, found `{tok}`"); - sess.span_diagnostic.span_err(delim_span.entire(), msg); + sess.dcx.span_err(delim_span.entire(), msg); } } } @@ -244,7 +244,7 @@ fn parse_tree<'a>( Some(tokenstream::TokenTree::Token(token, _)) => { let msg = format!("expected identifier, found `{}`", pprust::token_to_string(token),); - sess.span_diagnostic.span_err(token.span, msg); + sess.dcx.span_err(token.span, msg); TokenTree::MetaVar(token.span, Ident::empty()) } @@ -325,7 +325,7 @@ fn parse_sep_and_kleene_op<'a>( // #2 is the `?` Kleene op, which does not take a separator (error) Ok(Ok((KleeneOp::ZeroOrOne, span))) => { // Error! - sess.span_diagnostic.span_err( + sess.dcx.span_err( token.span, "the `?` macro repetition operator does not take a separator", ); @@ -346,7 +346,7 @@ fn parse_sep_and_kleene_op<'a>( }; // If we ever get to this point, we have experienced an "unexpected token" error - sess.span_diagnostic.span_err(span, "expected one of: `*`, `+`, or `?`"); + sess.dcx.span_err(span, "expected one of: `*`, `+`, or `?`"); // Return a dummy (None, KleeneToken::new(KleeneOp::ZeroOrMore, span)) @@ -356,9 +356,8 @@ fn parse_sep_and_kleene_op<'a>( // // For example, `macro_rules! foo { ( ${length()} ) => {} }` fn span_dollar_dollar_or_metavar_in_the_lhs_err(sess: &ParseSess, token: &Token) { - sess.span_diagnostic - .span_err(token.span, format!("unexpected token: {}", pprust::token_to_string(token))); - sess.span_diagnostic.span_note( + sess.dcx.span_err(token.span, format!("unexpected token: {}", pprust::token_to_string(token))); + sess.dcx.span_note( token.span, "`$$` and meta-variable expressions are not allowed inside macro parameter definitions", ); diff --git a/compiler/rustc_expand/src/mbe/transcribe.rs b/compiler/rustc_expand/src/mbe/transcribe.rs index 80fd82e0302..ac5f3fb325d 100644 --- a/compiler/rustc_expand/src/mbe/transcribe.rs +++ b/compiler/rustc_expand/src/mbe/transcribe.rs @@ -9,8 +9,8 @@ use rustc_ast::mut_visit::{self, MutVisitor}; use rustc_ast::token::{self, Delimiter, Token, TokenKind}; use rustc_ast::tokenstream::{DelimSpacing, DelimSpan, Spacing, TokenStream, TokenTree}; use rustc_data_structures::fx::FxHashMap; +use rustc_errors::DiagnosticBuilder; use rustc_errors::{pluralize, PResult}; -use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed}; use rustc_span::hygiene::{LocalExpnId, Transparency}; use rustc_span::symbol::{sym, Ident, MacroRulesNormalizedIdent}; use rustc_span::Span; @@ -528,7 +528,7 @@ fn out_of_bounds_err<'a>( max: usize, span: Span, ty: &str, -) -> DiagnosticBuilder<'a, ErrorGuaranteed> { +) -> DiagnosticBuilder<'a> { let msg = if max == 0 { format!( "meta-variable expression `{ty}` with depth parameter \ diff --git a/compiler/rustc_expand/src/module.rs b/compiler/rustc_expand/src/module.rs index a0dec89d631..cd59ea9092c 100644 --- a/compiler/rustc_expand/src/module.rs +++ b/compiler/rustc_expand/src/module.rs @@ -43,7 +43,7 @@ pub enum ModError<'a> { ModInBlock(Option<Ident>), FileNotFound(Ident, PathBuf, PathBuf), MultipleCandidates(Ident, PathBuf, PathBuf), - ParserError(DiagnosticBuilder<'a, ErrorGuaranteed>), + ParserError(DiagnosticBuilder<'a>), } pub(crate) fn parse_external_mod( diff --git a/compiler/rustc_expand/src/placeholders.rs b/compiler/rustc_expand/src/placeholders.rs index ded0baa9563..2c4187031ca 100644 --- a/compiler/rustc_expand/src/placeholders.rs +++ b/compiler/rustc_expand/src/placeholders.rs @@ -174,7 +174,7 @@ pub fn placeholder( }]), AstFragmentKind::Variants => AstFragment::Variants(smallvec![ast::Variant { attrs: Default::default(), - data: ast::VariantData::Struct(Default::default(), false), + data: ast::VariantData::Struct { fields: Default::default(), recovered: false }, disr_expr: None, id, ident, diff --git a/compiler/rustc_expand/src/proc_macro.rs b/compiler/rustc_expand/src/proc_macro.rs index d08026b9c14..429bfa61450 100644 --- a/compiler/rustc_expand/src/proc_macro.rs +++ b/compiler/rustc_expand/src/proc_macro.rs @@ -156,7 +156,7 @@ impl MultiItemModifier for DeriveProcMacro { } }; - let error_count_before = ecx.sess.diagnostic().err_count(); + let error_count_before = ecx.sess.dcx().err_count(); let mut parser = rustc_parse::stream_to_parser(&ecx.sess.parse_sess, stream, Some("proc-macro derive")); let mut items = vec![]; @@ -179,7 +179,7 @@ impl MultiItemModifier for DeriveProcMacro { } // fail if there have been errors emitted - if ecx.sess.diagnostic().err_count() > error_count_before { + if ecx.sess.dcx().err_count() > error_count_before { ecx.sess.emit_err(errors::ProcMacroDeriveTokens { span }); } diff --git a/compiler/rustc_expand/src/proc_macro_server.rs b/compiler/rustc_expand/src/proc_macro_server.rs index 4f439c15fbb..5eb6aed7253 100644 --- a/compiler/rustc_expand/src/proc_macro_server.rs +++ b/compiler/rustc_expand/src/proc_macro_server.rs @@ -499,14 +499,9 @@ impl server::FreeFunctions for Rustc<'_, '_> { rustc_errors::Diagnostic::new(diagnostic.level.to_internal(), diagnostic.message); diag.set_span(MultiSpan::from_spans(diagnostic.spans)); for child in diagnostic.children { - diag.sub( - child.level.to_internal(), - child.message, - MultiSpan::from_spans(child.spans), - None, - ); + diag.sub(child.level.to_internal(), child.message, MultiSpan::from_spans(child.spans)); } - self.sess().span_diagnostic.emit_diagnostic(diag); + self.sess().dcx.emit_diagnostic(diag); } } diff --git a/compiler/rustc_expand/src/tests.rs b/compiler/rustc_expand/src/tests.rs index b4724b0e9d0..0b859841828 100644 --- a/compiler/rustc_expand/src/tests.rs +++ b/compiler/rustc_expand/src/tests.rs @@ -8,7 +8,7 @@ use rustc_span::{BytePos, Span}; use rustc_data_structures::sync::Lrc; use rustc_errors::emitter::EmitterWriter; -use rustc_errors::{Handler, MultiSpan, PResult}; +use rustc_errors::{DiagCtxt, MultiSpan, PResult}; use termcolor::WriteColor; use std::io; @@ -23,7 +23,7 @@ fn string_to_parser(ps: &ParseSess, source_str: String) -> Parser<'_> { new_parser_from_source_str(ps, PathBuf::from("bogofile").into(), source_str) } -fn create_test_handler() -> (Handler, Lrc<SourceMap>, Arc<Mutex<Vec<u8>>>) { +fn create_test_handler() -> (DiagCtxt, Lrc<SourceMap>, Arc<Mutex<Vec<u8>>>) { let output = Arc::new(Mutex::new(Vec::new())); let source_map = Lrc::new(SourceMap::new(FilePathMapping::empty())); let fallback_bundle = rustc_errors::fallback_fluent_bundle( @@ -33,8 +33,8 @@ fn create_test_handler() -> (Handler, Lrc<SourceMap>, Arc<Mutex<Vec<u8>>>) { let emitter = EmitterWriter::new(Box::new(Shared { data: output.clone() }), fallback_bundle) .sm(Some(source_map.clone())) .diagnostic_width(Some(140)); - let handler = Handler::with_emitter(Box::new(emitter)); - (handler, source_map, output) + let dcx = DiagCtxt::with_emitter(Box::new(emitter)); + (dcx, source_map, output) } /// Returns the result of parsing the given string via the given callback. @@ -46,7 +46,7 @@ where { let mut p = string_to_parser(&ps, s); let x = f(&mut p).unwrap(); - p.sess.span_diagnostic.abort_if_errors(); + p.sess.dcx.abort_if_errors(); x } @@ -57,7 +57,7 @@ where F: for<'a> FnOnce(&mut Parser<'a>) -> PResult<'a, T>, { let (handler, source_map, output) = create_test_handler(); - let ps = ParseSess::with_span_handler(handler, source_map); + let ps = ParseSess::with_dcx(handler, source_map); let mut p = string_to_parser(&ps, source_str.to_string()); let result = f(&mut p); assert!(result.is_ok()); diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs index 4993112089a..aa0db9891a5 100644 --- a/compiler/rustc_feature/src/accepted.rs +++ b/compiler/rustc_feature/src/accepted.rs @@ -77,7 +77,7 @@ declare_features! ( /// Allows empty structs and enum variants with braces. (accepted, braced_empty_structs, "1.8.0", Some(29720)), /// Allows `c"foo"` literals. - (accepted, c_str_literals, "CURRENT_RUSTC_VERSION", Some(105723)), + (accepted, c_str_literals, "1.76.0", Some(105723)), /// Allows `#[cfg_attr(predicate, multiple, attributes, here)]`. (accepted, cfg_attr_multi, "1.33.0", Some(54881)), /// Allows the use of `#[cfg(doctest)]`, set when rustdoc is collecting doctests. @@ -341,7 +341,7 @@ declare_features! ( (accepted, track_caller, "1.46.0", Some(47809)), /// Allows dyn upcasting trait objects via supertraits. /// Dyn upcasting is casting, e.g., `dyn Foo -> dyn Bar` where `Foo: Bar`. - (accepted, trait_upcasting, "CURRENT_RUSTC_VERSION", Some(65991)), + (accepted, trait_upcasting, "1.76.0", Some(65991)), /// Allows #[repr(transparent)] on univariant enums (RFC 2645). (accepted, transparent_enums, "1.42.0", Some(60405)), /// Allows indexing tuples. diff --git a/compiler/rustc_feature/src/removed.rs b/compiler/rustc_feature/src/removed.rs index 0d9b8b344cf..67ee53d8ae5 100644 --- a/compiler/rustc_feature/src/removed.rs +++ b/compiler/rustc_feature/src/removed.rs @@ -177,7 +177,7 @@ declare_features! ( /// Allows using the `#[register_attr]` attribute. (removed, register_attr, "1.65.0", Some(66080), Some("removed in favor of `#![register_tool]`")), - (removed, rust_2018_preview, "CURRENT_RUSTC_VERSION", None, + (removed, rust_2018_preview, "1.76.0", None, Some("2018 Edition preview is no longer relevant")), /// Allows using the macros: /// + `__diagnostic_used` diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs index bbf5e031175..60586f54fd5 100644 --- a/compiler/rustc_feature/src/unstable.rs +++ b/compiler/rustc_feature/src/unstable.rs @@ -204,7 +204,7 @@ declare_features! ( /// Allows using `#[lang = ".."]` attribute for linking items to special compiler logic. (internal, lang_items, "1.0.0", None), /// Changes `impl Trait` to capture all lifetimes in scope. - (unstable, lifetime_capture_rules_2024, "CURRENT_RUSTC_VERSION", None), + (unstable, lifetime_capture_rules_2024, "1.76.0", None), /// Allows `#[link(..., cfg(..))]`; perma-unstable per #37406 (unstable, link_cfg, "1.14.0", None), /// Allows the `multiple_supertrait_upcastable` lint. @@ -357,6 +357,8 @@ declare_features! ( (unstable, async_closure, "1.37.0", Some(62290)), /// Allows `#[track_caller]` on async functions. (unstable, async_fn_track_caller, "1.73.0", Some(110011)), + /// Allows `for await` loops. + (unstable, async_for_loop, "CURRENT_RUSTC_VERSION", Some(118898)), /// Allows builtin # foo() syntax (unstable, builtin_syntax, "1.71.0", Some(110680)), /// Treat `extern "C"` function as nounwind. @@ -468,7 +470,7 @@ declare_features! ( /// Allows using `#[repr(align(...))]` on function items (unstable, fn_align, "1.53.0", Some(82232)), /// Support delegating implementation of functions to other already implemented functions. - (incomplete, fn_delegation, "CURRENT_RUSTC_VERSION", Some(118212)), + (incomplete, fn_delegation, "1.76.0", Some(118212)), /// Allows defining gen blocks and `gen fn`. (unstable, gen_blocks, "1.75.0", Some(117078)), /// Infer generic args for both consts and types. @@ -505,7 +507,7 @@ declare_features! ( (unstable, let_chains, "1.37.0", Some(53667)), /// Allows using `#[link(kind = "link-arg", name = "...")]` /// to pass custom arguments to the linker. - (unstable, link_arg_attribute, "CURRENT_RUSTC_VERSION", Some(99427)), + (unstable, link_arg_attribute, "1.76.0", Some(99427)), /// Allows using `reason` in lint attributes and the `#[expect(lint)]` lint check. (unstable, lint_reasons, "1.31.0", Some(54503)), /// Give access to additional metadata about declarative macro meta-variables. @@ -527,7 +529,7 @@ declare_features! ( /// Allow negative trait implementations. (unstable, negative_impls, "1.44.0", Some(68318)), /// Allows the `!` pattern. - (incomplete, never_patterns, "CURRENT_RUSTC_VERSION", Some(118155)), + (incomplete, never_patterns, "1.76.0", Some(118155)), /// Allows the `!` type. Does not imply 'exhaustive_patterns' (below) any more. (unstable, never_type, "1.13.0", Some(35121)), /// Allows diverging expressions to fall back to `!` rather than `()`. diff --git a/compiler/rustc_hir/src/def.rs b/compiler/rustc_hir/src/def.rs index 258d6710bc5..81ec7ddb629 100644 --- a/compiler/rustc_hir/src/def.rs +++ b/compiler/rustc_hir/src/def.rs @@ -3,8 +3,8 @@ use crate::hir; use rustc_ast as ast; use rustc_ast::NodeId; -use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::stable_hasher::ToStableHashKey; +use rustc_data_structures::unord::UnordMap; use rustc_macros::HashStable_Generic; use rustc_span::def_id::{DefId, LocalDefId}; use rustc_span::hygiene::MacroKind; @@ -603,7 +603,7 @@ impl CtorKind { match *vdata { ast::VariantData::Tuple(_, node_id) => Some((CtorKind::Fn, node_id)), ast::VariantData::Unit(node_id) => Some((CtorKind::Const, node_id)), - ast::VariantData::Struct(..) => None, + ast::VariantData::Struct { .. } => None, } } } @@ -806,4 +806,4 @@ pub enum LifetimeRes { ElidedAnchor { start: NodeId, end: NodeId }, } -pub type DocLinkResMap = FxHashMap<(Symbol, Namespace), Option<Res<NodeId>>>; +pub type DocLinkResMap = UnordMap<(Symbol, Namespace), Option<Res<NodeId>>>; diff --git a/compiler/rustc_hir/src/definitions.rs b/compiler/rustc_hir/src/definitions.rs index d222325475d..2ab9a6ef32c 100644 --- a/compiler/rustc_hir/src/definitions.rs +++ b/compiler/rustc_hir/src/definitions.rs @@ -8,8 +8,8 @@ pub use crate::def_id::DefPathHash; use crate::def_id::{CrateNum, DefIndex, LocalDefId, StableCrateId, CRATE_DEF_INDEX, LOCAL_CRATE}; use crate::def_path_hash_map::DefPathHashMap; -use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::stable_hasher::{Hash64, StableHasher}; +use rustc_data_structures::unord::UnordMap; use rustc_index::IndexVec; use rustc_span::symbol::{kw, sym, Symbol}; @@ -95,7 +95,7 @@ impl DefPathTable { #[derive(Debug)] pub struct Definitions { table: DefPathTable, - next_disambiguator: FxHashMap<(LocalDefId, DefPathData), u32>, + next_disambiguator: UnordMap<(LocalDefId, DefPathData), u32>, /// The [StableCrateId] of the local crate. stable_crate_id: StableCrateId, diff --git a/compiler/rustc_hir/src/diagnostic_items.rs b/compiler/rustc_hir/src/diagnostic_items.rs index 243014b0027..d4d09f9a4e0 100644 --- a/compiler/rustc_hir/src/diagnostic_items.rs +++ b/compiler/rustc_hir/src/diagnostic_items.rs @@ -1,12 +1,13 @@ use crate::def_id::DefId; -use rustc_data_structures::fx::FxHashMap; +use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_span::def_id::DefIdMap; use rustc_span::Symbol; #[derive(Debug, Default)] pub struct DiagnosticItems { - pub id_to_name: FxHashMap<DefId, Symbol>, - pub name_to_id: FxHashMap<Symbol, DefId>, + pub id_to_name: DefIdMap<Symbol>, + pub name_to_id: FxIndexMap<Symbol, DefId>, } impl<CTX: crate::HashStableContext> HashStable<CTX> for DiagnosticItems { diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index 760945554f0..452f5d0b7ac 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -1,6 +1,6 @@ use crate::def::{CtorKind, DefKind, Res}; -use crate::def_id::DefId; -pub(crate) use crate::hir_id::{HirId, ItemLocalId, OwnerId}; +use crate::def_id::{DefId, LocalDefIdMap}; +pub(crate) use crate::hir_id::{HirId, ItemLocalId, ItemLocalMap, OwnerId}; use crate::intravisit::FnKind; use crate::LangItem; @@ -11,7 +11,6 @@ pub use rustc_ast::{BinOp, BinOpKind, BindingAnnotation, BorrowKind, ByRef, Capt pub use rustc_ast::{ImplPolarity, IsAuto, Movability, Mutability, UnOp}; use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece}; use rustc_data_structures::fingerprint::Fingerprint; -use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::sorted_map::SortedMap; use rustc_index::IndexVec; use rustc_macros::HashStable_Generic; @@ -418,8 +417,7 @@ pub enum GenericArgsParentheses { ParenSugar, } -/// A modifier on a bound, currently this is only used for `?Sized`, where the -/// modifier is `Maybe`. Negative bounds should also be handled here. +/// A modifier on a trait bound. #[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, HashStable_Generic)] pub enum TraitBoundModifier { None, @@ -874,12 +872,12 @@ pub struct OwnerInfo<'hir> { /// Contents of the HIR. pub nodes: OwnerNodes<'hir>, /// Map from each nested owner to its parent's local id. - pub parenting: FxHashMap<LocalDefId, ItemLocalId>, + pub parenting: LocalDefIdMap<ItemLocalId>, /// Collected attributes of the HIR nodes. pub attrs: AttributeMap<'hir>, /// Map indicating what traits are in scope for places where this /// is relevant; generated by resolve. - pub trait_map: FxHashMap<ItemLocalId, Box<[TraitCandidate]>>, + pub trait_map: ItemLocalMap<Box<[TraitCandidate]>>, } impl<'tcx> OwnerInfo<'tcx> { @@ -1353,15 +1351,8 @@ impl<'hir> Body<'hir> { /// The type of source expression that caused this coroutine to be created. #[derive(Clone, PartialEq, Eq, Debug, Copy, Hash, HashStable_Generic, Encodable, Decodable)] pub enum CoroutineKind { - /// An explicit `async` block or the body of an `async` function. - Async(CoroutineSource), - - /// An explicit `gen` block or the body of a `gen` function. - Gen(CoroutineSource), - - /// An explicit `async gen` block or the body of an `async gen` function, - /// which is able to both `yield` and `.await`. - AsyncGen(CoroutineSource), + /// A coroutine that comes from a desugaring. + Desugared(CoroutineDesugaring, CoroutineSource), /// A coroutine literal created via a `yield` inside a closure. Coroutine, @@ -1370,31 +1361,11 @@ pub enum CoroutineKind { impl fmt::Display for CoroutineKind { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self { - CoroutineKind::Async(k) => { - if f.alternate() { - f.write_str("`async` ")?; - } else { - f.write_str("async ")? - } + CoroutineKind::Desugared(d, k) => { + d.fmt(f)?; k.fmt(f) } CoroutineKind::Coroutine => f.write_str("coroutine"), - CoroutineKind::Gen(k) => { - if f.alternate() { - f.write_str("`gen` ")?; - } else { - f.write_str("gen ")? - } - k.fmt(f) - } - CoroutineKind::AsyncGen(k) => { - if f.alternate() { - f.write_str("`async gen` ")?; - } else { - f.write_str("async gen ")? - } - k.fmt(f) - } } } } @@ -1427,6 +1398,49 @@ impl fmt::Display for CoroutineSource { } } +#[derive(Clone, PartialEq, Eq, Debug, Copy, Hash, HashStable_Generic, Encodable, Decodable)] +pub enum CoroutineDesugaring { + /// An explicit `async` block or the body of an `async` function. + Async, + + /// An explicit `gen` block or the body of a `gen` function. + Gen, + + /// An explicit `async gen` block or the body of an `async gen` function, + /// which is able to both `yield` and `.await`. + AsyncGen, +} + +impl fmt::Display for CoroutineDesugaring { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + match self { + CoroutineDesugaring::Async => { + if f.alternate() { + f.write_str("`async` ")?; + } else { + f.write_str("async ")? + } + } + CoroutineDesugaring::Gen => { + if f.alternate() { + f.write_str("`gen` ")?; + } else { + f.write_str("gen ")? + } + } + CoroutineDesugaring::AsyncGen => { + if f.alternate() { + f.write_str("`async gen` ")?; + } else { + f.write_str("async gen ")? + } + } + } + + Ok(()) + } +} + #[derive(Copy, Clone, Debug)] pub enum BodyOwnerKind { /// Functions and methods. @@ -2849,7 +2863,11 @@ pub enum VariantData<'hir> { /// A struct variant. /// /// E.g., `Bar { .. }` as in `enum Foo { Bar { .. } }`. - Struct(&'hir [FieldDef<'hir>], /* recovered */ bool), + Struct { + fields: &'hir [FieldDef<'hir>], + // FIXME: investigate making this a `Option<ErrorGuaranteed>` + recovered: bool, + }, /// A tuple variant. /// /// E.g., `Bar(..)` as in `enum Foo { Bar(..) }`. @@ -2864,7 +2882,7 @@ impl<'hir> VariantData<'hir> { /// Return the fields of this variant. pub fn fields(&self) -> &'hir [FieldDef<'hir>] { match *self { - VariantData::Struct(ref fields, ..) | VariantData::Tuple(ref fields, ..) => fields, + VariantData::Struct { fields, .. } | VariantData::Tuple(fields, ..) => fields, _ => &[], } } @@ -2873,7 +2891,7 @@ impl<'hir> VariantData<'hir> { match *self { VariantData::Tuple(_, hir_id, def_id) => Some((CtorKind::Fn, hir_id, def_id)), VariantData::Unit(hir_id, def_id) => Some((CtorKind::Const, hir_id, def_id)), - VariantData::Struct(..) => None, + VariantData::Struct { .. } => None, } } diff --git a/compiler/rustc_hir/src/lang_items.rs b/compiler/rustc_hir/src/lang_items.rs index b0b53bb7478..3f3b57ba94f 100644 --- a/compiler/rustc_hir/src/lang_items.rs +++ b/compiler/rustc_hir/src/lang_items.rs @@ -307,6 +307,9 @@ language_item_table! { Context, sym::Context, context, Target::Struct, GenericRequirement::None; FuturePoll, sym::poll, future_poll_fn, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::None; + AsyncIteratorPollNext, sym::async_iterator_poll_next, async_iterator_poll_next, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::Exact(0); + IntoAsyncIterIntoIter, sym::into_async_iter_into_iter, into_async_iter_into_iter, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::Exact(0); + Option, sym::Option, option_type, Target::Enum, GenericRequirement::None; OptionSome, sym::Some, option_some_variant, Target::Variant, GenericRequirement::None; OptionNone, sym::None, option_none_variant, Target::Variant, GenericRequirement::None; diff --git a/compiler/rustc_hir/src/pat_util.rs b/compiler/rustc_hir/src/pat_util.rs index 838c123f83c..e6050327186 100644 --- a/compiler/rustc_hir/src/pat_util.rs +++ b/compiler/rustc_hir/src/pat_util.rs @@ -1,7 +1,6 @@ use crate::def::{CtorOf, DefKind, Res}; -use crate::def_id::DefId; +use crate::def_id::{DefId, DefIdSet}; use crate::hir::{self, BindingAnnotation, ByRef, HirId, PatKind}; -use rustc_data_structures::fx::FxHashSet; use rustc_span::symbol::Ident; use rustc_span::Span; @@ -114,9 +113,9 @@ impl hir::Pat<'_> { } _ => true, }); - // We remove duplicates by inserting into a `FxHashSet` to avoid re-ordering + // We remove duplicates by inserting into a hash set to avoid re-ordering // the bounds - let mut duplicates = FxHashSet::default(); + let mut duplicates = DefIdSet::default(); variants.retain(|def_id| duplicates.insert(*def_id)); variants } diff --git a/compiler/rustc_hir_analysis/src/astconv/generics.rs b/compiler/rustc_hir_analysis/src/astconv/generics.rs index be73c027fdc..b495b00ec70 100644 --- a/compiler/rustc_hir_analysis/src/astconv/generics.rs +++ b/compiler/rustc_hir_analysis/src/astconv/generics.rs @@ -262,7 +262,7 @@ pub fn create_args_for_parent_generic_args<'tcx, 'a>( // impl const PartialEq for () {} // ``` // - // Since this is a const impl, we need to insert `<false>` at the end of + // Since this is a const impl, we need to insert a host arg at the end of // `PartialEq`'s generics, but this errors since `Rhs` isn't specified. // To work around this, we infer all arguments until we reach the host param. args.push(ctx.inferred_kind(Some(&args), param, infer_args)); diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs index 6f8e80172dd..ab281ef929d 100644 --- a/compiler/rustc_hir_analysis/src/astconv/mod.rs +++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs @@ -378,7 +378,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { assert!(self_ty.is_none()); } - let arg_count = check_generic_arg_count( + let mut arg_count = check_generic_arg_count( tcx, span, def_id, @@ -560,6 +560,14 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { inferred_params: vec![], infer_args, }; + if let ty::BoundConstness::ConstIfConst = constness + && generics.has_self + && !tcx.has_attr(def_id, sym::const_trait) + { + let e = tcx.sess.emit_err(crate::errors::ConstBoundForNonConstTrait { span }); + arg_count.correct = + Err(GenericArgCountMismatch { reported: Some(e), invalid_args: vec![] }); + } let args = create_args_for_parent_generic_args( tcx, def_id, @@ -570,13 +578,6 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { &mut args_ctx, ); - if let ty::BoundConstness::ConstIfConst = constness - && generics.has_self - && !tcx.has_attr(def_id, sym::const_trait) - { - tcx.sess.emit_err(crate::errors::ConstBoundForNonConstTrait { span }); - } - (args, arg_count) } @@ -2686,7 +2687,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { &self, constrained_regions: FxHashSet<ty::BoundRegionKind>, referenced_regions: FxHashSet<ty::BoundRegionKind>, - generate_err: impl Fn(&str) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>, + generate_err: impl Fn(&str) -> DiagnosticBuilder<'tcx>, ) { for br in referenced_regions.difference(&constrained_regions) { let br_name = match *br { diff --git a/compiler/rustc_hir_analysis/src/check/entry.rs b/compiler/rustc_hir_analysis/src/check/entry.rs index 8f194ae88ab..a82853a1303 100644 --- a/compiler/rustc_hir_analysis/src/check/entry.rs +++ b/compiler/rustc_hir_analysis/src/check/entry.rs @@ -92,24 +92,6 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) { let mut error = false; let main_diagnostics_def_id = main_fn_diagnostics_def_id(tcx, main_def_id, main_span); - let main_fn_generics = tcx.generics_of(main_def_id); - let main_fn_predicates = tcx.predicates_of(main_def_id); - if main_fn_generics.count() != 0 || !main_fnsig.bound_vars().is_empty() { - let generics_param_span = main_fn_generics_params_span(tcx, main_def_id); - tcx.sess.emit_err(errors::MainFunctionGenericParameters { - span: generics_param_span.unwrap_or(main_span), - label_span: generics_param_span, - }); - error = true; - } else if !main_fn_predicates.predicates.is_empty() { - // generics may bring in implicit predicates, so we skip this check if generics is present. - let generics_where_clauses_span = main_fn_where_clauses_span(tcx, main_def_id); - tcx.sess.emit_err(errors::WhereClauseOnMain { - span: generics_where_clauses_span.unwrap_or(main_span), - generics_span: generics_where_clauses_span, - }); - error = true; - } let main_asyncness = tcx.asyncness(main_def_id); if main_asyncness.is_async() { @@ -142,11 +124,10 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) { if let Some(term_did) = tcx.lang_items().termination() { let return_ty = main_fnsig.output(); let return_ty_span = main_fn_return_type_span(tcx, main_def_id).unwrap_or(main_span); - if !return_ty.bound_vars().is_empty() { + let Some(return_ty) = return_ty.no_bound_vars() else { tcx.sess.emit_err(errors::MainFunctionReturnTypeGeneric { span: return_ty_span }); - error = true; - } - let return_ty = return_ty.skip_binder(); + return; + }; let infcx = tcx.infer_ctxt().build(); let cause = traits::ObligationCause::new( return_ty_span, @@ -180,7 +161,7 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) { Abi::Rust, )); - check_function_signature( + if check_function_signature( tcx, ObligationCause::new( main_span, @@ -189,7 +170,28 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) { ), main_def_id, expected_sig, - ); + ) + .is_err() + { + return; + } + + let main_fn_generics = tcx.generics_of(main_def_id); + let main_fn_predicates = tcx.predicates_of(main_def_id); + if main_fn_generics.count() != 0 || !main_fnsig.bound_vars().is_empty() { + let generics_param_span = main_fn_generics_params_span(tcx, main_def_id); + tcx.sess.emit_err(errors::MainFunctionGenericParameters { + span: generics_param_span.unwrap_or(main_span), + label_span: generics_param_span, + }); + } else if !main_fn_predicates.predicates.is_empty() { + // generics may bring in implicit predicates, so we skip this check if generics is present. + let generics_where_clauses_span = main_fn_where_clauses_span(tcx, main_def_id); + tcx.sess.emit_err(errors::WhereClauseOnMain { + span: generics_where_clauses_span.unwrap_or(main_span), + generics_span: generics_where_clauses_span, + }); + } } fn check_start_fn_ty(tcx: TyCtxt<'_>, start_def_id: DefId) { @@ -255,7 +257,7 @@ fn check_start_fn_ty(tcx: TyCtxt<'_>, start_def_id: DefId) { Abi::Rust, )); - check_function_signature( + let _ = check_function_signature( tcx, ObligationCause::new( start_span, diff --git a/compiler/rustc_hir_analysis/src/check/intrinsic.rs b/compiler/rustc_hir_analysis/src/check/intrinsic.rs index 33337190562..126bab68ae3 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsic.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsic.rs @@ -55,7 +55,7 @@ fn equate_intrinsic_type<'tcx>( && gen_count_ok(own_counts.consts, n_cts, "const") { let it_def_id = it.owner_id.def_id; - check_function_signature( + let _ = check_function_signature( tcx, ObligationCause::new(it.span, it_def_id, ObligationCauseCode::IntrinsicType), it_def_id.into(), diff --git a/compiler/rustc_hir_analysis/src/check/mod.rs b/compiler/rustc_hir_analysis/src/check/mod.rs index df17879a967..e4904a0437b 100644 --- a/compiler/rustc_hir_analysis/src/check/mod.rs +++ b/compiler/rustc_hir_analysis/src/check/mod.rs @@ -77,6 +77,7 @@ use std::num::NonZeroU32; use check::check_mod_item_types; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; +use rustc_errors::ErrorGuaranteed; use rustc_errors::{pluralize, struct_span_err, Diagnostic, DiagnosticBuilder}; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_hir::intravisit::Visitor; @@ -570,7 +571,26 @@ pub fn check_function_signature<'tcx>( mut cause: ObligationCause<'tcx>, fn_id: DefId, expected_sig: ty::PolyFnSig<'tcx>, -) { +) -> Result<(), ErrorGuaranteed> { + fn extract_span_for_error_reporting<'tcx>( + tcx: TyCtxt<'tcx>, + err: TypeError<'_>, + cause: &ObligationCause<'tcx>, + fn_id: LocalDefId, + ) -> rustc_span::Span { + let mut args = { + let node = tcx.hir().expect_owner(fn_id); + let decl = node.fn_decl().unwrap_or_else(|| bug!("expected fn decl, found {:?}", node)); + decl.inputs.iter().map(|t| t.span).chain(std::iter::once(decl.output.span())) + }; + + match err { + TypeError::ArgumentMutability(i) + | TypeError::ArgumentSorts(ExpectedFound { .. }, i) => args.nth(i).unwrap(), + _ => cause.span(), + } + } + let local_id = fn_id.as_local().unwrap_or(CRATE_DEF_ID); let param_env = ty::ParamEnv::empty(); @@ -587,8 +607,7 @@ pub fn check_function_signature<'tcx>( Ok(()) => { let errors = ocx.select_all_or_error(); if !errors.is_empty() { - infcx.err_ctxt().report_fulfillment_errors(errors); - return; + return Err(infcx.err_ctxt().report_fulfillment_errors(errors)); } } Err(err) => { @@ -610,30 +629,14 @@ pub fn check_function_signature<'tcx>( false, false, ); - diag.emit(); - return; + return Err(diag.emit()); } } let outlives_env = OutlivesEnvironment::new(param_env); - let _ = ocx.resolve_regions_and_report_errors(local_id, &outlives_env); - - fn extract_span_for_error_reporting<'tcx>( - tcx: TyCtxt<'tcx>, - err: TypeError<'_>, - cause: &ObligationCause<'tcx>, - fn_id: LocalDefId, - ) -> rustc_span::Span { - let mut args = { - let node = tcx.hir().expect_owner(fn_id); - let decl = node.fn_decl().unwrap_or_else(|| bug!("expected fn decl, found {:?}", node)); - decl.inputs.iter().map(|t| t.span).chain(std::iter::once(decl.output.span())) - }; - - match err { - TypeError::ArgumentMutability(i) - | TypeError::ArgumentSorts(ExpectedFound { .. }, i) => args.nth(i).unwrap(), - _ => cause.span(), - } + if let Err(e) = ocx.resolve_regions_and_report_errors(local_id, &outlives_env) { + return Err(e); } + + Ok(()) } diff --git a/compiler/rustc_hir_analysis/src/check/region.rs b/compiler/rustc_hir_analysis/src/check/region.rs index 37b308f9f88..34d3f20d0cf 100644 --- a/compiler/rustc_hir_analysis/src/check/region.rs +++ b/compiler/rustc_hir_analysis/src/check/region.rs @@ -179,10 +179,10 @@ fn resolve_block<'tcx>(visitor: &mut RegionResolutionVisitor<'tcx>, blk: &'tcx h fn resolve_arm<'tcx>(visitor: &mut RegionResolutionVisitor<'tcx>, arm: &'tcx hir::Arm<'tcx>) { let prev_cx = visitor.cx; - visitor.enter_scope(Scope { id: arm.hir_id.local_id, data: ScopeData::Node }); - visitor.cx.var_parent = visitor.cx.parent; + visitor.terminating_scopes.insert(arm.hir_id.local_id); - visitor.terminating_scopes.insert(arm.body.hir_id.local_id); + visitor.enter_node_scope_with_dtor(arm.hir_id.local_id); + visitor.cx.var_parent = visitor.cx.parent; if let Some(hir::Guard::If(expr)) = arm.guard { visitor.terminating_scopes.insert(expr.hir_id.local_id); diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index 64026cdfff4..cc34dbfd9b9 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -1607,15 +1607,10 @@ fn check_method_receiver<'tcx>( } fn e0307(tcx: TyCtxt<'_>, span: Span, receiver_ty: Ty<'_>) -> ErrorGuaranteed { - struct_span_err!( - tcx.sess.diagnostic(), - span, - E0307, - "invalid `self` parameter type: {receiver_ty}" - ) - .note("type of `self` must be `Self` or a type that dereferences to it") - .help(HELP_FOR_SELF_TYPE) - .emit() + struct_span_err!(tcx.sess.dcx(), span, E0307, "invalid `self` parameter type: {receiver_ty}") + .note("type of `self` must be `Self` or a type that dereferences to it") + .help(HELP_FOR_SELF_TYPE) + .emit() } /// Returns whether `receiver_ty` would be considered a valid receiver type for `self_ty`. If @@ -1917,11 +1912,7 @@ fn check_mod_type_wf(tcx: TyCtxt<'_>, module: LocalModDefId) -> Result<(), Error res.and(items.par_foreign_items(|item| tcx.ensure().check_well_formed(item.owner_id))) } -fn error_392( - tcx: TyCtxt<'_>, - span: Span, - param_name: Symbol, -) -> DiagnosticBuilder<'_, ErrorGuaranteed> { +fn error_392(tcx: TyCtxt<'_>, span: Span, param_name: Symbol) -> DiagnosticBuilder<'_> { let mut err = struct_span_err!(tcx.sess, span, E0392, "parameter `{param_name}` is never used"); err.span_label(span, "unused parameter"); err diff --git a/compiler/rustc_hir_analysis/src/coherence/orphan.rs b/compiler/rustc_hir_analysis/src/coherence/orphan.rs index 88128d22a3d..d33cfe4ad4d 100644 --- a/compiler/rustc_hir_analysis/src/coherence/orphan.rs +++ b/compiler/rustc_hir_analysis/src/coherence/orphan.rs @@ -453,7 +453,7 @@ fn lint_auto_trait_impl<'tcx>( impl_def_id: LocalDefId, ) { if trait_ref.args.len() != 1 { - tcx.sess.diagnostic().span_delayed_bug( + tcx.sess.dcx().span_delayed_bug( tcx.def_span(impl_def_id), "auto traits cannot have generic parameters", ); diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index d176665e4c0..d43b4adfe39 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -181,7 +181,7 @@ pub(crate) fn placeholder_type_error_diag<'tcx>( suggest: bool, hir_ty: Option<&hir::Ty<'_>>, kind: &'static str, -) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { +) -> DiagnosticBuilder<'tcx> { if placeholder_types.is_empty() { return bad_placeholder(tcx, additional_spans, kind); } @@ -333,7 +333,7 @@ fn bad_placeholder<'tcx>( tcx: TyCtxt<'tcx>, mut spans: Vec<Span>, kind: &'static str, -) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { +) -> DiagnosticBuilder<'tcx> { let kind = if kind.ends_with('s') { format!("{kind}es") } else { format!("{kind}s") }; spans.sort(); @@ -672,7 +672,7 @@ fn convert_trait_item(tcx: TyCtxt<'_>, trait_item_id: hir::TraitItemId) { hir::TraitItemKind::Const(ty, body_id) => { tcx.ensure().type_of(def_id); - if !tcx.sess.diagnostic().has_stashed_diagnostic(ty.span, StashKey::ItemNoType) + if !tcx.sess.dcx().has_stashed_diagnostic(ty.span, StashKey::ItemNoType) && !(is_suggestable_infer_ty(ty) && body_id.is_some()) { // Account for `const C: _;`. @@ -814,7 +814,7 @@ fn convert_variant( }) .collect(); let recovered = match def { - hir::VariantData::Struct(_, r) => *r, + hir::VariantData::Struct { recovered, .. } => *recovered, _ => false, }; ty::VariantDef::new( diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs index 174217d3b70..19e7fe388aa 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs @@ -481,7 +481,7 @@ pub(super) fn type_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<Ty }, Node::Ctor(def) | Node::Variant(Variant { data: def, .. }) => match def { - VariantData::Unit(..) | VariantData::Struct(..) => { + VariantData::Unit(..) | VariantData::Struct { .. } => { tcx.type_of(tcx.hir().get_parent_item(hir_id)).instantiate_identity() } VariantData::Tuple(..) => { @@ -574,7 +574,7 @@ fn infer_placeholder_type<'a>( // then the user may have written e.g. `const A = 42;`. // In this case, the parser has stashed a diagnostic for // us to improve in typeck so we do that now. - match tcx.sess.diagnostic().steal_diagnostic(span, StashKey::ItemNoType) { + match tcx.sess.dcx().steal_diagnostic(span, StashKey::ItemNoType) { Some(mut err) => { if !ty.references_error() { // Only suggest adding `:` if it was missing (and suggested by parsing diagnostic) diff --git a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs index bf0d9d4856a..3785b61f2f7 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs @@ -278,6 +278,10 @@ pub(super) fn find_opaque_ty_constraints_for_rpit<'tcx>( let mir_opaque_ty = tcx.mir_borrowck(owner_def_id).concrete_opaque_types.get(&def_id).copied(); if let Some(mir_opaque_ty) = mir_opaque_ty { + if mir_opaque_ty.references_error() { + return mir_opaque_ty.ty; + } + let scope = tcx.local_def_id_to_hir_id(owner_def_id); debug!(?scope); let mut locator = RpitConstraintChecker { def_id, tcx, found: mir_opaque_ty }; diff --git a/compiler/rustc_hir_analysis/src/errors.rs b/compiler/rustc_hir_analysis/src/errors.rs index a4772293697..41f30057902 100644 --- a/compiler/rustc_hir_analysis/src/errors.rs +++ b/compiler/rustc_hir_analysis/src/errors.rs @@ -2,8 +2,8 @@ use crate::fluent_generated as fluent; use rustc_errors::{ - error_code, Applicability, DiagnosticBuilder, ErrorGuaranteed, Handler, IntoDiagnostic, - MultiSpan, + error_code, Applicability, DiagCtxt, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, + Level, MultiSpan, }; use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; use rustc_middle::ty::Ty; @@ -315,14 +315,12 @@ pub struct MissingTypeParams { } // Manual implementation of `IntoDiagnostic` to be able to call `span_to_snippet`. -impl<'a> IntoDiagnostic<'a> for MissingTypeParams { +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for MissingTypeParams { #[track_caller] - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> { - let mut err = handler.struct_span_err_with_code( - self.span, - fluent::hir_analysis_missing_type_params, - error_code!(E0393), - ); + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { + let mut err = DiagnosticBuilder::new(dcx, level, fluent::hir_analysis_missing_type_params); + err.set_span(self.span); + err.code(error_code!(E0393)); err.set_arg("parameterCount", self.missing_type_params.len()); err.set_arg( "parameters", diff --git a/compiler/rustc_hir_analysis/src/outlives/mod.rs b/compiler/rustc_hir_analysis/src/outlives/mod.rs index 9541e510702..5d2aea7441b 100644 --- a/compiler/rustc_hir_analysis/src/outlives/mod.rs +++ b/compiler/rustc_hir_analysis/src/outlives/mod.rs @@ -4,7 +4,6 @@ use rustc_hir::def_id::LocalDefId; use rustc_middle::query::Providers; use rustc_middle::ty::GenericArgKind; use rustc_middle::ty::{self, CratePredicatesMap, ToPredicate, TyCtxt}; -use rustc_span::symbol::sym; use rustc_span::Span; mod explicit; @@ -49,25 +48,6 @@ fn inferred_outlives_of(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[(ty::Clau let predicates = crate_map.predicates.get(&item_def_id.to_def_id()).copied().unwrap_or(&[]); - if tcx.has_attr(item_def_id, sym::rustc_outlives) { - let mut pred: Vec<String> = predicates - .iter() - .map(|(out_pred, _)| match out_pred.kind().skip_binder() { - ty::ClauseKind::RegionOutlives(p) => p.to_string(), - ty::ClauseKind::TypeOutlives(p) => p.to_string(), - err => bug!("unexpected clause {:?}", err), - }) - .collect(); - pred.sort(); - - let span = tcx.def_span(item_def_id); - let mut err = tcx.sess.struct_span_err(span, "rustc_outlives"); - for p in pred { - err.note(p); - } - err.emit(); - } - debug!("inferred_outlives_of({:?}) = {:?}", item_def_id, predicates); predicates diff --git a/compiler/rustc_hir_analysis/src/outlives/test.rs b/compiler/rustc_hir_analysis/src/outlives/test.rs index 60f8e246ad6..b3cbc312721 100644 --- a/compiler/rustc_hir_analysis/src/outlives/test.rs +++ b/compiler/rustc_hir_analysis/src/outlives/test.rs @@ -1,5 +1,4 @@ -use rustc_errors::struct_span_err; -use rustc_middle::ty::TyCtxt; +use rustc_middle::ty::{self, TyCtxt}; use rustc_span::symbol::sym; pub fn test_inferred_outlives(tcx: TyCtxt<'_>) { @@ -7,15 +6,23 @@ pub fn test_inferred_outlives(tcx: TyCtxt<'_>) { // For unit testing: check for a special "rustc_outlives" // attribute and report an error with various results if found. if tcx.has_attr(id.owner_id, sym::rustc_outlives) { - let inferred_outlives_of = tcx.inferred_outlives_of(id.owner_id); - struct_span_err!( - tcx.sess, - tcx.def_span(id.owner_id), - E0640, - "{:?}", - inferred_outlives_of - ) - .emit(); + let predicates = tcx.inferred_outlives_of(id.owner_id); + let mut pred: Vec<String> = predicates + .iter() + .map(|(out_pred, _)| match out_pred.kind().skip_binder() { + ty::ClauseKind::RegionOutlives(p) => p.to_string(), + ty::ClauseKind::TypeOutlives(p) => p.to_string(), + err => bug!("unexpected clause {:?}", err), + }) + .collect(); + pred.sort(); + + let span = tcx.def_span(id.owner_id); + let mut err = tcx.sess.struct_span_err(span, "rustc_outlives"); + for p in pred { + err.note(p); + } + err.emit(); } } } diff --git a/compiler/rustc_hir_analysis/src/structured_errors.rs b/compiler/rustc_hir_analysis/src/structured_errors.rs index 0b46fce1735..04d04304e70 100644 --- a/compiler/rustc_hir_analysis/src/structured_errors.rs +++ b/compiler/rustc_hir_analysis/src/structured_errors.rs @@ -6,7 +6,7 @@ pub use self::{ missing_cast_for_variadic_arg::*, sized_unsized_cast::*, wrong_number_of_generic_args::*, }; -use rustc_errors::{DiagnosticBuilder, DiagnosticId, ErrorGuaranteed}; +use rustc_errors::{DiagnosticBuilder, DiagnosticId}; use rustc_session::Session; pub trait StructuredDiagnostic<'tcx> { @@ -14,7 +14,7 @@ pub trait StructuredDiagnostic<'tcx> { fn code(&self) -> DiagnosticId; - fn diagnostic(&self) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn diagnostic(&self) -> DiagnosticBuilder<'tcx> { let err = self.diagnostic_common(); if self.session().teach(&self.code()) { @@ -24,19 +24,13 @@ pub trait StructuredDiagnostic<'tcx> { } } - fn diagnostic_common(&self) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; + fn diagnostic_common(&self) -> DiagnosticBuilder<'tcx>; - fn diagnostic_regular( - &self, - err: DiagnosticBuilder<'tcx, ErrorGuaranteed>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn diagnostic_regular(&self, err: DiagnosticBuilder<'tcx>) -> DiagnosticBuilder<'tcx> { err } - fn diagnostic_extended( - &self, - err: DiagnosticBuilder<'tcx, ErrorGuaranteed>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn diagnostic_extended(&self, err: DiagnosticBuilder<'tcx>) -> DiagnosticBuilder<'tcx> { err } } diff --git a/compiler/rustc_hir_analysis/src/structured_errors/missing_cast_for_variadic_arg.rs b/compiler/rustc_hir_analysis/src/structured_errors/missing_cast_for_variadic_arg.rs index c37dff61b72..7cc4982820b 100644 --- a/compiler/rustc_hir_analysis/src/structured_errors/missing_cast_for_variadic_arg.rs +++ b/compiler/rustc_hir_analysis/src/structured_errors/missing_cast_for_variadic_arg.rs @@ -1,5 +1,5 @@ use crate::{errors, structured_errors::StructuredDiagnostic}; -use rustc_errors::{DiagnosticBuilder, DiagnosticId, ErrorGuaranteed}; +use rustc_errors::{DiagnosticBuilder, DiagnosticId}; use rustc_middle::ty::{Ty, TypeVisitableExt}; use rustc_session::Session; use rustc_span::Span; @@ -20,7 +20,7 @@ impl<'tcx> StructuredDiagnostic<'tcx> for MissingCastForVariadicArg<'tcx, '_> { rustc_errors::error_code!(E0617) } - fn diagnostic_common(&self) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn diagnostic_common(&self) -> DiagnosticBuilder<'tcx> { let (sugg_span, replace, help) = if let Ok(snippet) = self.sess.source_map().span_to_snippet(self.span) { (Some(self.span), format!("{} as {}", snippet, self.cast_ty), None) @@ -44,10 +44,7 @@ impl<'tcx> StructuredDiagnostic<'tcx> for MissingCastForVariadicArg<'tcx, '_> { err } - fn diagnostic_extended( - &self, - mut err: DiagnosticBuilder<'tcx, ErrorGuaranteed>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn diagnostic_extended(&self, mut err: DiagnosticBuilder<'tcx>) -> DiagnosticBuilder<'tcx> { err.note(format!( "certain types, like `{}`, must be casted before passing them to a \ variadic function, because of arcane ABI rules dictated by the C \ diff --git a/compiler/rustc_hir_analysis/src/structured_errors/sized_unsized_cast.rs b/compiler/rustc_hir_analysis/src/structured_errors/sized_unsized_cast.rs index 910417abe6e..6ba27f49744 100644 --- a/compiler/rustc_hir_analysis/src/structured_errors/sized_unsized_cast.rs +++ b/compiler/rustc_hir_analysis/src/structured_errors/sized_unsized_cast.rs @@ -1,5 +1,5 @@ use crate::{errors, structured_errors::StructuredDiagnostic}; -use rustc_errors::{DiagnosticBuilder, DiagnosticId, ErrorGuaranteed}; +use rustc_errors::{DiagnosticBuilder, DiagnosticId}; use rustc_middle::ty::{Ty, TypeVisitableExt}; use rustc_session::Session; use rustc_span::Span; @@ -20,7 +20,7 @@ impl<'tcx> StructuredDiagnostic<'tcx> for SizedUnsizedCast<'tcx> { rustc_errors::error_code!(E0607) } - fn diagnostic_common(&self) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn diagnostic_common(&self) -> DiagnosticBuilder<'tcx> { let mut err = self.sess.create_err(errors::CastThinPointerToFatPointer { span: self.span, expr_ty: self.expr_ty, @@ -34,10 +34,7 @@ impl<'tcx> StructuredDiagnostic<'tcx> for SizedUnsizedCast<'tcx> { err } - fn diagnostic_extended( - &self, - mut err: DiagnosticBuilder<'tcx, ErrorGuaranteed>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn diagnostic_extended(&self, mut err: DiagnosticBuilder<'tcx>) -> DiagnosticBuilder<'tcx> { err.help( "Thin pointers are \"simple\" pointers: they are purely a reference to a memory address. diff --git a/compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs b/compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs index fab841e3679..c7818d80dbf 100644 --- a/compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs +++ b/compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs @@ -1,7 +1,6 @@ use crate::structured_errors::StructuredDiagnostic; use rustc_errors::{ - pluralize, Applicability, Diagnostic, DiagnosticBuilder, DiagnosticId, ErrorGuaranteed, - MultiSpan, + pluralize, Applicability, Diagnostic, DiagnosticBuilder, DiagnosticId, MultiSpan, }; use rustc_hir as hir; use rustc_middle::ty::{self as ty, AssocItems, AssocKind, TyCtxt}; @@ -521,7 +520,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> { } } - fn start_diagnostics(&self) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn start_diagnostics(&self) -> DiagnosticBuilder<'tcx> { let span = self.path_segment.ident.span; let msg = self.create_error_message(); @@ -1113,7 +1112,7 @@ impl<'tcx> StructuredDiagnostic<'tcx> for WrongNumberOfGenericArgs<'_, 'tcx> { rustc_errors::error_code!(E0107) } - fn diagnostic_common(&self) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + fn diagnostic_common(&self) -> DiagnosticBuilder<'tcx> { let mut err = self.start_diagnostics(); self.notify(&mut err); diff --git a/compiler/rustc_hir_pretty/src/lib.rs b/compiler/rustc_hir_pretty/src/lib.rs index 21a50b94a37..feaec5ac620 100644 --- a/compiler/rustc_hir_pretty/src/lib.rs +++ b/compiler/rustc_hir_pretty/src/lib.rs @@ -553,17 +553,7 @@ impl<'a> State<'a> { } hir::ItemKind::OpaqueTy(opaque_ty) => { self.print_item_type(item, opaque_ty.generics, |state| { - let mut real_bounds = Vec::with_capacity(opaque_ty.bounds.len()); - for b in opaque_ty.bounds { - if let GenericBound::Trait(ptr, hir::TraitBoundModifier::Maybe) = b { - state.space(); - state.word_space("for ?"); - state.print_trait_ref(&ptr.trait_ref); - } else { - real_bounds.push(b); - } - } - state.print_bounds("= impl", real_bounds); + state.print_bounds("= impl", opaque_ty.bounds) }); } hir::ItemKind::Enum(ref enum_definition, params) => { @@ -625,17 +615,7 @@ impl<'a> State<'a> { self.word_nbsp("trait"); self.print_ident(item.ident); self.print_generic_params(generics.params); - let mut real_bounds = Vec::with_capacity(bounds.len()); - for b in bounds { - if let GenericBound::Trait(ptr, hir::TraitBoundModifier::Maybe) = b { - self.space(); - self.word_space("for ?"); - self.print_trait_ref(&ptr.trait_ref); - } else { - real_bounds.push(b); - } - } - self.print_bounds(":", real_bounds); + self.print_bounds(":", bounds); self.print_where_clause(generics); self.word(" "); self.bopen(); @@ -741,7 +721,7 @@ impl<'a> State<'a> { self.end(); self.end() // close the outer-box } - hir::VariantData::Struct(..) => { + hir::VariantData::Struct { .. } => { self.print_where_clause(generics); self.nbsp(); self.bopen(); diff --git a/compiler/rustc_hir_typeck/src/callee.rs b/compiler/rustc_hir_typeck/src/callee.rs index baca2be06e6..2146effd84f 100644 --- a/compiler/rustc_hir_typeck/src/callee.rs +++ b/compiler/rustc_hir_typeck/src/callee.rs @@ -305,8 +305,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ) = (parent_node, callee_node) { let fn_decl_span = if hir.body(body).coroutine_kind - == Some(hir::CoroutineKind::Async(hir::CoroutineSource::Closure)) - { + == Some(hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Async, + hir::CoroutineSource::Closure, + )) { // Actually need to unwrap one more layer of HIR to get to // the _real_ closure... let async_closure = hir.parent_id(parent_hir_id); @@ -417,7 +419,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { && let Some(mut diag) = self .tcx .sess - .diagnostic() + .dcx() .steal_diagnostic(segment.ident.span, StashKey::CallIntoMethod) { // Try suggesting `foo(a)` -> `a.foo()` if possible. @@ -471,6 +473,65 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } + if let Some(def_id) = def_id + && self.tcx.def_kind(def_id) == hir::def::DefKind::Fn + && self.tcx.is_intrinsic(def_id) + && self.tcx.item_name(def_id) == sym::const_eval_select + { + let fn_sig = self.resolve_vars_if_possible(fn_sig); + for idx in 0..=1 { + let arg_ty = fn_sig.inputs()[idx + 1]; + let span = arg_exprs.get(idx + 1).map_or(call_expr.span, |arg| arg.span); + // Check that second and third argument of `const_eval_select` must be `FnDef`, and additionally that + // the second argument must be `const fn`. The first argument must be a tuple, but this is already expressed + // in the function signature (`F: FnOnce<ARG>`), so I did not bother to add another check here. + // + // This check is here because there is currently no way to express a trait bound for `FnDef` types only. + if let ty::FnDef(def_id, _args) = *arg_ty.kind() { + let fn_once_def_id = + self.tcx.require_lang_item(hir::LangItem::FnOnce, Some(span)); + let fn_once_output_def_id = + self.tcx.require_lang_item(hir::LangItem::FnOnceOutput, Some(span)); + if self.tcx.generics_of(fn_once_def_id).host_effect_index.is_none() { + if idx == 0 && !self.tcx.is_const_fn_raw(def_id) { + self.tcx.sess.emit_err(errors::ConstSelectMustBeConst { span }); + } + } else { + let const_param: ty::GenericArg<'tcx> = + ([self.tcx.consts.false_, self.tcx.consts.true_])[idx].into(); + self.register_predicate(traits::Obligation::new( + self.tcx, + self.misc(span), + self.param_env, + ty::TraitRef::new( + self.tcx, + fn_once_def_id, + [arg_ty.into(), fn_sig.inputs()[0].into(), const_param], + ), + )); + + self.register_predicate(traits::Obligation::new( + self.tcx, + self.misc(span), + self.param_env, + ty::ProjectionPredicate { + projection_ty: ty::AliasTy::new( + self.tcx, + fn_once_output_def_id, + [arg_ty.into(), fn_sig.inputs()[0].into(), const_param], + ), + term: fn_sig.output().into(), + }, + )); + + self.select_obligations_where_possible(|_| {}); + } + } else { + self.tcx.sess.emit_err(errors::ConstSelectMustBeFn { span, ty: arg_ty }); + } + } + } + fn_sig.output() } diff --git a/compiler/rustc_hir_typeck/src/cast.rs b/compiler/rustc_hir_typeck/src/cast.rs index 0de0365364c..9783fe79a90 100644 --- a/compiler/rustc_hir_typeck/src/cast.rs +++ b/compiler/rustc_hir_typeck/src/cast.rs @@ -187,7 +187,7 @@ fn make_invalid_casting_error<'a, 'tcx>( expr_ty: Ty<'tcx>, cast_ty: Ty<'tcx>, fcx: &FnCtxt<'a, 'tcx>, -) -> DiagnosticBuilder<'a, ErrorGuaranteed> { +) -> DiagnosticBuilder<'a> { type_error_struct!( sess, span, diff --git a/compiler/rustc_hir_typeck/src/check.rs b/compiler/rustc_hir_typeck/src/check.rs index 7facf8a4016..8e2af402918 100644 --- a/compiler/rustc_hir_typeck/src/check.rs +++ b/compiler/rustc_hir_typeck/src/check.rs @@ -59,7 +59,8 @@ pub(super) fn check_fn<'a, 'tcx>( && can_be_coroutine.is_some() { let yield_ty = match kind { - hir::CoroutineKind::Gen(..) | hir::CoroutineKind::Coroutine => { + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _) + | hir::CoroutineKind::Coroutine => { let yield_ty = fcx.next_ty_var(TypeVariableOrigin { kind: TypeVariableOriginKind::TypeInference, span, @@ -71,7 +72,7 @@ pub(super) fn check_fn<'a, 'tcx>( // guide inference on the yield type so that we can handle `AsyncIterator` // in this block in projection correctly. In the new trait solver, it is // not a problem. - hir::CoroutineKind::AsyncGen(..) => { + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _) => { let yield_ty = fcx.next_ty_var(TypeVariableOrigin { kind: TypeVariableOriginKind::TypeInference, span, @@ -89,7 +90,7 @@ pub(super) fn check_fn<'a, 'tcx>( .into()]), ) } - hir::CoroutineKind::Async(..) => Ty::new_unit(tcx), + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _) => Ty::new_unit(tcx), }; // Resume type defaults to `()` if the coroutine has no argument. @@ -261,7 +262,7 @@ fn check_panic_info_fn(tcx: TyCtxt<'_>, fn_id: LocalDefId, fn_sig: ty::FnSig<'_> bounds, ); - check_function_signature( + let _ = check_function_signature( tcx, ObligationCause::new( tcx.def_span(fn_id), @@ -300,7 +301,7 @@ fn check_lang_start_fn<'tcx>(tcx: TyCtxt<'tcx>, fn_sig: ty::FnSig<'tcx>, def_id: Abi::Rust, )); - check_function_signature( + let _ = check_function_signature( tcx, ObligationCause::new( tcx.def_span(def_id), diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs index 7e43d67587b..cd42be28e6f 100644 --- a/compiler/rustc_hir_typeck/src/closure.rs +++ b/compiler/rustc_hir_typeck/src/closure.rs @@ -634,7 +634,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // In the case of the async block that we create for a function body, // we expect the return type of the block to match that of the enclosing // function. - Some(hir::CoroutineKind::Async(hir::CoroutineSource::Fn)) => { + Some(hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Async, + hir::CoroutineSource::Fn, + )) => { debug!("closure is async fn body"); let def_id = self.tcx.hir().body_owner_def_id(body.id()); self.deduce_future_output_from_obligations(expr_def_id, def_id).unwrap_or_else( @@ -650,9 +653,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { }, ) } - // For a `gen {}` block created as a `gen fn` body, we need the return type to be - // (). - Some(hir::CoroutineKind::Gen(hir::CoroutineSource::Fn)) => self.tcx.types.unit, + // All `gen {}` and `async gen {}` must return unit. + Some( + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _) + | hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _), + ) => self.tcx.types.unit, _ => astconv.ty_infer(None, decl.output.span()), }, diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index 61236c07135..aed2dbb4505 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -36,9 +36,7 @@ //! ``` use crate::FnCtxt; -use rustc_errors::{ - struct_span_err, Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, MultiSpan, -}; +use rustc_errors::{struct_span_err, Applicability, Diagnostic, DiagnosticBuilder, MultiSpan}; use rustc_hir as hir; use rustc_hir::def_id::DefId; use rustc_hir::intravisit::{self, Visitor}; @@ -1772,7 +1770,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { id: hir::HirId, expression: Option<&'tcx hir::Expr<'tcx>>, blk_id: Option<hir::HirId>, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'a> { let mut err = fcx.err_ctxt().report_mismatched_types(cause, expected, found, ty_err); let parent_id = fcx.tcx.hir().parent_id(id); diff --git a/compiler/rustc_hir_typeck/src/demand.rs b/compiler/rustc_hir_typeck/src/demand.rs index 8b666c63425..6e5bd740b2e 100644 --- a/compiler/rustc_hir_typeck/src/demand.rs +++ b/compiler/rustc_hir_typeck/src/demand.rs @@ -1,6 +1,6 @@ use crate::FnCtxt; use rustc_errors::MultiSpan; -use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed}; +use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder}; use rustc_hir as hir; use rustc_hir::def::Res; use rustc_hir::intravisit::Visitor; @@ -168,7 +168,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { sp: Span, expected: Ty<'tcx>, actual: Ty<'tcx>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { self.demand_suptype_with_origin(&self.misc(sp), expected, actual) } @@ -178,7 +178,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { cause: &ObligationCause<'tcx>, expected: Ty<'tcx>, actual: Ty<'tcx>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { match self.at(cause, self.param_env).sup(DefineOpaqueTypes::Yes, expected, actual) { Ok(InferOk { obligations, value: () }) => { self.register_predicates(obligations); @@ -199,7 +199,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { sp: Span, expected: Ty<'tcx>, actual: Ty<'tcx>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { self.demand_eqtype_with_origin(&self.misc(sp), expected, actual) } @@ -208,7 +208,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { cause: &ObligationCause<'tcx>, expected: Ty<'tcx>, actual: Ty<'tcx>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { match self.at(cause, self.param_env).eq(DefineOpaqueTypes::Yes, expected, actual) { Ok(InferOk { obligations, value: () }) => { self.register_predicates(obligations); @@ -246,7 +246,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { expected: Ty<'tcx>, mut expected_ty_expr: Option<&'tcx hir::Expr<'tcx>>, allow_two_phase: AllowTwoPhase, - ) -> (Ty<'tcx>, Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>>) { + ) -> (Ty<'tcx>, Option<DiagnosticBuilder<'tcx>>) { let expected = self.resolve_vars_with_obligations(expected); let e = match self.coerce(expr, checked_ty, expected, allow_two_phase, None) { diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index 80265cf31e6..c4755b852bd 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -722,7 +722,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let [segment] = path.segments && segment.ident.name == sym::rust { - fatally_break_rust(self.tcx); + fatally_break_rust(self.tcx, expr.span); } } } @@ -966,7 +966,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { pub fn check_for_missing_semi( &self, expr: &'tcx hir::Expr<'tcx>, - err: &mut DiagnosticBuilder<'_, ErrorGuaranteed>, + err: &mut DiagnosticBuilder<'_>, ) -> bool { if let hir::ExprKind::Binary(binop, lhs, rhs) = expr.kind && let hir::BinOpKind::Mul = binop.node @@ -1436,12 +1436,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { && let hir::ArrayLen::Body(hir::AnonConst { hir_id, .. }) = length && let Some(span) = self.tcx.hir().opt_span(hir_id) { - match self - .tcx - .sess - .diagnostic() - .steal_diagnostic(span, StashKey::UnderscoreForArrayLengths) - { + match self.tcx.sess.dcx().steal_diagnostic(span, StashKey::UnderscoreForArrayLengths) { Some(mut err) => { err.span_suggestion( span, @@ -2002,11 +1997,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { != range_def_id { // Suppress any range expr type mismatches - if let Some(mut diag) = self - .tcx - .sess - .diagnostic() - .steal_diagnostic(last_expr_field.span, StashKey::MaybeFruTypo) + if let Some(mut diag) = + self.tcx.sess.dcx().steal_diagnostic(last_expr_field.span, StashKey::MaybeFruTypo) { diag.delay_as_bug(); } @@ -2746,7 +2738,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { field: Ident, expr_t: Ty<'tcx>, id: HirId, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'_> { let span = field.span; debug!("no_such_field_err(span: {:?}, field: {:?}, expr_t: {:?})", span, field, expr_t); @@ -2829,11 +2821,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { err } - fn private_field_err( - &self, - field: Ident, - base_did: DefId, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { + fn private_field_err(&self, field: Ident, base_did: DefId) -> DiagnosticBuilder<'_> { let struct_path = self.tcx().def_path_str(base_did); let kind_name = self.tcx().def_descr(base_did); let mut err = struct_span_err!( diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index 3bee42eb89c..4bc237c2383 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -848,7 +848,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { && let Some(mut diag) = self .tcx .sess - .diagnostic() + .dcx() .steal_diagnostic(qself.span, StashKey::TraitMissingMethod) { diag.emit(); @@ -884,7 +884,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { && let Some(mut diag) = self .tcx .sess - .diagnostic() + .dcx() .steal_diagnostic(qself.span, StashKey::TraitMissingMethod) { if trait_missing_method { @@ -1498,7 +1498,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let ty = self.resolve_vars_with_obligations(ty); if self.next_trait_solver() - && let ty::Alias(ty::Projection | ty::Inherent | ty::Weak, _) = ty.kind() + && let ty::Alias(..) = ty.kind() { match self .at(&self.misc(sp), self.param_env) diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 3f97b24aa59..752401845cd 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -230,11 +230,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let minimum_input_count = expected_input_tys.len(); let provided_arg_count = provided_args.len(); - let is_const_eval_select = matches!(fn_def_id, Some(def_id) if - self.tcx.def_kind(def_id) == hir::def::DefKind::Fn - && self.tcx.is_intrinsic(def_id) - && self.tcx.item_name(def_id) == sym::const_eval_select); - // We introduce a helper function to demand that a given argument satisfy a given input // This is more complicated than just checking type equality, as arguments could be coerced // This version writes those types back so further type checking uses the narrowed types @@ -269,30 +264,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return Compatibility::Incompatible(coerce_error); } - // Check that second and third argument of `const_eval_select` must be `FnDef`, and additionally that - // the second argument must be `const fn`. The first argument must be a tuple, but this is already expressed - // in the function signature (`F: FnOnce<ARG>`), so I did not bother to add another check here. - // - // This check is here because there is currently no way to express a trait bound for `FnDef` types only. - if is_const_eval_select && (1..=2).contains(&idx) { - if let ty::FnDef(def_id, args) = *checked_ty.kind() { - if idx == 1 { - if !self.tcx.is_const_fn_raw(def_id) { - self.tcx.sess.emit_err(errors::ConstSelectMustBeConst { - span: provided_arg.span, - }); - } else { - self.enforce_context_effects(provided_arg.span, def_id, args) - } - } - } else { - self.tcx.sess.emit_err(errors::ConstSelectMustBeFn { - span: provided_arg.span, - ty: checked_ty, - }); - } - } - // 3. Check if the formal type is a supertype of the checked one // and register any such obligations for future type checks let supertype_error = self.at(&self.misc(provided_arg.span), self.param_env).sup( @@ -1287,7 +1258,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { expected_ty: Ty<'tcx>, provided_ty: Ty<'tcx>, arg: &hir::Expr<'tcx>, - err: &mut rustc_errors::DiagnosticBuilder<'tcx, ErrorGuaranteed>, + err: &mut rustc_errors::DiagnosticBuilder<'tcx>, ) { if let ty::RawPtr(ty::TypeAndMut { mutbl: hir::Mutability::Mut, .. }) = expected_ty.kind() && let ty::RawPtr(ty::TypeAndMut { mutbl: hir::Mutability::Not, .. }) = @@ -1852,7 +1823,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ) { for (span, code) in errors_causecode { let Some(mut diag) = - self.tcx.sess.diagnostic().steal_diagnostic(span, StashKey::MaybeForgetReturn) + self.tcx.sess.dcx().steal_diagnostic(span, StashKey::MaybeForgetReturn) else { continue; }; diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index 668e547571f..d2917b25c54 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -17,8 +17,8 @@ use rustc_hir::def::Res; use rustc_hir::def::{CtorKind, CtorOf, DefKind}; use rustc_hir::lang_items::LangItem; use rustc_hir::{ - CoroutineKind, CoroutineSource, Expr, ExprKind, GenericBound, HirId, Node, Path, QPath, Stmt, - StmtKind, TyKind, WherePredicate, + CoroutineDesugaring, CoroutineKind, CoroutineSource, Expr, ExprKind, GenericBound, HirId, Node, + Path, QPath, Stmt, StmtKind, TyKind, WherePredicate, }; use rustc_hir_analysis::astconv::AstConv; use rustc_infer::traits::{self, StatementAsExpression}; @@ -549,7 +549,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ty::Coroutine(def_id, ..) if matches!( self.tcx.coroutine_kind(def_id), - Some(CoroutineKind::Async(CoroutineSource::Closure)) + Some(CoroutineKind::Desugared( + CoroutineDesugaring::Async, + CoroutineSource::Closure + )) ) => { errors::SuggestBoxing::AsyncBody diff --git a/compiler/rustc_hir_typeck/src/lib.rs b/compiler/rustc_hir_typeck/src/lib.rs index f1f893623f6..c6d7650f745 100644 --- a/compiler/rustc_hir_typeck/src/lib.rs +++ b/compiler/rustc_hir_typeck/src/lib.rs @@ -52,7 +52,7 @@ use crate::expectation::Expectation; use crate::fn_ctxt::RawTy; use crate::gather_locals::GatherLocalsVisitor; use rustc_data_structures::unord::UnordSet; -use rustc_errors::{struct_span_err, DiagnosticId, ErrorGuaranteed, MultiSpan}; +use rustc_errors::{struct_span_err, DiagnosticId, ErrorGuaranteed}; use rustc_hir as hir; use rustc_hir::def::{DefKind, Res}; use rustc_hir::intravisit::Visitor; @@ -412,24 +412,25 @@ enum TupleArgumentsFlag { TupleArguments, } -fn fatally_break_rust(tcx: TyCtxt<'_>) { - let handler = tcx.sess.diagnostic(); - handler.span_bug_no_panic( - MultiSpan::new(), +fn fatally_break_rust(tcx: TyCtxt<'_>, span: Span) -> ! { + let dcx = tcx.sess.dcx(); + let mut diag = dcx.struct_span_bug( + span, "It looks like you're trying to break rust; would you like some ICE?", ); - handler.note("the compiler expectedly panicked. this is a feature."); - handler.note( + diag.note("the compiler expectedly panicked. this is a feature."); + diag.note( "we would appreciate a joke overview: \ https://github.com/rust-lang/rust/issues/43162#issuecomment-320764675", ); - handler.note(format!("rustc {} running on {}", tcx.sess.cfg_version, config::host_triple(),)); + diag.note(format!("rustc {} running on {}", tcx.sess.cfg_version, config::host_triple(),)); if let Some((flags, excluded_cargo_defaults)) = rustc_session::utils::extra_compiler_flags() { - handler.note(format!("compiler flags: {}", flags.join(" "))); + diag.note(format!("compiler flags: {}", flags.join(" "))); if excluded_cargo_defaults { - handler.note("some of the compiler flags provided by cargo are hidden"); + diag.note("some of the compiler flags provided by cargo are hidden"); } } + diag.emit() } /// `expected` here is the expected number of explicit generic arguments on the trait. diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index 8fb703fa7f5..9327161eccb 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -13,8 +13,7 @@ use rustc_data_structures::fx::{FxIndexMap, FxIndexSet}; use rustc_data_structures::unord::UnordSet; use rustc_errors::StashKey; use rustc_errors::{ - pluralize, struct_span_err, Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, - MultiSpan, + pluralize, struct_span_err, Applicability, Diagnostic, DiagnosticBuilder, MultiSpan, }; use rustc_hir as hir; use rustc_hir::def::DefKind; @@ -120,7 +119,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { args: Option<&'tcx [hir::Expr<'tcx>]>, expected: Expectation<'tcx>, trait_missing_method: bool, - ) -> Option<DiagnosticBuilder<'_, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'_>> { // Avoid suggestions when we don't know what's going on. if rcvr_ty.references_error() { return None; @@ -261,7 +260,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { &self, rcvr_ty: Ty<'tcx>, rcvr_expr: &hir::Expr<'tcx>, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'_> { let mut file = None; let ty_str = self.tcx.short_ty_string(rcvr_ty, &mut file); let mut err = struct_span_err!( @@ -299,7 +298,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { no_match_data: &mut NoMatchData<'tcx>, expected: Expectation<'tcx>, trait_missing_method: bool, - ) -> Option<DiagnosticBuilder<'_, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'_>> { let mode = no_match_data.mode; let tcx = self.tcx; let rcvr_ty = self.resolve_vars_if_possible(rcvr_ty); @@ -1929,7 +1928,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return; }; let Some(mut diag) = - self.tcx.sess.diagnostic().steal_diagnostic(seg1.ident.span, StashKey::CallAssocMethod) + self.tcx.sess.dcx().steal_diagnostic(seg1.ident.span, StashKey::CallAssocMethod) else { return; }; diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index 56a420fab4f..0c0af51cb0d 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -99,7 +99,7 @@ impl<'tcx> FnCtxt<'_, 'tcx> { expected: Ty<'tcx>, actual: Ty<'tcx>, ti: TopInfo<'tcx>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { let mut diag = self.demand_eqtype_with_origin(&self.pattern_cause(ti, cause_span), expected, actual)?; if let Some(expr) = ti.origin_expr { @@ -967,7 +967,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { fn emit_bad_pat_path( &self, - mut e: DiagnosticBuilder<'_, ErrorGuaranteed>, + mut e: DiagnosticBuilder<'_>, pat: &hir::Pat<'tcx>, res: Res, pat_res: Res, @@ -1508,7 +1508,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { variant: &VariantDef, pat: &'_ Pat<'_>, fields: &[hir::PatField<'_>], - ) -> Option<DiagnosticBuilder<'_, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'_>> { // if this is a tuple struct, then all field names will be numbers // so if any fields in a struct pattern use shorthand syntax, they will // be invalid identifiers (for example, Foo { 0, 1 }). @@ -1584,7 +1584,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { pat: &'tcx Pat<'tcx>, variant: &ty::VariantDef, args: &'tcx ty::List<ty::GenericArg<'tcx>>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let tcx = self.tcx; let (field_names, t, plural) = if let [field] = inexistent_fields { (format!("a field named `{}`", field.ident), "this", "") @@ -1689,7 +1689,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { pat: &Pat<'_>, fields: &'tcx [hir::PatField<'tcx>], variant: &ty::VariantDef, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { if let (Some(CtorKind::Fn), PatKind::Struct(qpath, pattern_fields, ..)) = (variant.ctor_kind(), &pat.kind) { @@ -1775,7 +1775,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { &self, pat: &Pat<'_>, fields: &'tcx [hir::PatField<'tcx>], - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let mut err = self .tcx .sess @@ -1867,7 +1867,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { unmentioned_fields: &[(&ty::FieldDef, Ident)], have_inaccessible_fields: bool, fields: &'tcx [hir::PatField<'tcx>], - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let inaccessible = if have_inaccessible_fields { " and inaccessible fields" } else { "" }; let field_names = if let [(_, field)] = unmentioned_fields { format!("field `{field}`{inaccessible}") diff --git a/compiler/rustc_hir_typeck/src/upvar.rs b/compiler/rustc_hir_typeck/src/upvar.rs index 69d6fb8e2ea..726ee02d75e 100644 --- a/compiler/rustc_hir_typeck/src/upvar.rs +++ b/compiler/rustc_hir_typeck/src/upvar.rs @@ -680,49 +680,37 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // `tests/ui/closures/2229_closure_analysis/preserve_field_drop_order.rs`. for (_, captures) in &mut root_var_min_capture_list { captures.sort_by(|capture1, capture2| { - for (p1, p2) in capture1.place.projections.iter().zip(&capture2.place.projections) { + fn is_field<'a>(p: &&Projection<'a>) -> bool { + match p.kind { + ProjectionKind::Field(_, _) => true, + ProjectionKind::Deref | ProjectionKind::OpaqueCast => false, + p @ (ProjectionKind::Subslice | ProjectionKind::Index) => { + bug!("ProjectionKind {:?} was unexpected", p) + } + } + } + + // Need to sort only by Field projections, so filter away others. + // A previous implementation considered other projection types too + // but that caused ICE #118144 + let capture1_field_projections = capture1.place.projections.iter().filter(is_field); + let capture2_field_projections = capture2.place.projections.iter().filter(is_field); + + for (p1, p2) in capture1_field_projections.zip(capture2_field_projections) { // We do not need to look at the `Projection.ty` fields here because at each // step of the iteration, the projections will either be the same and therefore // the types must be as well or the current projection will be different and // we will return the result of comparing the field indexes. match (p1.kind, p2.kind) { - // Paths are the same, continue to next loop. - (ProjectionKind::Deref, ProjectionKind::Deref) => {} - (ProjectionKind::OpaqueCast, ProjectionKind::OpaqueCast) => {} - (ProjectionKind::Field(i1, _), ProjectionKind::Field(i2, _)) - if i1 == i2 => {} - - // Fields are different, compare them. (ProjectionKind::Field(i1, _), ProjectionKind::Field(i2, _)) => { - return i1.cmp(&i2); + // Compare only if paths are different. + // Otherwise continue to the next iteration + if i1 != i2 { + return i1.cmp(&i2); + } } - - // We should have either a pair of `Deref`s or a pair of `Field`s. - // Anything else is a bug. - ( - l @ (ProjectionKind::Deref | ProjectionKind::Field(..)), - r @ (ProjectionKind::Deref | ProjectionKind::Field(..)), - ) => bug!( - "ProjectionKinds Deref and Field were mismatched: ({:?}, {:?})", - l, - r - ), - ( - l @ (ProjectionKind::Index - | ProjectionKind::Subslice - | ProjectionKind::Deref - | ProjectionKind::OpaqueCast - | ProjectionKind::Field(..)), - r @ (ProjectionKind::Index - | ProjectionKind::Subslice - | ProjectionKind::Deref - | ProjectionKind::OpaqueCast - | ProjectionKind::Field(..)), - ) => bug!( - "ProjectionKinds Index or Subslice were unexpected: ({:?}, {:?})", - l, - r - ), + // Given the filter above, this arm should never be hit + (l, r) => bug!("ProjectionKinds {:?} or {:?} were unexpected", l, r), } } diff --git a/compiler/rustc_hir_typeck/src/writeback.rs b/compiler/rustc_hir_typeck/src/writeback.rs index 5e562d9453f..d0cf4575c8f 100644 --- a/compiler/rustc_hir_typeck/src/writeback.rs +++ b/compiler/rustc_hir_typeck/src/writeback.rs @@ -505,7 +505,7 @@ impl<'cx, 'tcx> WritebackCx<'cx, 'tcx> { if !errors_buffer.is_empty() { errors_buffer.sort_by_key(|diag| diag.span.primary_span()); for diag in errors_buffer { - self.tcx().sess.diagnostic().emit_diagnostic(diag); + self.tcx().sess.dcx().emit_diagnostic(diag); } } } diff --git a/compiler/rustc_index/src/bit_set.rs b/compiler/rustc_index/src/bit_set.rs index d0b4889b45f..d730ef58deb 100644 --- a/compiler/rustc_index/src/bit_set.rs +++ b/compiler/rustc_index/src/bit_set.rs @@ -9,6 +9,7 @@ use std::slice; use arrayvec::ArrayVec; use smallvec::{smallvec, SmallVec}; +#[cfg(feature = "nightly")] use rustc_macros::{Decodable, Encodable}; use crate::{Idx, IndexVec}; @@ -111,7 +112,8 @@ macro_rules! bit_relations_inherent_impls { /// to or greater than the domain size. All operations that involve two bitsets /// will panic if the bitsets have differing domain sizes. /// -#[derive(Eq, PartialEq, Hash, Decodable, Encodable)] +#[cfg_attr(feature = "nightly", derive(Decodable, Encodable))] +#[derive(Eq, PartialEq, Hash)] pub struct BitSet<T> { domain_size: usize, words: SmallVec<[Word; 2]>, @@ -491,10 +493,22 @@ impl<T: Idx> ChunkedBitSet<T> { match *chunk { Zeros(chunk_domain_size) => { if chunk_domain_size > 1 { - // We take some effort to avoid copying the words. - let words = Rc::<[Word; CHUNK_WORDS]>::new_zeroed(); - // SAFETY: `words` can safely be all zeroes. - let mut words = unsafe { words.assume_init() }; + #[cfg(feature = "nightly")] + let mut words = { + // We take some effort to avoid copying the words. + let words = Rc::<[Word; CHUNK_WORDS]>::new_zeroed(); + // SAFETY: `words` can safely be all zeroes. + unsafe { words.assume_init() } + }; + #[cfg(not(feature = "nightly"))] + let mut words = { + // FIXME: unconditionally use `Rc::new_zeroed` once it is stable (#63291). + let words = mem::MaybeUninit::<[Word; CHUNK_WORDS]>::zeroed(); + // SAFETY: `words` can safely be all zeroes. + let words = unsafe { words.assume_init() }; + // Unfortunate possibly-large copy + Rc::new(words) + }; let words_ref = Rc::get_mut(&mut words).unwrap(); let (word_index, mask) = chunk_word_index_and_mask(elem); @@ -545,10 +559,22 @@ impl<T: Idx> ChunkedBitSet<T> { Zeros(_) => false, Ones(chunk_domain_size) => { if chunk_domain_size > 1 { - // We take some effort to avoid copying the words. - let words = Rc::<[Word; CHUNK_WORDS]>::new_zeroed(); - // SAFETY: `words` can safely be all zeroes. - let mut words = unsafe { words.assume_init() }; + #[cfg(feature = "nightly")] + let mut words = { + // We take some effort to avoid copying the words. + let words = Rc::<[Word; CHUNK_WORDS]>::new_zeroed(); + // SAFETY: `words` can safely be all zeroes. + unsafe { words.assume_init() } + }; + #[cfg(not(feature = "nightly"))] + let mut words = { + // FIXME: unconditionally use `Rc::new_zeroed` once it is stable (#63291). + let words = mem::MaybeUninit::<[Word; CHUNK_WORDS]>::zeroed(); + // SAFETY: `words` can safely be all zeroes. + let words = unsafe { words.assume_init() }; + // Unfortunate possibly-large copy + Rc::new(words) + }; let words_ref = Rc::get_mut(&mut words).unwrap(); // Set only the bits in use. @@ -1564,7 +1590,8 @@ impl<T: Idx> From<BitSet<T>> for GrowableBitSet<T> { /// /// All operations that involve a row and/or column index will panic if the /// index exceeds the relevant bound. -#[derive(Clone, Eq, PartialEq, Hash, Decodable, Encodable)] +#[cfg_attr(feature = "nightly", derive(Decodable, Encodable))] +#[derive(Clone, Eq, PartialEq, Hash)] pub struct BitMatrix<R: Idx, C: Idx> { num_rows: usize, num_columns: usize, @@ -1993,7 +2020,8 @@ impl std::fmt::Debug for FiniteBitSet<u32> { /// A fixed-sized bitset type represented by an integer type. Indices outwith than the range /// representable by `T` are considered set. -#[derive(Copy, Clone, Eq, PartialEq, Decodable, Encodable)] +#[cfg_attr(feature = "nightly", derive(Decodable, Encodable))] +#[derive(Copy, Clone, Eq, PartialEq)] pub struct FiniteBitSet<T: FiniteBitSetTy>(pub T); impl<T: FiniteBitSetTy> FiniteBitSet<T> { diff --git a/compiler/rustc_index/src/lib.rs b/compiler/rustc_index/src/lib.rs index c5602392c53..185e0c7d698 100644 --- a/compiler/rustc_index/src/lib.rs +++ b/compiler/rustc_index/src/lib.rs @@ -14,7 +14,6 @@ )] #![cfg_attr(feature = "nightly", allow(internal_features))] -#[cfg(feature = "nightly")] pub mod bit_set; #[cfg(feature = "nightly")] pub mod interval; diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index c118c405c20..d77c224f3c8 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -306,7 +306,7 @@ pub fn unexpected_hidden_region_diagnostic<'tcx>( hidden_ty: Ty<'tcx>, hidden_region: ty::Region<'tcx>, opaque_ty_key: ty::OpaqueTypeKey<'tcx>, -) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { +) -> DiagnosticBuilder<'tcx> { let mut err = tcx.sess.create_err(errors::OpaqueCapturesLifetime { span, opaque_ty: Ty::new_opaque(tcx, opaque_ty_key.def_id.to_def_id(), opaque_ty_key.args), @@ -2171,7 +2171,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { &self, trace: TypeTrace<'tcx>, terr: TypeError<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { debug!("report_and_explain_type_error(trace={:?}, terr={:?})", trace, terr); let span = trace.cause.span(); @@ -2319,7 +2319,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { origin: Option<SubregionOrigin<'tcx>>, bound_kind: GenericKind<'tcx>, sub: Region<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { if let Some(SubregionOrigin::CompareImplItemObligation { span, impl_item_def_id, @@ -2653,11 +2653,6 @@ impl<'tcx> TypeRelation<'tcx> for SameTypeModuloInfer<'_, 'tcx> { self.0.tcx } - fn param_env(&self) -> ty::ParamEnv<'tcx> { - // Unused, only for consts which we treat as always equal - ty::ParamEnv::empty() - } - fn tag(&self) -> &'static str { "SameTypeModuloInfer" } @@ -2737,7 +2732,7 @@ impl<'tcx> InferCtxt<'tcx> { fn report_inference_failure( &self, var_origin: RegionVariableOrigin, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let br_string = |br: ty::BoundRegionKind| { let mut s = match br { ty::BrNamed(_, name) => name.to_string(), diff --git a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs index 1caa9aa8cd6..fd38e52cfde 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs @@ -5,8 +5,7 @@ use crate::errors::{ use crate::infer::error_reporting::TypeErrCtxt; use crate::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; use crate::infer::InferCtxt; -use rustc_errors::IntoDiagnostic; -use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed, IntoDiagnosticArg}; +use rustc_errors::{DiagnosticBuilder, IntoDiagnosticArg}; use rustc_hir as hir; use rustc_hir::def::Res; use rustc_hir::def::{CtorOf, DefKind, Namespace}; @@ -359,7 +358,7 @@ impl<'tcx> InferCtxt<'tcx> { span: Span, arg_data: InferenceDiagnosticsData, error_code: TypeAnnotationNeeded, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let source_kind = "other"; let source_name = ""; let failure_span = None; @@ -367,7 +366,7 @@ impl<'tcx> InferCtxt<'tcx> { let multi_suggestions = Vec::new(); let bad_label = Some(arg_data.make_bad_error(span)); match error_code { - TypeAnnotationNeeded::E0282 => AnnotationRequired { + TypeAnnotationNeeded::E0282 => self.tcx.sess.dcx().create_err(AnnotationRequired { span, source_kind, source_name, @@ -375,9 +374,8 @@ impl<'tcx> InferCtxt<'tcx> { infer_subdiags, multi_suggestions, bad_label, - } - .into_diagnostic(self.tcx.sess.diagnostic()), - TypeAnnotationNeeded::E0283 => AmbiguousImpl { + }), + TypeAnnotationNeeded::E0283 => self.tcx.sess.dcx().create_err(AmbiguousImpl { span, source_kind, source_name, @@ -385,9 +383,8 @@ impl<'tcx> InferCtxt<'tcx> { infer_subdiags, multi_suggestions, bad_label, - } - .into_diagnostic(self.tcx.sess.diagnostic()), - TypeAnnotationNeeded::E0284 => AmbiguousReturn { + }), + TypeAnnotationNeeded::E0284 => self.tcx.sess.dcx().create_err(AmbiguousReturn { span, source_kind, source_name, @@ -395,8 +392,7 @@ impl<'tcx> InferCtxt<'tcx> { infer_subdiags, multi_suggestions, bad_label, - } - .into_diagnostic(self.tcx.sess.diagnostic()), + }), } } } @@ -410,7 +406,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { arg: GenericArg<'tcx>, error_code: TypeAnnotationNeeded, should_label_span: bool, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let arg = self.resolve_vars_if_possible(arg); let arg_data = self.extract_inference_diagnostics_data(arg, None); @@ -574,7 +570,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { } } match error_code { - TypeAnnotationNeeded::E0282 => AnnotationRequired { + TypeAnnotationNeeded::E0282 => self.tcx.sess.dcx().create_err(AnnotationRequired { span, source_kind, source_name: &name, @@ -582,9 +578,8 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { infer_subdiags, multi_suggestions, bad_label: None, - } - .into_diagnostic(self.tcx.sess.diagnostic()), - TypeAnnotationNeeded::E0283 => AmbiguousImpl { + }), + TypeAnnotationNeeded::E0283 => self.tcx.sess.dcx().create_err(AmbiguousImpl { span, source_kind, source_name: &name, @@ -592,9 +587,8 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { infer_subdiags, multi_suggestions, bad_label: None, - } - .into_diagnostic(self.tcx.sess.diagnostic()), - TypeAnnotationNeeded::E0284 => AmbiguousReturn { + }), + TypeAnnotationNeeded::E0284 => self.tcx.sess.dcx().create_err(AmbiguousReturn { span, source_kind, source_name: &name, @@ -602,8 +596,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { infer_subdiags, multi_suggestions, bad_label: None, - } - .into_diagnostic(self.tcx.sess.diagnostic()), + }), } } } diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/mod.rs index 2a70c4673b0..e13d1d38a89 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/mod.rs @@ -50,7 +50,7 @@ impl<'cx, 'tcx> NiceRegionError<'cx, 'tcx> { self.cx.tcx } - pub fn try_report_from_nll(&self) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + pub fn try_report_from_nll(&self) -> Option<DiagnosticBuilder<'tcx>> { // Due to the improved diagnostics returned by the MIR borrow checker, only a subset of // the nice region errors are required when running under the MIR borrow checker. self.try_report_named_anon_conflict() diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/named_anon_conflict.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/named_anon_conflict.rs index 1b43022f8f7..a5a69b77a05 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/named_anon_conflict.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/named_anon_conflict.rs @@ -5,16 +5,14 @@ use crate::{ errors::ExplicitLifetimeRequired, infer::error_reporting::nice_region_error::find_anon_type::find_anon_type, }; -use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed}; +use rustc_errors::DiagnosticBuilder; use rustc_middle::ty; use rustc_span::symbol::kw; impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { /// When given a `ConcreteFailure` for a function with parameters containing a named region and /// an anonymous region, emit an descriptive diagnostic error. - pub(super) fn try_report_named_anon_conflict( - &self, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + pub(super) fn try_report_named_anon_conflict(&self) -> Option<DiagnosticBuilder<'tcx>> { let (span, sub, sup) = self.regions()?; debug!( diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs index d98ca995d71..45affb538a3 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs @@ -8,7 +8,7 @@ use crate::infer::ValuePairs; use crate::infer::{SubregionOrigin, TypeTrace}; use crate::traits::{ObligationCause, ObligationCauseCode}; use rustc_data_structures::intern::Interned; -use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed, IntoDiagnosticArg}; +use rustc_errors::{DiagnosticBuilder, IntoDiagnosticArg}; use rustc_hir::def::Namespace; use rustc_hir::def_id::DefId; use rustc_middle::ty::error::ExpectedFound; @@ -57,9 +57,7 @@ where impl<'tcx> NiceRegionError<'_, 'tcx> { /// When given a `ConcreteFailure` for a function with arguments containing a named region and /// an anonymous region, emit a descriptive diagnostic error. - pub(super) fn try_report_placeholder_conflict( - &self, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + pub(super) fn try_report_placeholder_conflict(&self) -> Option<DiagnosticBuilder<'tcx>> { match &self.error { /////////////////////////////////////////////////////////////////////////// // NB. The ordering of cases in this match is very @@ -195,7 +193,7 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { sub_placeholder: Option<Region<'tcx>>, sup_placeholder: Option<Region<'tcx>>, value_pairs: &ValuePairs<'tcx>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { let (expected_args, found_args, trait_def_id) = match value_pairs { ValuePairs::PolyTraitRefs(ExpectedFound { expected, found }) if expected.def_id() == found.def_id() => @@ -238,7 +236,7 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { trait_def_id: DefId, expected_args: GenericArgsRef<'tcx>, actual_args: GenericArgsRef<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let span = cause.span(); let (leading_ellipsis, satisfy_span, where_span, dup_span, def_id) = diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_relation.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_relation.rs index f5b8912532b..51b65a9dd2d 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_relation.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_relation.rs @@ -5,14 +5,12 @@ use crate::{ }, }; use rustc_data_structures::intern::Interned; -use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed}; +use rustc_errors::DiagnosticBuilder; use rustc_middle::ty::{self, RePlaceholder, Region}; impl<'tcx> NiceRegionError<'_, 'tcx> { /// Emitted wwhen given a `ConcreteFailure` when relating two placeholders. - pub(super) fn try_report_placeholder_relation( - &self, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + pub(super) fn try_report_placeholder_relation(&self) -> Option<DiagnosticBuilder<'tcx>> { match &self.error { Some(RegionResolutionError::ConcreteFailure( SubregionOrigin::RelateRegionParamBound(span), diff --git a/compiler/rustc_infer/src/infer/error_reporting/note.rs b/compiler/rustc_infer/src/infer/error_reporting/note.rs index 1e365848e07..73139d8e720 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/note.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/note.rs @@ -5,9 +5,7 @@ use crate::errors::{ use crate::fluent_generated as fluent; use crate::infer::error_reporting::{note_and_explain_region, TypeErrCtxt}; use crate::infer::{self, SubregionOrigin}; -use rustc_errors::{ - AddToDiagnostic, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, IntoDiagnostic, -}; +use rustc_errors::{AddToDiagnostic, Diagnostic, DiagnosticBuilder}; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_middle::traits::ObligationCauseCode; use rustc_middle::ty::error::TypeError; @@ -80,7 +78,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { origin: SubregionOrigin<'tcx>, sub: Region<'tcx>, sup: Region<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let mut err = match origin { infer::Subtype(box trace) => { let terr = TypeError::RegionsDoesNotOutlive(sup, sub); @@ -136,11 +134,10 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { note_and_explain::PrefixKind::ContentValidFor, note_and_explain::SuffixKind::Empty, ); - OutlivesContent { + self.tcx.sess.dcx().create_err(OutlivesContent { span, notes: reference_valid.into_iter().chain(content_valid).collect(), - } - .into_diagnostic(self.tcx.sess.diagnostic()) + }) } infer::RelateObjectBound(span) => { let object_valid = note_and_explain::RegionExplanation::new( @@ -157,11 +154,10 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { note_and_explain::PrefixKind::SourcePointerValidFor, note_and_explain::SuffixKind::Empty, ); - OutlivesBound { + self.tcx.sess.dcx().create_err(OutlivesBound { span, notes: object_valid.into_iter().chain(pointer_valid).collect(), - } - .into_diagnostic(self.tcx.sess.diagnostic()) + }) } infer::RelateParamBound(span, ty, opt_span) => { let prefix = match *sub { @@ -176,8 +172,11 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let note = note_and_explain::RegionExplanation::new( self.tcx, sub, opt_span, prefix, suffix, ); - FulfillReqLifetime { span, ty: self.resolve_vars_if_possible(ty), note } - .into_diagnostic(self.tcx.sess.diagnostic()) + self.tcx.sess.dcx().create_err(FulfillReqLifetime { + span, + ty: self.resolve_vars_if_possible(ty), + note, + }) } infer::RelateRegionParamBound(span) => { let param_instantiated = note_and_explain::RegionExplanation::new( @@ -194,11 +193,10 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { note_and_explain::PrefixKind::LfParamMustOutlive, note_and_explain::SuffixKind::Empty, ); - LfBoundNotSatisfied { + self.tcx.sess.dcx().create_err(LfBoundNotSatisfied { span, notes: param_instantiated.into_iter().chain(param_must_outlive).collect(), - } - .into_diagnostic(self.tcx.sess.diagnostic()) + }) } infer::ReferenceOutlivesReferent(ty, span) => { let pointer_valid = note_and_explain::RegionExplanation::new( @@ -215,12 +213,11 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { note_and_explain::PrefixKind::DataValidFor, note_and_explain::SuffixKind::Empty, ); - RefLongerThanData { + self.tcx.sess.dcx().create_err(RefLongerThanData { span, ty: self.resolve_vars_if_possible(ty), notes: pointer_valid.into_iter().chain(data_valid).collect(), - } - .into_diagnostic(self.tcx.sess.diagnostic()) + }) } infer::CompareImplItemObligation { span, impl_item_def_id, trait_item_def_id } => { let mut err = self.report_extra_impl_obligation( @@ -277,11 +274,10 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { note_and_explain::PrefixKind::LfMustOutlive, note_and_explain::SuffixKind::Empty, ); - LfBoundNotSatisfied { + self.tcx.sess.dcx().create_err(LfBoundNotSatisfied { span, notes: instantiated.into_iter().chain(must_outlive).collect(), - } - .into_diagnostic(self.tcx.sess.diagnostic()) + }) } }; if sub.is_error() || sup.is_error() { @@ -354,7 +350,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { placeholder_origin: SubregionOrigin<'tcx>, sub: Region<'tcx>, sup: Region<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { // I can't think how to do better than this right now. -nikomatsakis debug!(?placeholder_origin, ?sub, ?sup, "report_placeholder_failure"); match placeholder_origin { diff --git a/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs b/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs index b6e86e2b676..76d4dc24dce 100644 --- a/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs +++ b/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs @@ -31,13 +31,12 @@ use super::outlives::test_type_match; /// all the variables as well as a set of errors that must be reported. #[instrument(level = "debug", skip(region_rels, var_infos, data))] pub(crate) fn resolve<'tcx>( - param_env: ty::ParamEnv<'tcx>, region_rels: &RegionRelations<'_, 'tcx>, var_infos: VarInfos, data: RegionConstraintData<'tcx>, ) -> (LexicalRegionResolutions<'tcx>, Vec<RegionResolutionError<'tcx>>) { let mut errors = vec![]; - let mut resolver = LexicalResolver { param_env, region_rels, var_infos, data }; + let mut resolver = LexicalResolver { region_rels, var_infos, data }; let values = resolver.infer_variable_values(&mut errors); (values, errors) } @@ -120,7 +119,6 @@ struct RegionAndOrigin<'tcx> { type RegionGraph<'tcx> = Graph<(), Constraint<'tcx>>; struct LexicalResolver<'cx, 'tcx> { - param_env: ty::ParamEnv<'tcx>, region_rels: &'cx RegionRelations<'cx, 'tcx>, var_infos: VarInfos, data: RegionConstraintData<'tcx>, @@ -137,6 +135,10 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { ) -> LexicalRegionResolutions<'tcx> { let mut var_data = self.construct_var_data(); + // Deduplicating constraints is shown to have a positive perf impact. + self.data.constraints.sort_by_key(|(constraint, _)| *constraint); + self.data.constraints.dedup_by_key(|(constraint, _)| *constraint); + if cfg!(debug_assertions) { self.dump_constraints(); } @@ -183,7 +185,7 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { let mut constraints = IndexVec::from_elem(Vec::new(), &var_values.values); // Tracks the changed region vids. let mut changes = Vec::new(); - for constraint in self.data.constraints.keys() { + for (constraint, _) in &self.data.constraints { match *constraint { Constraint::RegSubVar(a_region, b_vid) => { let b_data = var_values.value_mut(b_vid); @@ -678,7 +680,7 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { let dummy_source = graph.add_node(()); let dummy_sink = graph.add_node(()); - for constraint in self.data.constraints.keys() { + for (constraint, _) in &self.data.constraints { match *constraint { Constraint::VarSubVar(a_id, b_id) => { graph.add_edge(NodeIndex(a_id.index()), NodeIndex(b_id.index()), *constraint); @@ -885,9 +887,11 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { } Constraint::RegSubVar(region, _) | Constraint::VarSubReg(_, region) => { + let constraint_idx = + this.constraints.binary_search_by(|(c, _)| c.cmp(&edge.data)).unwrap(); state.result.push(RegionAndOrigin { region, - origin: this.constraints.get(&edge.data).unwrap().clone(), + origin: this.constraints[constraint_idx].1.clone(), }); } @@ -914,12 +918,8 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { match bound { VerifyBound::IfEq(verify_if_eq_b) => { let verify_if_eq_b = var_values.normalize(self.region_rels.tcx, *verify_if_eq_b); - match test_type_match::extract_verify_if_eq( - self.tcx(), - self.param_env, - &verify_if_eq_b, - generic_ty, - ) { + match test_type_match::extract_verify_if_eq(self.tcx(), &verify_if_eq_b, generic_ty) + { Some(r) => { self.bound_is_met(&VerifyBound::OutlivedBy(r), var_values, generic_ty, min) } diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index 3de269da22d..a36735b7600 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -713,10 +713,6 @@ impl<'tcx> InferCtxtBuilder<'tcx> { } impl<'tcx, T> InferOk<'tcx, T> { - pub fn unit(self) -> InferOk<'tcx, ()> { - InferOk { value: (), obligations: self.obligations } - } - /// Extracts `value`, registering any obligations into `fulfill_cx`. pub fn into_value_registering_obligations( self, @@ -1025,15 +1021,10 @@ impl<'tcx> InferCtxt<'tcx> { _ => {} } - Ok(self.commit_if_ok(|_snapshot| { - let ty::SubtypePredicate { a_is_expected, a, b } = - self.instantiate_binder_with_placeholders(predicate); - - let ok = - self.at(cause, param_env).sub_exp(DefineOpaqueTypes::No, a_is_expected, a, b)?; + let ty::SubtypePredicate { a_is_expected, a, b } = + self.instantiate_binder_with_placeholders(predicate); - Ok(ok.unit()) - })) + Ok(self.at(cause, param_env).sub_exp(DefineOpaqueTypes::No, a_is_expected, a, b)) } pub fn region_outlives_predicate( @@ -1749,9 +1740,9 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { sp: Span, mk_diag: M, actual_ty: Ty<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> + ) -> DiagnosticBuilder<'tcx> where - M: FnOnce(String) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>, + M: FnOnce(String) -> DiagnosticBuilder<'tcx>, { let actual_ty = self.resolve_vars_if_possible(actual_ty); debug!("type_error_struct_with_diag({:?}, {:?})", sp, actual_ty); @@ -1772,7 +1763,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { expected: Ty<'tcx>, actual: Ty<'tcx>, err: TypeError<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { self.report_and_explain_type_error(TypeTrace::types(cause, true, expected, actual), err) } @@ -1782,7 +1773,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { expected: ty::Const<'tcx>, actual: ty::Const<'tcx>, err: TypeError<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { self.report_and_explain_type_error(TypeTrace::consts(cause, true, expected, actual), err) } } diff --git a/compiler/rustc_infer/src/infer/outlives/for_liveness.rs b/compiler/rustc_infer/src/infer/outlives/for_liveness.rs index 52cc107ae52..42e3d6cad5a 100644 --- a/compiler/rustc_infer/src/infer/outlives/for_liveness.rs +++ b/compiler/rustc_infer/src/infer/outlives/for_liveness.rs @@ -84,7 +84,6 @@ where } else { test_type_match::extract_verify_if_eq( tcx, - param_env, &outlives.map_bound(|ty::OutlivesPredicate(ty, bound)| { VerifyIfEq { ty, bound } }), diff --git a/compiler/rustc_infer/src/infer/outlives/mod.rs b/compiler/rustc_infer/src/infer/outlives/mod.rs index f7129a5ad89..6379f84aa25 100644 --- a/compiler/rustc_infer/src/infer/outlives/mod.rs +++ b/compiler/rustc_infer/src/infer/outlives/mod.rs @@ -67,7 +67,7 @@ impl<'tcx> InferCtxt<'tcx> { let region_rels = &RegionRelations::new(self.tcx, outlives_env.free_region_map()); let (lexical_region_resolutions, errors) = - lexical_region_resolve::resolve(outlives_env.param_env, region_rels, var_infos, data); + lexical_region_resolve::resolve(region_rels, var_infos, data); let old_value = self.lexical_region_resolutions.replace(Some(lexical_region_resolutions)); assert!(old_value.is_none()); diff --git a/compiler/rustc_infer/src/infer/outlives/test_type_match.rs b/compiler/rustc_infer/src/infer/outlives/test_type_match.rs index 959b34aa145..236dc4ec384 100644 --- a/compiler/rustc_infer/src/infer/outlives/test_type_match.rs +++ b/compiler/rustc_infer/src/infer/outlives/test_type_match.rs @@ -36,15 +36,14 @@ use crate::infer::region_constraints::VerifyIfEq; /// like are used. This is a particular challenge since this function is invoked /// very late in inference and hence cannot make use of the normal inference /// machinery. -#[instrument(level = "debug", skip(tcx, param_env))] +#[instrument(level = "debug", skip(tcx))] pub fn extract_verify_if_eq<'tcx>( tcx: TyCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, verify_if_eq_b: &ty::Binder<'tcx, VerifyIfEq<'tcx>>, test_ty: Ty<'tcx>, ) -> Option<ty::Region<'tcx>> { assert!(!verify_if_eq_b.has_escaping_bound_vars()); - let mut m = MatchAgainstHigherRankedOutlives::new(tcx, param_env); + let mut m = MatchAgainstHigherRankedOutlives::new(tcx); let verify_if_eq = verify_if_eq_b.skip_binder(); m.relate(verify_if_eq.ty, test_ty).ok()?; @@ -73,10 +72,9 @@ pub fn extract_verify_if_eq<'tcx>( } /// True if a (potentially higher-ranked) outlives -#[instrument(level = "debug", skip(tcx, param_env))] +#[instrument(level = "debug", skip(tcx))] pub(super) fn can_match_erased_ty<'tcx>( tcx: TyCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, outlives_predicate: ty::Binder<'tcx, ty::TypeOutlivesPredicate<'tcx>>, erased_ty: Ty<'tcx>, ) -> bool { @@ -87,25 +85,20 @@ pub(super) fn can_match_erased_ty<'tcx>( // pointless micro-optimization true } else { - MatchAgainstHigherRankedOutlives::new(tcx, param_env).relate(outlives_ty, erased_ty).is_ok() + MatchAgainstHigherRankedOutlives::new(tcx).relate(outlives_ty, erased_ty).is_ok() } } struct MatchAgainstHigherRankedOutlives<'tcx> { tcx: TyCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, pattern_depth: ty::DebruijnIndex, map: FxHashMap<ty::BoundRegion, ty::Region<'tcx>>, } impl<'tcx> MatchAgainstHigherRankedOutlives<'tcx> { - fn new( - tcx: TyCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, - ) -> MatchAgainstHigherRankedOutlives<'tcx> { + fn new(tcx: TyCtxt<'tcx>) -> MatchAgainstHigherRankedOutlives<'tcx> { MatchAgainstHigherRankedOutlives { tcx, - param_env, pattern_depth: ty::INNERMOST, map: FxHashMap::default(), } @@ -144,15 +137,13 @@ impl<'tcx> MatchAgainstHigherRankedOutlives<'tcx> { impl<'tcx> TypeRelation<'tcx> for MatchAgainstHigherRankedOutlives<'tcx> { fn tag(&self) -> &'static str { - "Match" + "MatchAgainstHigherRankedOutlives" } fn tcx(&self) -> TyCtxt<'tcx> { self.tcx } - fn param_env(&self) -> ty::ParamEnv<'tcx> { - self.param_env - } + fn a_is_expected(&self) -> bool { true } // irrelevant diff --git a/compiler/rustc_infer/src/infer/outlives/verify.rs b/compiler/rustc_infer/src/infer/outlives/verify.rs index bb578a482e4..90282f58e94 100644 --- a/compiler/rustc_infer/src/infer/outlives/verify.rs +++ b/compiler/rustc_infer/src/infer/outlives/verify.rs @@ -1,7 +1,7 @@ use crate::infer::outlives::components::{compute_alias_components_recursive, Component}; use crate::infer::outlives::env::RegionBoundPairs; use crate::infer::region_constraints::VerifyIfEq; -use crate::infer::VerifyBound; +use crate::infer::{GenericKind, VerifyBound}; use rustc_data_structures::sso::SsoHashSet; use rustc_middle::ty::GenericArg; use rustc_middle::ty::{self, OutlivesPredicate, Ty, TyCtxt}; @@ -240,10 +240,20 @@ impl<'cx, 'tcx> VerifyBoundCx<'cx, 'tcx> { "declared_generic_bounds_from_env_for_erased_ty: region_bound_pair = {:?}", (r, p) ); + // Fast path for the common case. + match (&p, erased_ty.kind()) { + // In outlive routines, all types are expected to be fully normalized. + // And therefore we can safely use structural equality for alias types. + (GenericKind::Param(p1), ty::Param(p2)) if p1 == p2 => {} + (GenericKind::Placeholder(p1), ty::Placeholder(p2)) if p1 == p2 => {} + (GenericKind::Alias(a1), ty::Alias(_, a2)) if a1.def_id == a2.def_id => {} + _ => return None, + } + let p_ty = p.to_ty(tcx); let erased_p_ty = self.tcx.erase_regions(p_ty); (erased_p_ty == erased_ty) - .then_some(ty::Binder::dummy(ty::OutlivesPredicate(p.to_ty(tcx), r))) + .then_some(ty::Binder::dummy(ty::OutlivesPredicate(p_ty, r))) }); param_bounds @@ -312,14 +322,8 @@ impl<'cx, 'tcx> VerifyBoundCx<'cx, 'tcx> { ) -> impl Iterator<Item = ty::Binder<'tcx, ty::OutlivesPredicate<Ty<'tcx>, ty::Region<'tcx>>>> { let tcx = self.tcx; - let param_env = self.param_env; clauses.filter_map(|p| p.as_type_outlives_clause()).filter(move |outlives_predicate| { - super::test_type_match::can_match_erased_ty( - tcx, - param_env, - *outlives_predicate, - erased_ty, - ) + super::test_type_match::can_match_erased_ty(tcx, *outlives_predicate, erased_ty) }) } } diff --git a/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs b/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs index e06596df7b9..b2bcbbf2e53 100644 --- a/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs +++ b/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs @@ -416,8 +416,8 @@ impl<'tcx> MiniGraph<'tcx> { region_constraints.undo_log.region_constraints_in_snapshot(&snapshot.undo_snapshot) { match undo_entry { - AddConstraint(constraint) => { - each_constraint(constraint); + &AddConstraint(i) => { + each_constraint(®ion_constraints.data().constraints[i].0); } &AddVerify(i) => span_bug!( region_constraints.data().verifys[i].origin.span(), @@ -430,8 +430,8 @@ impl<'tcx> MiniGraph<'tcx> { region_constraints .data() .constraints - .keys() - .for_each(|constraint| each_constraint(constraint)); + .iter() + .for_each(|(constraint, _)| each_constraint(constraint)); } } diff --git a/compiler/rustc_infer/src/infer/region_constraints/mod.rs b/compiler/rustc_infer/src/infer/region_constraints/mod.rs index cbd8040c9f1..71adf526097 100644 --- a/compiler/rustc_infer/src/infer/region_constraints/mod.rs +++ b/compiler/rustc_infer/src/infer/region_constraints/mod.rs @@ -20,7 +20,6 @@ use rustc_middle::ty::{ReBound, ReVar}; use rustc_middle::ty::{Region, RegionVid}; use rustc_span::Span; -use std::collections::BTreeMap; use std::ops::Range; use std::{cmp, fmt, mem}; @@ -90,7 +89,7 @@ pub type VarInfos = IndexVec<RegionVid, RegionVariableInfo>; pub struct RegionConstraintData<'tcx> { /// Constraints of the form `A <= B`, where either `A` or `B` can /// be a region variable (or neither, as it happens). - pub constraints: BTreeMap<Constraint<'tcx>, SubregionOrigin<'tcx>>, + pub constraints: Vec<(Constraint<'tcx>, SubregionOrigin<'tcx>)>, /// Constraints of the form `R0 member of [R1, ..., Rn]`, meaning that /// `R0` must be equal to one of the regions `R1..Rn`. These occur @@ -273,7 +272,7 @@ pub(crate) enum UndoLog<'tcx> { AddVar(RegionVid), /// We added the given `constraint`. - AddConstraint(Constraint<'tcx>), + AddConstraint(usize), /// We added the given `verify`. AddVerify(usize), @@ -319,8 +318,9 @@ impl<'tcx> RegionConstraintStorage<'tcx> { self.var_infos.pop().unwrap(); assert_eq!(self.var_infos.len(), vid.index()); } - AddConstraint(ref constraint) => { - self.data.constraints.remove(constraint); + AddConstraint(index) => { + self.data.constraints.pop().unwrap(); + assert_eq!(self.data.constraints.len(), index); } AddVerify(index) => { self.data.verifys.pop(); @@ -443,14 +443,9 @@ impl<'tcx> RegionConstraintCollector<'_, 'tcx> { // cannot add constraints once regions are resolved debug!("RegionConstraintCollector: add_constraint({:?})", constraint); - // never overwrite an existing (constraint, origin) - only insert one if it isn't - // present in the map yet. This prevents origins from outside the snapshot being - // replaced with "less informative" origins e.g., during calls to `can_eq` - let undo_log = &mut self.undo_log; - self.storage.data.constraints.entry(constraint).or_insert_with(|| { - undo_log.push(AddConstraint(constraint)); - origin - }); + let index = self.storage.data.constraints.len(); + self.storage.data.constraints.push((constraint, origin)); + self.undo_log.push(AddConstraint(index)); } fn add_verify(&mut self, verify: Verify<'tcx>) { diff --git a/compiler/rustc_infer/src/infer/relate/combine.rs b/compiler/rustc_infer/src/infer/relate/combine.rs index dfaca3458d6..ee911c43284 100644 --- a/compiler/rustc_infer/src/infer/relate/combine.rs +++ b/compiler/rustc_infer/src/infer/relate/combine.rs @@ -563,6 +563,8 @@ impl<'infcx, 'tcx> CombineFields<'infcx, 'tcx> { } pub trait ObligationEmittingRelation<'tcx>: TypeRelation<'tcx> { + fn param_env(&self) -> ty::ParamEnv<'tcx>; + /// Register obligations that must hold in order for this relation to hold fn register_obligations(&mut self, obligations: PredicateObligations<'tcx>); diff --git a/compiler/rustc_infer/src/infer/relate/equate.rs b/compiler/rustc_infer/src/infer/relate/equate.rs index 9943c638a91..cb62f258373 100644 --- a/compiler/rustc_infer/src/infer/relate/equate.rs +++ b/compiler/rustc_infer/src/infer/relate/equate.rs @@ -33,10 +33,6 @@ impl<'tcx> TypeRelation<'tcx> for Equate<'_, '_, 'tcx> { self.fields.tcx() } - fn param_env(&self) -> ty::ParamEnv<'tcx> { - self.fields.param_env - } - fn a_is_expected(&self) -> bool { self.a_is_expected } @@ -174,6 +170,10 @@ impl<'tcx> TypeRelation<'tcx> for Equate<'_, '_, 'tcx> { } impl<'tcx> ObligationEmittingRelation<'tcx> for Equate<'_, '_, 'tcx> { + fn param_env(&self) -> ty::ParamEnv<'tcx> { + self.fields.param_env + } + fn register_predicates(&mut self, obligations: impl IntoIterator<Item: ty::ToPredicate<'tcx>>) { self.fields.register_predicates(obligations); } diff --git a/compiler/rustc_infer/src/infer/relate/generalize.rs b/compiler/rustc_infer/src/infer/relate/generalize.rs index 66f7b08ee12..665af7381dc 100644 --- a/compiler/rustc_infer/src/infer/relate/generalize.rs +++ b/compiler/rustc_infer/src/infer/relate/generalize.rs @@ -182,10 +182,6 @@ where self.infcx.tcx } - fn param_env(&self) -> ty::ParamEnv<'tcx> { - self.delegate.param_env() - } - fn tag(&self) -> &'static str { "Generalizer" } diff --git a/compiler/rustc_infer/src/infer/relate/glb.rs b/compiler/rustc_infer/src/infer/relate/glb.rs index 6a3413879c4..aa89124301e 100644 --- a/compiler/rustc_infer/src/infer/relate/glb.rs +++ b/compiler/rustc_infer/src/infer/relate/glb.rs @@ -32,10 +32,6 @@ impl<'tcx> TypeRelation<'tcx> for Glb<'_, '_, 'tcx> { self.fields.tcx() } - fn param_env(&self) -> ty::ParamEnv<'tcx> { - self.fields.param_env - } - fn a_is_expected(&self) -> bool { self.a_is_expected } @@ -138,6 +134,10 @@ impl<'combine, 'infcx, 'tcx> LatticeDir<'infcx, 'tcx> for Glb<'combine, 'infcx, } impl<'tcx> ObligationEmittingRelation<'tcx> for Glb<'_, '_, 'tcx> { + fn param_env(&self) -> ty::ParamEnv<'tcx> { + self.fields.param_env + } + fn register_predicates(&mut self, obligations: impl IntoIterator<Item: ty::ToPredicate<'tcx>>) { self.fields.register_predicates(obligations); } diff --git a/compiler/rustc_infer/src/infer/relate/lub.rs b/compiler/rustc_infer/src/infer/relate/lub.rs index 41cd98ed0cf..87d777530c8 100644 --- a/compiler/rustc_infer/src/infer/relate/lub.rs +++ b/compiler/rustc_infer/src/infer/relate/lub.rs @@ -32,10 +32,6 @@ impl<'tcx> TypeRelation<'tcx> for Lub<'_, '_, 'tcx> { self.fields.tcx() } - fn param_env(&self) -> ty::ParamEnv<'tcx> { - self.fields.param_env - } - fn a_is_expected(&self) -> bool { self.a_is_expected } @@ -138,6 +134,10 @@ impl<'combine, 'infcx, 'tcx> LatticeDir<'infcx, 'tcx> for Lub<'combine, 'infcx, } impl<'tcx> ObligationEmittingRelation<'tcx> for Lub<'_, '_, 'tcx> { + fn param_env(&self) -> ty::ParamEnv<'tcx> { + self.fields.param_env + } + fn register_predicates(&mut self, obligations: impl IntoIterator<Item: ty::ToPredicate<'tcx>>) { self.fields.register_predicates(obligations); } diff --git a/compiler/rustc_infer/src/infer/relate/nll.rs b/compiler/rustc_infer/src/infer/relate/nll.rs index afc2a8b2f62..1ef865cfc5f 100644 --- a/compiler/rustc_infer/src/infer/relate/nll.rs +++ b/compiler/rustc_infer/src/infer/relate/nll.rs @@ -431,10 +431,6 @@ where self.infcx.tcx } - fn param_env(&self) -> ty::ParamEnv<'tcx> { - self.delegate.param_env() - } - fn tag(&self) -> &'static str { "nll::subtype" } @@ -670,6 +666,10 @@ impl<'tcx, D> ObligationEmittingRelation<'tcx> for TypeRelating<'_, 'tcx, D> where D: TypeRelatingDelegate<'tcx>, { + fn param_env(&self) -> ty::ParamEnv<'tcx> { + self.delegate.param_env() + } + fn register_predicates(&mut self, obligations: impl IntoIterator<Item: ty::ToPredicate<'tcx>>) { self.delegate.register_obligations( obligations diff --git a/compiler/rustc_infer/src/infer/relate/sub.rs b/compiler/rustc_infer/src/infer/relate/sub.rs index 5a623e48c93..36876acd7c0 100644 --- a/compiler/rustc_infer/src/infer/relate/sub.rs +++ b/compiler/rustc_infer/src/infer/relate/sub.rs @@ -39,10 +39,6 @@ impl<'tcx> TypeRelation<'tcx> for Sub<'_, '_, 'tcx> { self.fields.infcx.tcx } - fn param_env(&self) -> ty::ParamEnv<'tcx> { - self.fields.param_env - } - fn a_is_expected(&self) -> bool { self.a_is_expected } @@ -203,6 +199,10 @@ impl<'tcx> TypeRelation<'tcx> for Sub<'_, '_, 'tcx> { } impl<'tcx> ObligationEmittingRelation<'tcx> for Sub<'_, '_, 'tcx> { + fn param_env(&self) -> ty::ParamEnv<'tcx> { + self.fields.param_env + } + fn register_predicates(&mut self, obligations: impl IntoIterator<Item: ty::ToPredicate<'tcx>>) { self.fields.register_predicates(obligations); } diff --git a/compiler/rustc_infer/src/traits/error_reporting/mod.rs b/compiler/rustc_infer/src/traits/error_reporting/mod.rs index b3cfd843ace..99fb4b33f24 100644 --- a/compiler/rustc_infer/src/traits/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/traits/error_reporting/mod.rs @@ -2,7 +2,7 @@ use super::ObjectSafetyViolation; use crate::infer::InferCtxt; use rustc_data_structures::fx::FxIndexSet; -use rustc_errors::{struct_span_err, DiagnosticBuilder, ErrorGuaranteed, MultiSpan}; +use rustc_errors::{struct_span_err, DiagnosticBuilder, MultiSpan}; use rustc_hir as hir; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_middle::ty::print::with_no_trimmed_paths; @@ -18,7 +18,7 @@ impl<'tcx> InferCtxt<'tcx> { impl_item_def_id: LocalDefId, trait_item_def_id: DefId, requirement: &dyn fmt::Display, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let mut err = struct_span_err!( self.tcx.sess, error_span, @@ -44,7 +44,7 @@ pub fn report_object_safety_error<'tcx>( span: Span, trait_def_id: DefId, violations: &[ObjectSafetyViolation], -) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { +) -> DiagnosticBuilder<'tcx> { let trait_str = tcx.def_path_str(trait_def_id); let trait_span = tcx.hir().get_if_local(trait_def_id).and_then(|node| match node { hir::Node::Item(item) => Some(item.ident.span), diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs index 6527e87d396..6c000380e71 100644 --- a/compiler/rustc_interface/src/interface.rs +++ b/compiler/rustc_interface/src/interface.rs @@ -8,7 +8,7 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_data_structures::stable_hasher::StableHasher; use rustc_data_structures::sync::Lrc; use rustc_errors::registry::Registry; -use rustc_errors::{ErrorGuaranteed, Handler}; +use rustc_errors::{DiagCtxt, ErrorGuaranteed}; use rustc_lint::LintStore; use rustc_middle::ty; use rustc_middle::util::Providers; @@ -18,7 +18,7 @@ use rustc_query_system::query::print_query_stack; use rustc_session::config::{self, Cfg, CheckCfg, ExpectedValues, Input, OutFileName}; use rustc_session::filesearch::sysroot_candidates; use rustc_session::parse::ParseSess; -use rustc_session::{lint, CompilerIO, EarlyErrorHandler, Session}; +use rustc_session::{lint, CompilerIO, EarlyDiagCtxt, Session}; use rustc_span::source_map::FileLoader; use rustc_span::symbol::sym; use rustc_span::FileName; @@ -42,7 +42,7 @@ pub struct Compiler { } /// Converts strings provided as `--cfg [cfgspec]` into a `Cfg`. -pub(crate) fn parse_cfg(handler: &Handler, cfgs: Vec<String>) -> Cfg { +pub(crate) fn parse_cfg(dcx: &DiagCtxt, cfgs: Vec<String>) -> Cfg { cfgs.into_iter() .map(|s| { let sess = ParseSess::with_silent_emitter(Some(format!( @@ -54,12 +54,11 @@ pub(crate) fn parse_cfg(handler: &Handler, cfgs: Vec<String>) -> Cfg { ($reason: expr) => { #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] - handler - .struct_fatal(format!( - concat!("invalid `--cfg` argument: `{}` (", $reason, ")"), - s - )) - .emit(); + dcx.struct_fatal(format!( + concat!("invalid `--cfg` argument: `{}` (", $reason, ")"), + s + )) + .emit(); }; } @@ -101,7 +100,7 @@ pub(crate) fn parse_cfg(handler: &Handler, cfgs: Vec<String>) -> Cfg { } /// Converts strings provided as `--check-cfg [specs]` into a `CheckCfg`. -pub(crate) fn parse_check_cfg(handler: &Handler, specs: Vec<String>) -> CheckCfg { +pub(crate) fn parse_check_cfg(dcx: &DiagCtxt, specs: Vec<String>) -> CheckCfg { // If any --check-cfg is passed then exhaustive_values and exhaustive_names // are enabled by default. let exhaustive_names = !specs.is_empty(); @@ -118,12 +117,11 @@ pub(crate) fn parse_check_cfg(handler: &Handler, specs: Vec<String>) -> CheckCfg ($reason:expr) => { #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] - handler - .struct_fatal(format!( - concat!("invalid `--check-cfg` argument: `{}` (", $reason, ")"), - s - )) - .emit() + dcx.struct_fatal(format!( + concat!("invalid `--check-cfg` argument: `{}` (", $reason, ")"), + s + )) + .emit() }; } @@ -317,8 +315,8 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se rustc_data_structures::sync::set_dyn_thread_safe_mode(config.opts.unstable_opts.threads > 1); // Check jobserver before run_in_thread_pool_with_globals, which call jobserver::acquire_thread - let early_handler = EarlyErrorHandler::new(config.opts.error_format); - early_handler.initialize_checked_jobserver(); + let early_dcx = EarlyDiagCtxt::new(config.opts.error_format); + early_dcx.initialize_checked_jobserver(); util::run_in_thread_pool_with_globals( config.opts.edition, @@ -326,13 +324,13 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se || { crate::callbacks::setup_callbacks(); - let early_handler = EarlyErrorHandler::new(config.opts.error_format); + let early_dcx = EarlyDiagCtxt::new(config.opts.error_format); let codegen_backend = if let Some(make_codegen_backend) = config.make_codegen_backend { make_codegen_backend(&config.opts) } else { util::get_codegen_backend( - &early_handler, + &early_dcx, &config.opts.maybe_sysroot, config.opts.unstable_opts.codegen_backend.as_deref(), ) @@ -349,7 +347,7 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se ) { Ok(bundle) => bundle, Err(e) => { - early_handler.early_error(format!("failed to load fluent bundle: {e}")); + early_dcx.early_fatal(format!("failed to load fluent bundle: {e}")); } }; @@ -360,7 +358,7 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se let target_override = codegen_backend.target_override(&config.opts); let mut sess = rustc_session::build_session( - early_handler, + early_dcx, config.opts, CompilerIO { input: config.input, @@ -382,12 +380,12 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se codegen_backend.init(&sess); - let cfg = parse_cfg(&sess.diagnostic(), config.crate_cfg); + let cfg = parse_cfg(&sess.dcx(), config.crate_cfg); let mut cfg = config::build_configuration(&sess, cfg); util::add_configuration(&mut cfg, &mut sess, &*codegen_backend); sess.parse_sess.config = cfg; - let mut check_cfg = parse_check_cfg(&sess.diagnostic(), config.crate_check_cfg); + let mut check_cfg = parse_check_cfg(&sess.dcx(), config.crate_check_cfg); check_cfg.fill_well_known(&sess.target); sess.parse_sess.check_config = check_cfg; @@ -433,21 +431,21 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se } pub fn try_print_query_stack( - handler: &Handler, + dcx: &DiagCtxt, num_frames: Option<usize>, file: Option<std::fs::File>, ) { eprintln!("query stack during panic:"); // Be careful relying on global state here: this code is called from - // a panic hook, which means that the global `Handler` may be in a weird + // a panic hook, which means that the global `DiagCtxt` may be in a weird // state if it was responsible for triggering the panic. let i = ty::tls::with_context_opt(|icx| { if let Some(icx) = icx { ty::print::with_no_queries!(print_query_stack( QueryCtxt::new(icx.tcx), icx.query, - handler, + dcx, num_frames, file, )) diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs index 9b59ead0463..21beb90d73f 100644 --- a/compiler/rustc_interface/src/passes.rs +++ b/compiler/rustc_interface/src/passes.rs @@ -56,7 +56,7 @@ pub fn parse<'a>(sess: &'a Session) -> PResult<'a, ast::Crate> { } if let Some(ref s) = sess.opts.unstable_opts.show_span { - rustc_ast_passes::show_span::run(sess.diagnostic(), s, &krate); + rustc_ast_passes::show_span::run(sess.dcx(), s, &krate); } if sess.opts.unstable_opts.hir_stats { @@ -267,7 +267,7 @@ fn configure_and_expand( is_proc_macro_crate, has_proc_macro_decls, is_test_crate, - sess.diagnostic(), + sess.dcx(), ) }); @@ -526,7 +526,7 @@ fn write_out_deps(tcx: TyCtxt<'_>, outputs: &OutputFilenames, out_filenames: &[P match result { Ok(_) => { if sess.opts.json_artifact_notifications { - sess.diagnostic().emit_artifact_notification(deps_filename, "dep-info"); + sess.dcx().emit_artifact_notification(deps_filename, "dep-info"); } } Err(error) => { diff --git a/compiler/rustc_interface/src/queries.rs b/compiler/rustc_interface/src/queries.rs index e9611c74a68..8a553b95e8e 100644 --- a/compiler/rustc_interface/src/queries.rs +++ b/compiler/rustc_interface/src/queries.rs @@ -228,7 +228,7 @@ impl<'tcx> Queries<'tcx> { // If we have any delayed bugs, for example because we created TyKind::Error earlier, // it's likely that codegen will only cause more ICEs, obscuring the original problem - self.compiler.sess.diagnostic().flush_delayed(); + self.compiler.sess.dcx().flush_delayed(); // Hook for UI tests. Self::check_for_rustc_errors_attr(tcx); diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index d96b1ba88f5..04a7714d413 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -13,7 +13,7 @@ use rustc_session::config::{ use rustc_session::lint::Level; use rustc_session::search_paths::SearchPath; use rustc_session::utils::{CanonicalizedPath, NativeLib, NativeLibKind}; -use rustc_session::{build_session, getopts, CompilerIO, EarlyErrorHandler, Session}; +use rustc_session::{build_session, getopts, CompilerIO, EarlyDiagCtxt, Session}; use rustc_span::edition::{Edition, DEFAULT_EDITION}; use rustc_span::symbol::sym; use rustc_span::{FileName, SourceFileHashAlgorithm}; @@ -25,11 +25,11 @@ use std::path::{Path, PathBuf}; use std::sync::Arc; fn mk_session(matches: getopts::Matches) -> (Session, Cfg) { - let mut early_handler = EarlyErrorHandler::new(ErrorOutputType::default()); - early_handler.initialize_checked_jobserver(); + let mut early_dcx = EarlyDiagCtxt::new(ErrorOutputType::default()); + early_dcx.initialize_checked_jobserver(); let registry = registry::Registry::new(&[]); - let sessopts = build_session_options(&mut early_handler, &matches); + let sessopts = build_session_options(&mut early_dcx, &matches); let temps_dir = sessopts.unstable_opts.temps_dir.as_deref().map(PathBuf::from); let io = CompilerIO { input: Input::Str { name: FileName::Custom(String::new()), input: String::new() }, @@ -38,7 +38,7 @@ fn mk_session(matches: getopts::Matches) -> (Session, Cfg) { temps_dir, }; let sess = build_session( - early_handler, + early_dcx, sessopts, io, None, @@ -52,7 +52,7 @@ fn mk_session(matches: getopts::Matches) -> (Session, Cfg) { Arc::default(), Default::default(), ); - let cfg = parse_cfg(&sess.diagnostic(), matches.opt_strs("cfg")); + let cfg = parse_cfg(&sess.dcx(), matches.opt_strs("cfg")); (sess, cfg) } @@ -143,20 +143,20 @@ fn test_can_print_warnings() { rustc_span::create_default_session_globals_then(|| { let matches = optgroups().parse(&["-Awarnings".to_string()]).unwrap(); let (sess, _) = mk_session(matches); - assert!(!sess.diagnostic().can_emit_warnings()); + assert!(!sess.dcx().can_emit_warnings()); }); rustc_span::create_default_session_globals_then(|| { let matches = optgroups().parse(&["-Awarnings".to_string(), "-Dwarnings".to_string()]).unwrap(); let (sess, _) = mk_session(matches); - assert!(sess.diagnostic().can_emit_warnings()); + assert!(sess.dcx().can_emit_warnings()); }); rustc_span::create_default_session_globals_then(|| { let matches = optgroups().parse(&["-Adead_code".to_string()]).unwrap(); let (sess, _) = mk_session(matches); - assert!(sess.diagnostic().can_emit_warnings()); + assert!(sess.dcx().can_emit_warnings()); }); } @@ -301,36 +301,36 @@ fn test_search_paths_tracking_hash_different_order() { let mut v3 = Options::default(); let mut v4 = Options::default(); - let handler = EarlyErrorHandler::new(JSON); + let early_dcx = EarlyDiagCtxt::new(JSON); const JSON: ErrorOutputType = ErrorOutputType::Json { pretty: false, json_rendered: HumanReadableErrorType::Default(ColorConfig::Never), }; // Reference - v1.search_paths.push(SearchPath::from_cli_opt(&handler, "native=abc")); - v1.search_paths.push(SearchPath::from_cli_opt(&handler, "crate=def")); - v1.search_paths.push(SearchPath::from_cli_opt(&handler, "dependency=ghi")); - v1.search_paths.push(SearchPath::from_cli_opt(&handler, "framework=jkl")); - v1.search_paths.push(SearchPath::from_cli_opt(&handler, "all=mno")); - - v2.search_paths.push(SearchPath::from_cli_opt(&handler, "native=abc")); - v2.search_paths.push(SearchPath::from_cli_opt(&handler, "dependency=ghi")); - v2.search_paths.push(SearchPath::from_cli_opt(&handler, "crate=def")); - v2.search_paths.push(SearchPath::from_cli_opt(&handler, "framework=jkl")); - v2.search_paths.push(SearchPath::from_cli_opt(&handler, "all=mno")); - - v3.search_paths.push(SearchPath::from_cli_opt(&handler, "crate=def")); - v3.search_paths.push(SearchPath::from_cli_opt(&handler, "framework=jkl")); - v3.search_paths.push(SearchPath::from_cli_opt(&handler, "native=abc")); - v3.search_paths.push(SearchPath::from_cli_opt(&handler, "dependency=ghi")); - v3.search_paths.push(SearchPath::from_cli_opt(&handler, "all=mno")); - - v4.search_paths.push(SearchPath::from_cli_opt(&handler, "all=mno")); - v4.search_paths.push(SearchPath::from_cli_opt(&handler, "native=abc")); - v4.search_paths.push(SearchPath::from_cli_opt(&handler, "crate=def")); - v4.search_paths.push(SearchPath::from_cli_opt(&handler, "dependency=ghi")); - v4.search_paths.push(SearchPath::from_cli_opt(&handler, "framework=jkl")); + v1.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "native=abc")); + v1.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "crate=def")); + v1.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "dependency=ghi")); + v1.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "framework=jkl")); + v1.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "all=mno")); + + v2.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "native=abc")); + v2.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "dependency=ghi")); + v2.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "crate=def")); + v2.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "framework=jkl")); + v2.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "all=mno")); + + v3.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "crate=def")); + v3.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "framework=jkl")); + v3.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "native=abc")); + v3.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "dependency=ghi")); + v3.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "all=mno")); + + v4.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "all=mno")); + v4.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "native=abc")); + v4.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "crate=def")); + v4.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "dependency=ghi")); + v4.search_paths.push(SearchPath::from_cli_opt(&early_dcx, "framework=jkl")); assert_same_hash(&v1, &v2); assert_same_hash(&v1, &v3); @@ -854,9 +854,9 @@ fn test_edition_parsing() { let options = Options::default(); assert!(options.edition == DEFAULT_EDITION); - let mut handler = EarlyErrorHandler::new(ErrorOutputType::default()); + let mut early_dcx = EarlyDiagCtxt::new(ErrorOutputType::default()); let matches = optgroups().parse(&["--edition=2018".to_string()]).unwrap(); - let sessopts = build_session_options(&mut handler, &matches); + let sessopts = build_session_options(&mut early_dcx, &matches); assert!(sessopts.edition == Edition::Edition2018) } diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs index c9c7ffdd937..f230c5b172c 100644 --- a/compiler/rustc_interface/src/util.rs +++ b/compiler/rustc_interface/src/util.rs @@ -14,7 +14,7 @@ use rustc_session::{filesearch, output, Session}; use rustc_span::edit_distance::find_best_match_for_name; use rustc_span::edition::Edition; use rustc_span::symbol::{sym, Symbol}; -use session::EarlyErrorHandler; +use session::EarlyDiagCtxt; use std::env; use std::env::consts::{DLL_PREFIX, DLL_SUFFIX}; use std::mem; @@ -161,16 +161,16 @@ pub(crate) fn run_in_thread_pool_with_globals<F: FnOnce() -> R + Send, R: Send>( }) } -fn load_backend_from_dylib(handler: &EarlyErrorHandler, path: &Path) -> MakeBackendFn { +fn load_backend_from_dylib(early_dcx: &EarlyDiagCtxt, path: &Path) -> MakeBackendFn { let lib = unsafe { Library::new(path) }.unwrap_or_else(|err| { let err = format!("couldn't load codegen backend {path:?}: {err}"); - handler.early_error(err); + early_dcx.early_fatal(err); }); let backend_sym = unsafe { lib.get::<MakeBackendFn>(b"__rustc_codegen_backend") } .unwrap_or_else(|e| { let err = format!("couldn't load codegen backend: {e}"); - handler.early_error(err); + early_dcx.early_fatal(err); }); // Intentionally leak the dynamic library. We can't ever unload it @@ -185,7 +185,7 @@ fn load_backend_from_dylib(handler: &EarlyErrorHandler, path: &Path) -> MakeBack /// /// A name of `None` indicates that the default backend should be used. pub fn get_codegen_backend( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, maybe_sysroot: &Option<PathBuf>, backend_name: Option<&str>, ) -> Box<dyn CodegenBackend> { @@ -196,11 +196,11 @@ pub fn get_codegen_backend( match backend_name.unwrap_or(default_codegen_backend) { filename if filename.contains('.') => { - load_backend_from_dylib(handler, filename.as_ref()) + load_backend_from_dylib(early_dcx, filename.as_ref()) } #[cfg(feature = "llvm")] "llvm" => rustc_codegen_llvm::LlvmCodegenBackend::new, - backend_name => get_codegen_sysroot(handler, maybe_sysroot, backend_name), + backend_name => get_codegen_sysroot(early_dcx, maybe_sysroot, backend_name), } }); @@ -233,7 +233,7 @@ fn get_rustc_path_inner(bin_path: &str) -> Option<PathBuf> { } fn get_codegen_sysroot( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, maybe_sysroot: &Option<PathBuf>, backend_name: &str, ) -> MakeBackendFn { @@ -271,7 +271,7 @@ fn get_codegen_sysroot( "failed to find a `codegen-backends` folder \ in the sysroot candidates:\n* {candidates}" ); - handler.early_error(err); + early_dcx.early_fatal(err); }); info!("probing {} for a codegen backend", sysroot.display()); @@ -282,7 +282,7 @@ fn get_codegen_sysroot( sysroot.display(), e ); - handler.early_error(err); + early_dcx.early_fatal(err); }); let mut file: Option<PathBuf> = None; @@ -310,16 +310,16 @@ fn get_codegen_sysroot( prev.display(), path.display() ); - handler.early_error(err); + early_dcx.early_fatal(err); } file = Some(path.clone()); } match file { - Some(ref s) => load_backend_from_dylib(handler, s), + Some(ref s) => load_backend_from_dylib(early_dcx, s), None => { let err = format!("unsupported builtin codegen backend `{backend_name}`"); - handler.early_error(err); + early_dcx.early_fatal(err); } } } diff --git a/compiler/rustc_lint/src/expect.rs b/compiler/rustc_lint/src/expect.rs index 047a214a8b2..5dcc1bce5ff 100644 --- a/compiler/rustc_lint/src/expect.rs +++ b/compiler/rustc_lint/src/expect.rs @@ -16,7 +16,7 @@ fn check_expectations(tcx: TyCtxt<'_>, tool_filter: Option<Symbol>) { } let lint_expectations = tcx.lint_expectations(()); - let fulfilled_expectations = tcx.sess.diagnostic().steal_fulfilled_expectation_ids(); + let fulfilled_expectations = tcx.sess.dcx().steal_fulfilled_expectation_ids(); tracing::debug!(?lint_expectations, ?fulfilled_expectations); diff --git a/compiler/rustc_lint/src/levels.rs b/compiler/rustc_lint/src/levels.rs index 8c8ff3fc650..6eff2bfe13c 100644 --- a/compiler/rustc_lint/src/levels.rs +++ b/compiler/rustc_lint/src/levels.rs @@ -144,7 +144,7 @@ fn lint_expectations(tcx: TyCtxt<'_>, (): ()) -> Vec<(LintExpectationId, LintExp builder.add_id(hir::CRATE_HIR_ID); tcx.hir().walk_toplevel_module(&mut builder); - tcx.sess.diagnostic().update_unstable_expectation_id(&builder.provider.unstable_to_stable_ids); + tcx.sess.dcx().update_unstable_expectation_id(&builder.provider.unstable_to_stable_ids); builder.provider.expectations } diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs index a4ab5527e3f..0fc24e88b3b 100644 --- a/compiler/rustc_lint/src/lib.rs +++ b/compiler/rustc_lint/src/lib.rs @@ -39,7 +39,6 @@ #![feature(min_specialization)] #![feature(never_type)] #![feature(rustc_attrs)] -#![cfg_attr(bootstrap, feature(trait_upcasting))] #![recursion_limit = "256"] #![deny(rustc::untranslatable_diagnostic)] #![deny(rustc::diagnostic_outside_of_impl)] diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs index 34cdee4ec5c..0386f2ec56c 100644 --- a/compiler/rustc_lint/src/unused.rs +++ b/compiler/rustc_lint/src/unused.rs @@ -852,8 +852,8 @@ trait UnusedDelimLint { (cond, UnusedDelimsCtx::WhileCond, true, Some(left), Some(right), true) } - ForLoop(_, ref cond, ref block, ..) => { - (cond, UnusedDelimsCtx::ForIterExpr, true, None, Some(block.span.lo()), true) + ForLoop { ref iter, ref body, .. } => { + (iter, UnusedDelimsCtx::ForIterExpr, true, None, Some(body.span.lo()), true) } Match(ref head, _) if Self::LINT_EXPR_IN_PATTERN_MATCHING_CTX => { @@ -1085,7 +1085,7 @@ impl EarlyLintPass for UnusedParens { } match e.kind { - ExprKind::Let(ref pat, _, _, _) | ExprKind::ForLoop(ref pat, ..) => { + ExprKind::Let(ref pat, _, _, _) | ExprKind::ForLoop { ref pat, .. } => { self.check_unused_parens_pat(cx, pat, false, false, (true, true)); } // We ignore parens in cases like `if (((let Some(0) = Some(1))))` because we already diff --git a/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp index d61ec0b641c..373bc5cc581 100644 --- a/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp @@ -139,6 +139,9 @@ extern "C" void LLVMRustCoverageWriteMappingToBuffer( RustMappingRegions, NumMappingRegions)) { MappingRegions.emplace_back( fromRust(Region.Count), fromRust(Region.FalseCount), +#if LLVM_VERSION_GE(18, 0) + coverage::CounterMappingRegion::MCDCParameters{}, +#endif Region.FileID, Region.ExpandedFileID, Region.LineStart, Region.ColumnStart, Region.LineEnd, Region.ColumnEnd, fromRust(Region.Kind)); diff --git a/compiler/rustc_macros/src/diagnostics/diagnostic.rs b/compiler/rustc_macros/src/diagnostics/diagnostic.rs index cd61544f69d..027c97330b1 100644 --- a/compiler/rustc_macros/src/diagnostics/diagnostic.rs +++ b/compiler/rustc_macros/src/diagnostics/diagnostic.rs @@ -2,7 +2,7 @@ use std::cell::RefCell; -use crate::diagnostics::diagnostic_builder::{DiagnosticDeriveBuilder, DiagnosticDeriveKind}; +use crate::diagnostics::diagnostic_builder::DiagnosticDeriveKind; use crate::diagnostics::error::{span_err, DiagnosticDeriveError}; use crate::diagnostics::utils::SetOnce; use proc_macro2::TokenStream; @@ -13,32 +13,21 @@ use synstructure::Structure; /// The central struct for constructing the `into_diagnostic` method from an annotated struct. pub(crate) struct DiagnosticDerive<'a> { structure: Structure<'a>, - builder: DiagnosticDeriveBuilder, } impl<'a> DiagnosticDerive<'a> { - pub(crate) fn new(diag: syn::Ident, handler: syn::Ident, structure: Structure<'a>) -> Self { - Self { - builder: DiagnosticDeriveBuilder { - diag, - kind: DiagnosticDeriveKind::Diagnostic { handler }, - }, - structure, - } + pub(crate) fn new(structure: Structure<'a>) -> Self { + Self { structure } } pub(crate) fn into_tokens(self) -> TokenStream { - let DiagnosticDerive { mut structure, mut builder } = self; - + let DiagnosticDerive { mut structure } = self; + let kind = DiagnosticDeriveKind::Diagnostic; let slugs = RefCell::new(Vec::new()); - let implementation = builder.each_variant(&mut structure, |mut builder, variant| { + let implementation = kind.each_variant(&mut structure, |mut builder, variant| { let preamble = builder.preamble(variant); let body = builder.body(variant); - let diag = &builder.parent.diag; - let DiagnosticDeriveKind::Diagnostic { handler } = &builder.parent.kind else { - unreachable!() - }; let init = match builder.slug.value_ref() { None => { span_err(builder.span, "diagnostic slug not specified") @@ -62,7 +51,11 @@ impl<'a> DiagnosticDerive<'a> { Some(slug) => { slugs.borrow_mut().push(slug.clone()); quote! { - let mut #diag = #handler.struct_diagnostic(crate::fluent_generated::#slug); + let mut diag = rustc_errors::DiagnosticBuilder::new( + dcx, + level, + crate::fluent_generated::#slug + ); } } }; @@ -73,15 +66,14 @@ impl<'a> DiagnosticDerive<'a> { #formatting_init #preamble #body - #diag + diag } }); - let DiagnosticDeriveKind::Diagnostic { handler } = &builder.kind else { unreachable!() }; - + // A lifetime of `'a` causes conflicts, but `_sess` is fine. let mut imp = structure.gen_impl(quote! { - gen impl<'__diagnostic_handler_sess, G> - rustc_errors::IntoDiagnostic<'__diagnostic_handler_sess, G> + gen impl<'_sess, G> + rustc_errors::IntoDiagnostic<'_sess, G> for @Self where G: rustc_errors::EmissionGuarantee { @@ -89,9 +81,9 @@ impl<'a> DiagnosticDerive<'a> { #[track_caller] fn into_diagnostic( self, - #handler: &'__diagnostic_handler_sess rustc_errors::Handler - ) -> rustc_errors::DiagnosticBuilder<'__diagnostic_handler_sess, G> { - use rustc_errors::IntoDiagnosticArg; + dcx: &'_sess rustc_errors::DiagCtxt, + level: rustc_errors::Level + ) -> rustc_errors::DiagnosticBuilder<'_sess, G> { #implementation } } @@ -106,36 +98,31 @@ impl<'a> DiagnosticDerive<'a> { /// The central struct for constructing the `decorate_lint` method from an annotated struct. pub(crate) struct LintDiagnosticDerive<'a> { structure: Structure<'a>, - builder: DiagnosticDeriveBuilder, } impl<'a> LintDiagnosticDerive<'a> { - pub(crate) fn new(diag: syn::Ident, structure: Structure<'a>) -> Self { - Self { - builder: DiagnosticDeriveBuilder { diag, kind: DiagnosticDeriveKind::LintDiagnostic }, - structure, - } + pub(crate) fn new(structure: Structure<'a>) -> Self { + Self { structure } } pub(crate) fn into_tokens(self) -> TokenStream { - let LintDiagnosticDerive { mut structure, mut builder } = self; - - let implementation = builder.each_variant(&mut structure, |mut builder, variant| { + let LintDiagnosticDerive { mut structure } = self; + let kind = DiagnosticDeriveKind::LintDiagnostic; + let implementation = kind.each_variant(&mut structure, |mut builder, variant| { let preamble = builder.preamble(variant); let body = builder.body(variant); - let diag = &builder.parent.diag; let formatting_init = &builder.formatting_init; quote! { #preamble #formatting_init #body - #diag + diag } }); let slugs = RefCell::new(Vec::new()); - let msg = builder.each_variant(&mut structure, |mut builder, variant| { + let msg = kind.each_variant(&mut structure, |mut builder, variant| { // Collect the slug by generating the preamble. let _ = builder.preamble(variant); @@ -168,15 +155,13 @@ impl<'a> LintDiagnosticDerive<'a> { } }); - let diag = &builder.diag; let mut imp = structure.gen_impl(quote! { gen impl<'__a> rustc_errors::DecorateLint<'__a, ()> for @Self { #[track_caller] fn decorate_lint<'__b>( self, - #diag: &'__b mut rustc_errors::DiagnosticBuilder<'__a, ()> + diag: &'__b mut rustc_errors::DiagnosticBuilder<'__a, ()> ) { - use rustc_errors::IntoDiagnosticArg; #implementation; } diff --git a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs index 2755a161d91..f3e98d68b60 100644 --- a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs +++ b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs @@ -17,28 +17,18 @@ use synstructure::{BindingInfo, Structure, VariantInfo}; use super::utils::SubdiagnosticVariant; /// What kind of diagnostic is being derived - a fatal/error/warning or a lint? -#[derive(Clone, PartialEq, Eq)] +#[derive(Clone, Copy, PartialEq, Eq)] pub(crate) enum DiagnosticDeriveKind { - Diagnostic { handler: syn::Ident }, + Diagnostic, LintDiagnostic, } -/// Tracks persistent information required for the entire type when building up individual calls to -/// diagnostic methods for generated diagnostic derives - both `Diagnostic` for -/// fatal/errors/warnings and `LintDiagnostic` for lints. -pub(crate) struct DiagnosticDeriveBuilder { - /// The identifier to use for the generated `DiagnosticBuilder` instance. - pub diag: syn::Ident, - /// Kind of diagnostic that should be derived. - pub kind: DiagnosticDeriveKind, -} - /// Tracks persistent information required for a specific variant when building up individual calls /// to diagnostic methods for generated diagnostic derives - both `Diagnostic` for /// fatal/errors/warnings and `LintDiagnostic` for lints. -pub(crate) struct DiagnosticDeriveVariantBuilder<'parent> { - /// The parent builder for the entire type. - pub parent: &'parent DiagnosticDeriveBuilder, +pub(crate) struct DiagnosticDeriveVariantBuilder { + /// The kind for the entire type. + pub kind: DiagnosticDeriveKind, /// Initialization of format strings for code suggestions. pub formatting_init: TokenStream, @@ -59,19 +49,19 @@ pub(crate) struct DiagnosticDeriveVariantBuilder<'parent> { pub code: SpannedOption<()>, } -impl<'a> HasFieldMap for DiagnosticDeriveVariantBuilder<'a> { +impl HasFieldMap for DiagnosticDeriveVariantBuilder { fn get_field_binding(&self, field: &String) -> Option<&TokenStream> { self.field_map.get(field) } } -impl DiagnosticDeriveBuilder { +impl DiagnosticDeriveKind { /// Call `f` for the struct or for each variant of the enum, returning a `TokenStream` with the /// tokens from `f` wrapped in an `match` expression. Emits errors for use of derive on unions /// or attributes on the type itself when input is an enum. - pub(crate) fn each_variant<'s, F>(&mut self, structure: &mut Structure<'s>, f: F) -> TokenStream + pub(crate) fn each_variant<'s, F>(self, structure: &mut Structure<'s>, f: F) -> TokenStream where - F: for<'a, 'v> Fn(DiagnosticDeriveVariantBuilder<'a>, &VariantInfo<'v>) -> TokenStream, + F: for<'v> Fn(DiagnosticDeriveVariantBuilder, &VariantInfo<'v>) -> TokenStream, { let ast = structure.ast(); let span = ast.span().unwrap(); @@ -101,7 +91,7 @@ impl DiagnosticDeriveBuilder { _ => variant.ast().ident.span().unwrap(), }; let builder = DiagnosticDeriveVariantBuilder { - parent: self, + kind: self, span, field_map: build_field_mapping(variant), formatting_init: TokenStream::new(), @@ -119,7 +109,7 @@ impl DiagnosticDeriveBuilder { } } -impl<'a> DiagnosticDeriveVariantBuilder<'a> { +impl DiagnosticDeriveVariantBuilder { /// Generates calls to `code` and similar functions based on the attributes on the type or /// variant. pub(crate) fn preamble(&mut self, variant: &VariantInfo<'_>) -> TokenStream { @@ -184,8 +174,6 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { &mut self, attr: &Attribute, ) -> Result<TokenStream, DiagnosticDeriveError> { - let diag = &self.parent.diag; - // Always allow documentation comments. if is_doc_comment(attr) { return Ok(quote! {}); @@ -223,7 +211,7 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { let code = nested.parse::<syn::LitStr>()?; tokens.extend(quote! { - #diag.code(rustc_errors::DiagnosticId::Error(#code.to_string())); + diag.code(rustc_errors::DiagnosticId::Error(#code.to_string())); }); } else { span_err(path.span().unwrap(), "unknown argument") @@ -257,8 +245,6 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { } fn generate_field_code(&mut self, binding_info: &BindingInfo<'_>) -> TokenStream { - let diag = &self.parent.diag; - let field = binding_info.ast(); let mut field_binding = binding_info.binding.clone(); field_binding.set_span(field.ty.span()); @@ -267,7 +253,7 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { let ident = format_ident!("{}", ident); // strip `r#` prefix, if present quote! { - #diag.set_arg( + diag.set_arg( stringify!(#ident), #field_binding ); @@ -322,8 +308,6 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { info: FieldInfo<'_>, binding: TokenStream, ) -> Result<TokenStream, DiagnosticDeriveError> { - let diag = &self.parent.diag; - let ident = &attr.path().segments.last().unwrap().ident; let name = ident.to_string(); match (&attr.meta, name.as_str()) { @@ -331,12 +315,12 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { // `set_arg` call will not be generated. (Meta::Path(_), "skip_arg") => return Ok(quote! {}), (Meta::Path(_), "primary_span") => { - match self.parent.kind { - DiagnosticDeriveKind::Diagnostic { .. } => { + match self.kind { + DiagnosticDeriveKind::Diagnostic => { report_error_if_not_applied_to_span(attr, &info)?; return Ok(quote! { - #diag.set_span(#binding); + diag.set_span(#binding); }); } DiagnosticDeriveKind::LintDiagnostic => { @@ -348,13 +332,13 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { } (Meta::Path(_), "subdiagnostic") => { if FieldInnerTy::from_type(&info.binding.ast().ty).will_iterate() { - let DiagnosticDeriveKind::Diagnostic { handler } = &self.parent.kind else { + let DiagnosticDeriveKind::Diagnostic = self.kind else { // No eager translation for lints. - return Ok(quote! { #diag.subdiagnostic(#binding); }); + return Ok(quote! { diag.subdiagnostic(#binding); }); }; - return Ok(quote! { #diag.eager_subdiagnostic(#handler, #binding); }); + return Ok(quote! { diag.eager_subdiagnostic(dcx, #binding); }); } else { - return Ok(quote! { #diag.subdiagnostic(#binding); }); + return Ok(quote! { diag.subdiagnostic(#binding); }); } } (Meta::List(meta_list), "subdiagnostic") => { @@ -376,15 +360,15 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { return Ok(quote! {}); } - let handler = match &self.parent.kind { - DiagnosticDeriveKind::Diagnostic { handler } => handler, + match &self.kind { + DiagnosticDeriveKind::Diagnostic => {} DiagnosticDeriveKind::LintDiagnostic => { throw_invalid_attr!(attr, |diag| { diag.help("eager subdiagnostics are not supported on lints") }) } }; - return Ok(quote! { #diag.eager_subdiagnostic(#handler, #binding); }); + return Ok(quote! { diag.eager_subdiagnostic(dcx, #binding); }); } _ => (), } @@ -442,7 +426,7 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { self.formatting_init.extend(code_init); Ok(quote! { - #diag.span_suggestions_with_style( + diag.span_suggestions_with_style( #span_field, crate::fluent_generated::#slug, #code_field, @@ -463,10 +447,9 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { kind: &Ident, fluent_attr_identifier: Path, ) -> TokenStream { - let diag = &self.parent.diag; let fn_name = format_ident!("span_{}", kind); quote! { - #diag.#fn_name( + diag.#fn_name( #field_binding, crate::fluent_generated::#fluent_attr_identifier ); @@ -476,9 +459,8 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { /// Adds a subdiagnostic by generating a `diag.span_$kind` call with the current slug /// and `fluent_attr_identifier`. fn add_subdiagnostic(&self, kind: &Ident, fluent_attr_identifier: Path) -> TokenStream { - let diag = &self.parent.diag; quote! { - #diag.#kind(crate::fluent_generated::#fluent_attr_identifier); + diag.#kind(crate::fluent_generated::#fluent_attr_identifier); } } diff --git a/compiler/rustc_macros/src/diagnostics/mod.rs b/compiler/rustc_macros/src/diagnostics/mod.rs index a536eb3b04e..d3a4e7ba7d1 100644 --- a/compiler/rustc_macros/src/diagnostics/mod.rs +++ b/compiler/rustc_macros/src/diagnostics/mod.rs @@ -6,7 +6,6 @@ mod utils; use diagnostic::{DiagnosticDerive, LintDiagnosticDerive}; use proc_macro2::TokenStream; -use quote::format_ident; use subdiagnostic::SubdiagnosticDeriveBuilder; use synstructure::Structure; @@ -57,7 +56,7 @@ use synstructure::Structure; /// See rustc dev guide for more examples on using the `#[derive(Diagnostic)]`: /// <https://rustc-dev-guide.rust-lang.org/diagnostics/diagnostic-structs.html> pub fn session_diagnostic_derive(s: Structure<'_>) -> TokenStream { - DiagnosticDerive::new(format_ident!("diag"), format_ident!("handler"), s).into_tokens() + DiagnosticDerive::new(s).into_tokens() } /// Implements `#[derive(LintDiagnostic)]`, which allows for lints to be specified as a struct, @@ -103,7 +102,7 @@ pub fn session_diagnostic_derive(s: Structure<'_>) -> TokenStream { /// See rustc dev guide for more examples on using the `#[derive(LintDiagnostic)]`: /// <https://rustc-dev-guide.rust-lang.org/diagnostics/diagnostic-structs.html#reference> pub fn lint_diagnostic_derive(s: Structure<'_>) -> TokenStream { - LintDiagnosticDerive::new(format_ident!("diag"), s).into_tokens() + LintDiagnosticDerive::new(s).into_tokens() } /// Implements `#[derive(Subdiagnostic)]`, which allows for labels, notes, helps and diff --git a/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs b/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs index 0f9e68cdc50..663abecb67c 100644 --- a/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs +++ b/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs @@ -94,7 +94,6 @@ impl SubdiagnosticDeriveBuilder { rustc_errors::SubdiagnosticMessage ) -> rustc_errors::SubdiagnosticMessage, { - use rustc_errors::{Applicability, IntoDiagnosticArg}; #implementation } } diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index 301e3f2620d..972c84b10f4 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -267,7 +267,7 @@ impl CStore { let unused_externs = self.unused_externs.iter().map(|ident| ident.to_ident_string()).collect::<Vec<_>>(); let unused_externs = unused_externs.iter().map(String::as_str).collect::<Vec<&str>>(); - tcx.sess.diagnostic().emit_unused_externs( + tcx.sess.dcx().emit_unused_externs( level, json_unused_externs.is_loud(), &unused_externs, diff --git a/compiler/rustc_metadata/src/errors.rs b/compiler/rustc_metadata/src/errors.rs index edc8d8532d3..e13068cb6f9 100644 --- a/compiler/rustc_metadata/src/errors.rs +++ b/compiler/rustc_metadata/src/errors.rs @@ -3,7 +3,9 @@ use std::{ path::{Path, PathBuf}, }; -use rustc_errors::{error_code, ErrorGuaranteed, IntoDiagnostic}; +use rustc_errors::{ + error_code, DiagCtxt, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, Level, +}; use rustc_macros::Diagnostic; use rustc_session::config; use rustc_span::{sym, Span, Symbol}; @@ -495,12 +497,9 @@ pub(crate) struct MultipleCandidates { pub candidates: Vec<PathBuf>, } -impl IntoDiagnostic<'_> for MultipleCandidates { - fn into_diagnostic( - self, - handler: &'_ rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::metadata_multiple_candidates); +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for MultipleCandidates { + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = DiagnosticBuilder::new(dcx, level, fluent::metadata_multiple_candidates); diag.set_arg("crate_name", self.crate_name); diag.set_arg("flavor", self.flavor); diag.code(error_code!(E0464)); @@ -593,13 +592,10 @@ pub struct InvalidMetadataFiles { pub crate_rejections: Vec<String>, } -impl IntoDiagnostic<'_> for InvalidMetadataFiles { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for InvalidMetadataFiles { #[track_caller] - fn into_diagnostic( - self, - handler: &'_ rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::metadata_invalid_meta_files); + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = DiagnosticBuilder::new(dcx, level, fluent::metadata_invalid_meta_files); diag.set_arg("crate_name", self.crate_name); diag.set_arg("add_info", self.add_info); diag.code(error_code!(E0786)); @@ -623,13 +619,10 @@ pub struct CannotFindCrate { pub is_ui_testing: bool, } -impl IntoDiagnostic<'_> for CannotFindCrate { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for CannotFindCrate { #[track_caller] - fn into_diagnostic( - self, - handler: &'_ rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::metadata_cannot_find_crate); + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = DiagnosticBuilder::new(dcx, level, fluent::metadata_cannot_find_crate); diag.set_arg("crate_name", self.crate_name); diag.set_arg("current_crate", self.current_crate); diag.set_arg("add_info", self.add_info); diff --git a/compiler/rustc_metadata/src/fs.rs b/compiler/rustc_metadata/src/fs.rs index c95ef01faa7..e80afcc482e 100644 --- a/compiler/rustc_metadata/src/fs.rs +++ b/compiler/rustc_metadata/src/fs.rs @@ -91,7 +91,7 @@ pub fn encode_and_write_metadata(tcx: TyCtxt<'_>) -> (EncodedMetadata, bool) { } }; if tcx.sess.opts.json_artifact_notifications { - tcx.sess.diagnostic().emit_artifact_notification(out_filename.as_path(), "metadata"); + tcx.sess.dcx().emit_artifact_notification(out_filename.as_path(), "metadata"); } (filename, None) } else { diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index 24ab4f94d5c..55daf441a75 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -6,13 +6,14 @@ use crate::rmeta::*; use rustc_ast as ast; use rustc_data_structures::captures::Captures; +use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::owned_slice::OwnedSlice; use rustc_data_structures::sync::{AppendOnlyVec, AtomicBool, Lock, Lrc, OnceLock}; use rustc_data_structures::unhash::UnhashMap; use rustc_expand::base::{SyntaxExtension, SyntaxExtensionKind}; use rustc_expand::proc_macro::{AttrProcMacro, BangProcMacro, DeriveProcMacro}; use rustc_hir::def::Res; -use rustc_hir::def_id::{CRATE_DEF_INDEX, LOCAL_CRATE}; +use rustc_hir::def_id::{DefIdMap, CRATE_DEF_INDEX, LOCAL_CRATE}; use rustc_hir::definitions::{DefPath, DefPathData}; use rustc_hir::diagnostic_items::DiagnosticItems; use rustc_index::Idx; @@ -87,8 +88,6 @@ pub(crate) struct CrateMetadata { alloc_decoding_state: AllocDecodingState, /// Caches decoded `DefKey`s. def_key_cache: Lock<FxHashMap<DefIndex, DefKey>>, - /// Caches decoded `DefPathHash`es. - def_path_hash_cache: Lock<FxHashMap<DefIndex, DefPathHash>>, // --- Other significant crate properties --- /// ID of this crate, from the current compilation session's point of view. @@ -1200,7 +1199,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { /// Iterates over the diagnostic items in the given crate. fn get_diagnostic_items(self) -> DiagnosticItems { - let mut id_to_name = FxHashMap::default(); + let mut id_to_name = DefIdMap::default(); let name_to_id = self .root .diagnostic_items @@ -1266,7 +1265,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { } fn cross_crate_inlinable(self, id: DefIndex) -> bool { - self.root.tables.cross_crate_inlinable.get(self, id).unwrap_or(false) + self.root.tables.cross_crate_inlinable.get(self, id) } fn get_fn_has_self_parameter(self, id: DefIndex, sess: &'a Session) -> bool { @@ -1484,20 +1483,16 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { DefPath::make(self.cnum, id, |parent| self.def_key(parent)) } - fn def_path_hash_unlocked( - self, - index: DefIndex, - def_path_hashes: &mut FxHashMap<DefIndex, DefPathHash>, - ) -> DefPathHash { - *def_path_hashes - .entry(index) - .or_insert_with(|| self.root.tables.def_path_hashes.get(self, index)) - } - #[inline] fn def_path_hash(self, index: DefIndex) -> DefPathHash { - let mut def_path_hashes = self.def_path_hash_cache.lock(); - self.def_path_hash_unlocked(index, &mut def_path_hashes) + // This is a hack to workaround the fact that we can't easily encode/decode a Hash64 + // into the FixedSizeEncoding, as Hash64 lacks a Default impl. A future refactor to + // relax the Default restriction will likely fix this. + let fingerprint = Fingerprint::new( + self.root.stable_crate_id.as_u64(), + self.root.tables.def_path_hashes.get(self, index), + ); + DefPathHash::new(self.root.stable_crate_id, fingerprint.split().1) } #[inline] @@ -1676,7 +1671,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { multibyte_chars, non_narrow_chars, normalized_pos, - name_hash, + stable_id, .. } = source_file_to_import; @@ -1721,7 +1716,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { let local_version = sess.source_map().new_imported_source_file( name, src_hash, - name_hash, + stable_id, source_len.to_u32(), self.cnum, lines, @@ -1824,7 +1819,6 @@ impl CrateMetadata { extern_crate: Lock::new(None), hygiene_context: Default::default(), def_key_cache: Default::default(), - def_path_hash_cache: Default::default(), }; // Need `CrateMetadataRef` to decode `DefId`s in simplified types. diff --git a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs index f6cd013d2ef..bb8f4af8e97 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs @@ -241,7 +241,7 @@ provide! { tcx, def_id, other, cdata, rendered_const => { table } asyncness => { table_direct } fn_arg_names => { table } - coroutine_kind => { table } + coroutine_kind => { table_direct } trait_def => { table } deduced_param_attrs => { table } is_type_alias_impl_trait => { diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index ad3fea65e82..411a70f9f1b 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -5,7 +5,7 @@ use rustc_ast::Attribute; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::fx::FxIndexSet; use rustc_data_structures::memmap::{Mmap, MmapMut}; -use rustc_data_structures::stable_hasher::{Hash128, HashStable, StableHasher}; +use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; use rustc_data_structures::sync::{join, par_for_each_in, Lrc}; use rustc_data_structures::temp_dir::MaybeTempDir; use rustc_hir as hir; @@ -26,11 +26,12 @@ use rustc_serialize::{opaque, Decodable, Decoder, Encodable, Encoder}; use rustc_session::config::{CrateType, OptLevel}; use rustc_span::hygiene::HygieneEncodeContext; use rustc_span::symbol::sym; -use rustc_span::{ExternalSource, FileName, SourceFile, SpanData, SyntaxContext}; +use rustc_span::{ + ExternalSource, FileName, SourceFile, SpanData, StableSourceFileId, SyntaxContext, +}; use std::borrow::Borrow; use std::collections::hash_map::Entry; use std::fs::File; -use std::hash::Hash; use std::io::{Read, Seek, Write}; use std::path::{Path, PathBuf}; @@ -467,13 +468,13 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { let def_key = self.lazy(table.def_key(def_index)); let def_path_hash = table.def_path_hash(def_index); self.tables.def_keys.set_some(def_index, def_key); - self.tables.def_path_hashes.set(def_index, def_path_hash); + self.tables.def_path_hashes.set(def_index, def_path_hash.local_hash().as_u64()); } } else { for (def_index, def_key, def_path_hash) in table.enumerated_keys_and_path_hashes() { let def_key = self.lazy(def_key); self.tables.def_keys.set_some(def_index, def_key); - self.tables.def_path_hashes.set(def_index, *def_path_hash); + self.tables.def_path_hashes.set(def_index, def_path_hash.local_hash().as_u64()); } } } @@ -495,6 +496,8 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { let mut adapted = TableBuilder::default(); + let local_crate_stable_id = self.tcx.stable_crate_id(LOCAL_CRATE); + // Only serialize `SourceFile`s that were used during the encoding of a `Span`. // // The order in which we encode source files is important here: the on-disk format for @@ -511,7 +514,9 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { // // At this point we also erase the actual on-disk path and only keep // the remapped version -- as is necessary for reproducible builds. - let mut source_file = match source_file.name { + let mut adapted_source_file = (**source_file).clone(); + + match source_file.name { FileName::Real(ref original_file_name) => { let adapted_file_name = if self.tcx.sess.should_prefer_remapped_for_codegen() { source_map.path_mapping().to_embeddable_absolute_path( @@ -525,22 +530,11 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { ) }; - if adapted_file_name != *original_file_name { - let mut adapted: SourceFile = (**source_file).clone(); - adapted.name = FileName::Real(adapted_file_name); - adapted.name_hash = { - let mut hasher: StableHasher = StableHasher::new(); - adapted.name.hash(&mut hasher); - hasher.finish::<Hash128>() - }; - Lrc::new(adapted) - } else { - // Nothing to adapt - source_file.clone() - } + adapted_source_file.name = FileName::Real(adapted_file_name); + } + _ => { + // expanded code, not from a file } - // expanded code, not from a file - _ => source_file.clone(), }; // We're serializing this `SourceFile` into our crate metadata, @@ -550,12 +544,20 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { // dependencies aren't loaded when we deserialize a proc-macro, // trying to remap the `CrateNum` would fail. if self.is_proc_macro { - Lrc::make_mut(&mut source_file).cnum = LOCAL_CRATE; + adapted_source_file.cnum = LOCAL_CRATE; } + // Update the `StableSourceFileId` to make sure it incorporates the + // id of the current crate. This way it will be unique within the + // crate graph during downstream compilation sessions. + adapted_source_file.stable_id = StableSourceFileId::from_filename_for_export( + &adapted_source_file.name, + local_crate_stable_id, + ); + let on_disk_index: u32 = on_disk_index.try_into().expect("cannot export more than U32_MAX files"); - adapted.set_some(on_disk_index, self.lazy(source_file)); + adapted.set_some(on_disk_index, self.lazy(adapted_source_file)); } adapted.encode(&mut self.opaque) @@ -1428,9 +1430,9 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { } } if def_kind == DefKind::Closure - && let Some(data) = self.tcx.coroutine_kind(def_id) + && let Some(coroutine_kind) = self.tcx.coroutine_kind(def_id) { - record!(self.tables.coroutine_kind[def_id] <- data); + self.tables.coroutine_kind.set(def_id.index, Some(coroutine_kind)); } if let DefKind::Enum | DefKind::Struct | DefKind::Union = def_kind { self.encode_info_for_adt(local_id); @@ -1607,7 +1609,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { record!(self.tables.optimized_mir[def_id.to_def_id()] <- tcx.optimized_mir(def_id)); self.tables .cross_crate_inlinable - .set(def_id.to_def_id().index, Some(self.tcx.cross_crate_inlinable(def_id))); + .set(def_id.to_def_id().index, self.tcx.cross_crate_inlinable(def_id)); record!(self.tables.closure_saved_names_of_captured_variables[def_id.to_def_id()] <- tcx.closure_saved_names_of_captured_variables(def_id)); diff --git a/compiler/rustc_metadata/src/rmeta/mod.rs b/compiler/rustc_metadata/src/rmeta/mod.rs index a8582284898..d496e7494e7 100644 --- a/compiler/rustc_metadata/src/rmeta/mod.rs +++ b/compiler/rustc_metadata/src/rmeta/mod.rs @@ -386,7 +386,12 @@ define_tables! { is_type_alias_impl_trait: Table<DefIndex, bool>, type_alias_is_lazy: Table<DefIndex, bool>, attr_flags: Table<DefIndex, AttrFlags>, - def_path_hashes: Table<DefIndex, DefPathHash>, + // The u64 is the crate-local part of the DefPathHash. All hashes in this crate have the same + // StableCrateId, so we omit encoding those into the table. + // + // Note also that this table is fully populated (no gaps) as every DefIndex should have a + // corresponding DefPathHash. + def_path_hashes: Table<DefIndex, u64>, explicit_item_bounds: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>, inferred_outlives_of: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>, inherent_impls: Table<DefIndex, LazyArray<DefIndex>>, @@ -398,6 +403,7 @@ define_tables! { // That's why the encoded list needs to contain `ModChild` structures describing all the names // individually instead of `DefId`s. module_children_reexports: Table<DefIndex, LazyArray<ModChild>>, + cross_crate_inlinable: Table<DefIndex, bool>, - optional: attributes: Table<DefIndex, LazyArray<ast::Attribute>>, @@ -428,7 +434,6 @@ define_tables! { object_lifetime_default: Table<DefIndex, LazyValue<ObjectLifetimeDefault>>, optimized_mir: Table<DefIndex, LazyValue<mir::Body<'static>>>, mir_for_ctfe: Table<DefIndex, LazyValue<mir::Body<'static>>>, - cross_crate_inlinable: Table<DefIndex, bool>, closure_saved_names_of_captured_variables: Table<DefIndex, LazyValue<IndexVec<FieldIdx, Symbol>>>, mir_coroutine_witnesses: Table<DefIndex, LazyValue<mir::CoroutineLayout<'static>>>, promoted_mir: Table<DefIndex, LazyValue<IndexVec<mir::Promoted, mir::Body<'static>>>>, @@ -443,7 +448,7 @@ define_tables! { rendered_const: Table<DefIndex, LazyValue<String>>, asyncness: Table<DefIndex, ty::Asyncness>, fn_arg_names: Table<DefIndex, LazyArray<Ident>>, - coroutine_kind: Table<DefIndex, LazyValue<hir::CoroutineKind>>, + coroutine_kind: Table<DefIndex, hir::CoroutineKind>, trait_def: Table<DefIndex, LazyValue<ty::TraitDef>>, trait_item_def_id: Table<DefIndex, RawDefId>, expn_that_defined: Table<DefIndex, LazyValue<ExpnId>>, diff --git a/compiler/rustc_metadata/src/rmeta/table.rs b/compiler/rustc_metadata/src/rmeta/table.rs index bf86031c554..916ff469e09 100644 --- a/compiler/rustc_metadata/src/rmeta/table.rs +++ b/compiler/rustc_metadata/src/rmeta/table.rs @@ -1,6 +1,5 @@ use crate::rmeta::*; -use rustc_data_structures::fingerprint::Fingerprint; use rustc_hir::def::CtorOf; use rustc_index::Idx; @@ -44,12 +43,6 @@ impl<T> IsDefault for LazyArray<T> { } } -impl IsDefault for DefPathHash { - fn is_default(&self) -> bool { - self.0 == Fingerprint::ZERO - } -} - impl IsDefault for UnusedGenericParams { fn is_default(&self) -> bool { // UnusedGenericParams encodes the *un*usedness as a bitset. @@ -205,6 +198,21 @@ fixed_size_enum! { } fixed_size_enum! { + hir::CoroutineKind { + ( Coroutine ) + ( Desugared(hir::CoroutineDesugaring::Gen, hir::CoroutineSource::Block) ) + ( Desugared(hir::CoroutineDesugaring::Gen, hir::CoroutineSource::Fn) ) + ( Desugared(hir::CoroutineDesugaring::Gen, hir::CoroutineSource::Closure) ) + ( Desugared(hir::CoroutineDesugaring::Async, hir::CoroutineSource::Block) ) + ( Desugared(hir::CoroutineDesugaring::Async, hir::CoroutineSource::Fn) ) + ( Desugared(hir::CoroutineDesugaring::Async, hir::CoroutineSource::Closure) ) + ( Desugared(hir::CoroutineDesugaring::AsyncGen, hir::CoroutineSource::Block) ) + ( Desugared(hir::CoroutineDesugaring::AsyncGen, hir::CoroutineSource::Fn) ) + ( Desugared(hir::CoroutineDesugaring::AsyncGen, hir::CoroutineSource::Closure) ) + } +} + +fixed_size_enum! { ty::AssocItemContainer { ( TraitContainer ) ( ImplContainer ) @@ -219,22 +227,6 @@ fixed_size_enum! { } } -// We directly encode `DefPathHash` because a `LazyValue` would incur a 25% cost. -impl FixedSizeEncoding for DefPathHash { - type ByteArray = [u8; 16]; - - #[inline] - fn from_bytes(b: &[u8; 16]) -> Self { - DefPathHash(Fingerprint::from_le_bytes(*b)) - } - - #[inline] - fn write_to_bytes(self, b: &mut [u8; 16]) { - debug_assert!(!self.is_default()); - *b = self.0.to_le_bytes(); - } -} - // We directly encode RawDefId because using a `LazyValue` would incur a 50% overhead in the worst case. impl FixedSizeEncoding for Option<RawDefId> { type ByteArray = [u8; 8]; diff --git a/compiler/rustc_middle/src/hir/map/mod.rs b/compiler/rustc_middle/src/hir/map/mod.rs index 598c26de23f..1574f0f1b31 100644 --- a/compiler/rustc_middle/src/hir/map/mod.rs +++ b/compiler/rustc_middle/src/hir/map/mod.rs @@ -1098,7 +1098,7 @@ pub(super) fn crate_hash(tcx: TyCtxt<'_>, _: LocalCrate) -> Svh { .files() .iter() .filter(|source_file| source_file.cnum == LOCAL_CRATE) - .map(|source_file| source_file.name_hash) + .map(|source_file| source_file.stable_id) .collect(); source_file_names.sort_unstable(); @@ -1142,7 +1142,10 @@ pub(super) fn crate_hash(tcx: TyCtxt<'_>, _: LocalCrate) -> Svh { tcx.sess.opts.dep_tracking_hash(true).hash_stable(&mut hcx, &mut stable_hasher); tcx.stable_crate_id(LOCAL_CRATE).hash_stable(&mut hcx, &mut stable_hasher); // Hash visibility information since it does not appear in HIR. - resolutions.visibilities.hash_stable(&mut hcx, &mut stable_hasher); + // FIXME: Figure out how to remove `visibilities_for_hashing` by hashing visibilities on + // the fly in the resolver, storing only their accumulated hash in `ResolverGlobalCtxt`, + // and combining it with other hashes here. + resolutions.visibilities_for_hashing.hash_stable(&mut hcx, &mut stable_hasher); stable_hasher.finish() }); diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs index e048268fad1..3475e582a8f 100644 --- a/compiler/rustc_middle/src/lib.rs +++ b/compiler/rustc_middle/src/lib.rs @@ -49,7 +49,6 @@ #![feature(associated_type_bounds)] #![feature(rustc_attrs)] #![feature(control_flow_enum)] -#![cfg_attr(bootstrap, feature(trait_upcasting))] #![feature(trusted_step)] #![feature(try_blocks)] #![feature(try_reserve_kind)] diff --git a/compiler/rustc_middle/src/lint.rs b/compiler/rustc_middle/src/lint.rs index 4c4f38d1ad8..d34d9160d55 100644 --- a/compiler/rustc_middle/src/lint.rs +++ b/compiler/rustc_middle/src/lint.rs @@ -293,43 +293,33 @@ pub fn struct_lint_level( }, ); - let mut err = match (level, span) { - (Level::Allow, span) => { + // Convert lint level to error level. + let err_level = match level { + Level::Allow => { if has_future_breakage { - if let Some(span) = span { - sess.struct_span_allow(span, "") - } else { - sess.struct_allow("") - } + rustc_errors::Level::Allow } else { return; } } - (Level::Expect(expect_id), _) => { + Level::Expect(expect_id) => { // This case is special as we actually allow the lint itself in this context, but // we can't return early like in the case for `Level::Allow` because we still - // need the lint diagnostic to be emitted to `rustc_error::HandlerInner`. + // need the lint diagnostic to be emitted to `rustc_error::DiagCtxtInner`. // // We can also not mark the lint expectation as fulfilled here right away, as it // can still be cancelled in the decorate function. All of this means that we simply // create a `DiagnosticBuilder` and continue as we would for warnings. - sess.struct_expect("", expect_id) + rustc_errors::Level::Expect(expect_id) } - (Level::ForceWarn(Some(expect_id)), Some(span)) => { - sess.struct_span_warn_with_expectation(span, "", expect_id) - } - (Level::ForceWarn(Some(expect_id)), None) => { - sess.struct_warn_with_expectation("", expect_id) - } - (Level::Warn | Level::ForceWarn(None), Some(span)) => sess.struct_span_warn(span, ""), - (Level::Warn | Level::ForceWarn(None), None) => sess.struct_warn(""), - (Level::Deny | Level::Forbid, Some(span)) => { - let mut builder = sess.diagnostic().struct_err_lint(""); - builder.set_span(span); - builder - } - (Level::Deny | Level::Forbid, None) => sess.diagnostic().struct_err_lint(""), + Level::ForceWarn(Some(expect_id)) => rustc_errors::Level::Warning(Some(expect_id)), + Level::Warn | Level::ForceWarn(None) => rustc_errors::Level::Warning(None), + Level::Deny | Level::Forbid => rustc_errors::Level::Error { lint: true }, }; + let mut err = DiagnosticBuilder::new(sess.dcx(), err_level, ""); + if let Some(span) = span { + err.set_span(span); + } err.set_is_lint(); diff --git a/compiler/rustc_middle/src/mir/interpret/error.rs b/compiler/rustc_middle/src/mir/interpret/error.rs index 41386793987..2cd2fcca9d5 100644 --- a/compiler/rustc_middle/src/mir/interpret/error.rs +++ b/compiler/rustc_middle/src/mir/interpret/error.rs @@ -90,10 +90,7 @@ pub type EvalToConstValueResult<'tcx> = Result<ConstValue<'tcx>, ErrorHandled>; /// This is needed in `thir::pattern::lower_inline_const`. pub type EvalToValTreeResult<'tcx> = Result<Option<ValTree<'tcx>>, ErrorHandled>; -pub fn struct_error<'tcx>( - tcx: TyCtxtAt<'tcx>, - msg: &str, -) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { +pub fn struct_error<'tcx>(tcx: TyCtxtAt<'tcx>, msg: &str) -> DiagnosticBuilder<'tcx> { struct_span_err!(tcx.sess, tcx.span, E0080, "{}", msg) } diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 1e5a7401c6f..5c425fef27e 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -17,7 +17,7 @@ use rustc_data_structures::captures::Captures; use rustc_errors::{DiagnosticArgValue, DiagnosticMessage, ErrorGuaranteed, IntoDiagnosticArg}; use rustc_hir::def::{CtorKind, Namespace}; use rustc_hir::def_id::{DefId, CRATE_DEF_ID}; -use rustc_hir::{self, CoroutineKind, ImplicitSelfKind}; +use rustc_hir::{self, CoroutineDesugaring, CoroutineKind, ImplicitSelfKind}; use rustc_hir::{self as hir, HirId}; use rustc_session::Session; use rustc_target::abi::{FieldIdx, VariantIdx}; diff --git a/compiler/rustc_middle/src/mir/terminator.rs b/compiler/rustc_middle/src/mir/terminator.rs index 98e3a1f604e..e0c9def0379 100644 --- a/compiler/rustc_middle/src/mir/terminator.rs +++ b/compiler/rustc_middle/src/mir/terminator.rs @@ -148,19 +148,23 @@ impl<O> AssertKind<O> { DivisionByZero(_) => "attempt to divide by zero", RemainderByZero(_) => "attempt to calculate the remainder with a divisor of zero", ResumedAfterReturn(CoroutineKind::Coroutine) => "coroutine resumed after completion", - ResumedAfterReturn(CoroutineKind::Async(_)) => "`async fn` resumed after completion", - ResumedAfterReturn(CoroutineKind::AsyncGen(_)) => { + ResumedAfterReturn(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)) => { + "`async fn` resumed after completion" + } + ResumedAfterReturn(CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, _)) => { "`async gen fn` resumed after completion" } - ResumedAfterReturn(CoroutineKind::Gen(_)) => { + ResumedAfterReturn(CoroutineKind::Desugared(CoroutineDesugaring::Gen, _)) => { "`gen fn` should just keep returning `None` after completion" } ResumedAfterPanic(CoroutineKind::Coroutine) => "coroutine resumed after panicking", - ResumedAfterPanic(CoroutineKind::Async(_)) => "`async fn` resumed after panicking", - ResumedAfterPanic(CoroutineKind::AsyncGen(_)) => { + ResumedAfterPanic(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)) => { + "`async fn` resumed after panicking" + } + ResumedAfterPanic(CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, _)) => { "`async gen fn` resumed after panicking" } - ResumedAfterPanic(CoroutineKind::Gen(_)) => { + ResumedAfterPanic(CoroutineKind::Desugared(CoroutineDesugaring::Gen, _)) => { "`gen fn` should just keep returning `None` after panicking" } @@ -249,17 +253,27 @@ impl<O> AssertKind<O> { OverflowNeg(_) => middle_assert_overflow_neg, DivisionByZero(_) => middle_assert_divide_by_zero, RemainderByZero(_) => middle_assert_remainder_by_zero, - ResumedAfterReturn(CoroutineKind::Async(_)) => middle_assert_async_resume_after_return, - ResumedAfterReturn(CoroutineKind::AsyncGen(_)) => todo!(), - ResumedAfterReturn(CoroutineKind::Gen(_)) => { + ResumedAfterReturn(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)) => { + middle_assert_async_resume_after_return + } + ResumedAfterReturn(CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, _)) => { + todo!() + } + ResumedAfterReturn(CoroutineKind::Desugared(CoroutineDesugaring::Gen, _)) => { bug!("gen blocks can be resumed after they return and will keep returning `None`") } ResumedAfterReturn(CoroutineKind::Coroutine) => { middle_assert_coroutine_resume_after_return } - ResumedAfterPanic(CoroutineKind::Async(_)) => middle_assert_async_resume_after_panic, - ResumedAfterPanic(CoroutineKind::AsyncGen(_)) => todo!(), - ResumedAfterPanic(CoroutineKind::Gen(_)) => middle_assert_gen_resume_after_panic, + ResumedAfterPanic(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)) => { + middle_assert_async_resume_after_panic + } + ResumedAfterPanic(CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, _)) => { + todo!() + } + ResumedAfterPanic(CoroutineKind::Desugared(CoroutineDesugaring::Gen, _)) => { + middle_assert_gen_resume_after_panic + } ResumedAfterPanic(CoroutineKind::Coroutine) => { middle_assert_coroutine_resume_after_panic } diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index a69bff6ed8c..3a54f5f6b3d 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -69,7 +69,7 @@ use rustc_hir::def_id::{ CrateNum, DefId, DefIdMap, DefIdSet, LocalDefId, LocalDefIdMap, LocalDefIdSet, LocalModDefId, }; use rustc_hir::lang_items::{LangItem, LanguageItems}; -use rustc_hir::{Crate, ItemLocalId, TraitCandidate}; +use rustc_hir::{Crate, ItemLocalId, ItemLocalMap, TraitCandidate}; use rustc_index::IndexVec; use rustc_query_system::ich::StableHashingContext; use rustc_query_system::query::{try_get_cached, CacheSelector, QueryCache, QueryMode, QueryState}; @@ -1490,7 +1490,7 @@ rustc_queries! { desc { "computing whether impls specialize one another" } } query in_scope_traits_map(_: hir::OwnerId) - -> Option<&'tcx FxHashMap<ItemLocalId, Box<[TraitCandidate]>>> { + -> Option<&'tcx ItemLocalMap<Box<[TraitCandidate]>>> { desc { "getting traits in scope at a block" } } diff --git a/compiler/rustc_middle/src/query/on_disk_cache.rs b/compiler/rustc_middle/src/query/on_disk_cache.rs index f37cfe8b0a1..0577d22d850 100644 --- a/compiler/rustc_middle/src/query/on_disk_cache.rs +++ b/compiler/rustc_middle/src/query/on_disk_cache.rs @@ -1,6 +1,5 @@ use rustc_data_structures::fx::{FxHashMap, FxIndexSet}; use rustc_data_structures::memmap::Mmap; -use rustc_data_structures::stable_hasher::Hash64; use rustc_data_structures::sync::{HashMapExt, Lock, Lrc, RwLock}; use rustc_data_structures::unhash::UnhashMap; use rustc_data_structures::unord::UnordSet; @@ -21,8 +20,10 @@ use rustc_session::Session; use rustc_span::hygiene::{ ExpnId, HygieneDecodeContext, HygieneEncodeContext, SyntaxContext, SyntaxContextData, }; -use rustc_span::source_map::{SourceMap, StableSourceFileId}; -use rustc_span::{BytePos, ExpnData, ExpnHash, Pos, RelativeBytePos, SourceFile, Span}; +use rustc_span::source_map::SourceMap; +use rustc_span::{ + BytePos, ExpnData, ExpnHash, Pos, RelativeBytePos, SourceFile, Span, StableSourceFileId, +}; use rustc_span::{CachingSourceMapView, Symbol}; use std::collections::hash_map::Entry; use std::mem; @@ -133,30 +134,18 @@ impl AbsoluteBytePos { } } -/// An `EncodedSourceFileId` is the same as a `StableSourceFileId` except that -/// the source crate is represented as a [StableCrateId] instead of as a -/// `CrateNum`. This way `EncodedSourceFileId` can be encoded and decoded -/// without any additional context, i.e. with a simple `opaque::Decoder` (which -/// is the only thing available when decoding the cache's [Footer]. #[derive(Encodable, Decodable, Clone, Debug)] struct EncodedSourceFileId { - file_name_hash: Hash64, + stable_source_file_id: StableSourceFileId, stable_crate_id: StableCrateId, } impl EncodedSourceFileId { #[inline] - fn translate(&self, tcx: TyCtxt<'_>) -> StableSourceFileId { - let cnum = tcx.stable_crate_id_to_crate_num(self.stable_crate_id); - StableSourceFileId { file_name_hash: self.file_name_hash, cnum } - } - - #[inline] fn new(tcx: TyCtxt<'_>, file: &SourceFile) -> EncodedSourceFileId { - let source_file_id = StableSourceFileId::new(file); EncodedSourceFileId { - file_name_hash: source_file_id.file_name_hash, - stable_crate_id: tcx.stable_crate_id(source_file_id.cnum), + stable_source_file_id: file.stable_id, + stable_crate_id: tcx.stable_crate_id(file.cnum), } } } @@ -488,7 +477,9 @@ impl<'a, 'tcx> CacheDecoder<'a, 'tcx> { .borrow_mut() .entry(index) .or_insert_with(|| { - let stable_id = file_index_to_stable_id[&index].translate(tcx); + let source_file_id = &file_index_to_stable_id[&index]; + let source_file_cnum = + tcx.stable_crate_id_to_crate_num(source_file_id.stable_crate_id); // If this `SourceFile` is from a foreign crate, then make sure // that we've imported all of the source files from that crate. @@ -499,12 +490,14 @@ impl<'a, 'tcx> CacheDecoder<'a, 'tcx> { // that we will load the source files from that crate during macro // expansion, so we use `import_source_files` to ensure that the foreign // source files are actually imported before we call `source_file_by_stable_id`. - if stable_id.cnum != LOCAL_CRATE { - self.tcx.cstore_untracked().import_source_files(self.tcx.sess, stable_id.cnum); + if source_file_cnum != LOCAL_CRATE { + self.tcx + .cstore_untracked() + .import_source_files(self.tcx.sess, source_file_cnum); } source_map - .source_file_by_stable_id(stable_id) + .source_file_by_stable_id(source_file_id.stable_source_file_id) .expect("failed to lookup `SourceFile` in new context") }) .clone() diff --git a/compiler/rustc_middle/src/traits/select.rs b/compiler/rustc_middle/src/traits/select.rs index e8e2907eb33..734c2b61c07 100644 --- a/compiler/rustc_middle/src/traits/select.rs +++ b/compiler/rustc_middle/src/traits/select.rs @@ -125,10 +125,8 @@ pub enum SelectionCandidate<'tcx> { /// This is a trait matching with a projected type as `Self`, and we found /// an applicable bound in the trait definition. The `usize` is an index - /// into the list returned by `tcx.item_bounds`. The constness is the - /// constness of the bound in the trait. - // FIXME(effects) do we need this constness - ProjectionCandidate(usize, ty::BoundConstness), + /// into the list returned by `tcx.item_bounds`. + ProjectionCandidate(usize), /// Implementation of a `Fn`-family trait by one of the anonymous types /// generated for an `||` expression. @@ -155,7 +153,7 @@ pub enum SelectionCandidate<'tcx> { /// Implementation of a `Fn`-family trait by one of the anonymous /// types generated for a fn pointer type (e.g., `fn(int) -> int`) FnPointerCandidate { - is_const: bool, + fn_host_effect: ty::Const<'tcx>, }, TraitAliasCandidate, diff --git a/compiler/rustc_middle/src/traits/solve.rs b/compiler/rustc_middle/src/traits/solve.rs index 27a1e64a78b..048df367bd6 100644 --- a/compiler/rustc_middle/src/traits/solve.rs +++ b/compiler/rustc_middle/src/traits/solve.rs @@ -233,6 +233,27 @@ impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for PredefinedOpaques<'tcx> { } } +/// Why a specific goal has to be proven. +/// +/// This is necessary as we treat nested goals different depending on +/// their source. +#[derive(Copy, Clone, Debug, PartialEq, Eq)] +pub enum GoalSource { + Misc, + /// We're proving a where-bound of an impl. + /// + /// FIXME(-Znext-solver=coinductive): Explain how and why this + /// changes whether cycles are coinductive. + /// + /// This also impacts whether we erase constraints on overflow. + /// Erasing constraints is generally very useful for perf and also + /// results in better error messages by avoiding spurious errors. + /// We do not erase overflow constraints in `normalizes-to` goals unless + /// they are from an impl where-clause. This is necessary due to + /// backwards compatability, cc trait-system-refactor-initiatitive#70. + ImplWhereBound, +} + #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, HashStable)] pub enum IsNormalizesToHack { Yes, diff --git a/compiler/rustc_middle/src/traits/solve/inspect.rs b/compiler/rustc_middle/src/traits/solve/inspect.rs index 7883cd338be..77d112d0afc 100644 --- a/compiler/rustc_middle/src/traits/solve/inspect.rs +++ b/compiler/rustc_middle/src/traits/solve/inspect.rs @@ -19,8 +19,8 @@ //! [canonicalized]: https://rustc-dev-guide.rust-lang.org/solve/canonicalization.html use super::{ - CandidateSource, Canonical, CanonicalInput, Certainty, Goal, IsNormalizesToHack, NoSolution, - QueryInput, QueryResult, + CandidateSource, Canonical, CanonicalInput, Certainty, Goal, GoalSource, IsNormalizesToHack, + NoSolution, QueryInput, QueryResult, }; use crate::{infer::canonical::CanonicalVarValues, ty}; use format::ProofTreeFormatter; @@ -115,7 +115,7 @@ impl Debug for Probe<'_> { pub enum ProbeStep<'tcx> { /// We added a goal to the `EvalCtxt` which will get proven /// the next time `EvalCtxt::try_evaluate_added_goals` is called. - AddGoal(CanonicalState<'tcx, Goal<'tcx, ty::Predicate<'tcx>>>), + AddGoal(GoalSource, CanonicalState<'tcx, Goal<'tcx, ty::Predicate<'tcx>>>), /// The inside of a `EvalCtxt::try_evaluate_added_goals` call. EvaluateGoals(AddedGoalsEvaluation<'tcx>), /// A call to `probe` while proving the current goal. This is diff --git a/compiler/rustc_middle/src/traits/solve/inspect/format.rs b/compiler/rustc_middle/src/traits/solve/inspect/format.rs index ab9e0283918..4e2207ed523 100644 --- a/compiler/rustc_middle/src/traits/solve/inspect/format.rs +++ b/compiler/rustc_middle/src/traits/solve/inspect/format.rs @@ -123,7 +123,13 @@ impl<'a, 'b> ProofTreeFormatter<'a, 'b> { self.nested(|this| { for step in &probe.steps { match step { - ProbeStep::AddGoal(goal) => writeln!(this.f, "ADDED GOAL: {goal:?}")?, + ProbeStep::AddGoal(source, goal) => { + let source = match source { + GoalSource::Misc => "misc", + GoalSource::ImplWhereBound => "impl where-bound", + }; + writeln!(this.f, "ADDED GOAL ({source}): {goal:?}")? + } ProbeStep::EvaluateGoals(eval) => this.format_added_goals_evaluation(eval)?, ProbeStep::NestedProbe(probe) => this.format_probe(probe)?, ProbeStep::CommitIfOkStart => writeln!(this.f, "COMMIT_IF_OK START")?, diff --git a/compiler/rustc_middle/src/ty/_match.rs b/compiler/rustc_middle/src/ty/_match.rs index 85181720d17..a2794a100f1 100644 --- a/compiler/rustc_middle/src/ty/_match.rs +++ b/compiler/rustc_middle/src/ty/_match.rs @@ -20,12 +20,11 @@ use crate::ty::{self, InferConst, Ty, TyCtxt}; /// affects any type variables or unification state. pub struct MatchAgainstFreshVars<'tcx> { tcx: TyCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, } impl<'tcx> MatchAgainstFreshVars<'tcx> { - pub fn new(tcx: TyCtxt<'tcx>, param_env: ty::ParamEnv<'tcx>) -> MatchAgainstFreshVars<'tcx> { - MatchAgainstFreshVars { tcx, param_env } + pub fn new(tcx: TyCtxt<'tcx>) -> MatchAgainstFreshVars<'tcx> { + MatchAgainstFreshVars { tcx } } } @@ -33,13 +32,11 @@ impl<'tcx> TypeRelation<'tcx> for MatchAgainstFreshVars<'tcx> { fn tag(&self) -> &'static str { "MatchAgainstFreshVars" } + fn tcx(&self) -> TyCtxt<'tcx> { self.tcx } - fn param_env(&self) -> ty::ParamEnv<'tcx> { - self.param_env - } fn a_is_expected(&self) -> bool { true } // irrelevant diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 6a6ed59fabf..655dde1d9c9 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -849,7 +849,10 @@ impl<'tcx> TyCtxt<'tcx> { /// Returns `true` if the node pointed to by `def_id` is a coroutine for an async construct. pub fn coroutine_is_async(self, def_id: DefId) -> bool { - matches!(self.coroutine_kind(def_id), Some(hir::CoroutineKind::Async(_))) + matches!( + self.coroutine_kind(def_id), + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _)) + ) } /// Returns `true` if the node pointed to by `def_id` is a general coroutine that implements `Coroutine`. @@ -860,12 +863,18 @@ impl<'tcx> TyCtxt<'tcx> { /// Returns `true` if the node pointed to by `def_id` is a coroutine for a `gen` construct. pub fn coroutine_is_gen(self, def_id: DefId) -> bool { - matches!(self.coroutine_kind(def_id), Some(hir::CoroutineKind::Gen(_))) + matches!( + self.coroutine_kind(def_id), + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _)) + ) } /// Returns `true` if the node pointed to by `def_id` is a coroutine for a `async gen` construct. pub fn coroutine_is_async_gen(self, def_id: DefId) -> bool { - matches!(self.coroutine_kind(def_id), Some(hir::CoroutineKind::AsyncGen(_))) + matches!( + self.coroutine_kind(def_id), + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _)) + ) } pub fn stability(self) -> &'tcx stability::Index { @@ -1039,17 +1048,34 @@ impl<'tcx> TyCtxtAt<'tcx> { // This is fine because: // - those queries are `eval_always` so we won't miss their result changing; // - this write will have happened before these queries are called. - let data = def_kind.def_path_data(name); - let key = self.untracked.definitions.write().create_def(parent, data); + let def_id = self.tcx.create_def(parent, name, def_kind); - let feed = TyCtxtFeed { tcx: self.tcx, key }; - feed.def_kind(def_kind); + let feed = self.tcx.feed_local_def_id(def_id); feed.def_span(self.span); feed } } impl<'tcx> TyCtxt<'tcx> { + /// `tcx`-dependent operations performed for every created definition. + pub fn create_def(self, parent: LocalDefId, name: Symbol, def_kind: DefKind) -> LocalDefId { + let data = def_kind.def_path_data(name); + let def_id = self.untracked.definitions.write().create_def(parent, data); + + let feed = self.feed_local_def_id(def_id); + feed.def_kind(def_kind); + // Unique types created for closures participate in type privacy checking. + // They have visibilities inherited from the module they are defined in. + // Visibilities for opaque types are meaningless, but still provided + // so that all items have visibilities. + if matches!(def_kind, DefKind::Closure | DefKind::OpaqueTy) { + let parent_mod = self.parent_module_from_def_id(def_id).to_def_id(); + feed.visibility(ty::Visibility::Restricted(parent_mod)); + } + + def_id + } + pub fn iter_local_def_id(self) -> impl Iterator<Item = LocalDefId> + 'tcx { // Create a dependency to the red node to be sure we re-execute this when the amount of // definitions change. diff --git a/compiler/rustc_middle/src/ty/diagnostics.rs b/compiler/rustc_middle/src/ty/diagnostics.rs index 0094825fc70..c1e2479defd 100644 --- a/compiler/rustc_middle/src/ty/diagnostics.rs +++ b/compiler/rustc_middle/src/ty/diagnostics.rs @@ -628,11 +628,3 @@ impl<'tcx> FallibleTypeFolder<TyCtxt<'tcx>> for MakeSuggestableFolder<'tcx> { c.try_super_fold_with(self) } } - -#[derive(Diagnostic)] -#[diag(middle_const_not_used_in_type_alias)] -pub(super) struct ConstNotUsedTraitAlias { - pub ct: String, - #[primary_span] - pub span: Span, -} diff --git a/compiler/rustc_middle/src/ty/inhabitedness/inhabited_predicate.rs b/compiler/rustc_middle/src/ty/inhabitedness/inhabited_predicate.rs index ae17942785f..c571ac50724 100644 --- a/compiler/rustc_middle/src/ty/inhabitedness/inhabited_predicate.rs +++ b/compiler/rustc_middle/src/ty/inhabitedness/inhabited_predicate.rs @@ -1,7 +1,7 @@ use smallvec::SmallVec; use crate::ty::context::TyCtxt; -use crate::ty::{self, DefId, ParamEnv, Ty}; +use crate::ty::{self, DefId, OpaqueTypeKey, ParamEnv, Ty}; /// Represents whether some type is inhabited in a given context. /// Examples of uninhabited types are `!`, `enum Void {}`, or a struct @@ -23,6 +23,8 @@ pub enum InhabitedPredicate<'tcx> { /// Inhabited if some generic type is inhabited. /// These are replaced by calling [`Self::instantiate`]. GenericType(Ty<'tcx>), + /// Inhabited if either we don't know the hidden type or we know it and it is inhabited. + OpaqueType(OpaqueTypeKey<'tcx>), /// A AND B And(&'tcx [InhabitedPredicate<'tcx>; 2]), /// A OR B @@ -30,35 +32,53 @@ pub enum InhabitedPredicate<'tcx> { } impl<'tcx> InhabitedPredicate<'tcx> { - /// Returns true if the corresponding type is inhabited in the given - /// `ParamEnv` and module + /// Returns true if the corresponding type is inhabited in the given `ParamEnv` and module. pub fn apply(self, tcx: TyCtxt<'tcx>, param_env: ParamEnv<'tcx>, module_def_id: DefId) -> bool { - let Ok(result) = self.apply_inner::<!>(tcx, param_env, &mut Default::default(), &|id| { - Ok(tcx.is_descendant_of(module_def_id, id)) - }); + self.apply_revealing_opaque(tcx, param_env, module_def_id, &|_| None) + } + + /// Returns true if the corresponding type is inhabited in the given `ParamEnv` and module, + /// revealing opaques when possible. + pub fn apply_revealing_opaque( + self, + tcx: TyCtxt<'tcx>, + param_env: ParamEnv<'tcx>, + module_def_id: DefId, + reveal_opaque: &impl Fn(OpaqueTypeKey<'tcx>) -> Option<Ty<'tcx>>, + ) -> bool { + let Ok(result) = self.apply_inner::<!>( + tcx, + param_env, + &mut Default::default(), + &|id| Ok(tcx.is_descendant_of(module_def_id, id)), + reveal_opaque, + ); result } /// Same as `apply`, but returns `None` if self contains a module predicate pub fn apply_any_module(self, tcx: TyCtxt<'tcx>, param_env: ParamEnv<'tcx>) -> Option<bool> { - self.apply_inner(tcx, param_env, &mut Default::default(), &|_| Err(())).ok() + self.apply_inner(tcx, param_env, &mut Default::default(), &|_| Err(()), &|_| None).ok() } /// Same as `apply`, but `NotInModule(_)` predicates yield `false`. That is, /// privately uninhabited types are considered always uninhabited. pub fn apply_ignore_module(self, tcx: TyCtxt<'tcx>, param_env: ParamEnv<'tcx>) -> bool { let Ok(result) = - self.apply_inner::<!>(tcx, param_env, &mut Default::default(), &|_| Ok(true)); + self.apply_inner::<!>(tcx, param_env, &mut Default::default(), &|_| Ok(true), &|_| { + None + }); result } - #[instrument(level = "debug", skip(tcx, param_env, in_module), ret)] + #[instrument(level = "debug", skip(tcx, param_env, in_module, reveal_opaque), ret)] fn apply_inner<E: std::fmt::Debug>( self, tcx: TyCtxt<'tcx>, param_env: ParamEnv<'tcx>, eval_stack: &mut SmallVec<[Ty<'tcx>; 1]>, // for cycle detection in_module: &impl Fn(DefId) -> Result<bool, E>, + reveal_opaque: &impl Fn(OpaqueTypeKey<'tcx>) -> Option<Ty<'tcx>>, ) -> Result<bool, E> { match self { Self::False => Ok(false), @@ -84,18 +104,41 @@ impl<'tcx> InhabitedPredicate<'tcx> { return Ok(true); // Recover; this will error later. } eval_stack.push(t); - let ret = pred.apply_inner(tcx, param_env, eval_stack, in_module); + let ret = + pred.apply_inner(tcx, param_env, eval_stack, in_module, reveal_opaque); eval_stack.pop(); ret } } } - Self::And([a, b]) => { - try_and(a, b, |x| x.apply_inner(tcx, param_env, eval_stack, in_module)) - } - Self::Or([a, b]) => { - try_or(a, b, |x| x.apply_inner(tcx, param_env, eval_stack, in_module)) - } + Self::OpaqueType(key) => match reveal_opaque(key) { + // Unknown opaque is assumed inhabited. + None => Ok(true), + // Known opaque type is inspected recursively. + Some(t) => { + // A cyclic opaque type can happen in corner cases that would only error later. + // See e.g. `tests/ui/type-alias-impl-trait/recursive-tait-conflicting-defn.rs`. + if eval_stack.contains(&t) { + return Ok(true); // Recover; this will error later. + } + eval_stack.push(t); + let ret = t.inhabited_predicate(tcx).apply_inner( + tcx, + param_env, + eval_stack, + in_module, + reveal_opaque, + ); + eval_stack.pop(); + ret + } + }, + Self::And([a, b]) => try_and(a, b, |x| { + x.apply_inner(tcx, param_env, eval_stack, in_module, reveal_opaque) + }), + Self::Or([a, b]) => try_or(a, b, |x| { + x.apply_inner(tcx, param_env, eval_stack, in_module, reveal_opaque) + }), } } diff --git a/compiler/rustc_middle/src/ty/inhabitedness/mod.rs b/compiler/rustc_middle/src/ty/inhabitedness/mod.rs index d67fb9fd0b7..bbcc244cb26 100644 --- a/compiler/rustc_middle/src/ty/inhabitedness/mod.rs +++ b/compiler/rustc_middle/src/ty/inhabitedness/mod.rs @@ -45,7 +45,7 @@ use crate::query::Providers; use crate::ty::context::TyCtxt; -use crate::ty::{self, DefId, Ty, VariantDef, Visibility}; +use crate::ty::{self, DefId, Ty, TypeVisitableExt, VariantDef, Visibility}; use rustc_type_ir::TyKind::*; @@ -105,6 +105,7 @@ impl<'tcx> VariantDef { impl<'tcx> Ty<'tcx> { #[instrument(level = "debug", skip(tcx), ret)] pub fn inhabited_predicate(self, tcx: TyCtxt<'tcx>) -> InhabitedPredicate<'tcx> { + debug_assert!(!self.has_infer()); match self.kind() { // For now, unions are always considered inhabited Adt(adt, _) if adt.is_union() => InhabitedPredicate::True, @@ -113,7 +114,18 @@ impl<'tcx> Ty<'tcx> { InhabitedPredicate::True } Never => InhabitedPredicate::False, - Param(_) | Alias(ty::Projection, _) => InhabitedPredicate::GenericType(self), + Param(_) | Alias(ty::Projection | ty::Weak, _) => InhabitedPredicate::GenericType(self), + Alias(ty::Opaque, alias_ty) => { + match alias_ty.def_id.as_local() { + // Foreign opaque is considered inhabited. + None => InhabitedPredicate::True, + // Local opaque type may possibly be revealed. + Some(local_def_id) => { + let key = ty::OpaqueTypeKey { def_id: local_def_id, args: alias_ty.args }; + InhabitedPredicate::OpaqueType(key) + } + } + } // FIXME(inherent_associated_types): Most likely we can just map to `GenericType` like above. // However it's unclear if the args passed to `InhabitedPredicate::instantiate` are of the correct // format, i.e. don't contain parent args. If you hit this case, please verify this beforehand. diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index 5fcdd5d4d2e..5ae758edfa3 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -5,7 +5,8 @@ use crate::ty::normalize_erasing_regions::NormalizationError; use crate::ty::{self, ConstKind, Ty, TyCtxt, TypeVisitableExt}; use rustc_error_messages::DiagnosticMessage; use rustc_errors::{ - DiagnosticArgValue, DiagnosticBuilder, Handler, IntoDiagnostic, IntoDiagnosticArg, + DiagCtxt, DiagnosticArgValue, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, + IntoDiagnosticArg, Level, }; use rustc_hir as hir; use rustc_hir::def_id::DefId; @@ -1272,14 +1273,14 @@ pub enum FnAbiError<'tcx> { AdjustForForeignAbi(call::AdjustForForeignAbiError), } -impl<'a, 'b> IntoDiagnostic<'a, !> for FnAbiError<'b> { - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, !> { +impl<'a, 'b, G: EmissionGuarantee> IntoDiagnostic<'a, G> for FnAbiError<'b> { + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { match self { - Self::Layout(e) => e.into_diagnostic().into_diagnostic(handler), + Self::Layout(e) => e.into_diagnostic().into_diagnostic(dcx, level), Self::AdjustForForeignAbi(call::AdjustForForeignAbiError::Unsupported { arch, abi, - }) => UnsupportedFnAbi { arch, abi: abi.name() }.into_diagnostic(handler), + }) => UnsupportedFnAbi { arch, abi: abi.name() }.into_diagnostic(dcx, level), } } } diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index febab23ea35..36b8d387d69 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -152,7 +152,7 @@ pub struct ResolverOutputs { #[derive(Debug)] pub struct ResolverGlobalCtxt { - pub visibilities: FxHashMap<LocalDefId, Visibility>, + pub visibilities_for_hashing: Vec<(LocalDefId, Visibility)>, /// Item with a given `LocalDefId` was defined during macro expansion with ID `ExpnId`. pub expn_that_defined: FxHashMap<LocalDefId, ExpnId>, pub effective_visibilities: EffectiveVisibilities, @@ -192,7 +192,7 @@ pub struct ResolverAstLowering { pub next_node_id: ast::NodeId, - pub node_id_to_def_id: FxHashMap<ast::NodeId, LocalDefId>, + pub node_id_to_def_id: NodeMap<LocalDefId>, pub def_id_to_node_id: IndexVec<LocalDefId, ast::NodeId>, pub trait_map: NodeMap<Vec<hir::TraitCandidate>>, @@ -1481,10 +1481,10 @@ impl<'tcx> OpaqueHiddenType<'tcx> { other: &Self, opaque_def_id: LocalDefId, tcx: TyCtxt<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { if let Some(diag) = tcx .sess - .diagnostic() + .dcx() .steal_diagnostic(tcx.def_span(opaque_def_id), StashKey::OpaqueHiddenTypeMismatch) { diag.cancel(); diff --git a/compiler/rustc_middle/src/ty/relate.rs b/compiler/rustc_middle/src/ty/relate.rs index d7d9afc30e7..9d92f81db0b 100644 --- a/compiler/rustc_middle/src/ty/relate.rs +++ b/compiler/rustc_middle/src/ty/relate.rs @@ -23,8 +23,6 @@ pub enum Cause { pub trait TypeRelation<'tcx>: Sized { fn tcx(&self) -> TyCtxt<'tcx>; - fn param_env(&self) -> ty::ParamEnv<'tcx>; - /// Returns a static string we can use for printouts. fn tag(&self) -> &'static str; @@ -505,13 +503,9 @@ pub fn structurally_relate_tys<'tcx, R: TypeRelation<'tcx>>( Err(err) => { // Check whether the lengths are both concrete/known values, // but are unequal, for better diagnostics. - // - // It might seem dubious to eagerly evaluate these constants here, - // we however cannot end up with errors in `Relate` during both - // `type_of` and `predicates_of`. This means that evaluating the - // constants should not cause cycle errors here. - let sz_a = sz_a.try_eval_target_usize(tcx, relation.param_env()); - let sz_b = sz_b.try_eval_target_usize(tcx, relation.param_env()); + let sz_a = sz_a.try_to_target_usize(tcx); + let sz_b = sz_b.try_to_target_usize(tcx); + match (sz_a, sz_b) { (Some(sz_a_val), Some(sz_b_val)) if sz_a_val != sz_b_val => Err( TypeError::FixedArraySize(expected_found(relation, sz_a_val, sz_b_val)), diff --git a/compiler/rustc_middle/src/ty/util.rs b/compiler/rustc_middle/src/ty/util.rs index 8b2b76764e6..ab2488f2e91 100644 --- a/compiler/rustc_middle/src/ty/util.rs +++ b/compiler/rustc_middle/src/ty/util.rs @@ -728,10 +728,16 @@ impl<'tcx> TyCtxt<'tcx> { DefKind::AssocFn if self.associated_item(def_id).fn_has_self_parameter => "method", DefKind::Closure if let Some(coroutine_kind) = self.coroutine_kind(def_id) => { match coroutine_kind { - rustc_hir::CoroutineKind::Async(..) => "async closure", - rustc_hir::CoroutineKind::AsyncGen(..) => "async gen closure", - rustc_hir::CoroutineKind::Coroutine => "coroutine", - rustc_hir::CoroutineKind::Gen(..) => "gen closure", + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _) => { + "async closure" + } + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _) => { + "async gen closure" + } + hir::CoroutineKind::Coroutine => "coroutine", + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _) => { + "gen closure" + } } } _ => def_kind.descr(def_id), @@ -749,10 +755,10 @@ impl<'tcx> TyCtxt<'tcx> { DefKind::AssocFn if self.associated_item(def_id).fn_has_self_parameter => "a", DefKind::Closure if let Some(coroutine_kind) = self.coroutine_kind(def_id) => { match coroutine_kind { - rustc_hir::CoroutineKind::Async(..) => "an", - rustc_hir::CoroutineKind::AsyncGen(..) => "an", - rustc_hir::CoroutineKind::Coroutine => "a", - rustc_hir::CoroutineKind::Gen(..) => "a", + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, ..) => "an", + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, ..) => "an", + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, ..) => "a", + hir::CoroutineKind::Coroutine => "a", } } _ => def_kind.article(), diff --git a/compiler/rustc_middle/src/util/bug.rs b/compiler/rustc_middle/src/util/bug.rs index 21c1a93fde8..5c9dd18aeac 100644 --- a/compiler/rustc_middle/src/util/bug.rs +++ b/compiler/rustc_middle/src/util/bug.rs @@ -31,8 +31,8 @@ fn opt_span_bug_fmt<S: Into<MultiSpan>>( tls::with_opt(move |tcx| { let msg = format!("{location}: {args}"); match (tcx, span) { - (Some(tcx), Some(span)) => tcx.sess.diagnostic().span_bug(span, msg), - (Some(tcx), None) => tcx.sess.diagnostic().bug(msg), + (Some(tcx), Some(span)) => tcx.sess.dcx().span_bug(span, msg), + (Some(tcx), None) => tcx.sess.dcx().bug(msg), (None, _) => panic_any(msg), } }) diff --git a/compiler/rustc_mir_build/src/build/block.rs b/compiler/rustc_mir_build/src/build/block.rs index 8cad6976c0d..4046122b6fe 100644 --- a/compiler/rustc_mir_build/src/build/block.rs +++ b/compiler/rustc_mir_build/src/build/block.rs @@ -15,7 +15,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ) -> BlockAnd<()> { let Block { region_scope, span, ref stmts, expr, targeted_by_break, safety_mode } = self.thir[ast_block]; - let expr = expr.map(|expr| &self.thir[expr]); self.in_scope((region_scope, source_info), LintLevel::Inherited, move |this| { if targeted_by_break { this.in_breakable_scope(None, destination, span, |this| { @@ -49,7 +48,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { mut block: BasicBlock, span: Span, stmts: &[StmtId], - expr: Option<&Expr<'tcx>>, + expr: Option<ExprId>, safety_mode: BlockSafety, region_scope: Scope, ) -> BlockAnd<()> { @@ -90,7 +89,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let si = (*scope, source_info); unpack!( block = this.in_scope(si, LintLevel::Inherited, |this| { - this.stmt_expr(block, &this.thir[*expr], Some(*scope)) + this.stmt_expr(block, *expr, Some(*scope)) }) ); } @@ -205,8 +204,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let visibility_scope = Some(this.new_source_scope(remainder_span, LintLevel::Inherited, None)); - let init = &this.thir[*initializer]; - let initializer_span = init.span; + let initializer_span = this.thir[*initializer].span; let scope = (*init_scope, source_info); let failure = unpack!( block = this.in_scope(scope, *lint_level, |this| { @@ -232,7 +230,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ); this.ast_let_else( block, - init, + *initializer, initializer_span, *else_block, &last_remainder_scope, @@ -276,9 +274,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { Some(this.new_source_scope(remainder_span, LintLevel::Inherited, None)); // Evaluate the initializer, if present. - if let Some(init) = initializer { - let init = &this.thir[*init]; - let initializer_span = init.span; + if let Some(init) = *initializer { + let initializer_span = this.thir[init].span; let scope = (*init_scope, source_info); unpack!( @@ -334,13 +331,14 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // of the block, which is stored into `destination`. let tcx = this.tcx; let destination_ty = destination.ty(&this.local_decls, tcx).ty; - if let Some(expr) = expr { + if let Some(expr_id) = expr { + let expr = &this.thir[expr_id]; let tail_result_is_ignored = destination_ty.is_unit() || this.block_context.currently_ignores_tail_results(); this.block_context .push(BlockFrame::TailExpr { tail_result_is_ignored, span: expr.span }); - unpack!(block = this.expr_into_dest(destination, block, expr)); + unpack!(block = this.expr_into_dest(destination, block, expr_id)); let popped = this.block_context.pop(); assert!(popped.is_some_and(|bf| bf.is_tail_expr())); diff --git a/compiler/rustc_mir_build/src/build/custom/mod.rs b/compiler/rustc_mir_build/src/build/custom/mod.rs index 8c68a58d406..ead20539e25 100644 --- a/compiler/rustc_mir_build/src/build/custom/mod.rs +++ b/compiler/rustc_mir_build/src/build/custom/mod.rs @@ -92,7 +92,7 @@ pub(super) fn build_custom_mir<'tcx>( pctxt.parse_body(expr)?; }; if let Err(err) = res { - tcx.sess.diagnostic().span_fatal( + tcx.sess.dcx().span_fatal( err.span, format!("Could not parse {}, found: {:?}", err.expected, err.item_description), ) diff --git a/compiler/rustc_mir_build/src/build/expr/as_operand.rs b/compiler/rustc_mir_build/src/build/expr/as_operand.rs index 744111edb84..076ee7f85ff 100644 --- a/compiler/rustc_mir_build/src/build/expr/as_operand.rs +++ b/compiler/rustc_mir_build/src/build/expr/as_operand.rs @@ -17,10 +17,10 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn as_local_operand( &mut self, block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<Operand<'tcx>> { let local_scope = self.local_scope(); - self.as_operand(block, Some(local_scope), expr, LocalInfo::Boring, NeedsTemporary::Maybe) + self.as_operand(block, Some(local_scope), expr_id, LocalInfo::Boring, NeedsTemporary::Maybe) } /// Returns an operand suitable for use until the end of the current scope expression and @@ -76,7 +76,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn as_local_call_operand( &mut self, block: BasicBlock, - expr: &Expr<'tcx>, + expr: ExprId, ) -> BlockAnd<Operand<'tcx>> { let local_scope = self.local_scope(); self.as_call_operand(block, Some(local_scope), expr) @@ -101,17 +101,18 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { &mut self, mut block: BasicBlock, scope: Option<region::Scope>, - expr: &Expr<'tcx>, + expr_id: ExprId, local_info: LocalInfo<'tcx>, needs_temporary: NeedsTemporary, ) -> BlockAnd<Operand<'tcx>> { let this = self; + let expr = &this.thir[expr_id]; if let ExprKind::Scope { region_scope, lint_level, value } = expr.kind { let source_info = this.source_info(expr.span); let region_scope = (region_scope, source_info); return this.in_scope(region_scope, lint_level, |this| { - this.as_operand(block, scope, &this.thir[value], local_info, needs_temporary) + this.as_operand(block, scope, value, local_info, needs_temporary) }); } @@ -126,7 +127,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block.and(Operand::Constant(Box::new(constant))) } Category::Constant | Category::Place | Category::Rvalue(..) => { - let operand = unpack!(block = this.as_temp(block, scope, expr, Mutability::Mut)); + let operand = unpack!(block = this.as_temp(block, scope, expr_id, Mutability::Mut)); // Overwrite temp local info if we have something more interesting to record. if !matches!(local_info, LocalInfo::Boring) { let decl_info = @@ -144,16 +145,17 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { &mut self, mut block: BasicBlock, scope: Option<region::Scope>, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<Operand<'tcx>> { - debug!("as_call_operand(block={:?}, expr={:?})", block, expr); let this = self; + let expr = &this.thir[expr_id]; + debug!("as_call_operand(block={:?}, expr={:?})", block, expr); if let ExprKind::Scope { region_scope, lint_level, value } = expr.kind { let source_info = this.source_info(expr.span); let region_scope = (region_scope, source_info); return this.in_scope(region_scope, lint_level, |this| { - this.as_call_operand(block, scope, &this.thir[value]) + this.as_call_operand(block, scope, value) }); } @@ -171,9 +173,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // type, and that value is coming from the deref of a box. if let ExprKind::Deref { arg } = expr.kind { // Generate let tmp0 = arg0 - let operand = unpack!( - block = this.as_temp(block, scope, &this.thir[arg], Mutability::Mut) - ); + let operand = unpack!(block = this.as_temp(block, scope, arg, Mutability::Mut)); // Return the operand *tmp0 to be used as the call argument let place = Place { @@ -186,6 +186,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } } - this.as_operand(block, scope, expr, LocalInfo::Boring, NeedsTemporary::Maybe) + this.as_operand(block, scope, expr_id, LocalInfo::Boring, NeedsTemporary::Maybe) } } diff --git a/compiler/rustc_mir_build/src/build/expr/as_place.rs b/compiler/rustc_mir_build/src/build/expr/as_place.rs index 43e8348903e..f12e25db6fc 100644 --- a/compiler/rustc_mir_build/src/build/expr/as_place.rs +++ b/compiler/rustc_mir_build/src/build/expr/as_place.rs @@ -354,9 +354,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn as_place( &mut self, mut block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<Place<'tcx>> { - let place_builder = unpack!(block = self.as_place_builder(block, expr)); + let place_builder = unpack!(block = self.as_place_builder(block, expr_id)); block.and(place_builder.to_place(self)) } @@ -365,9 +365,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn as_place_builder( &mut self, block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<PlaceBuilder<'tcx>> { - self.expr_as_place(block, expr, Mutability::Mut, None) + self.expr_as_place(block, expr_id, Mutability::Mut, None) } /// Compile `expr`, yielding a place that we can move from etc. @@ -378,9 +378,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn as_read_only_place( &mut self, mut block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<Place<'tcx>> { - let place_builder = unpack!(block = self.as_read_only_place_builder(block, expr)); + let place_builder = unpack!(block = self.as_read_only_place_builder(block, expr_id)); block.and(place_builder.to_place(self)) } @@ -393,18 +393,19 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { fn as_read_only_place_builder( &mut self, block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<PlaceBuilder<'tcx>> { - self.expr_as_place(block, expr, Mutability::Not, None) + self.expr_as_place(block, expr_id, Mutability::Not, None) } fn expr_as_place( &mut self, mut block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, mutability: Mutability, fake_borrow_temps: Option<&mut Vec<Local>>, ) -> BlockAnd<PlaceBuilder<'tcx>> { + let expr = &self.thir[expr_id]; debug!("expr_as_place(block={:?}, expr={:?}, mutability={:?})", block, expr, mutability); let this = self; @@ -413,14 +414,14 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { match expr.kind { ExprKind::Scope { region_scope, lint_level, value } => { this.in_scope((region_scope, source_info), lint_level, |this| { - this.expr_as_place(block, &this.thir[value], mutability, fake_borrow_temps) + this.expr_as_place(block, value, mutability, fake_borrow_temps) }) } ExprKind::Field { lhs, variant_index, name } => { - let lhs = &this.thir[lhs]; + let lhs_expr = &this.thir[lhs]; let mut place_builder = unpack!(block = this.expr_as_place(block, lhs, mutability, fake_borrow_temps,)); - if let ty::Adt(adt_def, _) = lhs.ty.kind() { + if let ty::Adt(adt_def, _) = lhs_expr.ty.kind() { if adt_def.is_enum() { place_builder = place_builder.downcast(*adt_def, variant_index); } @@ -428,16 +429,14 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block.and(place_builder.field(name, expr.ty)) } ExprKind::Deref { arg } => { - let place_builder = unpack!( - block = - this.expr_as_place(block, &this.thir[arg], mutability, fake_borrow_temps,) - ); + let place_builder = + unpack!(block = this.expr_as_place(block, arg, mutability, fake_borrow_temps,)); block.and(place_builder.deref()) } ExprKind::Index { lhs, index } => this.lower_index_expression( block, - &this.thir[lhs], - &this.thir[index], + lhs, + index, mutability, fake_borrow_temps, expr.temp_lifetime, @@ -461,12 +460,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ExprKind::PlaceTypeAscription { source, ref user_ty } => { let place_builder = unpack!( - block = this.expr_as_place( - block, - &this.thir[source], - mutability, - fake_borrow_temps, - ) + block = this.expr_as_place(block, source, mutability, fake_borrow_temps,) ); if let Some(user_ty) = user_ty { let annotation_index = @@ -494,9 +488,10 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block.and(place_builder) } ExprKind::ValueTypeAscription { source, ref user_ty } => { - let source = &this.thir[source]; - let temp = - unpack!(block = this.as_temp(block, source.temp_lifetime, source, mutability)); + let source_expr = &this.thir[source]; + let temp = unpack!( + block = this.as_temp(block, source_expr.temp_lifetime, source, mutability) + ); if let Some(user_ty) = user_ty { let annotation_index = this.canonical_user_type_annotations.push(CanonicalUserTypeAnnotation { @@ -562,7 +557,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // these are not places, so we need to make a temporary. debug_assert!(!matches!(Category::of(&expr.kind), Some(Category::Place))); let temp = - unpack!(block = this.as_temp(block, expr.temp_lifetime, expr, mutability)); + unpack!(block = this.as_temp(block, expr.temp_lifetime, expr_id, mutability)); block.and(PlaceBuilder::from(temp)) } } @@ -591,8 +586,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { fn lower_index_expression( &mut self, mut block: BasicBlock, - base: &Expr<'tcx>, - index: &Expr<'tcx>, + base: ExprId, + index: ExprId, mutability: Mutability, fake_borrow_temps: Option<&mut Vec<Local>>, temp_lifetime: Option<region::Scope>, @@ -609,7 +604,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // Making this a *fresh* temporary means we do not have to worry about // the index changing later: Nothing will ever change this temporary. // The "retagging" transformation (for Stacked Borrows) relies on this. - let idx = unpack!(block = self.as_temp(block, temp_lifetime, index, Mutability::Not,)); + let idx = unpack!(block = self.as_temp(block, temp_lifetime, index, Mutability::Not)); block = self.bounds_check(block, &base_place, idx, expr_span, source_info); diff --git a/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs b/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs index a5f6bb12ee4..04dcc6854c7 100644 --- a/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs +++ b/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs @@ -27,10 +27,10 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn as_local_rvalue( &mut self, block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<Rvalue<'tcx>> { let local_scope = self.local_scope(); - self.as_rvalue(block, Some(local_scope), expr) + self.as_rvalue(block, Some(local_scope), expr_id) } /// Compile `expr`, yielding an rvalue. @@ -38,11 +38,12 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { &mut self, mut block: BasicBlock, scope: Option<region::Scope>, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<Rvalue<'tcx>> { + let this = self; + let expr = &this.thir[expr_id]; debug!("expr_as_rvalue(block={:?}, scope={:?}, expr={:?})", block, scope, expr); - let this = self; let expr_span = expr.span; let source_info = this.source_info(expr_span); @@ -50,9 +51,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ExprKind::ThreadLocalRef(did) => block.and(Rvalue::ThreadLocalRef(did)), ExprKind::Scope { region_scope, lint_level, value } => { let region_scope = (region_scope, source_info); - this.in_scope(region_scope, lint_level, |this| { - this.as_rvalue(block, scope, &this.thir[value]) - }) + this.in_scope(region_scope, lint_level, |this| this.as_rvalue(block, scope, value)) } ExprKind::Repeat { value, count } => { if Some(0) == count.try_eval_target_usize(this.tcx, this.param_env) { @@ -62,7 +61,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block = this.as_operand( block, scope, - &this.thir[value], + value, LocalInfo::Boring, NeedsTemporary::No ) @@ -75,31 +74,21 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block = this.as_operand( block, scope, - &this.thir[lhs], + lhs, LocalInfo::Boring, NeedsTemporary::Maybe ) ); let rhs = unpack!( - block = this.as_operand( - block, - scope, - &this.thir[rhs], - LocalInfo::Boring, - NeedsTemporary::No - ) + block = + this.as_operand(block, scope, rhs, LocalInfo::Boring, NeedsTemporary::No) ); this.build_binary_op(block, op, expr_span, expr.ty, lhs, rhs) } ExprKind::Unary { op, arg } => { let arg = unpack!( - block = this.as_operand( - block, - scope, - &this.thir[arg], - LocalInfo::Boring, - NeedsTemporary::No - ) + block = + this.as_operand(block, scope, arg, LocalInfo::Boring, NeedsTemporary::No) ); // Check for -MIN on signed integers if this.check_overflow && op == UnOp::Neg && expr.ty.is_signed() { @@ -126,7 +115,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block.and(Rvalue::UnaryOp(op, arg)) } ExprKind::Box { value } => { - let value = &this.thir[value]; + let value_ty = this.thir[value].ty; let tcx = this.tcx; // `exchange_malloc` is unsafe but box is safe, so need a new scope. @@ -142,7 +131,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block, synth_info, size, - Rvalue::NullaryOp(NullOp::SizeOf, value.ty), + Rvalue::NullaryOp(NullOp::SizeOf, value_ty), ); let align = this.temp(tcx.types.usize, expr_span); @@ -150,7 +139,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block, synth_info, align, - Rvalue::NullaryOp(NullOp::AlignOf, value.ty), + Rvalue::NullaryOp(NullOp::AlignOf, value_ty), ); // malloc some memory of suitable size and align: @@ -192,7 +181,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } // Transmute `*mut u8` to the box (thus far, uninitialized): - let box_ = Rvalue::ShallowInitBox(Operand::Move(storage), value.ty); + let box_ = Rvalue::ShallowInitBox(Operand::Move(storage), value_ty); this.cfg.push_assign(block, source_info, Place::from(result), box_); // initialize the box contents: @@ -200,24 +189,24 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block = this.expr_into_dest( this.tcx.mk_place_deref(Place::from(result)), block, - value + value, ) ); block.and(Rvalue::Use(Operand::Move(Place::from(result)))) } ExprKind::Cast { source } => { - let source = &this.thir[source]; + let source_expr = &this.thir[source]; // Casting an enum to an integer is equivalent to computing the discriminant and casting the // discriminant. Previously every backend had to repeat the logic for this operation. Now we // create all the steps directly in MIR with operations all backends need to support anyway. - let (source, ty) = if let ty::Adt(adt_def, ..) = source.ty.kind() + let (source, ty) = if let ty::Adt(adt_def, ..) = source_expr.ty.kind() && adt_def.is_enum() { let discr_ty = adt_def.repr().discr_type().to_ty(this.tcx); let temp = unpack!(block = this.as_temp(block, scope, source, Mutability::Not)); - let layout = this.tcx.layout_of(this.param_env.and(source.ty)); - let discr = this.temp(discr_ty, source.span); + let layout = this.tcx.layout_of(this.param_env.and(source_expr.ty)); + let discr = this.temp(discr_ty, source_expr.span); this.cfg.push_assign( block, source_info, @@ -296,7 +285,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { (op, ty) } else { - let ty = source.ty; + let ty = source_expr.ty; let source = unpack!( block = this.as_operand( block, @@ -310,7 +299,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { }; let from_ty = CastTy::from_ty(ty); let cast_ty = CastTy::from_ty(expr.ty); - debug!("ExprKind::Cast from_ty={from_ty:?}, cast_ty={:?}/{cast_ty:?}", expr.ty,); + debug!("ExprKind::Cast from_ty={from_ty:?}, cast_ty={:?}/{cast_ty:?}", expr.ty); let cast_kind = mir_cast_kind(ty, expr.ty); block.and(Rvalue::Cast(cast_kind, source, expr.ty)) } @@ -319,7 +308,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block = this.as_operand( block, scope, - &this.thir[source], + source, LocalInfo::Boring, NeedsTemporary::No ) @@ -363,7 +352,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block = this.as_operand( block, scope, - &this.thir[f], + f, LocalInfo::Boring, NeedsTemporary::Maybe ) @@ -384,7 +373,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block = this.as_operand( block, scope, - &this.thir[f], + f, LocalInfo::Boring, NeedsTemporary::Maybe ) @@ -416,8 +405,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // ``` // for (thir_place, cause, hir_id) in fake_reads.into_iter() { - let place_builder = - unpack!(block = this.as_place_builder(block, &this.thir[*thir_place])); + let place_builder = unpack!(block = this.as_place_builder(block, *thir_place)); if let Some(mir_place) = place_builder.try_to_place(this) { this.cfg.push_fake_read( @@ -434,8 +422,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { .into_iter() .copied() .map(|upvar| { - let upvar = &this.thir[upvar]; - match Category::of(&upvar.kind) { + let upvar_expr = &this.thir[upvar]; + match Category::of(&upvar_expr.kind) { // Use as_place to avoid creating a temporary when // moving a variable into a closure, so that // borrowck knows which variables to mark as being @@ -453,18 +441,18 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // borrow captures when capturing an immutable // variable. This is sound because the mutation // that caused the capture will cause an error. - match upvar.kind { + match upvar_expr.kind { ExprKind::Borrow { borrow_kind: BorrowKind::Mut { kind: MutBorrowKind::Default }, arg, } => unpack!( block = this.limit_capture_mutability( - upvar.span, - upvar.ty, + upvar_expr.span, + upvar_expr.ty, scope, block, - &this.thir[arg], + arg, ) ), _ => { @@ -498,7 +486,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block.and(Rvalue::Aggregate(result, operands)) } ExprKind::Assign { .. } | ExprKind::AssignOp { .. } => { - block = unpack!(this.stmt_expr(block, expr, None)); + block = unpack!(this.stmt_expr(block, expr_id, None)); block.and(Rvalue::Use(Operand::Constant(Box::new(ConstOperand { span: expr_span, user_ty: None, @@ -553,8 +541,13 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { Some(Category::Rvalue(RvalueFunc::AsRvalue) | Category::Constant) )); let operand = unpack!( - block = - this.as_operand(block, scope, expr, LocalInfo::Boring, NeedsTemporary::No) + block = this.as_operand( + block, + scope, + expr_id, + LocalInfo::Boring, + NeedsTemporary::No, + ) ); block.and(Rvalue::Use(operand)) } @@ -719,9 +712,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { outer_source_info: SourceInfo, ) -> BlockAnd<Rvalue<'tcx>> { let this = self; - let value = &this.thir[value]; - let elem_ty = value.ty; - if let Some(Category::Constant) = Category::of(&value.kind) { + let value_expr = &this.thir[value]; + let elem_ty = value_expr.ty; + if let Some(Category::Constant) = Category::of(&value_expr.kind) { // Repeating a const does nothing } else { // For a non-const, we may need to generate an appropriate `Drop` @@ -754,7 +747,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { upvar_ty: Ty<'tcx>, temp_lifetime: Option<region::Scope>, mut block: BasicBlock, - arg: &Expr<'tcx>, + arg: ExprId, ) -> BlockAnd<Operand<'tcx>> { let this = self; diff --git a/compiler/rustc_mir_build/src/build/expr/as_temp.rs b/compiler/rustc_mir_build/src/build/expr/as_temp.rs index a4ab365fa9a..27e66e7f54d 100644 --- a/compiler/rustc_mir_build/src/build/expr/as_temp.rs +++ b/compiler/rustc_mir_build/src/build/expr/as_temp.rs @@ -14,13 +14,13 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { &mut self, block: BasicBlock, temp_lifetime: Option<region::Scope>, - expr: &Expr<'tcx>, + expr_id: ExprId, mutability: Mutability, ) -> BlockAnd<Local> { // this is the only place in mir building that we need to truly need to worry about // infinite recursion. Everything else does recurse, too, but it always gets broken up // at some point by inserting an intermediate temporary - ensure_sufficient_stack(|| self.as_temp_inner(block, temp_lifetime, expr, mutability)) + ensure_sufficient_stack(|| self.as_temp_inner(block, temp_lifetime, expr_id, mutability)) } #[instrument(skip(self), level = "debug")] @@ -28,21 +28,26 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { &mut self, mut block: BasicBlock, temp_lifetime: Option<region::Scope>, - expr: &Expr<'tcx>, + expr_id: ExprId, mutability: Mutability, ) -> BlockAnd<Local> { let this = self; + let expr = &this.thir[expr_id]; let expr_span = expr.span; let source_info = this.source_info(expr_span); if let ExprKind::Scope { region_scope, lint_level, value } = expr.kind { return this.in_scope((region_scope, source_info), lint_level, |this| { - this.as_temp(block, temp_lifetime, &this.thir[value], mutability) + this.as_temp(block, temp_lifetime, value, mutability) }); } let expr_ty = expr.ty; - let temp = { + let deduplicate_temps = + this.fixed_temps_scope.is_some() && this.fixed_temps_scope == temp_lifetime; + let temp = if deduplicate_temps && let Some(temp_index) = this.fixed_temps.get(&expr_id) { + *temp_index + } else { let mut local_decl = LocalDecl::new(expr_ty, expr_span); if mutability.is_not() { local_decl = local_decl.immutable(); @@ -71,6 +76,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { **local_decl.local_info.as_mut().assert_crate_local() = local_info; this.local_decls.push(local_decl) }; + if deduplicate_temps { + this.fixed_temps.insert(expr_id, temp); + } let temp_place = Place::from(temp); match expr.kind { @@ -103,7 +111,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } } - unpack!(block = this.expr_into_dest(temp_place, block, expr)); + unpack!(block = this.expr_into_dest(temp_place, block, expr_id)); if let Some(temp_lifetime) = temp_lifetime { this.schedule_drop(expr_span, temp_lifetime, temp, DropKind::Value); diff --git a/compiler/rustc_mir_build/src/build/expr/into.rs b/compiler/rustc_mir_build/src/build/expr/into.rs index 054661cf237..f50945a4de0 100644 --- a/compiler/rustc_mir_build/src/build/expr/into.rs +++ b/compiler/rustc_mir_build/src/build/expr/into.rs @@ -19,12 +19,13 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { &mut self, destination: Place<'tcx>, mut block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<()> { // since we frequently have to reference `self` from within a // closure, where `self` would be shadowed, it's easier to // just use the name `this` uniformly let this = self; + let expr = &this.thir[expr_id]; let expr_span = expr.span; let source_info = this.source_info(expr_span); @@ -40,20 +41,25 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let region_scope = (region_scope, source_info); ensure_sufficient_stack(|| { this.in_scope(region_scope, lint_level, |this| { - this.expr_into_dest(destination, block, &this.thir[value]) + this.expr_into_dest(destination, block, value) }) }) } ExprKind::Block { block: ast_block } => { this.ast_block(destination, block, ast_block, source_info) } - ExprKind::Match { scrutinee, ref arms, .. } => { - this.match_expr(destination, expr_span, block, &this.thir[scrutinee], arms) - } + ExprKind::Match { scrutinee, ref arms, .. } => this.match_expr( + destination, + block, + scrutinee, + arms, + expr_span, + this.thir[scrutinee].span, + ), ExprKind::If { cond, then, else_opt, if_then_scope } => { let then_blk; - let then_expr = &this.thir[then]; - let then_source_info = this.source_info(then_expr.span); + let then_span = this.thir[then].span; + let then_source_info = this.source_info(then_span); let condition_scope = this.local_scope(); let mut else_blk = unpack!( @@ -62,27 +68,24 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { LintLevel::Inherited, |this| { let source_info = if this.is_let(cond) { - let variable_scope = this.new_source_scope( - then_expr.span, - LintLevel::Inherited, - None, - ); + let variable_scope = + this.new_source_scope(then_span, LintLevel::Inherited, None); this.source_scope = variable_scope; - SourceInfo { span: then_expr.span, scope: variable_scope } + SourceInfo { span: then_span, scope: variable_scope } } else { - this.source_info(then_expr.span) + this.source_info(then_span) }; let (then_block, else_block) = - this.in_if_then_scope(condition_scope, then_expr.span, |this| { + this.in_if_then_scope(condition_scope, then_span, |this| { let then_blk = unpack!(this.then_else_break( block, - &this.thir[cond], + cond, Some(condition_scope), condition_scope, source_info )); - this.expr_into_dest(destination, then_blk, then_expr) + this.expr_into_dest(destination, then_blk, then) }); then_block.and(else_block) }, @@ -90,7 +93,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ); else_blk = if let Some(else_opt) = else_opt { - unpack!(this.expr_into_dest(destination, else_blk, &this.thir[else_opt])) + unpack!(this.expr_into_dest(destination, else_blk, else_opt)) } else { // Body of the `if` expression without an `else` clause must return `()`, thus // we implicitly generate an `else {}` if it is not specified. @@ -107,7 +110,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ExprKind::Let { expr, ref pat } => { let scope = this.local_scope(); let (true_block, false_block) = this.in_if_then_scope(scope, expr_span, |this| { - this.lower_let_expr(block, &this.thir[expr], pat, scope, None, expr_span, true) + this.lower_let_expr(block, expr, pat, scope, None, expr_span, true) }); this.cfg.push_assign_constant( @@ -138,14 +141,14 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { join_block.unit() } ExprKind::NeverToAny { source } => { - let source = &this.thir[source]; + let source_expr = &this.thir[source]; let is_call = - matches!(source.kind, ExprKind::Call { .. } | ExprKind::InlineAsm { .. }); + matches!(source_expr.kind, ExprKind::Call { .. } | ExprKind::InlineAsm { .. }); // (#66975) Source could be a const of type `!`, so has to // exist in the generated MIR. unpack!( - block = this.as_temp(block, Some(this.local_scope()), source, Mutability::Mut,) + block = this.as_temp(block, Some(this.local_scope()), source, Mutability::Mut) ); // This is an optimization. If the expression was a call then we already have an @@ -166,7 +169,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { this.in_if_then_scope(condition_scope, expr.span, |this| { this.then_else_break( block, - &this.thir[lhs], + lhs, Some(condition_scope), condition_scope, source_info, @@ -192,7 +195,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { const_: Const::from_bool(this.tcx, constant), }, ); - let rhs = unpack!(this.expr_into_dest(destination, continuation, &this.thir[rhs])); + let rhs = unpack!(this.expr_into_dest(destination, continuation, rhs)); let target = this.cfg.start_new_block(); this.cfg.goto(rhs, source_info, target); this.cfg.goto(short_circuit, source_info, target); @@ -231,8 +234,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // introduce a unit temporary as the destination for the loop body. let tmp = this.get_unit_temp(); // Execute the body, branching back to the test. - let body_block_end = - unpack!(this.expr_into_dest(tmp, body_block, &this.thir[body])); + let body_block_end = unpack!(this.expr_into_dest(tmp, body_block, body)); this.cfg.goto(body_block_end, source_info, loop_block); // Loops are only exited by `break` expressions. @@ -240,11 +242,11 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { }) } ExprKind::Call { ty: _, fun, ref args, from_hir_call, fn_span } => { - let fun = unpack!(block = this.as_local_operand(block, &this.thir[fun])); + let fun = unpack!(block = this.as_local_operand(block, fun)); let args: Vec<_> = args .into_iter() .copied() - .map(|arg| unpack!(block = this.as_local_call_operand(block, &this.thir[arg]))) + .map(|arg| unpack!(block = this.as_local_call_operand(block, arg))) .collect(); let success = this.cfg.start_new_block(); @@ -280,16 +282,17 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { this.diverge_from(block); success.unit() } - ExprKind::Use { source } => this.expr_into_dest(destination, block, &this.thir[source]), + ExprKind::Use { source } => this.expr_into_dest(destination, block, source), ExprKind::Borrow { arg, borrow_kind } => { - let arg = &this.thir[arg]; // We don't do this in `as_rvalue` because we use `as_place` // for borrow expressions, so we cannot create an `RValue` that // remains valid across user code. `as_rvalue` is usually called // by this method anyway, so this shouldn't cause too many // unnecessary temporaries. let arg_place = match borrow_kind { - BorrowKind::Shared => unpack!(block = this.as_read_only_place(block, arg)), + BorrowKind::Shared => { + unpack!(block = this.as_read_only_place(block, arg)) + } _ => unpack!(block = this.as_place(block, arg)), }; let borrow = Rvalue::Ref(this.tcx.lifetimes.re_erased, borrow_kind, arg_place); @@ -297,7 +300,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block.unit() } ExprKind::AddressOf { mutability, arg } => { - let arg = &this.thir[arg]; let place = match mutability { hir::Mutability::Not => this.as_read_only_place(block, arg), hir::Mutability::Mut => this.as_place(block, arg), @@ -332,7 +334,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block = this.as_operand( block, Some(scope), - &this.thir[f.expr], + f.expr, LocalInfo::AggregateTemp, NeedsTemporary::Maybe, ) @@ -344,8 +346,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let field_names = adt_def.variant(variant_index).fields.indices(); let fields = if let Some(FruInfo { base, field_types }) = base { - let place_builder = - unpack!(block = this.as_place_builder(block, &this.thir[*base])); + let place_builder = unpack!(block = this.as_place_builder(block, *base)); // MIR does not natively support FRU, so for each // base-supplied field, generate an operand that @@ -398,19 +399,17 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { .map(|op| match *op { thir::InlineAsmOperand::In { reg, expr } => mir::InlineAsmOperand::In { reg, - value: unpack!(block = this.as_local_operand(block, &this.thir[expr])), + value: unpack!(block = this.as_local_operand(block, expr)), }, thir::InlineAsmOperand::Out { reg, late, expr } => { mir::InlineAsmOperand::Out { reg, late, - place: expr.map(|expr| { - unpack!(block = this.as_place(block, &this.thir[expr])) - }), + place: expr.map(|expr| unpack!(block = this.as_place(block, expr))), } } thir::InlineAsmOperand::InOut { reg, late, expr } => { - let place = unpack!(block = this.as_place(block, &this.thir[expr])); + let place = unpack!(block = this.as_place(block, expr)); mir::InlineAsmOperand::InOut { reg, late, @@ -423,11 +422,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { mir::InlineAsmOperand::InOut { reg, late, - in_value: unpack!( - block = this.as_local_operand(block, &this.thir[in_expr]) - ), + in_value: unpack!(block = this.as_local_operand(block, in_expr)), out_place: out_expr.map(|out_expr| { - unpack!(block = this.as_place(block, &this.thir[out_expr])) + unpack!(block = this.as_place(block, out_expr)) }), } } @@ -488,7 +485,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // These cases don't actually need a destination ExprKind::Assign { .. } | ExprKind::AssignOp { .. } => { - unpack!(block = this.stmt_expr(block, expr, None)); + unpack!(block = this.stmt_expr(block, expr_id, None)); this.cfg.push_assign_unit(block, source_info, destination, this.tcx); block.unit() } @@ -497,7 +494,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { | ExprKind::Break { .. } | ExprKind::Return { .. } | ExprKind::Become { .. } => { - unpack!(block = this.stmt_expr(block, expr, None)); + unpack!(block = this.stmt_expr(block, expr_id, None)); // No assign, as these have type `!`. block.unit() } @@ -509,7 +506,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { | ExprKind::ValueTypeAscription { .. } => { debug_assert!(Category::of(&expr.kind) == Some(Category::Place)); - let place = unpack!(block = this.as_place(block, expr)); + let place = unpack!(block = this.as_place(block, expr_id)); let rvalue = Rvalue::Use(this.consume_by_copy_or_move(place)); this.cfg.push_assign(block, source_info, destination, rvalue); block.unit() @@ -524,7 +521,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { this.local_decls.push(LocalDecl::new(expr.ty, expr.span)); } - let place = unpack!(block = this.as_place(block, expr)); + let place = unpack!(block = this.as_place(block, expr_id)); let rvalue = Rvalue::Use(this.consume_by_copy_or_move(place)); this.cfg.push_assign(block, source_info, destination, rvalue); block.unit() @@ -536,7 +533,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block = this.as_operand( block, Some(scope), - &this.thir[value], + value, LocalInfo::Boring, NeedsTemporary::No ) @@ -582,7 +579,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { _ => true, }); - let rvalue = unpack!(block = this.as_local_rvalue(block, expr)); + let rvalue = unpack!(block = this.as_local_rvalue(block, expr_id)); this.cfg.push_assign(block, source_info, destination, rvalue); block.unit() } diff --git a/compiler/rustc_mir_build/src/build/expr/stmt.rs b/compiler/rustc_mir_build/src/build/expr/stmt.rs index 7beaef602a8..7f5e45e20cc 100644 --- a/compiler/rustc_mir_build/src/build/expr/stmt.rs +++ b/compiler/rustc_mir_build/src/build/expr/stmt.rs @@ -11,10 +11,11 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn stmt_expr( &mut self, mut block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, statement_scope: Option<region::Scope>, ) -> BlockAnd<()> { let this = self; + let expr = &this.thir[expr_id]; let expr_span = expr.span; let source_info = this.source_info(expr.span); // Handle a number of expressions that don't need a destination at all. This @@ -22,13 +23,11 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { match expr.kind { ExprKind::Scope { region_scope, lint_level, value } => { this.in_scope((region_scope, source_info), lint_level, |this| { - this.stmt_expr(block, &this.thir[value], statement_scope) + this.stmt_expr(block, value, statement_scope) }) } ExprKind::Assign { lhs, rhs } => { - let lhs = &this.thir[lhs]; - let rhs = &this.thir[rhs]; - let lhs_span = lhs.span; + let lhs_expr = &this.thir[lhs]; // Note: we evaluate assignments right-to-left. This // is better for borrowck interaction with overloaded @@ -39,10 +38,10 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // Generate better code for things that don't need to be // dropped. - if lhs.ty.needs_drop(this.tcx, this.param_env) { + if lhs_expr.ty.needs_drop(this.tcx, this.param_env) { let rhs = unpack!(block = this.as_local_rvalue(block, rhs)); let lhs = unpack!(block = this.as_place(block, lhs)); - unpack!(block = this.build_drop_and_replace(block, lhs_span, lhs, rhs)); + unpack!(block = this.build_drop_and_replace(block, lhs_expr.span, lhs, rhs)); } else { let rhs = unpack!(block = this.as_local_rvalue(block, rhs)); let lhs = unpack!(block = this.as_place(block, lhs)); @@ -61,9 +60,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // only affects weird things like `x += {x += 1; x}` // -- is that equal to `x + (x + 1)` or `2*(x+1)`? - let lhs = &this.thir[lhs]; - let rhs = &this.thir[rhs]; - let lhs_ty = lhs.ty; + let lhs_ty = this.thir[lhs].ty; debug!("stmt_expr AssignOp block_context.push(SubExpr) : {:?}", expr); this.block_context.push(BlockFrame::SubExpr); @@ -87,25 +84,16 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ExprKind::Continue { label } => { this.break_scope(block, None, BreakableTarget::Continue(label), source_info) } - ExprKind::Break { label, value } => this.break_scope( - block, - value.map(|value| &this.thir[value]), - BreakableTarget::Break(label), - source_info, - ), - ExprKind::Return { value } => this.break_scope( - block, - value.map(|value| &this.thir[value]), - BreakableTarget::Return, - source_info, - ), + ExprKind::Break { label, value } => { + this.break_scope(block, value, BreakableTarget::Break(label), source_info) + } + ExprKind::Return { value } => { + this.break_scope(block, value, BreakableTarget::Return, source_info) + } // FIXME(explicit_tail_calls): properly lower tail calls here - ExprKind::Become { value } => this.break_scope( - block, - Some(&this.thir[value]), - BreakableTarget::Return, - source_info, - ), + ExprKind::Become { value } => { + this.break_scope(block, Some(value), BreakableTarget::Return, source_info) + } _ => { assert!( statement_scope.is_some(), @@ -147,7 +135,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { }; let temp = - unpack!(block = this.as_temp(block, statement_scope, expr, Mutability::Not)); + unpack!(block = this.as_temp(block, statement_scope, expr_id, Mutability::Not)); if let Some(span) = adjusted_span { this.local_decls[temp].source_info.span = span; diff --git a/compiler/rustc_mir_build/src/build/matches/mod.rs b/compiler/rustc_mir_build/src/build/matches/mod.rs index 541b87af797..7f29e3308f4 100644 --- a/compiler/rustc_mir_build/src/build/matches/mod.rs +++ b/compiler/rustc_mir_build/src/build/matches/mod.rs @@ -36,19 +36,20 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn then_else_break( &mut self, mut block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, temp_scope_override: Option<region::Scope>, break_scope: region::Scope, variable_source_info: SourceInfo, ) -> BlockAnd<()> { let this = self; + let expr = &this.thir[expr_id]; let expr_span = expr.span; match expr.kind { ExprKind::LogicalOp { op: LogicalOp::And, lhs, rhs } => { let lhs_then_block = unpack!(this.then_else_break( block, - &this.thir[lhs], + lhs, temp_scope_override, break_scope, variable_source_info, @@ -56,7 +57,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let rhs_then_block = unpack!(this.then_else_break( lhs_then_block, - &this.thir[rhs], + rhs, temp_scope_override, break_scope, variable_source_info, @@ -70,7 +71,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { this.in_if_then_scope(local_scope, expr_span, |this| { this.then_else_break( block, - &this.thir[lhs], + lhs, temp_scope_override, local_scope, variable_source_info, @@ -78,7 +79,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { }); let rhs_success_block = unpack!(this.then_else_break( failure_block, - &this.thir[rhs], + rhs, temp_scope_override, break_scope, variable_source_info, @@ -97,7 +98,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } this.then_else_break( block, - &this.thir[arg], + arg, temp_scope_override, local_scope, variable_source_info, @@ -111,7 +112,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { this.in_scope(region_scope, lint_level, |this| { this.then_else_break( block, - &this.thir[value], + value, temp_scope_override, break_scope, variable_source_info, @@ -120,14 +121,14 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } ExprKind::Use { source } => this.then_else_break( block, - &this.thir[source], + source, temp_scope_override, break_scope, variable_source_info, ), ExprKind::Let { expr, ref pat } => this.lower_let_expr( block, - &this.thir[expr], + expr, pat, break_scope, Some(variable_source_info.scope), @@ -138,7 +139,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let temp_scope = temp_scope_override.unwrap_or_else(|| this.local_scope()); let mutability = Mutability::Mut; let place = - unpack!(block = this.as_temp(block, Some(temp_scope), expr, mutability)); + unpack!(block = this.as_temp(block, Some(temp_scope), expr_id, mutability)); let operand = Operand::Move(Place::from(place)); let then_block = this.cfg.start_new_block(); @@ -208,14 +209,15 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn match_expr( &mut self, destination: Place<'tcx>, - span: Span, mut block: BasicBlock, - scrutinee: &Expr<'tcx>, + scrutinee_id: ExprId, arms: &[ArmId], + span: Span, + scrutinee_span: Span, ) -> BlockAnd<()> { - let scrutinee_span = scrutinee.span; + let scrutinee_span = scrutinee_span; let scrutinee_place = - unpack!(block = self.lower_scrutinee(block, scrutinee, scrutinee_span,)); + unpack!(block = self.lower_scrutinee(block, scrutinee_id, scrutinee_span)); let mut arm_candidates = self.create_match_candidates(&scrutinee_place, arms); @@ -223,7 +225,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let mut candidates = arm_candidates.iter_mut().map(|(_, candidate)| candidate).collect::<Vec<_>>(); - let match_start_span = span.shrink_to_lo().to(scrutinee.span); + let match_start_span = span.shrink_to_lo().to(scrutinee_span); let fake_borrow_temps = self.lower_match_tree( block, @@ -248,10 +250,10 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { fn lower_scrutinee( &mut self, mut block: BasicBlock, - scrutinee: &Expr<'tcx>, + scrutinee_id: ExprId, scrutinee_span: Span, ) -> BlockAnd<PlaceBuilder<'tcx>> { - let scrutinee_place_builder = unpack!(block = self.as_place_builder(block, scrutinee)); + let scrutinee_place_builder = unpack!(block = self.as_place_builder(block, scrutinee_id)); if let Some(scrutinee_place) = scrutinee_place_builder.try_to_place(self) { let source_info = self.source_info(scrutinee_span); self.cfg.push_place_mention(block, source_info, scrutinee_place); @@ -394,6 +396,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let arm_scope = (arm.scope, arm_source_info); let match_scope = self.local_scope(); self.in_scope(arm_scope, arm.lint_level, |this| { + let old_dedup_scope = + mem::replace(&mut this.fixed_temps_scope, Some(arm.scope)); + // `try_to_place` may fail if it is unable to resolve the given // `PlaceBuilder` inside a closure. In this case, we don't want to include // a scrutinee place. `scrutinee_place_builder` will fail to be resolved @@ -425,11 +430,13 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { false, ); + this.fixed_temps_scope = old_dedup_scope; + if let Some(source_scope) = scope { this.source_scope = source_scope; } - this.expr_into_dest(destination, arm_block, &this.thir[arm.body]) + this.expr_into_dest(destination, arm_block, arm.body) }) }) .collect(); @@ -538,14 +545,14 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { &mut self, mut block: BasicBlock, irrefutable_pat: &Pat<'tcx>, - initializer: &Expr<'tcx>, + initializer_id: ExprId, ) -> BlockAnd<()> { match irrefutable_pat.kind { // Optimize the case of `let x = ...` to write directly into `x` PatKind::Binding { mode: BindingMode::ByValue, var, subpattern: None, .. } => { let place = self.storage_live_binding(block, var, irrefutable_pat.span, OutsideGuard, true); - unpack!(block = self.expr_into_dest(place, block, initializer)); + unpack!(block = self.expr_into_dest(place, block, initializer_id)); // Inject a fake read, see comments on `FakeReadCause::ForLet`. let source_info = self.source_info(irrefutable_pat.span); @@ -576,7 +583,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } => { let place = self.storage_live_binding(block, var, irrefutable_pat.span, OutsideGuard, true); - unpack!(block = self.expr_into_dest(place, block, initializer)); + unpack!(block = self.expr_into_dest(place, block, initializer_id)); // Inject a fake read, see comments on `FakeReadCause::ForLet`. let pattern_source_info = self.source_info(irrefutable_pat.span); @@ -616,8 +623,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } _ => { + let initializer = &self.thir[initializer_id]; let place_builder = - unpack!(block = self.lower_scrutinee(block, initializer, initializer.span)); + unpack!(block = self.lower_scrutinee(block, initializer_id, initializer.span)); self.place_into_pattern(block, irrefutable_pat, place_builder, true) } } @@ -1699,59 +1707,51 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { debug!("tested_candidates: {}", total_candidate_count - candidates.len()); debug!("untested_candidates: {}", candidates.len()); - // HACK(matthewjasper) This is a closure so that we can let the test - // create its blocks before the rest of the match. This currently - // improves the speed of llvm when optimizing long string literal - // matches - let make_target_blocks = move |this: &mut Self| -> Vec<BasicBlock> { - // The block that we should branch to if none of the - // `target_candidates` match. This is either the block where we - // start matching the untested candidates if there are any, - // otherwise it's the `otherwise_block`. - let remainder_start = &mut None; - let remainder_start = - if candidates.is_empty() { &mut *otherwise_block } else { remainder_start }; - - // For each outcome of test, process the candidates that still - // apply. Collect a list of blocks where control flow will - // branch if one of the `target_candidate` sets is not - // exhaustive. - let target_blocks: Vec<_> = target_candidates - .into_iter() - .map(|mut candidates| { - if !candidates.is_empty() { - let candidate_start = this.cfg.start_new_block(); - this.match_candidates( - span, - scrutinee_span, - candidate_start, - remainder_start, - &mut *candidates, - fake_borrows, - ); - candidate_start - } else { - *remainder_start.get_or_insert_with(|| this.cfg.start_new_block()) - } - }) - .collect(); - - if !candidates.is_empty() { - let remainder_start = remainder_start.unwrap_or_else(|| this.cfg.start_new_block()); - this.match_candidates( - span, - scrutinee_span, - remainder_start, - otherwise_block, - candidates, - fake_borrows, - ); - }; + // The block that we should branch to if none of the + // `target_candidates` match. This is either the block where we + // start matching the untested candidates if there are any, + // otherwise it's the `otherwise_block`. + let remainder_start = &mut None; + let remainder_start = + if candidates.is_empty() { &mut *otherwise_block } else { remainder_start }; + + // For each outcome of test, process the candidates that still + // apply. Collect a list of blocks where control flow will + // branch if one of the `target_candidate` sets is not + // exhaustive. + let target_blocks: Vec<_> = target_candidates + .into_iter() + .map(|mut candidates| { + if !candidates.is_empty() { + let candidate_start = self.cfg.start_new_block(); + self.match_candidates( + span, + scrutinee_span, + candidate_start, + remainder_start, + &mut *candidates, + fake_borrows, + ); + candidate_start + } else { + *remainder_start.get_or_insert_with(|| self.cfg.start_new_block()) + } + }) + .collect(); - target_blocks - }; + if !candidates.is_empty() { + let remainder_start = remainder_start.unwrap_or_else(|| self.cfg.start_new_block()); + self.match_candidates( + span, + scrutinee_span, + remainder_start, + otherwise_block, + candidates, + fake_borrows, + ); + } - self.perform_test(span, scrutinee_span, block, &match_place, &test, make_target_blocks); + self.perform_test(span, scrutinee_span, block, &match_place, &test, target_blocks); } /// Determine the fake borrows that are needed from a set of places that @@ -1839,15 +1839,15 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn lower_let_expr( &mut self, mut block: BasicBlock, - expr: &Expr<'tcx>, + expr_id: ExprId, pat: &Pat<'tcx>, else_target: region::Scope, source_scope: Option<SourceScope>, span: Span, declare_bindings: bool, ) -> BlockAnd<()> { - let expr_span = expr.span; - let expr_place_builder = unpack!(block = self.lower_scrutinee(block, expr, expr_span)); + let expr_span = self.thir[expr_id].span; + let expr_place_builder = unpack!(block = self.lower_scrutinee(block, expr_id, expr_span)); let wildcard = Pat::wildcard_from_ty(pat.ty); let mut guard_candidate = Candidate::new(expr_place_builder.clone(), pat, false, self); let mut otherwise_candidate = @@ -1873,7 +1873,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { self.source_info(pat.span), guard_candidate, &fake_borrow_temps, - expr.span, + expr_span, None, false, ); @@ -2036,8 +2036,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let (post_guard_block, otherwise_post_guard_block) = self.in_if_then_scope(match_scope, guard_span, |this| match *guard { Guard::If(e) => { - let e = &this.thir[e]; - guard_span = e.span; + guard_span = this.thir[e].span; this.then_else_break( block, e, @@ -2046,9 +2045,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { this.source_info(arm.span), ) } - Guard::IfLet(ref pat, scrutinee) => { - let s = &this.thir[scrutinee]; - guard_span = s.span; + Guard::IfLet(ref pat, s) => { + guard_span = this.thir[s].span; this.lower_let_expr(block, s, pat, match_scope, None, arm.span, false) } }); @@ -2342,7 +2340,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn ast_let_else( &mut self, mut block: BasicBlock, - init: &Expr<'tcx>, + init_id: ExprId, initializer_span: Span, else_block: BlockId, let_else_scope: ®ion::Scope, @@ -2350,8 +2348,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ) -> BlockAnd<BasicBlock> { let else_block_span = self.thir[else_block].span; let (matching, failure) = self.in_if_then_scope(*let_else_scope, else_block_span, |this| { - let scrutinee = unpack!(block = this.lower_scrutinee(block, init, initializer_span)); - let pat = Pat { ty: init.ty, span: else_block_span, kind: PatKind::Wild }; + let scrutinee = unpack!(block = this.lower_scrutinee(block, init_id, initializer_span)); + let pat = Pat { ty: pattern.ty, span: else_block_span, kind: PatKind::Wild }; let mut wildcard = Candidate::new(scrutinee.clone(), &pat, false, this); let mut candidate = Candidate::new(scrutinee.clone(), pattern, false, this); let fake_borrow_temps = this.lower_match_tree( diff --git a/compiler/rustc_mir_build/src/build/matches/test.rs b/compiler/rustc_mir_build/src/build/matches/test.rs index d1952704da3..53e5d70f946 100644 --- a/compiler/rustc_mir_build/src/build/matches/test.rs +++ b/compiler/rustc_mir_build/src/build/matches/test.rs @@ -147,7 +147,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } } - #[instrument(skip(self, make_target_blocks, place_builder), level = "debug")] + #[instrument(skip(self, target_blocks, place_builder), level = "debug")] pub(super) fn perform_test( &mut self, match_start_span: Span, @@ -155,7 +155,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { block: BasicBlock, place_builder: &PlaceBuilder<'tcx>, test: &Test<'tcx>, - make_target_blocks: impl FnOnce(&mut Self) -> Vec<BasicBlock>, + target_blocks: Vec<BasicBlock>, ) { let place = place_builder.to_place(self); let place_ty = place.ty(&self.local_decls, self.tcx); @@ -164,7 +164,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let source_info = self.source_info(test.span); match test.kind { TestKind::Switch { adt_def, ref variants } => { - let target_blocks = make_target_blocks(self); // Variants is a BitVec of indexes into adt_def.variants. let num_enum_variants = adt_def.variants().len(); debug_assert_eq!(target_blocks.len(), num_enum_variants + 1); @@ -210,7 +209,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } TestKind::SwitchInt { switch_ty, ref options } => { - let target_blocks = make_target_blocks(self); let terminator = if *switch_ty.kind() == ty::Bool { assert!(!options.is_empty() && options.len() <= 2); let [first_bb, second_bb] = *target_blocks else { @@ -240,6 +238,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { TestKind::Eq { value, ty } => { let tcx = self.tcx; + let [success_block, fail_block] = *target_blocks else { + bug!("`TestKind::Eq` should have two target blocks") + }; if let ty::Adt(def, _) = ty.kind() && Some(def.did()) == tcx.lang_items().string() { @@ -280,38 +281,43 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ); self.non_scalar_compare( eq_block, - make_target_blocks, + success_block, + fail_block, source_info, value, ref_str, ref_str_ty, ); - return; - } - if !ty.is_scalar() { + } else if !ty.is_scalar() { // Use `PartialEq::eq` instead of `BinOp::Eq` // (the binop can only handle primitives) self.non_scalar_compare( block, - make_target_blocks, + success_block, + fail_block, source_info, value, place, ty, ); - } else if let [success, fail] = *make_target_blocks(self) { + } else { assert_eq!(value.ty(), ty); let expect = self.literal_operand(test.span, value); let val = Operand::Copy(place); - self.compare(block, success, fail, source_info, BinOp::Eq, expect, val); - } else { - bug!("`TestKind::Eq` should have two target blocks"); + self.compare( + block, + success_block, + fail_block, + source_info, + BinOp::Eq, + expect, + val, + ); } } TestKind::Range(ref range) => { let lower_bound_success = self.cfg.start_new_block(); - let target_blocks = make_target_blocks(self); // Test `val` by computing `lo <= val && val <= hi`, using primitive comparisons. // FIXME: skip useless comparison when the range is half-open. @@ -341,8 +347,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } TestKind::Len { len, op } => { - let target_blocks = make_target_blocks(self); - let usize_ty = self.tcx.types.usize; let actual = self.temp(usize_ty, test.span); @@ -406,7 +410,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { fn non_scalar_compare( &mut self, block: BasicBlock, - make_target_blocks: impl FnOnce(&mut Self) -> Vec<BasicBlock>, + success_block: BasicBlock, + fail_block: BasicBlock, source_info: SourceInfo, value: Const<'tcx>, mut val: Place<'tcx>, @@ -531,9 +536,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { ); self.diverge_from(block); - let [success_block, fail_block] = *make_target_blocks(self) else { - bug!("`TestKind::Eq` should have two target blocks") - }; // check the result self.cfg.terminate( eq_block, diff --git a/compiler/rustc_mir_build/src/build/mod.rs b/compiler/rustc_mir_build/src/build/mod.rs index dae83d4b41b..a6336ec63b2 100644 --- a/compiler/rustc_mir_build/src/build/mod.rs +++ b/compiler/rustc_mir_build/src/build/mod.rs @@ -18,7 +18,7 @@ use rustc_middle::middle::region; use rustc_middle::mir::interpret::Scalar; use rustc_middle::mir::*; use rustc_middle::thir::{ - self, BindingMode, Expr, ExprId, LintLevel, LocalVarId, Param, ParamId, PatKind, Thir, + self, BindingMode, ExprId, LintLevel, LocalVarId, Param, ParamId, PatKind, Thir, }; use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt}; use rustc_span::symbol::sym; @@ -210,6 +210,12 @@ struct Builder<'a, 'tcx> { /// finish building it. guard_context: Vec<GuardFrame>, + /// Temporaries with fixed indexes. Used so that if-let guards on arms + /// with an or-pattern are only created once. + fixed_temps: FxHashMap<ExprId, Local>, + /// Scope of temporaries that should be deduplicated using [Self::fixed_temps]. + fixed_temps_scope: Option<region::Scope>, + /// Maps `HirId`s of variable bindings to the `Local`s created for them. /// (A match binding can have two locals; the 2nd is for the arm's guard.) var_indices: FxHashMap<LocalVarId, LocalsForNode>, @@ -539,7 +545,7 @@ fn construct_fn<'tcx>( let return_block = unpack!(builder.in_breakable_scope(None, Place::return_place(), fn_end, |builder| { Some(builder.in_scope(arg_scope_s, LintLevel::Inherited, |builder| { - builder.args_and_body(START_BLOCK, arguments, arg_scope, &thir[expr]) + builder.args_and_body(START_BLOCK, arguments, arg_scope, expr) })) })); let source_info = builder.source_info(fn_end); @@ -606,7 +612,7 @@ fn construct_const<'a, 'tcx>( ); let mut block = START_BLOCK; - unpack!(block = builder.expr_into_dest(Place::return_place(), block, &thir[expr])); + unpack!(block = builder.expr_into_dest(Place::return_place(), block, expr)); let source_info = builder.source_info(span); builder.cfg.terminate(block, source_info, TerminatorKind::Return); @@ -752,6 +758,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { source_scopes: IndexVec::new(), source_scope: OUTERMOST_SOURCE_SCOPE, guard_context: vec![], + fixed_temps: Default::default(), + fixed_temps_scope: None, in_scope_unsafe: safety, local_decls: IndexVec::from_elem_n(LocalDecl::new(return_ty, return_span), 1), canonical_user_type_annotations: IndexVec::new(), @@ -865,8 +873,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { mut block: BasicBlock, arguments: &IndexSlice<ParamId, Param<'tcx>>, argument_scope: region::Scope, - expr: &Expr<'tcx>, + expr_id: ExprId, ) -> BlockAnd<()> { + let expr_span = self.thir[expr_id].span; // Allocate locals for the function arguments for (argument_index, param) in arguments.iter().enumerate() { let source_info = @@ -899,7 +908,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // Make sure we drop (parts of) the argument even when not matched on. self.schedule_drop( - param.pat.as_ref().map_or(expr.span, |pat| pat.span), + param.pat.as_ref().map_or(expr_span, |pat| pat.span), argument_scope, local, DropKind::Value, @@ -941,8 +950,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { _ => { scope = self.declare_bindings( scope, - expr.span, - pat, + expr_span, + &pat, None, Some((Some(&place), span)), ); @@ -958,7 +967,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { self.source_scope = source_scope; } - self.expr_into_dest(Place::return_place(), block, expr) + self.expr_into_dest(Place::return_place(), block, expr_id) } fn set_correct_source_scope_for_arg( diff --git a/compiler/rustc_mir_build/src/build/scope.rs b/compiler/rustc_mir_build/src/build/scope.rs index 25b79e6a523..1a700ac7342 100644 --- a/compiler/rustc_mir_build/src/build/scope.rs +++ b/compiler/rustc_mir_build/src/build/scope.rs @@ -89,7 +89,7 @@ use rustc_hir::HirId; use rustc_index::{IndexSlice, IndexVec}; use rustc_middle::middle::region; use rustc_middle::mir::*; -use rustc_middle::thir::{Expr, LintLevel}; +use rustc_middle::thir::{ExprId, LintLevel}; use rustc_session::lint::Level; use rustc_span::{Span, DUMMY_SP}; @@ -592,7 +592,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn break_scope( &mut self, mut block: BasicBlock, - value: Option<&Expr<'tcx>>, + value: Option<ExprId>, target: BreakableTarget, source_info: SourceInfo, ) -> BlockAnd<()> { diff --git a/compiler/rustc_mir_build/src/errors.rs b/compiler/rustc_mir_build/src/errors.rs index 9baae706dff..8677cba6a7c 100644 --- a/compiler/rustc_mir_build/src/errors.rs +++ b/compiler/rustc_mir_build/src/errors.rs @@ -1,12 +1,12 @@ use crate::fluent_generated as fluent; use rustc_errors::DiagnosticArgValue; use rustc_errors::{ - error_code, AddToDiagnostic, Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, - Handler, IntoDiagnostic, MultiSpan, SubdiagnosticMessage, + error_code, AddToDiagnostic, Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder, + IntoDiagnostic, Level, MultiSpan, SubdiagnosticMessage, }; use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; use rustc_middle::ty::{self, Ty}; -use rustc_pattern_analysis::{cx::MatchCheckCtxt, errors::Uncovered}; +use rustc_pattern_analysis::{errors::Uncovered, rustc::RustcMatchCheckCtxt}; use rustc_span::symbol::Symbol; use rustc_span::Span; @@ -454,20 +454,21 @@ pub enum UnusedUnsafeEnclosing { } pub(crate) struct NonExhaustivePatternsTypeNotEmpty<'p, 'tcx, 'm> { - pub cx: &'m MatchCheckCtxt<'p, 'tcx>, + pub cx: &'m RustcMatchCheckCtxt<'p, 'tcx>, pub expr_span: Span, pub span: Span, pub ty: Ty<'tcx>, } impl<'a> IntoDiagnostic<'a> for NonExhaustivePatternsTypeNotEmpty<'_, '_, '_> { - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_span_err_with_code( - self.span, + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'_> { + let mut diag = DiagnosticBuilder::new( + dcx, + level, fluent::mir_build_non_exhaustive_patterns_type_not_empty, - error_code!(E0004), ); - + diag.set_span(self.span); + diag.code(error_code!(E0004)); let peeled_ty = self.ty.peel_refs(); diag.set_arg("ty", self.ty); diag.set_arg("peeled_ty", peeled_ty); diff --git a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs index 792a443c908..fcccdf105f6 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs @@ -1,13 +1,13 @@ -use rustc_pattern_analysis::constructor::Constructor; -use rustc_pattern_analysis::cx::MatchCheckCtxt; use rustc_pattern_analysis::errors::Uncovered; -use rustc_pattern_analysis::pat::{DeconstructedPat, WitnessPat}; -use rustc_pattern_analysis::usefulness::{Usefulness, UsefulnessReport}; +use rustc_pattern_analysis::rustc::{ + Constructor, DeconstructedPat, RustcMatchCheckCtxt as MatchCheckCtxt, Usefulness, + UsefulnessReport, WitnessPat, +}; use rustc_pattern_analysis::{analyze_match, MatchArm}; use crate::errors::*; -use rustc_arena::TypedArena; +use rustc_arena::{DroplessArena, TypedArena}; use rustc_ast::Mutability; use rustc_data_structures::fx::FxIndexSet; use rustc_data_structures::stack::ensure_sufficient_stack; @@ -28,16 +28,20 @@ use rustc_span::hygiene::DesugaringKind; use rustc_span::Span; pub(crate) fn check_match(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Result<(), ErrorGuaranteed> { + let typeck_results = tcx.typeck(def_id); let (thir, expr) = tcx.thir_body(def_id)?; let thir = thir.borrow(); let pattern_arena = TypedArena::default(); + let dropless_arena = DroplessArena::default(); let mut visitor = MatchVisitor { tcx, thir: &*thir, + typeck_results, param_env: tcx.param_env(def_id), lint_level: tcx.local_def_id_to_hir_id(def_id), let_source: LetSource::None, pattern_arena: &pattern_arena, + dropless_arena: &dropless_arena, error: Ok(()), }; visitor.visit_expr(&thir[expr]); @@ -50,11 +54,7 @@ pub(crate) fn check_match(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Result<(), Err visitor.error } -fn create_e0004( - sess: &Session, - sp: Span, - error_message: String, -) -> DiagnosticBuilder<'_, ErrorGuaranteed> { +fn create_e0004(sess: &Session, sp: Span, error_message: String) -> DiagnosticBuilder<'_> { struct_span_err!(sess, sp, E0004, "{}", &error_message) } @@ -78,10 +78,12 @@ enum LetSource { struct MatchVisitor<'thir, 'p, 'tcx> { tcx: TyCtxt<'tcx>, param_env: ty::ParamEnv<'tcx>, + typeck_results: &'tcx ty::TypeckResults<'tcx>, thir: &'thir Thir<'tcx>, lint_level: HirId, let_source: LetSource, pattern_arena: &'p TypedArena<DeconstructedPat<'p, 'tcx>>, + dropless_arena: &'p DroplessArena, /// Tracks if we encountered an error while checking this body. That the first function to /// report it stores it here. Some functions return `Result` to allow callers to short-circuit /// on error, but callers don't need to store it here again. @@ -379,9 +381,11 @@ impl<'thir, 'p, 'tcx> MatchVisitor<'thir, 'p, 'tcx> { scrutinee.map(|scrut| self.is_known_valid_scrutinee(scrut)).unwrap_or(true); MatchCheckCtxt { tcx: self.tcx, + typeck_results: self.typeck_results, param_env: self.param_env, module: self.tcx.parent_module(self.lint_level).to_def_id(), pattern_arena: self.pattern_arena, + dropless_arena: self.dropless_arena, match_lint_level: self.lint_level, whole_match_span, scrut_span, @@ -425,7 +429,8 @@ impl<'thir, 'p, 'tcx> MatchVisitor<'thir, 'p, 'tcx> { let arm = &self.thir.arms[arm]; let got_error = self.with_lint_level(arm.lint_level, |this| { let Ok(pat) = this.lower_pattern(&cx, &arm.pattern) else { return true }; - let arm = MatchArm { pat, hir_id: this.lint_level, has_guard: arm.guard.is_some() }; + let arm = + MatchArm { pat, arm_data: this.lint_level, has_guard: arm.guard.is_some() }; tarms.push(arm); false }); @@ -548,7 +553,7 @@ impl<'thir, 'p, 'tcx> MatchVisitor<'thir, 'p, 'tcx> { ) -> Result<(MatchCheckCtxt<'p, 'tcx>, UsefulnessReport<'p, 'tcx>), ErrorGuaranteed> { let cx = self.new_cx(refutability, None, scrut, pat.span); let pat = self.lower_pattern(&cx, pat)?; - let arms = [MatchArm { pat, hir_id: self.lint_level, has_guard: false }]; + let arms = [MatchArm { pat, arm_data: self.lint_level, has_guard: false }]; let report = analyze_match(&cx, &arms, pat.ty()); Ok((cx, report)) } @@ -847,34 +852,34 @@ fn report_arm_reachability<'p, 'tcx>( ); }; - use Usefulness::*; let mut catchall = None; for (arm, is_useful) in report.arm_usefulness.iter() { match is_useful { - Redundant => report_unreachable_pattern(arm.pat.span(), arm.hir_id, catchall), - Useful(redundant_spans) if redundant_spans.is_empty() => {} + Usefulness::Redundant => { + report_unreachable_pattern(*arm.pat.data().unwrap(), arm.arm_data, catchall) + } + Usefulness::Useful(redundant_subpats) if redundant_subpats.is_empty() => {} // The arm is reachable, but contains redundant subpatterns (from or-patterns). - Useful(redundant_spans) => { - let mut redundant_spans = redundant_spans.clone(); + Usefulness::Useful(redundant_subpats) => { + let mut redundant_subpats = redundant_subpats.clone(); // Emit lints in the order in which they occur in the file. - redundant_spans.sort_unstable(); - for span in redundant_spans { - report_unreachable_pattern(span, arm.hir_id, None); + redundant_subpats.sort_unstable_by_key(|pat| pat.data()); + for pat in redundant_subpats { + report_unreachable_pattern(*pat.data().unwrap(), arm.arm_data, None); } } } if !arm.has_guard && catchall.is_none() && pat_is_catchall(arm.pat) { - catchall = Some(arm.pat.span()); + catchall = Some(*arm.pat.data().unwrap()); } } } /// Checks for common cases of "catchall" patterns that may not be intended as such. fn pat_is_catchall(pat: &DeconstructedPat<'_, '_>) -> bool { - use Constructor::*; match pat.ctor() { - Wildcard => true, - Single => pat.iter_fields().all(|pat| pat_is_catchall(pat)), + Constructor::Wildcard => true, + Constructor::Struct | Constructor::Ref => pat.iter_fields().all(|pat| pat_is_catchall(pat)), _ => false, } } @@ -885,7 +890,7 @@ fn report_non_exhaustive_match<'p, 'tcx>( thir: &Thir<'tcx>, scrut_ty: Ty<'tcx>, sp: Span, - witnesses: Vec<WitnessPat<'tcx>>, + witnesses: Vec<WitnessPat<'p, 'tcx>>, arms: &[ArmId], expr_span: Span, ) -> ErrorGuaranteed { @@ -1082,10 +1087,10 @@ fn report_non_exhaustive_match<'p, 'tcx>( fn joined_uncovered_patterns<'p, 'tcx>( cx: &MatchCheckCtxt<'p, 'tcx>, - witnesses: &[WitnessPat<'tcx>], + witnesses: &[WitnessPat<'p, 'tcx>], ) -> String { const LIMIT: usize = 3; - let pat_to_str = |pat: &WitnessPat<'tcx>| cx.hoist_witness_pat(pat).to_string(); + let pat_to_str = |pat: &WitnessPat<'p, 'tcx>| cx.hoist_witness_pat(pat).to_string(); match witnesses { [] => bug!(), [witness] => format!("`{}`", cx.hoist_witness_pat(witness)), @@ -1103,7 +1108,7 @@ fn joined_uncovered_patterns<'p, 'tcx>( fn collect_non_exhaustive_tys<'tcx>( cx: &MatchCheckCtxt<'_, 'tcx>, - pat: &WitnessPat<'tcx>, + pat: &WitnessPat<'_, 'tcx>, non_exhaustive_tys: &mut FxIndexSet<Ty<'tcx>>, ) { if matches!(pat.ctor(), Constructor::NonExhaustive) { @@ -1122,7 +1127,7 @@ fn collect_non_exhaustive_tys<'tcx>( fn report_adt_defined_here<'tcx>( tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, - witnesses: &[WitnessPat<'tcx>], + witnesses: &[WitnessPat<'_, 'tcx>], point_at_non_local_ty: bool, ) -> Option<AdtDefinedHere<'tcx>> { let ty = ty.peel_refs(); @@ -1144,15 +1149,14 @@ fn report_adt_defined_here<'tcx>( Some(AdtDefinedHere { adt_def_span, ty, variants }) } -fn maybe_point_at_variant<'a, 'tcx: 'a>( +fn maybe_point_at_variant<'a, 'p: 'a, 'tcx: 'p>( tcx: TyCtxt<'tcx>, def: AdtDef<'tcx>, - patterns: impl Iterator<Item = &'a WitnessPat<'tcx>>, + patterns: impl Iterator<Item = &'a WitnessPat<'p, 'tcx>>, ) -> Vec<Span> { - use Constructor::*; let mut covered = vec![]; for pattern in patterns { - if let Variant(variant_index) = pattern.ctor() { + if let Constructor::Variant(variant_index) = pattern.ctor() { if let ty::Adt(this_def, _) = pattern.ty().kind() && this_def.did() != def.did() { diff --git a/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs b/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs index 646c70eb88f..595c2ff5bf7 100644 --- a/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs +++ b/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs @@ -81,17 +81,17 @@ impl<'tcx, 'a> crate::GenKillAnalysis<'tcx> for MaybeStorageLive<'a> { } #[derive(Clone)] -pub struct MaybeStorageDead { - always_live_locals: BitSet<Local>, +pub struct MaybeStorageDead<'a> { + always_live_locals: Cow<'a, BitSet<Local>>, } -impl MaybeStorageDead { - pub fn new(always_live_locals: BitSet<Local>) -> Self { +impl<'a> MaybeStorageDead<'a> { + pub fn new(always_live_locals: Cow<'a, BitSet<Local>>) -> Self { MaybeStorageDead { always_live_locals } } } -impl<'tcx> crate::AnalysisDomain<'tcx> for MaybeStorageDead { +impl<'tcx, 'a> crate::AnalysisDomain<'tcx> for MaybeStorageDead<'a> { type Domain = BitSet<Local>; const NAME: &'static str = "maybe_storage_dead"; @@ -112,7 +112,7 @@ impl<'tcx> crate::AnalysisDomain<'tcx> for MaybeStorageDead { } } -impl<'tcx> crate::GenKillAnalysis<'tcx> for MaybeStorageDead { +impl<'tcx, 'a> crate::GenKillAnalysis<'tcx> for MaybeStorageDead<'a> { type Idx = Local; fn domain_size(&self, body: &Body<'tcx>) -> usize { diff --git a/compiler/rustc_mir_transform/src/coroutine.rs b/compiler/rustc_mir_transform/src/coroutine.rs index d7dd44af7d2..6da102dcb1c 100644 --- a/compiler/rustc_mir_transform/src/coroutine.rs +++ b/compiler/rustc_mir_transform/src/coroutine.rs @@ -59,7 +59,7 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_errors::pluralize; use rustc_hir as hir; use rustc_hir::lang_items::LangItem; -use rustc_hir::CoroutineKind; +use rustc_hir::{CoroutineDesugaring, CoroutineKind}; use rustc_index::bit_set::{BitMatrix, BitSet, GrowableBitSet}; use rustc_index::{Idx, IndexVec}; use rustc_middle::mir::visit::{MutVisitor, PlaceContext, Visitor}; @@ -254,10 +254,12 @@ impl<'tcx> TransformVisitor<'tcx> { let source_info = SourceInfo::outermost(body.span); let none_value = match self.coroutine_kind { - CoroutineKind::Async(_) => span_bug!(body.span, "`Future`s are not fused inherently"), + CoroutineKind::Desugared(CoroutineDesugaring::Async, _) => { + span_bug!(body.span, "`Future`s are not fused inherently") + } CoroutineKind::Coroutine => span_bug!(body.span, "`Coroutine`s cannot be fused"), // `gen` continues return `None` - CoroutineKind::Gen(_) => { + CoroutineKind::Desugared(CoroutineDesugaring::Gen, _) => { let option_def_id = self.tcx.require_lang_item(LangItem::Option, None); Rvalue::Aggregate( Box::new(AggregateKind::Adt( @@ -271,7 +273,7 @@ impl<'tcx> TransformVisitor<'tcx> { ) } // `async gen` continues to return `Poll::Ready(None)` - CoroutineKind::AsyncGen(_) => { + CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, _) => { let ty::Adt(_poll_adt, args) = *self.old_yield_ty.kind() else { bug!() }; let ty::Adt(_option_adt, args) = *args.type_at(0).kind() else { bug!() }; let yield_ty = args.type_at(0); @@ -316,7 +318,7 @@ impl<'tcx> TransformVisitor<'tcx> { statements: &mut Vec<Statement<'tcx>>, ) { let rvalue = match self.coroutine_kind { - CoroutineKind::Async(_) => { + CoroutineKind::Desugared(CoroutineDesugaring::Async, _) => { let poll_def_id = self.tcx.require_lang_item(LangItem::Poll, None); let args = self.tcx.mk_args(&[self.old_ret_ty.into()]); if is_return { @@ -345,7 +347,7 @@ impl<'tcx> TransformVisitor<'tcx> { ) } } - CoroutineKind::Gen(_) => { + CoroutineKind::Desugared(CoroutineDesugaring::Gen, _) => { let option_def_id = self.tcx.require_lang_item(LangItem::Option, None); let args = self.tcx.mk_args(&[self.old_yield_ty.into()]); if is_return { @@ -374,7 +376,7 @@ impl<'tcx> TransformVisitor<'tcx> { ) } } - CoroutineKind::AsyncGen(_) => { + CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, _) => { if is_return { let ty::Adt(_poll_adt, args) = *self.old_yield_ty.kind() else { bug!() }; let ty::Adt(_option_adt, args) = *args.type_at(0).kind() else { bug!() }; @@ -1426,10 +1428,11 @@ fn create_coroutine_resume_function<'tcx>( if can_return { let block = match coroutine_kind { - CoroutineKind::Async(_) | CoroutineKind::Coroutine => { + CoroutineKind::Desugared(CoroutineDesugaring::Async, _) | CoroutineKind::Coroutine => { insert_panic_block(tcx, body, ResumedAfterReturn(coroutine_kind)) } - CoroutineKind::AsyncGen(_) | CoroutineKind::Gen(_) => { + CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, _) + | CoroutineKind::Desugared(CoroutineDesugaring::Gen, _) => { transform.insert_none_ret_block(body) } }; @@ -1443,7 +1446,7 @@ fn create_coroutine_resume_function<'tcx>( match coroutine_kind { // Iterator::next doesn't accept a pinned argument, // unlike for all other coroutine kinds. - CoroutineKind::Gen(_) => {} + CoroutineKind::Desugared(CoroutineDesugaring::Gen, _) => {} _ => { make_coroutine_state_argument_pinned(tcx, body); } @@ -1609,25 +1612,34 @@ impl<'tcx> MirPass<'tcx> for StateTransform { } }; - let is_async_kind = matches!(body.coroutine_kind(), Some(CoroutineKind::Async(_))); - let is_async_gen_kind = matches!(body.coroutine_kind(), Some(CoroutineKind::AsyncGen(_))); - let is_gen_kind = matches!(body.coroutine_kind(), Some(CoroutineKind::Gen(_))); + let is_async_kind = matches!( + body.coroutine_kind(), + Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)) + ); + let is_async_gen_kind = matches!( + body.coroutine_kind(), + Some(CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, _)) + ); + let is_gen_kind = matches!( + body.coroutine_kind(), + Some(CoroutineKind::Desugared(CoroutineDesugaring::Gen, _)) + ); let new_ret_ty = match body.coroutine_kind().unwrap() { - CoroutineKind::Async(_) => { + CoroutineKind::Desugared(CoroutineDesugaring::Async, _) => { // Compute Poll<return_ty> let poll_did = tcx.require_lang_item(LangItem::Poll, None); let poll_adt_ref = tcx.adt_def(poll_did); let poll_args = tcx.mk_args(&[old_ret_ty.into()]); Ty::new_adt(tcx, poll_adt_ref, poll_args) } - CoroutineKind::Gen(_) => { + CoroutineKind::Desugared(CoroutineDesugaring::Gen, _) => { // Compute Option<yield_ty> let option_did = tcx.require_lang_item(LangItem::Option, None); let option_adt_ref = tcx.adt_def(option_did); let option_args = tcx.mk_args(&[old_yield_ty.into()]); Ty::new_adt(tcx, option_adt_ref, option_args) } - CoroutineKind::AsyncGen(_) => { + CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, _) => { // The yield ty is already `Poll<Option<yield_ty>>` old_yield_ty } diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs index 65a0924f1c9..c5a3391286a 100644 --- a/compiler/rustc_mir_transform/src/coverage/mod.rs +++ b/compiler/rustc_mir_transform/src/coverage/mod.rs @@ -68,43 +68,34 @@ impl<'tcx> MirPass<'tcx> for InstrumentCoverage { struct Instrumentor<'a, 'tcx> { tcx: TyCtxt<'tcx>, mir_body: &'a mut mir::Body<'tcx>, - fn_sig_span: Span, - body_span: Span, - function_source_hash: u64, + hir_info: ExtractedHirInfo, basic_coverage_blocks: CoverageGraph, coverage_counters: CoverageCounters, } impl<'a, 'tcx> Instrumentor<'a, 'tcx> { fn new(tcx: TyCtxt<'tcx>, mir_body: &'a mut mir::Body<'tcx>) -> Self { - let hir_info @ ExtractedHirInfo { function_source_hash, fn_sig_span, body_span } = - extract_hir_info(tcx, mir_body.source.def_id().expect_local()); + let hir_info = extract_hir_info(tcx, mir_body.source.def_id().expect_local()); debug!(?hir_info, "instrumenting {:?}", mir_body.source.def_id()); let basic_coverage_blocks = CoverageGraph::from_mir(mir_body); let coverage_counters = CoverageCounters::new(&basic_coverage_blocks); - Self { - tcx, - mir_body, - fn_sig_span, - body_span, - function_source_hash, - basic_coverage_blocks, - coverage_counters, - } + Self { tcx, mir_body, hir_info, basic_coverage_blocks, coverage_counters } } fn inject_counters(&'a mut self) { //////////////////////////////////////////////////// // Compute coverage spans from the `CoverageGraph`. - let coverage_spans = CoverageSpans::generate_coverage_spans( + let Some(coverage_spans) = CoverageSpans::generate_coverage_spans( self.mir_body, - self.fn_sig_span, - self.body_span, + &self.hir_info, &self.basic_coverage_blocks, - ); + ) else { + // No relevant spans were found in MIR, so skip instrumenting this function. + return; + }; //////////////////////////////////////////////////// // Create an optimized mix of `Counter`s and `Expression`s for the `CoverageGraph`. Ensure @@ -118,7 +109,7 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> { let mappings = self.create_mappings_and_inject_coverage_statements(&coverage_spans); self.mir_body.function_coverage_info = Some(Box::new(FunctionCoverageInfo { - function_source_hash: self.function_source_hash, + function_source_hash: self.hir_info.function_source_hash, num_counters: self.coverage_counters.num_counters(), expressions: self.coverage_counters.take_expressions(), mappings, @@ -133,7 +124,7 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> { coverage_spans: &CoverageSpans, ) -> Vec<Mapping> { let source_map = self.tcx.sess.source_map(); - let body_span = self.body_span; + let body_span = self.hir_info.body_span; let source_file = source_map.lookup_source_file(body_span.lo()); use rustc_session::RemapFileNameExt; @@ -308,6 +299,7 @@ fn is_eligible_for_coverage(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool { #[derive(Debug)] struct ExtractedHirInfo { function_source_hash: u64, + is_async_fn: bool, fn_sig_span: Span, body_span: Span, } @@ -321,6 +313,7 @@ fn extract_hir_info<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> ExtractedHir hir::map::associated_body(hir_node).expect("HIR node is a function with body"); let hir_body = tcx.hir().body(fn_body_id); + let is_async_fn = hir_node.fn_sig().is_some_and(|fn_sig| fn_sig.header.is_async()); let body_span = get_body_span(tcx, hir_body, def_id); // The actual signature span is only used if it has the same context and @@ -342,7 +335,7 @@ fn extract_hir_info<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> ExtractedHir let function_source_hash = hash_mir_source(tcx, hir_body); - ExtractedHirInfo { function_source_hash, fn_sig_span, body_span } + ExtractedHirInfo { function_source_hash, is_async_fn, fn_sig_span, body_span } } fn get_body_span<'tcx>( diff --git a/compiler/rustc_mir_transform/src/coverage/spans.rs b/compiler/rustc_mir_transform/src/coverage/spans.rs index 05ad14f1525..ae43a18ad4e 100644 --- a/compiler/rustc_mir_transform/src/coverage/spans.rs +++ b/compiler/rustc_mir_transform/src/coverage/spans.rs @@ -6,6 +6,7 @@ use rustc_middle::mir; use rustc_span::{BytePos, ExpnKind, MacroKind, Span, Symbol, DUMMY_SP}; use super::graph::{BasicCoverageBlock, CoverageGraph, START_BCB}; +use crate::coverage::ExtractedHirInfo; mod from_mir; @@ -15,26 +16,32 @@ pub(super) struct CoverageSpans { } impl CoverageSpans { + /// Extracts coverage-relevant spans from MIR, and associates them with + /// their corresponding BCBs. + /// + /// Returns `None` if no coverage-relevant spans could be extracted. pub(super) fn generate_coverage_spans( mir_body: &mir::Body<'_>, - fn_sig_span: Span, - body_span: Span, + hir_info: &ExtractedHirInfo, basic_coverage_blocks: &CoverageGraph, - ) -> Self { + ) -> Option<Self> { let coverage_spans = CoverageSpansGenerator::generate_coverage_spans( mir_body, - fn_sig_span, - body_span, + hir_info, basic_coverage_blocks, ); + if coverage_spans.is_empty() { + return None; + } + // Group the coverage spans by BCB, with the BCBs in sorted order. let mut bcb_to_spans = IndexVec::from_elem_n(Vec::new(), basic_coverage_blocks.num_nodes()); for CoverageSpan { bcb, span, .. } in coverage_spans { bcb_to_spans[bcb].push(span); } - Self { bcb_to_spans } + Some(Self { bcb_to_spans }) } pub(super) fn bcb_has_coverage_spans(&self, bcb: BasicCoverageBlock) -> bool { @@ -222,19 +229,17 @@ impl<'a> CoverageSpansGenerator<'a> { /// to be). pub(super) fn generate_coverage_spans( mir_body: &mir::Body<'_>, - fn_sig_span: Span, // Ensured to be same SourceFile and SyntaxContext as `body_span` - body_span: Span, + hir_info: &ExtractedHirInfo, basic_coverage_blocks: &'a CoverageGraph, ) -> Vec<CoverageSpan> { let sorted_spans = from_mir::mir_to_initial_sorted_coverage_spans( mir_body, - fn_sig_span, - body_span, + hir_info, basic_coverage_blocks, ); let coverage_spans = Self { - body_span, + body_span: hir_info.body_span, basic_coverage_blocks, sorted_spans_iter: sorted_spans.into_iter(), some_curr: None, diff --git a/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs b/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs index eab9a9c98f8..a9c4ea33d0e 100644 --- a/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs +++ b/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs @@ -7,13 +7,22 @@ use rustc_span::Span; use crate::coverage::graph::{BasicCoverageBlock, BasicCoverageBlockData, CoverageGraph}; use crate::coverage::spans::CoverageSpan; +use crate::coverage::ExtractedHirInfo; pub(super) fn mir_to_initial_sorted_coverage_spans( mir_body: &mir::Body<'_>, - fn_sig_span: Span, - body_span: Span, + hir_info: &ExtractedHirInfo, basic_coverage_blocks: &CoverageGraph, ) -> Vec<CoverageSpan> { + let &ExtractedHirInfo { is_async_fn, fn_sig_span, body_span, .. } = hir_info; + if is_async_fn { + // An async function desugars into a function that returns a future, + // with the user code wrapped in a closure. Any spans in the desugared + // outer function will be unhelpful, so just produce a single span + // associating the function signature with its entry BCB. + return vec![CoverageSpan::for_fn_sig(fn_sig_span)]; + } + let mut initial_spans = Vec::with_capacity(mir_body.basic_blocks.len() * 2); for (bcb, bcb_data) in basic_coverage_blocks.iter_enumerated() { initial_spans.extend(bcb_to_initial_coverage_spans(mir_body, body_span, bcb, bcb_data)); @@ -44,16 +53,6 @@ pub(super) fn mir_to_initial_sorted_coverage_spans( .then_with(|| Ord::cmp(&a.is_closure, &b.is_closure).reverse()) }); - // The desugaring of an async function includes a closure containing the - // original function body, and a terminator that returns the `impl Future`. - // That terminator will cause a confusing coverage count for the function's - // closing brace, so discard everything after the body closure span. - if let Some(body_closure_index) = - initial_spans.iter().rposition(|covspan| covspan.is_closure && covspan.span == body_span) - { - initial_spans.truncate(body_closure_index + 1); - } - initial_spans } diff --git a/compiler/rustc_mir_transform/src/errors.rs b/compiler/rustc_mir_transform/src/errors.rs index 928db471298..17916e16daf 100644 --- a/compiler/rustc_mir_transform/src/errors.rs +++ b/compiler/rustc_mir_transform/src/errors.rs @@ -1,8 +1,8 @@ use std::borrow::Cow; use rustc_errors::{ - Applicability, DecorateLint, DiagnosticArgValue, DiagnosticBuilder, DiagnosticMessage, - EmissionGuarantee, ErrorGuaranteed, Handler, IntoDiagnostic, + Applicability, DecorateLint, DiagCtxt, DiagnosticArgValue, DiagnosticBuilder, + DiagnosticMessage, EmissionGuarantee, IntoDiagnostic, Level, }; use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; use rustc_middle::mir::{AssertKind, UnsafetyViolationDetails}; @@ -62,14 +62,14 @@ pub(crate) struct RequiresUnsafe { // so we need to eagerly translate the label here, which isn't supported by the derive API // We could also exhaustively list out the primary messages for all unsafe violations, // but this would result in a lot of duplication. -impl<'sess> IntoDiagnostic<'sess> for RequiresUnsafe { +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for RequiresUnsafe { #[track_caller] - fn into_diagnostic(self, handler: &'sess Handler) -> DiagnosticBuilder<'sess, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::mir_transform_requires_unsafe); + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { + let mut diag = DiagnosticBuilder::new(dcx, level, fluent::mir_transform_requires_unsafe); diag.code(rustc_errors::DiagnosticId::Error("E0133".to_string())); diag.set_span(self.span); diag.span_label(self.span, self.details.label()); - let desc = handler.eagerly_translate_to_string(self.details.label(), [].into_iter()); + let desc = dcx.eagerly_translate_to_string(self.details.label(), [].into_iter()); diag.set_arg("details", desc); diag.set_arg("op_in_unsafe_fn_allowed", self.op_in_unsafe_fn_allowed); self.details.add_subdiagnostics(&mut diag); @@ -181,8 +181,8 @@ pub(crate) struct UnsafeOpInUnsafeFn { impl<'a> DecorateLint<'a, ()> for UnsafeOpInUnsafeFn { #[track_caller] fn decorate_lint<'b>(self, diag: &'b mut DiagnosticBuilder<'a, ()>) { - let handler = diag.handler().expect("lint should not yet be emitted"); - let desc = handler.eagerly_translate_to_string(self.details.label(), [].into_iter()); + let dcx = diag.dcx().expect("lint should not yet be emitted"); + let desc = dcx.eagerly_translate_to_string(self.details.label(), [].into_iter()); diag.set_arg("details", desc); diag.span_label(self.details.span, self.details.label()); self.details.add_subdiagnostics(diag); diff --git a/compiler/rustc_mir_transform/src/gvn.rs b/compiler/rustc_mir_transform/src/gvn.rs index b21988e179d..3b8adf7e86b 100644 --- a/compiler/rustc_mir_transform/src/gvn.rs +++ b/compiler/rustc_mir_transform/src/gvn.rs @@ -644,12 +644,10 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { { if let Some(offset) = self.evaluated[idx].as_ref() && let Ok(offset) = self.ecx.read_target_usize(offset) + && let Some(min_length) = offset.checked_add(1) { - projection.to_mut()[i] = ProjectionElem::ConstantIndex { - offset, - min_length: offset + 1, - from_end: false, - }; + projection.to_mut()[i] = + ProjectionElem::ConstantIndex { offset, min_length, from_end: false }; } else if let Some(new_idx) = self.try_as_local(idx, location) { projection.to_mut()[i] = ProjectionElem::Index(new_idx); self.reused_locals.insert(new_idx); diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs index 89e897191e8..98d4d96d0c7 100644 --- a/compiler/rustc_mir_transform/src/lib.rs +++ b/compiler/rustc_mir_transform/src/lib.rs @@ -86,6 +86,7 @@ pub mod inline; mod instsimplify; mod jump_threading; mod large_enums; +mod lint; mod lower_intrinsics; mod lower_slice_len; mod match_branches; diff --git a/compiler/rustc_mir_transform/src/lint.rs b/compiler/rustc_mir_transform/src/lint.rs new file mode 100644 index 00000000000..3940d0ddbf3 --- /dev/null +++ b/compiler/rustc_mir_transform/src/lint.rs @@ -0,0 +1,119 @@ +//! This pass statically detects code which has undefined behaviour or is likely to be erroneous. +//! It can be used to locate problems in MIR building or optimizations. It assumes that all code +//! can be executed, so it has false positives. +use rustc_index::bit_set::BitSet; +use rustc_middle::mir::visit::{PlaceContext, Visitor}; +use rustc_middle::mir::*; +use rustc_middle::ty::TyCtxt; +use rustc_mir_dataflow::impls::{MaybeStorageDead, MaybeStorageLive}; +use rustc_mir_dataflow::storage::always_storage_live_locals; +use rustc_mir_dataflow::{Analysis, ResultsCursor}; +use std::borrow::Cow; + +pub fn lint_body<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>, when: String) { + let reachable_blocks = traversal::reachable_as_bitset(body); + let always_live_locals = &always_storage_live_locals(body); + + let maybe_storage_live = MaybeStorageLive::new(Cow::Borrowed(always_live_locals)) + .into_engine(tcx, body) + .iterate_to_fixpoint() + .into_results_cursor(body); + + let maybe_storage_dead = MaybeStorageDead::new(Cow::Borrowed(always_live_locals)) + .into_engine(tcx, body) + .iterate_to_fixpoint() + .into_results_cursor(body); + + Lint { + tcx, + when, + body, + is_fn_like: tcx.def_kind(body.source.def_id()).is_fn_like(), + always_live_locals, + reachable_blocks, + maybe_storage_live, + maybe_storage_dead, + } + .visit_body(body); +} + +struct Lint<'a, 'tcx> { + tcx: TyCtxt<'tcx>, + when: String, + body: &'a Body<'tcx>, + is_fn_like: bool, + always_live_locals: &'a BitSet<Local>, + reachable_blocks: BitSet<BasicBlock>, + maybe_storage_live: ResultsCursor<'a, 'tcx, MaybeStorageLive<'a>>, + maybe_storage_dead: ResultsCursor<'a, 'tcx, MaybeStorageDead<'a>>, +} + +impl<'a, 'tcx> Lint<'a, 'tcx> { + #[track_caller] + fn fail(&self, location: Location, msg: impl AsRef<str>) { + let span = self.body.source_info(location).span; + self.tcx.sess.dcx().span_delayed_bug( + span, + format!( + "broken MIR in {:?} ({}) at {:?}:\n{}", + self.body.source.instance, + self.when, + location, + msg.as_ref() + ), + ); + } +} + +impl<'a, 'tcx> Visitor<'tcx> for Lint<'a, 'tcx> { + fn visit_local(&mut self, local: Local, context: PlaceContext, location: Location) { + if self.reachable_blocks.contains(location.block) && context.is_use() { + self.maybe_storage_dead.seek_after_primary_effect(location); + if self.maybe_storage_dead.get().contains(local) { + self.fail(location, format!("use of local {local:?}, which has no storage here")); + } + } + } + + fn visit_statement(&mut self, statement: &Statement<'tcx>, location: Location) { + match statement.kind { + StatementKind::StorageLive(local) => { + if self.reachable_blocks.contains(location.block) { + self.maybe_storage_live.seek_before_primary_effect(location); + if self.maybe_storage_live.get().contains(local) { + self.fail( + location, + format!("StorageLive({local:?}) which already has storage here"), + ); + } + } + } + _ => {} + } + + self.super_statement(statement, location); + } + + fn visit_terminator(&mut self, terminator: &Terminator<'tcx>, location: Location) { + match terminator.kind { + TerminatorKind::Return => { + if self.is_fn_like && self.reachable_blocks.contains(location.block) { + self.maybe_storage_live.seek_after_primary_effect(location); + for local in self.maybe_storage_live.get().iter() { + if !self.always_live_locals.contains(local) { + self.fail( + location, + format!( + "local {local:?} still has storage when returning from function" + ), + ); + } + } + } + } + _ => {} + } + + self.super_terminator(terminator, location); + } +} diff --git a/compiler/rustc_mir_transform/src/pass_manager.rs b/compiler/rustc_mir_transform/src/pass_manager.rs index c4eca18ff27..1da1c1920b2 100644 --- a/compiler/rustc_mir_transform/src/pass_manager.rs +++ b/compiler/rustc_mir_transform/src/pass_manager.rs @@ -2,7 +2,7 @@ use rustc_middle::mir::{self, Body, MirPhase, RuntimePhase}; use rustc_middle::ty::TyCtxt; use rustc_session::Session; -use crate::{validate, MirPass}; +use crate::{lint::lint_body, validate, MirPass}; /// Just like `MirPass`, except it cannot mutate `Body`. pub trait MirLint<'tcx> { @@ -109,6 +109,7 @@ fn run_passes_inner<'tcx>( phase_change: Option<MirPhase>, validate_each: bool, ) { + let lint = tcx.sess.opts.unstable_opts.lint_mir & !body.should_skip(); let validate = validate_each & tcx.sess.opts.unstable_opts.validate_mir & !body.should_skip(); let overridden_passes = &tcx.sess.opts.unstable_opts.mir_enable_passes; trace!(?overridden_passes); @@ -131,6 +132,9 @@ fn run_passes_inner<'tcx>( if validate { validate_body(tcx, body, format!("before pass {name}")); } + if lint { + lint_body(tcx, body, format!("before pass {name}")); + } if let Some(prof_arg) = &prof_arg { tcx.sess @@ -147,6 +151,9 @@ fn run_passes_inner<'tcx>( if validate { validate_body(tcx, body, format!("after pass {name}")); } + if lint { + lint_body(tcx, body, format!("after pass {name}")); + } body.pass_count += 1; } @@ -164,6 +171,9 @@ fn run_passes_inner<'tcx>( if validate || new_phase == MirPhase::Runtime(RuntimePhase::Optimized) { validate_body(tcx, body, format!("after phase change to {}", new_phase.name())); } + if lint { + lint_body(tcx, body, format!("after phase change to {}", new_phase.name())); + } body.pass_count = 1; } diff --git a/compiler/rustc_mir_transform/src/ref_prop.rs b/compiler/rustc_mir_transform/src/ref_prop.rs index f13ab5b0f1f..05a3ac3cc75 100644 --- a/compiler/rustc_mir_transform/src/ref_prop.rs +++ b/compiler/rustc_mir_transform/src/ref_prop.rs @@ -7,6 +7,7 @@ use rustc_middle::ty::TyCtxt; use rustc_mir_dataflow::impls::MaybeStorageDead; use rustc_mir_dataflow::storage::always_storage_live_locals; use rustc_mir_dataflow::Analysis; +use std::borrow::Cow; use crate::ssa::{SsaLocals, StorageLiveLocals}; @@ -120,7 +121,7 @@ fn compute_replacement<'tcx>( // Compute `MaybeStorageDead` dataflow to check that we only replace when the pointee is // definitely live. - let mut maybe_dead = MaybeStorageDead::new(always_live_locals) + let mut maybe_dead = MaybeStorageDead::new(Cow::Owned(always_live_locals)) .into_engine(tcx, body) .iterate_to_fixpoint() .into_results_cursor(body); diff --git a/compiler/rustc_monomorphize/src/collector.rs b/compiler/rustc_monomorphize/src/collector.rs index feceff10f95..a68bfcd06d5 100644 --- a/compiler/rustc_monomorphize/src/collector.rs +++ b/compiler/rustc_monomorphize/src/collector.rs @@ -371,7 +371,7 @@ fn collect_items_rec<'tcx>( // current step of mono items collection. // // FIXME: don't rely on global state, instead bubble up errors. Note: this is very hard to do. - let error_count = tcx.sess.diagnostic().err_count(); + let error_count = tcx.sess.dcx().err_count(); match starting_item.node { MonoItem::Static(def_id) => { @@ -459,7 +459,7 @@ fn collect_items_rec<'tcx>( // Check for PMEs and emit a diagnostic if one happened. To try to show relevant edges of the // mono item graph. - if tcx.sess.diagnostic().err_count() > error_count + if tcx.sess.dcx().err_count() > error_count && starting_item.node.is_generic_fn(tcx) && starting_item.node.is_user_defined() { diff --git a/compiler/rustc_monomorphize/src/errors.rs b/compiler/rustc_monomorphize/src/errors.rs index d242a7baec1..592e71251b8 100644 --- a/compiler/rustc_monomorphize/src/errors.rs +++ b/compiler/rustc_monomorphize/src/errors.rs @@ -1,8 +1,7 @@ use std::path::PathBuf; use crate::fluent_generated as fluent; -use rustc_errors::ErrorGuaranteed; -use rustc_errors::IntoDiagnostic; +use rustc_errors::{DiagCtxt, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, Level}; use rustc_macros::{Diagnostic, LintDiagnostic}; use rustc_span::{Span, Symbol}; @@ -47,13 +46,11 @@ pub struct UnusedGenericParamsHint { pub param_names: Vec<String>, } -impl IntoDiagnostic<'_> for UnusedGenericParamsHint { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for UnusedGenericParamsHint { #[track_caller] - fn into_diagnostic( - self, - handler: &'_ rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::monomorphize_unused_generic_params); + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = + DiagnosticBuilder::new(dcx, level, fluent::monomorphize_unused_generic_params); diag.set_span(self.span); for (span, name) in self.param_spans.into_iter().zip(self.param_names) { // FIXME: I can figure out how to do a label with a fluent string with a fixed message, diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs index c51a5c095ee..53cce9e2883 100644 --- a/compiler/rustc_parse/src/errors.rs +++ b/compiler/rustc_parse/src/errors.rs @@ -2,7 +2,10 @@ use std::borrow::Cow; use rustc_ast::token::Token; use rustc_ast::{Path, Visibility}; -use rustc_errors::{AddToDiagnostic, Applicability, ErrorGuaranteed, IntoDiagnostic}; +use rustc_errors::{ + AddToDiagnostic, Applicability, DiagCtxt, DiagnosticBuilder, IntoDiagnostic, Level, + SubdiagnosticMessage, +}; use rustc_macros::{Diagnostic, Subdiagnostic}; use rustc_session::errors::ExprParenthesesNeeded; use rustc_span::edition::{Edition, LATEST_STABLE_EDITION}; @@ -1040,25 +1043,28 @@ pub(crate) struct ExpectedIdentifier { impl<'a> IntoDiagnostic<'a> for ExpectedIdentifier { #[track_caller] - fn into_diagnostic( - self, - handler: &'a rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'a, ErrorGuaranteed> { + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a> { let token_descr = TokenDescription::from_token(&self.token); - let mut diag = handler.struct_err(match token_descr { - Some(TokenDescription::ReservedIdentifier) => { - fluent::parse_expected_identifier_found_reserved_identifier_str - } - Some(TokenDescription::Keyword) => fluent::parse_expected_identifier_found_keyword_str, - Some(TokenDescription::ReservedKeyword) => { - fluent::parse_expected_identifier_found_reserved_keyword_str - } - Some(TokenDescription::DocComment) => { - fluent::parse_expected_identifier_found_doc_comment_str - } - None => fluent::parse_expected_identifier_found_str, - }); + let mut diag = DiagnosticBuilder::new( + dcx, + level, + match token_descr { + Some(TokenDescription::ReservedIdentifier) => { + fluent::parse_expected_identifier_found_reserved_identifier_str + } + Some(TokenDescription::Keyword) => { + fluent::parse_expected_identifier_found_keyword_str + } + Some(TokenDescription::ReservedKeyword) => { + fluent::parse_expected_identifier_found_reserved_keyword_str + } + Some(TokenDescription::DocComment) => { + fluent::parse_expected_identifier_found_doc_comment_str + } + None => fluent::parse_expected_identifier_found_str, + }, + ); diag.set_span(self.span); diag.set_arg("token", self.token); @@ -1097,23 +1103,26 @@ pub(crate) struct ExpectedSemi { impl<'a> IntoDiagnostic<'a> for ExpectedSemi { #[track_caller] - fn into_diagnostic( - self, - handler: &'a rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'a, ErrorGuaranteed> { + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a> { let token_descr = TokenDescription::from_token(&self.token); - let mut diag = handler.struct_err(match token_descr { - Some(TokenDescription::ReservedIdentifier) => { - fluent::parse_expected_semi_found_reserved_identifier_str - } - Some(TokenDescription::Keyword) => fluent::parse_expected_semi_found_keyword_str, - Some(TokenDescription::ReservedKeyword) => { - fluent::parse_expected_semi_found_reserved_keyword_str - } - Some(TokenDescription::DocComment) => fluent::parse_expected_semi_found_doc_comment_str, - None => fluent::parse_expected_semi_found_str, - }); + let mut diag = DiagnosticBuilder::new( + dcx, + level, + match token_descr { + Some(TokenDescription::ReservedIdentifier) => { + fluent::parse_expected_semi_found_reserved_identifier_str + } + Some(TokenDescription::Keyword) => fluent::parse_expected_semi_found_keyword_str, + Some(TokenDescription::ReservedKeyword) => { + fluent::parse_expected_semi_found_reserved_keyword_str + } + Some(TokenDescription::DocComment) => { + fluent::parse_expected_semi_found_doc_comment_str + } + None => fluent::parse_expected_semi_found_str, + }, + ); diag.set_span(self.span); diag.set_arg("token", self.token); @@ -1436,10 +1445,7 @@ pub(crate) struct FnTraitMissingParen { impl AddToDiagnostic for FnTraitMissingParen { fn add_to_diagnostic_with<F>(self, diag: &mut rustc_errors::Diagnostic, _: F) where - F: Fn( - &mut rustc_errors::Diagnostic, - rustc_errors::SubdiagnosticMessage, - ) -> rustc_errors::SubdiagnosticMessage, + F: Fn(&mut rustc_errors::Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage, { diag.span_label(self.span, crate::fluent_generated::parse_fn_trait_missing_paren); let applicability = if self.machine_applicable { diff --git a/compiler/rustc_parse/src/lexer/mod.rs b/compiler/rustc_parse/src/lexer/mod.rs index b1dc1f98777..59bc0eeb1c5 100644 --- a/compiler/rustc_parse/src/lexer/mod.rs +++ b/compiler/rustc_parse/src/lexer/mod.rs @@ -7,7 +7,9 @@ use rustc_ast::ast::{self, AttrStyle}; use rustc_ast::token::{self, CommentKind, Delimiter, Token, TokenKind}; use rustc_ast::tokenstream::TokenStream; use rustc_ast::util::unicode::contains_text_flow_control_chars; -use rustc_errors::{error_code, Applicability, Diagnostic, DiagnosticBuilder, StashKey}; +use rustc_errors::{ + error_code, Applicability, Diagnostic, DiagnosticBuilder, FatalAbort, StashKey, +}; use rustc_lexer::unescape::{self, EscapeError, Mode}; use rustc_lexer::{Base, DocStyle, RawStrError}; use rustc_lexer::{Cursor, LiteralKind}; @@ -227,7 +229,7 @@ impl<'a> StringReader<'a> { let string = self.str_from(suffix_start); if string == "_" { self.sess - .span_diagnostic + .dcx .emit_err(errors::UnderscoreLiteralSuffix { span: self.mk_sp(suffix_start, self.pos) }); None } else { @@ -344,9 +346,9 @@ impl<'a> StringReader<'a> { to_pos: BytePos, m: &str, c: char, - ) -> DiagnosticBuilder<'a, !> { + ) -> DiagnosticBuilder<'a, FatalAbort> { self.sess - .span_diagnostic + .dcx .struct_span_fatal(self.mk_sp(from_pos, to_pos), format!("{}: {}", m, escaped_char(c))) } @@ -403,7 +405,7 @@ impl<'a> StringReader<'a> { match kind { rustc_lexer::LiteralKind::Char { terminated } => { if !terminated { - self.sess.span_diagnostic.span_fatal_with_code( + self.sess.dcx.span_fatal_with_code( self.mk_sp(start, end), "unterminated character literal", error_code!(E0762), @@ -413,7 +415,7 @@ impl<'a> StringReader<'a> { } rustc_lexer::LiteralKind::Byte { terminated } => { if !terminated { - self.sess.span_diagnostic.span_fatal_with_code( + self.sess.dcx.span_fatal_with_code( self.mk_sp(start + BytePos(1), end), "unterminated byte constant", error_code!(E0763), @@ -423,7 +425,7 @@ impl<'a> StringReader<'a> { } rustc_lexer::LiteralKind::Str { terminated } => { if !terminated { - self.sess.span_diagnostic.span_fatal_with_code( + self.sess.dcx.span_fatal_with_code( self.mk_sp(start, end), "unterminated double quote string", error_code!(E0765), @@ -433,7 +435,7 @@ impl<'a> StringReader<'a> { } rustc_lexer::LiteralKind::ByteStr { terminated } => { if !terminated { - self.sess.span_diagnostic.span_fatal_with_code( + self.sess.dcx.span_fatal_with_code( self.mk_sp(start + BytePos(1), end), "unterminated double quote byte string", error_code!(E0766), @@ -443,7 +445,7 @@ impl<'a> StringReader<'a> { } rustc_lexer::LiteralKind::CStr { terminated } => { if !terminated { - self.sess.span_diagnostic.span_fatal_with_code( + self.sess.dcx.span_fatal_with_code( self.mk_sp(start + BytePos(1), end), "unterminated C string", error_code!(E0767), @@ -578,7 +580,7 @@ impl<'a> StringReader<'a> { possible_offset: Option<u32>, found_terminators: u32, ) -> ! { - let mut err = self.sess.span_diagnostic.struct_span_fatal_with_code( + let mut err = self.sess.dcx.struct_span_fatal_with_code( self.mk_sp(start, start), "unterminated raw string", error_code!(E0748), @@ -614,7 +616,7 @@ impl<'a> StringReader<'a> { None => "unterminated block comment", }; let last_bpos = self.pos; - let mut err = self.sess.span_diagnostic.struct_span_fatal_with_code( + let mut err = self.sess.dcx.struct_span_fatal_with_code( self.mk_sp(start, last_bpos), msg, error_code!(E0758), @@ -719,7 +721,7 @@ impl<'a> StringReader<'a> { has_fatal_err = true; } emit_unescape_error( - &self.sess.span_diagnostic, + &self.sess.dcx, lit_content, span_with_quotes, span, diff --git a/compiler/rustc_parse/src/lexer/tokentrees.rs b/compiler/rustc_parse/src/lexer/tokentrees.rs index 8cbadc26635..2bc2789a4f7 100644 --- a/compiler/rustc_parse/src/lexer/tokentrees.rs +++ b/compiler/rustc_parse/src/lexer/tokentrees.rs @@ -73,7 +73,7 @@ impl<'a> TokenTreesReader<'a> { fn eof_err(&mut self) -> PErr<'a> { let msg = "this file contains an unclosed delimiter"; - let mut err = self.string_reader.sess.span_diagnostic.struct_span_err(self.token.span, msg); + let mut err = self.string_reader.sess.dcx.struct_span_err(self.token.span, msg); for &(_, sp) in &self.diag_info.open_braces { err.span_label(sp, "unclosed delimiter"); self.diag_info.unmatched_delims.push(UnmatchedDelim { @@ -290,7 +290,7 @@ impl<'a> TokenTreesReader<'a> { // matching opening delimiter). let token_str = token_to_string(&self.token); let msg = format!("unexpected closing delimiter: `{token_str}`"); - let mut err = self.string_reader.sess.span_diagnostic.struct_span_err(self.token.span, msg); + let mut err = self.string_reader.sess.dcx.struct_span_err(self.token.span, msg); report_suspicious_mismatch_block( &mut err, diff --git a/compiler/rustc_parse/src/lexer/unescape_error_reporting.rs b/compiler/rustc_parse/src/lexer/unescape_error_reporting.rs index 2b4c2e3c250..775082adbe8 100644 --- a/compiler/rustc_parse/src/lexer/unescape_error_reporting.rs +++ b/compiler/rustc_parse/src/lexer/unescape_error_reporting.rs @@ -3,14 +3,14 @@ use std::iter::once; use std::ops::Range; -use rustc_errors::{Applicability, Handler}; +use rustc_errors::{Applicability, DiagCtxt}; use rustc_lexer::unescape::{EscapeError, Mode}; use rustc_span::{BytePos, Span}; use crate::errors::{MoreThanOneCharNote, MoreThanOneCharSugg, NoBraceUnicodeSub, UnescapeError}; pub(crate) fn emit_unescape_error( - handler: &Handler, + dcx: &DiagCtxt, // interior part of the literal, between quotes lit: &str, // full span of the literal, including quotes and any prefix @@ -33,12 +33,10 @@ pub(crate) fn emit_unescape_error( }; match error { EscapeError::LoneSurrogateUnicodeEscape => { - handler - .emit_err(UnescapeError::InvalidUnicodeEscape { span: err_span, surrogate: true }); + dcx.emit_err(UnescapeError::InvalidUnicodeEscape { span: err_span, surrogate: true }); } EscapeError::OutOfRangeUnicodeEscape => { - handler - .emit_err(UnescapeError::InvalidUnicodeEscape { span: err_span, surrogate: false }); + dcx.emit_err(UnescapeError::InvalidUnicodeEscape { span: err_span, surrogate: false }); } EscapeError::MoreThanOneChar => { use unicode_normalization::{char::is_combining_mark, UnicodeNormalization}; @@ -104,7 +102,7 @@ pub(crate) fn emit_unescape_error( sugg, } }); - handler.emit_err(UnescapeError::MoreThanOneChar { + dcx.emit_err(UnescapeError::MoreThanOneChar { span: full_lit_span, note, suggestion: sugg, @@ -112,7 +110,7 @@ pub(crate) fn emit_unescape_error( } EscapeError::EscapeOnlyChar => { let (c, char_span) = last_char(); - handler.emit_err(UnescapeError::EscapeOnlyChar { + dcx.emit_err(UnescapeError::EscapeOnlyChar { span: err_span, char_span, escaped_sugg: c.escape_default().to_string(), @@ -122,11 +120,11 @@ pub(crate) fn emit_unescape_error( } EscapeError::BareCarriageReturn => { let double_quotes = mode.in_double_quotes(); - handler.emit_err(UnescapeError::BareCr { span: err_span, double_quotes }); + dcx.emit_err(UnescapeError::BareCr { span: err_span, double_quotes }); } EscapeError::BareCarriageReturnInRawString => { assert!(mode.in_double_quotes()); - handler.emit_err(UnescapeError::BareCrRawString(err_span)); + dcx.emit_err(UnescapeError::BareCrRawString(err_span)); } EscapeError::InvalidEscape => { let (c, span) = last_char(); @@ -137,7 +135,7 @@ pub(crate) fn emit_unescape_error( "unknown character escape" }; let ec = escaped_char(c); - let mut diag = handler.struct_span_err(span, format!("{label}: `{ec}`")); + let mut diag = dcx.struct_span_err(span, format!("{label}: `{ec}`")); diag.span_label(span, label); if c == '{' || c == '}' && matches!(mode, Mode::Str | Mode::RawStr) { diag.help( @@ -166,13 +164,13 @@ pub(crate) fn emit_unescape_error( diag.emit(); } EscapeError::TooShortHexEscape => { - handler.emit_err(UnescapeError::TooShortHexEscape(err_span)); + dcx.emit_err(UnescapeError::TooShortHexEscape(err_span)); } EscapeError::InvalidCharInHexEscape | EscapeError::InvalidCharInUnicodeEscape => { let (c, span) = last_char(); let is_hex = error == EscapeError::InvalidCharInHexEscape; let ch = escaped_char(c); - handler.emit_err(UnescapeError::InvalidCharInEscape { span, is_hex, ch }); + dcx.emit_err(UnescapeError::InvalidCharInEscape { span, is_hex, ch }); } EscapeError::NonAsciiCharInByte => { let (c, span) = last_char(); @@ -182,7 +180,7 @@ pub(crate) fn emit_unescape_error( Mode::RawByteStr => "raw byte string literal", _ => panic!("non-is_byte literal paired with NonAsciiCharInByte"), }; - let mut err = handler.struct_span_err(span, format!("non-ASCII character in {desc}")); + let mut err = dcx.struct_span_err(span, format!("non-ASCII character in {desc}")); let postfix = if unicode_width::UnicodeWidthChar::width(c).unwrap_or(1) == 0 { format!(" but is {c:?}") } else { @@ -218,21 +216,20 @@ pub(crate) fn emit_unescape_error( err.emit(); } EscapeError::OutOfRangeHexEscape => { - handler.emit_err(UnescapeError::OutOfRangeHexEscape(err_span)); + dcx.emit_err(UnescapeError::OutOfRangeHexEscape(err_span)); } EscapeError::LeadingUnderscoreUnicodeEscape => { let (c, span) = last_char(); - handler.emit_err(UnescapeError::LeadingUnderscoreUnicodeEscape { + dcx.emit_err(UnescapeError::LeadingUnderscoreUnicodeEscape { span, ch: escaped_char(c), }); } EscapeError::OverlongUnicodeEscape => { - handler.emit_err(UnescapeError::OverlongUnicodeEscape(err_span)); + dcx.emit_err(UnescapeError::OverlongUnicodeEscape(err_span)); } EscapeError::UnclosedUnicodeEscape => { - handler - .emit_err(UnescapeError::UnclosedUnicodeEscape(err_span, err_span.shrink_to_hi())); + dcx.emit_err(UnescapeError::UnclosedUnicodeEscape(err_span, err_span.shrink_to_hi())); } EscapeError::NoBraceInUnicodeEscape => { let mut suggestion = "\\u{".to_owned(); @@ -251,30 +248,30 @@ pub(crate) fn emit_unescape_error( } else { (Some(err_span), NoBraceUnicodeSub::Help) }; - handler.emit_err(UnescapeError::NoBraceInUnicodeEscape { span: err_span, label, sub }); + dcx.emit_err(UnescapeError::NoBraceInUnicodeEscape { span: err_span, label, sub }); } EscapeError::UnicodeEscapeInByte => { - handler.emit_err(UnescapeError::UnicodeEscapeInByte(err_span)); + dcx.emit_err(UnescapeError::UnicodeEscapeInByte(err_span)); } EscapeError::EmptyUnicodeEscape => { - handler.emit_err(UnescapeError::EmptyUnicodeEscape(err_span)); + dcx.emit_err(UnescapeError::EmptyUnicodeEscape(err_span)); } EscapeError::ZeroChars => { - handler.emit_err(UnescapeError::ZeroChars(err_span)); + dcx.emit_err(UnescapeError::ZeroChars(err_span)); } EscapeError::LoneSlash => { - handler.emit_err(UnescapeError::LoneSlash(err_span)); + dcx.emit_err(UnescapeError::LoneSlash(err_span)); } EscapeError::UnskippedWhitespaceWarning => { let (c, char_span) = last_char(); - handler.emit_warning(UnescapeError::UnskippedWhitespace { + dcx.emit_warning(UnescapeError::UnskippedWhitespace { span: err_span, ch: escaped_char(c), char_span, }); } EscapeError::MultipleSkippedLinesWarning => { - handler.emit_warning(UnescapeError::MultipleSkippedLinesWarning(err_span)); + dcx.emit_warning(UnescapeError::MultipleSkippedLinesWarning(err_span)); } } } diff --git a/compiler/rustc_parse/src/lexer/unicode_chars.rs b/compiler/rustc_parse/src/lexer/unicode_chars.rs index 0dc60688955..dac7569e385 100644 --- a/compiler/rustc_parse/src/lexer/unicode_chars.rs +++ b/compiler/rustc_parse/src/lexer/unicode_chars.rs @@ -350,7 +350,7 @@ pub(super) fn check_for_substitution( let Some((_, ascii_name, token)) = ASCII_ARRAY.iter().find(|&&(s, _, _)| s == ascii_str) else { let msg = format!("substitution character not found for '{ch}'"); - reader.sess.span_diagnostic.span_bug(span, msg); + reader.sess.dcx.span_bug(span, msg); }; // special help suggestion for "directed" double quotes diff --git a/compiler/rustc_parse/src/lib.rs b/compiler/rustc_parse/src/lib.rs index 9887a85e6a4..82b0ff70c16 100644 --- a/compiler/rustc_parse/src/lib.rs +++ b/compiler/rustc_parse/src/lib.rs @@ -100,7 +100,7 @@ pub fn parse_stream_from_source_str( /// Creates a new parser from a source string. pub fn new_parser_from_source_str(sess: &ParseSess, name: FileName, source: String) -> Parser<'_> { - panictry_buffer!(&sess.span_diagnostic, maybe_new_parser_from_source_str(sess, name, source)) + panictry_buffer!(&sess.dcx, maybe_new_parser_from_source_str(sess, name, source)) } /// Creates a new parser from a source string. Returns any buffered errors from lexing the initial @@ -121,7 +121,7 @@ pub fn new_parser_from_file<'a>(sess: &'a ParseSess, path: &Path, sp: Option<Spa /// Given a session and a `source_file`, returns a parser. fn source_file_to_parser(sess: &ParseSess, source_file: Lrc<SourceFile>) -> Parser<'_> { - panictry_buffer!(&sess.span_diagnostic, maybe_source_file_to_parser(sess, source_file)) + panictry_buffer!(&sess.dcx, maybe_source_file_to_parser(sess, source_file)) } /// Given a session and a `source_file`, return a parser. Returns any buffered errors from lexing the @@ -166,7 +166,7 @@ fn file_to_source_file(sess: &ParseSess, path: &Path, spanopt: Option<Span>) -> match try_file_to_source_file(sess, path, spanopt) { Ok(source_file) => source_file, Err(d) => { - sess.span_diagnostic.emit_diagnostic(d); + sess.dcx.emit_diagnostic(d); FatalError.raise(); } } @@ -178,7 +178,7 @@ pub fn source_file_to_stream( source_file: Lrc<SourceFile>, override_span: Option<Span>, ) -> TokenStream { - panictry_buffer!(&sess.span_diagnostic, maybe_file_to_stream(sess, source_file, override_span)) + panictry_buffer!(&sess.dcx, maybe_file_to_stream(sess, source_file, override_span)) } /// Given a source file, produces a sequence of token trees. Returns any buffered errors from @@ -189,7 +189,7 @@ pub fn maybe_file_to_stream( override_span: Option<Span>, ) -> Result<TokenStream, Vec<Diagnostic>> { let src = source_file.src.as_ref().unwrap_or_else(|| { - sess.span_diagnostic.bug(format!( + sess.dcx.bug(format!( "cannot lex `source_file` without source: {}", sess.source_map().filename_for_diagnostics(&source_file.name) )); diff --git a/compiler/rustc_parse/src/parser/attr.rs b/compiler/rustc_parse/src/parser/attr.rs index c9ce896b868..53b29eccc2c 100644 --- a/compiler/rustc_parse/src/parser/attr.rs +++ b/compiler/rustc_parse/src/parser/attr.rs @@ -5,7 +5,7 @@ use super::{AttrWrapper, Capturing, FnParseMode, ForceCollect, Parser, PathStyle use rustc_ast as ast; use rustc_ast::attr; use rustc_ast::token::{self, Delimiter, Nonterminal}; -use rustc_errors::{error_code, Diagnostic, IntoDiagnostic, PResult}; +use rustc_errors::{error_code, Diagnostic, PResult}; use rustc_span::{sym, BytePos, Span}; use thin_vec::ThinVec; use tracing::debug; @@ -55,7 +55,7 @@ impl<'a> Parser<'a> { } else if let token::DocComment(comment_kind, attr_style, data) = self.token.kind { if attr_style != ast::AttrStyle::Outer { let span = self.token.span; - let mut err = self.diagnostic().struct_span_err_with_code( + let mut err = self.dcx().struct_span_err_with_code( span, fluent::parse_inner_doc_comment_not_permitted, error_code!(E0753), @@ -416,8 +416,9 @@ impl<'a> Parser<'a> { Err(err) => err.cancel(), } - Err(InvalidMetaItem { span: self.token.span, token: self.token.clone() } - .into_diagnostic(self.diagnostic())) + Err(self + .dcx() + .create_err(InvalidMetaItem { span: self.token.span, token: self.token.clone() })) } } diff --git a/compiler/rustc_parse/src/parser/attr_wrapper.rs b/compiler/rustc_parse/src/parser/attr_wrapper.rs index 5e8447030f1..2307f4cfffa 100644 --- a/compiler/rustc_parse/src/parser/attr_wrapper.rs +++ b/compiler/rustc_parse/src/parser/attr_wrapper.rs @@ -41,7 +41,7 @@ impl AttrWrapper { } pub(crate) fn take_for_recovery(self, sess: &ParseSess) -> AttrVec { - sess.span_diagnostic.span_delayed_bug( + sess.dcx.span_delayed_bug( self.attrs.get(0).map(|attr| attr.span).unwrap_or(DUMMY_SP), "AttrVec is taken for recovery but no error is produced", ); @@ -266,8 +266,7 @@ impl<'a> Parser<'a> { if let Some(attr_range) = self.capture_state.inner_attr_ranges.remove(&inner_attr.id) { inner_attr_replace_ranges.push(attr_range); } else { - self.diagnostic() - .span_delayed_bug(inner_attr.span, "Missing token range for attribute"); + self.dcx().span_delayed_bug(inner_attr.span, "Missing token range for attribute"); } } diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs index 221fc70d9ff..4d557e495d8 100644 --- a/compiler/rustc_parse/src/parser/diagnostics.rs +++ b/compiler/rustc_parse/src/parser/diagnostics.rs @@ -10,13 +10,13 @@ use crate::errors::{ ConstGenericWithoutBracesSugg, DocCommentDoesNotDocumentAnything, DocCommentOnParamType, DoubleColonInBound, ExpectedIdentifier, ExpectedSemi, ExpectedSemiSugg, GenericParamsWithoutAngleBrackets, GenericParamsWithoutAngleBracketsSugg, - HelpIdentifierStartsWithNumber, InInTypo, IncorrectAwait, IncorrectSemicolon, - IncorrectUseOfAwait, PatternMethodParamWithoutBody, QuestionMarkInType, QuestionMarkInTypeSugg, - SelfParamNotFirst, StructLiteralBodyWithoutPath, StructLiteralBodyWithoutPathSugg, - StructLiteralNeedingParens, StructLiteralNeedingParensSugg, SuggAddMissingLetStmt, - SuggEscapeIdentifier, SuggRemoveComma, TernaryOperator, UnexpectedConstInGenericParam, - UnexpectedConstParamDeclaration, UnexpectedConstParamDeclarationSugg, UnmatchedAngleBrackets, - UseEqInstead, WrapType, + HelpIdentifierStartsWithNumber, HelpUseLatestEdition, InInTypo, IncorrectAwait, + IncorrectSemicolon, IncorrectUseOfAwait, PatternMethodParamWithoutBody, QuestionMarkInType, + QuestionMarkInTypeSugg, SelfParamNotFirst, StructLiteralBodyWithoutPath, + StructLiteralBodyWithoutPathSugg, StructLiteralNeedingParens, StructLiteralNeedingParensSugg, + SuggAddMissingLetStmt, SuggEscapeIdentifier, SuggRemoveComma, TernaryOperator, + UnexpectedConstInGenericParam, UnexpectedConstParamDeclaration, + UnexpectedConstParamDeclarationSugg, UnmatchedAngleBrackets, UseEqInstead, WrapType, }; use crate::fluent_generated as fluent; use crate::parser; @@ -34,8 +34,8 @@ use rustc_ast::{ use rustc_ast_pretty::pprust; use rustc_data_structures::fx::FxHashSet; use rustc_errors::{ - pluralize, AddToDiagnostic, Applicability, Diagnostic, DiagnosticBuilder, DiagnosticMessage, - ErrorGuaranteed, FatalError, Handler, IntoDiagnostic, MultiSpan, PResult, + pluralize, AddToDiagnostic, Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder, + DiagnosticMessage, FatalError, MultiSpan, PResult, }; use rustc_session::errors::ExprParenthesesNeeded; use rustc_span::source_map::Spanned; @@ -245,16 +245,16 @@ impl<'a> Parser<'a> { &self, sp: S, m: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { - self.diagnostic().struct_span_err(sp, m) + ) -> DiagnosticBuilder<'a> { + self.dcx().struct_span_err(sp, m) } pub fn span_bug<S: Into<MultiSpan>>(&self, sp: S, msg: impl Into<DiagnosticMessage>) -> ! { - self.diagnostic().span_bug(sp, msg) + self.dcx().span_bug(sp, msg) } - pub(super) fn diagnostic(&self) -> &'a Handler { - &self.sess.span_diagnostic + pub(super) fn dcx(&self) -> &'a DiagCtxt { + &self.sess.dcx } /// Replace `self` with `snapshot.parser`. @@ -280,11 +280,10 @@ impl<'a> Parser<'a> { recover: bool, ) -> PResult<'a, (Ident, /* is_raw */ bool)> { if let TokenKind::DocComment(..) = self.prev_token.kind { - return Err(DocCommentDoesNotDocumentAnything { + return Err(self.dcx().create_err(DocCommentDoesNotDocumentAnything { span: self.prev_token.span, missing_comma: None, - } - .into_diagnostic(self.diagnostic())); + })); } let valid_follow = &[ @@ -347,7 +346,7 @@ impl<'a> Parser<'a> { suggest_remove_comma, help_cannot_start_number, }; - let mut err = err.into_diagnostic(self.diagnostic()); + let mut err = self.dcx().create_err(err); // if the token we have is a `<` // it *might* be a misplaced generic @@ -414,7 +413,7 @@ impl<'a> Parser<'a> { } } - pub(super) fn expected_ident_found_err(&mut self) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + pub(super) fn expected_ident_found_err(&mut self) -> DiagnosticBuilder<'a> { self.expected_ident_found(false).unwrap_err() } @@ -640,6 +639,28 @@ impl<'a> Parser<'a> { } } + // Try to detect an intended c-string literal while using a pre-2021 edition. The heuristic + // here is to identify a cooked, uninterpolated `c` id immediately followed by a string, or + // a cooked, uninterpolated `cr` id immediately followed by a string or a `#`, in an edition + // where c-string literals are not allowed. There is the very slight possibility of a false + // positive for a `cr#` that wasn't intended to start a c-string literal, but identifying + // that in the parser requires unbounded lookahead, so we only add a hint to the existing + // error rather than replacing it entirely. + if ((self.prev_token.kind == TokenKind::Ident(sym::c, false) + && matches!(&self.token.kind, TokenKind::Literal(token::Lit { kind: token::Str, .. }))) + || (self.prev_token.kind == TokenKind::Ident(sym::cr, false) + && matches!( + &self.token.kind, + TokenKind::Literal(token::Lit { kind: token::Str, .. }) | token::Pound + ))) + && self.prev_token.span.hi() == self.token.span.lo() + && !self.token.span.at_least_rust_2021() + { + err.note("you may be trying to write a c-string literal"); + err.note("c-string literals require Rust 2021 or later"); + HelpUseLatestEdition::new().add_to_diagnostic(&mut err); + } + // `pub` may be used for an item or `pub(crate)` if self.prev_token.is_ident_named(sym::public) && (self.token.can_begin_item() @@ -937,7 +958,7 @@ impl<'a> Parser<'a> { pub(super) fn recover_closure_body( &mut self, - mut err: DiagnosticBuilder<'a, ErrorGuaranteed>, + mut err: DiagnosticBuilder<'a>, before: token::Token, prev: token::Token, token: token::Token, @@ -1168,7 +1189,7 @@ impl<'a> Parser<'a> { /// encounter a parse error when encountering the first `,`. pub(super) fn check_mistyped_turbofish_with_multiple_type_params( &mut self, - mut e: DiagnosticBuilder<'a, ErrorGuaranteed>, + mut e: DiagnosticBuilder<'a>, expr: &mut P<Expr>, ) -> PResult<'a, ()> { if let ExprKind::Binary(binop, _, _) = &expr.kind @@ -1213,10 +1234,7 @@ impl<'a> Parser<'a> { /// Suggest add the missing `let` before the identifier in stmt /// `a: Ty = 1` -> `let a: Ty = 1` - pub(super) fn suggest_add_missing_let_for_stmt( - &mut self, - err: &mut DiagnosticBuilder<'a, ErrorGuaranteed>, - ) { + pub(super) fn suggest_add_missing_let_for_stmt(&mut self, err: &mut DiagnosticBuilder<'a>) { if self.token == token::Colon { let prev_span = self.prev_token.span.shrink_to_lo(); let snapshot = self.create_snapshot_for_diagnostic(); @@ -1410,7 +1428,7 @@ impl<'a> Parser<'a> { // Not entirely sure now, but we bubble the error up with the // suggestion. self.restore_snapshot(snapshot); - Err(err.into_diagnostic(self.diagnostic())) + Err(self.dcx().create_err(err)) } } } else if token::OpenDelim(Delimiter::Parenthesis) == self.token.kind { @@ -1425,7 +1443,7 @@ impl<'a> Parser<'a> { } // Consume the fn call arguments. match self.consume_fn_args() { - Err(()) => Err(err.into_diagnostic(self.diagnostic())), + Err(()) => Err(self.dcx().create_err(err)), Ok(()) => { self.sess.emit_err(err); // FIXME: actually check that the two expressions in the binop are @@ -1451,7 +1469,7 @@ impl<'a> Parser<'a> { mk_err_expr(self, inner_op.span.to(self.prev_token.span)) } else { // These cases cause too many knock-down errors, bail out (#61329). - Err(err.into_diagnostic(self.diagnostic())) + Err(self.dcx().create_err(err)) } }; } @@ -2299,7 +2317,7 @@ impl<'a> Parser<'a> { } } - pub(super) fn expected_expression_found(&self) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + pub(super) fn expected_expression_found(&self) -> DiagnosticBuilder<'a> { let (span, msg) = match (&self.token.kind, self.subparser_name) { (&token::Eof, Some(origin)) => { let sp = self.prev_token.span.shrink_to_hi(); @@ -2539,7 +2557,7 @@ impl<'a> Parser<'a> { Ok(Some(GenericArg::Const(self.parse_const_arg()?))) } else { let after_kw_const = self.token.span; - self.recover_const_arg(after_kw_const, err.into_diagnostic(self.diagnostic())).map(Some) + self.recover_const_arg(after_kw_const, self.dcx().create_err(err)).map(Some) } } @@ -2551,7 +2569,7 @@ impl<'a> Parser<'a> { pub fn recover_const_arg( &mut self, start: Span, - mut err: DiagnosticBuilder<'a, ErrorGuaranteed>, + mut err: DiagnosticBuilder<'a>, ) -> PResult<'a, GenericArg> { let is_op_or_dot = AssocOp::from_token(&self.token) .and_then(|op| { @@ -2653,7 +2671,7 @@ impl<'a> Parser<'a> { /// Creates a dummy const argument, and reports that the expression must be enclosed in braces pub fn dummy_const_arg_needs_braces( &self, - mut err: DiagnosticBuilder<'a, ErrorGuaranteed>, + mut err: DiagnosticBuilder<'a>, span: Span, ) -> GenericArg { err.multipart_suggestion( @@ -2893,11 +2911,10 @@ impl<'a> Parser<'a> { let (a_span, b_span) = (a.span(), b.span()); let between_span = a_span.shrink_to_hi().to(b_span.shrink_to_lo()); if self.span_to_snippet(between_span).as_deref() == Ok(":: ") { - return Err(DoubleColonInBound { + return Err(self.dcx().create_err(DoubleColonInBound { span: path.span.shrink_to_hi(), between: between_span, - } - .into_diagnostic(self.diagnostic())); + })); } } } diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index 509cef9826b..a6783eaf8d4 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -10,7 +10,7 @@ use super::{ use crate::errors; use crate::maybe_recover_from_interpolated_ty_qpath; use ast::mut_visit::{noop_visit_expr, MutVisitor}; -use ast::{CoroutineKind, GenBlockKind, Pat, Path, PathSegment}; +use ast::{CoroutineKind, ForLoopKind, GenBlockKind, Pat, Path, PathSegment}; use core::mem; use rustc_ast::ptr::P; use rustc_ast::token::{self, Delimiter, Token, TokenKind}; @@ -26,8 +26,7 @@ use rustc_ast::{ClosureBinder, MetaItemLit, StmtKind}; use rustc_ast_pretty::pprust; use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_errors::{ - AddToDiagnostic, Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, IntoDiagnostic, - PResult, StashKey, + AddToDiagnostic, Applicability, Diagnostic, DiagnosticBuilder, PResult, StashKey, }; use rustc_macros::Subdiagnostic; use rustc_session::errors::{report_lit_error, ExprParenthesesNeeded}; @@ -1255,21 +1254,21 @@ impl<'a> Parser<'a> { // that of the open delim in `TokenTreesReader::parse_token_tree`, even if they are different. self.span_to_snippet(close_paren).is_ok_and(|snippet| snippet == ")") { - let mut replacement_err = errors::ParenthesesWithStructFields { - span, - r#type: path, - braces_for_struct: errors::BracesForStructLiteral { - first: open_paren, - second: close_paren, - }, - no_fields_for_fn: errors::NoFieldsForFnCall { - fields: fields - .into_iter() - .map(|field| field.span.until(field.expr.span)) - .collect(), - }, - } - .into_diagnostic(self.diagnostic()); + let mut replacement_err = + self.dcx().create_err(errors::ParenthesesWithStructFields { + span, + r#type: path, + braces_for_struct: errors::BracesForStructLiteral { + first: open_paren, + second: close_paren, + }, + no_fields_for_fn: errors::NoFieldsForFnCall { + fields: fields + .into_iter() + .map(|field| field.span.until(field.expr.span)) + .collect(), + }, + }); replacement_err.emit(); let old_err = mem::replace(err, replacement_err); @@ -1691,10 +1690,9 @@ impl<'a> Parser<'a> { &self, lifetime: Ident, mk_lit_char: impl FnOnce(Symbol, Span) -> L, - err: impl FnOnce(&Self) -> DiagnosticBuilder<'a, ErrorGuaranteed>, + err: impl FnOnce(&Self) -> DiagnosticBuilder<'a>, ) -> L { - if let Some(mut diag) = - self.diagnostic().steal_diagnostic(lifetime.span, StashKey::LifetimeIsChar) + if let Some(mut diag) = self.dcx().steal_diagnostic(lifetime.span, StashKey::LifetimeIsChar) { diag.span_suggestion_verbose( lifetime.span.shrink_to_hi(), @@ -1802,7 +1800,7 @@ impl<'a> Parser<'a> { && matches!( expr.kind, ExprKind::While(_, _, None) - | ExprKind::ForLoop(_, _, _, None) + | ExprKind::ForLoop { label: None, .. } | ExprKind::Loop(_, None, _) | ExprKind::Block(_, None) ) @@ -1884,8 +1882,7 @@ impl<'a> Parser<'a> { self.bump(); // `#` let Some((ident, false)) = self.token.ident() else { - let err = errors::ExpectedBuiltinIdent { span: self.token.span } - .into_diagnostic(self.diagnostic()); + let err = self.dcx().create_err(errors::ExpectedBuiltinIdent { span: self.token.span }); return Err(err); }; self.sess.gated_spans.gate(sym::builtin_syntax, ident.span); @@ -1895,8 +1892,10 @@ impl<'a> Parser<'a> { let ret = if let Some(res) = parse(self, lo, ident)? { Ok(res) } else { - let err = errors::UnknownBuiltinConstruct { span: lo.to(ident.span), name: ident.name } - .into_diagnostic(self.diagnostic()); + let err = self.dcx().create_err(errors::UnknownBuiltinConstruct { + span: lo.to(ident.span), + name: ident.name, + }); return Err(err); }; self.expect(&TokenKind::CloseDelim(Delimiter::Parenthesis))?; @@ -1959,8 +1958,9 @@ impl<'a> Parser<'a> { && let token::NtExpr(e) | token::NtLiteral(e) = &nt.0 && matches!(e.kind, ExprKind::Err) { - let mut err = errors::InvalidInterpolatedExpression { span: self.token.span } - .into_diagnostic(self.diagnostic()); + let mut err = self + .dcx() + .create_err(errors::InvalidInterpolatedExpression { span: self.token.span }); err.downgrade_to_delayed_bug(); return Err(err); } @@ -2169,10 +2169,10 @@ impl<'a> Parser<'a> { .span_to_snippet(snapshot.token.span) .is_ok_and(|snippet| snippet == "]") => { - return Err(errors::MissingSemicolonBeforeArray { + return Err(self.dcx().create_err(errors::MissingSemicolonBeforeArray { open_delim: open_delim_span, semicolon: prev_span.shrink_to_hi(), - }.into_diagnostic(self.diagnostic())); + })); } Ok(_) => (), Err(err) => err.cancel(), @@ -2319,8 +2319,9 @@ impl<'a> Parser<'a> { // Check for `move async` and recover if self.check_keyword(kw::Async) { let move_async_span = self.token.span.with_lo(self.prev_token.span.data().lo); - Err(errors::AsyncMoveOrderIncorrect { span: move_async_span } - .into_diagnostic(self.diagnostic())) + Err(self + .dcx() + .create_err(errors::AsyncMoveOrderIncorrect { span: move_async_span })) } else { Ok(CaptureBy::Value { move_kw: move_kw_span }) } @@ -2510,7 +2511,7 @@ impl<'a> Parser<'a> { }; if self.prev_token.kind == token::BinOp(token::Or) { // This was part of a closure, the that part of the parser recover. - return Err(err.into_diagnostic(self.diagnostic())); + return Err(self.dcx().create_err(err)); } else { Some(self.sess.emit_err(err)) } @@ -2683,8 +2684,17 @@ impl<'a> Parser<'a> { Ok((pat, expr)) } - /// Parses `for <src_pat> in <src_expr> <src_loop_block>` (`for` token already eaten). + /// Parses `for await? <src_pat> in <src_expr> <src_loop_block>` (`for` token already eaten). fn parse_expr_for(&mut self, opt_label: Option<Label>, lo: Span) -> PResult<'a, P<Expr>> { + let is_await = + self.token.uninterpolated_span().at_least_rust_2018() && self.eat_keyword(kw::Await); + + if is_await { + self.sess.gated_spans.gate(sym::async_for_loop, self.prev_token.span); + } + + let kind = if is_await { ForLoopKind::ForAwait } else { ForLoopKind::For }; + let (pat, expr) = self.parse_for_head()?; // Recover from missing expression in `for` loop if matches!(expr.kind, ExprKind::Block(..)) @@ -2697,13 +2707,13 @@ impl<'a> Parser<'a> { let block = self.mk_block(thin_vec![], BlockCheckMode::Default, self.prev_token.span); return Ok(self.mk_expr( lo.to(self.prev_token.span), - ExprKind::ForLoop(pat, err_expr, block, opt_label), + ExprKind::ForLoop { pat, iter: err_expr, body: block, label: opt_label, kind }, )); } let (attrs, loop_block) = self.parse_inner_attrs_and_block()?; - let kind = ExprKind::ForLoop(pat, expr, loop_block, opt_label); + let kind = ExprKind::ForLoop { pat, iter: expr, body: loop_block, label: opt_label, kind }; self.recover_loop_else("for", lo)?; @@ -3194,8 +3204,7 @@ impl<'a> Parser<'a> { fn parse_try_block(&mut self, span_lo: Span) -> PResult<'a, P<Expr>> { let (attrs, body) = self.parse_inner_attrs_and_block()?; if self.eat_keyword(kw::Catch) { - Err(errors::CatchAfterTry { span: self.prev_token.span } - .into_diagnostic(self.diagnostic())) + Err(self.dcx().create_err(errors::CatchAfterTry { span: self.prev_token.span })) } else { let span = span_lo.to(body.span); self.sess.gated_spans.gate(sym::try_blocks, span); @@ -3532,12 +3541,11 @@ impl<'a> Parser<'a> { || t == &token::CloseDelim(Delimiter::Parenthesis) }); if is_wrong { - return Err(errors::ExpectedStructField { + return Err(this.dcx().create_err(errors::ExpectedStructField { span: this.look_ahead(1, |t| t.span), ident_span: this.token.span, token: this.look_ahead(1, |t| t.clone()), - } - .into_diagnostic(&self.sess.span_diagnostic)); + })); } let (ident, expr) = if is_shorthand { // Mimic `x: x` for the `x` field shorthand. @@ -3800,7 +3808,7 @@ impl MutVisitor for CondChecker<'_> { | ExprKind::Lit(_) | ExprKind::If(_, _, _) | ExprKind::While(_, _, _) - | ExprKind::ForLoop(_, _, _, _) + | ExprKind::ForLoop { .. } | ExprKind::Loop(_, _, _) | ExprKind::Match(_, _) | ExprKind::Closure(_) diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index fd7dad36c9d..051f19f5a9d 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -10,10 +10,7 @@ use rustc_ast::tokenstream::{DelimSpan, TokenStream, TokenTree}; use rustc_ast::util::case::Case; use rustc_ast::{self as ast}; use rustc_ast_pretty::pprust; -use rustc_errors::{ - struct_span_err, Applicability, DiagnosticBuilder, ErrorGuaranteed, IntoDiagnostic, PResult, - StashKey, -}; +use rustc_errors::{struct_span_err, Applicability, PResult, StashKey}; use rustc_span::edit_distance::edit_distance; use rustc_span::edition::Edition; use rustc_span::source_map; @@ -438,7 +435,7 @@ impl<'a> Parser<'a> { None }; - if let Some(err) = err { Err(err.into_diagnostic(self.diagnostic())) } else { Ok(()) } + if let Some(err) = err { Err(self.dcx().create_err(err)) } else { Ok(()) } } fn parse_item_builtin(&mut self) -> PResult<'a, Option<ItemInfo>> { @@ -759,7 +756,7 @@ impl<'a> Parser<'a> { if self.look_ahead(1, |tok| tok == &token::CloseDelim(Delimiter::Brace)) { // FIXME: merge with `DocCommentDoesNotDocumentAnything` (E0585) struct_span_err!( - self.diagnostic(), + self.dcx(), self.token.span, E0584, "found a documentation comment that doesn't document anything", @@ -1373,8 +1370,7 @@ impl<'a> Parser<'a> { }; let span = self.prev_token.span.shrink_to_hi(); - let err: DiagnosticBuilder<'_, ErrorGuaranteed> = - errors::MissingConstType { span, colon, kind }.into_diagnostic(self.diagnostic()); + let err = self.dcx().create_err(errors::MissingConstType { span, colon, kind }); err.stash(span, StashKey::ItemNoType); // The user intended that the type be inferred, @@ -1391,7 +1387,7 @@ impl<'a> Parser<'a> { self.bump(); self.sess.emit_err(err); } else { - return Err(err.into_diagnostic(self.diagnostic())); + return Err(self.dcx().create_err(err)); } } @@ -1484,7 +1480,7 @@ impl<'a> Parser<'a> { (thin_vec![], true) } }; - VariantData::Struct(fields, recovered) + VariantData::Struct { fields, recovered } } else if this.check(&token::OpenDelim(Delimiter::Parenthesis)) { let body = match this.parse_tuple_struct_body() { Ok(body) => body, @@ -1569,7 +1565,7 @@ impl<'a> Parser<'a> { class_name.span, generics.where_clause.has_where_token, )?; - VariantData::Struct(fields, recovered) + VariantData::Struct { fields, recovered } } // No `where` so: `struct Foo<T>;` } else if self.eat(&token::Semi) { @@ -1581,7 +1577,7 @@ impl<'a> Parser<'a> { class_name.span, generics.where_clause.has_where_token, )?; - VariantData::Struct(fields, recovered) + VariantData::Struct { fields, recovered } // Tuple-style struct definition with optional where-clause. } else if self.token == token::OpenDelim(Delimiter::Parenthesis) { let body = VariantData::Tuple(self.parse_tuple_struct_body()?, DUMMY_NODE_ID); @@ -1591,7 +1587,7 @@ impl<'a> Parser<'a> { } else { let err = errors::UnexpectedTokenAfterStructName::new(self.token.span, self.token.clone()); - return Err(err.into_diagnostic(self.diagnostic())); + return Err(self.dcx().create_err(err)); }; Ok((class_name, ItemKind::Struct(vdata, generics))) @@ -1610,14 +1606,14 @@ impl<'a> Parser<'a> { class_name.span, generics.where_clause.has_where_token, )?; - VariantData::Struct(fields, recovered) + VariantData::Struct { fields, recovered } } else if self.token == token::OpenDelim(Delimiter::Brace) { let (fields, recovered) = self.parse_record_struct_body( "union", class_name.span, generics.where_clause.has_where_token, )?; - VariantData::Struct(fields, recovered) + VariantData::Struct { fields, recovered } } else { let token_str = super::token_descr(&self.token); let msg = format!("expected `where` or `{{` after union name, found {token_str}"); @@ -1787,7 +1783,7 @@ impl<'a> Parser<'a> { let sp = previous_span.shrink_to_hi(); err.missing_comma = Some(sp); } - return Err(err.into_diagnostic(self.diagnostic())); + return Err(self.dcx().create_err(err)); } } _ => { @@ -1837,7 +1833,7 @@ impl<'a> Parser<'a> { // Make sure an error was emitted (either by recovering an angle bracket, // or by finding an identifier as the next token), since we're // going to continue parsing - assert!(self.diagnostic().has_errors().is_some()); + assert!(self.dcx().has_errors().is_some()); } else { return Err(err); } diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index 2baedb2766f..47c337ad913 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -32,9 +32,7 @@ use rustc_ast::{HasAttrs, HasTokens, Unsafe, Visibility, VisibilityKind}; use rustc_ast_pretty::pprust; use rustc_data_structures::fx::FxHashMap; use rustc_errors::PResult; -use rustc_errors::{ - Applicability, DiagnosticBuilder, ErrorGuaranteed, FatalError, IntoDiagnostic, MultiSpan, -}; +use rustc_errors::{Applicability, DiagnosticBuilder, FatalError, MultiSpan}; use rustc_session::parse::ParseSess; use rustc_span::symbol::{kw, sym, Ident, Symbol}; use rustc_span::{Span, DUMMY_SP}; @@ -910,7 +908,7 @@ impl<'a> Parser<'a> { fn recover_missing_braces_around_closure_body( &mut self, closure_spans: ClosureSpans, - mut expect_err: DiagnosticBuilder<'_, ErrorGuaranteed>, + mut expect_err: DiagnosticBuilder<'_>, ) -> PResult<'a, ()> { let initial_semicolon = self.token.span; @@ -1492,7 +1490,7 @@ impl<'a> Parser<'a> { pub(crate) fn make_unclosed_delims_error( unmatched: UnmatchedDelim, sess: &ParseSess, -) -> Option<DiagnosticBuilder<'_, ErrorGuaranteed>> { +) -> Option<DiagnosticBuilder<'_>> { // `None` here means an `Eof` was found. We already emit those errors elsewhere, we add them to // `unmatched_delims` only for error recovery in the `Parser`. let found_delim = unmatched.found_delim?; @@ -1500,14 +1498,13 @@ pub(crate) fn make_unclosed_delims_error( if let Some(sp) = unmatched.unclosed_span { spans.push(sp); }; - let err = MismatchedClosingDelimiter { + let err = sess.dcx.create_err(MismatchedClosingDelimiter { spans, delimiter: pprust::token_kind_to_string(&token::CloseDelim(found_delim)).to_string(), unmatched: unmatched.found_span, opening_candidate: unmatched.candidate_span, unclosed: unmatched.unclosed_span, - } - .into_diagnostic(&sess.span_diagnostic); + }); Some(err) } diff --git a/compiler/rustc_parse/src/parser/nonterminal.rs b/compiler/rustc_parse/src/parser/nonterminal.rs index 4360a69e501..071d6b72f3b 100644 --- a/compiler/rustc_parse/src/parser/nonterminal.rs +++ b/compiler/rustc_parse/src/parser/nonterminal.rs @@ -2,7 +2,6 @@ use rustc_ast::ptr::P; use rustc_ast::token::{self, Delimiter, Nonterminal::*, NonterminalKind, Token}; use rustc_ast::HasTokens; use rustc_ast_pretty::pprust; -use rustc_errors::IntoDiagnostic; use rustc_errors::PResult; use rustc_span::symbol::{kw, Ident}; @@ -114,8 +113,9 @@ impl<'a> Parser<'a> { NonterminalKind::Item => match self.parse_item(ForceCollect::Yes)? { Some(item) => NtItem(item), None => { - return Err(UnexpectedNonterminal::Item(self.token.span) - .into_diagnostic(self.diagnostic())); + return Err(self + .dcx() + .create_err(UnexpectedNonterminal::Item(self.token.span))); } }, NonterminalKind::Block => { @@ -126,8 +126,9 @@ impl<'a> Parser<'a> { NonterminalKind::Stmt => match self.parse_stmt(ForceCollect::Yes)? { Some(s) => NtStmt(P(s)), None => { - return Err(UnexpectedNonterminal::Statement(self.token.span) - .into_diagnostic(self.diagnostic())); + return Err(self + .dcx() + .create_err(UnexpectedNonterminal::Statement(self.token.span))); } }, NonterminalKind::PatParam { .. } | NonterminalKind::PatWithOr => { @@ -159,11 +160,10 @@ impl<'a> Parser<'a> { NtIdent(ident, is_raw) } NonterminalKind::Ident => { - return Err(UnexpectedNonterminal::Ident { + return Err(self.dcx().create_err(UnexpectedNonterminal::Ident { span: self.token.span, token: self.token.clone(), - } - .into_diagnostic(self.diagnostic())); + })); } NonterminalKind::Path => { NtPath(P(self.collect_tokens_no_attrs(|this| this.parse_path(PathStyle::Type))?)) @@ -177,11 +177,10 @@ impl<'a> Parser<'a> { if self.check_lifetime() { NtLifetime(self.expect_lifetime().ident) } else { - return Err(UnexpectedNonterminal::Lifetime { + return Err(self.dcx().create_err(UnexpectedNonterminal::Lifetime { span: self.token.span, token: self.token.clone(), - } - .into_diagnostic(self.diagnostic())); + })); } } }; diff --git a/compiler/rustc_parse/src/parser/pat.rs b/compiler/rustc_parse/src/parser/pat.rs index 020b66a985a..11c4b8fae7c 100644 --- a/compiler/rustc_parse/src/parser/pat.rs +++ b/compiler/rustc_parse/src/parser/pat.rs @@ -15,10 +15,10 @@ use rustc_ast::ptr::P; use rustc_ast::token::{self, Delimiter}; use rustc_ast::{ self as ast, AttrVec, BindingAnnotation, ByRef, Expr, ExprKind, MacCall, Mutability, Pat, - PatField, PatKind, Path, QSelf, RangeEnd, RangeSyntax, + PatField, PatFieldsRest, PatKind, Path, QSelf, RangeEnd, RangeSyntax, }; use rustc_ast_pretty::pprust; -use rustc_errors::{Applicability, DiagnosticBuilder, ErrorGuaranteed, IntoDiagnostic, PResult}; +use rustc_errors::{Applicability, DiagnosticBuilder, PResult}; use rustc_session::errors::ExprParenthesesNeeded; use rustc_span::source_map::{respan, Spanned}; use rustc_span::symbol::{kw, sym, Ident}; @@ -687,7 +687,7 @@ impl<'a> Parser<'a> { fn fatal_unexpected_non_pat( &mut self, - err: DiagnosticBuilder<'a, ErrorGuaranteed>, + err: DiagnosticBuilder<'a>, expected: Option<Expected>, ) -> PResult<'a, P<Pat>> { err.cancel(); @@ -872,8 +872,9 @@ impl<'a> Parser<'a> { // binding mode then we do not end up here, because the lookahead // will direct us over to `parse_enum_variant()`. if self.token == token::OpenDelim(Delimiter::Parenthesis) { - return Err(EnumPatternInsteadOfIdentifier { span: self.prev_token.span } - .into_diagnostic(self.diagnostic())); + return Err(self + .dcx() + .create_err(EnumPatternInsteadOfIdentifier { span: self.prev_token.span })); } Ok(PatKind::Ident(binding_annotation, ident, sub)) @@ -890,7 +891,8 @@ impl<'a> Parser<'a> { e.span_label(path.span, "while parsing the fields for this pattern"); e.emit(); self.recover_stmt(); - (ThinVec::new(), true) + // When recovering, pretend we had `Foo { .. }`, to avoid cascading errors. + (ThinVec::new(), PatFieldsRest::Rest) }); self.bump(); Ok(PatKind::Struct(qself, path, fields, etc)) @@ -964,11 +966,11 @@ impl<'a> Parser<'a> { } /// Parses the fields of a struct-like pattern. - fn parse_pat_fields(&mut self) -> PResult<'a, (ThinVec<PatField>, bool)> { + fn parse_pat_fields(&mut self) -> PResult<'a, (ThinVec<PatField>, PatFieldsRest)> { let mut fields = ThinVec::new(); - let mut etc = false; + let mut etc = PatFieldsRest::None; let mut ate_comma = true; - let mut delayed_err: Option<DiagnosticBuilder<'a, ErrorGuaranteed>> = None; + let mut delayed_err: Option<DiagnosticBuilder<'a>> = None; let mut first_etc_and_maybe_comma_span = None; let mut last_non_comma_dotdot_span = None; @@ -986,8 +988,8 @@ impl<'a> Parser<'a> { // check that a comma comes after every field if !ate_comma { - let mut err = ExpectedCommaAfterPatternField { span: self.token.span } - .into_diagnostic(self.diagnostic()); + let mut err = + self.dcx().create_err(ExpectedCommaAfterPatternField { span: self.token.span }); if let Some(mut delayed) = delayed_err { delayed.emit(); } @@ -1000,7 +1002,7 @@ impl<'a> Parser<'a> { || self.check_noexpect(&token::DotDotDot) || self.check_keyword(kw::Underscore) { - etc = true; + etc = PatFieldsRest::Rest; let mut etc_sp = self.token.span; if first_etc_and_maybe_comma_span.is_none() { if let Some(comma_tok) = self @@ -1134,7 +1136,7 @@ impl<'a> Parser<'a> { fn recover_misplaced_pattern_modifiers( &self, fields: &ThinVec<PatField>, - err: &mut DiagnosticBuilder<'a, ErrorGuaranteed>, + err: &mut DiagnosticBuilder<'a>, ) { if let Some(last) = fields.iter().last() && last.is_shorthand diff --git a/compiler/rustc_parse/src/parser/path.rs b/compiler/rustc_parse/src/parser/path.rs index 0f4ba9617c6..405531c1e41 100644 --- a/compiler/rustc_parse/src/parser/path.rs +++ b/compiler/rustc_parse/src/parser/path.rs @@ -9,7 +9,7 @@ use rustc_ast::{ AssocConstraintKind, BlockCheckMode, GenericArg, GenericArgs, Generics, ParenthesizedArgs, Path, PathSegment, QSelf, }; -use rustc_errors::{Applicability, IntoDiagnostic, PResult}; +use rustc_errors::{Applicability, PResult}; use rustc_span::symbol::{kw, sym, Ident}; use rustc_span::{BytePos, Span}; use std::mem; @@ -123,7 +123,7 @@ impl<'a> Parser<'a> { self.bump(); // colon - self.diagnostic() + self.dcx() .struct_span_err( self.prev_token.span, "found single colon before projection in qualified path", @@ -318,15 +318,14 @@ impl<'a> Parser<'a> { }) { err.cancel(); - err = PathSingleColon { + err = self.dcx().create_err(PathSingleColon { span: self.token.span, type_ascription: self .sess .unstable_features .is_nightly_build() .then_some(()), - } - .into_diagnostic(self.diagnostic()); + }); } // Attempt to find places where a missing `>` might belong. else if let Some(arg) = args @@ -841,7 +840,7 @@ impl<'a> Parser<'a> { { return Ok((false, seg.ident, seg.args.as_deref().cloned())); } else if let ast::TyKind::TraitObject(bounds, ast::TraitObjectSyntax::None) = &ty.kind - && let [ast::GenericBound::Trait(trait_ref, ast::TraitBoundModifier::None)] = + && let [ast::GenericBound::Trait(trait_ref, ast::TraitBoundModifiers::NONE)] = bounds.as_slice() && let [seg] = trait_ref.trait_ref.path.segments.as_slice() { diff --git a/compiler/rustc_parse/src/parser/stmt.rs b/compiler/rustc_parse/src/parser/stmt.rs index 1ee5a96d5dc..1ac5aba212c 100644 --- a/compiler/rustc_parse/src/parser/stmt.rs +++ b/compiler/rustc_parse/src/parser/stmt.rs @@ -19,7 +19,7 @@ use rustc_ast::util::classify; use rustc_ast::{AttrStyle, AttrVec, LocalKind, MacCall, MacCallStmt, MacStmtStyle}; use rustc_ast::{Block, BlockCheckMode, Expr, ExprKind, HasAttrs, Local, Stmt}; use rustc_ast::{StmtKind, DUMMY_NODE_ID}; -use rustc_errors::{Applicability, DiagnosticBuilder, ErrorGuaranteed, PResult}; +use rustc_errors::{Applicability, DiagnosticBuilder, PResult}; use rustc_span::symbol::{kw, sym, Ident}; use rustc_span::{BytePos, Span}; @@ -442,7 +442,7 @@ impl<'a> Parser<'a> { fn error_block_no_opening_brace_msg( &mut self, msg: Cow<'static, str>, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'a> { let sp = self.token.span; let mut e = self.struct_span_err(sp, msg); let do_not_suggest_help = self.token.is_keyword(kw::In) || self.token == token::Colon; diff --git a/compiler/rustc_parse/src/parser/ty.rs b/compiler/rustc_parse/src/parser/ty.rs index da8cc05ff66..f89d6d1d965 100644 --- a/compiler/rustc_parse/src/parser/ty.rs +++ b/compiler/rustc_parse/src/parser/ty.rs @@ -13,37 +13,15 @@ use rustc_ast::ptr::P; use rustc_ast::token::{self, Delimiter, Token, TokenKind}; use rustc_ast::util::case::Case; use rustc_ast::{ - self as ast, BareFnTy, BoundPolarity, FnRetTy, GenericBound, GenericBounds, GenericParam, - Generics, Lifetime, MacCall, MutTy, Mutability, PolyTraitRef, TraitBoundModifier, - TraitObjectSyntax, Ty, TyKind, + self as ast, BareFnTy, BoundConstness, BoundPolarity, FnRetTy, GenericBound, GenericBounds, + GenericParam, Generics, Lifetime, MacCall, MutTy, Mutability, PolyTraitRef, + TraitBoundModifiers, TraitObjectSyntax, Ty, TyKind, }; use rustc_errors::{Applicability, PResult}; use rustc_span::symbol::{kw, sym, Ident}; use rustc_span::{Span, Symbol}; use thin_vec::{thin_vec, ThinVec}; -/// Any `?`, `!`, or `~const` modifiers that appear at the start of a bound. -struct BoundModifiers { - /// `?Trait`. - bound_polarity: BoundPolarity, - - /// `~const Trait`. - maybe_const: Option<Span>, -} - -impl BoundModifiers { - fn to_trait_bound_modifier(&self) -> TraitBoundModifier { - match (self.bound_polarity, self.maybe_const) { - (BoundPolarity::Positive, None) => TraitBoundModifier::None, - (BoundPolarity::Negative(_), None) => TraitBoundModifier::Negative, - (BoundPolarity::Maybe(_), None) => TraitBoundModifier::Maybe, - (BoundPolarity::Positive, Some(sp)) => TraitBoundModifier::MaybeConst(sp), - (BoundPolarity::Negative(_), Some(_)) => TraitBoundModifier::MaybeConstNegative, - (BoundPolarity::Maybe(_), Some(_)) => TraitBoundModifier::MaybeConstMaybe, - } - } -} - #[derive(Copy, Clone, PartialEq)] pub(super) enum AllowPlus { Yes, @@ -461,7 +439,7 @@ impl<'a> Parser<'a> { parse_plus: bool, ) -> PResult<'a, TyKind> { let poly_trait_ref = PolyTraitRef::new(generic_params, path, lo.to(self.prev_token.span)); - let bounds = vec![GenericBound::Trait(poly_trait_ref, TraitBoundModifier::None)]; + let bounds = vec![GenericBound::Trait(poly_trait_ref, TraitBoundModifiers::NONE)]; self.parse_remaining_bounds(bounds, parse_plus) } @@ -800,7 +778,7 @@ impl<'a> Parser<'a> { let has_parens = self.eat(&token::OpenDelim(Delimiter::Parenthesis)); let inner_lo = self.token.span; - let modifiers = self.parse_ty_bound_modifiers()?; + let modifiers = self.parse_trait_bound_modifiers()?; let bound = if self.token.is_lifetime() { self.error_lt_bound_with_modifiers(modifiers); self.parse_generic_lt_bound(lo, inner_lo, has_parens)? @@ -831,18 +809,21 @@ impl<'a> Parser<'a> { } /// Emits an error if any trait bound modifiers were present. - fn error_lt_bound_with_modifiers(&self, modifiers: BoundModifiers) { - if let Some(span) = modifiers.maybe_const { - self.sess.emit_err(errors::TildeConstLifetime { span }); + fn error_lt_bound_with_modifiers(&self, modifiers: TraitBoundModifiers) { + match modifiers.constness { + BoundConstness::Never => {} + BoundConstness::Maybe(span) => { + self.sess.emit_err(errors::TildeConstLifetime { span }); + } } - match modifiers.bound_polarity { + match modifiers.polarity { BoundPolarity::Positive => {} - BoundPolarity::Negative(span) => { - self.sess.emit_err(errors::ModifierLifetime { span, sigil: "!" }); - } - BoundPolarity::Maybe(span) => { - self.sess.emit_err(errors::ModifierLifetime { span, sigil: "?" }); + BoundPolarity::Negative(span) | BoundPolarity::Maybe(span) => { + self.sess.emit_err(errors::ModifierLifetime { + span, + sigil: modifiers.polarity.as_str(), + }); } } } @@ -867,26 +848,26 @@ impl<'a> Parser<'a> { /// If no modifiers are present, this does not consume any tokens. /// /// ```ebnf - /// TY_BOUND_MODIFIERS = ["~const"] ["?"] + /// TRAIT_BOUND_MODIFIERS = ["~const"] ["?" | "!"] /// ``` - fn parse_ty_bound_modifiers(&mut self) -> PResult<'a, BoundModifiers> { - let maybe_const = if self.eat(&token::Tilde) { + fn parse_trait_bound_modifiers(&mut self) -> PResult<'a, TraitBoundModifiers> { + let constness = if self.eat(&token::Tilde) { let tilde = self.prev_token.span; self.expect_keyword(kw::Const)?; let span = tilde.to(self.prev_token.span); self.sess.gated_spans.gate(sym::const_trait_impl, span); - Some(span) + BoundConstness::Maybe(span) } else if self.eat_keyword(kw::Const) { let span = self.prev_token.span; self.sess.gated_spans.gate(sym::const_trait_impl, span); self.sess.emit_err(errors::ConstMissingTilde { span, start: span.shrink_to_lo() }); - Some(span) + BoundConstness::Maybe(span) } else { - None + BoundConstness::Never }; - let bound_polarity = if self.eat(&token::Question) { + let polarity = if self.eat(&token::Question) { BoundPolarity::Maybe(self.prev_token.span) } else if self.eat(&token::Not) { self.sess.gated_spans.gate(sym::negative_bounds, self.prev_token.span); @@ -895,13 +876,13 @@ impl<'a> Parser<'a> { BoundPolarity::Positive }; - Ok(BoundModifiers { bound_polarity, maybe_const }) + Ok(TraitBoundModifiers { constness, polarity }) } /// Parses a type bound according to: /// ```ebnf /// TY_BOUND = TY_BOUND_NOPAREN | (TY_BOUND_NOPAREN) - /// TY_BOUND_NOPAREN = [TY_BOUND_MODIFIERS] [for<LT_PARAM_DEFS>] SIMPLE_PATH + /// TY_BOUND_NOPAREN = [TRAIT_BOUND_MODIFIERS] [for<LT_PARAM_DEFS>] SIMPLE_PATH /// ``` /// /// For example, this grammar accepts `~const ?for<'a: 'b> m::Trait<'a>`. @@ -909,7 +890,7 @@ impl<'a> Parser<'a> { &mut self, lo: Span, has_parens: bool, - modifiers: BoundModifiers, + modifiers: TraitBoundModifiers, leading_token: &Token, ) -> PResult<'a, GenericBound> { let mut lifetime_defs = self.parse_late_bound_lifetime_defs()?; @@ -991,9 +972,8 @@ impl<'a> Parser<'a> { } } - let modifier = modifiers.to_trait_bound_modifier(); let poly_trait = PolyTraitRef::new(lifetime_defs, path, lo.to(self.prev_token.span)); - Ok(GenericBound::Trait(poly_trait, modifier)) + Ok(GenericBound::Trait(poly_trait, modifiers)) } // recovers a `Fn(..)` parenthesized-style path from `fn(..)` diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_parse/src/validate_attr.rs index d10c8c92257..9fea3826652 100644 --- a/compiler/rustc_parse/src/validate_attr.rs +++ b/compiler/rustc_parse/src/validate_attr.rs @@ -56,7 +56,7 @@ pub fn parse_meta<'a>(sess: &'a ParseSess, attr: &Attribute) -> PResult<'a, Meta let res = match res { Ok(lit) => { if token_lit.suffix.is_some() { - let mut err = sess.span_diagnostic.struct_span_err( + let mut err = sess.dcx.struct_span_err( expr.span, "suffixed literals are not allowed in attributes", ); @@ -89,7 +89,7 @@ pub fn parse_meta<'a>(sess: &'a ParseSess, attr: &Attribute) -> PResult<'a, Meta // the error because an earlier error will have already // been reported. let msg = format!("attribute value must be a literal"); - let mut err = sess.span_diagnostic.struct_span_err(expr.span, msg); + let mut err = sess.dcx.struct_span_err(expr.span, msg); if let ast::ExprKind::Err = expr.kind { err.downgrade_to_delayed_bug(); } @@ -206,7 +206,7 @@ fn emit_malformed_attribute( if should_warn(name) { sess.buffer_lint(ILL_FORMED_ATTRIBUTE_INPUT, span, ast::CRATE_NODE_ID, msg); } else { - sess.span_diagnostic + sess.dcx .struct_span_err(span, error_msg) .span_suggestions( span, diff --git a/compiler/rustc_passes/src/diagnostic_items.rs b/compiler/rustc_passes/src/diagnostic_items.rs index 5f767c9acaa..d8b9f4fae87 100644 --- a/compiler/rustc_passes/src/diagnostic_items.rs +++ b/compiler/rustc_passes/src/diagnostic_items.rs @@ -83,9 +83,6 @@ fn all_diagnostic_items(tcx: TyCtxt<'_>, (): ()) -> DiagnosticItems { // Collect diagnostic items in other crates. for &cnum in tcx.crates(()).iter().chain(std::iter::once(&LOCAL_CRATE)) { - // We are collecting many DiagnosticItems hash maps into one - // DiagnosticItems hash map. The iteration order does not matter. - #[allow(rustc::potential_query_instability)] for (&name, &def_id) in &tcx.diagnostic_items(cnum).name_to_id { collect_item(tcx, &mut items, name, def_id); } diff --git a/compiler/rustc_passes/src/errors.rs b/compiler/rustc_passes/src/errors.rs index 58127445322..856256a0641 100644 --- a/compiler/rustc_passes/src/errors.rs +++ b/compiler/rustc_passes/src/errors.rs @@ -6,8 +6,8 @@ use std::{ use crate::fluent_generated as fluent; use rustc_ast::Label; use rustc_errors::{ - error_code, AddToDiagnostic, Applicability, Diagnostic, DiagnosticSymbolList, ErrorGuaranteed, - IntoDiagnostic, MultiSpan, + error_code, AddToDiagnostic, Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder, + DiagnosticSymbolList, EmissionGuarantee, IntoDiagnostic, Level, MultiSpan, }; use rustc_hir::{self as hir, ExprKind, Target}; use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; @@ -863,13 +863,11 @@ pub struct ItemFollowingInnerAttr { pub kind: &'static str, } -impl IntoDiagnostic<'_> for InvalidAttrAtCrateLevel { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for InvalidAttrAtCrateLevel { #[track_caller] - fn into_diagnostic( - self, - handler: &'_ rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::passes_invalid_attr_at_crate_level); + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = + DiagnosticBuilder::new(dcx, level, fluent::passes_invalid_attr_at_crate_level); diag.set_span(self.span); diag.set_arg("name", self.name); // Only emit an error with a suggestion if we can create a string out @@ -879,7 +877,7 @@ impl IntoDiagnostic<'_> for InvalidAttrAtCrateLevel { span, fluent::passes_suggestion, String::new(), - rustc_errors::Applicability::MachineApplicable, + Applicability::MachineApplicable, ); } if let Some(item) = self.item { @@ -1016,17 +1014,12 @@ pub struct BreakNonLoop<'a> { pub break_expr_span: Span, } -impl<'a> IntoDiagnostic<'_> for BreakNonLoop<'a> { +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'_, G> for BreakNonLoop<'a> { #[track_caller] - fn into_diagnostic( - self, - handler: &rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_span_err_with_code( - self.span, - fluent::passes_break_non_loop, - error_code!(E0571), - ); + fn into_diagnostic(self, dcx: &DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = DiagnosticBuilder::new(dcx, level, fluent::passes_break_non_loop); + diag.set_span(self.span); + diag.code(error_code!(E0571)); diag.set_arg("kind", self.kind); diag.span_label(self.span, fluent::passes_label); if let Some(head) = self.head { @@ -1165,17 +1158,12 @@ pub struct NakedFunctionsAsmBlock { pub non_asms: Vec<Span>, } -impl IntoDiagnostic<'_> for NakedFunctionsAsmBlock { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for NakedFunctionsAsmBlock { #[track_caller] - fn into_diagnostic( - self, - handler: &rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_span_err_with_code( - self.span, - fluent::passes_naked_functions_asm_block, - error_code!(E0787), - ); + fn into_diagnostic(self, dcx: &DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = DiagnosticBuilder::new(dcx, level, fluent::passes_naked_functions_asm_block); + diag.set_span(self.span); + diag.code(error_code!(E0787)); for span in self.multiple_asms.iter() { diag.span_label(*span, fluent::passes_label_multiple_asm); } @@ -1281,17 +1269,12 @@ pub struct NoMainErr { pub add_teach_note: bool, } -impl<'a> IntoDiagnostic<'a> for NoMainErr { +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for NoMainErr { #[track_caller] - fn into_diagnostic( - self, - handler: &'a rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'a, ErrorGuaranteed> { - let mut diag = handler.struct_span_err_with_code( - DUMMY_SP, - fluent::passes_no_main_function, - error_code!(E0601), - ); + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { + let mut diag = DiagnosticBuilder::new(dcx, level, fluent::passes_no_main_function); + diag.set_span(DUMMY_SP); + diag.code(error_code!(E0601)); diag.set_arg("crate_name", self.crate_name); diag.set_arg("filename", self.filename); diag.set_arg("has_filename", self.has_filename); @@ -1344,20 +1327,19 @@ pub struct DuplicateLangItem { pub(crate) duplicate: Duplicate, } -impl IntoDiagnostic<'_> for DuplicateLangItem { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for DuplicateLangItem { #[track_caller] - fn into_diagnostic( - self, - handler: &rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err_with_code( + fn into_diagnostic(self, dcx: &DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { + let mut diag = DiagnosticBuilder::new( + dcx, + level, match self.duplicate { Duplicate::Plain => fluent::passes_duplicate_lang_item, Duplicate::Crate => fluent::passes_duplicate_lang_item_crate, Duplicate::CrateDepends => fluent::passes_duplicate_lang_item_crate_depends, }, - error_code!(E0152), ); + diag.code(error_code!(E0152)); diag.set_arg("lang_item_name", self.lang_item_name); diag.set_arg("crate_name", self.crate_name); diag.set_arg("dependency_of", self.dependency_of); diff --git a/compiler/rustc_pattern_analysis/Cargo.toml b/compiler/rustc_pattern_analysis/Cargo.toml index 0639944a45c..2152f9fda00 100644 --- a/compiler/rustc_pattern_analysis/Cargo.toml +++ b/compiler/rustc_pattern_analysis/Cargo.toml @@ -5,18 +5,42 @@ edition = "2021" [dependencies] # tidy-alphabetical-start +derivative = "2.2.0" rustc_apfloat = "0.2.0" -rustc_arena = { path = "../rustc_arena" } -rustc_data_structures = { path = "../rustc_data_structures" } -rustc_errors = { path = "../rustc_errors" } -rustc_fluent_macro = { path = "../rustc_fluent_macro" } -rustc_hir = { path = "../rustc_hir" } -rustc_index = { path = "../rustc_index" } -rustc_macros = { path = "../rustc_macros" } -rustc_middle = { path = "../rustc_middle" } -rustc_session = { path = "../rustc_session" } -rustc_span = { path = "../rustc_span" } -rustc_target = { path = "../rustc_target" } -smallvec = { version = "1.8.1", features = ["union", "may_dangle"] } +rustc_arena = { path = "../rustc_arena", optional = true } +rustc_data_structures = { path = "../rustc_data_structures", optional = true } +rustc_errors = { path = "../rustc_errors", optional = true } +rustc_fluent_macro = { path = "../rustc_fluent_macro", optional = true } +rustc_hir = { path = "../rustc_hir", optional = true } +rustc_index = { path = "../rustc_index", default-features = false } +rustc_macros = { path = "../rustc_macros", optional = true } +rustc_middle = { path = "../rustc_middle", optional = true } +rustc_session = { path = "../rustc_session", optional = true } +rustc_span = { path = "../rustc_span", optional = true } +rustc_target = { path = "../rustc_target", optional = true } +smallvec = { version = "1.8.1", features = ["union"] } tracing = "0.1" +typed-arena = { version = "2.0.2", optional = true } # tidy-alphabetical-end + +[features] +default = ["rustc"] +# It's not possible to only enable the `typed_arena` dependency when the `rustc` feature is off, so +# we use another feature instead. The crate won't compile if one of these isn't enabled. +rustc = [ + "dep:rustc_arena", + "dep:rustc_data_structures", + "dep:rustc_errors", + "dep:rustc_fluent_macro", + "dep:rustc_hir", + "dep:rustc_macros", + "dep:rustc_middle", + "dep:rustc_session", + "dep:rustc_span", + "dep:rustc_target", + "smallvec/may_dangle", + "rustc_index/nightly", +] +stable = [ + "dep:typed-arena", +] diff --git a/compiler/rustc_pattern_analysis/src/constructor.rs b/compiler/rustc_pattern_analysis/src/constructor.rs index 6486ad8b483..b688051ca9c 100644 --- a/compiler/rustc_pattern_analysis/src/constructor.rs +++ b/compiler/rustc_pattern_analysis/src/constructor.rs @@ -40,7 +40,7 @@ //! - That have no non-trivial intersection with any of the constructors in the column (i.e. they're //! each either disjoint with or covered by any given column constructor). //! -//! We compute this in two steps: first [`crate::cx::MatchCheckCtxt::ctors_for_ty`] determines the +//! We compute this in two steps: first [`TypeCx::ctors_for_ty`] determines the //! set of all possible constructors for the type. Then [`ConstructorSet::split`] looks at the //! column of constructors and splits the set into groups accordingly. The precise invariants of //! [`ConstructorSet::split`] is described in [`SplitConstructorSet`]. @@ -136,7 +136,7 @@ //! the algorithm can't distinguish them from a nonempty constructor. The only known case where this //! could happen is the `[..]` pattern on `[!; N]` with `N > 0` so we must take care to not emit it. //! -//! This is all handled by [`crate::cx::MatchCheckCtxt::ctors_for_ty`] and +//! This is all handled by [`TypeCx::ctors_for_ty`] and //! [`ConstructorSet::split`]. The invariants of [`SplitConstructorSet`] are also of interest. //! //! @@ -155,17 +155,15 @@ use std::iter::once; use smallvec::SmallVec; use rustc_apfloat::ieee::{DoubleS, IeeeFloat, SingleS}; -use rustc_data_structures::fx::FxHashSet; -use rustc_hir::RangeEnd; +use rustc_index::bit_set::{BitSet, GrowableBitSet}; use rustc_index::IndexVec; -use rustc_middle::mir::Const; -use rustc_target::abi::VariantIdx; use self::Constructor::*; use self::MaybeInfiniteInt::*; use self::SliceKind::*; -use crate::usefulness::PatCtxt; +use crate::usefulness::PlaceCtxt; +use crate::TypeCx; /// Whether we have seen a constructor in the column or not. #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)] @@ -174,6 +172,21 @@ enum Presence { Seen, } +#[derive(Debug, Copy, Clone, PartialEq, Eq)] +pub enum RangeEnd { + Included, + Excluded, +} + +impl fmt::Display for RangeEnd { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.write_str(match self { + RangeEnd::Included => "..=", + RangeEnd::Excluded => "..", + }) + } +} + /// A possibly infinite integer. Values are encoded such that the ordering on `u128` matches the /// natural order on the original type. For example, `-128i8` is encoded as `0` and `127i8` as /// `255`. See `signed_bias` for details. @@ -221,7 +234,7 @@ impl MaybeInfiniteInt { match self { Finite(n) => match n.checked_sub(1) { Some(m) => Finite(m), - None => bug!(), + None => panic!("Called `MaybeInfiniteInt::minus_one` on 0"), }, JustAfterMax => Finite(u128::MAX), x => x, @@ -234,7 +247,7 @@ impl MaybeInfiniteInt { Some(m) => Finite(m), None => JustAfterMax, }, - JustAfterMax => bug!(), + JustAfterMax => panic!("Called `MaybeInfiniteInt::plus_one` on u128::MAX+1"), x => x, } } @@ -253,7 +266,7 @@ pub struct IntRange { impl IntRange { /// Best effort; will not know that e.g. `255u8..` is a singleton. - pub(crate) fn is_singleton(&self) -> bool { + pub fn is_singleton(&self) -> bool { // Since `lo` and `hi` can't be the same `Infinity` and `plus_one` never changes from finite // to infinite, this correctly only detects ranges that contain exacly one `Finite(x)`. self.lo.plus_one() == self.hi @@ -271,7 +284,7 @@ impl IntRange { } if lo >= hi { // This should have been caught earlier by E0030. - bug!("malformed range pattern: {lo:?}..{hi:?}"); + panic!("malformed range pattern: {lo:?}..{hi:?}"); } IntRange { lo, hi } } @@ -432,7 +445,7 @@ impl Slice { let kind = match (array_len, kind) { // If the middle `..` has length 0, we effectively have a fixed-length pattern. (Some(len), VarLen(prefix, suffix)) if prefix + suffix == len => FixedLen(len), - (Some(len), VarLen(prefix, suffix)) if prefix + suffix > len => bug!( + (Some(len), VarLen(prefix, suffix)) if prefix + suffix > len => panic!( "Slice pattern of length {} longer than its array length {len}", prefix + suffix ), @@ -532,7 +545,7 @@ impl Slice { // therefore `Presence::Seen` in the column. let mut min_var_len = usize::MAX; // Tracks the fixed-length slices we've seen, to mark them as `Presence::Seen`. - let mut seen_fixed_lens = FxHashSet::default(); + let mut seen_fixed_lens = GrowableBitSet::new_empty(); match &mut max_slice { VarLen(max_prefix_len, max_suffix_len) => { // A length larger than any fixed-length slice encountered. @@ -600,7 +613,7 @@ impl Slice { smaller_lengths.map(FixedLen).chain(once(max_slice)).map(move |kind| { let arity = kind.arity(); - let seen = if min_var_len <= arity || seen_fixed_lens.contains(&arity) { + let seen = if min_var_len <= arity || seen_fixed_lens.contains(arity) { Presence::Seen } else { Presence::Unseen @@ -629,13 +642,19 @@ impl OpaqueId { /// `specialize_constructor` returns the list of fields corresponding to a pattern, given a /// constructor. `Constructor::apply` reconstructs the pattern from a pair of `Constructor` and /// `Fields`. -#[derive(Clone, Debug, PartialEq)] -pub enum Constructor<'tcx> { - /// The constructor for patterns that have a single constructor, like tuples, struct patterns, - /// and references. Fixed-length arrays are treated separately with `Slice`. - Single, +#[derive(derivative::Derivative)] +#[derivative(Debug(bound = ""), Clone(bound = ""), PartialEq(bound = ""))] +pub enum Constructor<Cx: TypeCx> { + /// Tuples and structs. + Struct, /// Enum variants. - Variant(VariantIdx), + Variant(Cx::VariantIdx), + /// References + Ref, + /// Array and slice patterns. + Slice(Slice), + /// Union field accesses. + UnionField, /// Booleans Bool(bool), /// Ranges of integer literal values (`2`, `2..=5` or `2..5`). @@ -644,9 +663,7 @@ pub enum Constructor<'tcx> { F32Range(IeeeFloat<SingleS>, IeeeFloat<SingleS>, RangeEnd), F64Range(IeeeFloat<DoubleS>, IeeeFloat<DoubleS>, RangeEnd), /// String literals. Strings are not quite the same as `&[u8]` so we treat them separately. - Str(Const<'tcx>), - /// Array and slice patterns. - Slice(Slice), + Str(Cx::StrLit), /// Constants that must not be matched structurally. They are treated as black boxes for the /// purposes of exhaustiveness: we must not inspect them, and they don't count towards making a /// match exhaustive. @@ -669,12 +686,12 @@ pub enum Constructor<'tcx> { Missing, } -impl<'tcx> Constructor<'tcx> { +impl<Cx: TypeCx> Constructor<Cx> { pub(crate) fn is_non_exhaustive(&self) -> bool { matches!(self, NonExhaustive) } - pub(crate) fn as_variant(&self) -> Option<VariantIdx> { + pub(crate) fn as_variant(&self) -> Option<Cx::VariantIdx> { match self { Variant(i) => Some(*i), _ => None, @@ -701,8 +718,8 @@ impl<'tcx> Constructor<'tcx> { /// The number of fields for this constructor. This must be kept in sync with /// `Fields::wildcards`. - pub(crate) fn arity(&self, pcx: &PatCtxt<'_, '_, 'tcx>) -> usize { - pcx.cx.ctor_arity(self, pcx.ty) + pub(crate) fn arity(&self, pcx: &PlaceCtxt<'_, '_, Cx>) -> usize { + pcx.ctor_arity(self) } /// Returns whether `self` is covered by `other`, i.e. whether `self` is a subset of `other`. @@ -710,20 +727,20 @@ impl<'tcx> Constructor<'tcx> { /// this checks for inclusion. // We inline because this has a single call site in `Matrix::specialize_constructor`. #[inline] - pub(crate) fn is_covered_by<'p>(&self, pcx: &PatCtxt<'_, 'p, 'tcx>, other: &Self) -> bool { + pub(crate) fn is_covered_by<'p>(&self, pcx: &PlaceCtxt<'_, 'p, Cx>, other: &Self) -> bool { match (self, other) { - (Wildcard, _) => { - span_bug!( - pcx.cx.scrut_span, - "Constructor splitting should not have returned `Wildcard`" - ) - } + (Wildcard, _) => pcx + .mcx + .tycx + .bug(format_args!("Constructor splitting should not have returned `Wildcard`")), // Wildcards cover anything (_, Wildcard) => true, // Only a wildcard pattern can match these special constructors. (Missing { .. } | NonExhaustive | Hidden, _) => false, - (Single, Single) => true, + (Struct, Struct) => true, + (Ref, Ref) => true, + (UnionField, UnionField) => true, (Variant(self_id), Variant(other_id)) => self_id == other_id, (Bool(self_b), Bool(other_b)) => self_b == other_b, @@ -756,12 +773,9 @@ impl<'tcx> Constructor<'tcx> { (Opaque(self_id), Opaque(other_id)) => self_id == other_id, (Opaque(..), _) | (_, Opaque(..)) => false, - _ => span_bug!( - pcx.cx.scrut_span, - "trying to compare incompatible constructors {:?} and {:?}", - self, - other - ), + _ => pcx.mcx.tycx.bug(format_args!( + "trying to compare incompatible constructors {self:?} and {other:?}" + )), } } } @@ -785,13 +799,16 @@ pub enum VariantVisibility { /// In terms of division of responsibility, [`ConstructorSet::split`] handles all of the /// `exhaustive_patterns` feature. #[derive(Debug)] -pub enum ConstructorSet { - /// The type has a single constructor, e.g. `&T` or a struct. `empty` tracks whether the - /// constructor is empty. - Single { empty: bool }, +pub enum ConstructorSet<Cx: TypeCx> { + /// The type is a tuple or struct. `empty` tracks whether the type is empty. + Struct { empty: bool }, /// This type has the following list of constructors. If `variants` is empty and /// `non_exhaustive` is false, don't use this; use `NoConstructors` instead. - Variants { variants: IndexVec<VariantIdx, VariantVisibility>, non_exhaustive: bool }, + Variants { variants: IndexVec<Cx::VariantIdx, VariantVisibility>, non_exhaustive: bool }, + /// The type is `&T`. + Ref, + /// The type is a union. + Union, /// Booleans. Bool, /// The type is spanned by integer values. The range or ranges give the set of allowed values. @@ -830,25 +847,25 @@ pub enum ConstructorSet { /// of the `ConstructorSet` for the type, yet if we forgot to include them in `present` we would be /// ignoring any row with `Opaque`s in the algorithm. Hence the importance of point 4. #[derive(Debug)] -pub(crate) struct SplitConstructorSet<'tcx> { - pub(crate) present: SmallVec<[Constructor<'tcx>; 1]>, - pub(crate) missing: Vec<Constructor<'tcx>>, - pub(crate) missing_empty: Vec<Constructor<'tcx>>, +pub(crate) struct SplitConstructorSet<Cx: TypeCx> { + pub(crate) present: SmallVec<[Constructor<Cx>; 1]>, + pub(crate) missing: Vec<Constructor<Cx>>, + pub(crate) missing_empty: Vec<Constructor<Cx>>, } -impl ConstructorSet { +impl<Cx: TypeCx> ConstructorSet<Cx> { /// This analyzes a column of constructors to 1/ determine which constructors of the type (if /// any) are missing; 2/ split constructors to handle non-trivial intersections e.g. on ranges /// or slices. This can get subtle; see [`SplitConstructorSet`] for details of this operation /// and its invariants. #[instrument(level = "debug", skip(self, pcx, ctors), ret)] - pub(crate) fn split<'a, 'tcx>( + pub(crate) fn split<'a>( &self, - pcx: &PatCtxt<'_, '_, 'tcx>, - ctors: impl Iterator<Item = &'a Constructor<'tcx>> + Clone, - ) -> SplitConstructorSet<'tcx> + pcx: &PlaceCtxt<'_, '_, Cx>, + ctors: impl Iterator<Item = &'a Constructor<Cx>> + Clone, + ) -> SplitConstructorSet<Cx> where - 'tcx: 'a, + Cx: 'a, { let mut present: SmallVec<[_; 1]> = SmallVec::new(); // Empty constructors found missing. @@ -866,22 +883,39 @@ impl ConstructorSet { } match self { - ConstructorSet::Single { empty } => { + ConstructorSet::Struct { empty } => { if !seen.is_empty() { - present.push(Single); + present.push(Struct); } else if *empty { - missing_empty.push(Single); + missing_empty.push(Struct); + } else { + missing.push(Struct); + } + } + ConstructorSet::Ref => { + if !seen.is_empty() { + present.push(Ref); } else { - missing.push(Single); + missing.push(Ref); + } + } + ConstructorSet::Union => { + if !seen.is_empty() { + present.push(UnionField); + } else { + missing.push(UnionField); } } ConstructorSet::Variants { variants, non_exhaustive } => { - let seen_set: FxHashSet<_> = seen.iter().map(|c| c.as_variant().unwrap()).collect(); + let mut seen_set: BitSet<_> = BitSet::new_empty(variants.len()); + for idx in seen.iter().map(|c| c.as_variant().unwrap()) { + seen_set.insert(idx); + } let mut skipped_a_hidden_variant = false; for (idx, visibility) in variants.iter_enumerated() { let ctor = Variant(idx); - if seen_set.contains(&idx) { + if seen_set.contains(idx) { present.push(ctor); } else { // We only put visible variants directly into `missing`. @@ -975,8 +1009,8 @@ impl ConstructorSet { // We have now grouped all the constructors into 3 buckets: present, missing, missing_empty. // In the absence of the `exhaustive_patterns` feature however, we don't count nested empty // types as empty. Only non-nested `!` or `enum Foo {}` are considered empty. - if !pcx.cx.tcx.features().exhaustive_patterns - && !(pcx.is_top_level && matches!(self, Self::NoConstructors)) + if !pcx.mcx.tycx.is_exhaustive_patterns_feature_on() + && !(pcx.is_scrutinee && matches!(self, Self::NoConstructors)) { // Treat all missing constructors as nonempty. // This clears `missing_empty`. diff --git a/compiler/rustc_pattern_analysis/src/errors.rs b/compiler/rustc_pattern_analysis/src/errors.rs index 0efa8a0ec08..88770b0c43b 100644 --- a/compiler/rustc_pattern_analysis/src/errors.rs +++ b/compiler/rustc_pattern_analysis/src/errors.rs @@ -1,11 +1,11 @@ -use crate::{cx::MatchCheckCtxt, pat::WitnessPat}; - use rustc_errors::{AddToDiagnostic, Diagnostic, SubdiagnosticMessage}; use rustc_macros::{LintDiagnostic, Subdiagnostic}; use rustc_middle::thir::Pat; use rustc_middle::ty::Ty; use rustc_span::Span; +use crate::rustc::{RustcMatchCheckCtxt, WitnessPat}; + #[derive(Subdiagnostic)] #[label(pattern_analysis_uncovered)] pub struct Uncovered<'tcx> { @@ -21,8 +21,8 @@ pub struct Uncovered<'tcx> { impl<'tcx> Uncovered<'tcx> { pub fn new<'p>( span: Span, - cx: &MatchCheckCtxt<'p, 'tcx>, - witnesses: Vec<WitnessPat<'tcx>>, + cx: &RustcMatchCheckCtxt<'p, 'tcx>, + witnesses: Vec<WitnessPat<'p, 'tcx>>, ) -> Self { let witness_1 = cx.hoist_witness_pat(witnesses.get(0).unwrap()); Self { diff --git a/compiler/rustc_pattern_analysis/src/lib.rs b/compiler/rustc_pattern_analysis/src/lib.rs index 07730aa49d3..a1c9b157666 100644 --- a/compiler/rustc_pattern_analysis/src/lib.rs +++ b/compiler/rustc_pattern_analysis/src/lib.rs @@ -1,54 +1,132 @@ //! Analysis of patterns, notably match exhaustiveness checking. pub mod constructor; -pub mod cx; +#[cfg(feature = "rustc")] pub mod errors; +#[cfg(feature = "rustc")] pub(crate) mod lints; pub mod pat; +#[cfg(feature = "rustc")] +pub mod rustc; pub mod usefulness; #[macro_use] extern crate tracing; +#[cfg(feature = "rustc")] #[macro_use] extern crate rustc_middle; +#[cfg(feature = "rustc")] rustc_fluent_macro::fluent_messages! { "../messages.ftl" } -use lints::PatternColumn; -use rustc_hir::HirId; +use std::fmt; + +use rustc_index::Idx; +#[cfg(feature = "rustc")] use rustc_middle::ty::Ty; -use usefulness::{compute_match_usefulness, UsefulnessReport}; -use crate::cx::MatchCheckCtxt; -use crate::lints::{lint_nonexhaustive_missing_variants, lint_overlapping_range_endpoints}; +use crate::constructor::{Constructor, ConstructorSet}; +#[cfg(feature = "rustc")] +use crate::lints::{ + lint_nonexhaustive_missing_variants, lint_overlapping_range_endpoints, PatternColumn, +}; use crate::pat::DeconstructedPat; +#[cfg(feature = "rustc")] +use crate::rustc::RustcMatchCheckCtxt; +#[cfg(feature = "rustc")] +use crate::usefulness::{compute_match_usefulness, ValidityConstraint}; + +// It's not possible to only enable the `typed_arena` dependency when the `rustc` feature is off, so +// we use another feature instead. The crate won't compile if one of these isn't enabled. +#[cfg(feature = "rustc")] +pub(crate) use rustc_arena::TypedArena; +#[cfg(feature = "stable")] +pub(crate) use typed_arena::Arena as TypedArena; + +pub trait Captures<'a> {} +impl<'a, T: ?Sized> Captures<'a> for T {} + +/// Context that provides type information about constructors. +/// +/// Most of the crate is parameterized on a type that implements this trait. +pub trait TypeCx: Sized + fmt::Debug { + /// The type of a pattern. + type Ty: Copy + Clone + fmt::Debug; // FIXME: remove Copy + /// The index of an enum variant. + type VariantIdx: Clone + Idx; + /// A string literal + type StrLit: Clone + PartialEq + fmt::Debug; + /// Extra data to store in a match arm. + type ArmData: Copy + Clone + fmt::Debug; + /// Extra data to store in a pattern. + type PatData: Clone; + + /// FIXME(Nadrieril): `Cx` should only give us revealed types. + fn reveal_opaque_ty(&self, ty: Self::Ty) -> Self::Ty; + fn is_exhaustive_patterns_feature_on(&self) -> bool; + + /// The number of fields for this constructor. + fn ctor_arity(&self, ctor: &Constructor<Self>, ty: Self::Ty) -> usize; + + /// The types of the fields for this constructor. The result must have a length of + /// `ctor_arity()`. + fn ctor_sub_tys(&self, ctor: &Constructor<Self>, ty: Self::Ty) -> &[Self::Ty]; + + /// The set of all the constructors for `ty`. + /// + /// This must follow the invariants of `ConstructorSet` + fn ctors_for_ty(&self, ty: Self::Ty) -> ConstructorSet<Self>; + + /// Best-effort `Debug` implementation. + fn debug_pat(f: &mut fmt::Formatter<'_>, pat: &DeconstructedPat<'_, Self>) -> fmt::Result; + + /// Raise a bug. + fn bug(&self, fmt: fmt::Arguments<'_>) -> !; +} + +/// Context that provides information global to a match. +#[derive(derivative::Derivative)] +#[derivative(Clone(bound = ""), Copy(bound = ""))] +pub struct MatchCtxt<'a, 'p, Cx: TypeCx> { + /// The context for type information. + pub tycx: &'a Cx, + /// An arena to store the wildcards we produce during analysis. + pub wildcard_arena: &'a TypedArena<DeconstructedPat<'p, Cx>>, +} /// The arm of a match expression. -#[derive(Clone, Copy, Debug)] -pub struct MatchArm<'p, 'tcx> { - /// The pattern must have been lowered through `check_match::MatchVisitor::lower_pattern`. - pub pat: &'p DeconstructedPat<'p, 'tcx>, - pub hir_id: HirId, +#[derive(Debug)] +#[derive(derivative::Derivative)] +#[derivative(Clone(bound = ""), Copy(bound = ""))] +pub struct MatchArm<'p, Cx: TypeCx> { + pub pat: &'p DeconstructedPat<'p, Cx>, pub has_guard: bool, + pub arm_data: Cx::ArmData, } /// The entrypoint for this crate. Computes whether a match is exhaustive and which of its arms are /// useful, and runs some lints. +#[cfg(feature = "rustc")] pub fn analyze_match<'p, 'tcx>( - cx: &MatchCheckCtxt<'p, 'tcx>, - arms: &[MatchArm<'p, 'tcx>], + tycx: &RustcMatchCheckCtxt<'p, 'tcx>, + arms: &[rustc::MatchArm<'p, 'tcx>], scrut_ty: Ty<'tcx>, -) -> UsefulnessReport<'p, 'tcx> { - let pat_column = PatternColumn::new(arms); +) -> rustc::UsefulnessReport<'p, 'tcx> { + // Arena to store the extra wildcards we construct during analysis. + let wildcard_arena = tycx.pattern_arena; + let scrut_validity = ValidityConstraint::from_bool(tycx.known_valid_scrutinee); + let cx = MatchCtxt { tycx, wildcard_arena }; - let report = compute_match_usefulness(cx, arms, scrut_ty); + let report = compute_match_usefulness(cx, arms, scrut_ty, scrut_validity); + + let pat_column = PatternColumn::new(arms); // Lint on ranges that overlap on their endpoints, which is likely a mistake. lint_overlapping_range_endpoints(cx, &pat_column); // Run the non_exhaustive_omitted_patterns lint. Only run on refutable patterns to avoid hitting // `if let`s. Only run if the match is exhaustive otherwise the error is redundant. - if cx.refutable && report.non_exhaustiveness_witnesses.is_empty() { + if tycx.refutable && report.non_exhaustiveness_witnesses.is_empty() { lint_nonexhaustive_missing_variants(cx, arms, &pat_column, scrut_ty) } diff --git a/compiler/rustc_pattern_analysis/src/lints.rs b/compiler/rustc_pattern_analysis/src/lints.rs index 8ab559c9e7a..2be6e8e3db3 100644 --- a/compiler/rustc_pattern_analysis/src/lints.rs +++ b/compiler/rustc_pattern_analysis/src/lints.rs @@ -6,15 +6,16 @@ use rustc_session::lint; use rustc_session::lint::builtin::NON_EXHAUSTIVE_OMITTED_PATTERNS; use rustc_span::Span; -use crate::constructor::{Constructor, IntRange, MaybeInfiniteInt, SplitConstructorSet}; -use crate::cx::MatchCheckCtxt; +use crate::constructor::{IntRange, MaybeInfiniteInt}; use crate::errors::{ NonExhaustiveOmittedPattern, NonExhaustiveOmittedPatternLintOnArm, Overlap, OverlappingRangeEndpoints, Uncovered, }; -use crate::pat::{DeconstructedPat, WitnessPat}; -use crate::usefulness::PatCtxt; -use crate::MatchArm; +use crate::rustc::{ + Constructor, DeconstructedPat, MatchArm, MatchCtxt, PlaceCtxt, RustcMatchCheckCtxt, + SplitConstructorSet, WitnessPat, +}; +use crate::TypeCx; /// A column of patterns in the matrix, where a column is the intuitive notion of "subpatterns that /// inspect the same subvalue/place". @@ -27,11 +28,11 @@ use crate::MatchArm; /// /// This is not used in the main algorithm; only in lints. #[derive(Debug)] -pub(crate) struct PatternColumn<'p, 'tcx> { - patterns: Vec<&'p DeconstructedPat<'p, 'tcx>>, +pub(crate) struct PatternColumn<'a, 'p, 'tcx> { + patterns: Vec<&'a DeconstructedPat<'p, 'tcx>>, } -impl<'p, 'tcx> PatternColumn<'p, 'tcx> { +impl<'a, 'p, 'tcx> PatternColumn<'a, 'p, 'tcx> { pub(crate) fn new(arms: &[MatchArm<'p, 'tcx>]) -> Self { let mut patterns = Vec::with_capacity(arms.len()); for arm in arms { @@ -47,32 +48,23 @@ impl<'p, 'tcx> PatternColumn<'p, 'tcx> { fn is_empty(&self) -> bool { self.patterns.is_empty() } - fn head_ty(&self) -> Option<Ty<'tcx>> { + fn head_ty(&self, cx: MatchCtxt<'a, 'p, 'tcx>) -> Option<Ty<'tcx>> { if self.patterns.len() == 0 { return None; } - // If the type is opaque and it is revealed anywhere in the column, we take the revealed - // version. Otherwise we could encounter constructors for the revealed type and crash. - let is_opaque = |ty: Ty<'tcx>| matches!(ty.kind(), ty::Alias(ty::Opaque, ..)); - let first_ty = self.patterns[0].ty(); - if is_opaque(first_ty) { - for pat in &self.patterns { - let ty = pat.ty(); - if !is_opaque(ty) { - return Some(ty); - } - } - } - Some(first_ty) + + let ty = self.patterns[0].ty(); + // FIXME(Nadrieril): `Cx` should only give us revealed types. + Some(cx.tycx.reveal_opaque_ty(ty)) } /// Do constructor splitting on the constructors of the column. - fn analyze_ctors(&self, pcx: &PatCtxt<'_, 'p, 'tcx>) -> SplitConstructorSet<'tcx> { + fn analyze_ctors(&self, pcx: &PlaceCtxt<'_, 'p, 'tcx>) -> SplitConstructorSet<'p, 'tcx> { let column_ctors = self.patterns.iter().map(|p| p.ctor()); - pcx.cx.ctors_for_ty(pcx.ty).split(pcx, column_ctors) + pcx.ctors_for_ty().split(pcx, column_ctors) } - fn iter<'a>(&'a self) -> impl Iterator<Item = &'p DeconstructedPat<'p, 'tcx>> + Captures<'a> { + fn iter<'b>(&'b self) -> impl Iterator<Item = &'a DeconstructedPat<'p, 'tcx>> + Captures<'b> { self.patterns.iter().copied() } @@ -81,7 +73,11 @@ impl<'p, 'tcx> PatternColumn<'p, 'tcx> { /// This returns one column per field of the constructor. They usually all have the same length /// (the number of patterns in `self` that matched `ctor`), except that we expand or-patterns /// which may change the lengths. - fn specialize(&self, pcx: &PatCtxt<'_, 'p, 'tcx>, ctor: &Constructor<'tcx>) -> Vec<Self> { + fn specialize( + &self, + pcx: &PlaceCtxt<'a, 'p, 'tcx>, + ctor: &Constructor<'p, 'tcx>, + ) -> Vec<PatternColumn<'a, 'p, 'tcx>> { let arity = ctor.arity(pcx); if arity == 0 { return Vec::new(); @@ -117,14 +113,14 @@ impl<'p, 'tcx> PatternColumn<'p, 'tcx> { /// Traverse the patterns to collect any variants of a non_exhaustive enum that fail to be mentioned /// in a given column. #[instrument(level = "debug", skip(cx), ret)] -fn collect_nonexhaustive_missing_variants<'p, 'tcx>( - cx: &MatchCheckCtxt<'p, 'tcx>, - column: &PatternColumn<'p, 'tcx>, -) -> Vec<WitnessPat<'tcx>> { - let Some(ty) = column.head_ty() else { +fn collect_nonexhaustive_missing_variants<'a, 'p, 'tcx>( + cx: MatchCtxt<'a, 'p, 'tcx>, + column: &PatternColumn<'a, 'p, 'tcx>, +) -> Vec<WitnessPat<'p, 'tcx>> { + let Some(ty) = column.head_ty(cx) else { return Vec::new(); }; - let pcx = &PatCtxt::new_dummy(cx, ty); + let pcx = &PlaceCtxt::new_dummy(cx, ty); let set = column.analyze_ctors(pcx); if set.present.is_empty() { @@ -135,7 +131,7 @@ fn collect_nonexhaustive_missing_variants<'p, 'tcx>( } let mut witnesses = Vec::new(); - if cx.is_foreign_non_exhaustive_enum(ty) { + if cx.tycx.is_foreign_non_exhaustive_enum(ty) { witnesses.extend( set.missing .into_iter() @@ -164,14 +160,15 @@ fn collect_nonexhaustive_missing_variants<'p, 'tcx>( witnesses } -pub(crate) fn lint_nonexhaustive_missing_variants<'p, 'tcx>( - cx: &MatchCheckCtxt<'p, 'tcx>, +pub(crate) fn lint_nonexhaustive_missing_variants<'a, 'p, 'tcx>( + cx: MatchCtxt<'a, 'p, 'tcx>, arms: &[MatchArm<'p, 'tcx>], - pat_column: &PatternColumn<'p, 'tcx>, + pat_column: &PatternColumn<'a, 'p, 'tcx>, scrut_ty: Ty<'tcx>, ) { + let rcx: &RustcMatchCheckCtxt<'_, '_> = cx.tycx; if !matches!( - cx.tcx.lint_level_at_node(NON_EXHAUSTIVE_OMITTED_PATTERNS, cx.match_lint_level).0, + rcx.tcx.lint_level_at_node(NON_EXHAUSTIVE_OMITTED_PATTERNS, rcx.match_lint_level).0, rustc_session::lint::Level::Allow ) { let witnesses = collect_nonexhaustive_missing_variants(cx, pat_column); @@ -180,13 +177,13 @@ pub(crate) fn lint_nonexhaustive_missing_variants<'p, 'tcx>( // is not exhaustive enough. // // NB: The partner lint for structs lives in `compiler/rustc_hir_analysis/src/check/pat.rs`. - cx.tcx.emit_spanned_lint( + rcx.tcx.emit_spanned_lint( NON_EXHAUSTIVE_OMITTED_PATTERNS, - cx.match_lint_level, - cx.scrut_span, + rcx.match_lint_level, + rcx.scrut_span, NonExhaustiveOmittedPattern { scrut_ty, - uncovered: Uncovered::new(cx.scrut_span, cx, witnesses), + uncovered: Uncovered::new(rcx.scrut_span, rcx, witnesses), }, ); } @@ -196,17 +193,17 @@ pub(crate) fn lint_nonexhaustive_missing_variants<'p, 'tcx>( // usage of the lint. for arm in arms { let (lint_level, lint_level_source) = - cx.tcx.lint_level_at_node(NON_EXHAUSTIVE_OMITTED_PATTERNS, arm.hir_id); + rcx.tcx.lint_level_at_node(NON_EXHAUSTIVE_OMITTED_PATTERNS, arm.arm_data); if !matches!(lint_level, rustc_session::lint::Level::Allow) { let decorator = NonExhaustiveOmittedPatternLintOnArm { lint_span: lint_level_source.span(), - suggest_lint_on_match: cx.whole_match_span.map(|span| span.shrink_to_lo()), + suggest_lint_on_match: rcx.whole_match_span.map(|span| span.shrink_to_lo()), lint_level: lint_level.as_str(), lint_name: "non_exhaustive_omitted_patterns", }; use rustc_errors::DecorateLint; - let mut err = cx.tcx.sess.struct_span_warn(arm.pat.span(), ""); + let mut err = rcx.tcx.sess.struct_span_warn(*arm.pat.data().unwrap(), ""); err.set_primary_message(decorator.msg()); decorator.decorate_lint(&mut err); err.emit(); @@ -217,28 +214,29 @@ pub(crate) fn lint_nonexhaustive_missing_variants<'p, 'tcx>( /// Traverse the patterns to warn the user about ranges that overlap on their endpoints. #[instrument(level = "debug", skip(cx))] -pub(crate) fn lint_overlapping_range_endpoints<'p, 'tcx>( - cx: &MatchCheckCtxt<'p, 'tcx>, - column: &PatternColumn<'p, 'tcx>, +pub(crate) fn lint_overlapping_range_endpoints<'a, 'p, 'tcx>( + cx: MatchCtxt<'a, 'p, 'tcx>, + column: &PatternColumn<'a, 'p, 'tcx>, ) { - let Some(ty) = column.head_ty() else { + let Some(ty) = column.head_ty(cx) else { return; }; - let pcx = &PatCtxt::new_dummy(cx, ty); + let pcx = &PlaceCtxt::new_dummy(cx, ty); + let rcx: &RustcMatchCheckCtxt<'_, '_> = cx.tycx; let set = column.analyze_ctors(pcx); if matches!(ty.kind(), ty::Char | ty::Int(_) | ty::Uint(_)) { let emit_lint = |overlap: &IntRange, this_span: Span, overlapped_spans: &[Span]| { - let overlap_as_pat = cx.hoist_pat_range(overlap, ty); + let overlap_as_pat = rcx.hoist_pat_range(overlap, ty); let overlaps: Vec<_> = overlapped_spans .iter() .copied() .map(|span| Overlap { range: overlap_as_pat.clone(), span }) .collect(); - cx.tcx.emit_spanned_lint( + rcx.tcx.emit_spanned_lint( lint::builtin::OVERLAPPING_RANGE_ENDPOINTS, - cx.match_lint_level, + rcx.match_lint_level, this_span, OverlappingRangeEndpoints { overlap: overlaps, range: this_span }, ); @@ -255,8 +253,8 @@ pub(crate) fn lint_overlapping_range_endpoints<'p, 'tcx>( let mut suffixes: SmallVec<[_; 1]> = Default::default(); // Iterate on patterns that contained `overlap`. for pat in column.iter() { - let this_span = pat.span(); let Constructor::IntRange(this_range) = pat.ctor() else { continue }; + let this_span = *pat.data().unwrap(); if this_range.is_singleton() { // Don't lint when one of the ranges is a singleton. continue; diff --git a/compiler/rustc_pattern_analysis/src/pat.rs b/compiler/rustc_pattern_analysis/src/pat.rs index 404651124ad..9efd3e864da 100644 --- a/compiler/rustc_pattern_analysis/src/pat.rs +++ b/compiler/rustc_pattern_analysis/src/pat.rs @@ -5,16 +5,11 @@ use std::fmt; use smallvec::{smallvec, SmallVec}; -use rustc_data_structures::captures::Captures; -use rustc_middle::ty::{self, Ty}; -use rustc_span::{Span, DUMMY_SP}; +use crate::constructor::{Constructor, Slice, SliceKind}; +use crate::usefulness::PlaceCtxt; +use crate::{Captures, TypeCx}; use self::Constructor::*; -use self::SliceKind::*; - -use crate::constructor::{Constructor, SliceKind}; -use crate::cx::MatchCheckCtxt; -use crate::usefulness::PatCtxt; /// Values and patterns can be represented as a constructor applied to some fields. This represents /// a pattern in this form. @@ -27,34 +22,36 @@ use crate::usefulness::PatCtxt; /// This happens if a private or `non_exhaustive` field is uninhabited, because the code mustn't /// observe that it is uninhabited. In that case that field is not included in `fields`. Care must /// be taken when converting to/from `thir::Pat`. -pub struct DeconstructedPat<'p, 'tcx> { - ctor: Constructor<'tcx>, - fields: &'p [DeconstructedPat<'p, 'tcx>], - ty: Ty<'tcx>, - span: Span, +pub struct DeconstructedPat<'p, Cx: TypeCx> { + ctor: Constructor<Cx>, + fields: &'p [DeconstructedPat<'p, Cx>], + ty: Cx::Ty, + /// Extra data to store in a pattern. `None` if the pattern is a wildcard that does not + /// correspond to a user-supplied pattern. + data: Option<Cx::PatData>, /// Whether removing this arm would change the behavior of the match expression. useful: Cell<bool>, } -impl<'p, 'tcx> DeconstructedPat<'p, 'tcx> { - pub fn wildcard(ty: Ty<'tcx>, span: Span) -> Self { - Self::new(Wildcard, &[], ty, span) +impl<'p, Cx: TypeCx> DeconstructedPat<'p, Cx> { + pub fn wildcard(ty: Cx::Ty) -> Self { + DeconstructedPat { ctor: Wildcard, fields: &[], ty, data: None, useful: Cell::new(false) } } pub fn new( - ctor: Constructor<'tcx>, - fields: &'p [DeconstructedPat<'p, 'tcx>], - ty: Ty<'tcx>, - span: Span, + ctor: Constructor<Cx>, + fields: &'p [DeconstructedPat<'p, Cx>], + ty: Cx::Ty, + data: Cx::PatData, ) -> Self { - DeconstructedPat { ctor, fields, ty, span, useful: Cell::new(false) } + DeconstructedPat { ctor, fields, ty, data: Some(data), useful: Cell::new(false) } } pub(crate) fn is_or_pat(&self) -> bool { matches!(self.ctor, Or) } /// Expand this (possibly-nested) or-pattern into its alternatives. - pub(crate) fn flatten_or_pat(&'p self) -> SmallVec<[&'p Self; 1]> { + pub(crate) fn flatten_or_pat(&self) -> SmallVec<[&Self; 1]> { if self.is_or_pat() { self.iter_fields().flat_map(|p| p.flatten_or_pat()).collect() } else { @@ -62,66 +59,66 @@ impl<'p, 'tcx> DeconstructedPat<'p, 'tcx> { } } - pub fn ctor(&self) -> &Constructor<'tcx> { + pub fn ctor(&self) -> &Constructor<Cx> { &self.ctor } - pub fn ty(&self) -> Ty<'tcx> { + pub fn ty(&self) -> Cx::Ty { self.ty } - pub fn span(&self) -> Span { - self.span + /// Returns the extra data stored in a pattern. Returns `None` if the pattern is a wildcard that + /// does not correspond to a user-supplied pattern. + pub fn data(&self) -> Option<&Cx::PatData> { + self.data.as_ref() } pub fn iter_fields<'a>( &'a self, - ) -> impl Iterator<Item = &'p DeconstructedPat<'p, 'tcx>> + Captures<'a> { + ) -> impl Iterator<Item = &'p DeconstructedPat<'p, Cx>> + Captures<'a> { self.fields.iter() } /// Specialize this pattern with a constructor. /// `other_ctor` can be different from `self.ctor`, but must be covered by it. pub(crate) fn specialize<'a>( - &'a self, - pcx: &PatCtxt<'_, 'p, 'tcx>, - other_ctor: &Constructor<'tcx>, - ) -> SmallVec<[&'p DeconstructedPat<'p, 'tcx>; 2]> { + &self, + pcx: &PlaceCtxt<'a, 'p, Cx>, + other_ctor: &Constructor<Cx>, + ) -> SmallVec<[&'a DeconstructedPat<'p, Cx>; 2]> { + let wildcard_sub_tys = || { + let tys = pcx.ctor_sub_tys(other_ctor); + tys.iter() + .map(|ty| DeconstructedPat::wildcard(*ty)) + .map(|pat| pcx.mcx.wildcard_arena.alloc(pat) as &_) + .collect() + }; match (&self.ctor, other_ctor) { - (Wildcard, _) => { - // We return a wildcard for each field of `other_ctor`. - pcx.cx.ctor_wildcard_fields(other_ctor, pcx.ty).iter().collect() - } - (Slice(self_slice), Slice(other_slice)) - if self_slice.arity() != other_slice.arity() => - { - // The only tricky case: two slices of different arity. Since `self_slice` covers - // `other_slice`, `self_slice` must be `VarLen`, i.e. of the form - // `[prefix, .., suffix]`. Moreover `other_slice` is guaranteed to have a larger - // arity. So we fill the middle part with enough wildcards to reach the length of - // the new, larger slice. - match self_slice.kind { - FixedLen(_) => bug!("{:?} doesn't cover {:?}", self_slice, other_slice), - VarLen(prefix, suffix) => { - let (ty::Slice(inner_ty) | ty::Array(inner_ty, _)) = *self.ty.kind() else { - bug!("bad slice pattern {:?} {:?}", self.ctor, self.ty); - }; - let prefix = &self.fields[..prefix]; - let suffix = &self.fields[self_slice.arity() - suffix..]; - let wildcard: &_ = pcx - .cx - .pattern_arena - .alloc(DeconstructedPat::wildcard(inner_ty, DUMMY_SP)); - let extra_wildcards = other_slice.arity() - self_slice.arity(); - let extra_wildcards = (0..extra_wildcards).map(|_| wildcard); - prefix.iter().chain(extra_wildcards).chain(suffix).collect() - } + // Return a wildcard for each field of `other_ctor`. + (Wildcard, _) => wildcard_sub_tys(), + // The only non-trivial case: two slices of different arity. `other_slice` is + // guaranteed to have a larger arity, so we fill the middle part with enough + // wildcards to reach the length of the new, larger slice. + ( + &Slice(self_slice @ Slice { kind: SliceKind::VarLen(prefix, suffix), .. }), + &Slice(other_slice), + ) if self_slice.arity() != other_slice.arity() => { + // Start with a slice of wildcards of the appropriate length. + let mut fields: SmallVec<[_; 2]> = wildcard_sub_tys(); + // Fill in the fields from both ends. + let new_arity = fields.len(); + for i in 0..prefix { + fields[i] = &self.fields[i]; + } + for i in 0..suffix { + fields[new_arity - 1 - i] = &self.fields[self.fields.len() - 1 - i]; } + fields } _ => self.fields.iter().collect(), } } - /// We keep track for each pattern if it was ever useful during the analysis. This is used - /// with `redundant_spans` to report redundant subpatterns arising from or patterns. + /// We keep track for each pattern if it was ever useful during the analysis. This is used with + /// `redundant_subpatterns` to report redundant subpatterns arising from or patterns. pub(crate) fn set_useful(&self) { self.useful.set(true) } @@ -139,19 +136,19 @@ impl<'p, 'tcx> DeconstructedPat<'p, 'tcx> { } } - /// Report the spans of subpatterns that were not useful, if any. - pub(crate) fn redundant_spans(&self) -> Vec<Span> { - let mut spans = Vec::new(); - self.collect_redundant_spans(&mut spans); - spans + /// Report the subpatterns that were not useful, if any. + pub(crate) fn redundant_subpatterns(&self) -> Vec<&Self> { + let mut subpats = Vec::new(); + self.collect_redundant_subpatterns(&mut subpats); + subpats } - fn collect_redundant_spans(&self, spans: &mut Vec<Span>) { + fn collect_redundant_subpatterns<'a>(&'a self, subpats: &mut Vec<&'a Self>) { // We don't look at subpatterns if we already reported the whole pattern as redundant. if !self.is_useful() { - spans.push(self.span); + subpats.push(self); } else { for p in self.iter_fields() { - p.collect_redundant_spans(spans); + p.collect_redundant_subpatterns(subpats); } } } @@ -159,47 +156,47 @@ impl<'p, 'tcx> DeconstructedPat<'p, 'tcx> { /// This is mostly copied from the `Pat` impl. This is best effort and not good enough for a /// `Display` impl. -impl<'p, 'tcx> fmt::Debug for DeconstructedPat<'p, 'tcx> { +impl<'p, Cx: TypeCx> fmt::Debug for DeconstructedPat<'p, Cx> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - MatchCheckCtxt::debug_pat(f, self) + Cx::debug_pat(f, self) } } /// Same idea as `DeconstructedPat`, except this is a fictitious pattern built up for diagnostics /// purposes. As such they don't use interning and can be cloned. -#[derive(Debug, Clone)] -pub struct WitnessPat<'tcx> { - ctor: Constructor<'tcx>, - pub(crate) fields: Vec<WitnessPat<'tcx>>, - ty: Ty<'tcx>, +#[derive(derivative::Derivative)] +#[derivative(Debug(bound = ""), Clone(bound = ""))] +pub struct WitnessPat<Cx: TypeCx> { + ctor: Constructor<Cx>, + pub(crate) fields: Vec<WitnessPat<Cx>>, + ty: Cx::Ty, } -impl<'tcx> WitnessPat<'tcx> { - pub(crate) fn new(ctor: Constructor<'tcx>, fields: Vec<Self>, ty: Ty<'tcx>) -> Self { +impl<Cx: TypeCx> WitnessPat<Cx> { + pub(crate) fn new(ctor: Constructor<Cx>, fields: Vec<Self>, ty: Cx::Ty) -> Self { Self { ctor, fields, ty } } - pub(crate) fn wildcard(ty: Ty<'tcx>) -> Self { + pub(crate) fn wildcard(ty: Cx::Ty) -> Self { Self::new(Wildcard, Vec::new(), ty) } /// Construct a pattern that matches everything that starts with this constructor. /// For example, if `ctor` is a `Constructor::Variant` for `Option::Some`, we get the pattern /// `Some(_)`. - pub(crate) fn wild_from_ctor(pcx: &PatCtxt<'_, '_, 'tcx>, ctor: Constructor<'tcx>) -> Self { - let field_tys = - pcx.cx.ctor_wildcard_fields(&ctor, pcx.ty).iter().map(|deco_pat| deco_pat.ty()); - let fields = field_tys.map(|ty| Self::wildcard(ty)).collect(); + pub(crate) fn wild_from_ctor(pcx: &PlaceCtxt<'_, '_, Cx>, ctor: Constructor<Cx>) -> Self { + let field_tys = pcx.ctor_sub_tys(&ctor); + let fields = field_tys.iter().map(|ty| Self::wildcard(*ty)).collect(); Self::new(ctor, fields, pcx.ty) } - pub fn ctor(&self) -> &Constructor<'tcx> { + pub fn ctor(&self) -> &Constructor<Cx> { &self.ctor } - pub fn ty(&self) -> Ty<'tcx> { + pub fn ty(&self) -> Cx::Ty { self.ty } - pub fn iter_fields<'a>(&'a self) -> impl Iterator<Item = &'a WitnessPat<'tcx>> { + pub fn iter_fields<'a>(&'a self) -> impl Iterator<Item = &'a WitnessPat<Cx>> { self.fields.iter() } } diff --git a/compiler/rustc_pattern_analysis/src/cx.rs b/compiler/rustc_pattern_analysis/src/rustc.rs index 8a4f39a1f4a..a5a47724f3f 100644 --- a/compiler/rustc_pattern_analysis/src/cx.rs +++ b/compiler/rustc_pattern_analysis/src/rustc.rs @@ -1,32 +1,50 @@ use std::fmt; use std::iter::once; -use rustc_arena::TypedArena; +use rustc_arena::{DroplessArena, TypedArena}; use rustc_data_structures::captures::Captures; use rustc_hir::def_id::DefId; -use rustc_hir::{HirId, RangeEnd}; +use rustc_hir::HirId; use rustc_index::Idx; use rustc_index::IndexVec; use rustc_middle::middle::stability::EvalResult; -use rustc_middle::mir; use rustc_middle::mir::interpret::Scalar; +use rustc_middle::mir::{self, Const}; use rustc_middle::thir::{FieldPat, Pat, PatKind, PatRange, PatRangeBoundary}; use rustc_middle::ty::layout::IntegerExt; -use rustc_middle::ty::{self, Ty, TyCtxt, VariantDef}; +use rustc_middle::ty::{self, OpaqueTypeKey, Ty, TyCtxt, VariantDef}; use rustc_span::{Span, DUMMY_SP}; use rustc_target::abi::{FieldIdx, Integer, VariantIdx, FIRST_VARIANT}; use smallvec::SmallVec; use crate::constructor::{ - Constructor, ConstructorSet, IntRange, MaybeInfiniteInt, OpaqueId, Slice, SliceKind, - VariantVisibility, + IntRange, MaybeInfiniteInt, OpaqueId, RangeEnd, Slice, SliceKind, VariantVisibility, }; -use crate::pat::{DeconstructedPat, WitnessPat}; +use crate::TypeCx; -use Constructor::*; +use crate::constructor::Constructor::*; -pub struct MatchCheckCtxt<'p, 'tcx> { +// Re-export rustc-specific versions of all these types. +pub type Constructor<'p, 'tcx> = crate::constructor::Constructor<RustcMatchCheckCtxt<'p, 'tcx>>; +pub type ConstructorSet<'p, 'tcx> = + crate::constructor::ConstructorSet<RustcMatchCheckCtxt<'p, 'tcx>>; +pub type DeconstructedPat<'p, 'tcx> = + crate::pat::DeconstructedPat<'p, RustcMatchCheckCtxt<'p, 'tcx>>; +pub type MatchArm<'p, 'tcx> = crate::MatchArm<'p, RustcMatchCheckCtxt<'p, 'tcx>>; +pub type MatchCtxt<'a, 'p, 'tcx> = crate::MatchCtxt<'a, 'p, RustcMatchCheckCtxt<'p, 'tcx>>; +pub(crate) type PlaceCtxt<'a, 'p, 'tcx> = + crate::usefulness::PlaceCtxt<'a, 'p, RustcMatchCheckCtxt<'p, 'tcx>>; +pub(crate) type SplitConstructorSet<'p, 'tcx> = + crate::constructor::SplitConstructorSet<RustcMatchCheckCtxt<'p, 'tcx>>; +pub type Usefulness<'p, 'tcx> = crate::usefulness::Usefulness<'p, RustcMatchCheckCtxt<'p, 'tcx>>; +pub type UsefulnessReport<'p, 'tcx> = + crate::usefulness::UsefulnessReport<'p, RustcMatchCheckCtxt<'p, 'tcx>>; +pub type WitnessPat<'p, 'tcx> = crate::pat::WitnessPat<RustcMatchCheckCtxt<'p, 'tcx>>; + +#[derive(Clone)] +pub struct RustcMatchCheckCtxt<'p, 'tcx> { pub tcx: TyCtxt<'tcx>, + pub typeck_results: &'tcx ty::TypeckResults<'tcx>, /// The module in which the match occurs. This is necessary for /// checking inhabited-ness of types because whether a type is (visibly) /// inhabited can depend on whether it was defined in the current module or @@ -35,6 +53,7 @@ pub struct MatchCheckCtxt<'p, 'tcx> { pub module: DefId, pub param_env: ty::ParamEnv<'tcx>, pub pattern_arena: &'p TypedArena<DeconstructedPat<'p, 'tcx>>, + pub dropless_arena: &'p DroplessArena, /// Lint level at the match. pub match_lint_level: HirId, /// The span of the whole match, if applicable. @@ -48,9 +67,23 @@ pub struct MatchCheckCtxt<'p, 'tcx> { pub known_valid_scrutinee: bool, } -impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { - pub(super) fn is_uninhabited(&self, ty: Ty<'tcx>) -> bool { - !ty.is_inhabited_from(self.tcx, self.module, self.param_env) +impl<'p, 'tcx> fmt::Debug for RustcMatchCheckCtxt<'p, 'tcx> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("RustcMatchCheckCtxt").finish() + } +} + +impl<'p, 'tcx> RustcMatchCheckCtxt<'p, 'tcx> { + fn reveal_opaque(&self, key: OpaqueTypeKey<'tcx>) -> Option<Ty<'tcx>> { + self.typeck_results.concrete_opaque_types.get(&key).map(|x| x.ty) + } + pub fn is_uninhabited(&self, ty: Ty<'tcx>) -> bool { + !ty.inhabited_predicate(self.tcx).apply_revealing_opaque( + self.tcx, + self.param_env, + self.module, + &|key| self.reveal_opaque(key), + ) } /// Returns whether the given type is an enum from another crate declared `#[non_exhaustive]`. @@ -63,12 +96,33 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } } - pub(crate) fn alloc_wildcard_slice( - &self, - tys: impl IntoIterator<Item = Ty<'tcx>>, - ) -> &'p [DeconstructedPat<'p, 'tcx>] { - self.pattern_arena - .alloc_from_iter(tys.into_iter().map(|ty| DeconstructedPat::wildcard(ty, DUMMY_SP))) + /// Whether the range denotes the fictitious values before `isize::MIN` or after + /// `usize::MAX`/`isize::MAX` (see doc of [`IntRange::split`] for why these exist). + pub fn is_range_beyond_boundaries(&self, range: &IntRange, ty: Ty<'tcx>) -> bool { + ty.is_ptr_sized_integral() && { + // The two invalid ranges are `NegInfinity..isize::MIN` (represented as + // `NegInfinity..0`), and `{u,i}size::MAX+1..PosInfinity`. `hoist_pat_range_bdy` + // converts `MAX+1` to `PosInfinity`, and we couldn't have `PosInfinity` in `range.lo` + // otherwise. + let lo = self.hoist_pat_range_bdy(range.lo, ty); + matches!(lo, PatRangeBoundary::PosInfinity) + || matches!(range.hi, MaybeInfiniteInt::Finite(0)) + } + } + + /// Type inference occasionally gives us opaque types in places where corresponding patterns + /// have more specific types. To avoid inconsistencies as well as detect opaque uninhabited + /// types, we use the corresponding concrete type if possible. + fn reveal_opaque_ty(&self, ty: Ty<'tcx>) -> Ty<'tcx> { + if let ty::Alias(ty::Opaque, alias_ty) = ty.kind() { + if let Some(local_def_id) = alias_ty.def_id.as_local() { + let key = ty::OpaqueTypeKey { def_id: local_def_id, args: alias_ty.args }; + if let Some(real_ty) = self.typeck_results.concrete_opaque_types.get(&key) { + return real_ty.ty; + } + } + } + ty } // In the cases of either a `#[non_exhaustive]` field list or a non-public field, we hide @@ -100,12 +154,12 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } pub(crate) fn variant_index_for_adt( - ctor: &Constructor<'tcx>, + ctor: &Constructor<'p, 'tcx>, adt: ty::AdtDef<'tcx>, ) -> VariantIdx { match *ctor { Variant(idx) => idx, - Single => { + Struct | UnionField => { assert!(!adt.is_enum()); FIRST_VARIANT } @@ -113,37 +167,36 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } } - /// Creates a new list of wildcard fields for a given constructor. The result must have a length - /// of `ctor.arity()`. + /// Returns the types of the fields for a given constructor. The result must have a length of + /// `ctor.arity()`. #[instrument(level = "trace", skip(self))] - pub(crate) fn ctor_wildcard_fields( - &self, - ctor: &Constructor<'tcx>, - ty: Ty<'tcx>, - ) -> &'p [DeconstructedPat<'p, 'tcx>] { + pub(crate) fn ctor_sub_tys(&self, ctor: &Constructor<'p, 'tcx>, ty: Ty<'tcx>) -> &[Ty<'tcx>] { let cx = self; match ctor { - Single | Variant(_) => match ty.kind() { - ty::Tuple(fs) => cx.alloc_wildcard_slice(fs.iter()), - ty::Ref(_, rty, _) => cx.alloc_wildcard_slice(once(*rty)), + Struct | Variant(_) | UnionField => match ty.kind() { + ty::Tuple(fs) => cx.dropless_arena.alloc_from_iter(fs.iter()), ty::Adt(adt, args) => { if adt.is_box() { // The only legal patterns of type `Box` (outside `std`) are `_` and box // patterns. If we're here we can assume this is a box pattern. - cx.alloc_wildcard_slice(once(args.type_at(0))) + cx.dropless_arena.alloc_from_iter(once(args.type_at(0))) } else { let variant = - &adt.variant(MatchCheckCtxt::variant_index_for_adt(&ctor, *adt)); + &adt.variant(RustcMatchCheckCtxt::variant_index_for_adt(&ctor, *adt)); let tys = cx.list_variant_nonhidden_fields(ty, variant).map(|(_, ty)| ty); - cx.alloc_wildcard_slice(tys) + cx.dropless_arena.alloc_from_iter(tys) } } - _ => bug!("Unexpected type for `Single` constructor: {:?}", ty), + _ => bug!("Unexpected type for constructor `{ctor:?}`: {ty:?}"), + }, + Ref => match ty.kind() { + ty::Ref(_, rty, _) => cx.dropless_arena.alloc_from_iter(once(*rty)), + _ => bug!("Unexpected type for `Ref` constructor: {ty:?}"), }, Slice(slice) => match *ty.kind() { ty::Slice(ty) | ty::Array(ty, _) => { let arity = slice.arity(); - cx.alloc_wildcard_slice((0..arity).map(|_| ty)) + cx.dropless_arena.alloc_from_iter((0..arity).map(|_| ty)) } _ => bug!("bad slice pattern {:?} {:?}", ctor, ty), }, @@ -163,13 +216,11 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } } - /// The number of fields for this constructor. This must be kept in sync with - /// `Fields::wildcards`. - pub(crate) fn ctor_arity(&self, ctor: &Constructor<'tcx>, ty: Ty<'tcx>) -> usize { + /// The number of fields for this constructor. + pub(crate) fn ctor_arity(&self, ctor: &Constructor<'p, 'tcx>, ty: Ty<'tcx>) -> usize { match ctor { - Single | Variant(_) => match ty.kind() { + Struct | Variant(_) | UnionField => match ty.kind() { ty::Tuple(fs) => fs.len(), - ty::Ref(..) => 1, ty::Adt(adt, ..) => { if adt.is_box() { // The only legal patterns of type `Box` (outside `std`) are `_` and box @@ -177,12 +228,13 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { 1 } else { let variant = - &adt.variant(MatchCheckCtxt::variant_index_for_adt(&ctor, *adt)); + &adt.variant(RustcMatchCheckCtxt::variant_index_for_adt(&ctor, *adt)); self.list_variant_nonhidden_fields(ty, variant).count() } } - _ => bug!("Unexpected type for `Single` constructor: {:?}", ty), + _ => bug!("Unexpected type for constructor `{ctor:?}`: {ty:?}"), }, + Ref => 1, Slice(slice) => slice.arity(), Bool(..) | IntRange(..) @@ -202,7 +254,7 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { /// /// See [`crate::constructor`] for considerations of emptiness. #[instrument(level = "debug", skip(self), ret)] - pub fn ctors_for_ty(&self, ty: Ty<'tcx>) -> ConstructorSet { + pub fn ctors_for_ty(&self, ty: Ty<'tcx>) -> ConstructorSet<'p, 'tcx> { let cx = self; let make_uint_range = |start, end| { IntRange::from_range( @@ -275,7 +327,9 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { let is_inhabited = v .inhabited_predicate(cx.tcx, *def) .instantiate(cx.tcx, args) - .apply(cx.tcx, cx.param_env, cx.module); + .apply_revealing_opaque(cx.tcx, cx.param_env, cx.module, &|key| { + cx.reveal_opaque(key) + }); // Variants that depend on a disabled unstable feature. let is_unstable = matches!( cx.tcx.eval_stability(variant_def_id, None, DUMMY_SP, None), @@ -298,9 +352,9 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { ConstructorSet::Variants { variants, non_exhaustive: is_declared_nonexhaustive } } } - ty::Adt(..) | ty::Tuple(..) | ty::Ref(..) => { - ConstructorSet::Single { empty: cx.is_uninhabited(ty) } - } + ty::Adt(def, _) if def.is_union() => ConstructorSet::Union, + ty::Adt(..) | ty::Tuple(..) => ConstructorSet::Struct { empty: cx.is_uninhabited(ty) }, + ty::Ref(..) => ConstructorSet::Ref, ty::Never => ConstructorSet::NoConstructors, // This type is one for which we cannot list constructors, like `str` or `f64`. // FIXME(Nadrieril): which of these are actually allowed? @@ -359,15 +413,20 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { fields = &[]; } PatKind::Deref { subpattern } => { - ctor = Single; fields = singleton(self.lower_pat(subpattern)); + ctor = match pat.ty.kind() { + // This is a box pattern. + ty::Adt(adt, ..) if adt.is_box() => Struct, + ty::Ref(..) => Ref, + _ => bug!("pattern has unexpected type: pat: {:?}, ty: {:?}", pat, pat.ty), + }; } PatKind::Leaf { subpatterns } | PatKind::Variant { subpatterns, .. } => { match pat.ty.kind() { ty::Tuple(fs) => { - ctor = Single; + ctor = Struct; let mut wilds: SmallVec<[_; 2]> = - fs.iter().map(|ty| DeconstructedPat::wildcard(ty, pat.span)).collect(); + fs.iter().map(|ty| DeconstructedPat::wildcard(ty)).collect(); for pat in subpatterns { wilds[pat.field.index()] = self.lower_pat(&pat.pattern); } @@ -380,7 +439,7 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { // _)` or a box pattern. As a hack to avoid an ICE with the former, we // ignore other fields than the first one. This will trigger an error later // anyway. - // See https://github.com/rust-lang/rust/issues/82772 , + // See https://github.com/rust-lang/rust/issues/82772, // explanation: https://github.com/rust-lang/rust/pull/82789#issuecomment-796921977 // The problem is that we can't know from the type whether we'll match // normally or through box-patterns. We'll have to figure out a proper @@ -390,19 +449,20 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { let pat = if let Some(pat) = pattern { self.lower_pat(&pat.pattern) } else { - DeconstructedPat::wildcard(args.type_at(0), pat.span) + DeconstructedPat::wildcard(args.type_at(0)) }; - ctor = Single; + ctor = Struct; fields = singleton(pat); } ty::Adt(adt, _) => { ctor = match pat.kind { - PatKind::Leaf { .. } => Single, + PatKind::Leaf { .. } if adt.is_union() => UnionField, + PatKind::Leaf { .. } => Struct, PatKind::Variant { variant_index, .. } => Variant(variant_index), _ => bug!(), }; let variant = - &adt.variant(MatchCheckCtxt::variant_index_for_adt(&ctor, *adt)); + &adt.variant(RustcMatchCheckCtxt::variant_index_for_adt(&ctor, *adt)); // For each field in the variant, we store the relevant index into `self.fields` if any. let mut field_id_to_id: Vec<Option<usize>> = (0..variant.fields.len()).map(|_| None).collect(); @@ -414,7 +474,7 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { ty }); let mut wilds: SmallVec<[_; 2]> = - tys.map(|ty| DeconstructedPat::wildcard(ty, pat.span)).collect(); + tys.map(|ty| DeconstructedPat::wildcard(ty)).collect(); for pat in subpatterns { if let Some(i) = field_id_to_id[pat.field.index()] { wilds[i] = self.lower_pat(&pat.pattern); @@ -477,11 +537,11 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { // with other `Deref` patterns. This could have been done in `const_to_pat`, // but that causes issues with the rest of the matching code. // So here, the constructor for a `"foo"` pattern is `&` (represented by - // `Single`), and has one field. That field has constructor `Str(value)` and no - // fields. + // `Ref`), and has one field. That field has constructor `Str(value)` and no + // subfields. // Note: `t` is `str`, not `&str`. let subpattern = DeconstructedPat::new(Str(*value), &[], *t, pat.span); - ctor = Single; + ctor = Ref; fields = singleton(subpattern) } // All constants that can be structurally matched have already been expanded @@ -495,12 +555,16 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } PatKind::Range(patrange) => { let PatRange { lo, hi, end, .. } = patrange.as_ref(); + let end = match end { + rustc_hir::RangeEnd::Included => RangeEnd::Included, + rustc_hir::RangeEnd::Excluded => RangeEnd::Excluded, + }; let ty = pat.ty; ctor = match ty.kind() { ty::Char | ty::Int(_) | ty::Uint(_) => { let lo = cx.lower_pat_range_bdy(*lo, ty); let hi = cx.lower_pat_range_bdy(*hi, ty); - IntRange(IntRange::from_range(lo, hi, *end)) + IntRange(IntRange::from_range(lo, hi, end)) } ty::Float(fty) => { use rustc_apfloat::Float; @@ -511,13 +575,13 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { use rustc_apfloat::ieee::Single; let lo = lo.map(Single::from_bits).unwrap_or(-Single::INFINITY); let hi = hi.map(Single::from_bits).unwrap_or(Single::INFINITY); - F32Range(lo, hi, *end) + F32Range(lo, hi, end) } ty::FloatTy::F64 => { use rustc_apfloat::ieee::Double; let lo = lo.map(Double::from_bits).unwrap_or(-Double::INFINITY); let hi = hi.map(Double::from_bits).unwrap_or(Double::INFINITY); - F64Range(lo, hi, *end) + F64Range(lo, hi, end) } } } @@ -597,20 +661,6 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } } - /// Whether the range denotes the fictitious values before `isize::MIN` or after - /// `usize::MAX`/`isize::MAX` (see doc of [`IntRange::split`] for why these exist). - pub fn is_range_beyond_boundaries(&self, range: &IntRange, ty: Ty<'tcx>) -> bool { - ty.is_ptr_sized_integral() && { - // The two invalid ranges are `NegInfinity..isize::MIN` (represented as - // `NegInfinity..0`), and `{u,i}size::MAX+1..PosInfinity`. `hoist_pat_range_bdy` - // converts `MAX+1` to `PosInfinity`, and we couldn't have `PosInfinity` in `range.lo` - // otherwise. - let lo = self.hoist_pat_range_bdy(range.lo, ty); - matches!(lo, PatRangeBoundary::PosInfinity) - || matches!(range.hi, MaybeInfiniteInt::Finite(0)) - } - } - /// Convert back to a `thir::Pat` for diagnostic purposes. pub(crate) fn hoist_pat_range(&self, range: &IntRange, ty: Ty<'tcx>) -> Pat<'tcx> { use MaybeInfiniteInt::*; @@ -623,7 +673,7 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { PatKind::Constant { value } } else { // We convert to an inclusive range for diagnostics. - let mut end = RangeEnd::Included; + let mut end = rustc_hir::RangeEnd::Included; let mut lo = cx.hoist_pat_range_bdy(range.lo, ty); if matches!(lo, PatRangeBoundary::PosInfinity) { // The only reason to get `PosInfinity` here is the special case where @@ -637,7 +687,7 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } let hi = if matches!(range.hi, Finite(0)) { // The range encodes `..ty::MIN`, so we can't convert it to an inclusive range. - end = RangeEnd::Excluded; + end = rustc_hir::RangeEnd::Excluded; range.hi } else { range.hi.minus_one() @@ -650,14 +700,14 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } /// Convert back to a `thir::Pat` for diagnostic purposes. This panics for patterns that don't /// appear in diagnostics, like float ranges. - pub fn hoist_witness_pat(&self, pat: &WitnessPat<'tcx>) -> Pat<'tcx> { + pub fn hoist_witness_pat(&self, pat: &WitnessPat<'p, 'tcx>) -> Pat<'tcx> { let cx = self; let is_wildcard = |pat: &Pat<'_>| matches!(pat.kind, PatKind::Wild); let mut subpatterns = pat.iter_fields().map(|p| Box::new(cx.hoist_witness_pat(p))); let kind = match pat.ctor() { Bool(b) => PatKind::Constant { value: mir::Const::from_bool(cx.tcx, *b) }, IntRange(range) => return self.hoist_pat_range(range, pat.ty()), - Single | Variant(_) => match pat.ty().kind() { + Struct | Variant(_) | UnionField => match pat.ty().kind() { ty::Tuple(..) => PatKind::Leaf { subpatterns: subpatterns .enumerate() @@ -672,7 +722,7 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } ty::Adt(adt_def, args) => { let variant_index = - MatchCheckCtxt::variant_index_for_adt(&pat.ctor(), *adt_def); + RustcMatchCheckCtxt::variant_index_for_adt(&pat.ctor(), *adt_def); let variant = &adt_def.variant(variant_index); let subpatterns = cx .list_variant_nonhidden_fields(pat.ty(), variant) @@ -686,13 +736,13 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { PatKind::Leaf { subpatterns } } } - // Note: given the expansion of `&str` patterns done in `expand_pattern`, we should - // be careful to reconstruct the correct constant pattern here. However a string - // literal pattern will never be reported as a non-exhaustiveness witness, so we - // ignore this issue. - ty::Ref(..) => PatKind::Deref { subpattern: subpatterns.next().unwrap() }, _ => bug!("unexpected ctor for type {:?} {:?}", pat.ctor(), pat.ty()), }, + // Note: given the expansion of `&str` patterns done in `expand_pattern`, we should + // be careful to reconstruct the correct constant pattern here. However a string + // literal pattern will never be reported as a non-exhaustiveness witness, so we + // ignore this issue. + Ref => PatKind::Deref { subpattern: subpatterns.next().unwrap() }, Slice(slice) => { match slice.kind { SliceKind::FixedLen(_) => PatKind::Slice { @@ -744,7 +794,7 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { /// Best-effort `Debug` implementation. pub(crate) fn debug_pat( f: &mut fmt::Formatter<'_>, - pat: &DeconstructedPat<'p, 'tcx>, + pat: &crate::pat::DeconstructedPat<'_, Self>, ) -> fmt::Result { let mut first = true; let mut start_or_continue = |s| { @@ -758,7 +808,7 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { let mut start_or_comma = || start_or_continue(", "); match pat.ctor() { - Single | Variant(_) => match pat.ty().kind() { + Struct | Variant(_) | UnionField => match pat.ty().kind() { ty::Adt(def, _) if def.is_box() => { // Without `box_patterns`, the only legal pattern of type `Box` is `_` (outside // of `std`). So this branch is only reachable when the feature is enabled and @@ -767,13 +817,14 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { write!(f, "box {subpattern:?}") } ty::Adt(..) | ty::Tuple(..) => { - let variant = match pat.ty().kind() { - ty::Adt(adt, _) => Some( - adt.variant(MatchCheckCtxt::variant_index_for_adt(pat.ctor(), *adt)), - ), - ty::Tuple(_) => None, - _ => unreachable!(), - }; + let variant = + match pat.ty().kind() { + ty::Adt(adt, _) => Some(adt.variant( + RustcMatchCheckCtxt::variant_index_for_adt(pat.ctor(), *adt), + )), + ty::Tuple(_) => None, + _ => unreachable!(), + }; if let Some(variant) = variant { write!(f, "{}", variant.name)?; @@ -789,15 +840,15 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } write!(f, ")") } - // Note: given the expansion of `&str` patterns done in `expand_pattern`, we should - // be careful to detect strings here. However a string literal pattern will never - // be reported as a non-exhaustiveness witness, so we can ignore this issue. - ty::Ref(_, _, mutbl) => { - let subpattern = pat.iter_fields().next().unwrap(); - write!(f, "&{}{:?}", mutbl.prefix_str(), subpattern) - } _ => write!(f, "_"), }, + // Note: given the expansion of `&str` patterns done in `expand_pattern`, we should + // be careful to detect strings here. However a string literal pattern will never + // be reported as a non-exhaustiveness witness, so we can ignore this issue. + Ref => { + let subpattern = pat.iter_fields().next().unwrap(); + write!(f, "&{:?}", subpattern) + } Slice(slice) => { let mut subpatterns = pat.iter_fields(); write!(f, "[")?; @@ -838,6 +889,46 @@ impl<'p, 'tcx> MatchCheckCtxt<'p, 'tcx> { } } +impl<'p, 'tcx> TypeCx for RustcMatchCheckCtxt<'p, 'tcx> { + type Ty = Ty<'tcx>; + type VariantIdx = VariantIdx; + type StrLit = Const<'tcx>; + type ArmData = HirId; + type PatData = Span; + + fn is_exhaustive_patterns_feature_on(&self) -> bool { + self.tcx.features().exhaustive_patterns + } + + fn reveal_opaque_ty(&self, ty: Ty<'tcx>) -> Ty<'tcx> { + self.reveal_opaque_ty(ty) + } + + fn ctor_arity(&self, ctor: &crate::constructor::Constructor<Self>, ty: Self::Ty) -> usize { + self.ctor_arity(ctor, ty) + } + fn ctor_sub_tys( + &self, + ctor: &crate::constructor::Constructor<Self>, + ty: Self::Ty, + ) -> &[Self::Ty] { + self.ctor_sub_tys(ctor, ty) + } + fn ctors_for_ty(&self, ty: Self::Ty) -> crate::constructor::ConstructorSet<Self> { + self.ctors_for_ty(ty) + } + + fn debug_pat( + f: &mut fmt::Formatter<'_>, + pat: &crate::pat::DeconstructedPat<'_, Self>, + ) -> fmt::Result { + Self::debug_pat(f, pat) + } + fn bug(&self, fmt: fmt::Arguments<'_>) -> ! { + span_bug!(self.scrut_span, "{}", fmt) + } +} + /// Recursively expand this pattern into its subpatterns. Only useful for or-patterns. fn expand_or_pat<'p, 'tcx>(pat: &'p Pat<'tcx>) -> Vec<&'p Pat<'tcx>> { fn expand<'p, 'tcx>(pat: &'p Pat<'tcx>, vec: &mut Vec<&'p Pat<'tcx>>) { diff --git a/compiler/rustc_pattern_analysis/src/usefulness.rs b/compiler/rustc_pattern_analysis/src/usefulness.rs index f268a551547..b51b1a1f722 100644 --- a/compiler/rustc_pattern_analysis/src/usefulness.rs +++ b/compiler/rustc_pattern_analysis/src/usefulness.rs @@ -242,7 +242,7 @@ //! Therefore `usefulness(tp_1, tp_2, tq)` returns the single witness-tuple `[Variant2(Some(true), 0)]`. //! //! -//! Computing the set of constructors for a type is done in [`MatchCheckCtxt::ctors_for_ty`]. See +//! Computing the set of constructors for a type is done in [`TypeCx::ctors_for_ty`]. See //! the following sections for more accurate versions of the algorithm and corresponding links. //! //! @@ -300,6 +300,166 @@ //! //! //! +//! # `Missing` and relevancy +//! +//! ## Relevant values +//! +//! Take the following example: +//! +//! ```compile_fail,E0004 +//! # let foo = (true, true); +//! match foo { +//! (true, _) => 1, +//! (_, true) => 2, +//! }; +//! ``` +//! +//! Consider the value `(true, true)`: +//! - Row 2 does not distinguish `(true, true)` and `(false, true)`; +//! - `false` does not show up in the first column of the match, so without knowing anything else we +//! can deduce that `(false, true)` matches the same or fewer rows than `(true, true)`. +//! +//! Using those two facts together, we deduce that `(true, true)` will not give us more usefulness +//! information about row 2 than `(false, true)` would. We say that "`(true, true)` is made +//! irrelevant for row 2 by `(false, true)`". We will use this idea to prune the search tree. +//! +//! +//! ## Computing relevancy +//! +//! We now generalize from the above example to approximate relevancy in a simple way. Note that we +//! will only compute an approximation: we can sometimes determine when a case is irrelevant, but +//! computing this precisely is at least as hard as computing usefulness. +//! +//! Our computation of relevancy relies on the `Missing` constructor. As explained in +//! [`crate::constructor`], `Missing` represents the constructors not present in a given column. For +//! example in the following: +//! +//! ```compile_fail,E0004 +//! enum Direction { North, South, East, West } +//! # let wind = (Direction::North, 0u8); +//! match wind { +//! (Direction::North, _) => 1, +//! (_, 50..) => 2, +//! }; +//! ``` +//! +//! Here `South`, `East` and `West` are missing in the first column, and `0..50` is missing in the +//! second. Both of these sets are represented by `Constructor::Missing` in their corresponding +//! column. +//! +//! We then compute relevancy as follows: during the course of the algorithm, for a row `r`: +//! - if `r` has a wildcard in the first column; +//! - and some constructors are missing in that column; +//! - then any `c != Missing` is considered irrelevant for row `r`. +//! +//! By this we mean that continuing the algorithm by specializing with `c` is guaranteed not to +//! contribute more information about the usefulness of row `r` than what we would get by +//! specializing with `Missing`. The argument is the same as in the previous subsection. +//! +//! Once we've specialized by a constructor `c` that is irrelevant for row `r`, we're guaranteed to +//! only explore values irrelevant for `r`. If we then ever reach a point where we're only exploring +//! values that are irrelevant to all of the rows (including the virtual wildcard row used for +//! exhaustiveness), we skip that case entirely. +//! +//! +//! ## Example +//! +//! Let's go through a variation on the first example: +//! +//! ```compile_fail,E0004 +//! # let foo = (true, true, true); +//! match foo { +//! (true, _, true) => 1, +//! (_, true, _) => 2, +//! }; +//! ``` +//! +//! ```text +//! ┐ Patterns: +//! │ 1. `[(true, _, true)]` +//! │ 2. `[(_, true, _)]` +//! │ 3. `[_]` // virtual extra wildcard row +//! │ +//! │ Specialize with `(,,)`: +//! ├─┐ Patterns: +//! │ │ 1. `[true, _, true]` +//! │ │ 2. `[_, true, _]` +//! │ │ 3. `[_, _, _]` +//! │ │ +//! │ │ There are missing constructors in the first column (namely `false`), hence +//! │ │ `true` is irrelevant for rows 2 and 3. +//! │ │ +//! │ │ Specialize with `true`: +//! │ ├─┐ Patterns: +//! │ │ │ 1. `[_, true]` +//! │ │ │ 2. `[true, _]` // now exploring irrelevant cases +//! │ │ │ 3. `[_, _]` // now exploring irrelevant cases +//! │ │ │ +//! │ │ │ There are missing constructors in the first column (namely `false`), hence +//! │ │ │ `true` is irrelevant for rows 1 and 3. +//! │ │ │ +//! │ │ │ Specialize with `true`: +//! │ │ ├─┐ Patterns: +//! │ │ │ │ 1. `[true]` // now exploring irrelevant cases +//! │ │ │ │ 2. `[_]` // now exploring irrelevant cases +//! │ │ │ │ 3. `[_]` // now exploring irrelevant cases +//! │ │ │ │ +//! │ │ │ │ The current case is irrelevant for all rows: we backtrack immediately. +//! │ │ ├─┘ +//! │ │ │ +//! │ │ │ Specialize with `false`: +//! │ │ ├─┐ Patterns: +//! │ │ │ │ 1. `[true]` +//! │ │ │ │ 3. `[_]` // now exploring irrelevant cases +//! │ │ │ │ +//! │ │ │ │ Specialize with `true`: +//! │ │ │ ├─┐ Patterns: +//! │ │ │ │ │ 1. `[]` +//! │ │ │ │ │ 3. `[]` // now exploring irrelevant cases +//! │ │ │ │ │ +//! │ │ │ │ │ Row 1 is therefore useful. +//! │ │ │ ├─┘ +//! <etc...> +//! ``` +//! +//! Relevancy allowed us to skip the case `(true, true, _)` entirely. In some cases this pruning can +//! give drastic speedups. The case this was built for is the following (#118437): +//! +//! ```ignore(illustrative) +//! match foo { +//! (true, _, _, _, ..) => 1, +//! (_, true, _, _, ..) => 2, +//! (_, _, true, _, ..) => 3, +//! (_, _, _, true, ..) => 4, +//! ... +//! } +//! ``` +//! +//! Without considering relevancy, we would explore all 2^n combinations of the `true` and `Missing` +//! constructors. Relevancy tells us that e.g. `(true, true, false, false, false, ...)` is +//! irrelevant for all the rows. This allows us to skip all cases with more than one `true` +//! constructor, changing the runtime from exponential to linear. +//! +//! +//! ## Relevancy and exhaustiveness +//! +//! For exhaustiveness, we do something slightly different w.r.t relevancy: we do not report +//! witnesses of non-exhaustiveness that are irrelevant for the virtual wildcard row. For example, +//! in: +//! +//! ```ignore(illustrative) +//! match foo { +//! (true, true) => {} +//! } +//! ``` +//! +//! we only report `(false, _)` as missing. This was a deliberate choice made early in the +//! development of rust, for diagnostic and performance purposes. As showed in the previous section, +//! ignoring irrelevant cases preserves usefulness, so this choice still correctly computes whether +//! a match is exhaustive. +//! +//! +//! //! # Or-patterns //! //! What we have described so far works well if there are no or-patterns. To handle them, if the @@ -555,37 +715,46 @@ use smallvec::{smallvec, SmallVec}; use std::fmt; -use rustc_data_structures::{captures::Captures, stack::ensure_sufficient_stack}; -use rustc_middle::ty::{self, Ty}; -use rustc_span::{Span, DUMMY_SP}; - use crate::constructor::{Constructor, ConstructorSet}; -use crate::cx::MatchCheckCtxt; use crate::pat::{DeconstructedPat, WitnessPat}; -use crate::MatchArm; +use crate::{Captures, MatchArm, MatchCtxt, TypeCx, TypedArena}; use self::ValidityConstraint::*; -#[derive(Copy, Clone)] -pub(crate) struct PatCtxt<'a, 'p, 'tcx> { - pub(crate) cx: &'a MatchCheckCtxt<'p, 'tcx>, - /// Type of the current column under investigation. - pub(crate) ty: Ty<'tcx>, - /// Whether the current pattern is the whole pattern as found in a match arm, or if it's a - /// subpattern. - pub(crate) is_top_level: bool, +#[cfg(feature = "rustc")] +use rustc_data_structures::stack::ensure_sufficient_stack; +#[cfg(not(feature = "rustc"))] +pub fn ensure_sufficient_stack<R>(f: impl FnOnce() -> R) -> R { + f() } -impl<'a, 'p, 'tcx> PatCtxt<'a, 'p, 'tcx> { - /// A `PatCtxt` when code other than `is_useful` needs one. - pub(crate) fn new_dummy(cx: &'a MatchCheckCtxt<'p, 'tcx>, ty: Ty<'tcx>) -> Self { - PatCtxt { cx, ty, is_top_level: false } - } +/// Context that provides information local to a place under investigation. +#[derive(derivative::Derivative)] +#[derivative(Debug(bound = ""), Clone(bound = ""), Copy(bound = ""))] +pub(crate) struct PlaceCtxt<'a, 'p, Cx: TypeCx> { + #[derivative(Debug = "ignore")] + pub(crate) mcx: MatchCtxt<'a, 'p, Cx>, + /// Type of the place under investigation. + pub(crate) ty: Cx::Ty, + /// Whether the place is the original scrutinee place, as opposed to a subplace of it. + pub(crate) is_scrutinee: bool, } -impl<'a, 'p, 'tcx> fmt::Debug for PatCtxt<'a, 'p, 'tcx> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("PatCtxt").field("ty", &self.ty).finish() +impl<'a, 'p, Cx: TypeCx> PlaceCtxt<'a, 'p, Cx> { + /// A `PlaceCtxt` when code other than `is_useful` needs one. + #[cfg_attr(not(feature = "rustc"), allow(dead_code))] + pub(crate) fn new_dummy(mcx: MatchCtxt<'a, 'p, Cx>, ty: Cx::Ty) -> Self { + PlaceCtxt { mcx, ty, is_scrutinee: false } + } + + pub(crate) fn ctor_arity(&self, ctor: &Constructor<Cx>) -> usize { + self.mcx.tycx.ctor_arity(ctor, self.ty) + } + pub(crate) fn ctor_sub_tys(&self, ctor: &Constructor<Cx>) -> &[Cx::Ty] { + self.mcx.tycx.ctor_sub_tys(ctor, self.ty) + } + pub(crate) fn ctors_for_ty(&self) -> ConstructorSet<Cx> { + self.mcx.tycx.ctors_for_ty(self.ty) } } @@ -595,7 +764,7 @@ impl<'a, 'p, 'tcx> fmt::Debug for PatCtxt<'a, 'p, 'tcx> { /// - in the matrix, track whether a given place (aka column) is known to contain a valid value or /// not. #[derive(Debug, Copy, Clone, PartialEq, Eq)] -enum ValidityConstraint { +pub enum ValidityConstraint { ValidOnly, MaybeInvalid, /// Option for backwards compatibility: the place is not known to be valid but we allow omitting @@ -604,7 +773,7 @@ enum ValidityConstraint { } impl ValidityConstraint { - fn from_bool(is_valid_only: bool) -> Self { + pub fn from_bool(is_valid_only: bool) -> Self { if is_valid_only { ValidOnly } else { MaybeInvalid } } @@ -629,12 +798,9 @@ impl ValidityConstraint { /// /// Pending further opsem decisions, the current behavior is: validity is preserved, except /// inside `&` and union fields where validity is reset to `MaybeInvalid`. - fn specialize<'tcx>(self, pcx: &PatCtxt<'_, '_, 'tcx>, ctor: &Constructor<'tcx>) -> Self { + fn specialize<Cx: TypeCx>(self, ctor: &Constructor<Cx>) -> Self { // We preserve validity except when we go inside a reference or a union field. - if matches!(ctor, Constructor::Single) - && (matches!(pcx.ty.kind(), ty::Ref(..)) - || matches!(pcx.ty.kind(), ty::Adt(def, ..) if def.is_union())) - { + if matches!(ctor, Constructor::Ref | Constructor::UnionField) { // Validity of `x: &T` does not imply validity of `*x: T`. MaybeInvalid } else { @@ -654,15 +820,24 @@ impl fmt::Display for ValidityConstraint { } /// Represents a pattern-tuple under investigation. -#[derive(Clone)] -struct PatStack<'p, 'tcx> { +// The three lifetimes are: +// - 'a allocated by us +// - 'p coming from the input +// - Cx global compilation context +#[derive(derivative::Derivative)] +#[derivative(Clone(bound = ""))] +struct PatStack<'a, 'p, Cx: TypeCx> { // Rows of len 1 are very common, which is why `SmallVec[_; 2]` works well. - pats: SmallVec<[&'p DeconstructedPat<'p, 'tcx>; 2]>, + pats: SmallVec<[&'a DeconstructedPat<'p, Cx>; 2]>, + /// Sometimes we know that as far as this row is concerned, the current case is already handled + /// by a different, more general, case. When the case is irrelevant for all rows this allows us + /// to skip a case entirely. This is purely an optimization. See at the top for details. + relevant: bool, } -impl<'p, 'tcx> PatStack<'p, 'tcx> { - fn from_pattern(pat: &'p DeconstructedPat<'p, 'tcx>) -> Self { - PatStack { pats: smallvec![pat] } +impl<'a, 'p, Cx: TypeCx> PatStack<'a, 'p, Cx> { + fn from_pattern(pat: &'a DeconstructedPat<'p, Cx>) -> Self { + PatStack { pats: smallvec![pat], relevant: true } } fn is_empty(&self) -> bool { @@ -673,17 +848,17 @@ impl<'p, 'tcx> PatStack<'p, 'tcx> { self.pats.len() } - fn head(&self) -> &'p DeconstructedPat<'p, 'tcx> { + fn head(&self) -> &'a DeconstructedPat<'p, Cx> { self.pats[0] } - fn iter(&self) -> impl Iterator<Item = &DeconstructedPat<'p, 'tcx>> { + fn iter<'b>(&'b self) -> impl Iterator<Item = &'a DeconstructedPat<'p, Cx>> + Captures<'b> { self.pats.iter().copied() } // Recursively expand the first or-pattern into its subpatterns. Only useful if the pattern is // an or-pattern. Panics if `self` is empty. - fn expand_or_pat<'a>(&'a self) -> impl Iterator<Item = PatStack<'p, 'tcx>> + Captures<'a> { + fn expand_or_pat<'b>(&'b self) -> impl Iterator<Item = PatStack<'a, 'p, Cx>> + Captures<'b> { self.head().flatten_or_pat().into_iter().map(move |pat| { let mut new = self.clone(); new.pats[0] = pat; @@ -695,18 +870,23 @@ impl<'p, 'tcx> PatStack<'p, 'tcx> { /// Only call if `ctor.is_covered_by(self.head().ctor())` is true. fn pop_head_constructor( &self, - pcx: &PatCtxt<'_, 'p, 'tcx>, - ctor: &Constructor<'tcx>, - ) -> PatStack<'p, 'tcx> { + pcx: &PlaceCtxt<'a, 'p, Cx>, + ctor: &Constructor<Cx>, + ctor_is_relevant: bool, + ) -> PatStack<'a, 'p, Cx> { // We pop the head pattern and push the new fields extracted from the arguments of // `self.head()`. let mut new_pats = self.head().specialize(pcx, ctor); new_pats.extend_from_slice(&self.pats[1..]); - PatStack { pats: new_pats } + // `ctor` is relevant for this row if it is the actual constructor of this row, or if the + // row has a wildcard and `ctor` is relevant for wildcards. + let ctor_is_relevant = + !matches!(self.head().ctor(), Constructor::Wildcard) || ctor_is_relevant; + PatStack { pats: new_pats, relevant: self.relevant && ctor_is_relevant } } } -impl<'p, 'tcx> fmt::Debug for PatStack<'p, 'tcx> { +impl<'a, 'p, Cx: TypeCx> fmt::Debug for PatStack<'a, 'p, Cx> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { // We pretty-print similarly to the `Debug` impl of `Matrix`. write!(f, "+")?; @@ -719,9 +899,9 @@ impl<'p, 'tcx> fmt::Debug for PatStack<'p, 'tcx> { /// A row of the matrix. #[derive(Clone)] -struct MatrixRow<'p, 'tcx> { +struct MatrixRow<'a, 'p, Cx: TypeCx> { // The patterns in the row. - pats: PatStack<'p, 'tcx>, + pats: PatStack<'a, 'p, Cx>, /// Whether the original arm had a guard. This is inherited when specializing. is_under_guard: bool, /// When we specialize, we remember which row of the original matrix produced a given row of the @@ -734,7 +914,7 @@ struct MatrixRow<'p, 'tcx> { useful: bool, } -impl<'p, 'tcx> MatrixRow<'p, 'tcx> { +impl<'a, 'p, Cx: TypeCx> MatrixRow<'a, 'p, Cx> { fn is_empty(&self) -> bool { self.pats.is_empty() } @@ -743,17 +923,17 @@ impl<'p, 'tcx> MatrixRow<'p, 'tcx> { self.pats.len() } - fn head(&self) -> &'p DeconstructedPat<'p, 'tcx> { + fn head(&self) -> &'a DeconstructedPat<'p, Cx> { self.pats.head() } - fn iter(&self) -> impl Iterator<Item = &DeconstructedPat<'p, 'tcx>> { + fn iter<'b>(&'b self) -> impl Iterator<Item = &'a DeconstructedPat<'p, Cx>> + Captures<'b> { self.pats.iter() } // Recursively expand the first or-pattern into its subpatterns. Only useful if the pattern is // an or-pattern. Panics if `self` is empty. - fn expand_or_pat<'a>(&'a self) -> impl Iterator<Item = MatrixRow<'p, 'tcx>> + Captures<'a> { + fn expand_or_pat<'b>(&'b self) -> impl Iterator<Item = MatrixRow<'a, 'p, Cx>> + Captures<'b> { self.pats.expand_or_pat().map(|patstack| MatrixRow { pats: patstack, parent_row: self.parent_row, @@ -766,12 +946,13 @@ impl<'p, 'tcx> MatrixRow<'p, 'tcx> { /// Only call if `ctor.is_covered_by(self.head().ctor())` is true. fn pop_head_constructor( &self, - pcx: &PatCtxt<'_, 'p, 'tcx>, - ctor: &Constructor<'tcx>, + pcx: &PlaceCtxt<'a, 'p, Cx>, + ctor: &Constructor<Cx>, + ctor_is_relevant: bool, parent_row: usize, - ) -> MatrixRow<'p, 'tcx> { + ) -> MatrixRow<'a, 'p, Cx> { MatrixRow { - pats: self.pats.pop_head_constructor(pcx, ctor), + pats: self.pats.pop_head_constructor(pcx, ctor, ctor_is_relevant), parent_row, is_under_guard: self.is_under_guard, useful: false, @@ -779,7 +960,7 @@ impl<'p, 'tcx> MatrixRow<'p, 'tcx> { } } -impl<'p, 'tcx> fmt::Debug for MatrixRow<'p, 'tcx> { +impl<'a, 'p, Cx: TypeCx> fmt::Debug for MatrixRow<'a, 'p, Cx> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { self.pats.fmt(f) } @@ -796,22 +977,22 @@ impl<'p, 'tcx> fmt::Debug for MatrixRow<'p, 'tcx> { /// specializing `(,)` and `Some` on a pattern of type `(Option<u32>, bool)`, the first column of /// the matrix will correspond to `scrutinee.0.Some.0` and the second column to `scrutinee.1`. #[derive(Clone)] -struct Matrix<'p, 'tcx> { +struct Matrix<'a, 'p, Cx: TypeCx> { /// Vector of rows. The rows must form a rectangular 2D array. Moreover, all the patterns of /// each column must have the same type. Each column corresponds to a place within the /// scrutinee. - rows: Vec<MatrixRow<'p, 'tcx>>, + rows: Vec<MatrixRow<'a, 'p, Cx>>, /// Stores an extra fictitious row full of wildcards. Mostly used to keep track of the type of /// each column. This must obey the same invariants as the real rows. - wildcard_row: PatStack<'p, 'tcx>, + wildcard_row: PatStack<'a, 'p, Cx>, /// Track for each column/place whether it contains a known valid value. place_validity: SmallVec<[ValidityConstraint; 2]>, } -impl<'p, 'tcx> Matrix<'p, 'tcx> { +impl<'a, 'p, Cx: TypeCx> Matrix<'a, 'p, Cx> { /// Pushes a new row to the matrix. If the row starts with an or-pattern, this recursively /// expands it. Internal method, prefer [`Matrix::new`]. - fn expand_and_push(&mut self, row: MatrixRow<'p, 'tcx>) { + fn expand_and_push(&mut self, row: MatrixRow<'a, 'p, Cx>) { if !row.is_empty() && row.head().is_or_pat() { // Expand nested or-patterns. for new_row in row.expand_or_pat() { @@ -823,16 +1004,13 @@ impl<'p, 'tcx> Matrix<'p, 'tcx> { } /// Build a new matrix from an iterator of `MatchArm`s. - fn new<'a>( - cx: &MatchCheckCtxt<'p, 'tcx>, - arms: &[MatchArm<'p, 'tcx>], - scrut_ty: Ty<'tcx>, + fn new( + wildcard_arena: &'a TypedArena<DeconstructedPat<'p, Cx>>, + arms: &'a [MatchArm<'p, Cx>], + scrut_ty: Cx::Ty, scrut_validity: ValidityConstraint, - ) -> Self - where - 'p: 'a, - { - let wild_pattern = cx.pattern_arena.alloc(DeconstructedPat::wildcard(scrut_ty, DUMMY_SP)); + ) -> Self { + let wild_pattern = wildcard_arena.alloc(DeconstructedPat::wildcard(scrut_ty)); let wildcard_row = PatStack::from_pattern(wild_pattern); let mut matrix = Matrix { rows: Vec::with_capacity(arms.len()), @@ -851,58 +1029,48 @@ impl<'p, 'tcx> Matrix<'p, 'tcx> { matrix } - fn head_ty(&self) -> Option<Ty<'tcx>> { + fn head_ty(&self, mcx: MatchCtxt<'a, 'p, Cx>) -> Option<Cx::Ty> { if self.column_count() == 0 { return None; } - let mut ty = self.wildcard_row.head().ty(); - // If the type is opaque and it is revealed anywhere in the column, we take the revealed - // version. Otherwise we could encounter constructors for the revealed type and crash. - let is_opaque = |ty: Ty<'tcx>| matches!(ty.kind(), ty::Alias(ty::Opaque, ..)); - if is_opaque(ty) { - for pat in self.heads() { - let pat_ty = pat.ty(); - if !is_opaque(pat_ty) { - ty = pat_ty; - break; - } - } - } - Some(ty) + let ty = self.wildcard_row.head().ty(); + // FIXME(Nadrieril): `Cx` should only give us revealed types. + Some(mcx.tycx.reveal_opaque_ty(ty)) } fn column_count(&self) -> usize { self.wildcard_row.len() } - fn rows<'a>( - &'a self, - ) -> impl Iterator<Item = &'a MatrixRow<'p, 'tcx>> + Clone + DoubleEndedIterator + ExactSizeIterator + fn rows<'b>( + &'b self, + ) -> impl Iterator<Item = &'b MatrixRow<'a, 'p, Cx>> + Clone + DoubleEndedIterator + ExactSizeIterator { self.rows.iter() } - fn rows_mut<'a>( - &'a mut self, - ) -> impl Iterator<Item = &'a mut MatrixRow<'p, 'tcx>> + DoubleEndedIterator + ExactSizeIterator + fn rows_mut<'b>( + &'b mut self, + ) -> impl Iterator<Item = &'b mut MatrixRow<'a, 'p, Cx>> + DoubleEndedIterator + ExactSizeIterator { self.rows.iter_mut() } /// Iterate over the first pattern of each row. - fn heads<'a>( - &'a self, - ) -> impl Iterator<Item = &'p DeconstructedPat<'p, 'tcx>> + Clone + Captures<'a> { + fn heads<'b>( + &'b self, + ) -> impl Iterator<Item = &'b DeconstructedPat<'p, Cx>> + Clone + Captures<'a> { self.rows().map(|r| r.head()) } /// This computes `specialize(ctor, self)`. See top of the file for explanations. fn specialize_constructor( &self, - pcx: &PatCtxt<'_, 'p, 'tcx>, - ctor: &Constructor<'tcx>, - ) -> Matrix<'p, 'tcx> { - let wildcard_row = self.wildcard_row.pop_head_constructor(pcx, ctor); - let new_validity = self.place_validity[0].specialize(pcx, ctor); + pcx: &PlaceCtxt<'a, 'p, Cx>, + ctor: &Constructor<Cx>, + ctor_is_relevant: bool, + ) -> Matrix<'a, 'p, Cx> { + let wildcard_row = self.wildcard_row.pop_head_constructor(pcx, ctor, ctor_is_relevant); + let new_validity = self.place_validity[0].specialize(ctor); let new_place_validity = std::iter::repeat(new_validity) .take(ctor.arity(pcx)) .chain(self.place_validity[1..].iter().copied()) @@ -911,7 +1079,7 @@ impl<'p, 'tcx> Matrix<'p, 'tcx> { Matrix { rows: Vec::new(), wildcard_row, place_validity: new_place_validity }; for (i, row) in self.rows().enumerate() { if ctor.is_covered_by(pcx, row.head().ctor()) { - let new_row = row.pop_head_constructor(pcx, ctor, i); + let new_row = row.pop_head_constructor(pcx, ctor, ctor_is_relevant, i); matrix.expand_and_push(new_row); } } @@ -929,7 +1097,7 @@ impl<'p, 'tcx> Matrix<'p, 'tcx> { /// + _ + [_, _, tail @ ..] + /// | ✓ | ? | // column validity /// ``` -impl<'p, 'tcx> fmt::Debug for Matrix<'p, 'tcx> { +impl<'a, 'p, Cx: TypeCx> fmt::Debug for Matrix<'a, 'p, Cx> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "\n")?; @@ -1019,18 +1187,19 @@ impl<'p, 'tcx> fmt::Debug for Matrix<'p, 'tcx> { /// The final `Pair(Some(_), true)` is then the resulting witness. /// /// See the top of the file for more detailed explanations and examples. -#[derive(Debug, Clone)] -struct WitnessStack<'tcx>(Vec<WitnessPat<'tcx>>); +#[derive(derivative::Derivative)] +#[derivative(Debug(bound = ""), Clone(bound = ""))] +struct WitnessStack<Cx: TypeCx>(Vec<WitnessPat<Cx>>); -impl<'tcx> WitnessStack<'tcx> { +impl<Cx: TypeCx> WitnessStack<Cx> { /// Asserts that the witness contains a single pattern, and returns it. - fn single_pattern(self) -> WitnessPat<'tcx> { + fn single_pattern(self) -> WitnessPat<Cx> { assert_eq!(self.0.len(), 1); self.0.into_iter().next().unwrap() } /// Reverses specialization by the `Missing` constructor by pushing a whole new pattern. - fn push_pattern(&mut self, pat: WitnessPat<'tcx>) { + fn push_pattern(&mut self, pat: WitnessPat<Cx>) { self.0.push(pat); } @@ -1048,7 +1217,7 @@ impl<'tcx> WitnessStack<'tcx> { /// pats: [(false, "foo"), _, true] /// result: [Enum::Variant { a: (false, "foo"), b: _ }, true] /// ``` - fn apply_constructor(&mut self, pcx: &PatCtxt<'_, '_, 'tcx>, ctor: &Constructor<'tcx>) { + fn apply_constructor(&mut self, pcx: &PlaceCtxt<'_, '_, Cx>, ctor: &Constructor<Cx>) { let len = self.0.len(); let arity = ctor.arity(pcx); let fields = self.0.drain((len - arity)..).rev().collect(); @@ -1066,10 +1235,11 @@ impl<'tcx> WitnessStack<'tcx> { /// /// Just as the `Matrix` starts with a single column, by the end of the algorithm, this has a single /// column, which contains the patterns that are missing for the match to be exhaustive. -#[derive(Debug, Clone)] -struct WitnessMatrix<'tcx>(Vec<WitnessStack<'tcx>>); +#[derive(derivative::Derivative)] +#[derivative(Debug(bound = ""), Clone(bound = ""))] +struct WitnessMatrix<Cx: TypeCx>(Vec<WitnessStack<Cx>>); -impl<'tcx> WitnessMatrix<'tcx> { +impl<Cx: TypeCx> WitnessMatrix<Cx> { /// New matrix with no witnesses. fn empty() -> Self { WitnessMatrix(vec![]) @@ -1084,12 +1254,12 @@ impl<'tcx> WitnessMatrix<'tcx> { self.0.is_empty() } /// Asserts that there is a single column and returns the patterns in it. - fn single_column(self) -> Vec<WitnessPat<'tcx>> { + fn single_column(self) -> Vec<WitnessPat<Cx>> { self.0.into_iter().map(|w| w.single_pattern()).collect() } /// Reverses specialization by the `Missing` constructor by pushing a whole new pattern. - fn push_pattern(&mut self, pat: WitnessPat<'tcx>) { + fn push_pattern(&mut self, pat: WitnessPat<Cx>) { for witness in self.0.iter_mut() { witness.push_pattern(pat.clone()) } @@ -1098,9 +1268,9 @@ impl<'tcx> WitnessMatrix<'tcx> { /// Reverses specialization by `ctor`. See the section on `unspecialize` at the top of the file. fn apply_constructor( &mut self, - pcx: &PatCtxt<'_, '_, 'tcx>, - missing_ctors: &[Constructor<'tcx>], - ctor: &Constructor<'tcx>, + pcx: &PlaceCtxt<'_, '_, Cx>, + missing_ctors: &[Constructor<Cx>], + ctor: &Constructor<Cx>, report_individual_missing_ctors: bool, ) { if self.is_empty() { @@ -1109,7 +1279,10 @@ impl<'tcx> WitnessMatrix<'tcx> { if matches!(ctor, Constructor::Missing) { // We got the special `Missing` constructor that stands for the constructors not present // in the match. - if !report_individual_missing_ctors { + if missing_ctors.is_empty() { + // Nothing to report. + *self = Self::empty(); + } else if !report_individual_missing_ctors { // Report `_` as missing. let pat = WitnessPat::wild_from_ctor(pcx, Constructor::Wildcard); self.push_pattern(pat); @@ -1160,15 +1333,22 @@ impl<'tcx> WitnessMatrix<'tcx> { /// - unspecialization, where we lift the results from the previous step into results for this step /// (using `apply_constructor` and by updating `row.useful` for each parent row). /// This is all explained at the top of the file. -#[instrument(level = "debug", skip(cx, is_top_level), ret)] -fn compute_exhaustiveness_and_usefulness<'p, 'tcx>( - cx: &MatchCheckCtxt<'p, 'tcx>, - matrix: &mut Matrix<'p, 'tcx>, +#[instrument(level = "debug", skip(mcx, is_top_level), ret)] +fn compute_exhaustiveness_and_usefulness<'a, 'p, Cx: TypeCx>( + mcx: MatchCtxt<'a, 'p, Cx>, + matrix: &mut Matrix<'a, 'p, Cx>, is_top_level: bool, -) -> WitnessMatrix<'tcx> { +) -> WitnessMatrix<Cx> { debug_assert!(matrix.rows().all(|r| r.len() == matrix.column_count())); - let Some(ty) = matrix.head_ty() else { + if !matrix.wildcard_row.relevant && matrix.rows().all(|r| !r.pats.relevant) { + // Here we know that nothing will contribute further to exhaustiveness or usefulness. This + // is purely an optimization: skipping this check doesn't affect correctness. See the top of + // the file for details. + return WitnessMatrix::empty(); + } + + let Some(ty) = matrix.head_ty(mcx) else { // The base case: there are no columns in the matrix. We are morally pattern-matching on (). // A row is useful iff it has no (unguarded) rows above it. for row in matrix.rows_mut() { @@ -1180,12 +1360,18 @@ fn compute_exhaustiveness_and_usefulness<'p, 'tcx>( return WitnessMatrix::empty(); } } - // No (unguarded) rows, so the match is not exhaustive. We return a new witness. - return WitnessMatrix::unit_witness(); + // No (unguarded) rows, so the match is not exhaustive. We return a new witness unless + // irrelevant. + return if matrix.wildcard_row.relevant { + WitnessMatrix::unit_witness() + } else { + // We choose to not report anything here; see at the top for details. + WitnessMatrix::empty() + }; }; debug!("ty: {ty:?}"); - let pcx = &PatCtxt { cx, ty, is_top_level }; + let pcx = &PlaceCtxt { mcx, ty, is_scrutinee: is_top_level }; // Whether the place/column we are inspecting is known to contain valid data. let place_validity = matrix.place_validity[0]; @@ -1194,7 +1380,7 @@ fn compute_exhaustiveness_and_usefulness<'p, 'tcx>( // Analyze the constructors present in this column. let ctors = matrix.heads().map(|p| p.ctor()); - let ctors_for_ty = &cx.ctors_for_ty(ty); + let ctors_for_ty = pcx.ctors_for_ty(); let is_integers = matches!(ctors_for_ty, ConstructorSet::Integers { .. }); // For diagnostics. let split_set = ctors_for_ty.split(pcx, ctors); let all_missing = split_set.present.is_empty(); @@ -1224,32 +1410,21 @@ fn compute_exhaustiveness_and_usefulness<'p, 'tcx>( let mut ret = WitnessMatrix::empty(); for ctor in split_ctors { - debug!("specialize({:?})", ctor); // Dig into rows that match `ctor`. - let mut spec_matrix = matrix.specialize_constructor(pcx, &ctor); + debug!("specialize({:?})", ctor); + // `ctor` is *irrelevant* if there's another constructor in `split_ctors` that matches + // strictly fewer rows. In that case we can sometimes skip it. See the top of the file for + // details. + let ctor_is_relevant = matches!(ctor, Constructor::Missing) || missing_ctors.is_empty(); + let mut spec_matrix = matrix.specialize_constructor(pcx, &ctor, ctor_is_relevant); let mut witnesses = ensure_sufficient_stack(|| { - compute_exhaustiveness_and_usefulness(cx, &mut spec_matrix, false) + compute_exhaustiveness_and_usefulness(mcx, &mut spec_matrix, false) }); - let counts_for_exhaustiveness = match ctor { - Constructor::Missing => !missing_ctors.is_empty(), - // If there are missing constructors we'll report those instead. Since `Missing` matches - // only the wildcard rows, it matches fewer rows than this constructor, and is therefore - // guaranteed to result in the same or more witnesses. So skipping this does not - // jeopardize correctness. - _ => missing_ctors.is_empty(), - }; - if counts_for_exhaustiveness { - // Transform witnesses for `spec_matrix` into witnesses for `matrix`. - witnesses.apply_constructor( - pcx, - &missing_ctors, - &ctor, - report_individual_missing_ctors, - ); - // Accumulate the found witnesses. - ret.extend(witnesses); - } + // Transform witnesses for `spec_matrix` into witnesses for `matrix`. + witnesses.apply_constructor(pcx, &missing_ctors, &ctor, report_individual_missing_ctors); + // Accumulate the found witnesses. + ret.extend(witnesses); // A parent row is useful if any of its children is. for child_row in spec_matrix.rows() { @@ -1270,34 +1445,34 @@ fn compute_exhaustiveness_and_usefulness<'p, 'tcx>( /// Indicates whether or not a given arm is useful. #[derive(Clone, Debug)] -pub enum Usefulness { +pub enum Usefulness<'p, Cx: TypeCx> { /// The arm is useful. This additionally carries a set of or-pattern branches that have been /// found to be redundant despite the overall arm being useful. Used only in the presence of /// or-patterns, otherwise it stays empty. - Useful(Vec<Span>), + Useful(Vec<&'p DeconstructedPat<'p, Cx>>), /// The arm is redundant and can be removed without changing the behavior of the match /// expression. Redundant, } /// The output of checking a match for exhaustiveness and arm usefulness. -pub struct UsefulnessReport<'p, 'tcx> { +pub struct UsefulnessReport<'p, Cx: TypeCx> { /// For each arm of the input, whether that arm is useful after the arms above it. - pub arm_usefulness: Vec<(MatchArm<'p, 'tcx>, Usefulness)>, + pub arm_usefulness: Vec<(MatchArm<'p, Cx>, Usefulness<'p, Cx>)>, /// If the match is exhaustive, this is empty. If not, this contains witnesses for the lack of /// exhaustiveness. - pub non_exhaustiveness_witnesses: Vec<WitnessPat<'tcx>>, + pub non_exhaustiveness_witnesses: Vec<WitnessPat<Cx>>, } /// Computes whether a match is exhaustive and which of its arms are useful. #[instrument(skip(cx, arms), level = "debug")] -pub(crate) fn compute_match_usefulness<'p, 'tcx>( - cx: &MatchCheckCtxt<'p, 'tcx>, - arms: &[MatchArm<'p, 'tcx>], - scrut_ty: Ty<'tcx>, -) -> UsefulnessReport<'p, 'tcx> { - let scrut_validity = ValidityConstraint::from_bool(cx.known_valid_scrutinee); - let mut matrix = Matrix::new(cx, arms, scrut_ty, scrut_validity); +pub fn compute_match_usefulness<'p, Cx: TypeCx>( + cx: MatchCtxt<'_, 'p, Cx>, + arms: &[MatchArm<'p, Cx>], + scrut_ty: Cx::Ty, + scrut_validity: ValidityConstraint, +) -> UsefulnessReport<'p, Cx> { + let mut matrix = Matrix::new(cx.wildcard_arena, arms, scrut_ty, scrut_validity); let non_exhaustiveness_witnesses = compute_exhaustiveness_and_usefulness(cx, &mut matrix, true); let non_exhaustiveness_witnesses: Vec<_> = non_exhaustiveness_witnesses.single_column(); @@ -1308,7 +1483,7 @@ pub(crate) fn compute_match_usefulness<'p, 'tcx>( debug!(?arm); // We warn when a pattern is not useful. let usefulness = if arm.pat.is_useful() { - Usefulness::Useful(arm.pat.redundant_spans()) + Usefulness::Useful(arm.pat.redundant_subpatterns()) } else { Usefulness::Redundant }; diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index 6a8e23d9a8f..be9c6b72583 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -23,12 +23,11 @@ use rustc_hir as hir; use rustc_hir::def::{DefKind, Res}; use rustc_hir::def_id::{DefId, LocalDefId, LocalModDefId, CRATE_DEF_ID}; use rustc_hir::intravisit::{self, Visitor}; -use rustc_hir::{AssocItemKind, ForeignItemKind, ItemId, Node, PatKind}; +use rustc_hir::{AssocItemKind, ForeignItemKind, ItemId, PatKind}; use rustc_middle::bug; use rustc_middle::hir::nested_filter; use rustc_middle::middle::privacy::{EffectiveVisibilities, EffectiveVisibility, Level}; use rustc_middle::query::Providers; -use rustc_middle::span_bug; use rustc_middle::ty::GenericArgs; use rustc_middle::ty::{self, Const, GenericParamDefKind}; use rustc_middle::ty::{TraitRef, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor}; @@ -1766,7 +1765,6 @@ impl<'tcx> PrivateItemsInPublicInterfacesChecker<'tcx, '_> { pub fn provide(providers: &mut Providers) { *providers = Providers { - visibility, effective_visibilities, check_private_in_public, check_mod_privacy, @@ -1774,56 +1772,6 @@ pub fn provide(providers: &mut Providers) { }; } -fn visibility(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Visibility<DefId> { - local_visibility(tcx, def_id).to_def_id() -} - -fn local_visibility(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Visibility { - match tcx.resolutions(()).visibilities.get(&def_id) { - Some(vis) => *vis, - None => { - let hir_id = tcx.local_def_id_to_hir_id(def_id); - match tcx.hir_node(hir_id) { - // Unique types created for closures participate in type privacy checking. - // They have visibilities inherited from the module they are defined in. - Node::Expr(hir::Expr { kind: hir::ExprKind::Closure{..}, .. }) - // - AST lowering creates dummy `use` items which don't - // get their entries in the resolver's visibility table. - // - AST lowering also creates opaque type items with inherited visibilities. - // Visibility on them should have no effect, but to avoid the visibility - // query failing on some items, we provide it for opaque types as well. - | Node::Item(hir::Item { - kind: hir::ItemKind::Use(_, hir::UseKind::ListStem) - | hir::ItemKind::OpaqueTy(..), - .. - }) => ty::Visibility::Restricted(tcx.parent_module(hir_id).to_local_def_id()), - // Visibilities of trait impl items are inherited from their traits - // and are not filled in resolve. - Node::ImplItem(impl_item) => { - match tcx.hir_node_by_def_id(tcx.hir().get_parent_item(hir_id).def_id) { - Node::Item(hir::Item { - kind: hir::ItemKind::Impl(hir::Impl { of_trait: Some(tr), .. }), - .. - }) => tr.path.res.opt_def_id().map_or_else( - || { - tcx.sess.span_delayed_bug(tr.path.span, "trait without a def-id"); - ty::Visibility::Public - }, - |def_id| tcx.visibility(def_id).expect_local(), - ), - _ => span_bug!(impl_item.span, "the parent is not a trait impl"), - } - } - _ => span_bug!( - tcx.def_span(def_id), - "visibility table unexpectedly missing a def-id: {:?}", - def_id, - ), - } - } - } -} - fn check_mod_privacy(tcx: TyCtxt<'_>, module_def_id: LocalModDefId) { // Check privacy of names not checked in previous compilation stages. let mut visitor = NamePrivacyVisitor { diff --git a/compiler/rustc_query_system/src/dep_graph/graph.rs b/compiler/rustc_query_system/src/dep_graph/graph.rs index 3b8ccb67bbe..3556a5ec1d1 100644 --- a/compiler/rustc_query_system/src/dep_graph/graph.rs +++ b/compiler/rustc_query_system/src/dep_graph/graph.rs @@ -924,10 +924,10 @@ impl<D: Deps> DepGraphData<D> { // Promote the previous diagnostics to the current session. qcx.store_side_effects(dep_node_index, side_effects.clone()); - let handle = qcx.dep_context().sess().diagnostic(); + let dcx = qcx.dep_context().sess().dcx(); for diagnostic in side_effects.diagnostics { - handle.emit_diagnostic(diagnostic); + dcx.emit_diagnostic(diagnostic); } } } diff --git a/compiler/rustc_query_system/src/ich/impls_syntax.rs b/compiler/rustc_query_system/src/ich/impls_syntax.rs index f2387017c82..d170cd36ca6 100644 --- a/compiler/rustc_query_system/src/ich/impls_syntax.rs +++ b/compiler/rustc_query_system/src/ich/impls_syntax.rs @@ -60,8 +60,8 @@ impl<'ctx> rustc_ast::HashStableContext for StableHashingContext<'ctx> { impl<'a> HashStable<StableHashingContext<'a>> for SourceFile { fn hash_stable(&self, hcx: &mut StableHashingContext<'a>, hasher: &mut StableHasher) { let SourceFile { - name: _, // We hash the smaller name_hash instead of this - name_hash, + name: _, // We hash the smaller stable_id instead of this + stable_id, cnum, // Do not hash the source as it is not encoded src: _, @@ -75,7 +75,7 @@ impl<'a> HashStable<StableHashingContext<'a>> for SourceFile { ref normalized_pos, } = *self; - name_hash.hash_stable(hcx, hasher); + stable_id.hash_stable(hcx, hasher); src_hash.hash_stable(hcx, hasher); diff --git a/compiler/rustc_query_system/src/query/job.rs b/compiler/rustc_query_system/src/query/job.rs index c431e966e44..982b9ee94da 100644 --- a/compiler/rustc_query_system/src/query/job.rs +++ b/compiler/rustc_query_system/src/query/job.rs @@ -4,9 +4,7 @@ use crate::query::plumbing::CycleError; use crate::query::DepKind; use crate::query::{QueryContext, QueryStackFrame}; use rustc_data_structures::fx::FxHashMap; -use rustc_errors::{ - Diagnostic, DiagnosticBuilder, ErrorGuaranteed, Handler, IntoDiagnostic, Level, -}; +use rustc_errors::{DiagCtxt, Diagnostic, DiagnosticBuilder, Level}; use rustc_hir::def::DefKind; use rustc_session::Session; use rustc_span::Span; @@ -561,7 +559,7 @@ pub fn deadlock(query_map: QueryMap, registry: &rayon_core::Registry) { pub(crate) fn report_cycle<'a>( sess: &'a Session, CycleError { usage, cycle: stack }: &CycleError, -) -> DiagnosticBuilder<'a, ErrorGuaranteed> { +) -> DiagnosticBuilder<'a> { assert!(!stack.is_empty()); let span = stack[0].query.default_span(stack[1 % stack.len()].span); @@ -604,18 +602,18 @@ pub(crate) fn report_cycle<'a>( note_span: (), }; - cycle_diag.into_diagnostic(sess.diagnostic()) + sess.dcx().create_err(cycle_diag) } pub fn print_query_stack<Qcx: QueryContext>( qcx: Qcx, mut current_query: Option<QueryJobId>, - handler: &Handler, + dcx: &DiagCtxt, num_frames: Option<usize>, mut file: Option<std::fs::File>, ) -> usize { // Be careful relying on global state here: this code is called from - // a panic hook, which means that the global `Handler` may be in a weird + // a panic hook, which means that the global `DiagCtxt` may be in a weird // state if it was responsible for triggering the panic. let mut count_printed = 0; let mut count_total = 0; @@ -638,7 +636,7 @@ pub fn print_query_stack<Qcx: QueryContext>( ), ); diag.span = query_info.job.span.into(); - handler.force_print_diagnostic(diag); + dcx.force_print_diagnostic(diag); count_printed += 1; } diff --git a/compiler/rustc_query_system/src/query/plumbing.rs b/compiler/rustc_query_system/src/query/plumbing.rs index 41638b38c74..3e29574c871 100644 --- a/compiler/rustc_query_system/src/query/plumbing.rs +++ b/compiler/rustc_query_system/src/query/plumbing.rs @@ -19,7 +19,7 @@ use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_data_structures::sync::Lock; #[cfg(parallel_compiler)] use rustc_data_structures::{outline, sync}; -use rustc_errors::{DiagnosticBuilder, ErrorGuaranteed, FatalError, StashKey}; +use rustc_errors::{DiagnosticBuilder, FatalError, StashKey}; use rustc_span::{Span, DUMMY_SP}; use std::cell::Cell; use std::collections::hash_map::Entry; @@ -112,7 +112,7 @@ fn handle_cycle_error<Q, Qcx>( query: Q, qcx: Qcx, cycle_error: &CycleError, - mut error: DiagnosticBuilder<'_, ErrorGuaranteed>, + mut error: DiagnosticBuilder<'_>, ) -> Q::Value where Q: QueryConfig<Qcx>, diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index 213b320ed1a..98a9d0ba4c2 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -236,7 +236,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { // (i.e. variants, fields, and trait items) inherits from the visibility // of the enum or trait. ModuleKind::Def(DefKind::Enum | DefKind::Trait, def_id, _) => { - self.r.visibilities[&def_id.expect_local()] + self.r.tcx.visibility(def_id).expect_local() } // Otherwise, the visibility is restricted to the nearest parent `mod` item. _ => ty::Visibility::Restricted( @@ -394,6 +394,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { id: NodeId, parent_prefix: &[Segment], nested: bool, + list_stem: bool, // The whole `use` item item: &Item, vis: ty::Visibility, @@ -404,6 +405,12 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { parent_prefix, use_tree, nested ); + // Top level use tree reuses the item's id and list stems reuse their parent + // use tree's ids, so in both cases their visibilities are already filled. + if nested && !list_stem { + self.r.feed_visibility(self.r.local_def_id(id), vis); + } + let mut prefix_iter = parent_prefix .iter() .cloned() @@ -442,8 +449,6 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { let mut source = module_path.pop().unwrap(); let mut type_ns_only = false; - self.r.visibilities.insert(self.r.local_def_id(id), vis); - if nested { // Correctly handle `self` if source.ident.name == kw::SelfLower { @@ -557,7 +562,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { max_vis: Cell::new(None), id, }; - self.r.visibilities.insert(self.r.local_def_id(id), vis); + self.add_import(prefix, kind, use_tree.span, item, root_span, item.id, vis); } ast::UseTreeKind::Nested(ref items) => { @@ -590,7 +595,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { for &(ref tree, id) in items { self.build_reduced_graph_for_use_tree( // This particular use tree - tree, id, &prefix, true, // The whole `use` item + tree, id, &prefix, true, false, // The whole `use` item item, vis, root_span, ); } @@ -611,6 +616,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { id, &prefix, true, + true, // The whole `use` item item, ty::Visibility::Restricted( @@ -636,7 +642,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { let def_kind = self.r.tcx.def_kind(def_id); let res = Res::Def(def_kind, def_id); - self.r.visibilities.insert(local_def_id, vis); + self.r.feed_visibility(local_def_id, vis); match item.kind { ItemKind::Use(ref use_tree) => { @@ -646,6 +652,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { item.id, &[], false, + false, // The whole `use` item item, vis, @@ -753,7 +760,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { let ctor_def_id = self.r.local_def_id(ctor_node_id); let ctor_res = self.res(ctor_def_id); self.r.define(parent, ident, ValueNS, (ctor_res, ctor_vis, sp, expansion)); - self.r.visibilities.insert(ctor_def_id, ctor_vis); + self.r.feed_visibility(ctor_def_id, ctor_vis); // We need the field visibility spans also for the constructor for E0603. self.insert_field_visibilities_local(ctor_def_id.to_def_id(), vdata); @@ -897,7 +904,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { let expansion = self.parent_scope.expansion; let vis = self.resolve_visibility(&item.vis); self.r.define(parent, item.ident, ns, (self.res(def_id), vis, item.span, expansion)); - self.r.visibilities.insert(local_def_id, vis); + self.r.feed_visibility(local_def_id, vis); } fn build_reduced_graph_for_block(&mut self, block: &Block) { @@ -1228,7 +1235,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { self.r.check_reserved_macro_name(ident, res); self.insert_unused_macro(ident, def_id, item.id); } - self.r.visibilities.insert(def_id, vis); + self.r.feed_visibility(def_id, vis); let scope = self.r.arenas.alloc_macro_rules_scope(MacroRulesScope::Binding( self.r.arenas.alloc_macro_rules_binding(MacroRulesBinding { parent_macro_rules_scope: parent_scope.macro_rules, @@ -1252,7 +1259,7 @@ impl<'a, 'b, 'tcx> BuildReducedGraphVisitor<'a, 'b, 'tcx> { self.insert_unused_macro(ident, def_id, item.id); } self.r.define(module, ident, MacroNS, (res, vis, span, expansion)); - self.r.visibilities.insert(def_id, vis); + self.r.feed_visibility(def_id, vis); self.parent_scope.macro_rules } } @@ -1354,7 +1361,7 @@ impl<'a, 'b, 'tcx> Visitor<'b> for BuildReducedGraphVisitor<'a, 'b, 'tcx> { // Trait impl item visibility is inherited from its trait when not specified // explicitly. In that case we cannot determine it here in early resolve, // so we leave a hole in the visibility table to be filled later. - self.r.visibilities.insert(local_def_id, vis); + self.r.feed_visibility(local_def_id, vis); } if ctxt == AssocCtxt::Trait { @@ -1432,7 +1439,7 @@ impl<'a, 'b, 'tcx> Visitor<'b> for BuildReducedGraphVisitor<'a, 'b, 'tcx> { self.visit_invoc(sf.id); } else { let vis = self.resolve_visibility(&sf.vis); - self.r.visibilities.insert(self.r.local_def_id(sf.id), vis); + self.r.feed_visibility(self.r.local_def_id(sf.id), vis); visit::walk_field_def(self, sf); } } @@ -1453,7 +1460,7 @@ impl<'a, 'b, 'tcx> Visitor<'b> for BuildReducedGraphVisitor<'a, 'b, 'tcx> { let def_id = self.r.local_def_id(variant.id); let vis = self.resolve_visibility(&variant.vis); self.r.define(parent, ident, TypeNS, (self.res(def_id), vis, variant.span, expn_id)); - self.r.visibilities.insert(def_id, vis); + self.r.feed_visibility(def_id, vis); // If the variant is marked as non_exhaustive then lower the visibility to within the crate. let ctor_vis = @@ -1468,7 +1475,7 @@ impl<'a, 'b, 'tcx> Visitor<'b> for BuildReducedGraphVisitor<'a, 'b, 'tcx> { let ctor_def_id = self.r.local_def_id(ctor_node_id); let ctor_res = self.res(ctor_def_id); self.r.define(parent, ident, ValueNS, (ctor_res, ctor_vis, variant.span, expn_id)); - self.r.visibilities.insert(ctor_def_id, ctor_vis); + self.r.feed_visibility(ctor_def_id, ctor_vis); } // Record field names for error reporting. diff --git a/compiler/rustc_resolve/src/diagnostics.rs b/compiler/rustc_resolve/src/diagnostics.rs index 542aff69e34..af0c5b56d73 100644 --- a/compiler/rustc_resolve/src/diagnostics.rs +++ b/compiler/rustc_resolve/src/diagnostics.rs @@ -551,7 +551,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { &mut self, span: Span, resolution_error: ResolutionError<'a>, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'_> { match resolution_error { ResolutionError::GenericParamsFromOuterItem(outer_res, has_generic_params) => { use errs::GenericParamsFromOuterItemLabel as Label; diff --git a/compiler/rustc_resolve/src/effective_visibilities.rs b/compiler/rustc_resolve/src/effective_visibilities.rs index a71c50dd82f..50352169221 100644 --- a/compiler/rustc_resolve/src/effective_visibilities.rs +++ b/compiler/rustc_resolve/src/effective_visibilities.rs @@ -186,7 +186,7 @@ impl<'r, 'a, 'tcx> EffectiveVisibilitiesVisitor<'r, 'a, 'tcx> { ) -> Option<Option<Visibility>> { match parent_id { ParentId::Def(def_id) => (nominal_vis != self.current_private_vis - && self.r.visibilities[&def_id] != self.current_private_vis) + && self.r.tcx.local_visibility(def_id) != self.current_private_vis) .then_some(Some(self.current_private_vis)), ParentId::Import(_) => Some(None), } @@ -222,7 +222,7 @@ impl<'r, 'a, 'tcx> EffectiveVisibilitiesVisitor<'r, 'a, 'tcx> { } fn update_field(&mut self, def_id: LocalDefId, parent_id: LocalDefId) { - self.update_def(def_id, self.r.visibilities[&def_id], ParentId::Def(parent_id)); + self.update_def(def_id, self.r.tcx.local_visibility(def_id), ParentId::Def(parent_id)); } } diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index 9c96e9a9bd7..4bef67be3ef 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -3078,17 +3078,25 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> { binding = self.r.resolution(module, key).try_borrow().ok().and_then(|r| r.binding); debug!(?binding); } + + let feed_visibility = |this: &mut Self, def_id| { + let vis = this.r.tcx.visibility(def_id).expect_local(); + this.r.feed_visibility(this.r.local_def_id(id), vis); + }; + let Some(binding) = binding else { // We could not find the method: report an error. let candidate = self.find_similarly_named_assoc_item(ident.name, kind); let path = &self.current_trait_ref.as_ref().unwrap().1.path; let path_names = path_names_to_string(path); self.report_error(span, err(ident, path_names, candidate)); + feed_visibility(self, module.def_id()); return; }; let res = binding.res(); let Res::Def(def_kind, id_in_trait) = res else { bug!() }; + feed_visibility(self, id_in_trait); match seen_trait_items.entry(id_in_trait) { Entry::Occupied(entry) => { @@ -3685,7 +3693,7 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> { let mut parent_err = this.r.into_struct_error(parent_err.span, parent_err.node); // overwrite all properties with the parent's error message - err.message = take(&mut parent_err.message); + err.messages = take(&mut parent_err.messages); err.code = take(&mut parent_err.code); swap(&mut err.span, &mut parent_err.span); err.children = take(&mut parent_err.children); @@ -4250,11 +4258,11 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> { }); } - ExprKind::ForLoop(ref pat, ref iter_expr, ref block, label) => { - self.visit_expr(iter_expr); + ExprKind::ForLoop { ref pat, ref iter, ref body, label, kind: _ } => { + self.visit_expr(iter); self.with_rib(ValueNS, RibKind::Normal, |this| { this.resolve_pattern_top(pat, PatternSource::For); - this.resolve_labeled_block(label, expr.id, block); + this.resolve_labeled_block(label, expr.id, body); }); } diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index d767ed74139..e410e76abf4 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -424,7 +424,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { span: Span, source: PathSource<'_>, res: Option<Res>, - ) -> (DiagnosticBuilder<'tcx, ErrorGuaranteed>, Vec<ImportSuggestion>) { + ) -> (DiagnosticBuilder<'tcx>, Vec<ImportSuggestion>) { debug!(?res, ?source); let base_error = self.make_base_error(path, span, source, res); @@ -520,7 +520,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { continue; }; for bound in bounds { - let ast::GenericBound::Trait(trait_ref, ast::TraitBoundModifier::None) = bound + let ast::GenericBound::Trait(trait_ref, ast::TraitBoundModifiers::NONE) = bound else { continue; }; @@ -1242,7 +1242,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { } if let ( [ast::PathSegment { args: None, .. }], - [ast::GenericBound::Trait(poly_trait_ref, ast::TraitBoundModifier::None)], + [ast::GenericBound::Trait(poly_trait_ref, ast::TraitBoundModifiers::NONE)], ) = (&type_param_path.segments[..], &bounds[..]) { if let [ast::PathSegment { ident, args: None, .. }] = @@ -1409,7 +1409,7 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> { | ExprKind::Unary(..) | ExprKind::If(..) | ExprKind::While(..) - | ExprKind::ForLoop(..) + | ExprKind::ForLoop { .. } | ExprKind::Match(..), .. }), @@ -3276,7 +3276,7 @@ fn mk_where_bound_predicate( }, span: DUMMY_SP, }, - ast::TraitBoundModifier::None, + ast::TraitBoundModifiers::NONE, )], }; diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs index 70e0eb12c01..a14f3d494fb 100644 --- a/compiler/rustc_resolve/src/lib.rs +++ b/compiler/rustc_resolve/src/lib.rs @@ -37,7 +37,7 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet}; use rustc_data_structures::intern::Interned; use rustc_data_structures::steal::Steal; use rustc_data_structures::sync::{FreezeReadGuard, Lrc}; -use rustc_errors::{Applicability, DiagnosticBuilder, ErrorGuaranteed}; +use rustc_errors::{Applicability, DiagnosticBuilder}; use rustc_expand::base::{DeriveResolutions, SyntaxExtension, SyntaxExtensionKind}; use rustc_feature::BUILTIN_ATTRIBUTES; use rustc_hir::def::Namespace::{self, *}; @@ -704,7 +704,7 @@ struct PrivacyError<'a> { #[derive(Debug)] struct UseError<'a> { - err: DiagnosticBuilder<'a, ErrorGuaranteed>, + err: DiagnosticBuilder<'a>, /// Candidates which user could `use` to access the missing type. candidates: Vec<ImportSuggestion>, /// The `DefId` of the module to place the use-statements in. @@ -1007,8 +1007,7 @@ pub struct Resolver<'a, 'tcx> { /// Maps glob imports to the names of items actually imported. glob_map: FxHashMap<LocalDefId, FxHashSet<Symbol>>, - /// Visibilities in "lowered" form, for all entities that have them. - visibilities: FxHashMap<LocalDefId, ty::Visibility>, + visibilities_for_hashing: Vec<(LocalDefId, ty::Visibility)>, used_imports: FxHashSet<NodeId>, maybe_unused_trait_imports: FxIndexSet<LocalDefId>, @@ -1085,7 +1084,7 @@ pub struct Resolver<'a, 'tcx> { next_node_id: NodeId, - node_id_to_def_id: FxHashMap<ast::NodeId, LocalDefId>, + node_id_to_def_id: NodeMap<LocalDefId>, def_id_to_node_id: IndexVec<LocalDefId, ast::NodeId>, /// Indices of unnamed struct or variant fields with unresolved attributes. @@ -1226,10 +1225,7 @@ impl<'tcx> Resolver<'_, 'tcx> { ); // FIXME: remove `def_span` body, pass in the right spans here and call `tcx.at().create_def()` - let def_id = self.tcx.untracked().definitions.write().create_def(parent, data); - - let feed = self.tcx.feed_local_def_id(def_id); - feed.def_kind(def_kind); + let def_id = self.tcx.create_def(parent, name, def_kind); // Create the definition. if expn_id != ExpnId::root() { @@ -1295,12 +1291,9 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { &mut FxHashMap::default(), ); - let mut visibilities = FxHashMap::default(); - visibilities.insert(CRATE_DEF_ID, ty::Visibility::Public); - let mut def_id_to_node_id = IndexVec::default(); assert_eq!(def_id_to_node_id.push(CRATE_NODE_ID), CRATE_DEF_ID); - let mut node_id_to_def_id = FxHashMap::default(); + let mut node_id_to_def_id = NodeMap::default(); node_id_to_def_id.insert(CRATE_NODE_ID, CRATE_DEF_ID); let mut invocation_parents = FxHashMap::default(); @@ -1363,7 +1356,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { ast_transform_scopes: FxHashMap::default(), glob_map: Default::default(), - visibilities, + visibilities_for_hashing: Default::default(), used_imports: FxHashSet::default(), maybe_unused_trait_imports: Default::default(), @@ -1450,6 +1443,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { let root_parent_scope = ParentScope::module(graph_root, &resolver); resolver.invocation_parent_scopes.insert(LocalExpnId::ROOT, root_parent_scope); + resolver.feed_visibility(CRATE_DEF_ID, ty::Visibility::Public); resolver } @@ -1497,10 +1491,14 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { Default::default() } + fn feed_visibility(&mut self, def_id: LocalDefId, vis: ty::Visibility) { + self.tcx.feed_local_def_id(def_id).visibility(vis.to_def_id()); + self.visibilities_for_hashing.push((def_id, vis)); + } + pub fn into_outputs(self) -> ResolverOutputs { let proc_macros = self.proc_macros.iter().map(|id| self.local_def_id(*id)).collect(); let expn_that_defined = self.expn_that_defined; - let visibilities = self.visibilities; let extern_crate_map = self.extern_crate_map; let maybe_unused_trait_imports = self.maybe_unused_trait_imports; let glob_map = self.glob_map; @@ -1517,7 +1515,7 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> { let global_ctxt = ResolverGlobalCtxt { expn_that_defined, - visibilities, + visibilities_for_hashing: self.visibilities_for_hashing, effective_visibilities, extern_crate_map, module_children: self.module_children, diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index ca225416e36..1001286b6c2 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -205,10 +205,7 @@ impl<'a, 'tcx> ResolverExpand for Resolver<'a, 'tcx> { fn register_builtin_macro(&mut self, name: Symbol, ext: SyntaxExtensionKind) { if self.builtin_macros.insert(name, BuiltinMacroState::NotYetSeen(ext)).is_some() { - self.tcx - .sess - .diagnostic() - .bug(format!("built-in macro `{name}` was already registered")); + self.tcx.sess.dcx().bug(format!("built-in macro `{name}` was already registered")); } } diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 20d18fa4b83..0d731e330f3 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -7,11 +7,11 @@ use crate::errors::FileWriteFail; use crate::search_paths::SearchPath; use crate::utils::{CanonicalizedPath, NativeLib, NativeLibKind}; use crate::{lint, HashStableContext}; -use crate::{EarlyErrorHandler, Session}; +use crate::{EarlyDiagCtxt, Session}; use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet}; use rustc_data_structures::stable_hasher::{StableOrd, ToStableHashKey}; use rustc_errors::emitter::HumanReadableErrorType; -use rustc_errors::{ColorConfig, DiagnosticArgValue, HandlerFlags, IntoDiagnosticArg}; +use rustc_errors::{ColorConfig, DiagCtxtFlags, DiagnosticArgValue, IntoDiagnosticArg}; use rustc_feature::UnstableFeatures; use rustc_span::edition::{Edition, DEFAULT_EDITION, EDITION_NAME_LIST, LATEST_STABLE_EDITION}; use rustc_span::source_map::FilePathMapping; @@ -1155,8 +1155,8 @@ impl Options { } impl UnstableOptions { - pub fn diagnostic_handler_flags(&self, can_emit_warnings: bool) -> HandlerFlags { - HandlerFlags { + pub fn dcx_flags(&self, can_emit_warnings: bool) -> DiagCtxtFlags { + DiagCtxtFlags { can_emit_warnings, treat_err_as_bug: self.treat_err_as_bug, dont_buffer_diagnostics: self.dont_buffer_diagnostics, @@ -1584,7 +1584,7 @@ pub fn build_configuration(sess: &Session, mut user_cfg: Cfg) -> Cfg { } pub(super) fn build_target_config( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, opts: &Options, target_override: Option<Target>, sysroot: &Path, @@ -1594,17 +1594,17 @@ pub(super) fn build_target_config( |t| Ok((t, TargetWarnings::empty())), ); let (target, target_warnings) = target_result.unwrap_or_else(|e| { - handler.early_error(format!( + early_dcx.early_fatal(format!( "Error loading target specification: {e}. \ Run `rustc --print target-list` for a list of built-in targets" )) }); for warning in target_warnings.warning_messages() { - handler.early_warn(warning) + early_dcx.early_warn(warning) } if !matches!(target.pointer_width, 16 | 32 | 64) { - handler.early_error(format!( + early_dcx.early_fatal(format!( "target specification was invalid: unrecognized target-pointer-width {}", target.pointer_width )) @@ -1844,7 +1844,7 @@ pub fn rustc_optgroups() -> Vec<RustcOptGroup> { } pub fn get_cmd_lint_options( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches, ) -> (Vec<(String, lint::Level)>, bool, Option<lint::Level>) { let mut lint_opts_with_position = vec![]; @@ -1869,14 +1869,14 @@ pub fn get_cmd_lint_options( let lint_cap = matches.opt_str("cap-lints").map(|cap| { lint::Level::from_str(&cap) - .unwrap_or_else(|| handler.early_error(format!("unknown lint level: `{cap}`"))) + .unwrap_or_else(|| early_dcx.early_fatal(format!("unknown lint level: `{cap}`"))) }); (lint_opts, describe_lints, lint_cap) } /// Parses the `--color` flag. -pub fn parse_color(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> ColorConfig { +pub fn parse_color(early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches) -> ColorConfig { match matches.opt_str("color").as_deref() { Some("auto") => ColorConfig::Auto, Some("always") => ColorConfig::Always, @@ -1884,7 +1884,7 @@ pub fn parse_color(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> C None => ColorConfig::Auto, - Some(arg) => handler.early_error(format!( + Some(arg) => early_dcx.early_fatal(format!( "argument for `--color` must be auto, \ always or never (instead was `{arg}`)" )), @@ -1930,7 +1930,7 @@ impl JsonUnusedExterns { /// /// The first value returned is how to render JSON diagnostics, and the second /// is whether or not artifact notifications are enabled. -pub fn parse_json(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> JsonConfig { +pub fn parse_json(early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches) -> JsonConfig { let mut json_rendered: fn(ColorConfig) -> HumanReadableErrorType = HumanReadableErrorType::Default; let mut json_color = ColorConfig::Never; @@ -1942,7 +1942,7 @@ pub fn parse_json(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> Js // won't actually be emitting any colors and anything colorized is // embedded in a diagnostic message anyway. if matches.opt_str("color").is_some() { - handler.early_error("cannot specify the `--color` option with `--json`"); + early_dcx.early_fatal("cannot specify the `--color` option with `--json`"); } for sub_option in option.split(',') { @@ -1953,7 +1953,7 @@ pub fn parse_json(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> Js "unused-externs" => json_unused_externs = JsonUnusedExterns::Loud, "unused-externs-silent" => json_unused_externs = JsonUnusedExterns::Silent, "future-incompat" => json_future_incompat = true, - s => handler.early_error(format!("unknown `--json` option `{s}`")), + s => early_dcx.early_fatal(format!("unknown `--json` option `{s}`")), } } } @@ -1968,7 +1968,7 @@ pub fn parse_json(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> Js /// Parses the `--error-format` flag. pub fn parse_error_format( - handler: &mut EarlyErrorHandler, + early_dcx: &mut EarlyDiagCtxt, matches: &getopts::Matches, color: ColorConfig, json_rendered: HumanReadableErrorType, @@ -1990,10 +1990,10 @@ pub fn parse_error_format( Some("short") => ErrorOutputType::HumanReadable(HumanReadableErrorType::Short(color)), Some(arg) => { - handler.abort_if_error_and_set_error_format(ErrorOutputType::HumanReadable( + early_dcx.abort_if_error_and_set_error_format(ErrorOutputType::HumanReadable( HumanReadableErrorType::Default(color), )); - handler.early_error(format!( + early_dcx.early_fatal(format!( "argument for `--error-format` must be `human`, `json` or \ `short` (instead was `{arg}`)" )) @@ -2010,7 +2010,7 @@ pub fn parse_error_format( // `--error-format=json`. This means that `--json` is specified we // should actually be emitting JSON blobs. _ if !matches.opt_strs("json").is_empty() => { - handler.early_error("using `--json` requires also using `--error-format=json`"); + early_dcx.early_fatal("using `--json` requires also using `--error-format=json`"); } _ => {} @@ -2019,10 +2019,10 @@ pub fn parse_error_format( error_format } -pub fn parse_crate_edition(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> Edition { +pub fn parse_crate_edition(early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches) -> Edition { let edition = match matches.opt_str("edition") { Some(arg) => Edition::from_str(&arg).unwrap_or_else(|_| { - handler.early_error(format!( + early_dcx.early_fatal(format!( "argument for `--edition` must be one of: \ {EDITION_NAME_LIST}. (instead was `{arg}`)" )) @@ -2039,40 +2039,40 @@ pub fn parse_crate_edition(handler: &EarlyErrorHandler, matches: &getopts::Match } else { format!("edition {edition} is unstable and only available with -Z unstable-options") }; - handler.early_error(msg) + early_dcx.early_fatal(msg) } edition } fn check_error_format_stability( - handler: &mut EarlyErrorHandler, + early_dcx: &mut EarlyDiagCtxt, unstable_opts: &UnstableOptions, error_format: ErrorOutputType, json_rendered: HumanReadableErrorType, ) { if !unstable_opts.unstable_options { if let ErrorOutputType::Json { pretty: true, json_rendered } = error_format { - handler.abort_if_error_and_set_error_format(ErrorOutputType::Json { + early_dcx.abort_if_error_and_set_error_format(ErrorOutputType::Json { pretty: false, json_rendered, }); - handler.early_error("`--error-format=pretty-json` is unstable"); + early_dcx.early_fatal("`--error-format=pretty-json` is unstable"); } if let ErrorOutputType::HumanReadable(HumanReadableErrorType::AnnotateSnippet(_)) = error_format { - handler.abort_if_error_and_set_error_format(ErrorOutputType::Json { + early_dcx.abort_if_error_and_set_error_format(ErrorOutputType::Json { pretty: false, json_rendered, }); - handler.early_error("`--error-format=human-annotate-rs` is unstable"); + early_dcx.early_fatal("`--error-format=human-annotate-rs` is unstable"); } } } fn parse_output_types( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, unstable_opts: &UnstableOptions, matches: &getopts::Matches, ) -> OutputTypes { @@ -2082,7 +2082,7 @@ fn parse_output_types( for output_type in list.split(',') { let (shorthand, path) = split_out_file_name(output_type); let output_type = OutputType::from_shorthand(shorthand).unwrap_or_else(|| { - handler.early_error(format!( + early_dcx.early_fatal(format!( "unknown emission type: `{shorthand}` - expected one of: {display}", display = OutputType::shorthands_display(), )) @@ -2106,7 +2106,7 @@ fn split_out_file_name(arg: &str) -> (&str, Option<OutFileName>) { } fn should_override_cgus_and_disable_thinlto( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, output_types: &OutputTypes, matches: &getopts::Matches, mut codegen_units: Option<usize>, @@ -2126,12 +2126,12 @@ fn should_override_cgus_and_disable_thinlto( Some(n) if n > 1 => { if matches.opt_present("o") { for ot in &incompatible { - handler.early_warn(format!( + early_dcx.early_warn(format!( "`--emit={ot}` with `-o` incompatible with \ `-C codegen-units=N` for N > 1", )); } - handler.early_warn("resetting to default -C codegen-units=1"); + early_dcx.early_warn("resetting to default -C codegen-units=1"); codegen_units = Some(1); disable_local_thinlto = true; } @@ -2144,14 +2144,14 @@ fn should_override_cgus_and_disable_thinlto( } if codegen_units == Some(0) { - handler.early_error("value for codegen units must be a positive non-zero integer"); + early_dcx.early_fatal("value for codegen units must be a positive non-zero integer"); } (disable_local_thinlto, codegen_units) } fn collect_print_requests( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, cg: &mut CodegenOptions, unstable_opts: &mut UnstableOptions, matches: &getopts::Matches, @@ -2204,7 +2204,7 @@ fn collect_print_requests( if unstable_opts.unstable_options { PrintKind::TargetSpec } else { - handler.early_error( + early_dcx.early_fatal( "the `-Z unstable-options` flag must also be passed to \ enable the target-spec-json print option", ); @@ -2214,7 +2214,7 @@ fn collect_print_requests( if unstable_opts.unstable_options { PrintKind::AllTargetSpecs } else { - handler.early_error( + early_dcx.early_fatal( "the `-Z unstable-options` flag must also be passed to \ enable the all-target-specs-json print option", ); @@ -2225,7 +2225,7 @@ fn collect_print_requests( let prints = PRINT_KINDS.iter().map(|(name, _)| format!("`{name}`")).collect::<Vec<_>>(); let prints = prints.join(", "); - handler.early_error(format!( + early_dcx.early_fatal(format!( "unknown print request `{req}`. Valid print requests are: {prints}" )); } @@ -2234,7 +2234,7 @@ fn collect_print_requests( let out = out.unwrap_or(OutFileName::Stdout); if let OutFileName::Real(path) = &out { if !printed_paths.insert(path.clone()) { - handler.early_error(format!( + early_dcx.early_fatal(format!( "cannot print multiple outputs to the same path: {}", path.display(), )); @@ -2247,15 +2247,12 @@ fn collect_print_requests( prints } -pub fn parse_target_triple( - handler: &EarlyErrorHandler, - matches: &getopts::Matches, -) -> TargetTriple { +pub fn parse_target_triple(early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches) -> TargetTriple { match matches.opt_str("target") { Some(target) if target.ends_with(".json") => { let path = Path::new(&target); TargetTriple::from_path(path).unwrap_or_else(|_| { - handler.early_error(format!("target file {path:?} does not exist")) + early_dcx.early_fatal(format!("target file {path:?} does not exist")) }) } Some(target) => TargetTriple::TargetTriple(target), @@ -2264,7 +2261,7 @@ pub fn parse_target_triple( } fn parse_opt_level( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches, cg: &CodegenOptions, ) -> OptLevel { @@ -2294,7 +2291,7 @@ fn parse_opt_level( "s" => OptLevel::Size, "z" => OptLevel::SizeMin, arg => { - handler.early_error(format!( + early_dcx.early_fatal(format!( "optimization level needs to be \ between 0-3, s or z (instead was `{arg}`)" )); @@ -2317,21 +2314,21 @@ fn select_debuginfo(matches: &getopts::Matches, cg: &CodegenOptions) -> DebugInf } fn parse_assert_incr_state( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, opt_assertion: &Option<String>, ) -> Option<IncrementalStateAssertion> { match opt_assertion { Some(s) if s.as_str() == "loaded" => Some(IncrementalStateAssertion::Loaded), Some(s) if s.as_str() == "not-loaded" => Some(IncrementalStateAssertion::NotLoaded), Some(s) => { - handler.early_error(format!("unexpected incremental state assertion value: {s}")) + early_dcx.early_fatal(format!("unexpected incremental state assertion value: {s}")) } None => None, } } fn parse_native_lib_kind( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches, kind: &str, ) -> (NativeLibKind, Option<bool>) { @@ -2351,22 +2348,22 @@ fn parse_native_lib_kind( } else { ", the `-Z unstable-options` flag must also be passed to use it" }; - handler.early_error(format!("library kind `link-arg` is unstable{why}")) + early_dcx.early_fatal(format!("library kind `link-arg` is unstable{why}")) } NativeLibKind::LinkArg } - _ => handler.early_error(format!( + _ => early_dcx.early_fatal(format!( "unknown library kind `{kind}`, expected one of: static, dylib, framework, link-arg" )), }; match modifiers { None => (kind, None), - Some(modifiers) => parse_native_lib_modifiers(handler, kind, modifiers, matches), + Some(modifiers) => parse_native_lib_modifiers(early_dcx, kind, modifiers, matches), } } fn parse_native_lib_modifiers( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, mut kind: NativeLibKind, modifiers: &str, matches: &getopts::Matches, @@ -2375,7 +2372,7 @@ fn parse_native_lib_modifiers( for modifier in modifiers.split(',') { let (modifier, value) = match modifier.strip_prefix(['+', '-']) { Some(m) => (m, modifier.starts_with('+')), - None => handler.early_error( + None => early_dcx.early_fatal( "invalid linking modifier syntax, expected '+' or '-' prefix \ before one of: bundle, verbatim, whole-archive, as-needed", ), @@ -2388,20 +2385,20 @@ fn parse_native_lib_modifiers( } else { ", the `-Z unstable-options` flag must also be passed to use it" }; - handler.early_error(format!("linking modifier `{modifier}` is unstable{why}")) + early_dcx.early_fatal(format!("linking modifier `{modifier}` is unstable{why}")) } }; let assign_modifier = |dst: &mut Option<bool>| { if dst.is_some() { let msg = format!("multiple `{modifier}` modifiers in a single `-l` option"); - handler.early_error(msg) + early_dcx.early_fatal(msg) } else { *dst = Some(value); } }; match (modifier, &mut kind) { ("bundle", NativeLibKind::Static { bundle, .. }) => assign_modifier(bundle), - ("bundle", _) => handler.early_error( + ("bundle", _) => early_dcx.early_fatal( "linking modifier `bundle` is only compatible with `static` linking kind", ), @@ -2410,7 +2407,7 @@ fn parse_native_lib_modifiers( ("whole-archive", NativeLibKind::Static { whole_archive, .. }) => { assign_modifier(whole_archive) } - ("whole-archive", _) => handler.early_error( + ("whole-archive", _) => early_dcx.early_fatal( "linking modifier `whole-archive` is only compatible with `static` linking kind", ), @@ -2419,14 +2416,14 @@ fn parse_native_lib_modifiers( report_unstable_modifier(); assign_modifier(as_needed) } - ("as-needed", _) => handler.early_error( + ("as-needed", _) => early_dcx.early_fatal( "linking modifier `as-needed` is only compatible with \ `dylib` and `framework` linking kinds", ), // Note: this error also excludes the case with empty modifier // string, like `modifiers = ""`. - _ => handler.early_error(format!( + _ => early_dcx.early_fatal(format!( "unknown linking modifier `{modifier}`, expected one \ of: bundle, verbatim, whole-archive, as-needed" )), @@ -2436,7 +2433,7 @@ fn parse_native_lib_modifiers( (kind, verbatim) } -fn parse_libs(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> Vec<NativeLib> { +fn parse_libs(early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches) -> Vec<NativeLib> { matches .opt_strs("l") .into_iter() @@ -2450,7 +2447,7 @@ fn parse_libs(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> Vec<Na let (name, kind, verbatim) = match s.split_once('=') { None => (s, NativeLibKind::Unspecified, None), Some((kind, name)) => { - let (kind, verbatim) = parse_native_lib_kind(handler, matches, kind); + let (kind, verbatim) = parse_native_lib_kind(early_dcx, matches, kind); (name.to_string(), kind, verbatim) } }; @@ -2460,7 +2457,7 @@ fn parse_libs(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> Vec<Na Some((name, new_name)) => (name.to_string(), Some(new_name.to_owned())), }; if name.is_empty() { - handler.early_error("library name must not be empty"); + early_dcx.early_fatal("library name must not be empty"); } NativeLib { name, new_name, kind, verbatim } }) @@ -2468,7 +2465,7 @@ fn parse_libs(handler: &EarlyErrorHandler, matches: &getopts::Matches) -> Vec<Na } pub fn parse_externs( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches, unstable_opts: &UnstableOptions, ) -> Externs { @@ -2496,7 +2493,7 @@ pub fn parse_externs( }; if !is_ascii_ident(&name) { - let mut error = handler.early_struct_error(format!( + let mut error = early_dcx.early_struct_fatal(format!( "crate name `{name}` passed to `--extern` is not a valid ASCII identifier" )); let adjusted_name = name.replace('-', "_"); @@ -2558,7 +2555,7 @@ pub fn parse_externs( let mut force = false; if let Some(opts) = options { if !is_unstable_enabled { - handler.early_error( + early_dcx.early_fatal( "the `-Z unstable-options` flag must also be passed to \ enable `--extern` options", ); @@ -2570,14 +2567,14 @@ pub fn parse_externs( if let ExternLocation::ExactPaths(_) = &entry.location { add_prelude = false; } else { - handler.early_error( + early_dcx.early_fatal( "the `noprelude` --extern option requires a file path", ); } } "nounused" => nounused_dep = true, "force" => force = true, - _ => handler.early_error(format!("unknown --extern option `{opt}`")), + _ => early_dcx.early_fatal(format!("unknown --extern option `{opt}`")), } } } @@ -2596,7 +2593,7 @@ pub fn parse_externs( } fn parse_remap_path_prefix( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches, unstable_opts: &UnstableOptions, ) -> Vec<(PathBuf, PathBuf)> { @@ -2604,7 +2601,9 @@ fn parse_remap_path_prefix( .opt_strs("remap-path-prefix") .into_iter() .map(|remap| match remap.rsplit_once('=') { - None => handler.early_error("--remap-path-prefix must contain '=' between FROM and TO"), + None => { + early_dcx.early_fatal("--remap-path-prefix must contain '=' between FROM and TO") + } Some((from, to)) => (PathBuf::from(from), PathBuf::from(to)), }) .collect(); @@ -2619,7 +2618,7 @@ fn parse_remap_path_prefix( } fn parse_logical_env( - handler: &mut EarlyErrorHandler, + early_dcx: &mut EarlyDiagCtxt, matches: &getopts::Matches, ) -> FxIndexMap<String, String> { let mut vars = FxIndexMap::default(); @@ -2628,7 +2627,7 @@ fn parse_logical_env( if let Some((name, val)) = arg.split_once('=') { vars.insert(name.to_string(), val.to_string()); } else { - handler.early_error(format!("`--env`: specify value for variable `{arg}`")); + early_dcx.early_fatal(format!("`--env`: specify value for variable `{arg}`")); } } @@ -2637,87 +2636,88 @@ fn parse_logical_env( // JUSTIFICATION: before wrapper fn is available #[allow(rustc::bad_opt_access)] -pub fn build_session_options( - handler: &mut EarlyErrorHandler, - matches: &getopts::Matches, -) -> Options { - let color = parse_color(handler, matches); +pub fn build_session_options(early_dcx: &mut EarlyDiagCtxt, matches: &getopts::Matches) -> Options { + let color = parse_color(early_dcx, matches); - let edition = parse_crate_edition(handler, matches); + let edition = parse_crate_edition(early_dcx, matches); let JsonConfig { json_rendered, json_artifact_notifications, json_unused_externs, json_future_incompat, - } = parse_json(handler, matches); + } = parse_json(early_dcx, matches); - let error_format = parse_error_format(handler, matches, color, json_rendered); + let error_format = parse_error_format(early_dcx, matches, color, json_rendered); - handler.abort_if_error_and_set_error_format(error_format); + early_dcx.abort_if_error_and_set_error_format(error_format); let diagnostic_width = matches.opt_get("diagnostic-width").unwrap_or_else(|_| { - handler.early_error("`--diagnostic-width` must be an positive integer"); + early_dcx.early_fatal("`--diagnostic-width` must be an positive integer"); }); let unparsed_crate_types = matches.opt_strs("crate-type"); let crate_types = parse_crate_types_from_list(unparsed_crate_types) - .unwrap_or_else(|e| handler.early_error(e)); + .unwrap_or_else(|e| early_dcx.early_fatal(e)); - let mut unstable_opts = UnstableOptions::build(handler, matches); - let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(handler, matches); + let mut unstable_opts = UnstableOptions::build(early_dcx, matches); + let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(early_dcx, matches); - check_error_format_stability(handler, &unstable_opts, error_format, json_rendered); + check_error_format_stability(early_dcx, &unstable_opts, error_format, json_rendered); if !unstable_opts.unstable_options && json_unused_externs.is_enabled() { - handler.early_error( + early_dcx.early_fatal( "the `-Z unstable-options` flag must also be passed to enable \ the flag `--json=unused-externs`", ); } - let output_types = parse_output_types(handler, &unstable_opts, matches); + let output_types = parse_output_types(early_dcx, &unstable_opts, matches); - let mut cg = CodegenOptions::build(handler, matches); - let (disable_local_thinlto, mut codegen_units) = - should_override_cgus_and_disable_thinlto(handler, &output_types, matches, cg.codegen_units); + let mut cg = CodegenOptions::build(early_dcx, matches); + let (disable_local_thinlto, mut codegen_units) = should_override_cgus_and_disable_thinlto( + early_dcx, + &output_types, + matches, + cg.codegen_units, + ); if unstable_opts.threads == 0 { - handler.early_error("value for threads must be a positive non-zero integer"); + early_dcx.early_fatal("value for threads must be a positive non-zero integer"); } let fuel = unstable_opts.fuel.is_some() || unstable_opts.print_fuel.is_some(); if fuel && unstable_opts.threads > 1 { - handler.early_error("optimization fuel is incompatible with multiple threads"); + early_dcx.early_fatal("optimization fuel is incompatible with multiple threads"); } if fuel && cg.incremental.is_some() { - handler.early_error("optimization fuel is incompatible with incremental compilation"); + early_dcx.early_fatal("optimization fuel is incompatible with incremental compilation"); } let incremental = cg.incremental.as_ref().map(PathBuf::from); - let assert_incr_state = parse_assert_incr_state(handler, &unstable_opts.assert_incr_state); + let assert_incr_state = parse_assert_incr_state(early_dcx, &unstable_opts.assert_incr_state); if unstable_opts.profile && incremental.is_some() { - handler.early_error("can't instrument with gcov profiling when compiling incrementally"); + early_dcx.early_fatal("can't instrument with gcov profiling when compiling incrementally"); } if unstable_opts.profile { match codegen_units { Some(1) => {} None => codegen_units = Some(1), - Some(_) => handler - .early_error("can't instrument with gcov profiling with multiple codegen units"), + Some(_) => early_dcx + .early_fatal("can't instrument with gcov profiling with multiple codegen units"), } } if cg.profile_generate.enabled() && cg.profile_use.is_some() { - handler.early_error("options `-C profile-generate` and `-C profile-use` are exclusive"); + early_dcx.early_fatal("options `-C profile-generate` and `-C profile-use` are exclusive"); } if unstable_opts.profile_sample_use.is_some() && (cg.profile_generate.enabled() || cg.profile_use.is_some()) { - handler.early_error( + early_dcx.early_fatal( "option `-Z profile-sample-use` cannot be used with `-C profile-generate` or `-C profile-use`", ); } @@ -2730,7 +2730,7 @@ pub fn build_session_options( // Unstable values: Some(SymbolManglingVersion::Legacy) => { if !unstable_opts.unstable_options { - handler.early_error( + early_dcx.early_fatal( "`-C symbol-mangling-version=legacy` requires `-Z unstable-options`", ); } @@ -2747,7 +2747,7 @@ pub fn build_session_options( | InstrumentCoverage::ExceptUnusedFunctions | InstrumentCoverage::ExceptUnusedGenerics => { if !unstable_opts.unstable_options { - handler.early_error( + early_dcx.early_fatal( "`-C instrument-coverage=branch` and `-C instrument-coverage=except-*` \ require `-Z unstable-options`", ); @@ -2757,7 +2757,7 @@ pub fn build_session_options( if cg.instrument_coverage != InstrumentCoverage::Off { if cg.profile_generate.enabled() || cg.profile_use.is_some() { - handler.early_error( + early_dcx.early_fatal( "option `-C instrument-coverage` is not compatible with either `-C profile-use` \ or `-C profile-generate`", ); @@ -2770,7 +2770,7 @@ pub fn build_session_options( match cg.symbol_mangling_version { None => cg.symbol_mangling_version = Some(SymbolManglingVersion::V0), Some(SymbolManglingVersion::Legacy) => { - handler.early_warn( + early_dcx.early_warn( "-C instrument-coverage requires symbol mangling version `v0`, \ but `-C symbol-mangling-version=legacy` was specified", ); @@ -2787,7 +2787,7 @@ pub fn build_session_options( match cg.lto { LtoCli::No | LtoCli::Unspecified => {} LtoCli::Yes | LtoCli::NoParam | LtoCli::Thin | LtoCli::Fat => { - handler.early_error("options `-C embed-bitcode=no` and `-C lto` are incompatible") + early_dcx.early_fatal("options `-C embed-bitcode=no` and `-C lto` are incompatible") } } } @@ -2799,7 +2799,7 @@ pub fn build_session_options( let uses_unstable_self_contained_option = cg.link_self_contained.are_unstable_variants_set(); if uses_unstable_self_contained_option { - handler.early_error( + early_dcx.early_fatal( "only `-C link-self-contained` values `y`/`yes`/`on`/`n`/`no`/`off` are stable, \ the `-Z unstable-options` flag must also be passed to use the unstable values", ); @@ -2807,7 +2807,7 @@ pub fn build_session_options( if let Some(flavor) = cg.linker_flavor { if flavor.is_unstable() { - handler.early_error(format!( + early_dcx.early_fatal(format!( "the linker flavor `{}` is unstable, the `-Z unstable-options` \ flag must also be passed to use the unstable values", flavor.desc() @@ -2824,18 +2824,18 @@ pub fn build_session_options( .map(|c| c.as_str().unwrap()) .intersperse(", ") .collect(); - handler.early_error(format!( + early_dcx.early_fatal(format!( "some `-C link-self-contained` components were both enabled and disabled: {names}" )); } - let prints = collect_print_requests(handler, &mut cg, &mut unstable_opts, matches); + let prints = collect_print_requests(early_dcx, &mut cg, &mut unstable_opts, matches); let cg = cg; let sysroot_opt = matches.opt_str("sysroot").map(|m| PathBuf::from(&m)); - let target_triple = parse_target_triple(handler, matches); - let opt_level = parse_opt_level(handler, matches, &cg); + let target_triple = parse_target_triple(early_dcx, matches); + let opt_level = parse_opt_level(early_dcx, matches, &cg); // The `-g` and `-C debuginfo` flags specify the same setting, so we want to be able // to use them interchangeably. See the note above (regarding `-O` and `-C opt-level`) // for more details. @@ -2845,35 +2845,36 @@ pub fn build_session_options( let mut search_paths = vec![]; for s in &matches.opt_strs("L") { - search_paths.push(SearchPath::from_cli_opt(handler, s)); + search_paths.push(SearchPath::from_cli_opt(early_dcx, s)); } - let libs = parse_libs(handler, matches); + let libs = parse_libs(early_dcx, matches); let test = matches.opt_present("test"); if !cg.remark.is_empty() && debuginfo == DebugInfo::None { - handler.early_warn("-C remark requires \"-C debuginfo=n\" to show source locations"); + early_dcx.early_warn("-C remark requires \"-C debuginfo=n\" to show source locations"); } if cg.remark.is_empty() && unstable_opts.remark_dir.is_some() { - handler.early_warn("using -Z remark-dir without enabling remarks using e.g. -C remark=all"); + early_dcx + .early_warn("using -Z remark-dir without enabling remarks using e.g. -C remark=all"); } - let externs = parse_externs(handler, matches, &unstable_opts); + let externs = parse_externs(early_dcx, matches, &unstable_opts); let crate_name = matches.opt_str("crate-name"); - let remap_path_prefix = parse_remap_path_prefix(handler, matches, &unstable_opts); + let remap_path_prefix = parse_remap_path_prefix(early_dcx, matches, &unstable_opts); - let pretty = parse_pretty(handler, &unstable_opts); + let pretty = parse_pretty(early_dcx, &unstable_opts); // query-dep-graph is required if dump-dep-graph is given #106736 if unstable_opts.dump_dep_graph && !unstable_opts.query_dep_graph { - handler.early_error("can't dump dependency graph without `-Z query-dep-graph`"); + early_dcx.early_fatal("can't dump dependency graph without `-Z query-dep-graph`"); } - let logical_env = parse_logical_env(handler, matches); + let logical_env = parse_logical_env(early_dcx, matches); // Try to find a directory containing the Rust `src`, for more details see // the doc comment on the `real_rust_source_base_dir` field. @@ -2904,7 +2905,7 @@ pub fn build_session_options( }; let working_dir = std::env::current_dir().unwrap_or_else(|e| { - handler.early_error(format!("Current directory is invalid: {e}")); + early_dcx.early_fatal(format!("Current directory is invalid: {e}")); }); let remap = file_path_mapping(remap_path_prefix.clone(), &unstable_opts); @@ -2959,7 +2960,7 @@ pub fn build_session_options( } } -fn parse_pretty(handler: &EarlyErrorHandler, unstable_opts: &UnstableOptions) -> Option<PpMode> { +fn parse_pretty(early_dcx: &EarlyDiagCtxt, unstable_opts: &UnstableOptions) -> Option<PpMode> { use PpMode::*; let first = match unstable_opts.unpretty.as_deref()? { @@ -2979,7 +2980,7 @@ fn parse_pretty(handler: &EarlyErrorHandler, unstable_opts: &UnstableOptions) -> "mir" => Mir, "stable-mir" => StableMir, "mir-cfg" => MirCFG, - name => handler.early_error(format!( + name => early_dcx.early_fatal(format!( "argument to `unpretty` must be one of `normal`, `identified`, \ `expanded`, `expanded,identified`, `expanded,hygiene`, \ `ast-tree`, `ast-tree,expanded`, `hir`, `hir,identified`, \ @@ -3026,7 +3027,7 @@ pub fn parse_crate_types_from_list(list_list: Vec<String>) -> Result<Vec<CrateTy pub mod nightly_options { use super::{OptionStability, RustcOptGroup}; - use crate::EarlyErrorHandler; + use crate::EarlyDiagCtxt; use rustc_feature::UnstableFeatures; pub fn is_unstable_enabled(matches: &getopts::Matches) -> bool { @@ -3043,7 +3044,7 @@ pub mod nightly_options { } pub fn check_nightly_options( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches, flags: &[RustcOptGroup], ) { @@ -3059,7 +3060,7 @@ pub mod nightly_options { continue; } if opt.name != "Z" && !has_z_unstable_option { - handler.early_error(format!( + early_dcx.early_fatal(format!( "the `-Z unstable-options` flag must also be passed to enable \ the flag `{}`", opt.name @@ -3075,17 +3076,17 @@ pub mod nightly_options { "the option `{}` is only accepted on the nightly compiler", opt.name ); - let _ = handler.early_error_no_abort(msg); + let _ = early_dcx.early_err(msg); } OptionStability::Stable => {} } } if nightly_options_on_stable > 0 { - handler + early_dcx .early_help("consider switching to a nightly toolchain: `rustup default nightly`"); - handler.early_note("selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>"); - handler.early_note("for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>"); - handler.early_error(format!( + early_dcx.early_note("selecting a toolchain with `+toolchain` arguments require a rustup proxy; see <https://rust-lang.github.io/rustup/concepts/index.html>"); + early_dcx.early_note("for more information about Rust's stability policy, see <https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#unstable-features>"); + early_dcx.early_fatal(format!( "{} nightly option{} were parsed", nightly_options_on_stable, if nightly_options_on_stable > 1 { "s" } else { "" } diff --git a/compiler/rustc_session/src/errors.rs b/compiler/rustc_session/src/errors.rs index aab7595ef6e..9f7d918d98b 100644 --- a/compiler/rustc_session/src/errors.rs +++ b/compiler/rustc_session/src/errors.rs @@ -3,7 +3,9 @@ use std::num::NonZeroU32; use crate::parse::ParseSess; use rustc_ast::token; use rustc_ast::util::literal::LitError; -use rustc_errors::{error_code, DiagnosticMessage, ErrorGuaranteed, IntoDiagnostic, MultiSpan}; +use rustc_errors::{ + error_code, DiagCtxt, DiagnosticBuilder, DiagnosticMessage, IntoDiagnostic, Level, MultiSpan, +}; use rustc_macros::Diagnostic; use rustc_span::{BytePos, Span, Symbol}; use rustc_target::spec::{SplitDebuginfo, StackProtector, TargetTriple}; @@ -15,11 +17,8 @@ pub struct FeatureGateError { impl<'a> IntoDiagnostic<'a> for FeatureGateError { #[track_caller] - fn into_diagnostic( - self, - handler: &'a rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'a, ErrorGuaranteed> { - let mut diag = handler.struct_err(self.explain); + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a> { + let mut diag = DiagnosticBuilder::new(dcx, level, self.explain); diag.set_span(self.span); diag.code(error_code!(E0658)); diag diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index e8ca556aa42..10a4bdb94d4 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -2,7 +2,7 @@ use crate::config::*; use crate::search_paths::SearchPath; use crate::utils::NativeLib; -use crate::{lint, EarlyErrorHandler}; +use crate::{lint, EarlyDiagCtxt}; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::profiling::TimePassesFormat; use rustc_data_structures::stable_hasher::Hash64; @@ -255,10 +255,10 @@ macro_rules! options { impl $struct_name { pub fn build( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches, ) -> $struct_name { - build_options(handler, matches, $stat, $prefix, $outputname) + build_options(early_dcx, matches, $stat, $prefix, $outputname) } fn dep_tracking_hash(&self, for_crate_hash: bool, error_format: ErrorOutputType) -> u64 { @@ -319,7 +319,7 @@ type OptionSetter<O> = fn(&mut O, v: Option<&str>) -> bool; type OptionDescrs<O> = &'static [(&'static str, OptionSetter<O>, &'static str, &'static str)]; fn build_options<O: Default>( - handler: &EarlyErrorHandler, + early_dcx: &EarlyDiagCtxt, matches: &getopts::Matches, descrs: OptionDescrs<O>, prefix: &str, @@ -337,12 +337,12 @@ fn build_options<O: Default>( Some((_, setter, type_desc, _)) => { if !setter(&mut op, value) { match value { - None => handler.early_error( + None => early_dcx.early_fatal( format!( "{outputname} option `{key}` requires {type_desc} ({prefix} {key}=<value>)" ), ), - Some(value) => handler.early_error( + Some(value) => early_dcx.early_fatal( format!( "incorrect value `{value}` for {outputname} option `{key}` - {type_desc} was expected" ), @@ -350,7 +350,7 @@ fn build_options<O: Default>( } } } - None => handler.early_error(format!("unknown {outputname} option: `{key}`")), + None => early_dcx.early_fatal(format!("unknown {outputname} option: `{key}`")), } } return op; @@ -1694,6 +1694,8 @@ options! { "link native libraries in the linker invocation (default: yes)"), link_only: bool = (false, parse_bool, [TRACKED], "link the `.rlink` file generated by `-Z no-link` (default: no)"), + lint_mir: bool = (false, parse_bool, [UNTRACKED], + "lint MIR before and after each transformation"), llvm_module_flag: Vec<(String, u32, String)> = (Vec::new(), parse_llvm_module_flag, [TRACKED], "a list of module flags to pass to LLVM (space separated)"), llvm_plugins: Vec<String> = (Vec::new(), parse_list, [TRACKED], diff --git a/compiler/rustc_session/src/parse.rs b/compiler/rustc_session/src/parse.rs index 525f00f5cd0..52a637b74e7 100644 --- a/compiler/rustc_session/src/parse.rs +++ b/compiler/rustc_session/src/parse.rs @@ -11,10 +11,10 @@ use crate::lint::{ use rustc_ast::node_id::NodeId; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_data_structures::sync::{AppendOnlyVec, Lock, Lrc}; -use rustc_errors::{emitter::SilentEmitter, Handler}; +use rustc_errors::{emitter::SilentEmitter, DiagCtxt}; use rustc_errors::{ fallback_fluent_bundle, Diagnostic, DiagnosticBuilder, DiagnosticId, DiagnosticMessage, - ErrorGuaranteed, IntoDiagnostic, MultiSpan, Noted, StashKey, + ErrorGuaranteed, FatalAbort, IntoDiagnostic, Level, MultiSpan, StashKey, }; use rustc_feature::{find_feature_issue, GateIssue, UnstableFeatures}; use rustc_span::edition::Edition; @@ -83,7 +83,7 @@ pub fn feature_err( feature: Symbol, span: impl Into<MultiSpan>, explain: impl Into<DiagnosticMessage>, -) -> DiagnosticBuilder<'_, ErrorGuaranteed> { +) -> DiagnosticBuilder<'_> { feature_err_issue(sess, feature, span, GateIssue::Language, explain) } @@ -98,13 +98,12 @@ pub fn feature_err_issue( span: impl Into<MultiSpan>, issue: GateIssue, explain: impl Into<DiagnosticMessage>, -) -> DiagnosticBuilder<'_, ErrorGuaranteed> { +) -> DiagnosticBuilder<'_> { let span = span.into(); // Cancel an earlier warning for this same error, if it exists. if let Some(span) = span.primary_span() { - if let Some(err) = sess.span_diagnostic.steal_diagnostic(span, StashKey::EarlySyntaxWarning) - { + if let Some(err) = sess.dcx.steal_diagnostic(span, StashKey::EarlySyntaxWarning) { err.cancel() } } @@ -138,7 +137,7 @@ pub fn feature_warn_issue( issue: GateIssue, explain: &'static str, ) { - let mut err = sess.span_diagnostic.struct_span_warn(span, explain); + let mut err = sess.dcx.struct_span_warn(span, explain); add_feature_diagnostics_for_issue(&mut err, sess, feature, issue, false); // Decorate this as a future-incompatibility lint as in rustc_middle::lint::struct_lint_level @@ -189,7 +188,7 @@ pub fn add_feature_diagnostics_for_issue( /// Info about a parsing session. pub struct ParseSess { - pub span_diagnostic: Handler, + pub dcx: DiagCtxt, pub unstable_features: UnstableFeatures, pub config: Cfg, pub check_config: CheckCfg, @@ -227,13 +226,13 @@ impl ParseSess { pub fn new(locale_resources: Vec<&'static str>, file_path_mapping: FilePathMapping) -> Self { let fallback_bundle = fallback_fluent_bundle(locale_resources, false); let sm = Lrc::new(SourceMap::new(file_path_mapping)); - let handler = Handler::with_tty_emitter(Some(sm.clone()), fallback_bundle); - ParseSess::with_span_handler(handler, sm) + let dcx = DiagCtxt::with_tty_emitter(Some(sm.clone()), fallback_bundle); + ParseSess::with_dcx(dcx, sm) } - pub fn with_span_handler(handler: Handler, source_map: Lrc<SourceMap>) -> Self { + pub fn with_dcx(dcx: DiagCtxt, source_map: Lrc<SourceMap>) -> Self { Self { - span_diagnostic: handler, + dcx, unstable_features: UnstableFeatures::from_environment(None), config: Cfg::default(), check_config: CheckCfg::default(), @@ -256,10 +255,10 @@ impl ParseSess { pub fn with_silent_emitter(fatal_note: Option<String>) -> Self { let fallback_bundle = fallback_fluent_bundle(Vec::new(), false); let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let fatal_handler = Handler::with_tty_emitter(None, fallback_bundle).disable_warnings(); - let handler = Handler::with_emitter(Box::new(SilentEmitter { fatal_handler, fatal_note })) + let fatal_dcx = DiagCtxt::with_tty_emitter(None, fallback_bundle).disable_warnings(); + let dcx = DiagCtxt::with_emitter(Box::new(SilentEmitter { fatal_dcx, fatal_note })) .disable_warnings(); - ParseSess::with_span_handler(handler, sm) + ParseSess::with_dcx(dcx, sm) } #[inline] @@ -319,11 +318,8 @@ impl ParseSess { } #[track_caller] - pub fn create_err<'a>( - &'a self, - err: impl IntoDiagnostic<'a>, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { - err.into_diagnostic(&self.span_diagnostic) + pub fn create_err<'a>(&'a self, err: impl IntoDiagnostic<'a>) -> DiagnosticBuilder<'a> { + err.into_diagnostic(&self.dcx, Level::Error { lint: false }) } #[track_caller] @@ -336,7 +332,7 @@ impl ParseSess { &'a self, warning: impl IntoDiagnostic<'a, ()>, ) -> DiagnosticBuilder<'a, ()> { - warning.into_diagnostic(&self.span_diagnostic) + warning.into_diagnostic(&self.dcx, Level::Warning(None)) } #[track_caller] @@ -347,47 +343,47 @@ impl ParseSess { #[track_caller] pub fn create_note<'a>( &'a self, - note: impl IntoDiagnostic<'a, Noted>, - ) -> DiagnosticBuilder<'a, Noted> { - note.into_diagnostic(&self.span_diagnostic) + note: impl IntoDiagnostic<'a, ()>, + ) -> DiagnosticBuilder<'a, ()> { + note.into_diagnostic(&self.dcx, Level::Note) } #[track_caller] - pub fn emit_note<'a>(&'a self, note: impl IntoDiagnostic<'a, Noted>) -> Noted { + pub fn emit_note<'a>(&'a self, note: impl IntoDiagnostic<'a, ()>) { self.create_note(note).emit() } #[track_caller] pub fn create_fatal<'a>( &'a self, - fatal: impl IntoDiagnostic<'a, !>, - ) -> DiagnosticBuilder<'a, !> { - fatal.into_diagnostic(&self.span_diagnostic) + fatal: impl IntoDiagnostic<'a, FatalAbort>, + ) -> DiagnosticBuilder<'a, FatalAbort> { + fatal.into_diagnostic(&self.dcx, Level::Fatal) } #[track_caller] - pub fn emit_fatal<'a>(&'a self, fatal: impl IntoDiagnostic<'a, !>) -> ! { + pub fn emit_fatal<'a>(&'a self, fatal: impl IntoDiagnostic<'a, FatalAbort>) -> ! { self.create_fatal(fatal).emit() } #[rustc_lint_diagnostics] #[track_caller] - pub fn struct_err( - &self, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - self.span_diagnostic.struct_err(msg) + pub fn struct_err(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_> { + self.dcx.struct_err(msg) } #[rustc_lint_diagnostics] #[track_caller] pub fn struct_warn(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> { - self.span_diagnostic.struct_warn(msg) + self.dcx.struct_warn(msg) } #[rustc_lint_diagnostics] #[track_caller] - pub fn struct_fatal(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, !> { - self.span_diagnostic.struct_fatal(msg) + pub fn struct_fatal( + &self, + msg: impl Into<DiagnosticMessage>, + ) -> DiagnosticBuilder<'_, FatalAbort> { + self.dcx.struct_fatal(msg) } } diff --git a/compiler/rustc_session/src/search_paths.rs b/compiler/rustc_session/src/search_paths.rs index 07e78d1760e..9b913c76998 100644 --- a/compiler/rustc_session/src/search_paths.rs +++ b/compiler/rustc_session/src/search_paths.rs @@ -1,5 +1,5 @@ use crate::filesearch::make_target_lib_path; -use crate::EarlyErrorHandler; +use crate::EarlyDiagCtxt; use std::path::{Path, PathBuf}; #[derive(Clone, Debug)] @@ -46,7 +46,7 @@ impl PathKind { } impl SearchPath { - pub fn from_cli_opt(handler: &EarlyErrorHandler, path: &str) -> Self { + pub fn from_cli_opt(early_dcx: &EarlyDiagCtxt, path: &str) -> Self { let (kind, path) = if let Some(stripped) = path.strip_prefix("native=") { (PathKind::Native, stripped) } else if let Some(stripped) = path.strip_prefix("crate=") { @@ -61,7 +61,7 @@ impl SearchPath { (PathKind::All, path) }; if path.is_empty() { - handler.early_error("empty search path given via `-L`"); + early_dcx.early_fatal("empty search path given via `-L`"); } let dir = PathBuf::from(path); diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs index 08a9b3d9fa0..272e231d3ed 100644 --- a/compiler/rustc_session/src/session.rs +++ b/compiler/rustc_session/src/session.rs @@ -22,9 +22,9 @@ use rustc_errors::emitter::{DynEmitter, EmitterWriter, HumanReadableErrorType}; use rustc_errors::json::JsonEmitter; use rustc_errors::registry::Registry; use rustc_errors::{ - error_code, fallback_fluent_bundle, DiagnosticBuilder, DiagnosticId, DiagnosticMessage, - ErrorGuaranteed, FluentBundle, Handler, IntoDiagnostic, LazyFallbackBundle, MultiSpan, Noted, - TerminalUrl, + error_code, fallback_fluent_bundle, DiagCtxt, DiagnosticBuilder, DiagnosticId, + DiagnosticMessage, ErrorGuaranteed, FatalAbort, FluentBundle, IntoDiagnostic, + LazyFallbackBundle, MultiSpan, TerminalUrl, }; use rustc_macros::HashStable_Generic; pub use rustc_span::def_id::StableCrateId; @@ -289,7 +289,7 @@ impl Session { /// Invoked all the way at the end to finish off diagnostics printing. pub fn finish_diagnostics(&self, registry: &Registry) { self.check_miri_unleashed_features(); - self.diagnostic().print_error_count(registry); + self.dcx().print_error_count(registry); self.emit_future_breakage(); } @@ -298,11 +298,11 @@ impl Session { return; } - let diags = self.diagnostic().take_future_breakage_diagnostics(); + let diags = self.dcx().take_future_breakage_diagnostics(); if diags.is_empty() { return; } - self.diagnostic().emit_future_breakage_report(diags); + self.dcx().emit_future_breakage_report(diags); } /// Returns true if the crate is a testing one. @@ -317,17 +317,7 @@ impl Session { sp: S, msg: impl Into<DiagnosticMessage>, ) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_span_warn(sp, msg) - } - #[rustc_lint_diagnostics] - #[track_caller] - pub fn struct_span_warn_with_expectation<S: Into<MultiSpan>>( - &self, - sp: S, - msg: impl Into<DiagnosticMessage>, - id: lint::LintExpectationId, - ) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_span_warn_with_expectation(sp, msg, id) + self.dcx().struct_span_warn(sp, msg) } #[rustc_lint_diagnostics] #[track_caller] @@ -337,35 +327,17 @@ impl Session { msg: impl Into<DiagnosticMessage>, code: DiagnosticId, ) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_span_warn_with_code(sp, msg, code) + self.dcx().struct_span_warn_with_code(sp, msg, code) } #[rustc_lint_diagnostics] #[track_caller] pub fn struct_warn(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_warn(msg) - } - #[rustc_lint_diagnostics] - #[track_caller] - pub fn struct_warn_with_expectation( - &self, - msg: impl Into<DiagnosticMessage>, - id: lint::LintExpectationId, - ) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_warn_with_expectation(msg, id) - } - #[rustc_lint_diagnostics] - #[track_caller] - pub fn struct_span_allow<S: Into<MultiSpan>>( - &self, - sp: S, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_span_allow(sp, msg) + self.dcx().struct_warn(msg) } #[rustc_lint_diagnostics] #[track_caller] pub fn struct_allow(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_allow(msg) + self.dcx().struct_allow(msg) } #[rustc_lint_diagnostics] #[track_caller] @@ -374,7 +346,7 @@ impl Session { msg: impl Into<DiagnosticMessage>, id: lint::LintExpectationId, ) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_expect(msg, id) + self.dcx().struct_expect(msg, id) } #[rustc_lint_diagnostics] #[track_caller] @@ -382,8 +354,8 @@ impl Session { &self, sp: S, msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - self.diagnostic().struct_span_err(sp, msg) + ) -> DiagnosticBuilder<'_> { + self.dcx().struct_span_err(sp, msg) } #[rustc_lint_diagnostics] #[track_caller] @@ -392,16 +364,13 @@ impl Session { sp: S, msg: impl Into<DiagnosticMessage>, code: DiagnosticId, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - self.diagnostic().struct_span_err_with_code(sp, msg, code) + ) -> DiagnosticBuilder<'_> { + self.dcx().struct_span_err_with_code(sp, msg, code) } // FIXME: This method should be removed (every error should have an associated error code). #[rustc_lint_diagnostics] #[track_caller] - pub fn struct_err( - &self, - msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { + pub fn struct_err(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_> { self.parse_sess.struct_err(msg) } #[track_caller] @@ -410,8 +379,8 @@ impl Session { &self, msg: impl Into<DiagnosticMessage>, code: DiagnosticId, - ) -> DiagnosticBuilder<'_, ErrorGuaranteed> { - self.diagnostic().struct_err_with_code(msg, code) + ) -> DiagnosticBuilder<'_> { + self.dcx().struct_err_with_code(msg, code) } #[rustc_lint_diagnostics] #[track_caller] @@ -420,7 +389,7 @@ impl Session { msg: impl Into<DiagnosticMessage>, code: DiagnosticId, ) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_warn_with_code(msg, code) + self.dcx().struct_warn_with_code(msg, code) } #[rustc_lint_diagnostics] #[track_caller] @@ -428,8 +397,8 @@ impl Session { &self, sp: S, msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, !> { - self.diagnostic().struct_span_fatal(sp, msg) + ) -> DiagnosticBuilder<'_, FatalAbort> { + self.dcx().struct_span_fatal(sp, msg) } #[rustc_lint_diagnostics] pub fn struct_span_fatal_with_code<S: Into<MultiSpan>>( @@ -437,18 +406,21 @@ impl Session { sp: S, msg: impl Into<DiagnosticMessage>, code: DiagnosticId, - ) -> DiagnosticBuilder<'_, !> { - self.diagnostic().struct_span_fatal_with_code(sp, msg, code) + ) -> DiagnosticBuilder<'_, FatalAbort> { + self.dcx().struct_span_fatal_with_code(sp, msg, code) } #[rustc_lint_diagnostics] - pub fn struct_fatal(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, !> { - self.diagnostic().struct_fatal(msg) + pub fn struct_fatal( + &self, + msg: impl Into<DiagnosticMessage>, + ) -> DiagnosticBuilder<'_, FatalAbort> { + self.dcx().struct_fatal(msg) } #[rustc_lint_diagnostics] #[track_caller] pub fn span_fatal<S: Into<MultiSpan>>(&self, sp: S, msg: impl Into<DiagnosticMessage>) -> ! { - self.diagnostic().span_fatal(sp, msg) + self.dcx().span_fatal(sp, msg) } #[rustc_lint_diagnostics] pub fn span_fatal_with_code<S: Into<MultiSpan>>( @@ -457,11 +429,11 @@ impl Session { msg: impl Into<DiagnosticMessage>, code: DiagnosticId, ) -> ! { - self.diagnostic().span_fatal_with_code(sp, msg, code) + self.dcx().span_fatal_with_code(sp, msg, code) } #[rustc_lint_diagnostics] pub fn fatal(&self, msg: impl Into<DiagnosticMessage>) -> ! { - self.diagnostic().fatal(msg) + self.dcx().fatal(msg) } #[rustc_lint_diagnostics] #[track_caller] @@ -470,7 +442,7 @@ impl Session { sp: S, msg: impl Into<DiagnosticMessage>, ) -> ErrorGuaranteed { - self.diagnostic().span_err(sp, msg) + self.dcx().span_err(sp, msg) } #[rustc_lint_diagnostics] pub fn span_err_with_code<S: Into<MultiSpan>>( @@ -479,19 +451,16 @@ impl Session { msg: impl Into<DiagnosticMessage>, code: DiagnosticId, ) -> ErrorGuaranteed { - self.diagnostic().span_err_with_code(sp, msg, code) + self.dcx().span_err_with_code(sp, msg, code) } #[rustc_lint_diagnostics] #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] pub fn err(&self, msg: impl Into<DiagnosticMessage>) -> ErrorGuaranteed { - self.diagnostic().err(msg) + self.dcx().err(msg) } #[track_caller] - pub fn create_err<'a>( - &'a self, - err: impl IntoDiagnostic<'a>, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + pub fn create_err<'a>(&'a self, err: impl IntoDiagnostic<'a>) -> DiagnosticBuilder<'a> { self.parse_sess.create_err(err) } #[track_caller] @@ -499,10 +468,10 @@ impl Session { &'a self, err: impl IntoDiagnostic<'a>, feature: Symbol, - ) -> DiagnosticBuilder<'a, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'a> { let mut err = self.parse_sess.create_err(err); if err.code.is_none() { - err.code = std::option::Option::Some(error_code!(E0658)); + err.code(error_code!(E0658)); } add_feature_diagnostics(&mut err, &self.parse_sess, feature); err @@ -525,44 +494,44 @@ impl Session { #[track_caller] pub fn create_note<'a>( &'a self, - note: impl IntoDiagnostic<'a, Noted>, - ) -> DiagnosticBuilder<'a, Noted> { + note: impl IntoDiagnostic<'a, ()>, + ) -> DiagnosticBuilder<'a, ()> { self.parse_sess.create_note(note) } #[track_caller] - pub fn emit_note<'a>(&'a self, note: impl IntoDiagnostic<'a, Noted>) -> Noted { + pub fn emit_note<'a>(&'a self, note: impl IntoDiagnostic<'a, ()>) { self.parse_sess.emit_note(note) } #[track_caller] pub fn create_fatal<'a>( &'a self, - fatal: impl IntoDiagnostic<'a, !>, - ) -> DiagnosticBuilder<'a, !> { + fatal: impl IntoDiagnostic<'a, FatalAbort>, + ) -> DiagnosticBuilder<'a, FatalAbort> { self.parse_sess.create_fatal(fatal) } #[track_caller] - pub fn emit_fatal<'a>(&'a self, fatal: impl IntoDiagnostic<'a, !>) -> ! { + pub fn emit_fatal<'a>(&'a self, fatal: impl IntoDiagnostic<'a, FatalAbort>) -> ! { self.parse_sess.emit_fatal(fatal) } #[inline] pub fn err_count(&self) -> usize { - self.diagnostic().err_count() + self.dcx().err_count() } pub fn has_errors(&self) -> Option<ErrorGuaranteed> { - self.diagnostic().has_errors() + self.dcx().has_errors() } pub fn has_errors_or_span_delayed_bugs(&self) -> Option<ErrorGuaranteed> { - self.diagnostic().has_errors_or_span_delayed_bugs() + self.dcx().has_errors_or_span_delayed_bugs() } pub fn is_compilation_going_to_fail(&self) -> Option<ErrorGuaranteed> { - self.diagnostic().is_compilation_going_to_fail() + self.dcx().is_compilation_going_to_fail() } pub fn abort_if_errors(&self) { - self.diagnostic().abort_if_errors(); + self.dcx().abort_if_errors(); } pub fn compile_status(&self) -> Result<(), ErrorGuaranteed> { - if let Some(reported) = self.diagnostic().has_errors_or_lint_errors() { - let _ = self.diagnostic().emit_stashed_diagnostics(); + if let Some(reported) = self.dcx().has_errors_or_lint_errors() { + let _ = self.dcx().emit_stashed_diagnostics(); Err(reported) } else { Ok(()) @@ -590,7 +559,7 @@ impl Session { #[allow(rustc::diagnostic_outside_of_impl)] #[track_caller] pub fn span_warn<S: Into<MultiSpan>>(&self, sp: S, msg: impl Into<DiagnosticMessage>) { - self.diagnostic().span_warn(sp, msg) + self.dcx().span_warn(sp, msg) } #[rustc_lint_diagnostics] @@ -602,14 +571,14 @@ impl Session { msg: impl Into<DiagnosticMessage>, code: DiagnosticId, ) { - self.diagnostic().span_warn_with_code(sp, msg, code) + self.dcx().span_warn_with_code(sp, msg, code) } #[rustc_lint_diagnostics] #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] pub fn warn(&self, msg: impl Into<DiagnosticMessage>) { - self.diagnostic().warn(msg) + self.dcx().warn(msg) } /// Ensures that compilation cannot succeed. @@ -634,7 +603,7 @@ impl Session { sp: S, msg: impl Into<DiagnosticMessage>, ) -> ErrorGuaranteed { - self.diagnostic().span_delayed_bug(sp, msg) + self.dcx().span_delayed_bug(sp, msg) } /// Used for code paths of expensive computations that should only take place when @@ -651,14 +620,14 @@ impl Session { return; } - self.diagnostic().good_path_delayed_bug(msg) + self.dcx().good_path_delayed_bug(msg) } #[rustc_lint_diagnostics] #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] pub fn note(&self, msg: impl Into<DiagnosticMessage>) { - self.diagnostic().note(msg) + self.dcx().note(msg) } #[track_caller] @@ -666,19 +635,19 @@ impl Session { #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] pub fn span_note<S: Into<MultiSpan>>(&self, sp: S, msg: impl Into<DiagnosticMessage>) { - self.diagnostic().span_note(sp, msg) + self.dcx().span_note(sp, msg) } #[rustc_lint_diagnostics] #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] pub fn struct_note(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> { - self.diagnostic().struct_note(msg) + self.dcx().struct_note(msg) } #[inline] - pub fn diagnostic(&self) -> &Handler { - &self.parse_sess.span_diagnostic + pub fn dcx(&self) -> &DiagCtxt { + &self.parse_sess.dcx } #[inline] @@ -881,7 +850,7 @@ impl Session { let mut fuel = self.optimization_fuel.lock(); ret = fuel.remaining != 0; if fuel.remaining == 0 && !fuel.out_of_fuel { - if self.diagnostic().can_emit_warnings() { + if self.dcx().can_emit_warnings() { // We only call `msg` in case we can actually emit warnings. // Otherwise, this could cause a `good_path_delayed_bug` to // trigger (issue #79546). @@ -1221,7 +1190,7 @@ impl Session { } pub fn teach(&self, code: &DiagnosticId) -> bool { - self.opts.unstable_opts.teach && self.diagnostic().must_teach(code) + self.opts.unstable_opts.teach && self.dcx().must_teach(code) } pub fn edition(&self) -> Edition { @@ -1357,7 +1326,7 @@ fn default_emitter( // JUSTIFICATION: literally session construction #[allow(rustc::bad_opt_access)] pub fn build_session( - early_handler: EarlyErrorHandler, + early_dcx: EarlyDiagCtxt, sopts: config::Options, io: CompilerIO, bundle: Option<Lrc<rustc_errors::FluentBundle>>, @@ -1387,13 +1356,13 @@ pub fn build_session( None => filesearch::get_or_default_sysroot().expect("Failed finding sysroot"), }; - let target_cfg = config::build_target_config(&early_handler, &sopts, target_override, &sysroot); + let target_cfg = config::build_target_config(&early_dcx, &sopts, target_override, &sysroot); let host_triple = TargetTriple::from_triple(config::host_triple()); let (host, target_warnings) = Target::search(&host_triple, &sysroot).unwrap_or_else(|e| { - early_handler.early_error(format!("Error loading host specification: {e}")) + early_dcx.early_fatal(format!("Error loading host specification: {e}")) }); for warning in target_warnings.warning_messages() { - early_handler.early_warn(warning) + early_dcx.early_warn(warning) } let loader = file_loader.unwrap_or_else(|| Box::new(RealFileLoader)); @@ -1416,15 +1385,15 @@ pub fn build_session( ); let emitter = default_emitter(&sopts, registry, source_map.clone(), bundle, fallback_bundle); - let mut span_diagnostic = Handler::with_emitter(emitter) - .with_flags(sopts.unstable_opts.diagnostic_handler_flags(can_emit_warnings)); + let mut dcx = DiagCtxt::with_emitter(emitter) + .with_flags(sopts.unstable_opts.dcx_flags(can_emit_warnings)); if let Some(ice_file) = ice_file { - span_diagnostic = span_diagnostic.with_ice_file(ice_file); + dcx = dcx.with_ice_file(ice_file); } - // Now that the proper handler has been constructed, drop the early handler - // to prevent accidental use. - drop(early_handler); + // Now that the proper handler has been constructed, drop early_dcx to + // prevent accidental use. + drop(early_dcx); let self_profiler = if let SwitchWithOptPath::Enabled(ref d) = sopts.unstable_opts.self_profile { @@ -1440,7 +1409,7 @@ pub fn build_session( match profiler { Ok(profiler) => Some(Arc::new(profiler)), Err(e) => { - span_diagnostic.emit_warning(errors::FailedToCreateProfiler { err: e.to_string() }); + dcx.emit_warning(errors::FailedToCreateProfiler { err: e.to_string() }); None } } @@ -1448,7 +1417,7 @@ pub fn build_session( None }; - let mut parse_sess = ParseSess::with_span_handler(span_diagnostic, source_map); + let mut parse_sess = ParseSess::with_dcx(dcx, source_map); parse_sess.assume_incomplete_release = sopts.unstable_opts.assume_incomplete_release; let host_triple = config::host_triple(); @@ -1725,69 +1694,69 @@ enum IncrCompSession { InvalidBecauseOfErrors { session_directory: PathBuf }, } -/// A wrapper around an [`Handler`] that is used for early error emissions. -pub struct EarlyErrorHandler { - handler: Handler, +/// A wrapper around an [`DiagCtxt`] that is used for early error emissions. +pub struct EarlyDiagCtxt { + dcx: DiagCtxt, } -impl EarlyErrorHandler { +impl EarlyDiagCtxt { pub fn new(output: ErrorOutputType) -> Self { let emitter = mk_emitter(output); - Self { handler: Handler::with_emitter(emitter) } + Self { dcx: DiagCtxt::with_emitter(emitter) } } pub fn abort_if_errors(&self) { - self.handler.abort_if_errors() + self.dcx.abort_if_errors() } - /// Swap out the underlying handler once we acquire the user's preference on error emission + /// Swap out the underlying dcx once we acquire the user's preference on error emission /// format. Any errors prior to that will cause an abort and all stashed diagnostics of the - /// previous handler will be emitted. + /// previous dcx will be emitted. pub fn abort_if_error_and_set_error_format(&mut self, output: ErrorOutputType) { - self.handler.abort_if_errors(); + self.dcx.abort_if_errors(); let emitter = mk_emitter(output); - self.handler = Handler::with_emitter(emitter); + self.dcx = DiagCtxt::with_emitter(emitter); } #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] pub fn early_note(&self, msg: impl Into<DiagnosticMessage>) { - self.handler.struct_note(msg).emit() + self.dcx.struct_note(msg).emit() } #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] pub fn early_help(&self, msg: impl Into<DiagnosticMessage>) { - self.handler.struct_help(msg).emit() + self.dcx.struct_help(msg).emit() } #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] #[must_use = "ErrorGuaranteed must be returned from `run_compiler` in order to exit with a non-zero status code"] - pub fn early_error_no_abort(&self, msg: impl Into<DiagnosticMessage>) -> ErrorGuaranteed { - self.handler.struct_err(msg).emit() + pub fn early_err(&self, msg: impl Into<DiagnosticMessage>) -> ErrorGuaranteed { + self.dcx.struct_err(msg).emit() } #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] - pub fn early_error(&self, msg: impl Into<DiagnosticMessage>) -> ! { - self.handler.struct_fatal(msg).emit() + pub fn early_fatal(&self, msg: impl Into<DiagnosticMessage>) -> ! { + self.dcx.struct_fatal(msg).emit() } #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] - pub fn early_struct_error( + pub fn early_struct_fatal( &self, msg: impl Into<DiagnosticMessage>, - ) -> DiagnosticBuilder<'_, !> { - self.handler.struct_fatal(msg) + ) -> DiagnosticBuilder<'_, FatalAbort> { + self.dcx.struct_fatal(msg) } #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] pub fn early_warn(&self, msg: impl Into<DiagnosticMessage>) { - self.handler.struct_warn(msg).emit() + self.dcx.struct_warn(msg).emit() } pub fn initialize_checked_jobserver(&self) { @@ -1795,10 +1764,7 @@ impl EarlyErrorHandler { jobserver::initialize_checked(|err| { #[allow(rustc::untranslatable_diagnostic)] #[allow(rustc::diagnostic_outside_of_impl)] - self.handler - .struct_warn(err) - .note("the build environment is likely misconfigured") - .emit() + self.dcx.struct_warn(err).note("the build environment is likely misconfigured").emit() }); } } diff --git a/compiler/rustc_smir/src/rustc_internal/internal.rs b/compiler/rustc_smir/src/rustc_internal/internal.rs index 63207200353..bbc98af45c0 100644 --- a/compiler/rustc_smir/src/rustc_internal/internal.rs +++ b/compiler/rustc_smir/src/rustc_internal/internal.rs @@ -7,6 +7,7 @@ use crate::rustc_smir::Tables; use rustc_middle::ty::{self as rustc_ty, Ty as InternalTy}; use rustc_span::Symbol; +use stable_mir::abi::Layout; use stable_mir::mir::alloc::AllocId; use stable_mir::mir::mono::{Instance, MonoItem, StaticDef}; use stable_mir::mir::{Mutability, Safety}; @@ -460,6 +461,14 @@ impl<'tcx> RustcInternal<'tcx> for Span { } } +impl<'tcx> RustcInternal<'tcx> for Layout { + type T = rustc_target::abi::Layout<'tcx>; + + fn internal(&self, tables: &mut Tables<'tcx>) -> Self::T { + tables.layouts[*self] + } +} + impl<'tcx, T> RustcInternal<'tcx> for &T where T: RustcInternal<'tcx>, diff --git a/compiler/rustc_smir/src/rustc_internal/mod.rs b/compiler/rustc_smir/src/rustc_internal/mod.rs index c3db9b358e8..4bac98909ad 100644 --- a/compiler/rustc_smir/src/rustc_internal/mod.rs +++ b/compiler/rustc_smir/src/rustc_internal/mod.rs @@ -12,6 +12,7 @@ use rustc_middle::ty::TyCtxt; use rustc_span::def_id::{CrateNum, DefId}; use rustc_span::Span; use scoped_tls::scoped_thread_local; +use stable_mir::abi::Layout; use stable_mir::ty::IndexedVal; use stable_mir::Error; use std::cell::Cell; @@ -136,6 +137,10 @@ impl<'tcx> Tables<'tcx> { pub(crate) fn static_def(&mut self, did: DefId) -> stable_mir::mir::mono::StaticDef { stable_mir::mir::mono::StaticDef(self.create_def_id(did)) } + + pub(crate) fn layout_id(&mut self, layout: rustc_target::abi::Layout<'tcx>) -> Layout { + self.layouts.create_or_fetch(layout) + } } pub fn crate_num(item: &stable_mir::Crate) -> CrateNum { @@ -180,6 +185,7 @@ where types: IndexMap::default(), instances: IndexMap::default(), constants: IndexMap::default(), + layouts: IndexMap::default(), })); stable_mir::compiler_interface::run(&tables, || init(&tables, f)) } diff --git a/compiler/rustc_smir/src/rustc_smir/context.rs b/compiler/rustc_smir/src/rustc_smir/context.rs index 2361a04a6d7..f84c466cc44 100644 --- a/compiler/rustc_smir/src/rustc_smir/context.rs +++ b/compiler/rustc_smir/src/rustc_smir/context.rs @@ -3,12 +3,19 @@ //! This trait is currently the main interface between the Rust compiler, //! and the `stable_mir` crate. +#![allow(rustc::usage_of_qualified_ty)] + +use rustc_abi::HasDataLayout; use rustc_middle::ty; +use rustc_middle::ty::layout::{ + FnAbiOf, FnAbiOfHelpers, HasParamEnv, HasTyCtxt, LayoutOf, LayoutOfHelpers, +}; use rustc_middle::ty::print::{with_forced_trimmed_paths, with_no_trimmed_paths}; use rustc_middle::ty::{ - GenericPredicates, Instance, ParamEnv, ScalarInt, TypeVisitableExt, ValTree, + GenericPredicates, Instance, List, ParamEnv, ScalarInt, TyCtxt, TypeVisitableExt, ValTree, }; use rustc_span::def_id::LOCAL_CRATE; +use stable_mir::abi::{FnAbi, Layout, LayoutShape}; use stable_mir::compiler_interface::Context; use stable_mir::mir::alloc::GlobalAlloc; use stable_mir::mir::mono::{InstanceDef, StaticDef}; @@ -280,7 +287,6 @@ impl<'tcx> Context for TablesWrapper<'tcx> { tables.tcx.mk_ty_from_kind(internal_kind).stable(&mut *tables) } - #[allow(rustc::usage_of_qualified_ty)] fn new_box_ty(&self, ty: stable_mir::ty::Ty) -> stable_mir::ty::Ty { let mut tables = self.0.borrow_mut(); let inner = ty.internal(&mut *tables); @@ -335,6 +341,18 @@ impl<'tcx> Context for TablesWrapper<'tcx> { instance.ty(tables.tcx, ParamEnv::reveal_all()).stable(&mut *tables) } + fn instance_args(&self, def: InstanceDef) -> GenericArgs { + let mut tables = self.0.borrow_mut(); + let instance = tables.instances[def]; + instance.args.stable(&mut *tables) + } + + fn instance_abi(&self, def: InstanceDef) -> Result<FnAbi, Error> { + let mut tables = self.0.borrow_mut(); + let instance = tables.instances[def]; + Ok(tables.fn_abi_of_instance(instance, List::empty())?.stable(&mut *tables)) + } + fn instance_def_id(&self, def: InstanceDef) -> stable_mir::DefId { let mut tables = self.0.borrow_mut(); let def_id = tables.instances[def].def_id(); @@ -473,6 +491,65 @@ impl<'tcx> Context for TablesWrapper<'tcx> { ) } } + + fn ty_layout(&self, ty: Ty) -> Result<Layout, Error> { + let mut tables = self.0.borrow_mut(); + let ty = ty.internal(&mut *tables); + let layout = tables.layout_of(ty)?.layout; + Ok(layout.stable(&mut *tables)) + } + + fn layout_shape(&self, id: Layout) -> LayoutShape { + let mut tables = self.0.borrow_mut(); + id.internal(&mut *tables).0.stable(&mut *tables) + } } pub struct TablesWrapper<'tcx>(pub RefCell<Tables<'tcx>>); + +/// Implement error handling for extracting function ABI information. +impl<'tcx> FnAbiOfHelpers<'tcx> for Tables<'tcx> { + type FnAbiOfResult = Result<&'tcx rustc_target::abi::call::FnAbi<'tcx, ty::Ty<'tcx>>, Error>; + + #[inline] + fn handle_fn_abi_err( + &self, + err: ty::layout::FnAbiError<'tcx>, + _span: rustc_span::Span, + fn_abi_request: ty::layout::FnAbiRequest<'tcx>, + ) -> Error { + Error::new(format!("Failed to get ABI for `{fn_abi_request:?}`: {err:?}")) + } +} + +impl<'tcx> LayoutOfHelpers<'tcx> for Tables<'tcx> { + type LayoutOfResult = Result<ty::layout::TyAndLayout<'tcx>, Error>; + + #[inline] + fn handle_layout_err( + &self, + err: ty::layout::LayoutError<'tcx>, + _span: rustc_span::Span, + ty: ty::Ty<'tcx>, + ) -> Error { + Error::new(format!("Failed to get layout for `{ty}`: {err}")) + } +} + +impl<'tcx> HasParamEnv<'tcx> for Tables<'tcx> { + fn param_env(&self) -> ty::ParamEnv<'tcx> { + ty::ParamEnv::reveal_all() + } +} + +impl<'tcx> HasTyCtxt<'tcx> for Tables<'tcx> { + fn tcx(&self) -> TyCtxt<'tcx> { + self.tcx + } +} + +impl<'tcx> HasDataLayout for Tables<'tcx> { + fn data_layout(&self) -> &rustc_abi::TargetDataLayout { + self.tcx.data_layout() + } +} diff --git a/compiler/rustc_smir/src/rustc_smir/convert/abi.rs b/compiler/rustc_smir/src/rustc_smir/convert/abi.rs new file mode 100644 index 00000000000..632e97b32f5 --- /dev/null +++ b/compiler/rustc_smir/src/rustc_smir/convert/abi.rs @@ -0,0 +1,242 @@ +//! Conversion of internal Rust compiler `rustc_target::abi` and `rustc_abi` items to stable ones. + +#![allow(rustc::usage_of_qualified_ty)] + +use crate::rustc_smir::{Stable, Tables}; +use rustc_middle::ty; +use rustc_target::abi::call::Conv; +use stable_mir::abi::{ + ArgAbi, CallConvention, FieldsShape, FnAbi, Layout, LayoutShape, PassMode, TagEncoding, + TyAndLayout, ValueAbi, VariantsShape, +}; +use stable_mir::ty::{Align, IndexedVal, Size, VariantIdx}; +use stable_mir::{opaque, Opaque}; + +impl<'tcx> Stable<'tcx> for rustc_target::abi::VariantIdx { + type T = VariantIdx; + fn stable(&self, _: &mut Tables<'tcx>) -> Self::T { + VariantIdx::to_val(self.as_usize()) + } +} + +impl<'tcx> Stable<'tcx> for rustc_abi::Endian { + type T = stable_mir::target::Endian; + + fn stable(&self, _tables: &mut Tables<'tcx>) -> Self::T { + match self { + rustc_abi::Endian::Little => stable_mir::target::Endian::Little, + rustc_abi::Endian::Big => stable_mir::target::Endian::Big, + } + } +} + +impl<'tcx> Stable<'tcx> for rustc_target::abi::TyAndLayout<'tcx, ty::Ty<'tcx>> { + type T = TyAndLayout; + + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + TyAndLayout { ty: self.ty.stable(tables), layout: self.layout.stable(tables) } + } +} + +impl<'tcx> Stable<'tcx> for rustc_target::abi::Layout<'tcx> { + type T = Layout; + + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + tables.layout_id(*self) + } +} + +impl<'tcx> Stable<'tcx> + for rustc_abi::LayoutS<rustc_target::abi::FieldIdx, rustc_target::abi::VariantIdx> +{ + type T = LayoutShape; + + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + LayoutShape { + fields: self.fields.stable(tables), + variants: self.variants.stable(tables), + abi: self.abi.stable(tables), + abi_align: self.align.abi.stable(tables), + size: self.size.stable(tables), + } + } +} + +impl<'tcx> Stable<'tcx> for rustc_target::abi::call::FnAbi<'tcx, ty::Ty<'tcx>> { + type T = FnAbi; + + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + assert!(self.args.len() >= self.fixed_count as usize); + assert!(!self.c_variadic || matches!(self.conv, Conv::C)); + FnAbi { + args: self.args.as_ref().stable(tables), + ret: self.ret.stable(tables), + fixed_count: self.fixed_count, + conv: self.conv.stable(tables), + c_variadic: self.c_variadic, + } + } +} + +impl<'tcx> Stable<'tcx> for rustc_target::abi::call::ArgAbi<'tcx, ty::Ty<'tcx>> { + type T = ArgAbi; + + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + ArgAbi { + ty: self.layout.ty.stable(tables), + layout: self.layout.layout.stable(tables), + mode: self.mode.stable(tables), + } + } +} + +impl<'tcx> Stable<'tcx> for rustc_target::abi::call::Conv { + type T = CallConvention; + + fn stable(&self, _tables: &mut Tables<'tcx>) -> Self::T { + match self { + Conv::C => CallConvention::C, + Conv::Rust => CallConvention::Rust, + Conv::Cold => CallConvention::Cold, + Conv::PreserveMost => CallConvention::PreserveMost, + Conv::PreserveAll => CallConvention::PreserveAll, + Conv::ArmAapcs => CallConvention::ArmAapcs, + Conv::CCmseNonSecureCall => CallConvention::CCmseNonSecureCall, + Conv::Msp430Intr => CallConvention::Msp430Intr, + Conv::PtxKernel => CallConvention::PtxKernel, + Conv::X86Fastcall => CallConvention::X86Fastcall, + Conv::X86Intr => CallConvention::X86Intr, + Conv::X86Stdcall => CallConvention::X86Stdcall, + Conv::X86ThisCall => CallConvention::X86ThisCall, + Conv::X86VectorCall => CallConvention::X86VectorCall, + Conv::X86_64SysV => CallConvention::X86_64SysV, + Conv::X86_64Win64 => CallConvention::X86_64Win64, + Conv::AmdGpuKernel => CallConvention::AmdGpuKernel, + Conv::AvrInterrupt => CallConvention::AvrInterrupt, + Conv::AvrNonBlockingInterrupt => CallConvention::AvrNonBlockingInterrupt, + Conv::RiscvInterrupt { .. } => CallConvention::RiscvInterrupt, + } + } +} + +impl<'tcx> Stable<'tcx> for rustc_target::abi::call::PassMode { + type T = PassMode; + + fn stable(&self, _tables: &mut Tables<'tcx>) -> Self::T { + match self { + rustc_target::abi::call::PassMode::Ignore => PassMode::Ignore, + rustc_target::abi::call::PassMode::Direct(attr) => PassMode::Direct(opaque(attr)), + rustc_target::abi::call::PassMode::Pair(first, second) => { + PassMode::Pair(opaque(first), opaque(second)) + } + rustc_target::abi::call::PassMode::Cast { pad_i32, cast } => { + PassMode::Cast { pad_i32: *pad_i32, cast: opaque(cast) } + } + rustc_target::abi::call::PassMode::Indirect { attrs, meta_attrs, on_stack } => { + PassMode::Indirect { + attrs: opaque(attrs), + meta_attrs: opaque(meta_attrs), + on_stack: *on_stack, + } + } + } + } +} + +impl<'tcx> Stable<'tcx> for rustc_abi::FieldsShape<rustc_target::abi::FieldIdx> { + type T = FieldsShape; + + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + match self { + rustc_abi::FieldsShape::Primitive => FieldsShape::Primitive, + rustc_abi::FieldsShape::Union(count) => FieldsShape::Union(*count), + rustc_abi::FieldsShape::Array { stride, count } => { + FieldsShape::Array { stride: stride.stable(tables), count: *count } + } + rustc_abi::FieldsShape::Arbitrary { offsets, .. } => { + FieldsShape::Arbitrary { offsets: offsets.iter().as_slice().stable(tables) } + } + } + } +} + +impl<'tcx> Stable<'tcx> + for rustc_abi::Variants<rustc_target::abi::FieldIdx, rustc_target::abi::VariantIdx> +{ + type T = VariantsShape; + + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + match self { + rustc_abi::Variants::Single { index } => { + VariantsShape::Single { index: index.stable(tables) } + } + rustc_abi::Variants::Multiple { tag, tag_encoding, tag_field, variants } => { + VariantsShape::Multiple { + tag: tag.stable(tables), + tag_encoding: tag_encoding.stable(tables), + tag_field: *tag_field, + variants: variants.iter().as_slice().stable(tables), + } + } + } + } +} + +impl<'tcx> Stable<'tcx> for rustc_abi::TagEncoding<rustc_target::abi::VariantIdx> { + type T = TagEncoding; + + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + match self { + rustc_abi::TagEncoding::Direct => TagEncoding::Direct, + rustc_abi::TagEncoding::Niche { untagged_variant, niche_variants, niche_start } => { + TagEncoding::Niche { + untagged_variant: untagged_variant.stable(tables), + niche_variants: niche_variants.stable(tables), + niche_start: *niche_start, + } + } + } + } +} + +impl<'tcx> Stable<'tcx> for rustc_abi::Abi { + type T = ValueAbi; + + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + match *self { + rustc_abi::Abi::Uninhabited => ValueAbi::Uninhabited, + rustc_abi::Abi::Scalar(scalar) => ValueAbi::Scalar(scalar.stable(tables)), + rustc_abi::Abi::ScalarPair(first, second) => { + ValueAbi::ScalarPair(first.stable(tables), second.stable(tables)) + } + rustc_abi::Abi::Vector { element, count } => { + ValueAbi::Vector { element: element.stable(tables), count } + } + rustc_abi::Abi::Aggregate { sized } => ValueAbi::Aggregate { sized }, + } + } +} + +impl<'tcx> Stable<'tcx> for rustc_abi::Size { + type T = Size; + + fn stable(&self, _tables: &mut Tables<'tcx>) -> Self::T { + self.bytes_usize() + } +} + +impl<'tcx> Stable<'tcx> for rustc_abi::Align { + type T = Align; + + fn stable(&self, _tables: &mut Tables<'tcx>) -> Self::T { + self.bytes() + } +} + +impl<'tcx> Stable<'tcx> for rustc_abi::Scalar { + type T = Opaque; + + fn stable(&self, _tables: &mut Tables<'tcx>) -> Self::T { + opaque(self) + } +} diff --git a/compiler/rustc_smir/src/rustc_smir/convert/mir.rs b/compiler/rustc_smir/src/rustc_smir/convert/mir.rs index 41ab4007a67..49bf2192f82 100644 --- a/compiler/rustc_smir/src/rustc_smir/convert/mir.rs +++ b/compiler/rustc_smir/src/rustc_smir/convert/mir.rs @@ -37,6 +37,7 @@ impl<'tcx> Stable<'tcx> for mir::Body<'tcx> { self.arg_count, self.var_debug_info.iter().map(|info| info.stable(tables)).collect(), self.spread_arg.stable(tables), + self.span.stable(tables), ) } } diff --git a/compiler/rustc_smir/src/rustc_smir/convert/mod.rs b/compiler/rustc_smir/src/rustc_smir/convert/mod.rs index 7021bdda735..5f505ac181c 100644 --- a/compiler/rustc_smir/src/rustc_smir/convert/mod.rs +++ b/compiler/rustc_smir/src/rustc_smir/convert/mod.rs @@ -1,10 +1,10 @@ //! Conversion of internal Rust compiler items to stable ones. use rustc_target::abi::FieldIdx; -use stable_mir::ty::{IndexedVal, VariantIdx}; use crate::rustc_smir::{Stable, Tables}; +mod abi; mod error; mod mir; mod ty; @@ -26,13 +26,6 @@ impl<'tcx> Stable<'tcx> for FieldIdx { } } -impl<'tcx> Stable<'tcx> for rustc_target::abi::VariantIdx { - type T = VariantIdx; - fn stable(&self, _: &mut Tables<'tcx>) -> Self::T { - VariantIdx::to_val(self.as_usize()) - } -} - impl<'tcx> Stable<'tcx> for rustc_hir::CoroutineSource { type T = stable_mir::mir::CoroutineSource; fn stable(&self, _: &mut Tables<'tcx>) -> Self::T { @@ -48,17 +41,26 @@ impl<'tcx> Stable<'tcx> for rustc_hir::CoroutineSource { impl<'tcx> Stable<'tcx> for rustc_hir::CoroutineKind { type T = stable_mir::mir::CoroutineKind; fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { - use rustc_hir::CoroutineKind; + use rustc_hir::{CoroutineDesugaring, CoroutineKind}; match self { - CoroutineKind::Async(source) => { - stable_mir::mir::CoroutineKind::Async(source.stable(tables)) + CoroutineKind::Desugared(CoroutineDesugaring::Async, source) => { + stable_mir::mir::CoroutineKind::Desugared( + stable_mir::mir::CoroutineDesugaring::Async, + source.stable(tables), + ) } - CoroutineKind::Gen(source) => { - stable_mir::mir::CoroutineKind::Gen(source.stable(tables)) + CoroutineKind::Desugared(CoroutineDesugaring::Gen, source) => { + stable_mir::mir::CoroutineKind::Desugared( + stable_mir::mir::CoroutineDesugaring::Gen, + source.stable(tables), + ) } CoroutineKind::Coroutine => stable_mir::mir::CoroutineKind::Coroutine, - CoroutineKind::AsyncGen(source) => { - stable_mir::mir::CoroutineKind::AsyncGen(source.stable(tables)) + CoroutineKind::Desugared(CoroutineDesugaring::AsyncGen, source) => { + stable_mir::mir::CoroutineKind::Desugared( + stable_mir::mir::CoroutineDesugaring::AsyncGen, + source.stable(tables), + ) } } } @@ -79,14 +81,3 @@ impl<'tcx> Stable<'tcx> for rustc_span::Span { tables.create_span(*self) } } - -impl<'tcx> Stable<'tcx> for rustc_abi::Endian { - type T = stable_mir::target::Endian; - - fn stable(&self, _tables: &mut Tables<'tcx>) -> Self::T { - match self { - rustc_abi::Endian::Little => stable_mir::target::Endian::Little, - rustc_abi::Endian::Big => stable_mir::target::Endian::Big, - } - } -} diff --git a/compiler/rustc_smir/src/rustc_smir/mod.rs b/compiler/rustc_smir/src/rustc_smir/mod.rs index ae6cf3fe3e8..e1ee40c0b60 100644 --- a/compiler/rustc_smir/src/rustc_smir/mod.rs +++ b/compiler/rustc_smir/src/rustc_smir/mod.rs @@ -12,9 +12,11 @@ use rustc_middle::mir; use rustc_middle::mir::interpret::AllocId; use rustc_middle::ty::{self, Instance, Ty, TyCtxt}; use rustc_span::def_id::{CrateNum, DefId, LOCAL_CRATE}; +use stable_mir::abi::Layout; use stable_mir::mir::mono::InstanceDef; use stable_mir::ty::{ConstId, Span}; -use stable_mir::ItemKind; +use stable_mir::{CtorKind, ItemKind}; +use std::ops::RangeInclusive; use tracing::debug; use crate::rustc_internal::IndexMap; @@ -32,6 +34,7 @@ pub struct Tables<'tcx> { pub(crate) types: IndexMap<Ty<'tcx>, stable_mir::ty::Ty>, pub(crate) instances: IndexMap<ty::Instance<'tcx>, InstanceDef>, pub(crate) constants: IndexMap<mir::Const<'tcx>, ConstId>, + pub(crate) layouts: IndexMap<rustc_target::abi::Layout<'tcx>, Layout>, } impl<'tcx> Tables<'tcx> { @@ -85,7 +88,6 @@ pub(crate) fn new_item_kind(kind: DefKind) -> ItemKind { | DefKind::Field | DefKind::LifetimeParam | DefKind::Impl { .. } - | DefKind::Ctor(_, _) | DefKind::GlobalAsm => { unreachable!("Not a valid item kind: {kind:?}"); } @@ -94,6 +96,8 @@ pub(crate) fn new_item_kind(kind: DefKind) -> ItemKind { ItemKind::Const } DefKind::Static(_) => ItemKind::Static, + DefKind::Ctor(_, rustc_hir::def::CtorKind::Const) => ItemKind::Ctor(CtorKind::Const), + DefKind::Ctor(_, rustc_hir::def::CtorKind::Fn) => ItemKind::Ctor(CtorKind::Fn), } } @@ -162,3 +166,13 @@ where (self.0.stable(tables), self.1.stable(tables)) } } + +impl<'tcx, T> Stable<'tcx> for RangeInclusive<T> +where + T: Stable<'tcx>, +{ + type T = RangeInclusive<T::T>; + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + RangeInclusive::new(self.start().stable(tables), self.end().stable(tables)) + } +} diff --git a/compiler/rustc_span/src/caching_source_map_view.rs b/compiler/rustc_span/src/caching_source_map_view.rs index fbfc5c22fcb..4c7029c4e52 100644 --- a/compiler/rustc_span/src/caching_source_map_view.rs +++ b/compiler/rustc_span/src/caching_source_map_view.rs @@ -117,7 +117,7 @@ impl<'sm> CachingSourceMapView<'sm> { self.time_stamp += 1; // Check if lo and hi are in the cached lines. - let lo_cache_idx = self.cache_entry_index(span_data.lo); + let lo_cache_idx: isize = self.cache_entry_index(span_data.lo); let hi_cache_idx = self.cache_entry_index(span_data.hi); if lo_cache_idx != -1 && hi_cache_idx != -1 { @@ -205,7 +205,9 @@ impl<'sm> CachingSourceMapView<'sm> { (lo_cache_idx as usize, oldest) } _ => { - panic!(); + panic!( + "the case of neither value being equal to -1 was handled above and the function returns." + ); } }; diff --git a/compiler/rustc_span/src/def_id.rs b/compiler/rustc_span/src/def_id.rs index b2d51ac6c0d..e397fab5459 100644 --- a/compiler/rustc_span/src/def_id.rs +++ b/compiler/rustc_span/src/def_id.rs @@ -114,8 +114,6 @@ impl DefPathHash { } /// Returns the crate-local part of the [DefPathHash]. - /// - /// Used for tests. #[inline] pub fn local_hash(&self) -> Hash64 { self.0.split().1 diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index cc3f0962d6c..8f64eed9a87 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -58,7 +58,7 @@ pub use hygiene::{DesugaringKind, ExpnKind, MacroKind}; pub use hygiene::{ExpnData, ExpnHash, ExpnId, LocalExpnId, SyntaxContext}; use rustc_data_structures::stable_hasher::HashingControls; pub mod def_id; -use def_id::{CrateNum, DefId, DefPathHash, LocalDefId, LOCAL_CRATE}; +use def_id::{CrateNum, DefId, DefPathHash, LocalDefId, StableCrateId, LOCAL_CRATE}; pub mod edit_distance; mod span_encoding; pub use span_encoding::{Span, DUMMY_SP}; @@ -1333,8 +1333,10 @@ pub struct SourceFile { pub non_narrow_chars: Vec<NonNarrowChar>, /// Locations of characters removed during normalization. pub normalized_pos: Vec<NormalizedPos>, - /// A hash of the filename, used for speeding up hashing in incremental compilation. - pub name_hash: Hash128, + /// A hash of the filename & crate-id, used for uniquely identifying source + /// files within the crate graph and for speeding up hashing in incremental + /// compilation. + pub stable_id: StableSourceFileId, /// Indicates which crate this `SourceFile` was imported from. pub cnum: CrateNum, } @@ -1352,7 +1354,7 @@ impl Clone for SourceFile { multibyte_chars: self.multibyte_chars.clone(), non_narrow_chars: self.non_narrow_chars.clone(), normalized_pos: self.normalized_pos.clone(), - name_hash: self.name_hash, + stable_id: self.stable_id, cnum: self.cnum, } } @@ -1426,7 +1428,7 @@ impl<S: Encoder> Encodable<S> for SourceFile { self.multibyte_chars.encode(s); self.non_narrow_chars.encode(s); - self.name_hash.encode(s); + self.stable_id.encode(s); self.normalized_pos.encode(s); self.cnum.encode(s); } @@ -1453,7 +1455,7 @@ impl<D: Decoder> Decodable<D> for SourceFile { }; let multibyte_chars: Vec<MultiByteChar> = Decodable::decode(d); let non_narrow_chars: Vec<NonNarrowChar> = Decodable::decode(d); - let name_hash = Decodable::decode(d); + let stable_id = Decodable::decode(d); let normalized_pos: Vec<NormalizedPos> = Decodable::decode(d); let cnum: CrateNum = Decodable::decode(d); SourceFile { @@ -1469,7 +1471,7 @@ impl<D: Decoder> Decodable<D> for SourceFile { multibyte_chars, non_narrow_chars, normalized_pos, - name_hash, + stable_id, cnum, } } @@ -1481,6 +1483,66 @@ impl fmt::Debug for SourceFile { } } +/// This is a [SourceFile] identifier that is used to correlate source files between +/// subsequent compilation sessions (which is something we need to do during +/// incremental compilation). +/// +/// It is a hash value (so we can efficiently consume it when stable-hashing +/// spans) that consists of the `FileName` and the `StableCrateId` of the crate +/// the source file is from. The crate id is needed because sometimes the +/// `FileName` is not unique within the crate graph (think `src/lib.rs`, for +/// example). +/// +/// The way the crate-id part is handled is a bit special: source files of the +/// local crate are hashed as `(filename, None)`, while source files from +/// upstream crates have a hash of `(filename, Some(stable_crate_id))`. This +/// is because SourceFiles for the local crate are allocated very early in the +/// compilation process when the `StableCrateId` is not yet known. If, due to +/// some refactoring of the compiler, the `StableCrateId` of the local crate +/// were to become available, it would be better to uniformely make this a +/// hash of `(filename, stable_crate_id)`. +/// +/// When `SourceFile`s are exported in crate metadata, the `StableSourceFileId` +/// is updated to incorporate the `StableCrateId` of the exporting crate. +#[derive( + Debug, + Clone, + Copy, + Hash, + PartialEq, + Eq, + HashStable_Generic, + Encodable, + Decodable, + Default, + PartialOrd, + Ord +)] +pub struct StableSourceFileId(Hash128); + +impl StableSourceFileId { + fn from_filename_in_current_crate(filename: &FileName) -> Self { + Self::from_filename_and_stable_crate_id(filename, None) + } + + pub fn from_filename_for_export( + filename: &FileName, + local_crate_stable_crate_id: StableCrateId, + ) -> Self { + Self::from_filename_and_stable_crate_id(filename, Some(local_crate_stable_crate_id)) + } + + fn from_filename_and_stable_crate_id( + filename: &FileName, + stable_crate_id: Option<StableCrateId>, + ) -> Self { + let mut hasher = StableHasher::new(); + filename.hash(&mut hasher); + stable_crate_id.hash(&mut hasher); + StableSourceFileId(hasher.finish()) + } +} + impl SourceFile { pub fn new( name: FileName, @@ -1491,11 +1553,7 @@ impl SourceFile { let src_hash = SourceFileHash::new(hash_kind, &src); let normalized_pos = normalize_src(&mut src); - let name_hash = { - let mut hasher: StableHasher = StableHasher::new(); - name.hash(&mut hasher); - hasher.finish() - }; + let stable_id = StableSourceFileId::from_filename_in_current_crate(&name); let source_len = src.len(); let source_len = u32::try_from(source_len).map_err(|_| OffsetOverflowError)?; @@ -1513,7 +1571,7 @@ impl SourceFile { multibyte_chars, non_narrow_chars, normalized_pos, - name_hash, + stable_id, cnum: LOCAL_CRATE, }) } @@ -2213,7 +2271,7 @@ where }; Hash::hash(&TAG_VALID_SPAN, hasher); - Hash::hash(&file.name_hash, hasher); + Hash::hash(&file.stable_id, hasher); // Hash both the length and the end location (line/column) of a span. If we // hash only the length, for example, then two otherwise equal spans with diff --git a/compiler/rustc_span/src/source_map.rs b/compiler/rustc_span/src/source_map.rs index cb10e6bf2ba..c61dbcaae95 100644 --- a/compiler/rustc_span/src/source_map.rs +++ b/compiler/rustc_span/src/source_map.rs @@ -13,7 +13,6 @@ use crate::*; use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::sync::{IntoDynSyncSend, MappedReadGuard, ReadGuard, RwLock}; use std::fs; -use std::hash::Hash; use std::io::{self, BorrowedBuf, Read}; use std::path::{self}; @@ -152,45 +151,6 @@ impl FileLoader for RealFileLoader { } } -/// This is a [SourceFile] identifier that is used to correlate source files between -/// subsequent compilation sessions (which is something we need to do during -/// incremental compilation). -/// -/// The [StableSourceFileId] also contains the CrateNum of the crate the source -/// file was originally parsed for. This way we get two separate entries in -/// the [SourceMap] if the same file is part of both the local and an upstream -/// crate. Trying to only have one entry for both cases is problematic because -/// at the point where we discover that there's a local use of the file in -/// addition to the upstream one, we might already have made decisions based on -/// the assumption that it's an upstream file. Treating the two files as -/// different has no real downsides. -#[derive(Copy, Clone, PartialEq, Eq, Hash, Encodable, Decodable, Debug)] -pub struct StableSourceFileId { - /// A hash of the source file's [`FileName`]. This is hash so that it's size - /// is more predictable than if we included the actual [`FileName`] value. - pub file_name_hash: Hash64, - - /// The [`CrateNum`] of the crate this source file was originally parsed for. - /// We cannot include this information in the hash because at the time - /// of hashing we don't have the context to map from the [`CrateNum`]'s numeric - /// value to a `StableCrateId`. - pub cnum: CrateNum, -} - -// FIXME: we need a more globally consistent approach to the problem solved by -// StableSourceFileId, perhaps built atop source_file.name_hash. -impl StableSourceFileId { - pub fn new(source_file: &SourceFile) -> StableSourceFileId { - StableSourceFileId::new_from_name(&source_file.name, source_file.cnum) - } - - fn new_from_name(name: &FileName, cnum: CrateNum) -> StableSourceFileId { - let mut hasher = StableHasher::new(); - name.hash(&mut hasher); - StableSourceFileId { file_name_hash: hasher.finish(), cnum } - } -} - // _____________________________________________________________________________ // SourceMap // @@ -320,17 +280,17 @@ impl SourceMap { // be empty, so the working directory will be used. let (filename, _) = self.path_mapping.map_filename_prefix(&filename); - let file_id = StableSourceFileId::new_from_name(&filename, LOCAL_CRATE); - match self.source_file_by_stable_id(file_id) { + let stable_id = StableSourceFileId::from_filename_in_current_crate(&filename); + match self.source_file_by_stable_id(stable_id) { Some(lrc_sf) => Ok(lrc_sf), None => { let source_file = SourceFile::new(filename, src, self.hash_kind)?; // Let's make sure the file_id we generated above actually matches // the ID we generate for the SourceFile we just created. - debug_assert_eq!(StableSourceFileId::new(&source_file), file_id); + debug_assert_eq!(source_file.stable_id, stable_id); - self.register_source_file(file_id, source_file) + self.register_source_file(stable_id, source_file) } } } @@ -343,7 +303,7 @@ impl SourceMap { &self, filename: FileName, src_hash: SourceFileHash, - name_hash: Hash128, + stable_id: StableSourceFileId, source_len: u32, cnum: CrateNum, file_local_lines: FreezeLock<SourceFileLines>, @@ -368,12 +328,11 @@ impl SourceMap { multibyte_chars, non_narrow_chars, normalized_pos, - name_hash, + stable_id, cnum, }; - let file_id = StableSourceFileId::new(&source_file); - self.register_source_file(file_id, source_file) + self.register_source_file(stable_id, source_file) .expect("not enough address space for imported source file") } diff --git a/compiler/rustc_span/src/source_map/tests.rs b/compiler/rustc_span/src/source_map/tests.rs index 113ca493d36..130522a302d 100644 --- a/compiler/rustc_span/src/source_map/tests.rs +++ b/compiler/rustc_span/src/source_map/tests.rs @@ -234,14 +234,14 @@ fn t10() { multibyte_chars, non_narrow_chars, normalized_pos, - name_hash, + stable_id, .. } = (*src_file).clone(); let imported_src_file = sm.new_imported_source_file( name, src_hash, - name_hash, + stable_id, source_len.to_u32(), CrateNum::new(0), FreezeLock::new(lines.read().clone()), diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 0333b5f04c3..95106cc64c1 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -426,7 +426,9 @@ symbols! { async_closure, async_fn_in_trait, async_fn_track_caller, + async_for_loop, async_iterator, + async_iterator_poll_next, atomic, atomic_mod, atomics, @@ -893,6 +895,7 @@ symbols! { instruction_set, integer_: "integer", // underscore to avoid clashing with the function `sym::integer` below integral, + into_async_iter_into_iter, into_future, into_iter, intra_doc_pointers, diff --git a/compiler/rustc_symbol_mangling/src/errors.rs b/compiler/rustc_symbol_mangling/src/errors.rs index 2e081e55531..06a2b3ca9c4 100644 --- a/compiler/rustc_symbol_mangling/src/errors.rs +++ b/compiler/rustc_symbol_mangling/src/errors.rs @@ -1,6 +1,6 @@ //! Errors emitted by symbol_mangling. -use rustc_errors::{ErrorGuaranteed, IntoDiagnostic}; +use rustc_errors::{DiagCtxt, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic, Level}; use rustc_span::Span; use std::fmt; @@ -13,15 +13,12 @@ pub struct TestOutput { // This diagnostic doesn't need translation because (a) it doesn't contain any // natural language, and (b) it's only used in tests. So we construct it // manually and avoid the fluent machinery. -impl IntoDiagnostic<'_> for TestOutput { - fn into_diagnostic( - self, - handler: &'_ rustc_errors::Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for TestOutput { + fn into_diagnostic(self, dcx: &'_ DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> { let TestOutput { span, kind, content } = self; #[allow(rustc::untranslatable_diagnostic)] - let mut diag = handler.struct_err(format!("{kind}({content})")); + let mut diag = DiagnosticBuilder::new(dcx, level, format!("{kind}({content})")); diag.set_span(span); diag } diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index a78df69f187..4789a9be151 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -1493,6 +1493,7 @@ supported_targets! { ("mips64-unknown-linux-muslabi64", mips64_unknown_linux_muslabi64), ("mips64el-unknown-linux-muslabi64", mips64el_unknown_linux_muslabi64), ("hexagon-unknown-linux-musl", hexagon_unknown_linux_musl), + ("hexagon-unknown-none-elf", hexagon_unknown_none_elf), ("mips-unknown-linux-uclibc", mips_unknown_linux_uclibc), ("mipsel-unknown-linux-uclibc", mipsel_unknown_linux_uclibc), @@ -1578,6 +1579,7 @@ supported_targets! { ("armv7k-apple-watchos", armv7k_apple_watchos), ("arm64_32-apple-watchos", arm64_32_apple_watchos), ("x86_64-apple-watchos-sim", x86_64_apple_watchos_sim), + ("aarch64-apple-watchos", aarch64_apple_watchos), ("aarch64-apple-watchos-sim", aarch64_apple_watchos_sim), ("armebv7r-none-eabi", armebv7r_none_eabi), @@ -1589,6 +1591,7 @@ supported_targets! { ("sparcv9-sun-solaris", sparcv9_sun_solaris), ("x86_64-unknown-illumos", x86_64_unknown_illumos), + ("aarch64-unknown-illumos", aarch64_unknown_illumos), ("x86_64-pc-windows-gnu", x86_64_pc_windows_gnu), ("i686-pc-windows-gnu", i686_pc_windows_gnu), diff --git a/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos.rs b/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos.rs new file mode 100644 index 00000000000..c2cf2c4e96d --- /dev/null +++ b/compiler/rustc_target/src/spec/targets/aarch64_apple_watchos.rs @@ -0,0 +1,19 @@ +use crate::spec::base::apple::{opts, Arch}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let base = opts("watchos", Arch::Arm64); + Target { + llvm_target: "aarch64-apple-watchos".into(), + pointer_width: 64, + data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + features: "+v8a,+neon,+fp-armv8,+apple-a7".into(), + max_atomic_width: Some(128), + dynamic_linking: false, + position_independent_executables: true, + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/targets/aarch64_unknown_illumos.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_illumos.rs new file mode 100644 index 00000000000..634cb063a49 --- /dev/null +++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_illumos.rs @@ -0,0 +1,19 @@ +use crate::spec::{base, Cc, LinkerFlavor, SanitizerSet, Target}; + +pub fn target() -> Target { + let mut base = base::illumos::opts(); + base.add_pre_link_args(LinkerFlavor::Unix(Cc::Yes), &["-std=c99"]); + base.max_atomic_width = Some(128); + base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI; + base.features = "+v8a".into(); + + Target { + // LLVM does not currently have a separate illumos target, + // so we still pass Solaris to it + llvm_target: "aarch64-unknown-solaris2.11".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/targets/arm64e_apple_ios.rs b/compiler/rustc_target/src/spec/targets/arm64e_apple_ios.rs index 8daa78a02ed..38657d7f1df 100644 --- a/compiler/rustc_target/src/spec/targets/arm64e_apple_ios.rs +++ b/compiler/rustc_target/src/spec/targets/arm64e_apple_ios.rs @@ -7,23 +7,18 @@ pub fn target() -> Target { base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::THREAD; Target { + // Clang automatically chooses a more specific target based on + // IPHONEOS_DEPLOYMENT_TARGET. + // This is required for the target to pick the right + // MACH-O commands, so we do too. llvm_target: ios_llvm_target(arch).into(), pointer_width: 64, data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(), arch: arch.target_arch(), options: TargetOptions { - features: "+neon,+fp-armv8,+apple-a12,+v8.3a,+paca,+pacg".into(), + features: "+neon,+fp-armv8,+apple-a12,+v8.3a,+pauth".into(), max_atomic_width: Some(128), - forces_embed_bitcode: true, frame_pointer: FramePointer::NonLeaf, - bitcode_llvm_cmdline: "-triple\0\ - arm64e-apple-ios14.1.0\0\ - -emit-obj\0\ - -disable-llvm-passes\0\ - -target-abi\0\ - darwinpcs\0\ - -Os\0" - .into(), ..base }, } diff --git a/compiler/rustc_target/src/spec/targets/hexagon_unknown_none_elf.rs b/compiler/rustc_target/src/spec/targets/hexagon_unknown_none_elf.rs new file mode 100644 index 00000000000..205f195a701 --- /dev/null +++ b/compiler/rustc_target/src/spec/targets/hexagon_unknown_none_elf.rs @@ -0,0 +1,27 @@ +use crate::spec::{PanicStrategy, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "hexagon-unknown-none-elf".into(), + pointer_width: 32, + data_layout: concat!( + "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32", + ":32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32", + ":32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048", + ":2048:2048" + ) + .into(), + arch: "hexagon".into(), + + options: TargetOptions { + cpu: "hexagonv60".into(), + panic_strategy: PanicStrategy::Abort, + dynamic_linking: true, + features: "-small-data,+hvx-length128b".into(), + max_atomic_width: Some(32), + emit_debug_gdb_scripts: false, + c_enum_min_bits: Some(8), + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/tests/tests_impl.rs b/compiler/rustc_target/src/spec/tests/tests_impl.rs index 257867b1b80..3fefd60f7cd 100644 --- a/compiler/rustc_target/src/spec/tests/tests_impl.rs +++ b/compiler/rustc_target/src/spec/tests/tests_impl.rs @@ -116,7 +116,8 @@ impl Target { // Check dynamic linking stuff // BPF: when targeting user space vms (like rbpf), those can load dynamic libraries. - if self.os == "none" && self.arch != "bpf" { + // hexagon: when targeting QuRT, that OS can load dynamic libraries. + if self.os == "none" && (self.arch != "bpf" && self.arch != "hexagon") { assert!(!self.dynamic_linking); } if self.only_cdylib diff --git a/compiler/rustc_trait_selection/src/errors.rs b/compiler/rustc_trait_selection/src/errors.rs index c1fb287d63e..bea6fbd6ac5 100644 --- a/compiler/rustc_trait_selection/src/errors.rs +++ b/compiler/rustc_trait_selection/src/errors.rs @@ -1,7 +1,7 @@ use crate::fluent_generated as fluent; use rustc_errors::{ - AddToDiagnostic, Applicability, Diagnostic, ErrorGuaranteed, Handler, IntoDiagnostic, - SubdiagnosticMessage, + AddToDiagnostic, Applicability, DiagCtxt, Diagnostic, DiagnosticBuilder, EmissionGuarantee, + IntoDiagnostic, Level, SubdiagnosticMessage, }; use rustc_macros::Diagnostic; use rustc_middle::ty::{self, ClosureKind, PolyTraitRef, Ty}; @@ -57,13 +57,15 @@ pub struct NegativePositiveConflict<'tcx> { pub positive_impl_span: Result<Span, Symbol>, } -impl IntoDiagnostic<'_> for NegativePositiveConflict<'_> { +impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for NegativePositiveConflict<'_> { #[track_caller] fn into_diagnostic( self, - handler: &Handler, - ) -> rustc_errors::DiagnosticBuilder<'_, ErrorGuaranteed> { - let mut diag = handler.struct_err(fluent::trait_selection_negative_positive_conflict); + dcx: &DiagCtxt, + level: Level, + ) -> rustc_errors::DiagnosticBuilder<'_, G> { + let mut diag = + DiagnosticBuilder::new(dcx, level, fluent::trait_selection_negative_positive_conflict); diag.set_arg("trait_desc", self.trait_desc.print_only_trait_path().to_string()); diag.set_arg( "self_desc", diff --git a/compiler/rustc_trait_selection/src/solve/alias_relate.rs b/compiler/rustc_trait_selection/src/solve/alias_relate.rs index 2e99854ddc6..626569fb40f 100644 --- a/compiler/rustc_trait_selection/src/solve/alias_relate.rs +++ b/compiler/rustc_trait_selection/src/solve/alias_relate.rs @@ -11,7 +11,7 @@ //! * bidirectional-normalizes-to: If `A` and `B` are both projections, and both //! may apply, then we can compute the "intersection" of both normalizes-to by //! performing them together. This is used specifically to resolve ambiguities. -use super::EvalCtxt; +use super::{EvalCtxt, GoalSource}; use rustc_infer::infer::DefineOpaqueTypes; use rustc_infer::traits::query::NoSolution; use rustc_middle::traits::solve::{Certainty, Goal, QueryResult}; @@ -89,11 +89,10 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { ty::TermKind::Const(_) => { if let Some(alias) = term.to_alias_ty(self.tcx()) { let term = self.next_term_infer_of_kind(term); - self.add_goal(Goal::new( - self.tcx(), - param_env, - ty::NormalizesTo { alias, term }, - )); + self.add_goal( + GoalSource::Misc, + Goal::new(self.tcx(), param_env, ty::NormalizesTo { alias, term }), + ); self.try_evaluate_added_goals()?; Ok(Some(self.resolve_vars_if_possible(term))) } else { @@ -109,7 +108,10 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { opaque: ty::AliasTy<'tcx>, term: ty::Term<'tcx>, ) -> QueryResult<'tcx> { - self.add_goal(Goal::new(self.tcx(), param_env, ty::NormalizesTo { alias: opaque, term })); + self.add_goal( + GoalSource::Misc, + Goal::new(self.tcx(), param_env, ty::NormalizesTo { alias: opaque, term }), + ); self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) } diff --git a/compiler/rustc_trait_selection/src/solve/assembly/mod.rs b/compiler/rustc_trait_selection/src/solve/assembly/mod.rs index 62d62bdfd11..81a766f24b0 100644 --- a/compiler/rustc_trait_selection/src/solve/assembly/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/assembly/mod.rs @@ -1,6 +1,7 @@ //! Code shared by trait and projection goals for candidate assembly. use super::{EvalCtxt, SolverMode}; +use crate::solve::GoalSource; use crate::traits::coherence; use rustc_hir::def_id::DefId; use rustc_infer::traits::query::NoSolution; @@ -62,7 +63,9 @@ pub(super) trait GoalKind<'tcx>: requirements: impl IntoIterator<Item = Goal<'tcx, ty::Predicate<'tcx>>>, ) -> QueryResult<'tcx> { Self::probe_and_match_goal_against_assumption(ecx, goal, assumption, |ecx| { - ecx.add_goals(requirements); + // FIXME(-Znext-solver=coinductive): check whether this should be + // `GoalSource::ImplWhereBound` for any caller. + ecx.add_goals(GoalSource::Misc, requirements); ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) }) } @@ -94,12 +97,16 @@ pub(super) trait GoalKind<'tcx>: let ty::Dynamic(bounds, _, _) = *goal.predicate.self_ty().kind() else { bug!("expected object type in `consider_object_bound_candidate`"); }; - ecx.add_goals(structural_traits::predicates_for_object_candidate( - ecx, - goal.param_env, - goal.predicate.trait_ref(tcx), - bounds, - )); + // FIXME(-Znext-solver=coinductive): Should this be `GoalSource::ImplWhereBound`? + ecx.add_goals( + GoalSource::Misc, + structural_traits::predicates_for_object_candidate( + ecx, + goal.param_env, + goal.predicate.trait_ref(tcx), + bounds, + ), + ); ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) }) } @@ -364,7 +371,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { let normalized_ty = ecx.next_ty_infer(); let normalizes_to_goal = goal.with(tcx, ty::NormalizesTo { alias, term: normalized_ty.into() }); - ecx.add_goal(normalizes_to_goal); + ecx.add_goal(GoalSource::Misc, normalizes_to_goal); if let Err(NoSolution) = ecx.try_evaluate_added_goals() { debug!("self type normalization failed"); return vec![]; diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs index 7457ba837f5..ecdae2521b9 100644 --- a/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs +++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs @@ -94,20 +94,6 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { ); let certainty = certainty.unify_with(goals_certainty); - if let Certainty::OVERFLOW = certainty { - // If we have overflow, it's probable that we're substituting a type - // into itself infinitely and any partial substitutions in the query - // response are probably not useful anyways, so just return an empty - // query response. - // - // This may prevent us from potentially useful inference, e.g. - // 2 candidates, one ambiguous and one overflow, which both - // have the same inference constraints. - // - // Changing this to retain some constraints in the future - // won't be a breaking change, so this is good enough for now. - return Ok(self.make_ambiguous_response_no_constraints(MaybeCause::Overflow)); - } let var_values = self.var_values; let external_constraints = self.compute_external_query_constraints()?; diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs index cafb858794a..76c50a11102 100644 --- a/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs @@ -23,14 +23,15 @@ use rustc_middle::ty::{ use rustc_session::config::DumpSolverProofTree; use rustc_span::DUMMY_SP; use std::io::Write; +use std::iter; use std::ops::ControlFlow; use crate::traits::vtable::{count_own_vtable_entries, prepare_vtable_segments, VtblSegment}; use super::inspect::ProofTreeBuilder; -use super::SolverMode; use super::{search_graph, GoalEvaluationKind}; use super::{search_graph::SearchGraph, Goal}; +use super::{GoalSource, SolverMode}; pub use select::InferCtxtSelectExt; mod canonical; @@ -105,7 +106,7 @@ pub(super) struct NestedGoals<'tcx> { /// can be unsound with more powerful coinduction in the future. pub(super) normalizes_to_hack_goal: Option<Goal<'tcx, ty::NormalizesTo<'tcx>>>, /// The rest of the goals which have not yet processed or remain ambiguous. - pub(super) goals: Vec<Goal<'tcx, ty::Predicate<'tcx>>>, + pub(super) goals: Vec<(GoalSource, Goal<'tcx, ty::Predicate<'tcx>>)>, } impl<'tcx> NestedGoals<'tcx> { @@ -156,7 +157,7 @@ impl<'tcx> InferCtxtEvalExt<'tcx> for InferCtxt<'tcx> { Option<inspect::GoalEvaluation<'tcx>>, ) { EvalCtxt::enter_root(self, generate_proof_tree, |ecx| { - ecx.evaluate_goal(GoalEvaluationKind::Root, goal) + ecx.evaluate_goal(GoalEvaluationKind::Root, GoalSource::Misc, goal) }) } } @@ -334,6 +335,7 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { fn evaluate_goal( &mut self, goal_evaluation_kind: GoalEvaluationKind, + source: GoalSource, goal: Goal<'tcx, ty::Predicate<'tcx>>, ) -> Result<(bool, Certainty, Vec<Goal<'tcx, ty::Predicate<'tcx>>>), NoSolution> { let (orig_values, canonical_goal) = self.canonicalize_goal(goal); @@ -353,13 +355,13 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { Ok(response) => response, }; - let has_changed = !canonical_response.value.var_values.is_identity_modulo_regions() - || !canonical_response.value.external_constraints.opaque_types.is_empty(); - let (certainty, nested_goals) = match self.instantiate_and_apply_query_response( - goal.param_env, - orig_values, - canonical_response, - ) { + let (certainty, has_changed, nested_goals) = match self + .instantiate_response_discarding_overflow( + goal.param_env, + source, + orig_values, + canonical_response, + ) { Err(e) => { self.inspect.goal_evaluation(goal_evaluation); return Err(e); @@ -386,6 +388,44 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { Ok((has_changed, certainty, nested_goals)) } + fn instantiate_response_discarding_overflow( + &mut self, + param_env: ty::ParamEnv<'tcx>, + source: GoalSource, + original_values: Vec<ty::GenericArg<'tcx>>, + response: CanonicalResponse<'tcx>, + ) -> Result<(Certainty, bool, Vec<Goal<'tcx, ty::Predicate<'tcx>>>), NoSolution> { + // The old solver did not evaluate nested goals when normalizing. + // It returned the selection constraints allowing a `Projection` + // obligation to not hold in coherence while avoiding the fatal error + // from overflow. + // + // We match this behavior here by considering all constraints + // from nested goals which are not from where-bounds. We will already + // need to track which nested goals are required by impl where-bounds + // for coinductive cycles, so we simply reuse that here. + // + // While we could consider overflow constraints in more cases, this should + // not be necessary for backcompat and results in better perf. It also + // avoids a potential inconsistency which would otherwise require some + // tracking for root goals as well. See #119071 for an example. + let keep_overflow_constraints = || { + self.search_graph.current_goal_is_normalizes_to() + && source != GoalSource::ImplWhereBound + }; + + if response.value.certainty == Certainty::OVERFLOW && !keep_overflow_constraints() { + Ok((Certainty::OVERFLOW, false, Vec::new())) + } else { + let has_changed = !response.value.var_values.is_identity_modulo_regions() + || !response.value.external_constraints.opaque_types.is_empty(); + + let (certainty, nested_goals) = + self.instantiate_and_apply_query_response(param_env, original_values, response)?; + Ok((certainty, has_changed, nested_goals)) + } + } + fn compute_goal(&mut self, goal: Goal<'tcx, ty::Predicate<'tcx>>) -> QueryResult<'tcx> { let Goal { param_env, predicate } = goal; let kind = predicate.kind(); @@ -439,7 +479,7 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { } else { let kind = self.infcx.instantiate_binder_with_placeholders(kind); let goal = goal.with(self.tcx(), ty::Binder::dummy(kind)); - self.add_goal(goal); + self.add_goal(GoalSource::Misc, goal); self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) } } @@ -488,6 +528,13 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { let mut goals = core::mem::replace(&mut self.nested_goals, NestedGoals::new()); self.inspect.evaluate_added_goals_loop_start(); + + fn with_misc_source<'tcx>( + it: impl IntoIterator<Item = Goal<'tcx, ty::Predicate<'tcx>>>, + ) -> impl Iterator<Item = (GoalSource, Goal<'tcx, ty::Predicate<'tcx>>)> { + iter::zip(iter::repeat(GoalSource::Misc), it) + } + // If this loop did not result in any progress, what's our final certainty. let mut unchanged_certainty = Some(Certainty::Yes); if let Some(goal) = goals.normalizes_to_hack_goal.take() { @@ -501,9 +548,10 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { let (_, certainty, instantiate_goals) = self.evaluate_goal( GoalEvaluationKind::Nested { is_normalizes_to_hack: IsNormalizesToHack::Yes }, + GoalSource::Misc, unconstrained_goal, )?; - self.nested_goals.goals.extend(instantiate_goals); + self.nested_goals.goals.extend(with_misc_source(instantiate_goals)); // Finally, equate the goal's RHS with the unconstrained var. // We put the nested goals from this into goals instead of @@ -512,7 +560,7 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { // matters in practice, though. let eq_goals = self.eq_and_get_goals(goal.param_env, goal.predicate.term, unconstrained_rhs)?; - goals.goals.extend(eq_goals); + goals.goals.extend(with_misc_source(eq_goals)); // We only look at the `projection_ty` part here rather than // looking at the "has changed" return from evaluate_goal, @@ -533,12 +581,13 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { } } - for goal in goals.goals.drain(..) { + for (source, goal) in goals.goals.drain(..) { let (has_changed, certainty, instantiate_goals) = self.evaluate_goal( GoalEvaluationKind::Nested { is_normalizes_to_hack: IsNormalizesToHack::No }, + source, goal, )?; - self.nested_goals.goals.extend(instantiate_goals); + self.nested_goals.goals.extend(with_misc_source(instantiate_goals)); if has_changed { unchanged_certainty = None; } @@ -546,7 +595,7 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { match certainty { Certainty::Yes => {} Certainty::Maybe(_) => { - self.nested_goals.goals.push(goal); + self.nested_goals.goals.push((source, goal)); unchanged_certainty = unchanged_certainty.map(|c| c.unify_with(certainty)); } } @@ -670,7 +719,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { .at(&ObligationCause::dummy(), param_env) .eq(DefineOpaqueTypes::No, lhs, rhs) .map(|InferOk { value: (), obligations }| { - self.add_goals(obligations.into_iter().map(|o| o.into())); + self.add_goals(GoalSource::Misc, obligations.into_iter().map(|o| o.into())); }) .map_err(|e| { debug!(?e, "failed to equate"); @@ -689,7 +738,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { .at(&ObligationCause::dummy(), param_env) .sub(DefineOpaqueTypes::No, sub, sup) .map(|InferOk { value: (), obligations }| { - self.add_goals(obligations.into_iter().map(|o| o.into())); + self.add_goals(GoalSource::Misc, obligations.into_iter().map(|o| o.into())); }) .map_err(|e| { debug!(?e, "failed to subtype"); @@ -709,7 +758,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { .at(&ObligationCause::dummy(), param_env) .relate(DefineOpaqueTypes::No, lhs, variance, rhs) .map(|InferOk { value: (), obligations }| { - self.add_goals(obligations.into_iter().map(|o| o.into())); + self.add_goals(GoalSource::Misc, obligations.into_iter().map(|o| o.into())); }) .map_err(|e| { debug!(?e, "failed to relate"); @@ -842,7 +891,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { true, &mut obligations, )?; - self.add_goals(obligations.into_iter().map(|o| o.into())); + self.add_goals(GoalSource::Misc, obligations.into_iter().map(|o| o.into())); Ok(()) } @@ -862,7 +911,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { hidden_ty, &mut obligations, ); - self.add_goals(obligations.into_iter().map(|o| o.into())); + self.add_goals(GoalSource::Misc, obligations.into_iter().map(|o| o.into())); } // Do something for each opaque/hidden pair defined with `def_id` in the diff --git a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs index a287582dca7..6db53d6ddc4 100644 --- a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs +++ b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs @@ -119,7 +119,7 @@ impl<'a, 'tcx> InspectGoal<'a, 'tcx> { ) { for step in &probe.steps { match step { - &inspect::ProbeStep::AddGoal(goal) => nested_goals.push(goal), + &inspect::ProbeStep::AddGoal(_source, goal) => nested_goals.push(goal), inspect::ProbeStep::NestedProbe(ref probe) => { // Nested probes have to prove goals added in their parent // but do not leak them, so we truncate the added goals diff --git a/compiler/rustc_trait_selection/src/solve/inspect/build.rs b/compiler/rustc_trait_selection/src/solve/inspect/build.rs index c857aae572d..d8caef5b03f 100644 --- a/compiler/rustc_trait_selection/src/solve/inspect/build.rs +++ b/compiler/rustc_trait_selection/src/solve/inspect/build.rs @@ -7,7 +7,7 @@ use std::mem; use rustc_middle::traits::query::NoSolution; use rustc_middle::traits::solve::{ - CanonicalInput, Certainty, Goal, IsNormalizesToHack, QueryInput, QueryResult, + CanonicalInput, Certainty, Goal, GoalSource, IsNormalizesToHack, QueryInput, QueryResult, }; use rustc_middle::ty::{self, TyCtxt}; use rustc_session::config::DumpSolverProofTree; @@ -216,7 +216,7 @@ impl<'tcx> WipProbe<'tcx> { #[derive(Eq, PartialEq, Debug)] enum WipProbeStep<'tcx> { - AddGoal(inspect::CanonicalState<'tcx, Goal<'tcx, ty::Predicate<'tcx>>>), + AddGoal(GoalSource, inspect::CanonicalState<'tcx, Goal<'tcx, ty::Predicate<'tcx>>>), EvaluateGoals(WipAddedGoalsEvaluation<'tcx>), NestedProbe(WipProbe<'tcx>), CommitIfOkStart, @@ -226,7 +226,7 @@ enum WipProbeStep<'tcx> { impl<'tcx> WipProbeStep<'tcx> { fn finalize(self) -> inspect::ProbeStep<'tcx> { match self { - WipProbeStep::AddGoal(goal) => inspect::ProbeStep::AddGoal(goal), + WipProbeStep::AddGoal(source, goal) => inspect::ProbeStep::AddGoal(source, goal), WipProbeStep::EvaluateGoals(eval) => inspect::ProbeStep::EvaluateGoals(eval.finalize()), WipProbeStep::NestedProbe(probe) => inspect::ProbeStep::NestedProbe(probe.finalize()), WipProbeStep::CommitIfOkStart => inspect::ProbeStep::CommitIfOkStart, @@ -428,7 +428,11 @@ impl<'tcx> ProofTreeBuilder<'tcx> { } } - pub fn add_goal(ecx: &mut EvalCtxt<'_, 'tcx>, goal: Goal<'tcx, ty::Predicate<'tcx>>) { + pub fn add_goal( + ecx: &mut EvalCtxt<'_, 'tcx>, + source: GoalSource, + goal: Goal<'tcx, ty::Predicate<'tcx>>, + ) { // Can't use `if let Some(this) = ecx.inspect.as_mut()` here because // we have to immutably use the `EvalCtxt` for `make_canonical_state`. if ecx.inspect.is_noop() { @@ -442,7 +446,9 @@ impl<'tcx> ProofTreeBuilder<'tcx> { evaluation: WipProbe { steps, .. }, .. }) - | DebugSolver::Probe(WipProbe { steps, .. }) => steps.push(WipProbeStep::AddGoal(goal)), + | DebugSolver::Probe(WipProbe { steps, .. }) => { + steps.push(WipProbeStep::AddGoal(source, goal)) + } s => unreachable!("tried to add {goal:?} to {s:?}"), } } diff --git a/compiler/rustc_trait_selection/src/solve/mod.rs b/compiler/rustc_trait_selection/src/solve/mod.rs index 1e58106e353..2f3111a2414 100644 --- a/compiler/rustc_trait_selection/src/solve/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/mod.rs @@ -19,8 +19,8 @@ use rustc_infer::infer::DefineOpaqueTypes; use rustc_infer::traits::query::NoSolution; use rustc_middle::infer::canonical::CanonicalVarInfos; use rustc_middle::traits::solve::{ - CanonicalResponse, Certainty, ExternalConstraintsData, Goal, IsNormalizesToHack, QueryResult, - Response, + CanonicalResponse, Certainty, ExternalConstraintsData, Goal, GoalSource, IsNormalizesToHack, + QueryResult, Response, }; use rustc_middle::ty::{self, OpaqueTypeKey, Ty, TyCtxt, UniverseIndex}; use rustc_middle::ty::{ @@ -157,7 +157,7 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { ) -> QueryResult<'tcx> { match self.well_formed_goals(goal.param_env, goal.predicate) { Some(goals) => { - self.add_goals(goals); + self.add_goals(GoalSource::Misc, goals); self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) } None => self.evaluate_added_goals_and_make_canonical_response(Certainty::AMBIGUOUS), @@ -223,15 +223,19 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { } #[instrument(level = "debug", skip(self))] - fn add_goal(&mut self, goal: Goal<'tcx, ty::Predicate<'tcx>>) { - inspect::ProofTreeBuilder::add_goal(self, goal); - self.nested_goals.goals.push(goal); + fn add_goal(&mut self, source: GoalSource, goal: Goal<'tcx, ty::Predicate<'tcx>>) { + inspect::ProofTreeBuilder::add_goal(self, source, goal); + self.nested_goals.goals.push((source, goal)); } #[instrument(level = "debug", skip(self, goals))] - fn add_goals(&mut self, goals: impl IntoIterator<Item = Goal<'tcx, ty::Predicate<'tcx>>>) { + fn add_goals( + &mut self, + source: GoalSource, + goals: impl IntoIterator<Item = Goal<'tcx, ty::Predicate<'tcx>>>, + ) { for goal in goals { - self.add_goal(goal); + self.add_goal(source, goal); } } @@ -335,7 +339,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { param_env, ty::NormalizesTo { alias, term: normalized_ty.into() }, ); - this.add_goal(normalizes_to_goal); + this.add_goal(GoalSource::Misc, normalizes_to_goal); this.try_evaluate_added_goals()?; let ty = this.resolve_vars_if_possible(normalized_ty); Ok(this.try_normalize_ty_recur(param_env, define_opaque_types, depth + 1, ty)) diff --git a/compiler/rustc_trait_selection/src/solve/normalizes_to/inherent.rs b/compiler/rustc_trait_selection/src/solve/normalizes_to/inherent.rs index c3b8ae9a943..b2dff9b48ff 100644 --- a/compiler/rustc_trait_selection/src/solve/normalizes_to/inherent.rs +++ b/compiler/rustc_trait_selection/src/solve/normalizes_to/inherent.rs @@ -4,10 +4,10 @@ //! 1. instantiate substs, //! 2. equate the self type, and //! 3. instantiate and register where clauses. -use rustc_middle::traits::solve::{Certainty, Goal, QueryResult}; +use rustc_middle::traits::solve::{Certainty, Goal, GoalSource, QueryResult}; use rustc_middle::ty; -use super::EvalCtxt; +use crate::solve::EvalCtxt; impl<'tcx> EvalCtxt<'_, 'tcx> { pub(super) fn normalize_inherent_associated_type( @@ -38,7 +38,13 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { .expect("expected goal term to be fully unconstrained"); // Check both where clauses on the impl and IAT + // + // FIXME(-Znext-solver=coinductive): I think this should be split + // and we tag the impl bounds with `GoalSource::ImplWhereBound`? + // Right not this includes both the impl and the assoc item where bounds, + // and I don't think the assoc item where-bounds are allowed to be coinductive. self.add_goals( + GoalSource::Misc, tcx.predicates_of(inherent.def_id) .instantiate(tcx, inherent_substs) .into_iter() diff --git a/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs b/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs index 980ef862366..0e9656a1e18 100644 --- a/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs @@ -1,7 +1,7 @@ use crate::traits::{check_args_compatible, specialization_graph}; use super::assembly::{self, structural_traits, Candidate}; -use super::EvalCtxt; +use super::{EvalCtxt, GoalSource}; use rustc_hir::def::DefKind; use rustc_hir::def_id::DefId; use rustc_hir::LangItem; @@ -128,6 +128,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for NormalizesTo<'tcx> { // Add GAT where clauses from the trait's definition ecx.add_goals( + GoalSource::Misc, tcx.predicates_of(goal.predicate.def_id()) .instantiate_own(tcx, goal.predicate.alias.args) .map(|(pred, _)| goal.with(tcx, pred)), @@ -169,10 +170,11 @@ impl<'tcx> assembly::GoalKind<'tcx> for NormalizesTo<'tcx> { .predicates .into_iter() .map(|pred| goal.with(tcx, pred)); - ecx.add_goals(where_clause_bounds); + ecx.add_goals(GoalSource::ImplWhereBound, where_clause_bounds); // Add GAT where clauses from the trait's definition ecx.add_goals( + GoalSource::Misc, tcx.predicates_of(goal.predicate.def_id()) .instantiate_own(tcx, goal.predicate.alias.args) .map(|(pred, _)| goal.with(tcx, pred)), @@ -413,7 +415,8 @@ impl<'tcx> assembly::GoalKind<'tcx> for NormalizesTo<'tcx> { DUMMY_SP, [ty::GenericArg::from(goal.predicate.self_ty())], ); - ecx.add_goal(goal.with(tcx, sized_predicate)); + // FIXME(-Znext-solver=coinductive): Should this be `GoalSource::ImplWhereBound`? + ecx.add_goal(GoalSource::Misc, goal.with(tcx, sized_predicate)); tcx.types.unit } @@ -421,7 +424,11 @@ impl<'tcx> assembly::GoalKind<'tcx> for NormalizesTo<'tcx> { None => tcx.types.unit, Some(field_def) => { let self_ty = field_def.ty(tcx, args); - ecx.add_goal(goal.with(tcx, goal.predicate.with_self_ty(tcx, self_ty))); + // FIXME(-Znext-solver=coinductive): Should this be `GoalSource::ImplWhereBound`? + ecx.add_goal( + GoalSource::Misc, + goal.with(tcx, goal.predicate.with_self_ty(tcx, self_ty)), + ); return ecx .evaluate_added_goals_and_make_canonical_response(Certainty::Yes); } @@ -431,7 +438,11 @@ impl<'tcx> assembly::GoalKind<'tcx> for NormalizesTo<'tcx> { ty::Tuple(elements) => match elements.last() { None => tcx.types.unit, Some(&self_ty) => { - ecx.add_goal(goal.with(tcx, goal.predicate.with_self_ty(tcx, self_ty))); + // FIXME(-Znext-solver=coinductive): Should this be `GoalSource::ImplWhereBound`? + ecx.add_goal( + GoalSource::Misc, + goal.with(tcx, goal.predicate.with_self_ty(tcx, self_ty)), + ); return ecx .evaluate_added_goals_and_make_canonical_response(Certainty::Yes); } diff --git a/compiler/rustc_trait_selection/src/solve/normalizes_to/weak_types.rs b/compiler/rustc_trait_selection/src/solve/normalizes_to/weak_types.rs index 8d2bbec6d8b..6d5728797d1 100644 --- a/compiler/rustc_trait_selection/src/solve/normalizes_to/weak_types.rs +++ b/compiler/rustc_trait_selection/src/solve/normalizes_to/weak_types.rs @@ -3,10 +3,10 @@ //! //! Since a weak alias is not ambiguous, this just computes the `type_of` of //! the alias and registers the where-clauses of the type alias. -use rustc_middle::traits::solve::{Certainty, Goal, QueryResult}; +use rustc_middle::traits::solve::{Certainty, Goal, GoalSource, QueryResult}; use rustc_middle::ty; -use super::EvalCtxt; +use crate::solve::EvalCtxt; impl<'tcx> EvalCtxt<'_, 'tcx> { pub(super) fn normalize_weak_type( @@ -22,6 +22,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { // Check where clauses self.add_goals( + GoalSource::Misc, tcx.predicates_of(weak_ty.def_id) .instantiate(tcx, weak_ty.args) .predicates diff --git a/compiler/rustc_trait_selection/src/solve/project_goals.rs b/compiler/rustc_trait_selection/src/solve/project_goals.rs index d0e92a54ceb..30ae385a8a0 100644 --- a/compiler/rustc_trait_selection/src/solve/project_goals.rs +++ b/compiler/rustc_trait_selection/src/solve/project_goals.rs @@ -1,3 +1,5 @@ +use crate::solve::GoalSource; + use super::EvalCtxt; use rustc_middle::traits::solve::{Certainty, Goal, QueryResult}; use rustc_middle::ty::{self, ProjectionPredicate}; @@ -22,14 +24,15 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { ) .into(), }; - self.add_goal(goal.with( + let goal = goal.with( tcx, ty::PredicateKind::AliasRelate( projection_term, goal.predicate.term, ty::AliasRelationDirection::Equate, ), - )); + ); + self.add_goal(GoalSource::Misc, goal); self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) } } diff --git a/compiler/rustc_trait_selection/src/solve/search_graph.rs b/compiler/rustc_trait_selection/src/solve/search_graph.rs index 2a08b80e02a..2a161c2d956 100644 --- a/compiler/rustc_trait_selection/src/solve/search_graph.rs +++ b/compiler/rustc_trait_selection/src/solve/search_graph.rs @@ -8,6 +8,7 @@ use rustc_index::IndexVec; use rustc_middle::dep_graph::dep_kinds; use rustc_middle::traits::solve::CacheData; use rustc_middle::traits::solve::{CanonicalInput, Certainty, EvaluationCache, QueryResult}; +use rustc_middle::ty; use rustc_middle::ty::TyCtxt; use rustc_session::Limit; use std::collections::hash_map::Entry; @@ -111,6 +112,15 @@ impl<'tcx> SearchGraph<'tcx> { self.stack.is_empty() } + pub(super) fn current_goal_is_normalizes_to(&self) -> bool { + self.stack.raw.last().map_or(false, |e| { + matches!( + e.input.value.goal.predicate.kind().skip_binder(), + ty::PredicateKind::NormalizesTo(..) + ) + }) + } + /// Returns the remaining depth allowed for nested goals. /// /// This is generally simply one less than the current depth. diff --git a/compiler/rustc_trait_selection/src/solve/trait_goals.rs b/compiler/rustc_trait_selection/src/solve/trait_goals.rs index deb50e6aefd..ac3ffd2d6c2 100644 --- a/compiler/rustc_trait_selection/src/solve/trait_goals.rs +++ b/compiler/rustc_trait_selection/src/solve/trait_goals.rs @@ -1,7 +1,7 @@ //! Dealing with trait goals, i.e. `T: Trait<'a, U>`. use super::assembly::{self, structural_traits, Candidate}; -use super::{EvalCtxt, SolverMode}; +use super::{EvalCtxt, GoalSource, SolverMode}; use rustc_hir::def_id::DefId; use rustc_hir::{LangItem, Movability}; use rustc_infer::traits::query::NoSolution; @@ -72,7 +72,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> { .predicates .into_iter() .map(|pred| goal.with(tcx, pred)); - ecx.add_goals(where_clause_bounds); + ecx.add_goals(GoalSource::ImplWhereBound, where_clause_bounds); ecx.evaluate_added_goals_and_make_canonical_response(maximal_certainty) }) @@ -172,7 +172,11 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> { let nested_obligations = tcx .predicates_of(goal.predicate.def_id()) .instantiate(tcx, goal.predicate.trait_ref.args); - ecx.add_goals(nested_obligations.predicates.into_iter().map(|p| goal.with(tcx, p))); + // FIXME(-Znext-solver=coinductive): Should this be `GoalSource::ImplWhereBound`? + ecx.add_goals( + GoalSource::Misc, + nested_obligations.predicates.into_iter().map(|p| goal.with(tcx, p)), + ); ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) }) } @@ -512,17 +516,23 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> { // Check that the type implements all of the predicates of the trait object. // (i.e. the principal, all of the associated types match, and any auto traits) - ecx.add_goals(b_data.iter().map(|pred| goal.with(tcx, pred.with_self_ty(tcx, a_ty)))); + ecx.add_goals( + GoalSource::ImplWhereBound, + b_data.iter().map(|pred| goal.with(tcx, pred.with_self_ty(tcx, a_ty))), + ); // The type must be `Sized` to be unsized. if let Some(sized_def_id) = tcx.lang_items().sized_trait() { - ecx.add_goal(goal.with(tcx, ty::TraitRef::new(tcx, sized_def_id, [a_ty]))); + ecx.add_goal( + GoalSource::ImplWhereBound, + goal.with(tcx, ty::TraitRef::new(tcx, sized_def_id, [a_ty])), + ); } else { return Err(NoSolution); } // The type must outlive the lifetime of the `dyn` we're unsizing into. - ecx.add_goal(goal.with(tcx, ty::OutlivesPredicate(a_ty, b_region))); + ecx.add_goal(GoalSource::Misc, goal.with(tcx, ty::OutlivesPredicate(a_ty, b_region))); ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) }) } @@ -749,11 +759,14 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { } // Also require that a_ty's lifetime outlives b_ty's lifetime. - self.add_goal(Goal::new( - self.tcx(), - param_env, - ty::Binder::dummy(ty::OutlivesPredicate(a_region, b_region)), - )); + self.add_goal( + GoalSource::ImplWhereBound, + Goal::new( + self.tcx(), + param_env, + ty::Binder::dummy(ty::OutlivesPredicate(a_region, b_region)), + ), + ); self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) } @@ -826,14 +839,17 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { // Finally, we require that `TailA: Unsize<TailB>` for the tail field // types. self.eq(goal.param_env, unsized_a_ty, b_ty)?; - self.add_goal(goal.with( - tcx, - ty::TraitRef::new( + self.add_goal( + GoalSource::ImplWhereBound, + goal.with( tcx, - tcx.lang_items().unsize_trait().unwrap(), - [a_tail_ty, b_tail_ty], + ty::TraitRef::new( + tcx, + tcx.lang_items().unsize_trait().unwrap(), + [a_tail_ty, b_tail_ty], + ), ), - )); + ); self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) } @@ -865,14 +881,17 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { self.eq(goal.param_env, unsized_a_ty, b_ty)?; // Similar to ADTs, require that we can unsize the tail. - self.add_goal(goal.with( - tcx, - ty::TraitRef::new( + self.add_goal( + GoalSource::ImplWhereBound, + goal.with( tcx, - tcx.lang_items().unsize_trait().unwrap(), - [a_last_ty, b_last_ty], + ty::TraitRef::new( + tcx, + tcx.lang_items().unsize_trait().unwrap(), + [a_last_ty, b_last_ty], + ), ), - )); + ); self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) } @@ -981,6 +1000,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { ) -> QueryResult<'tcx> { self.probe_misc_candidate("constituent tys").enter(|ecx| { ecx.add_goals( + GoalSource::ImplWhereBound, constituent_tys(ecx, goal.predicate.self_ty())? .into_iter() .map(|ty| goal.with(ecx.tcx(), goal.predicate.with_self_ty(ecx.tcx(), ty))) diff --git a/compiler/rustc_trait_selection/src/traits/auto_trait.rs b/compiler/rustc_trait_selection/src/traits/auto_trait.rs index 13a09917c03..c6d029ddb65 100644 --- a/compiler/rustc_trait_selection/src/traits/auto_trait.rs +++ b/compiler/rustc_trait_selection/src/traits/auto_trait.rs @@ -477,7 +477,7 @@ impl<'tcx> AutoTraitFinder<'tcx> { let mut vid_map: FxHashMap<RegionTarget<'cx>, RegionDeps<'cx>> = FxHashMap::default(); let mut finished_map = FxHashMap::default(); - for constraint in regions.constraints.keys() { + for (constraint, _) in ®ions.constraints { match constraint { &Constraint::VarSubVar(r1, r2) => { { diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/infer_ctxt_ext.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/infer_ctxt_ext.rs index 0190d5ab4be..676b40850b1 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/infer_ctxt_ext.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/infer_ctxt_ext.rs @@ -1,7 +1,7 @@ use crate::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; use crate::infer::InferCtxt; use crate::traits::{Obligation, ObligationCause, ObligationCtxt}; -use rustc_errors::{pluralize, struct_span_err, Applicability, DiagnosticBuilder, ErrorGuaranteed}; +use rustc_errors::{pluralize, struct_span_err, Applicability, DiagnosticBuilder}; use rustc_hir as hir; use rustc_hir::Node; use rustc_middle::ty::{self, Ty}; @@ -29,7 +29,7 @@ pub trait InferCtxtExt<'tcx> { found_args: Vec<ArgKind>, is_closure: bool, closure_pipe_span: Option<Span>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; + ) -> DiagnosticBuilder<'tcx>; /// Checks if the type implements one of `Fn`, `FnMut`, or `FnOnce` /// in that order, and returns the generic type corresponding to the @@ -118,7 +118,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> { found_args: Vec<ArgKind>, is_closure: bool, closure_arg_span: Option<Span>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let kind = if is_closure { "closure" } else { "function" }; let args_str = |arguments: &[ArgKind], other: &[ArgKind]| { diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs index a1b896d2251..e84c5b76421 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs @@ -14,7 +14,7 @@ use rustc_data_structures::fx::FxHashSet; use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_errors::{ error_code, pluralize, struct_span_err, Applicability, Diagnostic, DiagnosticBuilder, - ErrorGuaranteed, MultiSpan, Style, SuggestionStyle, + MultiSpan, Style, SuggestionStyle, }; use rustc_hir as hir; use rustc_hir::def::{DefKind, Res}; @@ -22,7 +22,7 @@ use rustc_hir::def_id::DefId; use rustc_hir::intravisit::Visitor; use rustc_hir::is_range_literal; use rustc_hir::lang_items::LangItem; -use rustc_hir::{CoroutineKind, CoroutineSource, Node}; +use rustc_hir::{CoroutineDesugaring, CoroutineKind, CoroutineSource, Node}; use rustc_hir::{Expr, HirId}; use rustc_infer::infer::error_reporting::TypeErrCtxt; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; @@ -207,7 +207,7 @@ pub trait TypeErrCtxtExt<'tcx> { fn point_at_returns_when_relevant( &self, - err: &mut DiagnosticBuilder<'tcx, ErrorGuaranteed>, + err: &mut DiagnosticBuilder<'tcx>, obligation: &PredicateObligation<'tcx>, ); @@ -220,7 +220,7 @@ pub trait TypeErrCtxtExt<'tcx> { cause: &ObligationCauseCode<'tcx>, found_node: Option<Node<'_>>, param_env: ty::ParamEnv<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; + ) -> DiagnosticBuilder<'tcx>; fn note_conflicting_fn_args( &self, @@ -234,7 +234,7 @@ pub trait TypeErrCtxtExt<'tcx> { fn note_conflicting_closure_bounds( &self, cause: &ObligationCauseCode<'tcx>, - err: &mut DiagnosticBuilder<'tcx, ErrorGuaranteed>, + err: &mut DiagnosticBuilder<'tcx>, ); fn suggest_fully_qualified_path( @@ -1384,7 +1384,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { if has_custom_message { err.note(msg); } else { - err.message = + err.messages = vec![(rustc_errors::DiagnosticMessage::from(msg), Style::NoStyle)]; } let mut file = None; @@ -1920,7 +1920,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { fn point_at_returns_when_relevant( &self, - err: &mut DiagnosticBuilder<'tcx, ErrorGuaranteed>, + err: &mut DiagnosticBuilder<'tcx>, obligation: &PredicateObligation<'tcx>, ) { match obligation.cause.code().peel_derives() { @@ -1961,7 +1961,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { cause: &ObligationCauseCode<'tcx>, found_node: Option<Node<'_>>, param_env: ty::ParamEnv<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { pub(crate) fn build_fn_sig_ty<'tcx>( infcx: &InferCtxt<'tcx>, trait_ref: ty::PolyTraitRef<'tcx>, @@ -2187,7 +2187,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { fn note_conflicting_closure_bounds( &self, cause: &ObligationCauseCode<'tcx>, - err: &mut DiagnosticBuilder<'tcx, ErrorGuaranteed>, + err: &mut DiagnosticBuilder<'tcx>, ) { // First, look for an `ExprBindingObligation`, which means we can get // the unsubstituted predicate list of the called function. And check @@ -2578,7 +2578,10 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { .and_then(|coroutine_did| { Some(match self.tcx.coroutine_kind(coroutine_did).unwrap() { CoroutineKind::Coroutine => format!("coroutine is not {trait_name}"), - CoroutineKind::Async(CoroutineSource::Fn) => self + CoroutineKind::Desugared( + CoroutineDesugaring::Async, + CoroutineSource::Fn, + ) => self .tcx .parent(coroutine_did) .as_local() @@ -2587,13 +2590,22 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { .map(|name| { format!("future returned by `{name}` is not {trait_name}") })?, - CoroutineKind::Async(CoroutineSource::Block) => { + CoroutineKind::Desugared( + CoroutineDesugaring::Async, + CoroutineSource::Block, + ) => { format!("future created by async block is not {trait_name}") } - CoroutineKind::Async(CoroutineSource::Closure) => { + CoroutineKind::Desugared( + CoroutineDesugaring::Async, + CoroutineSource::Closure, + ) => { format!("future created by async closure is not {trait_name}") } - CoroutineKind::AsyncGen(CoroutineSource::Fn) => self + CoroutineKind::Desugared( + CoroutineDesugaring::AsyncGen, + CoroutineSource::Fn, + ) => self .tcx .parent(coroutine_did) .as_local() @@ -2602,27 +2614,40 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { .map(|name| { format!("async iterator returned by `{name}` is not {trait_name}") })?, - CoroutineKind::AsyncGen(CoroutineSource::Block) => { + CoroutineKind::Desugared( + CoroutineDesugaring::AsyncGen, + CoroutineSource::Block, + ) => { format!("async iterator created by async gen block is not {trait_name}") } - CoroutineKind::AsyncGen(CoroutineSource::Closure) => { + CoroutineKind::Desugared( + CoroutineDesugaring::AsyncGen, + CoroutineSource::Closure, + ) => { format!( "async iterator created by async gen closure is not {trait_name}" ) } - CoroutineKind::Gen(CoroutineSource::Fn) => self - .tcx - .parent(coroutine_did) - .as_local() - .map(|parent_did| self.tcx.local_def_id_to_hir_id(parent_did)) - .and_then(|parent_hir_id| hir.opt_name(parent_hir_id)) - .map(|name| { - format!("iterator returned by `{name}` is not {trait_name}") - })?, - CoroutineKind::Gen(CoroutineSource::Block) => { + CoroutineKind::Desugared(CoroutineDesugaring::Gen, CoroutineSource::Fn) => { + self.tcx + .parent(coroutine_did) + .as_local() + .map(|parent_did| self.tcx.local_def_id_to_hir_id(parent_did)) + .and_then(|parent_hir_id| hir.opt_name(parent_hir_id)) + .map(|name| { + format!("iterator returned by `{name}` is not {trait_name}") + })? + } + CoroutineKind::Desugared( + CoroutineDesugaring::Gen, + CoroutineSource::Block, + ) => { format!("iterator created by gen block is not {trait_name}") } - CoroutineKind::Gen(CoroutineSource::Closure) => { + CoroutineKind::Desugared( + CoroutineDesugaring::Gen, + CoroutineSource::Closure, + ) => { format!("iterator created by gen closure is not {trait_name}") } }) @@ -3145,9 +3170,15 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let what = match self.tcx.coroutine_kind(coroutine_def_id) { None | Some(hir::CoroutineKind::Coroutine) - | Some(hir::CoroutineKind::Gen(_)) => "yield", - Some(hir::CoroutineKind::Async(..)) => "await", - Some(hir::CoroutineKind::AsyncGen(_)) => "yield`/`await", + | Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _)) => { + "yield" + } + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _)) => { + "await" + } + Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _)) => { + "yield`/`await" + } }; err.note(format!( "all values live across `{what}` must have a statically known size" @@ -3535,7 +3566,9 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ) { if let Some(body_id) = self.tcx.hir().maybe_body_owned_by(obligation.cause.body_id) { let body = self.tcx.hir().body(body_id); - if let Some(hir::CoroutineKind::Async(_)) = body.coroutine_kind { + if let Some(hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _)) = + body.coroutine_kind + { let future_trait = self.tcx.require_lang_item(LangItem::Future, None); let self_ty = self.resolve_vars_if_possible(trait_pred.self_ty()); diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs index 5cc934e7bc5..a495f8399b9 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs @@ -1,3 +1,5 @@ +// ignore-tidy-filelength :( + use super::on_unimplemented::{AppendConstMessage, OnUnimplementedNote, TypeErrCtxtExt as _}; use super::suggestions::{get_explanation_based_on_obligation, TypeErrCtxtExt as _}; use crate::errors::{ClosureFnMutLabel, ClosureFnOnceLabel, ClosureKindMismatch}; @@ -59,7 +61,7 @@ pub trait TypeErrCtxtExt<'tcx> { predicate: &T, span: Span, suggest_increasing_limit: bool, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> + ) -> DiagnosticBuilder<'tcx> where T: fmt::Display + TypeFoldable<TyCtxt<'tcx>> + Print<'tcx, FmtPrinter<'tcx, 'tcx>>; @@ -118,7 +120,7 @@ pub trait TypeErrCtxtExt<'tcx> { &self, ty: Ty<'tcx>, obligation: &PredicateObligation<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; + ) -> DiagnosticBuilder<'tcx>; } impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { @@ -263,7 +265,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { predicate: &T, span: Span, suggest_increasing_limit: bool, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> + ) -> DiagnosticBuilder<'tcx> where T: fmt::Display + TypeFoldable<TyCtxt<'tcx>> + Print<'tcx, FmtPrinter<'tcx, 'tcx>>, { @@ -1226,7 +1228,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { &self, ty: Ty<'tcx>, obligation: &PredicateObligation<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let span = obligation.cause.span; let mut diag = match ty.kind() { @@ -1491,7 +1493,7 @@ pub(super) trait InferCtxtPrivExt<'tcx> { closure_def_id: DefId, found_kind: ty::ClosureKind, kind: ty::ClosureKind, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; + ) -> DiagnosticBuilder<'tcx>; fn report_type_parameter_mismatch_cyclic_type_error( &self, @@ -1499,13 +1501,13 @@ pub(super) trait InferCtxtPrivExt<'tcx> { found_trait_ref: ty::Binder<'tcx, ty::TraitRef<'tcx>>, expected_trait_ref: ty::Binder<'tcx, ty::TraitRef<'tcx>>, terr: TypeError<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; + ) -> DiagnosticBuilder<'tcx>; fn report_opaque_type_auto_trait_leakage( &self, obligation: &PredicateObligation<'tcx>, def_id: DefId, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; + ) -> DiagnosticBuilder<'tcx>; fn report_type_parameter_mismatch_error( &self, @@ -1513,13 +1515,13 @@ pub(super) trait InferCtxtPrivExt<'tcx> { span: Span, found_trait_ref: ty::Binder<'tcx, ty::TraitRef<'tcx>>, expected_trait_ref: ty::Binder<'tcx, ty::TraitRef<'tcx>>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>>; + ) -> Option<DiagnosticBuilder<'tcx>>; fn report_not_const_evaluatable_error( &self, obligation: &PredicateObligation<'tcx>, span: Span, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>>; + ) -> Option<DiagnosticBuilder<'tcx>>; } impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { @@ -1926,15 +1928,42 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { fn describe_coroutine(&self, body_id: hir::BodyId) -> Option<&'static str> { self.tcx.hir().body(body_id).coroutine_kind.map(|coroutine_source| match coroutine_source { hir::CoroutineKind::Coroutine => "a coroutine", - hir::CoroutineKind::Async(hir::CoroutineSource::Block) => "an async block", - hir::CoroutineKind::Async(hir::CoroutineSource::Fn) => "an async function", - hir::CoroutineKind::Async(hir::CoroutineSource::Closure) => "an async closure", - hir::CoroutineKind::AsyncGen(hir::CoroutineSource::Block) => "an async gen block", - hir::CoroutineKind::AsyncGen(hir::CoroutineSource::Fn) => "an async gen function", - hir::CoroutineKind::AsyncGen(hir::CoroutineSource::Closure) => "an async gen closure", - hir::CoroutineKind::Gen(hir::CoroutineSource::Block) => "a gen block", - hir::CoroutineKind::Gen(hir::CoroutineSource::Fn) => "a gen function", - hir::CoroutineKind::Gen(hir::CoroutineSource::Closure) => "a gen closure", + hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Async, + hir::CoroutineSource::Block, + ) => "an async block", + hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Async, + hir::CoroutineSource::Fn, + ) => "an async function", + hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Async, + hir::CoroutineSource::Closure, + ) => "an async closure", + hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::AsyncGen, + hir::CoroutineSource::Block, + ) => "an async gen block", + hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::AsyncGen, + hir::CoroutineSource::Fn, + ) => "an async gen function", + hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::AsyncGen, + hir::CoroutineSource::Closure, + ) => "an async gen closure", + hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Gen, + hir::CoroutineSource::Block, + ) => "a gen block", + hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Gen, + hir::CoroutineSource::Fn, + ) => "a gen function", + hir::CoroutineKind::Desugared( + hir::CoroutineDesugaring::Gen, + hir::CoroutineSource::Closure, + ) => "a gen closure", }) } @@ -3305,7 +3334,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { closure_def_id: DefId, found_kind: ty::ClosureKind, kind: ty::ClosureKind, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let closure_span = self.tcx.def_span(closure_def_id); let mut err = ClosureKindMismatch { @@ -3347,7 +3376,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { found_trait_ref: ty::Binder<'tcx, ty::TraitRef<'tcx>>, expected_trait_ref: ty::Binder<'tcx, ty::TraitRef<'tcx>>, terr: TypeError<'tcx>, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let self_ty = found_trait_ref.self_ty().skip_binder(); let (cause, terr) = if let ty::Closure(def_id, _) = self_ty.kind() { ( @@ -3367,7 +3396,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { &self, obligation: &PredicateObligation<'tcx>, def_id: DefId, - ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { + ) -> DiagnosticBuilder<'tcx> { let name = match self.tcx.opaque_type_origin(def_id.expect_local()) { hir::OpaqueTyOrigin::FnReturn(_) | hir::OpaqueTyOrigin::AsyncFn(_) => { "opaque type".to_string() @@ -3395,7 +3424,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { }; if let Some(diag) = - self.tcx.sess.diagnostic().steal_diagnostic(self.tcx.def_span(def_id), StashKey::Cycle) + self.tcx.sess.dcx().steal_diagnostic(self.tcx.def_span(def_id), StashKey::Cycle) { diag.cancel(); } @@ -3409,7 +3438,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { span: Span, found_trait_ref: ty::Binder<'tcx, ty::TraitRef<'tcx>>, expected_trait_ref: ty::Binder<'tcx, ty::TraitRef<'tcx>>, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { let found_trait_ref = self.resolve_vars_if_possible(found_trait_ref); let expected_trait_ref = self.resolve_vars_if_possible(expected_trait_ref); @@ -3515,7 +3544,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { &self, obligation: &PredicateObligation<'tcx>, span: Span, - ) -> Option<DiagnosticBuilder<'tcx, ErrorGuaranteed>> { + ) -> Option<DiagnosticBuilder<'tcx>> { if !self.tcx.features().generic_const_exprs { let mut err = self .tcx diff --git a/compiler/rustc_trait_selection/src/traits/fulfill.rs b/compiler/rustc_trait_selection/src/traits/fulfill.rs index 9cbddd2bb2b..045d7e444b6 100644 --- a/compiler/rustc_trait_selection/src/traits/fulfill.rs +++ b/compiler/rustc_trait_selection/src/traits/fulfill.rs @@ -116,12 +116,13 @@ impl<'tcx> TraitEngine<'tcx> for FulfillmentContext<'tcx> { fn register_predicate_obligation( &mut self, infcx: &InferCtxt<'tcx>, - obligation: PredicateObligation<'tcx>, + mut obligation: PredicateObligation<'tcx>, ) { assert_eq!(self.usable_in_snapshot, infcx.num_open_snapshots()); // this helps to reduce duplicate errors, as well as making // debug output much nicer to read and so on. - let obligation = infcx.resolve_vars_if_possible(obligation); + debug_assert!(!obligation.param_env.has_non_region_infer()); + obligation.predicate = infcx.resolve_vars_if_possible(obligation.predicate); debug!(?obligation, "register_predicate_obligation"); diff --git a/compiler/rustc_trait_selection/src/traits/object_safety.rs b/compiler/rustc_trait_selection/src/traits/object_safety.rs index 47a79bfa9ab..7ac37315fe0 100644 --- a/compiler/rustc_trait_selection/src/traits/object_safety.rs +++ b/compiler/rustc_trait_selection/src/traits/object_safety.rs @@ -594,9 +594,7 @@ fn virtual_call_violations_for_method<'tcx>( // would already have reported an error at the definition of the // auto trait. if pred_trait_ref.args.len() != 1 { - tcx.sess - .diagnostic() - .span_delayed_bug(span, "auto traits cannot have generic parameters"); + tcx.sess.dcx().span_delayed_bug(span, "auto traits cannot have generic parameters"); } return false; } diff --git a/compiler/rustc_trait_selection/src/traits/project.rs b/compiler/rustc_trait_selection/src/traits/project.rs index d5635812c74..a1b0ada0e8a 100644 --- a/compiler/rustc_trait_selection/src/traits/project.rs +++ b/compiler/rustc_trait_selection/src/traits/project.rs @@ -2327,8 +2327,9 @@ fn confirm_fn_pointer_candidate<'cx, 'tcx>( obligation: &ProjectionTyObligation<'tcx>, nested: Vec<PredicateObligation<'tcx>>, ) -> Progress<'tcx> { + let tcx = selcx.tcx(); let fn_type = selcx.infcx.shallow_resolve(obligation.predicate.self_ty()); - let sig = fn_type.fn_sig(selcx.tcx()); + let sig = fn_type.fn_sig(tcx); let Normalized { value: sig, obligations } = normalize_with_depth( selcx, obligation.param_env, @@ -2337,9 +2338,24 @@ fn confirm_fn_pointer_candidate<'cx, 'tcx>( sig, ); - confirm_callable_candidate(selcx, obligation, sig, util::TupleArgumentsFlag::Yes) - .with_addl_obligations(nested) - .with_addl_obligations(obligations) + let host_effect_param = match *fn_type.kind() { + ty::FnDef(def_id, args) => tcx + .generics_of(def_id) + .host_effect_index + .map_or(tcx.consts.true_, |idx| args.const_at(idx)), + ty::FnPtr(_) => tcx.consts.true_, + _ => unreachable!("only expected FnPtr or FnDef in `confirm_fn_pointer_candidate`"), + }; + + confirm_callable_candidate( + selcx, + obligation, + sig, + util::TupleArgumentsFlag::Yes, + host_effect_param, + ) + .with_addl_obligations(nested) + .with_addl_obligations(obligations) } fn confirm_closure_candidate<'cx, 'tcx>( @@ -2362,9 +2378,16 @@ fn confirm_closure_candidate<'cx, 'tcx>( debug!(?obligation, ?closure_sig, ?obligations, "confirm_closure_candidate"); - confirm_callable_candidate(selcx, obligation, closure_sig, util::TupleArgumentsFlag::No) - .with_addl_obligations(nested) - .with_addl_obligations(obligations) + confirm_callable_candidate( + selcx, + obligation, + closure_sig, + util::TupleArgumentsFlag::No, + // FIXME(effects): This doesn't handle const closures correctly! + selcx.tcx().consts.true_, + ) + .with_addl_obligations(nested) + .with_addl_obligations(obligations) } fn confirm_callable_candidate<'cx, 'tcx>( @@ -2372,6 +2395,7 @@ fn confirm_callable_candidate<'cx, 'tcx>( obligation: &ProjectionTyObligation<'tcx>, fn_sig: ty::PolyFnSig<'tcx>, flag: util::TupleArgumentsFlag, + fn_host_effect: ty::Const<'tcx>, ) -> Progress<'tcx> { let tcx = selcx.tcx(); @@ -2386,6 +2410,7 @@ fn confirm_callable_candidate<'cx, 'tcx>( obligation.predicate.self_ty(), fn_sig, flag, + fn_host_effect, ) .map_bound(|(trait_ref, ret_type)| ty::ProjectionPredicate { projection_ty: ty::AliasTy::new(tcx, fn_once_output_def_id, trait_ref.args), diff --git a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs index c7d0ab71644..73e06b84085 100644 --- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs +++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs @@ -154,10 +154,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { .infcx .probe(|_| self.match_projection_obligation_against_definition_bounds(obligation)); - // FIXME(effects) proper constness needed? - candidates.vec.extend( - result.into_iter().map(|idx| ProjectionCandidate(idx, ty::BoundConstness::NotConst)), - ); + candidates.vec.extend(result.into_iter().map(|idx| ProjectionCandidate(idx))); } /// Given an obligation like `<SomeTrait for T>`, searches the obligations that the caller @@ -358,17 +355,23 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // Provide an impl, but only for suitable `fn` pointers. ty::FnPtr(sig) => { if sig.is_fn_trait_compatible() { - candidates.vec.push(FnPointerCandidate { is_const: false }); + candidates + .vec + .push(FnPointerCandidate { fn_host_effect: self.tcx().consts.true_ }); } } // Provide an impl for suitable functions, rejecting `#[target_feature]` functions (RFC 2396). - ty::FnDef(def_id, _) => { - if self.tcx().fn_sig(def_id).skip_binder().is_fn_trait_compatible() - && self.tcx().codegen_fn_attrs(def_id).target_features.is_empty() + ty::FnDef(def_id, args) => { + let tcx = self.tcx(); + if tcx.fn_sig(def_id).skip_binder().is_fn_trait_compatible() + && tcx.codegen_fn_attrs(def_id).target_features.is_empty() { - candidates - .vec - .push(FnPointerCandidate { is_const: self.tcx().is_const_fn(def_id) }); + candidates.vec.push(FnPointerCandidate { + fn_host_effect: tcx + .generics_of(def_id) + .host_effect_index + .map_or(tcx.consts.true_, |idx| args.const_at(idx)), + }); } } _ => {} @@ -585,7 +588,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } ty::Alias(ty::Opaque, _) => { - if candidates.vec.iter().any(|c| matches!(c, ProjectionCandidate(..))) { + if candidates.vec.iter().any(|c| matches!(c, ProjectionCandidate(_))) { // We do not generate an auto impl candidate for `impl Trait`s which already // reference our auto trait. // diff --git a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs index 7e3d304d1cd..ce3fc2185ba 100644 --- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs +++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs @@ -71,7 +71,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { ImplSource::Builtin(BuiltinImplSource::Misc, data) } - ProjectionCandidate(idx, _) => { + ProjectionCandidate(idx) => { let obligations = self.confirm_projection_candidate(obligation, idx)?; ImplSource::Param(obligations) } @@ -103,8 +103,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { ImplSource::Builtin(BuiltinImplSource::Misc, vtable_iterator) } - FnPointerCandidate { is_const } => { - let data = self.confirm_fn_pointer_candidate(obligation, is_const)?; + FnPointerCandidate { fn_host_effect } => { + let data = self.confirm_fn_pointer_candidate(obligation, fn_host_effect)?; ImplSource::Builtin(BuiltinImplSource::Misc, data) } @@ -653,8 +653,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { fn confirm_fn_pointer_candidate( &mut self, obligation: &PolyTraitObligation<'tcx>, - // FIXME(effects) - _is_const: bool, + fn_host_effect: ty::Const<'tcx>, ) -> Result<Vec<PredicateObligation<'tcx>>, SelectionError<'tcx>> { debug!(?obligation, "confirm_fn_pointer_candidate"); @@ -675,6 +674,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { self_ty, sig, util::TupleArgumentsFlag::Yes, + fn_host_effect, ) .map_bound(|(trait_ref, _)| trait_ref); @@ -860,7 +860,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { bug!("closure candidate for non-closure {:?}", obligation); }; - let trait_ref = self.closure_trait_ref_unnormalized(obligation, args); + let trait_ref = + self.closure_trait_ref_unnormalized(obligation, args, self.tcx().consts.true_); let nested = self.confirm_poly_trait_refs(obligation, trait_ref)?; debug!(?closure_def_id, ?trait_ref, ?nested, "confirm closure candidate obligations"); @@ -1313,7 +1314,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // If we have a projection type, make sure to normalize it so we replace it // with a fresh infer variable ty::Alias(ty::Projection | ty::Inherent, ..) => { - // FIXME(effects) this needs constness let predicate = normalize_with_depth_to( self, obligation.param_env, @@ -1344,7 +1344,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // since it's either not `const Drop` (and we raise an error during selection), // or it's an ADT (and we need to check for a custom impl during selection) _ => { - // FIXME(effects) this needs constness let predicate = self_ty.rebind(ty::TraitPredicate { trait_ref: ty::TraitRef::from_lang_item( self.tcx(), diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 7f31a2529f5..23f7bdd1584 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -1226,11 +1226,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { if unbound_input_types && stack.iter().skip(1).any(|prev| { stack.obligation.param_env == prev.obligation.param_env - && self.match_fresh_trait_refs( - stack.fresh_trait_pred, - prev.fresh_trait_pred, - prev.obligation.param_env, - ) + && self.match_fresh_trait_refs(stack.fresh_trait_pred, prev.fresh_trait_pred) }) { debug!("evaluate_stack --> unbound argument, recursive --> giving up",); @@ -1865,7 +1861,9 @@ impl<'tcx> SelectionContext<'_, 'tcx> { } // Drop otherwise equivalent non-const fn pointer candidates - (FnPointerCandidate { .. }, FnPointerCandidate { is_const: false }) => DropVictim::Yes, + (FnPointerCandidate { .. }, FnPointerCandidate { fn_host_effect }) => { + DropVictim::drop_if(*fn_host_effect == self.tcx().consts.true_) + } ( ParamCandidate(ref other_cand), @@ -1883,7 +1881,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> { | BuiltinCandidate { .. } | TraitAliasCandidate | ObjectCandidate(_) - | ProjectionCandidate(..), + | ProjectionCandidate(_), ) => { // We have a where clause so don't go around looking // for impls. Arbitrarily give param candidates priority @@ -1893,7 +1891,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> { // here (see issue #50825). DropVictim::drop_if(!is_global(other_cand)) } - (ObjectCandidate(_) | ProjectionCandidate(..), ParamCandidate(ref victim_cand)) => { + (ObjectCandidate(_) | ProjectionCandidate(_), ParamCandidate(ref victim_cand)) => { // Prefer these to a global where-clause bound // (see issue #50825). if is_global(victim_cand) { DropVictim::Yes } else { DropVictim::No } @@ -1921,20 +1919,20 @@ impl<'tcx> SelectionContext<'_, 'tcx> { ) } - (ProjectionCandidate(i, _), ProjectionCandidate(j, _)) + (ProjectionCandidate(i), ProjectionCandidate(j)) | (ObjectCandidate(i), ObjectCandidate(j)) => { // Arbitrarily pick the lower numbered candidate for backwards // compatibility reasons. Don't let this affect inference. DropVictim::drop_if(i < j && !has_non_region_infer) } - (ObjectCandidate(_), ProjectionCandidate(..)) - | (ProjectionCandidate(..), ObjectCandidate(_)) => { + (ObjectCandidate(_), ProjectionCandidate(_)) + | (ProjectionCandidate(_), ObjectCandidate(_)) => { bug!("Have both object and projection candidate") } // Arbitrarily give projection and object candidates priority. ( - ObjectCandidate(_) | ProjectionCandidate(..), + ObjectCandidate(_) | ProjectionCandidate(_), ImplCandidate(..) | AutoImplCandidate | ClosureCandidate { .. } @@ -1964,7 +1962,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> { | TraitUpcastingUnsizeCandidate(_) | BuiltinCandidate { .. } | TraitAliasCandidate, - ObjectCandidate(_) | ProjectionCandidate(..), + ObjectCandidate(_) | ProjectionCandidate(_), ) => DropVictim::No, (&ImplCandidate(other_def), &ImplCandidate(victim_def)) => { @@ -2630,9 +2628,8 @@ impl<'tcx> SelectionContext<'_, 'tcx> { &self, previous: ty::PolyTraitPredicate<'tcx>, current: ty::PolyTraitPredicate<'tcx>, - param_env: ty::ParamEnv<'tcx>, ) -> bool { - let mut matcher = MatchAgainstFreshVars::new(self.tcx(), param_env); + let mut matcher = MatchAgainstFreshVars::new(self.tcx()); matcher.relate(previous, current).is_ok() } @@ -2660,6 +2657,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> { &mut self, obligation: &PolyTraitObligation<'tcx>, args: GenericArgsRef<'tcx>, + fn_host_effect: ty::Const<'tcx>, ) -> ty::PolyTraitRef<'tcx> { let closure_sig = args.as_closure().sig(); @@ -2680,6 +2678,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> { self_ty, closure_sig, util::TupleArgumentsFlag::No, + fn_host_effect, ) .map_bound(|(trait_ref, _)| trait_ref) } diff --git a/compiler/rustc_trait_selection/src/traits/structural_normalize.rs b/compiler/rustc_trait_selection/src/traits/structural_normalize.rs index b9ab26fe2fe..e0f9fdc3827 100644 --- a/compiler/rustc_trait_selection/src/traits/structural_normalize.rs +++ b/compiler/rustc_trait_selection/src/traits/structural_normalize.rs @@ -3,7 +3,7 @@ use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKi use rustc_infer::traits::{FulfillmentError, TraitEngine}; use rustc_middle::ty::{self, Ty}; -use crate::traits::{query::evaluate_obligation::InferCtxtExt, NormalizeExt, Obligation}; +use crate::traits::{NormalizeExt, Obligation}; pub trait StructurallyNormalizeExt<'tcx> { fn structurally_normalize( @@ -16,42 +16,43 @@ pub trait StructurallyNormalizeExt<'tcx> { impl<'tcx> StructurallyNormalizeExt<'tcx> for At<'_, 'tcx> { fn structurally_normalize( &self, - mut ty: Ty<'tcx>, + ty: Ty<'tcx>, fulfill_cx: &mut dyn TraitEngine<'tcx>, ) -> Result<Ty<'tcx>, Vec<FulfillmentError<'tcx>>> { assert!(!ty.is_ty_var(), "should have resolved vars before calling"); if self.infcx.next_trait_solver() { - // FIXME(-Znext-solver): correctly handle - // overflow here. - for _ in 0..256 { - let ty::Alias(ty::Projection | ty::Inherent | ty::Weak, alias) = *ty.kind() else { - break; - }; - - let new_infer_ty = self.infcx.next_ty_var(TypeVariableOrigin { - kind: TypeVariableOriginKind::NormalizeProjectionType, - span: self.cause.span, - }); - let obligation = Obligation::new( - self.infcx.tcx, - self.cause.clone(), - self.param_env, - ty::NormalizesTo { alias, term: new_infer_ty.into() }, - ); - if self.infcx.predicate_may_hold(&obligation) { - fulfill_cx.register_predicate_obligation(self.infcx, obligation); - let errors = fulfill_cx.select_where_possible(self.infcx); - if !errors.is_empty() { - return Err(errors); - } - ty = self.infcx.resolve_vars_if_possible(new_infer_ty); - } else { - break; - } + // FIXME(-Znext-solver): Should we resolve opaques here? + let ty::Alias(ty::Projection | ty::Inherent | ty::Weak, _) = *ty.kind() else { + return Ok(ty); + }; + + let new_infer_ty = self.infcx.next_ty_var(TypeVariableOrigin { + kind: TypeVariableOriginKind::NormalizeProjectionType, + span: self.cause.span, + }); + + // We simply emit an `alias-eq` goal here, since that will take care of + // normalizing the LHS of the projection until it is a rigid projection + // (or a not-yet-defined opaque in scope). + let obligation = Obligation::new( + self.infcx.tcx, + self.cause.clone(), + self.param_env, + ty::PredicateKind::AliasRelate( + ty.into(), + new_infer_ty.into(), + ty::AliasRelationDirection::Equate, + ), + ); + + fulfill_cx.register_predicate_obligation(self.infcx, obligation); + let errors = fulfill_cx.select_where_possible(self.infcx); + if !errors.is_empty() { + return Err(errors); } - Ok(ty) + Ok(self.infcx.resolve_vars_if_possible(new_infer_ty)) } else { Ok(self.normalize(ty).into_value_registering_obligations(self.infcx, fulfill_cx)) } diff --git a/compiler/rustc_trait_selection/src/traits/util.rs b/compiler/rustc_trait_selection/src/traits/util.rs index 575010ff46d..19eae93df9c 100644 --- a/compiler/rustc_trait_selection/src/traits/util.rs +++ b/compiler/rustc_trait_selection/src/traits/util.rs @@ -264,13 +264,26 @@ pub fn closure_trait_ref_and_return_type<'tcx>( self_ty: Ty<'tcx>, sig: ty::PolyFnSig<'tcx>, tuple_arguments: TupleArgumentsFlag, + fn_host_effect: ty::Const<'tcx>, ) -> ty::Binder<'tcx, (ty::TraitRef<'tcx>, Ty<'tcx>)> { assert!(!self_ty.has_escaping_bound_vars()); let arguments_tuple = match tuple_arguments { TupleArgumentsFlag::No => sig.skip_binder().inputs()[0], TupleArgumentsFlag::Yes => Ty::new_tup(tcx, sig.skip_binder().inputs()), }; - let trait_ref = ty::TraitRef::new(tcx, fn_trait_def_id, [self_ty, arguments_tuple]); + let trait_ref = if tcx.generics_of(fn_trait_def_id).host_effect_index.is_some() { + ty::TraitRef::new( + tcx, + fn_trait_def_id, + [ + ty::GenericArg::from(self_ty), + ty::GenericArg::from(arguments_tuple), + ty::GenericArg::from(fn_host_effect), + ], + ) + } else { + ty::TraitRef::new(tcx, fn_trait_def_id, [self_ty, arguments_tuple]) + }; sig.map_bound(|sig| (trait_ref, sig.output())) } diff --git a/compiler/rustc_ty_utils/src/abi.rs b/compiler/rustc_ty_utils/src/abi.rs index a5f11ca23e1..86501b5a72d 100644 --- a/compiler/rustc_ty_utils/src/abi.rs +++ b/compiler/rustc_ty_utils/src/abi.rs @@ -114,13 +114,13 @@ fn fn_sig_for_fn_abi<'tcx>( let pin_adt_ref = tcx.adt_def(pin_did); let pin_args = tcx.mk_args(&[env_ty.into()]); let env_ty = match coroutine_kind { - hir::CoroutineKind::Gen(_) => { + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _) => { // Iterator::next doesn't accept a pinned argument, // unlike for all other coroutine kinds. env_ty } - hir::CoroutineKind::Async(_) - | hir::CoroutineKind::AsyncGen(_) + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _) + | hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _) | hir::CoroutineKind::Coroutine => Ty::new_adt(tcx, pin_adt_ref, pin_args), }; @@ -131,7 +131,7 @@ fn fn_sig_for_fn_abi<'tcx>( // or the `Iterator::next(...) -> Option` function in case this is a // special coroutine backing a gen construct. let (resume_ty, ret_ty) = match coroutine_kind { - hir::CoroutineKind::Async(_) => { + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Async, _) => { // The signature should be `Future::poll(_, &mut Context<'_>) -> Poll<Output>` assert_eq!(sig.yield_ty, tcx.types.unit); @@ -156,7 +156,7 @@ fn fn_sig_for_fn_abi<'tcx>( (Some(context_mut_ref), ret_ty) } - hir::CoroutineKind::Gen(_) => { + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::Gen, _) => { // The signature should be `Iterator::next(_) -> Option<Yield>` let option_did = tcx.require_lang_item(LangItem::Option, None); let option_adt_ref = tcx.adt_def(option_did); @@ -168,7 +168,7 @@ fn fn_sig_for_fn_abi<'tcx>( (None, ret_ty) } - hir::CoroutineKind::AsyncGen(_) => { + hir::CoroutineKind::Desugared(hir::CoroutineDesugaring::AsyncGen, _) => { // The signature should be // `AsyncIterator::poll_next(_, &mut Context<'_>) -> Poll<Option<Output>>` assert_eq!(sig.return_ty, tcx.types.unit); diff --git a/compiler/stable_mir/src/abi.rs b/compiler/stable_mir/src/abi.rs new file mode 100644 index 00000000000..53dac6abefb --- /dev/null +++ b/compiler/stable_mir/src/abi.rs @@ -0,0 +1,283 @@ +use crate::compiler_interface::with; +use crate::mir::FieldIdx; +use crate::ty::{Align, IndexedVal, Size, Ty, VariantIdx}; +use crate::Opaque; +use std::num::NonZeroUsize; +use std::ops::RangeInclusive; + +/// A function ABI definition. +#[derive(Clone, Debug, PartialEq, Eq, Hash)] +pub struct FnAbi { + /// The types of each argument. + pub args: Vec<ArgAbi>, + + /// The expected return type. + pub ret: ArgAbi, + + /// The count of non-variadic arguments. + /// + /// Should only be different from `args.len()` when a function is a C variadic function. + pub fixed_count: u32, + + /// The ABI convention. + pub conv: CallConvention, + + /// Whether this is a variadic C function, + pub c_variadic: bool, +} + +/// Information about the ABI of a function's argument, or return value. +#[derive(Clone, Debug, PartialEq, Eq, Hash)] +pub struct ArgAbi { + pub ty: Ty, + pub layout: Layout, + pub mode: PassMode, +} + +/// How a function argument should be passed in to the target function. +#[derive(Clone, Debug, PartialEq, Eq, Hash)] +pub enum PassMode { + /// Ignore the argument. + /// + /// The argument is either uninhabited or a ZST. + Ignore, + /// Pass the argument directly. + /// + /// The argument has a layout abi of `Scalar` or `Vector`. + Direct(Opaque), + /// Pass a pair's elements directly in two arguments. + /// + /// The argument has a layout abi of `ScalarPair`. + Pair(Opaque, Opaque), + /// Pass the argument after casting it. + Cast { pad_i32: bool, cast: Opaque }, + /// Pass the argument indirectly via a hidden pointer. + Indirect { attrs: Opaque, meta_attrs: Opaque, on_stack: bool }, +} + +/// The layout of a type, alongside the type itself. +#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] +pub struct TyAndLayout { + pub ty: Ty, + pub layout: Layout, +} + +/// The layout of a type in memory. +#[derive(Clone, Debug, PartialEq, Eq, Hash)] +pub struct LayoutShape { + /// The fields location withing the layout + pub fields: FieldsShape, + + /// Encodes information about multi-variant layouts. + /// Even with `Multiple` variants, a layout still has its own fields! Those are then + /// shared between all variants. + /// + /// To access all fields of this layout, both `fields` and the fields of the active variant + /// must be taken into account. + pub variants: VariantsShape, + + /// The `abi` defines how this data is passed between functions. + pub abi: ValueAbi, + + /// The ABI mandated alignment in bytes. + pub abi_align: Align, + + /// The size of this layout in bytes. + pub size: Size, +} + +impl LayoutShape { + /// Returns `true` if the layout corresponds to an unsized type. + #[inline] + pub fn is_unsized(&self) -> bool { + self.abi.is_unsized() + } + + #[inline] + pub fn is_sized(&self) -> bool { + !self.abi.is_unsized() + } + + /// Returns `true` if the type is sized and a 1-ZST (meaning it has size 0 and alignment 1). + pub fn is_1zst(&self) -> bool { + self.is_sized() && self.size == 0 && self.abi_align == 1 + } +} + +#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] +pub struct Layout(usize); + +impl Layout { + pub fn shape(self) -> LayoutShape { + with(|cx| cx.layout_shape(self)) + } +} + +impl IndexedVal for Layout { + fn to_val(index: usize) -> Self { + Layout(index) + } + fn to_index(&self) -> usize { + self.0 + } +} + +/// Describes how the fields of a type are shaped in memory. +#[derive(Clone, Debug, PartialEq, Eq, Hash)] +pub enum FieldsShape { + /// Scalar primitives and `!`, which never have fields. + Primitive, + + /// All fields start at no offset. The `usize` is the field count. + Union(NonZeroUsize), + + /// Array/vector-like placement, with all fields of identical types. + Array { stride: Size, count: u64 }, + + /// Struct-like placement, with precomputed offsets. + /// + /// Fields are guaranteed to not overlap, but note that gaps + /// before, between and after all the fields are NOT always + /// padding, and as such their contents may not be discarded. + /// For example, enum variants leave a gap at the start, + /// where the discriminant field in the enum layout goes. + Arbitrary { + /// Offsets for the first byte of each field, + /// ordered to match the source definition order. + /// I.e.: It follows the same order as [crate::ty::VariantDef::fields()]. + /// This vector does not go in increasing order. + offsets: Vec<Size>, + }, +} + +impl FieldsShape { + pub fn fields_by_offset_order(&self) -> Vec<FieldIdx> { + match self { + FieldsShape::Primitive => vec![], + FieldsShape::Union(_) | FieldsShape::Array { .. } => (0..self.count()).collect(), + FieldsShape::Arbitrary { offsets, .. } => { + let mut indices = (0..offsets.len()).collect::<Vec<_>>(); + indices.sort_by_key(|idx| offsets[*idx]); + indices + } + } + } + + pub fn count(&self) -> usize { + match self { + FieldsShape::Primitive => 0, + FieldsShape::Union(count) => count.get(), + FieldsShape::Array { count, .. } => *count as usize, + FieldsShape::Arbitrary { offsets, .. } => offsets.len(), + } + } +} + +#[derive(Clone, Debug, PartialEq, Eq, Hash)] +pub enum VariantsShape { + /// Single enum variants, structs/tuples, unions, and all non-ADTs. + Single { index: VariantIdx }, + + /// Enum-likes with more than one inhabited variant: each variant comes with + /// a *discriminant* (usually the same as the variant index but the user can + /// assign explicit discriminant values). That discriminant is encoded + /// as a *tag* on the machine. The layout of each variant is + /// a struct, and they all have space reserved for the tag. + /// For enums, the tag is the sole field of the layout. + Multiple { + tag: Scalar, + tag_encoding: TagEncoding, + tag_field: usize, + variants: Vec<LayoutShape>, + }, +} + +#[derive(Clone, Debug, PartialEq, Eq, Hash)] +pub enum TagEncoding { + /// The tag directly stores the discriminant, but possibly with a smaller layout + /// (so converting the tag to the discriminant can require sign extension). + Direct, + + /// Niche (values invalid for a type) encoding the discriminant: + /// Discriminant and variant index coincide. + /// The variant `untagged_variant` contains a niche at an arbitrary + /// offset (field `tag_field` of the enum), which for a variant with + /// discriminant `d` is set to + /// `(d - niche_variants.start).wrapping_add(niche_start)`. + /// + /// For example, `Option<(usize, &T)>` is represented such that + /// `None` has a null pointer for the second tuple field, and + /// `Some` is the identity function (with a non-null reference). + Niche { + untagged_variant: VariantIdx, + niche_variants: RangeInclusive<VariantIdx>, + niche_start: u128, + }, +} + +/// Describes how values of the type are passed by target ABIs, +/// in terms of categories of C types there are ABI rules for. +#[derive(Clone, Debug, PartialEq, Eq, Hash)] +pub enum ValueAbi { + Uninhabited, + Scalar(Scalar), + ScalarPair(Scalar, Scalar), + Vector { + element: Scalar, + count: u64, + }, + Aggregate { + /// If true, the size is exact, otherwise it's only a lower bound. + sized: bool, + }, +} + +impl ValueAbi { + /// Returns `true` if the layout corresponds to an unsized type. + pub fn is_unsized(&self) -> bool { + match *self { + ValueAbi::Uninhabited + | ValueAbi::Scalar(_) + | ValueAbi::ScalarPair(..) + | ValueAbi::Vector { .. } => false, + ValueAbi::Aggregate { sized } => !sized, + } + } +} + +/// We currently do not support `Scalar`, and use opaque instead. +type Scalar = Opaque; + +/// General language calling conventions. +#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] +pub enum CallConvention { + C, + Rust, + + Cold, + PreserveMost, + PreserveAll, + + // Target-specific calling conventions. + ArmAapcs, + CCmseNonSecureCall, + + Msp430Intr, + + PtxKernel, + + X86Fastcall, + X86Intr, + X86Stdcall, + X86ThisCall, + X86VectorCall, + + X86_64SysV, + X86_64Win64, + + AmdGpuKernel, + AvrInterrupt, + AvrNonBlockingInterrupt, + + RiscvInterrupt, +} diff --git a/compiler/stable_mir/src/compiler_interface.rs b/compiler/stable_mir/src/compiler_interface.rs index 57c60b70d8a..f52e506059b 100644 --- a/compiler/stable_mir/src/compiler_interface.rs +++ b/compiler/stable_mir/src/compiler_interface.rs @@ -5,6 +5,7 @@ use std::cell::Cell; +use crate::abi::{FnAbi, Layout, LayoutShape}; use crate::mir::alloc::{AllocId, GlobalAlloc}; use crate::mir::mono::{Instance, InstanceDef, StaticDef}; use crate::mir::Body; @@ -124,6 +125,9 @@ pub trait Context { /// Get the instance type with generic substitutions applied and lifetimes erased. fn instance_ty(&self, instance: InstanceDef) -> Ty; + /// Get the instantiation types. + fn instance_args(&self, def: InstanceDef) -> GenericArgs; + /// Get the instance. fn instance_def_id(&self, instance: InstanceDef) -> DefId; @@ -173,6 +177,15 @@ pub trait Context { /// Return information about the target machine. fn target_info(&self) -> MachineInfo; + + /// Get an instance ABI. + fn instance_abi(&self, def: InstanceDef) -> Result<FnAbi, Error>; + + /// Get the layout of a type. + fn ty_layout(&self, ty: Ty) -> Result<Layout, Error>; + + /// Get the layout shape. + fn layout_shape(&self, id: Layout) -> LayoutShape; } // A thread local variable that stores a pointer to the tables mapping between TyCtxt diff --git a/compiler/stable_mir/src/lib.rs b/compiler/stable_mir/src/lib.rs index 8c66bfb2e98..9194f1e6bdb 100644 --- a/compiler/stable_mir/src/lib.rs +++ b/compiler/stable_mir/src/lib.rs @@ -33,6 +33,7 @@ use crate::mir::Body; use crate::mir::Mutability; use crate::ty::{ImplDef, ImplTrait, IndexedVal, Span, TraitDecl, TraitDef, Ty}; +pub mod abi; #[macro_use] pub mod crate_def; pub mod compiler_interface; @@ -90,6 +91,13 @@ pub enum ItemKind { Fn, Static, Const, + Ctor(CtorKind), +} + +#[derive(Copy, Clone, PartialEq, Eq, Debug, Hash)] +pub enum CtorKind { + Const, + Fn, } pub type Filename = String; diff --git a/compiler/stable_mir/src/mir/body.rs b/compiler/stable_mir/src/mir/body.rs index 5023af9ab79..89d75569ce3 100644 --- a/compiler/stable_mir/src/mir/body.rs +++ b/compiler/stable_mir/src/mir/body.rs @@ -27,6 +27,9 @@ pub struct Body { /// /// This is used for the "rust-call" ABI such as closures. pub(super) spread_arg: Option<Local>, + + /// The span that covers the entire function body. + pub span: Span, } pub type BasicBlockIdx = usize; @@ -42,6 +45,7 @@ impl Body { arg_count: usize, var_debug_info: Vec<VarDebugInfo>, spread_arg: Option<Local>, + span: Span, ) -> Self { // If locals doesn't contain enough entries, it can lead to panics in // `ret_local`, `arg_locals`, and `inner_locals`. @@ -49,7 +53,7 @@ impl Body { locals.len() > arg_count, "A Body must contain at least a local for the return value and each of the function's arguments" ); - Self { blocks, locals, arg_count, var_debug_info, spread_arg } + Self { blocks, locals, arg_count, var_debug_info, spread_arg, span } } /// Return local that holds this function's return value. @@ -284,27 +288,33 @@ impl AssertMessage { AssertMessage::ResumedAfterReturn(CoroutineKind::Coroutine) => { Ok("coroutine resumed after completion") } - AssertMessage::ResumedAfterReturn(CoroutineKind::Async(_)) => { - Ok("`async fn` resumed after completion") - } - AssertMessage::ResumedAfterReturn(CoroutineKind::Gen(_)) => { - Ok("`async gen fn` resumed after completion") - } - AssertMessage::ResumedAfterReturn(CoroutineKind::AsyncGen(_)) => { - Ok("`gen fn` should just keep returning `AssertMessage::None` after completion") - } + AssertMessage::ResumedAfterReturn(CoroutineKind::Desugared( + CoroutineDesugaring::Async, + _, + )) => Ok("`async fn` resumed after completion"), + AssertMessage::ResumedAfterReturn(CoroutineKind::Desugared( + CoroutineDesugaring::Gen, + _, + )) => Ok("`async gen fn` resumed after completion"), + AssertMessage::ResumedAfterReturn(CoroutineKind::Desugared( + CoroutineDesugaring::AsyncGen, + _, + )) => Ok("`gen fn` should just keep returning `AssertMessage::None` after completion"), AssertMessage::ResumedAfterPanic(CoroutineKind::Coroutine) => { Ok("coroutine resumed after panicking") } - AssertMessage::ResumedAfterPanic(CoroutineKind::Async(_)) => { - Ok("`async fn` resumed after panicking") - } - AssertMessage::ResumedAfterPanic(CoroutineKind::Gen(_)) => { - Ok("`async gen fn` resumed after panicking") - } - AssertMessage::ResumedAfterPanic(CoroutineKind::AsyncGen(_)) => { - Ok("`gen fn` should just keep returning `AssertMessage::None` after panicking") - } + AssertMessage::ResumedAfterPanic(CoroutineKind::Desugared( + CoroutineDesugaring::Async, + _, + )) => Ok("`async fn` resumed after panicking"), + AssertMessage::ResumedAfterPanic(CoroutineKind::Desugared( + CoroutineDesugaring::Gen, + _, + )) => Ok("`async gen fn` resumed after panicking"), + AssertMessage::ResumedAfterPanic(CoroutineKind::Desugared( + CoroutineDesugaring::AsyncGen, + _, + )) => Ok("`gen fn` should just keep returning `AssertMessage::None` after panicking"), AssertMessage::BoundsCheck { .. } => Ok("index out of bounds"), AssertMessage::MisalignedPointerDereference { .. } => { @@ -388,10 +398,8 @@ pub enum UnOp { #[derive(Clone, Debug, Eq, PartialEq)] pub enum CoroutineKind { - Async(CoroutineSource), + Desugared(CoroutineDesugaring, CoroutineSource), Coroutine, - Gen(CoroutineSource), - AsyncGen(CoroutineSource), } #[derive(Copy, Clone, Debug, Eq, PartialEq)] @@ -401,6 +409,15 @@ pub enum CoroutineSource { Fn, } +#[derive(Copy, Clone, Debug, Eq, PartialEq)] +pub enum CoroutineDesugaring { + Async, + + Gen, + + AsyncGen, +} + pub(crate) type LocalDefId = Opaque; /// The rustc coverage data structures are heavily tied to internal details of the /// coverage implementation that are likely to change, and are unlikely to be diff --git a/compiler/stable_mir/src/mir/mono.rs b/compiler/stable_mir/src/mir/mono.rs index c126de23c4b..6c791ae8552 100644 --- a/compiler/stable_mir/src/mir/mono.rs +++ b/compiler/stable_mir/src/mir/mono.rs @@ -1,3 +1,4 @@ +use crate::abi::FnAbi; use crate::crate_def::CrateDef; use crate::mir::Body; use crate::ty::{Allocation, ClosureDef, ClosureKind, FnDef, GenericArgs, IndexedVal, Ty}; @@ -34,6 +35,11 @@ pub enum InstanceKind { } impl Instance { + /// Get the arguments this instance was instantiated with. + pub fn args(&self) -> GenericArgs { + with(|cx| cx.instance_args(self.def)) + } + /// Get the body of an Instance. The body will be eagerly monomorphized. pub fn body(&self) -> Option<Body> { with(|context| context.instance_body(self.def)) @@ -56,6 +62,11 @@ impl Instance { with(|context| context.instance_ty(self.def)) } + /// Retrieve information about this instance binary interface. + pub fn fn_abi(&self) -> Result<FnAbi, Error> { + with(|cx| cx.instance_abi(self.def)) + } + /// Retrieve the instance's mangled name used for calling the given instance. /// /// This will also look up the correct name of instances from upstream crates. @@ -142,6 +153,7 @@ impl Debug for Instance { f.debug_struct("Instance") .field("kind", &self.kind) .field("def", &self.mangled_name()) + .field("args", &self.args()) .finish() } } diff --git a/compiler/stable_mir/src/mir/visit.rs b/compiler/stable_mir/src/mir/visit.rs index 98336a72900..ab57ff0f8f5 100644 --- a/compiler/stable_mir/src/mir/visit.rs +++ b/compiler/stable_mir/src/mir/visit.rs @@ -133,7 +133,7 @@ pub trait MirVisitor { } fn super_body(&mut self, body: &Body) { - let Body { blocks, locals: _, arg_count, var_debug_info, spread_arg: _ } = body; + let Body { blocks, locals: _, arg_count, var_debug_info, spread_arg: _, span } = body; for bb in blocks { self.visit_basic_block(bb); @@ -153,6 +153,8 @@ pub trait MirVisitor { for info in var_debug_info.iter() { self.visit_var_debug_info(info); } + + self.visit_span(span) } fn super_basic_block(&mut self, bb: &BasicBlock) { diff --git a/compiler/stable_mir/src/ty.rs b/compiler/stable_mir/src/ty.rs index 4807a9028eb..1d4d7b6d352 100644 --- a/compiler/stable_mir/src/ty.rs +++ b/compiler/stable_mir/src/ty.rs @@ -3,6 +3,7 @@ use super::{ mir::{Body, Mutability}, with, DefId, Error, Symbol, }; +use crate::abi::Layout; use crate::crate_def::CrateDef; use crate::mir::alloc::{read_target_int, read_target_uint, AllocId}; use crate::target::MachineInfo; @@ -85,6 +86,11 @@ impl Ty { pub fn unsigned_ty(inner: UintTy) -> Ty { Ty::from_rigid_kind(RigidTy::Uint(inner)) } + + /// Get a type layout. + pub fn layout(self) -> Result<Layout, Error> { + with(|cx| cx.ty_layout(self)) + } } impl Ty { diff --git a/config.example.toml b/config.example.toml index 14e0b9d521f..4cf7c1e8199 100644 --- a/config.example.toml +++ b/config.example.toml @@ -29,8 +29,8 @@ # - A change in the default values # # If `change-id` does not match the version that is currently running, -# `x.py` will prompt you to update it and check the related PR for more details. -change-id = 118703 +# `x.py` will inform you about the changes made on bootstrap. +# change-id = <latest change id in src/bootstrap/src/utils/change_tracker.rs> # ============================================================================= # Tweaking how LLVM is compiled @@ -323,6 +323,7 @@ change-id = 118703 # "rustdoc", # "rustfmt", # "rust-analyzer", +# "rust-analyzer-proc-macro-srv", # "analysis", # "src", # "rust-demangler", # if profiler = true diff --git a/library/alloc/src/collections/vec_deque/mod.rs b/library/alloc/src/collections/vec_deque/mod.rs index 4ef8af9b034..d062587b8f5 100644 --- a/library/alloc/src/collections/vec_deque/mod.rs +++ b/library/alloc/src/collections/vec_deque/mod.rs @@ -491,12 +491,12 @@ impl<T, A: Allocator> VecDeque<T, A> { // A [o o o o o o o . . . . . . . . . ] // L H // [o o o o o o o o ] - // H L - // B [. . . o o o o o o o . . . . . . ] + // H L + // B [. . . o o o o o o o o . . . . . ] // L H // [o o o o o o o o ] - // L H - // C [o o o o o . . . . . . . . . o o ] + // L H + // C [o o o o o o . . . . . . . . o o ] // can't use is_contiguous() because the capacity is already updated. if self.head <= old_capacity - self.len { diff --git a/library/alloc/src/raw_vec.rs b/library/alloc/src/raw_vec.rs index 817b93720ce..99ec68f5aa5 100644 --- a/library/alloc/src/raw_vec.rs +++ b/library/alloc/src/raw_vec.rs @@ -25,6 +25,16 @@ enum AllocInit { Zeroed, } +#[repr(transparent)] +#[cfg_attr(target_pointer_width = "16", rustc_layout_scalar_valid_range_end(0x7fff))] +#[cfg_attr(target_pointer_width = "32", rustc_layout_scalar_valid_range_end(0x7fff_ffff))] +#[cfg_attr(target_pointer_width = "64", rustc_layout_scalar_valid_range_end(0x7fff_ffff_ffff_ffff))] +struct Cap(usize); + +impl Cap { + const ZERO: Cap = unsafe { Cap(0) }; +} + /// A low-level utility for more ergonomically allocating, reallocating, and deallocating /// a buffer of memory on the heap without having to worry about all the corner cases /// involved. This type is excellent for building your own data structures like Vec and VecDeque. @@ -50,7 +60,12 @@ enum AllocInit { #[allow(missing_debug_implementations)] pub(crate) struct RawVec<T, A: Allocator = Global> { ptr: Unique<T>, - cap: usize, + /// Never used for ZSTs; it's `capacity()`'s responsibility to return usize::MAX in that case. + /// + /// # Safety + /// + /// `cap` must be in the `0..=isize::MAX` range. + cap: Cap, alloc: A, } @@ -119,7 +134,7 @@ impl<T, A: Allocator> RawVec<T, A> { /// the returned `RawVec`. pub const fn new_in(alloc: A) -> Self { // `cap: 0` means "unallocated". zero-sized types are ignored. - Self { ptr: Unique::dangling(), cap: 0, alloc } + Self { ptr: Unique::dangling(), cap: Cap::ZERO, alloc } } /// Like `with_capacity`, but parameterized over the choice of @@ -194,7 +209,7 @@ impl<T, A: Allocator> RawVec<T, A> { // here should change to `ptr.len() / mem::size_of::<T>()`. Self { ptr: unsafe { Unique::new_unchecked(ptr.cast().as_ptr()) }, - cap: capacity, + cap: unsafe { Cap(capacity) }, alloc, } } @@ -207,12 +222,13 @@ impl<T, A: Allocator> RawVec<T, A> { /// The `ptr` must be allocated (via the given allocator `alloc`), and with the given /// `capacity`. /// The `capacity` cannot exceed `isize::MAX` for sized types. (only a concern on 32-bit - /// systems). ZST vectors may have a capacity up to `usize::MAX`. + /// systems). For ZSTs capacity is ignored. /// If the `ptr` and `capacity` come from a `RawVec` created via `alloc`, then this is /// guaranteed. #[inline] pub unsafe fn from_raw_parts_in(ptr: *mut T, capacity: usize, alloc: A) -> Self { - Self { ptr: unsafe { Unique::new_unchecked(ptr) }, cap: capacity, alloc } + let cap = if T::IS_ZST { Cap::ZERO } else { unsafe { Cap(capacity) } }; + Self { ptr: unsafe { Unique::new_unchecked(ptr) }, cap, alloc } } /// Gets a raw pointer to the start of the allocation. Note that this is @@ -228,7 +244,7 @@ impl<T, A: Allocator> RawVec<T, A> { /// This will always be `usize::MAX` if `T` is zero-sized. #[inline(always)] pub fn capacity(&self) -> usize { - if T::IS_ZST { usize::MAX } else { self.cap } + if T::IS_ZST { usize::MAX } else { self.cap.0 } } /// Returns a shared reference to the allocator backing this `RawVec`. @@ -237,7 +253,7 @@ impl<T, A: Allocator> RawVec<T, A> { } fn current_memory(&self) -> Option<(NonNull<u8>, Layout)> { - if T::IS_ZST || self.cap == 0 { + if T::IS_ZST || self.cap.0 == 0 { None } else { // We could use Layout::array here which ensures the absence of isize and usize overflows @@ -247,7 +263,7 @@ impl<T, A: Allocator> RawVec<T, A> { let _: () = const { assert!(mem::size_of::<T>() % mem::align_of::<T>() == 0) }; unsafe { let align = mem::align_of::<T>(); - let size = mem::size_of::<T>().unchecked_mul(self.cap); + let size = mem::size_of::<T>().unchecked_mul(self.cap.0); let layout = Layout::from_size_align_unchecked(size, align); Some((self.ptr.cast().into(), layout)) } @@ -375,12 +391,15 @@ impl<T, A: Allocator> RawVec<T, A> { additional > self.capacity().wrapping_sub(len) } - fn set_ptr_and_cap(&mut self, ptr: NonNull<[u8]>, cap: usize) { + /// # Safety: + /// + /// `cap` must not exceed `isize::MAX`. + unsafe fn set_ptr_and_cap(&mut self, ptr: NonNull<[u8]>, cap: usize) { // Allocators currently return a `NonNull<[u8]>` whose length matches // the size requested. If that ever changes, the capacity here should // change to `ptr.len() / mem::size_of::<T>()`. self.ptr = unsafe { Unique::new_unchecked(ptr.cast().as_ptr()) }; - self.cap = cap; + self.cap = unsafe { Cap(cap) }; } // This method is usually instantiated many times. So we want it to be as @@ -405,14 +424,15 @@ impl<T, A: Allocator> RawVec<T, A> { // This guarantees exponential growth. The doubling cannot overflow // because `cap <= isize::MAX` and the type of `cap` is `usize`. - let cap = cmp::max(self.cap * 2, required_cap); + let cap = cmp::max(self.cap.0 * 2, required_cap); let cap = cmp::max(Self::MIN_NON_ZERO_CAP, cap); let new_layout = Layout::array::<T>(cap); // `finish_grow` is non-generic over `T`. let ptr = finish_grow(new_layout, self.current_memory(), &mut self.alloc)?; - self.set_ptr_and_cap(ptr, cap); + // SAFETY: finish_grow would have resulted in a capacity overflow if we tried to allocate more than isize::MAX items + unsafe { self.set_ptr_and_cap(ptr, cap) }; Ok(()) } @@ -431,7 +451,10 @@ impl<T, A: Allocator> RawVec<T, A> { // `finish_grow` is non-generic over `T`. let ptr = finish_grow(new_layout, self.current_memory(), &mut self.alloc)?; - self.set_ptr_and_cap(ptr, cap); + // SAFETY: finish_grow would have resulted in a capacity overflow if we tried to allocate more than isize::MAX items + unsafe { + self.set_ptr_and_cap(ptr, cap); + } Ok(()) } @@ -449,7 +472,7 @@ impl<T, A: Allocator> RawVec<T, A> { if cap == 0 { unsafe { self.alloc.deallocate(ptr, layout) }; self.ptr = Unique::dangling(); - self.cap = 0; + self.cap = Cap::ZERO; } else { let ptr = unsafe { // `Layout::array` cannot overflow here because it would have @@ -460,7 +483,10 @@ impl<T, A: Allocator> RawVec<T, A> { .shrink(ptr, layout, new_layout) .map_err(|_| AllocError { layout: new_layout, non_exhaustive: () })? }; - self.set_ptr_and_cap(ptr, cap); + // SAFETY: if the allocation is valid, then the capacity is too + unsafe { + self.set_ptr_and_cap(ptr, cap); + } } Ok(()) } diff --git a/library/alloc/src/raw_vec/tests.rs b/library/alloc/src/raw_vec/tests.rs index ff322f0da97..f8cada01c03 100644 --- a/library/alloc/src/raw_vec/tests.rs +++ b/library/alloc/src/raw_vec/tests.rs @@ -1,4 +1,5 @@ use super::*; +use core::mem::size_of; use std::cell::Cell; #[test] @@ -161,3 +162,11 @@ fn zst_reserve_exact_panic() { v.reserve_exact(101, usize::MAX - 100); } + +#[test] +fn niches() { + let baseline = size_of::<RawVec<u8>>(); + assert_eq!(size_of::<Option<RawVec<u8>>>(), baseline); + assert_eq!(size_of::<Option<Option<RawVec<u8>>>>(), baseline); + assert_eq!(size_of::<Option<Option<Option<RawVec<u8>>>>>(), baseline); +} diff --git a/library/alloc/src/rc.rs b/library/alloc/src/rc.rs index 62179756850..59f3a50ddb7 100644 --- a/library/alloc/src/rc.rs +++ b/library/alloc/src/rc.rs @@ -1768,7 +1768,7 @@ impl<T: Clone, A: Allocator + Clone> Rc<T, A> { /// assert!(ptr::eq(ptr, inner.as_ptr())); /// ``` #[inline] - #[stable(feature = "arc_unwrap_or_clone", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "arc_unwrap_or_clone", since = "1.76.0")] pub fn unwrap_or_clone(this: Self) -> T { Rc::try_unwrap(this).unwrap_or_else(|rc| (*rc).clone()) } diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs index e2e836bb975..85df491636a 100644 --- a/library/alloc/src/sync.rs +++ b/library/alloc/src/sync.rs @@ -2194,7 +2194,7 @@ impl<T: Clone, A: Allocator + Clone> Arc<T, A> { /// assert!(ptr::eq(ptr, inner.as_ptr())); /// ``` #[inline] - #[stable(feature = "arc_unwrap_or_clone", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "arc_unwrap_or_clone", since = "1.76.0")] pub fn unwrap_or_clone(this: Self) -> T { Arc::try_unwrap(this).unwrap_or_else(|arc| (*arc).clone()) } diff --git a/library/core/src/any.rs b/library/core/src/any.rs index c82984d5c6b..e8f00e8760e 100644 --- a/library/core/src/any.rs +++ b/library/core/src/any.rs @@ -729,7 +729,7 @@ pub const fn type_name<T: ?Sized>() -> &'static str { /// assert!(type_name_of_val(&y).contains("f32")); /// ``` #[must_use] -#[stable(feature = "type_name_of_val", since = "CURRENT_RUSTC_VERSION")] +#[stable(feature = "type_name_of_val", since = "1.76.0")] #[rustc_const_unstable(feature = "const_type_name", issue = "63084")] pub const fn type_name_of_val<T: ?Sized>(_val: &T) -> &'static str { type_name::<T>() diff --git a/library/core/src/async_iter/async_iter.rs b/library/core/src/async_iter/async_iter.rs index 8a45bd36f7a..db71a286b6d 100644 --- a/library/core/src/async_iter/async_iter.rs +++ b/library/core/src/async_iter/async_iter.rs @@ -13,7 +13,7 @@ use crate::task::{Context, Poll}; #[unstable(feature = "async_iterator", issue = "79024")] #[must_use = "async iterators do nothing unless polled"] #[doc(alias = "Stream")] -#[cfg_attr(not(bootstrap), lang = "async_iterator")] +#[lang = "async_iterator"] pub trait AsyncIterator { /// The type of items yielded by the async iterator. type Item; @@ -47,6 +47,7 @@ pub trait AsyncIterator { /// Rust's usual rules apply: calls must never cause undefined behavior /// (memory corruption, incorrect use of `unsafe` functions, or the like), /// regardless of the async iterator's state. + #[cfg_attr(not(bootstrap), lang = "async_iterator_poll_next")] fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>; /// Returns the bounds on the remaining length of the async iterator. @@ -116,7 +117,7 @@ impl<T> Poll<Option<T>> { /// A helper function for internal desugaring -- produces `Ready(Some(t))`, /// which corresponds to the async iterator yielding a value. #[unstable(feature = "async_gen_internals", issue = "none")] - #[cfg_attr(not(bootstrap), lang = "AsyncGenReady")] + #[lang = "AsyncGenReady"] pub fn async_gen_ready(t: T) -> Self { Poll::Ready(Some(t)) } @@ -124,13 +125,36 @@ impl<T> Poll<Option<T>> { /// A helper constant for internal desugaring -- produces `Pending`, /// which corresponds to the async iterator pending on an `.await`. #[unstable(feature = "async_gen_internals", issue = "none")] - #[cfg_attr(not(bootstrap), lang = "AsyncGenPending")] + #[lang = "AsyncGenPending"] // FIXME(gen_blocks): This probably could be deduplicated. pub const PENDING: Self = Poll::Pending; /// A helper constant for internal desugaring -- produces `Ready(None)`, /// which corresponds to the async iterator finishing its iteration. #[unstable(feature = "async_gen_internals", issue = "none")] - #[cfg_attr(not(bootstrap), lang = "AsyncGenFinished")] + #[lang = "AsyncGenFinished"] pub const FINISHED: Self = Poll::Ready(None); } + +/// Convert something into an async iterator +#[unstable(feature = "async_iterator", issue = "79024")] +pub trait IntoAsyncIterator { + /// The type of the item yielded by the iterator + type Item; + /// The type of the resulting iterator + type IntoAsyncIter: AsyncIterator<Item = Self::Item>; + + /// Converts `self` into an async iterator + #[cfg_attr(not(bootstrap), lang = "into_async_iter_into_iter")] + fn into_async_iter(self) -> Self::IntoAsyncIter; +} + +#[unstable(feature = "async_iterator", issue = "79024")] +impl<I: AsyncIterator> IntoAsyncIterator for I { + type Item = I::Item; + type IntoAsyncIter = I; + + fn into_async_iter(self) -> Self::IntoAsyncIter { + self + } +} diff --git a/library/core/src/async_iter/mod.rs b/library/core/src/async_iter/mod.rs index 0c6f637711b..e1f1c907582 100644 --- a/library/core/src/async_iter/mod.rs +++ b/library/core/src/async_iter/mod.rs @@ -124,5 +124,5 @@ mod async_iter; mod from_iter; -pub use async_iter::AsyncIterator; +pub use async_iter::{AsyncIterator, IntoAsyncIterator}; pub use from_iter::{from_iter, FromIter}; diff --git a/library/core/src/cmp.rs b/library/core/src/cmp.rs index d7c41ac5c06..bffd3b2af97 100644 --- a/library/core/src/cmp.rs +++ b/library/core/src/cmp.rs @@ -224,13 +224,13 @@ use self::Ordering::*; append_const_msg )] #[rustc_diagnostic_item = "PartialEq"] -#[cfg_attr(not(bootstrap), const_trait)] +#[const_trait] pub trait PartialEq<Rhs: ?Sized = Self> { /// This method tests for `self` and `other` values to be equal, and is used /// by `==`. #[must_use] #[stable(feature = "rust1", since = "1.0.0")] - #[cfg_attr(not(bootstrap), rustc_diagnostic_item = "cmp_partialeq_eq")] + #[rustc_diagnostic_item = "cmp_partialeq_eq"] fn eq(&self, other: &Rhs) -> bool; /// This method tests for `!=`. The default implementation is almost always @@ -238,7 +238,7 @@ pub trait PartialEq<Rhs: ?Sized = Self> { #[inline] #[must_use] #[stable(feature = "rust1", since = "1.0.0")] - #[cfg_attr(not(bootstrap), rustc_diagnostic_item = "cmp_partialeq_ne")] + #[rustc_diagnostic_item = "cmp_partialeq_ne"] fn ne(&self, other: &Rhs) -> bool { !self.eq(other) } @@ -1417,17 +1417,7 @@ mod impls { macro_rules! partial_eq_impl { ($($t:ty)*) => ($( #[stable(feature = "rust1", since = "1.0.0")] - #[cfg(bootstrap)] - impl PartialEq for $t { - #[inline] - fn eq(&self, other: &$t) -> bool { (*self) == (*other) } - #[inline] - fn ne(&self, other: &$t) -> bool { (*self) != (*other) } - } - - #[stable(feature = "rust1", since = "1.0.0")] #[rustc_const_unstable(feature = "const_cmp", issue = "92391")] - #[cfg(not(bootstrap))] impl const PartialEq for $t { #[inline] fn eq(&self, other: &$t) -> bool { (*self) == (*other) } diff --git a/library/core/src/intrinsics.rs b/library/core/src/intrinsics.rs index 3406112ddb1..5107ba1a9e1 100644 --- a/library/core/src/intrinsics.rs +++ b/library/core/src/intrinsics.rs @@ -59,6 +59,7 @@ use crate::marker::Tuple; use crate::mem; pub mod mir; +pub mod simd; // These imports are used for simplifying intra-doc links #[allow(unused_imports)] diff --git a/library/core/src/intrinsics/simd.rs b/library/core/src/intrinsics/simd.rs new file mode 100644 index 00000000000..0fd27974dce --- /dev/null +++ b/library/core/src/intrinsics/simd.rs @@ -0,0 +1,471 @@ +//! SIMD compiler intrinsics. +//! +//! In this module, a "vector" is any `repr(simd)` type. + +extern "platform-intrinsic" { + /// Add two simd vectors elementwise. + /// + /// `T` must be a vector of integer or floating point primitive types. + pub fn simd_add<T>(x: T, y: T) -> T; + + /// Subtract `rhs` from `lhs` elementwise. + /// + /// `T` must be a vector of integer or floating point primitive types. + pub fn simd_sub<T>(lhs: T, rhs: T) -> T; + + /// Multiply two simd vectors elementwise. + /// + /// `T` must be a vector of integer or floating point primitive types. + pub fn simd_mul<T>(x: T, y: T) -> T; + + /// Divide `lhs` by `rhs` elementwise. + /// + /// `T` must be a vector of integer or floating point primitive types. + /// + /// # Safety + /// For integers, `rhs` must not contain any zero elements. + /// Additionally for signed integers, `<int>::MIN / -1` is undefined behavior. + pub fn simd_div<T>(lhs: T, rhs: T) -> T; + + /// Remainder of two vectors elementwise + /// + /// `T` must be a vector of integer or floating point primitive types. + /// + /// # Safety + /// For integers, `rhs` must not contain any zero elements. + /// Additionally for signed integers, `<int>::MIN / -1` is undefined behavior. + pub fn simd_rem<T>(lhs: T, rhs: T) -> T; + + /// Elementwise vector left shift, with UB on overflow. + /// + /// Shift `lhs` left by `rhs`, shifting in sign bits for signed types. + /// + /// `T` must be a vector of integer primitive types. + /// + /// # Safety + /// + /// Each element of `rhs` must be less than `<int>::BITS`. + pub fn simd_shl<T>(lhs: T, rhs: T) -> T; + + /// Elementwise vector right shift, with UB on overflow. + /// + /// `T` must be a vector of integer primitive types. + /// + /// Shift `lhs` right by `rhs`, shifting in sign bits for signed types. + /// + /// # Safety + /// + /// Each element of `rhs` must be less than `<int>::BITS`. + pub fn simd_shr<T>(lhs: T, rhs: T) -> T; + + /// Elementwise vector "and". + /// + /// `T` must be a vector of integer primitive types. + pub fn simd_and<T>(x: T, y: T) -> T; + + /// Elementwise vector "or". + /// + /// `T` must be a vector of integer primitive types. + pub fn simd_or<T>(x: T, y: T) -> T; + + /// Elementwise vector "exclusive or". + /// + /// `T` must be a vector of integer primitive types. + pub fn simd_xor<T>(x: T, y: T) -> T; + + /// Numerically cast a vector, elementwise. + /// + /// `T` and `U` must be vectors of integer or floating point primitive types, and must have the + /// same length. + /// + /// When casting floats to integers, the result is truncated. Out-of-bounds result lead to UB. + /// When casting integers to floats, the result is rounded. + /// Otherwise, truncates or extends the value, maintaining the sign for signed integers. + /// + /// # Safety + /// Casting from integer types is always safe. + /// Casting between two float types is also always safe. + /// + /// Casting floats to integers truncates, following the same rules as `to_int_unchecked`. + /// Specifically, each element must: + /// * Not be `NaN` + /// * Not be infinite + /// * Be representable in the return type, after truncating off its fractional part + pub fn simd_cast<T, U>(x: T) -> U; + + /// Numerically cast a vector, elementwise. + /// + /// `T` and `U` be a vectors of integer or floating point primitive types, and must have the + /// same length. + /// + /// Like `simd_cast`, but saturates float-to-integer conversions (NaN becomes 0). + /// This matches regular `as` and is always safe. + /// + /// When casting floats to integers, the result is truncated. + /// When casting integers to floats, the result is rounded. + /// Otherwise, truncates or extends the value, maintaining the sign for signed integers. + pub fn simd_as<T, U>(x: T) -> U; + + /// Elementwise negation of a vector. + /// + /// `T` must be a vector of integer or floating-point primitive types. + /// + /// Rust panics for `-<int>::Min` due to overflow, but it is not UB with this intrinsic. + pub fn simd_neg<T>(x: T) -> T; + + /// Elementwise absolute value of a vector. + /// + /// `T` must be a vector of floating-point primitive types. + pub fn simd_fabs<T>(x: T) -> T; + + /// Elementwise minimum of a vector. + /// + /// `T` must be a vector of floating-point primitive types. + /// + /// Follows IEEE-754 `minNum` semantics. + pub fn simd_fmin<T>(x: T, y: T) -> T; + + /// Elementwise maximum of a vector. + /// + /// `T` must be a vector of floating-point primitive types. + /// + /// Follows IEEE-754 `maxNum` semantics. + pub fn simd_fmax<T>(x: T, y: T) -> T; + + /// Tests elementwise equality of two vectors. + /// + /// `T` must be a vector of floating-point primitive types. + /// + /// `U` must be a vector of integers with the same number of elements and element size as `T`. + /// + /// Returns `0` for false and `!0` for true. + pub fn simd_eq<T, U>(x: T, y: T) -> U; + + /// Tests elementwise inequality equality of two vectors. + /// + /// `T` must be a vector of floating-point primitive types. + /// + /// `U` must be a vector of integers with the same number of elements and element size as `T`. + /// + /// Returns `0` for false and `!0` for true. + pub fn simd_ne<T, U>(x: T, y: T) -> U; + + /// Tests if `x` is less than `y`, elementwise. + /// + /// `T` must be a vector of floating-point primitive types. + /// + /// `U` must be a vector of integers with the same number of elements and element size as `T`. + /// + /// Returns `0` for false and `!0` for true. + pub fn simd_lt<T, U>(x: T, y: T) -> U; + + /// Tests if `x` is less than or equal to `y`, elementwise. + /// + /// `T` must be a vector of floating-point primitive types. + /// + /// `U` must be a vector of integers with the same number of elements and element size as `T`. + /// + /// Returns `0` for false and `!0` for true. + pub fn simd_le<T, U>(x: T, y: T) -> U; + + /// Tests if `x` is greater than `y`, elementwise. + /// + /// `T` must be a vector of floating-point primitive types. + /// + /// `U` must be a vector of integers with the same number of elements and element size as `T`. + /// + /// Returns `0` for false and `!0` for true. + pub fn simd_gt<T, U>(x: T, y: T) -> U; + + /// Tests if `x` is greater than or equal to `y`, elementwise. + /// + /// `T` must be a vector of floating-point primitive types. + /// + /// `U` must be a vector of integers with the same number of elements and element size as `T`. + /// + /// Returns `0` for false and `!0` for true. + pub fn simd_ge<T, U>(x: T, y: T) -> U; + + /// Shuffle two vectors by const indices. + /// + /// `T` must be a vector. + /// + /// `U` must be a const array of `i32`s. + /// + /// `V` must be a vector with the same element type as `T` and the same length as `U`. + /// + /// Concatenates `x` and `y`, then returns a new vector such that each element is selected from + /// the concatenation by the matching index in `idx`. + pub fn simd_shuffle<T, U, V>(x: T, y: T, idx: U) -> V; + + /// Read a vector of pointers. + /// + /// `T` must be a vector. + /// + /// `U` must be a vector of pointers to the element type of `T`, with the same length as `T`. + /// + /// `V` must be a vector of integers with the same length as `T` (but any element size). + /// + /// `idx` must be a constant: either naming a constant item, or an inline + /// `const {}` expression. + /// + /// For each pointer in `ptr`, if the corresponding value in `mask` is `!0`, read the pointer. + /// Otherwise if the corresponding value in `mask` is `0`, return the corresponding value from + /// `val`. + /// + /// # Safety + /// Unmasked values in `T` must be readable as if by `<ptr>::read` (e.g. aligned to the element + /// type). + /// + /// `mask` must only contain `0` or `!0` values. + pub fn simd_gather<T, U, V>(val: T, ptr: U, mask: V) -> T; + + /// Write to a vector of pointers. + /// + /// `T` must be a vector. + /// + /// `U` must be a vector of pointers to the element type of `T`, with the same length as `T`. + /// + /// `V` must be a vector of integers with the same length as `T` (but any element size). + /// + /// For each pointer in `ptr`, if the corresponding value in `mask` is `!0`, write the + /// corresponding value in `val` to the pointer. + /// Otherwise if the corresponding value in `mask` is `0`, do nothing. + /// + /// # Safety + /// Unmasked values in `T` must be writeable as if by `<ptr>::write` (e.g. aligned to the element + /// type). + /// + /// `mask` must only contain `0` or `!0` values. + pub fn simd_scatter<T, U, V>(val: T, ptr: U, mask: V); + + /// Read a vector of pointers. + /// + /// `T` must be a vector. + /// + /// `U` must be a vector of pointers to the element type of `T`, with the same length as `T`. + /// + /// `V` must be a vector of integers with the same length as `T` (but any element size). + /// + /// For each element, if the corresponding value in `mask` is `!0`, read the corresponding + /// pointer from `ptr`. + /// Otherwise if the corresponding value in `mask` is `0`, return the corresponding value from + /// `val`. + /// + /// # Safety + /// Unmasked values in `T` must be readable as if by `<ptr>::read` (e.g. aligned to the element + /// type). + /// + /// `mask` must only contain `0` or `!0` values. + pub fn simd_masked_load<V, U, T>(mask: V, ptr: U, val: T) -> T; + + /// Write to a vector of pointers. + /// + /// `T` must be a vector. + /// + /// `U` must be a vector of pointers to the element type of `T`, with the same length as `T`. + /// + /// `V` must be a vector of integers with the same length as `T` (but any element size). + /// + /// For each element, if the corresponding value in `mask` is `!0`, write the corresponding + /// value in `val` to the pointer. + /// Otherwise if the corresponding value in `mask` is `0`, do nothing. + /// + /// # Safety + /// Unmasked values in `T` must be writeable as if by `<ptr>::write` (e.g. aligned to the element + /// type). + /// + /// `mask` must only contain `0` or `!0` values. + pub fn simd_masked_store<V, U, T>(mask: V, ptr: U, val: T); + + /// Add two simd vectors elementwise, with saturation. + /// + /// `T` must be a vector of integer primitive types. + pub fn simd_saturating_add<T>(x: T, y: T) -> T; + + /// Subtract two simd vectors elementwise, with saturation. + /// + /// `T` must be a vector of integer primitive types. + /// + /// Subtract `rhs` from `lhs`. + pub fn simd_saturating_sub<T>(lhs: T, rhs: T) -> T; + + /// Add elements within a vector from left to right. + /// + /// `T` must be a vector of integer or floating-point primitive types. + /// + /// `U` must be the element type of `T`. + /// + /// Starting with the value `y`, add the elements of `x` and accumulate. + pub fn simd_reduce_add_ordered<T, U>(x: T, y: U) -> U; + + /// Multiply elements within a vector from left to right. + /// + /// `T` must be a vector of integer or floating-point primitive types. + /// + /// `U` must be the element type of `T`. + /// + /// Starting with the value `y`, multiply the elements of `x` and accumulate. + pub fn simd_reduce_mul_ordered<T, U>(x: T, y: U) -> U; + + /// Check if all mask values are true. + /// + /// `T` must be a vector of integer primitive types. + /// + /// # Safety + /// `x` must contain only `0` or `!0`. + pub fn simd_reduce_all<T>(x: T) -> bool; + + /// Check if all mask values are true. + /// + /// `T` must be a vector of integer primitive types. + /// + /// # Safety + /// `x` must contain only `0` or `!0`. + pub fn simd_reduce_any<T>(x: T) -> bool; + + /// Return the maximum element of a vector. + /// + /// `T` must be a vector of integer or floating-point primitive types. + /// + /// `U` must be the element type of `T`. + /// + /// For floating-point values, uses IEEE-754 `maxNum`. + pub fn simd_reduce_max<T, U>(x: T) -> U; + + /// Return the minimum element of a vector. + /// + /// `T` must be a vector of integer or floating-point primitive types. + /// + /// `U` must be the element type of `T`. + /// + /// For floating-point values, uses IEEE-754 `minNum`. + pub fn simd_reduce_min<T, U>(x: T) -> U; + + /// Logical "and" all elements together. + /// + /// `T` must be a vector of integer or floating-point primitive types. + /// + /// `U` must be the element type of `T`. + pub fn simd_reduce_and<T, U>(x: T) -> U; + + /// Logical "or" all elements together. + /// + /// `T` must be a vector of integer or floating-point primitive types. + /// + /// `U` must be the element type of `T`. + pub fn simd_reduce_or<T, U>(x: T) -> U; + + /// Logical "exclusive or" all elements together. + /// + /// `T` must be a vector of integer or floating-point primitive types. + /// + /// `U` must be the element type of `T`. + pub fn simd_reduce_xor<T, U>(x: T) -> U; + + /// Truncate an integer vector to a bitmask. + /// + /// `T` must be an integer vector. + /// + /// `U` must be either the smallest unsigned integer with at least as many bits as the length + /// of `T`, or the smallest array of `u8` with as many bits as the length of `T`. + /// + /// Each element is truncated to a single bit and packed into the result. + /// + /// No matter whether the output is an array or an unsigned integer, it is treated as a single + /// contiguous list of bits. The bitmask is always packed on the least-significant side of the + /// output, and padded with 0s in the most-significant bits. The order of the bits depends on + /// endianess: + /// + /// * On little endian, the least significant bit corresponds to the first vector element. + /// * On big endian, the least significant bit corresponds to the last vector element. + /// + /// For example, `[!0, 0, !0, !0]` packs to `0b1101` on little endian and `0b1011` on big + /// endian. + /// + /// To consider a larger example, `[!0, 0, 0, 0, 0, 0, 0, 0, !0, !0, 0, 0, 0, 0, !0, 0]` packs + /// to `[0b00000001, 0b01000011]` or `0b0100001100000001` on little endian, and `[0b10000000, + /// 0b11000010]` or `0b1000000011000010` on big endian. + /// + /// # Safety + /// `x` must contain only `0` and `!0`. + pub fn simd_bitmask<T, U>(x: T) -> U; + + /// Select elements from a mask. + /// + /// `M` must be an integer vector. + /// + /// `T` must be a vector with the same number of elements as `M`. + /// + /// For each element, if the corresponding value in `mask` is `!0`, select the element from + /// `if_true`. If the corresponding value in `mask` is `0`, select the element from + /// `if_false`. + /// + /// # Safety + /// `mask` must only contain `0` and `!0`. + pub fn simd_select<M, T>(mask: M, if_true: T, if_false: T) -> T; + + /// Select elements from a bitmask. + /// + /// `M` must be an unsigned integer or array of `u8`, matching `simd_bitmask`. + /// + /// `T` must be a vector. + /// + /// For each element, if the bit in `mask` is `1`, select the element from + /// `if_true`. If the corresponding bit in `mask` is `0`, select the element from + /// `if_false`. + /// + /// The bitmask bit order matches `simd_bitmask`. + /// + /// # Safety + /// Padding bits must be all zero. + pub fn simd_select_bitmask<M, T>(m: M, yes: T, no: T) -> T; + + /// Elementwise calculates the offset from a pointer vector, potentially wrapping. + /// + /// `T` must be a vector of pointers. + /// + /// `U` must be a vector of `isize` or `usize` with the same number of elements as `T`. + /// + /// Operates as if by `<ptr>::wrapping_offset`. + pub fn simd_arith_offset<T, U>(ptr: T, offset: U) -> T; + + /// Cast a vector of pointers. + /// + /// `T` and `U` must be vectors of pointers with the same number of elements. + pub fn simd_cast_ptr<T, U>(ptr: T) -> U; + + /// Expose a vector of pointers as a vector of addresses. + /// + /// `T` must be a vector of pointers. + /// + /// `U` must be a vector of `usize` with the same length as `T`. + pub fn simd_expose_addr<T, U>(ptr: T) -> U; + + /// Create a vector of pointers from a vector of addresses. + /// + /// `T` must be a vector of `usize`. + /// + /// `U` must be a vector of pointers, with the same length as `T`. + pub fn simd_from_exposed_addr<T, U>(addr: T) -> U; + + /// Swap bytes of each element. + /// + /// `T` must be a vector of integers. + pub fn simd_bswap<T>(x: T) -> T; + + /// Reverse bits of each element. + /// + /// `T` must be a vector of integers. + pub fn simd_bitreverse<T>(x: T) -> T; + + /// Count the leading zeros of each element. + /// + /// `T` must be a vector of integers. + pub fn simd_ctlz<T>(x: T) -> T; + + /// Count the trailing zeros of each element. + /// + /// `T` must be a vector of integers. + pub fn simd_cttz<T>(x: T) -> T; +} diff --git a/library/core/src/net/mod.rs b/library/core/src/net/mod.rs index 31f5f5d3c22..5bae4d2f0c4 100644 --- a/library/core/src/net/mod.rs +++ b/library/core/src/net/mod.rs @@ -9,7 +9,7 @@ //! * [`SocketAddr`] represents socket addresses of either IPv4 or IPv6; [`SocketAddrV4`] //! and [`SocketAddrV6`] are respectively IPv4 and IPv6 socket addresses -#![unstable(feature = "ip_in_core", issue = "108443")] +#![stable(feature = "ip_in_core", since = "CURRENT_RUSTC_VERSION")] #[stable(feature = "rust1", since = "1.0.0")] pub use self::ip_addr::{IpAddr, Ipv4Addr, Ipv6Addr, Ipv6MulticastScope}; diff --git a/library/core/src/option.rs b/library/core/src/option.rs index bfd6aee4a23..ff435349249 100644 --- a/library/core/src/option.rs +++ b/library/core/src/option.rs @@ -1088,7 +1088,7 @@ impl<T> Option<T> { /// let x: Option<&usize> = v.get(5).inspect(|x| println!("got: {x}")); /// ``` #[inline] - #[stable(feature = "result_option_inspect", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "result_option_inspect", since = "1.76.0")] pub fn inspect<F: FnOnce(&T)>(self, f: F) -> Self { if let Some(ref x) = self { f(x); diff --git a/library/core/src/primitive_docs.rs b/library/core/src/primitive_docs.rs index 588f9b865b0..99208fba670 100644 --- a/library/core/src/primitive_docs.rs +++ b/library/core/src/primitive_docs.rs @@ -1575,8 +1575,6 @@ mod prim_ref {} /// Furthermore, ABI compatibility satisfies the following general properties: /// /// - Every type is ABI-compatible with itself. -/// - If `T1` and `T2` are ABI-compatible, then two `repr(C)` types that only differ because one -/// field type was changed from `T1` to `T2` are ABI-compatible. /// - If `T1` and `T2` are ABI-compatible and `T2` and `T3` are ABI-compatible, then so are `T1` and /// `T3` (i.e., ABI-compatibility is transitive). /// - If `T1` and `T2` are ABI-compatible, then so are `T2` and `T1` (i.e., ABI-compatibility is diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs index a444c30c756..12ff64de879 100644 --- a/library/core/src/ptr/const_ptr.rs +++ b/library/core/src/ptr/const_ptr.rs @@ -1772,7 +1772,7 @@ impl<T> *const [T] { #[stable(feature = "rust1", since = "1.0.0")] impl<T: ?Sized> PartialEq for *const T { #[inline] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn eq(&self, other: &*const T) -> bool { *self == *other } @@ -1785,7 +1785,7 @@ impl<T: ?Sized> Eq for *const T {} #[stable(feature = "rust1", since = "1.0.0")] impl<T: ?Sized> Ord for *const T { #[inline] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn cmp(&self, other: &*const T) -> Ordering { if self < other { Less @@ -1805,25 +1805,25 @@ impl<T: ?Sized> PartialOrd for *const T { } #[inline] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn lt(&self, other: &*const T) -> bool { *self < *other } #[inline] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn le(&self, other: &*const T) -> bool { *self <= *other } #[inline] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn gt(&self, other: &*const T) -> bool { *self > *other } #[inline] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn ge(&self, other: &*const T) -> bool { *self >= *other } diff --git a/library/core/src/ptr/mod.rs b/library/core/src/ptr/mod.rs index eed793186b9..a9078854125 100644 --- a/library/core/src/ptr/mod.rs +++ b/library/core/src/ptr/mod.rs @@ -720,8 +720,8 @@ where /// type or mutability, in particular if the code is refactored. #[inline(always)] #[must_use] -#[stable(feature = "ptr_from_ref", since = "CURRENT_RUSTC_VERSION")] -#[rustc_const_stable(feature = "ptr_from_ref", since = "CURRENT_RUSTC_VERSION")] +#[stable(feature = "ptr_from_ref", since = "1.76.0")] +#[rustc_const_stable(feature = "ptr_from_ref", since = "1.76.0")] #[rustc_never_returns_null_ptr] #[rustc_diagnostic_item = "ptr_from_ref"] pub const fn from_ref<T: ?Sized>(r: &T) -> *const T { @@ -734,8 +734,8 @@ pub const fn from_ref<T: ?Sized>(r: &T) -> *const T { /// type or mutability, in particular if the code is refactored. #[inline(always)] #[must_use] -#[stable(feature = "ptr_from_ref", since = "CURRENT_RUSTC_VERSION")] -#[rustc_const_stable(feature = "ptr_from_ref", since = "CURRENT_RUSTC_VERSION")] +#[stable(feature = "ptr_from_ref", since = "1.76.0")] +#[rustc_const_stable(feature = "ptr_from_ref", since = "1.76.0")] #[rustc_allow_const_fn_unstable(const_mut_refs)] #[rustc_never_returns_null_ptr] pub const fn from_mut<T: ?Sized>(r: &mut T) -> *mut T { @@ -1900,7 +1900,7 @@ pub(crate) const unsafe fn align_offset<T: Sized>(p: *const T, a: usize) -> usiz #[inline(always)] #[must_use = "pointer comparison produces a value"] #[rustc_diagnostic_item = "ptr_eq"] -#[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] // it's actually clear here +#[allow(ambiguous_wide_pointer_comparisons)] // it's actually clear here pub fn eq<T: ?Sized>(a: *const T, b: *const T) -> bool { a == b } @@ -1922,7 +1922,7 @@ pub fn eq<T: ?Sized>(a: *const T, b: *const T) -> bool { /// assert!(ptr::addr_eq(whole, first)); /// assert!(!ptr::eq::<dyn std::fmt::Debug>(whole, first)); /// ``` -#[stable(feature = "ptr_addr_eq", since = "CURRENT_RUSTC_VERSION")] +#[stable(feature = "ptr_addr_eq", since = "1.76.0")] #[inline(always)] #[must_use = "pointer comparison produces a value"] pub fn addr_eq<T: ?Sized, U: ?Sized>(p: *const T, q: *const U) -> bool { diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs index 9e7b8ec64ac..4f5fca4367d 100644 --- a/library/core/src/ptr/mut_ptr.rs +++ b/library/core/src/ptr/mut_ptr.rs @@ -2199,7 +2199,7 @@ impl<T> *mut [T] { #[stable(feature = "rust1", since = "1.0.0")] impl<T: ?Sized> PartialEq for *mut T { #[inline(always)] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn eq(&self, other: &*mut T) -> bool { *self == *other } @@ -2211,7 +2211,7 @@ impl<T: ?Sized> Eq for *mut T {} #[stable(feature = "rust1", since = "1.0.0")] impl<T: ?Sized> Ord for *mut T { #[inline] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn cmp(&self, other: &*mut T) -> Ordering { if self < other { Less @@ -2231,25 +2231,25 @@ impl<T: ?Sized> PartialOrd for *mut T { } #[inline(always)] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn lt(&self, other: &*mut T) -> bool { *self < *other } #[inline(always)] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn le(&self, other: &*mut T) -> bool { *self <= *other } #[inline(always)] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn gt(&self, other: &*mut T) -> bool { *self > *other } #[inline(always)] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn ge(&self, other: &*mut T) -> bool { *self >= *other } diff --git a/library/core/src/ptr/non_null.rs b/library/core/src/ptr/non_null.rs index 77961506e13..427a9f3f494 100644 --- a/library/core/src/ptr/non_null.rs +++ b/library/core/src/ptr/non_null.rs @@ -1791,7 +1791,7 @@ impl<T: ?Sized> Eq for NonNull<T> {} #[stable(feature = "nonnull", since = "1.25.0")] impl<T: ?Sized> PartialEq for NonNull<T> { #[inline] - #[cfg_attr(not(bootstrap), allow(ambiguous_wide_pointer_comparisons))] + #[allow(ambiguous_wide_pointer_comparisons)] fn eq(&self, other: &Self) -> bool { self.as_ptr() == other.as_ptr() } diff --git a/library/core/src/result.rs b/library/core/src/result.rs index 90c346e98bc..eff1b9b59b1 100644 --- a/library/core/src/result.rs +++ b/library/core/src/result.rs @@ -842,7 +842,7 @@ impl<T, E> Result<T, E> { /// .expect("failed to parse number"); /// ``` #[inline] - #[stable(feature = "result_option_inspect", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "result_option_inspect", since = "1.76.0")] pub fn inspect<F: FnOnce(&T)>(self, f: F) -> Self { if let Ok(ref t) = self { f(t); @@ -864,7 +864,7 @@ impl<T, E> Result<T, E> { /// } /// ``` #[inline] - #[stable(feature = "result_option_inspect", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "result_option_inspect", since = "1.76.0")] pub fn inspect_err<F: FnOnce(&E)>(self, f: F) -> Self { if let Err(ref e) = self { f(e); diff --git a/library/core/src/tuple.rs b/library/core/src/tuple.rs index 3689312e6ae..e1b77e34f21 100644 --- a/library/core/src/tuple.rs +++ b/library/core/src/tuple.rs @@ -8,146 +8,6 @@ use crate::marker::{StructuralEq, StructuralPartialEq}; // // Also provides implementations for tuples with lesser arity. For example, tuple_impls!(A B C) // will implement everything for (A, B, C), (A, B) and (A,). -#[cfg(bootstrap)] -macro_rules! tuple_impls { - // Stopping criteria (1-ary tuple) - ($T:ident) => { - tuple_impls!(@impl $T); - }; - // Running criteria (n-ary tuple, with n >= 2) - ($T:ident $( $U:ident )+) => { - tuple_impls!($( $U )+); - tuple_impls!(@impl $T $( $U )+); - }; - // "Private" internal implementation - (@impl $( $T:ident )+) => { - maybe_tuple_doc! { - $($T)+ @ - #[stable(feature = "rust1", since = "1.0.0")] - impl<$($T: PartialEq),+> PartialEq for ($($T,)+) - where - last_type!($($T,)+): ?Sized - { - #[inline] - fn eq(&self, other: &($($T,)+)) -> bool { - $( ${ignore(T)} self.${index()} == other.${index()} )&&+ - } - #[inline] - fn ne(&self, other: &($($T,)+)) -> bool { - $( ${ignore(T)} self.${index()} != other.${index()} )||+ - } - } - } - - maybe_tuple_doc! { - $($T)+ @ - #[stable(feature = "rust1", since = "1.0.0")] - impl<$($T: Eq),+> Eq for ($($T,)+) - where - last_type!($($T,)+): ?Sized - {} - } - - maybe_tuple_doc! { - $($T)+ @ - #[unstable(feature = "structural_match", issue = "31434")] - impl<$($T: ConstParamTy),+> ConstParamTy for ($($T,)+) {} - } - - maybe_tuple_doc! { - $($T)+ @ - #[unstable(feature = "structural_match", issue = "31434")] - impl<$($T),+> StructuralPartialEq for ($($T,)+) {} - } - - maybe_tuple_doc! { - $($T)+ @ - #[unstable(feature = "structural_match", issue = "31434")] - impl<$($T),+> StructuralEq for ($($T,)+) {} - } - - maybe_tuple_doc! { - $($T)+ @ - #[stable(feature = "rust1", since = "1.0.0")] - impl<$($T: PartialOrd),+> PartialOrd for ($($T,)+) - where - last_type!($($T,)+): ?Sized - { - #[inline] - fn partial_cmp(&self, other: &($($T,)+)) -> Option<Ordering> { - lexical_partial_cmp!($( ${ignore(T)} self.${index()}, other.${index()} ),+) - } - #[inline] - fn lt(&self, other: &($($T,)+)) -> bool { - lexical_ord!(lt, Less, $( ${ignore(T)} self.${index()}, other.${index()} ),+) - } - #[inline] - fn le(&self, other: &($($T,)+)) -> bool { - lexical_ord!(le, Less, $( ${ignore(T)} self.${index()}, other.${index()} ),+) - } - #[inline] - fn ge(&self, other: &($($T,)+)) -> bool { - lexical_ord!(ge, Greater, $( ${ignore(T)} self.${index()}, other.${index()} ),+) - } - #[inline] - fn gt(&self, other: &($($T,)+)) -> bool { - lexical_ord!(gt, Greater, $( ${ignore(T)} self.${index()}, other.${index()} ),+) - } - } - } - - maybe_tuple_doc! { - $($T)+ @ - #[stable(feature = "rust1", since = "1.0.0")] - impl<$($T: Ord),+> Ord for ($($T,)+) - where - last_type!($($T,)+): ?Sized - { - #[inline] - fn cmp(&self, other: &($($T,)+)) -> Ordering { - lexical_cmp!($( ${ignore(T)} self.${index()}, other.${index()} ),+) - } - } - } - - maybe_tuple_doc! { - $($T)+ @ - #[stable(feature = "rust1", since = "1.0.0")] - impl<$($T: Default),+> Default for ($($T,)+) { - #[inline] - fn default() -> ($($T,)+) { - ($($T::default(),)+) - } - } - } - - #[stable(feature = "array_tuple_conv", since = "1.71.0")] - impl<T> From<[T; ${count(T)}]> for ($(${ignore(T)} T,)+) { - #[inline] - #[allow(non_snake_case)] - fn from(array: [T; ${count(T)}]) -> Self { - let [$($T,)+] = array; - ($($T,)+) - } - } - - #[stable(feature = "array_tuple_conv", since = "1.71.0")] - impl<T> From<($(${ignore(T)} T,)+)> for [T; ${count(T)}] { - #[inline] - #[allow(non_snake_case)] - fn from(tuple: ($(${ignore(T)} T,)+)) -> Self { - let ($($T,)+) = tuple; - [$($T,)+] - } - } - } -} - -// Recursive macro for implementing n-ary tuple functions and operations -// -// Also provides implementations for tuples with lesser arity. For example, tuple_impls!(A B C) -// will implement everything for (A, B, C), (A, B) and (A,). -#[cfg(not(bootstrap))] macro_rules! tuple_impls { // Stopping criteria (1-ary tuple) ($T:ident) => { diff --git a/library/core/tests/async_iter/mod.rs b/library/core/tests/async_iter/mod.rs new file mode 100644 index 00000000000..0c30bd1dfea --- /dev/null +++ b/library/core/tests/async_iter/mod.rs @@ -0,0 +1,17 @@ +use core::async_iter::{self, AsyncIterator, IntoAsyncIterator}; +use core::pin::pin; +use core::task::Poll; + +#[test] +fn into_async_iter() { + let async_iter = async_iter::from_iter(0..3); + let mut async_iter = pin!(async_iter.into_async_iter()); + + let waker = core::task::Waker::noop(); + let mut cx = &mut core::task::Context::from_waker(&waker); + + assert_eq!(async_iter.as_mut().poll_next(&mut cx), Poll::Ready(Some(0))); + assert_eq!(async_iter.as_mut().poll_next(&mut cx), Poll::Ready(Some(1))); + assert_eq!(async_iter.as_mut().poll_next(&mut cx), Poll::Ready(Some(2))); + assert_eq!(async_iter.as_mut().poll_next(&mut cx), Poll::Ready(None)); +} diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs index c531117bed5..5946862d3e4 100644 --- a/library/core/tests/lib.rs +++ b/library/core/tests/lib.rs @@ -4,6 +4,8 @@ #![feature(array_windows)] #![feature(ascii_char)] #![feature(ascii_char_variants)] +#![feature(async_iter_from_iter)] +#![feature(async_iterator)] #![feature(bigint_helper_methods)] #![feature(cell_update)] #![feature(const_align_offset)] @@ -55,6 +57,7 @@ #![feature(maybe_uninit_write_slice)] #![feature(maybe_uninit_uninit_array_transpose)] #![feature(min_specialization)] +#![feature(noop_waker)] #![feature(numfmt)] #![feature(num_midpoint)] #![feature(isqrt)] @@ -68,7 +71,6 @@ #![feature(slice_internals)] #![feature(slice_partition_dedup)] #![feature(ip)] -#![feature(ip_in_core)] #![feature(iter_advance_by)] #![feature(iter_array_chunks)] #![feature(iter_collect_into)] @@ -111,7 +113,6 @@ #![feature(slice_flatten)] #![feature(error_generic_member_access)] #![feature(error_in_core)] -#![cfg_attr(bootstrap, feature(trait_upcasting))] #![feature(utf8_chunks)] #![feature(is_ascii_octdigit)] #![feature(get_many_mut)] @@ -126,6 +127,7 @@ mod any; mod array; mod ascii; mod asserting; +mod async_iter; mod atomic; mod bool; mod cell; diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs index 4310e108303..38050cf684f 100644 --- a/library/std/src/fs.rs +++ b/library/std/src/fs.rs @@ -411,8 +411,6 @@ impl File { /// # Examples /// /// ```no_run - /// #![feature(file_create_new)] - /// /// use std::fs::File; /// use std::io::Write; /// @@ -422,7 +420,7 @@ impl File { /// Ok(()) /// } /// ``` - #[unstable(feature = "file_create_new", issue = "105135")] + #[stable(feature = "file_create_new", since = "CURRENT_RUSTC_VERSION")] pub fn create_new<P: AsRef<Path>>(path: P) -> io::Result<File> { OpenOptions::new().read(true).write(true).create_new(true).open(path.as_ref()) } diff --git a/library/std/src/hash/mod.rs b/library/std/src/hash/mod.rs index bd9bbf29875..e5ef9e33597 100644 --- a/library/std/src/hash/mod.rs +++ b/library/std/src/hash/mod.rs @@ -87,5 +87,5 @@ pub(crate) mod random; #[stable(feature = "rust1", since = "1.0.0")] pub use core::hash::*; -#[stable(feature = "std_hash_exports", since = "CURRENT_RUSTC_VERSION")] +#[stable(feature = "std_hash_exports", since = "1.76.0")] pub use self::random::{DefaultHasher, RandomState}; diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index 76081833e05..6365366297c 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -308,7 +308,6 @@ // // Library features (core): // tidy-alphabetical-start -#![cfg_attr(bootstrap, feature(c_str_literals))] #![feature(char_internals)] #![feature(core_intrinsics)] #![feature(core_io_borrowed_buf)] @@ -326,7 +325,6 @@ #![feature(hasher_prefixfree_extras)] #![feature(hashmap_internals)] #![feature(ip)] -#![feature(ip_in_core)] #![feature(maybe_uninit_slice)] #![feature(maybe_uninit_uninit_array)] #![feature(maybe_uninit_write_slice)] diff --git a/library/std/src/macros.rs b/library/std/src/macros.rs index 34b8b6b97b5..58df83bd79d 100644 --- a/library/std/src/macros.rs +++ b/library/std/src/macros.rs @@ -355,15 +355,15 @@ macro_rules! dbg { // `$val` expression could be a block (`{ .. }`), in which case the `eprintln!` // will be malformed. () => { - $crate::eprintln!("[{}:{}]", $crate::file!(), $crate::line!()) + $crate::eprintln!("[{}:{}:{}]", $crate::file!(), $crate::line!(), $crate::column!()) }; ($val:expr $(,)?) => { // Use of `match` here is intentional because it affects the lifetimes // of temporaries - https://stackoverflow.com/a/48732525/1063961 match $val { tmp => { - $crate::eprintln!("[{}:{}] {} = {:#?}", - $crate::file!(), $crate::line!(), $crate::stringify!($val), &tmp); + $crate::eprintln!("[{}:{}:{}] {} = {:#?}", + $crate::file!(), $crate::line!(), $crate::column!(), $crate::stringify!($val), &tmp); tmp } } diff --git a/library/std/src/sys/windows/fs.rs b/library/std/src/sys/windows/fs.rs index 09dfb0caeec..42484543686 100644 --- a/library/std/src/sys/windows/fs.rs +++ b/library/std/src/sys/windows/fs.rs @@ -309,14 +309,16 @@ impl File { && unsafe { c::GetLastError() } == c::ERROR_ALREADY_EXISTS { unsafe { - // Setting the allocation size to zero also sets the - // EOF position to zero. - let alloc = c::FILE_ALLOCATION_INFO { AllocationSize: 0 }; + // This originally used `FileAllocationInfo` instead of + // `FileEndOfFileInfo` but that wasn't supported by WINE. + // It's arguable which fits the semantics of `OpenOptions` + // better so let's just use the more widely supported method. + let eof = c::FILE_END_OF_FILE_INFO { EndOfFile: 0 }; let result = c::SetFileInformationByHandle( handle.as_raw_handle(), - c::FileAllocationInfo, - ptr::addr_of!(alloc).cast::<c_void>(), - mem::size_of::<c::FILE_ALLOCATION_INFO>() as u32, + c::FileEndOfFileInfo, + ptr::addr_of!(eof).cast::<c_void>(), + mem::size_of::<c::FILE_END_OF_FILE_INFO>() as u32, ); if result == 0 { return Err(io::Error::last_os_error()); diff --git a/src/bootstrap/Cargo.lock b/src/bootstrap/Cargo.lock index f452b944e75..63190fc3180 100644 --- a/src/bootstrap/Cargo.lock +++ b/src/bootstrap/Cargo.lock @@ -55,7 +55,6 @@ dependencies = [ "cmake", "fd-lock", "filetime", - "hex", "home", "ignore", "junction", @@ -314,12 +313,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8" [[package]] -name = "hex" -version = "0.4.3" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70" - -[[package]] name = "home" version = "0.5.4" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -435,9 +428,9 @@ dependencies = [ [[package]] name = "once_cell" -version = "1.12.0" +version = "1.19.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225" +checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92" [[package]] name = "opener" @@ -627,9 +620,9 @@ dependencies = [ [[package]] name = "sysinfo" -version = "0.26.7" +version = "0.30.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c375d5fd899e32847b8566e10598d6e9f1d9b55ec6de3cdf9e7da4bdc51371bc" +checksum = "c68492e7268037de59ae153d7efb79546cf94a18a9548235420d3d8d2436b4b1" dependencies = [ "cfg-if", "core-foundation-sys", @@ -637,7 +630,7 @@ dependencies = [ "ntapi", "once_cell", "rayon", - "winapi", + "windows", ] [[package]] diff --git a/src/bootstrap/Cargo.toml b/src/bootstrap/Cargo.toml index 24951cf20fa..225eccca40f 100644 --- a/src/bootstrap/Cargo.toml +++ b/src/bootstrap/Cargo.toml @@ -39,7 +39,6 @@ clap = { version = "4.4.7", default-features = false, features = ["std", "usage" clap_complete = "4.4.3" cmake = "0.1.38" filetime = "0.2" -hex = "0.4" home = "0.5.4" ignore = "0.4.10" libc = "0.2.150" @@ -60,7 +59,7 @@ walkdir = "2" xz2 = "0.1" # Dependencies needed by the build-metrics feature -sysinfo = { version = "0.26.0", optional = true } +sysinfo = { version = "0.30.0", optional = true } # Solaris doesn't support flock() and thus fd-lock is not option now [target.'cfg(not(target_os = "solaris"))'.dependencies] diff --git a/src/bootstrap/src/core/build_steps/clean.rs b/src/bootstrap/src/core/build_steps/clean.rs index 6372db96afb..4b993945f19 100644 --- a/src/bootstrap/src/core/build_steps/clean.rs +++ b/src/bootstrap/src/core/build_steps/clean.rs @@ -149,8 +149,14 @@ fn clean_default(build: &Build) { rm_rf(&build.out.join("bootstrap-shims-dump")); rm_rf(&build.out.join("rustfmt.stamp")); - for host in &build.hosts { - let entries = match build.out.join(host.triple).read_dir() { + let mut hosts: Vec<_> = build.hosts.iter().map(|t| build.out.join(t.triple)).collect(); + // After cross-compilation, artifacts of the host architecture (which may differ from build.host) + // might not get removed. + // Adding its path (linked one for easier accessibility) will solve this problem. + hosts.push(build.out.join("host")); + + for host in hosts { + let entries = match host.read_dir() { Ok(iter) => iter, Err(_) => continue, }; diff --git a/src/bootstrap/src/core/build_steps/doc.rs b/src/bootstrap/src/core/build_steps/doc.rs index cf3f5bc983e..57e63927c95 100644 --- a/src/bootstrap/src/core/build_steps/doc.rs +++ b/src/bootstrap/src/core/build_steps/doc.rs @@ -1001,6 +1001,7 @@ tool_doc!( "cargo-test-macro", "cargo-test-support", "cargo-util", + "cargo-util-schemas", "crates-io", "mdman", "rustfix", diff --git a/src/bootstrap/src/core/build_steps/setup.rs b/src/bootstrap/src/core/build_steps/setup.rs index fe84b95f90c..9c897ae1bb7 100644 --- a/src/bootstrap/src/core/build_steps/setup.rs +++ b/src/bootstrap/src/core/build_steps/setup.rs @@ -1,6 +1,7 @@ use crate::core::builder::{Builder, RunConfig, ShouldRun, Step}; use crate::t; use crate::utils::change_tracker::CONFIG_CHANGE_HISTORY; +use crate::utils::helpers::hex_encode; use crate::Config; use sha2::Digest; use std::env::consts::EXE_SUFFIX; @@ -566,7 +567,7 @@ fn create_vscode_settings_maybe(config: &Config) -> io::Result<bool> { if let Ok(current) = fs::read_to_string(&vscode_settings) { let mut hasher = sha2::Sha256::new(); hasher.update(¤t); - let hash = hex::encode(hasher.finalize().as_slice()); + let hash = hex_encode(hasher.finalize().as_slice()); if hash == *current_hash { return Ok(true); } else if historical_hashes.contains(&hash.as_str()) { diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index 9942f00a056..8e3941dbeda 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -671,11 +671,14 @@ impl Step for RustAnalyzerProcMacroSrv { // Allow building `rust-analyzer-proc-macro-srv` both as part of the `rust-analyzer` and as a stand-alone tool. run.path("src/tools/rust-analyzer") .path("src/tools/rust-analyzer/crates/proc-macro-srv-cli") - .default_condition(builder.config.tools.as_ref().map_or(true, |tools| { - tools - .iter() - .any(|tool| tool == "rust-analyzer" || tool == "rust-analyzer-proc-macro-srv") - })) + .default_condition( + builder.config.extended + && builder.config.tools.as_ref().map_or(true, |tools| { + tools.iter().any(|tool| { + tool == "rust-analyzer" || tool == "rust-analyzer-proc-macro-srv" + }) + }), + ) } fn make_run(run: RunConfig<'_>) { diff --git a/src/bootstrap/src/core/builder.rs b/src/bootstrap/src/core/builder.rs index e1809644350..753b41abaf4 100644 --- a/src/bootstrap/src/core/builder.rs +++ b/src/bootstrap/src/core/builder.rs @@ -289,6 +289,18 @@ impl PathSet { } } +const PATH_REMAP: &[(&str, &str)] = &[("rust-analyzer-proc-macro-srv", "proc-macro-srv-cli")]; + +fn remap_paths(paths: &mut Vec<&Path>) { + for path in paths.iter_mut() { + for &(search, replace) in PATH_REMAP { + if path.to_str() == Some(search) { + *path = Path::new(replace) + } + } + } +} + impl StepDescription { fn from<S: Step>(kind: Kind) -> StepDescription { StepDescription { @@ -361,6 +373,8 @@ impl StepDescription { let mut paths: Vec<_> = paths.into_iter().map(|p| p.strip_prefix(".").unwrap_or(p)).collect(); + remap_paths(&mut paths); + // Handle all test suite paths. // (This is separate from the loop below to avoid having to handle multiple paths in `is_suite_path` somehow.) paths.retain(|path| { @@ -1207,11 +1221,6 @@ impl<'a> Builder<'a> { cmd.arg("-Dwarnings"); } cmd.arg("-Znormalize-docs"); - - // Remove make-related flags that can cause jobserver problems. - cmd.env_remove("MAKEFLAGS"); - cmd.env_remove("MFLAGS"); - cmd.args(linker_args(self, compiler.host, LldThreads::Yes)); cmd } diff --git a/src/bootstrap/src/core/download.rs b/src/bootstrap/src/core/download.rs index 1f2ee6a6b73..ec404ab8580 100644 --- a/src/bootstrap/src/core/download.rs +++ b/src/bootstrap/src/core/download.rs @@ -11,9 +11,9 @@ use std::{ use build_helper::ci::CiEnv; use xz2::bufread::XzDecoder; -use crate::core::build_steps::llvm::detect_llvm_sha; use crate::core::config::RustfmtMetadata; use crate::utils::helpers::{check_run, exe, program_out_of_date}; +use crate::{core::build_steps::llvm::detect_llvm_sha, utils::helpers::hex_encode}; use crate::{t, Config}; static SHOULD_FIX_BINS_AND_DYLIBS: OnceLock<bool> = OnceLock::new(); @@ -345,7 +345,7 @@ impl Config { reader.consume(l); } - let checksum = hex::encode(hasher.finalize().as_slice()); + let checksum = hex_encode(hasher.finalize().as_slice()); let verified = checksum == expected; if !verified { diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs index 9efb4990cab..871318de595 100644 --- a/src/bootstrap/src/lib.rs +++ b/src/bootstrap/src/lib.rs @@ -34,6 +34,7 @@ use filetime::FileTime; use sha2::digest::Digest; use termcolor::{ColorChoice, StandardStream, WriteColor}; use utils::channel::GitInfo; +use utils::helpers::hex_encode; use crate::core::builder; use crate::core::builder::Kind; @@ -1871,7 +1872,7 @@ pub fn generate_smart_stamp_hash(dir: &Path, additional_input: &str) -> String { hasher.update(status); hasher.update(additional_input); - hex::encode(hasher.finalize().as_slice()) + hex_encode(hasher.finalize().as_slice()) } /// Ensures that the behavior dump directory is properly initialized. diff --git a/src/bootstrap/src/tests/builder.rs b/src/bootstrap/src/tests/builder.rs index 744015e8e82..700ebcf5e37 100644 --- a/src/bootstrap/src/tests/builder.rs +++ b/src/bootstrap/src/tests/builder.rs @@ -156,22 +156,6 @@ fn alias_and_path_for_library() { assert_eq!(first(cache.all::<doc::Std>()), &[doc_std!(A => A, stage = 0)]); } -#[test] -fn test_beta_rev_parsing() { - use crate::utils::helpers::extract_beta_rev; - - // single digit revision - assert_eq!(extract_beta_rev("1.99.9-beta.7 (xxxxxx)"), Some("7".to_string())); - // multiple digits - assert_eq!(extract_beta_rev("1.99.9-beta.777 (xxxxxx)"), Some("777".to_string())); - // nightly channel (no beta revision) - assert_eq!(extract_beta_rev("1.99.9-nightly (xxxxxx)"), None); - // stable channel (no beta revision) - assert_eq!(extract_beta_rev("1.99.9 (xxxxxxx)"), None); - // invalid string - assert_eq!(extract_beta_rev("invalid"), None); -} - mod defaults { use super::{configure, first, run_build}; use crate::core::builder::*; diff --git a/src/bootstrap/src/tests/helpers.rs b/src/bootstrap/src/tests/helpers.rs new file mode 100644 index 00000000000..afe18aebafa --- /dev/null +++ b/src/bootstrap/src/tests/helpers.rs @@ -0,0 +1,59 @@ +use crate::utils::helpers::{extract_beta_rev, hex_encode, make}; +use std::path::PathBuf; + +#[test] +fn test_make() { + for (host, make_path) in vec![ + ("dragonfly", PathBuf::from("gmake")), + ("netbsd", PathBuf::from("gmake")), + ("freebsd", PathBuf::from("gmake")), + ("openbsd", PathBuf::from("gmake")), + ("linux", PathBuf::from("make")), + // for checking the default + ("_", PathBuf::from("make")), + ] { + assert_eq!(make(host), make_path); + } +} + +#[cfg(unix)] +#[test] +fn test_absolute_unix() { + use crate::utils::helpers::absolute_unix; + + // Test an absolute path + let path = PathBuf::from("/home/user/file.txt"); + assert_eq!(absolute_unix(&path).unwrap(), PathBuf::from("/home/user/file.txt")); + + // Test an absolute path with double leading slashes + let path = PathBuf::from("//root//file.txt"); + assert_eq!(absolute_unix(&path).unwrap(), PathBuf::from("//root/file.txt")); + + // Test a relative path + let path = PathBuf::from("relative/path"); + assert_eq!( + absolute_unix(&path).unwrap(), + std::env::current_dir().unwrap().join("relative/path") + ); +} + +#[test] +fn test_beta_rev_parsing() { + // single digit revision + assert_eq!(extract_beta_rev("1.99.9-beta.7 (xxxxxx)"), Some("7".to_string())); + // multiple digits + assert_eq!(extract_beta_rev("1.99.9-beta.777 (xxxxxx)"), Some("777".to_string())); + // nightly channel (no beta revision) + assert_eq!(extract_beta_rev("1.99.9-nightly (xxxxxx)"), None); + // stable channel (no beta revision) + assert_eq!(extract_beta_rev("1.99.9 (xxxxxxx)"), None); + // invalid string + assert_eq!(extract_beta_rev("invalid"), None); +} + +#[test] +fn test_string_to_hex_encode() { + let input_string = "Hello, World!"; + let hex_string = hex_encode(input_string); + assert_eq!(hex_string, "48656c6c6f2c20576f726c6421"); +} diff --git a/src/bootstrap/src/tests/setup.rs b/src/bootstrap/src/tests/setup.rs index 0fe6e4a4644..3e4d66c7454 100644 --- a/src/bootstrap/src/tests/setup.rs +++ b/src/bootstrap/src/tests/setup.rs @@ -1,11 +1,12 @@ use super::{RUST_ANALYZER_SETTINGS, SETTINGS_HASHES}; +use crate::utils::helpers::hex_encode; use sha2::Digest; #[test] fn check_matching_settings_hash() { let mut hasher = sha2::Sha256::new(); hasher.update(&RUST_ANALYZER_SETTINGS); - let hash = hex::encode(hasher.finalize().as_slice()); + let hash = hex_encode(hasher.finalize().as_slice()); assert_eq!( &hash, SETTINGS_HASHES.last().unwrap(), diff --git a/src/bootstrap/src/utils/change_tracker.rs b/src/bootstrap/src/utils/change_tracker.rs index 8b53a61542e..1eadc036b5e 100644 --- a/src/bootstrap/src/utils/change_tracker.rs +++ b/src/bootstrap/src/utils/change_tracker.rs @@ -96,4 +96,9 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[ severity: ChangeSeverity::Info, summary: "Removed rust.run_dsymutil and dist.gpg_password_file config options, as they were unused.", }, + ChangeInfo { + change_id: 119124, + severity: ChangeSeverity::Warning, + summary: "rust-analyzer-proc-macro-srv is no longer enabled by default. To build it, you must either enable it in the configuration or explicitly invoke it with x.py.", + }, ]; diff --git a/src/bootstrap/src/utils/helpers.rs b/src/bootstrap/src/utils/helpers.rs index 031d56beb67..0c4297db6cc 100644 --- a/src/bootstrap/src/utils/helpers.rs +++ b/src/bootstrap/src/utils/helpers.rs @@ -20,6 +20,10 @@ use crate::LldMode; pub use crate::utils::dylib::{dylib_path, dylib_path_var}; +#[cfg(test)] +#[path = "../tests/helpers.rs"] +mod tests; + /// A helper macro to `unwrap` a result except also print out details like: /// /// * The file/line of the panic @@ -540,3 +544,11 @@ pub fn add_rustdoc_cargo_linker_args( cmd.env("RUSTDOCFLAGS", flags); } } + +/// Converts `T` into a hexadecimal `String`. +pub fn hex_encode<T>(input: T) -> String +where + T: AsRef<[u8]>, +{ + input.as_ref().iter().map(|x| format!("{:02x}", x)).collect() +} diff --git a/src/bootstrap/src/utils/metrics.rs b/src/bootstrap/src/utils/metrics.rs index 174f374224c..697dd2f3505 100644 --- a/src/bootstrap/src/utils/metrics.rs +++ b/src/bootstrap/src/utils/metrics.rs @@ -15,7 +15,7 @@ use std::cell::RefCell; use std::fs::File; use std::io::BufWriter; use std::time::{Duration, Instant, SystemTime}; -use sysinfo::{CpuExt, System, SystemExt}; +use sysinfo::System; // Update this number whenever a breaking change is made to the build metrics. // diff --git a/src/ci/docker/host-x86_64/dist-various-1/Dockerfile b/src/ci/docker/host-x86_64/dist-various-1/Dockerfile index adf3c67479b..ea185cd582c 100644 --- a/src/ci/docker/host-x86_64/dist-various-1/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-various-1/Dockerfile @@ -49,6 +49,12 @@ RUN ./install-x86_64-redox.sh COPY host-x86_64/dist-various-1/install-aarch64-none-elf.sh /build RUN ./install-aarch64-none-elf.sh +COPY host-x86_64/dist-various-1/install-riscv64-none-elf.sh /build +RUN ./install-riscv64-none-elf.sh + +COPY host-x86_64/dist-various-1/install-riscv32-none-elf.sh /build +RUN ./install-riscv32-none-elf.sh + # Suppress some warnings in the openwrt toolchains we downloaded ENV STAGING_DIR=/tmp @@ -105,9 +111,6 @@ ENV TARGETS=$TARGETS,armv7r-none-eabihf ENV TARGETS=$TARGETS,thumbv7neon-unknown-linux-gnueabihf ENV TARGETS=$TARGETS,armv7a-none-eabi -# riscv targets currently do not need a C compiler, as compiler_builtins -# doesn't currently have it enabled, and the riscv gcc compiler is not -# installed. ENV CFLAGS_armv5te_unknown_linux_musleabi="-march=armv5te -marm -mfloat-abi=soft" \ CFLAGS_arm_unknown_linux_musleabi="-march=armv6 -marm" \ CFLAGS_arm_unknown_linux_musleabihf="-march=armv6 -marm -mfpu=vfp" \ @@ -125,11 +128,16 @@ ENV CFLAGS_armv5te_unknown_linux_musleabi="-march=armv5te -marm -mfloat-abi=soft CFLAGS_aarch64_unknown_none_softfloat=-mstrict-align -march=armv8-a+nofp+nosimd \ CC_aarch64_unknown_none=aarch64-none-elf-gcc \ CFLAGS_aarch64_unknown_none=-mstrict-align -march=armv8-a+fp+simd \ - CC_riscv32i_unknown_none_elf=false \ - CC_riscv32imc_unknown_none_elf=false \ - CC_riscv32imac_unknown_none_elf=false \ - CC_riscv64imac_unknown_none_elf=false \ - CC_riscv64gc_unknown_none_elf=false + CC_riscv32i_unknown_none_elf=riscv32-unknown-elf-gcc \ + CFLAGS_riscv32i_unknown_none_elf=-march=rv32i -mabi=ilp32 \ + CC_riscv32imc_unknown_none_elf=riscv32-unknown-elf-gcc \ + CFLAGS_riscv32imc_unknown_none_elf=-march=rv32imc -mabi=ilp32 \ + CC_riscv32imac_unknown_none_elf=riscv32-unknown-elf-gcc \ + CFLAGS_riscv32imac_unknown_none_elf=-march=rv32imac -mabi=ilp32 \ + CC_riscv64imac_unknown_none_elf=riscv64-unknown-elf-gcc \ + CFLAGS_riscv64imac_unknown_none_elf=-march=rv64imac -mabi=lp64 \ + CC_riscv64gc_unknown_none_elf=riscv64-unknown-elf-gcc \ + CFLAGS_riscv64gc_unknown_none_elf=-march=rv64gc -mabi=lp64 ENV RUST_CONFIGURE_ARGS \ --musl-root-armv5te=/musl-armv5te \ diff --git a/src/ci/docker/host-x86_64/dist-various-1/install-riscv32-none-elf.sh b/src/ci/docker/host-x86_64/dist-various-1/install-riscv32-none-elf.sh new file mode 100755 index 00000000000..4d83ea479dd --- /dev/null +++ b/src/ci/docker/host-x86_64/dist-various-1/install-riscv32-none-elf.sh @@ -0,0 +1,7 @@ +#!/usr/bin/env bash + +set -ex + +# Originally from https://github.com/riscv-collab/riscv-gnu-toolchain/releases/download/2023.10.18/riscv32-elf-ubuntu-22.04-gcc-nightly-2023.10.18-nightly.tar.gz +curl -L https://ci-mirrors.rust-lang.org/rustc/riscv32-elf-ubuntu-22.04-gcc-nightly-2023.10.18-nightly.tar.gz \ +| tar --extract --gz --strip 1 --directory /usr/local diff --git a/src/ci/docker/host-x86_64/dist-various-1/install-riscv64-none-elf.sh b/src/ci/docker/host-x86_64/dist-various-1/install-riscv64-none-elf.sh new file mode 100755 index 00000000000..ddaf961bbf3 --- /dev/null +++ b/src/ci/docker/host-x86_64/dist-various-1/install-riscv64-none-elf.sh @@ -0,0 +1,7 @@ +#!/usr/bin/env bash + +set -ex + +# Originally from https://github.com/riscv-collab/riscv-gnu-toolchain/releases/download/2023.10.18/riscv64-elf-ubuntu-22.04-gcc-nightly-2023.10.18-nightly.tar.gz +curl -L https://ci-mirrors.rust-lang.org/rustc/riscv64-elf-ubuntu-22.04-gcc-nightly-2023.10.18-nightly.tar.gz \ +| tar --extract --gz --strip 1 --directory /usr/local diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version b/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version index 50b6386a009..a2b63962ba1 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version +++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version @@ -1 +1 @@ -0.16.10 \ No newline at end of file +0.16.11 \ No newline at end of file diff --git a/src/ci/docker/run.sh b/src/ci/docker/run.sh index 636692a0954..55eed95492d 100755 --- a/src/ci/docker/run.sh +++ b/src/ci/docker/run.sh @@ -36,6 +36,11 @@ root_dir="`dirname $src_dir`" objdir=$root_dir/obj dist=$objdir/build/dist + +if [ -d "$root_dir/.git" ]; then + IS_GIT_SOURCE=1 +fi + source "$ci_dir/shared.sh" CACHE_DOMAIN="${CACHE_DOMAIN:-ci-caches.rust-lang.org}" @@ -194,6 +199,14 @@ else args="$args --env SCCACHE_DIR=/sccache --volume $HOME/.cache/sccache:/sccache" fi +# By default, container volumes are bound as read-only; therefore doing experimental work +# or debugging within the container environment (such as fetching submodules and +# building them) is not possible. Setting READ_ONLY_SRC to 0 enables this capability by +# binding the volumes in read-write mode. +if [ "$READ_ONLY_SRC" != "0" ]; then + SRC_MOUNT_OPTION=":ro" +fi + # Run containers as privileged as it should give them access to some more # syscalls such as ptrace and whatnot. In the upgrade to LLVM 5.0 it was # discovered that the leak sanitizer apparently needs these syscalls nowadays so @@ -228,7 +241,7 @@ if [ -f /.dockerenv ]; then docker cp . checkout:/checkout args="$args --volumes-from checkout" else - args="$args --volume $root_dir:/checkout:ro" + args="$args --volume $root_dir:/checkout$SRC_MOUNT_OPTION" args="$args --volume $objdir:/checkout/obj" args="$args --volume $HOME/.cargo:/cargo" args="$args --volume $HOME/rustsrc:$HOME/rustsrc" @@ -249,9 +262,13 @@ if [ "$dev" = "1" ] then # Interactive + TTY args="$args -it" - command="/bin/bash" + if [ $IS_GIT_SOURCE -eq 1 ]; then + command=(/bin/bash -c 'git config --global --add safe.directory /checkout;bash') + else + command=(/bin/bash) + fi else - command="/checkout/src/ci/run.sh" + command=(/checkout/src/ci/run.sh) fi if [ "$CI" != "" ]; then @@ -301,7 +318,7 @@ docker \ --init \ --rm \ rust-ci \ - $command + "${command[@]}" cat $objdir/${SUMMARY_FILE} >> "${GITHUB_STEP_SUMMARY}" diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml index 800d8920951..3af370bf006 100644 --- a/src/ci/github-actions/ci.yml +++ b/src/ci/github-actions/ci.yml @@ -471,6 +471,11 @@ jobs: <<: *job-linux-4c - name: x86_64-gnu-integration + env: + # Only run this job on the nightly channel. Fuchsia requires + # nightly features to compile, and this job would fail if + # executed on beta and stable. + CI_ONLY_WHEN_CHANNEL: nightly <<: *job-linux-16c - name: x86_64-gnu-debug diff --git a/src/doc/edition-guide b/src/doc/edition-guide -Subproject 34fca48ed284525b2f124bf93c51af36d668549 +Subproject bbffb074e16bef89772818b400b6c76a65eac12 diff --git a/src/doc/embedded-book b/src/doc/embedded-book -Subproject 22bca3d0f6e9b9b556689b54ce96f25b46ecd1b +Subproject 3f9df2b9885c6741365da2e12ed6662cd0e827d diff --git a/src/doc/nomicon b/src/doc/nomicon -Subproject 83d015105e6d490fc30d6c95da1e56152a50e22 +Subproject f6bd083c4ccfc4ce6699b8b4154e3c45c5a27a8 diff --git a/src/doc/reference b/src/doc/reference -Subproject 692d216f5a1151e8852ddb308ba64040e634c87 +Subproject f9f5b5babd95515e7028c32d6ca4d9790f64c14 diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example -Subproject da0a06aada31a324ae84a9eaee344f6a944b968 +Subproject 4c2b24ff9d9cf19f2fcff799a3a49b9a2c50ae8 diff --git a/src/doc/rustc-dev-guide b/src/doc/rustc-dev-guide -Subproject 904bb5aa7b21adad58ffae610e2830c7b0f813b +Subproject 0610665a8687b1b0aa037917a1598b9f2a21e3e diff --git a/src/doc/rustc/src/SUMMARY.md b/src/doc/rustc/src/SUMMARY.md index f46daca1f30..1c8e1d1e316 100644 --- a/src/doc/rustc/src/SUMMARY.md +++ b/src/doc/rustc/src/SUMMARY.md @@ -22,8 +22,10 @@ - [\*-apple-watchos\*](platform-support/apple-watchos.md) - [aarch64-nintendo-switch-freestanding](platform-support/aarch64-nintendo-switch-freestanding.md) - [armeb-unknown-linux-gnueabi](platform-support/armeb-unknown-linux-gnueabi.md) + - [arm-none-eabi](platform-support/arm-none-eabi.md) - [armv4t-none-eabi](platform-support/armv4t-none-eabi.md) - [armv5te-none-eabi](platform-support/armv5te-none-eabi.md) + - [armv7r-none-eabi](platform-support/armv7r-none-eabi.md) - [armv6k-nintendo-3ds](platform-support/armv6k-nintendo-3ds.md) - [armv7-sony-vita-newlibeabihf](platform-support/armv7-sony-vita-newlibeabihf.md) - [armv7-unknown-linux-uclibceabi](platform-support/armv7-unknown-linux-uclibceabi.md) @@ -36,6 +38,7 @@ - [\*-unknown-fuchsia](platform-support/fuchsia.md) - [\*-kmc-solid_\*](platform-support/kmc-solid.md) - [csky-unknown-linux-gnuabiv2\*](platform-support/csky-unknown-linux-gnuabiv2.md) + - [hexagon-unknown-none-elf](platform-support/hexagon-unknown-none-elf.md) - [loongarch\*-unknown-linux-\*](platform-support/loongarch-linux.md) - [loongarch\*-unknown-none\*](platform-support/loongarch-none.md) - [m68k-unknown-linux-gnu](platform-support/m68k-unknown-linux-gnu.md) diff --git a/src/doc/rustc/src/codegen-options/index.md b/src/doc/rustc/src/codegen-options/index.md index cfbe1e09cde..4a4f1ae98e4 100644 --- a/src/doc/rustc/src/codegen-options/index.md +++ b/src/doc/rustc/src/codegen-options/index.md @@ -221,7 +221,7 @@ metrics. ## link-self-contained On `windows-gnu`, `linux-musl`, and `wasi` targets, this flag controls whether the -linker will use libraries and objects shipped with Rust instead or those in the system. +linker will use libraries and objects shipped with Rust instead of those in the system. It takes one of the following values: * no value: rustc will use heuristic to disable self-contained mode if system has necessary tools. @@ -249,9 +249,6 @@ flavor. Valid options are: * `gcc`: use the `cc` executable, which is typically gcc or clang on many systems. * `ld`: use the `ld` executable. * `msvc`: use the `link.exe` executable from Microsoft Visual Studio MSVC. -* `ptx`: use [`rust-ptx-linker`](https://github.com/denzp/rust-ptx-linker) - for Nvidia NVPTX GPGPU support. -* `bpf`: use [`bpf-linker`](https://github.com/alessandrod/bpf-linker) for eBPF support. * `wasm-ld`: use the [`wasm-ld`](https://lld.llvm.org/WebAssembly.html) executable, a port of LLVM `lld` for WebAssembly. * `ld64.lld`: use the LLVM `lld` executable with the [`-flavor darwin` diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index 5535e69c86a..09070168b67 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -137,17 +137,17 @@ target | std | notes [`arm-linux-androideabi`](platform-support/android.md) | ✓ | ARMv6 Android `arm-unknown-linux-musleabi` | ✓ | ARMv6 Linux with MUSL `arm-unknown-linux-musleabihf` | ✓ | ARMv6 Linux with MUSL, hardfloat -`armebv7r-none-eabi` | * | Bare ARMv7-R, Big Endian -`armebv7r-none-eabihf` | * | Bare ARMv7-R, Big Endian, hardfloat +[`armebv7r-none-eabi`](platform-support/armv7r-none-eabi.md) | * | Bare ARMv7-R, Big Endian +[`armebv7r-none-eabihf`](platform-support/armv7r-none-eabi.md) | * | Bare ARMv7-R, Big Endian, hardfloat `armv5te-unknown-linux-gnueabi` | ✓ | ARMv5TE Linux (kernel 4.4, glibc 2.23) `armv5te-unknown-linux-musleabi` | ✓ | ARMv5TE Linux with MUSL [`armv7-linux-androideabi`](platform-support/android.md) | ✓ | ARMv7-A Android `armv7-unknown-linux-gnueabi` | ✓ | ARMv7-A Linux (kernel 4.15, glibc 2.27) `armv7-unknown-linux-musleabi` | ✓ | ARMv7-A Linux with MUSL `armv7-unknown-linux-musleabihf` | ✓ | ARMv7-A Linux with MUSL, hardfloat -`armv7a-none-eabi` | * | Bare ARMv7-A -`armv7r-none-eabi` | * | Bare ARMv7-R -`armv7r-none-eabihf` | * | Bare ARMv7-R, hardfloat +[`armv7a-none-eabi`](platform-support/arm-none-eabi.md) | * | Bare ARMv7-A +[`armv7r-none-eabi`](platform-support/armv7r-none-eabi.md) | * | Bare ARMv7-R +[`armv7r-none-eabihf`](platform-support/armv7r-none-eabi.md) | * | Bare ARMv7-R, hardfloat `i586-pc-windows-msvc` | * | 32-bit Windows w/o SSE [^x86_32-floats-x87] `i586-unknown-linux-gnu` | ✓ | 32-bit Linux w/o SSE (kernel 3.2, glibc 2.17) [^x86_32-floats-x87] `i586-unknown-linux-musl` | ✓ | 32-bit Linux w/o SSE, MUSL [^x86_32-floats-x87] @@ -166,15 +166,15 @@ target | std | notes `riscv64imac-unknown-none-elf` | * | Bare RISC-V (RV64IMAC ISA) `sparc64-unknown-linux-gnu` | ✓ | SPARC Linux (kernel 4.4, glibc 2.23) `sparcv9-sun-solaris` | ✓ | SPARC Solaris 11, illumos -`thumbv6m-none-eabi` | * | Bare ARMv6-M -`thumbv7em-none-eabi` | * | Bare ARMv7E-M -`thumbv7em-none-eabihf` | * | Bare ARMV7E-M, hardfloat -`thumbv7m-none-eabi` | * | Bare ARMv7-M +[`thumbv6m-none-eabi`](platform-support/arm-none-eabi.md) | * | Bare ARMv6-M +[`thumbv7em-none-eabi`](platform-support/arm-none-eabi.md) | * | Bare ARMv7E-M +[`thumbv7em-none-eabihf`](platform-support/arm-none-eabi.md) | * | Bare ARMV7E-M, hardfloat +[`thumbv7m-none-eabi`](platform-support/arm-none-eabi.md) | * | Bare ARMv7-M [`thumbv7neon-linux-androideabi`](platform-support/android.md) | ✓ | Thumb2-mode ARMv7-A Android with NEON `thumbv7neon-unknown-linux-gnueabihf` | ✓ | Thumb2-mode ARMv7-A Linux with NEON (kernel 4.4, glibc 2.23) -`thumbv8m.base-none-eabi` | * | Bare ARMv8-M Baseline -`thumbv8m.main-none-eabi` | * | Bare ARMv8-M Mainline -`thumbv8m.main-none-eabihf` | * | Bare ARMv8-M Mainline, hardfloat +[`thumbv8m.base-none-eabi`](platform-support/arm-none-eabi.md) | * | Bare ARMv8-M Baseline +[`thumbv8m.main-none-eabi`](platform-support/arm-none-eabi.md) | * | Bare ARMv8-M Mainline +[`thumbv8m.main-none-eabihf`](platform-support/arm-none-eabi.md) | * | Bare ARMv8-M Mainline, hardfloat `wasm32-unknown-emscripten` | ✓ | WebAssembly via Emscripten `wasm32-unknown-unknown` | ✓ | WebAssembly `wasm32-wasi` | ✓ | WebAssembly with WASI @@ -220,6 +220,7 @@ target | std | host | notes `aarch64-apple-ios-macabi` | ? | | Apple Catalyst on ARM64 [`aarch64-apple-tvos`](platform-support/apple-tvos.md) | ? | | ARM64 tvOS [`aarch64-apple-tvos-sim`](platform-support/apple-tvos.md) | ? | | ARM64 tvOS Simulator +[`aarch64-apple-watchos`](platform-support/apple-watchos.md) | ✓ | | ARM64 Apple WatchOS [`aarch64-apple-watchos-sim`](platform-support/apple-watchos.md) | ✓ | | ARM64 Apple WatchOS Simulator [`aarch64-kmc-solid_asp3`](platform-support/kmc-solid.md) | ✓ | | ARM64 SOLID with TOPPERS/ASP3 [`aarch64-nintendo-switch-freestanding`](platform-support/aarch64-nintendo-switch-freestanding.md) | * | | ARM64 Nintendo Switch, Horizon @@ -229,6 +230,7 @@ target | std | host | notes [`aarch64-unknown-nto-qnx710`](platform-support/nto-qnx.md) | ✓ | | ARM64 QNX Neutrino 7.1 RTOS | `aarch64-unknown-freebsd` | ✓ | ✓ | ARM64 FreeBSD [`aarch64-unknown-hermit`](platform-support/hermit.md) | ✓ | | ARM64 Hermit +`aarch64-unknown-illumos` | ✓ | ✓ | ARM64 illumos `aarch64-unknown-linux-gnu_ilp32` | ✓ | ✓ | ARM64 Linux (ILP32 ABI) [`aarch64-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | ARM64 NetBSD [`aarch64-unknown-openbsd`](platform-support/openbsd.md) | ✓ | ✓ | ARM64 OpenBSD @@ -238,11 +240,11 @@ target | std | host | notes `aarch64_be-unknown-linux-gnu_ilp32` | ✓ | ✓ | ARM64 Linux (big-endian, ILP32 ABI) `aarch64_be-unknown-linux-gnu` | ✓ | ✓ | ARM64 Linux (big-endian) [`aarch64_be-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | ARM64 NetBSD (big-endian) -[`arm64_32-apple-watchos`](platform-support/apple-watchos.md) | ✓ | | ARM Apple WatchOS 64-bit with 32-bit pointers +[`arm64_32-apple-watchos`](platform-support/apple-watchos.md) | ✓ | | ARM Apple WatchOS 64-bit with 32-bit pointers [`armeb-unknown-linux-gnueabi`](platform-support/armeb-unknown-linux-gnueabi.md) | ✓ | ? | ARM BE8 the default ARM big-endian architecture since [ARMv6](https://developer.arm.com/documentation/101754/0616/armlink-Reference/armlink-Command-line-Options/--be8?lang=en). -`armv4t-none-eabi` | * | | Bare ARMv4T +[`armv4t-none-eabi`](platform-support/armv4t-none-eabi.md) | * | | Bare ARMv4T `armv4t-unknown-linux-gnueabi` | ? | | ARMv4T Linux -[`armv5te-none-eabi`](platform-support/armv5te-none-eabi.md) | * | | Bare ARMv5TE +[`armv5te-none-eabi`](platform-support/armv5te-none-eabi.md) | * | | Bare ARMv5TE `armv5te-unknown-linux-uclibceabi` | ? | | ARMv5TE Linux with uClibc `armv6-unknown-freebsd` | ✓ | ✓ | ARMv6 FreeBSD [`armv6-unknown-netbsd-eabihf`](platform-support/netbsd.md) | ✓ | ✓ | ARMv6 NetBSD w/hard-float @@ -256,14 +258,15 @@ target | std | host | notes `armv7-wrs-vxworks-eabihf` | ? | | ARMv7-A for VxWorks [`armv7a-kmc-solid_asp3-eabi`](platform-support/kmc-solid.md) | ✓ | | ARM SOLID with TOPPERS/ASP3 [`armv7a-kmc-solid_asp3-eabihf`](platform-support/kmc-solid.md) | ✓ | | ARM SOLID with TOPPERS/ASP3, hardfloat -`armv7a-none-eabihf` | * | | Bare ARMv7-A, hardfloat -[`armv7k-apple-watchos`](platform-support/apple-watchos.md) | ✓ | | ARMv7-A Apple WatchOS +[`armv7a-none-eabihf`](platform-support/arm-none-eabi.md) | * | | Bare ARMv7-A, hardfloat +[`armv7k-apple-watchos`](platform-support/apple-watchos.md) | ✓ | | ARMv7-A Apple WatchOS `armv7s-apple-ios` | ✓ | | ARMv7-A Apple-A6 Apple iOS `avr-unknown-gnu-atmega328` | * | | AVR. Requires `-Z build-std=core` `bpfeb-unknown-none` | * | | BPF (big endian) `bpfel-unknown-none` | * | | BPF (little endian) `csky-unknown-linux-gnuabiv2` | ✓ | | C-SKY abiv2 Linux (little endian) `csky-unknown-linux-gnuabiv2hf` | ✓ | | C-SKY abiv2 Linux, hardfloat (little endian) +[`hexagon-unknown-none-elf`](platform-support/hexagon-unknown-none-elf.md)| * | Bare Hexagon (v60+, HVX) `hexagon-unknown-linux-musl` | ? | | `i386-apple-ios` | ✓ | | 32-bit x86 iOS [^x86_32-floats-return-ABI] [`i586-pc-nto-qnx700`](platform-support/nto-qnx.md) | * | | 32-bit x86 QNX Neutrino 7.0 RTOS [^x86_32-floats-return-ABI] @@ -332,15 +335,15 @@ target | std | host | notes [`sparc-unknown-none-elf`](./platform-support/sparc-unknown-none-elf.md) | * | | Bare 32-bit SPARC V7+ [`sparc64-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | NetBSD/sparc64 [`sparc64-unknown-openbsd`](platform-support/openbsd.md) | ✓ | ✓ | OpenBSD/sparc64 -`thumbv4t-none-eabi` | * | | Thumb-mode Bare ARMv4T -[`thumbv5te-none-eabi`](platform-support/armv5te-none-eabi.md) | * | | Thumb-mode Bare ARMv5TE +[`thumbv4t-none-eabi`](platform-support/armv4t-none-eabi.md) | * | | Thumb-mode Bare ARMv4T +[`thumbv5te-none-eabi`](platform-support/armv5te-none-eabi.md) | * | | Thumb-mode Bare ARMv5TE `thumbv7a-pc-windows-msvc` | ? | | `thumbv7a-uwp-windows-msvc` | ✓ | | `thumbv7neon-unknown-linux-musleabihf` | ? | | Thumb2-mode ARMv7-A Linux with NEON, MUSL [`wasm64-unknown-unknown`](platform-support/wasm64-unknown-unknown.md) | ? | | WebAssembly `x86_64-apple-ios-macabi` | ✓ | | Apple Catalyst on x86_64 -[`x86_64-apple-tvos`](platform-support/apple-tvos.md) | ? | | x86 64-bit tvOS -[`x86_64-apple-watchos-sim`](platform-support/apple-watchos.md) | ✓ | | x86 64-bit Apple WatchOS simulator +[`x86_64-apple-tvos`](platform-support/apple-tvos.md) | ? | | x86 64-bit tvOS +[`x86_64-apple-watchos-sim`](platform-support/apple-watchos.md) | ✓ | | x86 64-bit Apple WatchOS simulator [`x86_64-pc-nto-qnx710`](platform-support/nto-qnx.md) | ✓ | | x86 64-bit QNX Neutrino 7.1 RTOS | [`x86_64-pc-windows-gnullvm`](platform-support/pc-windows-gnullvm.md) | ✓ | ✓ | `x86_64-pc-windows-msvc` | * | | 64-bit Windows XP support diff --git a/src/doc/rustc/src/platform-support/apple-watchos.md b/src/doc/rustc/src/platform-support/apple-watchos.md index fe4c7c0c88f..7be2467352c 100644 --- a/src/doc/rustc/src/platform-support/apple-watchos.md +++ b/src/doc/rustc/src/platform-support/apple-watchos.md @@ -1,6 +1,7 @@ # *-apple-watchos - arm64_32-apple-watchos - armv7k-apple-watchos +- aarch64-apple-watchos - aarch64-apple-watchos-sim - x86_64-apple-watchos-sim @@ -9,6 +10,7 @@ Apple WatchOS targets: - Apple WatchOS on Arm 64_32 - Apple WatchOS on Arm v7k +- Apple WatchOS on Arm 64 - Apple WatchOS Simulator on arm64 - Apple WatchOS Simulator on x86_64 @@ -16,6 +18,7 @@ Apple WatchOS targets: * [@deg4uss3r](https://github.com/deg4uss3r) * [@vladimir-ea](https://github.com/vladimir-ea) +* [@leohowell](https://github.com/leohowell) ## Requirements diff --git a/src/doc/rustc/src/platform-support/arm-none-eabi.md b/src/doc/rustc/src/platform-support/arm-none-eabi.md new file mode 100644 index 00000000000..4f76d0d7bbc --- /dev/null +++ b/src/doc/rustc/src/platform-support/arm-none-eabi.md @@ -0,0 +1,96 @@ +# `{arm,thumb}*-none-eabi(hf)?` + +**Tier: 2** +- [arm(eb)?v7r-none-eabi(hf)?](armv7r-none-eabi.md) +- armv7a-none-eabi +- thumbv6m-none-eabi +- thumbv7m-none-eabi +- thumbv7em-none-eabi(hf)? +- thumbv8m.base-none-eabi +- thumbv8m.main-none-eabi(hf)? + +**Tier: 3** +- [{arm,thumb}v4t-none-eabi](armv4t-none-eabi.md) +- [{arm,thumb}v5te-none-eabi](armv5te-none-eabi.md) +- armv7a-none-eabihf + +Bare-metal target for 32-bit ARM CPUs. + +If a target has a `*hf` variant, that variant uses the hardware floating-point +ABI and enables some minimum set of floating-point features based on the FPU(s) +available in that processor family. + +## Requirements + +These targets are cross-compiled and use static linking. + +By default, the `lld` linker included with Rust will be used; however, you may +want to use the GNU linker instead. This can be obtained for Windows/Mac/Linux +from the [Arm Developer Website][arm-gnu-toolchain], or possibly from your OS's +package manager. To use it, add the following to your `.cargo/config.toml`: + +```toml +[target.<your-target>] +linker = "arm-none-eabi-ld" +``` + +The GNU linker can also be used by specifying `arm-none-eabi-gcc` as the +linker. This is needed when using GCC's link time optimization. + +[arm-gnu-toolchain]: https://developer.arm.com/Tools%20and%20Software/GNU%20Toolchain + +These targets don't provide a linker script, so you'll need to bring your own +according to the specific device you are using. Pass +`-Clink-arg=-Tyour_script.ld` as a rustc argument to make the linker use +`your_script.ld` during linking. + +Targets named `thumb*` instead of `arm*` +generate Thumb-mode code by default. M-profile processors (`thumbv*m*-*` +targets) only support Thumb-mode code. +For the `arm*` targets, Thumb-mode code generation can be enabled by using +`-C target-feature=+thumb-mode`. Using the unstable +`#![feature(arm_target_feature)]`, the attribute +`#[target_feature(enable = "thumb-mode")]` can be applied to individual +`unsafe` functions to cause those functions to be compiled to Thumb-mode code. + +## Building Rust Programs + +For the Tier 3 targets in this family, rust does not ship pre-compiled +artifacts. + +Just use the `build-std` nightly cargo feature to build the `core` library. You +can pass this as a command line argument to cargo, or your `.cargo/config.toml` +file might include the following lines: + +```toml +[unstable] +build-std = ["core"] +``` + +Most of `core` should work as expected, with the following notes: +* If the target is not `*hf`, then floating-point operations are emulated in + software. +* Integer division is also emulated in software on some targets, depending on + the CPU. +* Architectures prior to ARMv7 don't have atomic instructions. + +`alloc` is also supported, as long as you provide your own global allocator. + +Rust programs are output as ELF files. + +## Testing + +This is a cross-compiled target that you will need to emulate during testing. + +The exact emulator that you'll need depends on the specific device you want to +run your code on. + +## Cross-compilation toolchains and C code + +The target supports C code compiled with the `arm-none-eabi` target triple and +a suitable `-march` or `-mcpu` flag. + +`gcc` or `clang` can be used, but note that `gcc` uses `-fshort-enums` by +default for `arm-none*` targets, while `clang` does not. `rustc` matches the +`gcc` behavior, i.e., the size of a `#[repr(C)] enum` in Rust can be as little +as 1 byte, rather than 4, as they are on `arm-linux` targets. diff --git a/src/doc/rustc/src/platform-support/armv4t-none-eabi.md b/src/doc/rustc/src/platform-support/armv4t-none-eabi.md index a230eba6bf9..29c47db8351 100644 --- a/src/doc/rustc/src/platform-support/armv4t-none-eabi.md +++ b/src/doc/rustc/src/platform-support/armv4t-none-eabi.md @@ -6,51 +6,16 @@ Bare-metal target for any cpu in the ARMv4T architecture family, supporting ARM/Thumb code interworking (aka `a32`/`t32`), with ARM code as the default code generation. -In particular this supports the Gameboy Advance (GBA), but there's nothing GBA -specific with this target, so any ARMv4T device should work fine. +In particular this supports the Game Boy Advance (GBA), but there's nothing +GBA-specific with this target, so any ARMv4T device should work fine. + +See [`arm-none-eabi`](arm-none-eabi.md) for information applicable to all +`arm-none-eabi` targets. ## Target Maintainers * [@Lokathor](https://github.com/lokathor) -## Requirements - -The target is cross-compiled, and uses static linking. - -This target doesn't provide a linker script, you'll need to bring your own -according to the specific device you want to target. Pass -`-Clink-arg=-Tyour_script.ld` as a rustc argument to make the linker use -`your_script.ld` during linking. - -## Building Rust Programs - -Because it is Tier 3, rust does not yet ship pre-compiled artifacts for this target. - -Just use the `build-std` nightly cargo feature to build the `core` library. You -can pass this as a command line argument to cargo, or your `.cargo/config.toml` -file might include the following lines: - -```toml -[unstable] -build-std = ["core"] -``` - -Most of `core` should work as expected, with the following notes: -* the target is "soft float", so `f32` and `f64` operations are emulated in - software. -* integer division is also emulated in software. -* the target is old enough that it doesn't have atomic instructions. - -Rust programs are output as ELF files. - -For running on hardware, you'll generally need to extract the "raw" program code -out of the ELF and into a file of its own. The `objcopy` program provided as -part of the GNU Binutils can do this: - -```shell -arm-none-eabi-objcopy --output-target binary [in_file] [out_file] -``` - ## Testing This is a cross-compiled target that you will need to emulate during testing. diff --git a/src/doc/rustc/src/platform-support/armv5te-none-eabi.md b/src/doc/rustc/src/platform-support/armv5te-none-eabi.md index f469dab1c42..37284ba7209 100644 --- a/src/doc/rustc/src/platform-support/armv5te-none-eabi.md +++ b/src/doc/rustc/src/platform-support/armv5te-none-eabi.md @@ -8,54 +8,13 @@ generation. The `thumbv5te-none-eabi` target is the same as this one, but the instruction set defaults to `t32`. +See [`arm-none-eabi`](arm-none-eabi.md) for information applicable to all +`arm-none-eabi` targets. + ## Target Maintainers * [@QuinnPainter](https://github.com/QuinnPainter) -## Requirements - -The target is cross-compiled, and uses static linking. - -By default, the `lld` linker included with Rust will be used. - -However, you may want to use the `arm-none-eabi-ld` linker instead. This can be obtained for Windows/Mac/Linux from the [ARM -Developer Website][arm-dev], or possibly from your OS's package manager. To use it, add the following to your `.cargo/config.toml`: - -```toml -[target.armv5te-none-eabi] -linker = "arm-none-eabi-ld" -``` - -[arm-dev]: https://developer.arm.com/Tools%20and%20Software/GNU%20Toolchain - -This target doesn't provide a linker script, you'll need to bring your own -according to the specific device you want to target. Pass -`-Clink-arg=-Tyour_script.ld` as a rustc argument to make the linker use -`your_script.ld` during linking. - -## Building Rust Programs - -Because it is Tier 3, rust does not yet ship pre-compiled artifacts for this target. - -Just use the `build-std` nightly cargo feature to build the `core` library. You -can pass this as a command line argument to cargo, or your `.cargo/config.toml` -file might include the following lines: - -```toml -[unstable] -build-std = ["core"] -``` - -Most of `core` should work as expected, with the following notes: -* the target is "soft float", so `f32` and `f64` operations are emulated in - software. -* integer division is also emulated in software. -* the target is old enough that it doesn't have atomic instructions. - -`alloc` is also supported, as long as you provide your own global allocator. - -Rust programs are output as ELF files. - ## Testing This is a cross-compiled target that you will need to emulate during testing. @@ -63,4 +22,5 @@ This is a cross-compiled target that you will need to emulate during testing. Because this is a device-agnostic target, and the exact emulator that you'll need depends on the specific device you want to run your code on. -For example, when programming for the DS, you can use one of the several available DS emulators, such as [melonDS](https://melonds.kuribo64.net/). +For example, when programming for the DS, you can use one of the several +available DS emulators, such as [melonDS](https://melonds.kuribo64.net/). diff --git a/src/doc/rustc/src/platform-support/armv7r-none-eabi.md b/src/doc/rustc/src/platform-support/armv7r-none-eabi.md new file mode 100644 index 00000000000..670cead9e00 --- /dev/null +++ b/src/doc/rustc/src/platform-support/armv7r-none-eabi.md @@ -0,0 +1,47 @@ +# `arm(eb)?v7r-none-eabi(hf)?` + +**Tier: 2** + +Bare-metal target for CPUs in the ARMv7-R architecture family, supporting +dual ARM/Thumb mode, with ARM mode as the default. + +Processors in this family include the [Arm Cortex-R4, 5, 7, and 8][cortex-r]. + +The `eb` versions of this target generate code for big-endian processors. + +See [`arm-none-eabi`](arm-none-eabi.md) for information applicable to all +`arm-none-eabi` targets. + +[cortex-r]: https://en.wikipedia.org/wiki/ARM_Cortex-R + +## Target maintainers + +- [Chris Copeland](https://github.com/chrisnc), `chris@chrisnc.net` + +## Requirements + +When using the big-endian version of this target, note that some variants of +the Cortex-R have both big-endian instructions and data. This configuration is +known as BE-32, while data-only big-endianness is known as BE-8. To build +programs for BE-32 processors, the GNU linker must be used with the `-mbe32` +option. See [ARM Cortex-R Series Programmer's Guide: Endianness][endianness] +for more details about different endian modes. + +When using the hardfloat targets, the minimum floating-point features assumed +are those of the `vfpv3-d16`, which includes single- and double-precision, with +16 double-precision registers. This floating-point unit appears in Cortex-R4F +and Cortex-R5F processors. See [VFP in the Cortex-R processors][vfp] +for more details on the possible FPU variants. + +If your processor supports a different set of floating-point features than the +default expectations of `vfpv3-d16`, then these should also be enabled or +disabled as needed with `-C target-feature=(+/-)`. + +[endianness]: https://developer.arm.com/documentation/den0042/a/Coding-for-Cortex-R-Processors/Endianness + +[vfp]: https://developer.arm.com/documentation/den0042/a/Floating-Point/Floating-point-basics-and-the-IEEE-754-standard/VFP-in-the-Cortex-R-processors + +## Cross-compilation toolchains and C code + +This target supports C code compiled with the `arm-none-eabi` target triple and +`-march=armv7-r` or a suitable `-mcpu` flag. diff --git a/src/doc/rustc/src/platform-support/hexagon-unknown-none-elf.md b/src/doc/rustc/src/platform-support/hexagon-unknown-none-elf.md new file mode 100644 index 00000000000..06423f0f8fa --- /dev/null +++ b/src/doc/rustc/src/platform-support/hexagon-unknown-none-elf.md @@ -0,0 +1,266 @@ +# `hexagon-unknown-none-elf` + +**Tier: 3** + +Rust for baremetal Hexagon DSPs. + +| Target | Descriptions | +| ------------------------ | ----------------------------------------- | +| hexagon-unknown-none-elf | Hexagon 32-bit (freestanding, hardfloat) | + +## Target maintainers + +- [Brian Cain](https://github.com/androm3da), `bcain@quicinc.com` + +## Requirements + +This target is cross-compiled. There is no support for `std`. There is no +default allocator, but it's possible to use `alloc` by supplying an allocator. + +By default, code generated with this target should run on Hexagon DSP hardware. + +- `-Ctarget-cpu=hexagonv73` adds support for instructions defined up to Hexagon V73. + +Functions marked `extern "C"` use the [Hexagon architecture calling convention](https://lists.llvm.org/pipermail/llvm-dev/attachments/20190916/21516a52/attachment-0001.pdf). + +This target generates PIC ELF binaries. + +## Building the target + +You can build Rust with support for the target by adding it to the `target` +list in `config.toml`: + +```toml +[build] +build-stage = 1 +host = ["<target for your host>"] +target = ["<target for your host>", "hexagon-unknown-none-elf"] + +[target.hexagon-unknown-none-elf] + +cc = "hexagon-unknown-none-elf-clang" +cxx = "hexagon-unknown-none-elf-clang++" +linker = "hexagon-unknown-none-elf-clang" +llvm-libunwind = 'in-tree' +``` + +Replace `<target for your host>` with `x86_64-unknown-linux-gnu` or whatever +else is appropriate for your host machine. + +## Building Rust programs + +Rust does not yet ship pre-compiled artifacts for this target. To compile for +this target, you will either need to build Rust with the target enabled (see +"Building the target" above), or build your own copy of `core` by using +`build-std` or similar. + +## Testing + +Since `hexagon-unknown-none-elf` supports a variety of different environments and +does not support `std`, this target does not support running the Rust test suite. + +## Cross-compilation toolchains and C code + +This target has been tested using `qemu-system-hexagon`. + +A common use case for `hexagon-unknown-none-elf` is building libraries that +link against C code and can be used in emulation or on a device with a +Hexagon DSP. + +The Hexagon SDK has libraries which are useful to link against when running +on a device. + + +# Standalone OS + +The script below will build an executable against "hexagon standalone OS" +which is suitable for emulation or bare-metal on-device testing. + +First, run `cargo new --bin demo1_hexagon` then add the source below as +`src/main.rs`. This program demonstrates the console output via semihosting. + +```rust,ignore (platform-specific,eh-personality-is-unstable) +#![no_std] +#![no_main] + +extern "C" { + fn putchar(ch: i32); + fn _exit(code: i32) -> !; +} + +#[no_mangle] +extern "C" fn main() -> i32 { + let message = "Hello, this is Rust!"; + for b in message.bytes() { + unsafe { + putchar(b as i32); + } + } + 0 +} + +#[panic_handler] +fn panic(_panic: &core::panic::PanicInfo) -> ! { + unsafe { + _exit(1); + } +} + +``` + +Next, save the script below as `build.sh` and edit it to suit your +environment. + +* `hex_toolchain` below refers to the [hexagon toolchain using exclusively +public open source repos](https://github.com/quic/toolchain_for_hexagon/releases). +* `cc` below refers to clang. You can use `clang` from your distribution, as +long as it's at least `clang-17`. Or you can use +`hexagon-unknown-none-elf-clang` from one of the [hexagon open source toolchain +releases](https://github.com/quic/toolchain_for_hexagon/releases). + +```sh +# Hexagon SDK, required for target libraries: +hex_sdk_root=/local/mnt/workspace/Qualcomm/Hexagon_SDK/5.3.0.0 +hex_sdk_toolchain=${hex_sdk_root}/tools/HEXAGON_Tools/8.6.06 + +sdk_libs=${hex_sdk_toolchain}/Tools/target/hexagon/lib +q6_arch=v65 +g0_lib_path=${sdk_libs}/${q6_arch}/G0 +pic_lib_path=${sdk_libs}/${q6_arch}/G0/pic + +cargo build --target=hexagon-unknown-none-elf -Zbuild-std + +# Builds an executable against "hexagon standalone OS" suitable for emulation: +${cc} --target=hexagon-unknown-none-elf -o testit \ + -fuse-ld=lld \ + -m${q6_arch} \ + -nodefaultlibs \ + -nostartfiles \ + ${g0_lib_path}/crt0_standalone.o \ + ${g0_lib_path}/crt0.o \ + ${g0_lib_path}/init.o \ + -L${sdk_libs}/${q6_arch}/ \ + -L${sdk_libs}/ \ + testit.c \ + target/hexagon-unknown-none-elf/debug/libmin_ex_lib_lin.rlib \ + target/hexagon-unknown-none-elf/debug/deps/libcore-*.rlib \ + target/hexagon-unknown-none-elf/debug/deps/libcompiler_builtins-*.rlib \ + -Wl,--start-group \ + -Wl,--defsym,_SDA_BASE_=0,--defsym,__sbss_start=0,--defsym,__sbss_end=0 \ + -lstandalone \ + ${g0_lib_path}/libc.a \ + -lgcc \ + -lc_eh \ + -Wl,--end-group \ + ${g0_lib_path}/fini.o \ + +${hex_toolchain}/x86_64-linux-gnu/bin/qemu-system-hexagon -monitor none -display none -kernel ./testit +``` + +# QuRT OS + +First, run `cargo new --lib demo2_hexagon` then add the source below as +`src/lib.rs`. This program demonstrates inline assembly and console output +via semihosting. + +```rust,ignore (platform-specific,eh-personality-is-unstable) +#![no_std] +#![no_main] +#![feature(lang_items)] +#![feature(asm_experimental_arch)] + +use core::arch::asm; + +extern "C" { + fn putchar(ch: i32); + fn _exit(code: i32) -> !; +} + +fn hexagon_specific() { + let mut buffer = [0_u8; 128]; + + unsafe { + let mut x = &buffer; + asm!( + "{{\n\t", + " v0=vmem({addr}+#0)\n\t", + " {tmp} = and({tmp}, #1)\n\t", + "}}\n\t", + addr = in(reg) x, + tmp = out(reg) _, + ); + } +} + +#[no_mangle] +extern "C" fn hello() -> i32 { + let message = "Hello, this is Rust!\n"; + for b in message.bytes() { + unsafe { + putchar(b as i32); + } + } + hexagon_specific(); + 0 +} + +#[panic_handler] +fn panic(_panic: &core::panic::PanicInfo) -> ! { + unsafe { + _exit(1); + } +} + +#[lang = "eh_personality"] +fn rust_eh_personality() {} + +``` + +Next, save the script below as `build.sh` and edit it to suit your +environment. The script below will build a shared object against the QuRT +RTOS which is suitable for emulation or on-device testing when loaded via +the fastrpc-shell. + + +```sh +# Hexagon SDK, required for target libraries: +hex_sdk_root=/local/mnt/workspace/Qualcomm/Hexagon_SDK/5.3.0.0 +hex_sdk_toolchain=${hex_sdk_root}/tools/HEXAGON_Tools/8.6.06 + +sdk_libs=${hex_sdk_toolchain}/Tools/target/hexagon/lib +q6_arch=v65 +g0_lib_path=${sdk_libs}/${q6_arch}/G0 +pic_lib_path=${sdk_libs}/${q6_arch}/G0/pic +runelf=${hex_sdk_root}/rtos/qurt/computev65/sdksim_bin/runelf.pbn +rmohs=${hex_sdk_root}/libs/run_main_on_hexagon/ship/hexagon_toolv86_${q6_arch}/run_main_on_hexagon_sim + +# Builds a library suitable for loading into "run_main_on_hexagon_sim" for +# emulation or frpc shell on real target: +${cc} --target=hexagon-unknown-none-elf -o testit.so \ + -fuse-ld=lld \ + -fPIC -shared \ + -nostdlib \ + -Wl,-Bsymbolic \ + -Wl,--wrap=malloc \ + -Wl,--wrap=calloc \ + -Wl,--wrap=free \ + -Wl,--wrap=realloc \ + -Wl,--wrap=memalign \ + -m${q6_arch} \ + testit.c \ + target/hexagon-unknown-none-elf/debug/libmin_ex_lib_lin.rlib \ + target/hexagon-unknown-none-elf/debug/deps/libcore-*.rlib \ + target/hexagon-unknown-none-elf/debug/deps/libcompiler_builtins-*.rlib \ + -Wl,-soname=testit \ + ${pic_lib_path}/libc.so + +# -Bsymbolic above for memory alloc funcs is necessary to access the heap on +# target, but otherwise not required. + +# multi-stage loader: runelf => run_main_on_hexagon_sim => testit.so{`main`} +${hex_toolchain}/x86_64-linux-gnu/bin/qemu-system-hexagon \ + -monitor none \ + -display none \ + -kernel ${runelf} \ + -append "${rmohs} -- ./testit.so" +``` diff --git a/src/doc/rustc/src/platform-support/wasm32-wasi-preview1-threads.md b/src/doc/rustc/src/platform-support/wasm32-wasi-preview1-threads.md index 23b99924899..b719cb53aba 100644 --- a/src/doc/rustc/src/platform-support/wasm32-wasi-preview1-threads.md +++ b/src/doc/rustc/src/platform-support/wasm32-wasi-preview1-threads.md @@ -90,7 +90,7 @@ The target intends to match the corresponding Clang target for its `"C"` ABI. ## Platform requirements -The runtime should support the same set of APIs as any other supported wasi target for interacting with the host environment through the WASI standard. The runtime also should have implemetation of [wasi-threads proposal](https://github.com/WebAssembly/wasi-threads). +The runtime should support the same set of APIs as any other supported wasi target for interacting with the host environment through the WASI standard. The runtime also should have implementation of [wasi-threads proposal](https://github.com/WebAssembly/wasi-threads). This target is not a stable target. This means that there are a few engines which implement the `wasi-threads` feature and if they do they're likely behind a diff --git a/src/doc/rustdoc/src/how-to-write-documentation.md b/src/doc/rustdoc/src/how-to-write-documentation.md index acab1a93690..8994c01f824 100644 --- a/src/doc/rustdoc/src/how-to-write-documentation.md +++ b/src/doc/rustdoc/src/how-to-write-documentation.md @@ -267,6 +267,22 @@ you can wrap it like this: /// more documentation ``` +Please note that if you want to put markdown in the HTML tag and for it to +be interpreted as such, you need to have an empty line between the HTML tags +and your markdown content. For example if you want to use a link: + +```md +/// documentation +/// +/// <div class="warning"> +/// +/// Go to [this link](https://rust-lang.org)! +/// +/// </div> +/// +/// more documentation +``` + [`backtrace`]: https://docs.rs/backtrace/0.3.50/backtrace/ [commonmark markdown specification]: https://commonmark.org/ [commonmark quick reference]: https://commonmark.org/help/ diff --git a/src/doc/rustdoc/src/lints.md b/src/doc/rustdoc/src/lints.md index f15e6e451e7..7d573ac950d 100644 --- a/src/doc/rustdoc/src/lints.md +++ b/src/doc/rustdoc/src/lints.md @@ -415,9 +415,9 @@ warning: 1 warning emitted ## `redundant_explicit_links` -This lint is **warned by default**. It detects explicit links that are same +This lint is **warn-by-default**. It detects explicit links that are the same as computed automatic links. -This usually means the explicit links is removeable. For example: +This usually means the explicit links are removeable. For example: ```rust #![warn(rustdoc::redundant_explicit_links)] // note: unnecessary - warns by default. diff --git a/src/doc/unstable-book/src/compiler-flags/check-cfg.md b/src/doc/unstable-book/src/compiler-flags/check-cfg.md index a5b9169c9f3..8ab6e83d99e 100644 --- a/src/doc/unstable-book/src/compiler-flags/check-cfg.md +++ b/src/doc/unstable-book/src/compiler-flags/check-cfg.md @@ -107,7 +107,7 @@ fn poke_platypus() {} fn tame_lion() {} // This is UNEXPECTED, because 'windows' is a well known condition name, -// and because 'windows' doens't take any values, +// and because 'windows' doesn't take any values, // and will cause a compiler warning (by default). #[cfg(windows = "unix")] fn tame_windows() {} diff --git a/src/doc/unstable-book/src/compiler-flags/codegen-options.md b/src/doc/unstable-book/src/compiler-flags/codegen-options.md new file mode 100644 index 00000000000..31dfcdb199a --- /dev/null +++ b/src/doc/unstable-book/src/compiler-flags/codegen-options.md @@ -0,0 +1,56 @@ +# Unstable codegen options + +All of these options are passed to `rustc` via the `-C` flag, short for "codegen". The flags are +stable but some of their values are individually unstable, and also require using `-Z +unstable-options` to be accepted. + +## linker-flavor + +In addition to the stable set of linker flavors, the following unstable values also exist: +- `ptx`: use [`rust-ptx-linker`](https://github.com/denzp/rust-ptx-linker) + for Nvidia NVPTX GPGPU support. +- `bpf`: use [`bpf-linker`](https://github.com/alessandrod/bpf-linker) for eBPF support. + +Additionally, a set of more precise linker flavors also exists, for example allowing targets to +declare that they use the LLD linker by default. The following values are currently unstable, and +the goal is for them to become stable, and preferred in practice over the existing stable values: +- `gnu`: unix-like linker with GNU extensions +- `gnu-lld`: `gnu` using LLD +- `gnu-cc`: `gnu` using a C/C++ compiler as the linker driver +- `gnu-lld-cc`: `gnu` using LLD and a C/C++ compiler as the linker driver +- `darwin`: unix-like linker for Apple targets +- `darwin-lld`: `darwin` using LLD +- `darwin-cc`: `darwin` using a C/C++ compiler as the linker driver +- `darwin-lld-cc`: `darwin` using LLD and a C/C++ compiler as the linker driver +- `wasm-lld`: unix-like linker for Wasm targets, with LLD +- `wasm-lld-cc`: unix-like linker for Wasm targets, with LLD and a C/C++ compiler as the linker + driver +- `unix`: basic unix-like linker for "any other Unix" targets (Solaris/illumos, L4Re, MSP430, etc), + not supported with LLD. +- `unix-cc`: `unix` using a C/C++ compiler as the linker driver +- `msvc-lld`: MSVC-style linker for Windows and UEFI, with LLD +- `em-cc`: emscripten compiler frontend, similar to `wasm-lld-cc` with a different interface + +## link-self-contained + +This flag generally controls whether the linker will use libraries and objects shipped with Rust +instead of those in the system. The stable boolean values for this flag are coarse-grained +(everything or nothing), but there exists a set of unstable values with finer-grained control, +`-Clink-self-contained` can accept a comma-separated list of components, individually enabled +(`+component`) or disabled (`-component`): +- `crto`: CRT objects (e.g. on `windows-gnu`, `musl`, `wasi` targets) +- `libc`: libc static library (e.g. on `musl`, `wasi` targets) +- `unwind`: libgcc/libunwind (e.g. on `windows-gnu`, `fuchsia`, `fortanix`, `gnullvm` targets) +- `linker`: linker, dlltool, and their necessary libraries (e.g. on `windows-gnu` and for + `rust-lld`) +- `sanitizers`: sanitizer runtime libraries +- `mingw`: other MinGW libs and Windows import libs + +Out of the above self-contained linking components, `linker` is the only one currently implemented +(beyond parsing the CLI options). + +It refers to the LLD linker, built from the same LLVM revision used by rustc (named `rust-lld` to +avoid naming conflicts), that is distributed via `rustup` with the compiler (and is used by default +for the wasm targets). One can also opt-in to use it by combining this flag with an appropriate +linker flavor: for example, `-Clinker-flavor=gnu-lld-cc -Clink-self-contained=+linker` will use the +toolchain's `rust-lld` as the linker. diff --git a/src/doc/unstable-book/src/compiler-flags/env.md b/src/doc/unstable-book/src/compiler-flags/env.md index df0547dd24b..ac6d7474a9b 100644 --- a/src/doc/unstable-book/src/compiler-flags/env.md +++ b/src/doc/unstable-book/src/compiler-flags/env.md @@ -5,7 +5,11 @@ The tracking issue for this feature is: [#118372](https://github.com/rust-lang/r ------------------------ This option flag allows to specify environment variables value at compile time to be -used by `env!` and `option_env!` macros. +used by `env!` and `option_env!` macros. It also impacts `tracked_env::var` function +from the `proc_macro` crate. + +This information will be stored in the dep-info files. For more information about +dep-info files, take a look [here](https://doc.rust-lang.org/cargo/guide/build-cache.html#dep-info-files). When retrieving an environment variable value, the one specified by `--env` will take precedence. For example, if you want have `PATH=a` in your environment and pass: @@ -20,6 +24,21 @@ Then you will have: assert_eq!(env!("PATH"), "env"); ``` +It will trigger a new compilation if any of the `--env` argument value is different. +So if you first passed: + +```bash +--env A=B --env X=12 +``` + +and then on next compilation: + +```bash +--env A=B +``` + +`X` value is different (not set) so the code will be re-compiled. + Please note that on Windows, environment variables are case insensitive but case preserving whereas `rustc`'s environment variables are case sensitive. For example, having `Path` in your environment (case insensitive) is different than using diff --git a/src/etc/gdb_providers.py b/src/etc/gdb_providers.py index e851aa62634..7d7277d2408 100644 --- a/src/etc/gdb_providers.py +++ b/src/etc/gdb_providers.py @@ -154,7 +154,11 @@ class StdVecDequeProvider(printer_base): self._valobj = valobj self._head = int(valobj["head"]) self._size = int(valobj["len"]) - self._cap = int(valobj["buf"]["cap"]) + # BACKCOMPAT: rust 1.75 + cap = valobj["buf"]["cap"] + if cap.type.code != gdb.TYPE_CODE_INT: + cap = cap[ZERO_FIELD] + self._cap = int(cap) self._data_ptr = unwrap_unique_or_non_null(valobj["buf"]["ptr"]) def to_string(self): diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index 4c86b214646..cfb3f0a4eae 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -267,7 +267,8 @@ class StdVecSyntheticProvider: """Pretty-printer for alloc::vec::Vec<T> struct Vec<T> { buf: RawVec<T>, len: usize } - struct RawVec<T> { ptr: Unique<T>, cap: usize, ... } + rust 1.75: struct RawVec<T> { ptr: Unique<T>, cap: usize, ... } + rust 1.76: struct RawVec<T> { ptr: Unique<T>, cap: Cap(usize), ... } rust 1.31.1: struct Unique<T: ?Sized> { pointer: NonZero<*const T>, ... } rust 1.33.0: struct Unique<T: ?Sized> { pointer: *const T, ... } rust 1.62.0: struct Unique<T: ?Sized> { pointer: NonNull<T>, ... } @@ -390,7 +391,10 @@ class StdVecDequeSyntheticProvider: self.head = self.valobj.GetChildMemberWithName("head").GetValueAsUnsigned() self.size = self.valobj.GetChildMemberWithName("len").GetValueAsUnsigned() self.buf = self.valobj.GetChildMemberWithName("buf") - self.cap = self.buf.GetChildMemberWithName("cap").GetValueAsUnsigned() + cap = self.buf.GetChildMemberWithName("cap") + if cap.GetType().num_fields == 1: + cap = cap.GetChildAtIndex(0) + self.cap = cap.GetValueAsUnsigned() self.data_ptr = unwrap_unique_or_non_null(self.buf.GetChildMemberWithName("ptr")) diff --git a/src/etc/natvis/liballoc.natvis b/src/etc/natvis/liballoc.natvis index 00c17d83322..da307809f7b 100644 --- a/src/etc/natvis/liballoc.natvis +++ b/src/etc/natvis/liballoc.natvis @@ -4,7 +4,7 @@ <DisplayString>{{ len={len} }}</DisplayString> <Expand> <Item Name="[len]" ExcludeView="simple">len</Item> - <Item Name="[capacity]" ExcludeView="simple">buf.cap</Item> + <Item Name="[capacity]" ExcludeView="simple">buf.cap.__0</Item> <ArrayItems> <Size>len</Size> <ValuePointer>buf.ptr.pointer.pointer</ValuePointer> @@ -15,7 +15,7 @@ <DisplayString>{{ len={len} }}</DisplayString> <Expand> <Item Name="[len]" ExcludeView="simple">len</Item> - <Item Name="[capacity]" ExcludeView="simple">buf.cap</Item> + <Item Name="[capacity]" ExcludeView="simple">buf.cap.__0</Item> <CustomListItems> <Variable Name="i" InitialValue="0" /> <Size>len</Size> @@ -23,7 +23,7 @@ <If Condition="i == len"> <Break/> </If> - <Item>buf.ptr.pointer.pointer[(i + head) % buf.cap]</Item> + <Item>buf.ptr.pointer.pointer[(i + head) % buf.cap.__0]</Item> <Exec>i = i + 1</Exec> </Loop> </CustomListItems> @@ -45,7 +45,7 @@ <StringView>(char*)vec.buf.ptr.pointer.pointer,[vec.len]s8</StringView> <Expand> <Item Name="[len]" ExcludeView="simple">vec.len</Item> - <Item Name="[capacity]" ExcludeView="simple">vec.buf.cap</Item> + <Item Name="[capacity]" ExcludeView="simple">vec.buf.cap.__0</Item> <Synthetic Name="[chars]"> <DisplayString>{(char*)vec.buf.ptr.pointer.pointer,[vec.len]s8}</DisplayString> <Expand> diff --git a/src/librustdoc/clean/auto_trait.rs b/src/librustdoc/clean/auto_trait.rs index e692f4ef72e..9de547ba6dc 100644 --- a/src/librustdoc/clean/auto_trait.rs +++ b/src/librustdoc/clean/auto_trait.rs @@ -195,7 +195,7 @@ where // into a map. Each RegionTarget (either a RegionVid or a Region) maps // to its smaller and larger regions. Note that 'larger' regions correspond // to sub-regions in Rust code (e.g., in 'a: 'b, 'a is the larger region). - for constraint in regions.constraints.keys() { + for (constraint, _) in ®ions.constraints { match *constraint { Constraint::VarSubVar(r1, r2) => { { diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index 828e7f959b4..75f9560f526 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -2479,8 +2479,8 @@ fn clean_variant_data<'tcx>( .map(|disr| Discriminant { expr: Some(disr.body), value: disr.def_id.to_def_id() }); let kind = match variant { - hir::VariantData::Struct(..) => VariantKind::Struct(VariantStruct { - fields: variant.fields().iter().map(|x| clean_field(x, cx)).collect(), + hir::VariantData::Struct { fields, .. } => VariantKind::Struct(VariantStruct { + fields: fields.iter().map(|x| clean_field(x, cx)).collect(), }), hir::VariantData::Tuple(..) => { VariantKind::Tuple(variant.fields().iter().map(|x| clean_field(x, cx)).collect()) diff --git a/src/librustdoc/config.rs b/src/librustdoc/config.rs index 8e8b7ab346b..f3d63fad711 100644 --- a/src/librustdoc/config.rs +++ b/src/librustdoc/config.rs @@ -15,11 +15,11 @@ use rustc_session::config::{ use rustc_session::getopts; use rustc_session::lint::Level; use rustc_session::search_paths::SearchPath; -use rustc_session::EarlyErrorHandler; +use rustc_session::EarlyDiagCtxt; use rustc_span::edition::Edition; use rustc_target::spec::TargetTriple; -use crate::core::new_handler; +use crate::core::new_dcx; use crate::externalfiles::ExternalHtml; use crate::html; use crate::html::markdown::IdMap; @@ -320,38 +320,38 @@ impl Options { /// Parses the given command-line for options. If an error message or other early-return has /// been printed, returns `Err` with the exit code. pub(crate) fn from_matches( - handler: &mut EarlyErrorHandler, + early_dcx: &mut EarlyDiagCtxt, matches: &getopts::Matches, args: Vec<String>, ) -> Result<(Options, RenderOptions), i32> { // Check for unstable options. - nightly_options::check_nightly_options(handler, matches, &opts()); + nightly_options::check_nightly_options(early_dcx, matches, &opts()); if args.is_empty() || matches.opt_present("h") || matches.opt_present("help") { crate::usage("rustdoc"); return Err(0); } else if matches.opt_present("version") { - rustc_driver::version!(&handler, "rustdoc", matches); + rustc_driver::version!(&early_dcx, "rustdoc", matches); return Err(0); } - if rustc_driver::describe_flag_categories(handler, &matches) { + if rustc_driver::describe_flag_categories(early_dcx, &matches) { return Err(0); } - let color = config::parse_color(handler, matches); + let color = config::parse_color(early_dcx, matches); let config::JsonConfig { json_rendered, json_unused_externs, .. } = - config::parse_json(handler, matches); - let error_format = config::parse_error_format(handler, matches, color, json_rendered); + config::parse_json(early_dcx, matches); + let error_format = config::parse_error_format(early_dcx, matches, color, json_rendered); let diagnostic_width = matches.opt_get("diagnostic-width").unwrap_or_default(); - let codegen_options = CodegenOptions::build(handler, matches); - let unstable_opts = UnstableOptions::build(handler, matches); + let codegen_options = CodegenOptions::build(early_dcx, matches); + let unstable_opts = UnstableOptions::build(early_dcx, matches); - let diag = new_handler(error_format, None, diagnostic_width, &unstable_opts); + let dcx = new_dcx(error_format, None, diagnostic_width, &unstable_opts); // check for deprecated options - check_deprecated_options(matches, &diag); + check_deprecated_options(matches, &dcx); if matches.opt_strs("passes") == ["list"] { println!("Available passes for running rustdoc:"); @@ -391,7 +391,7 @@ impl Options { match kind.parse() { Ok(kind) => emit.push(kind), Err(()) => { - diag.err(format!("unrecognized emission type: {kind}")); + dcx.err(format!("unrecognized emission type: {kind}")); return Err(1); } } @@ -403,7 +403,7 @@ impl Options { && !matches.opt_present("show-coverage") && !nightly_options::is_unstable_enabled(matches) { - handler.early_error( + early_dcx.early_fatal( "the -Z unstable-options flag must be passed to enable --output-format for documentation generation (see https://github.com/rust-lang/rust/issues/76578)", ); } @@ -421,7 +421,7 @@ impl Options { let paths = match theme::load_css_paths(content) { Ok(p) => p, Err(e) => { - diag.struct_err(e).emit(); + dcx.struct_err(e).emit(); return Err(1); } }; @@ -430,7 +430,7 @@ impl Options { println!("rustdoc: [check-theme] Starting tests! (Ignoring all other arguments)"); for theme_file in to_check.iter() { print!(" - Checking \"{theme_file}\"..."); - let (success, differences) = theme::test_theme_against(theme_file, &paths, &diag); + let (success, differences) = theme::test_theme_against(theme_file, &paths, &dcx); if !differences.is_empty() || !success { println!(" FAILED"); errors += 1; @@ -447,27 +447,27 @@ impl Options { return Err(0); } - let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(handler, matches); + let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(early_dcx, matches); let input = PathBuf::from(if describe_lints { "" // dummy, this won't be used } else if matches.free.is_empty() { - diag.struct_err("missing file operand").emit(); + dcx.struct_err("missing file operand").emit(); return Err(1); } else if matches.free.len() > 1 { - diag.struct_err("too many file operands").emit(); + dcx.struct_err("too many file operands").emit(); return Err(1); } else { &matches.free[0] }); let libs = - matches.opt_strs("L").iter().map(|s| SearchPath::from_cli_opt(handler, s)).collect(); - let externs = parse_externs(handler, matches, &unstable_opts); + matches.opt_strs("L").iter().map(|s| SearchPath::from_cli_opt(early_dcx, s)).collect(); + let externs = parse_externs(early_dcx, matches, &unstable_opts); let extern_html_root_urls = match parse_extern_html_roots(matches) { Ok(ex) => ex, Err(err) => { - diag.struct_err(err).emit(); + dcx.struct_err(err).emit(); return Err(1); } }; @@ -526,7 +526,7 @@ impl Options { let no_run = matches.opt_present("no-run"); if !should_test && no_run { - diag.err("the `--test` flag must be passed to enable `--no-run`"); + dcx.err("the `--test` flag must be passed to enable `--no-run`"); return Err(1); } @@ -534,7 +534,7 @@ impl Options { let output = matches.opt_str("output").map(|s| PathBuf::from(&s)); let output = match (out_dir, output) { (Some(_), Some(_)) => { - diag.struct_err("cannot use both 'out-dir' and 'output' at once").emit(); + dcx.struct_err("cannot use both 'out-dir' and 'output' at once").emit(); return Err(1); } (Some(out_dir), None) => out_dir, @@ -549,7 +549,7 @@ impl Options { if let Some(ref p) = extension_css { if !p.is_file() { - diag.struct_err("option --extend-css argument must be a file").emit(); + dcx.struct_err("option --extend-css argument must be a file").emit(); return Err(1); } } @@ -567,7 +567,7 @@ impl Options { let paths = match theme::load_css_paths(content) { Ok(p) => p, Err(e) => { - diag.struct_err(e).emit(); + dcx.struct_err(e).emit(); return Err(1); } }; @@ -576,23 +576,23 @@ impl Options { matches.opt_strs("theme").iter().map(|s| (PathBuf::from(&s), s.to_owned())) { if !theme_file.is_file() { - diag.struct_err(format!("invalid argument: \"{theme_s}\"")) + dcx.struct_err(format!("invalid argument: \"{theme_s}\"")) .help("arguments to --theme must be files") .emit(); return Err(1); } if theme_file.extension() != Some(OsStr::new("css")) { - diag.struct_err(format!("invalid argument: \"{theme_s}\"")) + dcx.struct_err(format!("invalid argument: \"{theme_s}\"")) .help("arguments to --theme must have a .css extension") .emit(); return Err(1); } - let (success, ret) = theme::test_theme_against(&theme_file, &paths, &diag); + let (success, ret) = theme::test_theme_against(&theme_file, &paths, &dcx); if !success { - diag.struct_err(format!("error loading theme file: \"{theme_s}\"")).emit(); + dcx.struct_err(format!("error loading theme file: \"{theme_s}\"")).emit(); return Err(1); } else if !ret.is_empty() { - diag.struct_warn(format!( + dcx.struct_warn(format!( "theme file \"{theme_s}\" is missing CSS rules from the default theme", )) .warn("the theme may appear incorrect when loaded") @@ -605,7 +605,7 @@ impl Options { } } - let edition = config::parse_crate_edition(handler, matches); + let edition = config::parse_crate_edition(early_dcx, matches); let mut id_map = html::markdown::IdMap::new(); let Some(external_html) = ExternalHtml::load( @@ -615,7 +615,7 @@ impl Options { &matches.opt_strs("markdown-before-content"), &matches.opt_strs("markdown-after-content"), nightly_options::match_is_nightly_build(matches), - &diag, + &dcx, &mut id_map, edition, &None, @@ -626,7 +626,7 @@ impl Options { match matches.opt_str("r").as_deref() { Some("rust") | None => {} Some(s) => { - diag.struct_err(format!("unknown input format: {s}")).emit(); + dcx.struct_err(format!("unknown input format: {s}")).emit(); return Err(1); } } @@ -634,19 +634,19 @@ impl Options { let index_page = matches.opt_str("index-page").map(|s| PathBuf::from(&s)); if let Some(ref index_page) = index_page { if !index_page.is_file() { - diag.struct_err("option `--index-page` argument must be a file").emit(); + dcx.struct_err("option `--index-page` argument must be a file").emit(); return Err(1); } } - let target = parse_target_triple(handler, matches); + let target = parse_target_triple(early_dcx, matches); let show_coverage = matches.opt_present("show-coverage"); let crate_types = match parse_crate_types_from_list(matches.opt_strs("crate-type")) { Ok(types) => types, Err(e) => { - diag.struct_err(format!("unknown crate type: {e}")).emit(); + dcx.struct_err(format!("unknown crate type: {e}")).emit(); return Err(1); } }; @@ -655,7 +655,7 @@ impl Options { Some(s) => match OutputFormat::try_from(s.as_str()) { Ok(out_fmt) => { if !out_fmt.is_json() && show_coverage { - diag.struct_err( + dcx.struct_err( "html output format isn't supported for the --show-coverage option", ) .emit(); @@ -664,7 +664,7 @@ impl Options { out_fmt } Err(e) => { - diag.struct_err(e).emit(); + dcx.struct_err(e).emit(); return Err(1); } }, @@ -709,16 +709,16 @@ impl Options { let html_no_source = matches.opt_present("html-no-source"); if generate_link_to_definition && (show_coverage || output_format != OutputFormat::Html) { - diag.struct_err( + dcx.struct_err( "--generate-link-to-definition option can only be used with HTML output format", ) .emit(); return Err(1); } - let scrape_examples_options = ScrapeExamplesOptions::new(matches, &diag)?; + let scrape_examples_options = ScrapeExamplesOptions::new(matches, &dcx)?; let with_examples = matches.opt_strs("with-examples"); - let call_locations = crate::scrape_examples::load_call_locations(with_examples, &diag)?; + let call_locations = crate::scrape_examples::load_call_locations(with_examples, &dcx)?; let unstable_features = rustc_feature::UnstableFeatures::from_environment(crate_name.as_deref()); @@ -803,12 +803,12 @@ impl Options { } /// Prints deprecation warnings for deprecated options -fn check_deprecated_options(matches: &getopts::Matches, diag: &rustc_errors::Handler) { +fn check_deprecated_options(matches: &getopts::Matches, dcx: &rustc_errors::DiagCtxt) { let deprecated_flags = []; for &flag in deprecated_flags.iter() { if matches.opt_present(flag) { - diag.struct_warn(format!("the `{flag}` flag is deprecated")) + dcx.struct_warn(format!("the `{flag}` flag is deprecated")) .note( "see issue #44136 <https://github.com/rust-lang/rust/issues/44136> \ for more information", @@ -821,7 +821,7 @@ fn check_deprecated_options(matches: &getopts::Matches, diag: &rustc_errors::Han for &flag in removed_flags.iter() { if matches.opt_present(flag) { - let mut err = diag.struct_warn(format!("the `{flag}` flag no longer functions")); + let mut err = dcx.struct_warn(format!("the `{flag}` flag no longer functions")); err.note( "see issue #44136 <https://github.com/rust-lang/rust/issues/44136> \ for more information", diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs index 0150496990d..4e904ffd768 100644 --- a/src/librustdoc/core.rs +++ b/src/librustdoc/core.rs @@ -120,16 +120,16 @@ impl<'tcx> DocContext<'tcx> { } } -/// Creates a new diagnostic `Handler` that can be used to emit warnings and errors. +/// Creates a new `DiagCtxt` that can be used to emit warnings and errors. /// /// If the given `error_format` is `ErrorOutputType::Json` and no `SourceMap` is given, a new one -/// will be created for the handler. -pub(crate) fn new_handler( +/// will be created for the `DiagCtxt`. +pub(crate) fn new_dcx( error_format: ErrorOutputType, source_map: Option<Lrc<source_map::SourceMap>>, diagnostic_width: Option<usize>, unstable_opts: &UnstableOptions, -) -> rustc_errors::Handler { +) -> rustc_errors::DiagCtxt { let fallback_bundle = rustc_errors::fallback_fluent_bundle( rustc_driver::DEFAULT_LOCALE_RESOURCES.to_vec(), false, @@ -169,8 +169,7 @@ pub(crate) fn new_handler( } }; - rustc_errors::Handler::with_emitter(emitter) - .with_flags(unstable_opts.diagnostic_handler_flags(true)) + rustc_errors::DiagCtxt::with_emitter(emitter).with_flags(unstable_opts.dcx_flags(true)) } /// Parse, resolve, and typecheck the given crate. @@ -386,9 +385,9 @@ pub(crate) fn run_global_ctxt( ); } - fn report_deprecated_attr(name: &str, diag: &rustc_errors::Handler, sp: Span) { + fn report_deprecated_attr(name: &str, dcx: &rustc_errors::DiagCtxt, sp: Span) { let mut msg = - diag.struct_span_warn(sp, format!("the `#![doc({name})]` attribute is deprecated")); + dcx.struct_span_warn(sp, format!("the `#![doc({name})]` attribute is deprecated")); msg.note( "see issue #44136 <https://github.com/rust-lang/rust/issues/44136> \ for more information", @@ -408,19 +407,19 @@ pub(crate) fn run_global_ctxt( // Process all of the crate attributes, extracting plugin metadata along // with the passes which we are supposed to run. for attr in krate.module.attrs.lists(sym::doc) { - let diag = ctxt.sess().diagnostic(); + let dcx = ctxt.sess().dcx(); let name = attr.name_or_empty(); // `plugins = "..."`, `no_default_passes`, and `passes = "..."` have no effect if attr.is_word() && name == sym::no_default_passes { - report_deprecated_attr("no_default_passes", diag, attr.span()); + report_deprecated_attr("no_default_passes", dcx, attr.span()); } else if attr.value_str().is_some() { match name { sym::passes => { - report_deprecated_attr("passes = \"...\"", diag, attr.span()); + report_deprecated_attr("passes = \"...\"", dcx, attr.span()); } sym::plugins => { - report_deprecated_attr("plugins = \"...\"", diag, attr.span()); + report_deprecated_attr("plugins = \"...\"", dcx, attr.span()); } _ => (), } @@ -448,7 +447,7 @@ pub(crate) fn run_global_ctxt( tcx.sess.time("check_lint_expectations", || tcx.check_expectations(Some(sym::rustdoc))); - if tcx.sess.diagnostic().has_errors_or_lint_errors().is_some() { + if tcx.sess.dcx().has_errors_or_lint_errors().is_some() { rustc_errors::FatalError.raise(); } diff --git a/src/librustdoc/doctest.rs b/src/librustdoc/doctest.rs index 172b7243627..c74f2ecb018 100644 --- a/src/librustdoc/doctest.rs +++ b/src/librustdoc/doctest.rs @@ -150,7 +150,7 @@ pub(crate) fn run(options: RustdocOptions) -> Result<(), ErrorGuaranteed> { collector }); - if compiler.sess.diagnostic().has_errors_or_lint_errors().is_some() { + if compiler.sess.dcx().has_errors_or_lint_errors().is_some() { FatalError.raise(); } @@ -558,7 +558,7 @@ pub(crate) fn make_test( let result = rustc_driver::catch_fatal_errors(|| { rustc_span::create_session_if_not_set_then(edition, |_| { use rustc_errors::emitter::{Emitter, EmitterWriter}; - use rustc_errors::Handler; + use rustc_errors::DiagCtxt; use rustc_parse::parser::ForceCollect; use rustc_span::source_map::FilePathMapping; @@ -579,8 +579,8 @@ pub(crate) fn make_test( let emitter = EmitterWriter::new(Box::new(io::sink()), fallback_bundle); // FIXME(misdreavus): pass `-Z treat-err-as-bug` to the doctest parser - let handler = Handler::with_emitter(Box::new(emitter)).disable_warnings(); - let sess = ParseSess::with_span_handler(handler, sm); + let dcx = DiagCtxt::with_emitter(Box::new(emitter)).disable_warnings(); + let sess = ParseSess::with_dcx(dcx, sm); let mut found_main = false; let mut found_extern_crate = crate_name.is_none(); @@ -638,10 +638,10 @@ pub(crate) fn make_test( } // Reset errors so that they won't be reported as compiler bugs when dropping the - // handler. Any errors in the tests will be reported when the test file is compiled, + // dcx. Any errors in the tests will be reported when the test file is compiled, // Note that we still need to cancel the errors above otherwise `DiagnosticBuilder` // will panic on drop. - sess.span_diagnostic.reset_err_count(); + sess.dcx.reset_err_count(); (found_main, found_extern_crate, found_macro) }) @@ -740,7 +740,7 @@ fn check_if_attr_is_complete(source: &str, edition: Edition) -> bool { rustc_driver::catch_fatal_errors(|| { rustc_span::create_session_if_not_set_then(edition, |_| { use rustc_errors::emitter::EmitterWriter; - use rustc_errors::Handler; + use rustc_errors::DiagCtxt; use rustc_span::source_map::FilePathMapping; let filename = FileName::anon_source_code(source); @@ -754,8 +754,8 @@ fn check_if_attr_is_complete(source: &str, edition: Edition) -> bool { let emitter = EmitterWriter::new(Box::new(io::sink()), fallback_bundle); - let handler = Handler::with_emitter(Box::new(emitter)).disable_warnings(); - let sess = ParseSess::with_span_handler(handler, sm); + let dcx = DiagCtxt::with_emitter(Box::new(emitter)).disable_warnings(); + let sess = ParseSess::with_dcx(dcx, sm); let mut parser = match maybe_new_parser_from_source_str(&sess, filename, source.to_owned()) { Ok(p) => p, diff --git a/src/librustdoc/externalfiles.rs b/src/librustdoc/externalfiles.rs index b34b69b1f15..8bc0cdf3a95 100644 --- a/src/librustdoc/externalfiles.rs +++ b/src/librustdoc/externalfiles.rs @@ -27,15 +27,15 @@ impl ExternalHtml { md_before_content: &[String], md_after_content: &[String], nightly_build: bool, - diag: &rustc_errors::Handler, + dcx: &rustc_errors::DiagCtxt, id_map: &mut IdMap, edition: Edition, playground: &Option<Playground>, ) -> Option<ExternalHtml> { let codes = ErrorCodes::from(nightly_build); - let ih = load_external_files(in_header, diag)?; - let bc = load_external_files(before_content, diag)?; - let m_bc = load_external_files(md_before_content, diag)?; + let ih = load_external_files(in_header, dcx)?; + let bc = load_external_files(before_content, dcx)?; + let m_bc = load_external_files(md_before_content, dcx)?; let bc = format!( "{bc}{}", Markdown { @@ -51,8 +51,8 @@ impl ExternalHtml { } .into_string() ); - let ac = load_external_files(after_content, diag)?; - let m_ac = load_external_files(md_after_content, diag)?; + let ac = load_external_files(after_content, dcx)?; + let m_ac = load_external_files(md_after_content, dcx)?; let ac = format!( "{ac}{}", Markdown { @@ -79,13 +79,13 @@ pub(crate) enum LoadStringError { pub(crate) fn load_string<P: AsRef<Path>>( file_path: P, - diag: &rustc_errors::Handler, + dcx: &rustc_errors::DiagCtxt, ) -> Result<String, LoadStringError> { let file_path = file_path.as_ref(); let contents = match fs::read(file_path) { Ok(bytes) => bytes, Err(e) => { - diag.struct_err(format!( + dcx.struct_err(format!( "error reading `{file_path}`: {e}", file_path = file_path.display() )) @@ -96,16 +96,16 @@ pub(crate) fn load_string<P: AsRef<Path>>( match str::from_utf8(&contents) { Ok(s) => Ok(s.to_string()), Err(_) => { - diag.struct_err(format!("error reading `{}`: not UTF-8", file_path.display())).emit(); + dcx.struct_err(format!("error reading `{}`: not UTF-8", file_path.display())).emit(); Err(LoadStringError::BadUtf8) } } } -fn load_external_files(names: &[String], diag: &rustc_errors::Handler) -> Option<String> { +fn load_external_files(names: &[String], dcx: &rustc_errors::DiagCtxt) -> Option<String> { let mut out = String::new(); for name in names { - let Ok(s) = load_string(name, diag) else { return None }; + let Ok(s) = load_string(name, dcx) else { return None }; out.push_str(&s); out.push('\n'); } diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css index 6e673aa77c5..665bb5d42bc 100644 --- a/src/librustdoc/html/static/css/rustdoc.css +++ b/src/librustdoc/html/static/css/rustdoc.css @@ -1367,6 +1367,9 @@ documentation. */ font-weight: bold; font-size: 1.25rem; } +.top-doc > .docblock >.warning:first-child::before { + top: 20px; +} a.test-arrow { visibility: hidden; diff --git a/src/librustdoc/json/conversions.rs b/src/librustdoc/json/conversions.rs index 61376ab31dd..513e94afe29 100644 --- a/src/librustdoc/json/conversions.rs +++ b/src/librustdoc/json/conversions.rs @@ -648,10 +648,12 @@ impl FromWithTcx<clean::Trait> for Trait { fn from_tcx(trait_: clean::Trait, tcx: TyCtxt<'_>) -> Self { let is_auto = trait_.is_auto(tcx); let is_unsafe = trait_.unsafety(tcx) == rustc_hir::Unsafety::Unsafe; + let is_object_safe = trait_.is_object_safe(tcx); let clean::Trait { items, generics, bounds, .. } = trait_; Trait { is_auto, is_unsafe, + is_object_safe, items: ids(items, tcx), generics: generics.into_tcx(tcx), bounds: bounds.into_tcx(tcx), diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs index 1c02e0ba76e..19db429ad8a 100644 --- a/src/librustdoc/lib.rs +++ b/src/librustdoc/lib.rs @@ -82,7 +82,7 @@ use rustc_errors::ErrorGuaranteed; use rustc_interface::interface; use rustc_middle::ty::TyCtxt; use rustc_session::config::{make_crate_type_option, ErrorOutputType, RustcOptGroup}; -use rustc_session::{getopts, EarlyErrorHandler}; +use rustc_session::{getopts, EarlyDiagCtxt}; use crate::clean::utils::DOC_RUST_LANG_ORG_CHANNEL; @@ -157,7 +157,7 @@ pub fn main() { } } - let mut handler = EarlyErrorHandler::new(ErrorOutputType::default()); + let mut early_dcx = EarlyDiagCtxt::new(ErrorOutputType::default()); let using_internal_features = rustc_driver::install_ice_hook( "https://github.com/rust-lang/rust/issues/new\ @@ -175,11 +175,11 @@ pub fn main() { // `debug_logging = true` is because all rustc logging goes to its version of tracing (the one // in the sysroot), and all of rustdoc's logging goes to its version (the one in Cargo.toml). - init_logging(&handler); - rustc_driver::init_logger(&handler, rustc_log::LoggerConfig::from_env("RUSTDOC_LOG")); + init_logging(&early_dcx); + rustc_driver::init_logger(&early_dcx, rustc_log::LoggerConfig::from_env("RUSTDOC_LOG")); - let exit_code = rustc_driver::catch_with_exit_code(|| match get_args(&handler) { - Some(args) => main_args(&mut handler, &args, using_internal_features), + let exit_code = rustc_driver::catch_with_exit_code(|| match get_args(&early_dcx) { + Some(args) => main_args(&mut early_dcx, &args, using_internal_features), _ => { #[allow(deprecated)] @@ -189,15 +189,15 @@ pub fn main() { process::exit(exit_code); } -fn init_logging(handler: &EarlyErrorHandler) { +fn init_logging(early_dcx: &EarlyDiagCtxt) { let color_logs = match std::env::var("RUSTDOC_LOG_COLOR").as_deref() { Ok("always") => true, Ok("never") => false, Ok("auto") | Err(VarError::NotPresent) => io::stdout().is_terminal(), - Ok(value) => handler.early_error(format!( + Ok(value) => early_dcx.early_fatal(format!( "invalid log color value '{value}': expected one of always, never, or auto", )), - Err(VarError::NotUnicode(value)) => handler.early_error(format!( + Err(VarError::NotUnicode(value)) => early_dcx.early_fatal(format!( "invalid log color value '{}': expected one of always, never, or auto", value.to_string_lossy() )), @@ -220,13 +220,13 @@ fn init_logging(handler: &EarlyErrorHandler) { tracing::subscriber::set_global_default(subscriber).unwrap(); } -fn get_args(handler: &EarlyErrorHandler) -> Option<Vec<String>> { +fn get_args(early_dcx: &EarlyDiagCtxt) -> Option<Vec<String>> { env::args_os() .enumerate() .map(|(i, arg)| { arg.into_string() .map_err(|arg| { - handler.early_warn(format!("Argument {i} is not valid Unicode: {arg:?}")); + early_dcx.early_warn(format!("Argument {i} is not valid Unicode: {arg:?}")); }) .ok() }) @@ -673,11 +673,11 @@ fn usage(argv0: &str) { /// A result type used by several functions under `main()`. type MainResult = Result<(), ErrorGuaranteed>; -fn wrap_return(diag: &rustc_errors::Handler, res: Result<(), String>) -> MainResult { +fn wrap_return(dcx: &rustc_errors::DiagCtxt, res: Result<(), String>) -> MainResult { match res { - Ok(()) => diag.has_errors().map_or(Ok(()), Err), + Ok(()) => dcx.has_errors().map_or(Ok(()), Err), Err(err) => { - let reported = diag.struct_err(err).emit(); + let reported = dcx.struct_err(err).emit(); Err(reported) } } @@ -704,7 +704,7 @@ fn run_renderer<'tcx, T: formats::FormatRenderer<'tcx>>( } fn main_args( - handler: &mut EarlyErrorHandler, + early_dcx: &mut EarlyDiagCtxt, at_args: &[String], using_internal_features: Arc<AtomicBool>, ) -> MainResult { @@ -718,7 +718,7 @@ fn main_args( // the compiler with @empty_file as argv[0] and no more arguments. let at_args = at_args.get(1..).unwrap_or_default(); - let args = rustc_driver::args::arg_expand_all(handler, at_args); + let args = rustc_driver::args::arg_expand_all(early_dcx, at_args); let mut options = getopts::Options::new(); for option in opts() { @@ -727,13 +727,13 @@ fn main_args( let matches = match options.parse(&args) { Ok(m) => m, Err(err) => { - handler.early_error(err.to_string()); + early_dcx.early_fatal(err.to_string()); } }; // Note that we discard any distinction between different non-zero exit // codes from `from_matches` here. - let (options, render_options) = match config::Options::from_matches(handler, &matches, args) { + let (options, render_options) = match config::Options::from_matches(early_dcx, &matches, args) { Ok(opts) => opts, Err(code) => { return if code == 0 { @@ -745,12 +745,8 @@ fn main_args( } }; - let diag = core::new_handler( - options.error_format, - None, - options.diagnostic_width, - &options.unstable_opts, - ); + let diag = + core::new_dcx(options.error_format, None, options.diagnostic_width, &options.unstable_opts); match (options.should_test, options.markdown_input()) { (true, true) => return wrap_return(&diag, markdown::test(options)), @@ -774,7 +770,7 @@ fn main_args( } // need to move these items separately because we lose them by the time the closure is called, - // but we can't create the Handler ahead of time because it's not Send + // but we can't create the dcx ahead of time because it's not Send let show_coverage = options.show_coverage; let run_check = options.run_check; @@ -803,7 +799,7 @@ fn main_args( compiler.enter(|queries| { let mut gcx = abort_on_err(queries.global_ctxt(), sess); - if sess.diagnostic().has_errors_or_lint_errors().is_some() { + if sess.dcx().has_errors_or_lint_errors().is_some() { sess.fatal("Compilation failed, aborting rustdoc"); } diff --git a/src/librustdoc/lint.rs b/src/librustdoc/lint.rs index 267f1cb0b72..f78743a7917 100644 --- a/src/librustdoc/lint.rs +++ b/src/librustdoc/lint.rs @@ -186,8 +186,8 @@ declare_rustdoc_lint! { } declare_rustdoc_lint! { - /// This lint is **warned by default**. It detects explicit links that are same - /// as computed automatic links. This usually means the explicit links is removeable. + /// This lint is **warn-by-default**. It detects explicit links that are the same + /// as computed automatic links. This usually means the explicit links are removeable. /// This is a `rustdoc` only lint, see the documentation in the [rustdoc book]. /// /// [rustdoc book]: ../../../rustdoc/lints.html#redundant_explicit_links diff --git a/src/librustdoc/passes/check_custom_code_classes.rs b/src/librustdoc/passes/check_custom_code_classes.rs index f246e2962fe..73f71cc062b 100644 --- a/src/librustdoc/passes/check_custom_code_classes.rs +++ b/src/librustdoc/passes/check_custom_code_classes.rs @@ -66,9 +66,8 @@ pub(crate) fn look_for_custom_classes<'tcx>(cx: &DocContext<'tcx>, item: &Item) if !tests.custom_classes_found.is_empty() { let span = item.attr_span(cx.tcx); let sess = &cx.tcx.sess.parse_sess; - let mut err = sess - .span_diagnostic - .struct_span_warn(span, "custom classes in code blocks will change behaviour"); + let mut err = + sess.dcx.struct_span_warn(span, "custom classes in code blocks will change behaviour"); add_feature_diagnostics_for_issue( &mut err, sess, diff --git a/src/librustdoc/passes/collect_trait_impls.rs b/src/librustdoc/passes/collect_trait_impls.rs index b6f73d3fdcd..df2e8584b84 100644 --- a/src/librustdoc/passes/collect_trait_impls.rs +++ b/src/librustdoc/passes/collect_trait_impls.rs @@ -22,7 +22,7 @@ pub(crate) fn collect_trait_impls(mut krate: Crate, cx: &mut DocContext<'_>) -> let tcx = cx.tcx; // We need to check if there are errors before running this pass because it would crash when // we try to get auto and blanket implementations. - if tcx.sess.diagnostic().has_errors_or_lint_errors().is_some() { + if tcx.sess.dcx().has_errors_or_lint_errors().is_some() { return krate; } diff --git a/src/librustdoc/passes/lint/check_code_block_syntax.rs b/src/librustdoc/passes/lint/check_code_block_syntax.rs index b5583ae4520..53c7f0f6e15 100644 --- a/src/librustdoc/passes/lint/check_code_block_syntax.rs +++ b/src/librustdoc/passes/lint/check_code_block_syntax.rs @@ -3,7 +3,7 @@ use rustc_data_structures::sync::{Lock, Lrc}; use rustc_errors::{ emitter::Emitter, translation::{to_fluent_args, Translate}, - Applicability, Diagnostic, Handler, LazyFallbackBundle, + Applicability, DiagCtxt, Diagnostic, LazyFallbackBundle, }; use rustc_parse::parse_stream_from_source_str; use rustc_resolve::rustdoc::source_span_for_markdown_range; @@ -42,9 +42,9 @@ fn check_rust_syntax( let emitter = BufferEmitter { buffer: Lrc::clone(&buffer), fallback_bundle }; let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let handler = Handler::with_emitter(Box::new(emitter)).disable_warnings(); + let dcx = DiagCtxt::with_emitter(Box::new(emitter)).disable_warnings(); let source = dox[code_block.code].to_owned(); - let sess = ParseSess::with_span_handler(handler, sm); + let sess = ParseSess::with_dcx(dcx, sm); let edition = code_block.lang_string.edition.unwrap_or_else(|| cx.tcx.sess.edition()); let expn_data = @@ -161,7 +161,7 @@ impl Emitter for BufferEmitter { let fluent_args = to_fluent_args(diag.args()); let translated_main_message = self - .translate_message(&diag.message[0].0, &fluent_args) + .translate_message(&diag.messages[0].0, &fluent_args) .unwrap_or_else(|e| panic!("{e}")); buffer.messages.push(format!("error from rustc: {translated_main_message}")); diff --git a/src/librustdoc/scrape_examples.rs b/src/librustdoc/scrape_examples.rs index 14680fdb064..a343d7afcee 100644 --- a/src/librustdoc/scrape_examples.rs +++ b/src/librustdoc/scrape_examples.rs @@ -40,7 +40,7 @@ pub(crate) struct ScrapeExamplesOptions { impl ScrapeExamplesOptions { pub(crate) fn new( matches: &getopts::Matches, - diag: &rustc_errors::Handler, + dcx: &rustc_errors::DiagCtxt, ) -> Result<Option<Self>, i32> { let output_path = matches.opt_str("scrape-examples-output-path"); let target_crates = matches.opt_strs("scrape-examples-target-crate"); @@ -52,11 +52,11 @@ impl ScrapeExamplesOptions { scrape_tests, })), (Some(_), false, _) | (None, true, _) => { - diag.err("must use --scrape-examples-output-path and --scrape-examples-target-crate together"); + dcx.err("must use --scrape-examples-output-path and --scrape-examples-target-crate together"); Err(1) } (None, false, true) => { - diag.err("must use --scrape-examples-output-path and --scrape-examples-target-crate with --scrape-tests"); + dcx.err("must use --scrape-examples-output-path and --scrape-examples-target-crate with --scrape-tests"); Err(1) } (None, false, false) => Ok(None), @@ -311,7 +311,7 @@ pub(crate) fn run( // The visitor might have found a type error, which we need to // promote to a fatal error - if tcx.sess.diagnostic().has_errors_or_lint_errors().is_some() { + if tcx.sess.dcx().has_errors_or_lint_errors().is_some() { return Err(String::from("Compilation failed, aborting rustdoc")); } @@ -337,10 +337,11 @@ pub(crate) fn run( Ok(()) } -// Note: the Handler must be passed in explicitly because sess isn't available while parsing options +// Note: the DiagCtxt must be passed in explicitly because sess isn't available while parsing +// options. pub(crate) fn load_call_locations( with_examples: Vec<String>, - diag: &rustc_errors::Handler, + dcx: &rustc_errors::DiagCtxt, ) -> Result<AllCallLocations, i32> { let inner = || { let mut all_calls: AllCallLocations = FxHashMap::default(); @@ -358,7 +359,7 @@ pub(crate) fn load_call_locations( }; inner().map_err(|e: String| { - diag.err(format!("failed to load examples: {e}")); + dcx.err(format!("failed to load examples: {e}")); 1 }) } diff --git a/src/librustdoc/theme.rs b/src/librustdoc/theme.rs index 8c1acbd7347..98010b056c9 100644 --- a/src/librustdoc/theme.rs +++ b/src/librustdoc/theme.rs @@ -5,7 +5,7 @@ use std::iter::Peekable; use std::path::Path; use std::str::Chars; -use rustc_errors::Handler; +use rustc_errors::DiagCtxt; #[cfg(test)] mod tests; @@ -236,7 +236,7 @@ pub(crate) fn get_differences( pub(crate) fn test_theme_against<P: AsRef<Path>>( f: &P, origin: &FxHashMap<String, CssPath>, - diag: &Handler, + dcx: &DiagCtxt, ) -> (bool, Vec<String>) { let against = match fs::read_to_string(f) .map_err(|e| e.to_string()) @@ -244,7 +244,7 @@ pub(crate) fn test_theme_against<P: AsRef<Path>>( { Ok(c) => c, Err(e) => { - diag.struct_err(e).emit(); + dcx.struct_err(e).emit(); return (false, vec![]); } }; diff --git a/src/librustdoc/visit_ast.rs b/src/librustdoc/visit_ast.rs index 42ff1210f23..907ea6d309c 100644 --- a/src/librustdoc/visit_ast.rs +++ b/src/librustdoc/visit_ast.rs @@ -163,7 +163,7 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { .iter() .filter_map(|attr| { Cfg::parse(attr.meta_item()?) - .map_err(|e| self.cx.sess().diagnostic().span_err(e.span, e.msg)) + .map_err(|e| self.cx.sess().dcx().span_err(e.span, e.msg)) .ok() }) .collect::<Vec<_>>() diff --git a/src/llvm-project b/src/llvm-project -Subproject 2c4de6c2492d5530de3f19f41d8f88ba984c2fe +Subproject 606bc11367b475542bd6228163424ca43b4dbdb diff --git a/src/rustdoc-json-types/lib.rs b/src/rustdoc-json-types/lib.rs index 5d979521885..164f88faa31 100644 --- a/src/rustdoc-json-types/lib.rs +++ b/src/rustdoc-json-types/lib.rs @@ -8,7 +8,7 @@ use serde::{Deserialize, Serialize}; use std::path::PathBuf; /// rustdoc format-version. -pub const FORMAT_VERSION: u32 = 27; +pub const FORMAT_VERSION: u32 = 28; /// A `Crate` is the root of the emitted JSON blob. It contains all type/documentation information /// about the language items in the local crate, as well as info about external items to allow @@ -634,6 +634,7 @@ pub struct FnDecl { pub struct Trait { pub is_auto: bool, pub is_unsafe: bool, + pub is_object_safe: bool, pub items: Vec<Id>, pub generics: Generics, pub bounds: Vec<GenericBound>, diff --git a/src/stage0.json b/src/stage0.json index 5625e7219f8..1297eb1f8ec 100644 --- a/src/stage0.json +++ b/src/stage0.json @@ -18,425 +18,423 @@ "tool is executed." ], "compiler": { - "date": "2023-11-13", + "date": "2023-12-22", "version": "beta" }, "rustfmt": { - "date": "2023-11-13", + "date": "2023-12-22", "version": "nightly" }, "checksums_sha256": { - "dist/2023-11-13/cargo-beta-aarch64-apple-darwin.tar.gz": "747e7a7b31217abef7f5e6e451669cbada43ccaecf6e58df2dabb2b059256406", - "dist/2023-11-13/cargo-beta-aarch64-apple-darwin.tar.xz": "4ab42395708f3d2b495217c08f96a80ad5a6415edb226391e0f010927b206b88", - 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a/src/tools/clippy/clippy_lints/src/async_yields_async.rs b/src/tools/clippy/clippy_lints/src/async_yields_async.rs index 3e5a01c45df..28e6614f03f 100644 --- a/src/tools/clippy/clippy_lints/src/async_yields_async.rs +++ b/src/tools/clippy/clippy_lints/src/async_yields_async.rs @@ -2,7 +2,7 @@ use clippy_utils::diagnostics::span_lint_hir_and_then; use clippy_utils::source::snippet; use clippy_utils::ty::implements_trait; use rustc_errors::Applicability; -use rustc_hir::{Body, BodyId, CoroutineKind, CoroutineSource, ExprKind, QPath}; +use rustc_hir::{Body, BodyId, CoroutineKind, CoroutineSource, CoroutineDesugaring, ExprKind, QPath}; use rustc_lint::{LateContext, LateLintPass}; use rustc_session::declare_lint_pass; @@ -45,10 +45,9 @@ declare_lint_pass!(AsyncYieldsAsync => [ASYNC_YIELDS_ASYNC]); impl<'tcx> LateLintPass<'tcx> for AsyncYieldsAsync { fn check_body(&mut self, cx: &LateContext<'tcx>, body: &'tcx Body<'_>) { - use CoroutineSource::{Block, Closure}; // For functions, with explicitly defined types, don't warn. // XXXkhuey maybe we should? - if let Some(CoroutineKind::Async(Block | Closure)) = body.coroutine_kind { + if let Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Block | CoroutineSource::Closure)) = body.coroutine_kind { if let Some(future_trait_def_id) = cx.tcx.lang_items().future_trait() { let body_id = BodyId { hir_id: body.value.hir_id, diff --git a/src/tools/clippy/clippy_lints/src/await_holding_invalid.rs b/src/tools/clippy/clippy_lints/src/await_holding_invalid.rs index 9894a163961..dff6e884fa1 100644 --- a/src/tools/clippy/clippy_lints/src/await_holding_invalid.rs +++ b/src/tools/clippy/clippy_lints/src/await_holding_invalid.rs @@ -3,7 +3,7 @@ use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::{match_def_path, paths}; use rustc_data_structures::fx::FxHashMap; use rustc_hir::def_id::DefId; -use rustc_hir::{Body, CoroutineKind, CoroutineSource}; +use rustc_hir::{Body, CoroutineKind, CoroutineDesugaring}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::mir::CoroutineLayout; use rustc_session::impl_lint_pass; @@ -194,8 +194,7 @@ impl LateLintPass<'_> for AwaitHolding { } fn check_body(&mut self, cx: &LateContext<'_>, body: &'_ Body<'_>) { - use CoroutineSource::{Block, Closure, Fn}; - if let Some(CoroutineKind::Async(Block | Closure | Fn)) = body.coroutine_kind { + if let Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)) = body.coroutine_kind { let def_id = cx.tcx.hir().body_owner_def_id(body.id()); if let Some(coroutine_layout) = cx.tcx.mir_coroutine_witnesses(def_id) { self.check_interior_types(cx, coroutine_layout); diff --git a/src/tools/clippy/clippy_lints/src/doc/needless_doctest_main.rs b/src/tools/clippy/clippy_lints/src/doc/needless_doctest_main.rs index e019523e609..c639813a3f9 100644 --- a/src/tools/clippy/clippy_lints/src/doc/needless_doctest_main.rs +++ b/src/tools/clippy/clippy_lints/src/doc/needless_doctest_main.rs @@ -6,7 +6,7 @@ use clippy_utils::diagnostics::span_lint; use rustc_ast::{CoroutineKind, Fn, FnRetTy, Item, ItemKind}; use rustc_data_structures::sync::Lrc; use rustc_errors::emitter::EmitterWriter; -use rustc_errors::Handler; +use rustc_errors::DiagCtxt; use rustc_lint::LateContext; use rustc_parse::maybe_new_parser_from_source_str; use rustc_parse::parser::ForceCollect; @@ -45,10 +45,10 @@ pub fn check( let fallback_bundle = rustc_errors::fallback_fluent_bundle(rustc_driver::DEFAULT_LOCALE_RESOURCES.to_vec(), false); let emitter = EmitterWriter::new(Box::new(io::sink()), fallback_bundle); - let handler = Handler::with_emitter(Box::new(emitter)).disable_warnings(); - #[expect(clippy::arc_with_non_send_sync)] // `Lrc` is expected by with_span_handler + let dcx = DiagCtxt::with_emitter(Box::new(emitter)).disable_warnings(); + #[expect(clippy::arc_with_non_send_sync)] // `Lrc` is expected by with_dcx let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sess = ParseSess::with_span_handler(handler, sm); + let sess = ParseSess::with_dcx(dcx, sm); let mut parser = match maybe_new_parser_from_source_str(&sess, filename, code) { Ok(p) => p, diff --git a/src/tools/clippy/clippy_lints/src/item_name_repetitions.rs b/src/tools/clippy/clippy_lints/src/item_name_repetitions.rs index b6aacba2517..a9f1612ff05 100644 --- a/src/tools/clippy/clippy_lints/src/item_name_repetitions.rs +++ b/src/tools/clippy/clippy_lints/src/item_name_repetitions.rs @@ -436,7 +436,7 @@ impl LateLintPass<'_> for ItemNameRepetitions { { match item.kind { ItemKind::Enum(def, _) => check_variant(cx, self.enum_threshold, &def, item_name, item.span), - ItemKind::Struct(VariantData::Struct(fields, _), _) => { + ItemKind::Struct(VariantData::Struct { fields, .. }, _) => { check_fields(cx, self.struct_threshold, item, fields); }, _ => (), diff --git a/src/tools/clippy/clippy_lints/src/manual_async_fn.rs b/src/tools/clippy/clippy_lints/src/manual_async_fn.rs index eaaaea0be9f..8982ce5e196 100644 --- a/src/tools/clippy/clippy_lints/src/manual_async_fn.rs +++ b/src/tools/clippy/clippy_lints/src/manual_async_fn.rs @@ -3,7 +3,7 @@ use clippy_utils::source::{position_before_rarrow, snippet_block, snippet_opt}; use rustc_errors::Applicability; use rustc_hir::intravisit::FnKind; use rustc_hir::{ - Block, Body, Closure, CoroutineKind, CoroutineSource, Expr, ExprKind, FnDecl, FnRetTy, GenericArg, GenericBound, + Block, Body, Closure, CoroutineKind, CoroutineSource, CoroutineDesugaring, Expr, ExprKind, FnDecl, FnRetTy, GenericArg, GenericBound, ImplItem, Item, ItemKind, LifetimeName, Node, Term, TraitRef, Ty, TyKind, TypeBindingKind, }; use rustc_lint::{LateContext, LateLintPass}; @@ -178,7 +178,7 @@ fn desugared_async_block<'tcx>(cx: &LateContext<'tcx>, block: &'tcx Block<'tcx>) .. } = block_expr && let closure_body = cx.tcx.hir().body(body) - && closure_body.coroutine_kind == Some(CoroutineKind::Async(CoroutineSource::Block)) + && closure_body.coroutine_kind == Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Block)) { return Some(closure_body); } diff --git a/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs b/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs index 545b122930e..d2ac0ad8363 100644 --- a/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs +++ b/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs @@ -103,7 +103,7 @@ impl EarlyLintPass for ManualNonExhaustiveStruct { if let ast::ItemKind::Struct(variant_data, _) = &item.kind { let (fields, delimiter) = match variant_data { - ast::VariantData::Struct(fields, _) => (&**fields, '{'), + ast::VariantData::Struct { fields, .. } => (&**fields, '{'), ast::VariantData::Tuple(fields, _) => (&**fields, '('), ast::VariantData::Unit(_) => return, }; diff --git a/src/tools/clippy/clippy_lints/src/needless_continue.rs b/src/tools/clippy/clippy_lints/src/needless_continue.rs index 4b9ab50e4fd..ff72b5e69ef 100644 --- a/src/tools/clippy/clippy_lints/src/needless_continue.rs +++ b/src/tools/clippy/clippy_lints/src/needless_continue.rs @@ -220,7 +220,11 @@ where F: FnMut(&ast::Block, Option<&ast::Label>), { if let ast::ExprKind::While(_, loop_block, label) - | ast::ExprKind::ForLoop(_, _, loop_block, label) + | ast::ExprKind::ForLoop { + body: loop_block, + label, + .. + } | ast::ExprKind::Loop(loop_block, label, ..) = &expr.kind { func(loop_block, label.as_ref()); diff --git a/src/tools/clippy/clippy_lints/src/needless_question_mark.rs b/src/tools/clippy/clippy_lints/src/needless_question_mark.rs index a4d3aaf0de9..350707d3a13 100644 --- a/src/tools/clippy/clippy_lints/src/needless_question_mark.rs +++ b/src/tools/clippy/clippy_lints/src/needless_question_mark.rs @@ -3,7 +3,7 @@ use clippy_utils::path_res; use clippy_utils::source::snippet; use rustc_errors::Applicability; use rustc_hir::def::{DefKind, Res}; -use rustc_hir::{Block, Body, CoroutineKind, CoroutineSource, Expr, ExprKind, LangItem, MatchSource, QPath}; +use rustc_hir::{Block, Body, CoroutineKind, CoroutineSource, CoroutineDesugaring, Expr, ExprKind, LangItem, MatchSource, QPath}; use rustc_lint::{LateContext, LateLintPass}; use rustc_session::declare_lint_pass; @@ -86,7 +86,7 @@ impl LateLintPass<'_> for NeedlessQuestionMark { } fn check_body(&mut self, cx: &LateContext<'_>, body: &'_ Body<'_>) { - if let Some(CoroutineKind::Async(CoroutineSource::Fn)) = body.coroutine_kind { + if let Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Fn)) = body.coroutine_kind { if let ExprKind::Block( Block { expr: diff --git a/src/tools/clippy/clippy_lints/src/redundant_async_block.rs b/src/tools/clippy/clippy_lints/src/redundant_async_block.rs index 19d9d64b31e..4b3fe9c0bb5 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_async_block.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_async_block.rs @@ -5,7 +5,7 @@ use clippy_utils::peel_blocks; use clippy_utils::source::{snippet, walk_span_to_context}; use clippy_utils::visitors::for_each_expr; use rustc_errors::Applicability; -use rustc_hir::{Closure, CoroutineKind, CoroutineSource, Expr, ExprKind, MatchSource}; +use rustc_hir::{Closure, CoroutineKind, CoroutineSource, CoroutineDesugaring, Expr, ExprKind, MatchSource}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::lint::in_external_macro; use rustc_middle::ty::UpvarCapture; @@ -71,7 +71,7 @@ impl<'tcx> LateLintPass<'tcx> for RedundantAsyncBlock { fn desugar_async_block<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) -> Option<&'tcx Expr<'tcx>> { if let ExprKind::Closure(Closure { body, def_id, .. }) = expr.kind && let body = cx.tcx.hir().body(*body) - && matches!(body.coroutine_kind, Some(CoroutineKind::Async(CoroutineSource::Block))) + && matches!(body.coroutine_kind, Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Block))) { cx.typeck_results() .closure_min_captures diff --git a/src/tools/clippy/clippy_lints/src/redundant_closure_call.rs b/src/tools/clippy/clippy_lints/src/redundant_closure_call.rs index 8bac2e40e01..9312a9c89b7 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_closure_call.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_closure_call.rs @@ -5,7 +5,7 @@ use clippy_utils::sugg::Sugg; use rustc_errors::Applicability; use rustc_hir as hir; use rustc_hir::intravisit::{Visitor as HirVisitor, Visitor}; -use rustc_hir::{intravisit as hir_visit, CoroutineKind, CoroutineSource, Node}; +use rustc_hir::{intravisit as hir_visit, CoroutineKind, CoroutineSource, CoroutineDesugaring, Node}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::hir::nested_filter; use rustc_middle::lint::in_external_macro; @@ -67,7 +67,7 @@ fn is_async_closure(cx: &LateContext<'_>, body: &hir::Body<'_>) -> bool { if let hir::ExprKind::Closure(innermost_closure_generated_by_desugar) = body.value.kind && let desugared_inner_closure_body = cx.tcx.hir().body(innermost_closure_generated_by_desugar.body) // checks whether it is `async || whatever_expression` - && let Some(CoroutineKind::Async(CoroutineSource::Closure)) = desugared_inner_closure_body.coroutine_kind + && let Some(CoroutineKind::Desugared(CoroutineDesugaring::Async, CoroutineSource::Closure)) = desugared_inner_closure_body.coroutine_kind { true } else { diff --git a/src/tools/clippy/clippy_lints/src/redundant_else.rs b/src/tools/clippy/clippy_lints/src/redundant_else.rs index 001686c84f8..fb434fb7450 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_else.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_else.rs @@ -111,7 +111,7 @@ impl<'ast> Visitor<'ast> for BreakVisitor { ExprKind::If(_, ref then, Some(ref els)) => self.check_block(then) && self.check_expr(els), ExprKind::If(_, _, None) // ignore loops for simplicity - | ExprKind::While(..) | ExprKind::ForLoop(..) | ExprKind::Loop(..) => false, + | ExprKind::While(..) | ExprKind::ForLoop { .. } | ExprKind::Loop(..) => false, _ => { walk_expr(self, expr); return; diff --git a/src/tools/clippy/clippy_lints/src/suspicious_operation_groupings.rs b/src/tools/clippy/clippy_lints/src/suspicious_operation_groupings.rs index 8b9d9bade91..60e9d262e7e 100644 --- a/src/tools/clippy/clippy_lints/src/suspicious_operation_groupings.rs +++ b/src/tools/clippy/clippy_lints/src/suspicious_operation_groupings.rs @@ -554,7 +554,7 @@ fn ident_difference_expr_with_base_location( | (Closure(_), Closure(_)) | (Match(_, _), Match(_, _)) | (Loop(_, _, _), Loop(_, _, _)) - | (ForLoop(_, _, _, _), ForLoop(_, _, _, _)) + | (ForLoop { .. }, ForLoop { .. }) | (While(_, _, _), While(_, _, _)) | (If(_, _, _), If(_, _, _)) | (Let(_, _, _, _), Let(_, _, _, _)) diff --git a/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs b/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs index 65600009c1d..77adcdd0e6b 100644 --- a/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs +++ b/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs @@ -293,7 +293,7 @@ fn extend_with_struct_pat( qself1: &Option<P<ast::QSelf>>, path1: &ast::Path, fps1: &mut [ast::PatField], - rest1: bool, + rest1: ast::PatFieldsRest, start: usize, alternatives: &mut ThinVec<P<Pat>>, ) -> bool { diff --git a/src/tools/clippy/clippy_lints/src/unused_async.rs b/src/tools/clippy/clippy_lints/src/unused_async.rs index 9c8c44c0a16..f71fe4e1e92 100644 --- a/src/tools/clippy/clippy_lints/src/unused_async.rs +++ b/src/tools/clippy/clippy_lints/src/unused_async.rs @@ -86,7 +86,13 @@ impl<'a, 'tcx> Visitor<'tcx> for AsyncFnVisitor<'a, 'tcx> { } fn visit_body(&mut self, b: &'tcx Body<'tcx>) { - let is_async_block = matches!(b.coroutine_kind, Some(rustc_hir::CoroutineKind::Async(_))); + let is_async_block = matches!( + b.coroutine_kind, + Some(rustc_hir::CoroutineKind::Desugared( + rustc_hir::CoroutineDesugaring::Async, + _ + )) + ); if is_async_block { self.async_depth += 1; diff --git a/src/tools/clippy/clippy_utils/src/ast_utils.rs b/src/tools/clippy/clippy_utils/src/ast_utils.rs index e36f2fa87a7..7fe76b946a4 100644 --- a/src/tools/clippy/clippy_utils/src/ast_utils.rs +++ b/src/tools/clippy/clippy_utils/src/ast_utils.rs @@ -169,9 +169,22 @@ pub fn eq_expr(l: &Expr, r: &Expr) -> bool { (Let(lp, le, _, _), Let(rp, re, _, _)) => eq_pat(lp, rp) && eq_expr(le, re), (If(lc, lt, le), If(rc, rt, re)) => eq_expr(lc, rc) && eq_block(lt, rt) && eq_expr_opt(le, re), (While(lc, lt, ll), While(rc, rt, rl)) => eq_label(ll, rl) && eq_expr(lc, rc) && eq_block(lt, rt), - (ForLoop(lp, li, lt, ll), ForLoop(rp, ri, rt, rl)) => { - eq_label(ll, rl) && eq_pat(lp, rp) && eq_expr(li, ri) && eq_block(lt, rt) - }, + ( + ForLoop { + pat: lp, + iter: li, + body: lt, + label: ll, + kind: lk, + }, + ForLoop { + pat: rp, + iter: ri, + body: rt, + label: rl, + kind: rk, + }, + ) => eq_label(ll, rl) && eq_pat(lp, rp) && eq_expr(li, ri) && eq_block(lt, rt) && lk == rk, (Loop(lt, ll, _), Loop(rt, rl, _)) => eq_label(ll, rl) && eq_block(lt, rt), (Block(lb, ll), Block(rb, rl)) => eq_label(ll, rl) && eq_block(lb, rb), (TryBlock(l), TryBlock(r)) => eq_block(l, r), @@ -546,7 +559,9 @@ pub fn eq_variant_data(l: &VariantData, r: &VariantData) -> bool { use VariantData::*; match (l, r) { (Unit(_), Unit(_)) => true, - (Struct(l, _), Struct(r, _)) | (Tuple(l, _), Tuple(r, _)) => over(l, r, eq_struct_field), + (Struct { fields: l, .. }, Struct { fields: r, .. }) | (Tuple(l, _), Tuple(r, _)) => { + over(l, r, eq_struct_field) + }, _ => false, } } diff --git a/src/tools/clippy/clippy_utils/src/check_proc_macro.rs b/src/tools/clippy/clippy_utils/src/check_proc_macro.rs index 470d31fa3e1..d751aeaf902 100644 --- a/src/tools/clippy/clippy_utils/src/check_proc_macro.rs +++ b/src/tools/clippy/clippy_utils/src/check_proc_macro.rs @@ -200,7 +200,7 @@ fn item_search_pat(item: &Item<'_>) -> (Pat, Pat) { ItemKind::ForeignMod { .. } => (Pat::Str("extern"), Pat::Str("}")), ItemKind::TyAlias(..) | ItemKind::OpaqueTy(_) => (Pat::Str("type"), Pat::Str(";")), ItemKind::Enum(..) => (Pat::Str("enum"), Pat::Str("}")), - ItemKind::Struct(VariantData::Struct(..), _) => (Pat::Str("struct"), Pat::Str("}")), + ItemKind::Struct(VariantData::Struct { .. }, _) => (Pat::Str("struct"), Pat::Str("}")), ItemKind::Struct(..) => (Pat::Str("struct"), Pat::Str(";")), ItemKind::Union(..) => (Pat::Str("union"), Pat::Str("}")), ItemKind::Trait(_, Unsafety::Unsafe, ..) @@ -255,7 +255,7 @@ fn field_def_search_pat(def: &FieldDef<'_>) -> (Pat, Pat) { fn variant_search_pat(v: &Variant<'_>) -> (Pat, Pat) { match v.data { - VariantData::Struct(..) => (Pat::Sym(v.ident.name), Pat::Str("}")), + VariantData::Struct { .. } => (Pat::Sym(v.ident.name), Pat::Str("}")), VariantData::Tuple(..) => (Pat::Sym(v.ident.name), Pat::Str("")), VariantData::Unit(..) => (Pat::Sym(v.ident.name), Pat::Sym(v.ident.name)), } diff --git a/src/tools/clippy/clippy_utils/src/sugg.rs b/src/tools/clippy/clippy_utils/src/sugg.rs index 9b2bc8df1f3..c86362c427c 100644 --- a/src/tools/clippy/clippy_utils/src/sugg.rs +++ b/src/tools/clippy/clippy_utils/src/sugg.rs @@ -197,7 +197,7 @@ impl<'a> Sugg<'a> { | ast::ExprKind::Continue(..) | ast::ExprKind::Yield(..) | ast::ExprKind::Field(..) - | ast::ExprKind::ForLoop(..) + | ast::ExprKind::ForLoop { .. } | ast::ExprKind::Index(..) | ast::ExprKind::InlineAsm(..) | ast::ExprKind::OffsetOf(..) diff --git a/src/tools/clippy/src/driver.rs b/src/tools/clippy/src/driver.rs index 49f0cad08e0..b944a299256 100644 --- a/src/tools/clippy/src/driver.rs +++ b/src/tools/clippy/src/driver.rs @@ -18,7 +18,7 @@ extern crate rustc_span; use rustc_interface::interface; use rustc_session::config::ErrorOutputType; use rustc_session::parse::ParseSess; -use rustc_session::EarlyErrorHandler; +use rustc_session::EarlyDiagCtxt; use rustc_span::symbol::Symbol; use std::env; @@ -174,9 +174,9 @@ const BUG_REPORT_URL: &str = "https://github.com/rust-lang/rust-clippy/issues/ne #[allow(clippy::too_many_lines)] #[allow(clippy::ignored_unit_patterns)] pub fn main() { - let handler = EarlyErrorHandler::new(ErrorOutputType::default()); + let early_dcx = EarlyDiagCtxt::new(ErrorOutputType::default()); - rustc_driver::init_rustc_env_logger(&handler); + rustc_driver::init_rustc_env_logger(&early_dcx); let using_internal_features = rustc_driver::install_ice_hook(BUG_REPORT_URL, |handler| { // FIXME: this macro calls unwrap internally but is called in a panicking context! It's not diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs index 5d53a4d28f2..ca80328f3ac 100644 --- a/src/tools/compiletest/src/runtest.rs +++ b/src/tools/compiletest/src/runtest.rs @@ -2445,6 +2445,7 @@ impl<'test> TestCx<'test> { "-Copt-level=1", &zdump_arg, "-Zvalidate-mir", + "-Zlint-mir", "-Zdump-mir-exclude-pass-number", ]); if let Some(pass) = &self.props.mir_unit_test { diff --git a/src/tools/error_index_generator/main.rs b/src/tools/error_index_generator/main.rs index 3a23ff7fe6a..865d7172cd3 100644 --- a/src/tools/error_index_generator/main.rs +++ b/src/tools/error_index_generator/main.rs @@ -173,7 +173,7 @@ fn parse_args() -> (OutputFormat, PathBuf) { fn main() { let handler = - rustc_session::EarlyErrorHandler::new(rustc_session::config::ErrorOutputType::default()); + rustc_session::EarlyDiagCtxt::new(rustc_session::config::ErrorOutputType::default()); rustc_driver::init_logger(&handler, rustc_log::LoggerConfig::from_env("RUST_LOG")); let (format, dst) = parse_args(); let result = main_with_result(format, &dst); diff --git a/src/tools/miri/src/bin/miri.rs b/src/tools/miri/src/bin/miri.rs index 8390309889d..f83847d13f1 100644 --- a/src/tools/miri/src/bin/miri.rs +++ b/src/tools/miri/src/bin/miri.rs @@ -35,7 +35,7 @@ use rustc_middle::{ }; use rustc_session::config::{CrateType, ErrorOutputType, OptLevel}; use rustc_session::search_paths::PathKind; -use rustc_session::{CtfeBacktrace, EarlyErrorHandler}; +use rustc_session::{CtfeBacktrace, EarlyDiagCtxt}; use miri::{BacktraceStyle, BorrowTrackerMethod, ProvenanceMode, RetagFields}; @@ -69,8 +69,8 @@ impl rustc_driver::Callbacks for MiriCompilerCalls { tcx.sess.fatal("miri cannot be run on programs that fail compilation"); } - let handler = EarlyErrorHandler::new(tcx.sess.opts.error_format); - init_late_loggers(&handler, tcx); + let early_dcx = EarlyDiagCtxt::new(tcx.sess.opts.error_format); + init_late_loggers(&early_dcx, tcx); if !tcx.crate_types().contains(&CrateType::Executable) { tcx.sess.fatal("miri only makes sense on bin crates"); } @@ -215,7 +215,7 @@ fn rustc_logger_config() -> rustc_log::LoggerConfig { cfg } -fn init_early_loggers(handler: &EarlyErrorHandler) { +fn init_early_loggers(early_dcx: &EarlyDiagCtxt) { // Note that our `extern crate log` is *not* the same as rustc's; as a result, we have to // initialize them both, and we always initialize `miri`'s first. let env = env_logger::Env::new().filter("MIRI_LOG").write_style("MIRI_LOG_STYLE"); @@ -224,15 +224,15 @@ fn init_early_loggers(handler: &EarlyErrorHandler) { // If it is not set, we avoid initializing now so that we can initialize later with our custom // settings, and *not* log anything for what happens before `miri` gets started. if env::var_os("RUSTC_LOG").is_some() { - rustc_driver::init_logger(handler, rustc_logger_config()); + rustc_driver::init_logger(early_dcx, rustc_logger_config()); } } -fn init_late_loggers(handler: &EarlyErrorHandler, tcx: TyCtxt<'_>) { +fn init_late_loggers(early_dcx: &EarlyDiagCtxt, tcx: TyCtxt<'_>) { // If `RUSTC_LOG` is not set, then `init_early_loggers` did not call // `rustc_driver::init_logger`, so we have to do this now. if env::var_os("RUSTC_LOG").is_none() { - rustc_driver::init_logger(handler, rustc_logger_config()); + rustc_driver::init_logger(early_dcx, rustc_logger_config()); } // If `MIRI_BACKTRACE` is set and `RUSTC_CTFE_BACKTRACE` is not, set `RUSTC_CTFE_BACKTRACE`. @@ -300,7 +300,7 @@ fn parse_comma_list<T: FromStr>(input: &str) -> Result<Vec<T>, T::Err> { } fn main() { - let handler = EarlyErrorHandler::new(ErrorOutputType::default()); + let early_dcx = EarlyDiagCtxt::new(ErrorOutputType::default()); // Snapshot a copy of the environment before `rustc` starts messing with it. // (`install_ice_hook` might change `RUST_BACKTRACE`.) @@ -311,7 +311,7 @@ fn main() { // Earliest rustc setup. let using_internal_features = rustc_driver::install_ice_hook(rustc_driver::DEFAULT_BUG_REPORT_URL, |_| ()); - rustc_driver::init_rustc_env_logger(&handler); + rustc_driver::init_rustc_env_logger(&early_dcx); let target_crate = if crate_kind == "target" { true @@ -335,7 +335,7 @@ fn main() { rustc_driver::install_ice_hook("https://github.com/rust-lang/miri/issues/new", |_| ()); // Init loggers the Miri way. - init_early_loggers(&handler); + init_early_loggers(&early_dcx); // Parse our arguments and split them across `rustc` and `miri`. let mut miri_config = miri::MiriConfig::default(); diff --git a/src/tools/miri/src/diagnostics.rs b/src/tools/miri/src/diagnostics.rs index e0f59144975..4c284ff81ee 100644 --- a/src/tools/miri/src/diagnostics.rs +++ b/src/tools/miri/src/diagnostics.rs @@ -3,7 +3,7 @@ use std::num::NonZeroU64; use log::trace; -use rustc_errors::DiagnosticMessage; +use rustc_errors::{DiagnosticBuilder, DiagnosticMessage, Level}; use rustc_span::{SpanData, Symbol, DUMMY_SP}; use rustc_target::abi::{Align, Size}; @@ -384,7 +384,7 @@ pub fn report_error<'tcx, 'mir>( // Include a note like `std` does when we omit frames from a backtrace if was_pruned { - ecx.tcx.sess.diagnostic().note( + ecx.tcx.sess.dcx().note( "some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace", ); } @@ -431,7 +431,7 @@ pub fn report_leaks<'mir, 'tcx>( ); } if any_pruned { - ecx.tcx.sess.diagnostic().note( + ecx.tcx.sess.dcx().note( "some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace", ); } @@ -453,11 +453,13 @@ pub fn report_msg<'tcx>( ) { let span = stacktrace.first().map_or(DUMMY_SP, |fi| fi.span); let sess = machine.tcx.sess; - let mut err = match diag_level { - DiagLevel::Error => sess.struct_span_err(span, title).forget_guarantee(), - DiagLevel::Warning => sess.struct_span_warn(span, title), - DiagLevel::Note => sess.diagnostic().struct_span_note(span, title), + let level = match diag_level { + DiagLevel::Error => Level::Error { lint: false }, + DiagLevel::Warning => Level::Warning(None), + DiagLevel::Note => Level::Note, }; + let mut err = DiagnosticBuilder::<()>::new(sess.dcx(), level, title); + err.set_span(span); // Show main message. if span != DUMMY_SP { diff --git a/src/tools/miri/src/lib.rs b/src/tools/miri/src/lib.rs index 1eb40ab826c..4e9febf0205 100644 --- a/src/tools/miri/src/lib.rs +++ b/src/tools/miri/src/lib.rs @@ -11,7 +11,6 @@ #![feature(round_ties_even)] #![feature(let_chains)] #![feature(lint_reasons)] -#![cfg_attr(bootstrap, feature(trait_upcasting))] // Configure clippy and other lints #![allow( clippy::collapsible_else_if, diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.rs b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.rs new file mode 100644 index 00000000000..2cf4e044777 --- /dev/null +++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.rs @@ -0,0 +1,16 @@ +use std::num::*; + +#[repr(C)] +struct S1(NonZeroI32); + +#[repr(C)] +struct S2(i32); + +fn callee(_s: S2) {} + +fn main() { + let fnptr: fn(S2) = callee; + let fnptr: fn(S1) = unsafe { std::mem::transmute(fnptr) }; + fnptr(S1(NonZeroI32::new(1).unwrap())); + //~^ ERROR: calling a function with argument of type S2 passing data of type S1 +} diff --git a/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.stderr b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.stderr new file mode 100644 index 00000000000..6d42bea9da9 --- /dev/null +++ b/src/tools/miri/tests/fail/function_pointers/abi_mismatch_repr_C.stderr @@ -0,0 +1,17 @@ +error: Undefined Behavior: calling a function with argument of type S2 passing data of type S1 + --> $DIR/abi_mismatch_repr_C.rs:LL:CC + | +LL | fnptr(S1(NonZeroI32::new(1).unwrap())); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ calling a function with argument of type S2 passing data of type S1 + | + = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior + = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information + = help: this means these two types are not *guaranteed* to be ABI-compatible across all targets + = help: if you think this code should be accepted anyway, please report an issue + = note: BACKTRACE: + = note: inside `main` at $DIR/abi_mismatch_repr_C.rs:LL:CC + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error + diff --git a/src/tools/rust-analyzer/.github/workflows/metrics.yaml b/src/tools/rust-analyzer/.github/workflows/metrics.yaml index 741e559953f..e6a9917a0bf 100644 --- a/src/tools/rust-analyzer/.github/workflows/metrics.yaml +++ b/src/tools/rust-analyzer/.github/workflows/metrics.yaml @@ -67,7 +67,7 @@ jobs: other_metrics: strategy: matrix: - names: [self, ripgrep-13.0.0, webrender-2022, diesel-1.4.8, hyper-0.14.18] + names: [self, rustc_tests, ripgrep-13.0.0, webrender-2022, diesel-1.4.8, hyper-0.14.18] runs-on: ubuntu-latest needs: [setup_cargo, build_metrics] @@ -118,6 +118,11 @@ jobs: with: name: self-${{ github.sha }} + - name: Download rustc_tests metrics + uses: actions/download-artifact@v3 + with: + name: rustc_tests-${{ github.sha }} + - name: Download ripgrep-13.0.0 metrics uses: actions/download-artifact@v3 with: @@ -146,7 +151,7 @@ jobs: chmod 700 ~/.ssh git clone --depth 1 git@github.com:rust-analyzer/metrics.git - jq -s ".[0] * .[1] * .[2] * .[3] * .[4] * .[5]" build.json self.json ripgrep-13.0.0.json webrender-2022.json diesel-1.4.8.json hyper-0.14.18.json -c >> metrics/metrics.json + jq -s ".[0] * .[1] * .[2] * .[3] * .[4] * .[5] * .[6]" build.json self.json rustc_tests.json ripgrep-13.0.0.json webrender-2022.json diesel-1.4.8.json hyper-0.14.18.json -c >> metrics/metrics.json cd metrics git add . git -c user.name=Bot -c user.email=dummy@example.com commit --message 📈 diff --git a/src/tools/rust-analyzer/Cargo.lock b/src/tools/rust-analyzer/Cargo.lock index 46efbdd93c9..227d1db0ec7 100644 --- a/src/tools/rust-analyzer/Cargo.lock +++ b/src/tools/rust-analyzer/Cargo.lock @@ -684,7 +684,7 @@ dependencies = [ "indexmap", "itertools", "limit", - "line-index 0.1.0-pre.1", + "line-index 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)", "memchr", "nohash-hasher", "once_cell", @@ -881,9 +881,7 @@ version = "0.0.0" [[package]] name = "line-index" -version = "0.1.0-pre.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2cad96769710c1745e11d4f940a8ff36000ade4bbada4285b001cb8aa2f745ce" +version = "0.1.1" dependencies = [ "nohash-hasher", "text-size", @@ -891,7 +889,9 @@ dependencies = [ [[package]] name = "line-index" -version = "0.1.0" +version = "0.1.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "67d61795376ae2683928c218fda7d7d7db136fd38c06b7552904667f0d55580a" dependencies = [ "nohash-hasher", "text-size", @@ -1545,6 +1545,7 @@ dependencies = [ "triomphe", "vfs", "vfs-notify", + "walkdir", "winapi", "xflags", "xshell", diff --git a/src/tools/rust-analyzer/Cargo.toml b/src/tools/rust-analyzer/Cargo.toml index f3f01aab8ee..1213979c390 100644 --- a/src/tools/rust-analyzer/Cargo.toml +++ b/src/tools/rust-analyzer/Cargo.toml @@ -85,7 +85,7 @@ rustc-dependencies = { path = "./crates/rustc-dependencies", version = "0.0.0" } proc-macro-test = { path = "./crates/proc-macro-test" } # In-tree crates that are published separately and follow semver. See lib/README.md -line-index = { version = "0.1.0-pre.1" } +line-index = { version = "0.1.1" } la-arena = { version = "0.3.1" } lsp-server = { version = "0.7.4" } diff --git a/src/tools/rust-analyzer/crates/base-db/src/span.rs b/src/tools/rust-analyzer/crates/base-db/src/span.rs index 3464f4cb6d1..d8990eb7cae 100644 --- a/src/tools/rust-analyzer/crates/base-db/src/span.rs +++ b/src/tools/rust-analyzer/crates/base-db/src/span.rs @@ -151,21 +151,26 @@ impl fmt::Debug for HirFileIdRepr { impl From<FileId> for HirFileId { fn from(id: FileId) -> Self { - assert!(id.index() < Self::MAX_FILE_ID); + _ = Self::ASSERT_MAX_FILE_ID_IS_SAME; + assert!(id.index() <= Self::MAX_HIR_FILE_ID, "FileId index {} is too large", id.index()); HirFileId(id.index()) } } impl From<MacroFileId> for HirFileId { fn from(MacroFileId { macro_call_id: MacroCallId(id) }: MacroFileId) -> Self { + _ = Self::ASSERT_MAX_FILE_ID_IS_SAME; let id = id.as_u32(); - assert!(id < Self::MAX_FILE_ID); + assert!(id <= Self::MAX_HIR_FILE_ID, "MacroCallId index {} is too large", id); HirFileId(id | Self::MACRO_FILE_TAG_MASK) } } impl HirFileId { - const MAX_FILE_ID: u32 = u32::MAX ^ Self::MACRO_FILE_TAG_MASK; + const ASSERT_MAX_FILE_ID_IS_SAME: () = + [()][(Self::MAX_HIR_FILE_ID != FileId::MAX_FILE_ID) as usize]; + + const MAX_HIR_FILE_ID: u32 = u32::MAX ^ Self::MACRO_FILE_TAG_MASK; const MACRO_FILE_TAG_MASK: u32 = 1 << 31; #[inline] diff --git a/src/tools/rust-analyzer/crates/hir-def/src/attr/builtin.rs b/src/tools/rust-analyzer/crates/hir-def/src/attr/builtin.rs index 15dceeb8af2..48a596f7f53 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/attr/builtin.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/attr/builtin.rs @@ -2,7 +2,7 @@ //! //! The actual definitions were copied from rustc's `compiler/rustc_feature/src/builtin_attrs.rs`. //! -//! It was last synchronized with upstream commit e29821ff85a2a3000d226f99f62f89464028d5d6. +//! It was last synchronized with upstream commit c3def263a44e07e09ae6d57abfc8650227fb4972. //! //! The macros were adjusted to only expand to the attribute name, since that is all we need to do //! name resolution, and `BUILTIN_ATTRIBUTES` is almost entirely unchanged from the original, to @@ -240,7 +240,7 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[ template!(List: "address, kcfi, memory, thread"), DuplicatesOk, experimental!(no_sanitize) ), - gated!(coverage, Normal, template!(Word, List: "on|off"), WarnFollowing, experimental!(coverage)), + gated!(coverage, Normal, template!(Word, List: "on|off"), WarnFollowing, coverage_attribute, experimental!(coverage)), ungated!( doc, Normal, template!(List: "hidden|inline|...", NameValueStr: "string"), DuplicatesOk @@ -364,7 +364,6 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[ allow_internal_unsafe, Normal, template!(Word), WarnFollowing, "allow_internal_unsafe side-steps the unsafe_code lint", ), - ungated!(rustc_safe_intrinsic, Normal, template!(Word), DuplicatesOk), rustc_attr!(rustc_allowed_through_unstable_modules, Normal, template!(Word), WarnFollowing, "rustc_allowed_through_unstable_modules special cases accidental stabilizations of stable items \ through unstable paths"), @@ -453,6 +452,12 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[ ErrorFollowing, INTERNAL_UNSTABLE ), + rustc_attr!( + rustc_confusables, Normal, + template!(List: r#""name1", "name2", ..."#), + ErrorFollowing, + INTERNAL_UNSTABLE, + ), // Enumerates "identity-like" conversion methods to suggest on type mismatch. rustc_attr!( rustc_conversion_suggestion, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE @@ -488,6 +493,10 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[ rustc_attr!( rustc_do_not_const_check, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE ), + // Ensure the argument to this function is &&str during const-check. + rustc_attr!( + rustc_const_panic_str, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE + ), // ========================================================================== // Internal attributes, Layout related: @@ -521,6 +530,10 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[ "#[rustc_pass_by_value] is used to mark types that must be passed by value instead of reference." ), rustc_attr!( + rustc_never_returns_null_ptr, Normal, template!(Word), ErrorFollowing, + "#[rustc_never_returns_null_ptr] is used to mark functions returning non-null pointers." + ), + rustc_attr!( rustc_coherence_is_core, AttributeType::CrateLevel, template!(Word), ErrorFollowing, @only_local: true, "#![rustc_coherence_is_core] allows inherent methods on builtin types, only intended to be used in `core`." ), @@ -533,7 +546,11 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[ "#[rustc_allow_incoherent_impl] has to be added to all impl items of an incoherent inherent impl." ), rustc_attr!( - rustc_deny_explicit_impl, AttributeType::Normal, template!(Word), ErrorFollowing, @only_local: false, + rustc_deny_explicit_impl, + AttributeType::Normal, + template!(List: "implement_via_object = (true|false)"), + ErrorFollowing, + @only_local: true, "#[rustc_deny_explicit_impl] enforces that a trait can have no user-provided impls" ), rustc_attr!( @@ -614,6 +631,10 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[ rustc_doc_primitive, Normal, template!(NameValueStr: "primitive name"), ErrorFollowing, r#"`rustc_doc_primitive` is a rustc internal attribute"#, ), + rustc_attr!( + rustc_safe_intrinsic, Normal, template!(Word), WarnFollowing, + "the `#[rustc_safe_intrinsic]` attribute is used internally to mark intrinsics as safe" + ), // ========================================================================== // Internal attributes, Testing: @@ -625,13 +646,16 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[ rustc_attr!(TEST, rustc_insignificant_dtor, Normal, template!(Word), WarnFollowing), rustc_attr!(TEST, rustc_strict_coherence, Normal, template!(Word), WarnFollowing), rustc_attr!(TEST, rustc_variance, Normal, template!(Word), WarnFollowing), + rustc_attr!(TEST, rustc_variance_of_opaques, Normal, template!(Word), WarnFollowing), + rustc_attr!(TEST, rustc_hidden_type_of_opaques, Normal, template!(Word), WarnFollowing), rustc_attr!(TEST, rustc_layout, Normal, template!(List: "field1, field2, ..."), WarnFollowing), + rustc_attr!(TEST, rustc_abi, Normal, template!(List: "field1, field2, ..."), WarnFollowing), rustc_attr!(TEST, rustc_regions, Normal, template!(Word), WarnFollowing), rustc_attr!( TEST, rustc_error, Normal, template!(Word, List: "span_delayed_bug_from_inside_query"), WarnFollowingWordOnly ), - rustc_attr!(TEST, rustc_dump_user_substs, Normal, template!(Word), WarnFollowing), + rustc_attr!(TEST, rustc_dump_user_args, Normal, template!(Word), WarnFollowing), rustc_attr!(TEST, rustc_evaluate_where_clauses, Normal, template!(Word), WarnFollowing), rustc_attr!( TEST, rustc_if_this_changed, Normal, template!(Word, List: "DepNode"), DuplicatesOk diff --git a/src/tools/rust-analyzer/crates/hir-def/src/child_by_source.rs b/src/tools/rust-analyzer/crates/hir-def/src/child_by_source.rs index 4cfd318a433..c82d2347de5 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/child_by_source.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/child_by_source.rs @@ -5,8 +5,7 @@ //! node for a *child*, and get its hir. use either::Either; -use hir_expand::HirFileId; -use syntax::ast::HasDocComments; +use hir_expand::{attrs::collect_attrs, HirFileId}; use crate::{ db::DefDatabase, @@ -118,8 +117,8 @@ impl ChildBySource for ItemScope { |(ast_id, calls)| { let adt = ast_id.to_node(db.upcast()); calls.for_each(|(attr_id, call_id, calls)| { - if let Some(Either::Left(attr)) = - adt.doc_comments_and_attrs().nth(attr_id.ast_index()) + if let Some((_, Either::Left(attr))) = + collect_attrs(&adt).nth(attr_id.ast_index()) { res[keys::DERIVE_MACRO_CALL].insert(attr, (attr_id, call_id, calls.into())); } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/generics.rs b/src/tools/rust-analyzer/crates/hir-def/src/generics.rs index 0d95d916ff9..f5324f052e5 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/generics.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/generics.rs @@ -222,11 +222,10 @@ impl GenericParams { let module = loc.container.module(db); let func_data = db.function_data(id); - // Don't create an `Expander` nor call `loc.source(db)` if not needed since this - // causes a reparse after the `ItemTree` has been created. - let mut expander = Lazy::new(|| { - (module.def_map(db), Expander::new(db, loc.source(db).file_id, module)) - }); + // Don't create an `Expander` if not needed since this + // could cause a reparse after the `ItemTree` has been created due to the spanmap. + let mut expander = + Lazy::new(|| (module.def_map(db), Expander::new(db, loc.id.file_id(), module))); for param in func_data.params.iter() { generic_params.fill_implicit_impl_trait_args(db, &mut expander, param); } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs b/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs index d589fbe347a..26d333f9a0b 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs @@ -9,6 +9,7 @@ use indexmap::IndexMap; use itertools::Itertools; use rustc_hash::{FxHashSet, FxHasher}; use smallvec::SmallVec; +use stdx::format_to; use triomphe::Arc; use crate::{ @@ -53,13 +54,25 @@ pub struct ImportMap { fst: fst::Map<Vec<u8>>, } -#[derive(Copy, Clone, PartialEq, Eq)] +#[derive(Copy, Clone, Debug, PartialEq, Eq, Ord, PartialOrd)] enum IsTraitAssocItem { Yes, No, } impl ImportMap { + pub fn dump(&self, db: &dyn DefDatabase) -> String { + let mut out = String::new(); + for (k, v) in self.map.iter() { + format_to!(out, "{:?} ({:?}) -> ", k, v.1); + for v in &v.0 { + format_to!(out, "{}:{:?}, ", v.name.display(db.upcast()), v.container); + } + format_to!(out, "\n"); + } + out + } + pub(crate) fn import_map_query(db: &dyn DefDatabase, krate: CrateId) -> Arc<Self> { let _p = profile::span("import_map_query"); @@ -68,26 +81,31 @@ impl ImportMap { let mut importables: Vec<_> = map .iter() // We've only collected items, whose name cannot be tuple field. - .flat_map(|(&item, (info, _))| { - info.iter() - .map(move |info| (item, info.name.as_str().unwrap().to_ascii_lowercase())) + .flat_map(|(&item, (info, is_assoc))| { + info.iter().map(move |info| { + (item, *is_assoc, info.name.as_str().unwrap().to_ascii_lowercase()) + }) }) .collect(); - importables.sort_by(|(_, lhs_name), (_, rhs_name)| lhs_name.cmp(rhs_name)); + importables.sort_by(|(_, l_is_assoc, lhs_name), (_, r_is_assoc, rhs_name)| { + lhs_name.cmp(rhs_name).then_with(|| l_is_assoc.cmp(r_is_assoc)) + }); importables.dedup(); // Build the FST, taking care not to insert duplicate values. let mut builder = fst::MapBuilder::memory(); - let iter = - importables.iter().enumerate().dedup_by(|(_, (_, lhs)), (_, (_, rhs))| lhs == rhs); - for (start_idx, (_, name)) in iter { + let iter = importables + .iter() + .enumerate() + .dedup_by(|(_, (_, _, lhs)), (_, (_, _, rhs))| lhs == rhs); + for (start_idx, (_, _, name)) in iter { let _ = builder.insert(name, start_idx as u64); } Arc::new(ImportMap { map, fst: builder.into_map(), - importables: importables.into_iter().map(|(item, _)| item).collect(), + importables: importables.into_iter().map(|(item, _, _)| item).collect(), }) } @@ -328,20 +346,20 @@ impl Query { } /// Checks whether the import map entry matches the query. - fn import_matches( - &self, - db: &dyn DefDatabase, - import: &ImportInfo, - enforce_lowercase: bool, - ) -> bool { + fn import_matches(&self, import: &ImportInfo, enforce_lowercase: bool) -> bool { let _p = profile::span("import_map::Query::import_matches"); // FIXME: Can we get rid of the alloc here? - let mut input = import.name.display(db.upcast()).to_string(); + let input = import.name.to_smol_str(); + let mut _s_slot; let case_insensitive = enforce_lowercase || !self.case_sensitive; - if case_insensitive { - input.make_ascii_lowercase(); - } + let input = if case_insensitive { + _s_slot = String::from(input); + _s_slot.make_ascii_lowercase(); + &*_s_slot + } else { + &*input + }; let query_string = if case_insensitive { &self.lowercased } else { &self.query }; @@ -351,7 +369,7 @@ impl Query { SearchMode::Fuzzy => { let mut input_chars = input.chars(); for query_char in query_string.chars() { - if input_chars.find(|&it| it == query_char).is_none() { + if !input_chars.any(|it| it == query_char) { return false; } } @@ -372,6 +390,7 @@ pub fn search_dependencies( let _p = profile::span("search_dependencies").detail(|| format!("{query:?}")); let graph = db.crate_graph(); + let import_maps: Vec<_> = graph[krate].dependencies.iter().map(|dep| db.import_map(dep.crate_id)).collect(); @@ -386,22 +405,23 @@ pub fn search_dependencies( let mut res = FxHashSet::default(); let mut common_importable_data_scratch = vec![]; + // FIXME: Improve this, its rather unreadable and does duplicate amount of work while let Some((_, indexed_values)) = stream.next() { for &IndexedValue { index, value } in indexed_values { let import_map = &import_maps[index]; let importables @ [importable, ..] = &import_map.importables[value as usize..] else { continue; }; - let &(ref importable_data, is_trait_assoc_item) = &import_map.map[importable]; if !query.matches_assoc_mode(is_trait_assoc_item) { continue; } + // Fetch all the known names of this importable item (to handle import aliases/renames) common_importable_data_scratch.extend( importable_data .iter() - .filter(|&info| query.import_matches(db, info, true)) + .filter(|&info| query.import_matches(info, true)) // Name shared by the importable items in this group. .map(|info| info.name.to_smol_str()), ); @@ -415,6 +435,7 @@ pub fn search_dependencies( common_importable_data_scratch.drain(..).flat_map(|common_importable_name| { // Add the items from this name group. Those are all subsequent items in // `importables` whose name match `common_importable_name`. + importables .iter() .copied() @@ -430,11 +451,8 @@ pub fn search_dependencies( .filter(move |item| { !query.case_sensitive || { // we've already checked the common importables name case-insensitively - let &(ref import_infos, assoc_mode) = &import_map.map[item]; - query.matches_assoc_mode(assoc_mode) - && import_infos - .iter() - .any(|info| query.import_matches(db, info, false)) + let &(ref import_infos, _) = &import_map.map[item]; + import_infos.iter().any(|info| query.import_matches(info, false)) } }) }); diff --git a/src/tools/rust-analyzer/crates/hir-def/src/item_tree.rs b/src/tools/rust-analyzer/crates/hir-def/src/item_tree.rs index 16144394e3b..3d2cddffa3b 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/item_tree.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/item_tree.rs @@ -106,11 +106,6 @@ impl ItemTree { pub(crate) fn file_item_tree_query(db: &dyn DefDatabase, file_id: HirFileId) -> Arc<ItemTree> { let _p = profile::span("file_item_tree_query").detail(|| format!("{file_id:?}")); let syntax = db.parse_or_expand(file_id); - if never!(syntax.kind() == SyntaxKind::ERROR, "{:?} from {:?} {}", file_id, syntax, syntax) - { - // FIXME: not 100% sure why these crop up, but return an empty tree to avoid a panic - return Default::default(); - } let ctx = lower::Ctx::new(db, file_id); let mut top_attrs = None; @@ -129,6 +124,9 @@ impl ItemTree { ctx.lower_macro_stmts(stmts) }, _ => { + if never!(syntax.kind() == SyntaxKind::ERROR, "{:?} from {:?} {}", file_id, syntax, syntax) { + return Default::default(); + } panic!("cannot create item tree for file {file_id:?} from {syntax:?} {syntax}"); }, } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/lib.rs b/src/tools/rust-analyzer/crates/hir-def/src/lib.rs index 7cf13a202e0..b5333861cc8 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/lib.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/lib.rs @@ -569,6 +569,8 @@ pub struct ConstBlockLoc { pub root: hir::ExprId, } +/// Something that holds types, required for the current const arg lowering implementation as they +/// need to be able to query where they are defined. #[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)] pub enum TypeOwnerId { FunctionId(FunctionId), @@ -581,9 +583,6 @@ pub enum TypeOwnerId { TypeAliasId(TypeAliasId), ImplId(ImplId), EnumVariantId(EnumVariantId), - // FIXME(const-generic-body): ModuleId should not be a type owner. This needs to be fixed to make `TypeOwnerId` actually - // useful for assigning ids to in type consts. - ModuleId(ModuleId), } impl TypeOwnerId { @@ -597,9 +596,7 @@ impl TypeOwnerId { TypeOwnerId::TypeAliasId(it) => GenericDefId::TypeAliasId(it), TypeOwnerId::ImplId(it) => GenericDefId::ImplId(it), TypeOwnerId::EnumVariantId(it) => GenericDefId::EnumVariantId(it), - TypeOwnerId::InTypeConstId(_) | TypeOwnerId::ModuleId(_) | TypeOwnerId::StaticId(_) => { - return None - } + TypeOwnerId::InTypeConstId(_) | TypeOwnerId::StaticId(_) => return None, }) } } @@ -614,8 +611,7 @@ impl_from!( TraitAliasId, TypeAliasId, ImplId, - EnumVariantId, - ModuleId + EnumVariantId for TypeOwnerId ); @@ -713,12 +709,15 @@ pub struct InTypeConstLoc { pub id: AstId<ast::ConstArg>, /// The thing this const arg appears in pub owner: TypeOwnerId, - pub thing: Box<dyn OpaqueInternableThing>, + // FIXME(const-generic-body): The expected type should not be + pub expected_ty: Box<dyn OpaqueInternableThing>, } impl PartialEq for InTypeConstLoc { fn eq(&self, other: &Self) -> bool { - self.id == other.id && self.owner == other.owner && &*self.thing == &*other.thing + self.id == other.id + && self.owner == other.owner + && &*self.expected_ty == &*other.expected_ty } } @@ -1041,7 +1040,6 @@ impl HasModule for TypeOwnerId { TypeOwnerId::TypeAliasId(it) => it.lookup(db).module(db), TypeOwnerId::ImplId(it) => it.lookup(db).container, TypeOwnerId::EnumVariantId(it) => it.parent.lookup(db).container, - TypeOwnerId::ModuleId(it) => *it, } } } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs index 9010050ee67..71ba4972174 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs @@ -13,37 +13,97 @@ fn test_vec() { check( r#" macro_rules! vec { - ($($item:expr),*) => {{ - let mut v = Vec::new(); - $( v.push($item); )* - v - }}; + () => ( + $crate::__rust_force_expr!($crate::vec::Vec::new()) + ); + ($elem:expr; $n:expr) => ( + $crate::__rust_force_expr!($crate::vec::from_elem($elem, $n)) + ); + ($($x:expr),+ $(,)?) => ( + $crate::__rust_force_expr!(<[_]>::into_vec( + // This rustc_box is not required, but it produces a dramatic improvement in compile + // time when constructing arrays with many elements. + #[rustc_box] + $crate::boxed::Box::new([$($x),+]) + )) + ); +} + +macro_rules! __rust_force_expr { + ($e:expr) => { + $e + }; } + fn main() { vec!(); vec![1u32,2]; + vec![a.]; } "#, expect![[r#" macro_rules! vec { - ($($item:expr),*) => {{ - let mut v = Vec::new(); - $( v.push($item); )* - v - }}; + () => ( + $crate::__rust_force_expr!($crate::vec::Vec::new()) + ); + ($elem:expr; $n:expr) => ( + $crate::__rust_force_expr!($crate::vec::from_elem($elem, $n)) + ); + ($($x:expr),+ $(,)?) => ( + $crate::__rust_force_expr!(<[_]>::into_vec( + // This rustc_box is not required, but it produces a dramatic improvement in compile + // time when constructing arrays with many elements. + #[rustc_box] + $crate::boxed::Box::new([$($x),+]) + )) + ); +} + +macro_rules! __rust_force_expr { + ($e:expr) => { + $e + }; } + fn main() { - { - let mut v = Vec::new(); - v + $crate::__rust_force_expr!($crate:: vec:: Vec:: new()); + $crate::__rust_force_expr!(<[_]>:: into_vec(#[rustc_box]$crate:: boxed:: Box:: new([1u32, 2]))); + /* error: expected Expr */$crate::__rust_force_expr!($crate:: vec:: from_elem((a.), $n)); +} +"#]], + ); + // FIXME we should ahev testing infra for multi level expansion tests + check( + r#" +macro_rules! __rust_force_expr { + ($e:expr) => { + $e }; - { - let mut v = Vec::new(); - v.push(1u32); - v.push(2); - v +} + +fn main() { + __rust_force_expr!(crate:: vec:: Vec:: new()); + __rust_force_expr!(<[_]>:: into_vec(#[rustc_box] crate:: boxed:: Box:: new([1u32, 2]))); + __rust_force_expr/*+errors*/!(crate:: vec:: from_elem((a.), $n)); +} +"#, + expect![[r#" +macro_rules! __rust_force_expr { + ($e:expr) => { + $e }; } + +fn main() { + (crate ::vec::Vec::new()); + (<[_]>::into_vec(#[rustc_box] crate ::boxed::Box::new([1u32, 2]))); + /* error: expected Expr *//* parse error: expected field name or number */ +/* parse error: expected expression */ +/* parse error: expected R_PAREN */ +/* parse error: expected COMMA */ +/* parse error: expected expression, item or let statement */ +(crate ::vec::from_elem((a.), $n)); +} "#]], ); } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs b/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs index ba0a2c0224a..2ac1516ec07 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs @@ -589,6 +589,16 @@ impl Resolver { }) } + pub fn type_owner(&self) -> Option<TypeOwnerId> { + self.scopes().find_map(|scope| match scope { + Scope::BlockScope(_) => None, + &Scope::GenericParams { def, .. } => Some(def.into()), + &Scope::ImplDefScope(id) => Some(id.into()), + &Scope::AdtScope(adt) => Some(adt.into()), + Scope::ExprScope(it) => Some(it.owner.into()), + }) + } + pub fn impl_def(&self) -> Option<ImplId> { self.scopes().find_map(|scope| match scope { Scope::ImplDefScope(def) => Some(*def), @@ -1079,7 +1089,6 @@ impl HasResolver for TypeOwnerId { TypeOwnerId::TypeAliasId(it) => it.resolver(db), TypeOwnerId::ImplId(it) => it.resolver(db), TypeOwnerId::EnumVariantId(it) => it.resolver(db), - TypeOwnerId::ModuleId(it) => it.resolver(db), } } } diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/db.rs b/src/tools/rust-analyzer/crates/hir-expand/src/db.rs index d2c6559b06b..935669d49b5 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/db.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/db.rs @@ -10,17 +10,17 @@ use limit::Limit; use mbe::{syntax_node_to_token_tree, ValueResult}; use rustc_hash::FxHashSet; use syntax::{ - ast::{self, HasAttrs, HasDocComments}, + ast::{self, HasAttrs}, AstNode, Parse, SyntaxError, SyntaxNode, SyntaxToken, T, }; use triomphe::Arc; use crate::{ ast_id_map::AstIdMap, - attrs::RawAttrs, + attrs::{collect_attrs, RawAttrs}, builtin_attr_macro::pseudo_derive_attr_expansion, builtin_fn_macro::EagerExpander, - fixup::{self, SyntaxFixupUndoInfo}, + fixup::{self, reverse_fixups, SyntaxFixupUndoInfo}, hygiene::{apply_mark, SyntaxContextData, Transparency}, span::{RealSpanMap, SpanMap, SpanMapRef}, tt, AstId, BuiltinAttrExpander, BuiltinDeriveExpander, BuiltinFnLikeExpander, EagerCallInfo, @@ -216,9 +216,9 @@ pub fn expand_speculative( // Attributes may have an input token tree, build the subtree and map for this as well // then try finding a token id for our token if it is inside this input subtree. let item = ast::Item::cast(speculative_args.clone())?; - item.doc_comments_and_attrs() + collect_attrs(&item) .nth(invoc_attr_index.ast_index()) - .and_then(Either::left) + .and_then(|x| Either::left(x.1)) }?; match attr.token_tree() { Some(token_tree) => { @@ -421,6 +421,15 @@ fn macro_arg( syntax::NodeOrToken::Token(_) => true, }); fixups.remove.extend(censor); + { + let mut tt = mbe::syntax_node_to_token_tree_modified( + &syntax, + map.as_ref(), + fixups.append.clone(), + fixups.remove.clone(), + ); + reverse_fixups(&mut tt, &fixups.undo_info); + } ( mbe::syntax_node_to_token_tree_modified( &syntax, @@ -479,10 +488,9 @@ fn censor_for_macro_input(loc: &MacroCallLoc, node: &SyntaxNode) -> FxHashSet<Sy MacroCallKind::Attr { .. } if loc.def.is_attribute_derive() => return None, MacroCallKind::Attr { invoc_attr_index, .. } => { cov_mark::hit!(attribute_macro_attr_censoring); - ast::Item::cast(node.clone())? - .doc_comments_and_attrs() + collect_attrs(&ast::Item::cast(node.clone())?) .nth(invoc_attr_index.ast_index()) - .and_then(Either::left) + .and_then(|x| Either::left(x.1)) .map(|attr| attr.syntax().clone()) .into_iter() .collect() diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/eager.rs b/src/tools/rust-analyzer/crates/hir-expand/src/eager.rs index 1e2722e8464..8d55240aef5 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/eager.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/eager.rs @@ -88,7 +88,7 @@ pub fn expand_eager_macro_input( let loc = MacroCallLoc { def, krate, - eager: Some(Box::new(EagerCallInfo { arg: Arc::new(subtree), arg_id, error: err.clone() })), + eager: Some(Arc::new(EagerCallInfo { arg: Arc::new(subtree), arg_id, error: err.clone() })), kind: MacroCallKind::FnLike { ast_id: call_id, expand_to }, call_site, }; diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/fixup.rs b/src/tools/rust-analyzer/crates/hir-expand/src/fixup.rs index 11775c531d4..346cd39a767 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/fixup.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/fixup.rs @@ -8,12 +8,13 @@ use base_db::{ use la_arena::RawIdx; use rustc_hash::{FxHashMap, FxHashSet}; use smallvec::SmallVec; +use stdx::never; use syntax::{ ast::{self, AstNode, HasLoopBody}, match_ast, SyntaxElement, SyntaxKind, SyntaxNode, TextRange, TextSize, }; use triomphe::Arc; -use tt::Spacing; +use tt::{Spacing, Span}; use crate::{ span::SpanMapRef, @@ -45,19 +46,20 @@ impl SyntaxFixupUndoInfo { // replacement -> censor + append // append -> insert a fake node, here we need to assemble some dummy span that we can figure out how // to remove later +const FIXUP_DUMMY_FILE: FileId = FileId::from_raw(FileId::MAX_FILE_ID); +const FIXUP_DUMMY_AST_ID: ErasedFileAstId = ErasedFileAstId::from_raw(RawIdx::from_u32(!0)); +const FIXUP_DUMMY_RANGE: TextRange = TextRange::empty(TextSize::new(0)); +const FIXUP_DUMMY_RANGE_END: TextSize = TextSize::new(!0); pub(crate) fn fixup_syntax(span_map: SpanMapRef<'_>, node: &SyntaxNode) -> SyntaxFixups { let mut append = FxHashMap::<SyntaxElement, _>::default(); let mut remove = FxHashSet::<SyntaxNode>::default(); let mut preorder = node.preorder(); let mut original = Vec::new(); - let dummy_range = TextRange::empty(TextSize::new(0)); + let dummy_range = FIXUP_DUMMY_RANGE; // we use a file id of `FileId(!0)` to signal a fake node, and the text range's start offset as // the index into the replacement vec but only if the end points to !0 - let dummy_anchor = SpanAnchor { - file_id: FileId::from_raw(!0), - ast_id: ErasedFileAstId::from_raw(RawIdx::from(!0)), - }; + let dummy_anchor = SpanAnchor { file_id: FIXUP_DUMMY_FILE, ast_id: FIXUP_DUMMY_AST_ID }; let fake_span = |range| SpanData { range: dummy_range, anchor: dummy_anchor, @@ -76,7 +78,7 @@ pub(crate) fn fixup_syntax(span_map: SpanMapRef<'_>, node: &SyntaxNode) -> Synta let replacement = Leaf::Ident(Ident { text: "__ra_fixup".into(), span: SpanData { - range: TextRange::new(TextSize::new(idx), TextSize::new(!0)), + range: TextRange::new(TextSize::new(idx), FIXUP_DUMMY_RANGE_END), anchor: dummy_anchor, ctx: span_map.span_for_range(node_range).ctx, }, @@ -299,6 +301,13 @@ fn has_error_to_handle(node: &SyntaxNode) -> bool { pub(crate) fn reverse_fixups(tt: &mut Subtree, undo_info: &SyntaxFixupUndoInfo) { let Some(undo_info) = undo_info.original.as_deref() else { return }; let undo_info = &**undo_info; + if never!( + tt.delimiter.close.anchor.file_id == FIXUP_DUMMY_FILE + || tt.delimiter.open.anchor.file_id == FIXUP_DUMMY_FILE + ) { + tt.delimiter.close = SpanData::DUMMY; + tt.delimiter.open = SpanData::DUMMY; + } reverse_fixups_(tt, undo_info); } @@ -310,17 +319,28 @@ fn reverse_fixups_(tt: &mut Subtree, undo_info: &[Subtree]) { .filter(|tt| match tt { tt::TokenTree::Leaf(leaf) => { let span = leaf.span(); - span.anchor.file_id != FileId::from_raw(!0) || span.range.end() == TextSize::new(!0) + let is_real_leaf = span.anchor.file_id != FIXUP_DUMMY_FILE; + let is_replaced_node = span.range.end() == FIXUP_DUMMY_RANGE_END; + is_real_leaf || is_replaced_node } tt::TokenTree::Subtree(_) => true, }) .flat_map(|tt| match tt { tt::TokenTree::Subtree(mut tt) => { + if tt.delimiter.close.anchor.file_id == FIXUP_DUMMY_FILE + || tt.delimiter.open.anchor.file_id == FIXUP_DUMMY_FILE + { + // Even though fixup never creates subtrees with fixup spans, the old proc-macro server + // might copy them if the proc-macro asks for it, so we need to filter those out + // here as well. + return SmallVec::new_const(); + } reverse_fixups_(&mut tt, undo_info); SmallVec::from_const([tt.into()]) } tt::TokenTree::Leaf(leaf) => { - if leaf.span().anchor.file_id == FileId::from_raw(!0) { + if leaf.span().anchor.file_id == FIXUP_DUMMY_FILE { + // we have a fake node here, we need to replace it again with the original let original = undo_info[u32::from(leaf.span().range.start()) as usize].clone(); if original.delimiter.kind == tt::DelimiterKind::Invisible { original.token_trees.into() @@ -328,6 +348,7 @@ fn reverse_fixups_(tt: &mut Subtree, undo_info: &[Subtree]) { SmallVec::from_const([original.into()]) } } else { + // just a normal leaf SmallVec::from_const([leaf.into()]) } } diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/lib.rs b/src/tools/rust-analyzer/crates/hir-expand/src/lib.rs index 74089593ac0..d7819b315c4 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/lib.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/lib.rs @@ -22,6 +22,7 @@ pub mod span; pub mod files; mod fixup; +use attrs::collect_attrs; use triomphe::Arc; use std::{fmt, hash::Hash}; @@ -32,7 +33,7 @@ use base_db::{ }; use either::Either; use syntax::{ - ast::{self, AstNode, HasDocComments}, + ast::{self, AstNode}, SyntaxNode, SyntaxToken, TextRange, TextSize, }; @@ -116,7 +117,7 @@ pub struct MacroCallLoc { pub krate: CrateId, /// Some if this is a macro call for an eager macro. Note that this is `None` /// for the eager input macro file. - eager: Option<Box<EagerCallInfo>>, + eager: Option<Arc<EagerCallInfo>>, pub kind: MacroCallKind, pub call_site: SyntaxContextId, } @@ -438,9 +439,9 @@ impl MacroCallLoc { MacroCallKind::Derive { ast_id, derive_attr_index, .. } => { // FIXME: handle `cfg_attr` ast_id.with_value(ast_id.to_node(db)).map(|it| { - it.doc_comments_and_attrs() + collect_attrs(&it) .nth(derive_attr_index.ast_index()) - .and_then(|it| match it { + .and_then(|it| match it.1 { Either::Left(attr) => Some(attr.syntax().clone()), Either::Right(_) => None, }) @@ -451,9 +452,9 @@ impl MacroCallLoc { if self.def.is_attribute_derive() { // FIXME: handle `cfg_attr` ast_id.with_value(ast_id.to_node(db)).map(|it| { - it.doc_comments_and_attrs() + collect_attrs(&it) .nth(invoc_attr_index.ast_index()) - .and_then(|it| match it { + .and_then(|it| match it.1 { Either::Left(attr) => Some(attr.syntax().clone()), Either::Right(_) => None, }) @@ -549,24 +550,24 @@ impl MacroCallKind { MacroCallKind::Derive { ast_id, derive_attr_index, .. } => { // FIXME: should be the range of the macro name, not the whole derive // FIXME: handle `cfg_attr` - ast_id - .to_node(db) - .doc_comments_and_attrs() + collect_attrs(&ast_id.to_node(db)) .nth(derive_attr_index.ast_index()) .expect("missing derive") + .1 .expect_left("derive is a doc comment?") .syntax() .text_range() } // FIXME: handle `cfg_attr` - MacroCallKind::Attr { ast_id, invoc_attr_index, .. } => ast_id - .to_node(db) - .doc_comments_and_attrs() - .nth(invoc_attr_index.ast_index()) - .expect("missing attribute") - .expect_left("attribute macro is a doc comment?") - .syntax() - .text_range(), + MacroCallKind::Attr { ast_id, invoc_attr_index, .. } => { + collect_attrs(&ast_id.to_node(db)) + .nth(invoc_attr_index.ast_index()) + .expect("missing attribute") + .1 + .expect_left("attribute macro is a doc comment?") + .syntax() + .text_range() + } }; FileRange { range, file_id } @@ -737,11 +738,9 @@ impl ExpansionInfo { let attr_input_or_mac_def = def.or_else(|| match loc.kind { MacroCallKind::Attr { ast_id, invoc_attr_index, .. } => { // FIXME: handle `cfg_attr` - let tt = ast_id - .to_node(db) - .doc_comments_and_attrs() + let tt = collect_attrs(&ast_id.to_node(db)) .nth(invoc_attr_index.ast_index()) - .and_then(Either::left)? + .and_then(|x| Either::left(x.1))? .token_tree()?; Some(InFile::new(ast_id.file_id, tt)) } diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/span.rs b/src/tools/rust-analyzer/crates/hir-expand/src/span.rs index 0a6c22fe42d..fe476a40feb 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/span.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/span.rs @@ -75,27 +75,40 @@ pub struct RealSpanMap { /// Invariant: Sorted vec over TextSize // FIXME: SortedVec<(TextSize, ErasedFileAstId)>? pairs: Box<[(TextSize, ErasedFileAstId)]>, + end: TextSize, } impl RealSpanMap { /// Creates a real file span map that returns absolute ranges (relative ranges to the root ast id). pub fn absolute(file_id: FileId) -> Self { - RealSpanMap { file_id, pairs: Box::from([(TextSize::new(0), ROOT_ERASED_FILE_AST_ID)]) } + RealSpanMap { + file_id, + pairs: Box::from([(TextSize::new(0), ROOT_ERASED_FILE_AST_ID)]), + end: TextSize::new(!0), + } } pub fn from_file(db: &dyn ExpandDatabase, file_id: FileId) -> Self { let mut pairs = vec![(TextSize::new(0), ROOT_ERASED_FILE_AST_ID)]; let ast_id_map = db.ast_id_map(file_id.into()); - pairs.extend( - db.parse(file_id) - .tree() - .items() - .map(|item| (item.syntax().text_range().start(), ast_id_map.ast_id(&item).erase())), - ); - RealSpanMap { file_id, pairs: pairs.into_boxed_slice() } + let tree = db.parse(file_id).tree(); + pairs + .extend(tree.items().map(|item| { + (item.syntax().text_range().start(), ast_id_map.ast_id(&item).erase()) + })); + RealSpanMap { + file_id, + pairs: pairs.into_boxed_slice(), + end: tree.syntax().text_range().end(), + } } pub fn span_for_range(&self, range: TextRange) -> SpanData { + assert!( + range.end() <= self.end, + "range {range:?} goes beyond the end of the file {:?}", + self.end + ); let start = range.start(); let idx = self .pairs diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs index 8262edec22c..6f724e45874 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs @@ -113,7 +113,7 @@ pub(crate) fn infer_query(db: &dyn HirDatabase, def: DefWithBodyId) -> Arc<Infer // FIXME(const-generic-body): We should not get the return type in this way. ctx.return_ty = c .lookup(db.upcast()) - .thing + .expected_ty .box_any() .downcast::<InTypeConstIdMetadata>() .unwrap() diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs index 7ff12e5b7f8..acdb540289d 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs @@ -262,7 +262,7 @@ impl InferenceContext<'_> { fn infer_pat(&mut self, pat: PatId, expected: &Ty, mut default_bm: BindingMode) -> Ty { let mut expected = self.resolve_ty_shallow(expected); - if is_non_ref_pat(self.body, pat) { + if self.is_non_ref_pat(self.body, pat) { let mut pat_adjustments = Vec::new(); while let Some((inner, _lifetime, mutability)) = expected.as_reference() { pat_adjustments.push(expected.clone()); @@ -496,24 +496,28 @@ impl InferenceContext<'_> { self.infer_expr(expr, &Expectation::has_type(expected.clone())) } -} -fn is_non_ref_pat(body: &hir_def::body::Body, pat: PatId) -> bool { - match &body[pat] { - Pat::Tuple { .. } - | Pat::TupleStruct { .. } - | Pat::Record { .. } - | Pat::Range { .. } - | Pat::Slice { .. } => true, - Pat::Or(pats) => pats.iter().all(|p| is_non_ref_pat(body, *p)), - // FIXME: ConstBlock/Path/Lit might actually evaluate to ref, but inference is unimplemented. - Pat::Path(..) => true, - Pat::ConstBlock(..) => true, - Pat::Lit(expr) => !matches!( - body[*expr], - Expr::Literal(Literal::String(..) | Literal::CString(..) | Literal::ByteString(..)) - ), - Pat::Wild | Pat::Bind { .. } | Pat::Ref { .. } | Pat::Box { .. } | Pat::Missing => false, + fn is_non_ref_pat(&mut self, body: &hir_def::body::Body, pat: PatId) -> bool { + match &body[pat] { + Pat::Tuple { .. } + | Pat::TupleStruct { .. } + | Pat::Record { .. } + | Pat::Range { .. } + | Pat::Slice { .. } => true, + Pat::Or(pats) => pats.iter().all(|p| self.is_non_ref_pat(body, *p)), + Pat::Path(p) => { + let v = self.resolve_value_path_inner(p, pat.into()); + v.is_some_and(|x| !matches!(x.0, hir_def::resolver::ValueNs::ConstId(_))) + } + Pat::ConstBlock(..) => false, + Pat::Lit(expr) => !matches!( + body[*expr], + Expr::Literal(Literal::String(..) | Literal::CString(..) | Literal::ByteString(..)) + ), + Pat::Wild | Pat::Bind { .. } | Pat::Ref { .. } | Pat::Box { .. } | Pat::Missing => { + false + } + } } } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs index fcfe1a3b5cf..49fb78f67a6 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/path.rs @@ -40,33 +40,7 @@ impl InferenceContext<'_> { } fn resolve_value_path(&mut self, path: &Path, id: ExprOrPatId) -> Option<ValuePathResolution> { - let (value, self_subst) = if let Some(type_ref) = path.type_anchor() { - let last = path.segments().last()?; - - // Don't use `self.make_ty()` here as we need `orig_ns`. - let ctx = - crate::lower::TyLoweringContext::new(self.db, &self.resolver, self.owner.into()); - let (ty, orig_ns) = ctx.lower_ty_ext(type_ref); - let ty = self.table.insert_type_vars(ty); - let ty = self.table.normalize_associated_types_in(ty); - - let remaining_segments_for_ty = path.segments().take(path.segments().len() - 1); - let (ty, _) = ctx.lower_ty_relative_path(ty, orig_ns, remaining_segments_for_ty); - let ty = self.table.insert_type_vars(ty); - let ty = self.table.normalize_associated_types_in(ty); - self.resolve_ty_assoc_item(ty, last.name, id).map(|(it, substs)| (it, Some(substs)))? - } else { - // FIXME: report error, unresolved first path segment - let value_or_partial = - self.resolver.resolve_path_in_value_ns(self.db.upcast(), path)?; - - match value_or_partial { - ResolveValueResult::ValueNs(it, _) => (it, None), - ResolveValueResult::Partial(def, remaining_index, _) => self - .resolve_assoc_item(def, path, remaining_index, id) - .map(|(it, substs)| (it, Some(substs)))?, - } - }; + let (value, self_subst) = self.resolve_value_path_inner(path, id)?; let value_def = match value { ValueNs::LocalBinding(pat) => match self.result.type_of_binding.get(pat) { @@ -144,6 +118,41 @@ impl InferenceContext<'_> { Some(ValuePathResolution::GenericDef(value_def, generic_def, substs)) } + pub(super) fn resolve_value_path_inner( + &mut self, + path: &Path, + id: ExprOrPatId, + ) -> Option<(ValueNs, Option<chalk_ir::Substitution<Interner>>)> { + let (value, self_subst) = if let Some(type_ref) = path.type_anchor() { + let last = path.segments().last()?; + + // Don't use `self.make_ty()` here as we need `orig_ns`. + let ctx = + crate::lower::TyLoweringContext::new(self.db, &self.resolver, self.owner.into()); + let (ty, orig_ns) = ctx.lower_ty_ext(type_ref); + let ty = self.table.insert_type_vars(ty); + let ty = self.table.normalize_associated_types_in(ty); + + let remaining_segments_for_ty = path.segments().take(path.segments().len() - 1); + let (ty, _) = ctx.lower_ty_relative_path(ty, orig_ns, remaining_segments_for_ty); + let ty = self.table.insert_type_vars(ty); + let ty = self.table.normalize_associated_types_in(ty); + self.resolve_ty_assoc_item(ty, last.name, id).map(|(it, substs)| (it, Some(substs)))? + } else { + // FIXME: report error, unresolved first path segment + let value_or_partial = + self.resolver.resolve_path_in_value_ns(self.db.upcast(), path)?; + + match value_or_partial { + ResolveValueResult::ValueNs(it, _) => (it, None), + ResolveValueResult::Partial(def, remaining_index, _) => self + .resolve_assoc_item(def, path, remaining_index, id) + .map(|(it, substs)| (it, Some(substs)))?, + } + }; + Some((value, self_subst)) + } + fn add_required_obligations_for_value_path(&mut self, def: GenericDefId, subst: &Substitution) { let predicates = self.db.generic_predicates(def); for predicate in predicates.iter() { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs b/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs index c86fe9adff8..97c4a741ff2 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/lower.rs @@ -113,7 +113,9 @@ pub struct TyLoweringContext<'a> { pub db: &'a dyn HirDatabase, resolver: &'a Resolver, in_binders: DebruijnIndex, - owner: TypeOwnerId, + // FIXME: Should not be an `Option` but `Resolver` currently does not return owners in all cases + // where expected + owner: Option<TypeOwnerId>, /// Note: Conceptually, it's thinkable that we could be in a location where /// some type params should be represented as placeholders, and others /// should be converted to variables. I think in practice, this isn't @@ -127,6 +129,14 @@ pub struct TyLoweringContext<'a> { impl<'a> TyLoweringContext<'a> { pub fn new(db: &'a dyn HirDatabase, resolver: &'a Resolver, owner: TypeOwnerId) -> Self { + Self::new_maybe_unowned(db, resolver, Some(owner)) + } + + pub fn new_maybe_unowned( + db: &'a dyn HirDatabase, + resolver: &'a Resolver, + owner: Option<TypeOwnerId>, + ) -> Self { let impl_trait_mode = ImplTraitLoweringState::Disallowed; let type_param_mode = ParamLoweringMode::Placeholder; let in_binders = DebruijnIndex::INNERMOST; @@ -213,10 +223,11 @@ impl<'a> TyLoweringContext<'a> { } pub fn lower_const(&self, const_ref: &ConstRef, const_type: Ty) -> Const { + let Some(owner) = self.owner else { return unknown_const(const_type) }; const_or_path_to_chalk( self.db, self.resolver, - self.owner, + owner, const_type, const_ref, self.type_param_mode, @@ -1768,10 +1779,11 @@ fn type_for_type_alias(db: &dyn HirDatabase, t: TypeAliasId) -> Binders<Ty> { let resolver = t.resolver(db.upcast()); let ctx = TyLoweringContext::new(db, &resolver, t.into()) .with_type_param_mode(ParamLoweringMode::Variable); - if db.type_alias_data(t).is_extern { + let type_alias_data = db.type_alias_data(t); + if type_alias_data.is_extern { Binders::empty(Interner, TyKind::Foreign(crate::to_foreign_def_id(t)).intern(Interner)) } else { - let type_ref = &db.type_alias_data(t).type_ref; + let type_ref = &type_alias_data.type_ref; let inner = ctx.lower_ty(type_ref.as_deref().unwrap_or(&TypeRef::Error)); make_binders(db, &generics, inner) } @@ -2042,7 +2054,7 @@ pub(crate) fn const_or_path_to_chalk( .intern_in_type_const(InTypeConstLoc { id: it, owner, - thing: Box::new(InTypeConstIdMetadata(expected_ty.clone())), + expected_ty: Box::new(InTypeConstIdMetadata(expected_ty.clone())), }) .into(); intern_const_scalar( diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests/incremental.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests/incremental.rs index bb15ca8c436..28e84e480d7 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests/incremental.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests/incremental.rs @@ -9,11 +9,10 @@ use super::visit_module; fn typing_whitespace_inside_a_function_should_not_invalidate_types() { let (mut db, pos) = TestDB::with_position( " - //- /lib.rs - fn foo() -> i32 { - $01 + 1 - } - ", +//- /lib.rs +fn foo() -> i32 { + $01 + 1 +}", ); { let events = db.log_executed(|| { @@ -27,12 +26,11 @@ fn typing_whitespace_inside_a_function_should_not_invalidate_types() { } let new_text = " - fn foo() -> i32 { - 1 - + - 1 - } - "; +fn foo() -> i32 { + 1 + + + 1 +}"; db.set_file_text(pos.file_id, Arc::from(new_text)); @@ -47,3 +45,55 @@ fn typing_whitespace_inside_a_function_should_not_invalidate_types() { assert!(!format!("{events:?}").contains("infer"), "{events:#?}") } } + +#[test] +fn typing_inside_a_function_should_not_invalidate_types_in_another() { + let (mut db, pos) = TestDB::with_position( + " +//- /lib.rs +fn foo() -> f32 { + 1.0 + 2.0 +} +fn bar() -> i32 { + $01 + 1 +} +fn baz() -> i32 { + 1 + 1 +}", + ); + { + let events = db.log_executed(|| { + let module = db.module_for_file(pos.file_id); + let crate_def_map = module.def_map(&db); + visit_module(&db, &crate_def_map, module.local_id, &mut |def| { + db.infer(def); + }); + }); + assert!(format!("{events:?}").contains("infer")) + } + + let new_text = " +fn foo() -> f32 { + 1.0 + 2.0 +} +fn bar() -> i32 { + 53 +} +fn baz() -> i32 { + 1 + 1 +} +"; + + db.set_file_text(pos.file_id, Arc::from(new_text)); + + { + let events = db.log_executed(|| { + let module = db.module_for_file(pos.file_id); + let crate_def_map = module.def_map(&db); + visit_module(&db, &crate_def_map, module.local_id, &mut |def| { + db.infer(def); + }); + }); + assert!(format!("{events:?}").matches("infer").count() == 1, "{events:#?}") + } +} diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests/patterns.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests/patterns.rs index 5d7bab09c26..7234af2d683 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests/patterns.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests/patterns.rs @@ -1153,3 +1153,41 @@ fn main() { "#, ); } + +#[test] +fn type_mismatch_pat_const_reference() { + check_no_mismatches( + r#" +const TEST_STR: &'static str = "abcd"; + +fn main() { + let s = "abcd"; + match s { + TEST_STR => (), + _ => (), + } +} + + "#, + ); + check( + r#" +struct Foo<T>(T); + +impl<T> Foo<T> { + const TEST_I32_REF: &'static i32 = &3; + const TEST_I32: i32 = 3; +} + +fn main() { + match &6 { + Foo::<i32>::TEST_I32_REF => (), + Foo::<i32>::TEST_I32 => (), + //^^^^^^^^^^^^^^^^^^^^ expected &i32, got i32 + _ => (), + } +} + + "#, + ); +} diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics.rs b/src/tools/rust-analyzer/crates/hir/src/semantics.rs index 92fa76c96fb..a03ff220745 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics.rs @@ -20,8 +20,8 @@ use hir_def::{ AsMacroCall, DefWithBodyId, FunctionId, MacroId, TraitId, VariantId, }; use hir_expand::{ - db::ExpandDatabase, files::InRealFile, name::AsName, ExpansionInfo, InMacroFile, MacroCallId, - MacroFileId, MacroFileIdExt, + attrs::collect_attrs, db::ExpandDatabase, files::InRealFile, name::AsName, ExpansionInfo, + InMacroFile, MacroCallId, MacroFileId, MacroFileIdExt, }; use itertools::Itertools; use rustc_hash::{FxHashMap, FxHashSet}; @@ -29,7 +29,7 @@ use smallvec::{smallvec, SmallVec}; use stdx::TupleExt; use syntax::{ algo::skip_trivia_token, - ast::{self, HasAttrs as _, HasDocComments, HasGenericParams, HasLoopBody, IsString as _}, + ast::{self, HasAttrs as _, HasGenericParams, HasLoopBody, IsString as _}, match_ast, AstNode, AstToken, Direction, SyntaxKind, SyntaxNode, SyntaxNodePtr, SyntaxToken, TextRange, TextSize, }; @@ -673,11 +673,22 @@ impl<'db> SemanticsImpl<'db> { } _ => 0, }; + // FIXME: here, the attribute's text range is used to strip away all + // entries from the start of the attribute "list" up the the invoking + // attribute. But in + // ``` + // mod foo { + // #![inner] + // } + // ``` + // we don't wanna strip away stuff in the `mod foo {` range, that is + // here if the id corresponds to an inner attribute we got strip all + // text ranges of the outer ones, and then all of the inner ones up + // to the invoking attribute so that the inbetween is ignored. let text_range = item.syntax().text_range(); - let start = item - .doc_comments_and_attrs() + let start = collect_attrs(&item) .nth(attr_id) - .map(|attr| match attr { + .map(|attr| match attr.1 { Either::Left(it) => it.syntax().text_range().start(), Either::Right(it) => it.syntax().text_range().start(), }) @@ -937,10 +948,10 @@ impl<'db> SemanticsImpl<'db> { pub fn resolve_type(&self, ty: &ast::Type) -> Option<Type> { let analyze = self.analyze(ty.syntax())?; let ctx = LowerCtx::with_file_id(self.db.upcast(), analyze.file_id); - let ty = hir_ty::TyLoweringContext::new( + let ty = hir_ty::TyLoweringContext::new_maybe_unowned( self.db, &analyze.resolver, - analyze.resolver.module().into(), + analyze.resolver.type_owner(), ) .lower_ty(&crate::TypeRef::from_ast(&ctx, ty.clone())); Some(Type::new_with_resolver(self.db, &analyze.resolver, ty)) diff --git a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs index 73db6f8f0b8..d05118bbc28 100644 --- a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs +++ b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs @@ -1040,8 +1040,9 @@ fn resolve_hir_path_( let types = || { let (ty, unresolved) = match path.type_anchor() { Some(type_ref) => { - let (_, res) = TyLoweringContext::new(db, resolver, resolver.module().into()) - .lower_ty_ext(type_ref); + let (_, res) = + TyLoweringContext::new_maybe_unowned(db, resolver, resolver.type_owner()) + .lower_ty_ext(type_ref); res.map(|ty_ns| (ty_ns, path.segments().first())) } None => { diff --git a/src/tools/rust-analyzer/crates/hir/src/symbols.rs b/src/tools/rust-analyzer/crates/hir/src/symbols.rs index 03112f6de5a..a2a30edeb03 100644 --- a/src/tools/rust-analyzer/crates/hir/src/symbols.rs +++ b/src/tools/rust-analyzer/crates/hir/src/symbols.rs @@ -23,6 +23,7 @@ pub struct FileSymbol { pub loc: DeclarationLocation, pub container_name: Option<SmolStr>, pub is_alias: bool, + pub is_assoc: bool, } #[derive(Debug, Clone, PartialEq, Eq, Hash)] @@ -121,34 +122,34 @@ impl<'a> SymbolCollector<'a> { match module_def_id { ModuleDefId::ModuleId(id) => self.push_module(id), ModuleDefId::FunctionId(id) => { - self.push_decl(id); + self.push_decl(id, false); self.collect_from_body(id); } - ModuleDefId::AdtId(AdtId::StructId(id)) => self.push_decl(id), - ModuleDefId::AdtId(AdtId::EnumId(id)) => self.push_decl(id), - ModuleDefId::AdtId(AdtId::UnionId(id)) => self.push_decl(id), + ModuleDefId::AdtId(AdtId::StructId(id)) => self.push_decl(id, false), + ModuleDefId::AdtId(AdtId::EnumId(id)) => self.push_decl(id, false), + ModuleDefId::AdtId(AdtId::UnionId(id)) => self.push_decl(id, false), ModuleDefId::ConstId(id) => { - self.push_decl(id); + self.push_decl(id, false); self.collect_from_body(id); } ModuleDefId::StaticId(id) => { - self.push_decl(id); + self.push_decl(id, false); self.collect_from_body(id); } ModuleDefId::TraitId(id) => { - self.push_decl(id); + self.push_decl(id, false); self.collect_from_trait(id); } ModuleDefId::TraitAliasId(id) => { - self.push_decl(id); + self.push_decl(id, false); } ModuleDefId::TypeAliasId(id) => { - self.push_decl(id); + self.push_decl(id, false); } ModuleDefId::MacroId(id) => match id { - MacroId::Macro2Id(id) => self.push_decl(id), - MacroId::MacroRulesId(id) => self.push_decl(id), - MacroId::ProcMacroId(id) => self.push_decl(id), + MacroId::Macro2Id(id) => self.push_decl(id, false), + MacroId::MacroRulesId(id) => self.push_decl(id, false), + MacroId::ProcMacroId(id) => self.push_decl(id, false), }, // Don't index these. ModuleDefId::BuiltinType(_) => {} @@ -190,6 +191,7 @@ impl<'a> SymbolCollector<'a> { container_name: self.current_container_name.clone(), loc: dec_loc, is_alias: false, + is_assoc: false, }); }); } @@ -202,9 +204,9 @@ impl<'a> SymbolCollector<'a> { for &id in id { if id.module(self.db.upcast()) == module_id { match id { - MacroId::Macro2Id(id) => self.push_decl(id), - MacroId::MacroRulesId(id) => self.push_decl(id), - MacroId::ProcMacroId(id) => self.push_decl(id), + MacroId::Macro2Id(id) => self.push_decl(id, false), + MacroId::MacroRulesId(id) => self.push_decl(id, false), + MacroId::ProcMacroId(id) => self.push_decl(id, false), } } } @@ -266,13 +268,13 @@ impl<'a> SymbolCollector<'a> { fn push_assoc_item(&mut self, assoc_item_id: AssocItemId) { match assoc_item_id { - AssocItemId::FunctionId(id) => self.push_decl(id), - AssocItemId::ConstId(id) => self.push_decl(id), - AssocItemId::TypeAliasId(id) => self.push_decl(id), + AssocItemId::FunctionId(id) => self.push_decl(id, true), + AssocItemId::ConstId(id) => self.push_decl(id, true), + AssocItemId::TypeAliasId(id) => self.push_decl(id, true), } } - fn push_decl<L>(&mut self, id: L) + fn push_decl<L>(&mut self, id: L, is_assoc: bool) where L: Lookup + Into<ModuleDefId>, <L as Lookup>::Data: HasSource, @@ -296,6 +298,7 @@ impl<'a> SymbolCollector<'a> { loc: dec_loc.clone(), container_name: self.current_container_name.clone(), is_alias: true, + is_assoc, }); } } @@ -306,6 +309,7 @@ impl<'a> SymbolCollector<'a> { container_name: self.current_container_name.clone(), loc: dec_loc, is_alias: false, + is_assoc, }); } @@ -331,6 +335,7 @@ impl<'a> SymbolCollector<'a> { loc: dec_loc.clone(), container_name: self.current_container_name.clone(), is_alias: true, + is_assoc: false, }); } } @@ -341,6 +346,7 @@ impl<'a> SymbolCollector<'a> { container_name: self.current_container_name.clone(), loc: dec_loc, is_alias: false, + is_assoc: false, }); } } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_tuple_struct_to_named_struct.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_tuple_struct_to_named_struct.rs index 017853a4a20..435d7c4a537 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_tuple_struct_to_named_struct.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_tuple_struct_to_named_struct.rs @@ -216,7 +216,7 @@ fn edit_field_references( edit.edit_file(file_id); for r in refs { if let Some(name_ref) = r.name.as_name_ref() { - edit.replace(name_ref.syntax().text_range(), name.text()); + edit.replace(ctx.sema.original_range(name_ref.syntax()).range, name.text()); } } } diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/item.rs b/src/tools/rust-analyzer/crates/ide-completion/src/item.rs index b982322a734..de41a5bd70c 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/item.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/item.rs @@ -458,13 +458,11 @@ impl Builder { } if let [import_edit] = &*self.imports_to_add { // snippets can have multiple imports, but normal completions only have up to one - if let Some(original_path) = import_edit.original_path.as_ref() { - label_detail.replace(SmolStr::from(format!( - "{} (use {})", - label_detail.as_deref().unwrap_or_default(), - original_path.display(db) - ))); - } + label_detail.replace(SmolStr::from(format!( + "{} (use {})", + label_detail.as_deref().unwrap_or_default(), + import_edit.import_path.display(db) + ))); } else if let Some(trait_name) = self.trait_name { label_detail.replace(SmolStr::from(format!( "{} (as {trait_name})", diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/snippet.rs b/src/tools/rust-analyzer/crates/ide-completion/src/snippet.rs index 50618296ee4..e667e2e0168 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/snippet.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/snippet.rs @@ -181,7 +181,7 @@ fn import_edits(ctx: &CompletionContext<'_>, requires: &[GreenNode]) -> Option<V ctx.config.prefer_no_std, ctx.config.prefer_prelude, )?; - Some((path.len() > 1).then(|| LocatedImport::new(path.clone(), item, item, None))) + Some((path.len() > 1).then(|| LocatedImport::new(path.clone(), item, item))) }; let mut res = Vec::with_capacity(requires.len()); for import in requires { diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/tests/flyimport.rs b/src/tools/rust-analyzer/crates/ide-completion/src/tests/flyimport.rs index 9a4a94a2456..c58374f2e83 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/tests/flyimport.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/tests/flyimport.rs @@ -597,8 +597,8 @@ fn main() { } "#, expect![[r#" - ct SPECIAL_CONST (use dep::test_mod::TestTrait) u8 DEPRECATED fn weird_function() (use dep::test_mod::TestTrait) fn() DEPRECATED + ct SPECIAL_CONST (use dep::test_mod::TestTrait) u8 DEPRECATED "#]], ); } @@ -717,7 +717,7 @@ fn main() { check( fixture, expect![[r#" - st Item (use foo::bar::baz::Item) Item + st Item (use foo::bar) Item "#]], ); @@ -725,19 +725,19 @@ fn main() { "Item", fixture, r#" - use foo::bar; +use foo::bar; - mod foo { - pub mod bar { - pub mod baz { - pub struct Item; - } - } +mod foo { + pub mod bar { + pub mod baz { + pub struct Item; } + } +} - fn main() { - bar::baz::Item - }"#, +fn main() { + bar::baz::Item +}"#, ); } @@ -803,7 +803,7 @@ fn main() { check( fixture, expect![[r#" - ct TEST_ASSOC (use foo::bar::Item) usize + ct TEST_ASSOC (use foo::bar) usize "#]], ); diff --git a/src/tools/rust-analyzer/crates/ide-db/src/imports/import_assets.rs b/src/tools/rust-analyzer/crates/ide-db/src/imports/import_assets.rs index 04263d15d0a..a4f0a6df781 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/imports/import_assets.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/imports/import_assets.rs @@ -1,14 +1,14 @@ //! Look up accessible paths for items. + use hir::{ - AsAssocItem, AssocItem, AssocItemContainer, Crate, ItemInNs, ModPath, Module, ModuleDef, + AsAssocItem, AssocItem, AssocItemContainer, Crate, ItemInNs, ModPath, Module, ModuleDef, Name, PathResolution, PrefixKind, ScopeDef, Semantics, SemanticsScope, Type, }; -use itertools::Itertools; -use rustc_hash::FxHashSet; +use itertools::{EitherOrBoth, Itertools}; +use rustc_hash::{FxHashMap, FxHashSet}; use syntax::{ ast::{self, make, HasName}, - utils::path_to_string_stripping_turbo_fish, - AstNode, SyntaxNode, + AstNode, SmolStr, SyntaxNode, }; use crate::{ @@ -51,18 +51,11 @@ pub struct TraitImportCandidate { #[derive(Debug)] pub struct PathImportCandidate { /// Optional qualifier before name. - pub qualifier: Option<FirstSegmentUnresolved>, + pub qualifier: Option<Vec<SmolStr>>, /// The name the item (struct, trait, enum, etc.) should have. pub name: NameToImport, } -/// A qualifier that has a first segment and it's unresolved. -#[derive(Debug)] -pub struct FirstSegmentUnresolved { - fist_segment: ast::NameRef, - full_qualifier: ast::Path, -} - /// A name that will be used during item lookups. #[derive(Debug, Clone)] pub enum NameToImport { @@ -195,18 +188,11 @@ pub struct LocatedImport { /// the original item is the associated constant, but the import has to be a trait that /// defines this constant. pub original_item: ItemInNs, - /// A path of the original item. - pub original_path: Option<ModPath>, } impl LocatedImport { - pub fn new( - import_path: ModPath, - item_to_import: ItemInNs, - original_item: ItemInNs, - original_path: Option<ModPath>, - ) -> Self { - Self { import_path, item_to_import, original_item, original_path } + pub fn new(import_path: ModPath, item_to_import: ItemInNs, original_item: ItemInNs) -> Self { + Self { import_path, item_to_import, original_item } } } @@ -351,64 +337,75 @@ fn path_applicable_imports( ) .filter_map(|item| { let mod_path = mod_path(item)?; - Some(LocatedImport::new(mod_path.clone(), item, item, Some(mod_path))) - }) - .collect() - } - Some(first_segment_unresolved) => { - let unresolved_qualifier = - path_to_string_stripping_turbo_fish(&first_segment_unresolved.full_qualifier); - let unresolved_first_segment = first_segment_unresolved.fist_segment.text(); - items_locator::items_with_name( - sema, - current_crate, - path_candidate.name.clone(), - AssocSearchMode::Include, - Some(DEFAULT_QUERY_SEARCH_LIMIT.inner()), - ) - .filter_map(|item| { - import_for_item( - sema.db, - mod_path, - &unresolved_first_segment, - &unresolved_qualifier, - item, - ) + Some(LocatedImport::new(mod_path, item, item)) }) .collect() } + Some(qualifier) => items_locator::items_with_name( + sema, + current_crate, + path_candidate.name.clone(), + AssocSearchMode::Include, + Some(DEFAULT_QUERY_SEARCH_LIMIT.inner()), + ) + .filter_map(|item| import_for_item(sema.db, mod_path, &qualifier, item)) + .collect(), } } fn import_for_item( db: &RootDatabase, mod_path: impl Fn(ItemInNs) -> Option<ModPath>, - unresolved_first_segment: &str, - unresolved_qualifier: &str, + unresolved_qualifier: &[SmolStr], original_item: ItemInNs, ) -> Option<LocatedImport> { let _p = profile::span("import_assets::import_for_item"); + let [first_segment, ..] = unresolved_qualifier else { return None }; - let original_item_candidate = item_for_path_search(db, original_item)?; + let item_as_assoc = item_as_assoc(db, original_item); + + let (original_item_candidate, trait_item_to_import) = match item_as_assoc { + Some(assoc_item) => match assoc_item.container(db) { + AssocItemContainer::Trait(trait_) => { + let trait_ = ItemInNs::from(ModuleDef::from(trait_)); + (trait_, Some(trait_)) + } + AssocItemContainer::Impl(impl_) => { + (ItemInNs::from(ModuleDef::from(impl_.self_ty(db).as_adt()?)), None) + } + }, + None => (original_item, None), + }; let import_path_candidate = mod_path(original_item_candidate)?; - let import_path_string = import_path_candidate.display(db).to_string(); - let expected_import_end = if item_as_assoc(db, original_item).is_some() { - unresolved_qualifier.to_string() - } else { - format!("{unresolved_qualifier}::{}", item_name(db, original_item)?.display(db)) + let mut import_path_candidate_segments = import_path_candidate.segments().iter().rev(); + let predicate = |it: EitherOrBoth<&SmolStr, &Name>| match it { + // segments match, check next one + EitherOrBoth::Both(a, b) if b.as_str() == Some(&**a) => None, + // segments mismatch / qualifier is longer than the path, bail out + EitherOrBoth::Both(..) | EitherOrBoth::Left(_) => Some(false), + // all segments match and we have exhausted the qualifier, proceed + EitherOrBoth::Right(_) => Some(true), }; - if !import_path_string.contains(unresolved_first_segment) - || !import_path_string.ends_with(&expected_import_end) - { + if item_as_assoc.is_none() { + let item_name = item_name(db, original_item)?.as_text()?; + let last_segment = import_path_candidate_segments.next()?; + if last_segment.as_str() != Some(&*item_name) { + return None; + } + } + let ends_with = unresolved_qualifier + .iter() + .rev() + .zip_longest(import_path_candidate_segments) + .find_map(predicate) + .unwrap_or(true); + if !ends_with { return None; } - let segment_import = - find_import_for_segment(db, original_item_candidate, unresolved_first_segment)?; - let trait_item_to_import = item_as_assoc(db, original_item) - .and_then(|assoc| assoc.containing_trait(db)) - .map(|trait_| ItemInNs::from(ModuleDef::from(trait_))); + let segment_import = find_import_for_segment(db, original_item_candidate, first_segment)?; + Some(match (segment_import == original_item_candidate, trait_item_to_import) { (true, Some(_)) => { // FIXME we should be able to import both the trait and the segment, @@ -416,42 +413,37 @@ fn import_for_item( // especially in case of lazy completion edit resolutions. return None; } - (false, Some(trait_to_import)) => LocatedImport::new( - mod_path(trait_to_import)?, - trait_to_import, - original_item, - mod_path(original_item), - ), - (true, None) => LocatedImport::new( - import_path_candidate, - original_item_candidate, - original_item, - mod_path(original_item), - ), - (false, None) => LocatedImport::new( - mod_path(segment_import)?, - segment_import, - original_item, - mod_path(original_item), - ), + (false, Some(trait_to_import)) => { + LocatedImport::new(mod_path(trait_to_import)?, trait_to_import, original_item) + } + (true, None) => { + LocatedImport::new(import_path_candidate, original_item_candidate, original_item) + } + (false, None) => { + LocatedImport::new(mod_path(segment_import)?, segment_import, original_item) + } }) } pub fn item_for_path_search(db: &RootDatabase, item: ItemInNs) -> Option<ItemInNs> { Some(match item { ItemInNs::Types(_) | ItemInNs::Values(_) => match item_as_assoc(db, item) { - Some(assoc_item) => match assoc_item.container(db) { - AssocItemContainer::Trait(trait_) => ItemInNs::from(ModuleDef::from(trait_)), - AssocItemContainer::Impl(impl_) => { - ItemInNs::from(ModuleDef::from(impl_.self_ty(db).as_adt()?)) - } - }, + Some(assoc_item) => item_for_path_search_assoc(db, assoc_item)?, None => item, }, ItemInNs::Macros(_) => item, }) } +fn item_for_path_search_assoc(db: &RootDatabase, assoc_item: AssocItem) -> Option<ItemInNs> { + Some(match assoc_item.container(db) { + AssocItemContainer::Trait(trait_) => ItemInNs::from(ModuleDef::from(trait_)), + AssocItemContainer::Impl(impl_) => { + ItemInNs::from(ModuleDef::from(impl_.self_ty(db).as_adt()?)) + } + }) +} + fn find_import_for_segment( db: &RootDatabase, original_item: ItemInNs, @@ -528,6 +520,7 @@ fn trait_applicable_items( .collect(); let mut located_imports = FxHashSet::default(); + let mut trait_import_paths = FxHashMap::default(); if trait_assoc_item { trait_candidate.receiver_ty.iterate_path_candidates( @@ -545,12 +538,14 @@ fn trait_applicable_items( } let located_trait = assoc.containing_trait(db)?; let trait_item = ItemInNs::from(ModuleDef::from(located_trait)); - let original_item = assoc_to_item(assoc); + let import_path = trait_import_paths + .entry(trait_item) + .or_insert_with(|| mod_path(trait_item)) + .clone()?; located_imports.insert(LocatedImport::new( - mod_path(trait_item)?, + import_path, trait_item, - original_item, - mod_path(original_item), + assoc_to_item(assoc), )); } None::<()> @@ -568,12 +563,14 @@ fn trait_applicable_items( if required_assoc_items.contains(&assoc) { let located_trait = assoc.containing_trait(db)?; let trait_item = ItemInNs::from(ModuleDef::from(located_trait)); - let original_item = assoc_to_item(assoc); + let import_path = trait_import_paths + .entry(trait_item) + .or_insert_with(|| mod_path(trait_item)) + .clone()?; located_imports.insert(LocatedImport::new( - mod_path(trait_item)?, + import_path, trait_item, - original_item, - mod_path(original_item), + assoc_to_item(assoc), )); } None::<()> @@ -671,18 +668,13 @@ fn path_import_candidate( Some(match qualifier { Some(qualifier) => match sema.resolve_path(&qualifier) { None => { - let qualifier_start = - qualifier.syntax().descendants().find_map(ast::NameRef::cast)?; - let qualifier_start_path = - qualifier_start.syntax().ancestors().find_map(ast::Path::cast)?; - if sema.resolve_path(&qualifier_start_path).is_none() { - ImportCandidate::Path(PathImportCandidate { - qualifier: Some(FirstSegmentUnresolved { - fist_segment: qualifier_start, - full_qualifier: qualifier, - }), - name, - }) + if qualifier.first_qualifier().map_or(true, |it| sema.resolve_path(&it).is_none()) { + let mut qualifier = qualifier + .segments_of_this_path_only_rev() + .map(|seg| seg.name_ref().map(|name| SmolStr::new(name.text()))) + .collect::<Option<Vec<_>>>()?; + qualifier.reverse(); + ImportCandidate::Path(PathImportCandidate { qualifier: Some(qualifier), name }) } else { return None; } diff --git a/src/tools/rust-analyzer/crates/ide-db/src/items_locator.rs b/src/tools/rust-analyzer/crates/ide-db/src/items_locator.rs index 67ed44f08b7..4a5d234f73d 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/items_locator.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/items_locator.rs @@ -3,13 +3,13 @@ //! The main reason for this module to exist is the fact that project's items and dependencies' items //! are located in different caches, with different APIs. use either::Either; -use hir::{import_map, AsAssocItem, Crate, ItemInNs, Semantics}; +use hir::{import_map, Crate, ItemInNs, Semantics}; use limit::Limit; use crate::{imports::import_assets::NameToImport, symbol_index, RootDatabase}; /// A value to use, when uncertain which limit to pick. -pub static DEFAULT_QUERY_SEARCH_LIMIT: Limit = Limit::new(40); +pub static DEFAULT_QUERY_SEARCH_LIMIT: Limit = Limit::new(100); pub use import_map::AssocSearchMode; @@ -36,7 +36,9 @@ pub fn items_with_name<'a>( NameToImport::Prefix(exact_name, case_sensitive) | NameToImport::Exact(exact_name, case_sensitive) => { let mut local_query = symbol_index::Query::new(exact_name.clone()); - let mut external_query = import_map::Query::new(exact_name); + let mut external_query = + // import_map::Query::new(exact_name).assoc_search_mode(assoc_item_search); + import_map::Query::new(exact_name); if prefix { local_query.prefix(); external_query = external_query.prefix(); @@ -101,8 +103,8 @@ fn find_items<'a>( .into_iter() .filter(move |candidate| match assoc_item_search { AssocSearchMode::Include => true, - AssocSearchMode::Exclude => candidate.def.as_assoc_item(db).is_none(), - AssocSearchMode::AssocItemsOnly => candidate.def.as_assoc_item(db).is_some(), + AssocSearchMode::Exclude => !candidate.is_assoc, + AssocSearchMode::AssocItemsOnly => candidate.is_assoc, }) .map(|local_candidate| match local_candidate.def { hir::ModuleDef::Macro(macro_def) => ItemInNs::Macros(macro_def), diff --git a/src/tools/rust-analyzer/crates/ide-db/src/symbol_index.rs b/src/tools/rust-analyzer/crates/ide-db/src/symbol_index.rs index 3e89159c2c6..be8566b759c 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/symbol_index.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/symbol_index.rs @@ -50,7 +50,7 @@ enum SearchMode { Prefix, } -#[derive(Debug)] +#[derive(Debug, Clone)] pub struct Query { query: String, lowercased: String, diff --git a/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_doc_alias.txt b/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_doc_alias.txt index 4a72881fe5e..7c01ac06939 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_doc_alias.txt +++ b/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_doc_alias.txt @@ -36,6 +36,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "Struct", @@ -65,6 +66,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "mul1", @@ -94,6 +96,7 @@ }, container_name: None, is_alias: true, + is_assoc: false, }, FileSymbol { name: "mul2", @@ -123,6 +126,7 @@ }, container_name: None, is_alias: true, + is_assoc: false, }, FileSymbol { name: "s1", @@ -152,6 +156,7 @@ }, container_name: None, is_alias: true, + is_assoc: false, }, FileSymbol { name: "s1", @@ -181,6 +186,7 @@ }, container_name: None, is_alias: true, + is_assoc: false, }, FileSymbol { name: "s2", @@ -210,6 +216,7 @@ }, container_name: None, is_alias: true, + is_assoc: false, }, ], ), diff --git a/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_symbol_index_collection.txt b/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_symbol_index_collection.txt index da1f3167d7d..c9875c7f8f2 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_symbol_index_collection.txt +++ b/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_symbol_index_collection.txt @@ -34,6 +34,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "CONST", @@ -61,6 +62,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "CONST_WITH_INNER", @@ -88,6 +90,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "Enum", @@ -117,6 +120,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "ItemLikeMacro", @@ -146,6 +150,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "Macro", @@ -175,6 +180,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "STATIC", @@ -202,6 +208,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "Struct", @@ -231,6 +238,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "StructFromMacro", @@ -260,6 +268,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "StructInFn", @@ -291,6 +300,7 @@ "main", ), is_alias: false, + is_assoc: false, }, FileSymbol { name: "StructInNamedConst", @@ -322,6 +332,7 @@ "CONST_WITH_INNER", ), is_alias: false, + is_assoc: false, }, FileSymbol { name: "StructInUnnamedConst", @@ -351,6 +362,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "Trait", @@ -378,6 +390,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "Trait", @@ -407,6 +420,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "Union", @@ -436,6 +450,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "a_mod", @@ -465,6 +480,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "b_mod", @@ -494,6 +510,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "define_struct", @@ -523,6 +540,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "impl_fn", @@ -550,6 +568,7 @@ }, container_name: None, is_alias: false, + is_assoc: true, }, FileSymbol { name: "macro_rules_macro", @@ -579,6 +598,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "main", @@ -606,6 +626,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "really_define_struct", @@ -635,6 +656,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "trait_fn", @@ -664,6 +686,7 @@ "Trait", ), is_alias: false, + is_assoc: true, }, ], ), @@ -704,6 +727,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, ], ), @@ -744,6 +768,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "StructInModB", @@ -773,6 +798,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "SuperItemLikeMacro", @@ -802,6 +828,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "ThisStruct", @@ -831,6 +858,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, FileSymbol { name: "ThisStruct", @@ -860,6 +888,7 @@ }, container_name: None, is_alias: false, + is_assoc: false, }, ], ), diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_extern_crate.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_extern_crate.rs index 71c501a336b..f8265b63275 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_extern_crate.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_extern_crate.rs @@ -47,19 +47,4 @@ use foo::Foo as Bar; "#, ); } - - #[test] - fn regression_panic_with_inner_attribute_in_presence_of_unresolved_crate() { - check_diagnostics( - r#" -//- /lib.rs - #[macro_use] extern crate doesnotexist; -//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: unresolved extern crate - mod _test_inner { - #![empty_attr] - //^^^^^^^^^^^^^^ error: unresolved macro `empty_attr` - } -"#, - ); - } } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_macro_call.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_macro_call.rs index 33e7c2e37c3..c8ff54cba3a 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_macro_call.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unresolved_macro_call.rs @@ -70,4 +70,16 @@ self::m!(); self::m2!(); "#, ); } + + #[test] + fn regression_panic_with_inner_attribute_in_presence_of_unresolved_crate() { + check_diagnostics( + r#" + mod _test_inner { + #![empty_attr] + //^^^^^^^^^^^^^^ error: unresolved macro `empty_attr` + } +"#, + ); + } } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs index 6541bf60579..579386c72ef 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs @@ -94,7 +94,7 @@ use syntax::{ }; // FIXME: Make this an enum -#[derive(Copy, Clone, Debug, PartialEq, Eq)] +#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] pub enum DiagnosticCode { RustcHardError(&'static str), RustcLint(&'static str), @@ -198,7 +198,7 @@ impl Diagnostic { } } -#[derive(Debug, Copy, Clone, PartialEq, Eq)] +#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)] pub enum Severity { Error, Warning, diff --git a/src/tools/rust-analyzer/crates/ide/src/inlay_hints.rs b/src/tools/rust-analyzer/crates/ide/src/inlay_hints.rs index ca334e91579..e82d730e4a3 100644 --- a/src/tools/rust-analyzer/crates/ide/src/inlay_hints.rs +++ b/src/tools/rust-analyzer/crates/ide/src/inlay_hints.rs @@ -422,6 +422,11 @@ fn ty_to_text_edit( Some(builder.finish()) } +pub enum RangeLimit { + Fixed(TextRange), + NearestParent(TextSize), +} + // Feature: Inlay Hints // // rust-analyzer shows additional information inline with the source code. @@ -443,7 +448,7 @@ fn ty_to_text_edit( pub(crate) fn inlay_hints( db: &RootDatabase, file_id: FileId, - range_limit: Option<TextRange>, + range_limit: Option<RangeLimit>, config: &InlayHintsConfig, ) -> Vec<InlayHint> { let _p = profile::span("inlay_hints"); @@ -458,13 +463,31 @@ pub(crate) fn inlay_hints( let hints = |node| hints(&mut acc, &famous_defs, config, file_id, node); match range_limit { - Some(range) => match file.covering_element(range) { + Some(RangeLimit::Fixed(range)) => match file.covering_element(range) { NodeOrToken::Token(_) => return acc, NodeOrToken::Node(n) => n .descendants() .filter(|descendant| range.intersect(descendant.text_range()).is_some()) .for_each(hints), }, + Some(RangeLimit::NearestParent(position)) => { + match file.token_at_offset(position).left_biased() { + Some(token) => { + if let Some(parent_block) = + token.parent_ancestors().find_map(ast::BlockExpr::cast) + { + parent_block.syntax().descendants().for_each(hints) + } else if let Some(parent_item) = + token.parent_ancestors().find_map(ast::Item::cast) + { + parent_item.syntax().descendants().for_each(hints) + } else { + return acc; + } + } + None => return acc, + } + } None => file.descendants().for_each(hints), }; } diff --git a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/bind_pat.rs b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/bind_pat.rs index 680035c721b..45b51e35570 100644 --- a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/bind_pat.rs +++ b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/bind_pat.rs @@ -177,7 +177,11 @@ mod tests { use syntax::{TextRange, TextSize}; use test_utils::extract_annotations; - use crate::{fixture, inlay_hints::InlayHintsConfig, ClosureReturnTypeHints}; + use crate::{ + fixture, + inlay_hints::{InlayHintsConfig, RangeLimit}, + ClosureReturnTypeHints, + }; use crate::inlay_hints::tests::{ check, check_edit, check_no_edit, check_with_config, DISABLED_CONFIG, TEST_CONFIG, @@ -400,7 +404,7 @@ fn main() { .inlay_hints( &InlayHintsConfig { type_hints: true, ..DISABLED_CONFIG }, file_id, - Some(TextRange::new(TextSize::from(500), TextSize::from(600))), + Some(RangeLimit::Fixed(TextRange::new(TextSize::from(500), TextSize::from(600)))), ) .unwrap(); let actual = diff --git a/src/tools/rust-analyzer/crates/ide/src/lib.rs b/src/tools/rust-analyzer/crates/ide/src/lib.rs index d8f6e4e1b1b..a19952e4cae 100644 --- a/src/tools/rust-analyzer/crates/ide/src/lib.rs +++ b/src/tools/rust-analyzer/crates/ide/src/lib.rs @@ -94,7 +94,7 @@ pub use crate::{ inlay_hints::{ AdjustmentHints, AdjustmentHintsMode, ClosureReturnTypeHints, DiscriminantHints, InlayFieldsToResolve, InlayHint, InlayHintLabel, InlayHintLabelPart, InlayHintPosition, - InlayHintsConfig, InlayKind, InlayTooltip, LifetimeElisionHints, + InlayHintsConfig, InlayKind, InlayTooltip, LifetimeElisionHints, RangeLimit, }, join_lines::JoinLinesConfig, markup::Markup, @@ -133,7 +133,9 @@ pub use ide_db::{ symbol_index::Query, RootDatabase, SymbolKind, }; -pub use ide_diagnostics::{Diagnostic, DiagnosticsConfig, ExprFillDefaultMode, Severity}; +pub use ide_diagnostics::{ + Diagnostic, DiagnosticCode, DiagnosticsConfig, ExprFillDefaultMode, Severity, +}; pub use ide_ssr::SsrError; pub use syntax::{TextRange, TextSize}; pub use text_edit::{Indel, TextEdit}; @@ -397,7 +399,7 @@ impl Analysis { &self, config: &InlayHintsConfig, file_id: FileId, - range: Option<TextRange>, + range: Option<RangeLimit>, ) -> Cancellable<Vec<InlayHint>> { self.with_db(|db| inlay_hints::inlay_hints(db, file_id, range, config)) } diff --git a/src/tools/rust-analyzer/crates/mbe/src/syntax_bridge.rs b/src/tools/rust-analyzer/crates/mbe/src/syntax_bridge.rs index 1c46471a383..b89bfd74a6e 100644 --- a/src/tools/rust-analyzer/crates/mbe/src/syntax_bridge.rs +++ b/src/tools/rust-analyzer/crates/mbe/src/syntax_bridge.rs @@ -311,7 +311,7 @@ where let ident = tt::Leaf::from(tt::Ident { text: SmolStr::new(&token.to_text(conv)[1..]), - span: conv.span_for(TextRange::at( + span: conv.span_for(TextRange::new( abs_range.start() + TextSize::of('\''), abs_range.end(), )), @@ -625,25 +625,6 @@ impl<SpanMap, S> Converter<SpanMap, S> { } fn next_token(&mut self) -> Option<SyntaxToken> { - // while let Some(ev) = self.preorder.next() { - // match ev { - // WalkEvent::Enter(SyntaxElement::Token(t)) => { - // if let Some(leafs) = self.append.remove(&t.clone().into()) { - // self.current_leafs.extend(leafs); - // } - // return Some(t); - // } - // WalkEvent::Enter(SyntaxElement::Node(n)) if self.remove.contains(&n) => { - // self.preorder.skip_subtree(); - // if let Some(leafs) = self.append.remove(&n.into()) { - // self.current_leafs.extend(leafs); - // } - // } - // _ => (), - // } - // } - // None; - while let Some(ev) = self.preorder.next() { match ev { WalkEvent::Enter(SyntaxElement::Token(t)) => return Some(t), diff --git a/src/tools/rust-analyzer/crates/mbe/src/tt_iter.rs b/src/tools/rust-analyzer/crates/mbe/src/tt_iter.rs index 595691b1773..40e8a2385f4 100644 --- a/src/tools/rust-analyzer/crates/mbe/src/tt_iter.rs +++ b/src/tools/rust-analyzer/crates/mbe/src/tt_iter.rs @@ -131,7 +131,6 @@ impl<'a, S: Span> TtIter<'a, S> { let buffer = tt::buffer::TokenBuffer::from_tokens(self.inner.as_slice()); let parser_input = to_parser_input(&buffer); let tree_traversal = entry_point.parse(&parser_input); - let mut cursor = buffer.begin(); let mut error = false; for step in tree_traversal.iter() { @@ -163,12 +162,10 @@ impl<'a, S: Span> TtIter<'a, S> { let mut curr = buffer.begin(); let mut res = vec![]; - if cursor.is_root() { - while curr != cursor { - let Some(token) = curr.token_tree() else { break }; - res.push(token.cloned()); - curr = curr.bump(); - } + while curr != cursor { + let Some(token) = curr.token_tree() else { break }; + res.push(token.cloned()); + curr = curr.bump(); } self.inner = self.inner.as_slice()[res.len()..].iter(); diff --git a/src/tools/rust-analyzer/crates/proc-macro-api/src/version.rs b/src/tools/rust-analyzer/crates/proc-macro-api/src/version.rs index 87118a62650..5ff1f36c545 100644 --- a/src/tools/rust-analyzer/crates/proc-macro-api/src/version.rs +++ b/src/tools/rust-analyzer/crates/proc-macro-api/src/version.rs @@ -131,7 +131,7 @@ pub fn read_version(dylib_path: &AbsPath) -> io::Result<String> { let len_bytes = &dot_rustc[8..16]; let data_len = u64::from_le_bytes(len_bytes.try_into().unwrap()) as usize; (&dot_rustc[16..data_len + 12], 17) - } + } _ => { return Err(io::Error::new( io::ErrorKind::InvalidData, diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/Cargo.toml b/src/tools/rust-analyzer/crates/rust-analyzer/Cargo.toml index 408c1fb6f39..39ac338aa1a 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/Cargo.toml +++ b/src/tools/rust-analyzer/crates/rust-analyzer/Cargo.toml @@ -42,6 +42,7 @@ tracing-tree.workspace = true triomphe.workspace = true nohash-hasher.workspace = true always-assert = "0.1.2" +walkdir = "2.3.2" cfg.workspace = true flycheck.workspace = true diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/bin/main.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/bin/main.rs index 29bd02f92da..8472e49de98 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/bin/main.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/bin/main.rs @@ -87,6 +87,7 @@ fn main() -> anyhow::Result<()> { flags::RustAnalyzerCmd::Lsif(cmd) => cmd.run()?, flags::RustAnalyzerCmd::Scip(cmd) => cmd.run()?, flags::RustAnalyzerCmd::RunTests(cmd) => cmd.run()?, + flags::RustAnalyzerCmd::RustcTests(cmd) => cmd.run()?, } Ok(()) } diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli.rs index 64646b33ad4..de00c4192b4 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli.rs @@ -10,6 +10,7 @@ mod ssr; mod lsif; mod scip; mod run_tests; +mod rustc_tests; mod progress_report; diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/flags.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/flags.rs index fe5022f8606..5633c0c488a 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/flags.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/flags.rs @@ -98,6 +98,15 @@ xflags::xflags! { required path: PathBuf } + /// Run unit tests of the project using mir interpreter + cmd rustc-tests { + /// Directory with Cargo.toml. + required rustc_repo: PathBuf + + /// Only run tests with filter as substring + optional --filter path: String + } + cmd diagnostics { /// Directory with Cargo.toml. required path: PathBuf @@ -159,6 +168,7 @@ pub enum RustAnalyzerCmd { Highlight(Highlight), AnalysisStats(AnalysisStats), RunTests(RunTests), + RustcTests(RustcTests), Diagnostics(Diagnostics), Ssr(Ssr), Search(Search), @@ -212,6 +222,12 @@ pub struct RunTests { } #[derive(Debug)] +pub struct RustcTests { + pub rustc_repo: PathBuf, + pub filter: Option<String>, +} + +#[derive(Debug)] pub struct Diagnostics { pub path: PathBuf, diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs new file mode 100644 index 00000000000..c89b88ac0f9 --- /dev/null +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs @@ -0,0 +1,236 @@ +//! Run all tests in a project, similar to `cargo test`, but using the mir interpreter. + +use std::{ + cell::RefCell, collections::HashMap, fs::read_to_string, panic::AssertUnwindSafe, path::PathBuf, +}; + +use hir::Crate; +use ide::{AnalysisHost, Change, DiagnosticCode, DiagnosticsConfig}; +use profile::StopWatch; +use project_model::{CargoConfig, ProjectWorkspace, RustLibSource, Sysroot}; + +use load_cargo::{load_workspace, LoadCargoConfig, ProcMacroServerChoice}; +use triomphe::Arc; +use vfs::{AbsPathBuf, FileId}; +use walkdir::WalkDir; + +use crate::cli::{flags, report_metric, Result}; + +struct Tester { + host: AnalysisHost, + root_file: FileId, + pass_count: u64, + ignore_count: u64, + fail_count: u64, + stopwatch: StopWatch, +} + +fn string_to_diagnostic_code_leaky(code: &str) -> DiagnosticCode { + thread_local! { + static LEAK_STORE: RefCell<HashMap<String, DiagnosticCode>> = RefCell::new(HashMap::new()); + } + LEAK_STORE.with_borrow_mut(|s| match s.get(code) { + Some(c) => *c, + None => { + let v = DiagnosticCode::RustcHardError(format!("E{code}").leak()); + s.insert(code.to_owned(), v); + v + } + }) +} + +fn detect_errors_from_rustc_stderr_file(p: PathBuf) -> HashMap<DiagnosticCode, usize> { + let text = read_to_string(p).unwrap(); + let mut result = HashMap::new(); + { + let mut text = &*text; + while let Some(p) = text.find("error[E") { + text = &text[p + 7..]; + let code = string_to_diagnostic_code_leaky(&text[..4]); + *result.entry(code).or_insert(0) += 1; + } + } + result +} + +impl Tester { + fn new() -> Result<Self> { + let tmp_file = AbsPathBuf::assert("/tmp/ra-rustc-test.rs".into()); + std::fs::write(&tmp_file, "")?; + let mut cargo_config = CargoConfig::default(); + cargo_config.sysroot = Some(RustLibSource::Discover); + let workspace = ProjectWorkspace::DetachedFiles { + files: vec![tmp_file.clone()], + sysroot: Ok( + Sysroot::discover(tmp_file.parent().unwrap(), &cargo_config.extra_env).unwrap() + ), + rustc_cfg: vec![], + }; + let load_cargo_config = LoadCargoConfig { + load_out_dirs_from_check: false, + with_proc_macro_server: ProcMacroServerChoice::Sysroot, + prefill_caches: false, + }; + let (host, _vfs, _proc_macro) = + load_workspace(workspace, &cargo_config.extra_env, &load_cargo_config)?; + let db = host.raw_database(); + let krates = Crate::all(db); + let root_crate = krates.iter().cloned().find(|krate| krate.origin(db).is_local()).unwrap(); + let root_file = root_crate.root_file(db); + Ok(Self { + host, + root_file, + pass_count: 0, + ignore_count: 0, + fail_count: 0, + stopwatch: StopWatch::start(), + }) + } + + fn test(&mut self, p: PathBuf) { + if p.parent().unwrap().file_name().unwrap() == "auxiliary" { + // These are not tests + return; + } + if IGNORED_TESTS.iter().any(|ig| p.file_name().is_some_and(|x| x == *ig)) { + println!("{p:?} IGNORE"); + self.ignore_count += 1; + return; + } + let stderr_path = p.with_extension("stderr"); + let expected = if stderr_path.exists() { + detect_errors_from_rustc_stderr_file(stderr_path) + } else { + HashMap::new() + }; + let text = read_to_string(&p).unwrap(); + let mut change = Change::new(); + // Ignore unstable tests, since they move too fast and we do not intend to support all of them. + let mut ignore_test = text.contains("#![feature"); + // Ignore test with extern crates, as this infra don't support them yet. + ignore_test |= text.contains("// aux-build:") || text.contains("// aux-crate:"); + // Ignore test with extern modules similarly. + ignore_test |= text.contains("mod "); + // These should work, but they don't, and I don't know why, so ignore them. + ignore_test |= text.contains("extern crate proc_macro"); + let should_have_no_error = text.contains("// check-pass") + || text.contains("// build-pass") + || text.contains("// run-pass"); + change.change_file(self.root_file, Some(Arc::from(text))); + self.host.apply_change(change); + let diagnostic_config = DiagnosticsConfig::test_sample(); + let diags = self + .host + .analysis() + .diagnostics(&diagnostic_config, ide::AssistResolveStrategy::None, self.root_file) + .unwrap(); + let mut actual = HashMap::new(); + for diag in diags { + if !matches!(diag.code, DiagnosticCode::RustcHardError(_)) { + continue; + } + if !should_have_no_error && !SUPPORTED_DIAGNOSTICS.contains(&diag.code) { + continue; + } + *actual.entry(diag.code).or_insert(0) += 1; + } + // Ignore tests with diagnostics that we don't emit. + ignore_test |= expected.keys().any(|k| !SUPPORTED_DIAGNOSTICS.contains(k)); + if ignore_test { + println!("{p:?} IGNORE"); + self.ignore_count += 1; + } else if actual == expected { + println!("{p:?} PASS"); + self.pass_count += 1; + } else { + println!("{p:?} FAIL"); + println!("actual (r-a) = {:?}", actual); + println!("expected (rustc) = {:?}", expected); + self.fail_count += 1; + } + } + + fn report(&mut self) { + println!( + "Pass count = {}, Fail count = {}, Ignore count = {}", + self.pass_count, self.fail_count, self.ignore_count + ); + println!("Testing time and memory = {}", self.stopwatch.elapsed()); + report_metric("rustc failed tests", self.fail_count, "#"); + report_metric("rustc testing time", self.stopwatch.elapsed().time.as_millis() as u64, "ms"); + } +} + +/// These tests break rust-analyzer (either by panicking or hanging) so we should ignore them. +const IGNORED_TESTS: &[&str] = &[ + "trait-with-missing-associated-type-restriction.rs", // #15646 + "trait-with-missing-associated-type-restriction-fixable.rs", // #15646 + "resolve-self-in-impl.rs", + "basic.rs", // ../rust/tests/ui/associated-type-bounds/return-type-notation/basic.rs + "issue-26056.rs", + "float-field.rs", + "invalid_operator_trait.rs", + "type-alias-impl-trait-assoc-dyn.rs", + "deeply-nested_closures.rs", // exponential time + "hang-on-deeply-nested-dyn.rs", // exponential time + "dyn-rpit-and-let.rs", // unexpected free variable with depth `^1.0` with outer binder ^0 + "issue-16098.rs", // Huge recursion limit for macros? + "issue-83471.rs", // crates/hir-ty/src/builder.rs:78:9: assertion failed: self.remaining() > 0 +]; + +const SUPPORTED_DIAGNOSTICS: &[DiagnosticCode] = &[ + DiagnosticCode::RustcHardError("E0023"), + DiagnosticCode::RustcHardError("E0046"), + DiagnosticCode::RustcHardError("E0063"), + DiagnosticCode::RustcHardError("E0107"), + DiagnosticCode::RustcHardError("E0117"), + DiagnosticCode::RustcHardError("E0133"), + DiagnosticCode::RustcHardError("E0210"), + DiagnosticCode::RustcHardError("E0268"), + DiagnosticCode::RustcHardError("E0308"), + DiagnosticCode::RustcHardError("E0384"), + DiagnosticCode::RustcHardError("E0407"), + DiagnosticCode::RustcHardError("E0432"), + DiagnosticCode::RustcHardError("E0451"), + DiagnosticCode::RustcHardError("E0507"), + DiagnosticCode::RustcHardError("E0583"), + DiagnosticCode::RustcHardError("E0559"), + DiagnosticCode::RustcHardError("E0616"), + DiagnosticCode::RustcHardError("E0618"), + DiagnosticCode::RustcHardError("E0624"), + DiagnosticCode::RustcHardError("E0774"), + DiagnosticCode::RustcHardError("E0767"), + DiagnosticCode::RustcHardError("E0777"), +]; + +impl flags::RustcTests { + pub fn run(self) -> Result<()> { + let mut tester = Tester::new()?; + let walk_dir = WalkDir::new(self.rustc_repo.join("tests/ui")); + for i in walk_dir { + let i = i?; + let p = i.into_path(); + if let Some(f) = &self.filter { + if !p.as_os_str().to_string_lossy().contains(f) { + continue; + } + } + if p.extension().map_or(true, |x| x != "rs") { + continue; + } + if let Err(e) = std::panic::catch_unwind({ + let tester = AssertUnwindSafe(&mut tester); + let p = p.clone(); + move || { + let tester = tester; + tester.0.test(p); + } + }) { + println!("panic detected at test {:?}", p); + std::panic::resume_unwind(e); + } + } + tester.report(); + Ok(()) + } +} diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs index 90d1d6b0555..258f7410639 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs @@ -1354,6 +1354,7 @@ impl Config { } } + // FIXME: This should be an AbsolutePathBuf fn target_dir_from_config(&self) -> Option<PathBuf> { self.data.rust_analyzerTargetDir.as_ref().and_then(|target_dir| match target_dir { TargetDirectory::UseSubdirectory(yes) if *yes => { diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs index 57955ebf897..d8a590c8088 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs @@ -12,8 +12,8 @@ use anyhow::Context; use ide::{ AnnotationConfig, AssistKind, AssistResolveStrategy, Cancellable, FilePosition, FileRange, - HoverAction, HoverGotoTypeData, InlayFieldsToResolve, Query, RangeInfo, ReferenceCategory, - Runnable, RunnableKind, SingleResolve, SourceChange, TextEdit, + HoverAction, HoverGotoTypeData, InlayFieldsToResolve, Query, RangeInfo, RangeLimit, + ReferenceCategory, Runnable, RunnableKind, SingleResolve, SourceChange, TextEdit, }; use ide_db::SymbolKind; use lsp_server::ErrorCode; @@ -1409,7 +1409,7 @@ pub(crate) fn handle_inlay_hints( let inlay_hints_config = snap.config.inlay_hints(); Ok(Some( snap.analysis - .inlay_hints(&inlay_hints_config, file_id, Some(range))? + .inlay_hints(&inlay_hints_config, file_id, Some(RangeLimit::Fixed(range)))? .into_iter() .map(|it| { to_proto::inlay_hint( @@ -1440,22 +1440,13 @@ pub(crate) fn handle_inlay_hints_resolve( anyhow::ensure!(snap.file_exists(file_id), "Invalid LSP resolve data"); let line_index = snap.file_line_index(file_id)?; - let range = from_proto::text_range( - &line_index, - lsp_types::Range { start: original_hint.position, end: original_hint.position }, - )?; - let range_start = range.start(); - let range_end = range.end(); - let large_range = TextRange::new( - range_start.checked_sub(1.into()).unwrap_or(range_start), - range_end.checked_add(1.into()).unwrap_or(range_end), - ); + let hint_position = from_proto::offset(&line_index, original_hint.position)?; let mut forced_resolve_inlay_hints_config = snap.config.inlay_hints(); forced_resolve_inlay_hints_config.fields_to_resolve = InlayFieldsToResolve::empty(); let resolve_hints = snap.analysis.inlay_hints( &forced_resolve_inlay_hints_config, file_id, - Some(large_range), + Some(RangeLimit::NearestParent(hint_position)), )?; let mut resolved_hints = resolve_hints diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs index ed2cf07551b..41ff17f5e43 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs @@ -32,7 +32,10 @@ fn integrated_highlighting_benchmark() { let workspace_to_load = project_root(); let file = "./crates/rust-analyzer/src/config.rs"; - let cargo_config = CargoConfig::default(); + let cargo_config = CargoConfig { + sysroot: Some(project_model::RustLibSource::Discover), + ..CargoConfig::default() + }; let load_cargo_config = LoadCargoConfig { load_out_dirs_from_check: true, with_proc_macro_server: ProcMacroServerChoice::None, @@ -85,7 +88,10 @@ fn integrated_completion_benchmark() { let workspace_to_load = project_root(); let file = "./crates/hir/src/lib.rs"; - let cargo_config = CargoConfig::default(); + let cargo_config = CargoConfig { + sysroot: Some(project_model::RustLibSource::Discover), + ..CargoConfig::default() + }; let load_cargo_config = LoadCargoConfig { load_out_dirs_from_check: true, with_proc_macro_server: ProcMacroServerChoice::None, @@ -103,10 +109,46 @@ fn integrated_completion_benchmark() { vfs.file_id(&path).unwrap_or_else(|| panic!("can't find virtual file for {path}")) }; + // kick off parsing and index population + + let completion_offset = { + let _it = stdx::timeit("change"); + let mut text = host.analysis().file_text(file_id).unwrap().to_string(); + let completion_offset = + patch(&mut text, "db.struct_data(self.id)", "sel;\ndb.struct_data(self.id)") + + "sel".len(); + let mut change = Change::new(); + change.change_file(file_id, Some(Arc::from(text))); + host.apply_change(change); + completion_offset + }; + { - let _it = stdx::timeit("initial"); + let _span = profile::cpu_span(); let analysis = host.analysis(); - analysis.highlight_as_html(file_id, false).unwrap(); + let config = CompletionConfig { + enable_postfix_completions: true, + enable_imports_on_the_fly: true, + enable_self_on_the_fly: true, + enable_private_editable: true, + full_function_signatures: false, + callable: Some(CallableSnippets::FillArguments), + snippet_cap: SnippetCap::new(true), + insert_use: InsertUseConfig { + granularity: ImportGranularity::Crate, + prefix_kind: hir::PrefixKind::ByCrate, + enforce_granularity: true, + group: true, + skip_glob_imports: true, + }, + snippets: Vec::new(), + prefer_no_std: false, + prefer_prelude: true, + limit: None, + }; + let position = + FilePosition { file_id, offset: TextSize::try_from(completion_offset).unwrap() }; + analysis.completions(&config, position, None).unwrap(); } profile::init_from("*>5"); @@ -116,8 +158,8 @@ fn integrated_completion_benchmark() { let _it = stdx::timeit("change"); let mut text = host.analysis().file_text(file_id).unwrap().to_string(); let completion_offset = - patch(&mut text, "db.struct_data(self.id)", "sel;\ndb.struct_data(self.id)") - + "sel".len(); + patch(&mut text, "sel;\ndb.struct_data(self.id)", ";sel;\ndb.struct_data(self.id)") + + ";sel".len(); let mut change = Change::new(); change.change_file(file_id, Some(Arc::from(text))); host.apply_change(change); diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/node_ext.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/node_ext.rs index be5b954ad34..f81dff8840c 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/node_ext.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/node_ext.rs @@ -275,10 +275,19 @@ impl ast::Path { successors(Some(self.clone()), ast::Path::qualifier).last().unwrap() } + pub fn first_qualifier(&self) -> Option<ast::Path> { + successors(self.qualifier(), ast::Path::qualifier).last() + } + pub fn first_segment(&self) -> Option<ast::PathSegment> { self.first_qualifier_or_self().segment() } + // FIXME: Check usages of Self::segments, they might be wrong because of the logic of the bloew function + pub fn segments_of_this_path_only_rev(&self) -> impl Iterator<Item = ast::PathSegment> + Clone { + self.qualifiers_and_self().filter_map(|it| it.segment()) + } + pub fn segments(&self) -> impl Iterator<Item = ast::PathSegment> + Clone { successors(self.first_segment(), |p| { p.parent_path().parent_path().and_then(|p| p.segment()) @@ -289,6 +298,10 @@ impl ast::Path { successors(self.qualifier(), |p| p.qualifier()) } + pub fn qualifiers_and_self(&self) -> impl Iterator<Item = ast::Path> + Clone { + successors(Some(self.clone()), |p| p.qualifier()) + } + pub fn top_path(&self) -> ast::Path { let mut this = self.clone(); while let Some(path) = this.parent_path() { diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/traits.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/traits.rs index 3e43df2d0d5..16f7356b1e3 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/traits.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/traits.rs @@ -76,9 +76,6 @@ pub trait HasDocComments: HasAttrs { fn doc_comments(&self) -> DocCommentIter { DocCommentIter { iter: self.syntax().children_with_tokens() } } - fn doc_comments_and_attrs(&self) -> AttrDocCommentIter { - AttrDocCommentIter { iter: self.syntax().children_with_tokens() } - } } impl DocCommentIter { diff --git a/src/tools/rust-analyzer/crates/syntax/src/utils.rs b/src/tools/rust-analyzer/crates/syntax/src/utils.rs index 25f34ea9d39..a38f8b2b55d 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/utils.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/utils.rs @@ -1,48 +1,8 @@ //! A set of utils methods to reuse on other abstraction levels -use itertools::Itertools; - -use crate::{ast, match_ast, AstNode, SyntaxKind}; - -pub fn path_to_string_stripping_turbo_fish(path: &ast::Path) -> String { - path.syntax() - .children() - .filter_map(|node| { - match_ast! { - match node { - ast::PathSegment(it) => { - Some(it.name_ref()?.to_string()) - }, - ast::Path(it) => { - Some(path_to_string_stripping_turbo_fish(&it)) - }, - _ => None, - } - } - }) - .join("::") -} +use crate::SyntaxKind; pub fn is_raw_identifier(name: &str) -> bool { let is_keyword = SyntaxKind::from_keyword(name).is_some(); is_keyword && !matches!(name, "self" | "crate" | "super" | "Self") } - -#[cfg(test)] -mod tests { - use super::path_to_string_stripping_turbo_fish; - use crate::ast::make; - - #[test] - fn turbofishes_are_stripped() { - assert_eq!("Vec", path_to_string_stripping_turbo_fish(&make::path_from_text("Vec::<i32>")),); - assert_eq!( - "Vec::new", - path_to_string_stripping_turbo_fish(&make::path_from_text("Vec::<i32>::new")), - ); - assert_eq!( - "Vec::new", - path_to_string_stripping_turbo_fish(&make::path_from_text("Vec::new()")), - ); - } -} diff --git a/src/tools/rust-analyzer/crates/vfs/src/lib.rs b/src/tools/rust-analyzer/crates/vfs/src/lib.rs index 8ffda5d78d1..ef5b10ee9db 100644 --- a/src/tools/rust-analyzer/crates/vfs/src/lib.rs +++ b/src/tools/rust-analyzer/crates/vfs/src/lib.rs @@ -61,13 +61,17 @@ pub use paths::{AbsPath, AbsPathBuf}; /// Most functions in rust-analyzer use this when they need to refer to a file. #[derive(Copy, Clone, Debug, Ord, PartialOrd, Eq, PartialEq, Hash)] pub struct FileId(u32); +// pub struct FileId(NonMaxU32); impl FileId { /// Think twice about using this outside of tests. If this ends up in a wrong place it will cause panics! + // FIXME: To be removed once we get rid of all `SpanData::DUMMY` usages. pub const BOGUS: FileId = FileId(0xe4e4e); + pub const MAX_FILE_ID: u32 = 0x7fff_ffff; #[inline] - pub fn from_raw(raw: u32) -> FileId { + pub const fn from_raw(raw: u32) -> FileId { + assert!(raw <= Self::MAX_FILE_ID); FileId(raw) } diff --git a/src/tools/rust-analyzer/lib/line-index/Cargo.toml b/src/tools/rust-analyzer/lib/line-index/Cargo.toml index b7b4a01818e..494a7fa979a 100644 --- a/src/tools/rust-analyzer/lib/line-index/Cargo.toml +++ b/src/tools/rust-analyzer/lib/line-index/Cargo.toml @@ -1,6 +1,6 @@ [package] name = "line-index" -version = "0.1.0" +version = "0.1.1" description = "Maps flat `TextSize` offsets to/from `(line, column)` representation." license = "MIT OR Apache-2.0" repository = "https://github.com/rust-lang/rust-analyzer/tree/master/lib/line-index" diff --git a/src/tools/rust-analyzer/xtask/src/flags.rs b/src/tools/rust-analyzer/xtask/src/flags.rs index e52cbfca3e6..092ab8c593c 100644 --- a/src/tools/rust-analyzer/xtask/src/flags.rs +++ b/src/tools/rust-analyzer/xtask/src/flags.rs @@ -110,6 +110,7 @@ pub struct PublishReleaseNotes { #[derive(Debug)] pub enum MeasurementType { Build, + RustcTests, AnalyzeSelf, AnalyzeRipgrep, AnalyzeWebRender, @@ -122,6 +123,7 @@ impl FromStr for MeasurementType { fn from_str(s: &str) -> Result<Self, Self::Err> { match s { "build" => Ok(Self::Build), + "rustc_tests" => Ok(Self::RustcTests), "self" => Ok(Self::AnalyzeSelf), "ripgrep-13.0.0" => Ok(Self::AnalyzeRipgrep), "webrender-2022" => Ok(Self::AnalyzeWebRender), @@ -135,6 +137,7 @@ impl AsRef<str> for MeasurementType { fn as_ref(&self) -> &str { match self { Self::Build => "build", + Self::RustcTests => "rustc_tests", Self::AnalyzeSelf => "self", Self::AnalyzeRipgrep => "ripgrep-13.0.0", Self::AnalyzeWebRender => "webrender-2022", diff --git a/src/tools/rust-analyzer/xtask/src/metrics.rs b/src/tools/rust-analyzer/xtask/src/metrics.rs index 59d41d8e4b8..845928432c4 100644 --- a/src/tools/rust-analyzer/xtask/src/metrics.rs +++ b/src/tools/rust-analyzer/xtask/src/metrics.rs @@ -36,6 +36,9 @@ impl flags::Metrics { MeasurementType::Build => { metrics.measure_build(sh)?; } + MeasurementType::RustcTests => { + metrics.measure_rustc_tests(sh)?; + } MeasurementType::AnalyzeSelf => { metrics.measure_analysis_stats_self(sh)?; } @@ -50,6 +53,7 @@ impl flags::Metrics { } None => { metrics.measure_build(sh)?; + metrics.measure_rustc_tests(sh)?; metrics.measure_analysis_stats_self(sh)?; metrics.measure_analysis_stats(sh, MeasurementType::AnalyzeRipgrep.as_ref())?; metrics.measure_analysis_stats(sh, MeasurementType::AnalyzeWebRender.as_ref())?; @@ -78,6 +82,19 @@ impl Metrics { self.report("build", time.as_millis() as u64, "ms".into()); Ok(()) } + + fn measure_rustc_tests(&mut self, sh: &Shell) -> anyhow::Result<()> { + eprintln!("\nMeasuring rustc tests"); + + cmd!(sh, "git clone --depth=1 https://github.com/rust-lang/rust").run()?; + + let output = cmd!(sh, "./target/release/rust-analyzer rustc-tests ./rust").read()?; + for (metric, value, unit) in parse_metrics(&output) { + self.report(metric, value, unit.into()); + } + Ok(()) + } + fn measure_analysis_stats_self(&mut self, sh: &Shell) -> anyhow::Result<()> { self.measure_analysis_stats_path(sh, "self", ".") } diff --git a/src/tools/rustfmt/src/closures.rs b/src/tools/rustfmt/src/closures.rs index f698f494ae5..5bf29441b54 100644 --- a/src/tools/rustfmt/src/closures.rs +++ b/src/tools/rustfmt/src/closures.rs @@ -448,7 +448,7 @@ fn is_block_closure_forced(context: &RewriteContext<'_>, expr: &ast::Expr) -> bo fn is_block_closure_forced_inner(expr: &ast::Expr, version: Version) -> bool { match expr.kind { - ast::ExprKind::If(..) | ast::ExprKind::While(..) | ast::ExprKind::ForLoop(..) => true, + ast::ExprKind::If(..) | ast::ExprKind::While(..) | ast::ExprKind::ForLoop { .. } => true, ast::ExprKind::Loop(..) if version == Version::Two => true, ast::ExprKind::AddrOf(_, _, ref expr) | ast::ExprKind::Try(ref expr) @@ -473,7 +473,7 @@ fn expr_requires_semi_to_be_stmt(e: &ast::Expr) -> bool { | ast::ExprKind::Block(..) | ast::ExprKind::While(..) | ast::ExprKind::Loop(..) - | ast::ExprKind::ForLoop(..) + | ast::ExprKind::ForLoop { .. } | ast::ExprKind::TryBlock(..) => false, _ => true, } diff --git a/src/tools/rustfmt/src/expr.rs b/src/tools/rustfmt/src/expr.rs index a68bd6694ba..7808f891336 100644 --- a/src/tools/rustfmt/src/expr.rs +++ b/src/tools/rustfmt/src/expr.rs @@ -3,7 +3,7 @@ use std::cmp::min; use itertools::Itertools; use rustc_ast::token::{Delimiter, Lit, LitKind}; -use rustc_ast::{ast, ptr, token}; +use rustc_ast::{ast, ptr, token, ForLoopKind}; use rustc_span::{BytePos, Span}; use crate::chains::rewrite_chain; @@ -134,7 +134,7 @@ pub(crate) fn format_expr( } ast::ExprKind::Let(ref pat, ref expr, _span, _) => rewrite_let(context, shape, pat, expr), ast::ExprKind::If(..) - | ast::ExprKind::ForLoop(..) + | ast::ExprKind::ForLoop { .. } | ast::ExprKind::Loop(..) | ast::ExprKind::While(..) => to_control_flow(expr, expr_type) .and_then(|control_flow| control_flow.rewrite(context, shape)), @@ -682,9 +682,15 @@ fn to_control_flow(expr: &ast::Expr, expr_type: ExprType) -> Option<ControlFlow< expr.span, )) } - ast::ExprKind::ForLoop(ref pat, ref cond, ref block, label) => { - Some(ControlFlow::new_for(pat, cond, block, label, expr.span)) - } + ast::ExprKind::ForLoop { + ref pat, + ref iter, + ref body, + label, + kind, + } => Some(ControlFlow::new_for( + pat, iter, body, label, expr.span, kind, + )), ast::ExprKind::Loop(ref block, label, _) => { Some(ControlFlow::new_loop(block, label, expr.span)) } @@ -771,6 +777,7 @@ impl<'a> ControlFlow<'a> { block: &'a ast::Block, label: Option<ast::Label>, span: Span, + kind: ForLoopKind, ) -> ControlFlow<'a> { ControlFlow { cond: Some(cond), @@ -778,7 +785,10 @@ impl<'a> ControlFlow<'a> { else_block: None, label, pat: Some(pat), - keyword: "for", + keyword: match kind { + ForLoopKind::For => "for", + ForLoopKind::ForAwait => "for await", + }, matcher: "", connector: " in", allow_single_line: false, @@ -1364,7 +1374,7 @@ pub(crate) fn can_be_overflowed_expr( || context.config.overflow_delimited_expr() } ast::ExprKind::If(..) - | ast::ExprKind::ForLoop(..) + | ast::ExprKind::ForLoop { .. } | ast::ExprKind::Loop(..) | ast::ExprKind::While(..) => { context.config.combine_control_expr() && context.use_block_indent() && args_len == 1 diff --git a/src/tools/rustfmt/src/items.rs b/src/tools/rustfmt/src/items.rs index a4256730f19..6fb69d6b883 100644 --- a/src/tools/rustfmt/src/items.rs +++ b/src/tools/rustfmt/src/items.rs @@ -666,7 +666,7 @@ impl<'a> FmtVisitor<'a> { let span = mk_sp(lo, field.span.lo()); let variant_body = match field.data { - ast::VariantData::Tuple(..) | ast::VariantData::Struct(..) => format_struct( + ast::VariantData::Tuple(..) | ast::VariantData::Struct { .. } => format_struct( &context, &StructParts::from_variant(field, &context), self.block_indent, @@ -1092,7 +1092,7 @@ fn enum_variant_span(variant: &ast::Variant, context: &RewriteContext<'_>) -> Sp if let Some(ref anon_const) = variant.disr_expr { let span_before_consts = variant.span.until(anon_const.value.span); let hi = match &variant.data { - Struct(..) => context + Struct { .. } => context .snippet_provider .span_after_last(span_before_consts, "}"), Tuple(..) => context @@ -1112,12 +1112,12 @@ fn format_struct( offset: Indent, one_line_width: Option<usize>, ) -> Option<String> { - match *struct_parts.def { + match struct_parts.def { ast::VariantData::Unit(..) => format_unit_struct(context, struct_parts, offset), - ast::VariantData::Tuple(ref fields, _) => { + ast::VariantData::Tuple(fields, _) => { format_tuple_struct(context, struct_parts, fields, offset) } - ast::VariantData::Struct(ref fields, _) => { + ast::VariantData::Struct { fields, .. } => { format_struct_struct(context, struct_parts, fields, offset, one_line_width) } } diff --git a/src/tools/rustfmt/src/matches.rs b/src/tools/rustfmt/src/matches.rs index ef509b56837..5a00984d4c0 100644 --- a/src/tools/rustfmt/src/matches.rs +++ b/src/tools/rustfmt/src/matches.rs @@ -591,7 +591,7 @@ fn can_flatten_block_around_this(body: &ast::Expr) -> bool { ast::ExprKind::If(..) => false, // We do not allow collapsing a block around expression with condition // to avoid it being cluttered with match arm. - ast::ExprKind::ForLoop(..) | ast::ExprKind::While(..) => false, + ast::ExprKind::ForLoop { .. } | ast::ExprKind::While(..) => false, ast::ExprKind::Loop(..) | ast::ExprKind::Match(..) | ast::ExprKind::Block(..) diff --git a/src/tools/rustfmt/src/overflow.rs b/src/tools/rustfmt/src/overflow.rs index d81bf24dbd1..f46583b1c89 100644 --- a/src/tools/rustfmt/src/overflow.rs +++ b/src/tools/rustfmt/src/overflow.rs @@ -409,7 +409,7 @@ impl<'a> Context<'a> { // When overflowing the expressions which consists of a control flow // expression, avoid condition to use multi line. ast::ExprKind::If(..) - | ast::ExprKind::ForLoop(..) + | ast::ExprKind::ForLoop { .. } | ast::ExprKind::Loop(..) | ast::ExprKind::While(..) | ast::ExprKind::Match(..) => { diff --git a/src/tools/rustfmt/src/parse/macros/cfg_if.rs b/src/tools/rustfmt/src/parse/macros/cfg_if.rs index cbc4c90b8f9..bafef7b0f46 100644 --- a/src/tools/rustfmt/src/parse/macros/cfg_if.rs +++ b/src/tools/rustfmt/src/parse/macros/cfg_if.rs @@ -67,7 +67,7 @@ fn parse_cfg_if_inner<'a>( Ok(None) => continue, Err(err) => { err.cancel(); - parser.sess.span_diagnostic.reset_err_count(); + parser.sess.dcx.reset_err_count(); return Err( "Expected item inside cfg_if block, but failed to parse it as an item", ); diff --git a/src/tools/rustfmt/src/parse/macros/lazy_static.rs b/src/tools/rustfmt/src/parse/macros/lazy_static.rs index a8c2feec453..8b1dc6694d6 100644 --- a/src/tools/rustfmt/src/parse/macros/lazy_static.rs +++ b/src/tools/rustfmt/src/parse/macros/lazy_static.rs @@ -16,8 +16,8 @@ pub(crate) fn parse_lazy_static( ($method:ident $(,)* $($arg:expr),* $(,)*) => { match parser.$method($($arg,)*) { Ok(val) => { - if parser.sess.span_diagnostic.has_errors().is_some() { - parser.sess.span_diagnostic.reset_err_count(); + if parser.sess.dcx.has_errors().is_some() { + parser.sess.dcx.reset_err_count(); return None; } else { val @@ -25,7 +25,7 @@ pub(crate) fn parse_lazy_static( } Err(err) => { err.cancel(); - parser.sess.span_diagnostic.reset_err_count(); + parser.sess.dcx.reset_err_count(); return None; } } diff --git a/src/tools/rustfmt/src/parse/macros/mod.rs b/src/tools/rustfmt/src/parse/macros/mod.rs index 7a802f7a88e..2dd2622174f 100644 --- a/src/tools/rustfmt/src/parse/macros/mod.rs +++ b/src/tools/rustfmt/src/parse/macros/mod.rs @@ -28,8 +28,8 @@ fn parse_macro_arg<'a, 'b: 'a>(parser: &'a mut Parser<'b>) -> Option<MacroArg> { let mut cloned_parser = (*parser).clone(); match $parser(&mut cloned_parser) { Ok(x) => { - if parser.sess.span_diagnostic.has_errors().is_some() { - parser.sess.span_diagnostic.reset_err_count(); + if parser.sess.dcx.has_errors().is_some() { + parser.sess.dcx.reset_err_count(); } else { // Parsing succeeded. *parser = cloned_parser; @@ -38,7 +38,7 @@ fn parse_macro_arg<'a, 'b: 'a>(parser: &'a mut Parser<'b>) -> Option<MacroArg> { } Err(e) => { e.cancel(); - parser.sess.span_diagnostic.reset_err_count(); + parser.sess.dcx.reset_err_count(); } } }; diff --git a/src/tools/rustfmt/src/parse/session.rs b/src/tools/rustfmt/src/parse/session.rs index 06f9c4c6243..8303c03e1eb 100644 --- a/src/tools/rustfmt/src/parse/session.rs +++ b/src/tools/rustfmt/src/parse/session.rs @@ -4,7 +4,7 @@ use std::sync::atomic::{AtomicBool, Ordering}; use rustc_data_structures::sync::{IntoDynSyncSend, Lrc}; use rustc_errors::emitter::{DynEmitter, Emitter, EmitterWriter}; use rustc_errors::translation::Translate; -use rustc_errors::{ColorConfig, Diagnostic, Handler, Level as DiagnosticLevel}; +use rustc_errors::{ColorConfig, DiagCtxt, Diagnostic, Level as DiagnosticLevel}; use rustc_session::parse::ParseSess as RawParseSess; use rustc_span::{ source_map::{FilePathMapping, SourceMap}, @@ -118,13 +118,13 @@ impl From<Color> for ColorConfig { } } -fn default_handler( +fn default_dcx( source_map: Lrc<SourceMap>, ignore_path_set: Lrc<IgnorePathSet>, can_reset: Lrc<AtomicBool>, hide_parse_errors: bool, color: Color, -) -> Handler { +) -> DiagCtxt { let supports_color = term::stderr().map_or(false, |term| term.supports_color()); let emit_color = if supports_color { ColorConfig::from(color) @@ -141,7 +141,7 @@ fn default_handler( ); Box::new(EmitterWriter::stderr(emit_color, fallback_bundle).sm(Some(source_map.clone()))) }; - Handler::with_emitter(Box::new(SilentOnIgnoredFilesEmitter { + DiagCtxt::with_emitter(Box::new(SilentOnIgnoredFilesEmitter { has_non_ignorable_parser_errors: false, source_map, emitter, @@ -159,14 +159,14 @@ impl ParseSess { let source_map = Lrc::new(SourceMap::new(FilePathMapping::empty())); let can_reset_errors = Lrc::new(AtomicBool::new(false)); - let handler = default_handler( + let dcx = default_dcx( Lrc::clone(&source_map), Lrc::clone(&ignore_path_set), Lrc::clone(&can_reset_errors), config.hide_parse_errors(), config.color(), ); - let parse_sess = RawParseSess::with_span_handler(handler, source_map); + let parse_sess = RawParseSess::with_dcx(dcx, source_map); Ok(ParseSess { parse_sess, @@ -218,7 +218,7 @@ impl ParseSess { } pub(crate) fn set_silent_emitter(&mut self) { - self.parse_sess.span_diagnostic = Handler::with_emitter(silent_emitter()); + self.parse_sess.dcx = DiagCtxt::with_emitter(silent_emitter()); } pub(crate) fn span_to_filename(&self, span: Span) -> FileName { @@ -285,7 +285,7 @@ impl ParseSess { impl ParseSess { pub(super) fn emit_diagnostics(&self, diagnostics: Vec<Diagnostic>) { for diagnostic in diagnostics { - self.parse_sess.span_diagnostic.emit_diagnostic(diagnostic); + self.parse_sess.dcx.emit_diagnostic(diagnostic); } } @@ -294,11 +294,11 @@ impl ParseSess { } pub(super) fn has_errors(&self) -> bool { - self.parse_sess.span_diagnostic.has_errors().is_some() + self.parse_sess.dcx.has_errors().is_some() } pub(super) fn reset_errors(&self) { - self.parse_sess.span_diagnostic.reset_err_count(); + self.parse_sess.dcx.reset_err_count(); } } @@ -370,7 +370,7 @@ mod tests { fn build_diagnostic(level: DiagnosticLevel, span: Option<MultiSpan>) -> Diagnostic { let mut diag = Diagnostic::new(level, ""); - diag.message.clear(); + diag.messages.clear(); if let Some(span) = span { diag.span = span; } diff --git a/src/tools/rustfmt/src/patterns.rs b/src/tools/rustfmt/src/patterns.rs index 8504999b8ff..0fa6edaa5d7 100644 --- a/src/tools/rustfmt/src/patterns.rs +++ b/src/tools/rustfmt/src/patterns.rs @@ -259,9 +259,15 @@ impl Rewrite for Pat { None, None, ), - PatKind::Struct(ref qself, ref path, ref fields, ellipsis) => { - rewrite_struct_pat(qself, path, fields, ellipsis, self.span, context, shape) - } + PatKind::Struct(ref qself, ref path, ref fields, rest) => rewrite_struct_pat( + qself, + path, + fields, + rest == ast::PatFieldsRest::Rest, + self.span, + context, + shape, + ), PatKind::MacCall(ref mac) => { rewrite_macro(mac, None, context, shape, MacroPosition::Pat) } diff --git a/src/tools/rustfmt/src/types.rs b/src/tools/rustfmt/src/types.rs index a5a4244903c..cd2582e66be 100644 --- a/src/tools/rustfmt/src/types.rs +++ b/src/tools/rustfmt/src/types.rs @@ -537,28 +537,19 @@ impl Rewrite for ast::Lifetime { impl Rewrite for ast::GenericBound { fn rewrite(&self, context: &RewriteContext<'_>, shape: Shape) -> Option<String> { match *self { - ast::GenericBound::Trait(ref poly_trait_ref, trait_bound_modifier) => { + ast::GenericBound::Trait(ref poly_trait_ref, modifiers) => { let snippet = context.snippet(self.span()); let has_paren = snippet.starts_with('(') && snippet.ends_with(')'); - let rewrite = match trait_bound_modifier { - ast::TraitBoundModifier::None => poly_trait_ref.rewrite(context, shape), - ast::TraitBoundModifier::Maybe => poly_trait_ref - .rewrite(context, shape.offset_left(1)?) - .map(|s| format!("?{}", s)), - ast::TraitBoundModifier::MaybeConst(_) => poly_trait_ref - .rewrite(context, shape.offset_left(7)?) - .map(|s| format!("~const {}", s)), - ast::TraitBoundModifier::MaybeConstMaybe => poly_trait_ref - .rewrite(context, shape.offset_left(8)?) - .map(|s| format!("~const ?{}", s)), - ast::TraitBoundModifier::Negative => poly_trait_ref - .rewrite(context, shape.offset_left(1)?) - .map(|s| format!("!{}", s)), - ast::TraitBoundModifier::MaybeConstNegative => poly_trait_ref - .rewrite(context, shape.offset_left(8)?) - .map(|s| format!("~const !{}", s)), - }; - rewrite.map(|s| if has_paren { format!("({})", s) } else { s }) + let mut constness = modifiers.constness.as_str().to_string(); + if !constness.is_empty() { + constness.push(' '); + } + let polarity = modifiers.polarity.as_str(); + let shape = shape.offset_left(constness.len() + polarity.len())?; + poly_trait_ref + .rewrite(context, shape) + .map(|s| format!("{constness}{polarity}{s}")) + .map(|s| if has_paren { format!("({})", s) } else { s }) } ast::GenericBound::Outlives(ref lifetime) => lifetime.rewrite(context, shape), } diff --git a/src/tools/rustfmt/src/utils.rs b/src/tools/rustfmt/src/utils.rs index 7d7bbf11529..642b6603b1e 100644 --- a/src/tools/rustfmt/src/utils.rs +++ b/src/tools/rustfmt/src/utils.rs @@ -295,7 +295,7 @@ pub(crate) fn semicolon_for_stmt( ) -> bool { match stmt.kind { ast::StmtKind::Semi(ref expr) => match expr.kind { - ast::ExprKind::While(..) | ast::ExprKind::Loop(..) | ast::ExprKind::ForLoop(..) => { + ast::ExprKind::While(..) | ast::ExprKind::Loop(..) | ast::ExprKind::ForLoop { .. } => { false } ast::ExprKind::Break(..) | ast::ExprKind::Continue(..) | ast::ExprKind::Ret(..) => { @@ -476,7 +476,7 @@ pub(crate) fn is_block_expr(context: &RewriteContext<'_>, expr: &ast::Expr, repr | ast::ExprKind::ConstBlock(..) | ast::ExprKind::Gen(..) | ast::ExprKind::Loop(..) - | ast::ExprKind::ForLoop(..) + | ast::ExprKind::ForLoop { .. } | ast::ExprKind::TryBlock(..) | ast::ExprKind::Match(..) => repr.contains('\n'), ast::ExprKind::Paren(ref expr) diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs index 3bfe811b58e..3c00027b9fd 100644 --- a/src/tools/tidy/src/deps.rs +++ b/src/tools/tidy/src/deps.rs @@ -357,6 +357,7 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[ "tracing-tree", "twox-hash", "type-map", + "typed-arena", "typenum", "unic-langid", "unic-langid-impl", diff --git a/src/tools/tidy/src/error_codes.rs b/src/tools/tidy/src/error_codes.rs index 3e67bac499b..094efa981d3 100644 --- a/src/tools/tidy/src/error_codes.rs +++ b/src/tools/tidy/src/error_codes.rs @@ -27,7 +27,7 @@ const ERROR_DOCS_PATH: &str = "compiler/rustc_error_codes/src/error_codes/"; const ERROR_TESTS_PATH: &str = "tests/ui/error-codes/"; // Error codes that (for some reason) can't have a doctest in their explanation. Error codes are still expected to provide a code example, even if untested. -const IGNORE_DOCTEST_CHECK: &[&str] = &["E0464", "E0570", "E0601", "E0602", "E0640", "E0717"]; +const IGNORE_DOCTEST_CHECK: &[&str] = &["E0464", "E0570", "E0601", "E0602", "E0717"]; // Error codes that don't yet have a UI test. This list will eventually be removed. const IGNORE_UI_TEST_CHECK: &[&str] = diff --git a/src/tools/tidy/src/style.rs b/src/tools/tidy/src/style.rs index cb40c6e3a38..8b0e80a94b0 100644 --- a/src/tools/tidy/src/style.rs +++ b/src/tools/tidy/src/style.rs @@ -494,7 +494,7 @@ pub fn check(path: &Path, bad: &mut bool) { let mut err = |_| { tidy_error!(bad, "{}: leading newline", file.display()); }; - suppressible_tidy_err!(err, skip_leading_newlines, "mising leading newline"); + suppressible_tidy_err!(err, skip_leading_newlines, "missing leading newline"); } let mut err = |msg: &str| { tidy_error!(bad, "{}: {}", file.display(), msg); diff --git a/src/version b/src/version index 32a6ce3c719..79e15fd4937 100644 --- a/src/version +++ b/src/version @@ -1 +1 @@ -1.76.0 +1.77.0 diff --git a/tests/codegen/issues/issue-86106.rs b/tests/codegen/issues/issue-86106.rs index 15aef344ac0..5f71d46fb20 100644 --- a/tests/codegen/issues/issue-86106.rs +++ b/tests/codegen/issues/issue-86106.rs @@ -9,9 +9,12 @@ // CHECK-LABEL: define {{(dso_local )?}}void @string_new #[no_mangle] pub fn string_new() -> String { - // CHECK: store ptr inttoptr + // CHECK-NOT: load i8 + // CHECK: store i{{32|64}} // CHECK-NEXT: getelementptr - // CHECK-NEXT: call void @llvm.memset + // CHECK-NEXT: store ptr + // CHECK-NEXT: getelementptr + // CHECK-NEXT: store i{{32|64}} // CHECK-NEXT: ret void String::new() } @@ -19,9 +22,12 @@ pub fn string_new() -> String { // CHECK-LABEL: define {{(dso_local )?}}void @empty_to_string #[no_mangle] pub fn empty_to_string() -> String { - // CHECK: store ptr inttoptr + // CHECK-NOT: load i8 + // CHECK: store i{{32|64}} + // CHECK-NEXT: getelementptr + // CHECK-NEXT: store ptr // CHECK-NEXT: getelementptr - // CHECK-NEXT: call void @llvm.memset + // CHECK-NEXT: store i{{32|64}} // CHECK-NEXT: ret void "".to_string() } @@ -32,9 +38,12 @@ pub fn empty_to_string() -> String { // CHECK-LABEL: @empty_vec #[no_mangle] pub fn empty_vec() -> Vec<u8> { - // CHECK: store ptr inttoptr + // CHECK: store i{{32|64}} + // CHECK-NOT: load i8 // CHECK-NEXT: getelementptr - // CHECK-NEXT: call void @llvm.memset + // CHECK-NEXT: store ptr + // CHECK-NEXT: getelementptr + // CHECK-NEXT: store i{{32|64}} // CHECK-NEXT: ret void vec![] } @@ -42,9 +51,12 @@ pub fn empty_vec() -> Vec<u8> { // CHECK-LABEL: @empty_vec_clone #[no_mangle] pub fn empty_vec_clone() -> Vec<u8> { - // CHECK: store ptr inttoptr + // CHECK: store i{{32|64}} + // CHECK-NOT: load i8 + // CHECK-NEXT: getelementptr + // CHECK-NEXT: store ptr // CHECK-NEXT: getelementptr - // CHECK-NEXT: call void @llvm.memset + // CHECK-NEXT: store i{{32|64}} // CHECK-NEXT: ret void vec![].clone() } diff --git a/tests/codegen/overaligned-constant.rs b/tests/codegen/overaligned-constant.rs new file mode 100644 index 00000000000..89e49738991 --- /dev/null +++ b/tests/codegen/overaligned-constant.rs @@ -0,0 +1,36 @@ +// GVN may create indirect constants with higher alignment than their type requires. Verify that we +// do not ICE during codegen, and that the LLVM constant has the higher alignment. +// +// compile-flags: -Zmir-opt-level=0 -Zmir-enable-passes=+GVN +// compile-flags: -Cno-prepopulate-passes +// only-64bit + +struct S(i32); + +struct SmallStruct(f32, Option<S>, &'static [f32]); + +// CHECK: @0 = private unnamed_addr constant +// CHECK-SAME: , align 8 + +fn main() { + // CHECK-LABEL: @_ZN20overaligned_constant4main + // CHECK: [[full:%_.*]] = alloca %SmallStruct, align 8 + // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[full]], ptr align 8 @0, i64 32, i1 false) + // CHECK: %b.0 = load i32, ptr @0, align 4, + // CHECK: %b.1 = load i32, ptr getelementptr inbounds ({{.*}}), align 4 + let mut s = S(1); + + s.0 = 3; + + // SMALL_VAL corresponds to a MIR allocation with alignment 8. + const SMALL_VAL: SmallStruct = SmallStruct(4., Some(S(1)), &[]); + + // In pre-codegen MIR: + // `a` is a scalar 4. + // `b` is an indirect constant at `SMALL_VAL`'s alloc with 0 offset. + // `c` is the empty slice. + // + // As a consequence, during codegen, we create a LLVM allocation for `SMALL_VAL`, with + // alignment 8, but only use the `Option<S>` field, at offset 0 with alignment 4. + let SmallStruct(a, b, c) = SMALL_VAL; +} diff --git a/tests/coverage/async_block.cov-map b/tests/coverage/async_block.cov-map new file mode 100644 index 00000000000..104133f6e67 --- /dev/null +++ b/tests/coverage/async_block.cov-map @@ -0,0 +1,32 @@ +Function name: async_block::main +Raw bytes (38): 0x[01, 01, 02, 01, 05, 03, 05, 06, 01, 05, 01, 00, 0b, 05, 01, 09, 00, 0a, 03, 00, 0e, 00, 13, 05, 00, 14, 01, 16, 05, 07, 0a, 02, 06, 06, 03, 01, 00, 02] +Number of files: 1 +- file 0 => global file 1 +Number of expressions: 2 +- expression 0 operands: lhs = Counter(0), rhs = Counter(1) +- expression 1 operands: lhs = Expression(0, Add), rhs = Counter(1) +Number of file 0 mappings: 6 +- Code(Counter(0)) at (prev + 5, 1) to (start + 0, 11) +- Code(Counter(1)) at (prev + 1, 9) to (start + 0, 10) +- Code(Expression(0, Add)) at (prev + 0, 14) to (start + 0, 19) + = (c0 + c1) +- Code(Counter(1)) at (prev + 0, 20) to (start + 1, 22) +- Code(Counter(1)) at (prev + 7, 10) to (start + 2, 6) +- Code(Expression(1, Sub)) at (prev + 3, 1) to (start + 0, 2) + = ((c0 + c1) - c1) + +Function name: async_block::main::{closure#0} +Raw bytes (28): 0x[01, 01, 02, 01, 05, 05, 02, 04, 01, 07, 1c, 01, 17, 05, 01, 18, 02, 0e, 02, 02, 14, 02, 0e, 07, 03, 09, 00, 0a] +Number of files: 1 +- file 0 => global file 1 +Number of expressions: 2 +- expression 0 operands: lhs = Counter(0), rhs = Counter(1) +- expression 1 operands: lhs = Counter(1), rhs = Expression(0, Sub) +Number of file 0 mappings: 4 +- Code(Counter(0)) at (prev + 7, 28) to (start + 1, 23) +- Code(Counter(1)) at (prev + 1, 24) to (start + 2, 14) +- Code(Expression(0, Sub)) at (prev + 2, 20) to (start + 2, 14) + = (c0 - c1) +- Code(Expression(1, Add)) at (prev + 3, 9) to (start + 0, 10) + = (c1 + (c0 - c1)) + diff --git a/tests/coverage/async_block.coverage b/tests/coverage/async_block.coverage new file mode 100644 index 00000000000..297397ca26c --- /dev/null +++ b/tests/coverage/async_block.coverage @@ -0,0 +1,37 @@ + LL| |#![feature(coverage_attribute)] + LL| |#![feature(noop_waker)] + LL| |// edition: 2021 + LL| | + LL| 1|fn main() { + LL| 17| for i in 0..16 { + ^16 + LL| 16| let future = async { + LL| 16| if i >= 12 { + LL| 4| println!("big"); + LL| 12| } else { + LL| 12| println!("small"); + LL| 12| } + LL| 16| }; + LL| 16| executor::block_on(future); + LL| 16| } + LL| 1|} + LL| | + LL| |mod executor { + LL| | use core::future::Future; + LL| | use core::pin::pin; + LL| | use core::task::{Context, Poll, Waker}; + LL| | + LL| | #[coverage(off)] + LL| | pub fn block_on<F: Future>(mut future: F) -> F::Output { + LL| | let mut future = pin!(future); + LL| | let waker = Waker::noop(); + LL| | let mut context = Context::from_waker(&waker); + LL| | + LL| | loop { + LL| | if let Poll::Ready(val) = future.as_mut().poll(&mut context) { + LL| | break val; + LL| | } + LL| | } + LL| | } + LL| |} + diff --git a/tests/coverage/async_block.rs b/tests/coverage/async_block.rs new file mode 100644 index 00000000000..9d8647bf1f2 --- /dev/null +++ b/tests/coverage/async_block.rs @@ -0,0 +1,35 @@ +#![feature(coverage_attribute)] +#![feature(noop_waker)] +// edition: 2021 + +fn main() { + for i in 0..16 { + let future = async { + if i >= 12 { + println!("big"); + } else { + println!("small"); + } + }; + executor::block_on(future); + } +} + +mod executor { + use core::future::Future; + use core::pin::pin; + use core::task::{Context, Poll, Waker}; + + #[coverage(off)] + pub fn block_on<F: Future>(mut future: F) -> F::Output { + let mut future = pin!(future); + let waker = Waker::noop(); + let mut context = Context::from_waker(&waker); + + loop { + if let Poll::Ready(val) = future.as_mut().poll(&mut context) { + break val; + } + } + } +} diff --git a/tests/coverage/no_spans_if_not.cov-map b/tests/coverage/no_spans_if_not.cov-map new file mode 100644 index 00000000000..5277267ec1b --- /dev/null +++ b/tests/coverage/no_spans_if_not.cov-map @@ -0,0 +1,8 @@ +Function name: no_spans_if_not::main +Raw bytes (9): 0x[01, 01, 00, 01, 01, 0b, 01, 02, 02] +Number of files: 1 +- file 0 => global file 1 +Number of expressions: 0 +Number of file 0 mappings: 1 +- Code(Counter(0)) at (prev + 11, 1) to (start + 2, 2) + diff --git a/tests/coverage/no_spans_if_not.coverage b/tests/coverage/no_spans_if_not.coverage new file mode 100644 index 00000000000..1b6bbc75a04 --- /dev/null +++ b/tests/coverage/no_spans_if_not.coverage @@ -0,0 +1,30 @@ + LL| |// edition: 2021 + LL| | + LL| |// If the span extractor can't find any relevant spans for a function, + LL| |// but the function contains coverage span-marker statements (e.g. inserted + LL| |// for `if !`), coverage codegen may think that it is instrumented and + LL| |// consequently complain that it has no spans. + LL| |// + LL| |// Regression test for <https://github.com/rust-lang/rust/issues/118850>, + LL| |// "A used function should have had coverage mapping data but did not". + LL| | + LL| 1|fn main() { + LL| 1| affected_function(); + LL| 1|} + LL| | + LL| |macro_rules! macro_that_defines_a_function { + LL| | (fn $name:ident () $body:tt) => { + LL| | fn $name () $body + LL| | } + LL| |} + LL| | + LL| |macro_that_defines_a_function! { + LL| | fn affected_function() { + LL| | if !false { + LL| | () + LL| | } else { + LL| | () + LL| | } + LL| | } + LL| |} + diff --git a/tests/coverage/no_spans_if_not.rs b/tests/coverage/no_spans_if_not.rs new file mode 100644 index 00000000000..2bbdc11cd5e --- /dev/null +++ b/tests/coverage/no_spans_if_not.rs @@ -0,0 +1,29 @@ +// edition: 2021 + +// If the span extractor can't find any relevant spans for a function, +// but the function contains coverage span-marker statements (e.g. inserted +// for `if !`), coverage codegen may think that it is instrumented and +// consequently complain that it has no spans. +// +// Regression test for <https://github.com/rust-lang/rust/issues/118850>, +// "A used function should have had coverage mapping data but did not". + +fn main() { + affected_function(); +} + +macro_rules! macro_that_defines_a_function { + (fn $name:ident () $body:tt) => { + fn $name () $body + } +} + +macro_that_defines_a_function! { + fn affected_function() { + if !false { + () + } else { + () + } + } +} diff --git a/tests/incremental/thinlto/cgu_invalidated_via_import.rs b/tests/incremental/thinlto/cgu_invalidated_via_import.rs index e0cd385eff3..a81b4f7e9d0 100644 --- a/tests/incremental/thinlto/cgu_invalidated_via_import.rs +++ b/tests/incremental/thinlto/cgu_invalidated_via_import.rs @@ -14,14 +14,14 @@ kind="no")] #![rustc_expected_cgu_reuse(module="cgu_invalidated_via_import-foo", cfg="cfail3", - kind="post-lto")] + kind="pre-lto")] // Should be "post-lto", see issue #119076 #![rustc_expected_cgu_reuse(module="cgu_invalidated_via_import-bar", cfg="cfail2", kind="pre-lto")] #![rustc_expected_cgu_reuse(module="cgu_invalidated_via_import-bar", cfg="cfail3", - kind="post-lto")] + kind="pre-lto")] // Should be "post-lto", see issue #119076 mod foo { diff --git a/tests/incremental/thinlto/cgu_keeps_identical_fn.rs b/tests/incremental/thinlto/cgu_keeps_identical_fn.rs index 781aae578d4..9e840f67ab2 100644 --- a/tests/incremental/thinlto/cgu_keeps_identical_fn.rs +++ b/tests/incremental/thinlto/cgu_keeps_identical_fn.rs @@ -9,21 +9,25 @@ #![feature(rustc_attrs)] #![crate_type = "rlib"] -#![rustc_expected_cgu_reuse(module = "cgu_keeps_identical_fn-foo", cfg = "cfail2", kind = "no")] +#![rustc_expected_cgu_reuse( + module = "cgu_keeps_identical_fn-foo", + cfg = "cfail2", + kind = "pre-lto" +)] #![rustc_expected_cgu_reuse( module = "cgu_keeps_identical_fn-foo", cfg = "cfail3", - kind = "post-lto" + kind = "pre-lto" // Should be "post-lto", see issue #119076 )] #![rustc_expected_cgu_reuse( module = "cgu_keeps_identical_fn-bar", cfg = "cfail2", - kind = "post-lto" + kind = "pre-lto" // Should be "post-lto", see issue #119076 )] #![rustc_expected_cgu_reuse( module = "cgu_keeps_identical_fn-bar", cfg = "cfail3", - kind = "post-lto" + kind = "pre-lto" // Should be "post-lto", see issue #119076 )] mod foo { diff --git a/tests/incremental/thinlto/independent_cgus_dont_affect_each_other.rs b/tests/incremental/thinlto/independent_cgus_dont_affect_each_other.rs index 8aa036ec978..45eb1382874 100644 --- a/tests/incremental/thinlto/independent_cgus_dont_affect_each_other.rs +++ b/tests/incremental/thinlto/independent_cgus_dont_affect_each_other.rs @@ -13,21 +13,21 @@ kind="no")] #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-foo", cfg="cfail3", - kind="post-lto")] + kind="pre-lto")] // Should be "post-lto", see issue #119076 #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-bar", cfg="cfail2", kind="pre-lto")] #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-bar", cfg="cfail3", - kind="post-lto")] + kind="pre-lto")] // Should be "post-lto", see issue #119076 #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-baz", cfg="cfail2", - kind="post-lto")] + kind="pre-lto")] // Should be "post-lto", see issue #119076 #![rustc_expected_cgu_reuse(module="independent_cgus_dont_affect_each_other-baz", cfg="cfail3", - kind="post-lto")] + kind="pre-lto")] // Should be "post-lto", see issue #119076 mod foo { #[cfg(cfail1)] diff --git a/tests/mir-opt/exponential_or.match_tuple.SimplifyCfg-initial.after.mir b/tests/mir-opt/exponential_or.match_tuple.SimplifyCfg-initial.after.mir index b04e09e88b8..596dcef85fd 100644 --- a/tests/mir-opt/exponential_or.match_tuple.SimplifyCfg-initial.after.mir +++ b/tests/mir-opt/exponential_or.match_tuple.SimplifyCfg-initial.after.mir @@ -38,22 +38,22 @@ fn match_tuple(_1: (u32, bool, Option<i32>, u32)) -> u32 { bb4: { _5 = Le(const 6_u32, (_1.3: u32)); - switchInt(move _5) -> [0: bb6, otherwise: bb5]; + switchInt(move _5) -> [0: bb5, otherwise: bb7]; } bb5: { - _6 = Le((_1.3: u32), const 9_u32); - switchInt(move _6) -> [0: bb6, otherwise: bb8]; + _3 = Le(const 13_u32, (_1.3: u32)); + switchInt(move _3) -> [0: bb1, otherwise: bb6]; } bb6: { - _3 = Le(const 13_u32, (_1.3: u32)); - switchInt(move _3) -> [0: bb1, otherwise: bb7]; + _4 = Le((_1.3: u32), const 16_u32); + switchInt(move _4) -> [0: bb1, otherwise: bb8]; } bb7: { - _4 = Le((_1.3: u32), const 16_u32); - switchInt(move _4) -> [0: bb1, otherwise: bb8]; + _6 = Le((_1.3: u32), const 9_u32); + switchInt(move _6) -> [0: bb5, otherwise: bb8]; } bb8: { diff --git a/tests/mir-opt/gvn.constant_index_overflow.GVN.panic-abort.diff b/tests/mir-opt/gvn.constant_index_overflow.GVN.panic-abort.diff new file mode 100644 index 00000000000..4b1e3379114 --- /dev/null +++ b/tests/mir-opt/gvn.constant_index_overflow.GVN.panic-abort.diff @@ -0,0 +1,104 @@ +- // MIR for `constant_index_overflow` before GVN ++ // MIR for `constant_index_overflow` after GVN + + fn constant_index_overflow(_1: &[T]) -> () { + debug x => _1; + let mut _0: (); + let _2: usize; + let mut _4: bool; + let mut _5: usize; + let mut _6: usize; + let mut _7: &[T]; + let _8: usize; + let mut _9: usize; + let mut _10: bool; + let _11: usize; + let mut _12: usize; + let mut _13: bool; + let mut _14: T; + scope 1 { + debug a => _2; + let _3: T; + scope 2 { + debug b => _3; + } + } + + bb0: { +- StorageLive(_2); +- _2 = const _ as usize (IntToInt); ++ nop; ++ _2 = const usize::MAX; + StorageLive(_3); + StorageLive(_4); + StorageLive(_5); +- _5 = _2; ++ _5 = const usize::MAX; + StorageLive(_6); + StorageLive(_7); + _7 = &(*_1); + _6 = core::slice::<impl [T]>::len(move _7) -> [return: bb1, unwind unreachable]; + } + + bb1: { + StorageDead(_7); +- _4 = Lt(move _5, move _6); ++ _4 = Lt(const usize::MAX, move _6); + switchInt(move _4) -> [0: bb4, otherwise: bb2]; + } + + bb2: { + StorageDead(_6); + StorageDead(_5); + StorageLive(_8); +- _8 = _2; ++ _8 = const usize::MAX; + _9 = Len((*_1)); +- _10 = Lt(_8, _9); +- assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, _8) -> [success: bb3, unwind unreachable]; ++ _10 = Lt(const usize::MAX, _9); ++ assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, const usize::MAX) -> [success: bb3, unwind unreachable]; + } + + bb3: { +- _3 = (*_1)[_8]; ++ _3 = (*_1)[_2]; + StorageDead(_8); + goto -> bb6; + } + + bb4: { + StorageDead(_6); + StorageDead(_5); + StorageLive(_11); + _11 = const 0_usize; + _12 = Len((*_1)); +- _13 = Lt(_11, _12); +- assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, _11) -> [success: bb5, unwind unreachable]; ++ _13 = Lt(const 0_usize, _12); ++ assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, const 0_usize) -> [success: bb5, unwind unreachable]; + } + + bb5: { +- _3 = (*_1)[_11]; ++ _3 = (*_1)[0 of 1]; + StorageDead(_11); + goto -> bb6; + } + + bb6: { + StorageDead(_4); + StorageLive(_14); + _14 = _3; + _0 = opaque::<T>(move _14) -> [return: bb7, unwind unreachable]; + } + + bb7: { + StorageDead(_14); + StorageDead(_3); +- StorageDead(_2); ++ nop; + return; + } + } + diff --git a/tests/mir-opt/gvn.constant_index_overflow.GVN.panic-unwind.diff b/tests/mir-opt/gvn.constant_index_overflow.GVN.panic-unwind.diff new file mode 100644 index 00000000000..8abcd7e9387 --- /dev/null +++ b/tests/mir-opt/gvn.constant_index_overflow.GVN.panic-unwind.diff @@ -0,0 +1,104 @@ +- // MIR for `constant_index_overflow` before GVN ++ // MIR for `constant_index_overflow` after GVN + + fn constant_index_overflow(_1: &[T]) -> () { + debug x => _1; + let mut _0: (); + let _2: usize; + let mut _4: bool; + let mut _5: usize; + let mut _6: usize; + let mut _7: &[T]; + let _8: usize; + let mut _9: usize; + let mut _10: bool; + let _11: usize; + let mut _12: usize; + let mut _13: bool; + let mut _14: T; + scope 1 { + debug a => _2; + let _3: T; + scope 2 { + debug b => _3; + } + } + + bb0: { +- StorageLive(_2); +- _2 = const _ as usize (IntToInt); ++ nop; ++ _2 = const usize::MAX; + StorageLive(_3); + StorageLive(_4); + StorageLive(_5); +- _5 = _2; ++ _5 = const usize::MAX; + StorageLive(_6); + StorageLive(_7); + _7 = &(*_1); + _6 = core::slice::<impl [T]>::len(move _7) -> [return: bb1, unwind continue]; + } + + bb1: { + StorageDead(_7); +- _4 = Lt(move _5, move _6); ++ _4 = Lt(const usize::MAX, move _6); + switchInt(move _4) -> [0: bb4, otherwise: bb2]; + } + + bb2: { + StorageDead(_6); + StorageDead(_5); + StorageLive(_8); +- _8 = _2; ++ _8 = const usize::MAX; + _9 = Len((*_1)); +- _10 = Lt(_8, _9); +- assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, _8) -> [success: bb3, unwind continue]; ++ _10 = Lt(const usize::MAX, _9); ++ assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, const usize::MAX) -> [success: bb3, unwind continue]; + } + + bb3: { +- _3 = (*_1)[_8]; ++ _3 = (*_1)[_2]; + StorageDead(_8); + goto -> bb6; + } + + bb4: { + StorageDead(_6); + StorageDead(_5); + StorageLive(_11); + _11 = const 0_usize; + _12 = Len((*_1)); +- _13 = Lt(_11, _12); +- assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, _11) -> [success: bb5, unwind continue]; ++ _13 = Lt(const 0_usize, _12); ++ assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, const 0_usize) -> [success: bb5, unwind continue]; + } + + bb5: { +- _3 = (*_1)[_11]; ++ _3 = (*_1)[0 of 1]; + StorageDead(_11); + goto -> bb6; + } + + bb6: { + StorageDead(_4); + StorageLive(_14); + _14 = _3; + _0 = opaque::<T>(move _14) -> [return: bb7, unwind continue]; + } + + bb7: { + StorageDead(_14); + StorageDead(_3); +- StorageDead(_2); ++ nop; + return; + } + } + diff --git a/tests/mir-opt/gvn.rs b/tests/mir-opt/gvn.rs index 6e082acdbd3..db131f7f97d 100644 --- a/tests/mir-opt/gvn.rs +++ b/tests/mir-opt/gvn.rs @@ -609,6 +609,22 @@ fn indirect_static() { }) } +/// Verify that having constant index `u64::MAX` does not yield to an overflow in rustc. +fn constant_index_overflow<T: Copy>(x: &[T]) { + // CHECK-LABEL: fn constant_index_overflow( + // CHECK: debug a => [[a:_.*]]; + // CHECK: debug b => [[b:_.*]]; + // CHECK: [[a]] = const usize::MAX; + // CHECK-NOT: = (*_1)[{{.*}} of 0]; + // CHECK: [[b]] = (*_1)[[[a]]]; + // CHECK-NOT: = (*_1)[{{.*}} of 0]; + // CHECK: [[b]] = (*_1)[0 of 1]; + // CHECK-NOT: = (*_1)[{{.*}} of 0]; + let a = u64::MAX as usize; + let b = if a < x.len() { x[a] } else { x[0] }; + opaque(b) +} + fn main() { subexpression_elimination(2, 4, 5); wrap_unwrap(5); @@ -627,6 +643,7 @@ fn main() { repeat(); fn_pointers(); indirect_static(); + constant_index_overflow(&[5, 3]); } #[inline(never)] @@ -653,3 +670,4 @@ fn identity<T>(x: T) -> T { // EMIT_MIR gvn.repeat.GVN.diff // EMIT_MIR gvn.fn_pointers.GVN.diff // EMIT_MIR gvn.indirect_static.GVN.diff +// EMIT_MIR gvn.constant_index_overflow.GVN.diff diff --git a/tests/mir-opt/match_test.main.SimplifyCfg-initial.after.mir b/tests/mir-opt/match_test.main.SimplifyCfg-initial.after.mir index ebb2f70a475..5bf78b6150f 100644 --- a/tests/mir-opt/match_test.main.SimplifyCfg-initial.after.mir +++ b/tests/mir-opt/match_test.main.SimplifyCfg-initial.after.mir @@ -28,43 +28,43 @@ fn main() -> () { StorageLive(_3); PlaceMention(_1); _6 = Le(const 0_i32, _1); - switchInt(move _6) -> [0: bb4, otherwise: bb1]; + switchInt(move _6) -> [0: bb3, otherwise: bb8]; } bb1: { - _7 = Lt(_1, const 10_i32); - switchInt(move _7) -> [0: bb4, otherwise: bb2]; + falseEdge -> [real: bb9, imaginary: bb4]; } bb2: { - falseEdge -> [real: bb9, imaginary: bb6]; + _3 = const 3_i32; + goto -> bb14; } bb3: { - _3 = const 3_i32; - goto -> bb14; + _4 = Le(const 10_i32, _1); + switchInt(move _4) -> [0: bb5, otherwise: bb7]; } bb4: { - _4 = Le(const 10_i32, _1); - switchInt(move _4) -> [0: bb7, otherwise: bb5]; + falseEdge -> [real: bb12, imaginary: bb6]; } bb5: { - _5 = Le(_1, const 20_i32); - switchInt(move _5) -> [0: bb7, otherwise: bb6]; + switchInt(_1) -> [4294967295: bb6, otherwise: bb2]; } bb6: { - falseEdge -> [real: bb12, imaginary: bb8]; + falseEdge -> [real: bb13, imaginary: bb2]; } bb7: { - switchInt(_1) -> [4294967295: bb8, otherwise: bb3]; + _5 = Le(_1, const 20_i32); + switchInt(move _5) -> [0: bb5, otherwise: bb4]; } bb8: { - falseEdge -> [real: bb13, imaginary: bb3]; + _7 = Lt(_1, const 10_i32); + switchInt(move _7) -> [0: bb3, otherwise: bb1]; } bb9: { @@ -83,7 +83,7 @@ fn main() -> () { bb11: { StorageDead(_9); - falseEdge -> [real: bb3, imaginary: bb6]; + falseEdge -> [real: bb2, imaginary: bb4]; } bb12: { diff --git a/tests/mir-opt/reference_prop.rs b/tests/mir-opt/reference_prop.rs index 1b9c8fe15c2..8adfbb4535b 100644 --- a/tests/mir-opt/reference_prop.rs +++ b/tests/mir-opt/reference_prop.rs @@ -1,3 +1,4 @@ +// compile-flags: -Zlint-mir=no // unit-test: ReferencePropagation // needs-unwind diff --git a/tests/rustdoc-gui/src/test_docs/lib.rs b/tests/rustdoc-gui/src/test_docs/lib.rs index 0bc777230bf..7e34178e56f 100644 --- a/tests/rustdoc-gui/src/test_docs/lib.rs +++ b/tests/rustdoc-gui/src/test_docs/lib.rs @@ -85,6 +85,9 @@ impl AsRef<str> for Foo { } } +/// <div id="doc-warning-0" class="warning">I have warnings!</div> +pub struct WarningStruct; + /// Just a normal enum. /// /// # title! diff --git a/tests/rustdoc-gui/warning-block.goml b/tests/rustdoc-gui/warning-block.goml index 8832b65c4d8..10e206049f5 100644 --- a/tests/rustdoc-gui/warning-block.goml +++ b/tests/rustdoc-gui/warning-block.goml @@ -2,6 +2,7 @@ go-to: "file://" + |DOC_PATH| + "/test_docs/struct.Foo.html" show-text: true +store-value: (default_y_pos, 5) define-function: ( "check-warning", (theme, color, border_color), @@ -16,12 +17,18 @@ define-function: ( "border-left": "2px solid " + |border_color|, "background-color": "transparent", }) + store-position: ("#doc-warning-1", {"y": warn_div_y}) + store-position: ("#doc-warning-1::before", {"y": warn_y}) + assert: |warn_y| == |warn_div_y| + |default_y_pos| assert-css: ("#doc-warning-2", { "margin-bottom": "0px", "color": |color|, "border-left": "2px solid " + |border_color|, "background-color": "transparent", }) + store-position: ("#doc-warning-2", {"y": warn_div_y}) + store-position: ("#doc-warning-2::before", {"y": warn_y}) + assert: |warn_y| == |warn_div_y| + |default_y_pos| }, ) @@ -40,3 +47,9 @@ call-function: ("check-warning", { "color": "black", "border_color": "#ff8e00", }) + +// We ensure that the warning element in the top doc is not overlaying the "[-]" button. +go-to: "file://" + |DOC_PATH| + "/test_docs/struct.WarningStruct.html" +store-position: ("#doc-warning-0", {"y": warn_div_y}) +store-position: ("#doc-warning-0::before", {"y": warn_y}) +assert: |warn_y| == |warn_div_y| + |default_y_pos| + 15 diff --git a/tests/rustdoc-json/traits/is_object_safe.rs b/tests/rustdoc-json/traits/is_object_safe.rs new file mode 100644 index 00000000000..131c5fc57a5 --- /dev/null +++ b/tests/rustdoc-json/traits/is_object_safe.rs @@ -0,0 +1,19 @@ +#![no_std] + +// @has "$.index[*][?(@.name=='FooUnsafe')]" +// @is "$.index[*][?(@.name=='FooUnsafe')].inner.trait.is_object_safe" false +pub trait FooUnsafe { + fn foo() -> Self; +} + +// @has "$.index[*][?(@.name=='BarUnsafe')]" +// @is "$.index[*][?(@.name=='BarUnsafe')].inner.trait.is_object_safe" false +pub trait BarUnsafe<T> { + fn foo(i: T); +} + +// @has "$.index[*][?(@.name=='FooSafe')]" +// @is "$.index[*][?(@.name=='FooSafe')].inner.trait.is_object_safe" true +pub trait FooSafe { + fn foo(&self); +} diff --git a/tests/rustdoc-ui/bounded-hr-lifetime.rs b/tests/rustdoc-ui/bounded-hr-lifetime.rs index b2e000b9757..d6c90f552a2 100644 --- a/tests/rustdoc-ui/bounded-hr-lifetime.rs +++ b/tests/rustdoc-ui/bounded-hr-lifetime.rs @@ -4,6 +4,6 @@ pub fn hrlt<'b, 'c>() where for<'a: 'b + 'c> &'a (): std::fmt::Debug, - //~^ ERROR lifetime bounds cannot be used in this context + //~^ ERROR bounds cannot be used in this context { } diff --git a/tests/rustdoc-ui/bounded-hr-lifetime.stderr b/tests/rustdoc-ui/bounded-hr-lifetime.stderr index d7c4e8c380c..c936e4022ef 100644 --- a/tests/rustdoc-ui/bounded-hr-lifetime.stderr +++ b/tests/rustdoc-ui/bounded-hr-lifetime.stderr @@ -1,4 +1,4 @@ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/bounded-hr-lifetime.rs:6:13 | LL | for<'a: 'b + 'c> &'a (): std::fmt::Debug, diff --git a/tests/rustdoc/trait-object-safe.rs b/tests/rustdoc/trait-object-safe.rs index 818843f7558..8b028ad2e13 100644 --- a/tests/rustdoc/trait-object-safe.rs +++ b/tests/rustdoc/trait-object-safe.rs @@ -22,6 +22,6 @@ pub trait Safe { } // @has 'foo/struct.Foo.html' -// @!has - '//*[@class="object-safety-info"]' '' -// @!has - '//*[@id="object-safety"]' '' +// @count - '//*[@class="object-safety-info"]' 0 +// @count - '//*[@id="object-safety"]' 0 pub struct Foo; diff --git a/tests/ui-fulldeps/internal-lints/diagnostics.rs b/tests/ui-fulldeps/internal-lints/diagnostics.rs index 7f545ead152..ab42d3b8c1e 100644 --- a/tests/ui-fulldeps/internal-lints/diagnostics.rs +++ b/tests/ui-fulldeps/internal-lints/diagnostics.rs @@ -13,8 +13,8 @@ extern crate rustc_session; extern crate rustc_span; use rustc_errors::{ - AddToDiagnostic, Diagnostic, DiagnosticBuilder, DiagnosticMessage, ErrorGuaranteed, Handler, - IntoDiagnostic, SubdiagnosticMessage, + AddToDiagnostic, Diagnostic, DiagnosticBuilder, DiagnosticMessage, EmissionGuarantee, DiagCtxt, + IntoDiagnostic, Level, SubdiagnosticMessage, }; use rustc_macros::{Diagnostic, Subdiagnostic}; use rustc_span::Span; @@ -37,18 +37,18 @@ struct Note { pub struct UntranslatableInIntoDiagnostic; -impl<'a> IntoDiagnostic<'a, ErrorGuaranteed> for UntranslatableInIntoDiagnostic { - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> { - handler.struct_err("untranslatable diagnostic") +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for UntranslatableInIntoDiagnostic { + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { + DiagnosticBuilder::new(dcx, level, "untranslatable diagnostic") //~^ ERROR diagnostics should be created using translatable messages } } pub struct TranslatableInIntoDiagnostic; -impl<'a> IntoDiagnostic<'a, ErrorGuaranteed> for TranslatableInIntoDiagnostic { - fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> { - handler.struct_err(crate::fluent_generated::no_crate_example) +impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for TranslatableInIntoDiagnostic { + fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> { + DiagnosticBuilder::new(dcx, level, crate::fluent_generated::no_crate_example) } } @@ -75,11 +75,11 @@ impl AddToDiagnostic for TranslatableInAddToDiagnostic { } } -pub fn make_diagnostics<'a>(handler: &'a Handler) { - let _diag = handler.struct_err(crate::fluent_generated::no_crate_example); +pub fn make_diagnostics<'a>(dcx: &'a DiagCtxt) { + let _diag = dcx.struct_err(crate::fluent_generated::no_crate_example); //~^ ERROR diagnostics should only be created in `IntoDiagnostic`/`AddToDiagnostic` impls - let _diag = handler.struct_err("untranslatable diagnostic"); + let _diag = dcx.struct_err("untranslatable diagnostic"); //~^ ERROR diagnostics should only be created in `IntoDiagnostic`/`AddToDiagnostic` impls //~^^ ERROR diagnostics should be created using translatable messages } @@ -87,6 +87,6 @@ pub fn make_diagnostics<'a>(handler: &'a Handler) { // Check that `rustc_lint_diagnostics`-annotated functions aren't themselves linted. #[rustc_lint_diagnostics] -pub fn skipped_because_of_annotation<'a>(handler: &'a Handler) { - let _diag = handler.struct_err("untranslatable diagnostic"); // okay! +pub fn skipped_because_of_annotation<'a>(dcx: &'a DiagCtxt) { + let _diag = dcx.struct_err("untranslatable diagnostic"); // okay! } diff --git a/tests/ui-fulldeps/internal-lints/diagnostics.stderr b/tests/ui-fulldeps/internal-lints/diagnostics.stderr index 8e0535e021b..f70240ecf17 100644 --- a/tests/ui-fulldeps/internal-lints/diagnostics.stderr +++ b/tests/ui-fulldeps/internal-lints/diagnostics.stderr @@ -1,8 +1,8 @@ error: diagnostics should be created using translatable messages - --> $DIR/diagnostics.rs:42:17 + --> $DIR/diagnostics.rs:42:9 | -LL | handler.struct_err("untranslatable diagnostic") - | ^^^^^^^^^^ +LL | DiagnosticBuilder::new(dcx, level, "untranslatable diagnostic") + | ^^^^^^^^^^^^^^^^^^^^^^ | note: the lint level is defined here --> $DIR/diagnostics.rs:6:9 @@ -17,10 +17,10 @@ LL | diag.note("untranslatable diagnostic"); | ^^^^ error: diagnostics should only be created in `IntoDiagnostic`/`AddToDiagnostic` impls - --> $DIR/diagnostics.rs:79:25 + --> $DIR/diagnostics.rs:79:21 | -LL | let _diag = handler.struct_err(crate::fluent_generated::no_crate_example); - | ^^^^^^^^^^ +LL | let _diag = dcx.struct_err(crate::fluent_generated::no_crate_example); + | ^^^^^^^^^^ | note: the lint level is defined here --> $DIR/diagnostics.rs:7:9 @@ -29,16 +29,16 @@ LL | #![deny(rustc::diagnostic_outside_of_impl)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: diagnostics should only be created in `IntoDiagnostic`/`AddToDiagnostic` impls - --> $DIR/diagnostics.rs:82:25 + --> $DIR/diagnostics.rs:82:21 | -LL | let _diag = handler.struct_err("untranslatable diagnostic"); - | ^^^^^^^^^^ +LL | let _diag = dcx.struct_err("untranslatable diagnostic"); + | ^^^^^^^^^^ error: diagnostics should be created using translatable messages - --> $DIR/diagnostics.rs:82:25 + --> $DIR/diagnostics.rs:82:21 | -LL | let _diag = handler.struct_err("untranslatable diagnostic"); - | ^^^^^^^^^^ +LL | let _diag = dcx.struct_err("untranslatable diagnostic"); + | ^^^^^^^^^^ error: aborting due to 5 previous errors diff --git a/tests/ui-fulldeps/stable-mir/check_abi.rs b/tests/ui-fulldeps/stable-mir/check_abi.rs new file mode 100644 index 00000000000..30b42bc3bfa --- /dev/null +++ b/tests/ui-fulldeps/stable-mir/check_abi.rs @@ -0,0 +1,143 @@ +// run-pass +//! Test information regarding type layout. + +// ignore-stage1 +// ignore-cross-compile +// ignore-remote +// ignore-windows-gnu mingw has troubles with linking https://github.com/rust-lang/rust/pull/116837 + +#![feature(rustc_private)] +#![feature(assert_matches)] +#![feature(control_flow_enum)] +#![feature(ascii_char, ascii_char_variants)] + +extern crate rustc_hir; +extern crate rustc_middle; +#[macro_use] +extern crate rustc_smir; +extern crate rustc_driver; +extern crate rustc_interface; +extern crate stable_mir; + +use rustc_middle::ty::TyCtxt; +use rustc_smir::rustc_internal; +use stable_mir::abi::{ArgAbi, CallConvention, FieldsShape, PassMode, VariantsShape}; +use stable_mir::mir::mono::Instance; +use stable_mir::{CrateDef, CrateItem, CrateItems, ItemKind}; +use std::assert_matches::assert_matches; +use std::convert::TryFrom; +use std::io::Write; +use std::ops::ControlFlow; + +const CRATE_NAME: &str = "input"; + +/// This function uses the Stable MIR APIs to get information about the test crate. +fn test_stable_mir(_tcx: TyCtxt<'_>) -> ControlFlow<()> { + // Find items in the local crate. + let items = stable_mir::all_local_items(); + + // Test fn_abi + let target_fn = *get_item(&items, (ItemKind::Fn, "fn_abi")).unwrap(); + let instance = Instance::try_from(target_fn).unwrap(); + let fn_abi = instance.fn_abi().unwrap(); + assert_eq!(fn_abi.conv, CallConvention::Rust); + assert_eq!(fn_abi.args.len(), 2); + + check_ignore(&fn_abi.args[0]); + check_primitive(&fn_abi.args[1]); + check_result(fn_abi.ret); + + // Test variadic function. + let variadic_fn = *get_item(&items, (ItemKind::Fn, "variadic_fn")).unwrap(); + check_variadic(variadic_fn); + + ControlFlow::Continue(()) +} + +/// Check the variadic function ABI: +/// ```no_run +/// pub unsafe extern "C" fn variadic_fn(n: usize, mut args: ...) -> usize { +/// 0 +/// } +/// ``` +fn check_variadic(variadic_fn: CrateItem) { + let instance = Instance::try_from(variadic_fn).unwrap(); + let abi = instance.fn_abi().unwrap(); + assert!(abi.c_variadic); + assert_eq!(abi.args.len(), 1); +} + +/// Check the argument to be ignored: `ignore: [u8; 0]`. +fn check_ignore(abi: &ArgAbi) { + assert!(abi.ty.kind().is_array()); + assert_eq!(abi.mode, PassMode::Ignore); + let layout = abi.layout.shape(); + assert!(layout.is_sized()); + assert!(layout.is_1zst()); +} + +/// Check the primitive argument: `primitive: char`. +fn check_primitive(abi: &ArgAbi) { + assert!(abi.ty.kind().is_char()); + assert_matches!(abi.mode, PassMode::Direct(_)); + let layout = abi.layout.shape(); + assert!(layout.is_sized()); + assert!(!layout.is_1zst()); + assert_matches!(layout.fields, FieldsShape::Primitive); +} + +/// Check the return value: `Result<usize, &str>`. +fn check_result(abi: ArgAbi) { + assert!(abi.ty.kind().is_enum()); + assert_matches!(abi.mode, PassMode::Indirect { .. }); + let layout = abi.layout.shape(); + assert!(layout.is_sized()); + assert_matches!(layout.fields, FieldsShape::Arbitrary { .. }); + assert_matches!(layout.variants, VariantsShape::Multiple { .. }) +} + +fn get_item<'a>( + items: &'a CrateItems, + item: (ItemKind, &str), +) -> Option<&'a stable_mir::CrateItem> { + items.iter().find(|crate_item| (item.0 == crate_item.kind()) && crate_item.name() == item.1) +} + +/// This test will generate and analyze a dummy crate using the stable mir. +/// For that, it will first write the dummy crate into a file. +/// Then it will create a `StableMir` using custom arguments and then +/// it will run the compiler. +fn main() { + let path = "alloc_input.rs"; + generate_input(&path).unwrap(); + let args = vec![ + "rustc".to_string(), + "--crate-type=lib".to_string(), + "--crate-name".to_string(), + CRATE_NAME.to_string(), + path.to_string(), + ]; + run!(args, tcx, test_stable_mir(tcx)).unwrap(); +} + +fn generate_input(path: &str) -> std::io::Result<()> { + let mut file = std::fs::File::create(path)?; + write!( + file, + r#" + #![feature(c_variadic)] + #![allow(unused_variables)] + + pub fn fn_abi(ignore: [u8; 0], primitive: char) -> Result<usize, &'static str> {{ + // We only care about the signature. + todo!() + }} + + + pub unsafe extern "C" fn variadic_fn(n: usize, mut args: ...) -> usize {{ + 0 + }} + "# + )?; + Ok(()) +} diff --git a/tests/ui-fulldeps/stable-mir/check_allocation.rs b/tests/ui-fulldeps/stable-mir/check_allocation.rs index 8554630e9c9..7ce3597206b 100644 --- a/tests/ui-fulldeps/stable-mir/check_allocation.rs +++ b/tests/ui-fulldeps/stable-mir/check_allocation.rs @@ -209,7 +209,6 @@ fn check_len(item: CrateItem) { assert_eq!(alloc.read_uint(), Ok(2)); } -// Use internal API to find a function in a crate. fn get_item<'a>( items: &'a CrateItems, item: (ItemKind, &str), diff --git a/tests/ui-fulldeps/stable-mir/check_defs.rs b/tests/ui-fulldeps/stable-mir/check_defs.rs index ad667511332..e9a2599d873 100644 --- a/tests/ui-fulldeps/stable-mir/check_defs.rs +++ b/tests/ui-fulldeps/stable-mir/check_defs.rs @@ -69,9 +69,9 @@ fn extract_elem_ty(ty: Ty) -> Ty { /// Check signature and type of `Vec::<u8>::new` and its generic version. fn test_vec_new(instance: mir::mono::Instance) { - let sig = instance.ty().kind().fn_sig().unwrap().skip_binder(); - assert_matches!(sig.inputs(), &[]); - let elem_ty = extract_elem_ty(sig.output()); + let sig = instance.fn_abi().unwrap(); + assert_eq!(&sig.args, &[]); + let elem_ty = extract_elem_ty(sig.ret.ty); assert_matches!(elem_ty.kind(), TyKind::RigidTy(RigidTy::Uint(UintTy::U8))); // Get the signature for Vec::<T>::new. diff --git a/tests/ui-fulldeps/stable-mir/check_item_kind.rs b/tests/ui-fulldeps/stable-mir/check_item_kind.rs new file mode 100644 index 00000000000..72e0e09e6e3 --- /dev/null +++ b/tests/ui-fulldeps/stable-mir/check_item_kind.rs @@ -0,0 +1,84 @@ +// run-pass +//! Test that item kind works as expected. + +// ignore-stage1 +// ignore-cross-compile +// ignore-remote +// ignore-windows-gnu mingw has troubles with linking https://github.com/rust-lang/rust/pull/116837 +// edition: 2021 + +#![feature(rustc_private)] +#![feature(assert_matches)] +#![feature(control_flow_enum)] + +extern crate rustc_middle; +#[macro_use] +extern crate rustc_smir; +extern crate rustc_driver; +extern crate rustc_interface; +extern crate stable_mir; + +use rustc_middle::ty::TyCtxt; +use rustc_smir::rustc_internal; +use stable_mir::*; +use std::io::Write; +use std::ops::ControlFlow; + +const CRATE_NAME: &str = "input"; + +/// This function uses the Stable MIR APIs to get information about the test crate. +fn test_item_kind(_tcx: TyCtxt<'_>) -> ControlFlow<()> { + let items = stable_mir::all_local_items(); + assert_eq!(items.len(), 4); + // Constructor item. + for item in items { + let expected_kind = match item.name().as_str() { + "Dummy" => ItemKind::Ctor(CtorKind::Fn), + "dummy" => ItemKind::Fn, + "unit" => ItemKind::Fn, + "DUMMY_CONST" => ItemKind::Const, + name => unreachable!("Unexpected item {name}"), + }; + assert_eq!(item.kind(), expected_kind, "Mismatched type for {}", item.name()); + } + ControlFlow::Continue(()) +} + +/// This test will generate and analyze a dummy crate using the stable mir. +/// For that, it will first write the dummy crate into a file. +/// Then it will create a `StableMir` using custom arguments and then +/// it will run the compiler. +fn main() { + let path = "item_kind_input.rs"; + generate_input(&path).unwrap(); + let args = vec![ + "rustc".to_string(), + "-Cpanic=abort".to_string(), + "--crate-type=lib".to_string(), + "--crate-name".to_string(), + CRATE_NAME.to_string(), + path.to_string(), + ]; + run!(args, tcx, test_item_kind(tcx)).unwrap(); +} + +fn generate_input(path: &str) -> std::io::Result<()> { + let mut file = std::fs::File::create(path)?; + write!( + file, + r#" + pub struct Dummy(u32); + pub const DUMMY_CONST: Dummy = Dummy(0); + pub struct DummyUnit; + + pub fn dummy() -> Dummy {{ + Dummy(5) + }} + + pub fn unit() -> DummyUnit {{ + DummyUnit + }} + "# + )?; + Ok(()) +} diff --git a/tests/ui/associated-inherent-types/issue-109071.no_gate.stderr b/tests/ui/associated-inherent-types/issue-109071.no_gate.stderr index 866a53f57fc..2fceeb15ea9 100644 --- a/tests/ui/associated-inherent-types/issue-109071.no_gate.stderr +++ b/tests/ui/associated-inherent-types/issue-109071.no_gate.stderr @@ -33,7 +33,14 @@ error[E0223]: ambiguous associated type --> $DIR/issue-109071.rs:15:22 | LL | fn T() -> Option<Self::Item> {} - | ^^^^^^^^^^ help: use fully-qualified syntax: `<Windows<T> as IntoIterator>::Item` + | ^^^^^^^^^^ + | +help: use fully-qualified syntax + | +LL | fn T() -> Option<<Windows<T> as IntoAsyncIterator>::Item> {} + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +LL | fn T() -> Option<<Windows<T> as IntoIterator>::Item> {} + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: aborting due to 4 previous errors diff --git a/tests/ui/async-await/feature-async-for-loop.rs b/tests/ui/async-await/feature-async-for-loop.rs new file mode 100644 index 00000000000..42247dd14b0 --- /dev/null +++ b/tests/ui/async-await/feature-async-for-loop.rs @@ -0,0 +1,23 @@ +// edition:2021 +// gate-test-async_for_loop + +#![feature(async_iter_from_iter, async_iterator)] + +fn f() { + let _ = async { + for await _i in core::async_iter::from_iter(0..3) { + //~^ ERROR `for await` loops are experimental + } + }; +} + +#[cfg(FALSE)] +fn g() { + let _ = async { + for await _i in core::async_iter::from_iter(0..3) { + //~^ ERROR `for await` loops are experimental + } + }; +} + +fn main() {} diff --git a/tests/ui/async-await/feature-async-for-loop.stderr b/tests/ui/async-await/feature-async-for-loop.stderr new file mode 100644 index 00000000000..38f75821772 --- /dev/null +++ b/tests/ui/async-await/feature-async-for-loop.stderr @@ -0,0 +1,21 @@ +error[E0658]: `for await` loops are experimental + --> $DIR/feature-async-for-loop.rs:8:13 + | +LL | for await _i in core::async_iter::from_iter(0..3) { + | ^^^^^ + | + = note: see issue #118898 <https://github.com/rust-lang/rust/issues/118898> for more information + = help: add `#![feature(async_for_loop)]` to the crate attributes to enable + +error[E0658]: `for await` loops are experimental + --> $DIR/feature-async-for-loop.rs:17:13 + | +LL | for await _i in core::async_iter::from_iter(0..3) { + | ^^^^^ + | + = note: see issue #118898 <https://github.com/rust-lang/rust/issues/118898> for more information + = help: add `#![feature(async_for_loop)]` to the crate attributes to enable + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/async-await/for-await-2015.rs b/tests/ui/async-await/for-await-2015.rs new file mode 100644 index 00000000000..c1b7c016d1f --- /dev/null +++ b/tests/ui/async-await/for-await-2015.rs @@ -0,0 +1,10 @@ +// check-pass + +#![feature(async_for_loop)] + +// Make sure we don't break `for await` loops in the 2015 edition, where `await` was allowed as an +// identifier. + +fn main() { + for await in 0..3 {} +} diff --git a/tests/ui/async-await/for-await-consumes-iter.rs b/tests/ui/async-await/for-await-consumes-iter.rs new file mode 100644 index 00000000000..65bb9e88448 --- /dev/null +++ b/tests/ui/async-await/for-await-consumes-iter.rs @@ -0,0 +1,20 @@ +// edition: 2021 +#![feature(async_iterator, async_iter_from_iter, const_waker, async_for_loop, noop_waker)] + +use std::future::Future; + +// a test to make sure `for await` consumes the iterator + +async fn real_main() { + let iter = core::async_iter::from_iter(0..3); + let mut count = 0; + for await i in iter { + } + // make sure iter has been moved and we can't iterate over it again. + for await i in iter { + //~^ ERROR: use of moved value: `iter` + } +} + +fn main() { +} diff --git a/tests/ui/async-await/for-await-consumes-iter.stderr b/tests/ui/async-await/for-await-consumes-iter.stderr new file mode 100644 index 00000000000..a3e5bbcabf5 --- /dev/null +++ b/tests/ui/async-await/for-await-consumes-iter.stderr @@ -0,0 +1,22 @@ +error[E0382]: use of moved value: `iter` + --> $DIR/for-await-consumes-iter.rs:14:20 + | +LL | let iter = core::async_iter::from_iter(0..3); + | ---- move occurs because `iter` has type `FromIter<std::ops::Range<i32>>`, which does not implement the `Copy` trait +LL | let mut count = 0; +LL | for await i in iter { + | ---- `iter` moved due to this method call +... +LL | for await i in iter { + | ^^^^ value used here after move + | +note: `into_async_iter` takes ownership of the receiver `self`, which moves `iter` + --> $SRC_DIR/core/src/async_iter/async_iter.rs:LL:COL +help: you can `clone` the value and consume it, but this might not be your desired behavior + | +LL | for await i in iter.clone() { + | ++++++++ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0382`. diff --git a/tests/ui/async-await/for-await-passthrough.rs b/tests/ui/async-await/for-await-passthrough.rs new file mode 100644 index 00000000000..7fa133aaedc --- /dev/null +++ b/tests/ui/async-await/for-await-passthrough.rs @@ -0,0 +1,32 @@ +// run-pass +// edition: 2024 +// compile-flags: -Zunstable-options +#![feature(async_iterator, async_iter_from_iter, const_waker, async_for_loop, noop_waker, + gen_blocks)] + +use std::future::Future; + +async gen fn async_iter() -> i32 { + let iter = core::async_iter::from_iter(0..3); + for await i in iter { + yield i + 1; + } +} + +// make sure a simple for await loop works +async fn real_main() { + let mut count = 1; + for await i in async_iter() { + assert_eq!(i, count); + count += 1; + } + assert_eq!(count, 4); +} + +fn main() { + let future = real_main(); + let waker = std::task::Waker::noop(); + let mut cx = &mut core::task::Context::from_waker(&waker); + let mut future = core::pin::pin!(future); + while let core::task::Poll::Pending = future.as_mut().poll(&mut cx) {} +} diff --git a/tests/ui/async-await/for-await.rs b/tests/ui/async-await/for-await.rs new file mode 100644 index 00000000000..6345ceb0c27 --- /dev/null +++ b/tests/ui/async-await/for-await.rs @@ -0,0 +1,24 @@ +// run-pass +// edition: 2021 +#![feature(async_iterator, async_iter_from_iter, const_waker, async_for_loop, noop_waker)] + +use std::future::Future; + +// make sure a simple for await loop works +async fn real_main() { + let iter = core::async_iter::from_iter(0..3); + let mut count = 0; + for await i in iter { + assert_eq!(i, count); + count += 1; + } + assert_eq!(count, 3); +} + +fn main() { + let future = real_main(); + let waker = std::task::Waker::noop(); + let mut cx = &mut core::task::Context::from_waker(&waker); + let mut future = core::pin::pin!(future); + while let core::task::Poll::Pending = future.as_mut().poll(&mut cx) {} +} diff --git a/tests/ui/bounds-lifetime.rs b/tests/ui/bounds-lifetime.rs index e3e635a4e84..f26976066ac 100644 --- a/tests/ui/bounds-lifetime.rs +++ b/tests/ui/bounds-lifetime.rs @@ -1,6 +1,6 @@ -type A = for<'b, 'a: 'b> fn(); //~ ERROR lifetime bounds cannot be used in this context -type B = for<'b, 'a: 'b,> fn(); //~ ERROR lifetime bounds cannot be used in this context -type C = for<'b, 'a: 'b +> fn(); //~ ERROR lifetime bounds cannot be used in this context +type A = for<'b, 'a: 'b> fn(); //~ ERROR bounds cannot be used in this context +type B = for<'b, 'a: 'b,> fn(); //~ ERROR bounds cannot be used in this context +type C = for<'b, 'a: 'b +> fn(); //~ ERROR bounds cannot be used in this context type D = for<'a, T> fn(); //~ ERROR only lifetime parameters can be used in this context type E = dyn for<T, U> Fn(); //~ ERROR only lifetime parameters can be used in this context diff --git a/tests/ui/bounds-lifetime.stderr b/tests/ui/bounds-lifetime.stderr index bbae835d875..de9b9e01242 100644 --- a/tests/ui/bounds-lifetime.stderr +++ b/tests/ui/bounds-lifetime.stderr @@ -1,16 +1,16 @@ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/bounds-lifetime.rs:1:22 | LL | type A = for<'b, 'a: 'b> fn(); | ^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/bounds-lifetime.rs:2:22 | LL | type B = for<'b, 'a: 'b,> fn(); | ^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/bounds-lifetime.rs:3:22 | LL | type C = for<'b, 'a: 'b +> fn(); diff --git a/tests/ui/closures/2229_closure_analysis/issue-118144.rs b/tests/ui/closures/2229_closure_analysis/issue-118144.rs new file mode 100644 index 00000000000..3e5d9f9739a --- /dev/null +++ b/tests/ui/closures/2229_closure_analysis/issue-118144.rs @@ -0,0 +1,16 @@ +// Regression test for ICE #118144 + +struct V(i32); + +fn func(func_arg: &mut V) { + || { + // Declaring `x` separately instead of using + // a destructuring binding like `let V(x) = ...` + // becaue only `V(x) = ...` triggers the ICE + let x; + V(x) = func_arg; //~ ERROR: mismatched types + func_arg.0 = 0; + }; +} + +fn main() {} diff --git a/tests/ui/closures/2229_closure_analysis/issue-118144.stderr b/tests/ui/closures/2229_closure_analysis/issue-118144.stderr new file mode 100644 index 00000000000..85cb5adc07e --- /dev/null +++ b/tests/ui/closures/2229_closure_analysis/issue-118144.stderr @@ -0,0 +1,11 @@ +error[E0308]: mismatched types + --> $DIR/issue-118144.rs:11:9 + | +LL | V(x) = func_arg; + | ^^^^ -------- this expression has type `&mut V` + | | + | expected `&mut V`, found `V` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/closures/binder/bounds-on-closure-type-binders.rs b/tests/ui/closures/binder/bounds-on-closure-type-binders.rs new file mode 100644 index 00000000000..099047251ca --- /dev/null +++ b/tests/ui/closures/binder/bounds-on-closure-type-binders.rs @@ -0,0 +1,14 @@ +// check-fail + +#![allow(incomplete_features)] +#![feature(non_lifetime_binders)] +#![feature(closure_lifetime_binder)] + +trait Trait {} + +fn main() { + // Regression test for issue #119067 + let _ = for<T: Trait> || -> () {}; + //~^ ERROR bounds cannot be used in this context + //~| ERROR late-bound type parameter not allowed on closures +} diff --git a/tests/ui/closures/binder/bounds-on-closure-type-binders.stderr b/tests/ui/closures/binder/bounds-on-closure-type-binders.stderr new file mode 100644 index 00000000000..9cb921f6631 --- /dev/null +++ b/tests/ui/closures/binder/bounds-on-closure-type-binders.stderr @@ -0,0 +1,14 @@ +error: bounds cannot be used in this context + --> $DIR/bounds-on-closure-type-binders.rs:11:20 + | +LL | let _ = for<T: Trait> || -> () {}; + | ^^^^^ + +error: late-bound type parameter not allowed on closures + --> $DIR/bounds-on-closure-type-binders.rs:11:17 + | +LL | let _ = for<T: Trait> || -> () {}; + | ^ + +error: aborting due to 2 previous errors + diff --git a/tests/ui/const-generics/default-ty-closure.rs b/tests/ui/const-generics/default-ty-closure.rs new file mode 100644 index 00000000000..36128505dda --- /dev/null +++ b/tests/ui/const-generics/default-ty-closure.rs @@ -0,0 +1,6 @@ +// https://github.com/rust-lang/rust/issues/116796 + +struct X<const FN: fn() = { || {} }>; +//~^ ERROR using function pointers as const generic parameters is forbidden + +fn main() {} diff --git a/tests/ui/const-generics/default-ty-closure.stderr b/tests/ui/const-generics/default-ty-closure.stderr new file mode 100644 index 00000000000..9c737c1a19d --- /dev/null +++ b/tests/ui/const-generics/default-ty-closure.stderr @@ -0,0 +1,10 @@ +error: using function pointers as const generic parameters is forbidden + --> $DIR/default-ty-closure.rs:3:20 + | +LL | struct X<const FN: fn() = { || {} }>; + | ^^^^ + | + = note: the only supported types are integers, `bool` and `char` + +error: aborting due to 1 previous error + diff --git a/tests/ui/consts/auxiliary/closure-in-foreign-crate.rs b/tests/ui/consts/auxiliary/closure-in-foreign-crate.rs index edc7fa81abb..411707133a8 100644 --- a/tests/ui/consts/auxiliary/closure-in-foreign-crate.rs +++ b/tests/ui/consts/auxiliary/closure-in-foreign-crate.rs @@ -1,5 +1,5 @@ #![crate_type = "lib"] -#![feature(const_closures, const_trait_impl)] +#![feature(const_closures, const_trait_impl, effects)] #![allow(incomplete_features)] pub const fn test() { diff --git a/tests/ui/consts/const-float-classify.rs b/tests/ui/consts/const-float-classify.rs index 877ce02193c..e8bd095ed25 100644 --- a/tests/ui/consts/const-float-classify.rs +++ b/tests/ui/consts/const-float-classify.rs @@ -1,41 +1,24 @@ // compile-flags: -Zmir-opt-level=0 -// known-bug: #110395 -// FIXME run-pass +// run-pass #![feature(const_float_bits_conv)] #![feature(const_float_classify)] -#![feature(const_trait_impl)] +#![feature(const_trait_impl, effects)] // Don't promote const fn nop<T>(x: T) -> T { x } -// FIXME(const-hack): replace with PartialEq -#[const_trait] -trait MyEq<T> { - fn eq(self, b: T) -> bool; -} - -impl const MyEq<bool> for bool { - fn eq(self, b: bool) -> bool { - self == b - } -} - -impl const MyEq<NonDet> for bool { - fn eq(self, _: NonDet) -> bool { +impl const PartialEq<NonDet> for bool { + fn eq(&self, _: &NonDet) -> bool { true } } -const fn eq<A: ~const MyEq<B>, B>(x: A, y: B) -> bool { - x.eq(y) -} - macro_rules! const_assert { ($a:expr, $b:expr) => { { - const _: () = assert!(eq($a, $b)); - assert!(eq(nop($a), nop($b))); + const _: () = assert!($a == $b); + assert!(nop($a) == nop($b)); } }; } diff --git a/tests/ui/consts/const-float-classify.stderr b/tests/ui/consts/const-float-classify.stderr deleted file mode 100644 index f0c6c69eac4..00000000000 --- a/tests/ui/consts/const-float-classify.stderr +++ /dev/null @@ -1,11 +0,0 @@ -error[E0015]: cannot call non-const fn `<A as MyEq<B>>::eq` in constant functions - --> $DIR/const-float-classify.rs:31:7 - | -LL | x.eq(y) - | ^^^^^ - | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants - -error: aborting due to 1 previous error - -For more information about this error, try `rustc --explain E0015`. diff --git a/tests/ui/consts/const-try.stderr b/tests/ui/consts/const-try.stderr index 94f4153a29e..37a6598af9e 100644 --- a/tests/ui/consts/const-try.stderr +++ b/tests/ui/consts/const-try.stderr @@ -10,6 +10,7 @@ note: impl defined here, but it is not `const` LL | impl const Try for TryMe { | ^^^^^^^^^^^^^^^^^^^^^^^^ = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error[E0015]: `?` cannot convert from residual of `TryMe` in constant functions --> $DIR/const-try.rs:33:5 @@ -23,6 +24,7 @@ note: impl defined here, but it is not `const` LL | impl const FromResidual<Error> for TryMe { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 2 previous errors diff --git a/tests/ui/consts/const_cmp_type_id.rs b/tests/ui/consts/const_cmp_type_id.rs index 19cee2022ac..cda811144c7 100644 --- a/tests/ui/consts/const_cmp_type_id.rs +++ b/tests/ui/consts/const_cmp_type_id.rs @@ -1,6 +1,6 @@ // known-bug: #110395 #![feature(const_type_id)] -#![feature(const_trait_impl)] +#![feature(const_trait_impl, effects)] use std::any::TypeId; diff --git a/tests/ui/consts/const_cmp_type_id.stderr b/tests/ui/consts/const_cmp_type_id.stderr index 0d915cec07d..84be0b67307 100644 --- a/tests/ui/consts/const_cmp_type_id.stderr +++ b/tests/ui/consts/const_cmp_type_id.stderr @@ -1,34 +1,28 @@ -error[E0015]: cannot call non-const operator in constant functions +error[E0131]: `main` function is not allowed to have generic parameters + --> $DIR/const_cmp_type_id.rs:7:14 + | +LL | const fn main() { + | ^ `main` cannot have generic parameters + +error[E0308]: mismatched types --> $DIR/const_cmp_type_id.rs:8:13 | LL | assert!(TypeId::of::<u8>() == TypeId::of::<u8>()); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `host`, found `true` | -note: impl defined here, but it is not `const` - --> $SRC_DIR/core/src/any.rs:LL:COL - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = note: expected constant `host` + found constant `true` -error[E0015]: cannot call non-const operator in constant functions +error[E0308]: mismatched types --> $DIR/const_cmp_type_id.rs:9:13 | LL | assert!(TypeId::of::<()>() != TypeId::of::<u8>()); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | -note: impl defined here, but it is not `const` - --> $SRC_DIR/core/src/any.rs:LL:COL - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants - -error[E0015]: cannot call non-const operator in constants - --> $DIR/const_cmp_type_id.rs:10:22 - | -LL | const _A: bool = TypeId::of::<u8>() < TypeId::of::<u16>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `host`, found `true` | -note: impl defined here, but it is not `const` - --> $SRC_DIR/core/src/any.rs:LL:COL - = note: calls in constants are limited to constant functions, tuple structs and tuple variants - = note: this error originates in the derive macro `PartialOrd` (in Nightly builds, run with -Z macro-backtrace for more info) + = note: expected constant `host` + found constant `true` error: aborting due to 3 previous errors -For more information about this error, try `rustc --explain E0015`. +Some errors have detailed explanations: E0131, E0308. +For more information about an error, try `rustc --explain E0131`. diff --git a/tests/ui/consts/const_in_pattern/null-raw-ptr-issue-119270.rs b/tests/ui/consts/const_in_pattern/null-raw-ptr-issue-119270.rs new file mode 100644 index 00000000000..03e91f2b3b1 --- /dev/null +++ b/tests/ui/consts/const_in_pattern/null-raw-ptr-issue-119270.rs @@ -0,0 +1,19 @@ +// run-pass +// Eventually this will be rejected (when the future-compat lints are turned into hard errors), and +// then this test can be removed. But meanwhile we should ensure that this works and does not ICE. +struct NoDerive(i32); + +#[derive(PartialEq)] +struct WrapEmbedded(*const NoDerive); + +const WRAP_UNSAFE_EMBEDDED: &&WrapEmbedded = &&WrapEmbedded(std::ptr::null()); + +fn main() { + let b = match WRAP_UNSAFE_EMBEDDED { + WRAP_UNSAFE_EMBEDDED => true, + //~^ WARN: must be annotated with `#[derive(PartialEq, Eq)]` + //~| previously accepted + _ => false, + }; + assert!(b); +} diff --git a/tests/ui/consts/const_in_pattern/null-raw-ptr-issue-119270.stderr b/tests/ui/consts/const_in_pattern/null-raw-ptr-issue-119270.stderr new file mode 100644 index 00000000000..c186d349e72 --- /dev/null +++ b/tests/ui/consts/const_in_pattern/null-raw-ptr-issue-119270.stderr @@ -0,0 +1,14 @@ +warning: to use a constant of type `WrapEmbedded` in a pattern, `WrapEmbedded` must be annotated with `#[derive(PartialEq, Eq)]` + --> $DIR/null-raw-ptr-issue-119270.rs:13:9 + | +LL | WRAP_UNSAFE_EMBEDDED => true, + | ^^^^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #62411 <https://github.com/rust-lang/rust/issues/62411> + = note: the traits must be derived, manual `impl`s are not sufficient + = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details + = note: `#[warn(indirect_structural_match)]` on by default + +warning: 1 warning emitted + diff --git a/tests/ui/consts/constifconst-call-in-const-position.stderr b/tests/ui/consts/constifconst-call-in-const-position.stderr index 6eee466611c..42ad4125824 100644 --- a/tests/ui/consts/constifconst-call-in-const-position.stderr +++ b/tests/ui/consts/constifconst-call-in-const-position.stderr @@ -14,6 +14,7 @@ LL | [0; T::a()] | ^^^^^^ | = note: calls in constants are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error[E0015]: cannot call non-const fn `<T as Tr>::a` in constants --> $DIR/constifconst-call-in-const-position.rs:16:38 @@ -22,6 +23,7 @@ LL | const fn foo<T: ~const Tr>() -> [u8; T::a()] { | ^^^^^^ | = note: calls in constants are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 2 previous errors; 1 warning emitted diff --git a/tests/ui/consts/issue-73976-monomorphic.stderr b/tests/ui/consts/issue-73976-monomorphic.stderr index ef754b23ff0..465efc7bfc2 100644 --- a/tests/ui/consts/issue-73976-monomorphic.stderr +++ b/tests/ui/consts/issue-73976-monomorphic.stderr @@ -7,6 +7,7 @@ LL | GetTypeId::<T>::VALUE == GetTypeId::<usize>::VALUE note: impl defined here, but it is not `const` --> $SRC_DIR/core/src/any.rs:LL:COL = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 1 previous error diff --git a/tests/ui/consts/issue-94675.stderr b/tests/ui/consts/issue-94675.stderr index f51f305ac38..60a56f85c11 100644 --- a/tests/ui/consts/issue-94675.stderr +++ b/tests/ui/consts/issue-94675.stderr @@ -15,6 +15,7 @@ LL | self.bar[0] = baz.len(); note: impl defined here, but it is not `const` --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 2 previous errors diff --git a/tests/ui/coroutine/async-gen-yield-ty-is-unit.rs b/tests/ui/coroutine/async-gen-yield-ty-is-unit.rs new file mode 100644 index 00000000000..aac74d3eacb --- /dev/null +++ b/tests/ui/coroutine/async-gen-yield-ty-is-unit.rs @@ -0,0 +1,17 @@ +// compile-flags: --edition 2024 -Zunstable-options +// check-pass + +#![feature(async_iterator, gen_blocks, noop_waker)] + +use std::{async_iter::AsyncIterator, pin::pin, task::{Context, Waker}}; + +async gen fn gen_fn() -> &'static str { + yield "hello" +} + +pub fn main() { + let async_iterator = pin!(gen_fn()); + let waker = Waker::noop(); + let ctx = &mut Context::from_waker(&waker); + async_iterator.poll_next(ctx); +} diff --git a/tests/ui/coroutine/return-types-diverge.rs b/tests/ui/coroutine/return-types-diverge.rs new file mode 100644 index 00000000000..5f21c8cbf34 --- /dev/null +++ b/tests/ui/coroutine/return-types-diverge.rs @@ -0,0 +1,20 @@ +// compile-flags: --edition 2024 -Zunstable-options +// check-pass + +#![feature(gen_blocks)] + +fn diverge() -> ! { loop {} } + +async gen fn async_gen_fn() -> i32 { diverge() } + +gen fn gen_fn() -> i32 { diverge() } + +fn async_gen_block() { + async gen { yield (); diverge() }; +} + +fn gen_block() { + gen { yield (); diverge() }; +} + +fn main() {} diff --git a/tests/ui/coroutine/return-types.rs b/tests/ui/coroutine/return-types.rs new file mode 100644 index 00000000000..3543d6293f7 --- /dev/null +++ b/tests/ui/coroutine/return-types.rs @@ -0,0 +1,21 @@ +// compile-flags: --edition 2024 -Zunstable-options + +#![feature(gen_blocks)] + +async gen fn async_gen_fn() -> i32 { 0 } +//~^ ERROR mismatched types + +gen fn gen_fn() -> i32 { 0 } +//~^ ERROR mismatched types + +fn async_gen_block() { + async gen { yield (); 1 }; + //~^ ERROR mismatched types +} + +fn gen_block() { + gen { yield (); 1 }; + //~^ ERROR mismatched types +} + +fn main() {} diff --git a/tests/ui/coroutine/return-types.stderr b/tests/ui/coroutine/return-types.stderr new file mode 100644 index 00000000000..7be96e538d9 --- /dev/null +++ b/tests/ui/coroutine/return-types.stderr @@ -0,0 +1,31 @@ +error[E0308]: mismatched types + --> $DIR/return-types.rs:5:38 + | +LL | async gen fn async_gen_fn() -> i32 { 0 } + | --- ^ expected `()`, found integer + | | + | expected `()` because of return type + +error[E0308]: mismatched types + --> $DIR/return-types.rs:8:26 + | +LL | gen fn gen_fn() -> i32 { 0 } + | --- ^ expected `()`, found integer + | | + | expected `()` because of return type + +error[E0308]: mismatched types + --> $DIR/return-types.rs:12:27 + | +LL | async gen { yield (); 1 }; + | ^ expected `()`, found integer + +error[E0308]: mismatched types + --> $DIR/return-types.rs:17:21 + | +LL | gen { yield (); 1 }; + | ^ expected `()`, found integer + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/drop/dynamic-drop.rs b/tests/ui/drop/dynamic-drop.rs index 5bf2cc30e7f..d35913ed641 100644 --- a/tests/ui/drop/dynamic-drop.rs +++ b/tests/ui/drop/dynamic-drop.rs @@ -343,6 +343,17 @@ fn if_let_guard(a: &Allocator, c: bool, d: i32) { } } +fn if_let_guard_2(a: &Allocator, num: i32) { + let d = a.alloc(); + match num { + #[allow(irrefutable_let_patterns)] + 1 | 2 if let Ptr(ref _idx, _) = a.alloc() => { + a.alloc(); + } + _ => {} + } +} + fn panic_after_return(a: &Allocator) -> Ptr<'_> { // Panic in the drop of `p` or `q` can leak let exceptions = vec![8, 9]; @@ -514,6 +525,9 @@ fn main() { run_test(|a| if_let_guard(a, false, 0)); run_test(|a| if_let_guard(a, false, 1)); run_test(|a| if_let_guard(a, false, 2)); + run_test(|a| if_let_guard_2(a, 0)); + run_test(|a| if_let_guard_2(a, 1)); + run_test(|a| if_let_guard_2(a, 2)); run_test(|a| { panic_after_return(a); diff --git a/tests/ui/editions/edition-cstr-2015-2018.rs b/tests/ui/editions/edition-cstr-2015-2018.rs new file mode 100644 index 00000000000..4c35c48646a --- /dev/null +++ b/tests/ui/editions/edition-cstr-2015-2018.rs @@ -0,0 +1,62 @@ +macro_rules! construct { ($x:ident) => { $x"str" } } + //~^ ERROR expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + //~| NOTE expected one of 8 possible tokens + +macro_rules! contain { () => { c"str" } } + //~^ ERROR expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + //~| NOTE expected one of 8 possible tokens + //~| NOTE you may be trying to write a c-string literal + //~| NOTE c-string literals require Rust 2021 or later + //~| HELP pass `--edition 2021` to `rustc` + //~| NOTE for more on editions, read https://doc.rust-lang.org/edition-guide + +fn check_macro_construct() { + construct!(c); //~ NOTE in this expansion of construct! +} + +fn check_macro_contain() { + contain!(); + //~^ NOTE in this expansion of contain! + //~| NOTE in this expansion of contain! + //~| NOTE in this expansion of contain! + //~| NOTE in this expansion of contain! + //~| NOTE in this expansion of contain! +} + +fn check_basic() { + c"str"; + //~^ ERROR expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + //~| NOTE expected one of 8 possible tokens + //~| NOTE you may be trying to write a c-string literal + //~| NOTE c-string literals require Rust 2021 or later + //~| HELP pass `--edition 2021` to `rustc` + //~| NOTE for more on editions, read https://doc.rust-lang.org/edition-guide +} + +fn check_craw() { + cr"str"; + //~^ ERROR expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + //~| NOTE expected one of 8 possible tokens + //~| NOTE you may be trying to write a c-string literal + //~| NOTE c-string literals require Rust 2021 or later + //~| HELP pass `--edition 2021` to `rustc` + //~| NOTE for more on editions, read https://doc.rust-lang.org/edition-guide +} + +fn check_craw_hash() { + cr##"str"##; + //~^ ERROR expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `#` + //~| NOTE expected one of 8 possible tokens + //~| NOTE you may be trying to write a c-string literal + //~| NOTE c-string literals require Rust 2021 or later + //~| HELP pass `--edition 2021` to `rustc` + //~| NOTE for more on editions, read https://doc.rust-lang.org/edition-guide +} + +fn check_cstr_space() { + c "str"; + //~^ ERROR expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + //~| NOTE expected one of 8 possible tokens +} + +fn main() {} diff --git a/tests/ui/editions/edition-cstr-2015-2018.stderr b/tests/ui/editions/edition-cstr-2015-2018.stderr new file mode 100644 index 00000000000..b864df308ef --- /dev/null +++ b/tests/ui/editions/edition-cstr-2015-2018.stderr @@ -0,0 +1,67 @@ +error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + --> $DIR/edition-cstr-2015-2018.rs:27:6 + | +LL | c"str"; + | ^^^^^ expected one of 8 possible tokens + | + = note: you may be trying to write a c-string literal + = note: c-string literals require Rust 2021 or later + = help: pass `--edition 2021` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + +error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + --> $DIR/edition-cstr-2015-2018.rs:37:7 + | +LL | cr"str"; + | ^^^^^ expected one of 8 possible tokens + | + = note: you may be trying to write a c-string literal + = note: c-string literals require Rust 2021 or later + = help: pass `--edition 2021` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + +error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `#` + --> $DIR/edition-cstr-2015-2018.rs:47:7 + | +LL | cr##"str"##; + | ^ expected one of 8 possible tokens + | + = note: you may be trying to write a c-string literal + = note: c-string literals require Rust 2021 or later + = help: pass `--edition 2021` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + +error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + --> $DIR/edition-cstr-2015-2018.rs:57:7 + | +LL | c "str"; + | ^^^^^ expected one of 8 possible tokens + +error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + --> $DIR/edition-cstr-2015-2018.rs:1:44 + | +LL | macro_rules! construct { ($x:ident) => { $x"str" } } + | ^^^^^ expected one of 8 possible tokens +... +LL | construct!(c); + | ------------- in this macro invocation + | + = note: this error originates in the macro `construct` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `"str"` + --> $DIR/edition-cstr-2015-2018.rs:5:33 + | +LL | macro_rules! contain { () => { c"str" } } + | ^^^^^ expected one of 8 possible tokens +... +LL | contain!(); + | ---------- in this macro invocation + | + = note: you may be trying to write a c-string literal + = note: c-string literals require Rust 2021 or later + = help: pass `--edition 2021` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + = note: this error originates in the macro `contain` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 6 previous errors + diff --git a/tests/ui/entry-point/issue-118772.rs b/tests/ui/entry-point/issue-118772.rs new file mode 100644 index 00000000000..1a4173e1252 --- /dev/null +++ b/tests/ui/entry-point/issue-118772.rs @@ -0,0 +1,3 @@ +fn main(_: &i32) { //~ ERROR `main` function has wrong type + println!("Hello, world!"); +} diff --git a/tests/ui/entry-point/issue-118772.stderr b/tests/ui/entry-point/issue-118772.stderr new file mode 100644 index 00000000000..cc33427f59d --- /dev/null +++ b/tests/ui/entry-point/issue-118772.stderr @@ -0,0 +1,12 @@ +error[E0580]: `main` function has wrong type + --> $DIR/issue-118772.rs:1:1 + | +LL | fn main(_: &i32) { + | ^^^^^^^^^^^^^^^^ incorrect number of function parameters + | + = note: expected signature `fn()` + found signature `for<'a> fn(&'a i32)` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0580`. diff --git a/tests/ui/entry-point/return-ty-has-bound-vars.rs b/tests/ui/entry-point/return-ty-has-bound-vars.rs new file mode 100644 index 00000000000..0995ce06160 --- /dev/null +++ b/tests/ui/entry-point/return-ty-has-bound-vars.rs @@ -0,0 +1,3 @@ +// issue-119209 + +fn main<'a>(_: &'a i32) -> &'a () { &() } //~ERROR `main` function return type is not allowed to have generic parameters diff --git a/tests/ui/entry-point/return-ty-has-bound-vars.stderr b/tests/ui/entry-point/return-ty-has-bound-vars.stderr new file mode 100644 index 00000000000..e7aab839f31 --- /dev/null +++ b/tests/ui/entry-point/return-ty-has-bound-vars.stderr @@ -0,0 +1,9 @@ +error[E0131]: `main` function return type is not allowed to have generic parameters + --> $DIR/return-ty-has-bound-vars.rs:3:28 + | +LL | fn main<'a>(_: &'a i32) -> &'a () { &() } + | ^^^^^^ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0131`. diff --git a/tests/ui/generic-const-items/const-trait-impl.stderr b/tests/ui/generic-const-items/const-trait-impl.stderr index e7e90542796..cdcd24eceff 100644 --- a/tests/ui/generic-const-items/const-trait-impl.stderr +++ b/tests/ui/generic-const-items/const-trait-impl.stderr @@ -5,6 +5,7 @@ LL | const CREATE<T: Create>: T = T::create(); | ^^^^^^^^^^^ | = note: calls in constants are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 1 previous error diff --git a/tests/ui/higher-ranked/higher-lifetime-bounds.rs b/tests/ui/higher-ranked/higher-lifetime-bounds.rs index f3393347d90..f1de1d1cf53 100644 --- a/tests/ui/higher-ranked/higher-lifetime-bounds.rs +++ b/tests/ui/higher-ranked/higher-lifetime-bounds.rs @@ -6,7 +6,7 @@ fn bar1<'a, 'b>( x: &'a i32, y: &'b i32, f: for<'xa, 'xb: 'xa+'xa> fn(&'xa i32, &'xb i32) -> &'xa i32) - //~^ ERROR lifetime bounds cannot be used in this context + //~^ ERROR bounds cannot be used in this context { // If the bound in f's type would matter, the call below would (have to) // be rejected. @@ -14,7 +14,7 @@ fn bar1<'a, 'b>( } fn bar2<'a, 'b, F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>( - //~^ ERROR lifetime bounds cannot be used in this context + //~^ ERROR bounds cannot be used in this context x: &'a i32, y: &'b i32, f: F) @@ -29,7 +29,7 @@ fn bar3<'a, 'b, F>( y: &'b i32, f: F) where F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32 - //~^ ERROR lifetime bounds cannot be used in this context + //~^ ERROR bounds cannot be used in this context { // If the bound in f's type would matter, the call below would (have to) // be rejected. @@ -41,7 +41,7 @@ fn bar4<'a, 'b, F>( y: &'b i32, f: F) where for<'xa, 'xb: 'xa> F: Fn(&'xa i32, &'xb i32) -> &'xa i32 - //~^ ERROR lifetime bounds cannot be used in this context + //~^ ERROR bounds cannot be used in this context { // If the bound in f's type would matter, the call below would (have to) // be rejected. @@ -49,21 +49,21 @@ fn bar4<'a, 'b, F>( } struct S1<F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>(F); -//~^ ERROR lifetime bounds cannot be used in this context +//~^ ERROR bounds cannot be used in this context struct S2<F>(F) where F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32; -//~^ ERROR lifetime bounds cannot be used in this context +//~^ ERROR bounds cannot be used in this context struct S3<F>(F) where for<'xa, 'xb: 'xa> F: Fn(&'xa i32, &'xb i32) -> &'xa i32; -//~^ ERROR lifetime bounds cannot be used in this context +//~^ ERROR bounds cannot be used in this context struct S_fnty(for<'xa, 'xb: 'xa> fn(&'xa i32, &'xb i32) -> &'xa i32); -//~^ ERROR lifetime bounds cannot be used in this context +//~^ ERROR bounds cannot be used in this context type T1 = Box<dyn for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>; -//~^ ERROR lifetime bounds cannot be used in this context +//~^ ERROR bounds cannot be used in this context fn main() { let _ : Option<for<'xa, 'xb: 'xa> fn(&'xa i32, &'xb i32) -> &'xa i32> = None; - //~^ ERROR lifetime bounds cannot be used in this context + //~^ ERROR bounds cannot be used in this context let _ : Option<Box<dyn for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>> = None; - //~^ ERROR lifetime bounds cannot be used in this context + //~^ ERROR bounds cannot be used in this context } diff --git a/tests/ui/higher-ranked/higher-lifetime-bounds.stderr b/tests/ui/higher-ranked/higher-lifetime-bounds.stderr index bc6d2288cdf..de83d8bccdb 100644 --- a/tests/ui/higher-ranked/higher-lifetime-bounds.stderr +++ b/tests/ui/higher-ranked/higher-lifetime-bounds.stderr @@ -1,64 +1,64 @@ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:8:22 | LL | f: for<'xa, 'xb: 'xa+'xa> fn(&'xa i32, &'xb i32) -> &'xa i32) | ^^^ ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:16:34 | LL | fn bar2<'a, 'b, F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>( | ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:31:28 | LL | where F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32 | ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:43:25 | LL | where for<'xa, 'xb: 'xa> F: Fn(&'xa i32, &'xb i32) -> &'xa i32 | ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:51:28 | LL | struct S1<F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>(F); | ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:53:40 | LL | struct S2<F>(F) where F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32; | ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:55:37 | LL | struct S3<F>(F) where for<'xa, 'xb: 'xa> F: Fn(&'xa i32, &'xb i32) -> &'xa i32; | ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:58:29 | LL | struct S_fnty(for<'xa, 'xb: 'xa> fn(&'xa i32, &'xb i32) -> &'xa i32); | ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:61:33 | LL | type T1 = Box<dyn for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>; | ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:65:34 | LL | let _ : Option<for<'xa, 'xb: 'xa> fn(&'xa i32, &'xb i32) -> &'xa i32> = None; | ^^^ -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/higher-lifetime-bounds.rs:67:42 | LL | let _ : Option<Box<dyn for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>> = None; diff --git a/tests/ui/higher-ranked/higher-ranked-lifetime-error.stderr b/tests/ui/higher-ranked/higher-ranked-lifetime-error.stderr index d0892fd8b09..c25e731d962 100644 --- a/tests/ui/higher-ranked/higher-ranked-lifetime-error.stderr +++ b/tests/ui/higher-ranked/higher-ranked-lifetime-error.stderr @@ -4,8 +4,8 @@ error[E0308]: mismatched types LL | assert_all::<_, &String>(id); | ^^^^^^^^^^^^^^^^^^^^^^^^ one type is more general than the other | - = note: expected reference `&String` - found reference `&String` + = note: expected trait `for<'a> <for<'a> fn(&'a String) -> &'a String {id} as FnMut<(&'a String,)>>` + found trait `for<'a> <for<'a> fn(&'a String) -> &'a String {id} as FnMut<(&'a String,)>>` error: aborting due to 1 previous error diff --git a/tests/ui/hygiene/panic-location.run.stderr b/tests/ui/hygiene/panic-location.run.stderr index e0dc13c0c95..5c552411da7 100644 --- a/tests/ui/hygiene/panic-location.run.stderr +++ b/tests/ui/hygiene/panic-location.run.stderr @@ -1,3 +1,3 @@ -thread 'main' panicked at library/alloc/src/raw_vec.rs:545:5: +thread 'main' panicked at library/alloc/src/raw_vec.rs:571:5: capacity overflow note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace diff --git a/tests/ui/intrinsics/const-eval-select-bad.stderr b/tests/ui/intrinsics/const-eval-select-bad.stderr index bf91dc72cc1..85e22178c4a 100644 --- a/tests/ui/intrinsics/const-eval-select-bad.stderr +++ b/tests/ui/intrinsics/const-eval-select-bad.stderr @@ -16,20 +16,24 @@ LL | const_eval_select((), || {}, || {}); = note: expected a function item, found {closure@$DIR/const-eval-select-bad.rs:7:34: 7:36} = help: consult the documentation on `const_eval_select` for more information -error: this argument must be a function item +error[E0277]: expected a `FnOnce()` closure, found `{integer}` --> $DIR/const-eval-select-bad.rs:10:27 | LL | const_eval_select((), 42, 0xDEADBEEF); - | ^^ + | ----------------- ^^ expected an `FnOnce()` closure, found `{integer}` + | | + | required by a bound introduced by this call | - = note: expected a function item, found {integer} - = help: consult the documentation on `const_eval_select` for more information + = help: the trait `FnOnce<()>` is not implemented for `{integer}` + = note: wrap the `{integer}` in a closure with no arguments: `|| { /* code */ }` +note: required by a bound in `const_eval_select` + --> $SRC_DIR/core/src/intrinsics.rs:LL:COL error[E0277]: expected a `FnOnce()` closure, found `{integer}` - --> $DIR/const-eval-select-bad.rs:10:27 + --> $DIR/const-eval-select-bad.rs:10:31 | LL | const_eval_select((), 42, 0xDEADBEEF); - | ----------------- ^^ expected an `FnOnce()` closure, found `{integer}` + | ----------------- ^^^^^^^^^^ expected an `FnOnce()` closure, found `{integer}` | | | required by a bound introduced by this call | @@ -39,26 +43,22 @@ note: required by a bound in `const_eval_select` --> $SRC_DIR/core/src/intrinsics.rs:LL:COL error: this argument must be a function item - --> $DIR/const-eval-select-bad.rs:10:31 + --> $DIR/const-eval-select-bad.rs:10:27 | LL | const_eval_select((), 42, 0xDEADBEEF); - | ^^^^^^^^^^ + | ^^ | = note: expected a function item, found {integer} = help: consult the documentation on `const_eval_select` for more information -error[E0277]: expected a `FnOnce()` closure, found `{integer}` +error: this argument must be a function item --> $DIR/const-eval-select-bad.rs:10:31 | LL | const_eval_select((), 42, 0xDEADBEEF); - | ----------------- ^^^^^^^^^^ expected an `FnOnce()` closure, found `{integer}` - | | - | required by a bound introduced by this call + | ^^^^^^^^^^ | - = help: the trait `FnOnce<()>` is not implemented for `{integer}` - = note: wrap the `{integer}` in a closure with no arguments: `|| { /* code */ }` -note: required by a bound in `const_eval_select` - --> $SRC_DIR/core/src/intrinsics.rs:LL:COL + = note: expected a function item, found {integer} + = help: consult the documentation on `const_eval_select` for more information error[E0271]: expected `bar` to be a fn item that returns `i32`, but it returns `bool` --> $DIR/const-eval-select-bad.rs:32:34 diff --git a/tests/ui/issues/issue-22638.rs b/tests/ui/issues/issue-22638.rs index c2407227c2b..67fd147ae23 100644 --- a/tests/ui/issues/issue-22638.rs +++ b/tests/ui/issues/issue-22638.rs @@ -1,6 +1,7 @@ // build-fail // normalize-stderr-test: "<\{closure@.+`" -> "$$CLOSURE`" // normalize-stderr-test: ".nll/" -> "/" +// ignore-compare-mode-next-solver (hangs) #![allow(unused)] diff --git a/tests/ui/issues/issue-22638.stderr b/tests/ui/issues/issue-22638.stderr index a372078abd8..45290f6afe9 100644 --- a/tests/ui/issues/issue-22638.stderr +++ b/tests/ui/issues/issue-22638.stderr @@ -1,11 +1,11 @@ error: reached the recursion limit while instantiating `A::matches::$CLOSURE` - --> $DIR/issue-22638.rs:56:9 + --> $DIR/issue-22638.rs:57:9 | LL | a.matches(f) | ^^^^^^^^^^^^ | note: `A::matches` defined here - --> $DIR/issue-22638.rs:15:5 + --> $DIR/issue-22638.rs:16:5 | LL | pub fn matches<F: Fn()>(&self, f: &F) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/issues/issue-67552.rs b/tests/ui/issues/issue-67552.rs index 7336b873dd6..ec1997ccd5d 100644 --- a/tests/ui/issues/issue-67552.rs +++ b/tests/ui/issues/issue-67552.rs @@ -1,7 +1,6 @@ // build-fail // compile-flags: -Copt-level=0 // normalize-stderr-test: ".nll/" -> "/" -// ignore-compare-mode-next-solver (hangs) fn main() { rec(Empty); diff --git a/tests/ui/issues/issue-67552.stderr b/tests/ui/issues/issue-67552.stderr index 539bd45dbf1..1a8d7248b45 100644 --- a/tests/ui/issues/issue-67552.stderr +++ b/tests/ui/issues/issue-67552.stderr @@ -1,11 +1,11 @@ error: reached the recursion limit while instantiating `rec::<&mut &mut &mut &mut &mut ...>` - --> $DIR/issue-67552.rs:30:9 + --> $DIR/issue-67552.rs:29:9 | LL | rec(identity(&mut it)) | ^^^^^^^^^^^^^^^^^^^^^^ | note: `rec` defined here - --> $DIR/issue-67552.rs:23:1 + --> $DIR/issue-67552.rs:22:1 | LL | / fn rec<T>(mut it: T) LL | | where diff --git a/tests/ui/macros/issue-118786.rs b/tests/ui/macros/issue-118786.rs new file mode 100644 index 00000000000..84af3a65113 --- /dev/null +++ b/tests/ui/macros/issue-118786.rs @@ -0,0 +1,16 @@ +// compile-flags: --crate-type lib -O -C debug-assertions=yes + +// Regression test for issue 118786 + +macro_rules! make_macro { + ($macro_name:tt) => { + macro_rules! $macro_name { + //~^ ERROR macros that expand to items must be delimited with braces or followed by a semicolon + //~| ERROR macro expansion ignores token `{` and any following + //~| ERROR cannot find macro `macro_rules` in this scope + () => {} + } + } +} + +make_macro!((meow)); diff --git a/tests/ui/macros/issue-118786.stderr b/tests/ui/macros/issue-118786.stderr new file mode 100644 index 00000000000..ca3a40f31c1 --- /dev/null +++ b/tests/ui/macros/issue-118786.stderr @@ -0,0 +1,47 @@ +error: macros that expand to items must be delimited with braces or followed by a semicolon + --> $DIR/issue-118786.rs:7:22 + | +LL | macro_rules! $macro_name { + | ^^^^^^^^^^^ + | +help: change the delimiters to curly braces + | +LL | macro_rules! {} { + | ~ + +help: add a semicolon + | +LL | macro_rules! $macro_name; { + | + + +error: macro expansion ignores token `{` and any following + --> $DIR/issue-118786.rs:7:34 + | +LL | macro_rules! $macro_name { + | ^ +... +LL | make_macro!((meow)); + | ------------------- caused by the macro expansion here + | + = note: the usage of `make_macro!` is likely invalid in item context + +error: cannot find macro `macro_rules` in this scope + --> $DIR/issue-118786.rs:7:9 + | +LL | macro_rules! $macro_name { + | ^^^^^^^^^^^ +... +LL | make_macro!((meow)); + | ------------------- in this macro invocation + | +note: maybe you have forgotten to define a name for this `macro_rules!` + --> $DIR/issue-118786.rs:7:9 + | +LL | macro_rules! $macro_name { + | ^^^^^^^^^^^ +... +LL | make_macro!((meow)); + | ------------------- in this macro invocation + = note: this error originates in the macro `make_macro` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 3 previous errors + diff --git a/tests/ui/mir/lint/no-storage.rs b/tests/ui/mir/lint/no-storage.rs new file mode 100644 index 00000000000..246a0b34e5d --- /dev/null +++ b/tests/ui/mir/lint/no-storage.rs @@ -0,0 +1,30 @@ +// compile-flags: -Zlint-mir --crate-type=lib -Ztreat-err-as-bug +// failure-status: 101 +// dont-check-compiler-stderr +// regex-error-pattern: use of local .*, which has no storage here +#![feature(custom_mir, core_intrinsics)] +extern crate core; +use core::intrinsics::mir::*; + +#[custom_mir(dialect = "built")] +pub fn f(a: bool) { + mir!( + let b: (); + { + match a { true => bb1, _ => bb2 } + } + bb1 = { + StorageLive(b); + Goto(bb3) + } + bb2 = { + Goto(bb3) + } + bb3 = { + b = (); + RET = b; + StorageDead(b); + Return() + } + ) +} diff --git a/tests/ui/mir/validate/storage-live.rs b/tests/ui/mir/lint/storage-live.rs index ed3c26ed6da..f34a2c7de37 100644 --- a/tests/ui/mir/validate/storage-live.rs +++ b/tests/ui/mir/lint/storage-live.rs @@ -1,4 +1,4 @@ -// compile-flags: -Zvalidate-mir -Ztreat-err-as-bug +// compile-flags: -Zlint-mir -Ztreat-err-as-bug // failure-status: 101 // error-pattern: broken MIR in // error-pattern: StorageLive(_1) which already has storage here diff --git a/tests/ui/mir/validate/storage-live.stderr b/tests/ui/mir/lint/storage-live.stderr index 1037ddc88ef..1037ddc88ef 100644 --- a/tests/ui/mir/validate/storage-live.stderr +++ b/tests/ui/mir/lint/storage-live.stderr diff --git a/tests/ui/mir/lint/storage-return.rs b/tests/ui/mir/lint/storage-return.rs new file mode 100644 index 00000000000..a2f63b449b4 --- /dev/null +++ b/tests/ui/mir/lint/storage-return.rs @@ -0,0 +1,19 @@ +// compile-flags: -Zlint-mir -Ztreat-err-as-bug +// failure-status: 101 +// dont-check-compiler-stderr +// error-pattern: has storage when returning +#![feature(custom_mir, core_intrinsics)] +extern crate core; +use core::intrinsics::mir::*; + +#[custom_mir(dialect = "built")] +fn main() { + mir!( + let a: (); + { + StorageLive(a); + RET = a; + Return() + } + ) +} diff --git a/tests/ui/parser/bad-let-else-statement.rs b/tests/ui/parser/bad-let-else-statement.rs new file mode 100644 index 00000000000..7b927c89ba0 --- /dev/null +++ b/tests/ui/parser/bad-let-else-statement.rs @@ -0,0 +1,164 @@ +#![feature(inline_const)] +#![feature(yeet_expr)] +#![allow(incomplete_features)] // Necessary for now, while explicit_tail_calls is incomplete +#![feature(explicit_tail_calls)] + +fn a() { + let foo = { + 1 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn b() { + let foo = for i in 1..2 { + break; + } else { + //~^ ERROR `for...else` loops are not supported + return; + }; +} + +fn c() { + let foo = if true { + 1 + } else { + 0 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn d() { + let foo = loop { + break; + } else { + //~^ ERROR loop...else` loops are not supported + return; + }; +} + +fn e() { + let foo = match true { + true => 1, + false => 0 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +struct X {a: i32} +fn f() { + let foo = X { + a: 1 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn g() { + let foo = while false { + break; + } else { + //~^ ERROR `while...else` loops are not supported + return; + }; +} + +fn h() { + let foo = const { + 1 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn i() { + let foo = &{ + 1 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn j() { + let bar = 0; + let foo = bar = { + 1 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn k() { + let foo = 1 + { + 1 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn l() { + let foo = 1..{ + 1 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn m() { + let foo = return { + () + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn n() { + let foo = -{ + 1 + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn o() -> Result<(), ()> { + let foo = do yeet { + () + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return Ok(()); + }; +} + +fn p() { + let foo = become { + () + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn q() { + let foo = |x: i32| { + x + } else { + //~^ ERROR right curly brace `}` before `else` in a `let...else` statement not allowed + return; + }; +} + +fn main() {} diff --git a/tests/ui/parser/bad-let-else-statement.stderr b/tests/ui/parser/bad-let-else-statement.stderr new file mode 100644 index 00000000000..7cbda25e417 --- /dev/null +++ b/tests/ui/parser/bad-let-else-statement.stderr @@ -0,0 +1,232 @@ +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:9:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = ({ +LL | 1 +LL ~ }) else { + | + +error: `for...else` loops are not supported + --> $DIR/bad-let-else-statement.rs:18:7 + | +LL | let foo = for i in 1..2 { + | --- `else` is attached to this loop +LL | break; +LL | } else { + | _______^ +LL | | +LL | | return; +LL | | }; + | |_____^ + | + = note: consider moving this `else` clause to a separate `if` statement and use a `bool` variable to control if it should run + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:29:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = (if true { +LL | 1 +LL | } else { +LL | 0 +LL ~ }) else { + | + +error: `loop...else` loops are not supported + --> $DIR/bad-let-else-statement.rs:38:7 + | +LL | let foo = loop { + | ---- `else` is attached to this loop +LL | break; +LL | } else { + | _______^ +LL | | +LL | | return; +LL | | }; + | |_____^ + | + = note: consider moving this `else` clause to a separate `if` statement and use a `bool` variable to control if it should run + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:48:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = (match true { +LL | true => 1, +LL | false => 0 +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:58:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = (X { +LL | a: 1 +LL ~ }) else { + | + +error: `while...else` loops are not supported + --> $DIR/bad-let-else-statement.rs:67:7 + | +LL | let foo = while false { + | ----- `else` is attached to this loop +LL | break; +LL | } else { + | _______^ +LL | | +LL | | return; +LL | | }; + | |_____^ + | + = note: consider moving this `else` clause to a separate `if` statement and use a `bool` variable to control if it should run + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:76:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = (const { +LL | 1 +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:85:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = &({ +LL | 1 +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:95:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = bar = ({ +LL | 1 +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:104:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = 1 + ({ +LL | 1 +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:113:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = 1..({ +LL | 1 +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:122:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = return ({ +LL | () +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:131:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = -({ +LL | 1 +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:140:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = do yeet ({ +LL | () +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:149:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = become ({ +LL | () +LL ~ }) else { + | + +error: right curly brace `}` before `else` in a `let...else` statement not allowed + --> $DIR/bad-let-else-statement.rs:158:5 + | +LL | } else { + | ^ + | +help: wrap the expression in parentheses + | +LL ~ let foo = |x: i32| ({ +LL | x +LL ~ }) else { + | + +error: aborting due to 17 previous errors + diff --git a/tests/ui/parser/trait-item-with-defaultness-fail-semantic.rs b/tests/ui/parser/defaultness-invalid-places-fail-semantic.rs index f2d97b7bac3..bff53f66e19 100644 --- a/tests/ui/parser/trait-item-with-defaultness-fail-semantic.rs +++ b/tests/ui/parser/defaultness-invalid-places-fail-semantic.rs @@ -10,3 +10,7 @@ trait X { default fn f1(); //~ ERROR `default` is only allowed on items in trait impls default fn f2() {} //~ ERROR `default` is only allowed on items in trait impls } + +default const E: u8 = 0; //~ ERROR `default` is only allowed on items in trait impls +default type F = (); //~ ERROR `default` is only allowed on items in trait impls +default fn h() {} //~ ERROR `default` is only allowed on items in trait impls diff --git a/tests/ui/parser/trait-item-with-defaultness-fail-semantic.stderr b/tests/ui/parser/defaultness-invalid-places-fail-semantic.stderr index be858cd651d..41fad3a5de3 100644 --- a/tests/ui/parser/trait-item-with-defaultness-fail-semantic.stderr +++ b/tests/ui/parser/defaultness-invalid-places-fail-semantic.stderr @@ -1,5 +1,5 @@ error: `default` is only allowed on items in trait impls - --> $DIR/trait-item-with-defaultness-fail-semantic.rs:6:5 + --> $DIR/defaultness-invalid-places-fail-semantic.rs:6:5 | LL | default const A: u8; | -------^^^^^^^^^^^^^ @@ -7,7 +7,7 @@ LL | default const A: u8; | `default` because of this error: `default` is only allowed on items in trait impls - --> $DIR/trait-item-with-defaultness-fail-semantic.rs:7:5 + --> $DIR/defaultness-invalid-places-fail-semantic.rs:7:5 | LL | default const B: u8 = 0; | -------^^^^^^^^^^^^^^^^^ @@ -15,7 +15,7 @@ LL | default const B: u8 = 0; | `default` because of this error: `default` is only allowed on items in trait impls - --> $DIR/trait-item-with-defaultness-fail-semantic.rs:8:5 + --> $DIR/defaultness-invalid-places-fail-semantic.rs:8:5 | LL | default type D; | -------^^^^^^^^ @@ -23,7 +23,7 @@ LL | default type D; | `default` because of this error: `default` is only allowed on items in trait impls - --> $DIR/trait-item-with-defaultness-fail-semantic.rs:9:5 + --> $DIR/defaultness-invalid-places-fail-semantic.rs:9:5 | LL | default type C: Ord; | -------^^^^^^^^^^^^^ @@ -31,7 +31,7 @@ LL | default type C: Ord; | `default` because of this error: `default` is only allowed on items in trait impls - --> $DIR/trait-item-with-defaultness-fail-semantic.rs:10:5 + --> $DIR/defaultness-invalid-places-fail-semantic.rs:10:5 | LL | default fn f1(); | -------^^^^^^^^^ @@ -39,15 +39,39 @@ LL | default fn f1(); | `default` because of this error: `default` is only allowed on items in trait impls - --> $DIR/trait-item-with-defaultness-fail-semantic.rs:11:5 + --> $DIR/defaultness-invalid-places-fail-semantic.rs:11:5 | LL | default fn f2() {} | -------^^^^^^^^ | | | `default` because of this +error: `default` is only allowed on items in trait impls + --> $DIR/defaultness-invalid-places-fail-semantic.rs:14:1 + | +LL | default const E: u8 = 0; + | -------^^^^^^^^^^^^^^^^^ + | | + | `default` because of this + +error: `default` is only allowed on items in trait impls + --> $DIR/defaultness-invalid-places-fail-semantic.rs:15:1 + | +LL | default type F = (); + | -------^^^^^^^^^^^^^ + | | + | `default` because of this + +error: `default` is only allowed on items in trait impls + --> $DIR/defaultness-invalid-places-fail-semantic.rs:16:1 + | +LL | default fn h() {} + | -------^^^^^^^ + | | + | `default` because of this + warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes - --> $DIR/trait-item-with-defaultness-fail-semantic.rs:1:12 + --> $DIR/defaultness-invalid-places-fail-semantic.rs:1:12 | LL | #![feature(specialization)] | ^^^^^^^^^^^^^^ @@ -56,5 +80,5 @@ LL | #![feature(specialization)] = help: consider using `min_specialization` instead, which is more stable and complete = note: `#[warn(incomplete_features)]` on by default -error: aborting due to 6 previous errors; 1 warning emitted +error: aborting due to 9 previous errors; 1 warning emitted diff --git a/tests/ui/parser/recover/recover-fn-ptr-with-generics.rs b/tests/ui/parser/recover/recover-fn-ptr-with-generics.rs index 31de418be5f..76c56a715d2 100644 --- a/tests/ui/parser/recover/recover-fn-ptr-with-generics.rs +++ b/tests/ui/parser/recover/recover-fn-ptr-with-generics.rs @@ -21,7 +21,7 @@ fn main() { let _: extern fn<'a: 'static>(); //~^ ERROR function pointer types may not have generic parameters - //~| ERROR lifetime bounds cannot be used in this context + //~| ERROR bounds cannot be used in this context let _: for<'any> extern "C" fn<'u>(); //~^ ERROR function pointer types may not have generic parameters diff --git a/tests/ui/parser/recover/recover-fn-ptr-with-generics.stderr b/tests/ui/parser/recover/recover-fn-ptr-with-generics.stderr index 069fcffe9a0..6b6cb2d6bdd 100644 --- a/tests/ui/parser/recover/recover-fn-ptr-with-generics.stderr +++ b/tests/ui/parser/recover/recover-fn-ptr-with-generics.stderr @@ -100,7 +100,7 @@ error[E0412]: cannot find type `T` in this scope LL | type Identity = fn<T>(T) -> T; | ^ not found in this scope -error: lifetime bounds cannot be used in this context +error: bounds cannot be used in this context --> $DIR/recover-fn-ptr-with-generics.rs:22:26 | LL | let _: extern fn<'a: 'static>(); diff --git a/tests/ui/pattern/usefulness/impl-trait.rs b/tests/ui/pattern/usefulness/impl-trait.rs new file mode 100644 index 00000000000..ceb97315e9d --- /dev/null +++ b/tests/ui/pattern/usefulness/impl-trait.rs @@ -0,0 +1,155 @@ +#![feature(never_type)] +#![feature(exhaustive_patterns)] +#![feature(type_alias_impl_trait)] +#![feature(non_exhaustive_omitted_patterns_lint)] +#![deny(unreachable_patterns)] +// Test that the lint traversal handles opaques correctly +#![deny(non_exhaustive_omitted_patterns)] + +fn main() {} + +#[derive(Copy, Clone)] +enum Void {} + +fn return_never_rpit(x: Void) -> impl Copy { + if false { + match return_never_rpit(x) { + _ => {} //~ ERROR unreachable + } + } + x +} +fn friend_of_return_never_rpit(x: Void) { + match return_never_rpit(x) {} + //~^ ERROR non-empty +} + +type T = impl Copy; +fn return_never_tait(x: Void) -> T { + if false { + match return_never_tait(x) { + _ => {} //~ ERROR unreachable + } + } + x +} +fn friend_of_return_never_tait(x: Void) { + match return_never_tait(x) {} + //~^ ERROR non-empty +} + +fn option_never(x: Void) -> Option<impl Copy> { + if false { + match option_never(x) { + None => {} + Some(_) => {} //~ ERROR unreachable + } + match option_never(x) { + None => {} + _ => {} //~ ERROR unreachable + } + } + Some(x) +} + +fn option_never2(x: Void) -> impl Copy { + if false { + match option_never2(x) { + None => {} + Some(_) => {} //~ ERROR unreachable + } + match option_never2(x) { + None => {} + _ => {} //~ ERROR unreachable + } + match option_never2(x) { + None => {} + } + } + Some(x) +} + +fn inner_never(x: Void) { + type T = impl Copy; + let y: T = x; + match y { + _ => {} //~ ERROR unreachable + } +} + +// This one caused ICE https://github.com/rust-lang/rust/issues/117100. +fn inner_tuple() { + type T = impl Copy; + let foo: T = Some((1u32, 2u32)); + match foo { + _ => {} + Some((a, b)) => {} //~ ERROR unreachable + } +} + +type U = impl Copy; +fn unify_never(x: Void, u: U) -> U { + if false { + match u { + _ => {} //~ ERROR unreachable + } + } + x +} + +type V = impl Copy; +fn infer_in_match(x: Option<V>) { + match x { + None => {} + Some((a, b)) => {} + Some((mut x, mut y)) => { + //~^ ERROR unreachable + x = 42; + y = "foo"; + } + } +} + +type W = impl Copy; +#[derive(Copy, Clone)] +struct Rec<'a> { + n: u32, + w: Option<&'a W>, +} +fn recursive_opaque() -> W { + if false { + match recursive_opaque() { + // Check for the ol' ICE when the type is recursively opaque. + _ => {} + Rec { n: 0, w: Some(Rec { n: 0, w: _ }) } => {} //~ ERROR unreachable + } + } + let w: Option<&'static W> = None; + Rec { n: 0, w } +} + +type X = impl Copy; +struct SecretelyVoid(X); +fn nested_empty_opaque(x: Void) -> X { + if false { + let opaque_void = nested_empty_opaque(x); + let secretely_void = SecretelyVoid(opaque_void); + match secretely_void { + _ => {} //~ ERROR unreachable + } + } + x +} + +type Y = (impl Copy, impl Copy); +struct SecretelyDoubleVoid(Y); +fn super_nested_empty_opaque(x: Void) -> Y { + if false { + let opaque_void = super_nested_empty_opaque(x); + let secretely_void = SecretelyDoubleVoid(opaque_void); + match secretely_void { + _ => {} //~ ERROR unreachable + } + } + (x, x) +} diff --git a/tests/ui/pattern/usefulness/impl-trait.stderr b/tests/ui/pattern/usefulness/impl-trait.stderr new file mode 100644 index 00000000000..ba8b12f9f66 --- /dev/null +++ b/tests/ui/pattern/usefulness/impl-trait.stderr @@ -0,0 +1,119 @@ +error: unreachable pattern + --> $DIR/impl-trait.rs:17:13 + | +LL | _ => {} + | ^ + | +note: the lint level is defined here + --> $DIR/impl-trait.rs:5:9 + | +LL | #![deny(unreachable_patterns)] + | ^^^^^^^^^^^^^^^^^^^^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:31:13 + | +LL | _ => {} + | ^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:45:13 + | +LL | Some(_) => {} + | ^^^^^^^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:49:13 + | +LL | _ => {} + | ^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:59:13 + | +LL | Some(_) => {} + | ^^^^^^^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:63:13 + | +LL | _ => {} + | ^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:76:9 + | +LL | _ => {} + | ^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:86:9 + | +LL | _ => {} + | - matches any value +LL | Some((a, b)) => {} + | ^^^^^^^^^^^^ unreachable pattern + +error: unreachable pattern + --> $DIR/impl-trait.rs:94:13 + | +LL | _ => {} + | ^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:105:9 + | +LL | Some((mut x, mut y)) => { + | ^^^^^^^^^^^^^^^^^^^^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:124:13 + | +LL | _ => {} + | - matches any value +LL | Rec { n: 0, w: Some(Rec { n: 0, w: _ }) } => {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable pattern + +error: unreachable pattern + --> $DIR/impl-trait.rs:138:13 + | +LL | _ => {} + | ^ + +error: unreachable pattern + --> $DIR/impl-trait.rs:151:13 + | +LL | _ => {} + | ^ + +error[E0004]: non-exhaustive patterns: type `impl Copy` is non-empty + --> $DIR/impl-trait.rs:23:11 + | +LL | match return_never_rpit(x) {} + | ^^^^^^^^^^^^^^^^^^^^ + | + = note: the matched value is of type `impl Copy` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown + | +LL ~ match return_never_rpit(x) { +LL + _ => todo!(), +LL + } + | + +error[E0004]: non-exhaustive patterns: type `T` is non-empty + --> $DIR/impl-trait.rs:37:11 + | +LL | match return_never_tait(x) {} + | ^^^^^^^^^^^^^^^^^^^^ + | + = note: the matched value is of type `T` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown + | +LL ~ match return_never_tait(x) { +LL + _ => todo!(), +LL + } + | + +error: aborting due to 15 previous errors + +For more information about this error, try `rustc --explain E0004`. diff --git a/tests/ui/pattern/usefulness/issue-118437-exponential-time-on-diagonal-match.rs b/tests/ui/pattern/usefulness/issue-118437-exponential-time-on-diagonal-match.rs new file mode 100644 index 00000000000..39ad2d4abf3 --- /dev/null +++ b/tests/ui/pattern/usefulness/issue-118437-exponential-time-on-diagonal-match.rs @@ -0,0 +1,72 @@ +// check-pass +struct BaseCommand { + field01: bool, + field02: bool, + field03: bool, + field04: bool, + field05: bool, + field06: bool, + field07: bool, + field08: bool, + field09: bool, + field10: bool, + field11: bool, + field12: bool, + field13: bool, + field14: bool, + field15: bool, + field16: bool, + field17: bool, + field18: bool, + field19: bool, + field20: bool, + field21: bool, + field22: bool, + field23: bool, + field24: bool, + field25: bool, + field26: bool, + field27: bool, + field28: bool, + field29: bool, + field30: bool, +} + +fn request_key(command: BaseCommand) { + match command { + BaseCommand { field01: true, .. } => {} + BaseCommand { field02: true, .. } => {} + BaseCommand { field03: true, .. } => {} + BaseCommand { field04: true, .. } => {} + BaseCommand { field05: true, .. } => {} + BaseCommand { field06: true, .. } => {} + BaseCommand { field07: true, .. } => {} + BaseCommand { field08: true, .. } => {} + BaseCommand { field09: true, .. } => {} + BaseCommand { field10: true, .. } => {} + BaseCommand { field11: true, .. } => {} + BaseCommand { field12: true, .. } => {} + BaseCommand { field13: true, .. } => {} + BaseCommand { field14: true, .. } => {} + BaseCommand { field15: true, .. } => {} + BaseCommand { field16: true, .. } => {} + BaseCommand { field17: true, .. } => {} + BaseCommand { field18: true, .. } => {} + BaseCommand { field19: true, .. } => {} + BaseCommand { field20: true, .. } => {} + BaseCommand { field21: true, .. } => {} + BaseCommand { field22: true, .. } => {} + BaseCommand { field23: true, .. } => {} + BaseCommand { field24: true, .. } => {} + BaseCommand { field25: true, .. } => {} + BaseCommand { field26: true, .. } => {} + BaseCommand { field27: true, .. } => {} + BaseCommand { field28: true, .. } => {} + BaseCommand { field29: true, .. } => {} + BaseCommand { field30: true, .. } => {} + + _ => {} + } +} + +fn main() {} diff --git a/tests/ui/privacy/import-list-stem-visibility-issue-119126.rs b/tests/ui/privacy/import-list-stem-visibility-issue-119126.rs new file mode 100644 index 00000000000..21f7828fc84 --- /dev/null +++ b/tests/ui/privacy/import-list-stem-visibility-issue-119126.rs @@ -0,0 +1,14 @@ +// check-pass +// edition: 2018 + +mod outer { + mod inner { + pub mod inner2 {} + } + pub(crate) use inner::{}; + pub(crate) use inner::{{}}; + pub(crate) use inner::{inner2::{}}; + pub(crate) use inner::{inner2::{{}}}; +} + +fn main() {} diff --git a/tests/ui/privacy/unresolved-trait-impl-item.rs b/tests/ui/privacy/unresolved-trait-impl-item.rs new file mode 100644 index 00000000000..fea7c462a8e --- /dev/null +++ b/tests/ui/privacy/unresolved-trait-impl-item.rs @@ -0,0 +1,15 @@ +// edition:2018 + +trait MyTrait { + async fn resolved(&self); + const RESOLVED_WRONG: u8 = 0; +} + +impl MyTrait for i32 { + async fn resolved(&self) {} + + async fn unresolved(&self) {} //~ ERROR method `unresolved` is not a member of trait `MyTrait` + async fn RESOLVED_WRONG() {} //~ ERROR doesn't match its trait `MyTrait` +} + +fn main() {} diff --git a/tests/ui/privacy/unresolved-trait-impl-item.stderr b/tests/ui/privacy/unresolved-trait-impl-item.stderr new file mode 100644 index 00000000000..588e47c26bc --- /dev/null +++ b/tests/ui/privacy/unresolved-trait-impl-item.stderr @@ -0,0 +1,22 @@ +error[E0407]: method `unresolved` is not a member of trait `MyTrait` + --> $DIR/unresolved-trait-impl-item.rs:11:5 + | +LL | async fn unresolved(&self) {} + | ^^^^^^^^^----------^^^^^^^^^^ + | | | + | | help: there is an associated function with a similar name: `resolved` + | not a member of trait `MyTrait` + +error[E0324]: item `RESOLVED_WRONG` is an associated method, which doesn't match its trait `MyTrait` + --> $DIR/unresolved-trait-impl-item.rs:12:5 + | +LL | const RESOLVED_WRONG: u8 = 0; + | ----------------------------- item in trait +... +LL | async fn RESOLVED_WRONG() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ does not match trait + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0324, E0407. +For more information about an error, try `rustc --explain E0324`. diff --git a/tests/ui/recursion/issue-95134.rs b/tests/ui/recursion/issue-95134.rs index 7ee31d85c2b..2f1cffa2fa9 100644 --- a/tests/ui/recursion/issue-95134.rs +++ b/tests/ui/recursion/issue-95134.rs @@ -3,7 +3,6 @@ // compile-flags: -Copt-level=0 // dont-check-failure-status // dont-check-compiler-stderr -// ignore-compare-mode-next-solver (hangs) pub fn encode_num<Writer: ExampleWriter>(n: u32, mut writer: Writer) -> Result<(), Writer::Error> { if n > 15 { diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/drop-order.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/drop-order.rs new file mode 100644 index 00000000000..9bb25a66f09 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/drop-order.rs @@ -0,0 +1,59 @@ +// check drop order of temporaries create in match guards. +// For normal guards all temporaries are dropped before the body of the arm. +// For let guards temporaries live until the end of the arm. + +// run-pass + +#![feature(if_let_guard)] +#![allow(irrefutable_let_patterns)] + +use std::sync::Mutex; + +static A: Mutex<Vec<i32>> = Mutex::new(Vec::new()); + +struct D(i32); + +fn make_d(x: i32) -> D { + A.lock().unwrap().push(x); + D(x) +} + +impl Drop for D { + fn drop(&mut self) { + A.lock().unwrap().push(!self.0); + } +} + +fn if_guard(num: i32) { + let _d = make_d(1); + match num { + 1 | 2 if make_d(2).0 == 2 => { + make_d(3); + } + _ => {} + } +} + +fn if_let_guard(num: i32) { + let _d = make_d(1); + match num { + 1 | 2 if let D(ref _x) = make_d(2) => { + make_d(3); + } + _ => {} + } +} + +fn main() { + if_guard(1); + if_guard(2); + if_let_guard(1); + if_let_guard(2); + let expected = [ + 1, 2, !2, 3, !3, !1, + 1, 2, !2, 3, !3, !1, + 1, 2, 3, !3, !2, !1, + 1, 2, 3, !3, !2, !1, + ]; + assert_eq!(*A.lock().unwrap(), expected); +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/loop-mutability.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/loop-mutability.rs new file mode 100644 index 00000000000..349a24579a4 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/loop-mutability.rs @@ -0,0 +1,19 @@ +// check-pass + +#![feature(if_let_guard)] + +fn split_last(_: &()) -> Option<(&i32, &i32)> { + None +} + +fn assign_twice() { + loop { + match () { + #[allow(irrefutable_let_patterns)] + () if let _ = split_last(&()) => {} + _ => {} + } + } +} + +fn main() {} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/scoping-consistency-async.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/scoping-consistency-async.rs new file mode 100644 index 00000000000..86a170141f8 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/scoping-consistency-async.rs @@ -0,0 +1,32 @@ +// Check that temporaries in if-let guards are correctly scoped. +// Regression test for #116079. + +// build-pass +// edition:2018 +// -Zvalidate-mir + +#![feature(if_let_guard)] + +static mut A: [i32; 5] = [1, 2, 3, 4, 5]; + +async fn fun() { + unsafe { + match A { + _ => (), + i if let Some(1) = async { Some(1) }.await => (), + _ => (), + } + } +} + +async fn funner() { + unsafe { + match A { + _ => (), + _ | _ if let Some(1) = async { Some(1) }.await => (), + _ => (), + } + } +} + +fn main() {} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/scoping-consistency.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/scoping-consistency.rs new file mode 100644 index 00000000000..37fe610637e --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/scoping-consistency.rs @@ -0,0 +1,24 @@ +// Check that temporaries in if-let guards are correctly scoped. + +// build-pass +// -Zvalidate-mir + +#![feature(if_let_guard)] + +fn fun() { + match 0 { + _ => (), + _ if let Some(s) = std::convert::identity(&Some(String::new())) => {} + _ => (), + } +} + +fn funner() { + match 0 { + _ => (), + _ | _ if let Some(s) = std::convert::identity(&Some(String::new())) => {} + _ => (), + } +} + +fn main() {} diff --git a/tests/ui/rfcs/rfc-2361-dbg-macro/dbg-macro-expected-behavior.run.stderr b/tests/ui/rfcs/rfc-2361-dbg-macro/dbg-macro-expected-behavior.run.stderr index 1a26f34a52d..2c018ca875d 100644 --- a/tests/ui/rfcs/rfc-2361-dbg-macro/dbg-macro-expected-behavior.run.stderr +++ b/tests/ui/rfcs/rfc-2361-dbg-macro/dbg-macro-expected-behavior.run.stderr @@ -1,28 +1,28 @@ -[$DIR/dbg-macro-expected-behavior.rs:22] Unit = Unit -[$DIR/dbg-macro-expected-behavior.rs:23] a = Unit -[$DIR/dbg-macro-expected-behavior.rs:29] Point { x: 42, y: 24 } = Point { +[$DIR/dbg-macro-expected-behavior.rs:22:19] Unit = Unit +[$DIR/dbg-macro-expected-behavior.rs:23:19] a = Unit +[$DIR/dbg-macro-expected-behavior.rs:29:24] Point { x: 42, y: 24 } = Point { x: 42, y: 24, } -[$DIR/dbg-macro-expected-behavior.rs:30] b = Point { +[$DIR/dbg-macro-expected-behavior.rs:30:24] b = Point { x: 42, y: 24, } -[$DIR/dbg-macro-expected-behavior.rs:38] -[$DIR/dbg-macro-expected-behavior.rs:42] &a = NoCopy( +[$DIR/dbg-macro-expected-behavior.rs:38:17] +[$DIR/dbg-macro-expected-behavior.rs:42:27] &a = NoCopy( 1337, ) -[$DIR/dbg-macro-expected-behavior.rs:42] dbg!(&a) = NoCopy( +[$DIR/dbg-macro-expected-behavior.rs:42:22] dbg!(&a) = NoCopy( 1337, ) -[$DIR/dbg-macro-expected-behavior.rs:47] f(&42) = 42 +[$DIR/dbg-macro-expected-behavior.rs:47:18] f(&42) = 42 before -[$DIR/dbg-macro-expected-behavior.rs:52] { foo += 1; eprintln!("before"); 7331 } = 7331 -[$DIR/dbg-macro-expected-behavior.rs:60] ("Yeah",) = ( +[$DIR/dbg-macro-expected-behavior.rs:52:22] { foo += 1; eprintln!("before"); 7331 } = 7331 +[$DIR/dbg-macro-expected-behavior.rs:60:27] ("Yeah",) = ( "Yeah", ) -[$DIR/dbg-macro-expected-behavior.rs:63] 1 = 1 -[$DIR/dbg-macro-expected-behavior.rs:63] 2 = 2 -[$DIR/dbg-macro-expected-behavior.rs:67] 1u8 = 1 -[$DIR/dbg-macro-expected-behavior.rs:67] 2u32 = 2 -[$DIR/dbg-macro-expected-behavior.rs:67] "Yeah" = "Yeah" +[$DIR/dbg-macro-expected-behavior.rs:63:29] 1 = 1 +[$DIR/dbg-macro-expected-behavior.rs:63:29] 2 = 2 +[$DIR/dbg-macro-expected-behavior.rs:67:37] 1u8 = 1 +[$DIR/dbg-macro-expected-behavior.rs:67:37] 2u32 = 2 +[$DIR/dbg-macro-expected-behavior.rs:67:37] "Yeah" = "Yeah" diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.stderr index 60cd000f2d8..e72d259e8a5 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.stderr @@ -5,6 +5,7 @@ LL | a.plus(b) | ^^^^^^^ | = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error[E0015]: cannot call non-const operator in constants --> $DIR/call-const-trait-method-pass.rs:39:22 @@ -18,6 +19,7 @@ note: impl defined here, but it is not `const` LL | impl const std::ops::Add for Int { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: calls in constants are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 2 previous errors diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/call.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/call.rs index 5f48c235373..e85976b7e1d 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/call.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/call.rs @@ -1,6 +1,6 @@ // check-pass -#![feature(const_closures, const_trait_impl)] +#![feature(const_closures, const_trait_impl, effects)] #![allow(incomplete_features)] pub const _: () = { diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/cross-crate-default-method-body-is-const.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/cross-crate-default-method-body-is-const.rs index bde8bf20f46..34a0ba1e271 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/cross-crate-default-method-body-is-const.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/cross-crate-default-method-body-is-const.rs @@ -3,7 +3,7 @@ // // check-pass -#![feature(const_trait_impl)] +#![feature(const_trait_impl, effects)] // aux-build: cross-crate.rs extern crate cross_crate; diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const_closure-const_trait_impl-ice-113381.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const_closure-const_trait_impl-ice-113381.rs index 6598d1da0f8..7d811a2cc1f 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const_closure-const_trait_impl-ice-113381.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const_closure-const_trait_impl-ice-113381.rs @@ -1,3 +1,5 @@ +// check-pass +// FIXME(effects) this shouldn't pass #![feature(const_closures, const_trait_impl, effects)] #![allow(incomplete_features)] @@ -11,5 +13,5 @@ impl Foo for () { fn main() { (const || { (()).foo() })(); - //~^ ERROR: cannot call non-const fn + // FIXME(effects) ~^ ERROR: cannot call non-const fn } diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const_closure-const_trait_impl-ice-113381.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const_closure-const_trait_impl-ice-113381.stderr deleted file mode 100644 index 413e217020d..00000000000 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const_closure-const_trait_impl-ice-113381.stderr +++ /dev/null @@ -1,11 +0,0 @@ -error[E0015]: cannot call non-const fn `<() as Foo>::foo` in constant functions - --> $DIR/const_closure-const_trait_impl-ice-113381.rs:13:22 - | -LL | (const || { (()).foo() })(); - | ^^^^^ - | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants - -error: aborting due to 1 previous error - -For more information about this error, try `rustc --explain E0015`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/ice-112822-expected-type-for-param.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/ice-112822-expected-type-for-param.rs new file mode 100644 index 00000000000..61e31fc9786 --- /dev/null +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/ice-112822-expected-type-for-param.rs @@ -0,0 +1,16 @@ +#![feature(const_trait_impl, effects)] + +const fn test() -> impl ~const Fn() { //~ ERROR ~const can only be applied to `#[const_trait]` traits + const move || { //~ ERROR const closures are experimental + let sl: &[u8] = b"foo"; + + match sl { + [first, remainder @ ..] => { + assert_eq!(first, &b'f'); + } + [] => panic!(), + } + } +} + +fn main() {} diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/ice-112822-expected-type-for-param.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/ice-112822-expected-type-for-param.stderr new file mode 100644 index 00000000000..65808212314 --- /dev/null +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/ice-112822-expected-type-for-param.stderr @@ -0,0 +1,18 @@ +error[E0658]: const closures are experimental + --> $DIR/ice-112822-expected-type-for-param.rs:4:5 + | +LL | const move || { + | ^^^^^ + | + = note: see issue #106003 <https://github.com/rust-lang/rust/issues/106003> for more information + = help: add `#![feature(const_closures)]` to the crate attributes to enable + +error: ~const can only be applied to `#[const_trait]` traits + --> $DIR/ice-112822-expected-type-for-param.rs:3:32 + | +LL | const fn test() -> impl ~const Fn() { + | ^^^^ + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/minicore.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/minicore.rs index 2a2e8cec3f0..59fb48e794c 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/minicore.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/minicore.rs @@ -1,12 +1,13 @@ // check-pass #![crate_type = "lib"] -#![feature(no_core, lang_items, unboxed_closures, auto_traits, intrinsics, rustc_attrs)] +#![feature(no_core, lang_items, unboxed_closures, auto_traits, intrinsics, rustc_attrs, staged_api)] #![feature(fundamental)] #![feature(const_trait_impl, effects, const_mut_refs)] #![allow(internal_features)] #![no_std] #![no_core] +#![stable(feature = "minicore", since = "1.0.0")] #[lang = "sized"] trait Sized {} @@ -82,6 +83,7 @@ trait FnMut<Args: Tuple>: ~const FnOnce<Args> { #[lang = "fn_once"] #[rustc_paren_sugar] trait FnOnce<Args: Tuple> { + #[lang = "fn_once_output"] type Output; extern "rust-call" fn call_once(self, args: Args) -> Self::Output; @@ -93,7 +95,7 @@ struct ConstFnMutClosure<CapturedData, Function> { } #[lang = "tuple_trait"] -pub trait Tuple {} +trait Tuple {} macro_rules! impl_fn_mut_tuple { ($($var:ident)*) => { @@ -509,3 +511,17 @@ trait StructuralPartialEq {} trait StructuralEq {} const fn drop<T: ~const Destruct>(_: T) {} + +extern "rust-intrinsic" { + #[rustc_const_stable(feature = "const_eval_select", since = "1.0.0")] + fn const_eval_select<ARG: Tuple, F, G, RET>( + arg: ARG, + called_in_const: F, + called_at_rt: G, + ) -> RET + /* where clauses enforced by built-in method confirmation: + where + F: const FnOnce<Arg, Output = RET>, + G: FnOnce<Arg, Output = RET>, + */; +} diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/generic-bound.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/generic-bound.stderr index 1e8a70ffd29..f42fee59bf0 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/generic-bound.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/generic-bound.stderr @@ -10,6 +10,7 @@ note: impl defined here, but it is not `const` LL | impl<T> const std::ops::Add for S<T> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 1 previous error diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-102985.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-102985.stderr index 077f6c7b234..0fa4c8fe04c 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-102985.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-102985.stderr @@ -4,7 +4,9 @@ error[E0015]: cannot call non-const closure in constants LL | n => n(), | ^^^ | + = note: closures need an RFC before allowed to be called in constants = note: calls in constants are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 1 previous error diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-79450.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-79450.rs index b604c65d751..269fd87ba0d 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-79450.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-79450.rs @@ -1,5 +1,5 @@ #![feature(const_fmt_arguments_new)] -#![feature(const_trait_impl)] +#![feature(const_trait_impl, effects)] #[const_trait] trait Tr { diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-88155.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-88155.stderr index 157b54214fa..e5347a09598 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-88155.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-88155.stderr @@ -5,6 +5,7 @@ LL | T::assoc() | ^^^^^^^^^^ | = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 1 previous error diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.gated.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.gated.stderr index 89e59e5db6e..28254ac15a8 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.gated.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.gated.stderr @@ -6,6 +6,7 @@ LL | "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in | = note: `str` cannot be compared in compile-time, and therefore cannot be used in `match`es = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 1 previous error diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/non-const-op-const-closure-non-const-outer.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/non-const-op-const-closure-non-const-outer.stderr index 97ad83130d4..d82a49be75e 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/non-const-op-const-closure-non-const-outer.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/non-const-op-const-closure-non-const-outer.stderr @@ -5,6 +5,7 @@ LL | (const || { (()).foo() })(); | ^^^^^ | = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = help: add `#![feature(effects)]` to the crate attributes to enable error: aborting due to 1 previous error diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness-2.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness-2.rs index ada475909a3..e0c20b819e8 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness-2.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness-2.rs @@ -1,4 +1,4 @@ -#![feature(const_trait_impl, min_specialization, rustc_attrs)] +#![feature(const_trait_impl, effects, min_specialization, rustc_attrs)] // known-bug: #110395 #[rustc_specialization_trait] #[const_trait] diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness-2.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness-2.stderr index 0b35feddc55..5210a694201 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness-2.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/specializing-constness-2.stderr @@ -1,11 +1,12 @@ -error[E0015]: cannot call non-const fn `<T as A>::a` in constant functions - --> $DIR/specializing-constness-2.rs:27:5 +error[E0119]: conflicting implementations of trait `A` + --> $DIR/specializing-constness-2.rs:20:1 | -LL | <T as A>::a(); - | ^^^^^^^^^^^^^ - | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants +LL | impl<T: Default> A for T { + | ------------------------ first implementation here +... +LL | impl<T: Default + ~const Sup> const A for T { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0015`. +For more information about this error, try `rustc --explain E0119`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.nn.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.nn.stderr index 12bcdb034bc..fd4d7ff3475 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.nn.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.nn.stderr @@ -1,23 +1,23 @@ error: `~const` is not allowed here - --> $DIR/super-traits-fail-2.rs:11:12 + --> $DIR/super-traits-fail-2.rs:10:12 | LL | trait Bar: ~const Foo {} | ^^^^^^ | note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds - --> $DIR/super-traits-fail-2.rs:11:1 + --> $DIR/super-traits-fail-2.rs:10:1 | LL | trait Bar: ~const Foo {} | ^^^^^^^^^^^^^^^^^^^^^^^^ error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-2.rs:11:19 + --> $DIR/super-traits-fail-2.rs:10:19 | LL | trait Bar: ~const Foo {} | ^^^ error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-2.rs:11:19 + --> $DIR/super-traits-fail-2.rs:10:19 | LL | trait Bar: ~const Foo {} | ^^^ diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.ny.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.ny.stderr index b60399c57dc..d2e3a5cec1d 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.ny.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.ny.stderr @@ -1,11 +1,11 @@ error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-2.rs:11:19 + --> $DIR/super-traits-fail-2.rs:10:19 | LL | trait Bar: ~const Foo {} | ^^^ error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-2.rs:11:19 + --> $DIR/super-traits-fail-2.rs:10:19 | LL | trait Bar: ~const Foo {} | ^^^ diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.rs index 93fd96f8f29..3820d069243 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.rs @@ -1,5 +1,4 @@ -#![feature(const_trait_impl)] -// known-bug: #110395 +#![feature(const_trait_impl, effects)] // revisions: yy yn ny nn #[cfg_attr(any(yy, yn), const_trait)] @@ -9,12 +8,14 @@ trait Foo { #[cfg_attr(any(yy, ny), const_trait)] trait Bar: ~const Foo {} -// FIXME [ny,nn]~^ ERROR: ~const can only be applied to `#[const_trait]` -// FIXME [ny,nn]~| ERROR: ~const can only be applied to `#[const_trait]` +//[ny,nn]~^ ERROR: ~const can only be applied to `#[const_trait]` +//[ny,nn]~| ERROR: ~const can only be applied to `#[const_trait]` +//[yn,nn]~^^^ ERROR: `~const` is not allowed here const fn foo<T: Bar>(x: &T) { x.a(); - // FIXME [yn,yy]~^ ERROR the trait bound + //[yy,yn]~^ ERROR mismatched types + // FIXME(effects) diagnostic } fn main() {} diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr index e465ebaffa8..c05c4d50a33 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr @@ -1,14 +1,24 @@ error: `~const` is not allowed here - --> $DIR/super-traits-fail-2.rs:11:12 + --> $DIR/super-traits-fail-2.rs:10:12 | LL | trait Bar: ~const Foo {} | ^^^^^^ | note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds - --> $DIR/super-traits-fail-2.rs:11:1 + --> $DIR/super-traits-fail-2.rs:10:1 | LL | trait Bar: ~const Foo {} | ^^^^^^^^^^^^^^^^^^^^^^^^ -error: aborting due to 1 previous error +error[E0308]: mismatched types + --> $DIR/super-traits-fail-2.rs:16:5 + | +LL | x.a(); + | ^^^^^ expected `host`, found `true` + | + = note: expected constant `host` + found constant `true` + +error: aborting due to 2 previous errors +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yy.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yy.stderr index 1faa5b4dd2c..852c02cad5c 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yy.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yy.stderr @@ -1,11 +1,12 @@ -error[E0015]: cannot call non-const fn `<T as Foo>::a` in constant functions - --> $DIR/super-traits-fail-2.rs:16:7 +error[E0308]: mismatched types + --> $DIR/super-traits-fail-2.rs:16:5 | LL | x.a(); - | ^^^ + | ^^^^^ expected `host`, found `true` | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = note: expected constant `host` + found constant `true` error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0015`. +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.nn.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.nn.stderr index e10c51ef45a..199d2199c4a 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.nn.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.nn.stderr @@ -1,23 +1,23 @@ error: `~const` is not allowed here - --> $DIR/super-traits-fail-3.rs:13:12 + --> $DIR/super-traits-fail-3.rs:12:12 | LL | trait Bar: ~const Foo {} | ^^^^^^ | note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds - --> $DIR/super-traits-fail-3.rs:13:1 + --> $DIR/super-traits-fail-3.rs:12:1 | LL | trait Bar: ~const Foo {} | ^^^^^^^^^^^^^^^^^^^^^^^^ error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-3.rs:13:19 + --> $DIR/super-traits-fail-3.rs:12:19 | LL | trait Bar: ~const Foo {} | ^^^ error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-3.rs:13:19 + --> $DIR/super-traits-fail-3.rs:12:19 | LL | trait Bar: ~const Foo {} | ^^^ @@ -25,7 +25,7 @@ LL | trait Bar: ~const Foo {} = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-3.rs:18:24 + --> $DIR/super-traits-fail-3.rs:17:24 | LL | const fn foo<T: ~const Bar>(x: &T) { | ^^^ diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.ny.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.ny.stderr index cd0ee73277d..46eedc333f1 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.ny.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.ny.stderr @@ -1,11 +1,11 @@ error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-3.rs:13:19 + --> $DIR/super-traits-fail-3.rs:12:19 | LL | trait Bar: ~const Foo {} | ^^^ error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-3.rs:13:19 + --> $DIR/super-traits-fail-3.rs:12:19 | LL | trait Bar: ~const Foo {} | ^^^ diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.rs index 5994057b2db..3e98e131930 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.rs @@ -1,8 +1,7 @@ -#![feature(const_trait_impl)] +#![feature(const_trait_impl, effects)] // revisions: yy yn ny nn -//[yy] known-bug: #110395 -//FIXME [yy] check-pass +//[yy] check-pass #[cfg_attr(any(yy, yn), const_trait)] trait Foo { diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yn.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yn.stderr index 34f6515b572..dc08a899738 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yn.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yn.stderr @@ -1,17 +1,17 @@ error: `~const` is not allowed here - --> $DIR/super-traits-fail-3.rs:13:12 + --> $DIR/super-traits-fail-3.rs:12:12 | LL | trait Bar: ~const Foo {} | ^^^^^^ | note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds - --> $DIR/super-traits-fail-3.rs:13:1 + --> $DIR/super-traits-fail-3.rs:12:1 | LL | trait Bar: ~const Foo {} | ^^^^^^^^^^^^^^^^^^^^^^^^ error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-3.rs:18:24 + --> $DIR/super-traits-fail-3.rs:17:24 | LL | const fn foo<T: ~const Bar>(x: &T) { | ^^^ diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yy.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yy.stderr deleted file mode 100644 index 5cccc025161..00000000000 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yy.stderr +++ /dev/null @@ -1,11 +0,0 @@ -error[E0015]: cannot call non-const fn `<T as Foo>::a` in constant functions - --> $DIR/super-traits-fail-3.rs:20:7 - | -LL | x.a(); - | ^^^ - | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants - -error: aborting due to 1 previous error - -For more information about this error, try `rustc --explain E0015`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs index bbe1194f7a3..5ecb75094f0 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs @@ -52,4 +52,7 @@ trait Child1 where Self: ~const Trait {} //~ ERROR `~const` is not allowed // non-const impl impl<T: ~const Trait> Trait for T {} //~ ERROR `~const` is not allowed +// inherent impl (regression test for issue #117004) +impl<T: ~const Trait> Struct<T> {} //~ ERROR `~const` is not allowed + fn main() {} diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr index c6e18924fd8..497ec5bcf84 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr @@ -194,6 +194,18 @@ note: this impl is not `const`, so it cannot have `~const` trait bounds LL | impl<T: ~const Trait> Trait for T {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:56:9 + | +LL | impl<T: ~const Trait> Struct<T> {} + | ^^^^^^ + | +note: inherent impls cannot have `~const` trait bounds + --> $DIR/tilde-const-invalid-places.rs:56:1 + | +LL | impl<T: ~const Trait> Struct<T> {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + error[E0658]: generic const items are experimental --> $DIR/tilde-const-invalid-places.rs:19:15 | @@ -239,6 +251,6 @@ LL | type Type<T: ~const Trait> = (); = note: see issue #8995 <https://github.com/rust-lang/rust/issues/8995> for more information = help: add `#![feature(inherent_associated_types)]` to the crate attributes to enable -error: aborting due to 26 previous errors +error: aborting due to 27 previous errors For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde_const_on_impl_bound.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde_const_on_impl_bound.rs index fbdc3a4f370..bfd9fe42e67 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde_const_on_impl_bound.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde_const_on_impl_bound.rs @@ -1,5 +1,4 @@ -// known-bug: #110395 -// FIXME check-pass +// check-pass #![feature(const_trait_impl, effects)] #[const_trait] @@ -9,8 +8,8 @@ trait Foo { struct Bar<T>(T); -impl<T: ~const Foo> Bar<T> { - const fn foo(&self) { +impl<T> Bar<T> { + const fn foo(&self) where T: ~const Foo { self.0.foo() } } diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde_const_on_impl_bound.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde_const_on_impl_bound.stderr deleted file mode 100644 index 0925bfa7e57..00000000000 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde_const_on_impl_bound.stderr +++ /dev/null @@ -1,12 +0,0 @@ -error[E0308]: mismatched types - --> $DIR/tilde_const_on_impl_bound.rs:14:9 - | -LL | self.0.foo() - | ^^^^^^^^^^^^ expected `host`, found `true` - | - = note: expected constant `host` - found constant `true` - -error: aborting due to 1 previous error - -For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-default-body-stability.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-default-body-stability.rs index 8d56295e738..aa3b09ec966 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-default-body-stability.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-default-body-stability.rs @@ -1,7 +1,7 @@ // known-bug: #110395 #![feature(staged_api)] -#![feature(const_trait_impl)] +#![feature(const_trait_impl, effects)] #![feature(const_t_try)] #![feature(const_try)] #![feature(try_trait_v2)] diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-default-body-stability.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-default-body-stability.stderr index deed05ae179..62c4bc3b7ae 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-default-body-stability.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-default-body-stability.stderr @@ -1,29 +1,39 @@ -error[E0015]: `?` cannot determine the branch of `T` in constant functions - --> $DIR/trait-default-body-stability.rs:44:9 +error: const `impl` for trait `Try` which is not marked with `#[const_trait]` + --> $DIR/trait-default-body-stability.rs:18:12 | -LL | T? - | ^^ +LL | impl const Try for T { + | ^^^ | -note: impl defined here, but it is not `const` - --> $DIR/trait-default-body-stability.rs:18:1 + = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: adding a non-const method body in the future would be a breaking change + +error: const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` + --> $DIR/trait-default-body-stability.rs:33:12 | -LL | impl const Try for T { - | ^^^^^^^^^^^^^^^^^^^^ - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants +LL | impl const FromResidual for T { + | ^^^^^^^^^^^^ + | + = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: adding a non-const method body in the future would be a breaking change -error[E0015]: `?` cannot convert from residual of `T` in constant functions - --> $DIR/trait-default-body-stability.rs:44:9 +error[E0207]: the const parameter `host` is not constrained by the impl trait, self type, or predicates + --> $DIR/trait-default-body-stability.rs:18:6 | -LL | T? - | ^^ +LL | impl const Try for T { + | ^^^^^ unconstrained const parameter | -note: impl defined here, but it is not `const` - --> $DIR/trait-default-body-stability.rs:33:1 + = note: expressions using a const parameter must map each value to a distinct output value + = note: proving the result of expressions other than the parameter are unique is not supported + +error[E0207]: the const parameter `host` is not constrained by the impl trait, self type, or predicates + --> $DIR/trait-default-body-stability.rs:33:6 | LL | impl const FromResidual for T { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + | ^^^^^ unconstrained const parameter + | + = note: expressions using a const parameter must map each value to a distinct output value + = note: proving the result of expressions other than the parameter are unique is not supported -error: aborting due to 2 previous errors +error: aborting due to 4 previous errors -For more information about this error, try `rustc --explain E0015`. +For more information about this error, try `rustc --explain E0207`. diff --git a/tests/ui/stats/hir-stats.stderr b/tests/ui/stats/hir-stats.stderr index e6da83296ce..070dbbb10bb 100644 --- a/tests/ui/stats/hir-stats.stderr +++ b/tests/ui/stats/hir-stats.stderr @@ -15,20 +15,20 @@ ast-stats-1 Arm 96 ( 1.5%) 2 48 ast-stats-1 ForeignItem 96 ( 1.5%) 1 96 ast-stats-1 - Fn 96 ( 1.5%) 1 ast-stats-1 FnDecl 120 ( 1.8%) 5 24 -ast-stats-1 FieldDef 160 ( 2.5%) 2 80 -ast-stats-1 Stmt 160 ( 2.5%) 5 32 +ast-stats-1 FieldDef 160 ( 2.4%) 2 80 +ast-stats-1 Stmt 160 ( 2.4%) 5 32 ast-stats-1 - Local 32 ( 0.5%) 1 ast-stats-1 - MacCall 32 ( 0.5%) 1 ast-stats-1 - Expr 96 ( 1.5%) 3 -ast-stats-1 Param 160 ( 2.5%) 4 40 +ast-stats-1 Param 160 ( 2.4%) 4 40 ast-stats-1 Block 192 ( 2.9%) 6 32 ast-stats-1 Variant 208 ( 3.2%) 2 104 -ast-stats-1 GenericBound 256 ( 3.9%) 4 64 -ast-stats-1 - Trait 256 ( 3.9%) 4 +ast-stats-1 GenericBound 288 ( 4.4%) 4 72 +ast-stats-1 - Trait 288 ( 4.4%) 4 ast-stats-1 AssocItem 352 ( 5.4%) 4 88 ast-stats-1 - Type 176 ( 2.7%) 2 ast-stats-1 - Fn 176 ( 2.7%) 2 -ast-stats-1 GenericParam 480 ( 7.4%) 5 96 +ast-stats-1 GenericParam 480 ( 7.3%) 5 96 ast-stats-1 Pat 504 ( 7.7%) 7 72 ast-stats-1 - Struct 72 ( 1.1%) 1 ast-stats-1 - Wild 72 ( 1.1%) 1 @@ -45,15 +45,15 @@ ast-stats-1 - Ptr 64 ( 1.0%) 1 ast-stats-1 - Ref 64 ( 1.0%) 1 ast-stats-1 - ImplicitSelf 128 ( 2.0%) 2 ast-stats-1 - Path 640 ( 9.8%) 10 -ast-stats-1 Item 1_224 (18.8%) 9 136 +ast-stats-1 Item 1_224 (18.7%) 9 136 ast-stats-1 - Trait 136 ( 2.1%) 1 ast-stats-1 - Enum 136 ( 2.1%) 1 ast-stats-1 - ForeignMod 136 ( 2.1%) 1 ast-stats-1 - Impl 136 ( 2.1%) 1 ast-stats-1 - Fn 272 ( 4.2%) 2 -ast-stats-1 - Use 408 ( 6.3%) 3 +ast-stats-1 - Use 408 ( 6.2%) 3 ast-stats-1 ---------------------------------------------------------------- -ast-stats-1 Total 6_520 +ast-stats-1 Total 6_552 ast-stats-1 ast-stats-2 POST EXPANSION AST STATS ast-stats-2 Name Accumulated Size Count Item Size @@ -81,16 +81,16 @@ ast-stats-2 - Expr 96 ( 1.3%) 3 ast-stats-2 Param 160 ( 2.2%) 4 40 ast-stats-2 Block 192 ( 2.7%) 6 32 ast-stats-2 Variant 208 ( 2.9%) 2 104 -ast-stats-2 GenericBound 256 ( 3.6%) 4 64 -ast-stats-2 - Trait 256 ( 3.6%) 4 +ast-stats-2 GenericBound 288 ( 4.0%) 4 72 +ast-stats-2 - Trait 288 ( 4.0%) 4 ast-stats-2 AssocItem 352 ( 4.9%) 4 88 ast-stats-2 - Type 176 ( 2.5%) 2 ast-stats-2 - Fn 176 ( 2.5%) 2 ast-stats-2 GenericParam 480 ( 6.7%) 5 96 -ast-stats-2 Pat 504 ( 7.1%) 7 72 +ast-stats-2 Pat 504 ( 7.0%) 7 72 ast-stats-2 - Struct 72 ( 1.0%) 1 ast-stats-2 - Wild 72 ( 1.0%) 1 -ast-stats-2 - Ident 360 ( 5.1%) 5 +ast-stats-2 - Ident 360 ( 5.0%) 5 ast-stats-2 Expr 648 ( 9.1%) 9 72 ast-stats-2 - Path 72 ( 1.0%) 1 ast-stats-2 - Match 72 ( 1.0%) 1 @@ -99,12 +99,12 @@ ast-stats-2 - InlineAsm 72 ( 1.0%) 1 ast-stats-2 - Lit 144 ( 2.0%) 2 ast-stats-2 - Block 216 ( 3.0%) 3 ast-stats-2 PathSegment 792 (11.1%) 33 24 -ast-stats-2 Ty 896 (12.6%) 14 64 +ast-stats-2 Ty 896 (12.5%) 14 64 ast-stats-2 - Ptr 64 ( 0.9%) 1 ast-stats-2 - Ref 64 ( 0.9%) 1 ast-stats-2 - ImplicitSelf 128 ( 1.8%) 2 -ast-stats-2 - Path 640 ( 9.0%) 10 -ast-stats-2 Item 1_496 (21.0%) 11 136 +ast-stats-2 - Path 640 ( 8.9%) 10 +ast-stats-2 Item 1_496 (20.9%) 11 136 ast-stats-2 - Trait 136 ( 1.9%) 1 ast-stats-2 - Enum 136 ( 1.9%) 1 ast-stats-2 - ExternCrate 136 ( 1.9%) 1 @@ -113,7 +113,7 @@ ast-stats-2 - Impl 136 ( 1.9%) 1 ast-stats-2 - Fn 272 ( 3.8%) 2 ast-stats-2 - Use 544 ( 7.6%) 4 ast-stats-2 ---------------------------------------------------------------- -ast-stats-2 Total 7_120 +ast-stats-2 Total 7_152 ast-stats-2 hir-stats HIR STATS hir-stats Name Accumulated Size Count Item Size diff --git a/tests/ui/suggestions/suggest-trait-in-ufcs-in-hrtb.stderr b/tests/ui/suggestions/suggest-trait-in-ufcs-in-hrtb.stderr index c0f0c414227..cabaa76a886 100644 --- a/tests/ui/suggestions/suggest-trait-in-ufcs-in-hrtb.stderr +++ b/tests/ui/suggestions/suggest-trait-in-ufcs-in-hrtb.stderr @@ -2,7 +2,14 @@ error[E0223]: ambiguous associated type --> $DIR/suggest-trait-in-ufcs-in-hrtb.rs:5:38 | LL | impl<S> Foo for Bar<S> where for<'a> <&'a S>::Item: Foo {} - | ^^^^^^^^^^^^^ help: use fully-qualified syntax: `<&'a S as IntoIterator>::Item` + | ^^^^^^^^^^^^^ + | +help: use fully-qualified syntax + | +LL | impl<S> Foo for Bar<S> where for<'a> <&'a S as IntoAsyncIterator>::Item: Foo {} + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +LL | impl<S> Foo for Bar<S> where for<'a> <&'a S as IntoIterator>::Item: Foo {} + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: aborting due to 1 previous error diff --git a/tests/ui/thir-print/thir-tree-match.stdout b/tests/ui/thir-print/thir-tree-match.stdout index 60c9283abcf..e752e4a8702 100644 --- a/tests/ui/thir-print/thir-tree-match.stdout +++ b/tests/ui/thir-print/thir-tree-match.stdout @@ -124,7 +124,7 @@ body: body: Expr { ty: bool - temp_lifetime: Some(Node(13)) + temp_lifetime: Some(Node(12)) span: $DIR/thir-tree-match.rs:17:36: 17:40 (#0) kind: Scope { @@ -133,7 +133,7 @@ body: value: Expr { ty: bool - temp_lifetime: Some(Node(13)) + temp_lifetime: Some(Node(12)) span: $DIR/thir-tree-match.rs:17:36: 17:40 (#0) kind: Literal( lit: Spanned { node: Bool(true), span: $DIR/thir-tree-match.rs:17:36: 17:40 (#0) }, neg: false) @@ -176,7 +176,7 @@ body: body: Expr { ty: bool - temp_lifetime: Some(Node(19)) + temp_lifetime: Some(Node(18)) span: $DIR/thir-tree-match.rs:18:27: 18:32 (#0) kind: Scope { @@ -185,7 +185,7 @@ body: value: Expr { ty: bool - temp_lifetime: Some(Node(19)) + temp_lifetime: Some(Node(18)) span: $DIR/thir-tree-match.rs:18:27: 18:32 (#0) kind: Literal( lit: Spanned { node: Bool(false), span: $DIR/thir-tree-match.rs:18:27: 18:32 (#0) }, neg: false) @@ -220,7 +220,7 @@ body: body: Expr { ty: bool - temp_lifetime: Some(Node(24)) + temp_lifetime: Some(Node(23)) span: $DIR/thir-tree-match.rs:19:24: 19:28 (#0) kind: Scope { @@ -229,7 +229,7 @@ body: value: Expr { ty: bool - temp_lifetime: Some(Node(24)) + temp_lifetime: Some(Node(23)) span: $DIR/thir-tree-match.rs:19:24: 19:28 (#0) kind: Literal( lit: Spanned { node: Bool(true), span: $DIR/thir-tree-match.rs:19:24: 19:28 (#0) }, neg: false) diff --git a/tests/ui/track-diagnostics/track.rs b/tests/ui/track-diagnostics/track.rs index 97bd7789a63..08f926610d7 100644 --- a/tests/ui/track-diagnostics/track.rs +++ b/tests/ui/track-diagnostics/track.rs @@ -1,5 +1,7 @@ // compile-flags: -Z track-diagnostics // error-pattern: created at +// rustc-env:RUST_BACKTRACE=0 +// failure-status: 101 // Normalize the emitted location so this doesn't need // updating everytime someone adds or removes a line. diff --git a/tests/ui/track-diagnostics/track.stderr b/tests/ui/track-diagnostics/track.stderr index 60254dc475b..54b1ea2764a 100644 --- a/tests/ui/track-diagnostics/track.stderr +++ b/tests/ui/track-diagnostics/track.stderr @@ -13,15 +13,31 @@ LL | break rust -Ztrack-diagnostics: created at compiler/rustc_passes/src/loops.rs:LL:CC error: internal compiler error: It looks like you're trying to break rust; would you like some ICE? + --> $DIR/track.rs:LL:CC + | +LL | break rust + | ^^^^^^^^^^ +-Ztrack-diagnostics: created at compiler/rustc_hir_typeck/src/lib.rs:LL:CC + | + = note: the compiler expectedly panicked. this is a feature. + = note: we would appreciate a joke overview: https://github.com/rust-lang/rust/issues/43162#issuecomment-320764675 + = note: rustc $VERSION running on $TARGET + = note: compiler flags: ... -Z ui-testing ... -Z track-diagnostics -note: the compiler expectedly panicked. this is a feature. +thread 'rustc' panicked at compiler/rustc_hir_typeck/src/lib.rs:LL:CC: +Box<dyn Any> +note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace -note: we would appreciate a joke overview: https://github.com/rust-lang/rust/issues/43162#issuecomment-320764675 +note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md note: rustc $VERSION running on $TARGET note: compiler flags: ... -Z ui-testing ... -Z track-diagnostics +query stack during panic: +#0 [typeck] type-checking `main` +#1 [analysis] running analysis passes on this crate +end of query stack error: aborting due to 3 previous errors Some errors have detailed explanations: E0268, E0425. diff --git a/tests/ui/traits/issue-117794.rs b/tests/ui/traits/issue-117794.rs new file mode 100644 index 00000000000..a66d6eb10ed --- /dev/null +++ b/tests/ui/traits/issue-117794.rs @@ -0,0 +1,10 @@ +trait Foo {} + +trait T { + fn a(&self) -> impl Foo { + self.b(|| 0) + //~^ ERROR no method named `b` found for reference `&Self` in the current scope + } +} + +fn main() {} diff --git a/tests/ui/traits/issue-117794.stderr b/tests/ui/traits/issue-117794.stderr new file mode 100644 index 00000000000..af63b47f07d --- /dev/null +++ b/tests/ui/traits/issue-117794.stderr @@ -0,0 +1,9 @@ +error[E0599]: no method named `b` found for reference `&Self` in the current scope + --> $DIR/issue-117794.rs:5:14 + | +LL | self.b(|| 0) + | ^ help: there is a method with a similar name: `a` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0599`. diff --git a/tests/ui/traits/issue-90662-projection-caching.rs b/tests/ui/traits/issue-90662-projection-caching.rs index 879f30071bf..e08ab53fbb0 100644 --- a/tests/ui/traits/issue-90662-projection-caching.rs +++ b/tests/ui/traits/issue-90662-projection-caching.rs @@ -1,7 +1,15 @@ +// revisions: old next +//[next] compile-flags: -Znext-solver=coherence // check-pass // Regression test for issue #90662 -// Tests that projection caching does not cause a spurious error +// Tests that projection caching does not cause a spurious error. +// Coherence relies on the following overflowing goal to still constrain +// `?0` to `dyn Service`. +// +// Projection(<ServiceImpl as Provider<TestModule>>::Interface. ?0) +// +// cc https://github.com/rust-lang/trait-system-refactor-initiative/issues/70. trait HasProvider<T: ?Sized> {} trait Provider<M> { diff --git a/tests/ui/traits/next-solver/alias-bound-unsound.rs b/tests/ui/traits/next-solver/alias-bound-unsound.rs index 565bfe1186e..4e279a84a33 100644 --- a/tests/ui/traits/next-solver/alias-bound-unsound.rs +++ b/tests/ui/traits/next-solver/alias-bound-unsound.rs @@ -23,7 +23,7 @@ fn main() { let x = String::from("hello, world"); drop(<() as Foo>::copy_me(&x)); //~^ ERROR overflow evaluating the requirement `<() as Foo>::Item: Sized` - //~| ERROR overflow evaluating the requirement `<() as Foo>::Item normalizes-to _` + //~| ERROR overflow evaluating the requirement `<() as Foo>::Item == _` //~| ERROR overflow evaluating the requirement `<() as Foo>::Item well-formed` //~| ERROR overflow evaluating the requirement `String <: <() as Foo>::Item` //~| ERROR overflow evaluating the requirement `&<() as Foo>::Item well-formed` diff --git a/tests/ui/traits/next-solver/alias-bound-unsound.stderr b/tests/ui/traits/next-solver/alias-bound-unsound.stderr index b09c22f3f41..ac3f19b3fe6 100644 --- a/tests/ui/traits/next-solver/alias-bound-unsound.stderr +++ b/tests/ui/traits/next-solver/alias-bound-unsound.stderr @@ -19,7 +19,7 @@ LL | drop(<() as Foo>::copy_me(&x)); | = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`alias_bound_unsound`) -error[E0275]: overflow evaluating the requirement `<() as Foo>::Item normalizes-to _` +error[E0275]: overflow evaluating the requirement `<() as Foo>::Item == _` --> $DIR/alias-bound-unsound.rs:24:10 | LL | drop(<() as Foo>::copy_me(&x)); @@ -59,7 +59,6 @@ LL | drop(<() as Foo>::copy_me(&x)); | ^^^^^^^^^^^^^^^^^^^^^^^^ | = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`alias_bound_unsound`) - = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error: aborting due to 7 previous errors diff --git a/tests/ui/traits/next-solver/coerce-ambig-alias-to-rigid-alias.rs b/tests/ui/traits/next-solver/coerce-ambig-alias-to-rigid-alias.rs new file mode 100644 index 00000000000..bcb48b5acc7 --- /dev/null +++ b/tests/ui/traits/next-solver/coerce-ambig-alias-to-rigid-alias.rs @@ -0,0 +1,15 @@ +// compile-flags: -Znext-solver +// check-pass + +trait Trait { + type Assoc; +} + +fn call<T: Trait>(_: <T as Trait>::Assoc, _: T) {} + +fn foo<T: Trait>(rigid: <T as Trait>::Assoc, t: T) { + // Check that we can coerce `<?0 as Trait>::Assoc` to `<T as Trait>::Assoc`. + call::<_ /* ?0 */>(rigid, t); +} + +fn main() {} diff --git a/tests/ui/traits/next-solver/object-unsafety.rs b/tests/ui/traits/next-solver/object-unsafety.rs index 8aae7217398..cfa53948b97 100644 --- a/tests/ui/traits/next-solver/object-unsafety.rs +++ b/tests/ui/traits/next-solver/object-unsafety.rs @@ -13,7 +13,6 @@ pub fn copy_any<T>(t: &T) -> T { //~^ ERROR the type `&<dyn Setup<From = T> as Setup>::From` is not well-formed //~| ERROR the trait bound `dyn Setup<From = T>: Setup` is not satisfied //~| ERROR mismatched types - //~| ERROR mismatched types //~| ERROR the type `<dyn Setup<From = T> as Setup>::From` is not well-formed //~| ERROR the size for values of type `<dyn Setup<From = T> as Setup>::From` cannot be known at compilation time diff --git a/tests/ui/traits/next-solver/object-unsafety.stderr b/tests/ui/traits/next-solver/object-unsafety.stderr index 914a8f9d4c5..ee38c256e5f 100644 --- a/tests/ui/traits/next-solver/object-unsafety.stderr +++ b/tests/ui/traits/next-solver/object-unsafety.stderr @@ -36,20 +36,6 @@ note: function defined here LL | fn copy<U: Setup + ?Sized>(from: &U::From) -> U::From { | ^^^^ -------------- -error[E0308]: mismatched types - --> $DIR/object-unsafety.rs:12:5 - | -LL | pub fn copy_any<T>(t: &T) -> T { - | - - expected `T` because of return type - | | - | expected this type parameter -LL | copy::<dyn Setup<From=T>>(t) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ types differ - | - = note: expected type parameter `T` - found associated type `<dyn Setup<From = T> as Setup>::From` - = note: you might be missing a type parameter or trait bound - error: the type `<dyn Setup<From = T> as Setup>::From` is not well-formed --> $DIR/object-unsafety.rs:12:5 | @@ -72,7 +58,7 @@ help: consider further restricting the associated type LL | pub fn copy_any<T>(t: &T) -> T where <dyn Setup<From = T> as Setup>::From: Sized { | +++++++++++++++++++++++++++++++++++++++++++++++++ -error: aborting due to 6 previous errors +error: aborting due to 5 previous errors Some errors have detailed explanations: E0277, E0308. For more information about an error, try `rustc --explain E0277`. diff --git a/tests/ui/traits/next-solver/overflow/recursion-limit-normalizes-to-constraints.rs b/tests/ui/traits/next-solver/overflow/recursion-limit-normalizes-to-constraints.rs new file mode 100644 index 00000000000..03ef93dc233 --- /dev/null +++ b/tests/ui/traits/next-solver/overflow/recursion-limit-normalizes-to-constraints.rs @@ -0,0 +1,25 @@ +// compile-flags: -Znext-solver=coherence +// check-pass + +// A regression test for trait-system-refactor-initiative#70. + +trait Trait { + type Assoc; +} + +struct W<T: ?Sized>(*mut T); +impl<T: ?Sized> Trait for W<W<T>> +where + W<T>: Trait, +{ + type Assoc = (); +} + +trait NoOverlap {} +impl<T: Trait<Assoc = u32>> NoOverlap for T {} +// `Projection(<W<_> as Trait>::Assoc, u32)` should result in error even +// though applying the impl results in overflow. This is necessary to match +// the behavior of the old solver. +impl<T: ?Sized> NoOverlap for W<T> {} + +fn main() {} diff --git a/tests/ui/traits/non_lifetime_binders/bounds-on-type-binders.rs b/tests/ui/traits/non_lifetime_binders/bounds-on-type-binders.rs new file mode 100644 index 00000000000..2535eb99c59 --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/bounds-on-type-binders.rs @@ -0,0 +1,14 @@ +// check-fail + +#![allow(incomplete_features)] +#![feature(non_lifetime_binders)] + +trait Trait {} + +trait Trait2 +where + for<T: Trait> ():, +{ //~^ ERROR bounds cannot be used in this context +} + +fn main() {} diff --git a/tests/ui/traits/non_lifetime_binders/bounds-on-type-binders.stderr b/tests/ui/traits/non_lifetime_binders/bounds-on-type-binders.stderr new file mode 100644 index 00000000000..0a2f4cea614 --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/bounds-on-type-binders.stderr @@ -0,0 +1,8 @@ +error: bounds cannot be used in this context + --> $DIR/bounds-on-type-binders.rs:10:12 + | +LL | for<T: Trait> ():, + | ^^^^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/type-alias-impl-trait/self-referential-3.rs b/tests/ui/type-alias-impl-trait/self-referential-3.rs index 18f09b54867..922ac662071 100644 --- a/tests/ui/type-alias-impl-trait/self-referential-3.rs +++ b/tests/ui/type-alias-impl-trait/self-referential-3.rs @@ -1,3 +1,5 @@ +// ignore-compare-mode-next-solver (hangs) + #![feature(type_alias_impl_trait)] type Bar<'a, 'b> = impl PartialEq<Bar<'a, 'b>> + std::fmt::Debug; diff --git a/tests/ui/type-alias-impl-trait/self-referential-3.stderr b/tests/ui/type-alias-impl-trait/self-referential-3.stderr index 15ebcdafca6..32eac622e51 100644 --- a/tests/ui/type-alias-impl-trait/self-referential-3.stderr +++ b/tests/ui/type-alias-impl-trait/self-referential-3.stderr @@ -1,5 +1,5 @@ error[E0277]: can't compare `&i32` with `Bar<'a, 'b>` - --> $DIR/self-referential-3.rs:5:31 + --> $DIR/self-referential-3.rs:7:31 | LL | fn bar<'a, 'b>(i: &'a i32) -> Bar<'a, 'b> { | ^^^^^^^^^^^ no implementation for `&i32 == Bar<'a, 'b>` diff --git a/tests/ui/type-alias-impl-trait/self-referential-4.rs b/tests/ui/type-alias-impl-trait/self-referential-4.rs index 36742c8ad57..caa9e33bad0 100644 --- a/tests/ui/type-alias-impl-trait/self-referential-4.rs +++ b/tests/ui/type-alias-impl-trait/self-referential-4.rs @@ -1,3 +1,5 @@ +// ignore-compare-mode-next-solver (hangs) + #![feature(type_alias_impl_trait)] type Bar<'a, 'b> = impl PartialEq<Bar<'b, 'static>> + std::fmt::Debug; diff --git a/tests/ui/type-alias-impl-trait/self-referential-4.stderr b/tests/ui/type-alias-impl-trait/self-referential-4.stderr index 98c762e3d38..e7f9e232a27 100644 --- a/tests/ui/type-alias-impl-trait/self-referential-4.stderr +++ b/tests/ui/type-alias-impl-trait/self-referential-4.stderr @@ -1,5 +1,5 @@ error[E0277]: can't compare `&i32` with `Bar<'b, 'static>` - --> $DIR/self-referential-4.rs:5:31 + --> $DIR/self-referential-4.rs:7:31 | LL | fn bar<'a, 'b>(i: &'a i32) -> Bar<'a, 'b> { | ^^^^^^^^^^^ no implementation for `&i32 == Bar<'b, 'static>` @@ -10,7 +10,7 @@ LL | i = help: the trait `PartialEq` is implemented for `i32` error[E0277]: can't compare `&i32` with `Foo<'static, 'b>` - --> $DIR/self-referential-4.rs:11:31 + --> $DIR/self-referential-4.rs:13:31 | LL | fn foo<'a, 'b>(i: &'a i32) -> Foo<'a, 'b> { | ^^^^^^^^^^^ no implementation for `&i32 == Foo<'static, 'b>` @@ -21,7 +21,7 @@ LL | i = help: the trait `PartialEq` is implemented for `i32` error[E0277]: can't compare `&i32` with `Moo<'static, 'a>` - --> $DIR/self-referential-4.rs:17:31 + --> $DIR/self-referential-4.rs:19:31 | LL | fn moo<'a, 'b>(i: &'a i32) -> Moo<'a, 'b> { | ^^^^^^^^^^^ no implementation for `&i32 == Moo<'static, 'a>` diff --git a/tests/ui/type-alias-impl-trait/self-referential.rs b/tests/ui/type-alias-impl-trait/self-referential.rs index 34b7c24df9f..0900d7279ca 100644 --- a/tests/ui/type-alias-impl-trait/self-referential.rs +++ b/tests/ui/type-alias-impl-trait/self-referential.rs @@ -1,3 +1,5 @@ +// ignore-compare-mode-next-solver (hangs) + #![feature(type_alias_impl_trait)] type Bar<'a, 'b> = impl PartialEq<Bar<'b, 'a>> + std::fmt::Debug; diff --git a/tests/ui/type-alias-impl-trait/self-referential.stderr b/tests/ui/type-alias-impl-trait/self-referential.stderr index 9a17d495b62..27506b8d06f 100644 --- a/tests/ui/type-alias-impl-trait/self-referential.stderr +++ b/tests/ui/type-alias-impl-trait/self-referential.stderr @@ -1,5 +1,5 @@ error[E0277]: can't compare `&i32` with `Bar<'b, 'a>` - --> $DIR/self-referential.rs:5:31 + --> $DIR/self-referential.rs:7:31 | LL | fn bar<'a, 'b>(i: &'a i32) -> Bar<'a, 'b> { | ^^^^^^^^^^^ no implementation for `&i32 == Bar<'b, 'a>` @@ -11,7 +11,7 @@ LL | i = help: the trait `PartialEq` is implemented for `i32` error[E0277]: can't compare `&i32` with `(i32, Foo<'a, 'b>::{opaque#0})` - --> $DIR/self-referential.rs:12:31 + --> $DIR/self-referential.rs:14:31 | LL | fn foo<'a, 'b>(i: &'a i32) -> Foo<'a, 'b> { | ^^^^^^^^^^^ no implementation for `&i32 == (i32, Foo<'a, 'b>::{opaque#0})` @@ -23,7 +23,7 @@ LL | (42, i) = help: the trait `PartialEq` is implemented for `i32` error[E0277]: can't compare `&i32` with `(i32, Moo<'b, 'a>::{opaque#0})` - --> $DIR/self-referential.rs:19:31 + --> $DIR/self-referential.rs:21:31 | LL | fn moo<'a, 'b>(i: &'a i32) -> Moo<'a, 'b> { | ^^^^^^^^^^^ no implementation for `&i32 == (i32, Moo<'b, 'a>::{opaque#0})` diff --git a/tests/ui/typeck/issue-110052.stderr b/tests/ui/typeck/issue-110052.stderr index b25b6c0c0b7..5eb10d9a30e 100644 --- a/tests/ui/typeck/issue-110052.stderr +++ b/tests/ui/typeck/issue-110052.stderr @@ -2,7 +2,14 @@ error[E0223]: ambiguous associated type --> $DIR/issue-110052.rs:6:30 | LL | for<'iter> dyn Validator<<&'iter I>::Item>:, - | ^^^^^^^^^^^^^^^^ help: use fully-qualified syntax: `<&'iter I as IntoIterator>::Item` + | ^^^^^^^^^^^^^^^^ + | +help: use fully-qualified syntax + | +LL | for<'iter> dyn Validator<<&'iter I as IntoAsyncIterator>::Item>:, + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +LL | for<'iter> dyn Validator<<&'iter I as IntoIterator>::Item>:, + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: aborting due to 1 previous error diff --git a/triagebot.toml b/triagebot.toml index 2867bbc8171..27b174454b4 100644 --- a/triagebot.toml +++ b/triagebot.toml @@ -605,19 +605,19 @@ cc = ["@davidtwco", "@wesleywiser"] message = """ This PR modifies `src/bootstrap/src/core/config`. -If appropriate, please update `CONFIG_CHANGE_HISTORY` in `src/bootstrap/src/utils/change_tracker.rs` and `change-id` in `config.example.toml`. +If appropriate, please update `CONFIG_CHANGE_HISTORY` in `src/bootstrap/src/utils/change_tracker.rs`. """ [mentions."src/bootstrap/defaults"] message = """ This PR modifies `src/bootstrap/defaults`. -If appropriate, please update `CONFIG_CHANGE_HISTORY` in `src/bootstrap/src/utils/change_tracker.rs` and `change-id` in `config.example.toml`. +If appropriate, please update `CONFIG_CHANGE_HISTORY` in `src/bootstrap/src/utils/change_tracker.rs`. """ [mentions."config.example.toml"] message = """ This PR modifies `config.example.toml`. -If appropriate, please update `CONFIG_CHANGE_HISTORY` in `src/bootstrap/src/utils/change_tracker.rs` and `change-id` in `config.example.toml`. +If appropriate, please update `CONFIG_CHANGE_HISTORY` in `src/bootstrap/src/utils/change_tracker.rs`. """ [mentions."src/bootstrap/defaults/config.compiler.toml"] @@ -639,7 +639,7 @@ cc = ["@nnethercote"] [assign] warn_non_default_branch = true contributing_url = "https://rustc-dev-guide.rust-lang.org/getting-started.html" -users_on_vacation = ["jyn514", "oli-obk"] +users_on_vacation = ["jyn514", "oli-obk", "spastorino"] [assign.adhoc_groups] compiler-team = [ |