diff options
707 files changed, 10436 insertions, 6713 deletions
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index ebbed11d04b..b93166b80a5 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -309,7 +309,7 @@ jobs: NO_DEBUG_ASSERTIONS: 1 NO_OVERFLOW_CHECKS: 1 DIST_REQUIRE_ALL_TOOLS: 1 - os: macos-latest + os: macos-12-xl - name: dist-apple-various env: SCRIPT: "./x.py dist bootstrap --include-default-paths --host='' --target=aarch64-apple-ios,x86_64-apple-ios,aarch64-apple-ios-sim" @@ -320,7 +320,7 @@ jobs: NO_LLVM_ASSERTIONS: 1 NO_DEBUG_ASSERTIONS: 1 NO_OVERFLOW_CHECKS: 1 - os: macos-latest + os: macos-12-xl - name: dist-x86_64-apple-alt env: SCRIPT: "./x.py dist bootstrap --include-default-paths" @@ -331,7 +331,7 @@ jobs: NO_LLVM_ASSERTIONS: 1 NO_DEBUG_ASSERTIONS: 1 NO_OVERFLOW_CHECKS: 1 - os: macos-latest + os: macos-12-xl - name: x86_64-apple-1 env: SCRIPT: "./x.py --stage 2 test --exclude src/test/ui --exclude src/test/rustdoc --exclude src/test/run-make-fulldeps" @@ -342,7 +342,7 @@ jobs: NO_LLVM_ASSERTIONS: 1 NO_DEBUG_ASSERTIONS: 1 NO_OVERFLOW_CHECKS: 1 - os: macos-latest + os: macos-12-xl - name: x86_64-apple-2 env: SCRIPT: "./x.py --stage 2 test src/test/ui src/test/rustdoc src/test/run-make-fulldeps" @@ -353,7 +353,7 @@ jobs: NO_LLVM_ASSERTIONS: 1 NO_DEBUG_ASSERTIONS: 1 NO_OVERFLOW_CHECKS: 1 - os: macos-latest + os: macos-12-xl - name: dist-aarch64-apple env: SCRIPT: "./x.py dist bootstrap --include-default-paths --stage 2" @@ -368,7 +368,7 @@ jobs: NO_OVERFLOW_CHECKS: 1 DIST_REQUIRE_ALL_TOOLS: 1 JEMALLOC_SYS_WITH_LG_PAGE: 14 - os: macos-latest + os: macos-12-xl - name: x86_64-msvc-1 env: RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-msvc --enable-profiler" diff --git a/Cargo.lock b/Cargo.lock index 7d43dbc9e06..970b1719aa1 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -93,6 +93,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "98161a4e3e2184da77bb14f02184cdd111e83bbbcc9979dfee3c44b9a85f5602" [[package]] +name = "ar_archive_writer" +version = "0.1.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "276881980556fdadeb88aa1ffc667e4d2e8fe72531dfabcb7a82bb3c9ea9ba31" +dependencies = [ + "object", +] + +[[package]] name = "array_tool" version = "1.0.3" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -906,9 +915,9 @@ version = "0.0.0" [[package]] name = "cpufeatures" -version = "0.2.1" +version = "0.2.5" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "95059428f66df56b63431fdb4e1947ed2190586af5c5a8a8b71122bdf5a7f469" +checksum = "28d997bd5e24a5928dd43e46dc529867e207907fe0b239c3477d924f7f2ca320" dependencies = [ "libc", ] @@ -1086,12 +1095,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "56254986775e3233ffa9c4d7d3faaf6d36a2c09d30b20687e9f88bc8bafc16c8" [[package]] -name = "difference" -version = "2.0.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "524cbf6897b527295dff137cec09ecf3a05f4fddffd7dfcd1585403449e74198" - -[[package]] name = "digest" version = "0.10.2" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -1163,6 +1166,12 @@ dependencies = [ ] [[package]] +name = "dissimilar" +version = "1.0.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "8c97b9233581d84b8e1e689cdd3a47b6f69770084fc246e86a7f78b0d9c1d4a5" + +[[package]] name = "dlmalloc" version = "0.2.3" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -1283,11 +1292,11 @@ dependencies = [ [[package]] name = "expect-test" -version = "1.0.1" +version = "1.4.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ceb96f3eaa0d4e8769c52dacfd4eb60183b817ed2f176171b3c691d5022b0f2e" +checksum = "1d4661aca38d826eb7c72fe128e4238220616de4c0cc00db7bfc38e2e1364dd3" dependencies = [ - "difference", + "dissimilar", "once_cell", ] @@ -2076,9 +2085,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55" [[package]] name = "libc" -version = "0.2.135" +version = "0.2.138" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "68783febc7782c6c5cb401fbda4de5a9898be1762314da0bb2c10ced61f18b0c" +checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8" dependencies = [ "rustc-std-workspace-core", ] @@ -3495,6 +3504,7 @@ dependencies = [ name = "rustc_codegen_ssa" version = "0.0.0" dependencies = [ + "ar_archive_writer", "bitflags", "cc", "itertools", @@ -5346,9 +5356,9 @@ checksum = "56dee185309b50d1f11bfedef0fe6d036842e3fb77413abef29f8f8d1c5d4c1c" [[package]] name = "ui_test" -version = "0.4.0" +version = "0.5.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "bf4559da3fe6b481f8674a29379677cb9606cd6f75fc254a2c9834c55638503d" +checksum = "54ddb6f31025943e2f9d59237f433711c461a43d9415974c3eb3a4902edc1c1f" dependencies = [ "bstr 1.0.1", "cargo_metadata 0.15.0", diff --git a/LICENSES/LLVM-exception.txt b/LICENSES/LLVM-exception.txt new file mode 100644 index 00000000000..fa4b725a0ee --- /dev/null +++ b/LICENSES/LLVM-exception.txt @@ -0,0 +1,15 @@ +---- LLVM Exceptions to the Apache 2.0 License ---- + + As an exception, if, as a result of your compiling your source code, portions + of this Software are embedded into an Object form of such source code, you + may redistribute such embedded portions in such Object form without complying + with the conditions of Sections 4(a), 4(b) and 4(d) of the License. + + In addition, if you combine or link compiled forms of this Software with + software that is licensed under the GPLv2 ("Combined Software") and if a + court of competent jurisdiction determines that the patent provision (Section + 3), the indemnity provision (Section 9) or other Section of the License + conflicts with the conditions of the GPLv2, you may retroactively and + prospectively choose to deem waived or otherwise exclude such Section(s) of + the License, but only in their entirety and only with respect to the Combined + Software. diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs index 11e7b80f85e..9c2cf58efed 100644 --- a/compiler/rustc_abi/src/layout.rs +++ b/compiler/rustc_abi/src/layout.rs @@ -354,7 +354,7 @@ pub trait LayoutCalculator { if !always_sized { StructKind::MaybeUnsized } else { StructKind::AlwaysSized } }; - let mut st = self.univariant(dl, &variants[v], &repr, kind)?; + let mut st = self.univariant(dl, &variants[v], repr, kind)?; st.variants = Variants::Single { index: v }; if is_unsafe_cell { @@ -457,7 +457,7 @@ pub trait LayoutCalculator { let mut variant_layouts = variants .iter_enumerated() .map(|(j, v)| { - let mut st = self.univariant(dl, v, &repr, StructKind::AlwaysSized)?; + let mut st = self.univariant(dl, v, repr, StructKind::AlwaysSized)?; st.variants = Variants::Single { index: j }; align = align.max(st.align); @@ -647,8 +647,8 @@ pub trait LayoutCalculator { .map(|(i, field_layouts)| { let mut st = self.univariant( dl, - &field_layouts, - &repr, + field_layouts, + repr, StructKind::Prefixed(min_ity.size(), prefix_align), )?; st.variants = Variants::Single { index: i }; @@ -755,7 +755,7 @@ pub trait LayoutCalculator { // Try to use a ScalarPair for all tagged enums. 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) { + for (field_layouts, layout_variant) in iter::zip(variants, &layout_variants) { let FieldsShape::Arbitrary { ref offsets, .. } = layout_variant.fields else { panic!(); }; diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 4f4a4bf314f..85693259cd0 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -211,6 +211,102 @@ pub enum TargetDataLayoutErrors<'a> { } impl TargetDataLayout { + /// Parse data layout from an [llvm data layout string](https://llvm.org/docs/LangRef.html#data-layout) + /// + /// This function doesn't fill `c_enum_min_size` and it will always be `I32` since it can not be + /// determined from llvm string. + pub fn parse_from_llvm_datalayout_string<'a>( + input: &'a str, + ) -> Result<TargetDataLayout, TargetDataLayoutErrors<'a>> { + // Parse an address space index from a string. + let parse_address_space = |s: &'a str, cause: &'a str| { + s.parse::<u32>().map(AddressSpace).map_err(|err| { + TargetDataLayoutErrors::InvalidAddressSpace { addr_space: s, cause, err } + }) + }; + + // Parse a bit count from a string. + let parse_bits = |s: &'a str, kind: &'a str, cause: &'a str| { + s.parse::<u64>().map_err(|err| TargetDataLayoutErrors::InvalidBits { + kind, + bit: s, + cause, + err, + }) + }; + + // Parse a size string. + let size = |s: &'a str, cause: &'a str| parse_bits(s, "size", cause).map(Size::from_bits); + + // Parse an alignment string. + let align = |s: &[&'a str], cause: &'a str| { + if s.is_empty() { + return Err(TargetDataLayoutErrors::MissingAlignment { cause }); + } + let align_from_bits = |bits| { + Align::from_bits(bits) + .map_err(|err| TargetDataLayoutErrors::InvalidAlignment { cause, err }) + }; + let abi = parse_bits(s[0], "alignment", cause)?; + let pref = s.get(1).map_or(Ok(abi), |pref| parse_bits(pref, "alignment", cause))?; + Ok(AbiAndPrefAlign { abi: align_from_bits(abi)?, pref: align_from_bits(pref)? }) + }; + + let mut dl = TargetDataLayout::default(); + let mut i128_align_src = 64; + for spec in input.split('-') { + let spec_parts = spec.split(':').collect::<Vec<_>>(); + + match &*spec_parts { + ["e"] => dl.endian = Endian::Little, + ["E"] => dl.endian = Endian::Big, + [p] if p.starts_with('P') => { + dl.instruction_address_space = parse_address_space(&p[1..], "P")? + } + ["a", ref a @ ..] => dl.aggregate_align = align(a, "a")?, + ["f32", ref a @ ..] => dl.f32_align = align(a, "f32")?, + ["f64", ref a @ ..] => dl.f64_align = align(a, "f64")?, + [p @ "p", s, ref a @ ..] | [p @ "p0", s, ref a @ ..] => { + dl.pointer_size = size(s, p)?; + dl.pointer_align = align(a, p)?; + } + [s, ref a @ ..] if s.starts_with('i') => { + let Ok(bits) = s[1..].parse::<u64>() else { + size(&s[1..], "i")?; // For the user error. + continue; + }; + let a = align(a, s)?; + match bits { + 1 => dl.i1_align = a, + 8 => dl.i8_align = a, + 16 => dl.i16_align = a, + 32 => dl.i32_align = a, + 64 => dl.i64_align = a, + _ => {} + } + if bits >= i128_align_src && bits <= 128 { + // Default alignment for i128 is decided by taking the alignment of + // largest-sized i{64..=128}. + i128_align_src = bits; + dl.i128_align = a; + } + } + [s, ref a @ ..] if s.starts_with('v') => { + let v_size = size(&s[1..], "v")?; + let a = align(a, s)?; + if let Some(v) = dl.vector_align.iter_mut().find(|v| v.0 == v_size) { + v.1 = a; + continue; + } + // No existing entry, add a new one. + dl.vector_align.push((v_size, a)); + } + _ => {} // Ignore everything else. + } + } + Ok(dl) + } + /// Returns exclusive upper bound on object size. /// /// The theoretical maximum object size is defined as the maximum positive `isize` value. diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index d0bb05c3654..4d80f904ac4 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -479,20 +479,10 @@ pub struct Crate { pub is_placeholder: bool, } -/// Possible values inside of compile-time attribute lists. -/// -/// E.g., the '..' in `#[name(..)]`. -#[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] -pub enum NestedMetaItem { - /// A full MetaItem, for recursive meta items. - MetaItem(MetaItem), - /// A literal. - /// - /// E.g., `"foo"`, `64`, `true`. - Lit(MetaItemLit), -} - -/// A spanned compile-time attribute item. +/// A semantic representation of a meta item. A meta item is a slightly +/// restricted form of an attribute -- it can only contain expressions in +/// certain leaf positions, rather than arbitrary token streams -- that is used +/// for most built-in attributes. /// /// E.g., `#[test]`, `#[derive(..)]`, `#[rustfmt::skip]` or `#[feature = "foo"]`. #[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] @@ -502,25 +492,39 @@ pub struct MetaItem { pub span: Span, } -/// A compile-time attribute item. -/// -/// E.g., `#[test]`, `#[derive(..)]` or `#[feature = "foo"]`. +/// The meta item kind, containing the data after the initial path. #[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] pub enum MetaItemKind { /// Word meta item. /// - /// E.g., `test` as in `#[test]`. + /// E.g., `#[test]`, which lacks any arguments after `test`. Word, + /// List meta item. /// - /// E.g., `derive(..)` as in `#[derive(..)]`. + /// E.g., `#[derive(..)]`, where the field represents the `..`. List(Vec<NestedMetaItem>), + /// Name value meta item. /// - /// E.g., `feature = "foo"` as in `#[feature = "foo"]`. + /// E.g., `#[feature = "foo"]`, where the field represents the `"foo"`. NameValue(MetaItemLit), } +/// Values inside meta item lists. +/// +/// E.g., each of `Clone`, `Copy` in `#[derive(Clone, Copy)]`. +#[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] +pub enum NestedMetaItem { + /// A full MetaItem, for recursive meta items. + MetaItem(MetaItem), + + /// A literal. + /// + /// E.g., `"foo"`, `64`, `true`. + Lit(MetaItemLit), +} + /// A block (`{ .. }`). /// /// E.g., `{ .. }` as in `fn foo() { .. }`. @@ -1175,7 +1179,7 @@ impl Expr { pub fn peel_parens(&self) -> &Expr { let mut expr = self; while let ExprKind::Paren(inner) = &expr.kind { - expr = &inner; + expr = inner; } expr } @@ -1308,8 +1312,10 @@ pub struct Closure { pub movability: Movability, pub fn_decl: P<FnDecl>, pub body: P<Expr>, - /// The span of the argument block `|...|`. + /// The span of the declaration block: 'move |...| -> ...' pub fn_decl_span: Span, + /// The span of the argument block `|...|` + pub fn_arg_span: Span, } /// Limit types of a range (inclusive or exclusive) @@ -2023,7 +2029,7 @@ impl Ty { pub fn peel_refs(&self) -> &Self { let mut final_ty = self; while let TyKind::Rptr(_, MutTy { ty, .. }) = &final_ty.kind { - final_ty = &ty; + final_ty = ty; } final_ty } @@ -2513,10 +2519,7 @@ pub struct Variant { #[derive(Clone, Encodable, Decodable, Debug)] pub enum UseTreeKind { /// `use prefix` or `use prefix as rename` - /// - /// The extra `NodeId`s are for HIR lowering, when additional statements are created for each - /// namespace. - Simple(Option<Ident>, NodeId, NodeId), + Simple(Option<Ident>), /// `use prefix::{...}` Nested(Vec<(UseTree, NodeId)>), /// `use prefix::*` @@ -2535,8 +2538,8 @@ pub struct UseTree { impl UseTree { pub fn ident(&self) -> Ident { match self.kind { - UseTreeKind::Simple(Some(rename), ..) => rename, - UseTreeKind::Simple(None, ..) => { + UseTreeKind::Simple(Some(rename)) => rename, + UseTreeKind::Simple(None) => { self.prefix.segments.last().expect("empty prefix in a simple import").ident } _ => panic!("`UseTree::ident` can only be used on a simple import"), @@ -2570,17 +2573,10 @@ impl<D: Decoder> Decodable<D> for AttrId { } } -#[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] -pub struct AttrItem { - pub path: Path, - pub args: AttrArgs, - pub tokens: Option<LazyAttrTokenStream>, -} - /// A list of attributes. pub type AttrVec = ThinVec<Attribute>; -/// Metadata associated with an item. +/// A syntax-level representation of an attribute. #[derive(Clone, Encodable, Decodable, Debug)] pub struct Attribute { pub kind: AttrKind, @@ -2592,12 +2588,6 @@ pub struct Attribute { } #[derive(Clone, Encodable, Decodable, Debug)] -pub struct NormalAttr { - pub item: AttrItem, - pub tokens: Option<LazyAttrTokenStream>, -} - -#[derive(Clone, Encodable, Decodable, Debug)] pub enum AttrKind { /// A normal attribute. Normal(P<NormalAttr>), @@ -2608,6 +2598,19 @@ pub enum AttrKind { DocComment(CommentKind, Symbol), } +#[derive(Clone, Encodable, Decodable, Debug)] +pub struct NormalAttr { + pub item: AttrItem, + pub tokens: Option<LazyAttrTokenStream>, +} + +#[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)] +pub struct AttrItem { + pub path: Path, + pub args: AttrArgs, + pub tokens: Option<LazyAttrTokenStream>, +} + /// `TraitRef`s appear in impls. /// /// Resolution maps each `TraitRef`'s `ref_id` to its defining trait; that's all diff --git a/compiler/rustc_ast/src/attr/mod.rs b/compiler/rustc_ast/src/attr/mod.rs index 7a86b471ba2..057cc26b579 100644 --- a/compiler/rustc_ast/src/attr/mod.rs +++ b/compiler/rustc_ast/src/attr/mod.rs @@ -1,10 +1,10 @@ //! Functions dealing with attributes and meta items. use crate::ast; -use crate::ast::{AttrArgs, AttrArgsEq, AttrId, AttrItem, AttrKind, AttrStyle, Attribute}; -use crate::ast::{DelimArgs, LitKind, MetaItemLit}; -use crate::ast::{MacDelimiter, MetaItem, MetaItemKind, NestedMetaItem}; -use crate::ast::{Path, PathSegment}; +use crate::ast::{AttrArgs, AttrArgsEq, AttrId, AttrItem, AttrKind, AttrStyle, AttrVec, Attribute}; +use crate::ast::{DelimArgs, Expr, ExprKind, LitKind, MetaItemLit}; +use crate::ast::{MacDelimiter, MetaItem, MetaItemKind, NestedMetaItem, NormalAttr}; +use crate::ast::{Path, PathSegment, StrStyle, DUMMY_NODE_ID}; use crate::ptr::P; use crate::token::{self, CommentKind, Delimiter, Token}; use crate::tokenstream::{DelimSpan, Spacing, TokenTree}; @@ -12,7 +12,6 @@ use crate::tokenstream::{LazyAttrTokenStream, TokenStream}; use crate::util::comments; use rustc_data_structures::sync::WorkerLocal; use rustc_index::bit_set::GrowableBitSet; -use rustc_span::source_map::BytePos; use rustc_span::symbol::{sym, Ident, Symbol}; use rustc_span::Span; use std::cell::Cell; @@ -223,11 +222,7 @@ impl AttrItem { } pub fn meta(&self, span: Span) -> Option<MetaItem> { - Some(MetaItem { - path: self.path.clone(), - kind: MetaItemKind::from_attr_args(&self.args)?, - span, - }) + Some(MetaItem { path: self.path.clone(), kind: self.meta_kind()?, span }) } pub fn meta_kind(&self) -> Option<MetaItemKind> { @@ -329,26 +324,13 @@ impl Attribute { /* Constructors */ pub fn mk_name_value_item_str(ident: Ident, str: Symbol, str_span: Span) -> MetaItem { - let lit_kind = LitKind::Str(str, ast::StrStyle::Cooked); - mk_name_value_item(ident, lit_kind, str_span) + mk_name_value_item(ident, LitKind::Str(str, ast::StrStyle::Cooked), str_span) } -pub fn mk_name_value_item(ident: Ident, lit_kind: LitKind, lit_span: Span) -> MetaItem { - let lit = MetaItemLit::from_lit_kind(lit_kind, lit_span); +pub fn mk_name_value_item(ident: Ident, kind: LitKind, lit_span: Span) -> MetaItem { + let lit = MetaItemLit { token_lit: kind.to_token_lit(), kind, span: lit_span }; let span = ident.span.to(lit_span); - MetaItem { path: Path::from_ident(ident), span, kind: MetaItemKind::NameValue(lit) } -} - -pub fn mk_list_item(ident: Ident, items: Vec<NestedMetaItem>) -> MetaItem { - MetaItem { path: Path::from_ident(ident), span: ident.span, kind: MetaItemKind::List(items) } -} - -pub fn mk_word_item(ident: Ident) -> MetaItem { - MetaItem { path: Path::from_ident(ident), span: ident.span, kind: MetaItemKind::Word } -} - -pub fn mk_nested_word_item(ident: Ident) -> NestedMetaItem { - NestedMetaItem::MetaItem(mk_word_item(ident)) + MetaItem { path: Path::from_ident(ident), kind: MetaItemKind::NameValue(lit), span } } pub struct AttrIdGenerator(WorkerLocal<Cell<u32>>); @@ -406,21 +388,58 @@ pub fn mk_attr_from_item( span: Span, ) -> Attribute { Attribute { - kind: AttrKind::Normal(P(ast::NormalAttr { item, tokens })), + kind: AttrKind::Normal(P(NormalAttr { item, tokens })), id: g.mk_attr_id(), style, span, } } -/// Returns an inner attribute with the given value and span. -pub fn mk_attr_inner(g: &AttrIdGenerator, item: MetaItem) -> Attribute { - mk_attr(g, AttrStyle::Inner, item.path, item.kind.attr_args(item.span), item.span) +pub fn mk_attr_word(g: &AttrIdGenerator, style: AttrStyle, name: Symbol, span: Span) -> Attribute { + let path = Path::from_ident(Ident::new(name, span)); + let args = AttrArgs::Empty; + mk_attr(g, style, path, args, span) +} + +pub fn mk_attr_name_value_str( + g: &AttrIdGenerator, + style: AttrStyle, + name: Symbol, + val: Symbol, + span: Span, +) -> Attribute { + let lit = LitKind::Str(val, StrStyle::Cooked).to_token_lit(); + let expr = P(Expr { + id: DUMMY_NODE_ID, + kind: ExprKind::Lit(lit), + span, + attrs: AttrVec::new(), + tokens: None, + }); + let path = Path::from_ident(Ident::new(name, span)); + let args = AttrArgs::Eq(span, AttrArgsEq::Ast(expr)); + mk_attr(g, style, path, args, span) } -/// Returns an outer attribute with the given value and span. -pub fn mk_attr_outer(g: &AttrIdGenerator, item: MetaItem) -> Attribute { - mk_attr(g, AttrStyle::Outer, item.path, item.kind.attr_args(item.span), item.span) +pub fn mk_attr_nested_word( + g: &AttrIdGenerator, + style: AttrStyle, + outer: Symbol, + inner: Symbol, + span: Span, +) -> Attribute { + let inner_tokens = TokenStream::new(vec![TokenTree::Token( + Token::from_ast_ident(Ident::new(inner, span)), + Spacing::Alone, + )]); + let outer_ident = Ident::new(outer, span); + let path = Path::from_ident(outer_ident); + let attr_args = AttrArgs::Delimited(DelimArgs { + dspan: DelimSpan::from_single(span), + delim: MacDelimiter::Parenthesis, + tokens: inner_tokens, + }); + mk_attr(g, style, path, attr_args, span) } pub fn mk_doc_comment( @@ -438,23 +457,6 @@ pub fn list_contains_name(items: &[NestedMetaItem], name: Symbol) -> bool { } impl MetaItem { - fn token_trees(&self) -> Vec<TokenTree> { - let mut idents = vec![]; - let mut last_pos = BytePos(0_u32); - for (i, segment) in self.path.segments.iter().enumerate() { - let is_first = i == 0; - if !is_first { - let mod_sep_span = - Span::new(last_pos, segment.ident.span.lo(), segment.ident.span.ctxt(), None); - idents.push(TokenTree::token_alone(token::ModSep, mod_sep_span)); - } - idents.push(TokenTree::Token(Token::from_ast_ident(segment.ident), Spacing::Alone)); - last_pos = segment.ident.span.hi(); - } - idents.extend(self.kind.token_trees(self.span)); - idents - } - fn from_tokens<I>(tokens: &mut iter::Peekable<I>) -> Option<MetaItem> where I: Iterator<Item = TokenTree>, @@ -526,62 +528,6 @@ impl MetaItemKind { } } - pub fn attr_args(&self, span: Span) -> AttrArgs { - match self { - MetaItemKind::Word => AttrArgs::Empty, - MetaItemKind::NameValue(lit) => { - let expr = P(ast::Expr { - id: ast::DUMMY_NODE_ID, - kind: ast::ExprKind::Lit(lit.token_lit.clone()), - span: lit.span, - attrs: ast::AttrVec::new(), - tokens: None, - }); - AttrArgs::Eq(span, AttrArgsEq::Ast(expr)) - } - MetaItemKind::List(list) => { - let mut tts = Vec::new(); - for (i, item) in list.iter().enumerate() { - if i > 0 { - tts.push(TokenTree::token_alone(token::Comma, span)); - } - tts.extend(item.token_trees()) - } - AttrArgs::Delimited(DelimArgs { - dspan: DelimSpan::from_single(span), - delim: MacDelimiter::Parenthesis, - tokens: TokenStream::new(tts), - }) - } - } - } - - fn token_trees(&self, span: Span) -> Vec<TokenTree> { - match self { - MetaItemKind::Word => vec![], - MetaItemKind::NameValue(lit) => { - vec![ - TokenTree::token_alone(token::Eq, span), - TokenTree::Token(lit.to_token(), Spacing::Alone), - ] - } - MetaItemKind::List(list) => { - let mut tokens = Vec::new(); - for (i, item) in list.iter().enumerate() { - if i > 0 { - tokens.push(TokenTree::token_alone(token::Comma, span)); - } - tokens.extend(item.token_trees()) - } - vec![TokenTree::Delimited( - DelimSpan::from_single(span), - Delimiter::Parenthesis, - TokenStream::new(tokens), - )] - } - } - } - fn list_from_tokens(tokens: TokenStream) -> Option<MetaItemKind> { let mut tokens = tokens.into_trees().peekable(); let mut result = Vec::new(); @@ -620,7 +566,7 @@ impl MetaItemKind { }) => MetaItemKind::list_from_tokens(tokens.clone()), AttrArgs::Delimited(..) => None, AttrArgs::Eq(_, AttrArgsEq::Ast(expr)) => match expr.kind { - ast::ExprKind::Lit(token_lit) => { + ExprKind::Lit(token_lit) => { // Turn failures to `None`, we'll get parse errors elsewhere. MetaItemLit::from_token_lit(token_lit, expr.span) .ok() @@ -659,15 +605,6 @@ impl NestedMetaItem { } } - fn token_trees(&self) -> Vec<TokenTree> { - match self { - NestedMetaItem::MetaItem(item) => item.token_trees(), - NestedMetaItem::Lit(lit) => { - vec![TokenTree::Token(lit.to_token(), Spacing::Alone)] - } - } - } - fn from_tokens<I>(tokens: &mut iter::Peekable<I>) -> Option<NestedMetaItem> where I: Iterator<Item = TokenTree>, diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs index cb3c54fa03c..a45ee6067bb 100644 --- a/compiler/rustc_ast/src/mut_visit.rs +++ b/compiler/rustc_ast/src/mut_visit.rs @@ -410,11 +410,7 @@ pub fn noop_visit_use_tree<T: MutVisitor>(use_tree: &mut UseTree, vis: &mut T) { let UseTree { prefix, kind, span } = use_tree; vis.visit_path(prefix); match kind { - UseTreeKind::Simple(rename, id1, id2) => { - visit_opt(rename, |rename| vis.visit_ident(rename)); - vis.visit_id(id1); - vis.visit_id(id2); - } + UseTreeKind::Simple(rename) => visit_opt(rename, |rename| vis.visit_ident(rename)), UseTreeKind::Nested(items) => { for (tree, id) in items { vis.visit_use_tree(tree); @@ -740,8 +736,7 @@ pub fn visit_token<T: MutVisitor>(t: &mut Token, vis: &mut T) { return; // Avoid visiting the span for the second time. } token::Interpolated(nt) => { - let mut nt = Lrc::make_mut(nt); - visit_nonterminal(&mut nt, vis); + visit_nonterminal(Lrc::make_mut(nt), vis); } _ => {} } @@ -1372,6 +1367,7 @@ pub fn noop_visit_expr<T: MutVisitor>( fn_decl, body, fn_decl_span, + fn_arg_span: _, }) => { vis.visit_closure_binder(binder); vis.visit_asyncness(asyncness); diff --git a/compiler/rustc_ast/src/tokenstream.rs b/compiler/rustc_ast/src/tokenstream.rs index 58c6d397ea2..482c302950f 100644 --- a/compiler/rustc_ast/src/tokenstream.rs +++ b/compiler/rustc_ast/src/tokenstream.rs @@ -64,7 +64,7 @@ impl TokenTree { match (self, other) { (TokenTree::Token(token, _), TokenTree::Token(token2, _)) => token.kind == token2.kind, (TokenTree::Delimited(_, delim, tts), TokenTree::Delimited(_, delim2, tts2)) => { - delim == delim2 && tts.eq_unspanned(&tts2) + delim == delim2 && tts.eq_unspanned(tts2) } _ => false, } @@ -402,7 +402,7 @@ impl TokenStream { let mut t1 = self.trees(); let mut t2 = other.trees(); for (t1, t2) in iter::zip(&mut t1, &mut t2) { - if !t1.eq_unspanned(&t2) { + if !t1.eq_unspanned(t2) { return false; } } @@ -475,7 +475,7 @@ impl TokenStream { token::Interpolated(nt) => TokenTree::Delimited( DelimSpan::from_single(token.span), Delimiter::Invisible, - TokenStream::from_nonterminal_ast(&nt).flattened(), + TokenStream::from_nonterminal_ast(nt).flattened(), ), _ => TokenTree::Token(token.clone(), spacing), } @@ -511,7 +511,7 @@ impl TokenStream { fn try_glue_to_last(vec: &mut Vec<TokenTree>, tt: &TokenTree) -> bool { if let Some(TokenTree::Token(last_tok, Spacing::Joint)) = vec.last() && let TokenTree::Token(tok, spacing) = tt - && let Some(glued_tok) = last_tok.glue(&tok) + && let Some(glued_tok) = last_tok.glue(tok) { // ...then overwrite the last token tree in `vec` with the // glued token, and skip the first token tree from `stream`. diff --git a/compiler/rustc_ast/src/util/classify.rs b/compiler/rustc_ast/src/util/classify.rs index fbb4cf43a95..cdc244c1218 100644 --- a/compiler/rustc_ast/src/util/classify.rs +++ b/compiler/rustc_ast/src/util/classify.rs @@ -21,6 +21,7 @@ pub fn expr_requires_semi_to_be_stmt(e: &ast::Expr) -> bool { | ast::ExprKind::Loop(..) | ast::ExprKind::ForLoop(..) | ast::ExprKind::TryBlock(..) + | ast::ExprKind::ConstBlock(..) ) } diff --git a/compiler/rustc_ast/src/util/comments.rs b/compiler/rustc_ast/src/util/comments.rs index c96474ccb42..35454c3a670 100644 --- a/compiler/rustc_ast/src/util/comments.rs +++ b/compiler/rustc_ast/src/util/comments.rs @@ -110,7 +110,7 @@ pub fn beautify_doc_string(data: Symbol, kind: CommentKind) -> Symbol { } else { &mut lines }; - if let Some(horizontal) = get_horizontal_trim(&lines, kind) { + if let Some(horizontal) = get_horizontal_trim(lines, kind) { changes = true; // remove a "[ \t]*\*" block from each line, if possible for line in lines.iter_mut() { @@ -147,7 +147,7 @@ fn all_whitespace(s: &str, col: CharPos) -> Option<usize> { fn trim_whitespace_prefix(s: &str, col: CharPos) -> &str { let len = s.len(); - match all_whitespace(&s, col) { + match all_whitespace(s, col) { Some(col) => { if col < len { &s[col..] diff --git a/compiler/rustc_ast/src/util/literal.rs b/compiler/rustc_ast/src/util/literal.rs index 42cba07fcef..f6f186b5107 100644 --- a/compiler/rustc_ast/src/util/literal.rs +++ b/compiler/rustc_ast/src/util/literal.rs @@ -52,14 +52,14 @@ impl LitKind { // new symbol because the string in the LitKind is different to the // string in the token. let s = symbol.as_str(); - let symbol = if s.contains(&['\\', '\r']) { + let symbol = if s.contains(['\\', '\r']) { let mut buf = String::with_capacity(s.len()); let mut error = Ok(()); // Force-inlining here is aggressive but the closure is // called on every char in the string, so it can be // hot in programs with many long strings. unescape_literal( - &s, + s, Mode::Str, &mut #[inline(always)] |_, unescaped_char| match unescaped_char { @@ -85,7 +85,7 @@ impl LitKind { if s.contains('\r') { let mut buf = String::with_capacity(s.len()); let mut error = Ok(()); - unescape_literal(&s, Mode::RawStr, &mut |_, unescaped_char| { + unescape_literal(s, Mode::RawStr, &mut |_, unescaped_char| { match unescaped_char { Ok(c) => buf.push(c), Err(err) => { @@ -106,7 +106,7 @@ impl LitKind { let s = symbol.as_str(); let mut buf = Vec::with_capacity(s.len()); let mut error = Ok(()); - unescape_literal(&s, Mode::ByteStr, &mut |_, c| match c { + unescape_literal(s, Mode::ByteStr, &mut |_, c| match c { Ok(c) => buf.push(byte_from_char(c)), Err(err) => { if err.is_fatal() { @@ -122,7 +122,7 @@ impl LitKind { let bytes = if s.contains('\r') { let mut buf = Vec::with_capacity(s.len()); let mut error = Ok(()); - unescape_literal(&s, Mode::RawByteStr, &mut |_, c| match c { + unescape_literal(s, Mode::RawByteStr, &mut |_, c| match c { Ok(c) => buf.push(byte_from_char(c)), Err(err) => { if err.is_fatal() { @@ -206,22 +206,6 @@ impl MetaItemLit { token::Lit::from_token(token) .and_then(|token_lit| MetaItemLit::from_token_lit(token_lit, token.span).ok()) } - - /// Attempts to create a meta item literal from a `LitKind`. - /// This function is used when the original token doesn't exist (e.g. the literal is created - /// by an AST-based macro) or unavailable (e.g. from HIR pretty-printing). - pub fn from_lit_kind(kind: LitKind, span: Span) -> MetaItemLit { - MetaItemLit { token_lit: kind.to_token_lit(), kind, span } - } - - /// Losslessly convert a meta item literal into a token. - pub fn to_token(&self) -> Token { - let kind = match self.token_lit.kind { - token::Bool => token::Ident(self.token_lit.symbol, false), - _ => token::Literal(self.token_lit), - }; - Token::new(kind, self.span) - } } fn strip_underscores(symbol: Symbol) -> Symbol { diff --git a/compiler/rustc_ast/src/util/parser.rs b/compiler/rustc_ast/src/util/parser.rs index f65f1f069cb..819f1884a06 100644 --- a/compiler/rustc_ast/src/util/parser.rs +++ b/compiler/rustc_ast/src/util/parser.rs @@ -384,7 +384,7 @@ pub fn contains_exterior_struct_lit(value: &ast::Expr) -> bool { | ast::ExprKind::AssignOp(_, lhs, rhs) | ast::ExprKind::Binary(_, lhs, rhs) => { // X { y: 1 } + X { y: 2 } - contains_exterior_struct_lit(&lhs) || contains_exterior_struct_lit(&rhs) + contains_exterior_struct_lit(lhs) || contains_exterior_struct_lit(rhs) } ast::ExprKind::Await(x) | ast::ExprKind::Unary(_, x) @@ -393,12 +393,12 @@ pub fn contains_exterior_struct_lit(value: &ast::Expr) -> bool { | ast::ExprKind::Field(x, _) | ast::ExprKind::Index(x, _) => { // &X { y: 1 }, X { y: 1 }.y - contains_exterior_struct_lit(&x) + contains_exterior_struct_lit(x) } ast::ExprKind::MethodCall(box ast::MethodCall { receiver, .. }) => { // X { y: 1 }.bar(...) - contains_exterior_struct_lit(&receiver) + contains_exterior_struct_lit(receiver) } _ => false, diff --git a/compiler/rustc_ast/src/util/unicode.rs b/compiler/rustc_ast/src/util/unicode.rs index f009f7b300c..0eae791b25e 100644 --- a/compiler/rustc_ast/src/util/unicode.rs +++ b/compiler/rustc_ast/src/util/unicode.rs @@ -17,7 +17,7 @@ pub fn contains_text_flow_control_chars(s: &str) -> bool { // U+2069 - E2 81 A9 let mut bytes = s.as_bytes(); loop { - match core::slice::memchr::memchr(0xE2, &bytes) { + match core::slice::memchr::memchr(0xE2, bytes) { Some(idx) => { // bytes are valid UTF-8 -> E2 must be followed by two bytes let ch = &bytes[idx..idx + 3]; diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs index c528118be08..991eb489f6b 100644 --- a/compiler/rustc_ast/src/visit.rs +++ b/compiler/rustc_ast/src/visit.rs @@ -439,7 +439,7 @@ pub fn walk_path<'a, V: Visitor<'a>>(visitor: &mut V, path: &'a Path) { pub fn walk_use_tree<'a, V: Visitor<'a>>(visitor: &mut V, use_tree: &'a UseTree, id: NodeId) { visitor.visit_path(&use_tree.prefix, id); match &use_tree.kind { - UseTreeKind::Simple(rename, ..) => { + UseTreeKind::Simple(rename) => { // The extra IDs are handled during HIR lowering. if let &Some(rename) = rename { visitor.visit_ident(rename); @@ -840,6 +840,7 @@ pub fn walk_expr<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expr) { fn_decl, body, fn_decl_span: _, + fn_arg_span: _, }) => { visitor.visit_fn(FnKind::Closure(binder, fn_decl, body), expression.span, expression.id) } diff --git a/compiler/rustc_ast_lowering/src/asm.rs b/compiler/rustc_ast_lowering/src/asm.rs index 2a0338adc9c..dfef6ec70fc 100644 --- a/compiler/rustc_ast_lowering/src/asm.rs +++ b/compiler/rustc_ast_lowering/src/asm.rs @@ -222,7 +222,12 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { // Wrap the expression in an AnonConst. let parent_def_id = self.current_hir_id_owner; let node_id = self.next_node_id(); - self.create_def(parent_def_id.def_id, node_id, DefPathData::AnonConst); + self.create_def( + parent_def_id.def_id, + node_id, + DefPathData::AnonConst, + *op_sp, + ); let anon_const = AnonConst { id: node_id, value: P(expr) }; hir::InlineAsmOperand::SymFn { anon_const: self.lower_anon_const(&anon_const), diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs index c14c591d387..695ccec0b1c 100644 --- a/compiler/rustc_ast_lowering/src/expr.rs +++ b/compiler/rustc_ast_lowering/src/expr.rs @@ -147,6 +147,7 @@ impl<'hir> LoweringContext<'_, 'hir> { ), ExprKind::Async(capture_clause, closure_node_id, block) => self.make_async_expr( *capture_clause, + None, *closure_node_id, None, e.span, @@ -176,6 +177,7 @@ impl<'hir> LoweringContext<'_, 'hir> { fn_decl, body, fn_decl_span, + fn_arg_span, }) => { if let Async::Yes { closure_id, .. } = asyncness { self.lower_expr_async_closure( @@ -186,6 +188,7 @@ impl<'hir> LoweringContext<'_, 'hir> { fn_decl, body, *fn_decl_span, + *fn_arg_span, ) } else { self.lower_expr_closure( @@ -196,6 +199,7 @@ impl<'hir> LoweringContext<'_, 'hir> { fn_decl, body, *fn_decl_span, + *fn_arg_span, ) } } @@ -365,7 +369,7 @@ impl<'hir> LoweringContext<'_, 'hir> { let node_id = self.next_node_id(); // Add a definition for the in-band const def. - self.create_def(parent_def_id.def_id, node_id, DefPathData::AnonConst); + self.create_def(parent_def_id.def_id, node_id, DefPathData::AnonConst, f.span); let anon_const = AnonConst { id: node_id, value: arg }; generic_args.push(AngleBracketedArg::Arg(GenericArg::Const(anon_const))); @@ -581,6 +585,7 @@ impl<'hir> LoweringContext<'_, 'hir> { pub(super) fn make_async_expr( &mut self, capture_clause: CaptureBy, + outer_hir_id: Option<hir::HirId>, closure_node_id: NodeId, ret_ty: Option<hir::FnRetTy<'hir>>, span: Span, @@ -642,23 +647,26 @@ impl<'hir> LoweringContext<'_, 'hir> { fn_decl, body, fn_decl_span: self.lower_span(span), + fn_arg_span: None, movability: Some(hir::Movability::Static), }); hir::ExprKind::Closure(c) }; - let parent_has_track_caller = self - .attrs - .values() - .find(|attrs| attrs.into_iter().find(|attr| attr.has_name(sym::track_caller)).is_some()) - .is_some(); - let unstable_span = - self.mark_span_with_reason(DesugaringKind::Async, span, self.allow_gen_future.clone()); - let hir_id = if parent_has_track_caller { - let generator_hir_id = self.lower_node_id(closure_node_id); + let track_caller = outer_hir_id + .and_then(|id| self.attrs.get(&id.local_id)) + .map_or(false, |attrs| attrs.into_iter().any(|attr| attr.has_name(sym::track_caller))); + + let hir_id = self.lower_node_id(closure_node_id); + if track_caller { + let unstable_span = self.mark_span_with_reason( + DesugaringKind::Async, + span, + self.allow_gen_future.clone(), + ); self.lower_attrs( - generator_hir_id, + hir_id, &[Attribute { kind: AttrKind::Normal(ptr::P(NormalAttr { item: AttrItem { @@ -673,10 +681,7 @@ impl<'hir> LoweringContext<'_, 'hir> { span: unstable_span, }], ); - generator_hir_id - } else { - self.lower_node_id(closure_node_id) - }; + } let generator = hir::Expr { hir_id, kind: generator_kind, span: self.lower_span(span) }; @@ -898,6 +903,7 @@ impl<'hir> LoweringContext<'_, 'hir> { decl: &FnDecl, body: &Expr, fn_decl_span: Span, + fn_arg_span: Span, ) -> hir::ExprKind<'hir> { let (binder_clause, generic_params) = self.lower_closure_binder(binder); @@ -928,6 +934,7 @@ impl<'hir> LoweringContext<'_, 'hir> { fn_decl, body: body_id, fn_decl_span: self.lower_span(fn_decl_span), + fn_arg_span: Some(self.lower_span(fn_arg_span)), movability: generator_option, }); @@ -984,6 +991,7 @@ impl<'hir> LoweringContext<'_, 'hir> { decl: &FnDecl, body: &Expr, fn_decl_span: Span, + fn_arg_span: Span, ) -> hir::ExprKind<'hir> { if let &ClosureBinder::For { span, .. } = binder { self.tcx.sess.emit_err(NotSupportedForLifetimeBinderAsyncClosure { span }); @@ -1012,6 +1020,9 @@ impl<'hir> LoweringContext<'_, 'hir> { let async_body = this.make_async_expr( capture_clause, + // FIXME(nbdd0121): This should also use a proper HIR id so `#[track_caller]` + // can be applied on async closures as well. + None, inner_closure_id, async_ret_ty, body.span, @@ -1038,6 +1049,7 @@ impl<'hir> LoweringContext<'_, 'hir> { fn_decl, body, fn_decl_span: self.lower_span(fn_decl_span), + fn_arg_span: Some(self.lower_span(fn_arg_span)), movability: None, }); hir::ExprKind::Closure(c) @@ -1606,16 +1618,13 @@ impl<'hir> LoweringContext<'_, 'hir> { }; // `#[allow(unreachable_code)]` - let attr = { - // `allow(unreachable_code)` - let allow = { - let allow_ident = Ident::new(sym::allow, self.lower_span(span)); - let uc_ident = Ident::new(sym::unreachable_code, self.lower_span(span)); - let uc_nested = attr::mk_nested_word_item(uc_ident); - attr::mk_list_item(allow_ident, vec![uc_nested]) - }; - attr::mk_attr_outer(&self.tcx.sess.parse_sess.attr_id_generator, allow) - }; + let attr = attr::mk_attr_nested_word( + &self.tcx.sess.parse_sess.attr_id_generator, + AttrStyle::Outer, + sym::allow, + sym::unreachable_code, + self.lower_span(span), + ); let attrs: AttrVec = thin_vec![attr]; // `ControlFlow::Continue(val) => #[allow(unreachable_code)] val,` diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index 2b47e908912..9eda48e9329 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -19,7 +19,6 @@ use rustc_span::symbol::{kw, sym, Ident}; use rustc_span::{Span, Symbol}; use rustc_target::spec::abi; use smallvec::{smallvec, SmallVec}; -use std::iter; use thin_vec::ThinVec; pub(super) struct ItemLowerer<'a, 'hir> { @@ -179,36 +178,22 @@ impl<'hir> LoweringContext<'_, 'hir> { let mut node_ids = smallvec![hir::ItemId { owner_id: hir::OwnerId { def_id: self.local_def_id(i.id) } }]; if let ItemKind::Use(use_tree) = &i.kind { - self.lower_item_id_use_tree(use_tree, i.id, &mut node_ids); + self.lower_item_id_use_tree(use_tree, &mut node_ids); } node_ids } - fn lower_item_id_use_tree( - &mut self, - tree: &UseTree, - base_id: NodeId, - vec: &mut SmallVec<[hir::ItemId; 1]>, - ) { + fn lower_item_id_use_tree(&mut self, tree: &UseTree, vec: &mut SmallVec<[hir::ItemId; 1]>) { match &tree.kind { UseTreeKind::Nested(nested_vec) => { for &(ref nested, id) in nested_vec { vec.push(hir::ItemId { owner_id: hir::OwnerId { def_id: self.local_def_id(id) }, }); - self.lower_item_id_use_tree(nested, id, vec); - } - } - UseTreeKind::Glob => {} - UseTreeKind::Simple(_, id1, id2) => { - for (_, id) in - iter::zip(self.expect_full_res_from_use(base_id).skip(1), [*id1, *id2]) - { - vec.push(hir::ItemId { - owner_id: hir::OwnerId { def_id: self.local_def_id(id) }, - }); + self.lower_item_id_use_tree(nested, vec); } } + UseTreeKind::Simple(..) | UseTreeKind::Glob => {} } } @@ -268,8 +253,13 @@ impl<'hir> LoweringContext<'_, 'hir> { // only cares about the input argument patterns in the function // declaration (decl), not the return types. let asyncness = header.asyncness; - let body_id = - this.lower_maybe_async_body(span, &decl, asyncness, body.as_deref()); + let body_id = this.lower_maybe_async_body( + span, + hir_id, + &decl, + asyncness, + body.as_deref(), + ); let mut itctx = ImplTraitContext::Universal; let (generics, decl) = this.lower_generics(generics, id, &mut itctx, |this| { @@ -489,7 +479,7 @@ impl<'hir> LoweringContext<'_, 'hir> { let segments = prefix.segments.iter().chain(path.segments.iter()).cloned().collect(); match tree.kind { - UseTreeKind::Simple(rename, id1, id2) => { + UseTreeKind::Simple(rename) => { *ident = tree.ident(); // First, apply the prefix to the path. @@ -505,66 +495,16 @@ impl<'hir> LoweringContext<'_, 'hir> { } } - let mut resolutions = self.expect_full_res_from_use(id).fuse(); - // We want to return *something* from this function, so hold onto the first item - // for later. - let ret_res = self.lower_res(resolutions.next().unwrap_or(Res::Err)); - - // Here, we are looping over namespaces, if they exist for the definition - // being imported. We only handle type and value namespaces because we - // won't be dealing with macros in the rest of the compiler. - // Essentially a single `use` which imports two names is desugared into - // two imports. - for new_node_id in [id1, id2] { - let new_id = self.local_def_id(new_node_id); - let Some(res) = resolutions.next() else { - debug_assert!(self.children.iter().find(|(id, _)| id == &new_id).is_none()); - // Associate an HirId to both ids even if there is no resolution. - self.children.push(( - new_id, - hir::MaybeOwner::NonOwner(hir::HirId::make_owner(new_id))), - ); - continue; - }; - let ident = *ident; - let mut path = path.clone(); - for seg in &mut path.segments { - // Give the cloned segment the same resolution information - // as the old one (this is needed for stability checking). - let new_id = self.next_node_id(); - self.resolver.clone_res(seg.id, new_id); - seg.id = new_id; - } - let span = path.span; - - self.with_hir_id_owner(new_node_id, |this| { - let res = this.lower_res(res); - let path = this.lower_path_extra(res, &path, ParamMode::Explicit); - let kind = hir::ItemKind::Use(path, hir::UseKind::Single); - if let Some(attrs) = attrs { - this.attrs.insert(hir::ItemLocalId::new(0), attrs); - } - - let item = hir::Item { - owner_id: hir::OwnerId { def_id: new_id }, - ident: this.lower_ident(ident), - kind, - vis_span, - span: this.lower_span(span), - }; - hir::OwnerNode::Item(this.arena.alloc(item)) - }); - } - - let path = self.lower_path_extra(ret_res, &path, ParamMode::Explicit); + let res = + self.expect_full_res_from_use(id).map(|res| self.lower_res(res)).collect(); + let path = self.lower_use_path(res, &path, ParamMode::Explicit); hir::ItemKind::Use(path, hir::UseKind::Single) } UseTreeKind::Glob => { - let path = self.lower_path( - id, - &Path { segments, span: path.span, tokens: None }, - ParamMode::Explicit, - ); + let res = self.expect_full_res(id); + let res = smallvec![self.lower_res(res)]; + let path = Path { segments, span: path.span, tokens: None }; + let path = self.lower_use_path(res, &path, ParamMode::Explicit); hir::ItemKind::Use(path, hir::UseKind::Glob) } UseTreeKind::Nested(ref trees) => { @@ -634,9 +574,9 @@ impl<'hir> LoweringContext<'_, 'hir> { }); } - let res = self.expect_full_res_from_use(id).next().unwrap_or(Res::Err); - let res = self.lower_res(res); - let path = self.lower_path_extra(res, &prefix, ParamMode::Explicit); + let res = + self.expect_full_res_from_use(id).map(|res| self.lower_res(res)).collect(); + let path = self.lower_use_path(res, &prefix, ParamMode::Explicit); hir::ItemKind::Use(path, hir::UseKind::ListStem) } } @@ -766,6 +706,7 @@ impl<'hir> LoweringContext<'_, 'hir> { fn lower_trait_item(&mut self, i: &AssocItem) -> &'hir hir::TraitItem<'hir> { let hir_id = self.lower_node_id(i.id); + self.lower_attrs(hir_id, &i.attrs); let trait_item_def_id = hir_id.expect_owner(); let (generics, kind, has_default) = match &i.kind { @@ -789,7 +730,7 @@ impl<'hir> LoweringContext<'_, 'hir> { AssocItemKind::Fn(box Fn { sig, generics, body: Some(body), .. }) => { let asyncness = sig.header.asyncness; let body_id = - self.lower_maybe_async_body(i.span, &sig.decl, asyncness, Some(&body)); + self.lower_maybe_async_body(i.span, hir_id, &sig.decl, asyncness, Some(&body)); let (generics, sig) = self.lower_method_sig( generics, sig, @@ -824,7 +765,6 @@ impl<'hir> LoweringContext<'_, 'hir> { AssocItemKind::MacCall(..) => panic!("macro item shouldn't exist at this point"), }; - self.lower_attrs(hir_id, &i.attrs); let item = hir::TraitItem { owner_id: trait_item_def_id, ident: self.lower_ident(i.ident), @@ -863,6 +803,8 @@ impl<'hir> LoweringContext<'_, 'hir> { // Since `default impl` is not yet implemented, this is always true in impls. let has_value = true; let (defaultness, _) = self.lower_defaultness(i.kind.defaultness(), has_value); + let hir_id = self.lower_node_id(i.id); + self.lower_attrs(hir_id, &i.attrs); let (generics, kind) = match &i.kind { AssocItemKind::Const(_, ty, expr) => { @@ -875,8 +817,13 @@ impl<'hir> LoweringContext<'_, 'hir> { AssocItemKind::Fn(box Fn { sig, generics, body, .. }) => { self.current_item = Some(i.span); let asyncness = sig.header.asyncness; - let body_id = - self.lower_maybe_async_body(i.span, &sig.decl, asyncness, body.as_deref()); + let body_id = self.lower_maybe_async_body( + i.span, + hir_id, + &sig.decl, + asyncness, + body.as_deref(), + ); let (generics, sig) = self.lower_method_sig( generics, sig, @@ -909,8 +856,6 @@ impl<'hir> LoweringContext<'_, 'hir> { AssocItemKind::MacCall(..) => panic!("`TyMac` should have been expanded by now"), }; - let hir_id = self.lower_node_id(i.id); - self.lower_attrs(hir_id, &i.attrs); let item = hir::ImplItem { owner_id: hir_id.expect_owner(), ident: self.lower_ident(i.ident), @@ -1043,6 +988,7 @@ impl<'hir> LoweringContext<'_, 'hir> { fn lower_maybe_async_body( &mut self, span: Span, + fn_id: hir::HirId, decl: &FnDecl, asyncness: Async, body: Option<&Block>, @@ -1193,6 +1139,7 @@ impl<'hir> LoweringContext<'_, 'hir> { let async_expr = this.make_async_expr( CaptureBy::Value, + Some(fn_id), closure_id, None, body.span, diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index 1d279706278..0258f8fd2d9 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -487,6 +487,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { parent: LocalDefId, node_id: ast::NodeId, data: DefPathData, + span: Span, ) -> LocalDefId { debug_assert_ne!(node_id, ast::DUMMY_NODE_ID); assert!( @@ -497,7 +498,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { self.tcx.hir().def_key(self.local_def_id(node_id)), ); - let def_id = self.tcx.create_def(parent, data).def_id(); + let def_id = self.tcx.at(span).create_def(parent, data).def_id(); debug!("create_def: def_id_to_node_id[{:?}] <-> {:?}", def_id, node_id); self.resolver.node_id_to_def_id.insert(node_id, def_id); @@ -823,6 +824,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { self.current_hir_id_owner.def_id, param, DefPathData::LifetimeNs(kw::UnderscoreLifetime), + ident.span, ); debug!(?_def_id); @@ -1151,15 +1153,16 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { let parent_def_id = self.current_hir_id_owner; let node_id = self.next_node_id(); + let span = self.lower_span(ty.span); // Add a definition for the in-band const def. let def_id = self.create_def( parent_def_id.def_id, node_id, DefPathData::AnonConst, + span, ); - let span = self.lower_span(ty.span); let path_expr = Expr { id: ty.id, kind: ExprKind::Path(qself.clone(), path.clone()), @@ -1353,12 +1356,13 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { itctx, ), ImplTraitContext::Universal => { + let span = t.span; self.create_def( self.current_hir_id_owner.def_id, *def_node_id, DefPathData::ImplTrait, + span, ); - let span = t.span; let ident = Ident::from_str_and_span(&pprust::ty_to_string(t), span); let (param, bounds, path) = self.lower_generic_and_bounds(*def_node_id, span, ident, bounds); @@ -1455,6 +1459,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { self.current_hir_id_owner.def_id, opaque_ty_node_id, DefPathData::ImplTrait, + opaque_ty_span, ); debug!(?opaque_ty_def_id); @@ -1608,6 +1613,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { parent_def_id, node_id, DefPathData::LifetimeNs(lifetime.ident.name), + lifetime.ident.span, ); remapping.insert(old_def_id, new_def_id); @@ -1624,6 +1630,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { parent_def_id, node_id, DefPathData::LifetimeNs(kw::UnderscoreLifetime), + lifetime.ident.span, ); remapping.insert(old_def_id, new_def_id); @@ -1806,7 +1813,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { let fn_def_id = self.local_def_id(fn_node_id); let opaque_ty_def_id = - self.create_def(fn_def_id, opaque_ty_node_id, DefPathData::ImplTrait); + self.create_def(fn_def_id, opaque_ty_node_id, DefPathData::ImplTrait, opaque_ty_span); // When we create the opaque type for this async fn, it is going to have // to capture all the lifetimes involved in the signature (including in the @@ -1866,6 +1873,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { opaque_ty_def_id, inner_node_id, DefPathData::LifetimeNs(ident.name), + ident.span, ); new_remapping.insert(outer_def_id, inner_def_id); diff --git a/compiler/rustc_ast_lowering/src/path.rs b/compiler/rustc_ast_lowering/src/path.rs index dc85b5e95ea..8d23c26e603 100644 --- a/compiler/rustc_ast_lowering/src/path.rs +++ b/compiler/rustc_ast_lowering/src/path.rs @@ -12,7 +12,7 @@ use rustc_hir::GenericArg; use rustc_span::symbol::{kw, Ident}; use rustc_span::{BytePos, Span, DUMMY_SP}; -use smallvec::smallvec; +use smallvec::{smallvec, SmallVec}; impl<'a, 'hir> LoweringContext<'a, 'hir> { #[instrument(level = "trace", skip(self))] @@ -144,13 +144,13 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { ); } - pub(crate) fn lower_path_extra( + pub(crate) fn lower_use_path( &mut self, - res: Res, + res: SmallVec<[Res; 3]>, p: &Path, param_mode: ParamMode, - ) -> &'hir hir::Path<'hir> { - self.arena.alloc(hir::Path { + ) -> &'hir hir::UsePath<'hir> { + self.arena.alloc(hir::UsePath { res, segments: self.arena.alloc_from_iter(p.segments.iter().map(|segment| { self.lower_path_segment( @@ -165,17 +165,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { }) } - pub(crate) fn lower_path( - &mut self, - id: NodeId, - p: &Path, - param_mode: ParamMode, - ) -> &'hir hir::Path<'hir> { - let res = self.expect_full_res(id); - let res = self.lower_res(res); - self.lower_path_extra(res, p, param_mode) - } - pub(crate) fn lower_path_segment( &mut self, path_span: Span, diff --git a/compiler/rustc_ast_passes/src/ast_validation.rs b/compiler/rustc_ast_passes/src/ast_validation.rs index e47c4344546..eb9c841d80c 100644 --- a/compiler/rustc_ast_passes/src/ast_validation.rs +++ b/compiler/rustc_ast_passes/src/ast_validation.rs @@ -912,7 +912,7 @@ fn validate_generic_param_order( impl<'a> Visitor<'a> for AstValidator<'a> { fn visit_attribute(&mut self, attr: &Attribute) { - validate_attr::check_meta(&self.session.parse_sess, attr); + validate_attr::check_attr(&self.session.parse_sess, attr); } fn visit_expr(&mut self, expr: &'a Expr) { diff --git a/compiler/rustc_ast_pretty/src/pprust/state.rs b/compiler/rustc_ast_pretty/src/pprust/state.rs index 374e0a97063..d3d8431c163 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state.rs @@ -19,7 +19,7 @@ use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece}; use rustc_span::edition::Edition; use rustc_span::source_map::{SourceMap, Spanned}; use rustc_span::symbol::{kw, sym, Ident, IdentPrinter, Symbol}; -use rustc_span::{BytePos, FileName, Span}; +use rustc_span::{BytePos, FileName, Span, DUMMY_SP}; use rustc_ast::attr::AttrIdGenerator; use std::borrow::Cow; @@ -120,17 +120,20 @@ pub fn print_crate<'a>( // of the feature gate, so we fake them up here. // `#![feature(prelude_import)]` - let pi_nested = attr::mk_nested_word_item(Ident::with_dummy_span(sym::prelude_import)); - let list = attr::mk_list_item(Ident::with_dummy_span(sym::feature), vec![pi_nested]); - let fake_attr = attr::mk_attr_inner(g, list); + let fake_attr = attr::mk_attr_nested_word( + g, + ast::AttrStyle::Inner, + sym::feature, + sym::prelude_import, + DUMMY_SP, + ); s.print_attribute(&fake_attr); // Currently, in Rust 2018 we don't have `extern crate std;` at the crate // root, so this is not needed, and actually breaks things. if edition == Edition::Edition2015 { // `#![no_std]` - let no_std_meta = attr::mk_word_item(Ident::with_dummy_span(sym::no_std)); - let fake_attr = attr::mk_attr_inner(g, no_std_meta); + let fake_attr = attr::mk_attr_word(g, ast::AttrStyle::Inner, sym::no_std, DUMMY_SP); s.print_attribute(&fake_attr); } } @@ -516,7 +519,7 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere ast::MetaItemKind::List(items) => { self.print_path(&item.path, false, 0); self.popen(); - self.commasep(Consistent, &items, |s, i| s.print_meta_list_item(i)); + self.commasep(Consistent, items, |s, i| s.print_meta_list_item(i)); self.pclose(); } } @@ -533,7 +536,7 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere fn print_tt(&mut self, tt: &TokenTree, convert_dollar_crate: bool) { match tt { TokenTree::Token(token, _) => { - let token_str = self.token_to_string_ext(&token, convert_dollar_crate); + let token_str = self.token_to_string_ext(token, convert_dollar_crate); self.word(token_str); if let token::DocComment(..) = token.kind { self.hardbreak() @@ -995,7 +998,7 @@ impl<'a> State<'a> { ast::AssocConstraintKind::Bound { bounds } => { if !bounds.is_empty() { self.word_nbsp(":"); - self.print_type_bounds(&bounds); + self.print_type_bounds(bounds); } } } @@ -1032,7 +1035,7 @@ impl<'a> State<'a> { } ast::TyKind::Tup(elts) => { self.popen(); - self.commasep(Inconsistent, &elts, |s, ty| s.print_type(ty)); + self.commasep(Inconsistent, elts, |s, ty| s.print_type(ty)); if elts.len() == 1 { self.word(","); } @@ -1251,7 +1254,7 @@ impl<'a> State<'a> { self.popen(); self.commasep(Consistent, &args, |s, arg| match arg { - AsmArg::Template(template) => s.print_string(&template, ast::StrStyle::Cooked), + AsmArg::Template(template) => s.print_string(template, ast::StrStyle::Cooked), AsmArg::Operand(op) => { let print_reg_or_class = |s: &mut Self, r: &InlineAsmRegOrRegClass| match r { InlineAsmRegOrRegClass::Reg(r) => s.print_symbol(*r, ast::StrStyle::Cooked), @@ -1421,11 +1424,11 @@ impl<'a> State<'a> { self.print_path(path, true, 0); } self.popen(); - self.commasep(Inconsistent, &elts, |s, p| s.print_pat(p)); + self.commasep(Inconsistent, elts, |s, p| s.print_pat(p)); self.pclose(); } PatKind::Or(pats) => { - self.strsep("|", true, Inconsistent, &pats, |s, p| s.print_pat(p)); + self.strsep("|", true, Inconsistent, pats, |s, p| s.print_pat(p)); } PatKind::Path(None, path) => { self.print_path(path, true, 0); @@ -1447,7 +1450,7 @@ impl<'a> State<'a> { } self.commasep_cmnt( Consistent, - &fields, + fields, |s, f| { s.cbox(INDENT_UNIT); if !f.is_shorthand { @@ -1472,7 +1475,7 @@ impl<'a> State<'a> { } PatKind::Tuple(elts) => { self.popen(); - self.commasep(Inconsistent, &elts, |s, p| s.print_pat(p)); + self.commasep(Inconsistent, elts, |s, p| s.print_pat(p)); if elts.len() == 1 { self.word(","); } @@ -1495,7 +1498,7 @@ impl<'a> State<'a> { self.print_pat(inner); } } - PatKind::Lit(e) => self.print_expr(&**e), + PatKind::Lit(e) => self.print_expr(e), PatKind::Range(begin, end, Spanned { node: end_kind, .. }) => { if let Some(e) = begin { self.print_expr(e); @@ -1511,7 +1514,7 @@ impl<'a> State<'a> { } PatKind::Slice(elts) => { self.word("["); - self.commasep(Inconsistent, &elts, |s, p| s.print_pat(p)); + self.commasep(Inconsistent, elts, |s, p| s.print_pat(p)); self.word("]"); } PatKind::Rest => self.word(".."), @@ -1597,7 +1600,7 @@ impl<'a> State<'a> { self.word("<"); - self.commasep(Inconsistent, &generic_params, |s, param| { + self.commasep(Inconsistent, generic_params, |s, param| { s.print_outer_attributes_inline(¶m.attrs); match ¶m.kind { @@ -1713,9 +1716,9 @@ impl<'a> State<'a> { where_clause: ast::WhereClause { has_where_token: false, predicates: Vec::new(), - span: rustc_span::DUMMY_SP, + span: DUMMY_SP, }, - span: rustc_span::DUMMY_SP, + span: DUMMY_SP, }; let header = ast::FnHeader { unsafety, ext, ..ast::FnHeader::default() }; self.print_fn(decl, header, name, &generics); diff --git a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs index 81483ac30d1..4ed16e337d2 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state/expr.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state/expr.rs @@ -305,10 +305,10 @@ impl<'a> State<'a> { self.print_expr_tup(exprs); } ast::ExprKind::Call(func, args) => { - self.print_expr_call(func, &args); + self.print_expr_call(func, args); } ast::ExprKind::MethodCall(box ast::MethodCall { seg, receiver, args, .. }) => { - self.print_expr_method_call(seg, &receiver, &args); + self.print_expr_method_call(seg, receiver, args); } ast::ExprKind::Binary(op, lhs, rhs) => { self.print_expr_binary(*op, lhs, rhs); @@ -402,6 +402,7 @@ impl<'a> State<'a> { fn_decl, body, fn_decl_span: _, + fn_arg_span: _, }) => { self.print_closure_binder(binder); self.print_movability(*movability); @@ -605,7 +606,7 @@ impl<'a> State<'a> { match binder { ast::ClosureBinder::NotPresent => {} ast::ClosureBinder::For { generic_params, .. } => { - self.print_formal_generic_params(&generic_params) + self.print_formal_generic_params(generic_params) } } } diff --git a/compiler/rustc_ast_pretty/src/pprust/state/item.rs b/compiler/rustc_ast_pretty/src/pprust/state/item.rs index c52f15401ab..e68a7b3f202 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state/item.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state/item.rs @@ -663,7 +663,7 @@ impl<'a> State<'a> { fn print_use_tree(&mut self, tree: &ast::UseTree) { match &tree.kind { - ast::UseTreeKind::Simple(rename, ..) => { + ast::UseTreeKind::Simple(rename) => { self.print_path(&tree.prefix, false, 0); if let &Some(rename) = rename { self.nbsp(); diff --git a/compiler/rustc_borrowck/src/nll.rs b/compiler/rustc_borrowck/src/nll.rs index 4a12e1b1b92..e379e647062 100644 --- a/compiler/rustc_borrowck/src/nll.rs +++ b/compiler/rustc_borrowck/src/nll.rs @@ -73,7 +73,7 @@ pub(crate) fn replace_regions_in_mir<'tcx>( // Replace all remaining regions with fresh inference variables. renumber::renumber_mir(infcx, body, promoted); - dump_mir(infcx.tcx, None, "renumber", &0, body, |_, _| Ok(())); + dump_mir(infcx.tcx, false, "renumber", &0, body, |_, _| Ok(())); universal_regions } @@ -331,7 +331,7 @@ pub(super) fn dump_mir_results<'tcx>( return; } - dump_mir(infcx.tcx, None, "nll", &0, body, |pass_where, out| { + dump_mir(infcx.tcx, false, "nll", &0, body, |pass_where, out| { match pass_where { // Before the CFG, dump out the values for each region variable. PassWhere::BeforeCFG => { @@ -358,15 +358,13 @@ pub(super) fn dump_mir_results<'tcx>( // Also dump the inference graph constraints as a graphviz file. let _: io::Result<()> = try { - let mut file = - create_dump_file(infcx.tcx, "regioncx.all.dot", None, "nll", &0, body.source)?; + let mut file = create_dump_file(infcx.tcx, "regioncx.all.dot", false, "nll", &0, body)?; regioncx.dump_graphviz_raw_constraints(&mut file)?; }; // Also dump the inference graph constraints as a graphviz file. let _: io::Result<()> = try { - let mut file = - create_dump_file(infcx.tcx, "regioncx.scc.dot", None, "nll", &0, body.source)?; + let mut file = create_dump_file(infcx.tcx, "regioncx.scc.dot", false, "nll", &0, body)?; regioncx.dump_graphviz_scc_constraints(&mut file)?; }; } diff --git a/compiler/rustc_builtin_macros/src/alloc_error_handler.rs b/compiler/rustc_builtin_macros/src/alloc_error_handler.rs index eaf1b1167cf..460175ed2ac 100644 --- a/compiler/rustc_builtin_macros/src/alloc_error_handler.rs +++ b/compiler/rustc_builtin_macros/src/alloc_error_handler.rs @@ -95,9 +95,7 @@ fn generate_handler(cx: &ExtCtxt<'_>, handler: Ident, span: Span, sig_span: Span body, })); - let special = sym::rustc_std_internal_symbol; - let special = cx.meta_word(span, special); - let attrs = thin_vec![cx.attribute(special)]; + let attrs = thin_vec![cx.attr_word(sym::rustc_std_internal_symbol, span)]; let item = cx.item(span, Ident::from_str_and_span("__rg_oom", span), attrs, kind); cx.stmt_item(sig_span, item) diff --git a/compiler/rustc_builtin_macros/src/assert/context.rs b/compiler/rustc_builtin_macros/src/assert/context.rs index 9f42a0c2d58..d82bc0453f5 100644 --- a/compiler/rustc_builtin_macros/src/assert/context.rs +++ b/compiler/rustc_builtin_macros/src/assert/context.rs @@ -1,5 +1,4 @@ use rustc_ast::{ - attr, ptr::P, token, tokenstream::{DelimSpan, TokenStream, TokenTree}, @@ -107,7 +106,7 @@ impl<'cx, 'a> Context<'cx, 'a> { ( UseTree { prefix: this.cx.path(this.span, vec![Ident::with_dummy_span(sym)]), - kind: UseTreeKind::Simple(None, DUMMY_NODE_ID, DUMMY_NODE_ID), + kind: UseTreeKind::Simple(None), span: this.span, }, DUMMY_NODE_ID, @@ -118,10 +117,7 @@ impl<'cx, 'a> Context<'cx, 'a> { self.cx.item( self.span, Ident::empty(), - thin_vec![self.cx.attribute(attr::mk_list_item( - Ident::new(sym::allow, self.span), - vec![attr::mk_nested_word_item(Ident::new(sym::unused_imports, self.span))], - ))], + thin_vec![self.cx.attr_nested_word(sym::allow, sym::unused_imports, self.span)], ItemKind::Use(UseTree { prefix: self.cx.path(self.span, self.cx.std_path(&[sym::asserting])), kind: UseTreeKind::Nested(vec![ diff --git a/compiler/rustc_builtin_macros/src/cfg_accessible.rs b/compiler/rustc_builtin_macros/src/cfg_accessible.rs index 86df3c44eb3..4e4cafc7182 100644 --- a/compiler/rustc_builtin_macros/src/cfg_accessible.rs +++ b/compiler/rustc_builtin_macros/src/cfg_accessible.rs @@ -37,10 +37,10 @@ impl MultiItemModifier for Expander { _is_derive_const: bool, ) -> ExpandResult<Vec<Annotatable>, Annotatable> { let template = AttributeTemplate { list: Some("path"), ..Default::default() }; - let attr = &ecx.attribute(meta_item.clone()); - validate_attr::check_builtin_attribute( + validate_attr::check_builtin_meta_item( &ecx.sess.parse_sess, - attr, + &meta_item, + ast::AttrStyle::Outer, sym::cfg_accessible, template, ); diff --git a/compiler/rustc_builtin_macros/src/derive.rs b/compiler/rustc_builtin_macros/src/derive.rs index c8a2fca00e8..fa5a45730ac 100644 --- a/compiler/rustc_builtin_macros/src/derive.rs +++ b/compiler/rustc_builtin_macros/src/derive.rs @@ -1,7 +1,7 @@ use crate::cfg_eval::cfg_eval; use rustc_ast as ast; -use rustc_ast::{attr, token, GenericParamKind, ItemKind, MetaItemKind, NestedMetaItem, StmtKind}; +use rustc_ast::{token, GenericParamKind, ItemKind, MetaItemKind, NestedMetaItem, StmtKind}; use rustc_errors::{struct_span_err, Applicability}; use rustc_expand::base::{Annotatable, ExpandResult, ExtCtxt, Indeterminate, MultiItemModifier}; use rustc_feature::AttributeTemplate; @@ -33,34 +33,36 @@ impl MultiItemModifier for Expander { ecx.resolver.resolve_derives(ecx.current_expansion.id, ecx.force_mode, &|| { let template = AttributeTemplate { list: Some("Trait1, Trait2, ..."), ..Default::default() }; - let attr = - attr::mk_attr_outer(&sess.parse_sess.attr_id_generator, meta_item.clone()); - validate_attr::check_builtin_attribute( + validate_attr::check_builtin_meta_item( &sess.parse_sess, - &attr, + &meta_item, + ast::AttrStyle::Outer, sym::derive, template, ); - let mut resolutions: Vec<_> = attr - .meta_item_list() - .unwrap_or_default() - .into_iter() - .filter_map(|nested_meta| match nested_meta { - NestedMetaItem::MetaItem(meta) => Some(meta), - NestedMetaItem::Lit(lit) => { - // Reject `#[derive("Debug")]`. - report_unexpected_meta_item_lit(sess, &lit); - None - } - }) - .map(|meta| { - // Reject `#[derive(Debug = "value", Debug(abc))]`, but recover the paths. - report_path_args(sess, &meta); - meta.path - }) - .map(|path| (path, dummy_annotatable(), None, self.0)) - .collect(); + let mut resolutions = match &meta_item.kind { + MetaItemKind::List(list) => { + list.iter() + .filter_map(|nested_meta| match nested_meta { + NestedMetaItem::MetaItem(meta) => Some(meta), + NestedMetaItem::Lit(lit) => { + // Reject `#[derive("Debug")]`. + report_unexpected_meta_item_lit(sess, &lit); + None + } + }) + .map(|meta| { + // Reject `#[derive(Debug = "value", Debug(abc))]`, but recover the + // paths. + report_path_args(sess, &meta); + meta.path.clone() + }) + .map(|path| (path, dummy_annotatable(), None, self.0)) + .collect() + } + _ => vec![], + }; // Do not configure or clone items unless necessary. match &mut resolutions[..] { diff --git a/compiler/rustc_builtin_macros/src/deriving/clone.rs b/compiler/rustc_builtin_macros/src/deriving/clone.rs index 2f19fbcac7d..23b96d4176d 100644 --- a/compiler/rustc_builtin_macros/src/deriving/clone.rs +++ b/compiler/rustc_builtin_macros/src/deriving/clone.rs @@ -68,8 +68,7 @@ pub fn expand_deriving_clone( _ => cx.span_bug(span, "`#[derive(Clone)]` on trait item or impl item"), } - let inline = cx.meta_word(span, sym::inline); - let attrs = thin_vec![cx.attribute(inline)]; + let attrs = thin_vec![cx.attr_word(sym::inline, span)]; let trait_def = TraitDef { span, path: path_std!(clone::Clone), diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs index a0b836171be..f861d47ed40 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs @@ -5,7 +5,7 @@ use crate::deriving::path_std; use rustc_ast::{self as ast, MetaItem}; use rustc_data_structures::fx::FxHashSet; use rustc_expand::base::{Annotatable, ExtCtxt}; -use rustc_span::symbol::{sym, Ident}; +use rustc_span::symbol::sym; use rustc_span::Span; use thin_vec::thin_vec; @@ -18,11 +18,11 @@ pub fn expand_deriving_eq( is_const: bool, ) { let span = cx.with_def_site_ctxt(span); - let inline = cx.meta_word(span, sym::inline); - let hidden = rustc_ast::attr::mk_nested_word_item(Ident::new(sym::hidden, span)); - let doc = rustc_ast::attr::mk_list_item(Ident::new(sym::doc, span), vec![hidden]); - let no_coverage = cx.meta_word(span, sym::no_coverage); - let attrs = thin_vec![cx.attribute(inline), cx.attribute(doc), cx.attribute(no_coverage)]; + let attrs = thin_vec![ + cx.attr_word(sym::inline, span), + cx.attr_nested_word(sym::doc, sym::hidden, span), + cx.attr_word(sym::no_coverage, span) + ]; let trait_def = TraitDef { span, path: path_std!(cmp::Eq), diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs index 52780981248..96d18c7afb9 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs @@ -15,8 +15,7 @@ pub fn expand_deriving_ord( push: &mut dyn FnMut(Annotatable), is_const: bool, ) { - let inline = cx.meta_word(span, sym::inline); - let attrs = thin_vec![cx.attribute(inline)]; + let attrs = thin_vec![cx.attr_word(sym::inline, span)]; let trait_def = TraitDef { span, path: path_std!(cmp::Ord), diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs index 34de4a620b4..7f95551fc48 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs @@ -68,8 +68,7 @@ pub fn expand_deriving_partial_eq( // No need to generate `ne`, the default suffices, and not generating it is // faster. - let inline = cx.meta_word(span, sym::inline); - let attrs = thin_vec![cx.attribute(inline)]; + let attrs = thin_vec![cx.attr_word(sym::inline, span)]; let methods = vec![MethodDef { name: sym::eq, generics: Bounds::empty(), diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs index 6cc8f26df55..5c4e5b7f816 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs @@ -19,8 +19,7 @@ pub fn expand_deriving_partial_ord( let ret_ty = Path(Path::new_(pathvec_std!(option::Option), vec![Box::new(ordering_ty)], PathKind::Std)); - let inline = cx.meta_word(span, sym::inline); - let attrs = thin_vec![cx.attribute(inline)]; + let attrs = thin_vec![cx.attr_word(sym::inline, span)]; let partial_cmp_def = MethodDef { name: sym::partial_cmp, diff --git a/compiler/rustc_builtin_macros/src/deriving/default.rs b/compiler/rustc_builtin_macros/src/deriving/default.rs index 93f297ad88b..e88d2e409c6 100644 --- a/compiler/rustc_builtin_macros/src/deriving/default.rs +++ b/compiler/rustc_builtin_macros/src/deriving/default.rs @@ -20,8 +20,7 @@ pub fn expand_deriving_default( ) { item.visit_with(&mut DetectNonVariantDefaultAttr { cx }); - let inline = cx.meta_word(span, sym::inline); - let attrs = thin_vec![cx.attribute(inline)]; + let attrs = thin_vec![cx.attr_word(sym::inline, span)]; let trait_def = TraitDef { span, path: Path::new(vec![kw::Default, sym::Default]), @@ -146,7 +145,7 @@ fn extract_default_variant<'a>( let suggestion = default_variants .iter() .filter_map(|v| { - if v.ident == variant.ident { + if v.span == variant.span { None } else { Some((cx.sess.find_by_name(&v.attrs, kw::Default)?.span, String::new())) diff --git a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs index 1467d4eaec0..7fcaf0b436b 100644 --- a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs +++ b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs @@ -718,7 +718,7 @@ impl<'a> TraitDef<'a> { let path = cx.path_all(self.span, false, vec![type_ident], self_params); let self_type = cx.ty_path(path); - let attr = cx.attribute(cx.meta_word(self.span, sym::automatically_derived)); + let attr = cx.attr_word(sym::automatically_derived, self.span); let attrs = thin_vec![attr]; let opt_trait_ref = Some(trait_ref); diff --git a/compiler/rustc_builtin_macros/src/deriving/mod.rs b/compiler/rustc_builtin_macros/src/deriving/mod.rs index 73a1df5d426..13fdd4fa68c 100644 --- a/compiler/rustc_builtin_macros/src/deriving/mod.rs +++ b/compiler/rustc_builtin_macros/src/deriving/mod.rs @@ -188,7 +188,7 @@ fn inject_impl_of_structural_trait( .cloned(), ); // Mark as `automatically_derived` to avoid some silly lints. - attrs.push(cx.attribute(cx.meta_word(span, sym::automatically_derived))); + attrs.push(cx.attr_word(sym::automatically_derived, span)); let newitem = cx.item( span, diff --git a/compiler/rustc_builtin_macros/src/global_allocator.rs b/compiler/rustc_builtin_macros/src/global_allocator.rs index 45b9b8ab6b6..0817aed037e 100644 --- a/compiler/rustc_builtin_macros/src/global_allocator.rs +++ b/compiler/rustc_builtin_macros/src/global_allocator.rs @@ -115,9 +115,7 @@ impl AllocFnFactory<'_, '_> { } fn attrs(&self) -> AttrVec { - let special = sym::rustc_std_internal_symbol; - let special = self.cx.meta_word(self.span, special); - thin_vec![self.cx.attribute(special)] + thin_vec![self.cx.attr_word(sym::rustc_std_internal_symbol, self.span)] } fn arg_ty( diff --git a/compiler/rustc_builtin_macros/src/lib.rs b/compiler/rustc_builtin_macros/src/lib.rs index 1cbbfb43264..75cfac72384 100644 --- a/compiler/rustc_builtin_macros/src/lib.rs +++ b/compiler/rustc_builtin_macros/src/lib.rs @@ -45,6 +45,7 @@ mod log_syntax; mod source_util; mod test; mod trace_macros; +mod type_ascribe; mod util; pub mod asm; @@ -92,6 +93,7 @@ pub fn register_builtin_macros(resolver: &mut dyn ResolverExpand) { unreachable: edition_panic::expand_unreachable, stringify: source_util::expand_stringify, trace_macros: trace_macros::expand_trace_macros, + type_ascribe: type_ascribe::expand_type_ascribe, } register_attr! { diff --git a/compiler/rustc_builtin_macros/src/proc_macro_harness.rs b/compiler/rustc_builtin_macros/src/proc_macro_harness.rs index ebe1c3663e3..ece660cf6f6 100644 --- a/compiler/rustc_builtin_macros/src/proc_macro_harness.rs +++ b/compiler/rustc_builtin_macros/src/proc_macro_harness.rs @@ -1,6 +1,3 @@ -use std::mem; - -use rustc_ast::attr; use rustc_ast::ptr::P; use rustc_ast::visit::{self, Visitor}; use rustc_ast::{self as ast, NodeId}; @@ -13,6 +10,7 @@ use rustc_span::source_map::SourceMap; use rustc_span::symbol::{kw, sym, Ident, Symbol}; use rustc_span::{Span, DUMMY_SP}; use smallvec::smallvec; +use std::mem; struct ProcMacroDerive { id: NodeId, @@ -365,14 +363,8 @@ fn mk_decls(cx: &mut ExtCtxt<'_>, macros: &[ProcMacro]) -> P<ast::Item> { cx.expr_array_ref(span, decls), ) .map(|mut i| { - let attr = cx.meta_word(span, sym::rustc_proc_macro_decls); - i.attrs.push(cx.attribute(attr)); - - let deprecated_attr = attr::mk_nested_word_item(Ident::new(sym::deprecated, span)); - let allow_deprecated_attr = - attr::mk_list_item(Ident::new(sym::allow, span), vec![deprecated_attr]); - i.attrs.push(cx.attribute(allow_deprecated_attr)); - + i.attrs.push(cx.attr_word(sym::rustc_proc_macro_decls, span)); + i.attrs.push(cx.attr_nested_word(sym::allow, sym::deprecated, span)); i }); diff --git a/compiler/rustc_builtin_macros/src/standard_library_imports.rs b/compiler/rustc_builtin_macros/src/standard_library_imports.rs index 49ef538f04e..f73f20c84a3 100644 --- a/compiler/rustc_builtin_macros/src/standard_library_imports.rs +++ b/compiler/rustc_builtin_macros/src/standard_library_imports.rs @@ -52,7 +52,7 @@ pub fn inject( cx.item( span, ident, - thin_vec![cx.attribute(cx.meta_word(span, sym::macro_use))], + thin_vec![cx.attr_word(sym::macro_use, span)], ast::ItemKind::ExternCrate(None), ), ); @@ -79,7 +79,7 @@ pub fn inject( let use_item = cx.item( span, Ident::empty(), - thin_vec![cx.attribute(cx.meta_word(span, sym::prelude_import))], + thin_vec![cx.attr_word(sym::prelude_import, span)], ast::ItemKind::Use(ast::UseTree { prefix: cx.path(span, import_path), kind: ast::UseTreeKind::Glob, diff --git a/compiler/rustc_builtin_macros/src/test.rs b/compiler/rustc_builtin_macros/src/test.rs index 82baf1da28f..3bcb60478ef 100644 --- a/compiler/rustc_builtin_macros/src/test.rs +++ b/compiler/rustc_builtin_macros/src/test.rs @@ -2,7 +2,6 @@ /// Ideally, this code would be in libtest but for efficiency and error messages it lives here. use crate::util::{check_builtin_macro_attribute, warn_on_duplicate_attribute}; use rustc_ast as ast; -use rustc_ast::attr; use rustc_ast::ptr::P; use rustc_ast_pretty::pprust; use rustc_errors::Applicability; @@ -47,11 +46,7 @@ pub fn expand_test_case( tokens: None, }; item.ident.span = item.ident.span.with_ctxt(sp.ctxt()); - item.attrs.push(ecx.attribute(attr::mk_name_value_item_str( - Ident::new(sym::rustc_test_marker, sp), - test_path_symbol, - sp, - ))); + item.attrs.push(ecx.attr_name_value_str(sym::rustc_test_marker, test_path_symbol, sp)); item }); @@ -241,16 +236,9 @@ pub fn expand_test_or_bench( Ident::new(item.ident.name, sp), thin_vec![ // #[cfg(test)] - cx.attribute(attr::mk_list_item( - Ident::new(sym::cfg, attr_sp), - vec![attr::mk_nested_word_item(Ident::new(sym::test, attr_sp))], - )), + cx.attr_nested_word(sym::cfg, sym::test, attr_sp), // #[rustc_test_marker = "test_case_sort_key"] - cx.attribute(attr::mk_name_value_item_str( - Ident::new(sym::rustc_test_marker, attr_sp), - test_path_symbol, - attr_sp, - )), + cx.attr_name_value_str(sym::rustc_test_marker, test_path_symbol, attr_sp), ] .into(), // const $ident: test::TestDescAndFn = diff --git a/compiler/rustc_builtin_macros/src/test_harness.rs b/compiler/rustc_builtin_macros/src/test_harness.rs index 3269f62b105..b5bce9278a9 100644 --- a/compiler/rustc_builtin_macros/src/test_harness.rs +++ b/compiler/rustc_builtin_macros/src/test_harness.rs @@ -185,13 +185,12 @@ impl<'a> MutVisitor for EntryPointCleaner<'a> { let item = match entry_point_type(self.sess, &item, self.depth) { EntryPointType::MainNamed | EntryPointType::RustcMainAttr | EntryPointType::Start => { item.map(|ast::Item { id, ident, attrs, kind, vis, span, tokens }| { - let allow_ident = Ident::new(sym::allow, self.def_site); - let dc_nested = - attr::mk_nested_word_item(Ident::new(sym::dead_code, self.def_site)); - let allow_dead_code_item = attr::mk_list_item(allow_ident, vec![dc_nested]); - let allow_dead_code = attr::mk_attr_outer( + let allow_dead_code = attr::mk_attr_nested_word( &self.sess.parse_sess.attr_id_generator, - allow_dead_code_item, + ast::AttrStyle::Outer, + sym::allow, + sym::dead_code, + self.def_site, ); let attrs = attrs .into_iter() @@ -309,8 +308,7 @@ fn mk_main(cx: &mut TestCtxt<'_>) -> P<ast::Item> { ); // #[rustc_main] - let main_meta = ecx.meta_word(sp, sym::rustc_main); - let main_attr = ecx.attribute(main_meta); + let main_attr = ecx.attr_word(sym::rustc_main, sp); // pub fn main() { ... } let main_ret_ty = ecx.ty(sp, ast::TyKind::Tup(vec![])); diff --git a/compiler/rustc_builtin_macros/src/type_ascribe.rs b/compiler/rustc_builtin_macros/src/type_ascribe.rs new file mode 100644 index 00000000000..72b85af1486 --- /dev/null +++ b/compiler/rustc_builtin_macros/src/type_ascribe.rs @@ -0,0 +1,35 @@ +use rustc_ast::ptr::P; +use rustc_ast::tokenstream::TokenStream; +use rustc_ast::{token, Expr, ExprKind, Ty}; +use rustc_errors::PResult; +use rustc_expand::base::{self, DummyResult, ExtCtxt, MacEager}; +use rustc_span::Span; + +pub fn expand_type_ascribe( + cx: &mut ExtCtxt<'_>, + span: Span, + tts: TokenStream, +) -> Box<dyn base::MacResult + 'static> { + let (expr, ty) = match parse_ascribe(cx, tts) { + Ok(parsed) => parsed, + Err(mut err) => { + err.emit(); + return DummyResult::any(span); + } + }; + + let asc_expr = cx.expr(span, ExprKind::Type(expr, ty)); + + return MacEager::expr(asc_expr); +} + +fn parse_ascribe<'a>(cx: &mut ExtCtxt<'a>, stream: TokenStream) -> PResult<'a, (P<Expr>, P<Ty>)> { + let mut parser = cx.new_parser_from_tts(stream); + + let expr = parser.parse_expr()?; + parser.expect(&token::Comma)?; + + let ty = parser.parse_ty()?; + + Ok((expr, ty)) +} diff --git a/compiler/rustc_builtin_macros/src/util.rs b/compiler/rustc_builtin_macros/src/util.rs index 527fe50eff0..83812631c2f 100644 --- a/compiler/rustc_builtin_macros/src/util.rs +++ b/compiler/rustc_builtin_macros/src/util.rs @@ -1,4 +1,4 @@ -use rustc_ast::{Attribute, MetaItem}; +use rustc_ast::{AttrStyle, Attribute, MetaItem}; use rustc_expand::base::{Annotatable, ExtCtxt}; use rustc_feature::AttributeTemplate; use rustc_lint_defs::builtin::DUPLICATE_MACRO_ATTRIBUTES; @@ -8,8 +8,13 @@ use rustc_span::Symbol; pub fn check_builtin_macro_attribute(ecx: &ExtCtxt<'_>, meta_item: &MetaItem, name: Symbol) { // All the built-in macro attributes are "words" at the moment. let template = AttributeTemplate { word: true, ..Default::default() }; - let attr = ecx.attribute(meta_item.clone()); - validate_attr::check_builtin_attribute(&ecx.sess.parse_sess, &attr, name, template); + validate_attr::check_builtin_meta_item( + &ecx.sess.parse_sess, + &meta_item, + AttrStyle::Outer, + name, + template, + ); } /// Emit a warning if the item is annotated with the given attribute. This is used to diagnose when diff --git a/compiler/rustc_codegen_cranelift/Cargo.lock b/compiler/rustc_codegen_cranelift/Cargo.lock index 3fa9d56cd01..3b406036c35 100644 --- a/compiler/rustc_codegen_cranelift/Cargo.lock +++ b/compiler/rustc_codegen_cranelift/Cargo.lock @@ -20,11 +20,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "c794e162a5eff65c72ef524dfe393eb923c354e350bb78b9c7383df13f3bc142" [[package]] -name = "ar" -version = "0.8.0" -source = "git+https://github.com/bjorn3/rust-ar.git?branch=do_not_remove_cg_clif_ranlib#de9ab0e56bf3a208381d342aa5b60f9ff2891648" - -[[package]] name = "arrayvec" version = "0.7.2" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -324,7 +319,6 @@ dependencies = [ name = "rustc_codegen_cranelift" version = "0.1.0" dependencies = [ - "ar", "cranelift-codegen", "cranelift-frontend", "cranelift-jit", diff --git a/compiler/rustc_codegen_cranelift/Cargo.toml b/compiler/rustc_codegen_cranelift/Cargo.toml index 09cf5b4a1ed..0fdd5de118c 100644 --- a/compiler/rustc_codegen_cranelift/Cargo.toml +++ b/compiler/rustc_codegen_cranelift/Cargo.toml @@ -18,7 +18,6 @@ target-lexicon = "0.12.0" gimli = { version = "0.26.0", default-features = false, features = ["write"]} object = { version = "0.29.0", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] } -ar = { git = "https://github.com/bjorn3/rust-ar.git", branch = "do_not_remove_cg_clif_ranlib" } indexmap = "1.9.1" libloading = { version = "0.7.3", optional = true } once_cell = "1.10.0" diff --git a/compiler/rustc_codegen_cranelift/src/archive.rs b/compiler/rustc_codegen_cranelift/src/archive.rs index f2e3bf16e61..5a29bc18def 100644 --- a/compiler/rustc_codegen_cranelift/src/archive.rs +++ b/compiler/rustc_codegen_cranelift/src/archive.rs @@ -1,35 +1,15 @@ -//! Creation of ar archives like for the lib and staticlib crate type - -use std::collections::BTreeMap; -use std::fs::File; -use std::io::{self, Read, Seek}; use std::path::{Path, PathBuf}; -use rustc_codegen_ssa::back::archive::{ArchiveBuilder, ArchiveBuilderBuilder}; +use rustc_codegen_ssa::back::archive::{ + get_native_object_symbols, ArArchiveBuilder, ArchiveBuilder, ArchiveBuilderBuilder, +}; use rustc_session::Session; -use object::read::archive::ArchiveFile; -use object::{Object, ObjectSymbol, ReadCache}; - -#[derive(Debug)] -enum ArchiveEntry { - FromArchive { archive_index: usize, file_range: (u64, u64) }, - File(PathBuf), -} - pub(crate) struct ArArchiveBuilderBuilder; impl ArchiveBuilderBuilder for ArArchiveBuilderBuilder { fn new_archive_builder<'a>(&self, sess: &'a Session) -> Box<dyn ArchiveBuilder<'a> + 'a> { - Box::new(ArArchiveBuilder { - sess, - use_gnu_style_archive: sess.target.archive_format == "gnu", - // FIXME fix builtin ranlib on macOS - no_builtin_ranlib: sess.target.is_like_osx, - - src_archives: vec![], - entries: vec![], - }) + Box::new(ArArchiveBuilder::new(sess, get_native_object_symbols)) } fn create_dll_import_lib( @@ -40,200 +20,6 @@ impl ArchiveBuilderBuilder for ArArchiveBuilderBuilder { _tmpdir: &Path, _is_direct_dependency: bool, ) -> PathBuf { - bug!("creating dll imports is not supported"); - } -} - -pub(crate) struct ArArchiveBuilder<'a> { - sess: &'a Session, - use_gnu_style_archive: bool, - no_builtin_ranlib: bool, - - src_archives: Vec<File>, - // Don't use `HashMap` here, as the order is important. `rust.metadata.bin` must always be at - // the end of an archive for linkers to not get confused. - entries: Vec<(Vec<u8>, ArchiveEntry)>, -} - -impl<'a> ArchiveBuilder<'a> for ArArchiveBuilder<'a> { - fn add_file(&mut self, file: &Path) { - self.entries.push(( - file.file_name().unwrap().to_str().unwrap().to_string().into_bytes(), - ArchiveEntry::File(file.to_owned()), - )); - } - - fn add_archive( - &mut self, - archive_path: &Path, - mut skip: Box<dyn FnMut(&str) -> bool + 'static>, - ) -> std::io::Result<()> { - let read_cache = ReadCache::new(std::fs::File::open(&archive_path)?); - let archive = ArchiveFile::parse(&read_cache).unwrap(); - let archive_index = self.src_archives.len(); - - for entry in archive.members() { - let entry = entry.map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?; - let file_name = String::from_utf8(entry.name().to_vec()) - .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?; - if !skip(&file_name) { - self.entries.push(( - file_name.into_bytes(), - ArchiveEntry::FromArchive { archive_index, file_range: entry.file_range() }, - )); - } - } - - self.src_archives.push(read_cache.into_inner()); - Ok(()) - } - - fn build(mut self: Box<Self>, output: &Path) -> bool { - enum BuilderKind { - Bsd(ar::Builder<File>), - Gnu(ar::GnuBuilder<File>), - } - - let sess = self.sess; - - let mut symbol_table = BTreeMap::new(); - - let mut entries = Vec::new(); - - for (mut entry_name, entry) in self.entries { - // FIXME only read the symbol table of the object files to avoid having to keep all - // object files in memory at once, or read them twice. - let data = match entry { - ArchiveEntry::FromArchive { archive_index, file_range } => { - // FIXME read symbols from symtab - let src_read_cache = &mut self.src_archives[archive_index]; - - src_read_cache.seek(io::SeekFrom::Start(file_range.0)).unwrap(); - let mut data = std::vec::from_elem(0, usize::try_from(file_range.1).unwrap()); - src_read_cache.read_exact(&mut data).unwrap(); - - data - } - ArchiveEntry::File(file) => std::fs::read(file).unwrap_or_else(|err| { - sess.fatal(&format!( - "error while reading object file during archive building: {}", - err - )); - }), - }; - - if !self.no_builtin_ranlib { - if symbol_table.contains_key(&entry_name) { - // The ar crate can't handle creating a symbol table in case of multiple archive - // members with the same name. Work around this by prepending a number until we - // get a unique name. - for i in 1.. { - let new_name = format!("{}_", i) - .into_bytes() - .into_iter() - .chain(entry_name.iter().copied()) - .collect::<Vec<_>>(); - if !symbol_table.contains_key(&new_name) { - entry_name = new_name; - break; - } - } - } - - match object::File::parse(&*data) { - Ok(object) => { - symbol_table.insert( - entry_name.to_vec(), - object - .symbols() - .filter_map(|symbol| { - if symbol.is_undefined() || symbol.is_local() { - None - } else { - symbol.name().map(|name| name.as_bytes().to_vec()).ok() - } - }) - .collect::<Vec<_>>(), - ); - } - Err(err) => { - let err = err.to_string(); - if err == "Unknown file magic" { - // Not an object file; skip it. - } else if object::read::archive::ArchiveFile::parse(&*data).is_ok() { - // Nested archive file; skip it. - } else { - sess.fatal(&format!( - "error parsing `{}` during archive creation: {}", - String::from_utf8_lossy(&entry_name), - err - )); - } - } - } - } - - entries.push((entry_name, data)); - } - - let mut builder = if self.use_gnu_style_archive { - BuilderKind::Gnu( - ar::GnuBuilder::new( - File::create(output).unwrap_or_else(|err| { - sess.fatal(&format!( - "error opening destination during archive building: {}", - err - )); - }), - entries.iter().map(|(name, _)| name.clone()).collect(), - ar::GnuSymbolTableFormat::Size32, - symbol_table, - ) - .unwrap(), - ) - } else { - BuilderKind::Bsd( - ar::Builder::new( - File::create(output).unwrap_or_else(|err| { - sess.fatal(&format!( - "error opening destination during archive building: {}", - err - )); - }), - symbol_table, - ) - .unwrap(), - ) - }; - - let any_members = !entries.is_empty(); - - // Add all files - for (entry_name, data) in entries.into_iter() { - let header = ar::Header::new(entry_name, data.len() as u64); - match builder { - BuilderKind::Bsd(ref mut builder) => builder.append(&header, &mut &*data).unwrap(), - BuilderKind::Gnu(ref mut builder) => builder.append(&header, &mut &*data).unwrap(), - } - } - - // Finalize archive - std::mem::drop(builder); - - if self.no_builtin_ranlib { - let ranlib = crate::toolchain::get_toolchain_binary(self.sess, "ranlib"); - - // Run ranlib to be able to link the archive - let status = std::process::Command::new(ranlib) - .arg(output) - .status() - .expect("Couldn't run ranlib"); - - if !status.success() { - self.sess.fatal(&format!("Ranlib exited with code {:?}", status.code())); - } - } - - any_members + unimplemented!("creating dll imports is not yet supported"); } } diff --git a/compiler/rustc_codegen_gcc/Cargo.lock b/compiler/rustc_codegen_gcc/Cargo.lock index 6df2102470f..1cb219e12e0 100644 --- a/compiler/rustc_codegen_gcc/Cargo.lock +++ b/compiler/rustc_codegen_gcc/Cargo.lock @@ -12,12 +12,6 @@ dependencies = [ ] [[package]] -name = "ar" -version = "0.8.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "450575f58f7bee32816abbff470cbc47797397c2a81e0eaced4b98436daf52e1" - -[[package]] name = "bitflags" version = "1.3.2" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -212,10 +206,8 @@ dependencies = [ name = "rustc_codegen_gcc" version = "0.1.0" dependencies = [ - "ar", "gccjit", "lang_tester", - "target-lexicon", "tempfile", ] @@ -229,12 +221,6 @@ dependencies = [ ] [[package]] -name = "target-lexicon" -version = "0.10.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ab0e7238dcc7b40a7be719a25365910f6807bd864f4cce6b2e6b873658e2b19d" - -[[package]] name = "tempfile" version = "3.2.0" source = "registry+https://github.com/rust-lang/crates.io-index" diff --git a/compiler/rustc_codegen_gcc/Cargo.toml b/compiler/rustc_codegen_gcc/Cargo.toml index 211d19a8dc8..1f3da2f799b 100644 --- a/compiler/rustc_codegen_gcc/Cargo.toml +++ b/compiler/rustc_codegen_gcc/Cargo.toml @@ -27,10 +27,6 @@ gccjit = { git = "https://github.com/antoyo/gccjit.rs" } # Local copy. #gccjit = { path = "../gccjit.rs" } -target-lexicon = "0.10.0" - -ar = "0.8.0" - [dev-dependencies] lang_tester = "0.3.9" tempfile = "3.1.0" diff --git a/compiler/rustc_codegen_gcc/src/archive.rs b/compiler/rustc_codegen_gcc/src/archive.rs index f18ae7ea5e9..11fa074f5ac 100644 --- a/compiler/rustc_codegen_gcc/src/archive.rs +++ b/compiler/rustc_codegen_gcc/src/archive.rs @@ -1,44 +1,17 @@ -use std::fs::File; use std::path::{Path, PathBuf}; -use crate::errors::RanlibFailure; - -use rustc_codegen_ssa::back::archive::{ArchiveBuilder, ArchiveBuilderBuilder}; +use rustc_codegen_ssa::back::archive::{ + get_native_object_symbols, ArArchiveBuilder, ArchiveBuilder, ArchiveBuilderBuilder, +}; use rustc_session::Session; use rustc_session::cstore::DllImport; -struct ArchiveConfig<'a> { - sess: &'a Session, - use_native_ar: bool, - use_gnu_style_archive: bool, -} - -#[derive(Debug)] -enum ArchiveEntry { - FromArchive { - archive_index: usize, - entry_index: usize, - }, - File(PathBuf), -} - -pub struct ArArchiveBuilderBuilder; +pub(crate) struct ArArchiveBuilderBuilder; impl ArchiveBuilderBuilder for ArArchiveBuilderBuilder { fn new_archive_builder<'a>(&self, sess: &'a Session) -> Box<dyn ArchiveBuilder<'a> + 'a> { - let config = ArchiveConfig { - sess, - use_native_ar: false, - // FIXME test for linux and System V derivatives instead - use_gnu_style_archive: sess.target.options.archive_format == "gnu", - }; - - Box::new(ArArchiveBuilder { - config, - src_archives: vec![], - entries: vec![], - }) + Box::new(ArArchiveBuilder::new(sess, get_native_object_symbols)) } fn create_dll_import_lib( @@ -49,144 +22,6 @@ impl ArchiveBuilderBuilder for ArArchiveBuilderBuilder { _tmpdir: &Path, _is_direct_dependency: bool, ) -> PathBuf { - unimplemented!(); - } -} - -pub struct ArArchiveBuilder<'a> { - config: ArchiveConfig<'a>, - src_archives: Vec<(PathBuf, ar::Archive<File>)>, - // Don't use `HashMap` here, as the order is important. `rust.metadata.bin` must always be at - // the end of an archive for linkers to not get confused. - entries: Vec<(String, ArchiveEntry)>, -} - -impl<'a> ArchiveBuilder<'a> for ArArchiveBuilder<'a> { - fn add_file(&mut self, file: &Path) { - self.entries.push(( - file.file_name().unwrap().to_str().unwrap().to_string(), - ArchiveEntry::File(file.to_owned()), - )); - } - - fn add_archive( - &mut self, - archive_path: &Path, - mut skip: Box<dyn FnMut(&str) -> bool + 'static>, - ) -> std::io::Result<()> { - let mut archive = ar::Archive::new(std::fs::File::open(&archive_path)?); - let archive_index = self.src_archives.len(); - - let mut i = 0; - while let Some(entry) = archive.next_entry() { - let entry = entry?; - let file_name = String::from_utf8(entry.header().identifier().to_vec()) - .map_err(|err| std::io::Error::new(std::io::ErrorKind::InvalidData, err))?; - if !skip(&file_name) { - self.entries - .push((file_name, ArchiveEntry::FromArchive { archive_index, entry_index: i })); - } - i += 1; - } - - self.src_archives.push((archive_path.to_owned(), archive)); - Ok(()) - } - - fn build(mut self: Box<Self>, output: &Path) -> bool { - use std::process::Command; - - fn add_file_using_ar(archive: &Path, file: &Path) { - Command::new("ar") - .arg("r") // add or replace file - .arg("-c") // silence created file message - .arg(archive) - .arg(&file) - .status() - .unwrap(); - } - - enum BuilderKind<'a> { - Bsd(ar::Builder<File>), - Gnu(ar::GnuBuilder<File>), - NativeAr(&'a Path), - } - - let mut builder = if self.config.use_native_ar { - BuilderKind::NativeAr(output) - } else if self.config.use_gnu_style_archive { - BuilderKind::Gnu(ar::GnuBuilder::new( - File::create(output).unwrap(), - self.entries - .iter() - .map(|(name, _)| name.as_bytes().to_vec()) - .collect(), - )) - } else { - BuilderKind::Bsd(ar::Builder::new(File::create(output).unwrap())) - }; - - let any_members = !self.entries.is_empty(); - - // Add all files - for (entry_name, entry) in self.entries.into_iter() { - match entry { - ArchiveEntry::FromArchive { - archive_index, - entry_index, - } => { - let (ref src_archive_path, ref mut src_archive) = - self.src_archives[archive_index]; - let entry = src_archive.jump_to_entry(entry_index).unwrap(); - let header = entry.header().clone(); - - match builder { - BuilderKind::Bsd(ref mut builder) => { - builder.append(&header, entry).unwrap() - } - BuilderKind::Gnu(ref mut builder) => { - builder.append(&header, entry).unwrap() - } - BuilderKind::NativeAr(archive_file) => { - Command::new("ar") - .arg("x") - .arg(src_archive_path) - .arg(&entry_name) - .status() - .unwrap(); - add_file_using_ar(archive_file, Path::new(&entry_name)); - std::fs::remove_file(entry_name).unwrap(); - } - } - } - ArchiveEntry::File(file) => - match builder { - BuilderKind::Bsd(ref mut builder) => { - builder - .append_file(entry_name.as_bytes(), &mut File::open(file).expect("file for bsd builder")) - .unwrap() - }, - BuilderKind::Gnu(ref mut builder) => { - builder - .append_file(entry_name.as_bytes(), &mut File::open(&file).expect(&format!("file {:?} for gnu builder", file))) - .unwrap() - }, - BuilderKind::NativeAr(archive_file) => add_file_using_ar(archive_file, &file), - }, - } - } - - // Finalize archive - std::mem::drop(builder); - - // Run ranlib to be able to link the archive - let status = - std::process::Command::new("ranlib").arg(output).status().expect("Couldn't run ranlib"); - - if !status.success() { - self.config.sess.emit_fatal(RanlibFailure::new(status.code())); - } - - any_members + unimplemented!("creating dll imports is not yet supported"); } } diff --git a/compiler/rustc_codegen_gcc/src/errors.rs b/compiler/rustc_codegen_gcc/src/errors.rs index 15ad90f9043..89fed7be131 100644 --- a/compiler/rustc_codegen_gcc/src/errors.rs +++ b/compiler/rustc_codegen_gcc/src/errors.rs @@ -17,18 +17,6 @@ impl IntoDiagnosticArg for ExitCode { } #[derive(Diagnostic)] -#[diag(codegen_gcc_ranlib_failure)] -pub(crate) struct RanlibFailure { - exit_code: ExitCode, -} - -impl RanlibFailure { - pub fn new(exit_code: Option<i32>) -> Self { - RanlibFailure { exit_code: ExitCode(exit_code) } - } -} - -#[derive(Diagnostic)] #[diag(codegen_gcc_invalid_monomorphization_basic_integer, code = "E0511")] pub(crate) struct InvalidMonomorphizationBasicInteger<'a> { #[primary_span] @@ -227,7 +215,7 @@ pub(crate) struct InvalidMonomorphizationUnsupportedOperation<'a> { #[diag(codegen_gcc_linkage_const_or_mut_type)] pub(crate) struct LinkageConstOrMutType { #[primary_span] - pub span: Span + pub span: Span, } #[derive(Diagnostic)] @@ -238,5 +226,5 @@ pub(crate) struct LTONotSupported; #[diag(codegen_gcc_unwinding_inline_asm)] pub(crate) struct UnwindingInlineAsm { #[primary_span] - pub span: Span + pub span: Span, } diff --git a/compiler/rustc_codegen_llvm/Cargo.toml b/compiler/rustc_codegen_llvm/Cargo.toml index 0ad39c24025..93d6234dc88 100644 --- a/compiler/rustc_codegen_llvm/Cargo.toml +++ b/compiler/rustc_codegen_llvm/Cargo.toml @@ -11,7 +11,7 @@ bitflags = "1.0" cstr = "0.2" libc = "0.2" measureme = "10.0.0" -object = { version = "0.29.0", default-features = false, features = ["std", "read_core", "archive", "coff", "elf", "macho", "pe"] } +object = { version = "0.29.0", default-features = false, features = ["std", "read"] } tracing = "0.1" rustc_middle = { path = "../rustc_middle" } rustc-demangle = "0.1.21" diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs index a8b47633519..f3bdacf6085 100644 --- a/compiler/rustc_codegen_llvm/src/attributes.rs +++ b/compiler/rustc_codegen_llvm/src/attributes.rs @@ -258,13 +258,12 @@ pub fn from_fn_attrs<'ll, 'tcx>( OptimizeAttr::Speed => {} } - let inline = if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { - InlineAttr::Never - } else if codegen_fn_attrs.inline == InlineAttr::None && instance.def.requires_inline(cx.tcx) { - InlineAttr::Hint - } else { - codegen_fn_attrs.inline - }; + let inline = + if codegen_fn_attrs.inline == InlineAttr::None && instance.def.requires_inline(cx.tcx) { + InlineAttr::Hint + } else { + codegen_fn_attrs.inline + }; to_add.extend(inline_attr(cx, inline)); // The `uwtable` attribute according to LLVM is: diff --git a/compiler/rustc_codegen_llvm/src/back/archive.rs b/compiler/rustc_codegen_llvm/src/back/archive.rs index 5c68abeb08b..0aee1a1439b 100644 --- a/compiler/rustc_codegen_llvm/src/back/archive.rs +++ b/compiler/rustc_codegen_llvm/src/back/archive.rs @@ -1,31 +1,30 @@ //! A helper class for dealing with static archives use std::env; -use std::ffi::{CStr, CString, OsString}; -use std::fs; -use std::io::{self, Write}; +use std::ffi::{c_char, c_void, CStr, CString, OsString}; +use std::io; use std::mem; use std::path::{Path, PathBuf}; use std::ptr; use std::str; -use object::read::macho::FatArch; - use crate::common; use crate::errors::{ - ArchiveBuildFailure, DlltoolFailImportLibrary, ErrorCallingDllTool, ErrorCreatingImportLibrary, - ErrorWritingDEFFile, UnknownArchiveKind, + DlltoolFailImportLibrary, ErrorCallingDllTool, ErrorCreatingImportLibrary, ErrorWritingDEFFile, }; use crate::llvm::archive_ro::{ArchiveRO, Child}; use crate::llvm::{self, ArchiveKind, LLVMMachineType, LLVMRustCOFFShortExport}; -use rustc_codegen_ssa::back::archive::{ArchiveBuilder, ArchiveBuilderBuilder}; -use rustc_data_structures::memmap::Mmap; +use rustc_codegen_ssa::back::archive::{ + get_native_object_symbols, try_extract_macho_fat_archive, ArArchiveBuilder, + ArchiveBuildFailure, ArchiveBuilder, ArchiveBuilderBuilder, UnknownArchiveKind, +}; + use rustc_session::cstore::DllImport; use rustc_session::Session; /// Helper for adding many files to an archive. #[must_use = "must call build() to finish building the archive"] -pub struct LlvmArchiveBuilder<'a> { +pub(crate) struct LlvmArchiveBuilder<'a> { sess: &'a Session, additions: Vec<Addition>, } @@ -61,57 +60,6 @@ fn llvm_machine_type(cpu: &str) -> LLVMMachineType { } } -fn try_filter_fat_archs( - archs: object::read::Result<&[impl FatArch]>, - target_arch: object::Architecture, - archive_path: &Path, - archive_map_data: &[u8], -) -> io::Result<Option<PathBuf>> { - let archs = archs.map_err(|e| io::Error::new(io::ErrorKind::Other, e))?; - - let desired = match archs.iter().filter(|a| a.architecture() == target_arch).next() { - Some(a) => a, - None => return Ok(None), - }; - - let (mut new_f, extracted_path) = tempfile::Builder::new() - .suffix(archive_path.file_name().unwrap()) - .tempfile()? - .keep() - .unwrap(); - - new_f.write_all( - desired.data(archive_map_data).map_err(|e| io::Error::new(io::ErrorKind::Other, e))?, - )?; - - Ok(Some(extracted_path)) -} - -fn try_extract_macho_fat_archive( - sess: &Session, - archive_path: &Path, -) -> io::Result<Option<PathBuf>> { - let archive_map = unsafe { Mmap::map(fs::File::open(&archive_path)?)? }; - let target_arch = match sess.target.arch.as_ref() { - "aarch64" => object::Architecture::Aarch64, - "x86_64" => object::Architecture::X86_64, - _ => return Ok(None), - }; - - match object::macho::FatHeader::parse(&*archive_map) { - Ok(h) if h.magic.get(object::endian::BigEndian) == object::macho::FAT_MAGIC => { - let archs = object::macho::FatHeader::parse_arch32(&*archive_map); - try_filter_fat_archs(archs, target_arch, archive_path, &*archive_map) - } - Ok(h) if h.magic.get(object::endian::BigEndian) == object::macho::FAT_MAGIC_64 => { - let archs = object::macho::FatHeader::parse_arch64(&*archive_map); - try_filter_fat_archs(archs, target_arch, archive_path, &*archive_map) - } - // Not a FatHeader at all, just return None. - _ => Ok(None), - } -} - impl<'a> ArchiveBuilder<'a> for LlvmArchiveBuilder<'a> { fn add_archive( &mut self, @@ -160,7 +108,11 @@ pub struct LlvmArchiveBuilderBuilder; impl ArchiveBuilderBuilder for LlvmArchiveBuilderBuilder { fn new_archive_builder<'a>(&self, sess: &'a Session) -> Box<dyn ArchiveBuilder<'a> + 'a> { - Box::new(LlvmArchiveBuilder { sess, additions: Vec::new() }) + if sess.target.arch == "wasm32" || sess.target.arch == "wasm64" { + Box::new(LlvmArchiveBuilder { sess, additions: Vec::new() }) + } else { + Box::new(ArArchiveBuilder::new(sess, get_llvm_object_symbols)) + } } fn create_dll_import_lib( @@ -309,6 +261,61 @@ impl ArchiveBuilderBuilder for LlvmArchiveBuilderBuilder { } } +// The object crate doesn't know how to get symbols for LLVM bitcode and COFF bigobj files. +// As such we need to use LLVM for them. +#[deny(unsafe_op_in_unsafe_fn)] +fn get_llvm_object_symbols( + buf: &[u8], + f: &mut dyn FnMut(&[u8]) -> io::Result<()>, +) -> io::Result<bool> { + let is_bitcode = unsafe { llvm::LLVMRustIsBitcode(buf.as_ptr(), buf.len()) }; + + // COFF bigobj file, msvc LTO file or import library. See + // https://github.com/llvm/llvm-project/blob/453f27bc9/llvm/lib/BinaryFormat/Magic.cpp#L38-L51 + let is_unsupported_windows_obj_file = buf.get(0..4) == Some(b"\0\0\xFF\xFF"); + + if is_bitcode || is_unsupported_windows_obj_file { + let mut state = Box::new(f); + + let err = unsafe { + llvm::LLVMRustGetSymbols( + buf.as_ptr(), + buf.len(), + &mut *state as *mut &mut _ as *mut c_void, + callback, + error_callback, + ) + }; + + if err.is_null() { + return Ok(true); + } else { + return Err(unsafe { *Box::from_raw(err as *mut io::Error) }); + } + + unsafe extern "C" fn callback( + state: *mut c_void, + symbol_name: *const c_char, + ) -> *mut c_void { + let f = unsafe { &mut *(state as *mut &mut dyn FnMut(&[u8]) -> io::Result<()>) }; + match f(unsafe { CStr::from_ptr(symbol_name) }.to_bytes()) { + Ok(()) => std::ptr::null_mut(), + Err(err) => Box::into_raw(Box::new(err)) as *mut c_void, + } + } + + unsafe extern "C" fn error_callback(error: *const c_char) -> *mut c_void { + let error = unsafe { CStr::from_ptr(error) }; + Box::into_raw(Box::new(io::Error::new( + io::ErrorKind::Other, + format!("LLVM error: {}", error.to_string_lossy()), + ))) as *mut c_void + } + } else { + get_native_object_symbols(buf, f) + } +} + impl<'a> LlvmArchiveBuilder<'a> { fn build_with_llvm(&mut self, output: &Path) -> io::Result<bool> { let kind = &*self.sess.target.archive_format; diff --git a/compiler/rustc_codegen_llvm/src/errors.rs b/compiler/rustc_codegen_llvm/src/errors.rs index 0fafc214f2f..fddfbb23c67 100644 --- a/compiler/rustc_codegen_llvm/src/errors.rs +++ b/compiler/rustc_codegen_llvm/src/errors.rs @@ -73,12 +73,6 @@ pub(crate) struct LinkageConstOrMutType { pub(crate) struct SanitizerMemtagRequiresMte; #[derive(Diagnostic)] -#[diag(codegen_llvm_archive_build_failure)] -pub(crate) struct ArchiveBuildFailure { - pub error: std::io::Error, -} - -#[derive(Diagnostic)] #[diag(codegen_llvm_error_writing_def_file)] pub(crate) struct ErrorWritingDEFFile { pub error: std::io::Error, @@ -98,12 +92,6 @@ pub(crate) struct DlltoolFailImportLibrary<'a> { } #[derive(Diagnostic)] -#[diag(codegen_llvm_unknown_archive_kind)] -pub(crate) struct UnknownArchiveKind<'a> { - pub kind: &'a str, -} - -#[derive(Diagnostic)] #[diag(codegen_llvm_dynamic_linking_with_lto)] #[note] pub(crate) struct DynamicLinkingWithLTO; diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index c14e1656291..8a9392255b8 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -983,6 +983,9 @@ pub type SelfProfileBeforePassCallback = unsafe extern "C" fn(*mut c_void, *const c_char, *const c_char); pub type SelfProfileAfterPassCallback = unsafe extern "C" fn(*mut c_void); +pub type GetSymbolsCallback = unsafe extern "C" fn(*mut c_void, *const c_char) -> *mut c_void; +pub type GetSymbolsErrorCallback = unsafe extern "C" fn(*const c_char) -> *mut c_void; + extern "C" { pub fn LLVMRustInstallFatalErrorHandler(); pub fn LLVMRustDisableSystemDialogsOnCrash(); @@ -2474,4 +2477,14 @@ extern "C" { pub fn LLVMRustGetMangledName(V: &Value, out: &RustString); pub fn LLVMRustGetElementTypeArgIndex(CallSite: &Value) -> i32; + + pub fn LLVMRustIsBitcode(ptr: *const u8, len: usize) -> bool; + + pub fn LLVMRustGetSymbols( + buf_ptr: *const u8, + buf_len: usize, + state: *mut c_void, + callback: GetSymbolsCallback, + error_callback: GetSymbolsErrorCallback, + ) -> *mut c_void; } diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs index c9f5dd0f2c6..2fa602520dc 100644 --- a/compiler/rustc_codegen_llvm/src/llvm_util.rs +++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs @@ -494,6 +494,11 @@ pub(crate) fn global_llvm_features(sess: &Session, diagnostics: bool) -> Vec<Str .flatten(); features.extend(feats); + // FIXME: Move v8a to target definition list when earliest supported LLVM is 14. + if get_version() >= (14, 0, 0) && sess.target.arch == "aarch64" { + features.push("+v8a".into()); + } + if diagnostics && let Some(f) = check_tied_features(sess, &featsmap) { sess.emit_err(TargetFeatureDisableOrEnable { features: f, diff --git a/compiler/rustc_codegen_ssa/Cargo.toml b/compiler/rustc_codegen_ssa/Cargo.toml index d868e3d56ba..345174fb595 100644 --- a/compiler/rustc_codegen_ssa/Cargo.toml +++ b/compiler/rustc_codegen_ssa/Cargo.toml @@ -7,6 +7,7 @@ edition = "2021" test = false [dependencies] +ar_archive_writer = "0.1.1" bitflags = "1.2.1" cc = "1.0.69" itertools = "0.10.1" diff --git a/compiler/rustc_codegen_ssa/src/back/archive.rs b/compiler/rustc_codegen_ssa/src/back/archive.rs index 2b1b06d1644..58558fb8c4b 100644 --- a/compiler/rustc_codegen_ssa/src/back/archive.rs +++ b/compiler/rustc_codegen_ssa/src/back/archive.rs @@ -6,14 +6,19 @@ use rustc_span::symbol::Symbol; use super::metadata::search_for_section; +pub use ar_archive_writer::get_native_object_symbols; +use ar_archive_writer::{write_archive_to_stream, ArchiveKind, NewArchiveMember}; use object::read::archive::ArchiveFile; +use object::read::macho::FatArch; +use tempfile::Builder as TempFileBuilder; use std::error::Error; use std::fs::File; -use std::io; +use std::io::{self, Write}; use std::path::{Path, PathBuf}; -use crate::errors::ExtractBundledLibsError; +// Re-exporting for rustc_codegen_llvm::back::archive +pub use crate::errors::{ArchiveBuildFailure, ExtractBundledLibsError, UnknownArchiveKind}; pub trait ArchiveBuilderBuilder { fn new_archive_builder<'a>(&self, sess: &'a Session) -> Box<dyn ArchiveBuilder<'a> + 'a>; @@ -80,3 +85,225 @@ pub trait ArchiveBuilder<'a> { fn build(self: Box<Self>, output: &Path) -> bool; } + +#[must_use = "must call build() to finish building the archive"] +pub struct ArArchiveBuilder<'a> { + sess: &'a Session, + get_object_symbols: + fn(buf: &[u8], f: &mut dyn FnMut(&[u8]) -> io::Result<()>) -> io::Result<bool>, + + src_archives: Vec<(PathBuf, Mmap)>, + // Don't use an `HashMap` here, as the order is important. `lib.rmeta` needs + // to be at the end of an archive in some cases for linkers to not get confused. + entries: Vec<(Vec<u8>, ArchiveEntry)>, +} + +#[derive(Debug)] +enum ArchiveEntry { + FromArchive { archive_index: usize, file_range: (u64, u64) }, + File(PathBuf), +} + +impl<'a> ArArchiveBuilder<'a> { + pub fn new( + sess: &'a Session, + get_object_symbols: fn( + buf: &[u8], + f: &mut dyn FnMut(&[u8]) -> io::Result<()>, + ) -> io::Result<bool>, + ) -> ArArchiveBuilder<'a> { + ArArchiveBuilder { sess, get_object_symbols, src_archives: vec![], entries: vec![] } + } +} + +fn try_filter_fat_archs( + archs: object::read::Result<&[impl FatArch]>, + target_arch: object::Architecture, + archive_path: &Path, + archive_map_data: &[u8], +) -> io::Result<Option<PathBuf>> { + let archs = archs.map_err(|e| io::Error::new(io::ErrorKind::Other, e))?; + + let desired = match archs.iter().filter(|a| a.architecture() == target_arch).next() { + Some(a) => a, + None => return Ok(None), + }; + + let (mut new_f, extracted_path) = tempfile::Builder::new() + .suffix(archive_path.file_name().unwrap()) + .tempfile()? + .keep() + .unwrap(); + + new_f.write_all( + desired.data(archive_map_data).map_err(|e| io::Error::new(io::ErrorKind::Other, e))?, + )?; + + Ok(Some(extracted_path)) +} + +pub fn try_extract_macho_fat_archive( + sess: &Session, + archive_path: &Path, +) -> io::Result<Option<PathBuf>> { + let archive_map = unsafe { Mmap::map(File::open(&archive_path)?)? }; + let target_arch = match sess.target.arch.as_ref() { + "aarch64" => object::Architecture::Aarch64, + "x86_64" => object::Architecture::X86_64, + _ => return Ok(None), + }; + + match object::macho::FatHeader::parse(&*archive_map) { + Ok(h) if h.magic.get(object::endian::BigEndian) == object::macho::FAT_MAGIC => { + let archs = object::macho::FatHeader::parse_arch32(&*archive_map); + try_filter_fat_archs(archs, target_arch, archive_path, &*archive_map) + } + Ok(h) if h.magic.get(object::endian::BigEndian) == object::macho::FAT_MAGIC_64 => { + let archs = object::macho::FatHeader::parse_arch64(&*archive_map); + try_filter_fat_archs(archs, target_arch, archive_path, &*archive_map) + } + // Not a FatHeader at all, just return None. + _ => Ok(None), + } +} + +impl<'a> ArchiveBuilder<'a> for ArArchiveBuilder<'a> { + fn add_archive( + &mut self, + archive_path: &Path, + mut skip: Box<dyn FnMut(&str) -> bool + 'static>, + ) -> io::Result<()> { + let mut archive_path = archive_path.to_path_buf(); + if self.sess.target.llvm_target.contains("-apple-macosx") { + if let Some(new_archive_path) = + try_extract_macho_fat_archive(&self.sess, &archive_path)? + { + archive_path = new_archive_path + } + } + + if self.src_archives.iter().any(|archive| archive.0 == archive_path) { + return Ok(()); + } + + let archive_map = unsafe { Mmap::map(File::open(&archive_path)?)? }; + let archive = ArchiveFile::parse(&*archive_map) + .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?; + let archive_index = self.src_archives.len(); + + for entry in archive.members() { + let entry = entry.map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?; + let file_name = String::from_utf8(entry.name().to_vec()) + .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?; + if !skip(&file_name) { + self.entries.push(( + file_name.into_bytes(), + ArchiveEntry::FromArchive { archive_index, file_range: entry.file_range() }, + )); + } + } + + self.src_archives.push((archive_path.to_owned(), archive_map)); + Ok(()) + } + + /// Adds an arbitrary file to this archive + fn add_file(&mut self, file: &Path) { + self.entries.push(( + file.file_name().unwrap().to_str().unwrap().to_string().into_bytes(), + ArchiveEntry::File(file.to_owned()), + )); + } + + /// Combine the provided files, rlibs, and native libraries into a single + /// `Archive`. + fn build(self: Box<Self>, output: &Path) -> bool { + let sess = self.sess; + match self.build_inner(output) { + Ok(any_members) => any_members, + Err(e) => sess.emit_fatal(ArchiveBuildFailure { error: e }), + } + } +} + +impl<'a> ArArchiveBuilder<'a> { + fn build_inner(self, output: &Path) -> io::Result<bool> { + let archive_kind = match &*self.sess.target.archive_format { + "gnu" => ArchiveKind::Gnu, + "bsd" => ArchiveKind::Bsd, + "darwin" => ArchiveKind::Darwin, + "coff" => ArchiveKind::Coff, + kind => { + self.sess.emit_fatal(UnknownArchiveKind { kind }); + } + }; + + let mut entries = Vec::new(); + + for (entry_name, entry) in self.entries { + let data = + match entry { + ArchiveEntry::FromArchive { archive_index, file_range } => { + let src_archive = &self.src_archives[archive_index]; + + let data = &src_archive.1 + [file_range.0 as usize..file_range.0 as usize + file_range.1 as usize]; + + Box::new(data) as Box<dyn AsRef<[u8]>> + } + ArchiveEntry::File(file) => unsafe { + Box::new( + Mmap::map(File::open(file).map_err(|err| { + io_error_context("failed to open object file", err) + })?) + .map_err(|err| io_error_context("failed to map object file", err))?, + ) as Box<dyn AsRef<[u8]>> + }, + }; + + entries.push(NewArchiveMember { + buf: data, + get_symbols: self.get_object_symbols, + member_name: String::from_utf8(entry_name).unwrap(), + mtime: 0, + uid: 0, + gid: 0, + perms: 0o644, + }) + } + + // Write to a temporary file first before atomically renaming to the final name. + // This prevents programs (including rustc) from attempting to read a partial archive. + // It also enables writing an archive with the same filename as a dependency on Windows as + // required by a test. + let mut archive_tmpfile = TempFileBuilder::new() + .suffix(".temp-archive") + .tempfile_in(output.parent().unwrap_or_else(|| Path::new(""))) + .map_err(|err| io_error_context("couldn't create a temp file", err))?; + + write_archive_to_stream( + archive_tmpfile.as_file_mut(), + &entries, + true, + archive_kind, + true, + false, + )?; + + let any_entries = !entries.is_empty(); + drop(entries); + // Drop src_archives to unmap all input archives, which is necessary if we want to write the + // output archive to the same location as an input archive on Windows. + drop(self.src_archives); + + archive_tmpfile + .persist(output) + .map_err(|err| io_error_context("failed to rename archive file", err.error))?; + + Ok(any_entries) + } +} + +fn io_error_context(context: &str, err: io::Error) -> io::Error { + io::Error::new(io::ErrorKind::Other, format!("{context}: {err}")) +} diff --git a/compiler/rustc_codegen_ssa/src/errors.rs b/compiler/rustc_codegen_ssa/src/errors.rs index ade50af0aee..e3b6fbf1bc7 100644 --- a/compiler/rustc_codegen_ssa/src/errors.rs +++ b/compiler/rustc_codegen_ssa/src/errors.rs @@ -534,3 +534,17 @@ pub struct ReadFileError { #[derive(Diagnostic)] #[diag(codegen_ssa_unsupported_link_self_contained)] pub struct UnsupportedLinkSelfContained; + +#[derive(Diagnostic)] +#[diag(codegen_ssa_archive_build_failure)] +// Public for rustc_codegen_llvm::back::archive +pub struct ArchiveBuildFailure { + pub error: std::io::Error, +} + +#[derive(Diagnostic)] +#[diag(codegen_ssa_unknown_archive_kind)] +// Public for rustc_codegen_llvm::back::archive +pub struct UnknownArchiveKind<'a> { + pub kind: &'a str, +} diff --git a/compiler/rustc_codegen_ssa/src/mir/place.rs b/compiler/rustc_codegen_ssa/src/mir/place.rs index 90855538589..fbe30154a7c 100644 --- a/compiler/rustc_codegen_ssa/src/mir/place.rs +++ b/compiler/rustc_codegen_ssa/src/mir/place.rs @@ -309,14 +309,14 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { // In the algorithm above, we can change // cast(relative_tag) + niche_variants.start() // into - // cast(tag) + (niche_variants.start() - niche_start) + // cast(tag + (niche_variants.start() - niche_start)) // if either the casted type is no larger than the original // type, or if the niche values are contiguous (in either the // signed or unsigned sense). - let can_incr_after_cast = cast_smaller || niches_ule || niches_sle; + let can_incr = cast_smaller || niches_ule || niches_sle; let data_for_boundary_niche = || -> Option<(IntPredicate, u128)> { - if !can_incr_after_cast { + if !can_incr { None } else if niche_start == low_unsigned { Some((IntPredicate::IntULE, niche_end)) @@ -353,24 +353,33 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { // The algorithm is now this: // is_niche = tag <= niche_end // discr = if is_niche { - // cast(tag) + (niche_variants.start() - niche_start) + // cast(tag + (niche_variants.start() - niche_start)) // } else { // untagged_variant // } // (the first line may instead be tag >= niche_start, // and may be a signed or unsigned comparison) + // The arithmetic must be done before the cast, so we can + // have the correct wrapping behavior. See issue #104519 for + // the consequences of getting this wrong. let is_niche = bx.icmp(predicate, tag, bx.cx().const_uint_big(tag_llty, constant)); + let delta = (niche_variants.start().as_u32() as u128).wrapping_sub(niche_start); + let incr_tag = if delta == 0 { + tag + } else { + bx.add(tag, bx.cx().const_uint_big(tag_llty, delta)) + }; + let cast_tag = if cast_smaller { - bx.intcast(tag, cast_to, false) + bx.intcast(incr_tag, cast_to, false) } else if niches_ule { - bx.zext(tag, cast_to) + bx.zext(incr_tag, cast_to) } else { - bx.sext(tag, cast_to) + bx.sext(incr_tag, cast_to) }; - let delta = (niche_variants.start().as_u32() as u128).wrapping_sub(niche_start); - (is_niche, cast_tag, delta) + (is_niche, cast_tag, 0) } else { // The special cases don't apply, so we'll have to go with // the general algorithm. diff --git a/compiler/rustc_const_eval/src/transform/promote_consts.rs b/compiler/rustc_const_eval/src/transform/promote_consts.rs index f48bcd90809..6777fae74f1 100644 --- a/compiler/rustc_const_eval/src/transform/promote_consts.rs +++ b/compiler/rustc_const_eval/src/transform/promote_consts.rs @@ -318,14 +318,14 @@ impl<'tcx> Validator<'_, 'tcx> { match elem { ProjectionElem::Deref => { let mut promotable = false; + // When a static is used by-value, that gets desugared to `*STATIC_ADDR`, + // and we need to be able to promote this. So check if this deref matches + // that specific pattern. + // We need to make sure this is a `Deref` of a local with no further projections. // Discussion can be found at // https://github.com/rust-lang/rust/pull/74945#discussion_r463063247 if let Some(local) = place_base.as_local() { - // This is a special treatment for cases like *&STATIC where STATIC is a - // global static variable. - // This pattern is generated only when global static variables are directly - // accessed and is qualified for promotion safely. if let TempState::Defined { location, .. } = self.temps[local] { let def_stmt = self.body[location.block] .statements diff --git a/compiler/rustc_data_structures/src/intern.rs b/compiler/rustc_data_structures/src/intern.rs index 11cbff8ea6a..76a1288e6d3 100644 --- a/compiler/rustc_data_structures/src/intern.rs +++ b/compiler/rustc_data_structures/src/intern.rs @@ -72,7 +72,7 @@ impl<'a, T: PartialOrd> PartialOrd for Interned<'a, T> { if ptr::eq(self.0, other.0) { Some(Ordering::Equal) } else { - let res = self.0.partial_cmp(&other.0); + let res = self.0.partial_cmp(other.0); debug_assert_ne!(res, Some(Ordering::Equal)); res } @@ -86,7 +86,7 @@ impl<'a, T: Ord> Ord for Interned<'a, T> { if ptr::eq(self.0, other.0) { Ordering::Equal } else { - let res = self.0.cmp(&other.0); + let res = self.0.cmp(other.0); debug_assert_ne!(res, Ordering::Equal); res } diff --git a/compiler/rustc_data_structures/src/memmap.rs b/compiler/rustc_data_structures/src/memmap.rs index 917416df6b8..3d44e17f31d 100644 --- a/compiler/rustc_data_structures/src/memmap.rs +++ b/compiler/rustc_data_structures/src/memmap.rs @@ -36,6 +36,12 @@ impl Deref for Mmap { #[inline] fn deref(&self) -> &[u8] { + &self.0 + } +} + +impl AsRef<[u8]> for Mmap { + fn as_ref(&self) -> &[u8] { &*self.0 } } @@ -96,13 +102,13 @@ impl Deref for MmapMut { #[inline] fn deref(&self) -> &[u8] { - &*self.0 + &self.0 } } impl DerefMut for MmapMut { #[inline] fn deref_mut(&mut self) -> &mut [u8] { - &mut *self.0 + &mut self.0 } } diff --git a/compiler/rustc_data_structures/src/owning_ref/mod.rs b/compiler/rustc_data_structures/src/owning_ref/mod.rs index ed5e566184f..980a540ccba 100644 --- a/compiler/rustc_data_structures/src/owning_ref/mod.rs +++ b/compiler/rustc_data_structures/src/owning_ref/mod.rs @@ -899,25 +899,25 @@ unsafe impl<O, T: ?Sized> StableAddress for OwningRef<O, T> {} impl<O, T: ?Sized> AsRef<T> for OwningRef<O, T> { fn as_ref(&self) -> &T { - &*self + self } } impl<O, T: ?Sized> AsRef<T> for OwningRefMut<O, T> { fn as_ref(&self) -> &T { - &*self + self } } impl<O, T: ?Sized> AsMut<T> for OwningRefMut<O, T> { fn as_mut(&mut self) -> &mut T { - &mut *self + self } } impl<O, T: ?Sized> Borrow<T> for OwningRef<O, T> { fn borrow(&self) -> &T { - &*self + self } } @@ -1021,7 +1021,7 @@ where T: PartialEq, { fn eq(&self, other: &Self) -> bool { - (&*self as &T).eq(&*other as &T) + self.deref().eq(other.deref()) } } @@ -1032,7 +1032,7 @@ where T: PartialOrd, { fn partial_cmp(&self, other: &Self) -> Option<Ordering> { - (&*self as &T).partial_cmp(&*other as &T) + self.deref().partial_cmp(other.deref()) } } @@ -1041,7 +1041,7 @@ where T: Ord, { fn cmp(&self, other: &Self) -> Ordering { - (&*self as &T).cmp(&*other as &T) + self.deref().cmp(other.deref()) } } @@ -1050,7 +1050,7 @@ where T: Hash, { fn hash<H: Hasher>(&self, state: &mut H) { - (&*self as &T).hash(state); + self.deref().hash(state); } } @@ -1059,7 +1059,7 @@ where T: PartialEq, { fn eq(&self, other: &Self) -> bool { - (&*self as &T).eq(&*other as &T) + self.deref().eq(other.deref()) } } @@ -1070,7 +1070,7 @@ where T: PartialOrd, { fn partial_cmp(&self, other: &Self) -> Option<Ordering> { - (&*self as &T).partial_cmp(&*other as &T) + self.deref().partial_cmp(other.deref()) } } @@ -1079,7 +1079,7 @@ where T: Ord, { fn cmp(&self, other: &Self) -> Ordering { - (&*self as &T).cmp(&*other as &T) + self.deref().cmp(other.deref()) } } @@ -1088,7 +1088,7 @@ where T: Hash, { fn hash<H: Hasher>(&self, state: &mut H) { - (&*self as &T).hash(state); + self.deref().hash(state); } } diff --git a/compiler/rustc_data_structures/src/profiling.rs b/compiler/rustc_data_structures/src/profiling.rs index ba1960805d8..aa7a01eed15 100644 --- a/compiler/rustc_data_structures/src/profiling.rs +++ b/compiler/rustc_data_structures/src/profiling.rs @@ -192,7 +192,7 @@ impl SelfProfilerRef { F: for<'a> FnOnce(&'a SelfProfiler) -> TimingGuard<'a>, { let profiler = profiler_ref.profiler.as_ref().unwrap(); - f(&**profiler) + f(profiler) } if self.event_filter_mask.contains(event_filter) { @@ -466,7 +466,7 @@ impl SelfProfilerRef { pub fn with_profiler(&self, f: impl FnOnce(&SelfProfiler)) { if let Some(profiler) = &self.profiler { - f(&profiler) + f(profiler) } } @@ -733,7 +733,7 @@ impl Drop for VerboseTimingGuard<'_> { if let Some((start_time, start_rss, ref message)) = self.start_and_message { let end_rss = get_resident_set_size(); let dur = start_time.elapsed(); - print_time_passes_entry(&message, dur, start_rss, end_rss); + print_time_passes_entry(message, dur, start_rss, end_rss); } } } diff --git a/compiler/rustc_data_structures/src/stable_hasher.rs b/compiler/rustc_data_structures/src/stable_hasher.rs index ce859173418..cd392a7b678 100644 --- a/compiler/rustc_data_structures/src/stable_hasher.rs +++ b/compiler/rustc_data_structures/src/stable_hasher.rs @@ -366,7 +366,7 @@ impl<CTX> HashStable<CTX> for [u8] { impl<T: HashStable<CTX>, CTX> HashStable<CTX> for Vec<T> { #[inline] fn hash_stable(&self, ctx: &mut CTX, hasher: &mut StableHasher) { - (&self[..]).hash_stable(ctx, hasher); + self[..].hash_stable(ctx, hasher); } } @@ -399,13 +399,13 @@ where } } -impl<A, CTX> HashStable<CTX> for SmallVec<[A; 1]> +impl<A, const N: usize, CTX> HashStable<CTX> for SmallVec<[A; N]> where A: HashStable<CTX>, { #[inline] fn hash_stable(&self, ctx: &mut CTX, hasher: &mut StableHasher) { - (&self[..]).hash_stable(ctx, hasher); + self[..].hash_stable(ctx, hasher); } } @@ -440,7 +440,7 @@ impl<CTX> HashStable<CTX> for str { impl<CTX> HashStable<CTX> for String { #[inline] fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { - (&self[..]).hash_stable(hcx, hasher); + self[..].hash_stable(hcx, hasher); } } diff --git a/compiler/rustc_data_structures/src/sync.rs b/compiler/rustc_data_structures/src/sync.rs index c550f246e09..e4f47b22ac3 100644 --- a/compiler/rustc_data_structures/src/sync.rs +++ b/compiler/rustc_data_structures/src/sync.rs @@ -201,7 +201,7 @@ cfg_if! { #[inline(always)] fn deref(&self) -> &T { - &*self.0 + &self.0 } } diff --git a/compiler/rustc_driver/src/lib.rs b/compiler/rustc_driver/src/lib.rs index 380fbd732d5..22f87514dd8 100644 --- a/compiler/rustc_driver/src/lib.rs +++ b/compiler/rustc_driver/src/lib.rs @@ -245,10 +245,8 @@ fn run_compiler( interface::run_compiler(config, |compiler| { let sopts = &compiler.session().opts; if sopts.describe_lints { - let mut lint_store = rustc_lint::new_lint_store( - sopts.unstable_opts.no_interleave_lints, - compiler.session().enable_internal_lints(), - ); + let mut lint_store = + rustc_lint::new_lint_store(compiler.session().enable_internal_lints()); let registered_lints = if let Some(register_lints) = compiler.register_lints() { register_lints(compiler.session(), &mut lint_store); diff --git a/compiler/rustc_error_messages/locales/en-US/codegen_gcc.ftl b/compiler/rustc_error_messages/locales/en-US/codegen_gcc.ftl index 178e1a67cce..a1b7afeb709 100644 --- a/compiler/rustc_error_messages/locales/en-US/codegen_gcc.ftl +++ b/compiler/rustc_error_messages/locales/en-US/codegen_gcc.ftl @@ -1,6 +1,3 @@ -codegen_gcc_ranlib_failure = - Ranlib exited with code {$exit_code} - codegen_gcc_linkage_const_or_mut_type = must have type `*const T` or `*mut T` due to `#[linkage]` attribute diff --git a/compiler/rustc_error_messages/locales/en-US/codegen_llvm.ftl b/compiler/rustc_error_messages/locales/en-US/codegen_llvm.ftl index 68a205df6c7..e273476b60b 100644 --- a/compiler/rustc_error_messages/locales/en-US/codegen_llvm.ftl +++ b/compiler/rustc_error_messages/locales/en-US/codegen_llvm.ftl @@ -29,9 +29,6 @@ codegen_llvm_linkage_const_or_mut_type = codegen_llvm_sanitizer_memtag_requires_mte = `-Zsanitizer=memtag` requires `-Ctarget-feature=+mte` -codegen_llvm_archive_build_failure = - failed to build archive: {$error} - codegen_llvm_error_writing_def_file = Error writing .DEF file: {$error} @@ -41,9 +38,6 @@ codegen_llvm_error_calling_dlltool = codegen_llvm_dlltool_fail_import_library = Dlltool could not create import library: {$stdout}\n{$stderr} -codegen_llvm_unknown_archive_kind = - Don't know how to build archive of type: {$kind} - codegen_llvm_target_feature_disable_or_enable = the target features {$features} must all be either enabled or disabled together diff --git a/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl b/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl index 70ce559526c..4d1f9c1c901 100644 --- a/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl +++ b/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl @@ -186,3 +186,9 @@ codegen_ssa_apple_sdk_error_sdk_path = failed to get {$sdk_name} SDK path: {erro codegen_ssa_read_file = failed to read file: {message} codegen_ssa_unsupported_link_self_contained = option `-C link-self-contained` is not supported on this target + +codegen_ssa_archive_build_failure = + failed to build archive: {$error} + +codegen_ssa_unknown_archive_kind = + Don't know how to build archive of type: {$kind} diff --git a/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs b/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs index c450c276366..d8879bf70ed 100644 --- a/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs +++ b/compiler/rustc_errors/src/annotate_snippet_emitter_writer.rs @@ -39,7 +39,7 @@ impl Translate for AnnotateSnippetEmitterWriter { } fn fallback_fluent_bundle(&self) -> &FluentBundle { - &**self.fallback_bundle + &self.fallback_bundle } } @@ -49,7 +49,7 @@ impl Emitter for AnnotateSnippetEmitterWriter { let fluent_args = to_fluent_args(diag.args()); let mut children = diag.children.clone(); - let (mut primary_span, suggestions) = self.primary_span_formatted(&diag, &fluent_args); + let (mut primary_span, suggestions) = self.primary_span_formatted(diag, &fluent_args); self.fix_multispans_in_extern_macros_and_render_macro_backtrace( &mut primary_span, @@ -65,7 +65,7 @@ impl Emitter for AnnotateSnippetEmitterWriter { &diag.code, &primary_span, &children, - &suggestions, + suggestions, ); } diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs index 7d5e4723a6d..06bb5edc090 100644 --- a/compiler/rustc_errors/src/diagnostic.rs +++ b/compiler/rustc_errors/src/diagnostic.rs @@ -292,7 +292,7 @@ impl Diagnostic { let lint_index = expectation_id.get_lint_index(); expectation_id.set_lint_index(None); let mut stable_id = unstable_to_stable - .get(&expectation_id) + .get(expectation_id) .expect("each unstable `LintExpectationId` must have a matching stable id") .normalize(); diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs index 1fabe15ff83..db595df8ec1 100644 --- a/compiler/rustc_errors/src/emitter.rs +++ b/compiler/rustc_errors/src/emitter.rs @@ -283,7 +283,7 @@ pub trait Emitter: Translate { if self .source_map() .map(|sm| is_case_difference( - &**sm, + sm, substitution, sugg.substitutions[0].parts[0].span, )) @@ -525,7 +525,7 @@ impl Translate for EmitterWriter { } fn fallback_fluent_bundle(&self) -> &FluentBundle { - &**self.fallback_bundle + &self.fallback_bundle } } @@ -538,7 +538,7 @@ impl Emitter for EmitterWriter { let fluent_args = to_fluent_args(diag.args()); let mut children = diag.children.clone(); - let (mut primary_span, suggestions) = self.primary_span_formatted(&diag, &fluent_args); + let (mut primary_span, suggestions) = self.primary_span_formatted(diag, &fluent_args); debug!("emit_diagnostic: suggestions={:?}", suggestions); self.fix_multispans_in_extern_macros_and_render_macro_backtrace( @@ -555,7 +555,7 @@ impl Emitter for EmitterWriter { &diag.code, &primary_span, &children, - &suggestions, + suggestions, self.track_diagnostics.then_some(&diag.emitted_at), ); } @@ -801,7 +801,7 @@ impl EmitterWriter { } let source_string = match file.get_line(line.line_index - 1) { - Some(s) => normalize_whitespace(&*s), + Some(s) => normalize_whitespace(&s), None => return Vec::new(), }; @@ -1148,7 +1148,7 @@ impl EmitterWriter { (pos + 2, annotation.start_col.saturating_sub(left)) }; if let Some(ref label) = annotation.label { - buffer.puts(line_offset + pos, code_offset + col, &label, style); + buffer.puts(line_offset + pos, code_offset + col, label, style); } } @@ -1358,7 +1358,7 @@ impl EmitterWriter { // only render error codes, not lint codes if let Some(DiagnosticId::Error(ref code)) = *code { buffer.append(0, "[", Style::Level(*level)); - buffer.append(0, &code, Style::Level(*level)); + buffer.append(0, code, Style::Level(*level)); buffer.append(0, "]", Style::Level(*level)); label_width += 2 + code.len(); } @@ -1683,7 +1683,7 @@ impl EmitterWriter { }; // Render the replacements for each suggestion - let suggestions = suggestion.splice_lines(&**sm); + let suggestions = suggestion.splice_lines(sm); debug!("emit_suggestion_default: suggestions={:?}", suggestions); if suggestions.is_empty() { @@ -1784,7 +1784,7 @@ impl EmitterWriter { buffer.puts( row_num - 1 + line - line_start, max_line_num_len + 3, - &normalize_whitespace(&*file_lines.file.get_line(line - 1).unwrap()), + &normalize_whitespace(&file_lines.file.get_line(line - 1).unwrap()), Style::Removal, ); } @@ -1926,7 +1926,7 @@ impl EmitterWriter { buffer.putc( row_num, (padding as isize + p) as usize, - if part.is_addition(&sm) { '+' } else { '~' }, + if part.is_addition(sm) { '+' } else { '~' }, Style::Addition, ); } @@ -1973,7 +1973,7 @@ impl EmitterWriter { buffer.puts(row_num, max_line_num_len + 3, &msg, Style::NoStyle); } else if notice_capitalization { let msg = "notice the capitalization difference"; - buffer.puts(row_num, max_line_num_len + 3, &msg, Style::NoStyle); + buffer.puts(row_num, max_line_num_len + 3, msg, Style::NoStyle); } emit_to_destination(&buffer.render(), level, &mut self.dst, self.short_message)?; Ok(()) @@ -2028,7 +2028,7 @@ impl EmitterWriter { for child in children { let span = child.render_span.as_ref().unwrap_or(&child.span); if let Err(err) = self.emit_message_default( - &span, + span, &child.message, args, &None, @@ -2113,7 +2113,7 @@ impl EmitterWriter { *row_num - 1, max_line_num_len + 3, &normalize_whitespace( - &*file_lines.file.get_line(file_lines.lines[line_pos].line_index).unwrap(), + &file_lines.file.get_line(file_lines.lines[line_pos].line_index).unwrap(), ), Style::NoStyle, ); diff --git a/compiler/rustc_errors/src/json.rs b/compiler/rustc_errors/src/json.rs index c4498eafa4e..a37073d8fa3 100644 --- a/compiler/rustc_errors/src/json.rs +++ b/compiler/rustc_errors/src/json.rs @@ -136,7 +136,7 @@ impl Translate for JsonEmitter { } fn fallback_fluent_bundle(&self) -> &FluentBundle { - &**self.fallback_bundle + &self.fallback_bundle } } diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index 2be36a6eeb4..eb0506c459a 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -470,6 +470,7 @@ pub enum StashKey { /// Maybe there was a typo where a comma was forgotten before /// FRU syntax MaybeFruTypo, + CallAssocMethod, } fn default_track_diagnostic(_: &Diagnostic) {} @@ -1328,7 +1329,7 @@ impl HandlerInner { diagnostic.children.drain_filter(already_emitted_sub).for_each(|_| {}); - self.emitter.emit_diagnostic(&diagnostic); + self.emitter.emit_diagnostic(diagnostic); if diagnostic.is_error() { self.deduplicated_err_count += 1; } else if let Warning(_) = diagnostic.level { diff --git a/compiler/rustc_errors/src/translation.rs b/compiler/rustc_errors/src/translation.rs index a452fac0747..afd660ff1bf 100644 --- a/compiler/rustc_errors/src/translation.rs +++ b/compiler/rustc_errors/src/translation.rs @@ -59,13 +59,13 @@ pub trait Translate { trace!(?message, ?args); let (identifier, attr) = match message { DiagnosticMessage::Str(msg) | DiagnosticMessage::Eager(msg) => { - return Cow::Borrowed(&msg); + return Cow::Borrowed(msg); } DiagnosticMessage::FluentIdentifier(identifier, attr) => (identifier, attr), }; let translate_with_bundle = |bundle: &'a FluentBundle| -> Option<(Cow<'_, str>, Vec<_>)> { - let message = bundle.get_message(&identifier)?; + let message = bundle.get_message(identifier)?; let value = match attr { Some(attr) => message.get_attribute(attr)?.value(), None => message.value()?, @@ -73,7 +73,7 @@ pub trait Translate { debug!(?message, ?value); let mut errs = vec![]; - let translated = bundle.format_pattern(value, Some(&args), &mut errs); + let translated = bundle.format_pattern(value, Some(args), &mut errs); debug!(?translated, ?errs); Some((translated, errs)) }; diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index 9fe5d588b1f..13e2d1ebbe7 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -16,6 +16,7 @@ use rustc_errors::{ use rustc_lint_defs::builtin::PROC_MACRO_BACK_COMPAT; use rustc_lint_defs::{BufferedEarlyLint, BuiltinLintDiagnostics}; use rustc_parse::{self, parser, MACRO_ARGUMENTS}; +use rustc_session::errors::report_lit_error; use rustc_session::{parse::ParseSess, Limit, Session}; use rustc_span::def_id::{CrateNum, DefId, LocalDefId}; use rustc_span::edition::Edition; @@ -1245,7 +1246,10 @@ pub fn expr_to_spanned_string<'a>( Some((err, true)) } Ok(ast::LitKind::Err) => None, - Err(_) => None, + Err(err) => { + report_lit_error(&cx.sess.parse_sess, err, token_lit, expr.span); + None + } _ => Some((cx.struct_span_err(expr.span, err_msg), false)), }, ast::ExprKind::Err => None, diff --git a/compiler/rustc_expand/src/build.rs b/compiler/rustc_expand/src/build.rs index 234cf1b315a..4812bdd9dd8 100644 --- a/compiler/rustc_expand/src/build.rs +++ b/compiler/rustc_expand/src/build.rs @@ -539,6 +539,9 @@ impl<'a> ExtCtxt<'a> { fn_decl, body, fn_decl_span: span, + // FIXME(SarthakSingh31): This points to the start of the declaration block and + // not the span of the argument block. + fn_arg_span: span, })), ) } @@ -579,8 +582,6 @@ impl<'a> ExtCtxt<'a> { attrs: ast::AttrVec, kind: ast::ItemKind, ) -> P<ast::Item> { - // FIXME: Would be nice if our generated code didn't violate - // Rust coding conventions P(ast::Item { ident: name, attrs, @@ -618,11 +619,23 @@ impl<'a> ExtCtxt<'a> { self.item(span, name, AttrVec::new(), ast::ItemKind::Const(def, ty, Some(expr))) } - pub fn attribute(&self, mi: ast::MetaItem) -> ast::Attribute { - attr::mk_attr_outer(&self.sess.parse_sess.attr_id_generator, mi) + // Builds `#[name]`. + pub fn attr_word(&self, name: Symbol, span: Span) -> ast::Attribute { + let g = &self.sess.parse_sess.attr_id_generator; + attr::mk_attr_word(g, ast::AttrStyle::Outer, name, span) } - pub fn meta_word(&self, sp: Span, w: Symbol) -> ast::MetaItem { - attr::mk_word_item(Ident::new(w, sp)) + // Builds `#[name = val]`. + // + // Note: `span` is used for both the identifer and the value. + pub fn attr_name_value_str(&self, name: Symbol, val: Symbol, span: Span) -> ast::Attribute { + let g = &self.sess.parse_sess.attr_id_generator; + attr::mk_attr_name_value_str(g, ast::AttrStyle::Outer, name, val, span) + } + + // Builds `#[outer(inner)]`. + pub fn attr_nested_word(&self, outer: Symbol, inner: Symbol, span: Span) -> ast::Attribute { + let g = &self.sess.parse_sess.attr_id_generator; + attr::mk_attr_nested_word(g, ast::AttrStyle::Outer, outer, inner, span) } } diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs index 3e98b024c73..e799fa404f6 100644 --- a/compiler/rustc_expand/src/expand.rs +++ b/compiler/rustc_expand/src/expand.rs @@ -1644,7 +1644,7 @@ impl<'a, 'b> InvocationCollector<'a, 'b> { let mut span: Option<Span> = None; while let Some(attr) = attrs.next() { rustc_ast_passes::feature_gate::check_attribute(attr, self.cx.sess, features); - validate_attr::check_meta(&self.cx.sess.parse_sess, attr); + validate_attr::check_attr(&self.cx.sess.parse_sess, attr); let current_span = if let Some(sp) = span { sp.to(attr.span) } else { attr.span }; span = Some(current_span); diff --git a/compiler/rustc_fs_util/src/lib.rs b/compiler/rustc_fs_util/src/lib.rs index 63998bb6b00..a7dfce3b9b8 100644 --- a/compiler/rustc_fs_util/src/lib.rs +++ b/compiler/rustc_fs_util/src/lib.rs @@ -65,7 +65,7 @@ pub enum LinkOrCopy { pub fn link_or_copy<P: AsRef<Path>, Q: AsRef<Path>>(p: P, q: Q) -> io::Result<LinkOrCopy> { let p = p.as_ref(); let q = q.as_ref(); - match fs::remove_file(&q) { + match fs::remove_file(q) { Ok(()) => (), Err(err) if err.kind() == io::ErrorKind::NotFound => (), Err(err) => return Err(err), diff --git a/compiler/rustc_graphviz/src/lib.rs b/compiler/rustc_graphviz/src/lib.rs index 401d3f6689c..1f8268cc17c 100644 --- a/compiler/rustc_graphviz/src/lib.rs +++ b/compiler/rustc_graphviz/src/lib.rs @@ -410,7 +410,7 @@ impl<'a> Id<'a> { } pub fn as_slice(&'a self) -> &'a str { - &*self.name + &self.name } } @@ -515,7 +515,7 @@ impl<'a> LabelText<'a> { pub fn to_dot_string(&self) -> String { match *self { LabelStr(ref s) => format!("\"{}\"", s.escape_default()), - EscStr(ref s) => format!("\"{}\"", LabelText::escape_str(&s)), + EscStr(ref s) => format!("\"{}\"", LabelText::escape_str(s)), HtmlStr(ref s) => format!("<{}>", s), } } @@ -529,7 +529,7 @@ impl<'a> LabelText<'a> { EscStr(s) => s, LabelStr(s) => { if s.contains('\\') { - (&*s).escape_default().to_string().into() + s.escape_default().to_string().into() } else { s } diff --git a/compiler/rustc_hir/src/arena.rs b/compiler/rustc_hir/src/arena.rs index 44335b7f42e..c89e7eb75f8 100644 --- a/compiler/rustc_hir/src/arena.rs +++ b/compiler/rustc_hir/src/arena.rs @@ -39,6 +39,7 @@ macro_rules! arena_types { [] param: rustc_hir::Param<'tcx>, [] pat: rustc_hir::Pat<'tcx>, [] path: rustc_hir::Path<'tcx>, + [] use_path: rustc_hir::UsePath<'tcx>, [] path_segment: rustc_hir::PathSegment<'tcx>, [] poly_trait_ref: rustc_hir::PolyTraitRef<'tcx>, [] qpath: rustc_hir::QPath<'tcx>, diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index 81aedcce877..636e6e1b48d 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -183,14 +183,17 @@ impl Lifetime { /// `std::cmp::PartialEq`. It's represented as a sequence of identifiers, /// along with a bunch of supporting information. #[derive(Debug, HashStable_Generic)] -pub struct Path<'hir> { +pub struct Path<'hir, R = Res> { pub span: Span, /// The resolution for the path. - pub res: Res, + pub res: R, /// The segments in the path: the things separated by `::`. pub segments: &'hir [PathSegment<'hir>], } +/// Up to three resolutions for type, value and macro namespaces. +pub type UsePath<'hir> = Path<'hir, SmallVec<[Res; 3]>>; + impl Path<'_> { pub fn is_global(&self) -> bool { !self.segments.is_empty() && self.segments[0].ident.name == kw::PathRoot @@ -940,7 +943,10 @@ pub struct Closure<'hir> { pub bound_generic_params: &'hir [GenericParam<'hir>], pub fn_decl: &'hir FnDecl<'hir>, pub body: BodyId, + /// The span of the declaration block: 'move |...| -> ...' pub fn_decl_span: Span, + /// The span of the argument block `|...|` + pub fn_arg_span: Option<Span>, pub movability: Option<Movability>, } @@ -2431,7 +2437,7 @@ impl<'hir> Ty<'hir> { pub fn peel_refs(&self) -> &Self { let mut final_ty = self; while let TyKind::Rptr(_, MutTy { ty, .. }) = &final_ty.kind { - final_ty = &ty; + final_ty = ty; } final_ty } @@ -3068,7 +3074,7 @@ pub enum ItemKind<'hir> { /// or just /// /// `use foo::bar::baz;` (with `as baz` implicitly on the right). - Use(&'hir Path<'hir>, UseKind), + Use(&'hir UsePath<'hir>, UseKind), /// A `static` item. Static(&'hir Ty<'hir>, Mutability, BodyId), diff --git a/compiler/rustc_hir/src/hir_id.rs b/compiler/rustc_hir/src/hir_id.rs index 33f02a115ef..93613ef27d4 100644 --- a/compiler/rustc_hir/src/hir_id.rs +++ b/compiler/rustc_hir/src/hir_id.rs @@ -116,7 +116,7 @@ impl Ord for HirId { impl PartialOrd for HirId { fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> { - Some(self.cmp(&other)) + Some(self.cmp(other)) } } diff --git a/compiler/rustc_hir/src/intravisit.rs b/compiler/rustc_hir/src/intravisit.rs index 957f8c1058e..938ace2c785 100644 --- a/compiler/rustc_hir/src/intravisit.rs +++ b/compiler/rustc_hir/src/intravisit.rs @@ -367,7 +367,7 @@ pub trait Visitor<'v>: Sized { fn visit_fn(&mut self, fk: FnKind<'v>, fd: &'v FnDecl<'v>, b: BodyId, _: Span, id: HirId) { walk_fn(self, fk, fd, b, id) } - fn visit_use(&mut self, path: &'v Path<'v>, hir_id: HirId) { + fn visit_use(&mut self, path: &'v UsePath<'v>, hir_id: HirId) { walk_use(self, path, hir_id) } fn visit_trait_item(&mut self, ti: &'v TraitItem<'v>) { @@ -422,7 +422,7 @@ pub trait Visitor<'v>: Sized { fn visit_qpath(&mut self, qpath: &'v QPath<'v>, id: HirId, _span: Span) { walk_qpath(self, qpath, id) } - fn visit_path(&mut self, path: &'v Path<'v>, _id: HirId) { + fn visit_path(&mut self, path: &Path<'v>, _id: HirId) { walk_path(self, path) } fn visit_path_segment(&mut self, path_segment: &'v PathSegment<'v>) { @@ -448,7 +448,7 @@ pub trait Visitor<'v>: Sized { pub fn walk_param<'v, V: Visitor<'v>>(visitor: &mut V, param: &'v Param<'v>) { visitor.visit_id(param.hir_id); - visitor.visit_pat(¶m.pat); + visitor.visit_pat(param.pat); } pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) { @@ -470,7 +470,7 @@ pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) { } ItemKind::Fn(ref sig, ref generics, body_id) => visitor.visit_fn( FnKind::ItemFn(item.ident, generics, sig.header), - &sig.decl, + sig.decl, body_id, item.span, item.hir_id(), @@ -544,7 +544,7 @@ pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) { pub fn walk_body<'v, V: Visitor<'v>>(visitor: &mut V, body: &'v Body<'v>) { walk_list!(visitor, visit_param, body.params); - visitor.visit_expr(&body.value); + visitor.visit_expr(body.value); } pub fn walk_ident<'v, V: Visitor<'v>>(visitor: &mut V, ident: Ident) { @@ -580,7 +580,7 @@ pub fn walk_local<'v, V: Visitor<'v>>(visitor: &mut V, local: &'v Local<'v>) { // dominates the local's definition. walk_list!(visitor, visit_expr, &local.init); visitor.visit_id(local.hir_id); - visitor.visit_pat(&local.pat); + visitor.visit_pat(local.pat); if let Some(els) = local.els { visitor.visit_block(els); } @@ -606,7 +606,7 @@ pub fn walk_stmt<'v, V: Visitor<'v>>(visitor: &mut V, statement: &'v Stmt<'v>) { pub fn walk_arm<'v, V: Visitor<'v>>(visitor: &mut V, arm: &'v Arm<'v>) { visitor.visit_id(arm.hir_id); - visitor.visit_pat(&arm.pat); + visitor.visit_pat(arm.pat); if let Some(ref g) = arm.guard { match g { Guard::If(ref e) => visitor.visit_expr(e), @@ -615,7 +615,7 @@ pub fn walk_arm<'v, V: Visitor<'v>>(visitor: &mut V, arm: &'v Arm<'v>) { } } } - visitor.visit_expr(&arm.body); + visitor.visit_expr(arm.body); } pub fn walk_pat<'v, V: Visitor<'v>>(visitor: &mut V, pattern: &'v Pat<'v>) { @@ -660,7 +660,7 @@ pub fn walk_pat<'v, V: Visitor<'v>>(visitor: &mut V, pattern: &'v Pat<'v>) { pub fn walk_pat_field<'v, V: Visitor<'v>>(visitor: &mut V, field: &'v PatField<'v>) { visitor.visit_id(field.hir_id); visitor.visit_ident(field.ident); - visitor.visit_pat(&field.pat) + visitor.visit_pat(field.pat) } pub fn walk_array_len<'v, V: Visitor<'v>>(visitor: &mut V, len: &'v ArrayLen) { @@ -740,6 +740,7 @@ pub fn walk_expr<'v, V: Visitor<'v>>(visitor: &mut V, expression: &'v Expr<'v>) body, capture_clause: _, fn_decl_span: _, + fn_arg_span: _, movability: _, }) => { walk_list!(visitor, visit_generic_param, bound_generic_params); @@ -799,7 +800,7 @@ pub fn walk_let_expr<'v, V: Visitor<'v>>(visitor: &mut V, let_expr: &'v Let<'v>) pub fn walk_expr_field<'v, V: Visitor<'v>>(visitor: &mut V, field: &'v ExprField<'v>) { visitor.visit_id(field.hir_id); visitor.visit_ident(field.ident); - visitor.visit_expr(&field.expr) + visitor.visit_expr(field.expr) } pub fn walk_ty<'v, V: Visitor<'v>>(visitor: &mut V, typ: &'v Ty<'v>) { @@ -807,10 +808,10 @@ pub fn walk_ty<'v, V: Visitor<'v>>(visitor: &mut V, typ: &'v Ty<'v>) { match typ.kind { TyKind::Slice(ref ty) => visitor.visit_ty(ty), - TyKind::Ptr(ref mutable_type) => visitor.visit_ty(&mutable_type.ty), + TyKind::Ptr(ref mutable_type) => visitor.visit_ty(mutable_type.ty), TyKind::Rptr(ref lifetime, ref mutable_type) => { visitor.visit_lifetime(lifetime); - visitor.visit_ty(&mutable_type.ty) + visitor.visit_ty(mutable_type.ty) } TyKind::Never => {} TyKind::Tup(tuple_element_types) => { @@ -818,7 +819,7 @@ pub fn walk_ty<'v, V: Visitor<'v>>(visitor: &mut V, typ: &'v Ty<'v>) { } TyKind::BareFn(ref function_declaration) => { walk_list!(visitor, visit_generic_param, function_declaration.generic_params); - visitor.visit_fn_decl(&function_declaration.decl); + visitor.visit_fn_decl(function_declaration.decl); } TyKind::Path(ref qpath) => { visitor.visit_qpath(qpath, typ.hir_id, typ.span); @@ -938,9 +939,12 @@ pub fn walk_fn_kind<'v, V: Visitor<'v>>(visitor: &mut V, function_kind: FnKind<' } } -pub fn walk_use<'v, V: Visitor<'v>>(visitor: &mut V, path: &'v Path<'v>, hir_id: HirId) { +pub fn walk_use<'v, V: Visitor<'v>>(visitor: &mut V, path: &'v UsePath<'v>, hir_id: HirId) { visitor.visit_id(hir_id); - visitor.visit_path(path, hir_id); + let UsePath { segments, ref res, span } = *path; + for &res in res { + visitor.visit_path(&Path { segments, res, span }, hir_id); + } } pub fn walk_trait_item<'v, V: Visitor<'v>>(visitor: &mut V, trait_item: &'v TraitItem<'v>) { @@ -948,8 +952,8 @@ pub fn walk_trait_item<'v, V: Visitor<'v>>(visitor: &mut V, trait_item: &'v Trai let TraitItem { ident, generics, ref defaultness, ref kind, span, owner_id: _ } = *trait_item; let hir_id = trait_item.hir_id(); visitor.visit_ident(ident); - visitor.visit_generics(&generics); - visitor.visit_defaultness(&defaultness); + visitor.visit_generics(generics); + visitor.visit_defaultness(defaultness); match *kind { TraitItemKind::Const(ref ty, default) => { visitor.visit_id(hir_id); @@ -958,13 +962,13 @@ pub fn walk_trait_item<'v, V: Visitor<'v>>(visitor: &mut V, trait_item: &'v Trai } TraitItemKind::Fn(ref sig, TraitFn::Required(param_names)) => { visitor.visit_id(hir_id); - visitor.visit_fn_decl(&sig.decl); + visitor.visit_fn_decl(sig.decl); for ¶m_name in param_names { visitor.visit_ident(param_name); } } TraitItemKind::Fn(ref sig, TraitFn::Provided(body_id)) => { - visitor.visit_fn(FnKind::Method(ident, sig), &sig.decl, body_id, span, hir_id); + visitor.visit_fn(FnKind::Method(ident, sig), sig.decl, body_id, span, hir_id); } TraitItemKind::Type(bounds, ref default) => { visitor.visit_id(hir_id); @@ -1006,7 +1010,7 @@ pub fn walk_impl_item<'v, V: Visitor<'v>>(visitor: &mut V, impl_item: &'v ImplIt ImplItemKind::Fn(ref sig, body_id) => { visitor.visit_fn( FnKind::Method(impl_item.ident, sig), - &sig.decl, + sig.decl, body_id, impl_item.span, impl_item.hir_id(), @@ -1039,7 +1043,7 @@ pub fn walk_impl_item_ref<'v, V: Visitor<'v>>(visitor: &mut V, impl_item_ref: &' pub fn walk_trait_ref<'v, V: Visitor<'v>>(visitor: &mut V, trait_ref: &'v TraitRef<'v>) { visitor.visit_id(trait_ref.hir_ref_id); - visitor.visit_path(&trait_ref.path, trait_ref.hir_ref_id) + visitor.visit_path(trait_ref.path, trait_ref.hir_ref_id) } pub fn walk_param_bound<'v, V: Visitor<'v>>(visitor: &mut V, bound: &'v GenericBound<'v>) { @@ -1071,7 +1075,7 @@ pub fn walk_struct_def<'v, V: Visitor<'v>>( pub fn walk_field_def<'v, V: Visitor<'v>>(visitor: &mut V, field: &'v FieldDef<'v>) { visitor.visit_id(field.hir_id); visitor.visit_ident(field.ident); - visitor.visit_ty(&field.ty); + visitor.visit_ty(field.ty); } pub fn walk_enum_def<'v, V: Visitor<'v>>( @@ -1126,7 +1130,7 @@ pub fn walk_qpath<'v, V: Visitor<'v>>(visitor: &mut V, qpath: &'v QPath<'v>, id: } } -pub fn walk_path<'v, V: Visitor<'v>>(visitor: &mut V, path: &'v Path<'v>) { +pub fn walk_path<'v, V: Visitor<'v>>(visitor: &mut V, path: &Path<'v>) { for segment in path.segments { visitor.visit_path_segment(segment); } diff --git a/compiler/rustc_hir_analysis/src/astconv/generics.rs b/compiler/rustc_hir_analysis/src/astconv/generics.rs index 47915b4bd4e..f64d65cc6ad 100644 --- a/compiler/rustc_hir_analysis/src/astconv/generics.rs +++ b/compiler/rustc_hir_analysis/src/astconv/generics.rs @@ -11,7 +11,6 @@ use rustc_hir as hir; use rustc_hir::def::{DefKind, Res}; use rustc_hir::def_id::DefId; use rustc_hir::GenericArg; -use rustc_infer::infer::TyCtxtInferExt; use rustc_middle::ty::{ self, subst, subst::SubstsRef, GenericParamDef, GenericParamDefKind, IsSuggestable, Ty, TyCtxt, }; @@ -83,9 +82,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { Res::Def(DefKind::TyParam, src_def_id) => { if let Some(param_local_id) = param.def_id.as_local() { let param_name = tcx.hir().ty_param_name(param_local_id); - let infcx = tcx.infer_ctxt().build(); - let param_type = - infcx.resolve_numeric_literals_with_default(tcx.type_of(param.def_id)); + let param_type = tcx.type_of(param.def_id); if param_type.is_suggestable(tcx, false) { err.span_suggestion( tcx.def_span(src_def_id), diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs index 82150310638..f204d59d005 100644 --- a/compiler/rustc_hir_analysis/src/astconv/mod.rs +++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs @@ -347,7 +347,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { assert!(self_ty.is_some()); } } else { - assert!(self_ty.is_none() && parent_substs.is_empty()); + assert!(self_ty.is_none()); } let arg_count = Self::check_generic_arg_count( @@ -1821,7 +1821,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { // Check if we have an enum variant. let mut variant_resolution = None; - if let ty::Adt(adt_def, _) = qself_ty.kind() { + if let ty::Adt(adt_def, adt_substs) = qself_ty.kind() { if adt_def.is_enum() { let variant_def = adt_def .variants() @@ -1923,8 +1923,13 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { let Some(assoc_ty_did) = self.lookup_assoc_ty(assoc_ident, hir_ref_id, span, impl_) else { continue; }; - // FIXME(inherent_associated_types): This does not substitute parameters. - let ty = tcx.type_of(assoc_ty_did); + let item_substs = self.create_substs_for_associated_item( + span, + assoc_ty_did, + assoc_segment, + adt_substs, + ); + let ty = tcx.bound_type_of(assoc_ty_did).subst(tcx, item_substs); return Ok((ty, DefKind::AssocTy, assoc_ty_did)); } } diff --git a/compiler/rustc_hir_analysis/src/check/compare_method.rs b/compiler/rustc_hir_analysis/src/check/compare_method.rs index ba58672e759..82a77416a19 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_method.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_method.rs @@ -173,13 +173,11 @@ fn compare_predicate_entailment<'tcx>( impl_to_placeholder_substs.rebase_onto(tcx, impl_m.container_id(tcx), trait_to_impl_substs); debug!("compare_impl_method: trait_to_placeholder_substs={:?}", trait_to_placeholder_substs); - let impl_m_generics = tcx.generics_of(impl_m.def_id); - let trait_m_generics = tcx.generics_of(trait_m.def_id); let impl_m_predicates = tcx.predicates_of(impl_m.def_id); let trait_m_predicates = tcx.predicates_of(trait_m.def_id); // Check region bounds. - check_region_bounds_on_impl_item(tcx, impl_m, trait_m, &trait_m_generics, &impl_m_generics)?; + check_region_bounds_on_impl_item(tcx, impl_m, trait_m, false)?; // Create obligations for each predicate declared by the impl // definition in the context of the trait's parameter @@ -338,6 +336,7 @@ pub fn collect_trait_impl_trait_tys<'tcx>( // First, check a few of the same thing as `compare_impl_method`, just so we don't ICE during substitutions later. compare_number_of_generics(tcx, impl_m, trait_m, tcx.hir().span_if_local(impl_m.def_id), true)?; compare_generic_param_kinds(tcx, impl_m, trait_m, true)?; + check_region_bounds_on_impl_item(tcx, impl_m, trait_m, true)?; let trait_to_impl_substs = impl_trait_ref.substs; @@ -722,12 +721,14 @@ fn check_region_bounds_on_impl_item<'tcx>( tcx: TyCtxt<'tcx>, impl_m: &ty::AssocItem, trait_m: &ty::AssocItem, - trait_generics: &ty::Generics, - impl_generics: &ty::Generics, + delay: bool, ) -> Result<(), ErrorGuaranteed> { - let trait_params = trait_generics.own_counts().lifetimes; + let impl_generics = tcx.generics_of(impl_m.def_id); let impl_params = impl_generics.own_counts().lifetimes; + let trait_generics = tcx.generics_of(trait_m.def_id); + let trait_params = trait_generics.own_counts().lifetimes; + debug!( "check_region_bounds_on_impl_item: \ trait_generics={:?} \ @@ -761,12 +762,16 @@ fn check_region_bounds_on_impl_item<'tcx>( None }; - let reported = tcx.sess.emit_err(LifetimesOrBoundsMismatchOnTrait { - span, - item_kind: assoc_item_kind_str(impl_m), - ident: impl_m.ident(tcx), - generics_span, - }); + let reported = tcx + .sess + .create_err(LifetimesOrBoundsMismatchOnTrait { + span, + item_kind: assoc_item_kind_str(impl_m), + ident: impl_m.ident(tcx), + generics_span, + }) + .emit_unless(delay); + return Err(reported); } @@ -1504,18 +1509,10 @@ fn compare_type_predicate_entailment<'tcx>( let trait_to_impl_substs = impl_substs.rebase_onto(tcx, impl_ty.container_id(tcx), impl_trait_ref.substs); - let impl_ty_generics = tcx.generics_of(impl_ty.def_id); - let trait_ty_generics = tcx.generics_of(trait_ty.def_id); let impl_ty_predicates = tcx.predicates_of(impl_ty.def_id); let trait_ty_predicates = tcx.predicates_of(trait_ty.def_id); - check_region_bounds_on_impl_item( - tcx, - impl_ty, - trait_ty, - &trait_ty_generics, - &impl_ty_generics, - )?; + check_region_bounds_on_impl_item(tcx, impl_ty, trait_ty, false)?; let impl_ty_own_bounds = impl_ty_predicates.instantiate_own(tcx, impl_substs); diff --git a/compiler/rustc_hir_analysis/src/check/region.rs b/compiler/rustc_hir_analysis/src/check/region.rs index ff32329e431..b315ebad468 100644 --- a/compiler/rustc_hir_analysis/src/check/region.rs +++ b/compiler/rustc_hir_analysis/src/check/region.rs @@ -241,17 +241,46 @@ fn resolve_expr<'tcx>(visitor: &mut RegionResolutionVisitor<'tcx>, expr: &'tcx h // scopes, meaning that temporaries cannot outlive them. // This ensures fixed size stacks. hir::ExprKind::Binary( - source_map::Spanned { node: hir::BinOpKind::And, .. }, - _, - ref r, - ) - | hir::ExprKind::Binary( - source_map::Spanned { node: hir::BinOpKind::Or, .. }, - _, + source_map::Spanned { node: hir::BinOpKind::And | hir::BinOpKind::Or, .. }, + ref l, ref r, ) => { - // For shortcircuiting operators, mark the RHS as a terminating - // scope since it only executes conditionally. + // expr is a short circuiting operator (|| or &&). As its + // functionality can't be overridden by traits, it always + // processes bool sub-expressions. bools are Copy and thus we + // can drop any temporaries in evaluation (read) order + // (with the exception of potentially failing let expressions). + // We achieve this by enclosing the operands in a terminating + // scope, both the LHS and the RHS. + + // We optimize this a little in the presence of chains. + // Chains like a && b && c get lowered to AND(AND(a, b), c). + // In here, b and c are RHS, while a is the only LHS operand in + // that chain. This holds true for longer chains as well: the + // leading operand is always the only LHS operand that is not a + // binop itself. Putting a binop like AND(a, b) into a + // terminating scope is not useful, thus we only put the LHS + // into a terminating scope if it is not a binop. + + let terminate_lhs = match l.kind { + // let expressions can create temporaries that live on + hir::ExprKind::Let(_) => false, + // binops already drop their temporaries, so there is no + // need to put them into a terminating scope. + // This is purely an optimization to reduce the number of + // terminating scopes. + hir::ExprKind::Binary( + source_map::Spanned { + node: hir::BinOpKind::And | hir::BinOpKind::Or, .. + }, + .., + ) => false, + // otherwise: mark it as terminating + _ => true, + }; + if terminate_lhs { + terminating(l.hir_id.local_id); + } // `Let` expressions (in a let-chain) shouldn't be terminating, as their temporaries // should live beyond the immediate expression diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index 7daed74e9de..b065ace6bf5 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -1544,7 +1544,7 @@ fn check_fn_or_method<'tcx>( check_where_clauses(wfcx, span, def_id); check_return_position_impl_trait_in_trait_bounds( - tcx, + wfcx, def_id, sig.output(), hir_decl.output.span(), @@ -1580,13 +1580,14 @@ fn check_fn_or_method<'tcx>( /// Basically `check_associated_type_bounds`, but separated for now and should be /// deduplicated when RPITITs get lowered into real associated items. -#[tracing::instrument(level = "trace", skip(tcx))] +#[tracing::instrument(level = "trace", skip(wfcx))] fn check_return_position_impl_trait_in_trait_bounds<'tcx>( - tcx: TyCtxt<'tcx>, + wfcx: &WfCheckingCtxt<'_, 'tcx>, fn_def_id: LocalDefId, fn_output: Ty<'tcx>, span: Span, ) { + let tcx = wfcx.tcx(); if let Some(assoc_item) = tcx.opt_associated_item(fn_def_id.to_def_id()) && assoc_item.container == ty::AssocItemContainer::TraitContainer { @@ -1596,22 +1597,20 @@ fn check_return_position_impl_trait_in_trait_bounds<'tcx>( && tcx.def_kind(proj.item_def_id) == DefKind::ImplTraitPlaceholder && tcx.impl_trait_in_trait_parent(proj.item_def_id) == fn_def_id.to_def_id() { - // Create a new context, since we want the opaque's ParamEnv and not the parent's. let span = tcx.def_span(proj.item_def_id); - enter_wf_checking_ctxt(tcx, span, proj.item_def_id.expect_local(), |wfcx| { - let bounds = wfcx.tcx().explicit_item_bounds(proj.item_def_id); - let wf_obligations = bounds.iter().flat_map(|&(bound, bound_span)| { - let normalized_bound = wfcx.normalize(span, None, bound); - traits::wf::predicate_obligations( - wfcx.infcx, - wfcx.param_env, - wfcx.body_id, - normalized_bound, - bound_span, - ) - }); - wfcx.register_obligations(wf_obligations); + let bounds = wfcx.tcx().explicit_item_bounds(proj.item_def_id); + let wf_obligations = bounds.iter().flat_map(|&(bound, bound_span)| { + let bound = ty::EarlyBinder(bound).subst(tcx, proj.substs); + let normalized_bound = wfcx.normalize(span, None, bound); + traits::wf::predicate_obligations( + wfcx.infcx, + wfcx.param_env, + wfcx.body_id, + normalized_bound, + bound_span, + ) }); + wfcx.register_obligations(wf_obligations); } } } diff --git a/compiler/rustc_hir_analysis/src/check_unused.rs b/compiler/rustc_hir_analysis/src/check_unused.rs index d0c31733481..5749b04783c 100644 --- a/compiler/rustc_hir_analysis/src/check_unused.rs +++ b/compiler/rustc_hir_analysis/src/check_unused.rs @@ -57,25 +57,6 @@ fn unused_crates_lint(tcx: TyCtxt<'_>) { .maybe_unused_extern_crates(()) .iter() .filter(|&&(def_id, _)| { - // The `def_id` here actually was calculated during resolution (at least - // at the time of this writing) and is being shipped to us via a side - // channel of the tcx. There may have been extra expansion phases, - // however, which ended up removing the `def_id` *after* expansion. - // - // As a result we need to verify that `def_id` is indeed still valid for - // our AST and actually present in the HIR map. If it's not there then - // there's safely nothing to warn about, and otherwise we carry on with - // our execution. - // - // Note that if we carry through to the `extern_mod_stmt_cnum` query - // below it'll cause a panic because `def_id` is actually bogus at this - // point in time otherwise. - if tcx.hir().find(tcx.hir().local_def_id_to_hir_id(def_id)).is_none() { - return false; - } - true - }) - .filter(|&&(def_id, _)| { tcx.extern_mod_stmt_cnum(def_id).map_or(true, |cnum| { !tcx.is_compiler_builtins(cnum) && !tcx.is_panic_runtime(cnum) diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index d623e726139..b7084303aaf 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -2073,6 +2073,11 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: DefId) -> CodegenFnAttrs { } } + if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::NO_COVERAGE; + codegen_fn_attrs.inline = InlineAttr::Never; + } + // Weak lang items have the same semantics as "std internal" symbols in the // sense that they're preserved through all our LTO passes and only // strippable by the linker. diff --git a/compiler/rustc_hir_analysis/src/collect/lifetimes.rs b/compiler/rustc_hir_analysis/src/collect/lifetimes.rs index c11eed7ad9e..9a7b261fffd 100644 --- a/compiler/rustc_hir_analysis/src/collect/lifetimes.rs +++ b/compiler/rustc_hir_analysis/src/collect/lifetimes.rs @@ -814,7 +814,7 @@ impl<'a, 'tcx> Visitor<'tcx> for LifetimeContext<'a, 'tcx> { } } - fn visit_path(&mut self, path: &'tcx hir::Path<'tcx>, _: hir::HirId) { + fn visit_path(&mut self, path: &hir::Path<'tcx>, _: hir::HirId) { for (i, segment) in path.segments.iter().enumerate() { let depth = path.segments.len() - i - 1; if let Some(ref args) = segment.args { diff --git a/compiler/rustc_hir_pretty/src/lib.rs b/compiler/rustc_hir_pretty/src/lib.rs index 95729822677..3791b2c8661 100644 --- a/compiler/rustc_hir_pretty/src/lib.rs +++ b/compiler/rustc_hir_pretty/src/lib.rs @@ -1480,6 +1480,7 @@ impl<'a> State<'a> { fn_decl, body, fn_decl_span: _, + fn_arg_span: _, movability: _, def_id: _, }) => { @@ -1591,7 +1592,7 @@ impl<'a> State<'a> { self.print_ident(Ident::with_dummy_span(name)) } - pub fn print_path(&mut self, path: &hir::Path<'_>, colons_before_params: bool) { + pub fn print_path<R>(&mut self, path: &hir::Path<'_, R>, colons_before_params: bool) { self.maybe_print_comment(path.span.lo()); for (i, segment) in path.segments.iter().enumerate() { diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs index 5d3419b3b6e..429cb60ba2b 100644 --- a/compiler/rustc_hir_typeck/src/closure.rs +++ b/compiler/rustc_hir_typeck/src/closure.rs @@ -456,10 +456,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .iter() .map(|ty| ArgKind::from_expected_ty(*ty, None)) .collect(); - let (closure_span, found_args) = match self.get_fn_like_arguments(expr_map_node) { - Some((sp, args)) => (Some(sp), args), - None => (None, Vec::new()), - }; + let (closure_span, closure_arg_span, found_args) = + match self.get_fn_like_arguments(expr_map_node) { + Some((sp, arg_sp, args)) => (Some(sp), arg_sp, args), + None => (None, None, Vec::new()), + }; let expected_span = expected_sig.cause_span.unwrap_or_else(|| self.tcx.def_span(expr_def_id)); self.report_arg_count_mismatch( @@ -468,6 +469,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { expected_args, found_args, true, + closure_arg_span, ) .emit(); diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index 0c5bbb3e20b..4a112e80f1d 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -528,6 +528,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.resolve_ty_and_res_fully_qualified_call(qpath, expr.hir_id, expr.span); let ty = match res { Res::Err => { + self.suggest_assoc_method_call(segs); let e = self.tcx.sess.delay_span_bug(qpath.span(), "`Res::Err` but no error emitted"); self.set_tainted_by_errors(e); diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 86384c7b93e..3078e0cbeda 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -1918,6 +1918,14 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { receiver: Option<&'tcx hir::Expr<'tcx>>, args: &'tcx [hir::Expr<'tcx>], ) -> bool { + // Do not call `fn_sig` on non-functions. + if !matches!( + self.tcx.def_kind(def_id), + DefKind::Fn | DefKind::AssocFn | DefKind::Variant | DefKind::Ctor(..) + ) { + return false; + } + let sig = self.tcx.fn_sig(def_id).skip_binder(); let args_referencing_param: Vec<_> = sig .inputs() diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs index ea141e815bf..1e9b5752130 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs @@ -22,7 +22,7 @@ use rustc_middle::ty::{self, Const, Ty, TyCtxt}; use rustc_session::Session; use rustc_span::symbol::Ident; use rustc_span::{self, Span}; -use rustc_trait_selection::traits::{ObligationCause, ObligationCauseCode}; +use rustc_trait_selection::traits::{ObligationCause, ObligationCauseCode, ObligationCtxt}; use std::cell::{Cell, RefCell}; use std::ops::Deref; @@ -162,6 +162,23 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { infcx: &self.infcx, typeck_results: Some(self.typeck_results.borrow()), fallback_has_occurred: self.fallback_has_occurred.get(), + normalize_fn_sig: Box::new(|fn_sig| { + if fn_sig.has_escaping_bound_vars() { + return fn_sig; + } + self.probe(|_| { + let ocx = ObligationCtxt::new_in_snapshot(self); + let normalized_fn_sig = + ocx.normalize(&ObligationCause::dummy(), self.param_env, fn_sig); + if ocx.select_all_or_error().is_empty() { + let normalized_fn_sig = self.resolve_vars_if_possible(normalized_fn_sig); + if !normalized_fn_sig.needs_infer() { + return normalized_fn_sig; + } + } + fn_sig + }) + }), } } diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index b9a8d16311c..4f92477b5d8 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -10,7 +10,7 @@ use rustc_hir::{ Expr, ExprKind, GenericBound, Node, Path, QPath, Stmt, StmtKind, TyKind, WherePredicate, }; use rustc_hir_analysis::astconv::AstConv; -use rustc_infer::infer::{self, TyCtxtInferExt}; +use rustc_infer::infer; use rustc_infer::traits::{self, StatementAsExpression}; use rustc_middle::lint::in_external_macro; use rustc_middle::ty::{self, Binder, DefIdTree, IsSuggestable, ToPredicate, Ty}; @@ -32,11 +32,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } pub(in super::super) fn suggest_semicolon_at_end(&self, span: Span, err: &mut Diagnostic) { + // This suggestion is incorrect for + // fn foo() -> bool { match () { () => true } || match () { () => true } } err.span_suggestion_short( span.shrink_to_hi(), "consider using a semicolon here", ";", - Applicability::MachineApplicable, + Applicability::MaybeIncorrect, ); } @@ -921,19 +923,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let ty = <dyn AstConv<'_>>::ast_ty_to_ty(self, ty); let bound_vars = self.tcx.late_bound_vars(fn_id); let ty = self.tcx.erase_late_bound_regions(Binder::bind_with_vars(ty, bound_vars)); - let ty = self.normalize(expr.span, ty); let ty = match self.tcx.asyncness(fn_id.owner) { - hir::IsAsync::Async => { - let infcx = self.tcx.infer_ctxt().build(); - infcx.get_impl_future_output_ty(ty).unwrap_or_else(|| { - span_bug!( - fn_decl.output.span(), - "failed to get output type of async function" - ) - }) - } + hir::IsAsync::Async => self.get_impl_future_output_ty(ty).unwrap_or_else(|| { + span_bug!(fn_decl.output.span(), "failed to get output type of async function") + }), hir::IsAsync::NotAsync => ty, }; + let ty = self.normalize(expr.span, ty); if self.can_coerce(found, ty) { err.multipart_suggestion( "you might have meant to return this value", diff --git a/compiler/rustc_hir_typeck/src/inherited.rs b/compiler/rustc_hir_typeck/src/inherited.rs index 869ad07c00d..b33e7b8d68c 100644 --- a/compiler/rustc_hir_typeck/src/inherited.rs +++ b/compiler/rustc_hir_typeck/src/inherited.rs @@ -1,7 +1,6 @@ use super::callee::DeferredCallResolution; use rustc_data_structures::fx::FxHashSet; -use rustc_data_structures::sync::Lrc; use rustc_hir as hir; use rustc_hir::def_id::LocalDefId; use rustc_hir::HirIdMap; @@ -11,9 +10,7 @@ use rustc_middle::ty::visit::TypeVisitable; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_span::def_id::LocalDefIdMap; use rustc_span::{self, Span}; -use rustc_trait_selection::traits::{ - self, ObligationCause, ObligationCtxt, TraitEngine, TraitEngineExt as _, -}; +use rustc_trait_selection::traits::{self, TraitEngine, TraitEngineExt as _}; use std::cell::RefCell; use std::ops::Deref; @@ -92,29 +89,7 @@ impl<'tcx> Inherited<'tcx> { infcx: tcx .infer_ctxt() .ignoring_regions() - .with_opaque_type_inference(DefiningAnchor::Bind(hir_owner.def_id)) - .with_normalize_fn_sig_for_diagnostic(Lrc::new(move |infcx, fn_sig| { - if fn_sig.has_escaping_bound_vars() { - return fn_sig; - } - infcx.probe(|_| { - let ocx = ObligationCtxt::new_in_snapshot(infcx); - let normalized_fn_sig = ocx.normalize( - &ObligationCause::dummy(), - // FIXME(compiler-errors): This is probably not the right param-env... - infcx.tcx.param_env(def_id), - fn_sig, - ); - if ocx.select_all_or_error().is_empty() { - let normalized_fn_sig = - infcx.resolve_vars_if_possible(normalized_fn_sig); - if !normalized_fn_sig.needs_infer() { - return normalized_fn_sig; - } - } - fn_sig - }) - })), + .with_opaque_type_inference(DefiningAnchor::Bind(hir_owner.def_id)), def_id, typeck_results: RefCell::new(ty::TypeckResults::new(hir_owner)), } diff --git a/compiler/rustc_hir_typeck/src/method/mod.rs b/compiler/rustc_hir_typeck/src/method/mod.rs index ebbd5eb1e64..a2ca5c3b7b7 100644 --- a/compiler/rustc_hir_typeck/src/method/mod.rs +++ b/compiler/rustc_hir_typeck/src/method/mod.rs @@ -20,7 +20,7 @@ use rustc_hir::def_id::DefId; use rustc_infer::infer::{self, InferOk}; use rustc_middle::traits::ObligationCause; use rustc_middle::ty::subst::{InternalSubsts, SubstsRef}; -use rustc_middle::ty::{self, DefIdTree, GenericParamDefKind, Ty, TypeVisitable}; +use rustc_middle::ty::{self, GenericParamDefKind, Ty, TypeVisitable}; use rustc_span::symbol::Ident; use rustc_span::Span; use rustc_trait_selection::traits::query::evaluate_obligation::InferCtxtExt; @@ -217,7 +217,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } // We probe again, taking all traits into account (not only those in scope). - let mut candidates = + let candidates = match self.lookup_probe(segment.ident, self_ty, call_expr, ProbeScope::AllTraits) { // If we find a different result the caller probably forgot to import a trait. Ok(ref new_pick) if pick.differs_from(new_pick) => { @@ -236,7 +236,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .collect(), _ => Vec::new(), }; - candidates.retain(|candidate| *candidate != self.tcx.parent(result.callee.def_id)); return Err(IllegalSizedBound(candidates, needs_mut, span)); } diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index c78a32c29dc..ae299cc9d13 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -9,7 +9,6 @@ use rustc_data_structures::fx::FxHashSet; use rustc_errors::Applicability; use rustc_hir as hir; use rustc_hir::def::DefKind; -use rustc_hir::def::Namespace; use rustc_infer::infer::canonical::OriginalQueryValues; use rustc_infer::infer::canonical::{Canonical, QueryResponse}; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; @@ -1876,6 +1875,15 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { self.tcx.erase_late_bound_regions(value) } + /// Determine if the given associated item type is relevant in the current context. + fn is_relevant_kind_for_mode(&self, kind: ty::AssocKind) -> bool { + match (self.mode, kind) { + (Mode::MethodCall, ty::AssocKind::Fn) => true, + (Mode::Path, ty::AssocKind::Const | ty::AssocKind::Fn) => true, + _ => false, + } + } + /// Finds the method with the appropriate name (or return type, as the case may be). If /// `allow_similar_names` is set, find methods with close-matching names. // The length of the returned iterator is nearly always 0 or 1 and this @@ -1888,7 +1896,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { .associated_items(def_id) .in_definition_order() .filter(|x| { - if x.kind.namespace() != Namespace::ValueNS { + if !self.is_relevant_kind_for_mode(x.kind) { return false; } match lev_distance_with_substrings(name.as_str(), x.name.as_str(), max_dist) @@ -1902,10 +1910,16 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { } else { self.fcx .associated_value(def_id, name) + .filter(|x| self.is_relevant_kind_for_mode(x.kind)) .map_or_else(SmallVec::new, |x| SmallVec::from_buf([x])) } } else { - self.tcx.associated_items(def_id).in_definition_order().copied().collect() + self.tcx + .associated_items(def_id) + .in_definition_order() + .filter(|x| self.is_relevant_kind_for_mode(x.kind)) + .copied() + .collect() } } } diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index 727fab9e7aa..9ba4ddfd5cf 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -5,6 +5,7 @@ use crate::errors; use crate::FnCtxt; use rustc_ast::ast::Mutability; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; +use rustc_errors::StashKey; use rustc_errors::{ pluralize, struct_span_err, Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed, MultiSpan, @@ -13,6 +14,8 @@ use rustc_hir as hir; use rustc_hir::def::DefKind; use rustc_hir::def_id::DefId; use rustc_hir::lang_items::LangItem; +use rustc_hir::PatKind::Binding; +use rustc_hir::PathSegment; use rustc_hir::{ExprKind, Node, QPath}; use rustc_infer::infer::{ type_variable::{TypeVariableOrigin, TypeVariableOriginKind}, @@ -35,11 +38,11 @@ use rustc_trait_selection::traits::{ FulfillmentError, Obligation, ObligationCause, ObligationCauseCode, }; -use std::cmp::Ordering; -use std::iter; - use super::probe::{AutorefOrPtrAdjustment, IsSuggestion, Mode, ProbeScope}; use super::{CandidateSource, MethodError, NoMatchData}; +use rustc_hir::intravisit::Visitor; +use std::cmp::Ordering; +use std::iter; impl<'a, 'tcx> FnCtxt<'a, 'tcx> { fn is_fn_ty(&self, ty: Ty<'tcx>, span: Span) -> bool { @@ -1462,6 +1465,61 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { false } + /// For code `rect::area(...)`, + /// if `rect` is a local variable and `area` is a valid assoc method for it, + /// we try to suggest `rect.area()` + pub(crate) fn suggest_assoc_method_call(&self, segs: &[PathSegment<'_>]) { + debug!("suggest_assoc_method_call segs: {:?}", segs); + let [seg1, seg2] = segs else { return; }; + let Some(mut diag) = + self.tcx.sess.diagnostic().steal_diagnostic(seg1.ident.span, StashKey::CallAssocMethod) + else { return }; + + let map = self.infcx.tcx.hir(); + let body = map.body(rustc_hir::BodyId { hir_id: self.body_id }); + struct LetVisitor<'a> { + result: Option<&'a hir::Expr<'a>>, + ident_name: Symbol, + } + + impl<'v> Visitor<'v> for LetVisitor<'v> { + fn visit_stmt(&mut self, ex: &'v hir::Stmt<'v>) { + if let hir::StmtKind::Local(hir::Local { pat, init, .. }) = &ex.kind { + if let Binding(_, _, ident, ..) = pat.kind && + ident.name == self.ident_name { + self.result = *init; + } + } + hir::intravisit::walk_stmt(self, ex); + } + } + + let mut visitor = LetVisitor { result: None, ident_name: seg1.ident.name }; + visitor.visit_body(&body); + + let parent = self.tcx.hir().get_parent_node(seg1.hir_id); + if let Some(Node::Expr(call_expr)) = self.tcx.hir().find(parent) && + let Some(expr) = visitor.result { + let self_ty = self.node_ty(expr.hir_id); + let probe = self.lookup_probe( + seg2.ident, + self_ty, + call_expr, + ProbeScope::TraitsInScope, + ); + if probe.is_ok() { + let sm = self.infcx.tcx.sess.source_map(); + diag.span_suggestion_verbose( + sm.span_extend_while(seg1.ident.span.shrink_to_hi(), |c| c == ':').unwrap(), + "you may have meant to call an instance method", + ".".to_string(), + Applicability::MaybeIncorrect + ); + } + } + diag.emit(); + } + /// Suggest calling a method on a field i.e. `a.field.bar()` instead of `a.bar()` fn suggest_calling_method_on_field( &self, diff --git a/compiler/rustc_infer/src/infer/at.rs b/compiler/rustc_infer/src/infer/at.rs index 2483ab724a4..4429e4f4362 100644 --- a/compiler/rustc_infer/src/infer/at.rs +++ b/compiler/rustc_infer/src/infer/at.rs @@ -77,10 +77,6 @@ impl<'tcx> InferCtxt<'tcx> { err_count_on_creation: self.err_count_on_creation, in_snapshot: self.in_snapshot.clone(), universe: self.universe.clone(), - normalize_fn_sig_for_diagnostic: self - .normalize_fn_sig_for_diagnostic - .as_ref() - .map(|f| f.clone()), intercrate: self.intercrate, } } diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index e2be8fb12d0..662136ca18d 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -95,6 +95,7 @@ pub mod nice_region_error; pub struct TypeErrCtxt<'a, 'tcx> { pub infcx: &'a InferCtxt<'tcx>, pub typeck_results: Option<std::cell::Ref<'a, ty::TypeckResults<'tcx>>>, + pub normalize_fn_sig: Box<dyn Fn(ty::PolyFnSig<'tcx>) -> ty::PolyFnSig<'tcx> + 'a>, pub fallback_has_occurred: bool, } @@ -1007,22 +1008,14 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { } } - fn normalize_fn_sig_for_diagnostic(&self, sig: ty::PolyFnSig<'tcx>) -> ty::PolyFnSig<'tcx> { - if let Some(normalize) = &self.normalize_fn_sig_for_diagnostic { - normalize(self, sig) - } else { - sig - } - } - /// Given two `fn` signatures highlight only sub-parts that are different. fn cmp_fn_sig( &self, sig1: &ty::PolyFnSig<'tcx>, sig2: &ty::PolyFnSig<'tcx>, ) -> (DiagnosticStyledString, DiagnosticStyledString) { - let sig1 = &self.normalize_fn_sig_for_diagnostic(*sig1); - let sig2 = &self.normalize_fn_sig_for_diagnostic(*sig2); + let sig1 = &(self.normalize_fn_sig)(*sig1); + let sig2 = &(self.normalize_fn_sig)(*sig2); let get_lifetimes = |sig| { use rustc_hir::def::Namespace; @@ -1262,7 +1255,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let num_display_types = consts_offset - regions_len; for (i, (ta1, ta2)) in type_arguments.take(num_display_types).enumerate() { let i = i + regions_len; - if ta1 == ta2 { + if ta1 == ta2 && !self.tcx.sess.verbose() { values.0.push_normal("_"); values.1.push_normal("_"); } else { @@ -1278,7 +1271,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let const_arguments = sub1.consts().zip(sub2.consts()); for (i, (ca1, ca2)) in const_arguments.enumerate() { let i = i + consts_offset; - if ca1 == ca2 { + if ca1 == ca2 && !self.tcx.sess.verbose() { values.0.push_normal("_"); values.1.push_normal("_"); } else { @@ -1457,7 +1450,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { (ty::FnPtr(sig1), ty::FnPtr(sig2)) => self.cmp_fn_sig(sig1, sig2), _ => { - if t1 == t2 { + if t1 == t2 && !self.tcx.sess.verbose() { // The two types are the same, elide and don't highlight. (DiagnosticStyledString::normal("_"), DiagnosticStyledString::normal("_")) } else { diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index 2bcb47cc383..2ce7cd8beba 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -80,7 +80,6 @@ pub struct InferOk<'tcx, T> { } pub type InferResult<'tcx, T> = Result<InferOk<'tcx, T>, TypeError<'tcx>>; -pub type Bound<T> = Option<T>; pub type UnitResult<'tcx> = RelateResult<'tcx, ()>; // "unify result" pub type FixupResult<'tcx, T> = Result<T, FixupError<'tcx>>; // "fixup result" @@ -334,9 +333,6 @@ pub struct InferCtxt<'tcx> { /// bound. universe: Cell<ty::UniverseIndex>, - normalize_fn_sig_for_diagnostic: - Option<Lrc<dyn Fn(&InferCtxt<'tcx>, ty::PolyFnSig<'tcx>) -> ty::PolyFnSig<'tcx>>>, - /// During coherence we have to assume that other crates may add /// additional impls which we currently don't know about. /// @@ -573,8 +569,6 @@ pub struct InferCtxtBuilder<'tcx> { considering_regions: bool, /// Whether we are in coherence mode. intercrate: bool, - normalize_fn_sig_for_diagnostic: - Option<Lrc<dyn Fn(&InferCtxt<'tcx>, ty::PolyFnSig<'tcx>) -> ty::PolyFnSig<'tcx>>>, } pub trait TyCtxtInferExt<'tcx> { @@ -587,7 +581,6 @@ impl<'tcx> TyCtxtInferExt<'tcx> for TyCtxt<'tcx> { tcx: self, defining_use_anchor: DefiningAnchor::Error, considering_regions: true, - normalize_fn_sig_for_diagnostic: None, intercrate: false, } } @@ -615,14 +608,6 @@ impl<'tcx> InferCtxtBuilder<'tcx> { self } - pub fn with_normalize_fn_sig_for_diagnostic( - mut self, - fun: Lrc<dyn Fn(&InferCtxt<'tcx>, ty::PolyFnSig<'tcx>) -> ty::PolyFnSig<'tcx>>, - ) -> Self { - self.normalize_fn_sig_for_diagnostic = Some(fun); - self - } - /// Given a canonical value `C` as a starting point, create an /// inference context that contains each of the bound values /// within instantiated as a fresh variable. The `f` closure is @@ -644,13 +629,7 @@ impl<'tcx> InferCtxtBuilder<'tcx> { } pub fn build(&mut self) -> InferCtxt<'tcx> { - let InferCtxtBuilder { - tcx, - defining_use_anchor, - considering_regions, - ref normalize_fn_sig_for_diagnostic, - intercrate, - } = *self; + let InferCtxtBuilder { tcx, defining_use_anchor, considering_regions, intercrate } = *self; InferCtxt { tcx, defining_use_anchor, @@ -666,9 +645,6 @@ impl<'tcx> InferCtxtBuilder<'tcx> { in_snapshot: Cell::new(false), skip_leak_check: Cell::new(false), universe: Cell::new(ty::UniverseIndex::ROOT), - normalize_fn_sig_for_diagnostic: normalize_fn_sig_for_diagnostic - .as_ref() - .map(|f| f.clone()), intercrate, } } @@ -709,7 +685,12 @@ impl<'tcx> InferCtxt<'tcx> { /// Creates a `TypeErrCtxt` for emitting various inference errors. /// During typeck, use `FnCtxt::err_ctxt` instead. pub fn err_ctxt(&self) -> TypeErrCtxt<'_, 'tcx> { - TypeErrCtxt { infcx: self, typeck_results: None, fallback_has_occurred: false } + TypeErrCtxt { + infcx: self, + typeck_results: None, + fallback_has_occurred: false, + normalize_fn_sig: Box::new(|fn_sig| fn_sig), + } } pub fn is_in_snapshot(&self) -> bool { diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs index 7f1d21bf1d8..6b5b5df9e2a 100644 --- a/compiler/rustc_interface/src/passes.rs +++ b/compiler/rustc_interface/src/passes.rs @@ -207,10 +207,7 @@ pub fn register_plugins<'a>( }); } - let mut lint_store = rustc_lint::new_lint_store( - sess.opts.unstable_opts.no_interleave_lints, - sess.enable_internal_lints(), - ); + let mut lint_store = rustc_lint::new_lint_store(sess.enable_internal_lints()); register_lints(sess, &mut lint_store); let registrars = diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index a03e7b0dae5..a6205f4d3a5 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -666,7 +666,6 @@ fn test_unstable_options_tracking_hash() { untracked!(mir_pretty_relative_line_numbers, true); untracked!(nll_facts, true); untracked!(no_analysis, true); - untracked!(no_interleave_lints, true); untracked!(no_leak_check, true); untracked!(no_parallel_llvm, true); untracked!(parse_only, true); diff --git a/compiler/rustc_lexer/Cargo.toml b/compiler/rustc_lexer/Cargo.toml index ad685c2ad19..23294dc2e1b 100644 --- a/compiler/rustc_lexer/Cargo.toml +++ b/compiler/rustc_lexer/Cargo.toml @@ -19,4 +19,4 @@ unicode-xid = "0.2.0" unic-emoji-char = "0.9.0" [dev-dependencies] -expect-test = "1.0" +expect-test = "1.4.0" diff --git a/compiler/rustc_lint/src/early.rs b/compiler/rustc_lint/src/early.rs index a7a4d0ca527..215df567e0e 100644 --- a/compiler/rustc_lint/src/early.rs +++ b/compiler/rustc_lint/src/early.rs @@ -25,8 +25,6 @@ use rustc_session::Session; use rustc_span::symbol::Ident; use rustc_span::Span; -use std::slice; - macro_rules! run_early_pass { ($cx:expr, $f:ident, $($args:expr),*) => ({ $cx.pass.$f(&$cx.context, $($args),*); }) } @@ -300,20 +298,14 @@ impl LintPass for EarlyLintPassObjects<'_> { } } -macro_rules! expand_early_lint_pass_impl_methods { - ([$($(#[$attr:meta])* fn $name:ident($($param:ident: $arg:ty),*);)*]) => ( - $(fn $name(&mut self, context: &EarlyContext<'_>, $($param: $arg),*) { - for obj in self.lints.iter_mut() { - obj.$name(context, $($param),*); - } - })* - ) -} - macro_rules! early_lint_pass_impl { - ([], [$($methods:tt)*]) => ( + ([], [$($(#[$attr:meta])* fn $name:ident($($param:ident: $arg:ty),*);)*]) => ( impl EarlyLintPass for EarlyLintPassObjects<'_> { - expand_early_lint_pass_impl_methods!([$($methods)*]); + $(fn $name(&mut self, context: &EarlyContext<'_>, $($param: $arg),*) { + for obj in self.lints.iter_mut() { + obj.$name(context, $($param),*); + } + })* } ) } @@ -371,87 +363,36 @@ impl<'a> EarlyCheckNode<'a> for (ast::NodeId, &'a [ast::Attribute], &'a [P<ast:: } } -fn early_lint_node<'a>( - sess: &Session, - warn_about_weird_lints: bool, - lint_store: &LintStore, - registered_tools: &RegisteredTools, - buffered: LintBuffer, - pass: impl EarlyLintPass, - check_node: impl EarlyCheckNode<'a>, -) -> LintBuffer { - let mut cx = EarlyContextAndPass { - context: EarlyContext::new( - sess, - warn_about_weird_lints, - lint_store, - registered_tools, - buffered, - ), - pass, - }; - - cx.with_lint_attrs(check_node.id(), check_node.attrs(), |cx| check_node.check(cx)); - cx.context.buffered -} - pub fn check_ast_node<'a>( sess: &Session, pre_expansion: bool, lint_store: &LintStore, registered_tools: &RegisteredTools, lint_buffer: Option<LintBuffer>, - builtin_lints: impl EarlyLintPass, + builtin_lints: impl EarlyLintPass + 'static, check_node: impl EarlyCheckNode<'a>, ) { let passes = if pre_expansion { &lint_store.pre_expansion_passes } else { &lint_store.early_passes }; let mut passes: Vec<_> = passes.iter().map(|p| (p)()).collect(); - let mut buffered = lint_buffer.unwrap_or_default(); - - if sess.opts.unstable_opts.no_interleave_lints { - for (i, pass) in passes.iter_mut().enumerate() { - buffered = - sess.prof.verbose_generic_activity_with_arg("run_lint", pass.name()).run(|| { - early_lint_node( - sess, - !pre_expansion && i == 0, - lint_store, - registered_tools, - buffered, - EarlyLintPassObjects { lints: slice::from_mut(pass) }, - check_node, - ) - }); - } - } else { - buffered = early_lint_node( + passes.push(Box::new(builtin_lints)); + + let mut cx = EarlyContextAndPass { + context: EarlyContext::new( sess, !pre_expansion, lint_store, registered_tools, - buffered, - builtin_lints, - check_node, - ); - - if !passes.is_empty() { - buffered = early_lint_node( - sess, - false, - lint_store, - registered_tools, - buffered, - EarlyLintPassObjects { lints: &mut passes[..] }, - check_node, - ); - } - } + lint_buffer.unwrap_or_default(), + ), + pass: EarlyLintPassObjects { lints: &mut passes[..] }, + }; + cx.with_lint_attrs(check_node.id(), check_node.attrs(), |cx| check_node.check(cx)); // All of the buffered lints should have been emitted at this point. // If not, that means that we somehow buffered a lint for a node id // that was not lint-checked (perhaps it doesn't exist?). This is a bug. - for (id, lints) in buffered.map { + for (id, lints) in cx.context.buffered.map { for early_lint in lints { sess.delay_span_bug( early_lint.span, diff --git a/compiler/rustc_lint/src/internal.rs b/compiler/rustc_lint/src/internal.rs index a6c7e819482..4f92661dbd3 100644 --- a/compiler/rustc_lint/src/internal.rs +++ b/compiler/rustc_lint/src/internal.rs @@ -117,7 +117,7 @@ impl<'tcx> LateLintPass<'tcx> for TyTyKind { fn check_path( &mut self, cx: &LateContext<'tcx>, - path: &'tcx rustc_hir::Path<'tcx>, + path: &rustc_hir::Path<'tcx>, _: rustc_hir::HirId, ) { if let Some(segment) = path.segments.iter().nth_back(1) diff --git a/compiler/rustc_lint/src/late.rs b/compiler/rustc_lint/src/late.rs index f484e31ba15..e1aedc26d1b 100644 --- a/compiler/rustc_lint/src/late.rs +++ b/compiler/rustc_lint/src/late.rs @@ -28,7 +28,6 @@ use rustc_span::Span; use std::any::Any; use std::cell::Cell; -use std::slice; /// Extract the `LintStore` from the query context. /// This function exists because we've erased `LintStore` as `dyn Any` in the context. @@ -292,7 +291,7 @@ impl<'tcx, T: LateLintPass<'tcx>> hir_visit::Visitor<'tcx> for LateContextAndPas hir_visit::walk_lifetime(self, lt); } - fn visit_path(&mut self, p: &'tcx hir::Path<'tcx>, id: hir::HirId) { + fn visit_path(&mut self, p: &hir::Path<'tcx>, id: hir::HirId) { lint_callback!(self, check_path, p, id); hir_visit::walk_path(self, p); } @@ -313,45 +312,42 @@ impl LintPass for LateLintPassObjects<'_, '_> { } } -macro_rules! expand_late_lint_pass_impl_methods { - ([$hir:tt], [$($(#[$attr:meta])* fn $name:ident($($param:ident: $arg:ty),*);)*]) => ( - $(fn $name(&mut self, context: &LateContext<$hir>, $($param: $arg),*) { - for obj in self.lints.iter_mut() { - obj.$name(context, $($param),*); - } - })* - ) -} - macro_rules! late_lint_pass_impl { - ([], [$hir:tt], $methods:tt) => { + ([], [$hir:tt], [$($(#[$attr:meta])* fn $name:ident($($param:ident: $arg:ty),*);)*]) => { impl<$hir> LateLintPass<$hir> for LateLintPassObjects<'_, $hir> { - expand_late_lint_pass_impl_methods!([$hir], $methods); + $(fn $name(&mut self, context: &LateContext<$hir>, $($param: $arg),*) { + for obj in self.lints.iter_mut() { + obj.$name(context, $($param),*); + } + })* } }; } crate::late_lint_methods!(late_lint_pass_impl, [], ['tcx]); -fn late_lint_mod_pass<'tcx, T: LateLintPass<'tcx>>( +pub(super) fn late_lint_mod<'tcx, T: LateLintPass<'tcx> + 'tcx>( tcx: TyCtxt<'tcx>, module_def_id: LocalDefId, - pass: T, + builtin_lints: T, ) { - let effective_visibilities = &tcx.effective_visibilities(()); - let context = LateContext { tcx, enclosing_body: None, cached_typeck_results: Cell::new(None), param_env: ty::ParamEnv::empty(), - effective_visibilities, + effective_visibilities: &tcx.effective_visibilities(()), lint_store: unerased_lint_store(tcx), last_node_with_lint_attrs: tcx.hir().local_def_id_to_hir_id(module_def_id), generics: None, only_module: true, }; + let mut passes: Vec<_> = + unerased_lint_store(tcx).late_module_passes.iter().map(|pass| (pass)(tcx)).collect(); + passes.push(Box::new(builtin_lints)); + let pass = LateLintPassObjects { lints: &mut passes[..] }; + let mut cx = LateContextAndPass { context, pass }; let (module, _span, hir_id) = tcx.hir().get_module(module_def_id); @@ -365,46 +361,29 @@ fn late_lint_mod_pass<'tcx, T: LateLintPass<'tcx>>( } } -pub fn late_lint_mod<'tcx, T: LateLintPass<'tcx>>( - tcx: TyCtxt<'tcx>, - module_def_id: LocalDefId, - builtin_lints: T, -) { - if tcx.sess.opts.unstable_opts.no_interleave_lints { - // These passes runs in late_lint_crate with -Z no_interleave_lints - return; - } - - late_lint_mod_pass(tcx, module_def_id, builtin_lints); - - let mut passes: Vec<_> = - unerased_lint_store(tcx).late_module_passes.iter().map(|pass| (pass)(tcx)).collect(); - - if !passes.is_empty() { - late_lint_mod_pass(tcx, module_def_id, LateLintPassObjects { lints: &mut passes[..] }); - } -} - -fn late_lint_pass_crate<'tcx, T: LateLintPass<'tcx>>(tcx: TyCtxt<'tcx>, pass: T) { - let effective_visibilities = &tcx.effective_visibilities(()); - +fn late_lint_crate<'tcx, T: LateLintPass<'tcx> + 'tcx>(tcx: TyCtxt<'tcx>, builtin_lints: T) { let context = LateContext { tcx, enclosing_body: None, cached_typeck_results: Cell::new(None), param_env: ty::ParamEnv::empty(), - effective_visibilities, + effective_visibilities: &tcx.effective_visibilities(()), lint_store: unerased_lint_store(tcx), last_node_with_lint_attrs: hir::CRATE_HIR_ID, generics: None, only_module: false, }; + let mut passes = + unerased_lint_store(tcx).late_passes.iter().map(|p| (p)(tcx)).collect::<Vec<_>>(); + passes.push(Box::new(builtin_lints)); + let pass = LateLintPassObjects { lints: &mut passes[..] }; + let mut cx = LateContextAndPass { context, pass }; // Visit the whole crate. cx.with_lint_attrs(hir::CRATE_HIR_ID, |cx| { - // since the root module isn't visited as an item (because it isn't an + // Since the root module isn't visited as an item (because it isn't an // item), warn for it here. lint_callback!(cx, check_crate,); tcx.hir().walk_toplevel_module(cx); @@ -413,41 +392,8 @@ fn late_lint_pass_crate<'tcx, T: LateLintPass<'tcx>>(tcx: TyCtxt<'tcx>, pass: T) }) } -fn late_lint_crate<'tcx, T: LateLintPass<'tcx>>(tcx: TyCtxt<'tcx>, builtin_lints: T) { - let mut passes = - unerased_lint_store(tcx).late_passes.iter().map(|p| (p)(tcx)).collect::<Vec<_>>(); - - if !tcx.sess.opts.unstable_opts.no_interleave_lints { - if !passes.is_empty() { - late_lint_pass_crate(tcx, LateLintPassObjects { lints: &mut passes[..] }); - } - - late_lint_pass_crate(tcx, builtin_lints); - } else { - for pass in &mut passes { - tcx.sess.prof.verbose_generic_activity_with_arg("run_late_lint", pass.name()).run( - || { - late_lint_pass_crate(tcx, LateLintPassObjects { lints: slice::from_mut(pass) }); - }, - ); - } - - let mut passes: Vec<_> = - unerased_lint_store(tcx).late_module_passes.iter().map(|pass| (pass)(tcx)).collect(); - - for pass in &mut passes { - tcx.sess - .prof - .verbose_generic_activity_with_arg("run_late_module_lint", pass.name()) - .run(|| { - late_lint_pass_crate(tcx, LateLintPassObjects { lints: slice::from_mut(pass) }); - }); - } - } -} - /// Performs lint checking on a crate. -pub fn check_crate<'tcx, T: LateLintPass<'tcx>>( +pub fn check_crate<'tcx, T: LateLintPass<'tcx> + 'tcx>( tcx: TyCtxt<'tcx>, builtin_lints: impl FnOnce() -> T + Send, ) { diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs index b6027476adf..10bae36e0fd 100644 --- a/compiler/rustc_lint/src/lib.rs +++ b/compiler/rustc_lint/src/lib.rs @@ -127,132 +127,116 @@ fn lint_mod(tcx: TyCtxt<'_>, module_def_id: LocalDefId) { late::late_lint_mod(tcx, module_def_id, BuiltinCombinedModuleLateLintPass::new()); } -macro_rules! pre_expansion_lint_passes { - ($macro:path, $args:tt) => { - $macro!($args, [KeywordIdents: KeywordIdents,]); - }; -} - -macro_rules! early_lint_passes { - ($macro:path, $args:tt) => { - $macro!( - $args, - [ - UnusedParens: UnusedParens, - UnusedBraces: UnusedBraces, - UnusedImportBraces: UnusedImportBraces, - UnsafeCode: UnsafeCode, - SpecialModuleName: SpecialModuleName, - AnonymousParameters: AnonymousParameters, - EllipsisInclusiveRangePatterns: EllipsisInclusiveRangePatterns::default(), - NonCamelCaseTypes: NonCamelCaseTypes, - DeprecatedAttr: DeprecatedAttr::new(), - WhileTrue: WhileTrue, - NonAsciiIdents: NonAsciiIdents, - HiddenUnicodeCodepoints: HiddenUnicodeCodepoints, - IncompleteFeatures: IncompleteFeatures, - RedundantSemicolons: RedundantSemicolons, - UnusedDocComment: UnusedDocComment, - UnexpectedCfgs: UnexpectedCfgs, - ] - ); - }; -} - -macro_rules! declare_combined_early_pass { - ([$name:ident], $passes:tt) => ( - early_lint_methods!(declare_combined_early_lint_pass, [pub $name, $passes]); - ) -} - -pre_expansion_lint_passes!(declare_combined_early_pass, [BuiltinCombinedPreExpansionLintPass]); -early_lint_passes!(declare_combined_early_pass, [BuiltinCombinedEarlyLintPass]); - -macro_rules! late_lint_passes { - ($macro:path, $args:tt) => { - $macro!( - $args, - [ - // Tracks state across modules - UnnameableTestItems: UnnameableTestItems::new(), - // Tracks attributes of parents - MissingDoc: MissingDoc::new(), - // Builds a global list of all impls of `Debug`. - // FIXME: Turn the computation of types which implement Debug into a query - // and change this to a module lint pass - MissingDebugImplementations: MissingDebugImplementations::default(), - // Keeps a global list of foreign declarations. - ClashingExternDeclarations: ClashingExternDeclarations::new(), - ] - ); - }; -} - -macro_rules! late_lint_mod_passes { - ($macro:path, $args:tt) => { - $macro!( - $args, - [ - ForLoopsOverFallibles: ForLoopsOverFallibles, - DerefIntoDynSupertrait: DerefIntoDynSupertrait, - HardwiredLints: HardwiredLints, - ImproperCTypesDeclarations: ImproperCTypesDeclarations, - ImproperCTypesDefinitions: ImproperCTypesDefinitions, - VariantSizeDifferences: VariantSizeDifferences, - BoxPointers: BoxPointers, - PathStatements: PathStatements, - LetUnderscore: LetUnderscore, - // Depends on referenced function signatures in expressions - UnusedResults: UnusedResults, - NonUpperCaseGlobals: NonUpperCaseGlobals, - NonShorthandFieldPatterns: NonShorthandFieldPatterns, - UnusedAllocation: UnusedAllocation, - // Depends on types used in type definitions - MissingCopyImplementations: MissingCopyImplementations, - // Depends on referenced function signatures in expressions - MutableTransmutes: MutableTransmutes, - TypeAliasBounds: TypeAliasBounds, - TrivialConstraints: TrivialConstraints, - TypeLimits: TypeLimits::new(), - NonSnakeCase: NonSnakeCase, - InvalidNoMangleItems: InvalidNoMangleItems, - // Depends on effective visibilities - UnreachablePub: UnreachablePub, - ExplicitOutlivesRequirements: ExplicitOutlivesRequirements, - InvalidValue: InvalidValue, - DerefNullPtr: DerefNullPtr, - // May Depend on constants elsewhere - UnusedBrokenConst: UnusedBrokenConst, - UnstableFeatures: UnstableFeatures, - ArrayIntoIter: ArrayIntoIter::default(), - DropTraitConstraints: DropTraitConstraints, - TemporaryCStringAsPtr: TemporaryCStringAsPtr, - NonPanicFmt: NonPanicFmt, - NoopMethodCall: NoopMethodCall, - EnumIntrinsicsNonEnums: EnumIntrinsicsNonEnums, - InvalidAtomicOrdering: InvalidAtomicOrdering, - NamedAsmLabels: NamedAsmLabels, - OpaqueHiddenInferredBound: OpaqueHiddenInferredBound, - ] - ); - }; -} - -macro_rules! declare_combined_late_pass { - ([$v:vis $name:ident], $passes:tt) => ( - late_lint_methods!(declare_combined_late_lint_pass, [$v $name, $passes], ['tcx]); - ) -} +early_lint_methods!( + declare_combined_early_lint_pass, + [ + pub BuiltinCombinedPreExpansionLintPass, + [ + KeywordIdents: KeywordIdents, + ] + ] +); + +early_lint_methods!( + declare_combined_early_lint_pass, + [ + pub BuiltinCombinedEarlyLintPass, + [ + UnusedParens: UnusedParens, + UnusedBraces: UnusedBraces, + UnusedImportBraces: UnusedImportBraces, + UnsafeCode: UnsafeCode, + SpecialModuleName: SpecialModuleName, + AnonymousParameters: AnonymousParameters, + EllipsisInclusiveRangePatterns: EllipsisInclusiveRangePatterns::default(), + NonCamelCaseTypes: NonCamelCaseTypes, + DeprecatedAttr: DeprecatedAttr::new(), + WhileTrue: WhileTrue, + NonAsciiIdents: NonAsciiIdents, + HiddenUnicodeCodepoints: HiddenUnicodeCodepoints, + IncompleteFeatures: IncompleteFeatures, + RedundantSemicolons: RedundantSemicolons, + UnusedDocComment: UnusedDocComment, + UnexpectedCfgs: UnexpectedCfgs, + ] + ] +); // FIXME: Make a separate lint type which do not require typeck tables -late_lint_passes!(declare_combined_late_pass, [pub BuiltinCombinedLateLintPass]); - -late_lint_mod_passes!(declare_combined_late_pass, [BuiltinCombinedModuleLateLintPass]); - -pub fn new_lint_store(no_interleave_lints: bool, internal_lints: bool) -> LintStore { +late_lint_methods!( + declare_combined_late_lint_pass, + [ + pub BuiltinCombinedLateLintPass, + [ + // Tracks state across modules + UnnameableTestItems: UnnameableTestItems::new(), + // Tracks attributes of parents + MissingDoc: MissingDoc::new(), + // Builds a global list of all impls of `Debug`. + // FIXME: Turn the computation of types which implement Debug into a query + // and change this to a module lint pass + MissingDebugImplementations: MissingDebugImplementations::default(), + // Keeps a global list of foreign declarations. + ClashingExternDeclarations: ClashingExternDeclarations::new(), + ] + ], + ['tcx] +); + +late_lint_methods!( + declare_combined_late_lint_pass, + [ + BuiltinCombinedModuleLateLintPass, + [ + ForLoopsOverFallibles: ForLoopsOverFallibles, + DerefIntoDynSupertrait: DerefIntoDynSupertrait, + HardwiredLints: HardwiredLints, + ImproperCTypesDeclarations: ImproperCTypesDeclarations, + ImproperCTypesDefinitions: ImproperCTypesDefinitions, + VariantSizeDifferences: VariantSizeDifferences, + BoxPointers: BoxPointers, + PathStatements: PathStatements, + LetUnderscore: LetUnderscore, + // Depends on referenced function signatures in expressions + UnusedResults: UnusedResults, + NonUpperCaseGlobals: NonUpperCaseGlobals, + NonShorthandFieldPatterns: NonShorthandFieldPatterns, + UnusedAllocation: UnusedAllocation, + // Depends on types used in type definitions + MissingCopyImplementations: MissingCopyImplementations, + // Depends on referenced function signatures in expressions + MutableTransmutes: MutableTransmutes, + TypeAliasBounds: TypeAliasBounds, + TrivialConstraints: TrivialConstraints, + TypeLimits: TypeLimits::new(), + NonSnakeCase: NonSnakeCase, + InvalidNoMangleItems: InvalidNoMangleItems, + // Depends on effective visibilities + UnreachablePub: UnreachablePub, + ExplicitOutlivesRequirements: ExplicitOutlivesRequirements, + InvalidValue: InvalidValue, + DerefNullPtr: DerefNullPtr, + // May Depend on constants elsewhere + UnusedBrokenConst: UnusedBrokenConst, + UnstableFeatures: UnstableFeatures, + ArrayIntoIter: ArrayIntoIter::default(), + DropTraitConstraints: DropTraitConstraints, + TemporaryCStringAsPtr: TemporaryCStringAsPtr, + NonPanicFmt: NonPanicFmt, + NoopMethodCall: NoopMethodCall, + EnumIntrinsicsNonEnums: EnumIntrinsicsNonEnums, + InvalidAtomicOrdering: InvalidAtomicOrdering, + NamedAsmLabels: NamedAsmLabels, + OpaqueHiddenInferredBound: OpaqueHiddenInferredBound, + ] + ], + ['tcx] +); + +pub fn new_lint_store(internal_lints: bool) -> LintStore { let mut lint_store = LintStore::new(); - register_builtins(&mut lint_store, no_interleave_lints); + register_builtins(&mut lint_store); if internal_lints { register_internals(&mut lint_store); } @@ -263,54 +247,17 @@ pub fn new_lint_store(no_interleave_lints: bool, internal_lints: bool) -> LintSt /// Tell the `LintStore` about all the built-in lints (the ones /// defined in this crate and the ones defined in /// `rustc_session::lint::builtin`). -fn register_builtins(store: &mut LintStore, no_interleave_lints: bool) { +fn register_builtins(store: &mut LintStore) { macro_rules! add_lint_group { ($name:expr, $($lint:ident),*) => ( store.register_group(false, $name, None, vec![$(LintId::of($lint)),*]); ) } - macro_rules! register_early_pass { - ($method:ident, $ty:ident, $constructor:expr) => { - store.register_lints(&$ty::get_lints()); - store.$method(|| Box::new($constructor)); - }; - } - - macro_rules! register_late_pass { - ($method:ident, $ty:ident, $constructor:expr) => { - store.register_lints(&$ty::get_lints()); - store.$method(|_| Box::new($constructor)); - }; - } - - macro_rules! register_early_passes { - ($method:ident, [$($passes:ident: $constructor:expr,)*]) => ( - $( - register_early_pass!($method, $passes, $constructor); - )* - ) - } - - macro_rules! register_late_passes { - ($method:ident, [$($passes:ident: $constructor:expr,)*]) => ( - $( - register_late_pass!($method, $passes, $constructor); - )* - ) - } - - if no_interleave_lints { - pre_expansion_lint_passes!(register_early_passes, register_pre_expansion_pass); - early_lint_passes!(register_early_passes, register_early_pass); - late_lint_passes!(register_late_passes, register_late_pass); - late_lint_mod_passes!(register_late_passes, register_late_mod_pass); - } else { - store.register_lints(&BuiltinCombinedPreExpansionLintPass::get_lints()); - store.register_lints(&BuiltinCombinedEarlyLintPass::get_lints()); - store.register_lints(&BuiltinCombinedModuleLateLintPass::get_lints()); - store.register_lints(&BuiltinCombinedLateLintPass::get_lints()); - } + store.register_lints(&BuiltinCombinedPreExpansionLintPass::get_lints()); + store.register_lints(&BuiltinCombinedEarlyLintPass::get_lints()); + store.register_lints(&BuiltinCombinedModuleLateLintPass::get_lints()); + store.register_lints(&BuiltinCombinedLateLintPass::get_lints()); add_lint_group!( "nonstandard_style", diff --git a/compiler/rustc_lint/src/passes.rs b/compiler/rustc_lint/src/passes.rs index 1c6a057d1a8..2f53986139e 100644 --- a/compiler/rustc_lint/src/passes.rs +++ b/compiler/rustc_lint/src/passes.rs @@ -1,7 +1,6 @@ use crate::context::{EarlyContext, LateContext}; use rustc_ast as ast; -use rustc_data_structures::sync; use rustc_hir as hir; use rustc_session::lint::builtin::HardwiredLints; use rustc_session::lint::LintPass; @@ -44,7 +43,7 @@ macro_rules! late_lint_methods { fn check_struct_def(a: &$hir hir::VariantData<$hir>); fn check_field_def(a: &$hir hir::FieldDef<$hir>); fn check_variant(a: &$hir hir::Variant<$hir>); - fn check_path(a: &$hir hir::Path<$hir>, b: hir::HirId); + fn check_path(a: &hir::Path<$hir>, b: hir::HirId); fn check_attribute(a: &$hir ast::Attribute); /// Called when entering a syntax node that can have lint attributes such @@ -66,16 +65,10 @@ macro_rules! late_lint_methods { // FIXME: eliminate the duplication with `Visitor`. But this also // contains a few lint-specific methods with no equivalent in `Visitor`. -macro_rules! expand_lint_pass_methods { - ($context:ty, [$($(#[$attr:meta])* fn $name:ident($($param:ident: $arg:ty),*);)*]) => ( - $(#[inline(always)] fn $name(&mut self, _: $context, $(_: $arg),*) {})* - ) -} - macro_rules! declare_late_lint_pass { - ([], [$hir:tt], [$($methods:tt)*]) => ( + ([], [$hir:tt], [$($(#[$attr:meta])* fn $name:ident($($param:ident: $arg:ty),*);)*]) => ( pub trait LateLintPass<$hir>: LintPass { - expand_lint_pass_methods!(&LateContext<$hir>, [$($methods)*]); + $(#[inline(always)] fn $name(&mut self, _: &LateContext<$hir>, $(_: $arg),*) {})* } ) } @@ -175,16 +168,10 @@ macro_rules! early_lint_methods { ) } -macro_rules! expand_early_lint_pass_methods { - ($context:ty, [$($(#[$attr:meta])* fn $name:ident($($param:ident: $arg:ty),*);)*]) => ( - $(#[inline(always)] fn $name(&mut self, _: $context, $(_: $arg),*) {})* - ) -} - macro_rules! declare_early_lint_pass { - ([], [$($methods:tt)*]) => ( + ([], [$($(#[$attr:meta])* fn $name:ident($($param:ident: $arg:ty),*);)*]) => ( pub trait EarlyLintPass: LintPass { - expand_early_lint_pass_methods!(&EarlyContext<'_>, [$($methods)*]); + $(#[inline(always)] fn $name(&mut self, _: &EarlyContext<'_>, $(_: $arg),*) {})* } ) } @@ -243,5 +230,5 @@ macro_rules! declare_combined_early_lint_pass { } /// A lint pass boxed up as a trait object. -pub type EarlyLintPassObject = Box<dyn EarlyLintPass + sync::Send + 'static>; -pub type LateLintPassObject<'tcx> = Box<dyn LateLintPass<'tcx> + sync::Send + 'tcx>; +pub type EarlyLintPassObject = Box<dyn EarlyLintPass + 'static>; +pub type LateLintPassObject<'tcx> = Box<dyn LateLintPass<'tcx> + 'tcx>; diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs index 88ad4c67d93..a7836ea8e7a 100644 --- a/compiler/rustc_lint/src/unused.rs +++ b/compiler/rustc_lint/src/unused.rs @@ -1264,7 +1264,7 @@ impl UnusedImportBraces { // Trigger the lint if the nested item is a non-self single item let node_name = match items[0].0.kind { - ast::UseTreeKind::Simple(rename, ..) => { + ast::UseTreeKind::Simple(rename) => { let orig_ident = items[0].0.prefix.segments.last().unwrap().ident; if orig_ident.name == kw::SelfLower { return; diff --git a/compiler/rustc_llvm/build.rs b/compiler/rustc_llvm/build.rs index d35e4191cc0..79f06ac146c 100644 --- a/compiler/rustc_llvm/build.rs +++ b/compiler/rustc_llvm/build.rs @@ -222,6 +222,7 @@ fn main() { .file("llvm-wrapper/RustWrapper.cpp") .file("llvm-wrapper/ArchiveWrapper.cpp") .file("llvm-wrapper/CoverageMappingWrapper.cpp") + .file("llvm-wrapper/SymbolWrapper.cpp") .file("llvm-wrapper/Linker.cpp") .cpp(true) .cpp_link_stdlib(None) // we handle this below diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp index 216c35d6da0..792d921c6a4 100644 --- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp @@ -1967,3 +1967,7 @@ extern "C" int32_t LLVMRustGetElementTypeArgIndex(LLVMValueRef CallSite) { #endif return -1; } + +extern "C" bool LLVMRustIsBitcode(char *ptr, size_t len) { + return identify_magic(StringRef(ptr, len)) == file_magic::bitcode; +} diff --git a/compiler/rustc_llvm/llvm-wrapper/SymbolWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/SymbolWrapper.cpp new file mode 100644 index 00000000000..974207e918c --- /dev/null +++ b/compiler/rustc_llvm/llvm-wrapper/SymbolWrapper.cpp @@ -0,0 +1,96 @@ +// Derived from code in LLVM, which is: +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception + +// Derived from: +// * https://github.com/llvm/llvm-project/blob/8ef3e895ad8ab1724e2b87cabad1dacdc7a397a3/llvm/include/llvm/Object/ArchiveWriter.h +// * https://github.com/llvm/llvm-project/blob/8ef3e895ad8ab1724e2b87cabad1dacdc7a397a3/llvm/lib/Object/ArchiveWriter.cpp + +#include "llvm/IR/LLVMContext.h" +#include "llvm/Object/ObjectFile.h" +#include "llvm/ADT/Optional.h" + +using namespace llvm; +using namespace llvm::sys; +using namespace llvm::object; + +static bool isArchiveSymbol(const object::BasicSymbolRef &S) { + Expected<uint32_t> SymFlagsOrErr = S.getFlags(); + if (!SymFlagsOrErr) + // FIXME: Actually report errors helpfully. + report_fatal_error(SymFlagsOrErr.takeError()); + if (*SymFlagsOrErr & object::SymbolRef::SF_FormatSpecific) + return false; + if (!(*SymFlagsOrErr & object::SymbolRef::SF_Global)) + return false; + if (*SymFlagsOrErr & object::SymbolRef::SF_Undefined) + return false; + return true; +} + +typedef void *(*LLVMRustGetSymbolsCallback)(void *, const char *); +typedef void *(*LLVMRustGetSymbolsErrorCallback)(const char *); + +// Note: This is implemented in C++ instead of using the C api from Rust as IRObjectFile doesn't +// implement getSymbolName, only printSymbolName, which is inaccessible from the C api. +extern "C" void *LLVMRustGetSymbols( + char *BufPtr, size_t BufLen, void *State, LLVMRustGetSymbolsCallback Callback, + LLVMRustGetSymbolsErrorCallback ErrorCallback) { + std::unique_ptr<MemoryBuffer> Buf = + MemoryBuffer::getMemBuffer(StringRef(BufPtr, BufLen), StringRef("LLVMRustGetSymbolsObject"), + false); + SmallString<0> SymNameBuf; + raw_svector_ostream SymName(SymNameBuf); + + // In the scenario when LLVMContext is populated SymbolicFile will contain a + // reference to it, thus SymbolicFile should be destroyed first. + LLVMContext Context; + std::unique_ptr<object::SymbolicFile> Obj; + + const file_magic Type = identify_magic(Buf->getBuffer()); + if (!object::SymbolicFile::isSymbolicFile(Type, &Context)) { + return 0; + } + + if (Type == file_magic::bitcode) { + auto ObjOrErr = object::SymbolicFile::createSymbolicFile( + Buf->getMemBufferRef(), file_magic::bitcode, &Context); + if (!ObjOrErr) { + Error E = ObjOrErr.takeError(); + SmallString<0> ErrorBuf; + raw_svector_ostream Error(ErrorBuf); + Error << E << '\0'; + return ErrorCallback(Error.str().data()); + } + Obj = std::move(*ObjOrErr); + } else { + auto ObjOrErr = object::SymbolicFile::createSymbolicFile(Buf->getMemBufferRef()); + if (!ObjOrErr) { + Error E = ObjOrErr.takeError(); + SmallString<0> ErrorBuf; + raw_svector_ostream Error(ErrorBuf); + Error << E << '\0'; + return ErrorCallback(Error.str().data()); + } + Obj = std::move(*ObjOrErr); + } + + + for (const object::BasicSymbolRef &S : Obj->symbols()) { + if (!isArchiveSymbol(S)) + continue; + if (Error E = S.printName(SymName)) { + SmallString<0> ErrorBuf; + raw_svector_ostream Error(ErrorBuf); + Error << E << '\0'; + return ErrorCallback(Error.str().data()); + } + SymName << '\0'; + if (void *E = Callback(State, SymNameBuf.str().data())) { + return E; + } + SymNameBuf.clear(); + } + return 0; +} diff --git a/compiler/rustc_macros/src/diagnostics/diagnostic.rs b/compiler/rustc_macros/src/diagnostics/diagnostic.rs index be9821c00f5..684835d8c5c 100644 --- a/compiler/rustc_macros/src/diagnostics/diagnostic.rs +++ b/compiler/rustc_macros/src/diagnostics/diagnostic.rs @@ -29,8 +29,8 @@ impl<'a> DiagnosticDerive<'a> { let DiagnosticDerive { mut structure, mut builder } = self; let implementation = builder.each_variant(&mut structure, |mut builder, variant| { - let preamble = builder.preamble(&variant); - let body = builder.body(&variant); + let preamble = builder.preamble(variant); + let body = builder.body(variant); let diag = &builder.parent.diag; let DiagnosticDeriveKind::Diagnostic { handler } = &builder.parent.kind else { @@ -39,7 +39,7 @@ impl<'a> DiagnosticDerive<'a> { let init = match builder.slug.value_ref() { None => { span_err(builder.span, "diagnostic slug not specified") - .help(&format!( + .help(format!( "specify the slug as the first argument to the `#[diag(...)]` \ attribute, such as `#[diag(hir_analysis_example_error)]`", )) @@ -48,10 +48,10 @@ impl<'a> DiagnosticDerive<'a> { } Some(slug) if let Some( Mismatch { slug_name, crate_name, slug_prefix }) = Mismatch::check(slug) => { span_err(slug.span().unwrap(), "diagnostic slug and crate name do not match") - .note(&format!( + .note(format!( "slug is `{slug_name}` but the crate name is `{crate_name}`" )) - .help(&format!( + .help(format!( "expected a slug starting with `{slug_prefix}_...`" )) .emit(); @@ -113,8 +113,8 @@ impl<'a> LintDiagnosticDerive<'a> { let LintDiagnosticDerive { mut structure, mut builder } = self; let implementation = builder.each_variant(&mut structure, |mut builder, variant| { - let preamble = builder.preamble(&variant); - let body = builder.body(&variant); + let preamble = builder.preamble(variant); + let body = builder.body(variant); let diag = &builder.parent.diag; let formatting_init = &builder.formatting_init; @@ -128,28 +128,28 @@ impl<'a> LintDiagnosticDerive<'a> { let msg = builder.each_variant(&mut structure, |mut builder, variant| { // Collect the slug by generating the preamble. - let _ = builder.preamble(&variant); + let _ = builder.preamble(variant); match builder.slug.value_ref() { None => { span_err(builder.span, "diagnostic slug not specified") - .help(&format!( + .help(format!( "specify the slug as the first argument to the attribute, such as \ `#[diag(compiletest_example)]`", )) .emit(); - return DiagnosticDeriveError::ErrorHandled.to_compile_error(); + DiagnosticDeriveError::ErrorHandled.to_compile_error() } Some(slug) if let Some( Mismatch { slug_name, crate_name, slug_prefix }) = Mismatch::check(slug) => { span_err(slug.span().unwrap(), "diagnostic slug and crate name do not match") - .note(&format!( + .note(format!( "slug is `{slug_name}` but the crate name is `{crate_name}`" )) - .help(&format!( + .help(format!( "expected a slug starting with `{slug_prefix}_...`" )) .emit(); - return DiagnosticDeriveError::ErrorHandled.to_compile_error(); + DiagnosticDeriveError::ErrorHandled.to_compile_error() } Some(slug) => { quote! { diff --git a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs index 3ea83fd09c7..9f2ac5112f1 100644 --- a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs +++ b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs @@ -100,7 +100,7 @@ impl DiagnosticDeriveBuilder { _ => variant.ast().ident.span().unwrap(), }; let builder = DiagnosticDeriveVariantBuilder { - parent: &self, + parent: self, span, field_map: build_field_mapping(variant), formatting_init: TokenStream::new(), @@ -211,7 +211,7 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { nested_iter.next(); } Some(NestedMeta::Meta(Meta::NameValue { .. })) => {} - Some(nested_attr) => throw_invalid_nested_attr!(attr, &nested_attr, |diag| diag + Some(nested_attr) => throw_invalid_nested_attr!(attr, nested_attr, |diag| diag .help("a diagnostic slug is required as the first argument")), None => throw_invalid_attr!(attr, &meta, |diag| diag .help("a diagnostic slug is required as the first argument")), @@ -227,13 +227,13 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { .. })) => (value, path), NestedMeta::Meta(Meta::Path(_)) => { - invalid_nested_attr(attr, &nested_attr) + invalid_nested_attr(attr, nested_attr) .help("diagnostic slug must be the first argument") .emit(); continue; } _ => { - invalid_nested_attr(attr, &nested_attr).emit(); + invalid_nested_attr(attr, nested_attr).emit(); continue; } }; @@ -251,7 +251,7 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { #diag.code(rustc_errors::DiagnosticId::Error(#code.to_string())); }); } - _ => invalid_nested_attr(attr, &nested_attr) + _ => invalid_nested_attr(attr, nested_attr) .help("only `code` is a valid nested attributes following the slug") .emit(), } @@ -427,9 +427,9 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { Ok(self.add_spanned_subdiagnostic(binding, &fn_ident, slug)) } SubdiagnosticKind::Note | SubdiagnosticKind::Help | SubdiagnosticKind::Warn => { - if type_matches_path(&info.ty, &["rustc_span", "Span"]) { + if type_matches_path(info.ty, &["rustc_span", "Span"]) { Ok(self.add_spanned_subdiagnostic(binding, &fn_ident, slug)) - } else if type_is_unit(&info.ty) { + } else if type_is_unit(info.ty) { Ok(self.add_subdiagnostic(&fn_ident, slug)) } else { report_type_error(attr, "`Span` or `()`")? diff --git a/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs b/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs index fa0ca5a5242..446aebe4f83 100644 --- a/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs +++ b/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs @@ -409,7 +409,7 @@ impl<'parent, 'a> SubdiagnosticDeriveVariantBuilder<'parent, 'a> { let mut code = None; for nested_attr in list.nested.iter() { let NestedMeta::Meta(ref meta) = nested_attr else { - throw_invalid_nested_attr!(attr, &nested_attr); + throw_invalid_nested_attr!(attr, nested_attr); }; let span = meta.span().unwrap(); @@ -427,7 +427,7 @@ impl<'parent, 'a> SubdiagnosticDeriveVariantBuilder<'parent, 'a> { ); code.set_once((code_field, formatting_init), span); } - _ => throw_invalid_nested_attr!(attr, &nested_attr, |diag| { + _ => throw_invalid_nested_attr!(attr, nested_attr, |diag| { diag.help("`code` is the only valid nested attribute") }), } diff --git a/compiler/rustc_macros/src/diagnostics/utils.rs b/compiler/rustc_macros/src/diagnostics/utils.rs index dff088b9bdf..da90233523c 100644 --- a/compiler/rustc_macros/src/diagnostics/utils.rs +++ b/compiler/rustc_macros/src/diagnostics/utils.rs @@ -80,7 +80,7 @@ fn report_error_if_not_applied_to_ty( path: &[&str], ty_name: &str, ) -> Result<(), DiagnosticDeriveError> { - if !type_matches_path(&info.ty, path) { + if !type_matches_path(info.ty, path) { report_type_error(attr, ty_name)?; } @@ -105,8 +105,8 @@ pub(crate) fn report_error_if_not_applied_to_span( attr: &Attribute, info: &FieldInfo<'_>, ) -> Result<(), DiagnosticDeriveError> { - if !type_matches_path(&info.ty, &["rustc_span", "Span"]) - && !type_matches_path(&info.ty, &["rustc_errors", "MultiSpan"]) + if !type_matches_path(info.ty, &["rustc_span", "Span"]) + && !type_matches_path(info.ty, &["rustc_errors", "MultiSpan"]) { report_type_error(attr, "`Span` or `MultiSpan`")?; } @@ -686,7 +686,7 @@ impl SubdiagnosticKind { let meta = match nested_attr { NestedMeta::Meta(ref meta) => meta, NestedMeta::Lit(_) => { - invalid_nested_attr(attr, &nested_attr).emit(); + invalid_nested_attr(attr, nested_attr).emit(); continue; } }; @@ -698,7 +698,7 @@ impl SubdiagnosticKind { let string_value = match meta { Meta::NameValue(MetaNameValue { lit: syn::Lit::Str(value), .. }) => Some(value), - Meta::Path(_) => throw_invalid_nested_attr!(attr, &nested_attr, |diag| { + Meta::Path(_) => throw_invalid_nested_attr!(attr, nested_attr, |diag| { diag.help("a diagnostic slug must be the first argument to the attribute") }), _ => None, @@ -720,7 +720,7 @@ impl SubdiagnosticKind { | SubdiagnosticKind::MultipartSuggestion { ref mut applicability, .. }, ) => { let Some(value) = string_value else { - invalid_nested_attr(attr, &nested_attr).emit(); + invalid_nested_attr(attr, nested_attr).emit(); continue; }; @@ -736,7 +736,7 @@ impl SubdiagnosticKind { | SubdiagnosticKind::MultipartSuggestion { .. }, ) => { let Some(value) = string_value else { - invalid_nested_attr(attr, &nested_attr).emit(); + invalid_nested_attr(attr, nested_attr).emit(); continue; }; @@ -752,19 +752,19 @@ impl SubdiagnosticKind { // Invalid nested attribute (_, SubdiagnosticKind::Suggestion { .. }) => { - invalid_nested_attr(attr, &nested_attr) + invalid_nested_attr(attr, nested_attr) .help( "only `style`, `code` and `applicability` are valid nested attributes", ) .emit(); } (_, SubdiagnosticKind::MultipartSuggestion { .. }) => { - invalid_nested_attr(attr, &nested_attr) + invalid_nested_attr(attr, nested_attr) .help("only `style` and `applicability` are valid nested attributes") .emit() } _ => { - invalid_nested_attr(attr, &nested_attr).emit(); + invalid_nested_attr(attr, nested_attr).emit(); } } } diff --git a/compiler/rustc_middle/src/hir/map/mod.rs b/compiler/rustc_middle/src/hir/map/mod.rs index 4617c17b153..1bd8f953508 100644 --- a/compiler/rustc_middle/src/hir/map/mod.rs +++ b/compiler/rustc_middle/src/hir/map/mod.rs @@ -1022,7 +1022,7 @@ impl<'hir> Map<'hir> { .. }) => { // Ensure that the returned span has the item's SyntaxContext. - fn_decl_span.find_ancestor_in_same_ctxt(*span).unwrap_or(*span) + fn_decl_span.find_ancestor_inside(*span).unwrap_or(*span) } _ => self.span_with_body(hir_id), }; diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 20dde64e51b..a513444e1e0 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -100,13 +100,9 @@ impl<'tcx> HasLocalDecls<'tcx> for Body<'tcx> { /// pass will be named after the type, and it will consist of a main /// loop that goes over each available MIR and applies `run_pass`. pub trait MirPass<'tcx> { - fn name(&self) -> Cow<'_, str> { + fn name(&self) -> &str { let name = std::any::type_name::<Self>(); - if let Some(tail) = name.rfind(':') { - Cow::from(&name[tail + 1..]) - } else { - Cow::from(name) - } + if let Some((_, tail)) = name.rsplit_once(':') { tail } else { name } } /// Returns `true` if this pass is enabled with the current combination of compiler flags. @@ -182,35 +178,6 @@ impl RuntimePhase { } } -impl Display for MirPhase { - fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - match self { - MirPhase::Built => write!(f, "built"), - MirPhase::Analysis(p) => write!(f, "analysis-{}", p), - MirPhase::Runtime(p) => write!(f, "runtime-{}", p), - } - } -} - -impl Display for AnalysisPhase { - fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - match self { - AnalysisPhase::Initial => write!(f, "initial"), - AnalysisPhase::PostCleanup => write!(f, "post_cleanup"), - } - } -} - -impl Display for RuntimePhase { - fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { - match self { - RuntimePhase::Initial => write!(f, "initial"), - RuntimePhase::PostCleanup => write!(f, "post_cleanup"), - RuntimePhase::Optimized => write!(f, "optimized"), - } - } -} - /// Where a specific `mir::Body` comes from. #[derive(Copy, Clone, Debug, PartialEq, Eq)] #[derive(HashStable, TyEncodable, TyDecodable, TypeFoldable, TypeVisitable)] @@ -368,7 +335,7 @@ impl<'tcx> Body<'tcx> { let mut body = Body { phase: MirPhase::Built, - pass_count: 1, + pass_count: 0, source, basic_blocks: BasicBlocks::new(basic_blocks), source_scopes, @@ -403,7 +370,7 @@ impl<'tcx> Body<'tcx> { pub fn new_cfg_only(basic_blocks: IndexVec<BasicBlock, BasicBlockData<'tcx>>) -> Self { let mut body = Body { phase: MirPhase::Built, - pass_count: 1, + pass_count: 0, source: MirSource::item(CRATE_DEF_ID.to_def_id()), basic_blocks: BasicBlocks::new(basic_blocks), source_scopes: IndexVec::new(), diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs index 1cac656674d..2a4ff4b8810 100644 --- a/compiler/rustc_middle/src/mir/pretty.rs +++ b/compiler/rustc_middle/src/mir/pretty.rs @@ -16,7 +16,6 @@ use rustc_middle::mir::interpret::{ Pointer, Provenance, }; use rustc_middle::mir::visit::Visitor; -use rustc_middle::mir::MirSource; use rustc_middle::mir::*; use rustc_middle::ty::{self, TyCtxt}; use rustc_target::abi::Size; @@ -74,7 +73,7 @@ pub enum PassWhere { #[inline] pub fn dump_mir<'tcx, F>( tcx: TyCtxt<'tcx>, - pass_num: Option<&dyn Display>, + pass_num: bool, pass_name: &str, disambiguator: &dyn Display, body: &Body<'tcx>, @@ -111,7 +110,7 @@ pub fn dump_enabled<'tcx>(tcx: TyCtxt<'tcx>, pass_name: &str, def_id: DefId) -> fn dump_matched_mir_node<'tcx, F>( tcx: TyCtxt<'tcx>, - pass_num: Option<&dyn Display>, + pass_num: bool, pass_name: &str, disambiguator: &dyn Display, body: &Body<'tcx>, @@ -120,8 +119,7 @@ fn dump_matched_mir_node<'tcx, F>( F: FnMut(PassWhere, &mut dyn Write) -> io::Result<()>, { let _: io::Result<()> = try { - let mut file = - create_dump_file(tcx, "mir", pass_num, pass_name, disambiguator, body.source)?; + let mut file = create_dump_file(tcx, "mir", pass_num, pass_name, disambiguator, body)?; // see notes on #41697 above let def_path = ty::print::with_forced_impl_filename_line!(tcx.def_path_str(body.source.def_id())); @@ -143,16 +141,14 @@ fn dump_matched_mir_node<'tcx, F>( if tcx.sess.opts.unstable_opts.dump_mir_graphviz { let _: io::Result<()> = try { - let mut file = - create_dump_file(tcx, "dot", pass_num, pass_name, disambiguator, body.source)?; + let mut file = create_dump_file(tcx, "dot", pass_num, pass_name, disambiguator, body)?; write_mir_fn_graphviz(tcx, body, false, &mut file)?; }; } if let Some(spanview) = tcx.sess.opts.unstable_opts.dump_mir_spanview { let _: io::Result<()> = try { - let file_basename = - dump_file_basename(tcx, pass_num, pass_name, disambiguator, body.source); + let file_basename = dump_file_basename(tcx, pass_num, pass_name, disambiguator, body); let mut file = create_dump_file_with_basename(tcx, &file_basename, "html")?; if body.source.def_id().is_local() { write_mir_fn_spanview(tcx, body, spanview, &file_basename, &mut file)?; @@ -165,11 +161,12 @@ fn dump_matched_mir_node<'tcx, F>( /// where we should dump a MIR representation output files. fn dump_file_basename<'tcx>( tcx: TyCtxt<'tcx>, - pass_num: Option<&dyn Display>, + pass_num: bool, pass_name: &str, disambiguator: &dyn Display, - source: MirSource<'tcx>, + body: &Body<'tcx>, ) -> String { + let source = body.source; let promotion_id = match source.promoted { Some(id) => format!("-{:?}", id), None => String::new(), @@ -178,9 +175,10 @@ fn dump_file_basename<'tcx>( let pass_num = if tcx.sess.opts.unstable_opts.dump_mir_exclude_pass_number { String::new() } else { - match pass_num { - None => ".-------".to_string(), - Some(pass_num) => format!(".{}", pass_num), + if pass_num { + format!(".{:03}-{:03}", body.phase.phase_index(), body.pass_count) + } else { + ".-------".to_string() } }; @@ -250,14 +248,14 @@ fn create_dump_file_with_basename( pub fn create_dump_file<'tcx>( tcx: TyCtxt<'tcx>, extension: &str, - pass_num: Option<&dyn Display>, + pass_num: bool, pass_name: &str, disambiguator: &dyn Display, - source: MirSource<'tcx>, + body: &Body<'tcx>, ) -> io::Result<io::BufWriter<fs::File>> { create_dump_file_with_basename( tcx, - &dump_file_basename(tcx, pass_num, pass_name, disambiguator, source), + &dump_file_basename(tcx, pass_num, pass_name, disambiguator, body), extension, ) } diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index f2030b91b9b..7d2a6bda569 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -89,6 +89,19 @@ pub enum MirPhase { Runtime(RuntimePhase), } +impl MirPhase { + pub fn name(&self) -> &'static str { + match *self { + MirPhase::Built => "built", + MirPhase::Analysis(AnalysisPhase::Initial) => "analysis", + MirPhase::Analysis(AnalysisPhase::PostCleanup) => "analysis-post-cleanup", + MirPhase::Runtime(RuntimePhase::Initial) => "runtime", + MirPhase::Runtime(RuntimePhase::PostCleanup) => "runtime-post-cleanup", + MirPhase::Runtime(RuntimePhase::Optimized) => "runtime-optimized", + } + } +} + /// See [`MirPhase::Analysis`]. #[derive(Copy, Clone, TyEncodable, TyDecodable, Debug, PartialEq, Eq, PartialOrd, Ord)] #[derive(HashStable)] diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index e1220320eea..d6dea0e9f30 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -1109,6 +1109,7 @@ rustc_queries! { desc { |tcx| "looking up span for `{}`", tcx.def_path_str(def_id) } cache_on_disk_if { def_id.is_local() } separate_provide_extern + feedable } /// Gets the span for the identifier of the definition. diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index a9a7a2c8b01..c5683a9db94 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -1507,7 +1507,9 @@ impl<'tcx> TyCtxt<'tcx> { self.def_path(def_id).to_string_no_crate_verbose() ) } +} +impl<'tcx> TyCtxtAt<'tcx> { /// Create a new definition within the incr. comp. engine. pub fn create_def( self, @@ -1536,9 +1538,13 @@ impl<'tcx> TyCtxt<'tcx> { // - this write will have happened before these queries are called. let def_id = self.definitions.write().create_def(parent, data); - TyCtxtFeed { tcx: self, def_id } + let feed = TyCtxtFeed { tcx: self.tcx, def_id }; + feed.def_span(self.span); + feed } +} +impl<'tcx> TyCtxt<'tcx> { 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/query.rs b/compiler/rustc_middle/src/ty/query.rs index 47c1379b308..a7fd1754960 100644 --- a/compiler/rustc_middle/src/ty/query.rs +++ b/compiler/rustc_middle/src/ty/query.rs @@ -344,12 +344,10 @@ macro_rules! define_feedable { match cached { Ok(old) => { - assert_eq!( - value, old, - "Trying to feed an already recorded value for query {} key={key:?}", + bug!( + "Trying to feed an already recorded value for query {} key={key:?}:\nold value: {old:?}\nnew value: {value:?}", stringify!($name), ); - return old; } Err(()) => (), } diff --git a/compiler/rustc_middle/src/values.rs b/compiler/rustc_middle/src/values.rs index f4562cdfb88..70b98e59a8b 100644 --- a/compiler/rustc_middle/src/values.rs +++ b/compiler/rustc_middle/src/values.rs @@ -32,13 +32,23 @@ impl<'tcx> Value<TyCtxt<'tcx>> for ty::SymbolName<'_> { } impl<'tcx> Value<TyCtxt<'tcx>> for ty::Binder<'_, ty::FnSig<'_>> { - fn from_cycle_error(tcx: TyCtxt<'tcx>, _: &[QueryInfo]) -> Self { + fn from_cycle_error(tcx: TyCtxt<'tcx>, stack: &[QueryInfo]) -> Self { let err = tcx.ty_error(); - // FIXME(compiler-errors): It would be nice if we could get the - // query key, so we could at least generate a fn signature that - // has the right arity. + + let arity = if let Some(frame) = stack.get(0) + && frame.query.name == "fn_sig" + && let Some(def_id) = frame.query.def_id + && let Some(node) = tcx.hir().get_if_local(def_id) + && let Some(sig) = node.fn_sig() + { + sig.decl.inputs.len() + sig.decl.implicit_self.has_implicit_self() as usize + } else { + tcx.sess.abort_if_errors(); + unreachable!() + }; + let fn_sig = ty::Binder::dummy(tcx.mk_fn_sig( - [].into_iter(), + std::iter::repeat(err).take(arity), err, false, rustc_hir::Unsafety::Normal, diff --git a/compiler/rustc_mir_build/src/build/custom/mod.rs b/compiler/rustc_mir_build/src/build/custom/mod.rs index 68d8766c907..eb021f47757 100644 --- a/compiler/rustc_mir_build/src/build/custom/mod.rs +++ b/compiler/rustc_mir_build/src/build/custom/mod.rs @@ -57,7 +57,7 @@ pub(super) fn build_custom_mir<'tcx>( is_polymorphic: false, tainted_by_errors: None, injection_phase: None, - pass_count: 1, + pass_count: 0, }; body.local_decls.push(LocalDecl::new(return_ty, return_ty_span)); @@ -74,7 +74,7 @@ pub(super) fn build_custom_mir<'tcx>( let mut pctxt = ParseCtxt { tcx, thir, - source_info: SourceInfo { span, scope: OUTERMOST_SOURCE_SCOPE }, + source_scope: OUTERMOST_SOURCE_SCOPE, body: &mut body, local_map: FxHashMap::default(), block_map: FxHashMap::default(), @@ -128,7 +128,7 @@ fn parse_attribute(attr: &Attribute) -> MirPhase { struct ParseCtxt<'tcx, 'body> { tcx: TyCtxt<'tcx>, thir: &'body Thir<'tcx>, - source_info: SourceInfo, + source_scope: SourceScope, body: &'body mut Body<'tcx>, local_map: FxHashMap<LocalVarId, Local>, diff --git a/compiler/rustc_mir_build/src/build/custom/parse.rs b/compiler/rustc_mir_build/src/build/custom/parse.rs index 52cb0a4826d..d72770e70c7 100644 --- a/compiler/rustc_mir_build/src/build/custom/parse.rs +++ b/compiler/rustc_mir_build/src/build/custom/parse.rs @@ -23,6 +23,7 @@ macro_rules! parse_by_kind { ( $self:ident, $expr_id:expr, + $expr_name:pat, $expected:literal, $( @call($name:literal, $args:ident) => $call_expr:expr, @@ -33,6 +34,8 @@ macro_rules! parse_by_kind { ) => {{ let expr_id = $self.preparse($expr_id); let expr = &$self.thir[expr_id]; + debug!("Trying to parse {:?} as {}", expr.kind, $expected); + let $expr_name = expr; match &expr.kind { $( ExprKind::Call { ty, fun: _, args: $args, .. } if { @@ -137,10 +140,10 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { /// This allows us to easily parse the basic blocks declarations, local declarations, and /// basic block definitions in order. pub fn parse_body(&mut self, expr_id: ExprId) -> PResult<()> { - let body = parse_by_kind!(self, expr_id, "whole body", + let body = parse_by_kind!(self, expr_id, _, "whole body", ExprKind::Block { block } => self.thir[*block].expr.unwrap(), ); - let (block_decls, rest) = parse_by_kind!(self, body, "body with block decls", + let (block_decls, rest) = parse_by_kind!(self, body, _, "body with block decls", ExprKind::Block { block } => { let block = &self.thir[*block]; (&block.stmts, block.expr.unwrap()) @@ -148,7 +151,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { ); self.parse_block_decls(block_decls.iter().copied())?; - let (local_decls, rest) = parse_by_kind!(self, rest, "body with local decls", + let (local_decls, rest) = parse_by_kind!(self, rest, _, "body with local decls", ExprKind::Block { block } => { let block = &self.thir[*block]; (&block.stmts, block.expr.unwrap()) @@ -156,7 +159,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { ); self.parse_local_decls(local_decls.iter().copied())?; - let block_defs = parse_by_kind!(self, rest, "body with block defs", + let block_defs = parse_by_kind!(self, rest, _, "body with block defs", ExprKind::Block { block } => &self.thir[*block].stmts, ); for (i, block_def) in block_defs.iter().enumerate() { @@ -223,22 +226,30 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { } fn parse_block_def(&self, expr_id: ExprId) -> PResult<BasicBlockData<'tcx>> { - let block = parse_by_kind!(self, expr_id, "basic block", + let block = parse_by_kind!(self, expr_id, _, "basic block", ExprKind::Block { block } => &self.thir[*block], ); let mut data = BasicBlockData::new(None); for stmt_id in &*block.stmts { let stmt = self.statement_as_expr(*stmt_id)?; + let span = self.thir[stmt].span; let statement = self.parse_statement(stmt)?; - data.statements.push(Statement { source_info: self.source_info, kind: statement }); + data.statements.push(Statement { + source_info: SourceInfo { span, scope: self.source_scope }, + kind: statement, + }); } let Some(trailing) = block.expr else { return Err(self.expr_error(expr_id, "terminator")) }; + let span = self.thir[trailing].span; let terminator = self.parse_terminator(trailing)?; - data.terminator = Some(Terminator { source_info: self.source_info, kind: terminator }); + data.terminator = Some(Terminator { + source_info: SourceInfo { span, scope: self.source_scope }, + kind: terminator, + }); Ok(data) } diff --git a/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs b/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs index 6d6176584f5..03206af33bf 100644 --- a/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs +++ b/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs @@ -1,10 +1,11 @@ +use rustc_middle::mir::interpret::{ConstValue, Scalar}; use rustc_middle::{mir::*, thir::*, ty}; use super::{parse_by_kind, PResult, ParseCtxt}; impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { pub fn parse_statement(&self, expr_id: ExprId) -> PResult<StatementKind<'tcx>> { - parse_by_kind!(self, expr_id, "statement", + parse_by_kind!(self, expr_id, _, "statement", @call("mir_retag", args) => { Ok(StatementKind::Retag(RetagKind::Default, Box::new(self.parse_place(args[0])?))) }, @@ -20,7 +21,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { } pub fn parse_terminator(&self, expr_id: ExprId) -> PResult<TerminatorKind<'tcx>> { - parse_by_kind!(self, expr_id, "terminator", + parse_by_kind!(self, expr_id, _, "terminator", @call("mir_return", _args) => { Ok(TerminatorKind::Return) }, @@ -31,7 +32,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { } fn parse_rvalue(&self, expr_id: ExprId) -> PResult<Rvalue<'tcx>> { - parse_by_kind!(self, expr_id, "rvalue", + parse_by_kind!(self, expr_id, _, "rvalue", ExprKind::Borrow { borrow_kind, arg } => Ok( Rvalue::Ref(self.tcx.lifetimes.re_erased, *borrow_kind, self.parse_place(*arg)?) ), @@ -43,14 +44,26 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { } fn parse_operand(&self, expr_id: ExprId) -> PResult<Operand<'tcx>> { - parse_by_kind!(self, expr_id, "operand", + parse_by_kind!(self, expr_id, expr, "operand", @call("mir_move", args) => self.parse_place(args[0]).map(Operand::Move), + @call("mir_static", args) => self.parse_static(args[0]), + @call("mir_static_mut", args) => self.parse_static(args[0]), + ExprKind::Literal { .. } + | ExprKind::NamedConst { .. } + | ExprKind::NonHirLiteral { .. } + | ExprKind::ZstLiteral { .. } + | ExprKind::ConstParam { .. } + | ExprKind::ConstBlock { .. } => { + Ok(Operand::Constant(Box::new( + crate::build::expr::as_constant::as_constant_inner(expr, |_| None, self.tcx) + ))) + }, _ => self.parse_place(expr_id).map(Operand::Copy), ) } fn parse_place(&self, expr_id: ExprId) -> PResult<Place<'tcx>> { - parse_by_kind!(self, expr_id, "place", + parse_by_kind!(self, expr_id, _, "place", ExprKind::Deref { arg } => Ok( self.parse_place(*arg)?.project_deeper(&[PlaceElem::Deref], self.tcx) ), @@ -59,14 +72,34 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { } fn parse_local(&self, expr_id: ExprId) -> PResult<Local> { - parse_by_kind!(self, expr_id, "local", + parse_by_kind!(self, expr_id, _, "local", ExprKind::VarRef { id } => Ok(self.local_map[id]), ) } fn parse_block(&self, expr_id: ExprId) -> PResult<BasicBlock> { - parse_by_kind!(self, expr_id, "basic block", + parse_by_kind!(self, expr_id, _, "basic block", ExprKind::VarRef { id } => Ok(self.block_map[id]), ) } + + fn parse_static(&self, expr_id: ExprId) -> PResult<Operand<'tcx>> { + let expr_id = parse_by_kind!(self, expr_id, _, "static", + ExprKind::Deref { arg } => *arg, + ); + + parse_by_kind!(self, expr_id, expr, "static", + ExprKind::StaticRef { alloc_id, ty, .. } => { + let const_val = + ConstValue::Scalar(Scalar::from_pointer((*alloc_id).into(), &self.tcx)); + let literal = ConstantKind::Val(const_val, *ty); + + Ok(Operand::Constant(Box::new(Constant { + span: expr.span, + user_ty: None, + literal + }))) + }, + ) + } } diff --git a/compiler/rustc_mir_build/src/build/expr/as_constant.rs b/compiler/rustc_mir_build/src/build/expr/as_constant.rs index 32c0207cb68..717c6231574 100644 --- a/compiler/rustc_mir_build/src/build/expr/as_constant.rs +++ b/compiler/rustc_mir_build/src/build/expr/as_constant.rs @@ -8,7 +8,9 @@ use rustc_middle::mir::interpret::{ }; use rustc_middle::mir::*; use rustc_middle::thir::*; -use rustc_middle::ty::{self, CanonicalUserTypeAnnotation, TyCtxt}; +use rustc_middle::ty::{ + self, CanonicalUserType, CanonicalUserTypeAnnotation, TyCtxt, UserTypeAnnotationIndex, +}; use rustc_span::DUMMY_SP; use rustc_target::abi::Size; @@ -19,84 +21,87 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let this = self; let tcx = this.tcx; let Expr { ty, temp_lifetime: _, span, ref kind } = *expr; - match *kind { + match kind { ExprKind::Scope { region_scope: _, lint_level: _, value } => { - this.as_constant(&this.thir[value]) - } - ExprKind::Literal { lit, neg } => { - let literal = - match lit_to_mir_constant(tcx, LitToConstInput { lit: &lit.node, ty, neg }) { - Ok(c) => c, - Err(LitToConstError::Reported(guar)) => { - ConstantKind::Ty(tcx.const_error_with_guaranteed(ty, guar)) - } - Err(LitToConstError::TypeError) => { - bug!("encountered type error in `lit_to_mir_constant") - } - }; - - Constant { span, user_ty: None, literal } + this.as_constant(&this.thir[*value]) } - ExprKind::NonHirLiteral { lit, ref user_ty } => { - let user_ty = user_ty.as_ref().map(|user_ty| { - this.canonical_user_type_annotations.push(CanonicalUserTypeAnnotation { + _ => as_constant_inner( + expr, + |user_ty| { + Some(this.canonical_user_type_annotations.push(CanonicalUserTypeAnnotation { span, user_ty: user_ty.clone(), inferred_ty: ty, - }) - }); - let literal = ConstantKind::Val(ConstValue::Scalar(Scalar::Int(lit)), ty); + })) + }, + tcx, + ), + } + } +} - Constant { span, user_ty: user_ty, literal } - } - ExprKind::ZstLiteral { ref user_ty } => { - let user_ty = user_ty.as_ref().map(|user_ty| { - this.canonical_user_type_annotations.push(CanonicalUserTypeAnnotation { - span, - user_ty: user_ty.clone(), - inferred_ty: ty, - }) - }); - let literal = ConstantKind::Val(ConstValue::ZeroSized, ty); +pub fn as_constant_inner<'tcx>( + expr: &Expr<'tcx>, + push_cuta: impl FnMut(&Box<CanonicalUserType<'tcx>>) -> Option<UserTypeAnnotationIndex>, + tcx: TyCtxt<'tcx>, +) -> Constant<'tcx> { + let Expr { ty, temp_lifetime: _, span, ref kind } = *expr; + match *kind { + ExprKind::Literal { lit, neg } => { + let literal = + match lit_to_mir_constant(tcx, LitToConstInput { lit: &lit.node, ty, neg }) { + Ok(c) => c, + Err(LitToConstError::Reported(guar)) => { + ConstantKind::Ty(tcx.const_error_with_guaranteed(ty, guar)) + } + Err(LitToConstError::TypeError) => { + bug!("encountered type error in `lit_to_mir_constant") + } + }; - Constant { span, user_ty: user_ty, literal } - } - ExprKind::NamedConst { def_id, substs, ref user_ty } => { - let user_ty = user_ty.as_ref().map(|user_ty| { - this.canonical_user_type_annotations.push(CanonicalUserTypeAnnotation { - span, - user_ty: user_ty.clone(), - inferred_ty: ty, - }) - }); + Constant { span, user_ty: None, literal } + } + ExprKind::NonHirLiteral { lit, ref user_ty } => { + let user_ty = user_ty.as_ref().map(push_cuta).flatten(); - let uneval = - mir::UnevaluatedConst::new(ty::WithOptConstParam::unknown(def_id), substs); - let literal = ConstantKind::Unevaluated(uneval, ty); + let literal = ConstantKind::Val(ConstValue::Scalar(Scalar::Int(lit)), ty); - Constant { user_ty, span, literal } - } - ExprKind::ConstParam { param, def_id: _ } => { - let const_param = tcx.mk_const(param, expr.ty); - let literal = ConstantKind::Ty(const_param); + Constant { span, user_ty: user_ty, literal } + } + ExprKind::ZstLiteral { ref user_ty } => { + let user_ty = user_ty.as_ref().map(push_cuta).flatten(); - Constant { user_ty: None, span, literal } - } - ExprKind::ConstBlock { did: def_id, substs } => { - let uneval = - mir::UnevaluatedConst::new(ty::WithOptConstParam::unknown(def_id), substs); - let literal = ConstantKind::Unevaluated(uneval, ty); + let literal = ConstantKind::Val(ConstValue::ZeroSized, ty); - Constant { user_ty: None, span, literal } - } - ExprKind::StaticRef { alloc_id, ty, .. } => { - let const_val = ConstValue::Scalar(Scalar::from_pointer(alloc_id.into(), &tcx)); - let literal = ConstantKind::Val(const_val, ty); + Constant { span, user_ty: user_ty, literal } + } + ExprKind::NamedConst { def_id, substs, ref user_ty } => { + let user_ty = user_ty.as_ref().map(push_cuta).flatten(); - Constant { span, user_ty: None, literal } - } - _ => span_bug!(span, "expression is not a valid constant {:?}", kind), + let uneval = mir::UnevaluatedConst::new(ty::WithOptConstParam::unknown(def_id), substs); + let literal = ConstantKind::Unevaluated(uneval, ty); + + Constant { user_ty, span, literal } + } + ExprKind::ConstParam { param, def_id: _ } => { + let const_param = tcx.mk_const(ty::ConstKind::Param(param), expr.ty); + let literal = ConstantKind::Ty(const_param); + + Constant { user_ty: None, span, literal } + } + ExprKind::ConstBlock { did: def_id, substs } => { + let uneval = mir::UnevaluatedConst::new(ty::WithOptConstParam::unknown(def_id), substs); + let literal = ConstantKind::Unevaluated(uneval, ty); + + Constant { user_ty: None, span, literal } + } + ExprKind::StaticRef { alloc_id, ty, .. } => { + let const_val = ConstValue::Scalar(Scalar::from_pointer(alloc_id.into(), &tcx)); + let literal = ConstantKind::Val(const_val, ty); + + Constant { span, user_ty: None, literal } } + _ => span_bug!(span, "expression is not a valid constant {:?}", kind), } } diff --git a/compiler/rustc_mir_build/src/build/mod.rs b/compiler/rustc_mir_build/src/build/mod.rs index 0b76122913e..b456e2aa37a 100644 --- a/compiler/rustc_mir_build/src/build/mod.rs +++ b/compiler/rustc_mir_build/src/build/mod.rs @@ -492,7 +492,7 @@ fn construct_fn<'tcx>( arguments, return_ty, return_ty_span, - span, + span_with_body, custom_mir_attr, ); } diff --git a/compiler/rustc_mir_dataflow/src/framework/engine.rs b/compiler/rustc_mir_dataflow/src/framework/engine.rs index bc75645e7c9..6ddbe69e17e 100644 --- a/compiler/rustc_mir_dataflow/src/framework/engine.rs +++ b/compiler/rustc_mir_dataflow/src/framework/engine.rs @@ -294,14 +294,7 @@ where None if tcx.sess.opts.unstable_opts.dump_mir_dataflow && dump_enabled(tcx, A::NAME, def_id) => { - create_dump_file( - tcx, - ".dot", - None, - A::NAME, - &pass_name.unwrap_or("-----"), - body.source, - )? + create_dump_file(tcx, ".dot", false, A::NAME, &pass_name.unwrap_or("-----"), body)? } _ => return Ok(()), diff --git a/compiler/rustc_mir_transform/src/coverage/debug.rs b/compiler/rustc_mir_transform/src/coverage/debug.rs index 0f8679b0bd6..d6a298fade4 100644 --- a/compiler/rustc_mir_transform/src/coverage/debug.rs +++ b/compiler/rustc_mir_transform/src/coverage/debug.rs @@ -638,7 +638,7 @@ pub(super) fn dump_coverage_spanview<'tcx>( let def_id = mir_source.def_id(); let span_viewables = span_viewables(tcx, mir_body, basic_coverage_blocks, &coverage_spans); - let mut file = create_dump_file(tcx, "html", None, pass_name, &0, mir_source) + let mut file = create_dump_file(tcx, "html", false, pass_name, &0, mir_body) .expect("Unexpected error creating MIR spanview HTML file"); let crate_name = tcx.crate_name(def_id.krate); let item_name = tcx.def_path(def_id).to_filename_friendly_no_crate(); @@ -739,7 +739,7 @@ pub(super) fn dump_coverage_graphviz<'tcx>( .join("\n ") )); } - let mut file = create_dump_file(tcx, "dot", None, pass_name, &0, mir_source) + let mut file = create_dump_file(tcx, "dot", false, pass_name, &0, mir_body) .expect("Unexpected error creating BasicCoverageBlock graphviz DOT file"); graphviz_writer .write_graphviz(tcx, &mut file) diff --git a/compiler/rustc_mir_transform/src/dest_prop.rs b/compiler/rustc_mir_transform/src/dest_prop.rs index 8cd44ab82cc..97485c4f57b 100644 --- a/compiler/rustc_mir_transform/src/dest_prop.rs +++ b/compiler/rustc_mir_transform/src/dest_prop.rs @@ -787,7 +787,7 @@ fn dest_prop_mir_dump<'body, 'tcx>( round: usize, ) { let mut reachable = None; - dump_mir(tcx, None, "DestinationPropagation-dataflow", &round, body, |pass_where, w| { + dump_mir(tcx, false, "DestinationPropagation-dataflow", &round, body, |pass_where, w| { let reachable = reachable.get_or_insert_with(|| traversal::reachable_as_bitset(body)); match pass_where { diff --git a/compiler/rustc_mir_transform/src/dump_mir.rs b/compiler/rustc_mir_transform/src/dump_mir.rs index 6b995141a2b..778ae63c5a4 100644 --- a/compiler/rustc_mir_transform/src/dump_mir.rs +++ b/compiler/rustc_mir_transform/src/dump_mir.rs @@ -1,6 +1,5 @@ //! This pass just dumps MIR at a specified point. -use std::borrow::Cow; use std::fs::File; use std::io; @@ -13,8 +12,8 @@ use rustc_session::config::{OutputFilenames, OutputType}; pub struct Marker(pub &'static str); impl<'tcx> MirPass<'tcx> for Marker { - fn name(&self) -> Cow<'_, str> { - Cow::Borrowed(self.0) + fn name(&self) -> &str { + self.0 } fn run_pass(&self, _tcx: TyCtxt<'tcx>, _body: &mut Body<'tcx>) {} diff --git a/compiler/rustc_mir_transform/src/generator.rs b/compiler/rustc_mir_transform/src/generator.rs index ffe4d43bc88..8922298ecaf 100644 --- a/compiler/rustc_mir_transform/src/generator.rs +++ b/compiler/rustc_mir_transform/src/generator.rs @@ -1000,7 +1000,7 @@ fn create_generator_drop_shim<'tcx>( // unrelated code from the resume part of the function simplify::remove_dead_blocks(tcx, &mut body); - dump_mir(tcx, None, "generator_drop", &0, &body, |_, _| Ok(())); + dump_mir(tcx, false, "generator_drop", &0, &body, |_, _| Ok(())); body } @@ -1171,7 +1171,7 @@ fn create_generator_resume_function<'tcx>( // unrelated code from the drop part of the function simplify::remove_dead_blocks(tcx, body); - dump_mir(tcx, None, "generator_resume", &0, body, |_, _| Ok(())); + dump_mir(tcx, false, "generator_resume", &0, body, |_, _| Ok(())); } fn insert_clean_drop(body: &mut Body<'_>) -> BasicBlock { @@ -1394,14 +1394,14 @@ impl<'tcx> MirPass<'tcx> for StateTransform { // This is expanded to a drop ladder in `elaborate_generator_drops`. let drop_clean = insert_clean_drop(body); - dump_mir(tcx, None, "generator_pre-elab", &0, body, |_, _| Ok(())); + dump_mir(tcx, false, "generator_pre-elab", &0, body, |_, _| Ok(())); // Expand `drop(generator_struct)` to a drop ladder which destroys upvars. // If any upvars are moved out of, drop elaboration will handle upvar destruction. // However we need to also elaborate the code generated by `insert_clean_drop`. elaborate_generator_drops(tcx, body); - dump_mir(tcx, None, "generator_post-transform", &0, body, |_, _| Ok(())); + dump_mir(tcx, false, "generator_post-transform", &0, body, |_, _| Ok(())); // Create a copy of our MIR and use it to create the drop shim for the generator let drop_shim = create_generator_drop_shim(tcx, &transform, gen_ty, body, drop_clean); diff --git a/compiler/rustc_mir_transform/src/inline.rs b/compiler/rustc_mir_transform/src/inline.rs index 744a48c6bb8..220cf7df9c6 100644 --- a/compiler/rustc_mir_transform/src/inline.rs +++ b/compiler/rustc_mir_transform/src/inline.rs @@ -347,10 +347,6 @@ impl<'tcx> Inliner<'tcx> { return Err("C variadic"); } - if callee_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { - return Err("naked"); - } - if callee_attrs.flags.contains(CodegenFnAttrFlags::COLD) { return Err("cold"); } diff --git a/compiler/rustc_mir_transform/src/pass_manager.rs b/compiler/rustc_mir_transform/src/pass_manager.rs index 27dbc3e22c9..e1b65823a5a 100644 --- a/compiler/rustc_mir_transform/src/pass_manager.rs +++ b/compiler/rustc_mir_transform/src/pass_manager.rs @@ -1,5 +1,3 @@ -use std::borrow::Cow; - use rustc_middle::mir::{self, Body, MirPhase, RuntimePhase}; use rustc_middle::ty::TyCtxt; use rustc_session::Session; @@ -8,13 +6,9 @@ use crate::{validate, MirPass}; /// Just like `MirPass`, except it cannot mutate `Body`. pub trait MirLint<'tcx> { - fn name(&self) -> Cow<'_, str> { + fn name(&self) -> &str { let name = std::any::type_name::<Self>(); - if let Some(tail) = name.rfind(':') { - Cow::from(&name[tail + 1..]) - } else { - Cow::from(name) - } + if let Some((_, tail)) = name.rsplit_once(':') { tail } else { name } } fn is_enabled(&self, _sess: &Session) -> bool { @@ -32,7 +26,7 @@ impl<'tcx, T> MirPass<'tcx> for Lint<T> where T: MirLint<'tcx>, { - fn name(&self) -> Cow<'_, str> { + fn name(&self) -> &str { self.0.name() } @@ -55,7 +49,7 @@ impl<'tcx, T> MirPass<'tcx> for WithMinOptLevel<T> where T: MirPass<'tcx>, { - fn name(&self) -> Cow<'_, str> { + fn name(&self) -> &str { self.1.name() } @@ -146,10 +140,11 @@ fn run_passes_inner<'tcx>( } body.phase = new_phase; + body.pass_count = 0; dump_mir_for_phase_change(tcx, body); if validate || new_phase == MirPhase::Runtime(RuntimePhase::Optimized) { - validate_body(tcx, body, format!("after phase change to {}", new_phase)); + validate_body(tcx, body, format!("after phase change to {}", new_phase.name())); } body.pass_count = 1; @@ -166,11 +161,9 @@ pub fn dump_mir_for_pass<'tcx>( pass_name: &str, is_after: bool, ) { - let phase_index = body.phase.phase_index(); - mir::dump_mir( tcx, - Some(&format_args!("{:03}-{:03}", phase_index, body.pass_count)), + true, pass_name, if is_after { &"after" } else { &"before" }, body, @@ -179,14 +172,6 @@ pub fn dump_mir_for_pass<'tcx>( } pub fn dump_mir_for_phase_change<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { - let phase_index = body.phase.phase_index(); - - mir::dump_mir( - tcx, - Some(&format_args!("{:03}-000", phase_index)), - &format!("{}", body.phase), - &"after", - body, - |_, _| Ok(()), - ) + assert_eq!(body.pass_count, 0); + mir::dump_mir(tcx, true, body.phase.name(), &"after", body, |_, _| Ok(())) } diff --git a/compiler/rustc_mir_transform/src/simplify.rs b/compiler/rustc_mir_transform/src/simplify.rs index 57d372fda56..475e2ec9a1d 100644 --- a/compiler/rustc_mir_transform/src/simplify.rs +++ b/compiler/rustc_mir_transform/src/simplify.rs @@ -35,7 +35,6 @@ use rustc_middle::mir::visit::{MutVisitor, MutatingUseContext, PlaceContext, Vis use rustc_middle::mir::*; use rustc_middle::ty::TyCtxt; use smallvec::SmallVec; -use std::borrow::Cow; use std::convert::TryInto; pub struct SimplifyCfg { @@ -57,8 +56,8 @@ pub fn simplify_cfg<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { } impl<'tcx> MirPass<'tcx> for SimplifyCfg { - fn name(&self) -> Cow<'_, str> { - Cow::Borrowed(&self.label) + fn name(&self) -> &str { + &self.label } fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { diff --git a/compiler/rustc_mir_transform/src/simplify_branches.rs b/compiler/rustc_mir_transform/src/simplify_branches.rs index 3bbae5b8976..405ebce4d22 100644 --- a/compiler/rustc_mir_transform/src/simplify_branches.rs +++ b/compiler/rustc_mir_transform/src/simplify_branches.rs @@ -2,8 +2,6 @@ use crate::MirPass; use rustc_middle::mir::*; use rustc_middle::ty::TyCtxt; -use std::borrow::Cow; - /// A pass that replaces a branch with a goto when its condition is known. pub struct SimplifyConstCondition { label: String, @@ -16,8 +14,8 @@ impl SimplifyConstCondition { } impl<'tcx> MirPass<'tcx> for SimplifyConstCondition { - fn name(&self) -> Cow<'_, str> { - Cow::Borrowed(&self.label) + fn name(&self) -> &str { + &self.label } fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index e0443a697b5..f6a6ed379a2 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -390,20 +390,11 @@ impl<'a> Parser<'a> { // want to keep their span info to improve diagnostics in these cases in a later stage. (true, Some(AssocOp::Multiply)) | // `{ 42 } *foo = bar;` or `{ 42 } * 3` (true, Some(AssocOp::Subtract)) | // `{ 42 } -5` - (true, Some(AssocOp::Add)) // `{ 42 } + 42 - // If the next token is a keyword, then the tokens above *are* unambiguously incorrect: - // `if x { a } else { b } && if y { c } else { d }` - if !self.look_ahead(1, |t| t.is_used_keyword()) => { - // These cases are ambiguous and can't be identified in the parser alone. - let sp = self.sess.source_map().start_point(self.token.span); - self.sess.ambiguous_block_expr_parse.borrow_mut().insert(sp, lhs.span); - false - } - (true, Some(AssocOp::LAnd)) | - (true, Some(AssocOp::LOr)) | - (true, Some(AssocOp::BitOr)) => { - // `{ 42 } &&x` (#61475) or `{ 42 } && if x { 1 } else { 0 }`. Separated from the - // above due to #74233. + (true, Some(AssocOp::Add)) | // `{ 42 } + 42` (unary plus) + (true, Some(AssocOp::LAnd)) | // `{ 42 } &&x` (#61475) or `{ 42 } && if x { 1 } else { 0 }` + (true, Some(AssocOp::LOr)) | // `{ 42 } || 42` ("logical or" or closure) + (true, Some(AssocOp::BitOr)) // `{ 42 } | 42` or `{ 42 } |x| 42` + => { // These cases are ambiguous and can't be identified in the parser alone. // // Bitwise AND is left out because guessing intent is hard. We can make @@ -2060,7 +2051,7 @@ impl<'a> Parser<'a> { }; let capture_clause = self.parse_capture_clause()?; - let fn_decl = self.parse_fn_block_decl()?; + let (fn_decl, fn_arg_span) = self.parse_fn_block_decl()?; let decl_hi = self.prev_token.span; let mut body = match fn_decl.output { FnRetTy::Default(_) => { @@ -2101,6 +2092,7 @@ impl<'a> Parser<'a> { fn_decl, body, fn_decl_span: lo.to(decl_hi), + fn_arg_span, })), ); @@ -2129,7 +2121,9 @@ impl<'a> Parser<'a> { } /// Parses the `|arg, arg|` header of a closure. - fn parse_fn_block_decl(&mut self) -> PResult<'a, P<FnDecl>> { + fn parse_fn_block_decl(&mut self) -> PResult<'a, (P<FnDecl>, Span)> { + let arg_start = self.token.span.lo(); + let inputs = if self.eat(&token::OrOr) { Vec::new() } else { @@ -2145,10 +2139,11 @@ impl<'a> Parser<'a> { self.expect_or()?; args }; + let arg_span = self.prev_token.span.with_lo(arg_start); let output = self.parse_ret_ty(AllowPlus::Yes, RecoverQPath::Yes, RecoverReturnSign::Yes)?; - Ok(P(FnDecl { inputs, output })) + Ok((P(FnDecl { inputs, output }), arg_span)) } /// Parses a parameter in a closure header (e.g., `|arg, arg|`). diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index 767fb9378be..84c63219920 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -1012,7 +1012,7 @@ impl<'a> Parser<'a> { prefix.span = lo.to(self.prev_token.span); } - UseTreeKind::Simple(self.parse_rename()?, DUMMY_NODE_ID, DUMMY_NODE_ID) + UseTreeKind::Simple(self.parse_rename()?) } }; diff --git a/compiler/rustc_parse/src/parser/stmt.rs b/compiler/rustc_parse/src/parser/stmt.rs index ff1ddfd97df..42197e63797 100644 --- a/compiler/rustc_parse/src/parser/stmt.rs +++ b/compiler/rustc_parse/src/parser/stmt.rs @@ -72,14 +72,22 @@ impl<'a> Parser<'a> { Ok(Some(if self.token.is_keyword(kw::Let) { self.parse_local_mk(lo, attrs, capture_semi, force_collect)? - } else if self.is_kw_followed_by_ident(kw::Mut) { - self.recover_stmt_local(lo, attrs, InvalidVariableDeclarationSub::MissingLet)? - } else if self.is_kw_followed_by_ident(kw::Auto) { + } else if self.is_kw_followed_by_ident(kw::Mut) && self.may_recover() { + self.recover_stmt_local_after_let(lo, attrs, InvalidVariableDeclarationSub::MissingLet)? + } else if self.is_kw_followed_by_ident(kw::Auto) && self.may_recover() { self.bump(); // `auto` - self.recover_stmt_local(lo, attrs, InvalidVariableDeclarationSub::UseLetNotAuto)? - } else if self.is_kw_followed_by_ident(sym::var) { + self.recover_stmt_local_after_let( + lo, + attrs, + InvalidVariableDeclarationSub::UseLetNotAuto, + )? + } else if self.is_kw_followed_by_ident(sym::var) && self.may_recover() { self.bump(); // `var` - self.recover_stmt_local(lo, attrs, InvalidVariableDeclarationSub::UseLetNotVar)? + self.recover_stmt_local_after_let( + lo, + attrs, + InvalidVariableDeclarationSub::UseLetNotVar, + )? } else if self.check_path() && !self.token.is_qpath_start() && !self.is_path_start_item() { // We have avoided contextual keywords like `union`, items with `crate` visibility, // or `auto trait` items. We aim to parse an arbitrary path `a::b` but not something @@ -213,13 +221,21 @@ impl<'a> Parser<'a> { } } - fn recover_stmt_local( + fn recover_stmt_local_after_let( &mut self, lo: Span, attrs: AttrWrapper, subdiagnostic: fn(Span) -> InvalidVariableDeclarationSub, ) -> PResult<'a, Stmt> { - let stmt = self.recover_local_after_let(lo, attrs)?; + let stmt = + self.collect_tokens_trailing_token(attrs, ForceCollect::Yes, |this, attrs| { + let local = this.parse_local(attrs)?; + // FIXME - maybe capture semicolon in recovery? + Ok(( + this.mk_stmt(lo.to(this.prev_token.span), StmtKind::Local(local)), + TrailingToken::None, + )) + })?; self.sess.emit_err(InvalidVariableDeclaration { span: lo, sub: subdiagnostic(lo) }); Ok(stmt) } @@ -243,17 +259,6 @@ impl<'a> Parser<'a> { }) } - fn recover_local_after_let(&mut self, lo: Span, attrs: AttrWrapper) -> PResult<'a, Stmt> { - self.collect_tokens_trailing_token(attrs, ForceCollect::No, |this, attrs| { - let local = this.parse_local(attrs)?; - // FIXME - maybe capture semicolon in recovery? - Ok(( - this.mk_stmt(lo.to(this.prev_token.span), StmtKind::Local(local)), - TrailingToken::None, - )) - }) - } - /// Parses a local variable declaration. fn parse_local(&mut self, attrs: AttrVec) -> PResult<'a, P<Local>> { let lo = self.prev_token.span; diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_parse/src/validate_attr.rs index 59e564114e5..72402a20090 100644 --- a/compiler/rustc_parse/src/validate_attr.rs +++ b/compiler/rustc_parse/src/validate_attr.rs @@ -10,9 +10,9 @@ use rustc_errors::{Applicability, FatalError, PResult}; use rustc_feature::{AttributeTemplate, BuiltinAttribute, BUILTIN_ATTRIBUTE_MAP}; use rustc_session::lint::builtin::ILL_FORMED_ATTRIBUTE_INPUT; use rustc_session::parse::ParseSess; -use rustc_span::{sym, Symbol}; +use rustc_span::{sym, Span, Symbol}; -pub fn check_meta(sess: &ParseSess, attr: &Attribute) { +pub fn check_attr(sess: &ParseSess, attr: &Attribute) { if attr.is_doc_comment() { return; } @@ -115,25 +115,34 @@ pub fn check_builtin_attribute( name: Symbol, template: AttributeTemplate, ) { - // Some special attributes like `cfg` must be checked - // before the generic check, so we skip them here. - let should_skip = |name| name == sym::cfg; - match parse_meta(sess, attr) { - Ok(meta) => { - if !should_skip(name) && !is_attr_template_compatible(&template, &meta.kind) { - emit_malformed_attribute(sess, attr, name, template); - } - } + Ok(meta) => check_builtin_meta_item(sess, &meta, attr.style, name, template), Err(mut err) => { err.emit(); } } } +pub fn check_builtin_meta_item( + sess: &ParseSess, + meta: &MetaItem, + style: ast::AttrStyle, + name: Symbol, + template: AttributeTemplate, +) { + // Some special attributes like `cfg` must be checked + // before the generic check, so we skip them here. + let should_skip = |name| name == sym::cfg; + + if !should_skip(name) && !is_attr_template_compatible(&template, &meta.kind) { + emit_malformed_attribute(sess, style, meta.span, name, template); + } +} + fn emit_malformed_attribute( sess: &ParseSess, - attr: &Attribute, + style: ast::AttrStyle, + span: Span, name: Symbol, template: AttributeTemplate, ) { @@ -147,7 +156,7 @@ fn emit_malformed_attribute( let mut msg = "attribute must be of the form ".to_owned(); let mut suggestions = vec![]; let mut first = true; - let inner = if attr.style == ast::AttrStyle::Inner { "!" } else { "" }; + let inner = if style == ast::AttrStyle::Inner { "!" } else { "" }; if template.word { first = false; let code = format!("#{}[{}]", inner, name); @@ -172,12 +181,12 @@ fn emit_malformed_attribute( suggestions.push(code); } if should_warn(name) { - sess.buffer_lint(&ILL_FORMED_ATTRIBUTE_INPUT, attr.span, ast::CRATE_NODE_ID, &msg); + sess.buffer_lint(&ILL_FORMED_ATTRIBUTE_INPUT, span, ast::CRATE_NODE_ID, &msg); } else { sess.span_diagnostic - .struct_span_err(attr.span, &error_msg) + .struct_span_err(span, &error_msg) .span_suggestions( - attr.span, + span, if suggestions.len() == 1 { "must be of the form" } else { @@ -196,7 +205,7 @@ pub fn emit_fatal_malformed_builtin_attribute( name: Symbol, ) -> ! { let template = BUILTIN_ATTRIBUTE_MAP.get(&name).expect("builtin attr defined").template; - emit_malformed_attribute(sess, attr, name, template); + emit_malformed_attribute(sess, attr.style, attr.span, name, template); // This is fatal, otherwise it will likely cause a cascade of other errors // (and an error here is expected to be very rare). FatalError.raise() diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs index 5d0224c35f3..da023fcf4c3 100644 --- a/compiler/rustc_passes/src/dead.rs +++ b/compiler/rustc_passes/src/dead.rs @@ -433,7 +433,7 @@ impl<'tcx> Visitor<'tcx> for MarkSymbolVisitor<'tcx> { self.in_pat = false; } - fn visit_path(&mut self, path: &'tcx hir::Path<'tcx>, _: hir::HirId) { + fn visit_path(&mut self, path: &hir::Path<'tcx>, _: hir::HirId) { self.handle_res(path.res); intravisit::walk_path(self, path); } diff --git a/compiler/rustc_passes/src/hir_stats.rs b/compiler/rustc_passes/src/hir_stats.rs index 140f02c046a..a7854cd4998 100644 --- a/compiler/rustc_passes/src/hir_stats.rs +++ b/compiler/rustc_passes/src/hir_stats.rs @@ -369,7 +369,7 @@ impl<'v> hir_visit::Visitor<'v> for StatCollector<'v> { hir_visit::walk_fn(self, fk, fd, b, id) } - fn visit_use(&mut self, p: &'v hir::Path<'v>, hir_id: hir::HirId) { + fn visit_use(&mut self, p: &'v hir::UsePath<'v>, hir_id: hir::HirId) { // This is `visit_use`, but the type is `Path` so record it that way. self.record("Path", Id::None, p); hir_visit::walk_use(self, p, hir_id) @@ -442,7 +442,7 @@ impl<'v> hir_visit::Visitor<'v> for StatCollector<'v> { hir_visit::walk_lifetime(self, lifetime) } - fn visit_path(&mut self, path: &'v hir::Path<'v>, _id: hir::HirId) { + fn visit_path(&mut self, path: &hir::Path<'v>, _id: hir::HirId) { self.record("Path", Id::None, path); hir_visit::walk_path(self, path) } diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs index 88bd655d8d3..da715523474 100644 --- a/compiler/rustc_passes/src/stability.rs +++ b/compiler/rustc_passes/src/stability.rs @@ -787,7 +787,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'tcx> { intravisit::walk_item(self, item); } - fn visit_path(&mut self, path: &'tcx hir::Path<'tcx>, id: hir::HirId) { + fn visit_path(&mut self, path: &hir::Path<'tcx>, id: hir::HirId) { if let Some(def_id) = path.res.opt_def_id() { let method_span = path.segments.last().map(|s| s.ident.span); let item_is_allowed = self.tcx.check_stability_allow_unstable( @@ -880,7 +880,7 @@ struct CheckTraitImplStable<'tcx> { } impl<'tcx> Visitor<'tcx> for CheckTraitImplStable<'tcx> { - fn visit_path(&mut self, path: &'tcx hir::Path<'tcx>, _id: hir::HirId) { + fn visit_path(&mut self, path: &hir::Path<'tcx>, _id: hir::HirId) { if let Some(def_id) = path.res.opt_def_id() { if let Some(stab) = self.tcx.lookup_stability(def_id) { self.fully_stable &= stab.level.is_stable(); diff --git a/compiler/rustc_passes/src/upvars.rs b/compiler/rustc_passes/src/upvars.rs index 9e41efce9ce..605cf0a93b8 100644 --- a/compiler/rustc_passes/src/upvars.rs +++ b/compiler/rustc_passes/src/upvars.rs @@ -66,7 +66,7 @@ impl CaptureCollector<'_, '_> { } impl<'tcx> Visitor<'tcx> for CaptureCollector<'_, 'tcx> { - fn visit_path(&mut self, path: &'tcx hir::Path<'tcx>, _: hir::HirId) { + fn visit_path(&mut self, path: &hir::Path<'tcx>, _: hir::HirId) { if let Res::Local(var_id) = path.res { self.visit_local_use(var_id, path.span); } diff --git a/compiler/rustc_query_system/src/dep_graph/graph.rs b/compiler/rustc_query_system/src/dep_graph/graph.rs index e44857a0238..30d28ff3455 100644 --- a/compiler/rustc_query_system/src/dep_graph/graph.rs +++ b/compiler/rustc_query_system/src/dep_graph/graph.rs @@ -532,7 +532,8 @@ impl<K: DepKind> DepGraph<K> { let mut edges = SmallVec::new(); K::read_deps(|task_deps| match task_deps { TaskDepsRef::Allow(deps) => edges.extend(deps.lock().reads.iter().copied()), - TaskDepsRef::Ignore | TaskDepsRef::Forbid => { + TaskDepsRef::Ignore => {} // During HIR lowering, we have no dependencies. + TaskDepsRef::Forbid => { panic!("Cannot summarize when dependencies are not recorded.") } }); diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index 91ac442431d..9c90d67aadf 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -445,19 +445,13 @@ impl<'a, 'b> BuildReducedGraphVisitor<'a, 'b> { prefix.is_empty() || prefix.len() == 1 && prefix[0].ident.name == kw::PathRoot }; match use_tree.kind { - ast::UseTreeKind::Simple(rename, id1, id2) => { + ast::UseTreeKind::Simple(rename) => { let mut ident = use_tree.ident(); let mut module_path = prefix; 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 id1 != ast::DUMMY_NODE_ID { - self.r.visibilities.insert(self.r.local_def_id(id1), vis); - } - if id2 != ast::DUMMY_NODE_ID { - self.r.visibilities.insert(self.r.local_def_id(id2), vis); - } if nested { // Correctly handle `self` @@ -565,7 +559,6 @@ impl<'a, 'b> BuildReducedGraphVisitor<'a, 'b> { type_ns_only, nested, id, - additional_ids: (id1, id2), }; self.add_import(module_path, kind, use_tree.span, item, root_span, item.id, vis); @@ -621,11 +614,7 @@ impl<'a, 'b> BuildReducedGraphVisitor<'a, 'b> { let new_span = prefix[prefix.len() - 1].ident.span; let tree = ast::UseTree { prefix: ast::Path::from_ident(Ident::new(kw::SelfLower, new_span)), - kind: ast::UseTreeKind::Simple( - Some(Ident::new(kw::Underscore, new_span)), - ast::DUMMY_NODE_ID, - ast::DUMMY_NODE_ID, - ), + kind: ast::UseTreeKind::Simple(Some(Ident::new(kw::Underscore, new_span))), span: use_tree.span, }; self.build_reduced_graph_for_use_tree( diff --git a/compiler/rustc_resolve/src/def_collector.rs b/compiler/rustc_resolve/src/def_collector.rs index bf2428e1731..2764a6c28a5 100644 --- a/compiler/rustc_resolve/src/def_collector.rs +++ b/compiler/rustc_resolve/src/def_collector.rs @@ -158,14 +158,6 @@ impl<'a, 'b> visit::Visitor<'a> for DefCollector<'a, 'b> { fn visit_use_tree(&mut self, use_tree: &'a UseTree, id: NodeId, _nested: bool) { self.create_def(id, DefPathData::Use, use_tree.span); - match use_tree.kind { - UseTreeKind::Simple(_, id1, id2) => { - self.create_def(id1, DefPathData::Use, use_tree.prefix.span); - self.create_def(id2, DefPathData::Use, use_tree.prefix.span); - } - UseTreeKind::Glob => (), - UseTreeKind::Nested(..) => {} - } visit::walk_use_tree(self, use_tree, id); } diff --git a/compiler/rustc_resolve/src/diagnostics.rs b/compiler/rustc_resolve/src/diagnostics.rs index bc3a710e84b..f6b6cf3a94c 100644 --- a/compiler/rustc_resolve/src/diagnostics.rs +++ b/compiler/rustc_resolve/src/diagnostics.rs @@ -1840,13 +1840,16 @@ impl<'a> Resolver<'a> { (format!("use of undeclared type `{}`", ident), suggestion) } else { - let suggestion = if ident.name == sym::alloc { - Some(( + let mut suggestion = None; + if ident.name == sym::alloc { + suggestion = Some(( vec![], String::from("add `extern crate alloc` to use the `alloc` crate"), Applicability::MaybeIncorrect, )) - } else { + } + + suggestion = suggestion.or_else(|| { self.find_similarly_named_module_or_crate(ident.name, &parent_scope.module).map( |sugg| { ( @@ -1856,7 +1859,7 @@ impl<'a> Resolver<'a> { ) }, ) - }; + }); (format!("use of undeclared crate or module `{}`", ident), suggestion) } } diff --git a/compiler/rustc_resolve/src/effective_visibilities.rs b/compiler/rustc_resolve/src/effective_visibilities.rs index 3aa8d52db03..85399385d1f 100644 --- a/compiler/rustc_resolve/src/effective_visibilities.rs +++ b/compiler/rustc_resolve/src/effective_visibilities.rs @@ -1,4 +1,4 @@ -use crate::{ImportKind, NameBinding, NameBindingKind, Resolver, ResolverTree}; +use crate::{NameBinding, NameBindingKind, Resolver, ResolverTree}; use rustc_ast::ast; use rustc_ast::visit; use rustc_ast::visit::Visitor; @@ -104,28 +104,11 @@ impl<'r, 'a> EffectiveVisibilitiesVisitor<'r, 'a> { for (binding, eff_vis) in visitor.import_effective_visibilities.iter() { let NameBindingKind::Import { import, .. } = binding.kind else { unreachable!() }; if let Some(node_id) = import.id() { - let mut update = |node_id| { - r.effective_visibilities.update_eff_vis( - r.local_def_id(node_id), - eff_vis, - ResolverTree(&r.definitions, &r.crate_loader), - ) - }; - update(node_id); - if let ImportKind::Single { additional_ids: (id1, id2), .. } = import.kind { - // In theory all the single import IDs have individual visibilities and - // effective visibilities, but in practice these IDs go straight to HIR - // where all their few uses assume that their (effective) visibility - // applies to the whole syntactic `use` item. So they all get the same - // value which is the maximum of all bindings. Maybe HIR for imports - // shouldn't use three IDs at all. - if id1 != ast::DUMMY_NODE_ID { - update(id1); - } - if id2 != ast::DUMMY_NODE_ID { - update(id2); - } - } + r.effective_visibilities.update_eff_vis( + r.local_def_id(node_id), + eff_vis, + ResolverTree(&r.definitions, &r.crate_loader), + ) } } diff --git a/compiler/rustc_resolve/src/imports.rs b/compiler/rustc_resolve/src/imports.rs index 2366b94732e..b100a8c17cf 100644 --- a/compiler/rustc_resolve/src/imports.rs +++ b/compiler/rustc_resolve/src/imports.rs @@ -4,7 +4,10 @@ use crate::diagnostics::{import_candidates, Suggestion}; use crate::Determinacy::{self, *}; use crate::Namespace::*; use crate::{module_to_string, names_to_string, ImportSuggestion}; -use crate::{AmbiguityKind, BindingKey, ModuleKind, ResolutionError, Resolver, Segment}; +use crate::{ + AmbiguityError, AmbiguityErrorMisc, AmbiguityKind, BindingKey, ModuleKind, ResolutionError, + Resolver, Segment, +}; use crate::{Finalize, Module, ModuleOrUniformRoot, ParentScope, PerNS, ScopeSet}; use crate::{NameBinding, NameBindingKind, PathResult}; @@ -56,9 +59,6 @@ pub enum ImportKind<'a> { /// If this is the import for `foo::bar::a`, we would have the ID of the `UseTree` /// for `a` in this field. id: NodeId, - /// Additional `NodeId`s allocated to a `ast::UseTree` for automatically generated `use` statement - /// (eg. implicit struct constructors) - additional_ids: (NodeId, NodeId), }, Glob { is_prelude: bool, @@ -88,7 +88,6 @@ impl<'a> std::fmt::Debug for ImportKind<'a> { ref type_ns_only, ref nested, ref id, - ref additional_ids, // Ignore the following to avoid an infinite loop while printing. source_bindings: _, target_bindings: _, @@ -99,7 +98,6 @@ impl<'a> std::fmt::Debug for ImportKind<'a> { .field("type_ns_only", type_ns_only) .field("nested", nested) .field("id", id) - .field("additional_ids", additional_ids) .finish_non_exhaustive(), Glob { ref is_prelude, ref max_vis, ref id } => f .debug_struct("Glob") @@ -796,7 +794,7 @@ impl<'a, 'b> ImportResolver<'a, 'b> { match binding { Ok(binding) => { // Consistency checks, analogous to `finalize_macro_resolutions`. - let initial_res = source_bindings[ns].get().map(|initial_binding| { + let initial_binding = source_bindings[ns].get().map(|initial_binding| { all_ns_err = false; if let Some(target_binding) = target_bindings[ns].get() { if target.name == kw::Underscore @@ -810,12 +808,20 @@ impl<'a, 'b> ImportResolver<'a, 'b> { ); } } - initial_binding.res() + initial_binding }); let res = binding.res(); - if let Ok(initial_res) = initial_res { + if let Ok(initial_binding) = initial_binding { + let initial_res = initial_binding.res(); if res != initial_res && this.ambiguity_errors.is_empty() { - span_bug!(import.span, "inconsistent resolution for an import"); + this.ambiguity_errors.push(AmbiguityError { + kind: AmbiguityKind::Import, + ident, + b1: initial_binding, + b2: binding, + misc1: AmbiguityErrorMisc::None, + misc2: AmbiguityErrorMisc::None, + }); } } else if res != Res::Err && this.ambiguity_errors.is_empty() diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index 2d2408c061e..fc9c9334aea 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -2360,8 +2360,8 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> { if let GenericParamKind::Lifetime = param.kind { // Record lifetime res, so lowering knows there is something fishy. self.record_lifetime_param(param.id, LifetimeRes::Error); - continue; } + continue; } Entry::Vacant(entry) => { entry.insert(param.ident.span); @@ -3365,13 +3365,13 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> { // Before we start looking for candidates, we have to get our hands // on the type user is trying to perform invocation on; basically: // we're transforming `HashMap::new` into just `HashMap`. - let path = match path.split_last() { + let prefix_path = match path.split_last() { Some((_, path)) if !path.is_empty() => path, _ => return Some(parent_err), }; let (mut err, candidates) = - this.smart_resolve_report_errors(path, path_span, PathSource::Type, None); + this.smart_resolve_report_errors(prefix_path, path_span, PathSource::Type, None); // There are two different error messages user might receive at // this point: @@ -3415,11 +3415,23 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> { if this.should_report_errs() { if candidates.is_empty() { - // When there is no suggested imports, we can just emit the error - // and suggestions immediately. Note that we bypass the usually error - // reporting routine (ie via `self.r.report_error`) because we need - // to post-process the `ResolutionError` above. - err.emit(); + if path.len() == 2 && prefix_path.len() == 1 { + // Delay to check whether methond name is an associated function or not + // ``` + // let foo = Foo {}; + // foo::bar(); // possibly suggest to foo.bar(); + //``` + err.stash( + prefix_path[0].ident.span, + rustc_errors::StashKey::CallAssocMethod, + ); + } else { + // When there is no suggested imports, we can just emit the error + // and suggestions immediately. Note that we bypass the usually error + // reporting routine (ie via `self.r.report_error`) because we need + // to post-process the `ResolutionError` above. + err.emit(); + } } else { // If there are suggested imports, the error reporting is delayed this.r.use_injections.push(UseError { @@ -3428,7 +3440,7 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> { def_id, instead: false, suggestion: None, - path: path.into(), + path: prefix_path.into(), is_call: source.is_call(), }); } diff --git a/compiler/rustc_save_analysis/src/dump_visitor.rs b/compiler/rustc_save_analysis/src/dump_visitor.rs index fae20c2ba5f..b4528853825 100644 --- a/compiler/rustc_save_analysis/src/dump_visitor.rs +++ b/compiler/rustc_save_analysis/src/dump_visitor.rs @@ -185,13 +185,13 @@ impl<'tcx> DumpVisitor<'tcx> { } } - fn write_sub_paths(&mut self, path: &'tcx hir::Path<'tcx>) { + fn write_sub_paths<R>(&mut self, path: &'tcx hir::Path<'tcx, R>) { self.write_segments(path.segments) } // As write_sub_paths, but does not process the last ident in the path (assuming it // will be processed elsewhere). See note on write_sub_paths about global. - fn write_sub_paths_truncated(&mut self, path: &'tcx hir::Path<'tcx>) { + fn write_sub_paths_truncated<R>(&mut self, path: &'tcx hir::Path<'tcx, R>) { if let [segments @ .., _] = path.segments { self.write_segments(segments) } diff --git a/compiler/rustc_save_analysis/src/lib.rs b/compiler/rustc_save_analysis/src/lib.rs index 4fa0c14715e..f05eb2b7432 100644 --- a/compiler/rustc_save_analysis/src/lib.rs +++ b/compiler/rustc_save_analysis/src/lib.rs @@ -594,7 +594,9 @@ impl<'tcx> SaveContext<'tcx> { match self.tcx.hir().get(hir_id) { Node::TraitRef(tr) => tr.path.res, - Node::Item(&hir::Item { kind: hir::ItemKind::Use(path, _), .. }) => path.res, + Node::Item(&hir::Item { kind: hir::ItemKind::Use(path, _), .. }) => { + path.res.get(0).copied().unwrap_or(Res::Err) + } Node::PathSegment(seg) => { if seg.res != Res::Err { seg.res diff --git a/compiler/rustc_session/src/cgu_reuse_tracker.rs b/compiler/rustc_session/src/cgu_reuse_tracker.rs index 2336d99363f..8703e575465 100644 --- a/compiler/rustc_session/src/cgu_reuse_tracker.rs +++ b/compiler/rustc_session/src/cgu_reuse_tracker.rs @@ -121,7 +121,7 @@ impl CguReuseTracker { let at_least = if at_least { 1 } else { 0 }; IncorrectCguReuseType { span: error_span.0, - cgu_user_name: &cgu_user_name, + cgu_user_name, actual_reuse, expected_reuse, at_least, diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 927810351e9..d8c4b0845d0 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -622,7 +622,7 @@ impl OutputFilenames { /// should be placed on disk. pub fn output_path(&self, flavor: OutputType) -> PathBuf { let extension = flavor.extension(); - self.with_directory_and_extension(&self.out_directory, &extension) + self.with_directory_and_extension(&self.out_directory, extension) } /// Gets the path where a compilation artifact of the given type for the @@ -659,7 +659,7 @@ impl OutputFilenames { let temps_directory = self.temps_directory.as_ref().unwrap_or(&self.out_directory); - self.with_directory_and_extension(&temps_directory, &extension) + self.with_directory_and_extension(temps_directory, &extension) } pub fn with_extension(&self, extension: &str) -> PathBuf { @@ -1159,7 +1159,7 @@ impl CrateCheckConfig { values_target_family .extend(target.options.families.iter().map(|family| Symbol::intern(family))); values_target_arch.insert(Symbol::intern(&target.arch)); - values_target_endian.insert(Symbol::intern(&target.options.endian.as_str())); + values_target_endian.insert(Symbol::intern(target.options.endian.as_str())); values_target_env.insert(Symbol::intern(&target.options.env)); values_target_abi.insert(Symbol::intern(&target.options.abi)); values_target_vendor.insert(Symbol::intern(&target.options.vendor)); @@ -1846,7 +1846,7 @@ pub fn parse_target_triple( match matches.opt_str("target") { Some(target) if target.ends_with(".json") => { let path = Path::new(&target); - TargetTriple::from_path(&path).unwrap_or_else(|_| { + TargetTriple::from_path(path).unwrap_or_else(|_| { early_error(error_format, &format!("target file {path:?} does not exist")) }) } @@ -1992,7 +1992,7 @@ fn parse_native_lib_modifiers( ) -> (NativeLibKind, Option<bool>) { let mut verbatim = None; for modifier in modifiers.split(',') { - let (modifier, value) = match modifier.strip_prefix(&['+', '-']) { + let (modifier, value) = match modifier.strip_prefix(['+', '-']) { Some(m) => (m, modifier.starts_with('+')), None => early_error( error_format, @@ -2421,7 +2421,7 @@ pub fn build_session_options(matches: &getopts::Matches) -> Options { let mut search_paths = vec![]; for s in &matches.opt_strs("L") { - search_paths.push(SearchPath::from_cli_opt(&s, error_format)); + search_paths.push(SearchPath::from_cli_opt(s, error_format)); } let libs = parse_libs(matches, error_format); diff --git a/compiler/rustc_session/src/errors.rs b/compiler/rustc_session/src/errors.rs index 2f7055e3cc5..8cb9e1a6f1a 100644 --- a/compiler/rustc_session/src/errors.rs +++ b/compiler/rustc_session/src/errors.rs @@ -197,12 +197,12 @@ pub enum UnleashedFeatureHelp { #[derive(Diagnostic)] #[diag(session_invalid_literal_suffix)] -pub(crate) struct InvalidLiteralSuffix { +pub(crate) struct InvalidLiteralSuffix<'a> { #[primary_span] #[label] pub span: Span, // FIXME(#100717) - pub kind: String, + pub kind: &'a str, pub suffix: Symbol, } @@ -311,17 +311,13 @@ pub fn report_lit_error(sess: &ParseSess, err: LitError, lit: token::Lit, span: LitError::LexerError => {} LitError::InvalidSuffix => { if let Some(suffix) = suffix { - sess.emit_err(InvalidLiteralSuffix { - span, - kind: format!("{}", kind.descr()), - suffix, - }); + sess.emit_err(InvalidLiteralSuffix { span, kind: kind.descr(), suffix }); } } LitError::InvalidIntSuffix => { let suf = suffix.expect("suffix error with no suffix"); let suf = suf.as_str(); - if looks_like_width_suffix(&['i', 'u'], &suf) { + if looks_like_width_suffix(&['i', 'u'], suf) { // If it looks like a width, try to be helpful. sess.emit_err(InvalidIntLiteralWidth { span, width: suf[1..].into() }); } else if let Some(fixed) = fix_base_capitalisation(suf) { diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index f9ee202466f..01a9361e786 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -1414,8 +1414,6 @@ options! { "run all passes except codegen; no output"), no_generate_arange_section: bool = (false, parse_no_flag, [TRACKED], "omit DWARF address ranges that give faster lookups"), - no_interleave_lints: bool = (false, parse_no_flag, [UNTRACKED], - "execute lints separately; allows benchmarking individual lints"), no_leak_check: bool = (false, parse_no_flag, [UNTRACKED], "disable the 'leak check' for subtyping; unsound, but useful for tests"), no_link: bool = (false, parse_no_flag, [TRACKED], diff --git a/compiler/rustc_span/src/analyze_source_file.rs b/compiler/rustc_span/src/analyze_source_file.rs index 47aa4dfba42..d3c2c5113bc 100644 --- a/compiler/rustc_span/src/analyze_source_file.rs +++ b/compiler/rustc_span/src/analyze_source_file.rs @@ -247,7 +247,7 @@ fn analyze_source_file_generic( // The slow path: // This is either ASCII control character "DEL" or the beginning of // a multibyte char. Just decode to `char`. - let c = (&src[i..]).chars().next().unwrap(); + let c = src[i..].chars().next().unwrap(); char_len = c.len_utf8(); let pos = BytePos::from_usize(i) + output_offset; diff --git a/compiler/rustc_span/src/caching_source_map_view.rs b/compiler/rustc_span/src/caching_source_map_view.rs index fdabf404a37..886112769a9 100644 --- a/compiler/rustc_span/src/caching_source_map_view.rs +++ b/compiler/rustc_span/src/caching_source_map_view.rs @@ -165,7 +165,7 @@ impl<'sm> CachingSourceMapView<'sm> { Some(new_file_and_idx) } else { let file = &self.line_cache[oldest].file; - if !file_contains(&file, span_data.hi) { + if !file_contains(file, span_data.hi) { return None; } diff --git a/compiler/rustc_span/src/hygiene.rs b/compiler/rustc_span/src/hygiene.rs index 99a8b03fa39..038699154c7 100644 --- a/compiler/rustc_span/src/hygiene.rs +++ b/compiler/rustc_span/src/hygiene.rs @@ -381,7 +381,7 @@ impl HygieneData { } pub fn with<T, F: FnOnce(&mut HygieneData) -> T>(f: F) -> T { - with_session_globals(|session_globals| f(&mut *session_globals.hygiene_data.borrow_mut())) + with_session_globals(|session_globals| f(&mut session_globals.hygiene_data.borrow_mut())) } #[inline] diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index 1065cd384a9..cef4c6f79ce 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -238,7 +238,7 @@ impl RealFileName { pub fn remapped_path_if_available(&self) -> &Path { match self { RealFileName::LocalPath(p) - | RealFileName::Remapped { local_path: _, virtual_name: p } => &p, + | RealFileName::Remapped { local_path: _, virtual_name: p } => p, } } diff --git a/compiler/rustc_span/src/span_encoding.rs b/compiler/rustc_span/src/span_encoding.rs index b3de6741594..f0e91e5a6a9 100644 --- a/compiler/rustc_span/src/span_encoding.rs +++ b/compiler/rustc_span/src/span_encoding.rs @@ -166,5 +166,5 @@ impl SpanInterner { // If an interner exists, return it. Otherwise, prepare a fresh one. #[inline] fn with_span_interner<T, F: FnOnce(&mut SpanInterner) -> T>(f: F) -> T { - crate::with_session_globals(|session_globals| f(&mut *session_globals.span_interner.lock())) + crate::with_session_globals(|session_globals| f(&mut session_globals.span_interner.lock())) } diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 739716cfce3..9e446c96db3 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -1488,6 +1488,7 @@ symbols! { ty, type_alias_enum_variants, type_alias_impl_trait, + type_ascribe, type_ascription, type_changing_struct_update, type_id, @@ -1876,7 +1877,7 @@ impl<S: Encoder> Encodable<S> for Symbol { impl<D: Decoder> Decodable<D> for Symbol { #[inline] default fn decode(d: &mut D) -> Symbol { - Symbol::intern(&d.read_str()) + Symbol::intern(d.read_str()) } } diff --git a/compiler/rustc_target/src/abi/call/sparc64.rs b/compiler/rustc_target/src/abi/call/sparc64.rs index ec8f20fe692..c8b6ac5ae25 100644 --- a/compiler/rustc_target/src/abi/call/sparc64.rs +++ b/compiler/rustc_target/src/abi/call/sparc64.rs @@ -78,7 +78,7 @@ fn arg_scalar_pair<C>( where C: HasDataLayout, { - data = arg_scalar(cx, &scalar1, offset, data); + data = arg_scalar(cx, scalar1, offset, data); match (scalar1.primitive(), scalar2.primitive()) { (abi::F32, _) => offset += Reg::f32().size, (_, abi::F64) => offset += Reg::f64().size, @@ -90,7 +90,7 @@ where if (offset.bytes() % 4) != 0 && scalar2.primitive().is_float() { offset += Size::from_bytes(4 - (offset.bytes() % 4)); } - data = arg_scalar(cx, &scalar2, offset, data); + data = arg_scalar(cx, scalar2, offset, data); return data; } diff --git a/compiler/rustc_target/src/spec/aarch64_apple_darwin.rs b/compiler/rustc_target/src/spec/aarch64_apple_darwin.rs index 0f6bbc32317..e72cab629ff 100644 --- a/compiler/rustc_target/src/spec/aarch64_apple_darwin.rs +++ b/compiler/rustc_target/src/spec/aarch64_apple_darwin.rs @@ -1,4 +1,4 @@ -use super::apple_base::{macos_link_env_remove, macos_llvm_target, opts, Arch}; +use super::apple_base::{macos_llvm_target, opts, Arch}; use crate::spec::{FramePointer, SanitizerSet, Target, TargetOptions}; pub fn target() -> Target { @@ -10,8 +10,6 @@ pub fn target() -> Target { // FIXME: The leak sanitizer currently fails the tests, see #88132. base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::THREAD; - base.link_env_remove.to_mut().extend(macos_link_env_remove()); - Target { // Clang automatically chooses a more specific target based on // MACOSX_DEPLOYMENT_TARGET. To enable cross-language LTO to work diff --git a/compiler/rustc_target/src/spec/apple/tests.rs b/compiler/rustc_target/src/spec/apple/tests.rs index d062b36742d..3c90a5e7e93 100644 --- a/compiler/rustc_target/src/spec/apple/tests.rs +++ b/compiler/rustc_target/src/spec/apple/tests.rs @@ -1,6 +1,6 @@ use crate::spec::{ - aarch64_apple_ios_sim, aarch64_apple_watchos_sim, x86_64_apple_ios, x86_64_apple_tvos, - x86_64_apple_watchos_sim, + aarch64_apple_darwin, aarch64_apple_ios_sim, aarch64_apple_watchos_sim, i686_apple_darwin, + x86_64_apple_darwin, x86_64_apple_ios, x86_64_apple_tvos, x86_64_apple_watchos_sim, }; #[test] @@ -18,3 +18,18 @@ fn simulator_targets_set_abi() { assert_eq!(target.abi, "sim") } } + +#[test] +fn macos_link_environment_unmodified() { + let all_macos_targets = [ + aarch64_apple_darwin::target(), + i686_apple_darwin::target(), + x86_64_apple_darwin::target(), + ]; + + for target in all_macos_targets { + // macOS targets should only remove information for cross-compiling, but never + // for the host. + assert_eq!(target.link_env_remove, crate::spec::cvs!["IPHONEOS_DEPLOYMENT_TARGET"]); + } +} diff --git a/compiler/rustc_target/src/spec/apple_base.rs b/compiler/rustc_target/src/spec/apple_base.rs index 23c826cb1bd..7f8160b5dec 100644 --- a/compiler/rustc_target/src/spec/apple_base.rs +++ b/compiler/rustc_target/src/spec/apple_base.rs @@ -72,16 +72,6 @@ impl Arch { Arm64_sim => "apple-a12", } } - - fn link_env_remove(self) -> StaticCow<[StaticCow<str>]> { - match self { - Armv7 | Armv7k | Armv7s | Arm64 | Arm64_32 | I386 | I686 | X86_64 | X86_64_sim - | Arm64_sim => { - cvs!["MACOSX_DEPLOYMENT_TARGET"] - } - X86_64_macabi | Arm64_macabi => cvs!["IPHONEOS_DEPLOYMENT_TARGET"], - } - } } fn pre_link_args(os: &'static str, arch: Arch, abi: &'static str) -> LinkArgs { @@ -140,7 +130,7 @@ pub fn opts(os: &'static str, arch: Arch) -> TargetOptions { abi: abi.into(), os: os.into(), cpu: arch.target_cpu().into(), - link_env_remove: arch.link_env_remove(), + link_env_remove: link_env_remove(arch, os), vendor: "apple".into(), linker_flavor: LinkerFlavor::Darwin(Cc::Yes, Lld::No), // macOS has -dead_strip, which doesn't rely on function_sections @@ -211,20 +201,38 @@ pub fn macos_llvm_target(arch: Arch) -> String { format!("{}-apple-macosx{}.{}.0", arch.target_name(), major, minor) } -pub fn macos_link_env_remove() -> Vec<StaticCow<str>> { - let mut env_remove = Vec::with_capacity(2); - // Remove the `SDKROOT` environment variable if it's clearly set for the wrong platform, which - // may occur when we're linking a custom build script while targeting iOS for example. - if let Ok(sdkroot) = env::var("SDKROOT") { - if sdkroot.contains("iPhoneOS.platform") || sdkroot.contains("iPhoneSimulator.platform") { - env_remove.push("SDKROOT".into()) +fn link_env_remove(arch: Arch, os: &'static str) -> StaticCow<[StaticCow<str>]> { + // Apple platforms only officially support macOS as a host for any compilation. + // + // If building for macOS, we go ahead and remove any erronous environment state + // that's only applicable to cross-OS compilation. Always leave anything for the + // host OS alone though. + if os == "macos" { + let mut env_remove = Vec::with_capacity(2); + // Remove the `SDKROOT` environment variable if it's clearly set for the wrong platform, which + // may occur when we're linking a custom build script while targeting iOS for example. + if let Ok(sdkroot) = env::var("SDKROOT") { + if sdkroot.contains("iPhoneOS.platform") || sdkroot.contains("iPhoneSimulator.platform") + { + env_remove.push("SDKROOT".into()) + } + } + // Additionally, `IPHONEOS_DEPLOYMENT_TARGET` must not be set when using the Xcode linker at + // "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld", + // although this is apparently ignored when using the linker at "/usr/bin/ld". + env_remove.push("IPHONEOS_DEPLOYMENT_TARGET".into()); + env_remove.into() + } else { + // Otherwise if cross-compiling for a different OS/SDK, remove any part + // of the linking environment that's wrong and reversed. + match arch { + Armv7 | Armv7k | Armv7s | Arm64 | Arm64_32 | I386 | I686 | X86_64 | X86_64_sim + | Arm64_sim => { + cvs!["MACOSX_DEPLOYMENT_TARGET"] + } + X86_64_macabi | Arm64_macabi => cvs!["IPHONEOS_DEPLOYMENT_TARGET"], } } - // Additionally, `IPHONEOS_DEPLOYMENT_TARGET` must not be set when using the Xcode linker at - // "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld", - // although this is apparently ignored when using the linker at "/usr/bin/ld". - env_remove.push("IPHONEOS_DEPLOYMENT_TARGET".into()); - env_remove } fn ios_deployment_target() -> (u32, u32) { diff --git a/compiler/rustc_target/src/spec/i686_apple_darwin.rs b/compiler/rustc_target/src/spec/i686_apple_darwin.rs index 8b968af5ecc..ad22467ba9c 100644 --- a/compiler/rustc_target/src/spec/i686_apple_darwin.rs +++ b/compiler/rustc_target/src/spec/i686_apple_darwin.rs @@ -1,4 +1,4 @@ -use super::apple_base::{macos_link_env_remove, macos_llvm_target, opts, Arch}; +use super::apple_base::{macos_llvm_target, opts, Arch}; use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, StackProbeType, Target, TargetOptions}; pub fn target() -> Target { @@ -7,7 +7,6 @@ pub fn target() -> Target { let mut base = opts("macos", arch); base.max_atomic_width = Some(64); base.add_pre_link_args(LinkerFlavor::Darwin(Cc::Yes, Lld::No), &["-m32"]); - base.link_env_remove.to_mut().extend(macos_link_env_remove()); base.stack_probes = StackProbeType::X86; base.frame_pointer = FramePointer::Always; diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 0f8cfd7f538..d05b8aa4200 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -35,10 +35,7 @@ //! to the list specified by the target, rather than replace. use crate::abi::call::Conv; -use crate::abi::{ - AbiAndPrefAlign, AddressSpace, Align, Endian, Integer, Size, TargetDataLayout, - TargetDataLayoutErrors, -}; +use crate::abi::{Endian, Integer, Size, TargetDataLayout, TargetDataLayoutErrors}; use crate::json::{Json, ToJson}; use crate::spec::abi::{lookup as lookup_abi, Abi}; use crate::spec::crt_objects::{CrtObjects, LinkSelfContainedDefault}; @@ -1322,92 +1319,7 @@ pub struct Target { impl Target { pub fn parse_data_layout<'a>(&'a self) -> Result<TargetDataLayout, TargetDataLayoutErrors<'a>> { - // Parse an address space index from a string. - let parse_address_space = |s: &'a str, cause: &'a str| { - s.parse::<u32>().map(AddressSpace).map_err(|err| { - TargetDataLayoutErrors::InvalidAddressSpace { addr_space: s, cause, err } - }) - }; - - // Parse a bit count from a string. - let parse_bits = |s: &'a str, kind: &'a str, cause: &'a str| { - s.parse::<u64>().map_err(|err| TargetDataLayoutErrors::InvalidBits { - kind, - bit: s, - cause, - err, - }) - }; - - // Parse a size string. - let size = |s: &'a str, cause: &'a str| parse_bits(s, "size", cause).map(Size::from_bits); - - // Parse an alignment string. - let align = |s: &[&'a str], cause: &'a str| { - if s.is_empty() { - return Err(TargetDataLayoutErrors::MissingAlignment { cause }); - } - let align_from_bits = |bits| { - Align::from_bits(bits) - .map_err(|err| TargetDataLayoutErrors::InvalidAlignment { cause, err }) - }; - let abi = parse_bits(s[0], "alignment", cause)?; - let pref = s.get(1).map_or(Ok(abi), |pref| parse_bits(pref, "alignment", cause))?; - Ok(AbiAndPrefAlign { abi: align_from_bits(abi)?, pref: align_from_bits(pref)? }) - }; - - let mut dl = TargetDataLayout::default(); - let mut i128_align_src = 64; - for spec in self.data_layout.split('-') { - let spec_parts = spec.split(':').collect::<Vec<_>>(); - - match &*spec_parts { - ["e"] => dl.endian = Endian::Little, - ["E"] => dl.endian = Endian::Big, - [p] if p.starts_with('P') => { - dl.instruction_address_space = parse_address_space(&p[1..], "P")? - } - ["a", ref a @ ..] => dl.aggregate_align = align(a, "a")?, - ["f32", ref a @ ..] => dl.f32_align = align(a, "f32")?, - ["f64", ref a @ ..] => dl.f64_align = align(a, "f64")?, - [p @ "p", s, ref a @ ..] | [p @ "p0", s, ref a @ ..] => { - dl.pointer_size = size(s, p)?; - dl.pointer_align = align(a, p)?; - } - [s, ref a @ ..] if s.starts_with('i') => { - let Ok(bits) = s[1..].parse::<u64>() else { - size(&s[1..], "i")?; // For the user error. - continue; - }; - let a = align(a, s)?; - match bits { - 1 => dl.i1_align = a, - 8 => dl.i8_align = a, - 16 => dl.i16_align = a, - 32 => dl.i32_align = a, - 64 => dl.i64_align = a, - _ => {} - } - if bits >= i128_align_src && bits <= 128 { - // Default alignment for i128 is decided by taking the alignment of - // largest-sized i{64..=128}. - i128_align_src = bits; - dl.i128_align = a; - } - } - [s, ref a @ ..] if s.starts_with('v') => { - let v_size = size(&s[1..], "v")?; - let a = align(a, s)?; - if let Some(v) = dl.vector_align.iter_mut().find(|v| v.0 == v_size) { - v.1 = a; - continue; - } - // No existing entry, add a new one. - dl.vector_align.push((v_size, a)); - } - _ => {} // Ignore everything else. - } - } + let mut dl = TargetDataLayout::parse_from_llvm_datalayout_string(&self.data_layout)?; // Perform consistency checks against the Target information. if dl.endian != self.endian { @@ -2746,7 +2658,7 @@ impl Target { // Additionally look in the sysroot under `lib/rustlib/<triple>/target.json` // as a fallback. - let rustlib_path = crate::target_rustlib_path(&sysroot, &target_triple); + let rustlib_path = crate::target_rustlib_path(sysroot, target_triple); let p = PathBuf::from_iter([ Path::new(sysroot), Path::new(&rustlib_path), diff --git a/compiler/rustc_target/src/spec/x86_64_apple_darwin.rs b/compiler/rustc_target/src/spec/x86_64_apple_darwin.rs index c053031612c..9a3e7a80500 100644 --- a/compiler/rustc_target/src/spec/x86_64_apple_darwin.rs +++ b/compiler/rustc_target/src/spec/x86_64_apple_darwin.rs @@ -1,4 +1,4 @@ -use super::apple_base::{macos_link_env_remove, macos_llvm_target, opts, Arch}; +use super::apple_base::{macos_llvm_target, opts, Arch}; use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, SanitizerSet}; use crate::spec::{StackProbeType, Target, TargetOptions}; @@ -8,7 +8,6 @@ pub fn target() -> Target { base.max_atomic_width = Some(128); // core2 supports cmpxchg16b base.frame_pointer = FramePointer::Always; base.add_pre_link_args(LinkerFlavor::Darwin(Cc::Yes, Lld::No), &["-m64"]); - base.link_env_remove.to_mut().extend(macos_link_env_remove()); base.stack_probes = StackProbeType::X86; base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK | SanitizerSet::THREAD; diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs index 99724fb28db..899e30275a0 100644 --- a/compiler/rustc_trait_selection/src/traits/coherence.rs +++ b/compiler/rustc_trait_selection/src/traits/coherence.rs @@ -11,8 +11,8 @@ use crate::traits::select::IntercrateAmbiguityCause; use crate::traits::util::impl_subject_and_oblig; use crate::traits::SkipLeakCheck; use crate::traits::{ - self, Normalized, Obligation, ObligationCause, ObligationCtxt, PredicateObligation, - PredicateObligations, SelectionContext, + self, Obligation, ObligationCause, ObligationCtxt, PredicateObligation, PredicateObligations, + SelectionContext, }; use rustc_data_structures::fx::FxIndexSet; use rustc_errors::Diagnostic; @@ -30,6 +30,8 @@ use std::fmt::Debug; use std::iter; use std::ops::ControlFlow; +use super::NormalizeExt; + /// Whether we do the orphan check relative to this crate or /// to some remote crate. #[derive(Copy, Clone, Debug)] @@ -128,8 +130,8 @@ fn with_fresh_ty_vars<'cx, 'tcx>( predicates: tcx.predicates_of(impl_def_id).instantiate(tcx, impl_substs).predicates, }; - let Normalized { value: mut header, obligations } = - traits::normalize(selcx, param_env, ObligationCause::dummy(), header); + let InferOk { value: mut header, obligations } = + selcx.infcx.at(&ObligationCause::dummy(), param_env).normalize(header); header.predicates.extend(obligations.into_iter().map(|o| o.predicate)); header diff --git a/compiler/rustc_trait_selection/src/traits/engine.rs b/compiler/rustc_trait_selection/src/traits/engine.rs index 64d01ddb09a..c028e89e4ea 100644 --- a/compiler/rustc_trait_selection/src/traits/engine.rs +++ b/compiler/rustc_trait_selection/src/traits/engine.rs @@ -112,6 +112,24 @@ impl<'a, 'tcx> ObligationCtxt<'a, 'tcx> { self.register_infer_ok_obligations(infer_ok) } + /// Makes `expected <: actual`. + pub fn eq_exp<T>( + &self, + cause: &ObligationCause<'tcx>, + param_env: ty::ParamEnv<'tcx>, + a_is_expected: bool, + a: T, + b: T, + ) -> Result<(), TypeError<'tcx>> + where + T: ToTrace<'tcx>, + { + self.infcx + .at(cause, param_env) + .eq_exp(a_is_expected, a, b) + .map(|infer_ok| self.register_infer_ok_obligations(infer_ok)) + } + pub fn eq<T: ToTrace<'tcx>>( &self, cause: &ObligationCause<'tcx>, diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs index 049b24b3997..3379279dd15 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs @@ -9,7 +9,7 @@ use super::{ }; use crate::infer::error_reporting::{TyCategory, TypeAnnotationNeeded as ErrorCode}; use crate::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; -use crate::infer::{self, InferCtxt, TyCtxtInferExt}; +use crate::infer::{self, InferCtxt}; use crate::traits::query::evaluate_obligation::InferCtxtExt as _; use crate::traits::query::normalize::QueryNormalizeExt as _; use crate::traits::specialize::to_pretty_impl_header; @@ -71,7 +71,7 @@ pub trait InferCtxtExt<'tcx> { /// returns a span and `ArgKind` information that describes the /// arguments it expects. This can be supplied to /// `report_arg_count_mismatch`. - fn get_fn_like_arguments(&self, node: Node<'_>) -> Option<(Span, Vec<ArgKind>)>; + fn get_fn_like_arguments(&self, node: Node<'_>) -> Option<(Span, Option<Span>, Vec<ArgKind>)>; /// Reports an error when the number of arguments needed by a /// trait match doesn't match the number that the expression @@ -83,6 +83,7 @@ pub trait InferCtxtExt<'tcx> { expected_args: Vec<ArgKind>, found_args: Vec<ArgKind>, is_closure: bool, + closure_pipe_span: Option<Span>, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; /// Checks if the type implements one of `Fn`, `FnMut`, or `FnOnce` @@ -135,15 +136,16 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> { /// returns a span and `ArgKind` information that describes the /// arguments it expects. This can be supplied to /// `report_arg_count_mismatch`. - fn get_fn_like_arguments(&self, node: Node<'_>) -> Option<(Span, Vec<ArgKind>)> { + fn get_fn_like_arguments(&self, node: Node<'_>) -> Option<(Span, Option<Span>, Vec<ArgKind>)> { let sm = self.tcx.sess.source_map(); let hir = self.tcx.hir(); Some(match node { Node::Expr(&hir::Expr { - kind: hir::ExprKind::Closure(&hir::Closure { body, fn_decl_span, .. }), + kind: hir::ExprKind::Closure(&hir::Closure { body, fn_decl_span, fn_arg_span, .. }), .. }) => ( fn_decl_span, + fn_arg_span, hir.body(body) .params .iter() @@ -174,6 +176,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> { kind: hir::TraitItemKind::Fn(ref sig, _), .. }) => ( sig.span, + None, sig.decl .inputs .iter() @@ -188,7 +191,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> { ), Node::Ctor(ref variant_data) => { let span = variant_data.ctor_hir_id().map_or(DUMMY_SP, |id| hir.span(id)); - (span, vec![ArgKind::empty(); variant_data.fields().len()]) + (span, None, vec![ArgKind::empty(); variant_data.fields().len()]) } _ => panic!("non-FnLike node found: {:?}", node), }) @@ -204,6 +207,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> { expected_args: Vec<ArgKind>, found_args: Vec<ArgKind>, is_closure: bool, + closure_arg_span: Option<Span>, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { let kind = if is_closure { "closure" } else { "function" }; @@ -241,24 +245,13 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> { if let Some(found_span) = found_span { err.span_label(found_span, format!("takes {}", found_str)); - // move |_| { ... } - // ^^^^^^^^-- def_span - // - // move |_| { ... } - // ^^^^^-- prefix - let prefix_span = self.tcx.sess.source_map().span_until_non_whitespace(found_span); - // move |_| { ... } - // ^^^-- pipe_span - let pipe_span = - if let Some(span) = found_span.trim_start(prefix_span) { span } else { found_span }; - // Suggest to take and ignore the arguments with expected_args_length `_`s if // found arguments is empty (assume the user just wants to ignore args in this case). // For example, if `expected_args_length` is 2, suggest `|_, _|`. if found_args.is_empty() && is_closure { let underscores = vec!["_"; expected_args.len()].join(", "); err.span_suggestion_verbose( - pipe_span, + closure_arg_span.unwrap_or(found_span), &format!( "consider changing the closure to take and ignore the expected argument{}", pluralize!(expected_args.len()) @@ -1252,13 +1245,14 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { obligation.cause.code(), ) } else { - let (closure_span, found) = found_did + let (closure_span, closure_arg_span, found) = found_did .and_then(|did| { let node = self.tcx.hir().get_if_local(did)?; - let (found_span, found) = self.get_fn_like_arguments(node)?; - Some((Some(found_span), found)) + let (found_span, closure_arg_span, found) = + self.get_fn_like_arguments(node)?; + Some((Some(found_span), closure_arg_span, found)) }) - .unwrap_or((found_span, found)); + .unwrap_or((found_span, None, found)); self.report_arg_count_mismatch( span, @@ -1266,6 +1260,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { expected, found, found_trait_ty.is_closure(), + closure_arg_span, ) } } @@ -1577,32 +1572,26 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } self.probe(|_| { - let mut err = error.err; - let mut values = None; + let ocx = ObligationCtxt::new_in_snapshot(self); // try to find the mismatched types to report the error with. // // this can fail if the problem was higher-ranked, in which // cause I have no idea for a good error message. let bound_predicate = predicate.kind(); - if let ty::PredicateKind::Clause(ty::Clause::Projection(data)) = + let (values, err) = if let ty::PredicateKind::Clause(ty::Clause::Projection(data)) = bound_predicate.skip_binder() { - let mut selcx = SelectionContext::new(self); let data = self.replace_bound_vars_with_fresh_vars( obligation.cause.span, infer::LateBoundRegionConversionTime::HigherRankedType, bound_predicate.rebind(data), ); - let mut obligations = vec![]; - // FIXME(normalization): Change this to use `At::normalize` - let normalized_ty = super::normalize_projection_type( - &mut selcx, + let normalized_ty = ocx.normalize( + &obligation.cause, obligation.param_env, - data.projection_ty, - obligation.cause.clone(), - 0, - &mut obligations, + self.tcx + .mk_projection(data.projection_ty.item_def_id, data.projection_ty.substs), ); debug!(?obligation.cause, ?obligation.param_env); @@ -1618,19 +1607,34 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { | ObligationCauseCode::ObjectCastObligation(..) | ObligationCauseCode::OpaqueType ); - if let Err(new_err) = self.at(&obligation.cause, obligation.param_env).eq_exp( + let expected_ty = data.term.ty().unwrap(); + + // constrain inference variables a bit more to nested obligations from normalize so + // we can have more helpful errors. + ocx.select_where_possible(); + + if let Err(new_err) = ocx.eq_exp( + &obligation.cause, + obligation.param_env, is_normalized_ty_expected, normalized_ty, - data.term, + expected_ty, ) { - values = Some((data, is_normalized_ty_expected, normalized_ty, data.term)); - err = new_err; + (Some((data, is_normalized_ty_expected, normalized_ty, expected_ty)), new_err) + } else { + (None, error.err) } - } + } else { + (None, error.err) + }; let msg = values .and_then(|(predicate, _, normalized_ty, expected_ty)| { - self.maybe_detailed_projection_msg(predicate, normalized_ty, expected_ty) + self.maybe_detailed_projection_msg( + predicate, + normalized_ty.into(), + expected_ty.into(), + ) }) .unwrap_or_else(|| format!("type mismatch resolving `{}`", predicate)); let mut diag = struct_span_err!(self.tcx.sess, obligation.cause.span, E0271, "{msg}"); @@ -1672,11 +1676,11 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { &mut diag, &obligation.cause, secondary_span, - values.map(|(_, is_normalized_ty_expected, normalized_ty, term)| { + values.map(|(_, is_normalized_ty_expected, normalized_ty, expected_ty)| { infer::ValuePairs::Terms(ExpectedFound::new( is_normalized_ty_expected, - normalized_ty, - term, + normalized_ty.into(), + expected_ty.into(), )) }), err, @@ -1930,14 +1934,6 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { return report(normalized_impl_candidates, err); } - let normalize = |candidate| { - let infcx = self.tcx.infer_ctxt().build(); - infcx - .at(&ObligationCause::dummy(), ty::ParamEnv::empty()) - .query_normalize(candidate) - .map_or(candidate, |normalized| normalized.value) - }; - // Sort impl candidates so that ordering is consistent for UI tests. // because the ordering of `impl_candidates` may not be deterministic: // https://github.com/rust-lang/rust/pull/57475#issuecomment-455519507 @@ -1947,7 +1943,11 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let mut normalized_impl_candidates_and_similarities = impl_candidates .into_iter() .map(|ImplCandidate { trait_ref, similarity }| { - let normalized = normalize(trait_ref); + // FIXME(compiler-errors): This should be using `NormalizeExt::normalize` + let normalized = self + .at(&ObligationCause::dummy(), ty::ParamEnv::empty()) + .query_normalize(trait_ref) + .map_or(trait_ref, |normalized| normalized.value); (similarity, normalized) }) .collect::<Vec<_>>(); diff --git a/compiler/rustc_trait_selection/src/traits/mod.rs b/compiler/rustc_trait_selection/src/traits/mod.rs index 371367f0deb..c6818a4e57d 100644 --- a/compiler/rustc_trait_selection/src/traits/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/mod.rs @@ -56,7 +56,6 @@ pub use self::object_safety::astconv_object_safety_violations; pub use self::object_safety::is_vtable_safe_method; pub use self::object_safety::MethodViolationCode; pub use self::object_safety::ObjectSafetyViolation; -pub(crate) use self::project::{normalize, normalize_to}; pub use self::project::{normalize_projection_type, NormalizeExt}; pub use self::select::{EvaluationCache, SelectionCache, SelectionContext}; pub use self::select::{EvaluationResult, IntercrateAmbiguityCause, OverflowError}; diff --git a/compiler/rustc_trait_selection/src/traits/project.rs b/compiler/rustc_trait_selection/src/traits/project.rs index 113803cd179..051660be9c4 100644 --- a/compiler/rustc_trait_selection/src/traits/project.rs +++ b/compiler/rustc_trait_selection/src/traits/project.rs @@ -50,6 +50,10 @@ pub type ProjectionTyObligation<'tcx> = Obligation<'tcx, ty::ProjectionTy<'tcx>> pub(super) struct InProgress; pub trait NormalizeExt<'tcx> { + /// Normalize a value using the `AssocTypeNormalizer`. + /// + /// This normalization should be used when the type contains inference variables or the + /// projection may be fallible. fn normalize<T: TypeFoldable<'tcx>>(&self, t: T) -> InferOk<'tcx, T>; } @@ -57,7 +61,7 @@ impl<'tcx> NormalizeExt<'tcx> for At<'_, 'tcx> { fn normalize<T: TypeFoldable<'tcx>>(&self, value: T) -> InferOk<'tcx, T> { let mut selcx = SelectionContext::new(self.infcx); let Normalized { value, obligations } = - normalize(&mut selcx, self.param_env, self.cause.clone(), value); + normalize_with_depth(&mut selcx, self.param_env, self.cause.clone(), 0, value); InferOk { value, obligations } } } @@ -303,37 +307,6 @@ fn project_and_unify_type<'cx, 'tcx>( } } -/// Normalizes any associated type projections in `value`, replacing -/// them with a fully resolved type where possible. The return value -/// combines the normalized result and any additional obligations that -/// were incurred as result. -pub(crate) fn normalize<'a, 'b, 'tcx, T>( - selcx: &'a mut SelectionContext<'b, 'tcx>, - param_env: ty::ParamEnv<'tcx>, - cause: ObligationCause<'tcx>, - value: T, -) -> Normalized<'tcx, T> -where - T: TypeFoldable<'tcx>, -{ - let mut obligations = Vec::new(); - let value = normalize_to(selcx, param_env, cause, value, &mut obligations); - Normalized { value, obligations } -} - -pub(crate) fn normalize_to<'a, 'b, 'tcx, T>( - selcx: &'a mut SelectionContext<'b, 'tcx>, - param_env: ty::ParamEnv<'tcx>, - cause: ObligationCause<'tcx>, - value: T, - obligations: &mut Vec<PredicateObligation<'tcx>>, -) -> T -where - T: TypeFoldable<'tcx>, -{ - normalize_with_depth_to(selcx, param_env, cause, 0, value, obligations) -} - /// As `normalize`, but with a custom depth. pub(crate) fn normalize_with_depth<'a, 'b, 'tcx, T>( selcx: &'a mut SelectionContext<'b, 'tcx>, @@ -2324,10 +2297,11 @@ fn confirm_impl_trait_in_trait_candidate<'tcx>( }, )); - let ty = super::normalize_to( + let ty = normalize_with_depth_to( selcx, obligation.param_env, cause.clone(), + obligation.recursion_depth + 1, tcx.bound_trait_impl_trait_tys(impl_fn_def_id) .map_bound(|tys| { tys.map_or_else(|_| tcx.ty_error(), |tys| tys[&obligation.predicate.item_def_id]) diff --git a/compiler/rustc_trait_selection/src/traits/query/normalize.rs b/compiler/rustc_trait_selection/src/traits/query/normalize.rs index 1aed6630870..f899321fc01 100644 --- a/compiler/rustc_trait_selection/src/traits/query/normalize.rs +++ b/compiler/rustc_trait_selection/src/traits/query/normalize.rs @@ -23,6 +23,13 @@ use super::NoSolution; pub use rustc_middle::traits::query::NormalizationResult; pub trait QueryNormalizeExt<'tcx> { + /// Normalize a value using the `QueryNormalizer`. + /// + /// This normalization should *only* be used when the projection does not + /// have possible ambiguity or may not be well-formed. + /// + /// After codegen, when lifetimes do not matter, it is preferable to instead + /// use [`TyCtxt::normalize_erasing_regions`], which wraps this procedure. fn query_normalize<T>(&self, value: T) -> Result<Normalized<'tcx, T>, NoSolution> where T: TypeFoldable<'tcx>; 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 fe5135661b5..e4b70f0d2ff 100644 --- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs +++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs @@ -203,7 +203,9 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // type/region parameters. let self_ty = obligation.self_ty().skip_binder(); match self_ty.kind() { - ty::Generator(..) => { + // async constructs get lowered to a special kind of generator that + // should *not* `impl Generator`. + ty::Generator(did, ..) if !self.tcx().generator_is_async(*did) => { debug!(?self_ty, ?obligation, "assemble_generator_candidates",); candidates.vec.push(GeneratorCandidate); @@ -223,6 +225,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { ) { let self_ty = obligation.self_ty().skip_binder(); if let ty::Generator(did, ..) = self_ty.kind() { + // async constructs get lowered to a special kind of generator that + // should directly `impl Future`. if self.tcx().generator_is_async(*did) { debug!(?self_ty, ?obligation, "assemble_future_candidates",); diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 515f3a34988..8835f2cc1b9 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -371,23 +371,28 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { if !candidate_set.ambiguous && no_candidates_apply { let trait_ref = stack.obligation.predicate.skip_binder().trait_ref; - let self_ty = trait_ref.self_ty(); - let (trait_desc, self_desc) = with_no_trimmed_paths!({ - let trait_desc = trait_ref.print_only_trait_path().to_string(); - let self_desc = if self_ty.has_concrete_skeleton() { - Some(self_ty.to_string()) + if !trait_ref.references_error() { + let self_ty = trait_ref.self_ty(); + let (trait_desc, self_desc) = with_no_trimmed_paths!({ + let trait_desc = trait_ref.print_only_trait_path().to_string(); + let self_desc = if self_ty.has_concrete_skeleton() { + Some(self_ty.to_string()) + } else { + None + }; + (trait_desc, self_desc) + }); + let cause = if let Conflict::Upstream = conflict { + IntercrateAmbiguityCause::UpstreamCrateUpdate { + trait_desc, + self_desc, + } } else { - None + IntercrateAmbiguityCause::DownstreamCrate { trait_desc, self_desc } }; - (trait_desc, self_desc) - }); - let cause = if let Conflict::Upstream = conflict { - IntercrateAmbiguityCause::UpstreamCrateUpdate { trait_desc, self_desc } - } else { - IntercrateAmbiguityCause::DownstreamCrate { trait_desc, self_desc } - }; - debug!(?cause, "evaluate_stack: pushing cause"); - self.intercrate_ambiguity_causes.as_mut().unwrap().insert(cause); + debug!(?cause, "evaluate_stack: pushing cause"); + self.intercrate_ambiguity_causes.as_mut().unwrap().insert(cause); + } } } } diff --git a/library/alloc/src/collections/vec_deque/mod.rs b/library/alloc/src/collections/vec_deque/mod.rs index 86d77182bcc..4866c53e7d5 100644 --- a/library/alloc/src/collections/vec_deque/mod.rs +++ b/library/alloc/src/collections/vec_deque/mod.rs @@ -566,10 +566,9 @@ impl<T, A: Allocator> VecDeque<T, A> { /// /// let deque: VecDeque<u32> = VecDeque::new(); /// ``` - // FIXME: This should probably be const #[inline] #[unstable(feature = "allocator_api", issue = "32838")] - pub fn new_in(alloc: A) -> VecDeque<T, A> { + pub const fn new_in(alloc: A) -> VecDeque<T, A> { VecDeque { head: 0, len: 0, buf: RawVec::new_in(alloc) } } @@ -2152,7 +2151,7 @@ impl<T, A: Allocator> VecDeque<T, A> { self.head = tail; } else { - // ´free` is smaller than both `head_len` and `tail_len`. + // `free` is smaller than both `head_len` and `tail_len`. // the general algorithm for this first moves the slices // right next to each other and then uses `slice::rotate` // to rotate them into place: @@ -2700,12 +2699,18 @@ impl<T, A: Allocator> IndexMut<usize> for VecDeque<T, A> { #[stable(feature = "rust1", since = "1.0.0")] impl<T> FromIterator<T> for VecDeque<T> { + #[inline] fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> VecDeque<T> { - let iterator = iter.into_iter(); - let (lower, _) = iterator.size_hint(); - let mut deq = VecDeque::with_capacity(lower); - deq.extend(iterator); - deq + // Since converting is O(1) now, might as well re-use that logic + // (including things like the `vec::IntoIter`→`Vec` specialization) + // especially as that could save us some monomorphiziation work + // if one uses the same iterators (like slice ones) with both. + return from_iter_via_vec(iter.into_iter()); + + #[inline] + fn from_iter_via_vec<U>(iter: impl Iterator<Item = U>) -> VecDeque<U> { + Vec::from_iter(iter).into() + } } } @@ -2792,6 +2797,7 @@ impl<T, A: Allocator> From<Vec<T, A>> for VecDeque<T, A> { /// In its current implementation, this is a very cheap /// conversion. This isn't yet a guarantee though, and /// shouldn't be relied on. + #[inline] fn from(other: Vec<T, A>) -> Self { let (ptr, len, cap, alloc) = other.into_raw_parts_with_alloc(); Self { head: 0, len, buf: unsafe { RawVec::from_raw_parts_in(ptr, cap, alloc) } } diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs index e147af2ce39..ba34ab6800f 100644 --- a/library/alloc/src/vec/mod.rs +++ b/library/alloc/src/vec/mod.rs @@ -1070,7 +1070,8 @@ impl<T, A: Allocator> Vec<T, A> { /// Converts the vector into [`Box<[T]>`][owned slice]. /// - /// Note that this will drop any excess capacity. + /// If the vector has excess capacity, its items will be moved into a + /// newly-allocated buffer with exactly the right capacity. /// /// [owned slice]: Box /// @@ -3223,6 +3224,14 @@ impl<T, A: Allocator> From<Vec<T, A>> for Box<[T], A> { /// ``` /// assert_eq!(Box::from(vec![1, 2, 3]), vec![1, 2, 3].into_boxed_slice()); /// ``` + /// + /// Any excess capacity is removed: + /// ``` + /// let mut vec = Vec::with_capacity(10); + /// vec.extend([1, 2, 3]); + /// + /// assert_eq!(Box::from(vec), vec![1, 2, 3].into_boxed_slice()); + /// ``` fn from(v: Vec<T, A>) -> Self { v.into_boxed_slice() } diff --git a/library/core/src/cmp.rs b/library/core/src/cmp.rs index 5db5cbfc3df..949896e5748 100644 --- a/library/core/src/cmp.rs +++ b/library/core/src/cmp.rs @@ -29,8 +29,7 @@ use crate::marker::StructuralPartialEq; use self::Ordering::*; -/// Trait for equality comparisons which are [partial equivalence -/// relations](https://en.wikipedia.org/wiki/Partial_equivalence_relation). +/// Trait for equality comparisons. /// /// `x.eq(y)` can also be written `x == y`, and `x.ne(y)` can be written `x != y`. /// We use the easier-to-read infix notation in the remainder of this documentation. @@ -38,6 +37,8 @@ use self::Ordering::*; /// This trait allows for partial equality, for types that do not have a full /// equivalence relation. For example, in floating point numbers `NaN != NaN`, /// so floating point types implement `PartialEq` but not [`trait@Eq`]. +/// Formally speaking, when `Rhs == Self`, this trait corresponds to a [partial equivalence +/// relation](https://en.wikipedia.org/wiki/Partial_equivalence_relation). /// /// Implementations must ensure that `eq` and `ne` are consistent with each other: /// diff --git a/library/core/src/intrinsics/mir.rs b/library/core/src/intrinsics/mir.rs index 1bacdc39148..8ba1c122884 100644 --- a/library/core/src/intrinsics/mir.rs +++ b/library/core/src/intrinsics/mir.rs @@ -80,6 +80,8 @@ define!("mir_goto", fn Goto(destination: BasicBlock) -> BasicBlock); define!("mir_retag", fn Retag<T>(place: T)); define!("mir_retag_raw", fn RetagRaw<T>(place: T)); define!("mir_move", fn Move<T>(place: T) -> T); +define!("mir_static", fn Static<T>(s: T) -> &'static T); +define!("mir_static_mut", fn StaticMut<T>(s: T) -> *mut T); /// Convenience macro for generating custom MIR. /// @@ -90,10 +92,14 @@ pub macro mir { ( $(let $local_decl:ident $(: $local_decl_ty:ty)? ;)* - $entry_block:block + { + $($entry:tt)* + } $( - $block_name:ident = $block:block + $block_name:ident = { + $($block:tt)* + } )* ) => {{ // First, we declare all basic blocks. @@ -109,11 +115,22 @@ pub macro mir { let $local_decl $(: $local_decl_ty)? ; )* + ::core::intrinsics::mir::__internal_extract_let!($($entry)*); + $( + ::core::intrinsics::mir::__internal_extract_let!($($block)*); + )* + { // Finally, the contents of the basic blocks - $entry_block; + ::core::intrinsics::mir::__internal_remove_let!({ + {} + { $($entry)* } + }); $( - $block; + ::core::intrinsics::mir::__internal_remove_let!({ + {} + { $($block)* } + }); )* RET @@ -121,3 +138,152 @@ pub macro mir { } }} } + +/// Helper macro that extracts the `let` declarations out of a bunch of statements. +/// +/// This macro is written using the "statement muncher" strategy. Each invocation parses the first +/// statement out of the input, does the appropriate thing with it, and then recursively calls the +/// same macro on the remainder of the input. +#[doc(hidden)] +pub macro __internal_extract_let { + // If it's a `let` like statement, keep the `let` + ( + let $var:ident $(: $ty:ty)? = $expr:expr; $($rest:tt)* + ) => { + let $var $(: $ty)?; + ::core::intrinsics::mir::__internal_extract_let!($($rest)*); + }, + // Due to #86730, we have to handle const blocks separately + ( + let $var:ident $(: $ty:ty)? = const $block:block; $($rest:tt)* + ) => { + let $var $(: $ty)?; + ::core::intrinsics::mir::__internal_extract_let!($($rest)*); + }, + // Otherwise, output nothing + ( + $stmt:stmt; $($rest:tt)* + ) => { + ::core::intrinsics::mir::__internal_extract_let!($($rest)*); + }, + ( + $expr:expr + ) => {} +} + +/// Helper macro that removes the `let` declarations from a bunch of statements. +/// +/// Because expression position macros cannot expand to statements + expressions, we need to be +/// slightly creative here. The general strategy is also statement munching as above, but the output +/// of the macro is "stored" in the subsequent macro invocation. Easiest understood via example: +/// ```text +/// invoke!( +/// { +/// { +/// x = 5; +/// } +/// { +/// let d = e; +/// Call() +/// } +/// } +/// ) +/// ``` +/// becomes +/// ```text +/// invoke!( +/// { +/// { +/// x = 5; +/// d = e; +/// } +/// { +/// Call() +/// } +/// } +/// ) +/// ``` +#[doc(hidden)] +pub macro __internal_remove_let { + // If it's a `let` like statement, remove the `let` + ( + { + { + $($already_parsed:tt)* + } + { + let $var:ident $(: $ty:ty)? = $expr:expr; + $($rest:tt)* + } + } + ) => { ::core::intrinsics::mir::__internal_remove_let!( + { + { + $($already_parsed)* + $var = $expr; + } + { + $($rest)* + } + } + )}, + // Due to #86730 , we have to handle const blocks separately + ( + { + { + $($already_parsed:tt)* + } + { + let $var:ident $(: $ty:ty)? = const $block:block; + $($rest:tt)* + } + } + ) => { ::core::intrinsics::mir::__internal_remove_let!( + { + { + $($already_parsed)* + $var = const $block; + } + { + $($rest)* + } + } + )}, + // Otherwise, keep going + ( + { + { + $($already_parsed:tt)* + } + { + $stmt:stmt; + $($rest:tt)* + } + } + ) => { ::core::intrinsics::mir::__internal_remove_let!( + { + { + $($already_parsed)* + $stmt; + } + { + $($rest)* + } + } + )}, + ( + { + { + $($already_parsed:tt)* + } + { + $expr:expr + } + } + ) => { + { + $($already_parsed)* + $expr + } + }, +} diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs index c20ca69a1c6..f29cd357d6b 100644 --- a/library/core/src/macros/mod.rs +++ b/library/core/src/macros/mod.rs @@ -1546,6 +1546,18 @@ pub(crate) mod builtin { /* compiler built-in */ } + /// Unstable placeholder for type ascription. + #[rustc_builtin_macro] + #[unstable( + feature = "type_ascription", + issue = "23416", + reason = "placeholder syntax for type ascription" + )] + #[cfg(not(bootstrap))] + pub macro type_ascribe($expr:expr, $ty:ty) { + /* compiler built-in */ + } + /// Unstable implementation detail of the `rustc` compiler, do not use. #[rustc_builtin_macro] #[stable(feature = "rust1", since = "1.0.0")] diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs index 141cbc7669b..6a339b338d9 100644 --- a/library/core/src/num/nonzero.rs +++ b/library/core/src/num/nonzero.rs @@ -1249,12 +1249,11 @@ macro_rules! nonzero_bits { /// # Examples /// /// ``` - /// #![feature(nonzero_bits)] #[doc = concat!("# use std::num::", stringify!($Ty), ";")] /// #[doc = concat!("assert_eq!(", stringify!($Ty), "::BITS, ", stringify!($Int), "::BITS);")] /// ``` - #[unstable(feature = "nonzero_bits", issue = "94881")] + #[stable(feature = "nonzero_bits", since = "CURRENT_RUSTC_VERSION")] pub const BITS: u32 = <$Int>::BITS; } )+ diff --git a/library/core/src/panicking.rs b/library/core/src/panicking.rs index 4fd1eb23413..a704a00faaa 100644 --- a/library/core/src/panicking.rs +++ b/library/core/src/panicking.rs @@ -38,10 +38,9 @@ use crate::panic::{Location, PanicInfo}; /// site as much as possible (so that `panic!()` has as low an impact /// on (e.g.) the inlining of other functions as possible), by moving /// the actual formatting into this shared place. -#[cold] // If panic_immediate_abort, inline the abort call, // otherwise avoid inlining because of it is cold path. -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] #[cfg_attr(feature = "panic_immediate_abort", inline)] #[track_caller] #[lang = "panic_fmt"] // needed for const-evaluated panics @@ -67,8 +66,7 @@ pub const fn panic_fmt(fmt: fmt::Arguments<'_>) -> ! { /// Like panic_fmt, but without unwinding and track_caller to reduce the impact on codesize. /// Also just works on `str`, as a `fmt::Arguments` needs more space to be passed. -#[cold] -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] #[cfg_attr(feature = "panic_immediate_abort", inline)] #[rustc_nounwind] pub fn panic_str_nounwind(msg: &'static str) -> ! { @@ -96,10 +94,9 @@ pub fn panic_str_nounwind(msg: &'static str) -> ! { // above. /// The underlying implementation of libcore's `panic!` macro when no formatting is used. -#[cold] // never inline unless panic_immediate_abort to avoid code // bloat at the call sites as much as possible -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] #[cfg_attr(feature = "panic_immediate_abort", inline)] #[track_caller] #[rustc_const_unstable(feature = "core_panic", issue = "none")] @@ -138,8 +135,8 @@ pub const fn panic_display<T: fmt::Display>(x: &T) -> ! { panic_fmt(format_args!("{}", *x)); } -#[cold] -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] +#[cfg_attr(feature = "panic_immediate_abort", inline)] #[track_caller] #[lang = "panic_bounds_check"] // needed by codegen for panic on OOB array/slice access fn panic_bounds_check(index: usize, len: usize) -> ! { @@ -154,8 +151,8 @@ fn panic_bounds_check(index: usize, len: usize) -> ! { /// /// This function is called directly by the codegen backend, and must not have /// any extra arguments (including those synthesized by track_caller). -#[cold] -#[inline(never)] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] +#[cfg_attr(feature = "panic_immediate_abort", inline)] #[lang = "panic_no_unwind"] // needed by codegen for panic in nounwind function #[rustc_nounwind] fn panic_no_unwind() -> ! { @@ -185,7 +182,8 @@ pub enum AssertKind { } /// Internal function for `assert_eq!` and `assert_ne!` macros -#[cold] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] +#[cfg_attr(feature = "panic_immediate_abort", inline)] #[track_caller] #[doc(hidden)] pub fn assert_failed<T, U>( @@ -202,7 +200,8 @@ where } /// Internal function for `assert_match!` -#[cold] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] +#[cfg_attr(feature = "panic_immediate_abort", inline)] #[track_caller] #[doc(hidden)] pub fn assert_matches_failed<T: fmt::Debug + ?Sized>( @@ -221,6 +220,8 @@ pub fn assert_matches_failed<T: fmt::Debug + ?Sized>( } /// Non-generic version of the above functions, to avoid code bloat. +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] +#[cfg_attr(feature = "panic_immediate_abort", inline)] #[track_caller] fn assert_failed_inner( kind: AssertKind, diff --git a/library/core/src/prelude/v1.rs b/library/core/src/prelude/v1.rs index d3d255a802d..2d67d742c68 100644 --- a/library/core/src/prelude/v1.rs +++ b/library/core/src/prelude/v1.rs @@ -98,3 +98,11 @@ pub use crate::macros::builtin::cfg_accessible; reason = "`cfg_eval` is a recently implemented feature" )] pub use crate::macros::builtin::cfg_eval; + +#[unstable( + feature = "type_ascription", + issue = "23416", + reason = "placeholder syntax for type ascription" +)] +#[cfg(not(bootstrap))] +pub use crate::macros::builtin::type_ascribe; diff --git a/library/core/src/slice/index.rs b/library/core/src/slice/index.rs index 6d2f7330d5d..c295a0e0645 100644 --- a/library/core/src/slice/index.rs +++ b/library/core/src/slice/index.rs @@ -31,9 +31,8 @@ where } } -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] #[cfg_attr(feature = "panic_immediate_abort", inline)] -#[cold] #[track_caller] #[rustc_const_unstable(feature = "const_slice_index", issue = "none")] const fn slice_start_index_len_fail(index: usize, len: usize) -> ! { @@ -48,19 +47,20 @@ const fn slice_start_index_len_fail(index: usize, len: usize) -> ! { } // FIXME const-hack +#[inline] #[track_caller] fn slice_start_index_len_fail_rt(index: usize, len: usize) -> ! { panic!("range start index {index} out of range for slice of length {len}"); } +#[inline] #[track_caller] const fn slice_start_index_len_fail_ct(_: usize, _: usize) -> ! { panic!("slice start index is out of range for slice"); } -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] #[cfg_attr(feature = "panic_immediate_abort", inline)] -#[cold] #[track_caller] #[rustc_const_unstable(feature = "const_slice_index", issue = "none")] const fn slice_end_index_len_fail(index: usize, len: usize) -> ! { @@ -71,19 +71,20 @@ const fn slice_end_index_len_fail(index: usize, len: usize) -> ! { } // FIXME const-hack +#[inline] #[track_caller] fn slice_end_index_len_fail_rt(index: usize, len: usize) -> ! { panic!("range end index {index} out of range for slice of length {len}"); } +#[inline] #[track_caller] const fn slice_end_index_len_fail_ct(_: usize, _: usize) -> ! { panic!("slice end index is out of range for slice"); } -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] #[cfg_attr(feature = "panic_immediate_abort", inline)] -#[cold] #[track_caller] #[rustc_const_unstable(feature = "const_slice_index", issue = "none")] const fn slice_index_order_fail(index: usize, end: usize) -> ! { @@ -92,27 +93,27 @@ const fn slice_index_order_fail(index: usize, end: usize) -> ! { } // FIXME const-hack +#[inline] #[track_caller] fn slice_index_order_fail_rt(index: usize, end: usize) -> ! { panic!("slice index starts at {index} but ends at {end}"); } +#[inline] #[track_caller] const fn slice_index_order_fail_ct(_: usize, _: usize) -> ! { panic!("slice index start is larger than end"); } -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] #[cfg_attr(feature = "panic_immediate_abort", inline)] -#[cold] #[track_caller] const fn slice_start_index_overflow_fail() -> ! { panic!("attempted to index slice from after maximum usize"); } -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] #[cfg_attr(feature = "panic_immediate_abort", inline)] -#[cold] #[track_caller] const fn slice_end_index_overflow_fail() -> ! { panic!("attempted to index slice up to maximum usize"); diff --git a/library/std/Cargo.toml b/library/std/Cargo.toml index c10bfde4ddf..a7aefc26b97 100644 --- a/library/std/Cargo.toml +++ b/library/std/Cargo.toml @@ -15,7 +15,7 @@ cfg-if = { version = "1.0", features = ['rustc-dep-of-std'] } panic_unwind = { path = "../panic_unwind", optional = true } panic_abort = { path = "../panic_abort" } core = { path = "../core" } -libc = { version = "0.2.135", default-features = false, features = ['rustc-dep-of-std'] } +libc = { version = "0.2.138", default-features = false, features = ['rustc-dep-of-std'] } compiler_builtins = { version = "0.1.82" } profiler_builtins = { path = "../profiler_builtins", optional = true } unwind = { path = "../unwind" } diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs index 188ff00e1f8..f357d505fe8 100644 --- a/library/std/src/fs.rs +++ b/library/std/src/fs.rs @@ -401,7 +401,7 @@ impl File { /// Ok(()) /// } /// ``` - #[unstable(feature = "file_create_new", issue = "none")] + #[unstable(feature = "file_create_new", issue = "105135")] 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()) } @@ -510,8 +510,9 @@ impl File { /// # Errors /// /// This function will return an error if the file is not opened for writing. - /// Also, std::io::ErrorKind::InvalidInput will be returned if the desired - /// length would cause an overflow due to the implementation specifics. + /// Also, [`std::io::ErrorKind::InvalidInput`](crate::io::ErrorKind::InvalidInput) + /// will be returned if the desired length would cause an overflow due to + /// the implementation specifics. /// /// # Examples /// diff --git a/library/std/src/panicking.rs b/library/std/src/panicking.rs index d4976a469cc..1039835bbbd 100644 --- a/library/std/src/panicking.rs +++ b/library/std/src/panicking.rs @@ -594,8 +594,8 @@ pub fn begin_panic_handler(info: &PanicInfo<'_>) -> ! { // lang item for CTFE panic support // never inline unless panic_immediate_abort to avoid code // bloat at the call sites as much as possible -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never))] -#[cold] +#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] +#[cfg_attr(feature = "panic_immediate_abort", inline)] #[track_caller] #[rustc_do_not_const_check] // hooked by const-eval pub const fn begin_panic<M: Any + Send>(msg: M) -> ! { diff --git a/library/std/src/prelude/v1.rs b/library/std/src/prelude/v1.rs index d5ac16e6b94..a5a798078eb 100644 --- a/library/std/src/prelude/v1.rs +++ b/library/std/src/prelude/v1.rs @@ -85,6 +85,15 @@ pub use core::prelude::v1::cfg_accessible; )] pub use core::prelude::v1::cfg_eval; +// Do not `doc(no_inline)` either. +#[unstable( + feature = "type_ascription", + issue = "23416", + reason = "placeholder syntax for type ascription" +)] +#[cfg(not(bootstrap))] +pub use core::prelude::v1::type_ascribe; + // The file so far is equivalent to src/libcore/prelude/v1.rs, // and below to src/liballoc/prelude.rs. // Those files are duplicated rather than using glob imports diff --git a/library/test/src/cli.rs b/library/test/src/cli.rs index 8be32183fe7..524658bce13 100644 --- a/library/test/src/cli.rs +++ b/library/test/src/cli.rs @@ -26,6 +26,10 @@ pub struct TestOpts { pub test_threads: Option<usize>, pub skip: Vec<String>, pub time_options: Option<TestTimeOptions>, + /// Stop at first failing test. + /// May run a few more tests due to threading, but will + /// abort as soon as possible. + pub fail_fast: bool, pub options: Options, } @@ -296,6 +300,7 @@ fn parse_opts_impl(matches: getopts::Matches) -> OptRes { skip, time_options, options, + fail_fast: false, }; Ok(test_opts) diff --git a/library/test/src/console.rs b/library/test/src/console.rs index 8cb88016b23..a3c39f71f08 100644 --- a/library/test/src/console.rs +++ b/library/test/src/console.rs @@ -293,7 +293,7 @@ pub fn run_tests_console(opts: &TestOpts, tests: Vec<TestDescAndFn>) -> io::Resu run_tests(opts, tests, |x| on_test_event(&x, &mut st, &mut *out))?; st.exec_time = start_time.map(|t| TestSuiteExecTime(t.elapsed())); - assert!(st.current_test_count() == st.total); + assert!(opts.fail_fast || st.current_test_count() == st.total); out.write_run_finish(&st) } diff --git a/library/test/src/lib.rs b/library/test/src/lib.rs index 27320e8dbc5..256c9e8d141 100644 --- a/library/test/src/lib.rs +++ b/library/test/src/lib.rs @@ -384,8 +384,17 @@ where let mut completed_test = rx.recv().unwrap(); RunningTest { join_handle }.join(&mut completed_test); + let fail_fast = match completed_test.result { + TrIgnored | TrOk | TrBench(_) => false, + TrFailed | TrFailedMsg(_) | TrTimedFail => opts.fail_fast, + }; + let event = TestEvent::TeResult(completed_test); notify_about_test_event(event)?; + + if fail_fast { + return Ok(()); + } } } else { while pending > 0 || !remaining.is_empty() { @@ -431,9 +440,20 @@ where let running_test = running_tests.remove(&completed_test.id).unwrap(); running_test.join(&mut completed_test); + let fail_fast = match completed_test.result { + TrIgnored | TrOk | TrBench(_) => false, + TrFailed | TrFailedMsg(_) | TrTimedFail => opts.fail_fast, + }; + let event = TestEvent::TeResult(completed_test); notify_about_test_event(event)?; pending -= 1; + + if fail_fast { + // Prevent remaining test threads from panicking + std::mem::forget(rx); + return Ok(()); + } } } diff --git a/library/test/src/tests.rs b/library/test/src/tests.rs index 7b2e6707f9d..3a0260f86cf 100644 --- a/library/test/src/tests.rs +++ b/library/test/src/tests.rs @@ -51,6 +51,7 @@ impl TestOpts { skip: vec![], time_options: None, options: Options::new(), + fail_fast: false, } } } diff --git a/src/bootstrap/Cargo.lock b/src/bootstrap/Cargo.lock index fe8a028dfd3..efe8ae3169f 100644 --- a/src/bootstrap/Cargo.lock +++ b/src/bootstrap/Cargo.lock @@ -12,15 +12,6 @@ dependencies = [ ] [[package]] -name = "ansi_term" -version = "0.12.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2" -dependencies = [ - "winapi", -] - -[[package]] name = "autocfg" version = "1.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -108,18 +99,18 @@ checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc" [[package]] name = "cpufeatures" -version = "0.2.2" +version = "0.2.5" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "59a6001667ab124aebae2a495118e11d30984c3a653e99d86d58971708cf5e4b" +checksum = "28d997bd5e24a5928dd43e46dc529867e207907fe0b239c3477d924f7f2ca320" dependencies = [ "libc", ] [[package]] name = "crossbeam-channel" -version = "0.5.4" +version = "0.5.6" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5aaa7bd5fb665c6864b5f963dd9097905c54125909c7aa94c9e18507cdbe6c53" +checksum = "c2dd04ddaf88237dc3b8d8f9a3c1004b506b54b3313403944054d23c0870c521" dependencies = [ "cfg-if", "crossbeam-utils", @@ -127,9 +118,9 @@ dependencies = [ [[package]] name = "crossbeam-deque" -version = "0.8.1" +version = "0.8.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6455c0ca19f0d2fbf751b908d5c55c1f5cbc65e03c4225427254b46890bdde1e" +checksum = "715e8152b692bba2d374b53d4875445368fdf21a94751410af607a5ac677d1fc" dependencies = [ "cfg-if", "crossbeam-epoch", @@ -138,26 +129,24 @@ dependencies = [ [[package]] name = "crossbeam-epoch" -version = "0.9.8" +version = "0.9.13" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1145cf131a2c6ba0615079ab6a638f7e1973ac9c2634fcbeaaad6114246efe8c" +checksum = "01a9af1f4c2ef74bb8aa1f7e19706bc72d03598c8a570bb5de72243c7a9d9d5a" dependencies = [ "autocfg", "cfg-if", "crossbeam-utils", - "lazy_static", "memoffset", "scopeguard", ] [[package]] name = "crossbeam-utils" -version = "0.8.8" +version = "0.8.14" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0bf124c720b7686e3c2663cf54062ab0f68a88af2fb6a030e87e30bf721fcb38" +checksum = "4fb766fa798726286dbbb842f174001dab8abc7b627a1dd86e0b7222a95d929f" dependencies = [ "cfg-if", - "lazy_static", ] [[package]] @@ -379,9 +368,9 @@ checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d" [[package]] name = "memoffset" -version = "0.6.5" +version = "0.7.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce" +checksum = "5de893c32cde5f383baa4c04c5d6dbdd735cfd4a794b0debdb2bb1b421da5ff4" dependencies = [ "autocfg", ] @@ -447,14 +436,14 @@ checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae" [[package]] name = "pretty_assertions" -version = "0.7.2" +version = "1.3.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1cab0e7c02cf376875e9335e0ba1da535775beb5450d21e1dffca068818ed98b" +checksum = "a25e9bcb20aa780fd0bb16b72403a9064d6b3f22f026946029acb941a50af755" dependencies = [ - "ansi_term", "ctor", "diff", "output_vt100", + "yansi", ] [[package]] @@ -477,11 +466,10 @@ dependencies = [ [[package]] name = "rayon" -version = "1.5.3" +version = "1.6.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "bd99e5772ead8baa5215278c9b15bf92087709e9c1b2d1f97cdb5a183c933a7d" +checksum = "1e060280438193c554f654141c9ea9417886713b7acd75974c85b18a69a88e0b" dependencies = [ - "autocfg", "crossbeam-deque", "either", "rayon-core", @@ -489,9 +477,9 @@ dependencies = [ [[package]] name = "rayon-core" -version = "1.9.3" +version = "1.10.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "258bcdb5ac6dad48491bb2992db6b7cf74878b0384908af124823d118c99683f" +checksum = "cac410af5d00ab6884528b4ab69d1e8e146e8d471201800fa1b4524126de6ad3" dependencies = [ "crossbeam-channel", "crossbeam-deque", @@ -803,3 +791,9 @@ checksum = "c179869f34fc7c01830d3ce7ea2086bc3a07e0d35289b667d0a8bf910258926c" dependencies = [ "lzma-sys", ] + +[[package]] +name = "yansi" +version = "0.5.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec" diff --git a/src/bootstrap/Cargo.toml b/src/bootstrap/Cargo.toml index 8751a71caf1..ccc7ec1fce9 100644 --- a/src/bootstrap/Cargo.toml +++ b/src/bootstrap/Cargo.toml @@ -72,7 +72,7 @@ features = [ ] [dev-dependencies] -pretty_assertions = "0.7" +pretty_assertions = "1.2" [features] build-metrics = ["sysinfo"] diff --git a/src/bootstrap/flags.rs b/src/bootstrap/flags.rs index 2001e29bd2e..37a8eb884ef 100644 --- a/src/bootstrap/flags.rs +++ b/src/bootstrap/flags.rs @@ -143,7 +143,7 @@ pub enum Subcommand { args: Vec<String>, }, Setup { - profile: Profile, + profile: Option<Profile>, }, } @@ -628,14 +628,15 @@ Arguments: |path| format!("{} is not a valid UTF8 string", path.to_string_lossy()) )); - profile_string.parse().unwrap_or_else(|err| { + let profile = profile_string.parse().unwrap_or_else(|err| { eprintln!("error: {}", err); eprintln!("help: the available profiles are:"); eprint!("{}", Profile::all_for_help("- ")); crate::detail_exit(1); - }) + }); + Some(profile) } else { - t!(crate::setup::interactive_path()) + None }; Subcommand::Setup { profile } } diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs index a3d1893afbb..3ed53452309 100644 --- a/src/bootstrap/lib.rs +++ b/src/bootstrap/lib.rs @@ -542,16 +542,6 @@ impl Build { metrics: metrics::BuildMetrics::init(), }; - build.verbose("finding compilers"); - cc_detect::find(&mut build); - // When running `setup`, the profile is about to change, so any requirements we have now may - // be different on the next invocation. Don't check for them until the next time x.py is - // run. This is ok because `setup` never runs any build commands, so it won't fail if commands are missing. - if !matches!(build.config.cmd, Subcommand::Setup { .. }) { - build.verbose("running sanity check"); - sanity::check(&mut build); - } - // If local-rust is the same major.minor as the current version, then force a // local-rebuild let local_version_verbose = @@ -567,16 +557,34 @@ impl Build { build.local_rebuild = true; } - // Make sure we update these before gathering metadata so we don't get an error about missing - // Cargo.toml files. - let rust_submodules = - ["src/tools/rust-installer", "src/tools/cargo", "library/backtrace", "library/stdarch"]; - for s in rust_submodules { - build.update_submodule(Path::new(s)); - } + build.verbose("finding compilers"); + cc_detect::find(&mut build); + // When running `setup`, the profile is about to change, so any requirements we have now may + // be different on the next invocation. Don't check for them until the next time x.py is + // run. This is ok because `setup` never runs any build commands, so it won't fail if commands are missing. + // + // Similarly, for `setup` we don't actually need submodules or cargo metadata. + if !matches!(build.config.cmd, Subcommand::Setup { .. }) { + build.verbose("running sanity check"); + sanity::check(&mut build); - build.verbose("learning about cargo"); - metadata::build(&mut build); + // Make sure we update these before gathering metadata so we don't get an error about missing + // Cargo.toml files. + let rust_submodules = [ + "src/tools/rust-installer", + "src/tools/cargo", + "library/backtrace", + "library/stdarch", + ]; + for s in rust_submodules { + build.update_submodule(Path::new(s)); + } + // Now, update all existing submodules. + build.update_existing_submodules(); + + build.verbose("learning about cargo"); + metadata::build(&mut build); + } build } @@ -647,15 +655,28 @@ impl Build { if !update(true).status().map_or(false, |status| status.success()) { self.run(&mut update(false)); } - self.run(Command::new("git").args(&["stash", "push"]).current_dir(&absolute_path)); + + // Save any local changes, but avoid running `git stash pop` if there are none (since it will exit with an error). + let has_local_modifications = !self.try_run( + Command::new("git") + .args(&["diff-index", "--quiet", "HEAD"]) + .current_dir(&absolute_path), + ); + if has_local_modifications { + self.run(Command::new("git").args(&["stash", "push"]).current_dir(&absolute_path)); + } + self.run(Command::new("git").args(&["reset", "-q", "--hard"]).current_dir(&absolute_path)); self.run(Command::new("git").args(&["clean", "-qdfx"]).current_dir(&absolute_path)); - self.run(Command::new("git").args(&["stash", "pop"]).current_dir(absolute_path)); + + if has_local_modifications { + self.run(Command::new("git").args(&["stash", "pop"]).current_dir(absolute_path)); + } } /// If any submodule has been initialized already, sync it unconditionally. /// This avoids contributors checking in a submodule change by accident. - pub fn maybe_update_submodules(&self) { + pub fn update_existing_submodules(&self) { // Avoid running git when there isn't a git checkout. if !self.config.submodules(&self.rust_info()) { return; @@ -684,8 +705,6 @@ impl Build { job::setup(self); } - self.maybe_update_submodules(); - if let Subcommand::Format { check, paths } = &self.config.cmd { return format::format(&builder::Builder::new(&self), *check, &paths); } diff --git a/src/bootstrap/setup.rs b/src/bootstrap/setup.rs index 04480277fe0..c7f98a7d0d1 100644 --- a/src/bootstrap/setup.rs +++ b/src/bootstrap/setup.rs @@ -1,15 +1,13 @@ +use crate::Config; use crate::{t, VERSION}; -use crate::{Config, TargetSelection}; use std::env::consts::EXE_SUFFIX; use std::fmt::Write as _; use std::fs::File; +use std::io::Write; use std::path::{Path, PathBuf, MAIN_SEPARATOR}; use std::process::Command; use std::str::FromStr; -use std::{ - env, fmt, fs, - io::{self, Write}, -}; +use std::{fmt, fs, io}; #[derive(Clone, Copy, Debug, Eq, PartialEq)] pub enum Profile { @@ -81,38 +79,10 @@ impl fmt::Display for Profile { } } -pub fn setup(config: &Config, profile: Profile) { - let path = &config.config.clone().unwrap_or(PathBuf::from("config.toml")); - - if path.exists() { - eprintln!( - "error: you asked `x.py` to setup a new config file, but one already exists at `{}`", - path.display() - ); - eprintln!("help: try adding `profile = \"{}\"` at the top of {}", profile, path.display()); - eprintln!( - "note: this will use the configuration in {}", - profile.include_path(&config.src).display() - ); - crate::detail_exit(1); - } - - let settings = format!( - "# Includes one of the default files in src/bootstrap/defaults\n\ - profile = \"{}\"\n\ - changelog-seen = {}\n", - profile, VERSION - ); - t!(fs::write(path, settings)); - - let include_path = profile.include_path(&config.src); - println!("`x.py` will now use the configuration at {}", include_path.display()); - - let build = TargetSelection::from_user(&env!("BUILD_TRIPLE")); +pub fn setup(config: &Config, profile: Option<Profile>) { + let profile = profile.unwrap_or_else(|| t!(interactive_path())); let stage_path = - ["build", build.rustc_target_arg(), "stage1"].join(&MAIN_SEPARATOR.to_string()); - - println!(); + ["build", config.build.rustc_target_arg(), "stage1"].join(&MAIN_SEPARATOR.to_string()); if !rustup_installed() && profile != Profile::User { eprintln!("`rustup` is not installed; cannot link `stage1` toolchain"); @@ -134,8 +104,6 @@ pub fn setup(config: &Config, profile: Profile) { Profile::User => &["dist", "build"], }; - println!(); - t!(install_git_hook_maybe(&config)); println!(); @@ -150,6 +118,36 @@ pub fn setup(config: &Config, profile: Profile) { "For more suggestions, see https://rustc-dev-guide.rust-lang.org/building/suggested.html" ); } + + let path = &config.config.clone().unwrap_or(PathBuf::from("config.toml")); + setup_config_toml(path, profile, config); +} + +fn setup_config_toml(path: &PathBuf, profile: Profile, config: &Config) { + if path.exists() { + eprintln!(); + eprintln!( + "error: you asked `x.py` to setup a new config file, but one already exists at `{}`", + path.display() + ); + eprintln!("help: try adding `profile = \"{}\"` at the top of {}", profile, path.display()); + eprintln!( + "note: this will use the configuration in {}", + profile.include_path(&config.src).display() + ); + crate::detail_exit(1); + } + + let settings = format!( + "# Includes one of the default files in src/bootstrap/defaults\n\ + profile = \"{}\"\n\ + changelog-seen = {}\n", + profile, VERSION + ); + t!(fs::write(path, settings)); + + let include_path = profile.include_path(&config.src); + println!("`x.py` will now use the configuration at {}", include_path.display()); } fn rustup_installed() -> bool { @@ -303,7 +301,18 @@ pub fn interactive_path() -> io::Result<Profile> { // install a git hook to automatically run tidy --bless, if they want fn install_git_hook_maybe(config: &Config) -> io::Result<()> { + let git = t!(config.git().args(&["rev-parse", "--git-common-dir"]).output().map(|output| { + assert!(output.status.success(), "failed to run `git`"); + PathBuf::from(t!(String::from_utf8(output.stdout)).trim()) + })); + let dst = git.join("hooks").join("pre-push"); + if dst.exists() { + // The git hook has already been set up, or the user already has a custom hook. + return Ok(()); + } + let mut input = String::new(); + println!(); println!( "Rust's CI will automatically fail if it doesn't pass `tidy`, the internal tool for ensuring code quality. If you'd like, x.py can install a git hook for you that will automatically run `tidy --bless` before @@ -329,12 +338,6 @@ undesirable, simply delete the `pre-push` file from .git/hooks." if should_install { let src = config.src.join("src").join("etc").join("pre-push.sh"); - let git = - t!(config.git().args(&["rev-parse", "--git-common-dir"]).output().map(|output| { - assert!(output.status.success(), "failed to run `git`"); - PathBuf::from(t!(String::from_utf8(output.stdout)).trim()) - })); - let dst = git.join("hooks").join("pre-push"); match fs::hard_link(src, &dst) { Err(e) => eprintln!( "error: could not create hook {}: do you already have the git hook installed?\n{}", diff --git a/src/ci/docker/host-aarch64/aarch64-gnu/Dockerfile b/src/ci/docker/host-aarch64/aarch64-gnu/Dockerfile index e54d0eafb40..699938c3718 100644 --- a/src/ci/docker/host-aarch64/aarch64-gnu/Dockerfile +++ b/src/ci/docker/host-aarch64/aarch64-gnu/Dockerfile @@ -14,7 +14,8 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins gdb \ libssl-dev \ pkg-config \ - xz-utils + xz-utils \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh diff --git a/src/ci/docker/host-x86_64/dist-i686-linux/Dockerfile b/src/ci/docker/host-x86_64/dist-i686-linux/Dockerfile index cd86d9fb584..ea4a2a2427d 100644 --- a/src/ci/docker/host-x86_64/dist-i686-linux/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-i686-linux/Dockerfile @@ -32,7 +32,8 @@ RUN yum upgrade -y && \ wget \ xz \ zlib-devel.i686 \ - zlib-devel.x86_64 + zlib-devel.x86_64 \ + && yum clean all RUN mkdir -p /rustroot/bin && ln -s /usr/bin/cmake3 /rustroot/bin/cmake diff --git a/src/ci/docker/host-x86_64/dist-x86_64-freebsd/Dockerfile b/src/ci/docker/host-x86_64/dist-x86_64-freebsd/Dockerfile index f9b1fa8951a..377d4a9ce5e 100644 --- a/src/ci/docker/host-x86_64/dist-x86_64-freebsd/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-x86_64-freebsd/Dockerfile @@ -15,7 +15,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ xz-utils \ wget \ libssl-dev \ - pkg-config + pkg-config \ + && rm -rf /var/lib/apt/lists/* COPY scripts/freebsd-toolchain.sh /tmp/ RUN /tmp/freebsd-toolchain.sh x86_64 diff --git a/src/ci/docker/host-x86_64/dist-x86_64-illumos/Dockerfile b/src/ci/docker/host-x86_64/dist-x86_64-illumos/Dockerfile index c2e44ead51e..4e46bdee5ac 100644 --- a/src/ci/docker/host-x86_64/dist-x86_64-illumos/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-x86_64-illumos/Dockerfile @@ -11,7 +11,8 @@ RUN apt-get update && \ apt-get install -y --no-install-recommends \ libgmp-dev \ libmpfr-dev \ - libmpc-dev + libmpc-dev \ + && rm -rf /var/lib/apt/lists/* COPY scripts/illumos-toolchain.sh /tmp/ diff --git a/src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile b/src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile index 423aba06cca..6bdc88e18f5 100644 --- a/src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile @@ -32,7 +32,8 @@ RUN yum upgrade -y && \ wget \ xz \ zlib-devel.i686 \ - zlib-devel.x86_64 + zlib-devel.x86_64 \ + && yum clean all RUN mkdir -p /rustroot/bin && ln -s /usr/bin/cmake3 /rustroot/bin/cmake diff --git a/src/ci/docker/host-x86_64/dist-x86_64-musl/Dockerfile b/src/ci/docker/host-x86_64/dist-x86_64-musl/Dockerfile index 51645a81853..13eaf7fce8c 100644 --- a/src/ci/docker/host-x86_64/dist-x86_64-musl/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-x86_64-musl/Dockerfile @@ -16,7 +16,8 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins gdb \ patch \ libssl-dev \ - pkg-config + pkg-config \ + && rm -rf /var/lib/apt/lists/* WORKDIR /build/ diff --git a/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile b/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile index dd74726f856..e2b66c2cff1 100644 --- a/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile +++ b/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile @@ -15,7 +15,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ gdb \ zlib1g-dev \ lib32z1-dev \ - xz-utils + xz-utils \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ diff --git a/src/ci/docker/host-x86_64/i686-gnu/Dockerfile b/src/ci/docker/host-x86_64/i686-gnu/Dockerfile index 0c36cfd66bd..cb6559707d9 100644 --- a/src/ci/docker/host-x86_64/i686-gnu/Dockerfile +++ b/src/ci/docker/host-x86_64/i686-gnu/Dockerfile @@ -15,7 +15,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ gdb \ zlib1g-dev \ lib32z1-dev \ - xz-utils + xz-utils \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ diff --git a/src/ci/docker/host-x86_64/mingw-check/Dockerfile b/src/ci/docker/host-x86_64/mingw-check/Dockerfile index 52a7776153d..40caa7c5013 100644 --- a/src/ci/docker/host-x86_64/mingw-check/Dockerfile +++ b/src/ci/docker/host-x86_64/mingw-check/Dockerfile @@ -20,20 +20,20 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ xz-utils \ libssl-dev \ pkg-config \ - mingw-w64 + mingw-w64 \ + && rm -rf /var/lib/apt/lists/* RUN curl -sL https://nodejs.org/dist/v16.9.0/node-v16.9.0-linux-x64.tar.xz | tar -xJ ENV PATH="/node-v16.9.0-linux-x64/bin:${PATH}" # Install es-check # Pin its version to prevent unrelated CI failures due to future es-check versions. -RUN npm install es-check@6.1.1 -g -RUN npm install eslint@8.6.0 -g +RUN npm install es-check@6.1.1 eslint@8.6.0 -g COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh COPY host-x86_64/mingw-check/reuse-requirements.txt /tmp/ -RUN pip3 install --no-deps --require-hashes -r /tmp/reuse-requirements.txt +RUN pip3 install --no-deps --no-cache-dir --require-hashes -r /tmp/reuse-requirements.txt COPY host-x86_64/mingw-check/validate-toolstate.sh /scripts/ COPY host-x86_64/mingw-check/validate-error-codes.sh /scripts/ diff --git a/src/ci/docker/host-x86_64/test-various/Dockerfile b/src/ci/docker/host-x86_64/test-various/Dockerfile index 7c09e3a582f..cf4451f8b33 100644 --- a/src/ci/docker/host-x86_64/test-various/Dockerfile +++ b/src/ci/docker/host-x86_64/test-various/Dockerfile @@ -21,7 +21,8 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins ovmf \ qemu-efi-aarch64 \ qemu-system-arm \ - qemu-system-x86 + qemu-system-x86 \ + && rm -rf /var/lib/apt/lists/* RUN curl -sL https://nodejs.org/dist/v15.14.0/node-v15.14.0-linux-x64.tar.xz | \ tar -xJ diff --git a/src/ci/docker/host-x86_64/wasm32/Dockerfile b/src/ci/docker/host-x86_64/wasm32/Dockerfile index 9e37c2822e8..ef1fde1c3b9 100644 --- a/src/ci/docker/host-x86_64/wasm32/Dockerfile +++ b/src/ci/docker/host-x86_64/wasm32/Dockerfile @@ -13,7 +13,8 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins sudo \ gdb \ xz-utils \ - bzip2 + bzip2 \ + && rm -rf /var/lib/apt/lists/* COPY scripts/emscripten.sh /scripts/ RUN bash /scripts/emscripten.sh diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-aux/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-aux/Dockerfile index d55d5b56ad3..e08c4e1e8b7 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-aux/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-aux/Dockerfile @@ -19,7 +19,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ llvm-dev \ libfreetype6-dev \ libexpat1-dev \ - tidy + tidy \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-debug/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-debug/Dockerfile index 739045248fe..c2b002055a8 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-debug/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-debug/Dockerfile @@ -23,7 +23,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ pkg-config \ xz-utils \ lld \ - clang + clang \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile index 80a004501a8..7e640c49f01 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile @@ -15,7 +15,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ gdb \ xz-utils \ libssl-dev \ - pkg-config + pkg-config \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-13-stage1/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-13-stage1/Dockerfile index 23f2215c2d9..16976a9428e 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-13-stage1/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-13-stage1/Dockerfile @@ -21,7 +21,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ pkg-config \ zlib1g-dev \ xz-utils \ - nodejs + nodejs \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-13/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-13/Dockerfile index 8f6831bc54e..c3b47c3510d 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-13/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-13/Dockerfile @@ -24,15 +24,15 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ pkg-config \ zlib1g-dev \ xz-utils \ - nodejs + nodejs \ # Install powershell so we can test x.ps1 on Linux -RUN apt-get update && \ - apt-get install -y apt-transport-https software-properties-common && \ + apt-transport-https software-properties-common && \ curl -s "https://packages.microsoft.com/config/ubuntu/$(lsb_release -rs)/packages-microsoft-prod.deb" > packages-microsoft-prod.deb && \ dpkg -i packages-microsoft-prod.deb && \ apt-get update && \ - apt-get install -y powershell + apt-get install -y powershell \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-nopt/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-nopt/Dockerfile index 77510d7ac62..9fdc78406fb 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-nopt/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-nopt/Dockerfile @@ -15,7 +15,8 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins gdb \ libssl-dev \ pkg-config \ - xz-utils + xz-utils \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile index 4350ca20586..501d2781646 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile @@ -14,10 +14,9 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ libssl-dev \ sudo \ xz-utils \ - tidy + tidy \ # Install dependencies for chromium browser -RUN apt-get install -y \ gconf-service \ libasound2 \ libatk1.0-0 \ @@ -56,7 +55,8 @@ RUN apt-get install -y \ libnss3 \ lsb-release \ xdg-utils \ - wget + wget \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh diff --git a/src/ci/docker/host-x86_64/x86_64-gnu/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu/Dockerfile index 88c182a4d43..5b9581f72a6 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu/Dockerfile @@ -15,7 +15,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \ gdb \ libssl-dev \ pkg-config \ - xz-utils + xz-utils \ + && rm -rf /var/lib/apt/lists/* COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh diff --git a/src/ci/docker/scripts/freebsd-toolchain.sh b/src/ci/docker/scripts/freebsd-toolchain.sh index 4a4cac1b723..17cd456b995 100755 --- a/src/ci/docker/scripts/freebsd-toolchain.sh +++ b/src/ci/docker/scripts/freebsd-toolchain.sh @@ -53,7 +53,7 @@ files_to_extract=( for lib in c cxxrt gcc_s m thr util; do files_to_extract=("${files_to_extract[@]}" "./lib/lib${lib}.*" "./usr/lib/lib${lib}.*") done -for lib in c++ c_nonshared compiler_rt execinfo gcc pthread rt ssp_nonshared procstat devstat kvm; do +for lib in c++ c_nonshared compiler_rt execinfo gcc pthread rt ssp_nonshared procstat devstat kvm memstat; do files_to_extract=("${files_to_extract[@]}" "./usr/lib/lib${lib}.*") done diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml index 10de2e8d5ea..75e44fe4987 100644 --- a/src/ci/github-actions/ci.yml +++ b/src/ci/github-actions/ci.yml @@ -77,7 +77,7 @@ x--expand-yaml-anchors--remove: <<: *base-job - &job-macos-xl - os: macos-latest # We don't have an XL builder for this + os: macos-12-xl <<: *base-job - &job-windows-xl diff --git a/src/librustdoc/Cargo.toml b/src/librustdoc/Cargo.toml index 1e7b4fe15b6..0271c27b4f5 100644 --- a/src/librustdoc/Cargo.toml +++ b/src/librustdoc/Cargo.toml @@ -32,7 +32,7 @@ features = ["fmt", "env-filter", "smallvec", "parking_lot", "ansi"] rayon = "1.5.1" [dev-dependencies] -expect-test = "1.0" +expect-test = "1.4.0" [features] jemalloc = [] diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index b18788a033f..2a2a9470d25 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -12,7 +12,7 @@ pub(crate) mod utils; use rustc_ast as ast; use rustc_attr as attr; -use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexSet}; +use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet, IndexEntry}; use rustc_hir as hir; use rustc_hir::def::{CtorKind, DefKind, Res}; use rustc_hir::def_id::{DefId, LOCAL_CRATE}; @@ -598,47 +598,105 @@ pub(crate) fn clean_generics<'tcx>( }) .collect::<Vec<_>>(); + let mut bound_predicates = FxIndexMap::default(); + let mut region_predicates = FxIndexMap::default(); + let mut eq_predicates = ThinVec::default(); + for pred in gens.predicates.iter().filter_map(|x| clean_where_predicate(x, cx)) { + match pred { + WherePredicate::BoundPredicate { ty, bounds, bound_params } => { + match bound_predicates.entry(ty) { + IndexEntry::Vacant(v) => { + v.insert((bounds, bound_params)); + } + IndexEntry::Occupied(mut o) => { + // we merge both bounds. + for bound in bounds { + if !o.get().0.contains(&bound) { + o.get_mut().0.push(bound); + } + } + for bound_param in bound_params { + if !o.get().1.contains(&bound_param) { + o.get_mut().1.push(bound_param); + } + } + } + } + } + WherePredicate::RegionPredicate { lifetime, bounds } => { + match region_predicates.entry(lifetime) { + IndexEntry::Vacant(v) => { + v.insert(bounds); + } + IndexEntry::Occupied(mut o) => { + // we merge both bounds. + for bound in bounds { + if !o.get().contains(&bound) { + o.get_mut().push(bound); + } + } + } + } + } + WherePredicate::EqPredicate { lhs, rhs, bound_params } => { + eq_predicates.push(WherePredicate::EqPredicate { lhs, rhs, bound_params }); + } + } + } + let mut params = ThinVec::with_capacity(gens.params.len()); + // In this loop, we gather the generic parameters (`<'a, B: 'a>`) and check if they have + // bounds in the where predicates. If so, we move their bounds into the where predicates + // while also preventing duplicates. for p in gens.params.iter().filter(|p| !is_impl_trait(p) && !is_elided_lifetime(p)) { - let p = clean_generic_param(cx, Some(gens), p); + let mut p = clean_generic_param(cx, Some(gens), p); + match &mut p.kind { + GenericParamDefKind::Lifetime { ref mut outlives } => { + if let Some(region_pred) = region_predicates.get_mut(&Lifetime(p.name)) { + // We merge bounds in the `where` clause. + for outlive in outlives.drain(..) { + let outlive = GenericBound::Outlives(outlive); + if !region_pred.contains(&outlive) { + region_pred.push(outlive); + } + } + } + } + GenericParamDefKind::Type { bounds, synthetic: false, .. } => { + if let Some(bound_pred) = bound_predicates.get_mut(&Type::Generic(p.name)) { + // We merge bounds in the `where` clause. + for bound in bounds.drain(..) { + if !bound_pred.0.contains(&bound) { + bound_pred.0.push(bound); + } + } + } + } + GenericParamDefKind::Type { .. } | GenericParamDefKind::Const { .. } => { + // nothing to do here. + } + } params.push(p); } params.extend(impl_trait_params); - let mut generics = Generics { + Generics { params, - where_predicates: gens - .predicates - .iter() - .filter_map(|x| clean_where_predicate(x, cx)) + where_predicates: bound_predicates + .into_iter() + .map(|(ty, (bounds, bound_params))| WherePredicate::BoundPredicate { + ty, + bounds, + bound_params, + }) + .chain( + region_predicates + .into_iter() + .map(|(lifetime, bounds)| WherePredicate::RegionPredicate { lifetime, bounds }), + ) + .chain(eq_predicates.into_iter()) .collect(), - }; - - // Some duplicates are generated for ?Sized bounds between type params and where - // predicates. The point in here is to move the bounds definitions from type params - // to where predicates when such cases occur. - for where_pred in &mut generics.where_predicates { - match *where_pred { - WherePredicate::BoundPredicate { ty: Generic(ref name), ref mut bounds, .. } => { - if bounds.is_empty() { - for param in &mut generics.params { - match param.kind { - GenericParamDefKind::Lifetime { .. } => {} - GenericParamDefKind::Type { bounds: ref mut ty_bounds, .. } => { - if ¶m.name == name { - mem::swap(bounds, ty_bounds); - break; - } - } - GenericParamDefKind::Const { .. } => {} - } - } - } - } - _ => continue, - } } - generics } fn clean_ty_generics<'tcx>( @@ -2233,6 +2291,26 @@ fn clean_extern_crate<'tcx>( fn clean_use_statement<'tcx>( import: &hir::Item<'tcx>, name: Symbol, + path: &hir::UsePath<'tcx>, + kind: hir::UseKind, + cx: &mut DocContext<'tcx>, + inlined_names: &mut FxHashSet<(ItemType, Symbol)>, +) -> Vec<Item> { + let mut items = Vec::new(); + let hir::UsePath { segments, ref res, span } = *path; + for &res in res { + if let Res::Def(DefKind::Ctor(..), _) | Res::SelfCtor(..) = res { + continue; + } + let path = hir::Path { segments, res, span }; + items.append(&mut clean_use_statement_inner(import, name, &path, kind, cx, inlined_names)); + } + items +} + +fn clean_use_statement_inner<'tcx>( + import: &hir::Item<'tcx>, + name: Symbol, path: &hir::Path<'tcx>, kind: hir::UseKind, cx: &mut DocContext<'tcx>, diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index ed4e9508f43..2590bb0df3f 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -242,7 +242,9 @@ impl ExternalCrate { hir::ItemKind::Use(path, hir::UseKind::Single) if tcx.visibility(id.owner_id).is_public() => { - as_keyword(path.res.expect_non_local()) + path.res + .iter() + .find_map(|res| as_keyword(res.expect_non_local())) .map(|(_, prim)| (id.owner_id.to_def_id(), prim)) } _ => None, @@ -310,10 +312,11 @@ impl ExternalCrate { hir::ItemKind::Use(path, hir::UseKind::Single) if tcx.visibility(id.owner_id).is_public() => { - as_primitive(path.res.expect_non_local()).map(|(_, prim)| { + path.res + .iter() + .find_map(|res| as_primitive(res.expect_non_local())) // Pretend the primitive is local. - (id.owner_id.to_def_id(), prim) - }) + .map(|(_, prim)| (id.owner_id.to_def_id(), prim)) } _ => None, } diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs index 893249e88cf..da0df596c41 100644 --- a/src/librustdoc/core.rs +++ b/src/librustdoc/core.rs @@ -489,7 +489,7 @@ impl<'tcx> Visitor<'tcx> for EmitIgnoredResolutionErrors<'tcx> { self.tcx.hir() } - fn visit_path(&mut self, path: &'tcx Path<'_>, _id: HirId) { + fn visit_path(&mut self, path: &Path<'tcx>, _id: HirId) { debug!("visiting path {:?}", path); if path.res == Res::Err { // We have less context here than in rustc_resolve, diff --git a/src/librustdoc/html/render/span_map.rs b/src/librustdoc/html/render/span_map.rs index 151ec2b28ad..4514894cabe 100644 --- a/src/librustdoc/html/render/span_map.rs +++ b/src/librustdoc/html/render/span_map.rs @@ -140,7 +140,7 @@ impl<'tcx> Visitor<'tcx> for SpanMapVisitor<'tcx> { self.tcx.hir() } - fn visit_path(&mut self, path: &'tcx rustc_hir::Path<'tcx>, _id: HirId) { + fn visit_path(&mut self, path: &rustc_hir::Path<'tcx>, _id: HirId) { if self.handle_macro(path.span) { return; } @@ -190,12 +190,4 @@ impl<'tcx> Visitor<'tcx> for SpanMapVisitor<'tcx> { } intravisit::walk_expr(self, expr); } - - fn visit_use(&mut self, path: &'tcx rustc_hir::Path<'tcx>, id: HirId) { - if self.handle_macro(path.span) { - return; - } - self.handle_path(path); - intravisit::walk_use(self, path, id); - } } diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css index 02a51312e8f..f44797fe55f 100644 --- a/src/librustdoc/html/static/css/rustdoc.css +++ b/src/librustdoc/html/static/css/rustdoc.css @@ -197,9 +197,7 @@ a.srclink, #help-button > a, details.rustdoc-toggle.top-doc > summary, details.rustdoc-toggle.non-exhaustive > summary, -.scraped-example-title, -.more-examples-toggle summary, .more-examples-toggle .hide-more, -.example-links a, +.scraped-example-list, /* This selector is for the items listed in the "all items" page. */ ul.all-items { font-family: "Fira Sans", Arial, NanumBarunGothic, sans-serif; @@ -894,7 +892,6 @@ so that we can apply CSS-filters to change the arrow color in themes */ white-space: nowrap; text-overflow: ellipsis; overflow: hidden; - display: block; } .search-results a:hover, @@ -911,6 +908,7 @@ so that we can apply CSS-filters to change the arrow color in themes */ .popover { position: absolute; + top: 100%; right: 0; z-index: 2; display: block; @@ -1360,22 +1358,24 @@ a.test-arrow:hover { } #settings-menu, #help-button { margin-left: 4px; - outline: none; + display: flex; } #settings-menu > a, #help-button > a, #copy-path { width: 33px; - line-height: 1.5; } #settings-menu > a, #help-button > a { - padding: 5px; - height: 100%; - display: block; + display: flex; + align-items: center; + justify-content: center; background-color: var(--button-background-color); border: 1px solid var(--border-color); border-radius: 2px; color: var(--settings-button-color); + /* Rare exception to specifying font sizes in rem. Since this is acting + as an icon, it's okay to specify their sizes in pixels. */ + font-size: 20px; } #settings-menu > a:hover, #settings-menu > a:focus, @@ -1411,14 +1411,6 @@ a.test-arrow:hover { animation: rotating 2s linear infinite; } -#help-button > a { - text-align: center; - /* Rare exception to specifying font sizes in rem. Since this is acting - as an icon, it's okay to specify their sizes in pixels. */ - font-size: 20px; - padding-top: 2px; -} - kbd { display: inline-block; padding: 3px 5px; @@ -1517,6 +1509,7 @@ details.rustdoc-toggle > summary::before { display: inline-block; vertical-align: middle; opacity: .5; + filter: var(--toggle-filter); } details.rustdoc-toggle > summary.hideme > span, @@ -1592,17 +1585,11 @@ details.rustdoc-toggle[open] > summary.hideme > span { display: none; } -details.rustdoc-toggle[open] > summary::before, -details.rustdoc-toggle[open] > summary.hideme::before { +details.rustdoc-toggle[open] > summary::before { background: url("toggle-minus-31bbd6e4c77f5c96.svg") no-repeat top left; - width: 16px; - height: 16px; - display: inline-block; - content: ""; } -details.rustdoc-toggle[open] > summary::after, -details.rustdoc-toggle[open] > summary.hideme::after { +details.rustdoc-toggle[open] > summary::after { content: "Collapse"; } @@ -1660,10 +1647,6 @@ in storage.js content: "Since "; } - #copy-path { - display: none; - } - /* Hide the logo and item name from the sidebar. Those are displayed in the mobile-topbar instead. */ .sidebar .sidebar-logo, @@ -1797,8 +1780,8 @@ in storage.js border-bottom: 1px solid; } - /* We don't display the help button on mobile devices. */ - #help-button { + /* We don't display these buttons on mobile devices. */ + #copy-path, #help-button { display: none; } diff --git a/src/librustdoc/html/static/css/themes/ayu.css b/src/librustdoc/html/static/css/themes/ayu.css index de7db7d438c..6e0905e730d 100644 --- a/src/librustdoc/html/static/css/themes/ayu.css +++ b/src/librustdoc/html/static/css/themes/ayu.css @@ -21,6 +21,7 @@ Original by Dempfi (https://github.com/dempfi/ayu) --right-side-color: grey; --code-attribute-color: #999; --toggles-color: #999; + --toggle-filter: invert(100%); --search-input-focused-border-color: #5c6773; /* Same as `--border-color`. */ --copy-path-button-color: #fff; --copy-path-img-filter: invert(70%); @@ -158,10 +159,6 @@ body.source .example-wrap pre.rust a { background: #333; } -details.rustdoc-toggle > summary::before { - filter: invert(100%); -} - .module-item .stab, .import-item .stab { color: #000; diff --git a/src/librustdoc/html/static/css/themes/dark.css b/src/librustdoc/html/static/css/themes/dark.css index d8929f32338..334fc3de561 100644 --- a/src/librustdoc/html/static/css/themes/dark.css +++ b/src/librustdoc/html/static/css/themes/dark.css @@ -16,6 +16,7 @@ --right-side-color: grey; --code-attribute-color: #999; --toggles-color: #999; + --toggle-filter: invert(100%); --search-input-focused-border-color: #008dfd; --copy-path-button-color: #999; --copy-path-img-filter: invert(50%); @@ -89,10 +90,6 @@ body.source .example-wrap pre.rust a { background: #333; } -details.rustdoc-toggle > summary::before { - filter: invert(100%); -} - #titles > button:not(.selected) { background-color: #252525; border-top-color: #252525; diff --git a/src/librustdoc/html/static/css/themes/light.css b/src/librustdoc/html/static/css/themes/light.css index 78a0cdcc3bc..453e7508af4 100644 --- a/src/librustdoc/html/static/css/themes/light.css +++ b/src/librustdoc/html/static/css/themes/light.css @@ -16,6 +16,7 @@ --right-side-color: grey; --code-attribute-color: #999; --toggles-color: #999; + --toggle-filter: none; --search-input-focused-border-color: #66afe9; --copy-path-button-color: #999; --copy-path-img-filter: invert(50%); diff --git a/src/librustdoc/json/mod.rs b/src/librustdoc/json/mod.rs index e4df1332521..1196f944faa 100644 --- a/src/librustdoc/json/mod.rs +++ b/src/librustdoc/json/mod.rs @@ -99,53 +99,6 @@ impl<'tcx> JsonRenderer<'tcx> { }) .unwrap_or_default() } - - fn get_trait_items(&mut self) -> Vec<(types::Id, types::Item)> { - debug!("Adding foreign trait items"); - Rc::clone(&self.cache) - .traits - .iter() - .filter_map(|(&id, trait_item)| { - // only need to synthesize items for external traits - if !id.is_local() { - for item in &trait_item.items { - trace!("Adding subitem to {id:?}: {:?}", item.item_id); - self.item(item.clone()).unwrap(); - } - let item_id = from_item_id(id.into(), self.tcx); - Some(( - item_id.clone(), - types::Item { - id: item_id, - crate_id: id.krate.as_u32(), - name: self - .cache - .paths - .get(&id) - .unwrap_or_else(|| { - self.cache - .external_paths - .get(&id) - .expect("Trait should either be in local or external paths") - }) - .0 - .last() - .map(|s| s.to_string()), - visibility: types::Visibility::Public, - inner: types::ItemEnum::Trait(trait_item.clone().into_tcx(self.tcx)), - span: None, - docs: Default::default(), - links: Default::default(), - attrs: Default::default(), - deprecation: Default::default(), - }, - )) - } else { - None - } - }) - .collect() - } } impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> { @@ -225,10 +178,10 @@ impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> { types::ItemEnum::Function(_) | types::ItemEnum::Module(_) + | types::ItemEnum::Import(_) | types::ItemEnum::AssocConst { .. } | types::ItemEnum::AssocType { .. } => true, types::ItemEnum::ExternCrate { .. } - | types::ItemEnum::Import(_) | types::ItemEnum::StructField(_) | types::ItemEnum::Variant(_) | types::ItemEnum::TraitAlias(_) @@ -276,11 +229,7 @@ impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> { let e = ExternalCrate { crate_num: LOCAL_CRATE }; - // FIXME(adotinthevoid): Remove this, as it's not consistent with not - // inlining foreign items. - let foreign_trait_items = self.get_trait_items(); - let mut index = (*self.index).clone().into_inner(); - index.extend(foreign_trait_items); + let index = (*self.index).clone().into_inner(); debug!("Constructing Output"); // This needs to be the default HashMap for compatibility with the public interface for diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs index 1a84ec65047..6d34f484754 100644 --- a/src/librustdoc/lib.rs +++ b/src/librustdoc/lib.rs @@ -781,10 +781,7 @@ fn main_args(at_args: &[String]) -> MainResult { let sess = compiler.session(); if sess.opts.describe_lints { - let mut lint_store = rustc_lint::new_lint_store( - sess.opts.unstable_opts.no_interleave_lints, - sess.enable_internal_lints(), - ); + let mut lint_store = rustc_lint::new_lint_store(sess.enable_internal_lints()); let registered_lints = if let Some(register_lints) = compiler.register_lints() { register_lints(sess, &mut lint_store); true diff --git a/src/librustdoc/passes/bare_urls.rs b/src/librustdoc/passes/bare_urls.rs deleted file mode 100644 index 7ff3ccef945..00000000000 --- a/src/librustdoc/passes/bare_urls.rs +++ /dev/null @@ -1,110 +0,0 @@ -//! Detects links that are not linkified, e.g., in Markdown such as `Go to https://example.com/.` -//! Suggests wrapping the link with angle brackets: `Go to <https://example.com/>.` to linkify it. -use super::Pass; -use crate::clean::*; -use crate::core::DocContext; -use crate::html::markdown::main_body_opts; -use crate::visit::DocVisitor; -use core::ops::Range; -use pulldown_cmark::{Event, Parser, Tag}; -use regex::Regex; -use rustc_errors::Applicability; -use std::mem; -use std::sync::LazyLock; - -pub(crate) const CHECK_BARE_URLS: Pass = Pass { - name: "check-bare-urls", - run: check_bare_urls, - description: "detects URLs that are not hyperlinks", -}; - -static URL_REGEX: LazyLock<Regex> = LazyLock::new(|| { - Regex::new(concat!( - r"https?://", // url scheme - r"([-a-zA-Z0-9@:%._\+~#=]{2,256}\.)+", // one or more subdomains - r"[a-zA-Z]{2,63}", // root domain - r"\b([-a-zA-Z0-9@:%_\+.~#?&/=]*)" // optional query or url fragments - )) - .expect("failed to build regex") -}); - -struct BareUrlsLinter<'a, 'tcx> { - cx: &'a mut DocContext<'tcx>, -} - -impl<'a, 'tcx> BareUrlsLinter<'a, 'tcx> { - fn find_raw_urls( - &self, - text: &str, - range: Range<usize>, - f: &impl Fn(&DocContext<'_>, &str, &str, Range<usize>), - ) { - trace!("looking for raw urls in {}", text); - // For now, we only check "full" URLs (meaning, starting with "http://" or "https://"). - for match_ in URL_REGEX.find_iter(text) { - let url = match_.as_str(); - let url_range = match_.range(); - f( - self.cx, - "this URL is not a hyperlink", - url, - Range { start: range.start + url_range.start, end: range.start + url_range.end }, - ); - } - } -} - -pub(crate) fn check_bare_urls(krate: Crate, cx: &mut DocContext<'_>) -> Crate { - BareUrlsLinter { cx }.visit_crate(&krate); - krate -} - -impl<'a, 'tcx> DocVisitor for BareUrlsLinter<'a, 'tcx> { - fn visit_item(&mut self, item: &Item) { - let Some(hir_id) = DocContext::as_local_hir_id(self.cx.tcx, item.item_id) - else { - // If non-local, no need to check anything. - return; - }; - let dox = item.attrs.collapsed_doc_value().unwrap_or_default(); - if !dox.is_empty() { - let report_diag = |cx: &DocContext<'_>, msg: &str, url: &str, range: Range<usize>| { - let sp = super::source_span_for_markdown_range(cx.tcx, &dox, &range, &item.attrs) - .unwrap_or_else(|| item.attr_span(cx.tcx)); - cx.tcx.struct_span_lint_hir(crate::lint::BARE_URLS, hir_id, sp, msg, |lint| { - lint.note("bare URLs are not automatically turned into clickable links") - .span_suggestion( - sp, - "use an automatic link instead", - format!("<{}>", url), - Applicability::MachineApplicable, - ) - }); - }; - - let mut p = Parser::new_ext(&dox, main_body_opts()).into_offset_iter(); - - while let Some((event, range)) = p.next() { - match event { - Event::Text(s) => self.find_raw_urls(&s, range, &report_diag), - // We don't want to check the text inside code blocks or links. - Event::Start(tag @ (Tag::CodeBlock(_) | Tag::Link(..))) => { - while let Some((event, _)) = p.next() { - match event { - Event::End(end) - if mem::discriminant(&end) == mem::discriminant(&tag) => - { - break; - } - _ => {} - } - } - } - _ => {} - } - } - } - - self.visit_item_recur(item) - } -} diff --git a/src/librustdoc/passes/check_code_block_syntax.rs b/src/librustdoc/passes/check_code_block_syntax.rs deleted file mode 100644 index 2e651b53874..00000000000 --- a/src/librustdoc/passes/check_code_block_syntax.rs +++ /dev/null @@ -1,209 +0,0 @@ -//! Validates syntax inside Rust code blocks (\`\`\`rust). -use rustc_data_structures::sync::{Lock, Lrc}; -use rustc_errors::{ - emitter::Emitter, - translation::{to_fluent_args, Translate}, - Applicability, Diagnostic, Handler, LazyFallbackBundle, -}; -use rustc_parse::parse_stream_from_source_str; -use rustc_session::parse::ParseSess; -use rustc_span::hygiene::{AstPass, ExpnData, ExpnKind, LocalExpnId}; -use rustc_span::source_map::{FilePathMapping, SourceMap}; -use rustc_span::{FileName, InnerSpan, DUMMY_SP}; - -use crate::clean; -use crate::core::DocContext; -use crate::html::markdown::{self, RustCodeBlock}; -use crate::passes::Pass; -use crate::visit::DocVisitor; - -pub(crate) const CHECK_CODE_BLOCK_SYNTAX: Pass = Pass { - name: "check-code-block-syntax", - run: check_code_block_syntax, - description: "validates syntax inside Rust code blocks", -}; - -pub(crate) fn check_code_block_syntax( - krate: clean::Crate, - cx: &mut DocContext<'_>, -) -> clean::Crate { - SyntaxChecker { cx }.visit_crate(&krate); - krate -} - -struct SyntaxChecker<'a, 'tcx> { - cx: &'a DocContext<'tcx>, -} - -impl<'a, 'tcx> SyntaxChecker<'a, 'tcx> { - fn check_rust_syntax(&self, item: &clean::Item, dox: &str, code_block: RustCodeBlock) { - let buffer = Lrc::new(Lock::new(Buffer::default())); - let fallback_bundle = - rustc_errors::fallback_fluent_bundle(rustc_errors::DEFAULT_LOCALE_RESOURCES, false); - let emitter = BufferEmitter { buffer: Lrc::clone(&buffer), fallback_bundle }; - - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let handler = Handler::with_emitter(false, None, Box::new(emitter)); - let source = dox[code_block.code].to_owned(); - let sess = ParseSess::with_span_handler(handler, sm); - - let edition = code_block.lang_string.edition.unwrap_or_else(|| self.cx.tcx.sess.edition()); - let expn_data = ExpnData::default( - ExpnKind::AstPass(AstPass::TestHarness), - DUMMY_SP, - edition, - None, - None, - ); - let expn_id = - self.cx.tcx.with_stable_hashing_context(|hcx| LocalExpnId::fresh(expn_data, hcx)); - let span = DUMMY_SP.fresh_expansion(expn_id); - - let is_empty = rustc_driver::catch_fatal_errors(|| { - parse_stream_from_source_str( - FileName::Custom(String::from("doctest")), - source, - &sess, - Some(span), - ) - .is_empty() - }) - .unwrap_or(false); - let buffer = buffer.borrow(); - - if !buffer.has_errors && !is_empty { - // No errors in a non-empty program. - return; - } - - let Some(local_id) = item.item_id.as_def_id().and_then(|x| x.as_local()) - else { - // We don't need to check the syntax for other crates so returning - // without doing anything should not be a problem. - return; - }; - - let hir_id = self.cx.tcx.hir().local_def_id_to_hir_id(local_id); - let empty_block = code_block.lang_string == Default::default() && code_block.is_fenced; - let is_ignore = code_block.lang_string.ignore != markdown::Ignore::None; - - // The span and whether it is precise or not. - let (sp, precise_span) = match super::source_span_for_markdown_range( - self.cx.tcx, - dox, - &code_block.range, - &item.attrs, - ) { - Some(sp) => (sp, true), - None => (item.attr_span(self.cx.tcx), false), - }; - - let msg = if buffer.has_errors { - "could not parse code block as Rust code" - } else { - "Rust code block is empty" - }; - - // Finally build and emit the completed diagnostic. - // All points of divergence have been handled earlier so this can be - // done the same way whether the span is precise or not. - self.cx.tcx.struct_span_lint_hir( - crate::lint::INVALID_RUST_CODEBLOCKS, - hir_id, - sp, - msg, - |lint| { - let explanation = if is_ignore { - "`ignore` code blocks require valid Rust code for syntax highlighting; \ - mark blocks that do not contain Rust code as text" - } else { - "mark blocks that do not contain Rust code as text" - }; - - if precise_span { - if is_ignore { - // giving an accurate suggestion is hard because `ignore` might not have come first in the list. - // just give a `help` instead. - lint.span_help( - sp.from_inner(InnerSpan::new(0, 3)), - &format!("{}: ```text", explanation), - ); - } else if empty_block { - lint.span_suggestion( - sp.from_inner(InnerSpan::new(0, 3)).shrink_to_hi(), - explanation, - "text", - Applicability::MachineApplicable, - ); - } - } else if empty_block || is_ignore { - lint.help(&format!("{}: ```text", explanation)); - } - - // FIXME(#67563): Provide more context for these errors by displaying the spans inline. - for message in buffer.messages.iter() { - lint.note(message); - } - - lint - }, - ); - } -} - -impl<'a, 'tcx> DocVisitor for SyntaxChecker<'a, 'tcx> { - fn visit_item(&mut self, item: &clean::Item) { - if let Some(dox) = &item.attrs.collapsed_doc_value() { - let sp = item.attr_span(self.cx.tcx); - let extra = crate::html::markdown::ExtraInfo::new_did( - self.cx.tcx, - item.item_id.expect_def_id(), - sp, - ); - for code_block in markdown::rust_code_blocks(dox, &extra) { - self.check_rust_syntax(item, dox, code_block); - } - } - - self.visit_item_recur(item) - } -} - -#[derive(Default)] -struct Buffer { - messages: Vec<String>, - has_errors: bool, -} - -struct BufferEmitter { - buffer: Lrc<Lock<Buffer>>, - fallback_bundle: LazyFallbackBundle, -} - -impl Translate for BufferEmitter { - fn fluent_bundle(&self) -> Option<&Lrc<rustc_errors::FluentBundle>> { - None - } - - fn fallback_fluent_bundle(&self) -> &rustc_errors::FluentBundle { - &**self.fallback_bundle - } -} - -impl Emitter for BufferEmitter { - fn emit_diagnostic(&mut self, diag: &Diagnostic) { - let mut buffer = self.buffer.borrow_mut(); - - let fluent_args = to_fluent_args(diag.args()); - let translated_main_message = self.translate_message(&diag.message[0].0, &fluent_args); - - buffer.messages.push(format!("error from rustc: {}", translated_main_message)); - if diag.is_error() { - buffer.has_errors = true; - } - } - - fn source_map(&self) -> Option<&Lrc<SourceMap>> { - None - } -} diff --git a/src/librustdoc/passes/lint.rs b/src/librustdoc/passes/lint.rs new file mode 100644 index 00000000000..97031c4f028 --- /dev/null +++ b/src/librustdoc/passes/lint.rs @@ -0,0 +1,33 @@ +//! Runs several rustdoc lints, consolidating them into a single pass for +//! efficiency and simplicity. + +mod bare_urls; +mod check_code_block_syntax; +mod html_tags; + +use super::Pass; +use crate::clean::*; +use crate::core::DocContext; +use crate::visit::DocVisitor; + +pub(crate) const RUN_LINTS: Pass = + Pass { name: "run-lints", run: run_lints, description: "runs some of rustdoc's lints" }; + +struct Linter<'a, 'tcx> { + cx: &'a mut DocContext<'tcx>, +} + +pub(crate) fn run_lints(krate: Crate, cx: &mut DocContext<'_>) -> Crate { + Linter { cx }.visit_crate(&krate); + krate +} + +impl<'a, 'tcx> DocVisitor for Linter<'a, 'tcx> { + fn visit_item(&mut self, item: &Item) { + bare_urls::visit_item(self.cx, item); + check_code_block_syntax::visit_item(self.cx, item); + html_tags::visit_item(self.cx, item); + + self.visit_item_recur(item) + } +} diff --git a/src/librustdoc/passes/lint/bare_urls.rs b/src/librustdoc/passes/lint/bare_urls.rs new file mode 100644 index 00000000000..423230cfe38 --- /dev/null +++ b/src/librustdoc/passes/lint/bare_urls.rs @@ -0,0 +1,89 @@ +//! Detects links that are not linkified, e.g., in Markdown such as `Go to https://example.com/.` +//! Suggests wrapping the link with angle brackets: `Go to <https://example.com/>.` to linkify it. + +use crate::clean::*; +use crate::core::DocContext; +use crate::html::markdown::main_body_opts; +use crate::passes::source_span_for_markdown_range; +use core::ops::Range; +use pulldown_cmark::{Event, Parser, Tag}; +use regex::Regex; +use rustc_errors::Applicability; +use std::mem; +use std::sync::LazyLock; + +pub(super) fn visit_item(cx: &DocContext<'_>, item: &Item) { + let Some(hir_id) = DocContext::as_local_hir_id(cx.tcx, item.item_id) + else { + // If non-local, no need to check anything. + return; + }; + let dox = item.attrs.collapsed_doc_value().unwrap_or_default(); + if !dox.is_empty() { + let report_diag = |cx: &DocContext<'_>, msg: &str, url: &str, range: Range<usize>| { + let sp = source_span_for_markdown_range(cx.tcx, &dox, &range, &item.attrs) + .unwrap_or_else(|| item.attr_span(cx.tcx)); + cx.tcx.struct_span_lint_hir(crate::lint::BARE_URLS, hir_id, sp, msg, |lint| { + lint.note("bare URLs are not automatically turned into clickable links") + .span_suggestion( + sp, + "use an automatic link instead", + format!("<{}>", url), + Applicability::MachineApplicable, + ) + }); + }; + + let mut p = Parser::new_ext(&dox, main_body_opts()).into_offset_iter(); + + while let Some((event, range)) = p.next() { + match event { + Event::Text(s) => find_raw_urls(cx, &s, range, &report_diag), + // We don't want to check the text inside code blocks or links. + Event::Start(tag @ (Tag::CodeBlock(_) | Tag::Link(..))) => { + while let Some((event, _)) = p.next() { + match event { + Event::End(end) + if mem::discriminant(&end) == mem::discriminant(&tag) => + { + break; + } + _ => {} + } + } + } + _ => {} + } + } + } +} + +static URL_REGEX: LazyLock<Regex> = LazyLock::new(|| { + Regex::new(concat!( + r"https?://", // url scheme + r"([-a-zA-Z0-9@:%._\+~#=]{2,256}\.)+", // one or more subdomains + r"[a-zA-Z]{2,63}", // root domain + r"\b([-a-zA-Z0-9@:%_\+.~#?&/=]*)" // optional query or url fragments + )) + .expect("failed to build regex") +}); + +fn find_raw_urls( + cx: &DocContext<'_>, + text: &str, + range: Range<usize>, + f: &impl Fn(&DocContext<'_>, &str, &str, Range<usize>), +) { + trace!("looking for raw urls in {}", text); + // For now, we only check "full" URLs (meaning, starting with "http://" or "https://"). + for match_ in URL_REGEX.find_iter(text) { + let url = match_.as_str(); + let url_range = match_.range(); + f( + cx, + "this URL is not a hyperlink", + url, + Range { start: range.start + url_range.start, end: range.start + url_range.end }, + ); + } +} diff --git a/src/librustdoc/passes/lint/check_code_block_syntax.rs b/src/librustdoc/passes/lint/check_code_block_syntax.rs new file mode 100644 index 00000000000..5aa4f238b2d --- /dev/null +++ b/src/librustdoc/passes/lint/check_code_block_syntax.rs @@ -0,0 +1,170 @@ +//! Validates syntax inside Rust code blocks (\`\`\`rust). +use rustc_data_structures::sync::{Lock, Lrc}; +use rustc_errors::{ + emitter::Emitter, + translation::{to_fluent_args, Translate}, + Applicability, Diagnostic, Handler, LazyFallbackBundle, +}; +use rustc_parse::parse_stream_from_source_str; +use rustc_session::parse::ParseSess; +use rustc_span::hygiene::{AstPass, ExpnData, ExpnKind, LocalExpnId}; +use rustc_span::source_map::{FilePathMapping, SourceMap}; +use rustc_span::{FileName, InnerSpan, DUMMY_SP}; + +use crate::clean; +use crate::core::DocContext; +use crate::html::markdown::{self, RustCodeBlock}; +use crate::passes::source_span_for_markdown_range; + +pub(crate) fn visit_item(cx: &DocContext<'_>, item: &clean::Item) { + if let Some(dox) = &item.attrs.collapsed_doc_value() { + let sp = item.attr_span(cx.tcx); + let extra = + crate::html::markdown::ExtraInfo::new_did(cx.tcx, item.item_id.expect_def_id(), sp); + for code_block in markdown::rust_code_blocks(dox, &extra) { + check_rust_syntax(cx, item, dox, code_block); + } + } +} + +fn check_rust_syntax( + cx: &DocContext<'_>, + item: &clean::Item, + dox: &str, + code_block: RustCodeBlock, +) { + let buffer = Lrc::new(Lock::new(Buffer::default())); + let fallback_bundle = + rustc_errors::fallback_fluent_bundle(rustc_errors::DEFAULT_LOCALE_RESOURCES, false); + let emitter = BufferEmitter { buffer: Lrc::clone(&buffer), fallback_bundle }; + + let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); + let handler = Handler::with_emitter(false, None, Box::new(emitter)); + let source = dox[code_block.code].to_owned(); + let sess = ParseSess::with_span_handler(handler, sm); + + let edition = code_block.lang_string.edition.unwrap_or_else(|| cx.tcx.sess.edition()); + let expn_data = + ExpnData::default(ExpnKind::AstPass(AstPass::TestHarness), DUMMY_SP, edition, None, None); + let expn_id = cx.tcx.with_stable_hashing_context(|hcx| LocalExpnId::fresh(expn_data, hcx)); + let span = DUMMY_SP.fresh_expansion(expn_id); + + let is_empty = rustc_driver::catch_fatal_errors(|| { + parse_stream_from_source_str( + FileName::Custom(String::from("doctest")), + source, + &sess, + Some(span), + ) + .is_empty() + }) + .unwrap_or(false); + let buffer = buffer.borrow(); + + if !buffer.has_errors && !is_empty { + // No errors in a non-empty program. + return; + } + + let Some(local_id) = item.item_id.as_def_id().and_then(|x| x.as_local()) + else { + // We don't need to check the syntax for other crates so returning + // without doing anything should not be a problem. + return; + }; + + let hir_id = cx.tcx.hir().local_def_id_to_hir_id(local_id); + let empty_block = code_block.lang_string == Default::default() && code_block.is_fenced; + let is_ignore = code_block.lang_string.ignore != markdown::Ignore::None; + + // The span and whether it is precise or not. + let (sp, precise_span) = + match source_span_for_markdown_range(cx.tcx, dox, &code_block.range, &item.attrs) { + Some(sp) => (sp, true), + None => (item.attr_span(cx.tcx), false), + }; + + let msg = if buffer.has_errors { + "could not parse code block as Rust code" + } else { + "Rust code block is empty" + }; + + // Finally build and emit the completed diagnostic. + // All points of divergence have been handled earlier so this can be + // done the same way whether the span is precise or not. + cx.tcx.struct_span_lint_hir(crate::lint::INVALID_RUST_CODEBLOCKS, hir_id, sp, msg, |lint| { + let explanation = if is_ignore { + "`ignore` code blocks require valid Rust code for syntax highlighting; \ + mark blocks that do not contain Rust code as text" + } else { + "mark blocks that do not contain Rust code as text" + }; + + if precise_span { + if is_ignore { + // giving an accurate suggestion is hard because `ignore` might not have come first in the list. + // just give a `help` instead. + lint.span_help( + sp.from_inner(InnerSpan::new(0, 3)), + &format!("{}: ```text", explanation), + ); + } else if empty_block { + lint.span_suggestion( + sp.from_inner(InnerSpan::new(0, 3)).shrink_to_hi(), + explanation, + "text", + Applicability::MachineApplicable, + ); + } + } else if empty_block || is_ignore { + lint.help(&format!("{}: ```text", explanation)); + } + + // FIXME(#67563): Provide more context for these errors by displaying the spans inline. + for message in buffer.messages.iter() { + lint.note(message); + } + + lint + }); +} + +#[derive(Default)] +struct Buffer { + messages: Vec<String>, + has_errors: bool, +} + +struct BufferEmitter { + buffer: Lrc<Lock<Buffer>>, + fallback_bundle: LazyFallbackBundle, +} + +impl Translate for BufferEmitter { + fn fluent_bundle(&self) -> Option<&Lrc<rustc_errors::FluentBundle>> { + None + } + + fn fallback_fluent_bundle(&self) -> &rustc_errors::FluentBundle { + &**self.fallback_bundle + } +} + +impl Emitter for BufferEmitter { + fn emit_diagnostic(&mut self, diag: &Diagnostic) { + let mut buffer = self.buffer.borrow_mut(); + + let fluent_args = to_fluent_args(diag.args()); + let translated_main_message = self.translate_message(&diag.message[0].0, &fluent_args); + + buffer.messages.push(format!("error from rustc: {}", translated_main_message)); + if diag.is_error() { + buffer.has_errors = true; + } + } + + fn source_map(&self) -> Option<&Lrc<SourceMap>> { + None + } +} diff --git a/src/librustdoc/passes/html_tags.rs b/src/librustdoc/passes/lint/html_tags.rs index a89ed7c7ed4..070c0aab586 100644 --- a/src/librustdoc/passes/html_tags.rs +++ b/src/librustdoc/passes/lint/html_tags.rs @@ -1,9 +1,8 @@ //! Detects invalid HTML (like an unclosed `<span>`) in doc comments. -use super::Pass; use crate::clean::*; use crate::core::DocContext; use crate::html::markdown::main_body_opts; -use crate::visit::DocVisitor; +use crate::passes::source_span_for_markdown_range; use pulldown_cmark::{BrokenLink, Event, LinkType, Parser, Tag}; @@ -11,20 +10,150 @@ use std::iter::Peekable; use std::ops::Range; use std::str::CharIndices; -pub(crate) const CHECK_INVALID_HTML_TAGS: Pass = Pass { - name: "check-invalid-html-tags", - run: check_invalid_html_tags, - description: "detects invalid HTML tags in doc comments", -}; +pub(crate) fn visit_item(cx: &DocContext<'_>, item: &Item) { + let tcx = cx.tcx; + let Some(hir_id) = DocContext::as_local_hir_id(tcx, item.item_id) + // If non-local, no need to check anything. + else { return }; + let dox = item.attrs.collapsed_doc_value().unwrap_or_default(); + if !dox.is_empty() { + let report_diag = |msg: &str, range: &Range<usize>, is_open_tag: bool| { + let sp = match source_span_for_markdown_range(tcx, &dox, range, &item.attrs) { + Some(sp) => sp, + None => item.attr_span(tcx), + }; + tcx.struct_span_lint_hir(crate::lint::INVALID_HTML_TAGS, hir_id, sp, msg, |lint| { + use rustc_lint_defs::Applicability; + // If a tag looks like `<this>`, it might actually be a generic. + // We don't try to detect stuff `<like, this>` because that's not valid HTML, + // and we don't try to detect stuff `<like this>` because that's not valid Rust. + let mut generics_end = range.end; + if let Some(Some(mut generics_start)) = (is_open_tag + && dox[..generics_end].ends_with('>')) + .then(|| extract_path_backwards(&dox, range.start)) + { + while generics_start != 0 + && generics_end < dox.len() + && dox.as_bytes()[generics_start - 1] == b'<' + && dox.as_bytes()[generics_end] == b'>' + { + generics_end += 1; + generics_start -= 1; + if let Some(new_start) = extract_path_backwards(&dox, generics_start) { + generics_start = new_start; + } + if let Some(new_end) = extract_path_forward(&dox, generics_end) { + generics_end = new_end; + } + } + if let Some(new_end) = extract_path_forward(&dox, generics_end) { + generics_end = new_end; + } + let generics_sp = match source_span_for_markdown_range( + tcx, + &dox, + &(generics_start..generics_end), + &item.attrs, + ) { + Some(sp) => sp, + None => item.attr_span(tcx), + }; + // Sometimes, we only extract part of a path. For example, consider this: + // + // <[u32] as IntoIter<u32>>::Item + // ^^^^^ unclosed HTML tag `u32` + // + // We don't have any code for parsing fully-qualified trait paths. + // In theory, we could add it, but doing it correctly would require + // parsing the entire path grammar, which is problematic because of + // overlap between the path grammar and Markdown. + // + // The example above shows that ambiguity. Is `[u32]` intended to be an + // intra-doc link to the u32 primitive, or is it intended to be a slice? + // + // If the below conditional were removed, we would suggest this, which is + // not what the user probably wants. + // + // <[u32] as `IntoIter<u32>`>::Item + // + // We know that the user actually wants to wrap the whole thing in a code + // block, but the only reason we know that is because `u32` does not, in + // fact, implement IntoIter. If the example looks like this: + // + // <[Vec<i32>] as IntoIter<i32>::Item + // + // The ideal fix would be significantly different. + if (generics_start > 0 && dox.as_bytes()[generics_start - 1] == b'<') + || (generics_end < dox.len() && dox.as_bytes()[generics_end] == b'>') + { + return lint; + } + // multipart form is chosen here because ``Vec<i32>`` would be confusing. + lint.multipart_suggestion( + "try marking as source code", + vec![ + (generics_sp.shrink_to_lo(), String::from("`")), + (generics_sp.shrink_to_hi(), String::from("`")), + ], + Applicability::MaybeIncorrect, + ); + } -struct InvalidHtmlTagsLinter<'a, 'tcx> { - cx: &'a mut DocContext<'tcx>, -} + lint + }); + }; + + let mut tags = Vec::new(); + let mut is_in_comment = None; + let mut in_code_block = false; + + let link_names = item.link_names(&cx.cache); -pub(crate) fn check_invalid_html_tags(krate: Crate, cx: &mut DocContext<'_>) -> Crate { - let mut coll = InvalidHtmlTagsLinter { cx }; - coll.visit_crate(&krate); - krate + let mut replacer = |broken_link: BrokenLink<'_>| { + if let Some(link) = + link_names.iter().find(|link| *link.original_text == *broken_link.reference) + { + Some((link.href.as_str().into(), link.new_text.as_str().into())) + } else if matches!( + &broken_link.link_type, + LinkType::Reference | LinkType::ReferenceUnknown + ) { + // If the link is shaped [like][this], suppress any broken HTML in the [this] part. + // The `broken_intra_doc_links` will report typos in there anyway. + Some(( + broken_link.reference.to_string().into(), + broken_link.reference.to_string().into(), + )) + } else { + None + } + }; + + let p = Parser::new_with_broken_link_callback(&dox, main_body_opts(), Some(&mut replacer)) + .into_offset_iter(); + + for (event, range) in p { + match event { + Event::Start(Tag::CodeBlock(_)) => in_code_block = true, + Event::Html(text) if !in_code_block => { + extract_tags(&mut tags, &text, range, &mut is_in_comment, &report_diag) + } + Event::End(Tag::CodeBlock(_)) => in_code_block = false, + _ => {} + } + } + + for (tag, range) in tags.iter().filter(|(t, _)| { + let t = t.to_lowercase(); + !ALLOWED_UNCLOSED.contains(&t.as_str()) + }) { + report_diag(&format!("unclosed HTML tag `{}`", tag), range, true); + } + + if let Some(range) = is_in_comment { + report_diag("Unclosed HTML comment", &range, false); + } + } } const ALLOWED_UNCLOSED: &[&str] = &[ @@ -276,155 +405,3 @@ fn extract_tags( } } } - -impl<'a, 'tcx> DocVisitor for InvalidHtmlTagsLinter<'a, 'tcx> { - fn visit_item(&mut self, item: &Item) { - let tcx = self.cx.tcx; - let Some(hir_id) = DocContext::as_local_hir_id(tcx, item.item_id) - // If non-local, no need to check anything. - else { return }; - let dox = item.attrs.collapsed_doc_value().unwrap_or_default(); - if !dox.is_empty() { - let report_diag = |msg: &str, range: &Range<usize>, is_open_tag: bool| { - let sp = match super::source_span_for_markdown_range(tcx, &dox, range, &item.attrs) - { - Some(sp) => sp, - None => item.attr_span(tcx), - }; - tcx.struct_span_lint_hir(crate::lint::INVALID_HTML_TAGS, hir_id, sp, msg, |lint| { - use rustc_lint_defs::Applicability; - // If a tag looks like `<this>`, it might actually be a generic. - // We don't try to detect stuff `<like, this>` because that's not valid HTML, - // and we don't try to detect stuff `<like this>` because that's not valid Rust. - let mut generics_end = range.end; - if let Some(Some(mut generics_start)) = (is_open_tag - && dox[..generics_end].ends_with('>')) - .then(|| extract_path_backwards(&dox, range.start)) - { - while generics_start != 0 - && generics_end < dox.len() - && dox.as_bytes()[generics_start - 1] == b'<' - && dox.as_bytes()[generics_end] == b'>' - { - generics_end += 1; - generics_start -= 1; - if let Some(new_start) = extract_path_backwards(&dox, generics_start) { - generics_start = new_start; - } - if let Some(new_end) = extract_path_forward(&dox, generics_end) { - generics_end = new_end; - } - } - if let Some(new_end) = extract_path_forward(&dox, generics_end) { - generics_end = new_end; - } - let generics_sp = match super::source_span_for_markdown_range( - tcx, - &dox, - &(generics_start..generics_end), - &item.attrs, - ) { - Some(sp) => sp, - None => item.attr_span(tcx), - }; - // Sometimes, we only extract part of a path. For example, consider this: - // - // <[u32] as IntoIter<u32>>::Item - // ^^^^^ unclosed HTML tag `u32` - // - // We don't have any code for parsing fully-qualified trait paths. - // In theory, we could add it, but doing it correctly would require - // parsing the entire path grammar, which is problematic because of - // overlap between the path grammar and Markdown. - // - // The example above shows that ambiguity. Is `[u32]` intended to be an - // intra-doc link to the u32 primitive, or is it intended to be a slice? - // - // If the below conditional were removed, we would suggest this, which is - // not what the user probably wants. - // - // <[u32] as `IntoIter<u32>`>::Item - // - // We know that the user actually wants to wrap the whole thing in a code - // block, but the only reason we know that is because `u32` does not, in - // fact, implement IntoIter. If the example looks like this: - // - // <[Vec<i32>] as IntoIter<i32>::Item - // - // The ideal fix would be significantly different. - if (generics_start > 0 && dox.as_bytes()[generics_start - 1] == b'<') - || (generics_end < dox.len() && dox.as_bytes()[generics_end] == b'>') - { - return lint; - } - // multipart form is chosen here because ``Vec<i32>`` would be confusing. - lint.multipart_suggestion( - "try marking as source code", - vec![ - (generics_sp.shrink_to_lo(), String::from("`")), - (generics_sp.shrink_to_hi(), String::from("`")), - ], - Applicability::MaybeIncorrect, - ); - } - - lint - }); - }; - - let mut tags = Vec::new(); - let mut is_in_comment = None; - let mut in_code_block = false; - - let link_names = item.link_names(&self.cx.cache); - - let mut replacer = |broken_link: BrokenLink<'_>| { - if let Some(link) = - link_names.iter().find(|link| *link.original_text == *broken_link.reference) - { - Some((link.href.as_str().into(), link.new_text.as_str().into())) - } else if matches!( - &broken_link.link_type, - LinkType::Reference | LinkType::ReferenceUnknown - ) { - // If the link is shaped [like][this], suppress any broken HTML in the [this] part. - // The `broken_intra_doc_links` will report typos in there anyway. - Some(( - broken_link.reference.to_string().into(), - broken_link.reference.to_string().into(), - )) - } else { - None - } - }; - - let p = - Parser::new_with_broken_link_callback(&dox, main_body_opts(), Some(&mut replacer)) - .into_offset_iter(); - - for (event, range) in p { - match event { - Event::Start(Tag::CodeBlock(_)) => in_code_block = true, - Event::Html(text) if !in_code_block => { - extract_tags(&mut tags, &text, range, &mut is_in_comment, &report_diag) - } - Event::End(Tag::CodeBlock(_)) => in_code_block = false, - _ => {} - } - } - - for (tag, range) in tags.iter().filter(|(t, _)| { - let t = t.to_lowercase(); - !ALLOWED_UNCLOSED.contains(&t.as_str()) - }) { - report_diag(&format!("unclosed HTML tag `{}`", tag), range, true); - } - - if let Some(range) = is_in_comment { - report_diag("Unclosed HTML comment", &range, false); - } - } - - self.visit_item_recur(item) - } -} diff --git a/src/librustdoc/passes/mod.rs b/src/librustdoc/passes/mod.rs index f81b38ea395..634e70ec97a 100644 --- a/src/librustdoc/passes/mod.rs +++ b/src/librustdoc/passes/mod.rs @@ -12,9 +12,6 @@ use crate::core::DocContext; mod stripper; pub(crate) use stripper::*; -mod bare_urls; -pub(crate) use self::bare_urls::CHECK_BARE_URLS; - mod strip_hidden; pub(crate) use self::strip_hidden::STRIP_HIDDEN; @@ -36,14 +33,11 @@ pub(crate) use self::check_doc_test_visibility::CHECK_DOC_TEST_VISIBILITY; mod collect_trait_impls; pub(crate) use self::collect_trait_impls::COLLECT_TRAIT_IMPLS; -mod check_code_block_syntax; -pub(crate) use self::check_code_block_syntax::CHECK_CODE_BLOCK_SYNTAX; - mod calculate_doc_coverage; pub(crate) use self::calculate_doc_coverage::CALCULATE_DOC_COVERAGE; -mod html_tags; -pub(crate) use self::html_tags::CHECK_INVALID_HTML_TAGS; +mod lint; +pub(crate) use self::lint::RUN_LINTS; /// A single pass over the cleaned documentation. /// @@ -82,11 +76,9 @@ pub(crate) const PASSES: &[Pass] = &[ STRIP_PRIV_IMPORTS, PROPAGATE_DOC_CFG, COLLECT_INTRA_DOC_LINKS, - CHECK_CODE_BLOCK_SYNTAX, COLLECT_TRAIT_IMPLS, CALCULATE_DOC_COVERAGE, - CHECK_INVALID_HTML_TAGS, - CHECK_BARE_URLS, + RUN_LINTS, ]; /// The list of passes run by default. @@ -97,10 +89,8 @@ pub(crate) const DEFAULT_PASSES: &[ConditionalPass] = &[ ConditionalPass::new(STRIP_PRIVATE, WhenNotDocumentPrivate), ConditionalPass::new(STRIP_PRIV_IMPORTS, WhenDocumentPrivate), ConditionalPass::always(COLLECT_INTRA_DOC_LINKS), - ConditionalPass::always(CHECK_CODE_BLOCK_SYNTAX), - ConditionalPass::always(CHECK_INVALID_HTML_TAGS), ConditionalPass::always(PROPAGATE_DOC_CFG), - ConditionalPass::always(CHECK_BARE_URLS), + ConditionalPass::always(RUN_LINTS), ]; /// The list of default passes run when `--doc-coverage` is passed to rustdoc. diff --git a/src/librustdoc/visit_ast.rs b/src/librustdoc/visit_ast.rs index c788b9f4093..22068ebe041 100644 --- a/src/librustdoc/visit_ast.rs +++ b/src/librustdoc/visit_ast.rs @@ -301,39 +301,40 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { hir::ItemKind::GlobalAsm(..) => {} hir::ItemKind::Use(_, hir::UseKind::ListStem) => {} hir::ItemKind::Use(path, kind) => { - let is_glob = kind == hir::UseKind::Glob; - - // Struct and variant constructors and proc macro stubs always show up alongside - // their definitions, we've already processed them so just discard these. - if let Res::Def(DefKind::Ctor(..), _) | Res::SelfCtor(..) = path.res { - return; - } - - let attrs = self.cx.tcx.hir().attrs(item.hir_id()); + for &res in &path.res { + // Struct and variant constructors and proc macro stubs always show up alongside + // their definitions, we've already processed them so just discard these. + if let Res::Def(DefKind::Ctor(..), _) | Res::SelfCtor(..) = res { + continue; + } - // If there was a private module in the current path then don't bother inlining - // anything as it will probably be stripped anyway. - if is_pub && self.inside_public_path { - let please_inline = attrs.iter().any(|item| match item.meta_item_list() { - Some(ref list) if item.has_name(sym::doc) => { - list.iter().any(|i| i.has_name(sym::inline)) + let attrs = self.cx.tcx.hir().attrs(item.hir_id()); + + // If there was a private module in the current path then don't bother inlining + // anything as it will probably be stripped anyway. + if is_pub && self.inside_public_path { + let please_inline = attrs.iter().any(|item| match item.meta_item_list() { + Some(ref list) if item.has_name(sym::doc) => { + list.iter().any(|i| i.has_name(sym::inline)) + } + _ => false, + }); + let is_glob = kind == hir::UseKind::Glob; + let ident = if is_glob { None } else { Some(name) }; + if self.maybe_inline_local( + item.hir_id(), + res, + ident, + is_glob, + om, + please_inline, + ) { + continue; } - _ => false, - }); - let ident = if is_glob { None } else { Some(name) }; - if self.maybe_inline_local( - item.hir_id(), - path.res, - ident, - is_glob, - om, - please_inline, - ) { - return; } - } - om.items.push((item, renamed, parent_id)) + om.items.push((item, renamed, parent_id)) + } } hir::ItemKind::Macro(ref macro_def, _) => { // `#[macro_export] macro_rules!` items are handled separately in `visit()`, diff --git a/src/test/assembly/asm/aarch64-el2vmsa.rs b/src/test/assembly/asm/aarch64-el2vmsa.rs new file mode 100644 index 00000000000..1908ffb8ff3 --- /dev/null +++ b/src/test/assembly/asm/aarch64-el2vmsa.rs @@ -0,0 +1,37 @@ +// assembly-output: emit-asm +// compile-flags: --target aarch64-unknown-linux-gnu +// needs-llvm-components: aarch64 + +#![feature(no_core, lang_items, rustc_attrs)] +#![crate_type = "rlib"] +#![no_core] + +#[rustc_builtin_macro] +macro_rules! asm { + () => {}; +} + +#[lang = "sized"] +trait Sized {} + +// CHECK-LABEL: ttbr0_el2: +#[no_mangle] +pub fn ttbr0_el2() { + // CHECK: //APP + // CHECK-NEXT: msr TTBR0_EL2, x0 + // CHECK-NEXT: //NO_APP + unsafe { + asm!("msr ttbr0_el2, x0"); + } +} + +// CHECK-LABEL: vttbr_el2: +#[no_mangle] +pub fn vttbr_el2() { + // CHECK: //APP + // CHECK-NEXT: msr VTTBR_EL2, x0 + // CHECK-NEXT: //NO_APP + unsafe { + asm!("msr vttbr_el2, x0"); + } +} diff --git a/src/test/assembly/sparc-struct-abi.rs b/src/test/assembly/sparc-struct-abi.rs index 6a898b2974a..6309dd420ff 100644 --- a/src/test/assembly/sparc-struct-abi.rs +++ b/src/test/assembly/sparc-struct-abi.rs @@ -44,12 +44,16 @@ pub unsafe extern "C" fn callee(arg: Franta) { tst_use(arg.b); tst_use(arg.c); tst_use(arg.d); + tail_call_avoidance_fn(); } extern "C" { fn opaque_callee(arg: Franta, intarg: i32); fn tst_use(arg: f32); fn clobber(); + // This exists so that post-https://reviews.llvm.org/D138741 LLVM doesn't + // tail-call away some of our assertions. + fn tail_call_avoidance_fn(); } #[no_mangle] @@ -62,4 +66,5 @@ pub unsafe extern "C" fn caller() { // CHECK: call opaque_callee // CHECK: mov 3, %o2 opaque_callee(Franta { a: 1.0, b: 2.0, c: 3.0, d: 4.0 }, 3); + tail_call_avoidance_fn(); } diff --git a/src/test/codegen/dllimports/main.rs b/src/test/codegen/dllimports/main.rs index bb3134e81c9..ab599992ffd 100644 --- a/src/test/codegen/dllimports/main.rs +++ b/src/test/codegen/dllimports/main.rs @@ -1,17 +1,6 @@ // This test is for *-windows-msvc only. -// ignore-android -// ignore-dragonfly -// ignore-emscripten -// ignore-freebsd +// only-windows // ignore-gnu -// ignore-haiku -// ignore-ios -// ignore-linux -// ignore-macos -// ignore-netbsd -// ignore-openbsd -// ignore-solaris -// ignore-sgx no dynamic linking // aux-build:dummy.rs // aux-build:wrapper.rs diff --git a/src/test/codegen/enum-match.rs b/src/test/codegen/enum-match.rs index efab189fd7b..44f1b408d21 100644 --- a/src/test/codegen/enum-match.rs +++ b/src/test/codegen/enum-match.rs @@ -34,11 +34,8 @@ pub enum Enum1 { // CHECK: define i8 @match1{{.*}} // CHECK-NEXT: start: -// CHECK-NEXT: %1 = icmp ugt i8 %0, 1 -// CHECK-NEXT: %2 = zext i8 %0 to i64 -// CHECK-NEXT: %3 = add nsw i64 %2, -1 -// CHECK-NEXT: %_2 = select i1 %1, i64 %3, i64 0 -// CHECK-NEXT: switch i64 %_2, label {{.*}} [ +// CHECK-NEXT: %1 = {{.*}}call i8 @llvm.usub.sat.i8(i8 %0, i8 1) +// CHECK-NEXT: switch i8 %1, label {{.*}} [ #[no_mangle] pub fn match1(e: Enum1) -> u8 { use Enum1::*; diff --git a/src/test/codegen/naked-nocoverage.rs b/src/test/codegen/naked-nocoverage.rs new file mode 100644 index 00000000000..91a6260bf2a --- /dev/null +++ b/src/test/codegen/naked-nocoverage.rs @@ -0,0 +1,19 @@ +// Checks that naked functions are not instrumented by -Cinstrument-coverage. +// Regression test for issue #105170. +// +// needs-asm-support +// needs-profiler-support +// compile-flags: -Cinstrument-coverage +#![crate_type = "lib"] +#![feature(naked_functions)] +use std::arch::asm; + +#[naked] +#[no_mangle] +pub unsafe extern "C" fn f() { + // CHECK: define void @f() + // CHECK-NEXT: start: + // CHECK-NEXT: call void asm + // CHECK-NEXT: unreachable + asm!("", options(noreturn)); +} diff --git a/src/test/codegen/panic-abort-windows.rs b/src/test/codegen/panic-abort-windows.rs index 9ee4bfc4711..2ee29762dcd 100644 --- a/src/test/codegen/panic-abort-windows.rs +++ b/src/test/codegen/panic-abort-windows.rs @@ -1,16 +1,5 @@ -// This test is for *-windows-msvc only. -// ignore-android -// ignore-dragonfly -// ignore-emscripten -// ignore-freebsd -// ignore-haiku -// ignore-ios -// ignore-linux -// ignore-macos -// ignore-netbsd -// ignore-openbsd -// ignore-solaris -// ignore-sgx +// This test is for *-windows only. +// only-windows // compile-flags: -C no-prepopulate-passes -C panic=abort -O diff --git a/src/test/mir-opt/building/custom/arbitrary_let.arbitrary_let.built.after.mir b/src/test/mir-opt/building/custom/arbitrary_let.arbitrary_let.built.after.mir new file mode 100644 index 00000000000..20dd251e7e3 --- /dev/null +++ b/src/test/mir-opt/building/custom/arbitrary_let.arbitrary_let.built.after.mir @@ -0,0 +1,22 @@ +// MIR for `arbitrary_let` after built + +fn arbitrary_let(_1: i32) -> i32 { + let mut _0: i32; // return place in scope 0 at $DIR/arbitrary_let.rs:+0:29: +0:32 + let mut _2: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _3: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + _2 = _1; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + goto -> bb2; // scope 0 at $DIR/arbitrary_let.rs:+4:13: +4:25 + } + + bb1: { + _0 = _3; // scope 0 at $DIR/arbitrary_let.rs:+7:13: +7:20 + return; // scope 0 at $DIR/arbitrary_let.rs:+8:13: +8:21 + } + + bb2: { + _3 = _2; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + goto -> bb1; // scope 0 at $DIR/arbitrary_let.rs:+12:13: +12:24 + } +} diff --git a/src/test/mir-opt/building/custom/arbitrary_let.rs b/src/test/mir-opt/building/custom/arbitrary_let.rs new file mode 100644 index 00000000000..776df3151ff --- /dev/null +++ b/src/test/mir-opt/building/custom/arbitrary_let.rs @@ -0,0 +1,28 @@ +#![feature(custom_mir, core_intrinsics)] + +extern crate core; +use core::intrinsics::mir::*; +use core::ptr::{addr_of, addr_of_mut}; + +// EMIT_MIR arbitrary_let.arbitrary_let.built.after.mir +#[custom_mir(dialect = "built")] +fn arbitrary_let(x: i32) -> i32 { + mir!( + { + let y = x; + Goto(second) + } + third = { + RET = z; + Return() + } + second = { + let z = y; + Goto(third) + } + ) +} + +fn main() { + assert_eq!(arbitrary_let(5), 5); +} diff --git a/src/test/mir-opt/building/custom/consts.consts.built.after.mir b/src/test/mir-opt/building/custom/consts.consts.built.after.mir new file mode 100644 index 00000000000..ba753cfc20c --- /dev/null +++ b/src/test/mir-opt/building/custom/consts.consts.built.after.mir @@ -0,0 +1,22 @@ +// MIR for `consts` after built + +fn consts() -> () { + let mut _0: (); // return place in scope 0 at $DIR/consts.rs:+0:27: +0:27 + let mut _1: u8; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _2: i8; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _3: u32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _4: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _5: fn() {consts::<10>}; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + _1 = const 5_u8; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _2 = const _; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _3 = const C; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _4 = const _; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _5 = consts::<10>; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + // mir::Constant + // + span: $DIR/consts.rs:16:18: 16:30 + // + literal: Const { ty: fn() {consts::<10>}, val: Value(<ZST>) } + return; // scope 0 at $DIR/consts.rs:+7:9: +7:17 + } +} diff --git a/src/test/mir-opt/building/custom/consts.rs b/src/test/mir-opt/building/custom/consts.rs new file mode 100644 index 00000000000..ff4fe1a9324 --- /dev/null +++ b/src/test/mir-opt/building/custom/consts.rs @@ -0,0 +1,36 @@ +#![feature(custom_mir, core_intrinsics, inline_const)] + +extern crate core; +use core::intrinsics::mir::*; + +const D: i32 = 5; + +// EMIT_MIR consts.consts.built.after.mir +#[custom_mir(dialect = "built")] +fn consts<const C: u32>() { + mir!({ + let _a = 5_u8; + let _b = const { 5_i8 }; + let _c = C; + let _d = D; + let _e = consts::<10>; + Return() + }) +} + +static S: i32 = 5; +static mut T: i32 = 10; +// EMIT_MIR consts.statics.built.after.mir +#[custom_mir(dialect = "built")] +fn statics() { + mir!({ + let _a: &i32 = Static(S); + let _b: *mut i32 = StaticMut(T); + Return() + }) +} + +fn main() { + consts::<5>(); + statics(); +} diff --git a/src/test/mir-opt/building/custom/consts.statics.built.after.mir b/src/test/mir-opt/building/custom/consts.statics.built.after.mir new file mode 100644 index 00000000000..ee768e263ec --- /dev/null +++ b/src/test/mir-opt/building/custom/consts.statics.built.after.mir @@ -0,0 +1,27 @@ +// MIR for `statics` after built + +fn statics() -> () { + let mut _0: (); // return place in scope 0 at $DIR/consts.rs:+0:14: +0:14 + let mut _1: &i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _2: *mut i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + _1 = const {alloc1: &i32}; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + // mir::Constant + // + span: $DIR/consts.rs:27:31: 27:32 + // + literal: Const { ty: &i32, val: Value(Scalar(alloc1)) } + _2 = const {alloc2: *mut i32}; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + // mir::Constant + // + span: $DIR/consts.rs:28:38: 28:39 + // + literal: Const { ty: *mut i32, val: Value(Scalar(alloc2)) } + return; // scope 0 at $DIR/consts.rs:+4:9: +4:17 + } +} + +alloc2 (static: T, size: 4, align: 4) { + 0a 00 00 00 │ .... +} + +alloc1 (static: S, size: 4, align: 4) { + 05 00 00 00 │ .... +} diff --git a/src/test/mir-opt/building/custom/references.immut_ref.built.after.mir b/src/test/mir-opt/building/custom/references.immut_ref.built.after.mir index 4a5ddde4081..4d38d45c0f4 100644 --- a/src/test/mir-opt/building/custom/references.immut_ref.built.after.mir +++ b/src/test/mir-opt/building/custom/references.immut_ref.built.after.mir @@ -5,10 +5,10 @@ fn immut_ref(_1: &i32) -> &i32 { let mut _2: *const i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL bb0: { - _2 = &raw const (*_1); // scope 0 at $DIR/references.rs:+0:1: +0:34 - Retag([raw] _2); // scope 0 at $DIR/references.rs:+0:1: +0:34 - _0 = &(*_2); // scope 0 at $DIR/references.rs:+0:1: +0:34 - Retag(_0); // scope 0 at $DIR/references.rs:+0:1: +0:34 - return; // scope 0 at $DIR/references.rs:+0:1: +0:34 + _2 = &raw const (*_1); // scope 0 at $DIR/references.rs:+5:13: +5:29 + Retag([raw] _2); // scope 0 at $DIR/references.rs:+6:13: +6:24 + _0 = &(*_2); // scope 0 at $DIR/references.rs:+7:13: +7:23 + Retag(_0); // scope 0 at $DIR/references.rs:+8:13: +8:23 + return; // scope 0 at $DIR/references.rs:+9:13: +9:21 } } diff --git a/src/test/mir-opt/building/custom/references.mut_ref.built.after.mir b/src/test/mir-opt/building/custom/references.mut_ref.built.after.mir index ec8509f69d1..01bc8a9cd35 100644 --- a/src/test/mir-opt/building/custom/references.mut_ref.built.after.mir +++ b/src/test/mir-opt/building/custom/references.mut_ref.built.after.mir @@ -5,10 +5,10 @@ fn mut_ref(_1: &mut i32) -> &mut i32 { let mut _2: *mut i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL bb0: { - _2 = &raw mut (*_1); // scope 0 at $DIR/references.rs:+0:1: +0:40 - Retag([raw] _2); // scope 0 at $DIR/references.rs:+0:1: +0:40 - _0 = &mut (*_2); // scope 0 at $DIR/references.rs:+0:1: +0:40 - Retag(_0); // scope 0 at $DIR/references.rs:+0:1: +0:40 - return; // scope 0 at $DIR/references.rs:+0:1: +0:40 + _2 = &raw mut (*_1); // scope 0 at $DIR/references.rs:+5:13: +5:33 + Retag([raw] _2); // scope 0 at $DIR/references.rs:+6:13: +6:24 + _0 = &mut (*_2); // scope 0 at $DIR/references.rs:+7:13: +7:26 + Retag(_0); // scope 0 at $DIR/references.rs:+8:13: +8:23 + return; // scope 0 at $DIR/references.rs:+9:13: +9:21 } } diff --git a/src/test/mir-opt/building/custom/simple_assign.simple.built.after.mir b/src/test/mir-opt/building/custom/simple_assign.simple.built.after.mir index a5a2834c2e1..d7560fde69c 100644 --- a/src/test/mir-opt/building/custom/simple_assign.simple.built.after.mir +++ b/src/test/mir-opt/building/custom/simple_assign.simple.built.after.mir @@ -6,13 +6,13 @@ fn simple(_1: i32) -> i32 { let mut _3: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL bb0: { - _2 = _1; // scope 0 at $DIR/simple_assign.rs:+0:1: +0:29 - goto -> bb1; // scope 0 at $DIR/simple_assign.rs:+0:1: +0:29 + _2 = _1; // scope 0 at $DIR/simple_assign.rs:+6:13: +6:22 + goto -> bb1; // scope 0 at $DIR/simple_assign.rs:+7:13: +7:23 } bb1: { - _3 = move _2; // scope 0 at $DIR/simple_assign.rs:+0:1: +0:29 - _0 = _3; // scope 0 at $DIR/simple_assign.rs:+0:1: +0:29 - return; // scope 0 at $DIR/simple_assign.rs:+0:1: +0:29 + _3 = move _2; // scope 0 at $DIR/simple_assign.rs:+11:13: +11:32 + _0 = _3; // scope 0 at $DIR/simple_assign.rs:+12:13: +12:24 + return; // scope 0 at $DIR/simple_assign.rs:+13:13: +13:21 } } diff --git a/src/test/mir-opt/building/custom/simple_assign.simple_ref.built.after.mir b/src/test/mir-opt/building/custom/simple_assign.simple_ref.built.after.mir index 6c90f0130a2..2b0e8f1047b 100644 --- a/src/test/mir-opt/building/custom/simple_assign.simple_ref.built.after.mir +++ b/src/test/mir-opt/building/custom/simple_assign.simple_ref.built.after.mir @@ -4,7 +4,7 @@ fn simple_ref(_1: &mut i32) -> &mut i32 { let mut _0: &mut i32; // return place in scope 0 at $DIR/simple_assign.rs:+0:35: +0:43 bb0: { - _0 = move _1; // scope 0 at $DIR/simple_assign.rs:+0:1: +0:43 - return; // scope 0 at $DIR/simple_assign.rs:+0:1: +0:43 + _0 = move _1; // scope 0 at $DIR/simple_assign.rs:+2:9: +2:22 + return; // scope 0 at $DIR/simple_assign.rs:+3:9: +3:17 } } diff --git a/src/test/run-make/macos-deployment-target/Makefile b/src/test/run-make/macos-deployment-target/Makefile new file mode 100644 index 00000000000..70fca043653 --- /dev/null +++ b/src/test/run-make/macos-deployment-target/Makefile @@ -0,0 +1,21 @@ +# only-macos +# +# Check that a set deployment target actually makes it to the linker. +# This is important since its a compatibility hazard. The linker will +# generate load commands differently based on what minimum OS it can assume. + +include ../../run-make-fulldeps/tools.mk + +ifeq ($(strip $(shell uname -m)),arm64) + GREP_PATTERN = "minos 11.0" +else + GREP_PATTERN = "version 10.9" +endif + +OUT_FILE=$(TMPDIR)/with_deployment_target.dylib +all: + env MACOSX_DEPLOYMENT_TARGET=10.9 $(RUSTC) with_deployment_target.rs -o $(OUT_FILE) +# XXX: The check is for either the x86_64 minimum OR the aarch64 minimum (M1 starts at macOS 11). +# They also use different load commands, so we let that change with each too. The aarch64 check +# isn't as robust as the x86 one, but testing both seems unneeded. + vtool -show-build $(OUT_FILE) | $(CGREP) -e $(GREP_PATTERN) diff --git a/src/test/run-make/macos-deployment-target/with_deployment_target.rs b/src/test/run-make/macos-deployment-target/with_deployment_target.rs new file mode 100644 index 00000000000..342fe0ecbcf --- /dev/null +++ b/src/test/run-make/macos-deployment-target/with_deployment_target.rs @@ -0,0 +1,4 @@ +#![crate_type = "cdylib"] + +#[allow(dead_code)] +fn something_and_nothing() {} diff --git a/src/test/rustdoc-gui/scrape-examples-fonts.goml b/src/test/rustdoc-gui/scrape-examples-fonts.goml new file mode 100644 index 00000000000..b7d7f4ccb4a --- /dev/null +++ b/src/test/rustdoc-gui/scrape-examples-fonts.goml @@ -0,0 +1,8 @@ +goto: "file://" + |DOC_PATH| + "/scrape_examples/fn.test_many.html" + +store-value: (font, '"Fira Sans", Arial, NanumBarunGothic, sans-serif') + +wait-for-css: (".scraped-example-title", {"font-family": |font|}) +wait-for-css: (".more-examples-toggle summary", {"font-family": |font|}) +wait-for-css: (".more-examples-toggle .hide-more", {"font-family": |font|}) +wait-for-css: (".example-links a", {"font-family": |font|}) diff --git a/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-1.rs b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-1.rs new file mode 100644 index 00000000000..1d1bc5002aa --- /dev/null +++ b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-1.rs @@ -0,0 +1,3 @@ +fn main() { + scrape_examples::test_many(); +} diff --git a/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-2.rs b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-2.rs new file mode 100644 index 00000000000..1d1bc5002aa --- /dev/null +++ b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-2.rs @@ -0,0 +1,3 @@ +fn main() { + scrape_examples::test_many(); +} diff --git a/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-3.rs b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-3.rs new file mode 100644 index 00000000000..1d1bc5002aa --- /dev/null +++ b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-3.rs @@ -0,0 +1,3 @@ +fn main() { + scrape_examples::test_many(); +} diff --git a/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-4.rs b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-4.rs new file mode 100644 index 00000000000..1d1bc5002aa --- /dev/null +++ b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-4.rs @@ -0,0 +1,3 @@ +fn main() { + scrape_examples::test_many(); +} diff --git a/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-5.rs b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-5.rs new file mode 100644 index 00000000000..1d1bc5002aa --- /dev/null +++ b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-5.rs @@ -0,0 +1,3 @@ +fn main() { + scrape_examples::test_many(); +} diff --git a/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-6.rs b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-6.rs new file mode 100644 index 00000000000..1d1bc5002aa --- /dev/null +++ b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-6.rs @@ -0,0 +1,3 @@ +fn main() { + scrape_examples::test_many(); +} diff --git a/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-7.rs b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-7.rs new file mode 100644 index 00000000000..1d1bc5002aa --- /dev/null +++ b/src/test/rustdoc-gui/src/scrape_examples/examples/check-many-7.rs @@ -0,0 +1,3 @@ +fn main() { + scrape_examples::test_many(); +} diff --git a/src/test/rustdoc-gui/src/scrape_examples/src/lib.rs b/src/test/rustdoc-gui/src/scrape_examples/src/lib.rs index 6412de2c03a..88b03cf2603 100644 --- a/src/test/rustdoc-gui/src/scrape_examples/src/lib.rs +++ b/src/test/rustdoc-gui/src/scrape_examples/src/lib.rs @@ -5,3 +5,5 @@ /// test(); /// ``` pub fn test() {} + +pub fn test_many() {} diff --git a/src/test/rustdoc-gui/toggle-docs.goml b/src/test/rustdoc-gui/toggle-docs.goml index 8c9fd0a8866..b7d10723767 100644 --- a/src/test/rustdoc-gui/toggle-docs.goml +++ b/src/test/rustdoc-gui/toggle-docs.goml @@ -40,3 +40,32 @@ assert-attribute-false: ( click: "#toggle-all-docs" wait-for-text: ("#toggle-all-docs", "[−]") assert-attribute: ("details.rustdoc-toggle", {"open": ""}, ALL) + +// Checking the toggles style. +show-text: true +define-function: ( + "check-color", + (theme, filter), + [ + // Setting the theme. + ("local-storage", {"rustdoc-theme": |theme|, "rustdoc-use-system-theme": "false"}), + // We reload the page so the local storage settings are being used. + ("reload"), + + ("assert-css", ("details.rustdoc-toggle > summary::before", { + "opacity": "0.5", + "filter": |filter|, + }, ALL)), + ("move-cursor-to", "details.rustdoc-toggle summary"), + ("assert-css", ("details.rustdoc-toggle > summary:hover::before", { + "opacity": "1", + "filter": |filter|, + })), + // moving the cursor somewhere else to not mess with next function calls. + ("move-cursor-to", ".search-input"), + ] +) + +call-function: ("check-color", {"theme": "ayu", "filter": "invert(1)"}) +call-function: ("check-color", {"theme": "dark", "filter": "invert(1)"}) +call-function: ("check-color", {"theme": "light", "filter": "none"}) diff --git a/src/test/rustdoc-json/intra-doc-links/auxiliary/enum_variant_in_trait_method.rs b/src/test/rustdoc-json/intra-doc-links/auxiliary/enum_variant_in_trait_method.rs new file mode 100644 index 00000000000..bfe85f59e81 --- /dev/null +++ b/src/test/rustdoc-json/intra-doc-links/auxiliary/enum_variant_in_trait_method.rs @@ -0,0 +1,8 @@ +pub trait Trait { + /// [`Enum::Variant`] + fn method() {} +} + +pub enum Enum { + Variant, +} diff --git a/src/test/rustdoc-json/intra-doc-links/foreign_variant.rs b/src/test/rustdoc-json/intra-doc-links/foreign_variant.rs new file mode 100644 index 00000000000..e2968231338 --- /dev/null +++ b/src/test/rustdoc-json/intra-doc-links/foreign_variant.rs @@ -0,0 +1,13 @@ +// Regression test for <https://github.com/rust-lang/rust/issues/105025> +// aux-build: enum_variant_in_trait_method.rs + +extern crate enum_variant_in_trait_method; + +pub struct Local; + +/// local impl +impl enum_variant_in_trait_method::Trait for Local {} + +// @!has "$.index[*][?(@.name == 'Trait')]" +// @!has "$.index[*][?(@.name == 'method')]" +// @count "$.index[*][?(@.docs == 'local impl')].inner.items[*]" 0 diff --git a/src/test/rustdoc-json/reexport/auxiliary/trait_with_docs.rs b/src/test/rustdoc-json/reexport/auxiliary/trait_with_docs.rs new file mode 100644 index 00000000000..1e87966b28a --- /dev/null +++ b/src/test/rustdoc-json/reexport/auxiliary/trait_with_docs.rs @@ -0,0 +1,2 @@ +/// The Docs +pub trait HasDocs {} diff --git a/src/test/rustdoc-json/reexport/synthesize_trait_with_docs.rs b/src/test/rustdoc-json/reexport/synthesize_trait_with_docs.rs new file mode 100644 index 00000000000..25a7c08d689 --- /dev/null +++ b/src/test/rustdoc-json/reexport/synthesize_trait_with_docs.rs @@ -0,0 +1,10 @@ +// Regression test for <https://github.com/rust-lang/rust/issues/105022> +// aux-build: trait_with_docs.rs + +extern crate trait_with_docs; + +pub struct Local; + +impl trait_with_docs::HasDocs for Local {} + +// @!has "$.index[*][?(@.name == 'HasDocs')]" diff --git a/src/test/rustdoc-json/traits/uses_extern_trait.rs b/src/test/rustdoc-json/traits/uses_extern_trait.rs index a4add43c6a1..55a51f739ab 100644 --- a/src/test/rustdoc-json/traits/uses_extern_trait.rs +++ b/src/test/rustdoc-json/traits/uses_extern_trait.rs @@ -1,12 +1,5 @@ #![no_std] pub fn drop_default<T: core::default::Default>(_x: T) {} -// FIXME(adotinthevoid): Theses shouldn't be here -// @has "$.index[*][?(@.name=='Debug')]" - -// Debug may have several items. All we depend on here the that `fmt` is first. See -// https://github.com/rust-lang/rust/pull/104525#issuecomment-1331087852 for why we -// can't use [*]. - -// @set Debug_fmt = "$.index[*][?(@.name=='Debug')].inner.items[0]" -// @has "$.index[*][?(@.name=='fmt')].id" $Debug_fmt +// @!has "$.index[*][?(@.name=='Debug')]" +// @!has "$.index[*][?(@.name=='Default')]" diff --git a/src/test/rustdoc-ui/issue-91713.stdout b/src/test/rustdoc-ui/issue-91713.stdout index a19e452b459..16783524363 100644 --- a/src/test/rustdoc-ui/issue-91713.stdout +++ b/src/test/rustdoc-ui/issue-91713.stdout @@ -5,11 +5,9 @@ check_doc_test_visibility - run various visibility-related lints on doctests strip-priv-imports - strips all private import statements (`use`, `extern crate`) from a crate propagate-doc-cfg - propagates `#[doc(cfg(...))]` to child items collect-intra-doc-links - resolves intra-doc links -check-code-block-syntax - validates syntax inside Rust code blocks collect-trait-impls - retrieves trait impls for items in the crate calculate-doc-coverage - counts the number of items with and without documentation -check-invalid-html-tags - detects invalid HTML tags in doc comments - check-bare-urls - detects URLs that are not hyperlinks + run-lints - runs some of rustdoc's lints Default passes for rustdoc: collect-trait-impls @@ -18,10 +16,8 @@ check_doc_test_visibility strip-private (when not --document-private-items) strip-priv-imports (when --document-private-items) collect-intra-doc-links -check-code-block-syntax -check-invalid-html-tags propagate-doc-cfg - check-bare-urls + run-lints Passes run with `--show-coverage`: strip-hidden (when not --document-hidden-items) diff --git a/src/test/rustdoc-ui/z-help.stdout b/src/test/rustdoc-ui/z-help.stdout index 22e37821322..55154803098 100644 --- a/src/test/rustdoc-ui/z-help.stdout +++ b/src/test/rustdoc-ui/z-help.stdout @@ -90,7 +90,6 @@ -Z no-analysis=val -- parse and expand the source, but run no analysis -Z no-codegen=val -- run all passes except codegen; no output -Z no-generate-arange-section=val -- omit DWARF address ranges that give faster lookups - -Z no-interleave-lints=val -- execute lints separately; allows benchmarking individual lints -Z no-leak-check=val -- disable the 'leak check' for subtyping; unsound, but useful for tests -Z no-link=val -- compile without linking -Z no-parallel-llvm=val -- run LLVM in non-parallel mode (while keeping codegen-units and ThinLTO) diff --git a/src/test/rustdoc/bounds-in-multiple-parts.rs b/src/test/rustdoc/bounds-in-multiple-parts.rs new file mode 100644 index 00000000000..279e3c14888 --- /dev/null +++ b/src/test/rustdoc/bounds-in-multiple-parts.rs @@ -0,0 +1,20 @@ +#![crate_name = "foo"] + +pub trait Eq {} +pub trait Eq2 {} + +// Checking that "where predicates" and "generics params" are merged. +// @has 'foo/trait.T.html' +// @has - "//*[@id='tymethod.f']/h4" "fn f<'a, 'b, 'c, T>()where Self: Eq, T: Eq + 'a, 'c: 'b + 'a," +pub trait T { + fn f<'a, 'b, 'c: 'a, T: Eq + 'a>() + where Self: Eq, Self: Eq, T: Eq, 'c: 'b; +} + +// Checking that a duplicated "where predicate" is removed. +// @has 'foo/trait.T2.html' +// @has - "//*[@id='tymethod.f']/h4" "fn f<T>()where Self: Eq + Eq2, T: Eq2 + Eq," +pub trait T2 { + fn f<T: Eq>() + where Self: Eq, Self: Eq2, T: Eq2; +} diff --git a/src/test/rustdoc/impl-parts.rs b/src/test/rustdoc/impl-parts.rs index 7b931727e44..90cbb77cb6b 100644 --- a/src/test/rustdoc/impl-parts.rs +++ b/src/test/rustdoc/impl-parts.rs @@ -6,7 +6,7 @@ pub auto trait AnAutoTrait {} pub struct Foo<T> { field: T } // @has impl_parts/struct.Foo.html '//*[@class="impl has-srclink"]//h3[@class="code-header"]' \ -// "impl<T: Clone> !AnAutoTrait for Foo<T>where T: Sync," +// "impl<T> !AnAutoTrait for Foo<T>where T: Sync + Clone," // @has impl_parts/trait.AnAutoTrait.html '//*[@id="implementors-list"]//h3[@class="code-header"]' \ -// "impl<T: Clone> !AnAutoTrait for Foo<T>where T: Sync," +// "impl<T> !AnAutoTrait for Foo<T>where T: Sync + Clone," impl<T: Clone> !AnAutoTrait for Foo<T> where T: Sync {} diff --git a/src/test/rustdoc/rfc-2632-const-trait-impl.rs b/src/test/rustdoc/rfc-2632-const-trait-impl.rs index 602ee1b1b1f..7ed9d6729b6 100644 --- a/src/test/rustdoc/rfc-2632-const-trait-impl.rs +++ b/src/test/rustdoc/rfc-2632-const-trait-impl.rs @@ -61,7 +61,7 @@ impl<T> S<T> { // @has - '//section[@id="method.foo"]/h4[@class="code-header"]/a[@class="trait"]' 'Clone' // @!has - '//section[@id="method.foo"]/h4[@class="code-header"]/span[@class="where"]' '~const' // @has - '//section[@id="method.foo"]/h4[@class="code-header"]/span[@class="where fmt-newline"]' ': Clone' - pub const fn foo<B: ~const Clone + ~const Destruct>() + pub const fn foo<B, C: ~const Clone + ~const Destruct>() where B: ~const Clone + ~const Destruct, { diff --git a/src/test/rustdoc/whitespace-after-where-clause.enum.html b/src/test/rustdoc/whitespace-after-where-clause.enum.html index c74866f4a10..f7663e4616a 100644 --- a/src/test/rustdoc/whitespace-after-where-clause.enum.html +++ b/src/test/rustdoc/whitespace-after-where-clause.enum.html @@ -1,4 +1,4 @@ -<div class="item-decl"><pre class="rust enum"><code>pub enum Cow<'a, B: ?<a class="trait" href="{{channel}}/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a><span class="where fmt-newline">where<br />    B: <a class="trait" href="trait.ToOwned.html" title="trait foo::ToOwned">ToOwned</a><dyn <a class="trait" href="{{channel}}/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>>,</span>{ +<div class="item-decl"><pre class="rust enum"><code>pub enum Cow<'a, B><span class="where fmt-newline">where<br />    B: <a class="trait" href="trait.ToOwned.html" title="trait foo::ToOwned">ToOwned</a><dyn <a class="trait" href="{{channel}}/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>> + ?<a class="trait" href="{{channel}}/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a,</span>{ Borrowed(<a class="primitive" href="{{channel}}/std/primitive.reference.html">&'a </a>B), Whatever(<a class="primitive" href="{{channel}}/std/primitive.u32.html">u32</a>), }</code></pre></div> \ No newline at end of file diff --git a/src/test/rustdoc/whitespace-after-where-clause.struct.html b/src/test/rustdoc/whitespace-after-where-clause.struct.html index 1ba1367d20f..fa3f224e7ad 100644 --- a/src/test/rustdoc/whitespace-after-where-clause.struct.html +++ b/src/test/rustdoc/whitespace-after-where-clause.struct.html @@ -1,4 +1,4 @@ -<div class="item-decl"><pre class="rust struct"><code>pub struct Struct<'a, B: ?<a class="trait" href="{{channel}}/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a><span class="where fmt-newline">where<br />    B: <a class="trait" href="trait.ToOwned.html" title="trait foo::ToOwned">ToOwned</a><dyn <a class="trait" href="{{channel}}/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>>,</span>{ +<div class="item-decl"><pre class="rust struct"><code>pub struct Struct<'a, B><span class="where fmt-newline">where<br />    B: <a class="trait" href="trait.ToOwned.html" title="trait foo::ToOwned">ToOwned</a><dyn <a class="trait" href="{{channel}}/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>> + ?<a class="trait" href="{{channel}}/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a,</span>{ pub a: <a class="primitive" href="{{channel}}/std/primitive.reference.html">&'a </a>B, pub b: <a class="primitive" href="{{channel}}/std/primitive.u32.html">u32</a>, }</code></pre></div> \ No newline at end of file diff --git a/src/test/rustdoc/whitespace-after-where-clause.union.html b/src/test/rustdoc/whitespace-after-where-clause.union.html index 0dfb6407d45..7bb177debc3 100644 --- a/src/test/rustdoc/whitespace-after-where-clause.union.html +++ b/src/test/rustdoc/whitespace-after-where-clause.union.html @@ -1,3 +1,3 @@ -<div class="item-decl"><pre class="rust union"><code>pub union Union<'a, B: ?<a class="trait" href="{{channel}}/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a><span class="where fmt-newline">where<br />    B: <a class="trait" href="trait.ToOwned.html" title="trait foo::ToOwned">ToOwned</a><dyn <a class="trait" href="{{channel}}/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>>,</span>{ +<div class="item-decl"><pre class="rust union"><code>pub union Union<'a, B><span class="where fmt-newline">where<br />    B: <a class="trait" href="trait.ToOwned.html" title="trait foo::ToOwned">ToOwned</a><dyn <a class="trait" href="{{channel}}/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>> + ?<a class="trait" href="{{channel}}/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a,</span>{ /* private fields */ }</code></pre></div> \ No newline at end of file diff --git a/src/test/ui-fulldeps/lint-plugin-cmdline-load.stderr b/src/test/ui-fulldeps/lint-plugin-cmdline-load.stderr index 981631494fa..82679c9e10a 100644 --- a/src/test/ui-fulldeps/lint-plugin-cmdline-load.stderr +++ b/src/test/ui-fulldeps/lint-plugin-cmdline-load.stderr @@ -1,11 +1,3 @@ -warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 - --> <crate attribute>:1:1 - | -LL | plugin(lint_plugin_test) - | ^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version - | - = note: `#[warn(deprecated)]` on by default - warning: item is named 'lintme' --> $DIR/lint-plugin-cmdline-load.rs:8:1 | @@ -14,5 +6,13 @@ LL | fn lintme() { } | = note: `#[warn(test_lint)]` on by default +warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 + --> <crate attribute>:1:1 + | +LL | plugin(lint_plugin_test) + | ^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version + | + = note: `#[warn(deprecated)]` on by default + warning: 2 warnings emitted diff --git a/src/test/ui-fulldeps/lint-plugin-deny-attr.stderr b/src/test/ui-fulldeps/lint-plugin-deny-attr.stderr index b9774c04462..5e8891bf1f1 100644 --- a/src/test/ui-fulldeps/lint-plugin-deny-attr.stderr +++ b/src/test/ui-fulldeps/lint-plugin-deny-attr.stderr @@ -1,11 +1,3 @@ -warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 - --> $DIR/lint-plugin-deny-attr.rs:5:1 - | -LL | #![plugin(lint_plugin_test)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version - | - = note: `#[warn(deprecated)]` on by default - error: item is named 'lintme' --> $DIR/lint-plugin-deny-attr.rs:9:1 | @@ -18,5 +10,13 @@ note: the lint level is defined here LL | #![deny(test_lint)] | ^^^^^^^^^ +warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 + --> $DIR/lint-plugin-deny-attr.rs:5:1 + | +LL | #![plugin(lint_plugin_test)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version + | + = note: `#[warn(deprecated)]` on by default + error: aborting due to previous error; 1 warning emitted diff --git a/src/test/ui-fulldeps/lint-plugin-deny-cmdline.stderr b/src/test/ui-fulldeps/lint-plugin-deny-cmdline.stderr index cbabb09f6a5..d5d6b535214 100644 --- a/src/test/ui-fulldeps/lint-plugin-deny-cmdline.stderr +++ b/src/test/ui-fulldeps/lint-plugin-deny-cmdline.stderr @@ -1,11 +1,3 @@ -warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 - --> $DIR/lint-plugin-deny-cmdline.rs:6:1 - | -LL | #![plugin(lint_plugin_test)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version - | - = note: `#[warn(deprecated)]` on by default - error: item is named 'lintme' --> $DIR/lint-plugin-deny-cmdline.rs:9:1 | @@ -14,5 +6,13 @@ LL | fn lintme() { } | = note: requested on the command line with `-D test-lint` +warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 + --> $DIR/lint-plugin-deny-cmdline.rs:6:1 + | +LL | #![plugin(lint_plugin_test)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version + | + = note: `#[warn(deprecated)]` on by default + error: aborting due to previous error; 1 warning emitted diff --git a/src/test/ui-fulldeps/lint-plugin-forbid-attrs.rs b/src/test/ui-fulldeps/lint-plugin-forbid-attrs.rs index 4833f6971c1..cf31b3ec158 100644 --- a/src/test/ui-fulldeps/lint-plugin-forbid-attrs.rs +++ b/src/test/ui-fulldeps/lint-plugin-forbid-attrs.rs @@ -11,7 +11,6 @@ fn lintme() {} //~ ERROR item is named 'lintme' #[allow(test_lint)] //~^ ERROR allow(test_lint) incompatible //~| ERROR allow(test_lint) incompatible -//~| ERROR allow(test_lint) incompatible pub fn main() { lintme(); } diff --git a/src/test/ui-fulldeps/lint-plugin-forbid-attrs.stderr b/src/test/ui-fulldeps/lint-plugin-forbid-attrs.stderr index e11a4f84493..ae34b25cc2f 100644 --- a/src/test/ui-fulldeps/lint-plugin-forbid-attrs.stderr +++ b/src/test/ui-fulldeps/lint-plugin-forbid-attrs.stderr @@ -7,23 +7,6 @@ LL | #![forbid(test_lint)] LL | #[allow(test_lint)] | ^^^^^^^^^ overruled by previous forbid -error[E0453]: allow(test_lint) incompatible with previous forbid - --> $DIR/lint-plugin-forbid-attrs.rs:11:9 - | -LL | #![forbid(test_lint)] - | --------- `forbid` level set here -... -LL | #[allow(test_lint)] - | ^^^^^^^^^ overruled by previous forbid - -warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 - --> $DIR/lint-plugin-forbid-attrs.rs:5:1 - | -LL | #![plugin(lint_plugin_test)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version - | - = note: `#[warn(deprecated)]` on by default - error: item is named 'lintme' --> $DIR/lint-plugin-forbid-attrs.rs:9:1 | @@ -45,6 +28,14 @@ LL | #![forbid(test_lint)] LL | #[allow(test_lint)] | ^^^^^^^^^ overruled by previous forbid -error: aborting due to 4 previous errors; 1 warning emitted +warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 + --> $DIR/lint-plugin-forbid-attrs.rs:5:1 + | +LL | #![plugin(lint_plugin_test)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version + | + = note: `#[warn(deprecated)]` on by default + +error: aborting due to 3 previous errors; 1 warning emitted For more information about this error, try `rustc --explain E0453`. diff --git a/src/test/ui-fulldeps/lint-plugin-forbid-cmdline.rs b/src/test/ui-fulldeps/lint-plugin-forbid-cmdline.rs index ce034ee38d7..b9d1aa85a69 100644 --- a/src/test/ui-fulldeps/lint-plugin-forbid-cmdline.rs +++ b/src/test/ui-fulldeps/lint-plugin-forbid-cmdline.rs @@ -9,7 +9,7 @@ fn lintme() { } //~ ERROR item is named 'lintme' #[allow(test_lint)] //~ ERROR allow(test_lint) incompatible //~| ERROR allow(test_lint) incompatible - //~| ERROR allow(test_lint) + pub fn main() { lintme(); } diff --git a/src/test/ui-fulldeps/lint-plugin-forbid-cmdline.stderr b/src/test/ui-fulldeps/lint-plugin-forbid-cmdline.stderr index 09c19af617a..491c4d20646 100644 --- a/src/test/ui-fulldeps/lint-plugin-forbid-cmdline.stderr +++ b/src/test/ui-fulldeps/lint-plugin-forbid-cmdline.stderr @@ -6,22 +6,6 @@ LL | #[allow(test_lint)] | = note: `forbid` lint level was set on command line -error[E0453]: allow(test_lint) incompatible with previous forbid - --> $DIR/lint-plugin-forbid-cmdline.rs:10:9 - | -LL | #[allow(test_lint)] - | ^^^^^^^^^ overruled by previous forbid - | - = note: `forbid` lint level was set on command line - -warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 - --> $DIR/lint-plugin-forbid-cmdline.rs:6:1 - | -LL | #![plugin(lint_plugin_test)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version - | - = note: `#[warn(deprecated)]` on by default - error: item is named 'lintme' --> $DIR/lint-plugin-forbid-cmdline.rs:8:1 | @@ -38,6 +22,14 @@ LL | #[allow(test_lint)] | = note: `forbid` lint level was set on command line -error: aborting due to 4 previous errors; 1 warning emitted +warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 + --> $DIR/lint-plugin-forbid-cmdline.rs:6:1 + | +LL | #![plugin(lint_plugin_test)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version + | + = note: `#[warn(deprecated)]` on by default + +error: aborting due to 3 previous errors; 1 warning emitted For more information about this error, try `rustc --explain E0453`. diff --git a/src/test/ui-fulldeps/lint-plugin.stderr b/src/test/ui-fulldeps/lint-plugin.stderr index 765832071cb..dd5d3d72ecf 100644 --- a/src/test/ui-fulldeps/lint-plugin.stderr +++ b/src/test/ui-fulldeps/lint-plugin.stderr @@ -1,11 +1,3 @@ -warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 - --> $DIR/lint-plugin.rs:5:1 - | -LL | #![plugin(lint_plugin_test)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version - | - = note: `#[warn(deprecated)]` on by default - warning: item is named 'lintme' --> $DIR/lint-plugin.rs:8:1 | @@ -14,5 +6,13 @@ LL | fn lintme() { } | = note: `#[warn(test_lint)]` on by default +warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 + --> $DIR/lint-plugin.rs:5:1 + | +LL | #![plugin(lint_plugin_test)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version + | + = note: `#[warn(deprecated)]` on by default + warning: 2 warnings emitted diff --git a/src/test/ui-fulldeps/lint-tool-cmdline-allow.stderr b/src/test/ui-fulldeps/lint-tool-cmdline-allow.stderr index b4fb9e22da4..b060e3a3e38 100644 --- a/src/test/ui-fulldeps/lint-tool-cmdline-allow.stderr +++ b/src/test/ui-fulldeps/lint-tool-cmdline-allow.stderr @@ -6,18 +6,6 @@ warning: lint name `test_lint` is deprecated and does not have an effect anymore | = note: requested on the command line with `-A test_lint` -warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 - --> $DIR/lint-tool-cmdline-allow.rs:7:1 - | -LL | #![plugin(lint_tool_test)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version - | - = note: `#[warn(deprecated)]` on by default - -warning: lint name `test_lint` is deprecated and does not have an effect anymore. Use: clippy::test_lint - | - = note: requested on the command line with `-A test_lint` - warning: item is named 'lintme' --> $DIR/lint-tool-cmdline-allow.rs:9:1 | @@ -26,9 +14,17 @@ LL | fn lintme() {} | = note: `#[warn(clippy::test_lint)]` on by default +warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 + --> $DIR/lint-tool-cmdline-allow.rs:7:1 + | +LL | #![plugin(lint_tool_test)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version + | + = note: `#[warn(deprecated)]` on by default + warning: lint name `test_lint` is deprecated and does not have an effect anymore. Use: clippy::test_lint | = note: requested on the command line with `-A test_lint` -warning: 6 warnings emitted +warning: 5 warnings emitted diff --git a/src/test/ui-fulldeps/lint-tool-test.rs b/src/test/ui-fulldeps/lint-tool-test.rs index 0d04eb6fcfa..f92bcd213b8 100644 --- a/src/test/ui-fulldeps/lint-tool-test.rs +++ b/src/test/ui-fulldeps/lint-tool-test.rs @@ -10,12 +10,10 @@ //~^ WARNING lint name `test_lint` is deprecated and may not have an effect in the future //~| WARNING lint name `test_lint` is deprecated and may not have an effect in the future //~| WARNING lint name `test_lint` is deprecated and may not have an effect in the future -//~| WARNING lint name `test_lint` is deprecated and may not have an effect in the future #![deny(clippy_group)] //~^ WARNING lint name `clippy_group` is deprecated and may not have an effect in the future //~| WARNING lint name `clippy_group` is deprecated and may not have an effect in the future //~| WARNING lint name `clippy_group` is deprecated and may not have an effect in the future -//~| WARNING lint name `clippy_group` is deprecated and may not have an effect in the future fn lintme() { } //~ ERROR item is named 'lintme' @@ -32,7 +30,6 @@ pub fn main() { //~^ WARNING lint name `test_group` is deprecated and may not have an effect in the future //~| WARNING lint name `test_group` is deprecated and may not have an effect in the future //~| WARNING lint name `test_group` is deprecated and may not have an effect in the future -//~| WARNING lint name `test_group` is deprecated and may not have an effect in the future #[deny(this_lint_does_not_exist)] //~ WARNING unknown lint: `this_lint_does_not_exist` fn hello() { fn lintmetoo() { } diff --git a/src/test/ui-fulldeps/lint-tool-test.stderr b/src/test/ui-fulldeps/lint-tool-test.stderr index af9b8dedc73..027cf8f80cf 100644 --- a/src/test/ui-fulldeps/lint-tool-test.stderr +++ b/src/test/ui-fulldeps/lint-tool-test.stderr @@ -7,13 +7,13 @@ LL | #![cfg_attr(foo, warn(test_lint))] = note: `#[warn(renamed_and_removed_lints)]` on by default warning: lint name `clippy_group` is deprecated and may not have an effect in the future. - --> $DIR/lint-tool-test.rs:14:9 + --> $DIR/lint-tool-test.rs:13:9 | LL | #![deny(clippy_group)] | ^^^^^^^^^^^^ help: change it to: `clippy::group` warning: lint name `test_group` is deprecated and may not have an effect in the future. - --> $DIR/lint-tool-test.rs:31:9 + --> $DIR/lint-tool-test.rs:29:9 | LL | #[allow(test_group)] | ^^^^^^^^^^ help: change it to: `clippy::test_group` @@ -25,60 +25,26 @@ LL | #![cfg_attr(foo, warn(test_lint))] | ^^^^^^^^^ help: change it to: `clippy::test_lint` warning: lint name `clippy_group` is deprecated and may not have an effect in the future. - --> $DIR/lint-tool-test.rs:14:9 - | -LL | #![deny(clippy_group)] - | ^^^^^^^^^^^^ help: change it to: `clippy::group` - -warning: lint name `test_group` is deprecated and may not have an effect in the future. - --> $DIR/lint-tool-test.rs:31:9 - | -LL | #[allow(test_group)] - | ^^^^^^^^^^ help: change it to: `clippy::test_group` - -warning: unknown lint: `this_lint_does_not_exist` - --> $DIR/lint-tool-test.rs:36:8 - | -LL | #[deny(this_lint_does_not_exist)] - | ^^^^^^^^^^^^^^^^^^^^^^^^ - | - = note: `#[warn(unknown_lints)]` on by default - -warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 - --> $DIR/lint-tool-test.rs:6:1 - | -LL | #![plugin(lint_tool_test)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version - | - = note: `#[warn(deprecated)]` on by default - -warning: lint name `test_lint` is deprecated and may not have an effect in the future. - --> $DIR/lint-tool-test.rs:9:23 - | -LL | #![cfg_attr(foo, warn(test_lint))] - | ^^^^^^^^^ help: change it to: `clippy::test_lint` - -warning: lint name `clippy_group` is deprecated and may not have an effect in the future. - --> $DIR/lint-tool-test.rs:14:9 + --> $DIR/lint-tool-test.rs:13:9 | LL | #![deny(clippy_group)] | ^^^^^^^^^^^^ help: change it to: `clippy::group` error: item is named 'lintme' - --> $DIR/lint-tool-test.rs:20:1 + --> $DIR/lint-tool-test.rs:18:1 | LL | fn lintme() { } | ^^^^^^^^^^^^^^^ | note: the lint level is defined here - --> $DIR/lint-tool-test.rs:14:9 + --> $DIR/lint-tool-test.rs:13:9 | LL | #![deny(clippy_group)] | ^^^^^^^^^^^^ = note: `#[deny(clippy::test_lint)]` implied by `#[deny(clippy::group)]` error: item is named 'lintmetoo' - --> $DIR/lint-tool-test.rs:28:5 + --> $DIR/lint-tool-test.rs:26:5 | LL | fn lintmetoo() { } | ^^^^^^^^^^^^^^^^^^ @@ -86,11 +52,27 @@ LL | fn lintmetoo() { } = note: `#[deny(clippy::test_group)]` implied by `#[deny(clippy::group)]` warning: lint name `test_group` is deprecated and may not have an effect in the future. - --> $DIR/lint-tool-test.rs:31:9 + --> $DIR/lint-tool-test.rs:29:9 | LL | #[allow(test_group)] | ^^^^^^^^^^ help: change it to: `clippy::test_group` +warning: unknown lint: `this_lint_does_not_exist` + --> $DIR/lint-tool-test.rs:33:8 + | +LL | #[deny(this_lint_does_not_exist)] + | ^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: `#[warn(unknown_lints)]` on by default + +warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675 + --> $DIR/lint-tool-test.rs:6:1 + | +LL | #![plugin(lint_tool_test)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version + | + = note: `#[warn(deprecated)]` on by default + warning: lint name `test_lint` is deprecated and may not have an effect in the future. --> $DIR/lint-tool-test.rs:9:23 | @@ -98,16 +80,16 @@ LL | #![cfg_attr(foo, warn(test_lint))] | ^^^^^^^^^ help: change it to: `clippy::test_lint` warning: lint name `clippy_group` is deprecated and may not have an effect in the future. - --> $DIR/lint-tool-test.rs:14:9 + --> $DIR/lint-tool-test.rs:13:9 | LL | #![deny(clippy_group)] | ^^^^^^^^^^^^ help: change it to: `clippy::group` warning: lint name `test_group` is deprecated and may not have an effect in the future. - --> $DIR/lint-tool-test.rs:31:9 + --> $DIR/lint-tool-test.rs:29:9 | LL | #[allow(test_group)] | ^^^^^^^^^^ help: change it to: `clippy::test_group` -error: aborting due to 2 previous errors; 14 warnings emitted +error: aborting due to 2 previous errors; 11 warnings emitted diff --git a/src/test/ui-fulldeps/pprust-expr-roundtrip.rs b/src/test/ui-fulldeps/pprust-expr-roundtrip.rs index d6dc179da7f..a93ba87470a 100644 --- a/src/test/ui-fulldeps/pprust-expr-roundtrip.rs +++ b/src/test/ui-fulldeps/pprust-expr-roundtrip.rs @@ -126,6 +126,7 @@ fn iter_exprs(depth: usize, f: &mut dyn FnMut(P<Expr>)) { fn_decl: decl.clone(), body: e, fn_decl_span: DUMMY_SP, + fn_arg_span: DUMMY_SP, }))) }); } diff --git a/src/test/ui/associated-consts/issue-47814.rs b/src/test/ui/associated-consts/issue-47814.rs new file mode 100644 index 00000000000..a28b1c00113 --- /dev/null +++ b/src/test/ui/associated-consts/issue-47814.rs @@ -0,0 +1,14 @@ +struct ArpIPv4<'a> { + s: &'a u8 +} + +impl<'a> ArpIPv4<'a> { + const LENGTH: usize = 20; + + pub fn to_buffer() -> [u8; Self::LENGTH] { + //~^ ERROR: generic `Self` types are currently not permitted in anonymous constants + unimplemented!() + } +} + +fn main() {} diff --git a/src/test/ui/associated-consts/issue-47814.stderr b/src/test/ui/associated-consts/issue-47814.stderr new file mode 100644 index 00000000000..2e4ddb81166 --- /dev/null +++ b/src/test/ui/associated-consts/issue-47814.stderr @@ -0,0 +1,14 @@ +error: generic `Self` types are currently not permitted in anonymous constants + --> $DIR/issue-47814.rs:8:32 + | +LL | pub fn to_buffer() -> [u8; Self::LENGTH] { + | ^^^^ + | +note: not a concrete type + --> $DIR/issue-47814.rs:5:10 + | +LL | impl<'a> ArpIPv4<'a> { + | ^^^^^^^^^^^ + +error: aborting due to previous error + diff --git a/src/test/ui/associated-consts/issue-93835.rs b/src/test/ui/associated-consts/issue-93835.rs index 5c7b065983e..b2a437fcbfb 100644 --- a/src/test/ui/associated-consts/issue-93835.rs +++ b/src/test/ui/associated-consts/issue-93835.rs @@ -1,9 +1,11 @@ +#![feature(type_ascription)] + fn e() { - p:a<p:p<e=6>> - //~^ ERROR comparison operators + type_ascribe!(p, a<p:p<e=6>>); + //~^ ERROR cannot find type `a` in this scope //~| ERROR cannot find value //~| ERROR associated const equality - //~| ERROR associated const equality + //~| ERROR cannot find trait `p` in this scope //~| ERROR associated type bounds } diff --git a/src/test/ui/associated-consts/issue-93835.stderr b/src/test/ui/associated-consts/issue-93835.stderr index 0406a16a397..be0573a1301 100644 --- a/src/test/ui/associated-consts/issue-93835.stderr +++ b/src/test/ui/associated-consts/issue-93835.stderr @@ -1,65 +1,40 @@ -error: comparison operators cannot be chained - --> $DIR/issue-93835.rs:2:8 - | -LL | fn e() { - | - while parsing this struct -LL | p:a<p:p<e=6>> - | ^ ^ - | - = help: use `::<...>` instead of `<...>` to specify lifetime, type, or const arguments - = help: or use `(...)` if you meant to specify fn arguments - error[E0425]: cannot find value `p` in this scope - --> $DIR/issue-93835.rs:2:5 - | -LL | p:a<p:p<e=6>> - | ^ not found in this scope - | -help: you might have meant to write a `struct` literal - | -LL ~ fn e() { SomeStruct { -LL | p:a<p:p<e=6>> - ... -LL | -LL ~ }} + --> $DIR/issue-93835.rs:4:19 | -help: maybe you meant to write a path separator here - | -LL | p::a<p:p<e=6>> - | ~~ -help: maybe you meant to write an assignment here - | -LL | let p:a<p:p<e=6>> - | ~~~~~ +LL | type_ascribe!(p, a<p:p<e=6>>); + | ^ not found in this scope -error[E0658]: associated const equality is incomplete - --> $DIR/issue-93835.rs:2:13 +error[E0412]: cannot find type `a` in this scope + --> $DIR/issue-93835.rs:4:22 | -LL | p:a<p:p<e=6>> - | ^^^ +LL | type_ascribe!(p, a<p:p<e=6>>); + | ^ not found in this scope + +error[E0405]: cannot find trait `p` in this scope + --> $DIR/issue-93835.rs:4:26 | - = note: see issue #92827 <https://github.com/rust-lang/rust/issues/92827> for more information - = help: add `#![feature(associated_const_equality)]` to the crate attributes to enable +LL | type_ascribe!(p, a<p:p<e=6>>); + | ^ not found in this scope error[E0658]: associated const equality is incomplete - --> $DIR/issue-93835.rs:2:13 + --> $DIR/issue-93835.rs:4:28 | -LL | p:a<p:p<e=6>> - | ^^^ +LL | type_ascribe!(p, a<p:p<e=6>>); + | ^^^ | = note: see issue #92827 <https://github.com/rust-lang/rust/issues/92827> for more information = help: add `#![feature(associated_const_equality)]` to the crate attributes to enable error[E0658]: associated type bounds are unstable - --> $DIR/issue-93835.rs:2:9 + --> $DIR/issue-93835.rs:4:24 | -LL | p:a<p:p<e=6>> - | ^^^^^^^^ +LL | type_ascribe!(p, a<p:p<e=6>>); + | ^^^^^^^^ | = note: see issue #52662 <https://github.com/rust-lang/rust/issues/52662> for more information = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable error: aborting due to 5 previous errors -Some errors have detailed explanations: E0425, E0658. -For more information about an error, try `rustc --explain E0425`. +Some errors have detailed explanations: E0405, E0412, E0425, E0658. +For more information about an error, try `rustc --explain E0405`. diff --git a/src/test/ui/associated-inherent-types/struct-generics.rs b/src/test/ui/associated-inherent-types/struct-generics.rs new file mode 100644 index 00000000000..8952b379173 --- /dev/null +++ b/src/test/ui/associated-inherent-types/struct-generics.rs @@ -0,0 +1,15 @@ +// check-pass + +#![feature(inherent_associated_types)] +#![allow(incomplete_features)] + +struct S<T>(T); + +impl<T> S<T> { + type P = T; +} + +fn main() { + type A = S<()>::P; + let _: A = (); +} diff --git a/src/test/ui/async-await/generator-not-future.rs b/src/test/ui/async-await/generator-not-future.rs new file mode 100644 index 00000000000..37d7cfa6fb7 --- /dev/null +++ b/src/test/ui/async-await/generator-not-future.rs @@ -0,0 +1,45 @@ +// edition:2018 +#![feature(generators, generator_trait)] + +use std::future::Future; +use std::ops::Generator; + +async fn async_fn() {} +fn returns_async_block() -> impl Future<Output = ()> { + async {} +} +fn returns_generator() -> impl Generator<(), Yield = (), Return = ()> { + || { + let _: () = yield (); + } +} + +fn takes_future(_f: impl Future<Output = ()>) {} +fn takes_generator<ResumeTy>(_g: impl Generator<ResumeTy, Yield = (), Return = ()>) {} + +fn main() { + // okay: + takes_future(async_fn()); + takes_future(returns_async_block()); + takes_future(async {}); + takes_generator(returns_generator()); + takes_generator(|| { + let _: () = yield (); + }); + + // async futures are not generators: + takes_generator(async_fn()); + //~^ ERROR the trait bound + takes_generator(returns_async_block()); + //~^ ERROR the trait bound + takes_generator(async {}); + //~^ ERROR the trait bound + + // generators are not futures: + takes_future(returns_generator()); + //~^ ERROR is not a future + takes_future(|ctx| { + //~^ ERROR is not a future + ctx = yield (); + }); +} diff --git a/src/test/ui/async-await/generator-not-future.stderr b/src/test/ui/async-await/generator-not-future.stderr new file mode 100644 index 00000000000..1b81b461f0a --- /dev/null +++ b/src/test/ui/async-await/generator-not-future.stderr @@ -0,0 +1,81 @@ +error[E0277]: the trait bound `impl Future<Output = ()>: Generator<_>` is not satisfied + --> $DIR/generator-not-future.rs:31:21 + | +LL | takes_generator(async_fn()); + | --------------- ^^^^^^^^^^ the trait `Generator<_>` is not implemented for `impl Future<Output = ()>` + | | + | required by a bound introduced by this call + | +note: required by a bound in `takes_generator` + --> $DIR/generator-not-future.rs:18:39 + | +LL | fn takes_generator<ResumeTy>(_g: impl Generator<ResumeTy, Yield = (), Return = ()>) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_generator` + +error[E0277]: the trait bound `impl Future<Output = ()>: Generator<_>` is not satisfied + --> $DIR/generator-not-future.rs:33:21 + | +LL | takes_generator(returns_async_block()); + | --------------- ^^^^^^^^^^^^^^^^^^^^^ the trait `Generator<_>` is not implemented for `impl Future<Output = ()>` + | | + | required by a bound introduced by this call + | +note: required by a bound in `takes_generator` + --> $DIR/generator-not-future.rs:18:39 + | +LL | fn takes_generator<ResumeTy>(_g: impl Generator<ResumeTy, Yield = (), Return = ()>) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_generator` + +error[E0277]: the trait bound `[async block@$DIR/generator-not-future.rs:35:21: 35:29]: Generator<_>` is not satisfied + --> $DIR/generator-not-future.rs:35:21 + | +LL | takes_generator(async {}); + | --------------- ^^^^^^^^ the trait `Generator<_>` is not implemented for `[async block@$DIR/generator-not-future.rs:35:21: 35:29]` + | | + | required by a bound introduced by this call + | +note: required by a bound in `takes_generator` + --> $DIR/generator-not-future.rs:18:39 + | +LL | fn takes_generator<ResumeTy>(_g: impl Generator<ResumeTy, Yield = (), Return = ()>) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_generator` + +error[E0277]: `impl Generator<Yield = (), Return = ()>` is not a future + --> $DIR/generator-not-future.rs:39:18 + | +LL | takes_future(returns_generator()); + | ------------ ^^^^^^^^^^^^^^^^^^^ `impl Generator<Yield = (), Return = ()>` is not a future + | | + | required by a bound introduced by this call + | + = help: the trait `Future` is not implemented for `impl Generator<Yield = (), Return = ()>` + = note: impl Generator<Yield = (), Return = ()> must be a future or must implement `IntoFuture` to be awaited +note: required by a bound in `takes_future` + --> $DIR/generator-not-future.rs:17:26 + | +LL | fn takes_future(_f: impl Future<Output = ()>) {} + | ^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_future` + +error[E0277]: `[generator@$DIR/generator-not-future.rs:41:18: 41:23]` is not a future + --> $DIR/generator-not-future.rs:41:18 + | +LL | takes_future(|ctx| { + | _____------------_^ + | | | + | | required by a bound introduced by this call +LL | | +LL | | ctx = yield (); +LL | | }); + | |_____^ `[generator@$DIR/generator-not-future.rs:41:18: 41:23]` is not a future + | + = help: the trait `Future` is not implemented for `[generator@$DIR/generator-not-future.rs:41:18: 41:23]` + = note: [generator@$DIR/generator-not-future.rs:41:18: 41:23] must be a future or must implement `IntoFuture` to be awaited +note: required by a bound in `takes_future` + --> $DIR/generator-not-future.rs:17:26 + | +LL | fn takes_future(_f: impl Future<Output = ()>) {} + | ^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_future` + +error: aborting due to 5 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/src/test/ui/async-await/in-trait/async-generics-and-bounds.stderr b/src/test/ui/async-await/in-trait/async-generics-and-bounds.stderr index 5c8d64fc6cb..f1f0d7e5907 100644 --- a/src/test/ui/async-await/in-trait/async-generics-and-bounds.stderr +++ b/src/test/ui/async-await/in-trait/async-generics-and-bounds.stderr @@ -4,11 +4,11 @@ error[E0311]: the parameter type `U` may not live long enough LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; | ^^^^^^^ | -note: the parameter type `U` must be valid for the anonymous lifetime as defined here... +note: the parameter type `U` must be valid for the anonymous lifetime defined here... --> $DIR/async-generics-and-bounds.rs:12:18 | LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; - | ^ + | ^^^^^ note: ...so that the reference type `&(T, U)` does not outlive the data it points at --> $DIR/async-generics-and-bounds.rs:12:28 | @@ -21,11 +21,11 @@ error[E0311]: the parameter type `T` may not live long enough LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; | ^^^^^^^ | -note: the parameter type `T` must be valid for the anonymous lifetime as defined here... +note: the parameter type `T` must be valid for the anonymous lifetime defined here... --> $DIR/async-generics-and-bounds.rs:12:18 | LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; - | ^ + | ^^^^^ note: ...so that the reference type `&(T, U)` does not outlive the data it points at --> $DIR/async-generics-and-bounds.rs:12:28 | diff --git a/src/test/ui/async-await/in-trait/async-generics.stderr b/src/test/ui/async-await/in-trait/async-generics.stderr index 6ae73d9e3a6..2f05564564c 100644 --- a/src/test/ui/async-await/in-trait/async-generics.stderr +++ b/src/test/ui/async-await/in-trait/async-generics.stderr @@ -4,11 +4,11 @@ error[E0311]: the parameter type `U` may not live long enough LL | async fn foo(&self) -> &(T, U); | ^^^^^^^ | -note: the parameter type `U` must be valid for the anonymous lifetime as defined here... +note: the parameter type `U` must be valid for the anonymous lifetime defined here... --> $DIR/async-generics.rs:9:18 | LL | async fn foo(&self) -> &(T, U); - | ^ + | ^^^^^ note: ...so that the reference type `&(T, U)` does not outlive the data it points at --> $DIR/async-generics.rs:9:28 | @@ -21,11 +21,11 @@ error[E0311]: the parameter type `T` may not live long enough LL | async fn foo(&self) -> &(T, U); | ^^^^^^^ | -note: the parameter type `T` must be valid for the anonymous lifetime as defined here... +note: the parameter type `T` must be valid for the anonymous lifetime defined here... --> $DIR/async-generics.rs:9:18 | LL | async fn foo(&self) -> &(T, U); - | ^ + | ^^^^^ note: ...so that the reference type `&(T, U)` does not outlive the data it points at --> $DIR/async-generics.rs:9:28 | diff --git a/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.rs b/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.rs index 3f7448cecd1..d5481d277e4 100644 --- a/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.rs +++ b/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.rs @@ -1,5 +1,4 @@ -// check-fail -// known-bug: #102682 +// check-pass // edition: 2021 #![feature(async_fn_in_trait)] diff --git a/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.stderr b/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.stderr deleted file mode 100644 index 0f024202743..00000000000 --- a/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.stderr +++ /dev/null @@ -1,23 +0,0 @@ -error[E0309]: the parameter type `Self` may not live long enough - --> $DIR/async-lifetimes-and-bounds.rs:11:43 - | -LL | async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T) where T: Debug + Sized; - | ^^^^^^^^^^^^^^^^^ - | - = help: consider adding an explicit lifetime bound `Self: 'a`... - = note: ...so that the reference type `&'a Self` does not outlive the data it points at - -error[E0309]: the parameter type `T` may not live long enough - --> $DIR/async-lifetimes-and-bounds.rs:11:43 - | -LL | async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T) where T: Debug + Sized; - | ^^^^^^^^^^^^^^^^^ ...so that the reference type `&'b T` does not outlive the data it points at - | -help: consider adding an explicit lifetime bound... - | -LL | trait MyTrait<'a, 'b, T: 'b> { - | ++++ - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0309`. diff --git a/src/test/ui/async-await/in-trait/async-lifetimes.rs b/src/test/ui/async-await/in-trait/async-lifetimes.rs index acbac471cf7..f298e45d239 100644 --- a/src/test/ui/async-await/in-trait/async-lifetimes.rs +++ b/src/test/ui/async-await/in-trait/async-lifetimes.rs @@ -1,5 +1,4 @@ -// check-fail -// known-bug: #102682 +// check-pass // edition: 2021 #![feature(async_fn_in_trait)] diff --git a/src/test/ui/async-await/in-trait/async-lifetimes.stderr b/src/test/ui/async-await/in-trait/async-lifetimes.stderr deleted file mode 100644 index 9a7d294bb17..00000000000 --- a/src/test/ui/async-await/in-trait/async-lifetimes.stderr +++ /dev/null @@ -1,23 +0,0 @@ -error[E0309]: the parameter type `Self` may not live long enough - --> $DIR/async-lifetimes.rs:9:43 - | -LL | async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T); - | ^^^^^^^^^^^^^^^^^ - | - = help: consider adding an explicit lifetime bound `Self: 'a`... - = note: ...so that the reference type `&'a Self` does not outlive the data it points at - -error[E0309]: the parameter type `T` may not live long enough - --> $DIR/async-lifetimes.rs:9:43 - | -LL | async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T); - | ^^^^^^^^^^^^^^^^^ ...so that the reference type `&'b T` does not outlive the data it points at - | -help: consider adding an explicit lifetime bound... - | -LL | trait MyTrait<'a, 'b, T: 'b> { - | ++++ - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0309`. diff --git a/src/test/ui/async-await/in-trait/implied-bounds.rs b/src/test/ui/async-await/in-trait/implied-bounds.rs new file mode 100644 index 00000000000..52bceb3cc5c --- /dev/null +++ b/src/test/ui/async-await/in-trait/implied-bounds.rs @@ -0,0 +1,13 @@ +// check-pass +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +trait TcpStack { + type Connection<'a>: Sized where Self: 'a; + fn connect<'a>(&'a self) -> Self::Connection<'a>; + async fn async_connect<'a>(&'a self) -> Self::Connection<'a>; +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/lifetime-mismatch.rs b/src/test/ui/async-await/in-trait/lifetime-mismatch.rs new file mode 100644 index 00000000000..45ede193c0f --- /dev/null +++ b/src/test/ui/async-await/in-trait/lifetime-mismatch.rs @@ -0,0 +1,20 @@ +// edition:2021 + +#![feature(async_fn_in_trait)] +//~^ WARN the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes + +trait MyTrait { + async fn foo<'a>(&self); + async fn bar(&self); +} + +impl MyTrait for i32 { + async fn foo(&self) {} + //~^ ERROR lifetime parameters or bounds on method `foo` do not match the trait declaration + + async fn bar(&self) { + self.foo(); + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/lifetime-mismatch.stderr b/src/test/ui/async-await/in-trait/lifetime-mismatch.stderr new file mode 100644 index 00000000000..d87adcc78b6 --- /dev/null +++ b/src/test/ui/async-await/in-trait/lifetime-mismatch.stderr @@ -0,0 +1,21 @@ +warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/lifetime-mismatch.rs:3:12 + | +LL | #![feature(async_fn_in_trait)] + | ^^^^^^^^^^^^^^^^^ + | + = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information + = note: `#[warn(incomplete_features)]` on by default + +error[E0195]: lifetime parameters or bounds on method `foo` do not match the trait declaration + --> $DIR/lifetime-mismatch.rs:12:17 + | +LL | async fn foo<'a>(&self); + | ---- lifetimes in impl do not match this method in trait +... +LL | async fn foo(&self) {} + | ^ lifetimes do not match method in trait + +error: aborting due to previous error; 1 warning emitted + +For more information about this error, try `rustc --explain E0195`. diff --git a/src/test/ui/async-await/track-caller/issue-105134.rs b/src/test/ui/async-await/track-caller/issue-105134.rs new file mode 100644 index 00000000000..4e52b8e250b --- /dev/null +++ b/src/test/ui/async-await/track-caller/issue-105134.rs @@ -0,0 +1,11 @@ +// check-pass +// edition:2021 + +#[track_caller] +fn f() { + let _ = async {}; +} + +fn main() { + f(); +} diff --git a/src/test/ui/async-await/track-caller/panic-track-caller.rs b/src/test/ui/async-await/track-caller/panic-track-caller.rs index b113c56412f..5ebfeb3f36a 100644 --- a/src/test/ui/async-await/track-caller/panic-track-caller.rs +++ b/src/test/ui/async-await/track-caller/panic-track-caller.rs @@ -54,6 +54,19 @@ async fn foo_track_caller() { bar_track_caller().await } +struct Foo; + +impl Foo { + #[track_caller] + async fn bar_assoc() { + panic!(); + } +} + +async fn foo_assoc() { + Foo::bar_assoc().await +} + fn panicked_at(f: impl FnOnce() + panic::UnwindSafe) -> u32 { let loc = Arc::new(Mutex::new(None)); @@ -73,4 +86,5 @@ fn panicked_at(f: impl FnOnce() + panic::UnwindSafe) -> u32 { fn main() { assert_eq!(panicked_at(|| block_on(foo())), 41); assert_eq!(panicked_at(|| block_on(foo_track_caller())), 54); + assert_eq!(panicked_at(|| block_on(foo_assoc())), 67); } diff --git a/src/test/ui/attributes/unused-item-in-attr.rs b/src/test/ui/attributes/unused-item-in-attr.rs new file mode 100644 index 00000000000..70dcd5413f1 --- /dev/null +++ b/src/test/ui/attributes/unused-item-in-attr.rs @@ -0,0 +1,6 @@ +#[w = { extern crate alloc; }] +//~^ ERROR unexpected expression: `{ +//~| ERROR cannot find attribute `w` in this scope +fn f() {} + +fn main() {} diff --git a/src/test/ui/attributes/unused-item-in-attr.stderr b/src/test/ui/attributes/unused-item-in-attr.stderr new file mode 100644 index 00000000000..92a8f585821 --- /dev/null +++ b/src/test/ui/attributes/unused-item-in-attr.stderr @@ -0,0 +1,16 @@ +error: unexpected expression: `{ + extern crate alloc; + }` + --> $DIR/unused-item-in-attr.rs:1:7 + | +LL | #[w = { extern crate alloc; }] + | ^^^^^^^^^^^^^^^^^^^^^^^ + +error: cannot find attribute `w` in this scope + --> $DIR/unused-item-in-attr.rs:1:3 + | +LL | #[w = { extern crate alloc; }] + | ^ + +error: aborting due to 2 previous errors + diff --git a/src/test/ui/closures/issue-90871.rs b/src/test/ui/closures/issue-90871.rs index 9c70bbc85ac..7ce061cd388 100644 --- a/src/test/ui/closures/issue-90871.rs +++ b/src/test/ui/closures/issue-90871.rs @@ -1,5 +1,7 @@ +#![feature(type_ascription)] + fn main() { - 2: n([u8; || 1]) + type_ascribe!(2, n([u8; || 1])) //~^ ERROR cannot find type `n` in this scope //~| ERROR mismatched types } diff --git a/src/test/ui/closures/issue-90871.stderr b/src/test/ui/closures/issue-90871.stderr index 1e102cc9805..a482750fbd0 100644 --- a/src/test/ui/closures/issue-90871.stderr +++ b/src/test/ui/closures/issue-90871.stderr @@ -1,21 +1,26 @@ error[E0412]: cannot find type `n` in this scope - --> $DIR/issue-90871.rs:2:8 + --> $DIR/issue-90871.rs:4:22 | -LL | 2: n([u8; || 1]) - | ^ expecting a type here because of type ascription +LL | type_ascribe!(2, n([u8; || 1])) + | ^ help: a trait with a similar name exists: `Fn` + | + ::: $SRC_DIR/core/src/ops/function.rs:LL:COL + | +LL | pub trait Fn<Args: Tuple>: FnMut<Args> { + | -------------------------------------- similarly named trait `Fn` defined here error[E0308]: mismatched types - --> $DIR/issue-90871.rs:2:15 + --> $DIR/issue-90871.rs:4:29 | -LL | 2: n([u8; || 1]) - | ^^^^ expected `usize`, found closure +LL | type_ascribe!(2, n([u8; || 1])) + | ^^^^ expected `usize`, found closure | = note: expected type `usize` - found closure `[closure@$DIR/issue-90871.rs:2:15: 2:17]` + found closure `[closure@$DIR/issue-90871.rs:4:29: 4:31]` help: use parentheses to call this closure | -LL | 2: n([u8; (|| 1)()]) - | + +++ +LL | type_ascribe!(2, n([u8; (|| 1)()])) + | + +++ error: aborting due to 2 previous errors diff --git a/src/test/ui/coercion/coerce-expect-unsized-ascribed.rs b/src/test/ui/coercion/coerce-expect-unsized-ascribed.rs index c139e823c2a..d7b11317ad5 100644 --- a/src/test/ui/coercion/coerce-expect-unsized-ascribed.rs +++ b/src/test/ui/coercion/coerce-expect-unsized-ascribed.rs @@ -6,27 +6,27 @@ use std::fmt::Debug; pub fn main() { - let _ = box { [1, 2, 3] }: Box<[i32]>; //~ ERROR mismatched types - let _ = box if true { [1, 2, 3] } else { [1, 3, 4] }: Box<[i32]>; //~ ERROR mismatched types - let _ = box match true { true => [1, 2, 3], false => [1, 3, 4] }: Box<[i32]>; + let _ = type_ascribe!(box { [1, 2, 3] }, Box<[i32]>); //~ ERROR mismatched types + let _ = type_ascribe!(box if true { [1, 2, 3] } else { [1, 3, 4] }, Box<[i32]>); //~ ERROR mismatched types + let _ = type_ascribe!(box match true { true => [1, 2, 3], false => [1, 3, 4] }, Box<[i32]>); //~^ ERROR mismatched types - let _ = box { |x| (x as u8) }: Box<dyn Fn(i32) -> _>; //~ ERROR mismatched types - let _ = box if true { false } else { true }: Box<dyn Debug>; //~ ERROR mismatched types - let _ = box match true { true => 'a', false => 'b' }: Box<dyn Debug>; //~ ERROR mismatched types + let _ = type_ascribe!(box { |x| (x as u8) }, Box<dyn Fn(i32) -> _>); //~ ERROR mismatched types + let _ = type_ascribe!(box if true { false } else { true }, Box<dyn Debug>); //~ ERROR mismatched types + let _ = type_ascribe!(box match true { true => 'a', false => 'b' }, Box<dyn Debug>); //~ ERROR mismatched types - let _ = &{ [1, 2, 3] }: &[i32]; //~ ERROR mismatched types - let _ = &if true { [1, 2, 3] } else { [1, 3, 4] }: &[i32]; //~ ERROR mismatched types - let _ = &match true { true => [1, 2, 3], false => [1, 3, 4] }: &[i32]; + let _ = type_ascribe!(&{ [1, 2, 3] }, &[i32]); //~ ERROR mismatched types + let _ = type_ascribe!(&if true { [1, 2, 3] } else { [1, 3, 4] }, &[i32]); //~ ERROR mismatched types + let _ = type_ascribe!(&match true { true => [1, 2, 3], false => [1, 3, 4] }, &[i32]); //~^ ERROR mismatched types - let _ = &{ |x| (x as u8) }: &dyn Fn(i32) -> _; //~ ERROR mismatched types - let _ = &if true { false } else { true }: &dyn Debug; //~ ERROR mismatched types - let _ = &match true { true => 'a', false => 'b' }: &dyn Debug; //~ ERROR mismatched types + let _ = type_ascribe!(&{ |x| (x as u8) }, &dyn Fn(i32) -> _); //~ ERROR mismatched types + let _ = type_ascribe!(&if true { false } else { true }, &dyn Debug); //~ ERROR mismatched types + let _ = type_ascribe!(&match true { true => 'a', false => 'b' }, &dyn Debug); //~ ERROR mismatched types - let _ = Box::new([1, 2, 3]): Box<[i32]>; //~ ERROR mismatched types - let _ = Box::new(|x| (x as u8)): Box<dyn Fn(i32) -> _>; //~ ERROR mismatched types + let _ = type_ascribe!(Box::new([1, 2, 3]), Box<[i32]>); //~ ERROR mismatched types + let _ = type_ascribe!(Box::new(|x| (x as u8)), Box<dyn Fn(i32) -> _>); //~ ERROR mismatched types - let _ = vec![ + let _ = type_ascribe!(vec![ Box::new(|x| (x as u8)), box |x| (x as i16 as u8), - ]: Vec<Box<dyn Fn(i32) -> _>>; + ], Vec<Box<dyn Fn(i32) -> _>>); } diff --git a/src/test/ui/coercion/coerce-expect-unsized-ascribed.stderr b/src/test/ui/coercion/coerce-expect-unsized-ascribed.stderr index 9d614e610ad..44968244c4d 100644 --- a/src/test/ui/coercion/coerce-expect-unsized-ascribed.stderr +++ b/src/test/ui/coercion/coerce-expect-unsized-ascribed.stderr @@ -1,128 +1,128 @@ error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:9:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:9:27 | -LL | let _ = box { [1, 2, 3] }: Box<[i32]>; - | ^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` +LL | let _ = type_ascribe!(box { [1, 2, 3] }, Box<[i32]>); + | ^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` | = note: expected struct `Box<[i32]>` found struct `Box<[i32; 3]>` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:10:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:10:27 | -LL | let _ = box if true { [1, 2, 3] } else { [1, 3, 4] }: Box<[i32]>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` +LL | let _ = type_ascribe!(box if true { [1, 2, 3] } else { [1, 3, 4] }, Box<[i32]>); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` | = note: expected struct `Box<[i32]>` found struct `Box<[i32; 3]>` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:11:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:11:27 | -LL | let _ = box match true { true => [1, 2, 3], false => [1, 3, 4] }: Box<[i32]>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` +LL | let _ = type_ascribe!(box match true { true => [1, 2, 3], false => [1, 3, 4] }, Box<[i32]>); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` | = note: expected struct `Box<[i32]>` found struct `Box<[i32; 3]>` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:13:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:13:27 | -LL | let _ = box { |x| (x as u8) }: Box<dyn Fn(i32) -> _>; - | ^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Fn`, found closure +LL | let _ = type_ascribe!(box { |x| (x as u8) }, Box<dyn Fn(i32) -> _>); + | ^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Fn`, found closure | = note: expected struct `Box<dyn Fn(i32) -> u8>` - found struct `Box<[closure@$DIR/coerce-expect-unsized-ascribed.rs:13:19: 13:22]>` + found struct `Box<[closure@$DIR/coerce-expect-unsized-ascribed.rs:13:33: 13:36]>` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:14:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:14:27 | -LL | let _ = box if true { false } else { true }: Box<dyn Debug>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `bool` +LL | let _ = type_ascribe!(box if true { false } else { true }, Box<dyn Debug>); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `bool` | = note: expected struct `Box<dyn Debug>` found struct `Box<bool>` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:15:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:15:27 | -LL | let _ = box match true { true => 'a', false => 'b' }: Box<dyn Debug>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `char` +LL | let _ = type_ascribe!(box match true { true => 'a', false => 'b' }, Box<dyn Debug>); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `char` | = note: expected struct `Box<dyn Debug>` found struct `Box<char>` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:17:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:17:27 | -LL | let _ = &{ [1, 2, 3] }: &[i32]; - | ^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` +LL | let _ = type_ascribe!(&{ [1, 2, 3] }, &[i32]); + | ^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` | = note: expected reference `&[i32]` found reference `&[i32; 3]` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:18:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:18:27 | -LL | let _ = &if true { [1, 2, 3] } else { [1, 3, 4] }: &[i32]; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` +LL | let _ = type_ascribe!(&if true { [1, 2, 3] } else { [1, 3, 4] }, &[i32]); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` | = note: expected reference `&[i32]` found reference `&[i32; 3]` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:19:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:19:27 | -LL | let _ = &match true { true => [1, 2, 3], false => [1, 3, 4] }: &[i32]; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` +LL | let _ = type_ascribe!(&match true { true => [1, 2, 3], false => [1, 3, 4] }, &[i32]); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` | = note: expected reference `&[i32]` found reference `&[i32; 3]` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:21:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:21:27 | -LL | let _ = &{ |x| (x as u8) }: &dyn Fn(i32) -> _; - | ^^^^^^^^^^^^^^^^^^ expected trait object `dyn Fn`, found closure +LL | let _ = type_ascribe!(&{ |x| (x as u8) }, &dyn Fn(i32) -> _); + | ^^^^^^^^^^^^^^^^^^ expected trait object `dyn Fn`, found closure | = note: expected reference `&dyn Fn(i32) -> u8` - found reference `&[closure@$DIR/coerce-expect-unsized-ascribed.rs:21:16: 21:19]` + found reference `&[closure@$DIR/coerce-expect-unsized-ascribed.rs:21:30: 21:33]` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:22:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:22:27 | -LL | let _ = &if true { false } else { true }: &dyn Debug; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `bool` +LL | let _ = type_ascribe!(&if true { false } else { true }, &dyn Debug); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `bool` | = note: expected reference `&dyn Debug` found reference `&bool` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:23:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:23:27 | -LL | let _ = &match true { true => 'a', false => 'b' }: &dyn Debug; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `char` +LL | let _ = type_ascribe!(&match true { true => 'a', false => 'b' }, &dyn Debug); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Debug`, found `char` | = note: expected reference `&dyn Debug` found reference `&char` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:25:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:25:27 | -LL | let _ = Box::new([1, 2, 3]): Box<[i32]>; - | ^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` +LL | let _ = type_ascribe!(Box::new([1, 2, 3]), Box<[i32]>); + | ^^^^^^^^^^^^^^^^^^^ expected slice `[i32]`, found array `[i32; 3]` | = note: expected struct `Box<[i32]>` found struct `Box<[i32; 3]>` error[E0308]: mismatched types - --> $DIR/coerce-expect-unsized-ascribed.rs:26:13 + --> $DIR/coerce-expect-unsized-ascribed.rs:26:27 | -LL | let _ = Box::new(|x| (x as u8)): Box<dyn Fn(i32) -> _>; - | ^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Fn`, found closure +LL | let _ = type_ascribe!(Box::new(|x| (x as u8)), Box<dyn Fn(i32) -> _>); + | ^^^^^^^^^^^^^^^^^^^^^^^ expected trait object `dyn Fn`, found closure | = note: expected struct `Box<dyn Fn(i32) -> u8>` - found struct `Box<[closure@$DIR/coerce-expect-unsized-ascribed.rs:26:22: 26:25]>` + found struct `Box<[closure@$DIR/coerce-expect-unsized-ascribed.rs:26:36: 26:39]>` error: aborting due to 14 previous errors diff --git a/src/test/ui/const-generics/defaults/self-referential.rs b/src/test/ui/const-generics/defaults/self-referential.rs new file mode 100644 index 00000000000..14a870dc39b --- /dev/null +++ b/src/test/ui/const-generics/defaults/self-referential.rs @@ -0,0 +1,4 @@ +trait Foo<const M: u8, const M: u8 = M> {} +//~^ ERROR the name `M` is already used for a generic parameter in this item's generic parameters +impl Foo<2> for () {} +fn main() {} diff --git a/src/test/ui/const-generics/defaults/self-referential.stderr b/src/test/ui/const-generics/defaults/self-referential.stderr new file mode 100644 index 00000000000..170c1f7f7b2 --- /dev/null +++ b/src/test/ui/const-generics/defaults/self-referential.stderr @@ -0,0 +1,11 @@ +error[E0403]: the name `M` is already used for a generic parameter in this item's generic parameters + --> $DIR/self-referential.rs:1:30 + | +LL | trait Foo<const M: u8, const M: u8 = M> {} + | - ^ already used + | | + | first use of `M` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0403`. diff --git a/src/test/ui/consts/const_in_pattern/accept_structural.rs b/src/test/ui/consts/const_in_pattern/accept_structural.rs index 5093fe53915..1f56f581c02 100644 --- a/src/test/ui/consts/const_in_pattern/accept_structural.rs +++ b/src/test/ui/consts/const_in_pattern/accept_structural.rs @@ -45,7 +45,7 @@ fn main() { const TUPLE: (OND, OND) = (None, None); match (None, None) { TUPLE => dbg!(TUPLE), _ => panic!("whoops"), }; - const TYPE_ASCRIPTION: OND = None: OND; + const TYPE_ASCRIPTION: OND = type_ascribe!(None, OND); match None { TYPE_ASCRIPTION => dbg!(TYPE_ASCRIPTION), _ => panic!("whoops"), }; const ARRAY: [OND; 2] = [None, None]; diff --git a/src/test/ui/consts/const_in_pattern/reject_non_structural.rs b/src/test/ui/consts/const_in_pattern/reject_non_structural.rs index 7a8169bec45..75fde0d92de 100644 --- a/src/test/ui/consts/const_in_pattern/reject_non_structural.rs +++ b/src/test/ui/consts/const_in_pattern/reject_non_structural.rs @@ -53,7 +53,7 @@ fn main() { match (None, Some(NoDerive)) { TUPLE => dbg!(TUPLE), _ => panic!("whoops"), }; //~^ ERROR must be annotated with `#[derive(PartialEq, Eq)]` - const TYPE_ASCRIPTION: OND = Some(NoDerive): OND; + const TYPE_ASCRIPTION: OND = type_ascribe!(Some(NoDerive), OND); match Some(NoDerive) { TYPE_ASCRIPTION => dbg!(TYPE_ASCRIPTION), _ => panic!("whoops"), }; //~^ ERROR must be annotated with `#[derive(PartialEq, Eq)]` diff --git a/src/test/ui/consts/miri_unleashed/tls.stderr b/src/test/ui/consts/miri_unleashed/tls.stderr index 436c5112360..7aaeadd0403 100644 --- a/src/test/ui/consts/miri_unleashed/tls.stderr +++ b/src/test/ui/consts/miri_unleashed/tls.stderr @@ -2,13 +2,13 @@ error[E0080]: could not evaluate static initializer --> $DIR/tls.rs:11:25 | LL | unsafe { let _val = A; } - | ^ cannot access thread local static (DefId(0:6 ~ tls[78b0]::A)) + | ^ cannot access thread local static (DefId(0:4 ~ tls[78b0]::A)) error[E0080]: could not evaluate static initializer --> $DIR/tls.rs:18:26 | LL | unsafe { let _val = &A; } - | ^ cannot access thread local static (DefId(0:6 ~ tls[78b0]::A)) + | ^ cannot access thread local static (DefId(0:4 ~ tls[78b0]::A)) warning: skipping const checks | diff --git a/src/test/ui/deriving/issue-105101.rs b/src/test/ui/deriving/issue-105101.rs new file mode 100644 index 00000000000..1a377feb919 --- /dev/null +++ b/src/test/ui/deriving/issue-105101.rs @@ -0,0 +1,9 @@ +// compile-flags: --crate-type=lib + +#[derive(Default)] //~ ERROR multiple declared defaults +enum E { + #[default] + A, + #[default] + A, //~ ERROR defined multiple times +} diff --git a/src/test/ui/deriving/issue-105101.stderr b/src/test/ui/deriving/issue-105101.stderr new file mode 100644 index 00000000000..0f6f67043f3 --- /dev/null +++ b/src/test/ui/deriving/issue-105101.stderr @@ -0,0 +1,29 @@ +error: multiple declared defaults + --> $DIR/issue-105101.rs:3:10 + | +LL | #[derive(Default)] + | ^^^^^^^ +... +LL | A, + | - first default +LL | #[default] +LL | A, + | - additional default + | + = note: only one variant can be default + = note: this error originates in the derive macro `Default` (in Nightly builds, run with -Z macro-backtrace for more info) + +error[E0428]: the name `A` is defined multiple times + --> $DIR/issue-105101.rs:8:5 + | +LL | A, + | - previous definition of the type `A` here +LL | #[default] +LL | A, + | ^ `A` redefined here + | + = note: `A` must be defined only once in the type namespace of this enum + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0428`. diff --git a/src/test/ui/drop/drop_order.rs b/src/test/ui/drop/drop_order.rs index 42385216ae7..5ce1fd54a9e 100644 --- a/src/test/ui/drop/drop_order.rs +++ b/src/test/ui/drop/drop_order.rs @@ -43,7 +43,7 @@ impl DropOrderCollector { } if { - if self.option_loud_drop(7).is_some() && self.option_loud_drop(6).is_some() { + if self.option_loud_drop(6).is_some() && self.option_loud_drop(7).is_some() { self.loud_drop(8); true } else { @@ -118,17 +118,85 @@ impl DropOrderCollector { } } + fn and_chain(&self) { + // issue-103107 + if self.option_loud_drop(1).is_some() // 1 + && self.option_loud_drop(2).is_some() // 2 + && self.option_loud_drop(3).is_some() // 3 + && self.option_loud_drop(4).is_some() // 4 + && self.option_loud_drop(5).is_some() // 5 + { + self.print(6); // 6 + } + + let _ = self.option_loud_drop(7).is_some() // 1 + && self.option_loud_drop(8).is_some() // 2 + && self.option_loud_drop(9).is_some(); // 3 + self.print(10); // 4 + + // Test associativity + if self.option_loud_drop(11).is_some() // 1 + && (self.option_loud_drop(12).is_some() // 2 + && self.option_loud_drop(13).is_some() // 3 + && self.option_loud_drop(14).is_some()) // 4 + && self.option_loud_drop(15).is_some() // 5 + { + self.print(16); // 6 + } + } + + fn or_chain(&self) { + // issue-103107 + if self.option_loud_drop(1).is_none() // 1 + || self.option_loud_drop(2).is_none() // 2 + || self.option_loud_drop(3).is_none() // 3 + || self.option_loud_drop(4).is_none() // 4 + || self.option_loud_drop(5).is_some() // 5 + { + self.print(6); // 6 + } + + let _ = self.option_loud_drop(7).is_none() // 1 + || self.option_loud_drop(8).is_none() // 2 + || self.option_loud_drop(9).is_none(); // 3 + self.print(10); // 4 + + // Test associativity + if self.option_loud_drop(11).is_none() // 1 + || (self.option_loud_drop(12).is_none() // 2 + || self.option_loud_drop(13).is_none() // 3 + || self.option_loud_drop(14).is_none()) // 4 + || self.option_loud_drop(15).is_some() // 5 + { + self.print(16); // 6 + } + } + + fn mixed_and_or_chain(&self) { + // issue-103107 + if self.option_loud_drop(1).is_none() // 1 + || self.option_loud_drop(2).is_none() // 2 + || self.option_loud_drop(3).is_some() // 3 + && self.option_loud_drop(4).is_some() // 4 + && self.option_loud_drop(5).is_none() // 5 + || self.option_loud_drop(6).is_none() // 6 + || self.option_loud_drop(7).is_some() // 7 + { + self.print(8); // 8 + } + } + fn let_chain(&self) { // take the "then" branch - if self.option_loud_drop(2).is_some() // 2 - && self.option_loud_drop(1).is_some() // 1 + if self.option_loud_drop(1).is_some() // 1 + && self.option_loud_drop(2).is_some() // 2 && let Some(_d) = self.option_loud_drop(4) { // 4 self.print(3); // 3 } // take the "else" branch - if self.option_loud_drop(6).is_some() // 2 - && self.option_loud_drop(5).is_some() // 1 + if self.option_loud_drop(5).is_some() // 1 + && self.option_loud_drop(6).is_some() // 2 && let None = self.option_loud_drop(8) { // 4 unreachable!(); } else { @@ -152,8 +220,8 @@ impl DropOrderCollector { } // let exprs last - if self.option_loud_drop(20).is_some() // 2 - && self.option_loud_drop(19).is_some() // 1 + if self.option_loud_drop(19).is_some() // 1 + && self.option_loud_drop(20).is_some() // 2 && let Some(_d) = self.option_loud_drop(23) // 5 && let Some(_e) = self.option_loud_drop(22) { // 4 self.print(21); // 3 @@ -187,6 +255,21 @@ fn main() { collector.if_(); collector.assert_sorted(); + println!("-- and chain --"); + let collector = DropOrderCollector::default(); + collector.and_chain(); + collector.assert_sorted(); + + println!("-- or chain --"); + let collector = DropOrderCollector::default(); + collector.or_chain(); + collector.assert_sorted(); + + println!("-- mixed and/or chain --"); + let collector = DropOrderCollector::default(); + collector.mixed_and_or_chain(); + collector.assert_sorted(); + println!("-- if let --"); let collector = DropOrderCollector::default(); collector.if_let(); diff --git a/src/test/ui/drop/issue-103107.rs b/src/test/ui/drop/issue-103107.rs new file mode 100644 index 00000000000..5f447595662 --- /dev/null +++ b/src/test/ui/drop/issue-103107.rs @@ -0,0 +1,37 @@ +// check-pass +// compile-flags: -Z validate-mir + +struct Foo<'a>(&'a mut u32); + +impl<'a> Drop for Foo<'a> { + fn drop(&mut self) { + *self.0 = 0; + } +} + +fn and() { + let mut foo = 0; + // This used to compile also before the fix + if true && *Foo(&mut foo).0 == 0 && ({ foo = 0; true}) {} + + // This used to fail before the fix + if *Foo(&mut foo).0 == 0 && ({ foo = 0; true}) {} + + println!("{foo}"); +} + +fn or() { + let mut foo = 0; + // This used to compile also before the fix + if false || *Foo(&mut foo).0 == 1 || ({ foo = 0; true}) {} + + // This used to fail before the fix + if *Foo(&mut foo).0 == 1 || ({ foo = 0; true}) {} + + println!("{foo}"); +} + +fn main() { + and(); + or(); +} diff --git a/src/test/ui/duplicate/duplicate-type-parameter.stderr b/src/test/ui/duplicate/duplicate-type-parameter.stderr index 6754574f0b9..628f898d5c8 100644 --- a/src/test/ui/duplicate/duplicate-type-parameter.stderr +++ b/src/test/ui/duplicate/duplicate-type-parameter.stderr @@ -55,10 +55,10 @@ LL | impl<T,T> Qux<T,T> for Option<T> {} | first use of `T` error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates - --> $DIR/duplicate-type-parameter.rs:24:6 + --> $DIR/duplicate-type-parameter.rs:24:8 | LL | impl<T,T> Qux<T,T> for Option<T> {} - | ^ unconstrained type parameter + | ^ unconstrained type parameter error: aborting due to 8 previous errors diff --git a/src/test/ui/enum-discriminant/issue-104519.rs b/src/test/ui/enum-discriminant/issue-104519.rs new file mode 100644 index 00000000000..c4630f76b3a --- /dev/null +++ b/src/test/ui/enum-discriminant/issue-104519.rs @@ -0,0 +1,36 @@ +// run-pass +#![allow(dead_code)] + +enum OpenResult { + Ok(()), + Err(()), + TransportErr(TransportErr), +} + +#[repr(i32)] +enum TransportErr { + UnknownMethod = -2, +} + +#[inline(never)] +fn some_match(result: OpenResult) -> u8 { + match result { + OpenResult::Ok(()) => 0, + _ => 1, + } +} + +fn main() { + let result = OpenResult::Ok(()); + assert_eq!(some_match(result), 0); + + let result = OpenResult::Ok(()); + match result { + OpenResult::Ok(()) => (), + _ => unreachable!("message a"), + } + match result { + OpenResult::Ok(()) => (), + _ => unreachable!("message b"), + } +} diff --git a/src/test/ui/enum/issue-67945-2.rs b/src/test/ui/enum/issue-67945-2.rs index e5044468da1..2eb123b7328 100644 --- a/src/test/ui/enum/issue-67945-2.rs +++ b/src/test/ui/enum/issue-67945-2.rs @@ -1,7 +1,7 @@ #![feature(type_ascription)] enum Bug<S> { //~ ERROR parameter `S` is never used - Var = 0: S, + Var = type_ascribe!(0, S), //~^ ERROR generic parameters may not be used } diff --git a/src/test/ui/enum/issue-67945-2.stderr b/src/test/ui/enum/issue-67945-2.stderr index 4f5e236a37b..63d3521afe4 100644 --- a/src/test/ui/enum/issue-67945-2.stderr +++ b/src/test/ui/enum/issue-67945-2.stderr @@ -1,8 +1,8 @@ error: generic parameters may not be used in const operations - --> $DIR/issue-67945-2.rs:4:14 + --> $DIR/issue-67945-2.rs:4:28 | -LL | Var = 0: S, - | ^ cannot perform const operation using `S` +LL | Var = type_ascribe!(0, S), + | ^ cannot perform const operation using `S` | = note: type parameters may not be used in const expressions = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions diff --git a/src/test/ui/fn/signature-error-reporting-under-verbose.rs b/src/test/ui/fn/signature-error-reporting-under-verbose.rs new file mode 100644 index 00000000000..d7a8c95e8b2 --- /dev/null +++ b/src/test/ui/fn/signature-error-reporting-under-verbose.rs @@ -0,0 +1,15 @@ +// compile-flags: -Zverbose + +fn foo(_: i32, _: i32) {} + +fn needs_ptr(_: fn(i32, u32)) {} +//~^ NOTE function defined here +//~| NOTE + +fn main() { + needs_ptr(foo); + //~^ ERROR mismatched types + //~| NOTE expected `u32`, found `i32` + //~| NOTE expected fn pointer `fn(i32, u32)` + //~| NOTE arguments to this function are incorrect +} diff --git a/src/test/ui/fn/signature-error-reporting-under-verbose.stderr b/src/test/ui/fn/signature-error-reporting-under-verbose.stderr new file mode 100644 index 00000000000..6260fc8dcec --- /dev/null +++ b/src/test/ui/fn/signature-error-reporting-under-verbose.stderr @@ -0,0 +1,19 @@ +error[E0308]: mismatched types + --> $DIR/signature-error-reporting-under-verbose.rs:10:15 + | +LL | needs_ptr(foo); + | --------- ^^^ expected `u32`, found `i32` + | | + | arguments to this function are incorrect + | + = note: expected fn pointer `fn(i32, u32)` + found fn item `fn(i32, i32) {foo}` +note: function defined here + --> $DIR/signature-error-reporting-under-verbose.rs:5:4 + | +LL | fn needs_ptr(_: fn(i32, u32)) {} + | ^^^^^^^^^ --------------- + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/generator/print/generator-print-verbose-1.stderr b/src/test/ui/generator/print/generator-print-verbose-1.stderr index 2e020780480..ed0628bbbc3 100644 --- a/src/test/ui/generator/print/generator-print-verbose-1.stderr +++ b/src/test/ui/generator/print/generator-print-verbose-1.stderr @@ -9,7 +9,7 @@ note: generator is not `Send` as this value is used across a yield --> $DIR/generator-print-verbose-1.rs:35:9 | LL | let _non_send_gen = make_non_send_generator(); - | ------------- has type `Opaque(DefId(0:44 ~ generator_print_verbose_1[749a]::make_non_send_generator::{opaque#0}), [])` which is not `Send` + | ------------- has type `Opaque(DefId(0:34 ~ generator_print_verbose_1[749a]::make_non_send_generator::{opaque#0}), [])` which is not `Send` LL | yield; | ^^^^^ yield occurs here, with `_non_send_gen` maybe used later LL | }; @@ -35,17 +35,17 @@ note: required because it's used within this generator | LL | || { | ^^ -note: required because it appears within the type `Opaque(DefId(0:45 ~ generator_print_verbose_1[749a]::make_gen2::{opaque#0}), [std::sync::Arc<std::cell::RefCell<i32>>])` +note: required because it appears within the type `Opaque(DefId(0:35 ~ generator_print_verbose_1[749a]::make_gen2::{opaque#0}), [std::sync::Arc<std::cell::RefCell<i32>>])` --> $DIR/generator-print-verbose-1.rs:41:30 | LL | pub fn make_gen2<T>(t: T) -> impl Generator<Return = T> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: required because it appears within the type `Opaque(DefId(0:46 ~ generator_print_verbose_1[749a]::make_non_send_generator2::{opaque#0}), [])` +note: required because it appears within the type `Opaque(DefId(0:36 ~ generator_print_verbose_1[749a]::make_non_send_generator2::{opaque#0}), [])` --> $DIR/generator-print-verbose-1.rs:47:34 | LL | fn make_non_send_generator2() -> impl Generator<Return = Arc<RefCell<i32>>> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: required because it captures the following types: `Opaque(DefId(0:46 ~ generator_print_verbose_1[749a]::make_non_send_generator2::{opaque#0}), [])`, `()` + = note: required because it captures the following types: `Opaque(DefId(0:36 ~ generator_print_verbose_1[749a]::make_non_send_generator2::{opaque#0}), [])`, `()` note: required because it's used within this generator --> $DIR/generator-print-verbose-1.rs:52:20 | diff --git a/src/test/ui/generic-associated-types/self-outlives-lint.stderr b/src/test/ui/generic-associated-types/self-outlives-lint.stderr index 58172bf06b5..9e9b2e18abe 100644 --- a/src/test/ui/generic-associated-types/self-outlives-lint.stderr +++ b/src/test/ui/generic-associated-types/self-outlives-lint.stderr @@ -108,17 +108,6 @@ LL | type Bar<'b>; = note: this bound is currently required to ensure that impls have maximum flexibility = note: we are soliciting feedback, see issue #87479 <https://github.com/rust-lang/rust/issues/87479> for more information -error: missing required bound on `Item` - --> $DIR/self-outlives-lint.rs:140:5 - | -LL | type Item<'a>; - | ^^^^^^^^^^^^^- - | | - | help: add the required where clause: `where Self: 'a` - | - = note: this bound is currently required to ensure that impls have maximum flexibility - = note: we are soliciting feedback, see issue #87479 <https://github.com/rust-lang/rust/issues/87479> for more information - error: missing required bound on `Iterator` --> $DIR/self-outlives-lint.rs:142:5 | @@ -131,6 +120,17 @@ LL | type Iterator<'a>: Iterator<Item = Self::Item<'a>>; = note: we are soliciting feedback, see issue #87479 <https://github.com/rust-lang/rust/issues/87479> for more information error: missing required bound on `Item` + --> $DIR/self-outlives-lint.rs:140:5 + | +LL | type Item<'a>; + | ^^^^^^^^^^^^^- + | | + | help: add the required where clause: `where Self: 'a` + | + = note: this bound is currently required to ensure that impls have maximum flexibility + = note: we are soliciting feedback, see issue #87479 <https://github.com/rust-lang/rust/issues/87479> for more information + +error: missing required bound on `Item` --> $DIR/self-outlives-lint.rs:148:5 | LL | type Item<'a>; diff --git a/src/test/ui/impl-trait/in-trait/where-clause.rs b/src/test/ui/impl-trait/in-trait/where-clause.rs new file mode 100644 index 00000000000..87bac519cf3 --- /dev/null +++ b/src/test/ui/impl-trait/in-trait/where-clause.rs @@ -0,0 +1,24 @@ +// check-pass +// edition: 2021 + +#![feature(return_position_impl_trait_in_trait)] +#![allow(incomplete_features)] + +use std::fmt::Debug; + +trait Foo<Item> { + fn foo<'a>(&'a self) -> impl Debug + where + Item: 'a; +} + +impl<Item, D: Debug + Clone> Foo<Item> for D { + fn foo<'a>(&'a self) -> impl Debug + where + Item: 'a, + { + self.clone() + } +} + +fn main() {} diff --git a/src/test/ui/inline-const/expr-with-block-err.rs b/src/test/ui/inline-const/expr-with-block-err.rs new file mode 100644 index 00000000000..f7547742ddc --- /dev/null +++ b/src/test/ui/inline-const/expr-with-block-err.rs @@ -0,0 +1,6 @@ +#![feature(inline_const)] + +fn main() { + const { 2 } - const { 1 }; + //~^ ERROR mismatched types +} diff --git a/src/test/ui/inline-const/expr-with-block-err.stderr b/src/test/ui/inline-const/expr-with-block-err.stderr new file mode 100644 index 00000000000..6f7408f4e2a --- /dev/null +++ b/src/test/ui/inline-const/expr-with-block-err.stderr @@ -0,0 +1,9 @@ +error[E0308]: mismatched types + --> $DIR/expr-with-block-err.rs:4:13 + | +LL | const { 2 } - const { 1 }; + | ^ expected `()`, found integer + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/inline-const/expr-with-block.rs b/src/test/ui/inline-const/expr-with-block.rs new file mode 100644 index 00000000000..391872476fc --- /dev/null +++ b/src/test/ui/inline-const/expr-with-block.rs @@ -0,0 +1,10 @@ +// check-pass +#![feature(inline_const)] +fn main() { + match true { + true => const {} + false => () + } + const {} + () +} diff --git a/src/test/ui/issues/issue-35976.rs b/src/test/ui/issues/issue-35976.rs index d075794d994..aa6f74cb5d4 100644 --- a/src/test/ui/issues/issue-35976.rs +++ b/src/test/ui/issues/issue-35976.rs @@ -1,5 +1,9 @@ +// revisions: imported unimported +//[imported] check-pass + mod private { pub trait Future { + //[unimported]~^^ HELP perhaps add a `use` for it fn wait(&self) where Self: Sized; } @@ -8,13 +12,13 @@ mod private { } } -//use private::Future; +#[cfg(imported)] +use private::Future; fn bar(arg: Box<dyn private::Future>) { + // Importing the trait means that we don't autoderef `Box<dyn Future>` arg.wait(); - //~^ ERROR the `wait` method cannot be invoked on a trait object + //[unimported]~^ ERROR the `wait` method cannot be invoked on a trait object } -fn main() { - -} +fn main() {} diff --git a/src/test/ui/issues/issue-35976.stderr b/src/test/ui/issues/issue-35976.unimported.stderr index fe16f97b9d0..5d61bb8ea37 100644 --- a/src/test/ui/issues/issue-35976.stderr +++ b/src/test/ui/issues/issue-35976.unimported.stderr @@ -1,11 +1,16 @@ error: the `wait` method cannot be invoked on a trait object - --> $DIR/issue-35976.rs:14:9 + --> $DIR/issue-35976.rs:20:9 | LL | fn wait(&self) where Self: Sized; | ----- this has a `Sized` requirement ... LL | arg.wait(); | ^^^^ + | +help: another candidate was found in the following trait, perhaps add a `use` for it: + | +LL | use private::Future; + | error: aborting due to previous error diff --git a/src/test/ui/lint/issue-97094.nointerleaved.stderr b/src/test/ui/lint/issue-97094.nointerleaved.stderr deleted file mode 100644 index a2581658920..00000000000 --- a/src/test/ui/lint/issue-97094.nointerleaved.stderr +++ /dev/null @@ -1,53 +0,0 @@ -error: unknown lint: `nonex_lint_top_level` - --> $DIR/issue-97094.rs:14:26 - | -LL | #![cfg_attr(all(), allow(nonex_lint_top_level))] - | ^^^^^^^^^^^^^^^^^^^^ - | -note: the lint level is defined here - --> $DIR/issue-97094.rs:10:9 - | -LL | #![deny(warnings)] - | ^^^^^^^^ - = note: `#[deny(unknown_lints)]` implied by `#[deny(warnings)]` - -error: lint `bare_trait_object` has been renamed to `bare_trait_objects` - --> $DIR/issue-97094.rs:16:26 - | -LL | #![cfg_attr(all(), allow(bare_trait_object))] - | ^^^^^^^^^^^^^^^^^ help: use the new name: `bare_trait_objects` - | - = note: `#[deny(renamed_and_removed_lints)]` implied by `#[deny(warnings)]` - -error: unknown lint: `nonex_lint_mod` - --> $DIR/issue-97094.rs:19:25 - | -LL | #[cfg_attr(all(), allow(nonex_lint_mod))] - | ^^^^^^^^^^^^^^ - -error: unknown lint: `nonex_lint_mod_inner` - --> $DIR/issue-97094.rs:22:30 - | -LL | #![cfg_attr(all(), allow(nonex_lint_mod_inner))] - | ^^^^^^^^^^^^^^^^^^^^ - -error: unknown lint: `nonex_lint_fn` - --> $DIR/issue-97094.rs:26:25 - | -LL | #[cfg_attr(all(), allow(nonex_lint_fn))] - | ^^^^^^^^^^^^^ - -error: unknown lint: `nonex_lint_in_macro` - --> $DIR/issue-97094.rs:37:29 - | -LL | #[cfg_attr(all(), allow(nonex_lint_in_macro))] - | ^^^^^^^^^^^^^^^^^^^ - -error: unknown lint: `nonex_lint_fn` - --> $DIR/issue-97094.rs:56:13 - | -LL | #[allow(nonex_lint_fn)] - | ^^^^^^^^^^^^^ - -error: aborting due to 7 previous errors - diff --git a/src/test/ui/lint/issue-97094.rs b/src/test/ui/lint/issue-97094.rs index aeaead1bd11..22525ca11ae 100644 --- a/src/test/ui/lint/issue-97094.rs +++ b/src/test/ui/lint/issue-97094.rs @@ -1,12 +1,3 @@ -// revisions: interleaved nointerleaved -// [nointerleaved]compile-flags: -Z no-interleave-lints - -// This test has two revisions because the logic change -// needed to make this test pass had to be adjusted -// for no-interleave-lints. Should the debug option -// be removed one day, please don't remove this -// test entirely, just remove the revision from it. - #![deny(warnings)] // Ensure that unknown lints inside cfg-attr's are linted for diff --git a/src/test/ui/lint/issue-97094.interleaved.stderr b/src/test/ui/lint/issue-97094.stderr index a2581658920..1a0a3eaf250 100644 --- a/src/test/ui/lint/issue-97094.interleaved.stderr +++ b/src/test/ui/lint/issue-97094.stderr @@ -1,18 +1,18 @@ error: unknown lint: `nonex_lint_top_level` - --> $DIR/issue-97094.rs:14:26 + --> $DIR/issue-97094.rs:5:26 | LL | #![cfg_attr(all(), allow(nonex_lint_top_level))] | ^^^^^^^^^^^^^^^^^^^^ | note: the lint level is defined here - --> $DIR/issue-97094.rs:10:9 + --> $DIR/issue-97094.rs:1:9 | LL | #![deny(warnings)] | ^^^^^^^^ = note: `#[deny(unknown_lints)]` implied by `#[deny(warnings)]` error: lint `bare_trait_object` has been renamed to `bare_trait_objects` - --> $DIR/issue-97094.rs:16:26 + --> $DIR/issue-97094.rs:7:26 | LL | #![cfg_attr(all(), allow(bare_trait_object))] | ^^^^^^^^^^^^^^^^^ help: use the new name: `bare_trait_objects` @@ -20,31 +20,31 @@ LL | #![cfg_attr(all(), allow(bare_trait_object))] = note: `#[deny(renamed_and_removed_lints)]` implied by `#[deny(warnings)]` error: unknown lint: `nonex_lint_mod` - --> $DIR/issue-97094.rs:19:25 + --> $DIR/issue-97094.rs:10:25 | LL | #[cfg_attr(all(), allow(nonex_lint_mod))] | ^^^^^^^^^^^^^^ error: unknown lint: `nonex_lint_mod_inner` - --> $DIR/issue-97094.rs:22:30 + --> $DIR/issue-97094.rs:13:30 | LL | #![cfg_attr(all(), allow(nonex_lint_mod_inner))] | ^^^^^^^^^^^^^^^^^^^^ error: unknown lint: `nonex_lint_fn` - --> $DIR/issue-97094.rs:26:25 + --> $DIR/issue-97094.rs:17:25 | LL | #[cfg_attr(all(), allow(nonex_lint_fn))] | ^^^^^^^^^^^^^ error: unknown lint: `nonex_lint_in_macro` - --> $DIR/issue-97094.rs:37:29 + --> $DIR/issue-97094.rs:28:29 | LL | #[cfg_attr(all(), allow(nonex_lint_in_macro))] | ^^^^^^^^^^^^^^^^^^^ error: unknown lint: `nonex_lint_fn` - --> $DIR/issue-97094.rs:56:13 + --> $DIR/issue-97094.rs:47:13 | LL | #[allow(nonex_lint_fn)] | ^^^^^^^^^^^^^ diff --git a/src/test/ui/lint/unused/issue-88519-unused-paren.rs b/src/test/ui/lint/unused/issue-88519-unused-paren.rs index be02fcd3f00..ce3d15ac183 100644 --- a/src/test/ui/lint/unused/issue-88519-unused-paren.rs +++ b/src/test/ui/lint/unused/issue-88519-unused-paren.rs @@ -51,22 +51,13 @@ mod casts { mod typeascription { fn outside() -> u8 { - ({ 0 }): u8 - } - fn inside() -> u8 { - ({ 0 }: u8) + type_ascribe!(({ 0 }), u8) } fn outside_match() -> u8 { - (match 0 { x => x }): u8 - } - fn inside_match() -> u8 { - (match 0 { x => x }: u8) + type_ascribe!((match 0 { x => x }), u8) } fn outside_if() -> u8 { - (if false { 0 } else { 0 }): u8 - } - fn inside_if() -> u8 { - (if false { 0 } else { 0 }: u8) + type_ascribe!((if false { 0 } else { 0 }), u8) } } diff --git a/src/test/ui/macros/issue-103529.rs b/src/test/ui/macros/issue-103529.rs new file mode 100644 index 00000000000..fa05baed7fc --- /dev/null +++ b/src/test/ui/macros/issue-103529.rs @@ -0,0 +1,13 @@ +macro_rules! m { + ($s:stmt) => {} +} + +m! { mut x } +//~^ ERROR expected expression, found keyword `mut` +//~| ERROR expected a statement +m! { auto x } +//~^ ERROR invalid variable declaration +m! { var x } +//~^ ERROR invalid variable declaration + +fn main() {} diff --git a/src/test/ui/macros/issue-103529.stderr b/src/test/ui/macros/issue-103529.stderr new file mode 100644 index 00000000000..61e322afc77 --- /dev/null +++ b/src/test/ui/macros/issue-103529.stderr @@ -0,0 +1,39 @@ +error: expected expression, found keyword `mut` + --> $DIR/issue-103529.rs:5:6 + | +LL | m! { mut x } + | ^^^ expected expression + +error: expected a statement + --> $DIR/issue-103529.rs:5:10 + | +LL | ($s:stmt) => {} + | ------- while parsing argument for this `stmt` macro fragment +... +LL | m! { mut x } + | ^ + +error: invalid variable declaration + --> $DIR/issue-103529.rs:8:6 + | +LL | m! { auto x } + | ^^^^ + | +help: write `let` instead of `auto` to introduce a new variable + | +LL | m! { let x } + | ~~~ + +error: invalid variable declaration + --> $DIR/issue-103529.rs:10:6 + | +LL | m! { var x } + | ^^^ + | +help: write `let` instead of `var` to introduce a new variable + | +LL | m! { let x } + | ~~~ + +error: aborting due to 4 previous errors + diff --git a/src/test/ui/macros/issue-105011.rs b/src/test/ui/macros/issue-105011.rs new file mode 100644 index 00000000000..da12c381464 --- /dev/null +++ b/src/test/ui/macros/issue-105011.rs @@ -0,0 +1,3 @@ +fn main() { + println!(""y); //~ ERROR suffixes on string literals are invalid +} diff --git a/src/test/ui/macros/issue-105011.stderr b/src/test/ui/macros/issue-105011.stderr new file mode 100644 index 00000000000..e898af7faa3 --- /dev/null +++ b/src/test/ui/macros/issue-105011.stderr @@ -0,0 +1,8 @@ +error: suffixes on string literals are invalid + --> $DIR/issue-105011.rs:2:14 + | +LL | println!(""y); + | ^^^ invalid suffix `y` + +error: aborting due to previous error + diff --git a/src/test/ui/mir/mir_ascription_coercion.rs b/src/test/ui/mir/mir_ascription_coercion.rs index 0ebd20e97d7..9e04d601987 100644 --- a/src/test/ui/mir/mir_ascription_coercion.rs +++ b/src/test/ui/mir/mir_ascription_coercion.rs @@ -6,5 +6,5 @@ fn main() { let x = [1, 2, 3]; // The RHS should coerce to &[i32] - let _y : &[i32] = &x : &[i32; 3]; + let _y : &[i32] = type_ascribe!(&x, &[i32; 3]); } diff --git a/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs b/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs index 9b3ec702c75..95c655654ea 100644 --- a/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs +++ b/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs @@ -8,17 +8,17 @@ type PairCoupledTypes<T> = (T, T); type PairCoupledRegions<'a, T> = (&'a T, &'a T); fn uncoupled_wilds_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { - let ((y, _z),) = ((s, _x),): (PairUncoupled<_>,); + let ((y, _z),) = type_ascribe!(((s, _x),), (PairUncoupled<_>,)); y // OK } fn coupled_wilds_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { - let ((y, _z),) = ((s, _x),): (PairCoupledTypes<_>,); + let ((y, _z),) = type_ascribe!(((s, _x),), (PairCoupledTypes<_>,)); y //~ ERROR lifetime may not live long enough } fn coupled_regions_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { - let ((y, _z),) = ((s, _x),): (PairCoupledRegions<_>,); + let ((y, _z),) = type_ascribe!(((s, _x),), (PairCoupledRegions<_>,)); y //~ ERROR lifetime may not live long enough } diff --git a/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.stderr b/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.stderr index c99f53c5aa4..8601691e88a 100644 --- a/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.stderr +++ b/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.stderr @@ -3,7 +3,7 @@ error: lifetime may not live long enough | LL | fn coupled_wilds_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { | -- lifetime `'a` defined here -LL | let ((y, _z),) = ((s, _x),): (PairCoupledTypes<_>,); +LL | let ((y, _z),) = type_ascribe!(((s, _x),), (PairCoupledTypes<_>,)); LL | y | ^ returning this value requires that `'a` must outlive `'static` @@ -12,7 +12,7 @@ error: lifetime may not live long enough | LL | fn coupled_regions_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { | -- lifetime `'a` defined here -LL | let ((y, _z),) = ((s, _x),): (PairCoupledRegions<_>,); +LL | let ((y, _z),) = type_ascribe!(((s, _x),), (PairCoupledRegions<_>,)); LL | y | ^ returning this value requires that `'a` must outlive `'static` diff --git a/src/test/ui/nll/user-annotations/type_ascription_static_lifetime.rs b/src/test/ui/nll/user-annotations/type_ascription_static_lifetime.rs index 101b5cfabb3..88d646dee7c 100644 --- a/src/test/ui/nll/user-annotations/type_ascription_static_lifetime.rs +++ b/src/test/ui/nll/user-annotations/type_ascription_static_lifetime.rs @@ -3,5 +3,5 @@ fn main() { let x = 22_u32; - let y: &u32 = &x: &'static u32; //~ ERROR E0597 + let y: &u32 = type_ascribe!(&x, &'static u32); //~ ERROR E0597 } diff --git a/src/test/ui/nll/user-annotations/type_ascription_static_lifetime.stderr b/src/test/ui/nll/user-annotations/type_ascription_static_lifetime.stderr index 133bbef5231..ccbf3c1d927 100644 --- a/src/test/ui/nll/user-annotations/type_ascription_static_lifetime.stderr +++ b/src/test/ui/nll/user-annotations/type_ascription_static_lifetime.stderr @@ -1,10 +1,10 @@ error[E0597]: `x` does not live long enough - --> $DIR/type_ascription_static_lifetime.rs:6:19 + --> $DIR/type_ascription_static_lifetime.rs:6:33 | -LL | let y: &u32 = &x: &'static u32; - | ^^-------------- - | | - | borrowed value does not live long enough +LL | let y: &u32 = type_ascribe!(&x, &'static u32); + | --------------^^--------------- + | | | + | | borrowed value does not live long enough | type annotation requires that `x` is borrowed for `'static` LL | } | - `x` dropped here while still borrowed diff --git a/src/test/ui/parser/expr-as-stmt.fixed b/src/test/ui/parser/expr-as-stmt.fixed index 36709eea17c..b06f62794c4 100644 --- a/src/test/ui/parser/expr-as-stmt.fixed +++ b/src/test/ui/parser/expr-as-stmt.fixed @@ -64,4 +64,16 @@ fn asteroids() -> impl FnOnce() -> bool { { foo(); } || { true } //~ ERROR E0308 } +// https://github.com/rust-lang/rust/issues/105179 +fn r#match() -> i32 { + (match () { () => 1 }) + match () { () => 1 } //~ ERROR expected expression, found `+` + //~^ ERROR mismatched types +} + +// https://github.com/rust-lang/rust/issues/102171 +fn r#unsafe() -> i32 { + (unsafe { 1 }) + unsafe { 1 } //~ ERROR expected expression, found `+` + //~^ ERROR mismatched types +} + fn main() {} diff --git a/src/test/ui/parser/expr-as-stmt.rs b/src/test/ui/parser/expr-as-stmt.rs index 92bb972b240..b39d2b88647 100644 --- a/src/test/ui/parser/expr-as-stmt.rs +++ b/src/test/ui/parser/expr-as-stmt.rs @@ -64,4 +64,16 @@ fn asteroids() -> impl FnOnce() -> bool { { foo() } || { true } //~ ERROR E0308 } +// https://github.com/rust-lang/rust/issues/105179 +fn r#match() -> i32 { + match () { () => 1 } + match () { () => 1 } //~ ERROR expected expression, found `+` + //~^ ERROR mismatched types +} + +// https://github.com/rust-lang/rust/issues/102171 +fn r#unsafe() -> i32 { + unsafe { 1 } + unsafe { 1 } //~ ERROR expected expression, found `+` + //~^ ERROR mismatched types +} + fn main() {} diff --git a/src/test/ui/parser/expr-as-stmt.stderr b/src/test/ui/parser/expr-as-stmt.stderr index 6da4ac34067..18c8b0b7c50 100644 --- a/src/test/ui/parser/expr-as-stmt.stderr +++ b/src/test/ui/parser/expr-as-stmt.stderr @@ -55,6 +55,28 @@ help: parentheses are required to parse this as an expression LL | ({ true }) | { true } | + + +error: expected expression, found `+` + --> $DIR/expr-as-stmt.rs:69:26 + | +LL | match () { () => 1 } + match () { () => 1 } + | ^ expected expression + | +help: parentheses are required to parse this as an expression + | +LL | (match () { () => 1 }) + match () { () => 1 } + | + + + +error: expected expression, found `+` + --> $DIR/expr-as-stmt.rs:75:18 + | +LL | unsafe { 1 } + unsafe { 1 } + | ^ expected expression + | +help: parentheses are required to parse this as an expression + | +LL | (unsafe { 1 }) + unsafe { 1 } + | + + + error[E0308]: mismatched types --> $DIR/expr-as-stmt.rs:64:7 | @@ -201,7 +223,26 @@ help: parentheses are required to parse this as an expression LL | ({ true }) || { true } | + + -error: aborting due to 18 previous errors +error[E0308]: mismatched types + --> $DIR/expr-as-stmt.rs:69:5 + | +LL | match () { () => 1 } + match () { () => 1 } + | ^^^^^^^^^^^^^^^^^^^^- help: consider using a semicolon here + | | + | expected `()`, found integer + +error[E0308]: mismatched types + --> $DIR/expr-as-stmt.rs:75:14 + | +LL | unsafe { 1 } + unsafe { 1 } + | ^ expected `()`, found integer + | +help: you might have meant to return this value + | +LL | unsafe { return 1; } + unsafe { 1 } + | ++++++ + + +error: aborting due to 22 previous errors Some errors have detailed explanations: E0308, E0600, E0614. For more information about an error, try `rustc --explain E0308`. diff --git a/src/test/ui/privacy/effective_visibilities.rs b/src/test/ui/privacy/effective_visibilities.rs index 8d0602fa79f..ff20e20d332 100644 --- a/src/test/ui/privacy/effective_visibilities.rs +++ b/src/test/ui/privacy/effective_visibilities.rs @@ -72,6 +72,5 @@ mod half_public_import { #[rustc_effective_visibility] pub use half_public_import::HalfPublicImport; //~ ERROR Direct: pub, Reexported: pub, Reachable: pub, ReachableThroughImplTrait: pub - //~^ ERROR Direct: pub, Reexported: pub, Reachable: pub, ReachableThroughImplTrait: pub fn main() {} diff --git a/src/test/ui/privacy/effective_visibilities.stderr b/src/test/ui/privacy/effective_visibilities.stderr index 6a99afe64fe..046b6095f4e 100644 --- a/src/test/ui/privacy/effective_visibilities.stderr +++ b/src/test/ui/privacy/effective_visibilities.stderr @@ -124,12 +124,6 @@ error: Direct: pub, Reexported: pub, Reachable: pub, ReachableThroughImplTrait: LL | pub use half_public_import::HalfPublicImport; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: Direct: pub, Reexported: pub, Reachable: pub, ReachableThroughImplTrait: pub - --> $DIR/effective_visibilities.rs:74:9 - | -LL | pub use half_public_import::HalfPublicImport; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - error: Direct: pub(crate), Reexported: pub, Reachable: pub, ReachableThroughImplTrait: pub --> $DIR/effective_visibilities.rs:14:13 | @@ -142,5 +136,5 @@ error: Direct: pub(crate), Reexported: pub, Reachable: pub, ReachableThroughImpl LL | type B; | ^^^^^^ -error: aborting due to 24 previous errors +error: aborting due to 23 previous errors diff --git a/src/test/ui/query-system/fn-sig-cycle-arity.rs b/src/test/ui/query-system/fn-sig-cycle-arity.rs new file mode 100644 index 00000000000..7a9b8469c9e --- /dev/null +++ b/src/test/ui/query-system/fn-sig-cycle-arity.rs @@ -0,0 +1,8 @@ +trait Dancer { + fn dance(&self) -> _ { + //~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types + self.dance() + } +} + +fn main() {} diff --git a/src/test/ui/query-system/fn-sig-cycle-arity.stderr b/src/test/ui/query-system/fn-sig-cycle-arity.stderr new file mode 100644 index 00000000000..67e0c254551 --- /dev/null +++ b/src/test/ui/query-system/fn-sig-cycle-arity.stderr @@ -0,0 +1,9 @@ +error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types + --> $DIR/fn-sig-cycle-arity.rs:2:24 + | +LL | fn dance(&self) -> _ { + | ^ not allowed in type signatures + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0121`. diff --git a/src/test/ui/raw-ref-op/raw-ref-temp-deref.rs b/src/test/ui/raw-ref-op/raw-ref-temp-deref.rs index a814003aebf..2e075a1b9e8 100644 --- a/src/test/ui/raw-ref-op/raw-ref-temp-deref.rs +++ b/src/test/ui/raw-ref-op/raw-ref-temp-deref.rs @@ -18,7 +18,7 @@ fn main() { let index_deref_ref = &raw const SLICE_REF[1]; let x = 0; - let ascribe_ref = &raw const (x: i32); - let ascribe_deref = &raw const (*ARRAY_REF: [i32; 2]); - let ascribe_index_deref = &raw const (ARRAY_REF[0]: i32); + let ascribe_ref = &raw const type_ascribe!(x, i32); + let ascribe_deref = &raw const type_ascribe!(*ARRAY_REF, [i32; 2]); + let ascribe_index_deref = &raw const type_ascribe!(ARRAY_REF[0], i32); } diff --git a/src/test/ui/raw-ref-op/raw-ref-temp.rs b/src/test/ui/raw-ref-op/raw-ref-temp.rs index 32df56468da..10e47cb34c5 100644 --- a/src/test/ui/raw-ref-op/raw-ref-temp.rs +++ b/src/test/ui/raw-ref-op/raw-ref-temp.rs @@ -8,24 +8,24 @@ const PAIR: (i32, i64) = (1, 2); const ARRAY: [i32; 2] = [1, 2]; fn main() { - let ref_expr = &raw const 2; //~ ERROR cannot take address - let mut_ref_expr = &raw mut 3; //~ ERROR cannot take address - let ref_const = &raw const FOUR; //~ ERROR cannot take address - let mut_ref_const = &raw mut FOUR; //~ ERROR cannot take address - - let field_ref_expr = &raw const (1, 2).0; //~ ERROR cannot take address - let mut_field_ref_expr = &raw mut (1, 2).0; //~ ERROR cannot take address - let field_ref = &raw const PAIR.0; //~ ERROR cannot take address - let mut_field_ref = &raw mut PAIR.0; //~ ERROR cannot take address - - let index_ref_expr = &raw const [1, 2][0]; //~ ERROR cannot take address - let mut_index_ref_expr = &raw mut [1, 2][0]; //~ ERROR cannot take address - let index_ref = &raw const ARRAY[0]; //~ ERROR cannot take address - let mut_index_ref = &raw mut ARRAY[1]; //~ ERROR cannot take address - - let ref_ascribe = &raw const (2: i32); //~ ERROR cannot take address - let mut_ref_ascribe = &raw mut (3: i32); //~ ERROR cannot take address - - let ascribe_field_ref = &raw const (PAIR.0: i32); //~ ERROR cannot take address - let ascribe_index_ref = &raw mut (ARRAY[0]: i32); //~ ERROR cannot take address + let ref_expr = &raw const 2; //~ ERROR cannot take address + let mut_ref_expr = &raw mut 3; //~ ERROR cannot take address + let ref_const = &raw const FOUR; //~ ERROR cannot take address + let mut_ref_const = &raw mut FOUR; //~ ERROR cannot take address + + let field_ref_expr = &raw const (1, 2).0; //~ ERROR cannot take address + let mut_field_ref_expr = &raw mut (1, 2).0; //~ ERROR cannot take address + let field_ref = &raw const PAIR.0; //~ ERROR cannot take address + let mut_field_ref = &raw mut PAIR.0; //~ ERROR cannot take address + + let index_ref_expr = &raw const [1, 2][0]; //~ ERROR cannot take address + let mut_index_ref_expr = &raw mut [1, 2][0]; //~ ERROR cannot take address + let index_ref = &raw const ARRAY[0]; //~ ERROR cannot take address + let mut_index_ref = &raw mut ARRAY[1]; //~ ERROR cannot take address + + let ref_ascribe = &raw const type_ascribe!(2, i32); //~ ERROR cannot take address + let mut_ref_ascribe = &raw mut type_ascribe!(3, i32); //~ ERROR cannot take address + + let ascribe_field_ref = &raw const type_ascribe!(PAIR.0, i32); //~ ERROR cannot take address + let ascribe_index_ref = &raw mut type_ascribe!(ARRAY[0], i32); //~ ERROR cannot take address } diff --git a/src/test/ui/raw-ref-op/raw-ref-temp.stderr b/src/test/ui/raw-ref-op/raw-ref-temp.stderr index 80dea76d595..b9666162517 100644 --- a/src/test/ui/raw-ref-op/raw-ref-temp.stderr +++ b/src/test/ui/raw-ref-op/raw-ref-temp.stderr @@ -73,26 +73,26 @@ LL | let mut_index_ref = &raw mut ARRAY[1]; error[E0745]: cannot take address of a temporary --> $DIR/raw-ref-temp.rs:26:34 | -LL | let ref_ascribe = &raw const (2: i32); - | ^^^^^^^^ temporary value +LL | let ref_ascribe = &raw const type_ascribe!(2, i32); + | ^^^^^^^^^^^^^^^^^^^^^ temporary value error[E0745]: cannot take address of a temporary --> $DIR/raw-ref-temp.rs:27:36 | -LL | let mut_ref_ascribe = &raw mut (3: i32); - | ^^^^^^^^ temporary value +LL | let mut_ref_ascribe = &raw mut type_ascribe!(3, i32); + | ^^^^^^^^^^^^^^^^^^^^^ temporary value error[E0745]: cannot take address of a temporary --> $DIR/raw-ref-temp.rs:29:40 | -LL | let ascribe_field_ref = &raw const (PAIR.0: i32); - | ^^^^^^^^^^^^^ temporary value +LL | let ascribe_field_ref = &raw const type_ascribe!(PAIR.0, i32); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ temporary value error[E0745]: cannot take address of a temporary --> $DIR/raw-ref-temp.rs:30:38 | -LL | let ascribe_index_ref = &raw mut (ARRAY[0]: i32); - | ^^^^^^^^^^^^^^^ temporary value +LL | let ascribe_index_ref = &raw mut type_ascribe!(ARRAY[0], i32); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ temporary value error: aborting due to 16 previous errors diff --git a/src/test/ui/reachable/expr_type.rs b/src/test/ui/reachable/expr_type.rs index 8d32397b542..1ceb2f85971 100644 --- a/src/test/ui/reachable/expr_type.rs +++ b/src/test/ui/reachable/expr_type.rs @@ -6,7 +6,7 @@ fn a() { // the cast is unreachable: - let x = {return}: !; //~ ERROR unreachable + let x = type_ascribe!({return}, !); //~ ERROR unreachable } fn main() { } diff --git a/src/test/ui/reachable/expr_type.stderr b/src/test/ui/reachable/expr_type.stderr index c56c64be721..3cb4a32e02f 100644 --- a/src/test/ui/reachable/expr_type.stderr +++ b/src/test/ui/reachable/expr_type.stderr @@ -1,10 +1,10 @@ error: unreachable expression --> $DIR/expr_type.rs:9:13 | -LL | let x = {return}: !; - | ^------^^^^ - | || - | |any code following this expression is unreachable +LL | let x = type_ascribe!({return}, !); + | ^^^^^^^^^^^^^^^------^^^^^ + | | | + | | any code following this expression is unreachable | unreachable expression | note: the lint level is defined here diff --git a/src/test/ui/resolve/bad-module.stderr b/src/test/ui/resolve/bad-module.stderr index 581a6619814..558760c6793 100644 --- a/src/test/ui/resolve/bad-module.stderr +++ b/src/test/ui/resolve/bad-module.stderr @@ -1,15 +1,15 @@ -error[E0433]: failed to resolve: use of undeclared crate or module `thing` - --> $DIR/bad-module.rs:2:15 - | -LL | let foo = thing::len(Vec::new()); - | ^^^^^ use of undeclared crate or module `thing` - error[E0433]: failed to resolve: use of undeclared crate or module `foo` --> $DIR/bad-module.rs:5:15 | LL | let foo = foo::bar::baz(); | ^^^ use of undeclared crate or module `foo` +error[E0433]: failed to resolve: use of undeclared crate or module `thing` + --> $DIR/bad-module.rs:2:15 + | +LL | let foo = thing::len(Vec::new()); + | ^^^^^ use of undeclared crate or module `thing` + error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0433`. diff --git a/src/test/ui/resolve/issue-101749-2.rs b/src/test/ui/resolve/issue-101749-2.rs new file mode 100644 index 00000000000..4d3d469447c --- /dev/null +++ b/src/test/ui/resolve/issue-101749-2.rs @@ -0,0 +1,16 @@ +struct Rectangle { + width: i32, + height: i32, +} +impl Rectangle { + fn new(width: i32, height: i32) -> Self { + Self { width, height } + } +} + +fn main() { + let rect = Rectangle::new(3, 4); + // `area` is not implemented for `Rectangle`, so this should not suggest + let _ = rect::area(); + //~^ ERROR failed to resolve: use of undeclared crate or module `rect` +} diff --git a/src/test/ui/resolve/issue-101749-2.stderr b/src/test/ui/resolve/issue-101749-2.stderr new file mode 100644 index 00000000000..370d4b14540 --- /dev/null +++ b/src/test/ui/resolve/issue-101749-2.stderr @@ -0,0 +1,9 @@ +error[E0433]: failed to resolve: use of undeclared crate or module `rect` + --> $DIR/issue-101749-2.rs:14:13 + | +LL | let _ = rect::area(); + | ^^^^ use of undeclared crate or module `rect` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0433`. diff --git a/src/test/ui/resolve/issue-101749.fixed b/src/test/ui/resolve/issue-101749.fixed new file mode 100644 index 00000000000..3e5544296e4 --- /dev/null +++ b/src/test/ui/resolve/issue-101749.fixed @@ -0,0 +1,19 @@ +// run-rustfix +struct Rectangle { + width: i32, + height: i32, +} +impl Rectangle { + fn new(width: i32, height: i32) -> Self { + Self { width, height } + } + fn area(&self) -> i32 { + self.height * self.width + } +} + +fn main() { + let rect = Rectangle::new(3, 4); + let _ = rect.area(); + //~^ ERROR failed to resolve: use of undeclared crate or module `rect` +} diff --git a/src/test/ui/resolve/issue-101749.rs b/src/test/ui/resolve/issue-101749.rs new file mode 100644 index 00000000000..fd67ccab6fa --- /dev/null +++ b/src/test/ui/resolve/issue-101749.rs @@ -0,0 +1,19 @@ +// run-rustfix +struct Rectangle { + width: i32, + height: i32, +} +impl Rectangle { + fn new(width: i32, height: i32) -> Self { + Self { width, height } + } + fn area(&self) -> i32 { + self.height * self.width + } +} + +fn main() { + let rect = Rectangle::new(3, 4); + let _ = rect::area(); + //~^ ERROR failed to resolve: use of undeclared crate or module `rect` +} diff --git a/src/test/ui/resolve/issue-101749.stderr b/src/test/ui/resolve/issue-101749.stderr new file mode 100644 index 00000000000..dd29d7fc051 --- /dev/null +++ b/src/test/ui/resolve/issue-101749.stderr @@ -0,0 +1,14 @@ +error[E0433]: failed to resolve: use of undeclared crate or module `rect` + --> $DIR/issue-101749.rs:17:13 + | +LL | let _ = rect::area(); + | ^^^^ use of undeclared crate or module `rect` + | +help: you may have meant to call an instance method + | +LL | let _ = rect.area(); + | ~ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0433`. diff --git a/src/test/ui/resolve/issue-105069.rs b/src/test/ui/resolve/issue-105069.rs new file mode 100644 index 00000000000..73455cf7711 --- /dev/null +++ b/src/test/ui/resolve/issue-105069.rs @@ -0,0 +1,11 @@ +use self::A::*; +use V; //~ ERROR `V` is ambiguous +use self::B::*; +enum A { + V +} +enum B { + V +} + +fn main() {} diff --git a/src/test/ui/resolve/issue-105069.stderr b/src/test/ui/resolve/issue-105069.stderr new file mode 100644 index 00000000000..1e6c9c6e2dc --- /dev/null +++ b/src/test/ui/resolve/issue-105069.stderr @@ -0,0 +1,21 @@ +error[E0659]: `V` is ambiguous + --> $DIR/issue-105069.rs:2:5 + | +LL | use V; + | ^ ambiguous name + | + = note: ambiguous because of multiple potential import sources +note: `V` could refer to the variant imported here + --> $DIR/issue-105069.rs:1:5 + | +LL | use self::A::*; + | ^^^^^^^^^^ +note: `V` could also refer to the variant imported here + --> $DIR/issue-105069.rs:3:5 + | +LL | use self::B::*; + | ^^^^^^^^^^ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0659`. diff --git a/src/test/ui/resolve/issue-24968.stderr b/src/test/ui/resolve/issue-24968.stderr index 7e539d25804..82f5a1d5b57 100644 --- a/src/test/ui/resolve/issue-24968.stderr +++ b/src/test/ui/resolve/issue-24968.stderr @@ -1,15 +1,3 @@ -error[E0433]: failed to resolve: `Self` is only available in impls, traits, and type definitions - --> $DIR/issue-24968.rs:21:19 - | -LL | const FOO2: u32 = Self::bar(); - | ^^^^ `Self` is only available in impls, traits, and type definitions - -error[E0433]: failed to resolve: `Self` is only available in impls, traits, and type definitions - --> $DIR/issue-24968.rs:27:22 - | -LL | static FOO_S2: u32 = Self::bar(); - | ^^^^ `Self` is only available in impls, traits, and type definitions - error[E0411]: cannot find type `Self` in this scope --> $DIR/issue-24968.rs:3:11 | @@ -51,6 +39,18 @@ LL | static FOO_S: Self = 0; | | | `Self` not allowed in a static item +error[E0433]: failed to resolve: `Self` is only available in impls, traits, and type definitions + --> $DIR/issue-24968.rs:21:19 + | +LL | const FOO2: u32 = Self::bar(); + | ^^^^ `Self` is only available in impls, traits, and type definitions + +error[E0433]: failed to resolve: `Self` is only available in impls, traits, and type definitions + --> $DIR/issue-24968.rs:27:22 + | +LL | static FOO_S2: u32 = Self::bar(); + | ^^^^ `Self` is only available in impls, traits, and type definitions + error: aborting due to 7 previous errors Some errors have detailed explanations: E0411, E0433. diff --git a/src/test/ui/resolve/typo-suggestion-mistyped-in-path.stderr b/src/test/ui/resolve/typo-suggestion-mistyped-in-path.stderr index ff7cf531c06..89b69e14099 100644 --- a/src/test/ui/resolve/typo-suggestion-mistyped-in-path.stderr +++ b/src/test/ui/resolve/typo-suggestion-mistyped-in-path.stderr @@ -1,3 +1,24 @@ +error[E0433]: failed to resolve: could not find `Struc` in `module` + --> $DIR/typo-suggestion-mistyped-in-path.rs:35:13 + | +LL | module::Struc::foo(); + | ^^^^^ + | | + | could not find `Struc` in `module` + | help: a struct with a similar name exists: `Struct` + +error[E0599]: no function or associated item named `fob` found for struct `Struct` in the current scope + --> $DIR/typo-suggestion-mistyped-in-path.rs:23:13 + | +LL | struct Struct; + | ------------- function or associated item `fob` not found for this struct +... +LL | Struct::fob(); + | ^^^ + | | + | function or associated item not found in `Struct` + | help: there is an associated function with a similar name: `foo` + error[E0433]: failed to resolve: use of undeclared type `Struc` --> $DIR/typo-suggestion-mistyped-in-path.rs:27:5 | @@ -18,15 +39,6 @@ help: there is a crate or module with a similar name LL | module::foo(); | ~~~~~~ -error[E0433]: failed to resolve: could not find `Struc` in `module` - --> $DIR/typo-suggestion-mistyped-in-path.rs:35:13 - | -LL | module::Struc::foo(); - | ^^^^^ - | | - | could not find `Struc` in `module` - | help: a struct with a similar name exists: `Struct` - error[E0433]: failed to resolve: use of undeclared type `Trai` --> $DIR/typo-suggestion-mistyped-in-path.rs:39:5 | @@ -36,18 +48,6 @@ LL | Trai::foo(); | use of undeclared type `Trai` | help: a trait with a similar name exists: `Trait` -error[E0599]: no function or associated item named `fob` found for struct `Struct` in the current scope - --> $DIR/typo-suggestion-mistyped-in-path.rs:23:13 - | -LL | struct Struct; - | ------------- function or associated item `fob` not found for this struct -... -LL | Struct::fob(); - | ^^^ - | | - | function or associated item not found in `Struct` - | help: there is an associated function with a similar name: `foo` - error: aborting due to 5 previous errors Some errors have detailed explanations: E0433, E0599. diff --git a/src/test/ui/resolve/use_suggestion.stderr b/src/test/ui/resolve/use_suggestion.stderr index 58cb659e822..54ad853831f 100644 --- a/src/test/ui/resolve/use_suggestion.stderr +++ b/src/test/ui/resolve/use_suggestion.stderr @@ -1,9 +1,3 @@ -error[E0433]: failed to resolve: use of undeclared type `GooMap` - --> $DIR/use_suggestion.rs:3:14 - | -LL | let x2 = GooMap::new(); - | ^^^^^^ use of undeclared type `GooMap` - error[E0433]: failed to resolve: use of undeclared type `HashMap` --> $DIR/use_suggestion.rs:2:14 | @@ -32,6 +26,12 @@ error[E0412]: cannot find type `GooMap` in this scope LL | let y2: GooMap; | ^^^^^^ not found in this scope +error[E0433]: failed to resolve: use of undeclared type `GooMap` + --> $DIR/use_suggestion.rs:3:14 + | +LL | let x2 = GooMap::new(); + | ^^^^^^ use of undeclared type `GooMap` + error: aborting due to 4 previous errors Some errors have detailed explanations: E0412, E0433. diff --git a/src/test/ui/return/tail-expr-as-potential-return.rs b/src/test/ui/return/tail-expr-as-potential-return.rs index 2c3610fb24d..f46e088b85f 100644 --- a/src/test/ui/return/tail-expr-as-potential-return.rs +++ b/src/test/ui/return/tail-expr-as-potential-return.rs @@ -12,7 +12,6 @@ // edition:2018 fn main() { - let _ = foo(true); } fn foo(x: bool) -> Result<f64, i32> { @@ -30,3 +29,19 @@ async fn bar(x: bool) -> Result<f64, i32> { } Ok(42.0) } + +trait Identity { + type Out; +} + +impl<T> Identity for T { + type Out = T; +} + +async fn foo2() -> i32 { + if true { + 1i32 //~ ERROR mismatched types + //| HELP you might have meant to return this value + } + 0 +} diff --git a/src/test/ui/return/tail-expr-as-potential-return.stderr b/src/test/ui/return/tail-expr-as-potential-return.stderr index dec1cbc4624..9183b4599ba 100644 --- a/src/test/ui/return/tail-expr-as-potential-return.stderr +++ b/src/test/ui/return/tail-expr-as-potential-return.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/tail-expr-as-potential-return.rs:28:9 + --> $DIR/tail-expr-as-potential-return.rs:27:9 | LL | / if x { LL | | Err(42) @@ -16,7 +16,22 @@ LL | return Err(42); | ++++++ + error[E0308]: mismatched types - --> $DIR/tail-expr-as-potential-return.rs:20:9 + --> $DIR/tail-expr-as-potential-return.rs:43:9 + | +LL | / if true { +LL | | 1i32 + | | ^^^^ expected `()`, found `i32` +LL | | //| HELP you might have meant to return this value +LL | | } + | |_____- expected this to be `()` + | +help: you might have meant to return this value + | +LL | return 1i32; + | ++++++ + + +error[E0308]: mismatched types + --> $DIR/tail-expr-as-potential-return.rs:19:9 | LL | / if x { LL | | Err(42) @@ -32,6 +47,6 @@ help: you might have meant to return this value LL | return Err(42); | ++++++ + -error: aborting due to 2 previous errors +error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/rfc-2632-const-trait-impl/issue-79450.rs b/src/test/ui/rfc-2632-const-trait-impl/issue-79450.rs new file mode 100644 index 00000000000..b604c65d751 --- /dev/null +++ b/src/test/ui/rfc-2632-const-trait-impl/issue-79450.rs @@ -0,0 +1,20 @@ +#![feature(const_fmt_arguments_new)] +#![feature(const_trait_impl)] + +#[const_trait] +trait Tr { + fn req(&self); + + fn prov(&self) { + println!("lul"); //~ ERROR: cannot call non-const fn `_print` in constant functions + self.req(); + } +} + +struct S; + +impl const Tr for S { + fn req(&self) {} +} + +fn main() {} diff --git a/src/test/ui/rfc-2632-const-trait-impl/issue-79450.stderr b/src/test/ui/rfc-2632-const-trait-impl/issue-79450.stderr new file mode 100644 index 00000000000..082c0333fbf --- /dev/null +++ b/src/test/ui/rfc-2632-const-trait-impl/issue-79450.stderr @@ -0,0 +1,12 @@ +error[E0015]: cannot call non-const fn `_print` in constant functions + --> $DIR/issue-79450.rs:9:9 + | +LL | println!("lul"); + | ^^^^^^^^^^^^^^^ + | + = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = note: this error originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0015`. diff --git a/src/test/ui/span/macro-ty-params.rs b/src/test/ui/span/macro-ty-params.rs index 0a93105b664..cf28b0255d1 100644 --- a/src/test/ui/span/macro-ty-params.rs +++ b/src/test/ui/span/macro-ty-params.rs @@ -9,5 +9,7 @@ macro_rules! foo { () => () } fn main() { foo::<T>!(); //~ ERROR generic arguments in macro path foo::<>!(); //~ ERROR generic arguments in macro path - m!(Default<>); //~ ERROR unexpected generic arguments in path + m!(Default<>); + //~^ ERROR unexpected generic arguments in path + //~^^ ERROR generic arguments in macro path } diff --git a/src/test/ui/span/macro-ty-params.stderr b/src/test/ui/span/macro-ty-params.stderr index 138cd2598a1..7023ef8cd1c 100644 --- a/src/test/ui/span/macro-ty-params.stderr +++ b/src/test/ui/span/macro-ty-params.stderr @@ -16,5 +16,11 @@ error: unexpected generic arguments in path LL | m!(Default<>); | ^^ -error: aborting due to 3 previous errors +error: generic arguments in macro path + --> $DIR/macro-ty-params.rs:12:15 + | +LL | m!(Default<>); + | ^^ + +error: aborting due to 4 previous errors diff --git a/src/test/ui/stats/hir-stats.stderr b/src/test/ui/stats/hir-stats.stderr index 2a0e9497a21..15900bef7f6 100644 --- a/src/test/ui/stats/hir-stats.stderr +++ b/src/test/ui/stats/hir-stats.stderr @@ -120,59 +120,59 @@ hir-stats Name Accumulated Size Count Item Size hir-stats ---------------------------------------------------------------- hir-stats ForeignItemRef 24 ( 0.3%) 1 24 hir-stats Lifetime 24 ( 0.3%) 1 24 -hir-stats Mod 32 ( 0.3%) 1 32 +hir-stats Mod 32 ( 0.4%) 1 32 hir-stats ExprField 40 ( 0.4%) 1 40 hir-stats TraitItemRef 56 ( 0.6%) 2 28 hir-stats Local 64 ( 0.7%) 1 64 hir-stats Param 64 ( 0.7%) 2 32 hir-stats InlineAsm 72 ( 0.8%) 1 72 hir-stats ImplItemRef 72 ( 0.8%) 2 36 -hir-stats Body 96 ( 1.0%) 3 32 -hir-stats FieldDef 96 ( 1.0%) 2 48 -hir-stats Arm 96 ( 1.0%) 2 48 -hir-stats Stmt 96 ( 1.0%) 3 32 -hir-stats - Local 32 ( 0.3%) 1 -hir-stats - Semi 32 ( 0.3%) 1 -hir-stats - Expr 32 ( 0.3%) 1 +hir-stats Body 96 ( 1.1%) 3 32 +hir-stats FieldDef 96 ( 1.1%) 2 48 +hir-stats Arm 96 ( 1.1%) 2 48 +hir-stats Stmt 96 ( 1.1%) 3 32 +hir-stats - Local 32 ( 0.4%) 1 +hir-stats - Semi 32 ( 0.4%) 1 +hir-stats - Expr 32 ( 0.4%) 1 hir-stats FnDecl 120 ( 1.3%) 3 40 hir-stats Attribute 128 ( 1.4%) 4 32 hir-stats GenericArg 128 ( 1.4%) 4 32 -hir-stats - Type 32 ( 0.3%) 1 -hir-stats - Lifetime 96 ( 1.0%) 3 +hir-stats - Type 32 ( 0.4%) 1 +hir-stats - Lifetime 96 ( 1.1%) 3 hir-stats GenericArgs 144 ( 1.6%) 3 48 hir-stats Variant 176 ( 1.9%) 2 88 hir-stats GenericBound 192 ( 2.1%) 4 48 hir-stats - Trait 192 ( 2.1%) 4 hir-stats WherePredicate 192 ( 2.1%) 3 64 hir-stats - BoundPredicate 192 ( 2.1%) 3 -hir-stats Block 288 ( 3.1%) 6 48 -hir-stats Pat 360 ( 3.9%) 5 72 +hir-stats Block 288 ( 3.2%) 6 48 +hir-stats Pat 360 ( 4.0%) 5 72 hir-stats - Wild 72 ( 0.8%) 1 hir-stats - Struct 72 ( 0.8%) 1 hir-stats - Binding 216 ( 2.4%) 3 hir-stats GenericParam 400 ( 4.4%) 5 80 -hir-stats Generics 560 ( 6.1%) 10 56 -hir-stats Ty 720 ( 7.9%) 15 48 +hir-stats Generics 560 ( 6.2%) 10 56 +hir-stats Ty 720 ( 8.0%) 15 48 hir-stats - Ptr 48 ( 0.5%) 1 hir-stats - Rptr 48 ( 0.5%) 1 -hir-stats - Path 624 ( 6.8%) 13 -hir-stats Expr 768 ( 8.4%) 12 64 +hir-stats - Path 624 ( 6.9%) 13 +hir-stats Expr 768 ( 8.5%) 12 64 hir-stats - Path 64 ( 0.7%) 1 hir-stats - Struct 64 ( 0.7%) 1 hir-stats - Match 64 ( 0.7%) 1 hir-stats - InlineAsm 64 ( 0.7%) 1 hir-stats - Lit 128 ( 1.4%) 2 hir-stats - Block 384 ( 4.2%) 6 -hir-stats Item 960 (10.5%) 12 80 +hir-stats Item 880 ( 9.7%) 11 80 hir-stats - Trait 80 ( 0.9%) 1 hir-stats - Enum 80 ( 0.9%) 1 hir-stats - ExternCrate 80 ( 0.9%) 1 hir-stats - ForeignMod 80 ( 0.9%) 1 hir-stats - Impl 80 ( 0.9%) 1 -hir-stats - Fn 160 ( 1.7%) 2 -hir-stats - Use 400 ( 4.4%) 5 -hir-stats Path 1_280 (14.0%) 32 40 -hir-stats PathSegment 1_920 (20.9%) 40 48 +hir-stats - Fn 160 ( 1.8%) 2 +hir-stats - Use 320 ( 3.5%) 4 +hir-stats Path 1_240 (13.7%) 31 40 +hir-stats PathSegment 1_920 (21.2%) 40 48 hir-stats ---------------------------------------------------------------- -hir-stats Total 9_168 +hir-stats Total 9_048 hir-stats diff --git a/src/test/ui/suggestions/assoc-const-as-fn.rs b/src/test/ui/suggestions/assoc-const-as-fn.rs new file mode 100644 index 00000000000..4b4595dd5e6 --- /dev/null +++ b/src/test/ui/suggestions/assoc-const-as-fn.rs @@ -0,0 +1,18 @@ +unsafe fn pointer(v: usize, w: u32) {} + +pub trait UniformScalar {} +impl UniformScalar for u32 {} + +pub trait GlUniformScalar: UniformScalar { + const FACTORY: unsafe fn(usize, Self) -> (); +} +impl GlUniformScalar for u32 { + const FACTORY: unsafe fn(usize, Self) -> () = pointer; +} + +pub fn foo<T: UniformScalar>(value: T) { + <T as GlUniformScalar>::FACTORY(1, value); + //~^ ERROR the trait bound `T: GlUniformScalar` is not satisfied +} + +fn main() {} diff --git a/src/test/ui/suggestions/assoc-const-as-fn.stderr b/src/test/ui/suggestions/assoc-const-as-fn.stderr new file mode 100644 index 00000000000..fa740687858 --- /dev/null +++ b/src/test/ui/suggestions/assoc-const-as-fn.stderr @@ -0,0 +1,14 @@ +error[E0277]: the trait bound `T: GlUniformScalar` is not satisfied + --> $DIR/assoc-const-as-fn.rs:14:5 + | +LL | <T as GlUniformScalar>::FACTORY(1, value); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `GlUniformScalar` is not implemented for `T` + | +help: consider further restricting this bound + | +LL | pub fn foo<T: UniformScalar + GlUniformScalar>(value: T) { + | +++++++++++++++++ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/src/test/ui/suggestions/crate-or-module-typo.stderr b/src/test/ui/suggestions/crate-or-module-typo.stderr index e8250c9fa5f..98b88b4fb92 100644 --- a/src/test/ui/suggestions/crate-or-module-typo.stderr +++ b/src/test/ui/suggestions/crate-or-module-typo.stderr @@ -20,12 +20,6 @@ help: there is a crate or module with a similar name LL | use bar::bar; | ~~~ -error[E0433]: failed to resolve: use of undeclared crate or module `bar` - --> $DIR/crate-or-module-typo.rs:6:20 - | -LL | pub fn bar() { bar::baz(); } - | ^^^ use of undeclared crate or module `bar` - error[E0433]: failed to resolve: use of undeclared crate or module `st` --> $DIR/crate-or-module-typo.rs:14:10 | @@ -37,6 +31,12 @@ help: there is a crate or module with a similar name LL | bar: std::cell::Cell<bool> | ~~~ +error[E0433]: failed to resolve: use of undeclared crate or module `bar` + --> $DIR/crate-or-module-typo.rs:6:20 + | +LL | pub fn bar() { bar::baz(); } + | ^^^ use of undeclared crate or module `bar` + error: aborting due to 4 previous errors Some errors have detailed explanations: E0432, E0433. diff --git a/src/test/ui/suggestions/dont-suggest-ufcs-for-const.stderr b/src/test/ui/suggestions/dont-suggest-ufcs-for-const.stderr index 04e0511d788..0d9543e0b8f 100644 --- a/src/test/ui/suggestions/dont-suggest-ufcs-for-const.stderr +++ b/src/test/ui/suggestions/dont-suggest-ufcs-for-const.stderr @@ -2,13 +2,7 @@ error[E0599]: no method named `MAX` found for type `u32` in the current scope --> $DIR/dont-suggest-ufcs-for-const.rs:2:11 | LL | 1_u32.MAX(); - | ------^^^-- - | | | - | | this is an associated function, not a method - | help: use associated function syntax instead: `u32::MAX()` - | - = note: found the following associated functions; to be used as methods, functions must have a `self` parameter - = note: the candidate is defined in an impl for the type `u32` + | ^^^ method not found in `u32` error: aborting due to previous error diff --git a/src/test/ui/trait-bounds/impl-bound-with-references-error.rs b/src/test/ui/trait-bounds/impl-bound-with-references-error.rs new file mode 100644 index 00000000000..e5d0a1aaed0 --- /dev/null +++ b/src/test/ui/trait-bounds/impl-bound-with-references-error.rs @@ -0,0 +1,20 @@ +// Regression test for #105138. +// This test ensures that the compiler does not add note +// for implementation of trait whose inner type is erroneous. + +pub enum LabelText { + Plain, +} + +impl<T> From<T> for LabelText +//~^ ERROR conflicting implementations of trait `From<LabelText>` for type `LabelText` [E0119] +where + T: Into<Cow<'static, str>>, + //~^ ERROR cannot find type `Cow` in this scope [E0412] +{ + fn from(text: T) -> Self { + LabelText::Plain(text.into()) + } +} + +fn main() {} diff --git a/src/test/ui/trait-bounds/impl-bound-with-references-error.stderr b/src/test/ui/trait-bounds/impl-bound-with-references-error.stderr new file mode 100644 index 00000000000..95fd6bd504c --- /dev/null +++ b/src/test/ui/trait-bounds/impl-bound-with-references-error.stderr @@ -0,0 +1,24 @@ +error[E0412]: cannot find type `Cow` in this scope + --> $DIR/impl-bound-with-references-error.rs:12:13 + | +LL | T: Into<Cow<'static, str>>, + | ^^^ not found in this scope + | +help: consider importing this enum + | +LL | use std::borrow::Cow; + | + +error[E0119]: conflicting implementations of trait `From<LabelText>` for type `LabelText` + --> $DIR/impl-bound-with-references-error.rs:9:1 + | +LL | impl<T> From<T> for LabelText + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: conflicting implementation in crate `core`: + - impl<T> From<T> for T; + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0119, E0412. +For more information about an error, try `rustc --explain E0119`. diff --git a/src/test/ui/type/type-ascription-soundness.rs b/src/test/ui/type/type-ascription-soundness.rs index d583fc2131a..08316cdcd35 100644 --- a/src/test/ui/type/type-ascription-soundness.rs +++ b/src/test/ui/type/type-ascription-soundness.rs @@ -4,10 +4,10 @@ fn main() { let arr = &[1u8, 2, 3]; - let ref x = arr: &[u8]; //~ ERROR mismatched types - let ref mut x = arr: &[u8]; //~ ERROR mismatched types - match arr: &[u8] { //~ ERROR mismatched types + let ref x = type_ascribe!(arr, &[u8]); //~ ERROR mismatched types + let ref mut x = type_ascribe!(arr, &[u8]); //~ ERROR mismatched types + match type_ascribe!(arr, &[u8]) { //~ ERROR mismatched types ref x => {} } - let _len = (arr: &[u8]).len(); //~ ERROR mismatched types + let _len = type_ascribe!(arr, &[u8]).len(); //~ ERROR mismatched types } diff --git a/src/test/ui/type/type-ascription-soundness.stderr b/src/test/ui/type/type-ascription-soundness.stderr index 6ed940823af..522d5b2e375 100644 --- a/src/test/ui/type/type-ascription-soundness.stderr +++ b/src/test/ui/type/type-ascription-soundness.stderr @@ -1,35 +1,35 @@ error[E0308]: mismatched types - --> $DIR/type-ascription-soundness.rs:7:17 + --> $DIR/type-ascription-soundness.rs:7:31 | -LL | let ref x = arr: &[u8]; - | ^^^ expected slice `[u8]`, found array `[u8; 3]` +LL | let ref x = type_ascribe!(arr, &[u8]); + | ^^^ expected slice `[u8]`, found array `[u8; 3]` | = note: expected reference `&[u8]` found reference `&[u8; 3]` error[E0308]: mismatched types - --> $DIR/type-ascription-soundness.rs:8:21 + --> $DIR/type-ascription-soundness.rs:8:35 | -LL | let ref mut x = arr: &[u8]; - | ^^^ expected slice `[u8]`, found array `[u8; 3]` +LL | let ref mut x = type_ascribe!(arr, &[u8]); + | ^^^ expected slice `[u8]`, found array `[u8; 3]` | = note: expected reference `&[u8]` found reference `&[u8; 3]` error[E0308]: mismatched types - --> $DIR/type-ascription-soundness.rs:9:11 + --> $DIR/type-ascription-soundness.rs:9:25 | -LL | match arr: &[u8] { - | ^^^ expected slice `[u8]`, found array `[u8; 3]` +LL | match type_ascribe!(arr, &[u8]) { + | ^^^ expected slice `[u8]`, found array `[u8; 3]` | = note: expected reference `&[u8]` found reference `&[u8; 3]` error[E0308]: mismatched types - --> $DIR/type-ascription-soundness.rs:12:17 + --> $DIR/type-ascription-soundness.rs:12:30 | -LL | let _len = (arr: &[u8]).len(); - | ^^^ expected slice `[u8]`, found array `[u8; 3]` +LL | let _len = type_ascribe!(arr, &[u8]).len(); + | ^^^ expected slice `[u8]`, found array `[u8; 3]` | = note: expected reference `&[u8]` found reference `&[u8; 3]` diff --git a/src/test/ui/type/type-ascription.rs b/src/test/ui/type/type-ascription.rs index 7adb074428c..e4a4c89d057 100644 --- a/src/test/ui/type/type-ascription.rs +++ b/src/test/ui/type/type-ascription.rs @@ -8,32 +8,32 @@ use std::mem; -const C1: u8 = 10: u8; -const C2: [u8; 1: usize] = [1]; +const C1: u8 = type_ascribe!(10, u8); +const C2: [u8; type_ascribe!(1, usize)] = [1]; struct S { a: u8 } fn main() { - assert_eq!(C1.into(): i32, 10); + assert_eq!(type_ascribe!(C1.into(), i32), 10); assert_eq!(C2[0], 1); - let s = S { a: 10: u8 }; + let s = S { a: type_ascribe!(10, u8) }; let arr = &[1u8, 2, 3]; - let mut v = arr.iter().cloned().collect(): Vec<_>; + let mut v = type_ascribe!(arr.iter().cloned().collect(), Vec<_>); v.push(4); assert_eq!(v, [1, 2, 3, 4]); - let a = 1: u8; - let b = a.into(): u16; - assert_eq!(v[a.into(): usize], 2); + let a = type_ascribe!(1, u8); + let b = type_ascribe!(a.into(), u16); + assert_eq!(v[type_ascribe!(a.into(), usize)], 2); assert_eq!(mem::size_of_val(&a), 1); assert_eq!(mem::size_of_val(&b), 2); - assert_eq!(b, 1: u16); + assert_eq!(b, type_ascribe!(1, u16)); let mut v = Vec::new(); - v: Vec<u8> = vec![1, 2, 3]; // Place expression type ascription + type_ascribe!(v, Vec<u8>) = vec![1, 2, 3]; // Place expression type ascription assert_eq!(v, [1u8, 2, 3]); } diff --git a/src/test/ui/typeck/issue-91267.rs b/src/test/ui/typeck/issue-91267.rs index f5a37e9cb86..4e39cfab5b4 100644 --- a/src/test/ui/typeck/issue-91267.rs +++ b/src/test/ui/typeck/issue-91267.rs @@ -1,5 +1,7 @@ +#![feature(type_ascription)] + fn main() { - 0: u8<e<5>=e> + type_ascribe!(0, u8<e<5>=e>) //~^ ERROR: cannot find type `e` in this scope [E0412] //~| ERROR: associated type bindings are not allowed here [E0229] //~| ERROR: mismatched types [E0308] diff --git a/src/test/ui/typeck/issue-91267.stderr b/src/test/ui/typeck/issue-91267.stderr index aac00b9b6a9..72acd9c673b 100644 --- a/src/test/ui/typeck/issue-91267.stderr +++ b/src/test/ui/typeck/issue-91267.stderr @@ -1,25 +1,22 @@ error[E0412]: cannot find type `e` in this scope - --> $DIR/issue-91267.rs:2:16 + --> $DIR/issue-91267.rs:4:30 | -LL | 0: u8<e<5>=e> - | ^ - | | - | not found in this scope - | help: maybe you meant to write an assignment here: `let e` +LL | type_ascribe!(0, u8<e<5>=e>) + | ^ not found in this scope error[E0229]: associated type bindings are not allowed here - --> $DIR/issue-91267.rs:2:11 + --> $DIR/issue-91267.rs:4:25 | -LL | 0: u8<e<5>=e> - | ^^^^^^ associated type not allowed here +LL | type_ascribe!(0, u8<e<5>=e>) + | ^^^^^^ associated type not allowed here error[E0308]: mismatched types - --> $DIR/issue-91267.rs:2:5 + --> $DIR/issue-91267.rs:4:5 | LL | fn main() { | - expected `()` because of default return type -LL | 0: u8<e<5>=e> - | ^^^^^^^^^^^^^ expected `()`, found `u8` +LL | type_ascribe!(0, u8<e<5>=e>) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `()`, found `u8` error: aborting due to 3 previous errors diff --git a/src/tools/cargo b/src/tools/cargo -Subproject e027c4b5d25af2119b1956fac42863b9b324274 +Subproject f6e737b1e3386adb89333bf06a01f68a91ac530 diff --git a/src/tools/clippy/CHANGELOG.md b/src/tools/clippy/CHANGELOG.md index 6f1f73c1fd2..23912bb3ed6 100644 --- a/src/tools/clippy/CHANGELOG.md +++ b/src/tools/clippy/CHANGELOG.md @@ -4188,6 +4188,7 @@ Released 2018-09-13 [`misaligned_transmute`]: https://rust-lang.github.io/rust-clippy/master/index.html#misaligned_transmute [`mismatched_target_os`]: https://rust-lang.github.io/rust-clippy/master/index.html#mismatched_target_os [`mismatching_type_param_order`]: https://rust-lang.github.io/rust-clippy/master/index.html#mismatching_type_param_order +[`misnamed_getters`]: https://rust-lang.github.io/rust-clippy/master/index.html#misnamed_getters [`misrefactored_assign_op`]: https://rust-lang.github.io/rust-clippy/master/index.html#misrefactored_assign_op [`missing_const_for_fn`]: https://rust-lang.github.io/rust-clippy/master/index.html#missing_const_for_fn [`missing_docs_in_private_items`]: https://rust-lang.github.io/rust-clippy/master/index.html#missing_docs_in_private_items @@ -4450,6 +4451,7 @@ Released 2018-09-13 [`unnecessary_mut_passed`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed [`unnecessary_operation`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_operation [`unnecessary_owned_empty_strings`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_owned_empty_strings +[`unnecessary_safety_comment`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_safety_comment [`unnecessary_safety_doc`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_safety_doc [`unnecessary_self_imports`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_self_imports [`unnecessary_sort_by`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_sort_by diff --git a/src/tools/clippy/README.md b/src/tools/clippy/README.md index f74de7de42b..81254ba8b8b 100644 --- a/src/tools/clippy/README.md +++ b/src/tools/clippy/README.md @@ -197,8 +197,8 @@ disallowed-names = ["toto", "tata", "titi"] cognitive-complexity-threshold = 30 ``` -See the [list of lints](https://rust-lang.github.io/rust-clippy/master/index.html) for more information about which -lints can be configured and the meaning of the variables. +See the [list of configurable lints](https://rust-lang.github.io/rust-clippy/master/index.html#Configuration), +the lint descriptions contain the names and meanings of these configuration variables. > **Note** > @@ -224,7 +224,7 @@ in the `Cargo.toml` can be used. rust-version = "1.30" ``` -The MSRV can also be specified as an inner attribute, like below. +The MSRV can also be specified as an attribute, like below. ```rust #![feature(custom_inner_attributes)] diff --git a/src/tools/clippy/book/src/SUMMARY.md b/src/tools/clippy/book/src/SUMMARY.md index 0b945faf9b7..1f0b8db28a1 100644 --- a/src/tools/clippy/book/src/SUMMARY.md +++ b/src/tools/clippy/book/src/SUMMARY.md @@ -21,3 +21,4 @@ - [The Clippy Book](development/infrastructure/book.md) - [Proposals](development/proposals/README.md) - [Roadmap 2021](development/proposals/roadmap-2021.md) + - [Syntax Tree Patterns](development/proposals/syntax-tree-patterns.md) diff --git a/src/tools/clippy/book/src/configuration.md b/src/tools/clippy/book/src/configuration.md index 77f1d2e8797..430ff8b739a 100644 --- a/src/tools/clippy/book/src/configuration.md +++ b/src/tools/clippy/book/src/configuration.md @@ -11,8 +11,8 @@ disallowed-names = ["toto", "tata", "titi"] cognitive-complexity-threshold = 30 ``` -See the [list of lints](https://rust-lang.github.io/rust-clippy/master/index.html) for more information about which -lints can be configured and the meaning of the variables. +See the [list of configurable lints](https://rust-lang.github.io/rust-clippy/master/index.html#Configuration), +the lint descriptions contain the names and meanings of these configuration variables. To deactivate the "for further information visit *lint-link*" message you can define the `CLIPPY_DISABLE_DOCS_LINKS` environment variable. @@ -72,7 +72,7 @@ minimum supported Rust version (MSRV) in the clippy configuration file. msrv = "1.30.0" ``` -The MSRV can also be specified as an inner attribute, like below. +The MSRV can also be specified as an attribute, like below. ```rust #![feature(custom_inner_attributes)] diff --git a/src/tools/clippy/book/src/development/adding_lints.md b/src/tools/clippy/book/src/development/adding_lints.md index 3c3f368a529..8b4eee8c9d9 100644 --- a/src/tools/clippy/book/src/development/adding_lints.md +++ b/src/tools/clippy/book/src/development/adding_lints.md @@ -443,27 +443,27 @@ value is passed to the constructor in `clippy_lints/lib.rs`. ```rust pub struct ManualStrip { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl ManualStrip { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } ``` The project's MSRV can then be matched against the feature MSRV in the LintPass -using the `meets_msrv` utility function. +using the `Msrv::meets` method. ``` rust -if !meets_msrv(self.msrv, msrvs::STR_STRIP_PREFIX) { +if !self.msrv.meets(msrvs::STR_STRIP_PREFIX) { return; } ``` -The project's MSRV can also be specified as an inner attribute, which overrides +The project's MSRV can also be specified as an attribute, which overrides the value from `clippy.toml`. This can be accounted for using the `extract_msrv_attr!(LintContext)` macro and passing `LateContext`/`EarlyContext`. @@ -483,19 +483,15 @@ have a case for the version below the MSRV and one with the same contents but for the MSRV version itself. ```rust -#![feature(custom_inner_attributes)] - ... +#[clippy::msrv = "1.44"] fn msrv_1_44() { - #![clippy::msrv = "1.44"] - /* something that would trigger the lint */ } +#[clippy::msrv = "1.45"] fn msrv_1_45() { - #![clippy::msrv = "1.45"] - /* something that would trigger the lint */ } ``` diff --git a/src/tools/clippy/book/src/development/proposals/syntax-tree-patterns.md b/src/tools/clippy/book/src/development/proposals/syntax-tree-patterns.md new file mode 100644 index 00000000000..c5587c4bf90 --- /dev/null +++ b/src/tools/clippy/book/src/development/proposals/syntax-tree-patterns.md @@ -0,0 +1,986 @@ +- Feature Name: syntax-tree-patterns +- Start Date: 2019-03-12 +- RFC PR: [#3875](https://github.com/rust-lang/rust-clippy/pull/3875) + +# Summary + +Introduce a domain-specific language (similar to regular expressions) that +allows to describe lints using *syntax tree patterns*. + + +# Motivation + +Finding parts of a syntax tree (AST, HIR, ...) that have certain properties +(e.g. "*an if that has a block as its condition*") is a major task when writing +lints. For non-trivial lints, it often requires nested pattern matching of AST / +HIR nodes. For example, testing that an expression is a boolean literal requires +the following checks: + +```rust +if let ast::ExprKind::Lit(lit) = &expr.node { + if let ast::LitKind::Bool(_) = &lit.node { + ... + } +} +``` + +Writing this kind of matching code quickly becomes a complex task and the +resulting code is often hard to comprehend. The code below shows a simplified +version of the pattern matching required by the `collapsible_if` lint: + +```rust +// simplified version of the collapsible_if lint +if let ast::ExprKind::If(check, then, None) = &expr.node { + if then.stmts.len() == 1 { + if let ast::StmtKind::Expr(inner) | ast::StmtKind::Semi(inner) = &then.stmts[0].node { + if let ast::ExprKind::If(check_inner, content, None) = &inner.node { + ... + } + } + } +} +``` + +The `if_chain` macro can improve readability by flattening the nested if +statements, but the resulting code is still quite hard to read: + +```rust +// simplified version of the collapsible_if lint +if_chain! { + if let ast::ExprKind::If(check, then, None) = &expr.node; + if then.stmts.len() == 1; + if let ast::StmtKind::Expr(inner) | ast::StmtKind::Semi(inner) = &then.stmts[0].node; + if let ast::ExprKind::If(check_inner, content, None) = &inner.node; + then { + ... + } +} +``` + +The code above matches if expressions that contain only another if expression +(where both ifs don't have an else branch). While it's easy to explain what the +lint does, it's hard to see that from looking at the code samples above. + +Following the motivation above, the first goal this RFC is to **simplify writing +and reading lints**. + +The second part of the motivation is clippy's dependence on unstable +compiler-internal data structures. Clippy lints are currently written against +the compiler's AST / HIR which means that even small changes in these data +structures might break a lot of lints. The second goal of this RFC is to **make +lints independant of the compiler's AST / HIR data structures**. + +# Approach + +A lot of complexity in writing lints currently seems to come from having to +manually implement the matching logic (see code samples above). It's an +imparative style that describes *how* to match a syntax tree node instead of +specifying *what* should be matched against declaratively. In other areas, it's +common to use declarative patterns to describe desired information and let the +implementation do the actual matching. A well-known example of this approach are +[regular expressions](https://en.wikipedia.org/wiki/Regular_expression). Instead +of writing code that detects certain character sequences, one can describe a +search pattern using a domain-specific language and search for matches using +that pattern. The advantage of using a declarative domain-specific language is +that its limited domain (e.g. matching character sequences in the case of +regular expressions) allows to express entities in that domain in a very natural +and expressive way. + +While regular expressions are very useful when searching for patterns in flat +character sequences, they cannot easily be applied to hierarchical data +structures like syntax trees. This RFC therefore proposes a pattern matching +system that is inspired by regular expressions and designed for hierarchical +syntax trees. + +# Guide-level explanation + +This proposal adds a `pattern!` macro that can be used to specify a syntax tree +pattern to search for. A simple pattern is shown below: + +```rust +pattern!{ + my_pattern: Expr = + Lit(Bool(false)) +} +``` + +This macro call defines a pattern named `my_pattern` that can be matched against +an `Expr` syntax tree node. The actual pattern (`Lit(Bool(false))` in this case) +defines which syntax trees should match the pattern. This pattern matches +expressions that are boolean literals with value `false`. + +The pattern can then be used to implement lints in the following way: + +```rust +... + +impl EarlyLintPass for MyAwesomeLint { + fn check_expr(&mut self, cx: &EarlyContext, expr: &syntax::ast::Expr) { + + if my_pattern(expr).is_some() { + cx.span_lint( + MY_AWESOME_LINT, + expr.span, + "This is a match for a simple pattern. Well done!", + ); + } + + } +} +``` + +The `pattern!` macro call expands to a function `my_pattern` that expects a +syntax tree expression as its argument and returns an `Option` that indicates +whether the pattern matched. + +> Note: The result type is explained in more detail in [a later +> section](#the-result-type). For now, it's enough to know that the result is +> `Some` if the pattern matched and `None` otherwise. + +## Pattern syntax + +The following examples demonstate the pattern syntax: + + +#### Any (`_`) + +The simplest pattern is the any pattern. It matches anything and is therefore +similar to regex's `*`. + +```rust +pattern!{ + // matches any expression + my_pattern: Expr = + _ +} +``` + +#### Node (`<node-name>(<args>)`) + +Nodes are used to match a specific variant of an AST node. A node has a name and +a number of arguments that depends on the node type. For example, the `Lit` node +has a single argument that describes the type of the literal. As another +example, the `If` node has three arguments describing the if's condition, then +block and else block. + +```rust +pattern!{ + // matches any expression that is a literal + my_pattern: Expr = + Lit(_) +} + +pattern!{ + // matches any expression that is a boolean literal + my_pattern: Expr = + Lit(Bool(_)) +} + +pattern!{ + // matches if expressions that have a boolean literal in their condition + // Note: The `_?` syntax here means that the else branch is optional and can be anything. + // This is discussed in more detail in the section `Repetition`. + my_pattern: Expr = + If( Lit(Bool(_)) , _, _?) +} +``` + + +#### Literal (`<lit>`) + +A pattern can also contain Rust literals. These literals match themselves. + +```rust +pattern!{ + // matches the boolean literal false + my_pattern: Expr = + Lit(Bool(false)) +} + +pattern!{ + // matches the character literal 'x' + my_pattern: Expr = + Lit(Char('x')) +} +``` + +#### Alternations (`a | b`) + +```rust +pattern!{ + // matches if the literal is a boolean or integer literal + my_pattern: Lit = + Bool(_) | Int(_) +} + +pattern!{ + // matches if the expression is a char literal with value 'x' or 'y' + my_pattern: Expr = + Lit( Char('x' | 'y') ) +} +``` + +#### Empty (`()`) + +The empty pattern represents an empty sequence or the `None` variant of an +optional. + +```rust +pattern!{ + // matches if the expression is an empty array + my_pattern: Expr = + Array( () ) +} + +pattern!{ + // matches if expressions that don't have an else clause + my_pattern: Expr = + If(_, _, ()) +} +``` + +#### Sequence (`<a> <b>`) + +```rust +pattern!{ + // matches the array [true, false] + my_pattern: Expr = + Array( Lit(Bool(true)) Lit(Bool(false)) ) +} +``` + +#### Repetition (`<a>*`, `<a>+`, `<a>?`, `<a>{n}`, `<a>{n,m}`, `<a>{n,}`) + +Elements may be repeated. The syntax for specifying repetitions is identical to +[regex's syntax](https://docs.rs/regex/1.1.2/regex/#repetitions). + +```rust +pattern!{ + // matches arrays that contain 2 'x's as their last or second-last elements + // Examples: + // ['x', 'x'] match + // ['x', 'x', 'y'] match + // ['a', 'b', 'c', 'x', 'x', 'y'] match + // ['x', 'x', 'y', 'z'] no match + my_pattern: Expr = + Array( _* Lit(Char('x')){2} _? ) +} + +pattern!{ + // matches if expressions that **may or may not** have an else block + // Attn: `If(_, _, _)` matches only ifs that **have** an else block + // + // | if with else block | if witout else block + // If(_, _, _) | match | no match + // If(_, _, _?) | match | match + // If(_, _, ()) | no match | match + my_pattern: Expr = + If(_, _, _?) +} +``` + +#### Named submatch (`<a>#<name>`) + +```rust +pattern!{ + // matches character literals and gives the literal the name foo + my_pattern: Expr = + Lit(Char(_)#foo) +} + +pattern!{ + // matches character literals and gives the char the name bar + my_pattern: Expr = + Lit(Char(_#bar)) +} + +pattern!{ + // matches character literals and gives the expression the name baz + my_pattern: Expr = + Lit(Char(_))#baz +} +``` + +The reason for using named submatches is described in the section [The result +type](#the-result-type). + +### Summary + +The following table gives an summary of the pattern syntax: + +| Syntax | Concept | Examples | +|-------------------------|------------------|--------------------------------------------| +|`_` | Any | `_` | +|`<node-name>(<args>)` | Node | `Lit(Bool(true))`, `If(_, _, _)` | +|`<lit>` | Literal | `'x'`, `false`, `101` | +|`<a> \| <b>` | Alternation | `Char(_) \| Bool(_)` | +|`()` | Empty | `Array( () )` | +|`<a> <b>` | Sequence | `Tuple( Lit(Bool(_)) Lit(Int(_)) Lit(_) )` | +|`<a>*` <br> `<a>+` <br> `<a>?` <br> `<a>{n}` <br> `<a>{n,m}` <br> `<a>{n,}` | Repetition <br> <br> <br> <br> <br><br> | `Array( _* )`, <br> `Block( Semi(_)+ )`, <br> `If(_, _, Block(_)?)`, <br> `Array( Lit(_){10} )`, <br> `Lit(_){5,10}`, <br> `Lit(Bool(_)){10,}` | +|`<a>#<name>` | Named submatch | `Lit(Int(_))#foo` `Lit(Int(_#bar))` | + + +## The result type + +A lot of lints require checks that go beyond what the pattern syntax described +above can express. For example, a lint might want to check whether a node was +created as part of a macro expansion or whether there's no comment above a node. +Another example would be a lint that wants to match two nodes that have the same +value (as needed by lints like `almost_swapped`). Instead of allowing users to +write these checks into the pattern directly (which might make patterns hard to +read), the proposed solution allows users to assign names to parts of a pattern +expression. When matching a pattern against a syntax tree node, the return value +will contain references to all nodes that were matched by these named +subpatterns. This is similar to capture groups in regular expressions. + +For example, given the following pattern + +```rust +pattern!{ + // matches character literals + my_pattern: Expr = + Lit(Char(_#val_inner)#val)#val_outer +} +``` + +one could get references to the nodes that matched the subpatterns in the +following way: + +```rust +... +fn check_expr(expr: &syntax::ast::Expr) { + if let Some(result) = my_pattern(expr) { + result.val_inner // type: &char + result.val // type: &syntax::ast::Lit + result.val_outer // type: &syntax::ast::Expr + } +} +``` + +The types in the `result` struct depend on the pattern. For example, the +following pattern + +```rust +pattern!{ + // matches arrays of character literals + my_pattern_seq: Expr = + Array( Lit(_)*#foo ) +} +``` + +matches arrays that consist of any number of literal expressions. Because those +expressions are named `foo`, the result struct contains a `foo` attribute which +is a vector of expressions: + +```rust +... +if let Some(result) = my_pattern_seq(expr) { + result.foo // type: Vec<&syntax::ast::Expr> +} +``` + +Another result type occurs when a name is only defined in one branch of an +alternation: + +```rust +pattern!{ + // matches if expression is a boolean or integer literal + my_pattern_alt: Expr = + Lit( Bool(_#bar) | Int(_) ) +} +``` + +In the pattern above, the `bar` name is only defined if the pattern matches a +boolean literal. If it matches an integer literal, the name isn't set. To +account for this, the result struct's `bar` attribute is an option type: + +```rust +... +if let Some(result) = my_pattern_alt(expr) { + result.bar // type: Option<&bool> +} +``` + +It's also possible to use a name in multiple alternation branches if they have +compatible types: + +```rust +pattern!{ + // matches if expression is a boolean or integer literal + my_pattern_mult: Expr = + Lit(_#baz) | Array( Lit(_#baz) ) +} +... +if let Some(result) = my_pattern_mult(expr) { + result.baz // type: &syntax::ast::Lit +} +``` + +Named submatches are a **flat** namespace and this is intended. In the example +above, two different sub-structures are assigned to a flat name. I expect that +for most lints, a flat namespace is sufficient and easier to work with than a +hierarchical one. + +#### Two stages + +Using named subpatterns, users can write lints in two stages. First, a coarse +selection of possible matches is produced by the pattern syntax. In the second +stage, the named subpattern references can be used to do additional tests like +asserting that a node hasn't been created as part of a macro expansion. + +## Implementing clippy lints using patterns + +As a "real-world" example, I re-implemented the `collapsible_if` lint using +patterns. The code can be found +[here](https://github.com/fkohlgrueber/rust-clippy-pattern/blob/039b07ecccaf96d6aa7504f5126720d2c9cceddd/clippy_lints/src/collapsible_if.rs#L88-L163). +The pattern-based version passes all test cases that were written for +`collapsible_if`. + + +# Reference-level explanation + +## Overview + +The following diagram shows the dependencies between the main parts of the +proposed solution: + +``` + Pattern syntax + | + | parsing / lowering + v + PatternTree + ^ + | + | + IsMatch trait + | + | + +---------------+-----------+---------+ + | | | | + v v v v + syntax::ast rustc::hir syn ... +``` + +The pattern syntax described in the previous section is parsed / lowered into +the so-called *PatternTree* data structure that represents a valid syntax tree +pattern. Matching a *PatternTree* against an actual syntax tree (e.g. rust ast / +hir or the syn ast, ...) is done using the *IsMatch* trait. + +The *PatternTree* and the *IsMatch* trait are introduced in more detail in the +following sections. + +## PatternTree + +The core data structure of this RFC is the **PatternTree**. + +It's a data structure similar to rust's AST / HIR, but with the following +differences: + +- The PatternTree doesn't contain parsing information like `Span`s +- The PatternTree can represent alternatives, sequences and optionals + +The code below shows a simplified version of the current PatternTree: + +> Note: The current implementation can be found +> [here](https://github.com/fkohlgrueber/pattern-matching/blob/dfb3bc9fbab69cec7c91e72564a63ebaa2ede638/pattern-match/src/pattern_tree.rs#L50-L96). + + +```rust +pub enum Expr { + Lit(Alt<Lit>), + Array(Seq<Expr>), + Block_(Alt<BlockType>), + If(Alt<Expr>, Alt<BlockType>, Opt<Expr>), + IfLet( + Alt<BlockType>, + Opt<Expr>, + ), +} + +pub enum Lit { + Char(Alt<char>), + Bool(Alt<bool>), + Int(Alt<u128>), +} + +pub enum Stmt { + Expr(Alt<Expr>), + Semi(Alt<Expr>), +} + +pub enum BlockType { + Block(Seq<Stmt>), +} +``` + +The `Alt`, `Seq` and `Opt` structs look like these: + +> Note: The current implementation can be found +> [here](https://github.com/fkohlgrueber/pattern-matching/blob/dfb3bc9fbab69cec7c91e72564a63ebaa2ede638/pattern-match/src/matchers.rs#L35-L60). + +```rust +pub enum Alt<T> { + Any, + Elmt(Box<T>), + Alt(Box<Self>, Box<Self>), + Named(Box<Self>, ...) +} + +pub enum Opt<T> { + Any, // anything, but not None + Elmt(Box<T>), + None, + Alt(Box<Self>, Box<Self>), + Named(Box<Self>, ...) +} + +pub enum Seq<T> { + Any, + Empty, + Elmt(Box<T>), + Repeat(Box<Self>, RepeatRange), + Seq(Box<Self>, Box<Self>), + Alt(Box<Self>, Box<Self>), + Named(Box<Self>, ...) +} + +pub struct RepeatRange { + pub start: usize, + pub end: Option<usize> // exclusive +} +``` + +## Parsing / Lowering + +The input of a `pattern!` macro call is parsed into a `ParseTree` first and then +lowered to a `PatternTree`. + +Valid patterns depend on the *PatternTree* definitions. For example, the pattern +`Lit(Bool(_)*)` isn't valid because the parameter type of the `Lit` variant of +the `Expr` enum is `Any<Lit>` and therefore doesn't support repetition (`*`). As +another example, `Array( Lit(_)* )` is a valid pattern because the parameter of +`Array` is of type `Seq<Expr>` which allows sequences and repetitions. + +> Note: names in the pattern syntax correspond to *PatternTree* enum +> **variants**. For example, the `Lit` in the pattern above refers to the `Lit` +> variant of the `Expr` enum (`Expr::Lit`), not the `Lit` enum. + +## The IsMatch Trait + +The pattern syntax and the *PatternTree* are independant of specific syntax tree +implementations (rust ast / hir, syn, ...). When looking at the different +pattern examples in the previous sections, it can be seen that the patterns +don't contain any information specific to a certain syntax tree implementation. +In contrast, clippy lints currently match against ast / hir syntax tree nodes +and therefore directly depend on their implementation. + +The connection between the *PatternTree* and specific syntax tree +implementations is the `IsMatch` trait. It defines how to match *PatternTree* +nodes against specific syntax tree nodes. A simplified implementation of the +`IsMatch` trait is shown below: + +```rust +pub trait IsMatch<O> { + fn is_match(&self, other: &'o O) -> bool; +} +``` + +This trait needs to be implemented on each enum of the *PatternTree* (for the +corresponding syntax tree types). For example, the `IsMatch` implementation for +matching `ast::LitKind` against the *PatternTree's* `Lit` enum might look like +this: + +```rust +impl IsMatch<ast::LitKind> for Lit { + fn is_match(&self, other: &ast::LitKind) -> bool { + match (self, other) { + (Lit::Char(i), ast::LitKind::Char(j)) => i.is_match(j), + (Lit::Bool(i), ast::LitKind::Bool(j)) => i.is_match(j), + (Lit::Int(i), ast::LitKind::Int(j, _)) => i.is_match(j), + _ => false, + } + } +} +``` + +All `IsMatch` implementations for matching the current *PatternTree* against +`syntax::ast` can be found +[here](https://github.com/fkohlgrueber/pattern-matching/blob/dfb3bc9fbab69cec7c91e72564a63ebaa2ede638/pattern-match/src/ast_match.rs). + + +# Drawbacks + +#### Performance + +The pattern matching code is currently not optimized for performance, so it +might be slower than hand-written matching code. Additionally, the two-stage +approach (matching against the coarse pattern first and checking for additional +properties later) might be slower than the current practice of checking for +structure and additional properties in one pass. For example, the following lint + +```rust +pattern!{ + pat_if_without_else: Expr = + If( + _, + Block( + Expr( If(_, _, ())#inner ) + | Semi( If(_, _, ())#inner ) + )#then, + () + ) +} +... +fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &ast::Expr) { + if let Some(result) = pat_if_without_else(expr) { + if !block_starts_with_comment(cx, result.then) { + ... + } +} +``` + +first matches against the pattern and then checks that the `then` block doesn't +start with a comment. Using clippy's current approach, it's possible to check +for these conditions earlier: + +```rust +fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &ast::Expr) { + if_chain! { + if let ast::ExprKind::If(ref check, ref then, None) = expr.node; + if !block_starts_with_comment(cx, then); + if let Some(inner) = expr_block(then); + if let ast::ExprKind::If(ref check_inner, ref content, None) = inner.node; + then { + ... + } + } +} +``` + +Whether or not this causes performance regressions depends on actual patterns. +If it turns out to be a problem, the pattern matching algorithms could be +extended to allow "early filtering" (see the [Early Filtering](#early-filtering) +section in Future Possibilities). + +That being said, I don't see any conceptual limitations regarding pattern +matching performance. + +#### Applicability + +Even though I'd expect that a lot of lints can be written using the proposed +pattern syntax, it's unlikely that all lints can be expressed using patterns. I +suspect that there will still be lints that need to be implemented by writing +custom pattern matching code. This would lead to mix within clippy's codebase +where some lints are implemented using patterns and others aren't. This +inconsistency might be considered a drawback. + + +# Rationale and alternatives + +Specifying lints using syntax tree patterns has a couple of advantages compared +to the current approach of manually writing matching code. First, syntax tree +patterns allow users to describe patterns in a simple and expressive way. This +makes it easier to write new lints for both novices and experts and also makes +reading / modifying existing lints simpler. + +Another advantage is that lints are independent of specific syntax tree +implementations (e.g. AST / HIR, ...). When these syntax tree implementations +change, only the `IsMatch` trait implementations need to be adapted and existing +lints can remain unchanged. This also means that if the `IsMatch` trait +implementations were integrated into the compiler, updating the `IsMatch` +implementations would be required for the compiler to compile successfully. This +could reduce the number of times clippy breaks because of changes in the +compiler. Another advantage of the pattern's independence is that converting an +`EarlyLintPass` lint into a `LatePassLint` wouldn't require rewriting the whole +pattern matching code. In fact, the pattern might work just fine without any +adaptions. + + +## Alternatives + +### Rust-like pattern syntax + +The proposed pattern syntax requires users to know the structure of the +`PatternTree` (which is very similar to the AST's / HIR's structure) and also +the pattern syntax. An alternative would be to introduce a pattern syntax that +is similar to actual Rust syntax (probably like the `quote!` macro). For +example, a pattern that matches `if` expressions that have `false` in their +condition could look like this: + +```rust +if false { + #[*] +} +``` + +#### Problems + +Extending Rust syntax (which is quite complex by itself) with additional syntax +needed for specifying patterns (alternations, sequences, repetisions, named +submatches, ...) might become difficult to read and really hard to parse +properly. + +For example, a pattern that matches a binary operation that has `0` on both +sides might look like this: + +``` +0 #[*:BinOpKind] 0 +``` + +Now consider this slightly more complex example: + +``` +1 + 0 #[*:BinOpKind] 0 +``` + +The parser would need to know the precedence of `#[*:BinOpKind]` because it +affects the structure of the resulting AST. `1 + 0 + 0` is parsed as `(1 + 0) + +0` while `1 + 0 * 0` is parsed as `1 + (0 * 0)`. Since the pattern could be any +`BinOpKind`, the precedence cannot be known in advance. + +Another example of a problem would be named submatches. Take a look at this +pattern: + +```rust +fn test() { + 1 #foo +} +``` + +Which node is `#foo` referring to? `int`, `ast::Lit`, `ast::Expr`, `ast::Stmt`? +Naming subpatterns in a rust-like syntax is difficult because a lot of AST nodes +don't have a syntactic element that can be used to put the name tag on. In these +situations, the only sensible option would be to assign the name tag to the +outermost node (`ast::Stmt` in the example above), because the information of +all child nodes can be retrieved through the outermost node. The problem with +this then would be that accessing inner nodes (like `ast::Lit`) would again +require manual pattern matching. + +In general, Rust syntax contains a lot of code structure implicitly. This +structure is reconstructed during parsing (e.g. binary operations are +reconstructed using operator precedence and left-to-right) and is one of the +reasons why parsing is a complex task. The advantage of this approach is that +writing code is simpler for users. + +When writing *syntax tree patterns*, each element of the hierarchy might have +alternatives, repetitions, etc.. Respecting that while still allowing +human-friendly syntax that contains structure implicitly seems to be really +complex, if not impossible. + +Developing such a syntax would also require to maintain a custom parser that is +at least as complex as the Rust parser itself. Additionally, future changes in +the Rust syntax might be incompatible with such a syntax. + +In summary, I think that developing such a syntax would introduce a lot of +complexity to solve a relatively minor problem. + +The issue of users not knowing about the *PatternTree* structure could be solved +by a tool that, given a rust program, generates a pattern that matches only this +program (similar to the clippy author lint). + +For some simple cases (like the first example above), it might be possible to +successfully mix Rust and pattern syntax. This space could be further explored +in a future extension. + +# Prior art + +The pattern syntax is heavily inspired by regular expressions (repetitions, +alternatives, sequences, ...). + +From what I've seen until now, other linters also implement lints that directly +work on syntax tree data structures, just like clippy does currently. I would +therefore consider the pattern syntax to be *new*, but please correct me if I'm +wrong. + +# Unresolved questions + +#### How to handle multiple matches? + +When matching a syntax tree node against a pattern, there are possibly multiple +ways in which the pattern can be matched. A simple example of this would be the +following pattern: + +```rust +pattern!{ + my_pattern: Expr = + Array( _* Lit(_)+#literals) +} +``` + +This pattern matches arrays that end with at least one literal. Now given the +array `[x, 1, 2]`, should `1` be matched as part of the `_*` or the `Lit(_)+` +part of the pattern? The difference is important because the named submatch +`#literals` would contain 1 or 2 elements depending how the pattern is matched. +In regular expressions, this problem is solved by matching "greedy" by default +and "non-greedy" optionally. + +I haven't looked much into this yet because I don't know how relevant it is for +most lints. The current implementation simply returns the first match it finds. + +# Future possibilities + +#### Implement rest of Rust Syntax + +The current project only implements a small part of the Rust syntax. In the +future, this should incrementally be extended to more syntax to allow +implementing more lints. Implementing more of the Rust syntax requires extending +the `PatternTree` and `IsMatch` implementations, but should be relatively +straight-forward. + +#### Early filtering + +As described in the *Drawbacks/Performance* section, allowing additional checks +during the pattern matching might be beneficial. + +The pattern below shows how this could look like: + +```rust +pattern!{ + pat_if_without_else: Expr = + If( + _, + Block( + Expr( If(_, _, ())#inner ) + | Semi( If(_, _, ())#inner ) + )#then, + () + ) + where + !in_macro(#then.span); +} +``` + +The difference compared to the currently proposed two-stage filtering is that +using early filtering, the condition (`!in_macro(#then.span)` in this case) +would be evaluated as soon as the `Block(_)#then` was matched. + +Another idea in this area would be to introduce a syntax for backreferences. +They could be used to require that multiple parts of a pattern should match the +same value. For example, the `assign_op_pattern` lint that searches for `a = a +op b` and recommends changing it to `a op= b` requires that both occurrances of +`a` are the same. Using `=#...` as syntax for backreferences, the lint could be +implemented like this: + +```rust +pattern!{ + assign_op_pattern: Expr = + Assign(_#target, Binary(_, =#target, _) +} +``` + +#### Match descendant + +A lot of lints currently implement custom visitors that check whether any +subtree (which might not be a direct descendant) of the current node matches +some properties. This cannot be expressed with the proposed pattern syntax. +Extending the pattern syntax to allow patterns like "a function that contains at +least two return statements" could be a practical addition. + +#### Negation operator for alternatives + +For patterns like "a literal that is not a boolean literal" one currently needs +to list all alternatives except the boolean case. Introducing a negation +operator that allows to write `Lit(!Bool(_))` might be a good idea. This pattern +would be eqivalent to `Lit( Char(_) | Int(_) )` (given that currently only three +literal types are implemented). + +#### Functional composition + +Patterns currently don't have any concept of composition. This leads to +repetitions within patterns. For example, one of the collapsible-if patterns +currently has to be written like this: + +```rust +pattern!{ + pat_if_else: Expr = + If( + _, + _, + Block_( + Block( + Expr((If(_, _, _?) | IfLet(_, _?))#else_) | + Semi((If(_, _, _?) | IfLet(_, _?))#else_) + )#block_inner + )#block + ) | + IfLet( + _, + Block_( + Block( + Expr((If(_, _, _?) | IfLet(_, _?))#else_) | + Semi((If(_, _, _?) | IfLet(_, _?))#else_) + )#block_inner + )#block + ) +} +``` + +If patterns supported defining functions of subpatterns, the code could be +simplified as follows: + +```rust +pattern!{ + fn expr_or_semi(expr: Expr) -> Stmt { + Expr(expr) | Semi(expr) + } + fn if_or_if_let(then: Block, else: Opt<Expr>) -> Expr { + If(_, then, else) | IfLet(then, else) + } + pat_if_else: Expr = + if_or_if_let( + _, + Block_( + Block( + expr_or_semi( if_or_if_let(_, _?)#else_ ) + )#block_inner + )#block + ) +} +``` + +Additionally, common patterns like `expr_or_semi` could be shared between +different lints. + +#### Clippy Pattern Author + +Another improvement could be to create a tool that, given some valid Rust +syntax, generates a pattern that matches this syntax exactly. This would make +starting to write a pattern easier. A user could take a look at the patterns +generated for a couple of Rust code examples and use that information to write a +pattern that matches all of them. + +This is similar to clippy's author lint. + +#### Supporting other syntaxes + +Most of the proposed system is language-agnostic. For example, the pattern +syntax could also be used to describe patterns for other programming languages. + +In order to support other languages' syntaxes, one would need to implement +another `PatternTree` that sufficiently describes the languages' AST and +implement `IsMatch` for this `PatternTree` and the languages' AST. + +One aspect of this is that it would even be possible to write lints that work on +the pattern syntax itself. For example, when writing the following pattern + + +```rust +pattern!{ + my_pattern: Expr = + Array( Lit(Bool(false)) Lit(Bool(false)) ) +} +``` + +a lint that works on the pattern syntax's AST could suggest using this pattern +instead: + +```rust +pattern!{ + my_pattern: Expr = + Array( Lit(Bool(false)){2} ) +} +``` + +In the future, clippy could use this system to also provide lints for custom +syntaxes like those found in macros. diff --git a/src/tools/clippy/clippy_dev/src/new_lint.rs b/src/tools/clippy/clippy_dev/src/new_lint.rs index 9e15f1504fa..ec7f1dd0d84 100644 --- a/src/tools/clippy/clippy_dev/src/new_lint.rs +++ b/src/tools/clippy/clippy_dev/src/new_lint.rs @@ -120,7 +120,7 @@ fn add_lint(lint: &LintData<'_>, enable_msrv: bool) -> io::Result<()> { let new_lint = if enable_msrv { format!( - "store.register_{lint_pass}_pass(move |{ctor_arg}| Box::new({module_name}::{camel_name}::new(msrv)));\n ", + "store.register_{lint_pass}_pass(move |{ctor_arg}| Box::new({module_name}::{camel_name}::new(msrv())));\n ", lint_pass = lint.pass, ctor_arg = if lint.pass == "late" { "_" } else { "" }, module_name = lint.name, @@ -238,10 +238,9 @@ fn get_lint_file_contents(lint: &LintData<'_>, enable_msrv: bool) -> String { result.push_str(&if enable_msrv { formatdoc!( r#" - use clippy_utils::msrvs; + use clippy_utils::msrvs::{{self, Msrv}}; {pass_import} use rustc_lint::{{{context_import}, {pass_type}, LintContext}}; - use rustc_semver::RustcVersion; use rustc_session::{{declare_tool_lint, impl_lint_pass}}; "# @@ -263,12 +262,12 @@ fn get_lint_file_contents(lint: &LintData<'_>, enable_msrv: bool) -> String { formatdoc!( r#" pub struct {name_camel} {{ - msrv: Option<RustcVersion>, + msrv: Msrv, }} impl {name_camel} {{ #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self {{ + pub fn new(msrv: Msrv) -> Self {{ Self {{ msrv }} }} }} @@ -357,15 +356,14 @@ fn create_lint_for_ty(lint: &LintData<'_>, enable_msrv: bool, ty: &str) -> io::R let _ = writedoc!( lint_file_contents, r#" - use clippy_utils::{{meets_msrv, msrvs}}; + use clippy_utils::msrvs::{{self, Msrv}}; use rustc_lint::{{{context_import}, LintContext}}; - use rustc_semver::RustcVersion; use super::{name_upper}; // TODO: Adjust the parameters as necessary - pub(super) fn check(cx: &{context_import}, msrv: Option<RustcVersion>) {{ - if !meets_msrv(msrv, todo!("Add a new entry in `clippy_utils/src/msrvs`")) {{ + pub(super) fn check(cx: &{context_import}, msrv: &Msrv) {{ + if !msrv.meets(todo!("Add a new entry in `clippy_utils/src/msrvs`")) {{ return; }} todo!(); diff --git a/src/tools/clippy/clippy_lints/src/almost_complete_letter_range.rs b/src/tools/clippy/clippy_lints/src/almost_complete_letter_range.rs index df92579a85d..52beaf504a4 100644 --- a/src/tools/clippy/clippy_lints/src/almost_complete_letter_range.rs +++ b/src/tools/clippy/clippy_lints/src/almost_complete_letter_range.rs @@ -1,11 +1,10 @@ use clippy_utils::diagnostics::span_lint_and_then; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::{trim_span, walk_span_to_context}; -use clippy_utils::{meets_msrv, msrvs}; use rustc_ast::ast::{Expr, ExprKind, LitKind, Pat, PatKind, RangeEnd, RangeLimits}; use rustc_errors::Applicability; use rustc_lint::{EarlyContext, EarlyLintPass, LintContext}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::Span; @@ -33,10 +32,10 @@ declare_clippy_lint! { impl_lint_pass!(AlmostCompleteLetterRange => [ALMOST_COMPLETE_LETTER_RANGE]); pub struct AlmostCompleteLetterRange { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl AlmostCompleteLetterRange { - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -46,7 +45,7 @@ impl EarlyLintPass for AlmostCompleteLetterRange { let ctxt = e.span.ctxt(); let sugg = if let Some(start) = walk_span_to_context(start.span, ctxt) && let Some(end) = walk_span_to_context(end.span, ctxt) - && meets_msrv(self.msrv, msrvs::RANGE_INCLUSIVE) + && self.msrv.meets(msrvs::RANGE_INCLUSIVE) { Some((trim_span(cx.sess().source_map(), start.between(end)), "..=")) } else { @@ -60,7 +59,7 @@ impl EarlyLintPass for AlmostCompleteLetterRange { if let PatKind::Range(Some(start), Some(end), kind) = &p.kind && matches!(kind.node, RangeEnd::Excluded) { - let sugg = if meets_msrv(self.msrv, msrvs::RANGE_INCLUSIVE) { + let sugg = if self.msrv.meets(msrvs::RANGE_INCLUSIVE) { "..=" } else { "..." diff --git a/src/tools/clippy/clippy_lints/src/approx_const.rs b/src/tools/clippy/clippy_lints/src/approx_const.rs index 724490fb495..ccf82f132f4 100644 --- a/src/tools/clippy/clippy_lints/src/approx_const.rs +++ b/src/tools/clippy/clippy_lints/src/approx_const.rs @@ -1,5 +1,5 @@ use clippy_utils::diagnostics::span_lint_and_help; -use clippy_utils::{meets_msrv, msrvs}; +use clippy_utils::msrvs::{self, Msrv}; use rustc_ast::ast::{FloatTy, LitFloatType, LitKind}; use rustc_hir::{Expr, ExprKind}; use rustc_lint::{LateContext, LateLintPass}; @@ -63,12 +63,12 @@ const KNOWN_CONSTS: [(f64, &str, usize, Option<RustcVersion>); 19] = [ ]; pub struct ApproxConstant { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl ApproxConstant { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } @@ -87,7 +87,7 @@ impl ApproxConstant { let s = s.as_str(); if s.parse::<f64>().is_ok() { for &(constant, name, min_digits, msrv) in &KNOWN_CONSTS { - if is_approx_const(constant, s, min_digits) && msrv.map_or(true, |msrv| meets_msrv(self.msrv, msrv)) { + if is_approx_const(constant, s, min_digits) && msrv.map_or(true, |msrv| self.msrv.meets(msrv)) { span_lint_and_help( cx, APPROX_CONSTANT, diff --git a/src/tools/clippy/clippy_lints/src/attrs.rs b/src/tools/clippy/clippy_lints/src/attrs.rs index 018f10f2588..0710ac0bb0a 100644 --- a/src/tools/clippy/clippy_lints/src/attrs.rs +++ b/src/tools/clippy/clippy_lints/src/attrs.rs @@ -2,9 +2,8 @@ use clippy_utils::diagnostics::{span_lint, span_lint_and_help, span_lint_and_sugg, span_lint_and_then}; use clippy_utils::macros::{is_panic, macro_backtrace}; -use clippy_utils::msrvs; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::{first_line_of_span, is_present_in_source, snippet_opt, without_block_comments}; -use clippy_utils::{extract_msrv_attr, meets_msrv}; use if_chain::if_chain; use rustc_ast::{AttrKind, AttrStyle, Attribute, LitKind, MetaItemKind, MetaItemLit, NestedMetaItem}; use rustc_errors::Applicability; @@ -14,7 +13,6 @@ use rustc_hir::{ use rustc_lint::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, Level, LintContext}; use rustc_middle::lint::in_external_macro; use rustc_middle::ty; -use rustc_semver::RustcVersion; use rustc_session::{declare_lint_pass, declare_tool_lint, impl_lint_pass}; use rustc_span::source_map::Span; use rustc_span::symbol::Symbol; @@ -599,7 +597,7 @@ fn is_word(nmi: &NestedMetaItem, expected: Symbol) -> bool { } pub struct EarlyAttributes { - pub msrv: Option<RustcVersion>, + pub msrv: Msrv, } impl_lint_pass!(EarlyAttributes => [ @@ -614,7 +612,7 @@ impl EarlyLintPass for EarlyAttributes { } fn check_attribute(&mut self, cx: &EarlyContext<'_>, attr: &Attribute) { - check_deprecated_cfg_attr(cx, attr, self.msrv); + check_deprecated_cfg_attr(cx, attr, &self.msrv); check_mismatched_target_os(cx, attr); } @@ -654,9 +652,9 @@ fn check_empty_line_after_outer_attr(cx: &EarlyContext<'_>, item: &rustc_ast::It } } -fn check_deprecated_cfg_attr(cx: &EarlyContext<'_>, attr: &Attribute, msrv: Option<RustcVersion>) { +fn check_deprecated_cfg_attr(cx: &EarlyContext<'_>, attr: &Attribute, msrv: &Msrv) { if_chain! { - if meets_msrv(msrv, msrvs::TOOL_ATTRIBUTES); + if msrv.meets(msrvs::TOOL_ATTRIBUTES); // check cfg_attr if attr.has_name(sym::cfg_attr); if let Some(items) = attr.meta_item_list(); diff --git a/src/tools/clippy/clippy_lints/src/casts/cast_abs_to_unsigned.rs b/src/tools/clippy/clippy_lints/src/casts/cast_abs_to_unsigned.rs index 3f1edabe6c5..44226298333 100644 --- a/src/tools/clippy/clippy_lints/src/casts/cast_abs_to_unsigned.rs +++ b/src/tools/clippy/clippy_lints/src/casts/cast_abs_to_unsigned.rs @@ -1,11 +1,10 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::sugg::Sugg; -use clippy_utils::{meets_msrv, msrvs}; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind}; use rustc_lint::LateContext; use rustc_middle::ty::{self, Ty}; -use rustc_semver::RustcVersion; use super::CAST_ABS_TO_UNSIGNED; @@ -15,9 +14,9 @@ pub(super) fn check( cast_expr: &Expr<'_>, cast_from: Ty<'_>, cast_to: Ty<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { - if meets_msrv(msrv, msrvs::UNSIGNED_ABS) + if msrv.meets(msrvs::UNSIGNED_ABS) && let ty::Int(from) = cast_from.kind() && let ty::Uint(to) = cast_to.kind() && let ExprKind::MethodCall(method_path, receiver, ..) = cast_expr.kind diff --git a/src/tools/clippy/clippy_lints/src/casts/cast_lossless.rs b/src/tools/clippy/clippy_lints/src/casts/cast_lossless.rs index 13c403234da..cf07e050ccc 100644 --- a/src/tools/clippy/clippy_lints/src/casts/cast_lossless.rs +++ b/src/tools/clippy/clippy_lints/src/casts/cast_lossless.rs @@ -1,12 +1,12 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::in_constant; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_opt; use clippy_utils::ty::is_isize_or_usize; -use clippy_utils::{in_constant, meets_msrv, msrvs}; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind}; use rustc_lint::LateContext; use rustc_middle::ty::{self, FloatTy, Ty}; -use rustc_semver::RustcVersion; use super::{utils, CAST_LOSSLESS}; @@ -16,7 +16,7 @@ pub(super) fn check( cast_op: &Expr<'_>, cast_from: Ty<'_>, cast_to: Ty<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { if !should_lint(cx, expr, cast_from, cast_to, msrv) { return; @@ -57,13 +57,7 @@ pub(super) fn check( ); } -fn should_lint( - cx: &LateContext<'_>, - expr: &Expr<'_>, - cast_from: Ty<'_>, - cast_to: Ty<'_>, - msrv: Option<RustcVersion>, -) -> bool { +fn should_lint(cx: &LateContext<'_>, expr: &Expr<'_>, cast_from: Ty<'_>, cast_to: Ty<'_>, msrv: &Msrv) -> bool { // Do not suggest using From in consts/statics until it is valid to do so (see #2267). if in_constant(cx, expr.hir_id) { return false; @@ -89,7 +83,7 @@ fn should_lint( }; !is_isize_or_usize(cast_from) && from_nbits < to_nbits }, - (false, true) if matches!(cast_from.kind(), ty::Bool) && meets_msrv(msrv, msrvs::FROM_BOOL) => true, + (false, true) if matches!(cast_from.kind(), ty::Bool) && msrv.meets(msrvs::FROM_BOOL) => true, (_, _) => { matches!(cast_from.kind(), ty::Float(FloatTy::F32)) && matches!(cast_to.kind(), ty::Float(FloatTy::F64)) }, diff --git a/src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs b/src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs index adbcfd3189b..a6376484914 100644 --- a/src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs +++ b/src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs @@ -118,12 +118,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, }; let to_nbits = utils::int_ty_to_nbits(cast_to, cx.tcx); - let cast_from_ptr_size = def.repr().int.map_or(true, |ty| { - matches!( - ty, - IntegerType::Pointer(_), - ) - }); + let cast_from_ptr_size = def.repr().int.map_or(true, |ty| matches!(ty, IntegerType::Pointer(_),)); let suffix = match (cast_from_ptr_size, is_isize_or_usize(cast_to)) { (false, false) if from_nbits > to_nbits => "", (true, false) if from_nbits > to_nbits => "", diff --git a/src/tools/clippy/clippy_lints/src/casts/cast_slice_different_sizes.rs b/src/tools/clippy/clippy_lints/src/casts/cast_slice_different_sizes.rs index d31d10d22b9..e862f13e69f 100644 --- a/src/tools/clippy/clippy_lints/src/casts/cast_slice_different_sizes.rs +++ b/src/tools/clippy/clippy_lints/src/casts/cast_slice_different_sizes.rs @@ -1,16 +1,16 @@ -use clippy_utils::{diagnostics::span_lint_and_then, meets_msrv, msrvs, source}; +use clippy_utils::msrvs::{self, Msrv}; +use clippy_utils::{diagnostics::span_lint_and_then, source}; use if_chain::if_chain; use rustc_ast::Mutability; use rustc_hir::{Expr, ExprKind, Node}; use rustc_lint::LateContext; use rustc_middle::ty::{self, layout::LayoutOf, Ty, TypeAndMut}; -use rustc_semver::RustcVersion; use super::CAST_SLICE_DIFFERENT_SIZES; -pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>, msrv: Option<RustcVersion>) { +pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>, msrv: &Msrv) { // suggestion is invalid if `ptr::slice_from_raw_parts` does not exist - if !meets_msrv(msrv, msrvs::PTR_SLICE_RAW_PARTS) { + if !msrv.meets(msrvs::PTR_SLICE_RAW_PARTS) { return; } diff --git a/src/tools/clippy/clippy_lints/src/casts/cast_slice_from_raw_parts.rs b/src/tools/clippy/clippy_lints/src/casts/cast_slice_from_raw_parts.rs index 284ef165998..627b795d6ed 100644 --- a/src/tools/clippy/clippy_lints/src/casts/cast_slice_from_raw_parts.rs +++ b/src/tools/clippy/clippy_lints/src/casts/cast_slice_from_raw_parts.rs @@ -1,12 +1,12 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_with_applicability; -use clippy_utils::{match_def_path, meets_msrv, msrvs, paths}; +use clippy_utils::{match_def_path, paths}; use if_chain::if_chain; use rustc_errors::Applicability; use rustc_hir::{def_id::DefId, Expr, ExprKind}; use rustc_lint::LateContext; use rustc_middle::ty::{self, Ty}; -use rustc_semver::RustcVersion; use super::CAST_SLICE_FROM_RAW_PARTS; @@ -25,15 +25,9 @@ fn raw_parts_kind(cx: &LateContext<'_>, did: DefId) -> Option<RawPartsKind> { } } -pub(super) fn check( - cx: &LateContext<'_>, - expr: &Expr<'_>, - cast_expr: &Expr<'_>, - cast_to: Ty<'_>, - msrv: Option<RustcVersion>, -) { +pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, cast_to: Ty<'_>, msrv: &Msrv) { if_chain! { - if meets_msrv(msrv, msrvs::PTR_SLICE_RAW_PARTS); + if msrv.meets(msrvs::PTR_SLICE_RAW_PARTS); if let ty::RawPtr(ptrty) = cast_to.kind(); if let ty::Slice(_) = ptrty.ty.kind(); if let ExprKind::Call(fun, [ptr_arg, len_arg]) = cast_expr.peel_blocks().kind; diff --git a/src/tools/clippy/clippy_lints/src/casts/mod.rs b/src/tools/clippy/clippy_lints/src/casts/mod.rs index 7148b5e6ebf..c6d505c4a18 100644 --- a/src/tools/clippy/clippy_lints/src/casts/mod.rs +++ b/src/tools/clippy/clippy_lints/src/casts/mod.rs @@ -21,11 +21,11 @@ mod ptr_as_ptr; mod unnecessary_cast; mod utils; -use clippy_utils::{is_hir_ty_cfg_dependant, meets_msrv, msrvs}; +use clippy_utils::is_hir_ty_cfg_dependant; +use clippy_utils::msrvs::{self, Msrv}; use rustc_hir::{Expr, ExprKind}; use rustc_lint::{LateContext, LateLintPass, LintContext}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; declare_clippy_lint! { @@ -648,12 +648,12 @@ declare_clippy_lint! { } pub struct Casts { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl Casts { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -686,7 +686,7 @@ impl_lint_pass!(Casts => [ impl<'tcx> LateLintPass<'tcx> for Casts { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { if !in_external_macro(cx.sess(), expr.span) { - ptr_as_ptr::check(cx, expr, self.msrv); + ptr_as_ptr::check(cx, expr, &self.msrv); } if expr.span.from_expansion() { @@ -705,7 +705,7 @@ impl<'tcx> LateLintPass<'tcx> for Casts { if unnecessary_cast::check(cx, expr, cast_expr, cast_from, cast_to) { return; } - cast_slice_from_raw_parts::check(cx, expr, cast_expr, cast_to, self.msrv); + cast_slice_from_raw_parts::check(cx, expr, cast_expr, cast_to, &self.msrv); as_ptr_cast_mut::check(cx, expr, cast_expr, cast_to); fn_to_numeric_cast_any::check(cx, expr, cast_expr, cast_from, cast_to); fn_to_numeric_cast::check(cx, expr, cast_expr, cast_from, cast_to); @@ -717,16 +717,16 @@ impl<'tcx> LateLintPass<'tcx> for Casts { cast_possible_wrap::check(cx, expr, cast_from, cast_to); cast_precision_loss::check(cx, expr, cast_from, cast_to); cast_sign_loss::check(cx, expr, cast_expr, cast_from, cast_to); - cast_abs_to_unsigned::check(cx, expr, cast_expr, cast_from, cast_to, self.msrv); + cast_abs_to_unsigned::check(cx, expr, cast_expr, cast_from, cast_to, &self.msrv); cast_nan_to_int::check(cx, expr, cast_expr, cast_from, cast_to); } - cast_lossless::check(cx, expr, cast_expr, cast_from, cast_to, self.msrv); + cast_lossless::check(cx, expr, cast_expr, cast_from, cast_to, &self.msrv); cast_enum_constructor::check(cx, expr, cast_expr, cast_from); } as_underscore::check(cx, expr, cast_to_hir); - if meets_msrv(self.msrv, msrvs::BORROW_AS_PTR) { + if self.msrv.meets(msrvs::BORROW_AS_PTR) { borrow_as_ptr::check(cx, expr, cast_expr, cast_to_hir); } } @@ -734,8 +734,8 @@ impl<'tcx> LateLintPass<'tcx> for Casts { cast_ref_to_mut::check(cx, expr); cast_ptr_alignment::check(cx, expr); char_lit_as_u8::check(cx, expr); - ptr_as_ptr::check(cx, expr, self.msrv); - cast_slice_different_sizes::check(cx, expr, self.msrv); + ptr_as_ptr::check(cx, expr, &self.msrv); + cast_slice_different_sizes::check(cx, expr, &self.msrv); } extract_msrv_attr!(LateContext); diff --git a/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs b/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs index b9509ca656f..15ffb00da88 100644 --- a/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs +++ b/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs @@ -1,19 +1,18 @@ use std::borrow::Cow; use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::sugg::Sugg; -use clippy_utils::{meets_msrv, msrvs}; use if_chain::if_chain; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind, Mutability, TyKind}; use rustc_lint::LateContext; use rustc_middle::ty::{self, TypeAndMut}; -use rustc_semver::RustcVersion; use super::PTR_AS_PTR; -pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, msrv: Option<RustcVersion>) { - if !meets_msrv(msrv, msrvs::POINTER_CAST) { +pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, msrv: &Msrv) { + if !msrv.meets(msrvs::POINTER_CAST) { return; } diff --git a/src/tools/clippy/clippy_lints/src/casts/unnecessary_cast.rs b/src/tools/clippy/clippy_lints/src/casts/unnecessary_cast.rs index c8596987e4d..7e23318076c 100644 --- a/src/tools/clippy/clippy_lints/src/casts/unnecessary_cast.rs +++ b/src/tools/clippy/clippy_lints/src/casts/unnecessary_cast.rs @@ -1,7 +1,7 @@ use clippy_utils::diagnostics::span_lint_and_sugg; -use clippy_utils::get_parent_expr; use clippy_utils::numeric_literal::NumericLiteral; use clippy_utils::source::snippet_opt; +use clippy_utils::{get_parent_expr, path_to_local}; use if_chain::if_chain; use rustc_ast::{LitFloatType, LitIntType, LitKind}; use rustc_errors::Applicability; @@ -75,13 +75,26 @@ pub(super) fn check<'tcx>( } if cast_from.kind() == cast_to.kind() && !in_external_macro(cx.sess(), expr.span) { + if let Some(id) = path_to_local(cast_expr) + && let Some(span) = cx.tcx.hir().opt_span(id) + && span.ctxt() != cast_expr.span.ctxt() + { + // Binding context is different than the identifiers context. + // Weird macro wizardry could be involved here. + return false; + } + span_lint_and_sugg( cx, UNNECESSARY_CAST, expr.span, &format!("casting to the same type is unnecessary (`{cast_from}` -> `{cast_to}`)"), "try", - cast_str, + if get_parent_expr(cx, expr).map_or(false, |e| matches!(e.kind, ExprKind::AddrOf(..))) { + format!("{{ {cast_str} }}") + } else { + cast_str + }, Applicability::MachineApplicable, ); return true; diff --git a/src/tools/clippy/clippy_lints/src/checked_conversions.rs b/src/tools/clippy/clippy_lints/src/checked_conversions.rs index 78e9921f036..9102a89e377 100644 --- a/src/tools/clippy/clippy_lints/src/checked_conversions.rs +++ b/src/tools/clippy/clippy_lints/src/checked_conversions.rs @@ -1,14 +1,14 @@ //! lint on manually implemented checked conversions that could be transformed into `try_from` use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_with_applicability; -use clippy_utils::{in_constant, is_integer_literal, meets_msrv, msrvs, SpanlessEq}; +use clippy_utils::{in_constant, is_integer_literal, SpanlessEq}; use if_chain::if_chain; use rustc_errors::Applicability; use rustc_hir::{BinOp, BinOpKind, Expr, ExprKind, QPath, TyKind}; use rustc_lint::{LateContext, LateLintPass, LintContext}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; declare_clippy_lint! { @@ -37,12 +37,12 @@ declare_clippy_lint! { } pub struct CheckedConversions { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl CheckedConversions { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -51,7 +51,7 @@ impl_lint_pass!(CheckedConversions => [CHECKED_CONVERSIONS]); impl<'tcx> LateLintPass<'tcx> for CheckedConversions { fn check_expr(&mut self, cx: &LateContext<'_>, item: &Expr<'_>) { - if !meets_msrv(self.msrv, msrvs::TRY_FROM) { + if !self.msrv.meets(msrvs::TRY_FROM) { return; } diff --git a/src/tools/clippy/clippy_lints/src/collapsible_if.rs b/src/tools/clippy/clippy_lints/src/collapsible_if.rs index 90430b71a0e..b38e09dc09f 100644 --- a/src/tools/clippy/clippy_lints/src/collapsible_if.rs +++ b/src/tools/clippy/clippy_lints/src/collapsible_if.rs @@ -160,11 +160,13 @@ fn check_collapsible_no_if_let(cx: &EarlyContext<'_>, expr: &ast::Expr, check: & if let ast::ExprKind::If(ref check_inner, ref content, None) = inner.kind; // Prevent triggering on `if c { if let a = b { .. } }`. if !matches!(check_inner.kind, ast::ExprKind::Let(..)); - if expr.span.ctxt() == inner.span.ctxt(); + let ctxt = expr.span.ctxt(); + if inner.span.ctxt() == ctxt; then { span_lint_and_then(cx, COLLAPSIBLE_IF, expr.span, "this `if` statement can be collapsed", |diag| { - let lhs = Sugg::ast(cx, check, ".."); - let rhs = Sugg::ast(cx, check_inner, ".."); + let mut app = Applicability::MachineApplicable; + let lhs = Sugg::ast(cx, check, "..", ctxt, &mut app); + let rhs = Sugg::ast(cx, check_inner, "..", ctxt, &mut app); diag.span_suggestion( expr.span, "collapse nested if block", @@ -173,7 +175,7 @@ fn check_collapsible_no_if_let(cx: &EarlyContext<'_>, expr: &ast::Expr, check: & lhs.and(&rhs), snippet_block(cx, content.span, "..", Some(expr.span)), ), - Applicability::MachineApplicable, // snippet + app, // snippet ); }); } diff --git a/src/tools/clippy/clippy_lints/src/declared_lints.rs b/src/tools/clippy/clippy_lints/src/declared_lints.rs index 0d3fc43a644..e4d76f07d6b 100644 --- a/src/tools/clippy/clippy_lints/src/declared_lints.rs +++ b/src/tools/clippy/clippy_lints/src/declared_lints.rs @@ -177,6 +177,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[ crate::from_raw_with_void_ptr::FROM_RAW_WITH_VOID_PTR_INFO, crate::from_str_radix_10::FROM_STR_RADIX_10_INFO, crate::functions::DOUBLE_MUST_USE_INFO, + crate::functions::MISNAMED_GETTERS_INFO, crate::functions::MUST_USE_CANDIDATE_INFO, crate::functions::MUST_USE_UNIT_INFO, crate::functions::NOT_UNSAFE_PTR_ARG_DEREF_INFO, @@ -583,6 +584,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[ crate::types::TYPE_COMPLEXITY_INFO, crate::types::VEC_BOX_INFO, crate::undocumented_unsafe_blocks::UNDOCUMENTED_UNSAFE_BLOCKS_INFO, + crate::undocumented_unsafe_blocks::UNNECESSARY_SAFETY_COMMENT_INFO, crate::unicode::INVISIBLE_CHARACTERS_INFO, crate::unicode::NON_ASCII_LITERAL_INFO, crate::unicode::UNICODE_NOT_NFC_INFO, diff --git a/src/tools/clippy/clippy_lints/src/dereference.rs b/src/tools/clippy/clippy_lints/src/dereference.rs index 47ea98956be..38329659e02 100644 --- a/src/tools/clippy/clippy_lints/src/dereference.rs +++ b/src/tools/clippy/clippy_lints/src/dereference.rs @@ -1,12 +1,13 @@ use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_hir_and_then}; use clippy_utils::mir::{enclosing_mir, expr_local, local_assignments, used_exactly_once, PossibleBorrowerMap}; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::{snippet_with_applicability, snippet_with_context}; use clippy_utils::sugg::has_enclosing_paren; use clippy_utils::ty::{expr_sig, is_copy, peel_mid_ty_refs, ty_sig, variant_of_res}; use clippy_utils::{ - fn_def_id, get_parent_expr, get_parent_expr_for_hir, is_lint_allowed, meets_msrv, msrvs, path_to_local, - walk_to_expr_usage, + fn_def_id, get_parent_expr, get_parent_expr_for_hir, is_lint_allowed, path_to_local, walk_to_expr_usage, }; + use rustc_ast::util::parser::{PREC_POSTFIX, PREC_PREFIX}; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::graph::iterate::{CycleDetector, TriColorDepthFirstSearch}; @@ -28,7 +29,6 @@ use rustc_middle::ty::{ self, Binder, BoundVariableKind, Clause, EarlyBinder, FnSig, GenericArgKind, List, ParamTy, PredicateKind, ProjectionPredicate, Ty, TyCtxt, TypeVisitable, TypeckResults, }; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::{symbol::sym, Span, Symbol}; use rustc_trait_selection::infer::InferCtxtExt as _; @@ -181,12 +181,12 @@ pub struct Dereferencing<'tcx> { possible_borrowers: Vec<(LocalDefId, PossibleBorrowerMap<'tcx, 'tcx>)>, // `IntoIterator` for arrays requires Rust 1.53. - msrv: Option<RustcVersion>, + msrv: Msrv, } impl<'tcx> Dereferencing<'tcx> { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv, ..Dereferencing::default() @@ -286,26 +286,27 @@ impl<'tcx> LateLintPass<'tcx> for Dereferencing<'tcx> { match (self.state.take(), kind) { (None, kind) => { let expr_ty = typeck.expr_ty(expr); - let (position, adjustments) = walk_parents(cx, &mut self.possible_borrowers, expr, self.msrv); + let (position, adjustments) = walk_parents(cx, &mut self.possible_borrowers, expr, &self.msrv); match kind { RefOp::Deref => { + let sub_ty = typeck.expr_ty(sub_expr); if let Position::FieldAccess { name, of_union: false, } = position - && !ty_contains_field(typeck.expr_ty(sub_expr), name) + && !ty_contains_field(sub_ty, name) { self.state = Some(( State::ExplicitDerefField { name }, StateData { span: expr.span, hir_id: expr.hir_id, position }, )); - } else if position.is_deref_stable() { + } else if position.is_deref_stable() && sub_ty.is_ref() { self.state = Some(( State::ExplicitDeref { mutability: None }, StateData { span: expr.span, hir_id: expr.hir_id, position }, )); } - } + }, RefOp::Method(target_mut) if !is_lint_allowed(cx, EXPLICIT_DEREF_METHODS, expr.hir_id) && position.lint_explicit_deref() => @@ -320,7 +321,7 @@ impl<'tcx> LateLintPass<'tcx> for Dereferencing<'tcx> { StateData { span: expr.span, hir_id: expr.hir_id, - position + position, }, )); }, @@ -394,7 +395,11 @@ impl<'tcx> LateLintPass<'tcx> for Dereferencing<'tcx> { msg, snip_expr, }), - StateData { span: expr.span, hir_id: expr.hir_id, position }, + StateData { + span: expr.span, + hir_id: expr.hir_id, + position, + }, )); } else if position.is_deref_stable() // Auto-deref doesn't combine with other adjustments @@ -406,7 +411,7 @@ impl<'tcx> LateLintPass<'tcx> for Dereferencing<'tcx> { StateData { span: expr.span, hir_id: expr.hir_id, - position + position, }, )); } @@ -698,7 +703,7 @@ fn walk_parents<'tcx>( cx: &LateContext<'tcx>, possible_borrowers: &mut Vec<(LocalDefId, PossibleBorrowerMap<'tcx, 'tcx>)>, e: &'tcx Expr<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) -> (Position, &'tcx [Adjustment<'tcx>]) { let mut adjustments = [].as_slice(); let mut precedence = 0i8; @@ -862,7 +867,11 @@ fn walk_parents<'tcx>( } && impl_ty.is_ref() && let infcx = cx.tcx.infer_ctxt().build() && infcx - .type_implements_trait(trait_id, [impl_ty.into()].into_iter().chain(subs.iter().copied()), cx.param_env) + .type_implements_trait( + trait_id, + [impl_ty.into()].into_iter().chain(subs.iter().copied()), + cx.param_env, + ) .must_apply_modulo_regions() { return Some(Position::MethodReceiverRefImpl) @@ -1078,7 +1087,7 @@ fn needless_borrow_impl_arg_position<'tcx>( param_ty: ParamTy, mut expr: &Expr<'tcx>, precedence: i8, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) -> Position { let destruct_trait_def_id = cx.tcx.lang_items().destruct_trait(); let sized_trait_def_id = cx.tcx.lang_items().sized_trait(); @@ -1178,7 +1187,7 @@ fn needless_borrow_impl_arg_position<'tcx>( && let ty::Param(param_ty) = trait_predicate.self_ty().kind() && let GenericArgKind::Type(ty) = substs_with_referent_ty[param_ty.index as usize].unpack() && ty.is_array() - && !meets_msrv(msrv, msrvs::ARRAY_INTO_ITERATOR) + && !msrv.meets(msrvs::ARRAY_INTO_ITERATOR) { return false; } diff --git a/src/tools/clippy/clippy_lints/src/derive.rs b/src/tools/clippy/clippy_lints/src/derive.rs index d870e0ceef4..9e596ca8157 100644 --- a/src/tools/clippy/clippy_lints/src/derive.rs +++ b/src/tools/clippy/clippy_lints/src/derive.rs @@ -14,8 +14,8 @@ use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::hir::nested_filter; use rustc_middle::traits::Reveal; use rustc_middle::ty::{ - self, Binder, BoundConstness, Clause, GenericParamDefKind, ImplPolarity, ParamEnv, PredicateKind, TraitPredicate, TraitRef, - Ty, TyCtxt, + self, Binder, BoundConstness, Clause, GenericParamDefKind, ImplPolarity, ParamEnv, PredicateKind, TraitPredicate, + TraitRef, Ty, TyCtxt, }; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::source_map::Span; diff --git a/src/tools/clippy/clippy_lints/src/disallowed_types.rs b/src/tools/clippy/clippy_lints/src/disallowed_types.rs index aee3d8c4f08..1f56d0118a4 100644 --- a/src/tools/clippy/clippy_lints/src/disallowed_types.rs +++ b/src/tools/clippy/clippy_lints/src/disallowed_types.rs @@ -106,7 +106,9 @@ impl<'tcx> LateLintPass<'tcx> for DisallowedTypes { fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx Item<'tcx>) { if let ItemKind::Use(path, UseKind::Single) = &item.kind { - self.check_res_emit(cx, &path.res, item.span); + for res in &path.res { + self.check_res_emit(cx, res, item.span); + } } } diff --git a/src/tools/clippy/clippy_lints/src/doc.rs b/src/tools/clippy/clippy_lints/src/doc.rs index ae5f9424b23..cdc23a4d227 100644 --- a/src/tools/clippy/clippy_lints/src/doc.rs +++ b/src/tools/clippy/clippy_lints/src/doc.rs @@ -253,7 +253,7 @@ declare_clippy_lint! { /// ``` #[clippy::version = "1.66.0"] pub UNNECESSARY_SAFETY_DOC, - style, + restriction, "`pub fn` or `pub trait` with `# Safety` docs" } diff --git a/src/tools/clippy/clippy_lints/src/eta_reduction.rs b/src/tools/clippy/clippy_lints/src/eta_reduction.rs index f34cbee0355..3543910c3b5 100644 --- a/src/tools/clippy/clippy_lints/src/eta_reduction.rs +++ b/src/tools/clippy/clippy_lints/src/eta_reduction.rs @@ -11,7 +11,7 @@ use rustc_hir::{Closure, Expr, ExprKind, Param, PatKind, Unsafety}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty::adjustment::{Adjust, Adjustment, AutoBorrow}; use rustc_middle::ty::binding::BindingMode; -use rustc_middle::ty::{self, Ty, TypeVisitable}; +use rustc_middle::ty::{self, EarlyBinder, SubstsRef, Ty, TypeVisitable}; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::symbol::sym; @@ -125,7 +125,12 @@ impl<'tcx> LateLintPass<'tcx> for EtaReduction { if let Some(mut snippet) = snippet_opt(cx, callee.span) { if let Some(fn_mut_id) = cx.tcx.lang_items().fn_mut_trait() && let args = cx.tcx.erase_late_bound_regions(substs.as_closure().sig()).inputs() - && implements_trait(cx, callee_ty.peel_refs(), fn_mut_id, &args.iter().copied().map(Into::into).collect::<Vec<_>>()) + && implements_trait( + cx, + callee_ty.peel_refs(), + fn_mut_id, + &args.iter().copied().map(Into::into).collect::<Vec<_>>(), + ) && path_to_local(callee).map_or(false, |l| local_used_after_expr(cx, l, expr)) { // Mutable closure is used after current expr; we cannot consume it. @@ -152,7 +157,7 @@ impl<'tcx> LateLintPass<'tcx> for EtaReduction { if check_sig(cx, closure_ty, call_ty); then { span_lint_and_then(cx, REDUNDANT_CLOSURE_FOR_METHOD_CALLS, expr.span, "redundant closure", |diag| { - let name = get_ufcs_type_name(cx, method_def_id); + let name = get_ufcs_type_name(cx, method_def_id, substs); diag.span_suggestion( expr.span, "replace the closure with the method itself", @@ -222,7 +227,7 @@ fn check_sig<'tcx>(cx: &LateContext<'tcx>, closure_ty: Ty<'tcx>, call_ty: Ty<'tc cx.tcx.erase_late_bound_regions(closure_sig) == cx.tcx.erase_late_bound_regions(call_sig) } -fn get_ufcs_type_name(cx: &LateContext<'_>, method_def_id: DefId) -> String { +fn get_ufcs_type_name<'tcx>(cx: &LateContext<'tcx>, method_def_id: DefId, substs: SubstsRef<'tcx>) -> String { let assoc_item = cx.tcx.associated_item(method_def_id); let def_id = assoc_item.container_id(cx.tcx); match assoc_item.container { @@ -231,6 +236,15 @@ fn get_ufcs_type_name(cx: &LateContext<'_>, method_def_id: DefId) -> String { let ty = cx.tcx.type_of(def_id); match ty.kind() { ty::Adt(adt, _) => cx.tcx.def_path_str(adt.did()), + ty::Array(..) + | ty::Dynamic(..) + | ty::Never + | ty::RawPtr(_) + | ty::Ref(..) + | ty::Slice(_) + | ty::Tuple(_) => { + format!("<{}>", EarlyBinder(ty).subst(cx.tcx, substs)) + }, _ => ty.to_string(), } }, diff --git a/src/tools/clippy/clippy_lints/src/exit.rs b/src/tools/clippy/clippy_lints/src/exit.rs index 407dd1b3957..9c8b0d076df 100644 --- a/src/tools/clippy/clippy_lints/src/exit.rs +++ b/src/tools/clippy/clippy_lints/src/exit.rs @@ -7,21 +7,34 @@ use rustc_session::{declare_lint_pass, declare_tool_lint}; declare_clippy_lint! { /// ### What it does - /// `exit()` terminates the program and doesn't provide a - /// stack trace. + /// Detects calls to the `exit()` function which terminates the program. /// /// ### Why is this bad? - /// Ideally a program is terminated by finishing + /// Exit terminates the program at the location it is called. For unrecoverable + /// errors `panics` should be used to provide a stacktrace and potentualy other + /// information. A normal termination or one with an error code should happen in /// the main function. /// /// ### Example - /// ```ignore + /// ``` /// std::process::exit(0) /// ``` + /// + /// Use instead: + /// + /// ```ignore + /// // To provide a stacktrace and additional information + /// panic!("message"); + /// + /// // or a main method with a return + /// fn main() -> Result<(), i32> { + /// Ok(()) + /// } + /// ``` #[clippy::version = "1.41.0"] pub EXIT, restriction, - "`std::process::exit` is called, terminating the program" + "detects `std::process::exit` calls" } declare_lint_pass!(Exit => [EXIT]); diff --git a/src/tools/clippy/clippy_lints/src/format_args.rs b/src/tools/clippy/clippy_lints/src/format_args.rs index f0fe845d330..111b624f529 100644 --- a/src/tools/clippy/clippy_lints/src/format_args.rs +++ b/src/tools/clippy/clippy_lints/src/format_args.rs @@ -1,19 +1,22 @@ use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_and_then}; -use clippy_utils::macros::FormatParamKind::{Implicit, Named, Numbered, Starred}; +use clippy_utils::is_diag_trait_item; +use clippy_utils::macros::FormatParamKind::{Implicit, Named, NamedInline, Numbered, Starred}; use clippy_utils::macros::{ is_format_macro, is_panic, root_macro_call, Count, FormatArg, FormatArgsExpn, FormatParam, FormatParamUsage, }; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_opt; use clippy_utils::ty::{implements_trait, is_type_diagnostic_item}; -use clippy_utils::{is_diag_trait_item, meets_msrv, msrvs}; use if_chain::if_chain; use itertools::Itertools; -use rustc_errors::Applicability; +use rustc_errors::{ + Applicability, + SuggestionStyle::{CompletelyHidden, ShowCode}, +}; use rustc_hir::{Expr, ExprKind, HirId, QPath}; use rustc_lint::{LateContext, LateLintPass, LintContext}; use rustc_middle::ty::adjustment::{Adjust, Adjustment}; use rustc_middle::ty::Ty; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::def_id::DefId; use rustc_span::edition::Edition::Edition2021; @@ -103,19 +106,25 @@ declare_clippy_lint! { /// format!("{var:.prec$}"); /// ``` /// - /// ### Known Problems - /// - /// There may be a false positive if the format string is expanded from certain proc macros: - /// - /// ```ignore - /// println!(indoc!("{}"), var); + /// If allow-mixed-uninlined-format-args is set to false in clippy.toml, + /// the following code will also trigger the lint: + /// ```rust + /// # let var = 42; + /// format!("{} {}", var, 1+2); + /// ``` + /// Use instead: + /// ```rust + /// # let var = 42; + /// format!("{var} {}", 1+2); /// ``` /// + /// ### Known Problems + /// /// If a format string contains a numbered argument that cannot be inlined /// nothing will be suggested, e.g. `println!("{0}={1}", var, 1+2)`. #[clippy::version = "1.65.0"] pub UNINLINED_FORMAT_ARGS, - pedantic, + style, "using non-inlined variables in `format!` calls" } @@ -158,13 +167,17 @@ impl_lint_pass!(FormatArgs => [ ]); pub struct FormatArgs { - msrv: Option<RustcVersion>, + msrv: Msrv, + ignore_mixed: bool, } impl FormatArgs { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { - Self { msrv } + pub fn new(msrv: Msrv, allow_mixed_uninlined_format_args: bool) -> Self { + Self { + msrv, + ignore_mixed: allow_mixed_uninlined_format_args, + } } } @@ -188,8 +201,8 @@ impl<'tcx> LateLintPass<'tcx> for FormatArgs { check_format_in_format_args(cx, outermost_expn_data.call_site, name, arg.param.value); check_to_string_in_format_args(cx, name, arg.param.value); } - if meets_msrv(self.msrv, msrvs::FORMAT_ARGS_CAPTURE) { - check_uninlined_args(cx, &format_args, outermost_expn_data.call_site, macro_def_id); + if self.msrv.meets(msrvs::FORMAT_ARGS_CAPTURE) { + check_uninlined_args(cx, &format_args, outermost_expn_data.call_site, macro_def_id, self.ignore_mixed); } } } @@ -267,7 +280,13 @@ fn check_unused_format_specifier(cx: &LateContext<'_>, arg: &FormatArg<'_>) { } } -fn check_uninlined_args(cx: &LateContext<'_>, args: &FormatArgsExpn<'_>, call_site: Span, def_id: DefId) { +fn check_uninlined_args( + cx: &LateContext<'_>, + args: &FormatArgsExpn<'_>, + call_site: Span, + def_id: DefId, + ignore_mixed: bool, +) { if args.format_string.span.from_expansion() { return; } @@ -282,14 +301,13 @@ fn check_uninlined_args(cx: &LateContext<'_>, args: &FormatArgsExpn<'_>, call_si // we cannot remove any other arguments in the format string, // because the index numbers might be wrong after inlining. // Example of an un-inlinable format: print!("{}{1}", foo, 2) - if !args.params().all(|p| check_one_arg(args, &p, &mut fixes)) || fixes.is_empty() { + if !args.params().all(|p| check_one_arg(args, &p, &mut fixes, ignore_mixed)) || fixes.is_empty() { return; } - // Temporarily ignore multiline spans: https://github.com/rust-lang/rust/pull/102729#discussion_r988704308 - if fixes.iter().any(|(span, _)| cx.sess().source_map().is_multiline(*span)) { - return; - } + // multiline span display suggestion is sometimes broken: https://github.com/rust-lang/rust/pull/102729#discussion_r988704308 + // in those cases, make the code suggestion hidden + let multiline_fix = fixes.iter().any(|(span, _)| cx.sess().source_map().is_multiline(*span)); span_lint_and_then( cx, @@ -297,12 +315,22 @@ fn check_uninlined_args(cx: &LateContext<'_>, args: &FormatArgsExpn<'_>, call_si call_site, "variables can be used directly in the `format!` string", |diag| { - diag.multipart_suggestion("change this to", fixes, Applicability::MachineApplicable); + diag.multipart_suggestion_with_style( + "change this to", + fixes, + Applicability::MachineApplicable, + if multiline_fix { CompletelyHidden } else { ShowCode }, + ); }, ); } -fn check_one_arg(args: &FormatArgsExpn<'_>, param: &FormatParam<'_>, fixes: &mut Vec<(Span, String)>) -> bool { +fn check_one_arg( + args: &FormatArgsExpn<'_>, + param: &FormatParam<'_>, + fixes: &mut Vec<(Span, String)>, + ignore_mixed: bool, +) -> bool { if matches!(param.kind, Implicit | Starred | Named(_) | Numbered) && let ExprKind::Path(QPath::Resolved(None, path)) = param.value.kind && let [segment] = path.segments @@ -317,8 +345,10 @@ fn check_one_arg(args: &FormatArgsExpn<'_>, param: &FormatParam<'_>, fixes: &mut fixes.push((arg_span, String::new())); true // successful inlining, continue checking } else { - // if we can't inline a numbered argument, we can't continue - param.kind != Numbered + // Do not continue inlining (return false) in case + // * if we can't inline a numbered argument, e.g. `print!("{0} ...", foo.bar, ...)` + // * if allow_mixed_uninlined_format_args is false and this arg hasn't been inlined already + param.kind != Numbered && (!ignore_mixed || matches!(param.kind, NamedInline(_))) } } diff --git a/src/tools/clippy/clippy_lints/src/from_over_into.rs b/src/tools/clippy/clippy_lints/src/from_over_into.rs index 8b24a4962fb..0634b2798fe 100644 --- a/src/tools/clippy/clippy_lints/src/from_over_into.rs +++ b/src/tools/clippy/clippy_lints/src/from_over_into.rs @@ -1,7 +1,8 @@ use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::macros::span_is_local; +use clippy_utils::msrvs::{self, Msrv}; +use clippy_utils::path_def_id; use clippy_utils::source::snippet_opt; -use clippy_utils::{meets_msrv, msrvs, path_def_id}; use rustc_errors::Applicability; use rustc_hir::intravisit::{walk_path, Visitor}; use rustc_hir::{ @@ -10,7 +11,6 @@ use rustc_hir::{ }; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::hir::nested_filter::OnlyBodies; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::symbol::{kw, sym}; use rustc_span::{Span, Symbol}; @@ -49,12 +49,12 @@ declare_clippy_lint! { } pub struct FromOverInto { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl FromOverInto { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { FromOverInto { msrv } } } @@ -63,7 +63,7 @@ impl_lint_pass!(FromOverInto => [FROM_OVER_INTO]); impl<'tcx> LateLintPass<'tcx> for FromOverInto { fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx Item<'_>) { - if !meets_msrv(self.msrv, msrvs::RE_REBALANCING_COHERENCE) || !span_is_local(item.span) { + if !self.msrv.meets(msrvs::RE_REBALANCING_COHERENCE) || !span_is_local(item.span) { return; } @@ -126,7 +126,7 @@ impl<'a, 'tcx> Visitor<'tcx> for SelfFinder<'a, 'tcx> { self.cx.tcx.hir() } - fn visit_path(&mut self, path: &'tcx Path<'tcx>, _id: HirId) { + fn visit_path(&mut self, path: &Path<'tcx>, _id: HirId) { for segment in path.segments { match segment.ident.name { kw::SelfLower => self.lower.push(segment.ident.span), diff --git a/src/tools/clippy/clippy_lints/src/functions/misnamed_getters.rs b/src/tools/clippy/clippy_lints/src/functions/misnamed_getters.rs new file mode 100644 index 00000000000..27acad45ccf --- /dev/null +++ b/src/tools/clippy/clippy_lints/src/functions/misnamed_getters.rs @@ -0,0 +1,125 @@ +use clippy_utils::diagnostics::span_lint_and_then; +use clippy_utils::source::snippet; +use rustc_errors::Applicability; +use rustc_hir::{intravisit::FnKind, Body, ExprKind, FnDecl, HirId, ImplicitSelfKind, Unsafety}; +use rustc_lint::LateContext; +use rustc_middle::ty; +use rustc_span::Span; + +use std::iter; + +use super::MISNAMED_GETTERS; + +pub fn check_fn( + cx: &LateContext<'_>, + kind: FnKind<'_>, + decl: &FnDecl<'_>, + body: &Body<'_>, + span: Span, + _hir_id: HirId, +) { + let FnKind::Method(ref ident, sig) = kind else { + return; + }; + + // Takes only &(mut) self + if decl.inputs.len() != 1 { + return; + } + + let name = ident.name.as_str(); + + let name = match decl.implicit_self { + ImplicitSelfKind::MutRef => { + let Some(name) = name.strip_suffix("_mut") else { + return; + }; + name + }, + ImplicitSelfKind::Imm | ImplicitSelfKind::Mut | ImplicitSelfKind::ImmRef => name, + ImplicitSelfKind::None => return, + }; + + let name = if sig.header.unsafety == Unsafety::Unsafe { + name.strip_suffix("_unchecked").unwrap_or(name) + } else { + name + }; + + // Body must be &(mut) <self_data>.name + // self_data is not neccessarilly self, to also lint sub-getters, etc… + + let block_expr = if_chain! { + if let ExprKind::Block(block,_) = body.value.kind; + if block.stmts.is_empty(); + if let Some(block_expr) = block.expr; + then { + block_expr + } else { + return; + } + }; + let expr_span = block_expr.span; + + // Accept &<expr>, &mut <expr> and <expr> + let expr = if let ExprKind::AddrOf(_, _, tmp) = block_expr.kind { + tmp + } else { + block_expr + }; + let (self_data, used_ident) = if_chain! { + if let ExprKind::Field(self_data, ident) = expr.kind; + if ident.name.as_str() != name; + then { + (self_data, ident) + } else { + return; + } + }; + + let mut used_field = None; + let mut correct_field = None; + let typeck_results = cx.typeck_results(); + for adjusted_type in iter::once(typeck_results.expr_ty(self_data)) + .chain(typeck_results.expr_adjustments(self_data).iter().map(|adj| adj.target)) + { + let ty::Adt(def,_) = adjusted_type.kind() else { + continue; + }; + + for f in def.all_fields() { + if f.name.as_str() == name { + correct_field = Some(f); + } + if f.name == used_ident.name { + used_field = Some(f); + } + } + } + + let Some(used_field) = used_field else { + // Can happen if the field access is a tuple. We don't lint those because the getter name could not start with a number. + return; + }; + + let Some(correct_field) = correct_field else { + // There is no field corresponding to the getter name. + // FIXME: This can be a false positive if the correct field is reachable trought deeper autodereferences than used_field is + return; + }; + + if cx.tcx.type_of(used_field.did) == cx.tcx.type_of(correct_field.did) { + let left_span = block_expr.span.until(used_ident.span); + let snippet = snippet(cx, left_span, ".."); + let sugg = format!("{snippet}{name}"); + span_lint_and_then( + cx, + MISNAMED_GETTERS, + span, + "getter function appears to return the wrong field", + |diag| { + diag.span_suggestion(expr_span, "consider using", sugg, Applicability::MaybeIncorrect); + }, + ); + } +} diff --git a/src/tools/clippy/clippy_lints/src/functions/mod.rs b/src/tools/clippy/clippy_lints/src/functions/mod.rs index ae0e0833446..91e6ffe6447 100644 --- a/src/tools/clippy/clippy_lints/src/functions/mod.rs +++ b/src/tools/clippy/clippy_lints/src/functions/mod.rs @@ -1,3 +1,4 @@ +mod misnamed_getters; mod must_use; mod not_unsafe_ptr_arg_deref; mod result; @@ -260,6 +261,48 @@ declare_clippy_lint! { "function returning `Result` with large `Err` type" } +declare_clippy_lint! { + /// ### What it does + /// Checks for getter methods that return a field that doesn't correspond + /// to the name of the method, when there is a field's whose name matches that of the method. + /// + /// ### Why is this bad? + /// It is most likely that such a method is a bug caused by a typo or by copy-pasting. + /// + /// ### Example + + /// ```rust + /// struct A { + /// a: String, + /// b: String, + /// } + /// + /// impl A { + /// fn a(&self) -> &str{ + /// &self.b + /// } + /// } + + /// ``` + /// Use instead: + /// ```rust + /// struct A { + /// a: String, + /// b: String, + /// } + /// + /// impl A { + /// fn a(&self) -> &str{ + /// &self.a + /// } + /// } + /// ``` + #[clippy::version = "1.67.0"] + pub MISNAMED_GETTERS, + suspicious, + "getter method returning the wrong field" +} + #[derive(Copy, Clone)] pub struct Functions { too_many_arguments_threshold: u64, @@ -286,6 +329,7 @@ impl_lint_pass!(Functions => [ MUST_USE_CANDIDATE, RESULT_UNIT_ERR, RESULT_LARGE_ERR, + MISNAMED_GETTERS, ]); impl<'tcx> LateLintPass<'tcx> for Functions { @@ -301,6 +345,7 @@ impl<'tcx> LateLintPass<'tcx> for Functions { too_many_arguments::check_fn(cx, kind, decl, span, hir_id, self.too_many_arguments_threshold); too_many_lines::check_fn(cx, kind, span, body, self.too_many_lines_threshold); not_unsafe_ptr_arg_deref::check_fn(cx, kind, decl, body, hir_id); + misnamed_getters::check_fn(cx, kind, decl, body, span, hir_id); } fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'_>) { diff --git a/src/tools/clippy/clippy_lints/src/functions/result.rs b/src/tools/clippy/clippy_lints/src/functions/result.rs index f7e30b051a6..23da145d038 100644 --- a/src/tools/clippy/clippy_lints/src/functions/result.rs +++ b/src/tools/clippy/clippy_lints/src/functions/result.rs @@ -94,7 +94,9 @@ fn check_result_large_err<'tcx>(cx: &LateContext<'tcx>, err_ty: Ty<'tcx>, hir_ty if let hir::ItemKind::Enum(ref def, _) = item.kind; then { let variants_size = AdtVariantInfo::new(cx, *adt, subst); - if variants_size[0].size >= large_err_threshold { + if let Some((first_variant, variants)) = variants_size.split_first() + && first_variant.size >= large_err_threshold + { span_lint_and_then( cx, RESULT_LARGE_ERR, @@ -102,11 +104,11 @@ fn check_result_large_err<'tcx>(cx: &LateContext<'tcx>, err_ty: Ty<'tcx>, hir_ty "the `Err`-variant returned from this function is very large", |diag| { diag.span_label( - def.variants[variants_size[0].ind].span, + def.variants[first_variant.ind].span, format!("the largest variant contains at least {} bytes", variants_size[0].size), ); - for variant in &variants_size[1..] { + for variant in variants { if variant.size >= large_err_threshold { let variant_def = &def.variants[variant.ind]; diag.span_label( diff --git a/src/tools/clippy/clippy_lints/src/future_not_send.rs b/src/tools/clippy/clippy_lints/src/future_not_send.rs index a9425a40f88..61934a91426 100644 --- a/src/tools/clippy/clippy_lints/src/future_not_send.rs +++ b/src/tools/clippy/clippy_lints/src/future_not_send.rs @@ -91,7 +91,9 @@ impl<'tcx> LateLintPass<'tcx> for FutureNotSend { infcx .err_ctxt() .maybe_note_obligation_cause_for_async_await(db, &obligation); - if let PredicateKind::Clause(Clause::Trait(trait_pred)) = obligation.predicate.kind().skip_binder() { + if let PredicateKind::Clause(Clause::Trait(trait_pred)) = + obligation.predicate.kind().skip_binder() + { db.note(&format!( "`{}` doesn't implement `{}`", trait_pred.self_ty(), diff --git a/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs b/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs index 0d6718c168a..9cadaaa493e 100644 --- a/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs +++ b/src/tools/clippy/clippy_lints/src/if_then_some_else_none.rs @@ -1,14 +1,12 @@ use clippy_utils::diagnostics::span_lint_and_help; use clippy_utils::eager_or_lazy::switch_to_eager_eval; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_with_macro_callsite; -use clippy_utils::{ - contains_return, higher, is_else_clause, is_res_lang_ctor, meets_msrv, msrvs, path_res, peel_blocks, -}; +use clippy_utils::{contains_return, higher, is_else_clause, is_res_lang_ctor, path_res, peel_blocks}; use rustc_hir::LangItem::{OptionNone, OptionSome}; use rustc_hir::{Expr, ExprKind, Stmt, StmtKind}; use rustc_lint::{LateContext, LateLintPass, LintContext}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; declare_clippy_lint! { @@ -47,12 +45,12 @@ declare_clippy_lint! { } pub struct IfThenSomeElseNone { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl IfThenSomeElseNone { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -61,7 +59,7 @@ impl_lint_pass!(IfThenSomeElseNone => [IF_THEN_SOME_ELSE_NONE]); impl<'tcx> LateLintPass<'tcx> for IfThenSomeElseNone { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) { - if !meets_msrv(self.msrv, msrvs::BOOL_THEN) { + if !self.msrv.meets(msrvs::BOOL_THEN) { return; } @@ -94,7 +92,7 @@ impl<'tcx> LateLintPass<'tcx> for IfThenSomeElseNone { } else { format!("{{ /* snippet */ {arg_snip} }}") }; - let method_name = if switch_to_eager_eval(cx, expr) && meets_msrv(self.msrv, msrvs::BOOL_THEN_SOME) { + let method_name = if switch_to_eager_eval(cx, expr) && self.msrv.meets(msrvs::BOOL_THEN_SOME) { "then_some" } else { method_body.insert_str(0, "|| "); diff --git a/src/tools/clippy/clippy_lints/src/index_refutable_slice.rs b/src/tools/clippy/clippy_lints/src/index_refutable_slice.rs index 0d5099bde6d..cf35b1f175c 100644 --- a/src/tools/clippy/clippy_lints/src/index_refutable_slice.rs +++ b/src/tools/clippy/clippy_lints/src/index_refutable_slice.rs @@ -1,8 +1,9 @@ use clippy_utils::consts::{constant, Constant}; use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::higher::IfLet; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::ty::is_copy; -use clippy_utils::{is_expn_of, is_lint_allowed, meets_msrv, msrvs, path_to_local}; +use clippy_utils::{is_expn_of, is_lint_allowed, path_to_local}; use if_chain::if_chain; use rustc_data_structures::fx::{FxHashSet, FxIndexMap}; use rustc_errors::Applicability; @@ -11,7 +12,6 @@ use rustc_hir::intravisit::{self, Visitor}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::hir::nested_filter; use rustc_middle::ty; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::{symbol::Ident, Span}; @@ -47,18 +47,17 @@ declare_clippy_lint! { /// ``` #[clippy::version = "1.59.0"] pub INDEX_REFUTABLE_SLICE, - nursery, + pedantic, "avoid indexing on slices which could be destructed" } -#[derive(Copy, Clone)] pub struct IndexRefutableSlice { max_suggested_slice: u64, - msrv: Option<RustcVersion>, + msrv: Msrv, } impl IndexRefutableSlice { - pub fn new(max_suggested_slice_pattern_length: u64, msrv: Option<RustcVersion>) -> Self { + pub fn new(max_suggested_slice_pattern_length: u64, msrv: Msrv) -> Self { Self { max_suggested_slice: max_suggested_slice_pattern_length, msrv, @@ -74,7 +73,7 @@ impl<'tcx> LateLintPass<'tcx> for IndexRefutableSlice { if !expr.span.from_expansion() || is_expn_of(expr.span, "if_chain").is_some(); if let Some(IfLet {let_pat, if_then, ..}) = IfLet::hir(cx, expr); if !is_lint_allowed(cx, INDEX_REFUTABLE_SLICE, expr.hir_id); - if meets_msrv(self.msrv, msrvs::SLICE_PATTERNS); + if self.msrv.meets(msrvs::SLICE_PATTERNS); let found_slices = find_slice_values(cx, let_pat); if !found_slices.is_empty(); diff --git a/src/tools/clippy/clippy_lints/src/instant_subtraction.rs b/src/tools/clippy/clippy_lints/src/instant_subtraction.rs index 60754b224fc..dd1b23e7d9d 100644 --- a/src/tools/clippy/clippy_lints/src/instant_subtraction.rs +++ b/src/tools/clippy/clippy_lints/src/instant_subtraction.rs @@ -1,13 +1,11 @@ -use clippy_utils::{ - diagnostics::{self, span_lint_and_sugg}, - meets_msrv, msrvs, source, - sugg::Sugg, - ty, -}; +use clippy_utils::diagnostics::{self, span_lint_and_sugg}; +use clippy_utils::msrvs::{self, Msrv}; +use clippy_utils::source; +use clippy_utils::sugg::Sugg; +use clippy_utils::ty; use rustc_errors::Applicability; use rustc_hir::{BinOpKind, Expr, ExprKind}; use rustc_lint::{LateContext, LateLintPass}; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::{source_map::Spanned, sym}; @@ -68,12 +66,12 @@ declare_clippy_lint! { } pub struct InstantSubtraction { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl InstantSubtraction { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -101,7 +99,7 @@ impl LateLintPass<'_> for InstantSubtraction { } else { if_chain! { if !expr.span.from_expansion(); - if meets_msrv(self.msrv, msrvs::TRY_FROM); + if self.msrv.meets(msrvs::TRY_FROM); if is_an_instant(cx, lhs); if is_a_duration(cx, rhs); diff --git a/src/tools/clippy/clippy_lints/src/lib.rs b/src/tools/clippy/clippy_lints/src/lib.rs index 601990cd6a3..7b17d8a156d 100644 --- a/src/tools/clippy/clippy_lints/src/lib.rs +++ b/src/tools/clippy/clippy_lints/src/lib.rs @@ -52,10 +52,9 @@ extern crate declare_clippy_lint; use std::io; use std::path::PathBuf; -use clippy_utils::parse_msrv; +use clippy_utils::msrvs::Msrv; use rustc_data_structures::fx::FxHashSet; use rustc_lint::{Lint, LintId}; -use rustc_semver::RustcVersion; use rustc_session::Session; #[cfg(feature = "internal")] @@ -322,48 +321,10 @@ pub use crate::utils::conf::{lookup_conf_file, Conf}; /// Used in `./src/driver.rs`. pub fn register_pre_expansion_lints(store: &mut rustc_lint::LintStore, sess: &Session, conf: &Conf) { // NOTE: Do not add any more pre-expansion passes. These should be removed eventually. + let msrv = Msrv::read(&conf.msrv, sess); + let msrv = move || msrv.clone(); - let msrv = conf.msrv.as_ref().and_then(|s| { - parse_msrv(s, None, None).or_else(|| { - sess.err(format!( - "error reading Clippy's configuration file. `{s}` is not a valid Rust version" - )); - None - }) - }); - - store.register_pre_expansion_pass(move || Box::new(attrs::EarlyAttributes { msrv })); -} - -fn read_msrv(conf: &Conf, sess: &Session) -> Option<RustcVersion> { - let cargo_msrv = std::env::var("CARGO_PKG_RUST_VERSION") - .ok() - .and_then(|v| parse_msrv(&v, None, None)); - let clippy_msrv = conf.msrv.as_ref().and_then(|s| { - parse_msrv(s, None, None).or_else(|| { - sess.err(format!( - "error reading Clippy's configuration file. `{s}` is not a valid Rust version" - )); - None - }) - }); - - if let Some(cargo_msrv) = cargo_msrv { - if let Some(clippy_msrv) = clippy_msrv { - // if both files have an msrv, let's compare them and emit a warning if they differ - if clippy_msrv != cargo_msrv { - sess.warn(format!( - "the MSRV in `clippy.toml` and `Cargo.toml` differ; using `{clippy_msrv}` from `clippy.toml`" - )); - } - - Some(clippy_msrv) - } else { - Some(cargo_msrv) - } - } else { - clippy_msrv - } + store.register_pre_expansion_pass(move || Box::new(attrs::EarlyAttributes { msrv: msrv() })); } #[doc(hidden)] @@ -595,43 +556,44 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|_| Box::new(non_octal_unix_permissions::NonOctalUnixPermissions)); store.register_early_pass(|| Box::new(unnecessary_self_imports::UnnecessarySelfImports)); - let msrv = read_msrv(conf, sess); + let msrv = Msrv::read(&conf.msrv, sess); + let msrv = move || msrv.clone(); let avoid_breaking_exported_api = conf.avoid_breaking_exported_api; let allow_expect_in_tests = conf.allow_expect_in_tests; let allow_unwrap_in_tests = conf.allow_unwrap_in_tests; - store.register_late_pass(move |_| Box::new(approx_const::ApproxConstant::new(msrv))); + store.register_late_pass(move |_| Box::new(approx_const::ApproxConstant::new(msrv()))); store.register_late_pass(move |_| { Box::new(methods::Methods::new( avoid_breaking_exported_api, - msrv, + msrv(), allow_expect_in_tests, allow_unwrap_in_tests, )) }); - store.register_late_pass(move |_| Box::new(matches::Matches::new(msrv))); + store.register_late_pass(move |_| Box::new(matches::Matches::new(msrv()))); let matches_for_let_else = conf.matches_for_let_else; - store.register_late_pass(move |_| Box::new(manual_let_else::ManualLetElse::new(msrv, matches_for_let_else))); - store.register_early_pass(move || Box::new(manual_non_exhaustive::ManualNonExhaustiveStruct::new(msrv))); - store.register_late_pass(move |_| Box::new(manual_non_exhaustive::ManualNonExhaustiveEnum::new(msrv))); - store.register_late_pass(move |_| Box::new(manual_strip::ManualStrip::new(msrv))); - store.register_early_pass(move || Box::new(redundant_static_lifetimes::RedundantStaticLifetimes::new(msrv))); - store.register_early_pass(move || Box::new(redundant_field_names::RedundantFieldNames::new(msrv))); - store.register_late_pass(move |_| Box::new(checked_conversions::CheckedConversions::new(msrv))); - store.register_late_pass(move |_| Box::new(mem_replace::MemReplace::new(msrv))); - store.register_late_pass(move |_| Box::new(ranges::Ranges::new(msrv))); - store.register_late_pass(move |_| Box::new(from_over_into::FromOverInto::new(msrv))); - store.register_late_pass(move |_| Box::new(use_self::UseSelf::new(msrv))); - store.register_late_pass(move |_| Box::new(missing_const_for_fn::MissingConstForFn::new(msrv))); + store.register_late_pass(move |_| Box::new(manual_let_else::ManualLetElse::new(msrv(), matches_for_let_else))); + store.register_early_pass(move || Box::new(manual_non_exhaustive::ManualNonExhaustiveStruct::new(msrv()))); + store.register_late_pass(move |_| Box::new(manual_non_exhaustive::ManualNonExhaustiveEnum::new(msrv()))); + store.register_late_pass(move |_| Box::new(manual_strip::ManualStrip::new(msrv()))); + store.register_early_pass(move || Box::new(redundant_static_lifetimes::RedundantStaticLifetimes::new(msrv()))); + store.register_early_pass(move || Box::new(redundant_field_names::RedundantFieldNames::new(msrv()))); + store.register_late_pass(move |_| Box::new(checked_conversions::CheckedConversions::new(msrv()))); + store.register_late_pass(move |_| Box::new(mem_replace::MemReplace::new(msrv()))); + store.register_late_pass(move |_| Box::new(ranges::Ranges::new(msrv()))); + store.register_late_pass(move |_| Box::new(from_over_into::FromOverInto::new(msrv()))); + store.register_late_pass(move |_| Box::new(use_self::UseSelf::new(msrv()))); + store.register_late_pass(move |_| Box::new(missing_const_for_fn::MissingConstForFn::new(msrv()))); store.register_late_pass(move |_| Box::new(needless_question_mark::NeedlessQuestionMark)); - store.register_late_pass(move |_| Box::new(casts::Casts::new(msrv))); - store.register_early_pass(move || Box::new(unnested_or_patterns::UnnestedOrPatterns::new(msrv))); + store.register_late_pass(move |_| Box::new(casts::Casts::new(msrv()))); + store.register_early_pass(move || Box::new(unnested_or_patterns::UnnestedOrPatterns::new(msrv()))); store.register_late_pass(|_| Box::new(size_of_in_element_count::SizeOfInElementCount)); store.register_late_pass(|_| Box::new(same_name_method::SameNameMethod)); let max_suggested_slice_pattern_length = conf.max_suggested_slice_pattern_length; store.register_late_pass(move |_| { Box::new(index_refutable_slice::IndexRefutableSlice::new( max_suggested_slice_pattern_length, - msrv, + msrv(), )) }); store.register_late_pass(|_| Box::<shadow::Shadow>::default()); @@ -648,7 +610,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|_| Box::new(borrow_deref_ref::BorrowDerefRef)); store.register_late_pass(|_| Box::new(no_effect::NoEffect)); store.register_late_pass(|_| Box::new(temporary_assignment::TemporaryAssignment)); - store.register_late_pass(move |_| Box::new(transmute::Transmute::new(msrv))); + store.register_late_pass(move |_| Box::new(transmute::Transmute::new(msrv()))); let cognitive_complexity_threshold = conf.cognitive_complexity_threshold; store.register_late_pass(move |_| { Box::new(cognitive_complexity::CognitiveComplexity::new( @@ -806,7 +768,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(move |_| Box::new(wildcard_imports::WildcardImports::new(warn_on_all_wildcard_imports))); store.register_late_pass(|_| Box::<redundant_pub_crate::RedundantPubCrate>::default()); store.register_late_pass(|_| Box::new(unnamed_address::UnnamedAddress)); - store.register_late_pass(move |_| Box::new(dereference::Dereferencing::new(msrv))); + store.register_late_pass(move |_| Box::new(dereference::Dereferencing::new(msrv()))); store.register_late_pass(|_| Box::new(option_if_let_else::OptionIfLetElse)); store.register_late_pass(|_| Box::new(future_not_send::FutureNotSend)); store.register_late_pass(|_| Box::new(if_let_mutex::IfLetMutex)); @@ -840,7 +802,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|_| Box::<vec_init_then_push::VecInitThenPush>::default()); store.register_late_pass(|_| Box::new(redundant_slicing::RedundantSlicing)); store.register_late_pass(|_| Box::new(from_str_radix_10::FromStrRadix10)); - store.register_late_pass(move |_| Box::new(if_then_some_else_none::IfThenSomeElseNone::new(msrv))); + store.register_late_pass(move |_| Box::new(if_then_some_else_none::IfThenSomeElseNone::new(msrv()))); store.register_late_pass(|_| Box::new(bool_assert_comparison::BoolAssertComparison)); store.register_early_pass(move || Box::new(module_style::ModStyle)); store.register_late_pass(|_| Box::new(unused_async::UnusedAsync)); @@ -865,14 +827,15 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: )) }); store.register_late_pass(move |_| Box::new(undocumented_unsafe_blocks::UndocumentedUnsafeBlocks)); - store.register_late_pass(move |_| Box::new(format_args::FormatArgs::new(msrv))); + let allow_mixed_uninlined = conf.allow_mixed_uninlined_format_args; + store.register_late_pass(move |_| Box::new(format_args::FormatArgs::new(msrv(), allow_mixed_uninlined))); store.register_late_pass(|_| Box::new(trailing_empty_array::TrailingEmptyArray)); store.register_early_pass(|| Box::new(octal_escapes::OctalEscapes)); store.register_late_pass(|_| Box::new(needless_late_init::NeedlessLateInit)); store.register_late_pass(|_| Box::new(return_self_not_must_use::ReturnSelfNotMustUse)); store.register_late_pass(|_| Box::new(init_numbered_fields::NumberedFields)); store.register_early_pass(|| Box::new(single_char_lifetime_names::SingleCharLifetimeNames)); - store.register_late_pass(move |_| Box::new(manual_bits::ManualBits::new(msrv))); + store.register_late_pass(move |_| Box::new(manual_bits::ManualBits::new(msrv()))); store.register_late_pass(|_| Box::new(default_union_representation::DefaultUnionRepresentation)); store.register_late_pass(|_| Box::<only_used_in_recursion::OnlyUsedInRecursion>::default()); let allow_dbg_in_tests = conf.allow_dbg_in_tests; @@ -896,20 +859,20 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|_| Box::new(rc_clone_in_vec_init::RcCloneInVecInit)); store.register_early_pass(|| Box::<duplicate_mod::DuplicateMod>::default()); store.register_early_pass(|| Box::new(unused_rounding::UnusedRounding)); - store.register_early_pass(move || Box::new(almost_complete_letter_range::AlmostCompleteLetterRange::new(msrv))); + store.register_early_pass(move || Box::new(almost_complete_letter_range::AlmostCompleteLetterRange::new(msrv()))); store.register_late_pass(|_| Box::new(swap_ptr_to_ref::SwapPtrToRef)); store.register_late_pass(|_| Box::new(mismatching_type_param_order::TypeParamMismatch)); store.register_late_pass(|_| Box::new(read_zero_byte_vec::ReadZeroByteVec)); store.register_late_pass(|_| Box::new(default_instead_of_iter_empty::DefaultIterEmpty)); - store.register_late_pass(move |_| Box::new(manual_rem_euclid::ManualRemEuclid::new(msrv))); - store.register_late_pass(move |_| Box::new(manual_retain::ManualRetain::new(msrv))); + store.register_late_pass(move |_| Box::new(manual_rem_euclid::ManualRemEuclid::new(msrv()))); + store.register_late_pass(move |_| Box::new(manual_retain::ManualRetain::new(msrv()))); let verbose_bit_mask_threshold = conf.verbose_bit_mask_threshold; store.register_late_pass(move |_| Box::new(operators::Operators::new(verbose_bit_mask_threshold))); store.register_late_pass(|_| Box::new(invalid_utf8_in_unchecked::InvalidUtf8InUnchecked)); store.register_late_pass(|_| Box::<std_instead_of_core::StdReexports>::default()); - store.register_late_pass(move |_| Box::new(instant_subtraction::InstantSubtraction::new(msrv))); + store.register_late_pass(move |_| Box::new(instant_subtraction::InstantSubtraction::new(msrv()))); store.register_late_pass(|_| Box::new(partialeq_to_none::PartialeqToNone)); - store.register_late_pass(move |_| Box::new(manual_clamp::ManualClamp::new(msrv))); + store.register_late_pass(move |_| Box::new(manual_clamp::ManualClamp::new(msrv()))); store.register_late_pass(|_| Box::new(manual_string_new::ManualStringNew)); store.register_late_pass(|_| Box::new(unused_peekable::UnusedPeekable)); store.register_early_pass(|| Box::new(multi_assignments::MultiAssignments)); @@ -920,7 +883,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|_| Box::new(missing_trait_methods::MissingTraitMethods)); store.register_late_pass(|_| Box::new(from_raw_with_void_ptr::FromRawWithVoidPtr)); store.register_late_pass(|_| Box::new(suspicious_xor_used_as_pow::ConfusingXorAndPow)); - store.register_late_pass(move |_| Box::new(manual_is_ascii_check::ManualIsAsciiCheck::new(msrv))); + store.register_late_pass(move |_| Box::new(manual_is_ascii_check::ManualIsAsciiCheck::new(msrv()))); // add lints here, do not remove this comment, it's used in `new_lint` } diff --git a/src/tools/clippy/clippy_lints/src/lifetimes.rs b/src/tools/clippy/clippy_lints/src/lifetimes.rs index 220941dcd5d..7cf1a6b8084 100644 --- a/src/tools/clippy/clippy_lints/src/lifetimes.rs +++ b/src/tools/clippy/clippy_lints/src/lifetimes.rs @@ -3,7 +3,7 @@ use clippy_utils::trait_ref_of_method; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_hir::intravisit::nested_filter::{self as hir_nested_filter, NestedFilter}; use rustc_hir::intravisit::{ - walk_fn_decl, walk_generic_param, walk_generics, walk_impl_item_ref, walk_item, walk_param_bound, + walk_fn_decl, walk_generic_arg, walk_generic_param, walk_generics, walk_impl_item_ref, walk_item, walk_param_bound, walk_poly_trait_ref, walk_trait_ref, walk_ty, Visitor, }; use rustc_hir::lang_items; @@ -481,7 +481,7 @@ impl<'a, 'tcx> Visitor<'tcx> for RefVisitor<'a, 'tcx> { sub_visitor.visit_fn_decl(decl); self.nested_elision_site_lts.append(&mut sub_visitor.all_lts()); }, - TyKind::TraitObject(bounds, ref lt, _) => { + TyKind::TraitObject(bounds, lt, _) => { if !lt.is_elided() { self.unelided_trait_object_lifetime = true; } @@ -497,14 +497,7 @@ impl<'a, 'tcx> Visitor<'tcx> for RefVisitor<'a, 'tcx> { if let GenericArg::Lifetime(l) = generic_arg && let LifetimeName::Param(def_id) = l.res { self.lifetime_generic_arg_spans.entry(def_id).or_insert(l.ident.span); } - // Replace with `walk_generic_arg` if/when https://github.com/rust-lang/rust/pull/103692 lands. - // walk_generic_arg(self, generic_arg); - match generic_arg { - GenericArg::Lifetime(lt) => self.visit_lifetime(lt), - GenericArg::Type(ty) => self.visit_ty(ty), - GenericArg::Const(ct) => self.visit_anon_const(&ct.value), - GenericArg::Infer(inf) => self.visit_infer(inf), - } + walk_generic_arg(self, generic_arg); } } diff --git a/src/tools/clippy/clippy_lints/src/macro_use.rs b/src/tools/clippy/clippy_lints/src/macro_use.rs index 594f6af76b3..e2e6a87a301 100644 --- a/src/tools/clippy/clippy_lints/src/macro_use.rs +++ b/src/tools/clippy/clippy_lints/src/macro_use.rs @@ -94,7 +94,10 @@ impl<'tcx> LateLintPass<'tcx> for MacroUseImports { let hir_id = item.hir_id(); let attrs = cx.tcx.hir().attrs(hir_id); if let Some(mac_attr) = attrs.iter().find(|attr| attr.has_name(sym::macro_use)); - if let Res::Def(DefKind::Mod, id) = path.res; + if let Some(id) = path.res.iter().find_map(|res| match res { + Res::Def(DefKind::Mod, id) => Some(id), + _ => None, + }); if !id.is_local(); then { for kid in cx.tcx.module_children(id).iter() { diff --git a/src/tools/clippy/clippy_lints/src/manual_bits.rs b/src/tools/clippy/clippy_lints/src/manual_bits.rs index 6655c92b1da..462d73cf0b9 100644 --- a/src/tools/clippy/clippy_lints/src/manual_bits.rs +++ b/src/tools/clippy/clippy_lints/src/manual_bits.rs @@ -1,12 +1,12 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::get_parent_expr; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_with_applicability; -use clippy_utils::{get_parent_expr, meets_msrv, msrvs}; use rustc_ast::ast::LitKind; use rustc_errors::Applicability; use rustc_hir::{BinOpKind, Expr, ExprKind, GenericArg, QPath}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty::{self, Ty}; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::sym; @@ -34,12 +34,12 @@ declare_clippy_lint! { #[derive(Clone)] pub struct ManualBits { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl ManualBits { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -48,7 +48,7 @@ impl_lint_pass!(ManualBits => [MANUAL_BITS]); impl<'tcx> LateLintPass<'tcx> for ManualBits { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { - if !meets_msrv(self.msrv, msrvs::MANUAL_BITS) { + if !self.msrv.meets(msrvs::MANUAL_BITS) { return; } diff --git a/src/tools/clippy/clippy_lints/src/manual_clamp.rs b/src/tools/clippy/clippy_lints/src/manual_clamp.rs index 02dc8755dd6..bb6d628af3b 100644 --- a/src/tools/clippy/clippy_lints/src/manual_clamp.rs +++ b/src/tools/clippy/clippy_lints/src/manual_clamp.rs @@ -1,28 +1,25 @@ +use clippy_utils::diagnostics::{span_lint_and_then, span_lint_hir_and_then}; +use clippy_utils::higher::If; +use clippy_utils::msrvs::{self, Msrv}; +use clippy_utils::sugg::Sugg; +use clippy_utils::ty::implements_trait; +use clippy_utils::visitors::is_const_evaluatable; +use clippy_utils::MaybePath; +use clippy_utils::{ + eq_expr_value, is_diag_trait_item, is_trait_method, path_res, path_to_local_id, peel_blocks, peel_blocks_with_stmt, +}; use itertools::Itertools; +use rustc_errors::Applicability; use rustc_errors::Diagnostic; use rustc_hir::{ def::Res, Arm, BinOpKind, Block, Expr, ExprKind, Guard, HirId, PatKind, PathSegment, PrimTy, QPath, StmtKind, }; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty::Ty; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::{symbol::sym, Span}; use std::ops::Deref; -use clippy_utils::{ - diagnostics::{span_lint_and_then, span_lint_hir_and_then}, - eq_expr_value, - higher::If, - is_diag_trait_item, is_trait_method, meets_msrv, msrvs, path_res, path_to_local_id, peel_blocks, - peel_blocks_with_stmt, - sugg::Sugg, - ty::implements_trait, - visitors::is_const_evaluatable, - MaybePath, -}; -use rustc_errors::Applicability; - declare_clippy_lint! { /// ### What it does /// Identifies good opportunities for a clamp function from std or core, and suggests using it. @@ -87,11 +84,11 @@ declare_clippy_lint! { impl_lint_pass!(ManualClamp => [MANUAL_CLAMP]); pub struct ManualClamp { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl ManualClamp { - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -114,7 +111,7 @@ struct InputMinMax<'tcx> { impl<'tcx> LateLintPass<'tcx> for ManualClamp { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) { - if !meets_msrv(self.msrv, msrvs::CLAMP) { + if !self.msrv.meets(msrvs::CLAMP) { return; } if !expr.span.from_expansion() { @@ -130,7 +127,7 @@ impl<'tcx> LateLintPass<'tcx> for ManualClamp { } fn check_block(&mut self, cx: &LateContext<'tcx>, block: &'tcx Block<'tcx>) { - if !meets_msrv(self.msrv, msrvs::CLAMP) { + if !self.msrv.meets(msrvs::CLAMP) { return; } for suggestion in is_two_if_pattern(cx, block) { diff --git a/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs b/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs index bb8c142f8e4..5ab049d8d13 100644 --- a/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs +++ b/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs @@ -1,15 +1,12 @@ +use clippy_utils::msrvs::{self, Msrv}; +use clippy_utils::{diagnostics::span_lint_and_sugg, in_constant, macros::root_macro_call, source::snippet}; use rustc_ast::LitKind::{Byte, Char}; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind, PatKind, RangeEnd}; use rustc_lint::{LateContext, LateLintPass}; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::{def_id::DefId, sym}; -use clippy_utils::{ - diagnostics::span_lint_and_sugg, in_constant, macros::root_macro_call, meets_msrv, msrvs, source::snippet, -}; - declare_clippy_lint! { /// ### What it does /// Suggests to use dedicated built-in methods, @@ -45,12 +42,12 @@ declare_clippy_lint! { impl_lint_pass!(ManualIsAsciiCheck => [MANUAL_IS_ASCII_CHECK]); pub struct ManualIsAsciiCheck { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl ManualIsAsciiCheck { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -70,11 +67,11 @@ enum CharRange { impl<'tcx> LateLintPass<'tcx> for ManualIsAsciiCheck { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { - if !meets_msrv(self.msrv, msrvs::IS_ASCII_DIGIT) { + if !self.msrv.meets(msrvs::IS_ASCII_DIGIT) { return; } - if in_constant(cx, expr.hir_id) && !meets_msrv(self.msrv, msrvs::IS_ASCII_DIGIT_CONST) { + if in_constant(cx, expr.hir_id) && !self.msrv.meets(msrvs::IS_ASCII_DIGIT_CONST) { return; } diff --git a/src/tools/clippy/clippy_lints/src/manual_let_else.rs b/src/tools/clippy/clippy_lints/src/manual_let_else.rs index 1846596fa4c..874d36ca9f4 100644 --- a/src/tools/clippy/clippy_lints/src/manual_let_else.rs +++ b/src/tools/clippy/clippy_lints/src/manual_let_else.rs @@ -1,16 +1,16 @@ use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::higher::IfLetOrMatch; -use clippy_utils::source::snippet_opt; +use clippy_utils::msrvs::{self, Msrv}; +use clippy_utils::peel_blocks; +use clippy_utils::source::snippet_with_context; use clippy_utils::ty::is_type_diagnostic_item; use clippy_utils::visitors::{for_each_expr, Descend}; -use clippy_utils::{meets_msrv, msrvs, peel_blocks}; use if_chain::if_chain; use rustc_data_structures::fx::FxHashSet; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind, MatchSource, Pat, PatKind, QPath, Stmt, StmtKind}; use rustc_lint::{LateContext, LateLintPass, LintContext}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::symbol::sym; use rustc_span::Span; @@ -50,13 +50,13 @@ declare_clippy_lint! { } pub struct ManualLetElse { - msrv: Option<RustcVersion>, + msrv: Msrv, matches_behaviour: MatchLintBehaviour, } impl ManualLetElse { #[must_use] - pub fn new(msrv: Option<RustcVersion>, matches_behaviour: MatchLintBehaviour) -> Self { + pub fn new(msrv: Msrv, matches_behaviour: MatchLintBehaviour) -> Self { Self { msrv, matches_behaviour, @@ -69,7 +69,7 @@ impl_lint_pass!(ManualLetElse => [MANUAL_LET_ELSE]); impl<'tcx> LateLintPass<'tcx> for ManualLetElse { fn check_stmt(&mut self, cx: &LateContext<'_>, stmt: &'tcx Stmt<'tcx>) { let if_let_or_match = if_chain! { - if meets_msrv(self.msrv, msrvs::LET_ELSE); + if self.msrv.meets(msrvs::LET_ELSE); if !in_external_macro(cx.sess(), stmt.span); if let StmtKind::Local(local) = stmt.kind; if let Some(init) = local.init; @@ -141,20 +141,18 @@ fn emit_manual_let_else(cx: &LateContext<'_>, span: Span, expr: &Expr<'_>, pat: // * unused binding collision detection with existing ones // * putting patterns with at the top level | inside () // for this to be machine applicable. - let app = Applicability::HasPlaceholders; + let mut app = Applicability::HasPlaceholders; + let (sn_pat, _) = snippet_with_context(cx, pat.span, span.ctxt(), "", &mut app); + let (sn_expr, _) = snippet_with_context(cx, expr.span, span.ctxt(), "", &mut app); + let (sn_else, _) = snippet_with_context(cx, else_body.span, span.ctxt(), "", &mut app); - if let Some(sn_pat) = snippet_opt(cx, pat.span) && - let Some(sn_expr) = snippet_opt(cx, expr.span) && - let Some(sn_else) = snippet_opt(cx, else_body.span) - { - let else_bl = if matches!(else_body.kind, ExprKind::Block(..)) { - sn_else - } else { - format!("{{ {sn_else} }}") - }; - let sugg = format!("let {sn_pat} = {sn_expr} else {else_bl};"); - diag.span_suggestion(span, "consider writing", sugg, app); - } + let else_bl = if matches!(else_body.kind, ExprKind::Block(..)) { + sn_else.into_owned() + } else { + format!("{{ {sn_else} }}") + }; + let sugg = format!("let {sn_pat} = {sn_expr} else {else_bl};"); + diag.span_suggestion(span, "consider writing", sugg, app); }, ); } 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 4877cee0cc1..bca193be9e7 100644 --- a/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs +++ b/src/tools/clippy/clippy_lints/src/manual_non_exhaustive.rs @@ -1,6 +1,7 @@ use clippy_utils::diagnostics::{span_lint_and_then, span_lint_hir_and_then}; +use clippy_utils::is_doc_hidden; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_opt; -use clippy_utils::{is_doc_hidden, meets_msrv, msrvs}; use rustc_ast::ast::{self, VisibilityKind}; use rustc_data_structures::fx::FxHashSet; use rustc_errors::Applicability; @@ -8,7 +9,6 @@ use rustc_hir::def::{CtorKind, CtorOf, DefKind, Res}; use rustc_hir::{self as hir, Expr, ExprKind, QPath}; use rustc_lint::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext}; use rustc_middle::ty::DefIdTree; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::def_id::{DefId, LocalDefId}; use rustc_span::{sym, Span}; @@ -63,12 +63,12 @@ declare_clippy_lint! { #[expect(clippy::module_name_repetitions)] pub struct ManualNonExhaustiveStruct { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl ManualNonExhaustiveStruct { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -77,14 +77,14 @@ impl_lint_pass!(ManualNonExhaustiveStruct => [MANUAL_NON_EXHAUSTIVE]); #[expect(clippy::module_name_repetitions)] pub struct ManualNonExhaustiveEnum { - msrv: Option<RustcVersion>, + msrv: Msrv, constructed_enum_variants: FxHashSet<(DefId, DefId)>, potential_enums: Vec<(LocalDefId, LocalDefId, Span, Span)>, } impl ManualNonExhaustiveEnum { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv, constructed_enum_variants: FxHashSet::default(), @@ -97,7 +97,7 @@ impl_lint_pass!(ManualNonExhaustiveEnum => [MANUAL_NON_EXHAUSTIVE]); impl EarlyLintPass for ManualNonExhaustiveStruct { fn check_item(&mut self, cx: &EarlyContext<'_>, item: &ast::Item) { - if !meets_msrv(self.msrv, msrvs::NON_EXHAUSTIVE) { + if !self.msrv.meets(msrvs::NON_EXHAUSTIVE) { return; } @@ -149,7 +149,7 @@ impl EarlyLintPass for ManualNonExhaustiveStruct { impl<'tcx> LateLintPass<'tcx> for ManualNonExhaustiveEnum { fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'_>) { - if !meets_msrv(self.msrv, msrvs::NON_EXHAUSTIVE) { + if !self.msrv.meets(msrvs::NON_EXHAUSTIVE) { return; } diff --git a/src/tools/clippy/clippy_lints/src/manual_rem_euclid.rs b/src/tools/clippy/clippy_lints/src/manual_rem_euclid.rs index 6f25a2ed8e4..8d447c37150 100644 --- a/src/tools/clippy/clippy_lints/src/manual_rem_euclid.rs +++ b/src/tools/clippy/clippy_lints/src/manual_rem_euclid.rs @@ -1,12 +1,12 @@ use clippy_utils::consts::{constant_full_int, FullInt}; use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_with_applicability; -use clippy_utils::{in_constant, meets_msrv, msrvs, path_to_local}; +use clippy_utils::{in_constant, path_to_local}; use rustc_errors::Applicability; use rustc_hir::{BinOpKind, Expr, ExprKind, Node, TyKind}; use rustc_lint::{LateContext, LateLintPass, LintContext}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; declare_clippy_lint! { @@ -34,12 +34,12 @@ declare_clippy_lint! { } pub struct ManualRemEuclid { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl ManualRemEuclid { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -48,11 +48,11 @@ impl_lint_pass!(ManualRemEuclid => [MANUAL_REM_EUCLID]); impl<'tcx> LateLintPass<'tcx> for ManualRemEuclid { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { - if !meets_msrv(self.msrv, msrvs::REM_EUCLID) { + if !self.msrv.meets(msrvs::REM_EUCLID) { return; } - if in_constant(cx, expr.hir_id) && !meets_msrv(self.msrv, msrvs::REM_EUCLID_CONST) { + if in_constant(cx, expr.hir_id) && !self.msrv.meets(msrvs::REM_EUCLID_CONST) { return; } diff --git a/src/tools/clippy/clippy_lints/src/manual_retain.rs b/src/tools/clippy/clippy_lints/src/manual_retain.rs index d6438ca7fec..c1e6c82487d 100644 --- a/src/tools/clippy/clippy_lints/src/manual_retain.rs +++ b/src/tools/clippy/clippy_lints/src/manual_retain.rs @@ -1,8 +1,8 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet; use clippy_utils::ty::{is_type_diagnostic_item, is_type_lang_item}; use clippy_utils::{get_parent_expr, match_def_path, paths, SpanlessEq}; -use clippy_utils::{meets_msrv, msrvs}; use rustc_errors::Applicability; use rustc_hir as hir; use rustc_hir::def_id::DefId; @@ -50,12 +50,12 @@ declare_clippy_lint! { } pub struct ManualRetain { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl ManualRetain { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -71,9 +71,9 @@ impl<'tcx> LateLintPass<'tcx> for ManualRetain { && let hir::ExprKind::MethodCall(_, target_expr, [], _) = &collect_expr.kind && let Some(collect_def_id) = cx.typeck_results().type_dependent_def_id(collect_expr.hir_id) && match_def_path(cx, collect_def_id, &paths::CORE_ITER_COLLECT) { - check_into_iter(cx, parent_expr, left_expr, target_expr, self.msrv); - check_iter(cx, parent_expr, left_expr, target_expr, self.msrv); - check_to_owned(cx, parent_expr, left_expr, target_expr, self.msrv); + check_into_iter(cx, parent_expr, left_expr, target_expr, &self.msrv); + check_iter(cx, parent_expr, left_expr, target_expr, &self.msrv); + check_to_owned(cx, parent_expr, left_expr, target_expr, &self.msrv); } } @@ -85,7 +85,7 @@ fn check_into_iter( parent_expr: &hir::Expr<'_>, left_expr: &hir::Expr<'_>, target_expr: &hir::Expr<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { if let hir::ExprKind::MethodCall(_, into_iter_expr, [_], _) = &target_expr.kind && let Some(filter_def_id) = cx.typeck_results().type_dependent_def_id(target_expr.hir_id) @@ -104,7 +104,7 @@ fn check_iter( parent_expr: &hir::Expr<'_>, left_expr: &hir::Expr<'_>, target_expr: &hir::Expr<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { if let hir::ExprKind::MethodCall(_, filter_expr, [], _) = &target_expr.kind && let Some(copied_def_id) = cx.typeck_results().type_dependent_def_id(target_expr.hir_id) @@ -127,9 +127,9 @@ fn check_to_owned( parent_expr: &hir::Expr<'_>, left_expr: &hir::Expr<'_>, target_expr: &hir::Expr<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { - if meets_msrv(msrv, msrvs::STRING_RETAIN) + if msrv.meets(msrvs::STRING_RETAIN) && let hir::ExprKind::MethodCall(_, filter_expr, [], _) = &target_expr.kind && let Some(to_owned_def_id) = cx.typeck_results().type_dependent_def_id(target_expr.hir_id) && match_def_path(cx, to_owned_def_id, &paths::TO_OWNED_METHOD) @@ -215,10 +215,10 @@ fn match_acceptable_def_path(cx: &LateContext<'_>, collect_def_id: DefId) -> boo .any(|&method| match_def_path(cx, collect_def_id, method)) } -fn match_acceptable_type(cx: &LateContext<'_>, expr: &hir::Expr<'_>, msrv: Option<RustcVersion>) -> bool { +fn match_acceptable_type(cx: &LateContext<'_>, expr: &hir::Expr<'_>, msrv: &Msrv) -> bool { let expr_ty = cx.typeck_results().expr_ty(expr).peel_refs(); ACCEPTABLE_TYPES.iter().any(|(ty, acceptable_msrv)| { is_type_diagnostic_item(cx, expr_ty, *ty) - && acceptable_msrv.map_or(true, |acceptable_msrv| meets_msrv(msrv, acceptable_msrv)) + && acceptable_msrv.map_or(true, |acceptable_msrv| msrv.meets(acceptable_msrv)) }) } diff --git a/src/tools/clippy/clippy_lints/src/manual_strip.rs b/src/tools/clippy/clippy_lints/src/manual_strip.rs index 0976940afac..de166b9765f 100644 --- a/src/tools/clippy/clippy_lints/src/manual_strip.rs +++ b/src/tools/clippy/clippy_lints/src/manual_strip.rs @@ -1,8 +1,9 @@ use clippy_utils::consts::{constant, Constant}; use clippy_utils::diagnostics::{multispan_sugg, span_lint_and_then}; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet; use clippy_utils::usage::mutated_variables; -use clippy_utils::{eq_expr_value, higher, match_def_path, meets_msrv, msrvs, paths}; +use clippy_utils::{eq_expr_value, higher, match_def_path, paths}; use if_chain::if_chain; use rustc_ast::ast::LitKind; use rustc_hir::def::Res; @@ -11,7 +12,6 @@ use rustc_hir::BinOpKind; use rustc_hir::{BorrowKind, Expr, ExprKind}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::source_map::Spanned; use rustc_span::Span; @@ -48,12 +48,12 @@ declare_clippy_lint! { } pub struct ManualStrip { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl ManualStrip { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -68,7 +68,7 @@ enum StripKind { impl<'tcx> LateLintPass<'tcx> for ManualStrip { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { - if !meets_msrv(self.msrv, msrvs::STR_STRIP_PREFIX) { + if !self.msrv.meets(msrvs::STR_STRIP_PREFIX) { return; } diff --git a/src/tools/clippy/clippy_lints/src/matches/mod.rs b/src/tools/clippy/clippy_lints/src/matches/mod.rs index 7d8171ead89..7b15a307fec 100644 --- a/src/tools/clippy/clippy_lints/src/matches/mod.rs +++ b/src/tools/clippy/clippy_lints/src/matches/mod.rs @@ -23,13 +23,13 @@ mod single_match; mod try_err; mod wild_in_or_pats; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::{snippet_opt, walk_span_to_context}; -use clippy_utils::{higher, in_constant, is_span_match, meets_msrv, msrvs}; +use clippy_utils::{higher, in_constant, is_span_match}; use rustc_hir::{Arm, Expr, ExprKind, Local, MatchSource, Pat}; use rustc_lexer::{tokenize, TokenKind}; use rustc_lint::{LateContext, LateLintPass, LintContext}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::{Span, SpanData, SyntaxContext}; @@ -930,13 +930,13 @@ declare_clippy_lint! { #[derive(Default)] pub struct Matches { - msrv: Option<RustcVersion>, + msrv: Msrv, infallible_destructuring_match_linted: bool, } impl Matches { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv, ..Matches::default() @@ -1000,9 +1000,7 @@ impl<'tcx> LateLintPass<'tcx> for Matches { if !from_expansion && !contains_cfg_arm(cx, expr, ex, arms) { if source == MatchSource::Normal { - if !(meets_msrv(self.msrv, msrvs::MATCHES_MACRO) - && match_like_matches::check_match(cx, expr, ex, arms)) - { + if !(self.msrv.meets(msrvs::MATCHES_MACRO) && match_like_matches::check_match(cx, expr, ex, arms)) { match_same_arms::check(cx, arms); } @@ -1034,7 +1032,7 @@ impl<'tcx> LateLintPass<'tcx> for Matches { collapsible_match::check_if_let(cx, if_let.let_pat, if_let.if_then, if_let.if_else); if !from_expansion { if let Some(else_expr) = if_let.if_else { - if meets_msrv(self.msrv, msrvs::MATCHES_MACRO) { + if self.msrv.meets(msrvs::MATCHES_MACRO) { match_like_matches::check_if_let( cx, expr, diff --git a/src/tools/clippy/clippy_lints/src/matches/try_err.rs b/src/tools/clippy/clippy_lints/src/matches/try_err.rs index c6cba81d871..704c34c32bf 100644 --- a/src/tools/clippy/clippy_lints/src/matches/try_err.rs +++ b/src/tools/clippy/clippy_lints/src/matches/try_err.rs @@ -1,7 +1,7 @@ use clippy_utils::diagnostics::span_lint_and_sugg; use clippy_utils::source::snippet_with_applicability; use clippy_utils::ty::is_type_diagnostic_item; -use clippy_utils::{get_parent_expr, is_res_lang_ctor, match_def_path, path_res, paths}; +use clippy_utils::{get_parent_expr, is_res_lang_ctor, path_res}; use if_chain::if_chain; use rustc_errors::Applicability; use rustc_hir::LangItem::ResultErr; @@ -107,7 +107,7 @@ fn result_error_type<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<Ty<'t fn poll_result_error_type<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<Ty<'tcx>> { if_chain! { if let ty::Adt(def, subst) = ty.kind(); - if match_def_path(cx, def.did(), &paths::POLL); + if cx.tcx.lang_items().get(LangItem::Poll) == Some(def.did()); let ready_ty = subst.type_at(0); if let ty::Adt(ready_def, ready_subst) = ready_ty.kind(); @@ -124,7 +124,7 @@ fn poll_result_error_type<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option< fn poll_option_result_error_type<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<Ty<'tcx>> { if_chain! { if let ty::Adt(def, subst) = ty.kind(); - if match_def_path(cx, def.did(), &paths::POLL); + if cx.tcx.lang_items().get(LangItem::Poll) == Some(def.did()); let ready_ty = subst.type_at(0); if let ty::Adt(ready_def, ready_subst) = ready_ty.kind(); diff --git a/src/tools/clippy/clippy_lints/src/mem_replace.rs b/src/tools/clippy/clippy_lints/src/mem_replace.rs index 0c4d9f100f7..35024ec1224 100644 --- a/src/tools/clippy/clippy_lints/src/mem_replace.rs +++ b/src/tools/clippy/clippy_lints/src/mem_replace.rs @@ -1,14 +1,14 @@ use clippy_utils::diagnostics::{span_lint_and_help, span_lint_and_sugg, span_lint_and_then}; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::{snippet, snippet_with_applicability}; use clippy_utils::ty::is_non_aggregate_primitive_type; -use clippy_utils::{is_default_equivalent, is_res_lang_ctor, meets_msrv, msrvs, path_res}; +use clippy_utils::{is_default_equivalent, is_res_lang_ctor, path_res}; use if_chain::if_chain; use rustc_errors::Applicability; use rustc_hir::LangItem::OptionNone; use rustc_hir::{BorrowKind, Expr, ExprKind, Mutability, QPath}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::source_map::Span; use rustc_span::symbol::sym; @@ -227,12 +227,12 @@ fn check_replace_with_default(cx: &LateContext<'_>, src: &Expr<'_>, dest: &Expr< } pub struct MemReplace { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl MemReplace { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -248,7 +248,7 @@ impl<'tcx> LateLintPass<'tcx> for MemReplace { then { check_replace_option_with_none(cx, src, dest, expr.span); check_replace_with_uninit(cx, src, dest, expr.span); - if meets_msrv(self.msrv, msrvs::MEM_TAKE) { + if self.msrv.meets(msrvs::MEM_TAKE) { check_replace_with_default(cx, src, dest, expr.span); } } diff --git a/src/tools/clippy/clippy_lints/src/methods/cloned_instead_of_copied.rs b/src/tools/clippy/clippy_lints/src/methods/cloned_instead_of_copied.rs index e9aeab2d5b6..4e6ec61f6a8 100644 --- a/src/tools/clippy/clippy_lints/src/methods/cloned_instead_of_copied.rs +++ b/src/tools/clippy/clippy_lints/src/methods/cloned_instead_of_copied.rs @@ -1,25 +1,25 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::is_trait_method; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::ty::{get_iterator_item_ty, is_copy}; -use clippy_utils::{is_trait_method, meets_msrv, msrvs}; use rustc_errors::Applicability; use rustc_hir::Expr; use rustc_lint::LateContext; use rustc_middle::ty; -use rustc_semver::RustcVersion; use rustc_span::{sym, Span}; use super::CLONED_INSTEAD_OF_COPIED; -pub fn check(cx: &LateContext<'_>, expr: &Expr<'_>, recv: &Expr<'_>, span: Span, msrv: Option<RustcVersion>) { +pub fn check(cx: &LateContext<'_>, expr: &Expr<'_>, recv: &Expr<'_>, span: Span, msrv: &Msrv) { let recv_ty = cx.typeck_results().expr_ty_adjusted(recv); let inner_ty = match recv_ty.kind() { // `Option<T>` -> `T` ty::Adt(adt, subst) - if cx.tcx.is_diagnostic_item(sym::Option, adt.did()) && meets_msrv(msrv, msrvs::OPTION_COPIED) => + if cx.tcx.is_diagnostic_item(sym::Option, adt.did()) && msrv.meets(msrvs::OPTION_COPIED) => { subst.type_at(0) }, - _ if is_trait_method(cx, expr, sym::Iterator) && meets_msrv(msrv, msrvs::ITERATOR_COPIED) => { + _ if is_trait_method(cx, expr, sym::Iterator) && msrv.meets(msrvs::ITERATOR_COPIED) => { match get_iterator_item_ty(cx, recv_ty) { // <T as Iterator>::Item Some(ty) => ty, diff --git a/src/tools/clippy/clippy_lints/src/methods/err_expect.rs b/src/tools/clippy/clippy_lints/src/methods/err_expect.rs index 720d9a68c85..ae03da0d3f9 100644 --- a/src/tools/clippy/clippy_lints/src/methods/err_expect.rs +++ b/src/tools/clippy/clippy_lints/src/methods/err_expect.rs @@ -1,27 +1,27 @@ use super::ERR_EXPECT; use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::ty::has_debug_impl; -use clippy_utils::{meets_msrv, msrvs, ty::is_type_diagnostic_item}; +use clippy_utils::ty::is_type_diagnostic_item; use rustc_errors::Applicability; use rustc_lint::LateContext; use rustc_middle::ty; use rustc_middle::ty::Ty; -use rustc_semver::RustcVersion; use rustc_span::{sym, Span}; pub(super) fn check( cx: &LateContext<'_>, _expr: &rustc_hir::Expr<'_>, recv: &rustc_hir::Expr<'_>, - msrv: Option<RustcVersion>, expect_span: Span, err_span: Span, + msrv: &Msrv, ) { if_chain! { if is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(recv), sym::Result); // Test the version to make sure the lint can be showed (expect_err has been // introduced in rust 1.17.0 : https://github.com/rust-lang/rust/pull/38982) - if meets_msrv(msrv, msrvs::EXPECT_ERR); + if msrv.meets(msrvs::EXPECT_ERR); // Grabs the `Result<T, E>` type let result_type = cx.typeck_results().expr_ty(recv); diff --git a/src/tools/clippy/clippy_lints/src/methods/filter_map_next.rs b/src/tools/clippy/clippy_lints/src/methods/filter_map_next.rs index ddf8a1f09b8..175e04f8ac0 100644 --- a/src/tools/clippy/clippy_lints/src/methods/filter_map_next.rs +++ b/src/tools/clippy/clippy_lints/src/methods/filter_map_next.rs @@ -1,10 +1,10 @@ use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg}; +use clippy_utils::is_trait_method; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet; -use clippy_utils::{is_trait_method, meets_msrv, msrvs}; use rustc_errors::Applicability; use rustc_hir as hir; use rustc_lint::LateContext; -use rustc_semver::RustcVersion; use rustc_span::sym; use super::FILTER_MAP_NEXT; @@ -14,10 +14,10 @@ pub(super) fn check<'tcx>( expr: &'tcx hir::Expr<'_>, recv: &'tcx hir::Expr<'_>, arg: &'tcx hir::Expr<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { if is_trait_method(cx, expr, sym::Iterator) { - if !meets_msrv(msrv, msrvs::ITERATOR_FIND_MAP) { + if !msrv.meets(msrvs::ITERATOR_FIND_MAP) { return; } diff --git a/src/tools/clippy/clippy_lints/src/methods/is_digit_ascii_radix.rs b/src/tools/clippy/clippy_lints/src/methods/is_digit_ascii_radix.rs index 304024e8066..301aff5ae6a 100644 --- a/src/tools/clippy/clippy_lints/src/methods/is_digit_ascii_radix.rs +++ b/src/tools/clippy/clippy_lints/src/methods/is_digit_ascii_radix.rs @@ -1,23 +1,22 @@ //! Lint for `c.is_digit(10)` use super::IS_DIGIT_ASCII_RADIX; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::{ - consts::constant_full_int, consts::FullInt, diagnostics::span_lint_and_sugg, meets_msrv, msrvs, - source::snippet_with_applicability, + consts::constant_full_int, consts::FullInt, diagnostics::span_lint_and_sugg, source::snippet_with_applicability, }; use rustc_errors::Applicability; use rustc_hir::Expr; use rustc_lint::LateContext; -use rustc_semver::RustcVersion; pub(super) fn check<'tcx>( cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>, self_arg: &'tcx Expr<'_>, radix: &'tcx Expr<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { - if !meets_msrv(msrv, msrvs::IS_ASCII_DIGIT) { + if !msrv.meets(msrvs::IS_ASCII_DIGIT) { return; } diff --git a/src/tools/clippy/clippy_lints/src/methods/map_clone.rs b/src/tools/clippy/clippy_lints/src/methods/map_clone.rs index 6bc783c6d50..52cc1e0464b 100644 --- a/src/tools/clippy/clippy_lints/src/methods/map_clone.rs +++ b/src/tools/clippy/clippy_lints/src/methods/map_clone.rs @@ -1,7 +1,8 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_with_applicability; use clippy_utils::ty::{is_copy, is_type_diagnostic_item}; -use clippy_utils::{is_diag_trait_item, meets_msrv, msrvs, peel_blocks}; +use clippy_utils::{is_diag_trait_item, peel_blocks}; use if_chain::if_chain; use rustc_errors::Applicability; use rustc_hir as hir; @@ -9,19 +10,12 @@ use rustc_lint::LateContext; use rustc_middle::mir::Mutability; use rustc_middle::ty; use rustc_middle::ty::adjustment::Adjust; -use rustc_semver::RustcVersion; use rustc_span::symbol::Ident; use rustc_span::{sym, Span}; use super::MAP_CLONE; -pub(super) fn check( - cx: &LateContext<'_>, - e: &hir::Expr<'_>, - recv: &hir::Expr<'_>, - arg: &hir::Expr<'_>, - msrv: Option<RustcVersion>, -) { +pub(super) fn check(cx: &LateContext<'_>, e: &hir::Expr<'_>, recv: &hir::Expr<'_>, arg: &hir::Expr<'_>, msrv: &Msrv) { if_chain! { if let Some(method_id) = cx.typeck_results().type_dependent_def_id(e.hir_id); if cx.tcx.impl_of_method(method_id) @@ -97,10 +91,10 @@ fn lint_needless_cloning(cx: &LateContext<'_>, root: Span, receiver: Span) { ); } -fn lint_explicit_closure(cx: &LateContext<'_>, replace: Span, root: Span, is_copy: bool, msrv: Option<RustcVersion>) { +fn lint_explicit_closure(cx: &LateContext<'_>, replace: Span, root: Span, is_copy: bool, msrv: &Msrv) { let mut applicability = Applicability::MachineApplicable; - let (message, sugg_method) = if is_copy && meets_msrv(msrv, msrvs::ITERATOR_COPIED) { + let (message, sugg_method) = if is_copy && msrv.meets(msrvs::ITERATOR_COPIED) { ("you are using an explicit closure for copying elements", "copied") } else { ("you are using an explicit closure for cloning elements", "cloned") diff --git a/src/tools/clippy/clippy_lints/src/methods/map_unwrap_or.rs b/src/tools/clippy/clippy_lints/src/methods/map_unwrap_or.rs index 74fdead216b..3122f72ee91 100644 --- a/src/tools/clippy/clippy_lints/src/methods/map_unwrap_or.rs +++ b/src/tools/clippy/clippy_lints/src/methods/map_unwrap_or.rs @@ -1,12 +1,11 @@ use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg}; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet; use clippy_utils::ty::is_type_diagnostic_item; use clippy_utils::usage::mutated_variables; -use clippy_utils::{meets_msrv, msrvs}; use rustc_errors::Applicability; use rustc_hir as hir; use rustc_lint::LateContext; -use rustc_semver::RustcVersion; use rustc_span::symbol::sym; use super::MAP_UNWRAP_OR; @@ -19,13 +18,13 @@ pub(super) fn check<'tcx>( recv: &'tcx hir::Expr<'_>, map_arg: &'tcx hir::Expr<'_>, unwrap_arg: &'tcx hir::Expr<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) -> bool { // lint if the caller of `map()` is an `Option` let is_option = is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(recv), sym::Option); let is_result = is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(recv), sym::Result); - if is_result && !meets_msrv(msrv, msrvs::RESULT_MAP_OR_ELSE) { + if is_result && !msrv.meets(msrvs::RESULT_MAP_OR_ELSE) { return false; } diff --git a/src/tools/clippy/clippy_lints/src/methods/mod.rs b/src/tools/clippy/clippy_lints/src/methods/mod.rs index 38165ab4fb2..d2913680cbb 100644 --- a/src/tools/clippy/clippy_lints/src/methods/mod.rs +++ b/src/tools/clippy/clippy_lints/src/methods/mod.rs @@ -104,8 +104,9 @@ mod zst_offset; use bind_instead_of_map::BindInsteadOfMap; use clippy_utils::consts::{constant, Constant}; use clippy_utils::diagnostics::{span_lint, span_lint_and_help}; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::ty::{contains_ty_adt_constructor_opaque, implements_trait, is_copy, is_type_diagnostic_item}; -use clippy_utils::{contains_return, is_bool, is_trait_method, iter_input_pats, meets_msrv, msrvs, return_ty}; +use clippy_utils::{contains_return, is_bool, is_trait_method, iter_input_pats, return_ty}; use if_chain::if_chain; use rustc_hir as hir; use rustc_hir::{Expr, ExprKind, TraitItem, TraitItemKind}; @@ -113,7 +114,6 @@ use rustc_hir_analysis::hir_ty_to_ty; use rustc_lint::{LateContext, LateLintPass, LintContext}; use rustc_middle::lint::in_external_macro; use rustc_middle::ty::{self, TraitRef, Ty}; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::{sym, Span}; @@ -3163,7 +3163,7 @@ declare_clippy_lint! { pub struct Methods { avoid_breaking_exported_api: bool, - msrv: Option<RustcVersion>, + msrv: Msrv, allow_expect_in_tests: bool, allow_unwrap_in_tests: bool, } @@ -3172,7 +3172,7 @@ impl Methods { #[must_use] pub fn new( avoid_breaking_exported_api: bool, - msrv: Option<RustcVersion>, + msrv: Msrv, allow_expect_in_tests: bool, allow_unwrap_in_tests: bool, ) -> Self { @@ -3325,7 +3325,7 @@ impl<'tcx> LateLintPass<'tcx> for Methods { single_char_add_str::check(cx, expr, receiver, args); into_iter_on_ref::check(cx, expr, method_span, method_call.ident.name, receiver); single_char_pattern::check(cx, expr, method_call.ident.name, receiver, args); - unnecessary_to_owned::check(cx, expr, method_call.ident.name, receiver, args, self.msrv); + unnecessary_to_owned::check(cx, expr, method_call.ident.name, receiver, args, &self.msrv); }, hir::ExprKind::Binary(op, lhs, rhs) if op.node == hir::BinOpKind::Eq || op.node == hir::BinOpKind::Ne => { let mut info = BinaryExprInfo { @@ -3501,7 +3501,7 @@ impl Methods { ("as_mut", []) => useless_asref::check(cx, expr, "as_mut", recv), ("as_ref", []) => useless_asref::check(cx, expr, "as_ref", recv), ("assume_init", []) => uninit_assumed_init::check(cx, expr, recv), - ("cloned", []) => cloned_instead_of_copied::check(cx, expr, recv, span, self.msrv), + ("cloned", []) => cloned_instead_of_copied::check(cx, expr, recv, span, &self.msrv), ("collect", []) if is_trait_method(cx, expr, sym::Iterator) => { needless_collect::check(cx, span, expr, recv, call_span); match method_call(recv) { @@ -3512,7 +3512,7 @@ impl Methods { map_collect_result_unit::check(cx, expr, m_recv, m_arg); }, Some(("take", take_self_arg, [take_arg], _, _)) => { - if meets_msrv(self.msrv, msrvs::STR_REPEAT) { + if self.msrv.meets(msrvs::STR_REPEAT) { manual_str_repeat::check(cx, expr, recv, take_self_arg, take_arg); } }, @@ -3539,7 +3539,7 @@ impl Methods { }, ("expect", [_]) => match method_call(recv) { Some(("ok", recv, [], _, _)) => ok_expect::check(cx, expr, recv), - Some(("err", recv, [], err_span, _)) => err_expect::check(cx, expr, recv, self.msrv, span, err_span), + Some(("err", recv, [], err_span, _)) => err_expect::check(cx, expr, recv, span, err_span, &self.msrv), _ => expect_used::check(cx, expr, recv, false, self.allow_expect_in_tests), }, ("expect_err", [_]) => expect_used::check(cx, expr, recv, true, self.allow_expect_in_tests), @@ -3578,7 +3578,7 @@ impl Methods { unit_hash::check(cx, expr, recv, arg); }, ("is_file", []) => filetype_is_file::check(cx, expr, recv), - ("is_digit", [radix]) => is_digit_ascii_radix::check(cx, expr, recv, radix, self.msrv), + ("is_digit", [radix]) => is_digit_ascii_radix::check(cx, expr, recv, radix, &self.msrv), ("is_none", []) => check_is_some_is_none(cx, expr, recv, false), ("is_some", []) => check_is_some_is_none(cx, expr, recv, true), ("iter" | "iter_mut" | "into_iter", []) => { @@ -3601,7 +3601,7 @@ impl Methods { }, (name @ ("map" | "map_err"), [m_arg]) => { if name == "map" { - map_clone::check(cx, expr, recv, m_arg, self.msrv); + map_clone::check(cx, expr, recv, m_arg, &self.msrv); if let Some((map_name @ ("iter" | "into_iter"), recv2, _, _, _)) = method_call(recv) { iter_kv_map::check(cx, map_name, expr, recv2, m_arg); } @@ -3610,8 +3610,8 @@ impl Methods { } if let Some((name, recv2, args, span2,_)) = method_call(recv) { match (name, args) { - ("as_mut", []) => option_as_ref_deref::check(cx, expr, recv2, m_arg, true, self.msrv), - ("as_ref", []) => option_as_ref_deref::check(cx, expr, recv2, m_arg, false, self.msrv), + ("as_mut", []) => option_as_ref_deref::check(cx, expr, recv2, m_arg, true, &self.msrv), + ("as_ref", []) => option_as_ref_deref::check(cx, expr, recv2, m_arg, false, &self.msrv), ("filter", [f_arg]) => { filter_map::check(cx, expr, recv2, f_arg, span2, recv, m_arg, span, false); }, @@ -3632,7 +3632,7 @@ impl Methods { match (name2, args2) { ("cloned", []) => iter_overeager_cloned::check(cx, expr, recv, recv2, false, false), ("filter", [arg]) => filter_next::check(cx, expr, recv2, arg), - ("filter_map", [arg]) => filter_map_next::check(cx, expr, recv2, arg, self.msrv), + ("filter_map", [arg]) => filter_map_next::check(cx, expr, recv2, arg, &self.msrv), ("iter", []) => iter_next_slice::check(cx, expr, recv2), ("skip", [arg]) => iter_skip_next::check(cx, expr, recv2, arg), ("skip_while", [_]) => skip_while_next::check(cx, expr), @@ -3680,10 +3680,10 @@ impl Methods { vec_resize_to_zero::check(cx, expr, count_arg, default_arg, span); }, ("seek", [arg]) => { - if meets_msrv(self.msrv, msrvs::SEEK_FROM_CURRENT) { + if self.msrv.meets(msrvs::SEEK_FROM_CURRENT) { seek_from_current::check(cx, expr, recv, arg); } - if meets_msrv(self.msrv, msrvs::SEEK_REWIND) { + if self.msrv.meets(msrvs::SEEK_REWIND) { seek_to_start_instead_of_rewind::check(cx, expr, recv, arg, span); } }, @@ -3699,7 +3699,7 @@ impl Methods { ("splitn" | "rsplitn", [count_arg, pat_arg]) => { if let Some((Constant::Int(count), _)) = constant(cx, cx.typeck_results(), count_arg) { suspicious_splitn::check(cx, name, expr, recv, count); - str_splitn::check(cx, name, expr, recv, pat_arg, count, self.msrv); + str_splitn::check(cx, name, expr, recv, pat_arg, count, &self.msrv); } }, ("splitn_mut" | "rsplitn_mut", [count_arg, _]) => { @@ -3717,7 +3717,7 @@ impl Methods { }, ("take", []) => needless_option_take::check(cx, expr, recv), ("then", [arg]) => { - if !meets_msrv(self.msrv, msrvs::BOOL_THEN_SOME) { + if !self.msrv.meets(msrvs::BOOL_THEN_SOME) { return; } unnecessary_lazy_eval::check(cx, expr, recv, arg, "then_some"); @@ -3760,7 +3760,7 @@ impl Methods { }, ("unwrap_or_else", [u_arg]) => match method_call(recv) { Some(("map", recv, [map_arg], _, _)) - if map_unwrap_or::check(cx, expr, recv, map_arg, u_arg, self.msrv) => {}, + if map_unwrap_or::check(cx, expr, recv, map_arg, u_arg, &self.msrv) => {}, _ => { unwrap_or_else_default::check(cx, expr, recv, u_arg); unnecessary_lazy_eval::check(cx, expr, recv, u_arg, "unwrap_or"); diff --git a/src/tools/clippy/clippy_lints/src/methods/option_as_ref_deref.rs b/src/tools/clippy/clippy_lints/src/methods/option_as_ref_deref.rs index e6eb64bcbde..3e33f919337 100644 --- a/src/tools/clippy/clippy_lints/src/methods/option_as_ref_deref.rs +++ b/src/tools/clippy/clippy_lints/src/methods/option_as_ref_deref.rs @@ -1,13 +1,13 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet; use clippy_utils::ty::is_type_diagnostic_item; -use clippy_utils::{match_def_path, meets_msrv, msrvs, path_to_local_id, paths, peel_blocks}; +use clippy_utils::{match_def_path, path_to_local_id, paths, peel_blocks}; use if_chain::if_chain; use rustc_errors::Applicability; use rustc_hir as hir; use rustc_lint::LateContext; use rustc_middle::ty; -use rustc_semver::RustcVersion; use rustc_span::sym; use super::OPTION_AS_REF_DEREF; @@ -19,9 +19,9 @@ pub(super) fn check( as_ref_recv: &hir::Expr<'_>, map_arg: &hir::Expr<'_>, is_mut: bool, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { - if !meets_msrv(msrv, msrvs::OPTION_AS_DEREF) { + if !msrv.meets(msrvs::OPTION_AS_DEREF) { return; } diff --git a/src/tools/clippy/clippy_lints/src/methods/option_map_unwrap_or.rs b/src/tools/clippy/clippy_lints/src/methods/option_map_unwrap_or.rs index 30421a6dd5a..910ee14855e 100644 --- a/src/tools/clippy/clippy_lints/src/methods/option_map_unwrap_or.rs +++ b/src/tools/clippy/clippy_lints/src/methods/option_map_unwrap_or.rs @@ -97,7 +97,7 @@ struct UnwrapVisitor<'a, 'tcx> { impl<'a, 'tcx> Visitor<'tcx> for UnwrapVisitor<'a, 'tcx> { type NestedFilter = nested_filter::All; - fn visit_path(&mut self, path: &'tcx Path<'_>, _id: HirId) { + fn visit_path(&mut self, path: &Path<'tcx>, _id: HirId) { self.identifiers.insert(ident(path)); walk_path(self, path); } @@ -116,7 +116,7 @@ struct MapExprVisitor<'a, 'tcx> { impl<'a, 'tcx> Visitor<'tcx> for MapExprVisitor<'a, 'tcx> { type NestedFilter = nested_filter::All; - fn visit_path(&mut self, path: &'tcx Path<'_>, _id: HirId) { + fn visit_path(&mut self, path: &Path<'tcx>, _id: HirId) { if self.identifiers.contains(&ident(path)) { self.found_identifier = true; return; diff --git a/src/tools/clippy/clippy_lints/src/methods/str_splitn.rs b/src/tools/clippy/clippy_lints/src/methods/str_splitn.rs index 1acac59144c..3c01ce1fecd 100644 --- a/src/tools/clippy/clippy_lints/src/methods/str_splitn.rs +++ b/src/tools/clippy/clippy_lints/src/methods/str_splitn.rs @@ -1,9 +1,10 @@ use clippy_utils::consts::{constant, Constant}; use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_and_then}; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_with_context; use clippy_utils::usage::local_used_after_expr; use clippy_utils::visitors::{for_each_expr_with_closures, Descend}; -use clippy_utils::{is_diag_item_method, match_def_path, meets_msrv, msrvs, path_to_local_id, paths}; +use clippy_utils::{is_diag_item_method, match_def_path, path_to_local_id, paths}; use core::ops::ControlFlow; use if_chain::if_chain; use rustc_errors::Applicability; @@ -12,7 +13,6 @@ use rustc_hir::{ }; use rustc_lint::LateContext; use rustc_middle::ty; -use rustc_semver::RustcVersion; use rustc_span::{sym, Span, Symbol, SyntaxContext}; use super::{MANUAL_SPLIT_ONCE, NEEDLESS_SPLITN}; @@ -24,7 +24,7 @@ pub(super) fn check( self_arg: &Expr<'_>, pat_arg: &Expr<'_>, count: u128, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { if count < 2 || !cx.typeck_results().expr_ty_adjusted(self_arg).peel_refs().is_str() { return; @@ -34,7 +34,7 @@ pub(super) fn check( IterUsageKind::Nth(n) => count > n + 1, IterUsageKind::NextTuple => count > 2, }; - let manual = count == 2 && meets_msrv(msrv, msrvs::STR_SPLIT_ONCE); + let manual = count == 2 && msrv.meets(msrvs::STR_SPLIT_ONCE); match parse_iter_usage(cx, expr.span.ctxt(), cx.tcx.hir().parent_iter(expr.hir_id)) { Some(usage) if needless(usage.kind) => lint_needless(cx, method_name, expr, self_arg, pat_arg), diff --git a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs index 7ff13b95626..17b0507682a 100644 --- a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs +++ b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs @@ -1,13 +1,11 @@ use super::implicit_clone::is_clone_like; use super::unnecessary_iter_cloned::{self, is_into_iter}; use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_opt; use clippy_utils::ty::{get_iterator_item_ty, implements_trait, is_copy, peel_mid_ty_refs}; use clippy_utils::visitors::find_all_ret_expressions; -use clippy_utils::{ - fn_def_id, get_parent_expr, is_diag_item_method, is_diag_trait_item, return_ty, -}; -use clippy_utils::{meets_msrv, msrvs}; +use clippy_utils::{fn_def_id, get_parent_expr, is_diag_item_method, is_diag_trait_item, return_ty}; use rustc_errors::Applicability; use rustc_hir::{def_id::DefId, BorrowKind, Expr, ExprKind, ItemKind, Node}; use rustc_hir_typeck::{FnCtxt, Inherited}; @@ -16,14 +14,9 @@ use rustc_lint::LateContext; use rustc_middle::mir::Mutability; use rustc_middle::ty::adjustment::{Adjust, Adjustment, OverloadedDeref}; use rustc_middle::ty::subst::{GenericArg, GenericArgKind, SubstsRef}; -use rustc_middle::ty::EarlyBinder; -use rustc_middle::ty::{self, Clause, ParamTy, PredicateKind, ProjectionPredicate, TraitPredicate, Ty}; -use rustc_semver::RustcVersion; +use rustc_middle::ty::{self, Clause, EarlyBinder, ParamTy, PredicateKind, ProjectionPredicate, TraitPredicate, Ty}; use rustc_span::{sym, Symbol}; -use rustc_trait_selection::traits::{ - query::evaluate_obligation::InferCtxtExt as _, Obligation, ObligationCause, -}; -use std::cmp::max; +use rustc_trait_selection::traits::{query::evaluate_obligation::InferCtxtExt as _, Obligation, ObligationCause}; use super::UNNECESSARY_TO_OWNED; @@ -33,7 +26,7 @@ pub fn check<'tcx>( method_name: Symbol, receiver: &'tcx Expr<'_>, args: &'tcx [Expr<'_>], - msrv: Option<RustcVersion>, + msrv: &Msrv, ) { if_chain! { if let Some(method_def_id) = cx.typeck_results().type_dependent_def_id(expr.hir_id); @@ -204,7 +197,7 @@ fn check_into_iter_call_arg( expr: &Expr<'_>, method_name: Symbol, receiver: &Expr<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) -> bool { if_chain! { if let Some(parent) = get_parent_expr(cx, expr); @@ -219,7 +212,7 @@ fn check_into_iter_call_arg( if unnecessary_iter_cloned::check_for_loop_iter(cx, parent, method_name, receiver, true) { return true; } - let cloned_or_copied = if is_copy(cx, item_ty) && meets_msrv(msrv, msrvs::ITERATOR_COPIED) { + let cloned_or_copied = if is_copy(cx, item_ty) && msrv.meets(msrvs::ITERATOR_COPIED) { "copied" } else { "cloned" @@ -267,11 +260,22 @@ fn check_other_call_arg<'tcx>( if let Some(as_ref_trait_id) = cx.tcx.get_diagnostic_item(sym::AsRef); if trait_predicate.def_id() == deref_trait_id || trait_predicate.def_id() == as_ref_trait_id; let receiver_ty = cx.typeck_results().expr_ty(receiver); - if can_change_type(cx, maybe_arg, receiver_ty); // We can't add an `&` when the trait is `Deref` because `Target = &T` won't match // `Target = T`. - if n_refs > 0 || is_copy(cx, receiver_ty) || trait_predicate.def_id() != deref_trait_id; - let n_refs = max(n_refs, usize::from(!is_copy(cx, receiver_ty))); + if let Some((n_refs, receiver_ty)) = if n_refs > 0 || is_copy(cx, receiver_ty) { + Some((n_refs, receiver_ty)) + } else if trait_predicate.def_id() != deref_trait_id { + Some((1, cx.tcx.mk_ref( + cx.tcx.lifetimes.re_erased, + ty::TypeAndMut { + ty: receiver_ty, + mutbl: Mutability::Not, + }, + ))) + } else { + None + }; + if can_change_type(cx, maybe_arg, receiver_ty); if let Some(receiver_snippet) = snippet_opt(cx, receiver.span); then { span_lint_and_sugg( @@ -345,13 +349,13 @@ fn get_input_traits_and_projections<'tcx>( if trait_predicate.trait_ref.self_ty() == input { trait_predicates.push(trait_predicate); } - } + }, PredicateKind::Clause(Clause::Projection(projection_predicate)) => { if projection_predicate.projection_ty.self_ty() == input { projection_predicates.push(projection_predicate); } - } - _ => {} + }, + _ => {}, } } (trait_predicates, projection_predicates) @@ -403,10 +407,12 @@ fn can_change_type<'a>(cx: &LateContext<'a>, mut expr: &'a Expr<'a>, mut ty: Ty< let mut trait_predicates = cx.tcx.param_env(callee_def_id) .caller_bounds().iter().filter(|predicate| { - if let PredicateKind::Clause(Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() - && trait_predicate.trait_ref.self_ty() == *param_ty { - true - } else { + if let PredicateKind::Clause(Clause::Trait(trait_predicate)) + = predicate.kind().skip_binder() + && trait_predicate.trait_ref.self_ty() == *param_ty + { + true + } else { false } }); @@ -466,12 +472,7 @@ fn is_cloned_or_copied(cx: &LateContext<'_>, method_name: Symbol, method_def_id: /// Returns true if the named method can be used to convert the receiver to its "owned" /// representation. -fn is_to_owned_like<'a>( - cx: &LateContext<'a>, - call_expr: &Expr<'a>, - method_name: Symbol, - method_def_id: DefId, -) -> bool { +fn is_to_owned_like<'a>(cx: &LateContext<'a>, call_expr: &Expr<'a>, method_name: Symbol, method_def_id: DefId) -> bool { is_clone_like(cx, method_name.as_str(), method_def_id) || is_cow_into_owned(cx, method_name, method_def_id) || is_to_string_on_string_like(cx, call_expr, method_name, method_def_id) diff --git a/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs b/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs index 71cc0d0a81c..5bc04bc17fb 100644 --- a/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs +++ b/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs @@ -1,9 +1,8 @@ use clippy_utils::diagnostics::span_lint; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::qualify_min_const_fn::is_min_const_fn; use clippy_utils::ty::has_drop; -use clippy_utils::{ - fn_has_unsatisfiable_preds, is_entrypoint_fn, is_from_proc_macro, meets_msrv, msrvs, trait_ref_of_method, -}; +use clippy_utils::{fn_has_unsatisfiable_preds, is_entrypoint_fn, is_from_proc_macro, trait_ref_of_method}; use rustc_hir as hir; use rustc_hir::def_id::CRATE_DEF_ID; use rustc_hir::intravisit::FnKind; @@ -11,7 +10,6 @@ use rustc_hir::{Body, Constness, FnDecl, GenericParamKind, HirId}; use rustc_hir_analysis::hir_ty_to_ty; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::Span; @@ -75,12 +73,12 @@ declare_clippy_lint! { impl_lint_pass!(MissingConstForFn => [MISSING_CONST_FOR_FN]); pub struct MissingConstForFn { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl MissingConstForFn { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -95,7 +93,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingConstForFn { span: Span, hir_id: HirId, ) { - if !meets_msrv(self.msrv, msrvs::CONST_IF_MATCH) { + if !self.msrv.meets(msrvs::CONST_IF_MATCH) { return; } @@ -152,7 +150,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingConstForFn { let mir = cx.tcx.optimized_mir(def_id); - if let Err((span, err)) = is_min_const_fn(cx.tcx, mir, self.msrv) { + if let Err((span, err)) = is_min_const_fn(cx.tcx, mir, &self.msrv) { if cx.tcx.is_const_fn_raw(def_id.to_def_id()) { cx.tcx.sess.span_err(span, err.as_ref()); } diff --git a/src/tools/clippy/clippy_lints/src/missing_enforced_import_rename.rs b/src/tools/clippy/clippy_lints/src/missing_enforced_import_rename.rs index 4712846939e..773174679db 100644 --- a/src/tools/clippy/clippy_lints/src/missing_enforced_import_rename.rs +++ b/src/tools/clippy/clippy_lints/src/missing_enforced_import_rename.rs @@ -66,35 +66,38 @@ impl LateLintPass<'_> for ImportRename { } fn check_item(&mut self, cx: &LateContext<'_>, item: &Item<'_>) { - if_chain! { - if let ItemKind::Use(path, UseKind::Single) = &item.kind; - if let Res::Def(_, id) = path.res; - if let Some(name) = self.renames.get(&id); - // Remove semicolon since it is not present for nested imports - let span_without_semi = cx.sess().source_map().span_until_char(item.span, ';'); - if let Some(snip) = snippet_opt(cx, span_without_semi); - if let Some(import) = match snip.split_once(" as ") { - None => Some(snip.as_str()), - Some((import, rename)) => { - if rename.trim() == name.as_str() { - None - } else { - Some(import.trim()) + if let ItemKind::Use(path, UseKind::Single) = &item.kind { + for &res in &path.res { + if_chain! { + if let Res::Def(_, id) = res; + if let Some(name) = self.renames.get(&id); + // Remove semicolon since it is not present for nested imports + let span_without_semi = cx.sess().source_map().span_until_char(item.span, ';'); + if let Some(snip) = snippet_opt(cx, span_without_semi); + if let Some(import) = match snip.split_once(" as ") { + None => Some(snip.as_str()), + Some((import, rename)) => { + if rename.trim() == name.as_str() { + None + } else { + Some(import.trim()) + } + }, + }; + then { + span_lint_and_sugg( + cx, + MISSING_ENFORCED_IMPORT_RENAMES, + span_without_semi, + "this import should be renamed", + "try", + format!( + "{import} as {name}", + ), + Applicability::MachineApplicable, + ); } - }, - }; - then { - span_lint_and_sugg( - cx, - MISSING_ENFORCED_IMPORT_RENAMES, - span_without_semi, - "this import should be renamed", - "try", - format!( - "{import} as {name}", - ), - Applicability::MachineApplicable, - ); + } } } } diff --git a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs index 75e12715458..2f0b7ce16e5 100644 --- a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs +++ b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs @@ -1,7 +1,9 @@ use clippy_utils::diagnostics::{multispan_sugg, span_lint_and_then}; use clippy_utils::ptr::get_spans; use clippy_utils::source::{snippet, snippet_opt}; -use clippy_utils::ty::{implements_trait, implements_trait_with_env, is_copy, is_type_diagnostic_item, is_type_lang_item}; +use clippy_utils::ty::{ + implements_trait, implements_trait_with_env, is_copy, is_type_diagnostic_item, is_type_lang_item, +}; use clippy_utils::{get_trait_def_id, is_self, paths}; use if_chain::if_chain; use rustc_ast::ast::Attribute; @@ -124,7 +126,9 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue { .filter_map(|obligation| { // Note that we do not want to deal with qualified predicates here. match obligation.predicate.kind().no_bound_vars() { - Some(ty::PredicateKind::Clause(ty::Clause::Trait(pred))) if pred.def_id() != sized_trait => Some(pred), + Some(ty::PredicateKind::Clause(ty::Clause::Trait(pred))) if pred.def_id() != sized_trait => { + Some(pred) + }, _ => None, } }) diff --git a/src/tools/clippy/clippy_lints/src/no_effect.rs b/src/tools/clippy/clippy_lints/src/no_effect.rs index 819646bb678..79c1ae4861e 100644 --- a/src/tools/clippy/clippy_lints/src/no_effect.rs +++ b/src/tools/clippy/clippy_lints/src/no_effect.rs @@ -6,7 +6,8 @@ use clippy_utils::ty::has_drop; use rustc_errors::Applicability; use rustc_hir::def::{DefKind, Res}; use rustc_hir::{is_range_literal, BinOpKind, BlockCheckMode, Expr, ExprKind, PatKind, Stmt, StmtKind, UnsafeSource}; -use rustc_lint::{LateContext, LateLintPass}; +use rustc_lint::{LateContext, LateLintPass, LintContext}; +use rustc_middle::lint::in_external_macro; use rustc_session::{declare_lint_pass, declare_tool_lint}; use std::ops::Deref; @@ -159,8 +160,11 @@ fn has_no_effect(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool { fn check_unnecessary_operation(cx: &LateContext<'_>, stmt: &Stmt<'_>) { if_chain! { if let StmtKind::Semi(expr) = stmt.kind; + let ctxt = stmt.span.ctxt(); + if expr.span.ctxt() == ctxt; if let Some(reduced) = reduce_expression(cx, expr); - if !&reduced.iter().any(|e| e.span.from_expansion()); + if !in_external_macro(cx.sess(), stmt.span); + if reduced.iter().all(|e| e.span.ctxt() == ctxt); then { if let ExprKind::Index(..) = &expr.kind { let snippet = if let (Some(arr), Some(func)) = diff --git a/src/tools/clippy/clippy_lints/src/ptr.rs b/src/tools/clippy/clippy_lints/src/ptr.rs index 92920bbad6e..e395ff54cb1 100644 --- a/src/tools/clippy/clippy_lints/src/ptr.rs +++ b/src/tools/clippy/clippy_lints/src/ptr.rs @@ -490,7 +490,7 @@ fn check_fn_args<'cx, 'tcx: 'cx>( ty_name: name.ident.name, method_renames, ref_prefix: RefPrefix { - lt: lt.clone(), + lt: *lt, mutability, }, deref_ty, @@ -693,9 +693,10 @@ fn matches_preds<'tcx>( cx.tcx, ObligationCause::dummy(), cx.param_env, - cx.tcx.mk_predicate(Binder::dummy( - PredicateKind::Clause(Clause::Projection(p.with_self_ty(cx.tcx, ty))), - )), + cx.tcx + .mk_predicate(Binder::dummy(PredicateKind::Clause(Clause::Projection( + p.with_self_ty(cx.tcx, ty), + )))), )), ExistentialPredicate::AutoTrait(p) => infcx .type_implements_trait(p, [ty], cx.param_env) diff --git a/src/tools/clippy/clippy_lints/src/ranges.rs b/src/tools/clippy/clippy_lints/src/ranges.rs index c6fbb5e805a..0a1b9d173cf 100644 --- a/src/tools/clippy/clippy_lints/src/ranges.rs +++ b/src/tools/clippy/clippy_lints/src/ranges.rs @@ -1,16 +1,16 @@ use clippy_utils::consts::{constant, Constant}; use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg, span_lint_and_then}; use clippy_utils::higher; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::{snippet, snippet_opt, snippet_with_applicability}; use clippy_utils::sugg::Sugg; -use clippy_utils::{get_parent_expr, in_constant, is_integer_const, meets_msrv, msrvs, path_to_local}; +use clippy_utils::{get_parent_expr, in_constant, is_integer_const, path_to_local}; use if_chain::if_chain; use rustc_ast::ast::RangeLimits; use rustc_errors::Applicability; use rustc_hir::{BinOpKind, Expr, ExprKind, HirId}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::source_map::{Span, Spanned}; use std::cmp::Ordering; @@ -161,12 +161,12 @@ declare_clippy_lint! { } pub struct Ranges { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl Ranges { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -181,7 +181,7 @@ impl_lint_pass!(Ranges => [ impl<'tcx> LateLintPass<'tcx> for Ranges { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { if let ExprKind::Binary(ref op, l, r) = expr.kind { - if meets_msrv(self.msrv, msrvs::RANGE_CONTAINS) { + if self.msrv.meets(msrvs::RANGE_CONTAINS) { check_possible_range_contains(cx, op.node, l, r, expr, expr.span); } } 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 8e675d34a18..2a42e73488f 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_closure_call.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_closure_call.rs @@ -81,8 +81,8 @@ impl EarlyLintPass for RedundantClosureCall { "try not to call a closure in the expression where it is declared", |diag| { if fn_decl.inputs.is_empty() { - let app = Applicability::MachineApplicable; - let mut hint = Sugg::ast(cx, body, ".."); + let mut app = Applicability::MachineApplicable; + let mut hint = Sugg::ast(cx, body, "..", closure.span.ctxt(), &mut app); if asyncness.is_async() { // `async x` is a syntax error, so it becomes `async { x }` diff --git a/src/tools/clippy/clippy_lints/src/redundant_field_names.rs b/src/tools/clippy/clippy_lints/src/redundant_field_names.rs index 40b03068f6c..61bff4a0e38 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_field_names.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_field_names.rs @@ -1,10 +1,9 @@ use clippy_utils::diagnostics::span_lint_and_sugg; -use clippy_utils::{meets_msrv, msrvs}; +use clippy_utils::msrvs::{self, Msrv}; use rustc_ast::ast::{Expr, ExprKind}; use rustc_errors::Applicability; use rustc_lint::{EarlyContext, EarlyLintPass, LintContext}; use rustc_middle::lint::in_external_macro; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; declare_clippy_lint! { @@ -37,12 +36,12 @@ declare_clippy_lint! { } pub struct RedundantFieldNames { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl RedundantFieldNames { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -51,7 +50,7 @@ impl_lint_pass!(RedundantFieldNames => [REDUNDANT_FIELD_NAMES]); impl EarlyLintPass for RedundantFieldNames { fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) { - if !meets_msrv(self.msrv, msrvs::FIELD_INIT_SHORTHAND) { + if !self.msrv.meets(msrvs::FIELD_INIT_SHORTHAND) { return; } diff --git a/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs b/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs index 833dc4913b4..d612d249c2f 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs @@ -84,7 +84,7 @@ impl<'tcx> LateLintPass<'tcx> for RedundantPubCrate { fn is_not_macro_export<'tcx>(item: &'tcx Item<'tcx>) -> bool { if let ItemKind::Use(path, _) = item.kind { - if let Res::Def(DefKind::Macro(MacroKind::Bang), _) = path.res { + if path.res.iter().all(|res| matches!(res, Res::Def(DefKind::Macro(MacroKind::Bang), _))) { return false; } } else if let ItemKind::Macro(..) = item.kind { diff --git a/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs b/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs index 60ba62c4a43..3aa2490bc44 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs @@ -1,10 +1,9 @@ use clippy_utils::diagnostics::span_lint_and_then; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet; -use clippy_utils::{meets_msrv, msrvs}; use rustc_ast::ast::{Item, ItemKind, Ty, TyKind}; use rustc_errors::Applicability; use rustc_lint::{EarlyContext, EarlyLintPass}; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; declare_clippy_lint! { @@ -34,12 +33,12 @@ declare_clippy_lint! { } pub struct RedundantStaticLifetimes { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl RedundantStaticLifetimes { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -96,7 +95,7 @@ impl RedundantStaticLifetimes { impl EarlyLintPass for RedundantStaticLifetimes { fn check_item(&mut self, cx: &EarlyContext<'_>, item: &Item) { - if !meets_msrv(self.msrv, msrvs::STATIC_IN_CONST) { + if !self.msrv.meets(msrvs::STATIC_IN_CONST) { return; } diff --git a/src/tools/clippy/clippy_lints/src/returns.rs b/src/tools/clippy/clippy_lints/src/returns.rs index 2b2a41d1601..81143d7799e 100644 --- a/src/tools/clippy/clippy_lints/src/returns.rs +++ b/src/tools/clippy/clippy_lints/src/returns.rs @@ -12,6 +12,7 @@ use rustc_middle::lint::in_external_macro; use rustc_middle::ty::subst::GenericArgKind; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::source_map::Span; +use rustc_span::{BytePos, Pos}; declare_clippy_lint! { /// ### What it does @@ -209,13 +210,14 @@ fn check_final_expr<'tcx>( if cx.tcx.hir().attrs(expr.hir_id).is_empty() { let borrows = inner.map_or(false, |inner| last_statement_borrows(cx, inner)); if !borrows { - emit_return_lint( - cx, - peeled_drop_expr.span, - semi_spans, - inner.as_ref().map(|i| i.span), - replacement, - ); + // check if expr return nothing + let ret_span = if inner.is_none() && replacement == RetReplacement::Empty { + extend_span_to_previous_non_ws(cx, peeled_drop_expr.span) + } else { + peeled_drop_expr.span + }; + + emit_return_lint(cx, ret_span, semi_spans, inner.as_ref().map(|i| i.span), replacement); } } }, @@ -289,3 +291,16 @@ fn last_statement_borrows<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) }) .is_some() } + +// Go backwards while encountering whitespace and extend the given Span to that point. +fn extend_span_to_previous_non_ws(cx: &LateContext<'_>, sp: Span) -> Span { + if let Ok(prev_source) = cx.sess().source_map().span_to_prev_source(sp) { + let ws = [' ', '\t', '\n']; + if let Some(non_ws_pos) = prev_source.rfind(|c| !ws.contains(&c)) { + let len = prev_source.len() - non_ws_pos - 1; + return sp.with_lo(sp.lo() - BytePos::from_usize(len)); + } + } + + sp +} diff --git a/src/tools/clippy/clippy_lints/src/single_component_path_imports.rs b/src/tools/clippy/clippy_lints/src/single_component_path_imports.rs index 2036e85db7e..d46f6a6352c 100644 --- a/src/tools/clippy/clippy_lints/src/single_component_path_imports.rs +++ b/src/tools/clippy/clippy_lints/src/single_component_path_imports.rs @@ -149,7 +149,7 @@ impl SingleComponentPathImports { // keep track of `use some_module;` usages if segments.len() == 1 { - if let UseTreeKind::Simple(None, _, _) = use_tree.kind { + if let UseTreeKind::Simple(None) = use_tree.kind { let name = segments[0].ident.name; if !macros.contains(&name) { single_use_usages.push(SingleUse { @@ -169,7 +169,7 @@ impl SingleComponentPathImports { for tree in trees { let segments = &tree.0.prefix.segments; if segments.len() == 1 { - if let UseTreeKind::Simple(None, _, _) = tree.0.kind { + if let UseTreeKind::Simple(None) = tree.0.kind { let name = segments[0].ident.name; if !macros.contains(&name) { single_use_usages.push(SingleUse { diff --git a/src/tools/clippy/clippy_lints/src/transmute/mod.rs b/src/tools/clippy/clippy_lints/src/transmute/mod.rs index 424a6e9264e..83e651aba8e 100644 --- a/src/tools/clippy/clippy_lints/src/transmute/mod.rs +++ b/src/tools/clippy/clippy_lints/src/transmute/mod.rs @@ -16,10 +16,10 @@ mod utils; mod wrong_transmute; use clippy_utils::in_constant; +use clippy_utils::msrvs::Msrv; use if_chain::if_chain; use rustc_hir::{Expr, ExprKind, QPath}; use rustc_lint::{LateContext, LateLintPass}; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::symbol::sym; @@ -410,7 +410,7 @@ declare_clippy_lint! { } pub struct Transmute { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl_lint_pass!(Transmute => [ CROSSPOINTER_TRANSMUTE, @@ -431,7 +431,7 @@ impl_lint_pass!(Transmute => [ ]); impl Transmute { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -461,7 +461,7 @@ impl<'tcx> LateLintPass<'tcx> for Transmute { let linted = wrong_transmute::check(cx, e, from_ty, to_ty) | crosspointer_transmute::check(cx, e, from_ty, to_ty) | transmuting_null::check(cx, e, arg, to_ty) - | transmute_ptr_to_ref::check(cx, e, from_ty, to_ty, arg, path, self.msrv) + | transmute_ptr_to_ref::check(cx, e, from_ty, to_ty, arg, path, &self.msrv) | transmute_int_to_char::check(cx, e, from_ty, to_ty, arg, const_context) | transmute_ref_to_ref::check(cx, e, from_ty, to_ty, arg, const_context) | transmute_ptr_to_ptr::check(cx, e, from_ty, to_ty, arg) diff --git a/src/tools/clippy/clippy_lints/src/transmute/transmute_ptr_to_ref.rs b/src/tools/clippy/clippy_lints/src/transmute/transmute_ptr_to_ref.rs index 12d0b866e1c..3dde4eee671 100644 --- a/src/tools/clippy/clippy_lints/src/transmute/transmute_ptr_to_ref.rs +++ b/src/tools/clippy/clippy_lints/src/transmute/transmute_ptr_to_ref.rs @@ -1,12 +1,12 @@ use super::TRANSMUTE_PTR_TO_REF; use clippy_utils::diagnostics::span_lint_and_then; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_with_applicability; -use clippy_utils::{meets_msrv, msrvs, sugg}; +use clippy_utils::sugg; use rustc_errors::Applicability; use rustc_hir::{self as hir, Expr, GenericArg, Mutability, Path, TyKind}; use rustc_lint::LateContext; use rustc_middle::ty::{self, Ty, TypeVisitable}; -use rustc_semver::RustcVersion; /// Checks for `transmute_ptr_to_ref` lint. /// Returns `true` if it's triggered, otherwise returns `false`. @@ -17,7 +17,7 @@ pub(super) fn check<'tcx>( to_ty: Ty<'tcx>, arg: &'tcx Expr<'_>, path: &'tcx Path<'_>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) -> bool { match (&from_ty.kind(), &to_ty.kind()) { (ty::RawPtr(from_ptr_ty), ty::Ref(_, to_ref_ty, mutbl)) => { @@ -37,7 +37,7 @@ pub(super) fn check<'tcx>( let sugg = if let Some(ty) = get_explicit_type(path) { let ty_snip = snippet_with_applicability(cx, ty.span, "..", &mut app); - if meets_msrv(msrv, msrvs::POINTER_CAST) { + if msrv.meets(msrvs::POINTER_CAST) { format!("{deref}{}.cast::<{ty_snip}>()", arg.maybe_par()) } else if from_ptr_ty.has_erased_regions() { sugg::make_unop(deref, arg.as_ty(format!("{cast} () as {cast} {ty_snip}"))).to_string() @@ -46,7 +46,7 @@ pub(super) fn check<'tcx>( } } else if from_ptr_ty.ty == *to_ref_ty { if from_ptr_ty.has_erased_regions() { - if meets_msrv(msrv, msrvs::POINTER_CAST) { + if msrv.meets(msrvs::POINTER_CAST) { format!("{deref}{}.cast::<{to_ref_ty}>()", arg.maybe_par()) } else { sugg::make_unop(deref, arg.as_ty(format!("{cast} () as {cast} {to_ref_ty}"))) diff --git a/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs b/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs index e8f15a44473..2e1b6d8d4ea 100644 --- a/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs +++ b/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs @@ -1,6 +1,10 @@ +use std::ops::ControlFlow; + use clippy_utils::diagnostics::span_lint_and_help; use clippy_utils::source::walk_span_to_context; +use clippy_utils::visitors::{for_each_expr_with_closures, Descend}; use clippy_utils::{get_parent_node, is_lint_allowed}; +use hir::HirId; use rustc_data_structures::sync::Lrc; use rustc_hir as hir; use rustc_hir::{Block, BlockCheckMode, ItemKind, Node, UnsafeSource}; @@ -59,11 +63,39 @@ declare_clippy_lint! { restriction, "creating an unsafe block without explaining why it is safe" } +declare_clippy_lint! { + /// ### What it does + /// Checks for `// SAFETY: ` comments on safe code. + /// + /// ### Why is this bad? + /// Safe code has no safety requirements, so there is no need to + /// describe safety invariants. + /// + /// ### Example + /// ```rust + /// use std::ptr::NonNull; + /// let a = &mut 42; + /// + /// // SAFETY: references are guaranteed to be non-null. + /// let ptr = NonNull::new(a).unwrap(); + /// ``` + /// Use instead: + /// ```rust + /// use std::ptr::NonNull; + /// let a = &mut 42; + /// + /// let ptr = NonNull::new(a).unwrap(); + /// ``` + #[clippy::version = "1.67.0"] + pub UNNECESSARY_SAFETY_COMMENT, + restriction, + "annotating safe code with a safety comment" +} -declare_lint_pass!(UndocumentedUnsafeBlocks => [UNDOCUMENTED_UNSAFE_BLOCKS]); +declare_lint_pass!(UndocumentedUnsafeBlocks => [UNDOCUMENTED_UNSAFE_BLOCKS, UNNECESSARY_SAFETY_COMMENT]); -impl LateLintPass<'_> for UndocumentedUnsafeBlocks { - fn check_block(&mut self, cx: &LateContext<'_>, block: &'_ Block<'_>) { +impl<'tcx> LateLintPass<'tcx> for UndocumentedUnsafeBlocks { + fn check_block(&mut self, cx: &LateContext<'tcx>, block: &'tcx Block<'tcx>) { if block.rules == BlockCheckMode::UnsafeBlock(UnsafeSource::UserProvided) && !in_external_macro(cx.tcx.sess, block.span) && !is_lint_allowed(cx, UNDOCUMENTED_UNSAFE_BLOCKS, block.hir_id) @@ -87,35 +119,175 @@ impl LateLintPass<'_> for UndocumentedUnsafeBlocks { "consider adding a safety comment on the preceding line", ); } + + if let Some(tail) = block.expr + && !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, tail.hir_id) + && !in_external_macro(cx.tcx.sess, tail.span) + && let HasSafetyComment::Yes(pos) = stmt_has_safety_comment(cx, tail.span, tail.hir_id) + && let Some(help_span) = expr_has_unnecessary_safety_comment(cx, tail, pos) + { + span_lint_and_help( + cx, + UNNECESSARY_SAFETY_COMMENT, + tail.span, + "expression has unnecessary safety comment", + Some(help_span), + "consider removing the safety comment", + ); + } } - fn check_item(&mut self, cx: &LateContext<'_>, item: &hir::Item<'_>) { - if let hir::ItemKind::Impl(imple) = item.kind - && imple.unsafety == hir::Unsafety::Unsafe - && !in_external_macro(cx.tcx.sess, item.span) - && !is_lint_allowed(cx, UNDOCUMENTED_UNSAFE_BLOCKS, item.hir_id()) - && !is_unsafe_from_proc_macro(cx, item.span) - && !item_has_safety_comment(cx, item) + fn check_stmt(&mut self, cx: &LateContext<'tcx>, stmt: &hir::Stmt<'tcx>) { + let ( + hir::StmtKind::Local(&hir::Local { init: Some(expr), .. }) + | hir::StmtKind::Expr(expr) + | hir::StmtKind::Semi(expr) + ) = stmt.kind else { return }; + if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, stmt.hir_id) + && !in_external_macro(cx.tcx.sess, stmt.span) + && let HasSafetyComment::Yes(pos) = stmt_has_safety_comment(cx, stmt.span, stmt.hir_id) + && let Some(help_span) = expr_has_unnecessary_safety_comment(cx, expr, pos) { + span_lint_and_help( + cx, + UNNECESSARY_SAFETY_COMMENT, + stmt.span, + "statement has unnecessary safety comment", + Some(help_span), + "consider removing the safety comment", + ); + } + } + + fn check_item(&mut self, cx: &LateContext<'_>, item: &hir::Item<'_>) { + if in_external_macro(cx.tcx.sess, item.span) { + return; + } + + let mk_spans = |pos: BytePos| { let source_map = cx.tcx.sess.source_map(); + let span = Span::new(pos, pos, SyntaxContext::root(), None); + let help_span = source_map.span_extend_to_next_char(span, '\n', true); let span = if source_map.is_multiline(item.span) { source_map.span_until_char(item.span, '\n') } else { item.span }; + (span, help_span) + }; - span_lint_and_help( - cx, - UNDOCUMENTED_UNSAFE_BLOCKS, - span, - "unsafe impl missing a safety comment", - None, - "consider adding a safety comment on the preceding line", - ); + let item_has_safety_comment = item_has_safety_comment(cx, item); + match (&item.kind, item_has_safety_comment) { + // lint unsafe impl without safety comment + (hir::ItemKind::Impl(impl_), HasSafetyComment::No) if impl_.unsafety == hir::Unsafety::Unsafe => { + if !is_lint_allowed(cx, UNDOCUMENTED_UNSAFE_BLOCKS, item.hir_id()) + && !is_unsafe_from_proc_macro(cx, item.span) + { + let source_map = cx.tcx.sess.source_map(); + let span = if source_map.is_multiline(item.span) { + source_map.span_until_char(item.span, '\n') + } else { + item.span + }; + + span_lint_and_help( + cx, + UNDOCUMENTED_UNSAFE_BLOCKS, + span, + "unsafe impl missing a safety comment", + None, + "consider adding a safety comment on the preceding line", + ); + } + }, + // lint safe impl with unnecessary safety comment + (hir::ItemKind::Impl(impl_), HasSafetyComment::Yes(pos)) if impl_.unsafety == hir::Unsafety::Normal => { + if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, item.hir_id()) { + let (span, help_span) = mk_spans(pos); + + span_lint_and_help( + cx, + UNNECESSARY_SAFETY_COMMENT, + span, + "impl has unnecessary safety comment", + Some(help_span), + "consider removing the safety comment", + ); + } + }, + (hir::ItemKind::Impl(_), _) => {}, + // const and static items only need a safety comment if their body is an unsafe block, lint otherwise + (&hir::ItemKind::Const(.., body) | &hir::ItemKind::Static(.., body), HasSafetyComment::Yes(pos)) => { + if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, body.hir_id) { + let body = cx.tcx.hir().body(body); + if !matches!( + body.value.kind, hir::ExprKind::Block(block, _) + if block.rules == BlockCheckMode::UnsafeBlock(UnsafeSource::UserProvided) + ) { + let (span, help_span) = mk_spans(pos); + + span_lint_and_help( + cx, + UNNECESSARY_SAFETY_COMMENT, + span, + &format!("{} has unnecessary safety comment", item.kind.descr()), + Some(help_span), + "consider removing the safety comment", + ); + } + } + }, + // Aside from unsafe impls and consts/statics with an unsafe block, items in general + // do not have safety invariants that need to be documented, so lint those. + (_, HasSafetyComment::Yes(pos)) => { + if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, item.hir_id()) { + let (span, help_span) = mk_spans(pos); + + span_lint_and_help( + cx, + UNNECESSARY_SAFETY_COMMENT, + span, + &format!("{} has unnecessary safety comment", item.kind.descr()), + Some(help_span), + "consider removing the safety comment", + ); + } + }, + _ => (), } } } +fn expr_has_unnecessary_safety_comment<'tcx>( + cx: &LateContext<'tcx>, + expr: &'tcx hir::Expr<'tcx>, + comment_pos: BytePos, +) -> Option<Span> { + // this should roughly be the reverse of `block_parents_have_safety_comment` + if for_each_expr_with_closures(cx, expr, |expr| match expr.kind { + hir::ExprKind::Block( + Block { + rules: BlockCheckMode::UnsafeBlock(UnsafeSource::UserProvided), + .. + }, + _, + ) => ControlFlow::Break(()), + // statements will be handled by check_stmt itself again + hir::ExprKind::Block(..) => ControlFlow::Continue(Descend::No), + _ => ControlFlow::Continue(Descend::Yes), + }) + .is_some() + { + return None; + } + + let source_map = cx.tcx.sess.source_map(); + let span = Span::new(comment_pos, comment_pos, SyntaxContext::root(), None); + let help_span = source_map.span_extend_to_next_char(span, '\n', true); + + Some(help_span) +} + fn is_unsafe_from_proc_macro(cx: &LateContext<'_>, span: Span) -> bool { let source_map = cx.sess().source_map(); let file_pos = source_map.lookup_byte_offset(span.lo()); @@ -170,85 +342,134 @@ fn block_has_safety_comment(cx: &LateContext<'_>, span: Span) -> bool { // won't work. This is to avoid dealing with where such a comment should be place relative to // attributes and doc comments. - span_from_macro_expansion_has_safety_comment(cx, span) || span_in_body_has_safety_comment(cx, span) + matches!( + span_from_macro_expansion_has_safety_comment(cx, span), + HasSafetyComment::Yes(_) + ) || span_in_body_has_safety_comment(cx, span) +} + +enum HasSafetyComment { + Yes(BytePos), + No, + Maybe, } /// Checks if the lines immediately preceding the item contain a safety comment. #[allow(clippy::collapsible_match)] -fn item_has_safety_comment(cx: &LateContext<'_>, item: &hir::Item<'_>) -> bool { - if span_from_macro_expansion_has_safety_comment(cx, item.span) { - return true; +fn item_has_safety_comment(cx: &LateContext<'_>, item: &hir::Item<'_>) -> HasSafetyComment { + match span_from_macro_expansion_has_safety_comment(cx, item.span) { + HasSafetyComment::Maybe => (), + has_safety_comment => return has_safety_comment, } - if item.span.ctxt() == SyntaxContext::root() { - if let Some(parent_node) = get_parent_node(cx.tcx, item.hir_id()) { - let comment_start = match parent_node { - Node::Crate(parent_mod) => { - comment_start_before_impl_in_mod(cx, parent_mod, parent_mod.spans.inner_span, item) - }, - Node::Item(parent_item) => { - if let ItemKind::Mod(parent_mod) = &parent_item.kind { - comment_start_before_impl_in_mod(cx, parent_mod, parent_item.span, item) - } else { - // Doesn't support impls in this position. Pretend a comment was found. - return true; - } - }, - Node::Stmt(stmt) => { - if let Some(stmt_parent) = get_parent_node(cx.tcx, stmt.hir_id) { - match stmt_parent { - Node::Block(block) => walk_span_to_context(block.span, SyntaxContext::root()).map(Span::lo), - _ => { - // Doesn't support impls in this position. Pretend a comment was found. - return true; - }, - } - } else { - // Problem getting the parent node. Pretend a comment was found. - return true; - } - }, - _ => { + if item.span.ctxt() != SyntaxContext::root() { + return HasSafetyComment::No; + } + if let Some(parent_node) = get_parent_node(cx.tcx, item.hir_id()) { + let comment_start = match parent_node { + Node::Crate(parent_mod) => { + comment_start_before_item_in_mod(cx, parent_mod, parent_mod.spans.inner_span, item) + }, + Node::Item(parent_item) => { + if let ItemKind::Mod(parent_mod) = &parent_item.kind { + comment_start_before_item_in_mod(cx, parent_mod, parent_item.span, item) + } else { // Doesn't support impls in this position. Pretend a comment was found. - return true; - }, - }; + return HasSafetyComment::Maybe; + } + }, + Node::Stmt(stmt) => { + if let Some(Node::Block(block)) = get_parent_node(cx.tcx, stmt.hir_id) { + walk_span_to_context(block.span, SyntaxContext::root()).map(Span::lo) + } else { + // Problem getting the parent node. Pretend a comment was found. + return HasSafetyComment::Maybe; + } + }, + _ => { + // Doesn't support impls in this position. Pretend a comment was found. + return HasSafetyComment::Maybe; + }, + }; - let source_map = cx.sess().source_map(); - if let Some(comment_start) = comment_start - && let Ok(unsafe_line) = source_map.lookup_line(item.span.lo()) - && let Ok(comment_start_line) = source_map.lookup_line(comment_start) - && Lrc::ptr_eq(&unsafe_line.sf, &comment_start_line.sf) - && let Some(src) = unsafe_line.sf.src.as_deref() - { - unsafe_line.sf.lines(|lines| { - comment_start_line.line < unsafe_line.line && text_has_safety_comment( + let source_map = cx.sess().source_map(); + if let Some(comment_start) = comment_start + && let Ok(unsafe_line) = source_map.lookup_line(item.span.lo()) + && let Ok(comment_start_line) = source_map.lookup_line(comment_start) + && Lrc::ptr_eq(&unsafe_line.sf, &comment_start_line.sf) + && let Some(src) = unsafe_line.sf.src.as_deref() + { + return unsafe_line.sf.lines(|lines| { + if comment_start_line.line >= unsafe_line.line { + HasSafetyComment::No + } else { + match text_has_safety_comment( src, &lines[comment_start_line.line + 1..=unsafe_line.line], unsafe_line.sf.start_pos.to_usize(), - ) - }) - } else { - // Problem getting source text. Pretend a comment was found. - true - } - } else { - // No parent node. Pretend a comment was found. - true + ) { + Some(b) => HasSafetyComment::Yes(b), + None => HasSafetyComment::No, + } + } + }); + } + } + HasSafetyComment::Maybe +} + +/// Checks if the lines immediately preceding the item contain a safety comment. +#[allow(clippy::collapsible_match)] +fn stmt_has_safety_comment(cx: &LateContext<'_>, span: Span, hir_id: HirId) -> HasSafetyComment { + match span_from_macro_expansion_has_safety_comment(cx, span) { + HasSafetyComment::Maybe => (), + has_safety_comment => return has_safety_comment, + } + + if span.ctxt() != SyntaxContext::root() { + return HasSafetyComment::No; + } + + if let Some(parent_node) = get_parent_node(cx.tcx, hir_id) { + let comment_start = match parent_node { + Node::Block(block) => walk_span_to_context(block.span, SyntaxContext::root()).map(Span::lo), + _ => return HasSafetyComment::Maybe, + }; + + let source_map = cx.sess().source_map(); + if let Some(comment_start) = comment_start + && let Ok(unsafe_line) = source_map.lookup_line(span.lo()) + && let Ok(comment_start_line) = source_map.lookup_line(comment_start) + && Lrc::ptr_eq(&unsafe_line.sf, &comment_start_line.sf) + && let Some(src) = unsafe_line.sf.src.as_deref() + { + return unsafe_line.sf.lines(|lines| { + if comment_start_line.line >= unsafe_line.line { + HasSafetyComment::No + } else { + match text_has_safety_comment( + src, + &lines[comment_start_line.line + 1..=unsafe_line.line], + unsafe_line.sf.start_pos.to_usize(), + ) { + Some(b) => HasSafetyComment::Yes(b), + None => HasSafetyComment::No, + } + } + }); } - } else { - false } + HasSafetyComment::Maybe } -fn comment_start_before_impl_in_mod( +fn comment_start_before_item_in_mod( cx: &LateContext<'_>, parent_mod: &hir::Mod<'_>, parent_mod_span: Span, - imple: &hir::Item<'_>, + item: &hir::Item<'_>, ) -> Option<BytePos> { parent_mod.item_ids.iter().enumerate().find_map(|(idx, item_id)| { - if *item_id == imple.item_id() { + if *item_id == item.item_id() { if idx == 0 { // mod A { /* comment */ unsafe impl T {} ... } // ^------------------------------------------^ returns the start of this span @@ -270,11 +491,11 @@ fn comment_start_before_impl_in_mod( }) } -fn span_from_macro_expansion_has_safety_comment(cx: &LateContext<'_>, span: Span) -> bool { +fn span_from_macro_expansion_has_safety_comment(cx: &LateContext<'_>, span: Span) -> HasSafetyComment { let source_map = cx.sess().source_map(); let ctxt = span.ctxt(); if ctxt == SyntaxContext::root() { - false + HasSafetyComment::Maybe } else { // From a macro expansion. Get the text from the start of the macro declaration to start of the // unsafe block. @@ -286,15 +507,22 @@ fn span_from_macro_expansion_has_safety_comment(cx: &LateContext<'_>, span: Span && let Some(src) = unsafe_line.sf.src.as_deref() { unsafe_line.sf.lines(|lines| { - macro_line.line < unsafe_line.line && text_has_safety_comment( - src, - &lines[macro_line.line + 1..=unsafe_line.line], - unsafe_line.sf.start_pos.to_usize(), - ) + if macro_line.line < unsafe_line.line { + match text_has_safety_comment( + src, + &lines[macro_line.line + 1..=unsafe_line.line], + unsafe_line.sf.start_pos.to_usize(), + ) { + Some(b) => HasSafetyComment::Yes(b), + None => HasSafetyComment::No, + } + } else { + HasSafetyComment::No + } }) } else { // Problem getting source text. Pretend a comment was found. - true + HasSafetyComment::Maybe } } } @@ -333,7 +561,7 @@ fn span_in_body_has_safety_comment(cx: &LateContext<'_>, span: Span) -> bool { src, &lines[body_line.line + 1..=unsafe_line.line], unsafe_line.sf.start_pos.to_usize(), - ) + ).is_some() }) } else { // Problem getting source text. Pretend a comment was found. @@ -345,30 +573,34 @@ fn span_in_body_has_safety_comment(cx: &LateContext<'_>, span: Span) -> bool { } /// Checks if the given text has a safety comment for the immediately proceeding line. -fn text_has_safety_comment(src: &str, line_starts: &[BytePos], offset: usize) -> bool { +fn text_has_safety_comment(src: &str, line_starts: &[BytePos], offset: usize) -> Option<BytePos> { let mut lines = line_starts .array_windows::<2>() .rev() .map_while(|[start, end]| { let start = start.to_usize() - offset; let end = end.to_usize() - offset; - src.get(start..end).map(|text| (start, text.trim_start())) + let text = src.get(start..end)?; + let trimmed = text.trim_start(); + Some((start + (text.len() - trimmed.len()), trimmed)) }) .filter(|(_, text)| !text.is_empty()); let Some((line_start, line)) = lines.next() else { - return false; + return None; }; // Check for a sequence of line comments. if line.starts_with("//") { - let mut line = line; + let (mut line, mut line_start) = (line, line_start); loop { if line.to_ascii_uppercase().contains("SAFETY:") { - return true; + return Some(BytePos( + u32::try_from(line_start).unwrap() + u32::try_from(offset).unwrap(), + )); } match lines.next() { - Some((_, x)) if x.starts_with("//") => line = x, - _ => return false, + Some((s, x)) if x.starts_with("//") => (line, line_start) = (x, s), + _ => return None, } } } @@ -377,16 +609,19 @@ fn text_has_safety_comment(src: &str, line_starts: &[BytePos], offset: usize) -> let (mut line_start, mut line) = (line_start, line); loop { if line.starts_with("/*") { - let src = src[line_start..line_starts.last().unwrap().to_usize() - offset].trim_start(); + let src = &src[line_start..line_starts.last().unwrap().to_usize() - offset]; let mut tokens = tokenize(src); - return src[..tokens.next().unwrap().len as usize] + return (src[..tokens.next().unwrap().len as usize] .to_ascii_uppercase() .contains("SAFETY:") - && tokens.all(|t| t.kind == TokenKind::Whitespace); + && tokens.all(|t| t.kind == TokenKind::Whitespace)) + .then_some(BytePos( + u32::try_from(line_start).unwrap() + u32::try_from(offset).unwrap(), + )); } match lines.next() { Some(x) => (line_start, line) = x, - None => return false, + None => return None, } } } diff --git a/src/tools/clippy/clippy_lints/src/unnecessary_self_imports.rs b/src/tools/clippy/clippy_lints/src/unnecessary_self_imports.rs index bc0dd263d88..397633f533b 100644 --- a/src/tools/clippy/clippy_lints/src/unnecessary_self_imports.rs +++ b/src/tools/clippy/clippy_lints/src/unnecessary_self_imports.rs @@ -57,7 +57,7 @@ impl EarlyLintPass for UnnecessarySelfImports { format!( "{}{};", last_segment.ident, - if let UseTreeKind::Simple(Some(alias), ..) = self_tree.kind { format!(" as {alias}") } else { String::new() }, + if let UseTreeKind::Simple(Some(alias)) = self_tree.kind { format!(" as {alias}") } else { String::new() }, ), Applicability::MaybeIncorrect, ); 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 bb6fb38e969..7355260ae4a 100644 --- a/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs +++ b/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs @@ -2,14 +2,14 @@ use clippy_utils::ast_utils::{eq_field_pat, eq_id, eq_maybe_qself, eq_pat, eq_path}; use clippy_utils::diagnostics::span_lint_and_then; -use clippy_utils::{meets_msrv, msrvs, over}; +use clippy_utils::msrvs::{self, Msrv}; +use clippy_utils::over; use rustc_ast::mut_visit::*; use rustc_ast::ptr::P; use rustc_ast::{self as ast, Mutability, Pat, PatKind, PatKind::*, DUMMY_NODE_ID}; use rustc_ast_pretty::pprust; use rustc_errors::Applicability; use rustc_lint::{EarlyContext, EarlyLintPass}; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::DUMMY_SP; @@ -45,14 +45,13 @@ declare_clippy_lint! { "unnested or-patterns, e.g., `Foo(Bar) | Foo(Baz) instead of `Foo(Bar | Baz)`" } -#[derive(Clone, Copy)] pub struct UnnestedOrPatterns { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl UnnestedOrPatterns { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv } } } @@ -61,13 +60,13 @@ impl_lint_pass!(UnnestedOrPatterns => [UNNESTED_OR_PATTERNS]); impl EarlyLintPass for UnnestedOrPatterns { fn check_arm(&mut self, cx: &EarlyContext<'_>, a: &ast::Arm) { - if meets_msrv(self.msrv, msrvs::OR_PATTERNS) { + if self.msrv.meets(msrvs::OR_PATTERNS) { lint_unnested_or_patterns(cx, &a.pat); } } fn check_expr(&mut self, cx: &EarlyContext<'_>, e: &ast::Expr) { - if meets_msrv(self.msrv, msrvs::OR_PATTERNS) { + if self.msrv.meets(msrvs::OR_PATTERNS) { if let ast::ExprKind::Let(pat, _, _) = &e.kind { lint_unnested_or_patterns(cx, pat); } @@ -75,13 +74,13 @@ impl EarlyLintPass for UnnestedOrPatterns { } fn check_param(&mut self, cx: &EarlyContext<'_>, p: &ast::Param) { - if meets_msrv(self.msrv, msrvs::OR_PATTERNS) { + if self.msrv.meets(msrvs::OR_PATTERNS) { lint_unnested_or_patterns(cx, &p.pat); } } fn check_local(&mut self, cx: &EarlyContext<'_>, l: &ast::Local) { - if meets_msrv(self.msrv, msrvs::OR_PATTERNS) { + if self.msrv.meets(msrvs::OR_PATTERNS) { lint_unnested_or_patterns(cx, &l.pat); } } diff --git a/src/tools/clippy/clippy_lints/src/unsafe_removed_from_name.rs b/src/tools/clippy/clippy_lints/src/unsafe_removed_from_name.rs index 95258652768..7ee785804f0 100644 --- a/src/tools/clippy/clippy_lints/src/unsafe_removed_from_name.rs +++ b/src/tools/clippy/clippy_lints/src/unsafe_removed_from_name.rs @@ -39,7 +39,7 @@ impl EarlyLintPass for UnsafeNameRemoval { fn check_use_tree(use_tree: &UseTree, cx: &EarlyContext<'_>, span: Span) { match use_tree.kind { - UseTreeKind::Simple(Some(new_name), ..) => { + UseTreeKind::Simple(Some(new_name)) => { let old_name = use_tree .prefix .segments @@ -48,7 +48,7 @@ fn check_use_tree(use_tree: &UseTree, cx: &EarlyContext<'_>, span: Span) { .ident; unsafe_to_safe_check(old_name, new_name, cx, span); }, - UseTreeKind::Simple(None, ..) | UseTreeKind::Glob => {}, + UseTreeKind::Simple(None) | UseTreeKind::Glob => {}, UseTreeKind::Nested(ref nested_use_tree) => { for (use_tree, _) in nested_use_tree { check_use_tree(use_tree, cx, span); diff --git a/src/tools/clippy/clippy_lints/src/unused_rounding.rs b/src/tools/clippy/clippy_lints/src/unused_rounding.rs index aac6719a8dc..097568cd1f7 100644 --- a/src/tools/clippy/clippy_lints/src/unused_rounding.rs +++ b/src/tools/clippy/clippy_lints/src/unused_rounding.rs @@ -1,4 +1,5 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::source::snippet; use rustc_ast::ast::{Expr, ExprKind, MethodCall}; use rustc_errors::Applicability; use rustc_lint::{EarlyContext, EarlyLintPass}; @@ -29,22 +30,16 @@ declare_clippy_lint! { } declare_lint_pass!(UnusedRounding => [UNUSED_ROUNDING]); -fn is_useless_rounding(expr: &Expr) -> Option<(&str, String)> { +fn is_useless_rounding<'a>(cx: &EarlyContext<'_>, expr: &'a Expr) -> Option<(&'a str, String)> { if let ExprKind::MethodCall(box MethodCall { seg:name_ident, receiver, .. }) = &expr.kind && let method_name = name_ident.ident.name.as_str() && (method_name == "ceil" || method_name == "round" || method_name == "floor") && let ExprKind::Lit(token_lit) = &receiver.kind - && token_lit.is_semantic_float() { - let mut f_str = token_lit.symbol.to_string(); - let f = f_str.trim_end_matches('_').parse::<f64>().unwrap(); - if let Some(suffix) = token_lit.suffix { - f_str.push_str(suffix.as_str()); - } - if f.fract() == 0.0 { - Some((method_name, f_str)) - } else { - None - } + && token_lit.is_semantic_float() + && let Ok(f) = token_lit.symbol.as_str().replace('_', "").parse::<f64>() { + (f.fract() == 0.0).then(|| + (method_name, snippet(cx, receiver.span, "..").to_string()) + ) } else { None } @@ -52,7 +47,7 @@ fn is_useless_rounding(expr: &Expr) -> Option<(&str, String)> { impl EarlyLintPass for UnusedRounding { fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) { - if let Some((method_name, float)) = is_useless_rounding(expr) { + if let Some((method_name, float)) = is_useless_rounding(cx, expr) { span_lint_and_sugg( cx, UNUSED_ROUNDING, diff --git a/src/tools/clippy/clippy_lints/src/use_self.rs b/src/tools/clippy/clippy_lints/src/use_self.rs index e2860db71a5..4c755d812a0 100644 --- a/src/tools/clippy/clippy_lints/src/use_self.rs +++ b/src/tools/clippy/clippy_lints/src/use_self.rs @@ -1,6 +1,7 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::is_from_proc_macro; +use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::ty::same_type_and_consts; -use clippy_utils::{is_from_proc_macro, meets_msrv, msrvs}; use if_chain::if_chain; use rustc_data_structures::fx::FxHashSet; use rustc_errors::Applicability; @@ -14,7 +15,6 @@ use rustc_hir::{ }; use rustc_hir_analysis::hir_ty_to_ty; use rustc_lint::{LateContext, LateLintPass}; -use rustc_semver::RustcVersion; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::Span; @@ -57,13 +57,13 @@ declare_clippy_lint! { #[derive(Default)] pub struct UseSelf { - msrv: Option<RustcVersion>, + msrv: Msrv, stack: Vec<StackItem>, } impl UseSelf { #[must_use] - pub fn new(msrv: Option<RustcVersion>) -> Self { + pub fn new(msrv: Msrv) -> Self { Self { msrv, ..Self::default() @@ -199,7 +199,7 @@ impl<'tcx> LateLintPass<'tcx> for UseSelf { fn check_ty(&mut self, cx: &LateContext<'_>, hir_ty: &hir::Ty<'_>) { if_chain! { if !hir_ty.span.from_expansion(); - if meets_msrv(self.msrv, msrvs::TYPE_ALIAS_ENUM_VARIANTS); + if self.msrv.meets(msrvs::TYPE_ALIAS_ENUM_VARIANTS); if let Some(&StackItem::Check { impl_id, in_body, @@ -228,7 +228,7 @@ impl<'tcx> LateLintPass<'tcx> for UseSelf { fn check_expr(&mut self, cx: &LateContext<'_>, expr: &Expr<'_>) { if_chain! { if !expr.span.from_expansion(); - if meets_msrv(self.msrv, msrvs::TYPE_ALIAS_ENUM_VARIANTS); + if self.msrv.meets(msrvs::TYPE_ALIAS_ENUM_VARIANTS); if let Some(&StackItem::Check { impl_id, .. }) = self.stack.last(); if cx.typeck_results().expr_ty(expr) == cx.tcx.type_of(impl_id); then {} else { return; } @@ -248,7 +248,7 @@ impl<'tcx> LateLintPass<'tcx> for UseSelf { fn check_pat(&mut self, cx: &LateContext<'_>, pat: &Pat<'_>) { if_chain! { if !pat.span.from_expansion(); - if meets_msrv(self.msrv, msrvs::TYPE_ALIAS_ENUM_VARIANTS); + if self.msrv.meets(msrvs::TYPE_ALIAS_ENUM_VARIANTS); if let Some(&StackItem::Check { impl_id, .. }) = self.stack.last(); // get the path from the pattern if let PatKind::Path(QPath::Resolved(_, path)) diff --git a/src/tools/clippy/clippy_lints/src/utils/conf.rs b/src/tools/clippy/clippy_lints/src/utils/conf.rs index b37d4239477..b6dc8cd7ab1 100644 --- a/src/tools/clippy/clippy_lints/src/utils/conf.rs +++ b/src/tools/clippy/clippy_lints/src/utils/conf.rs @@ -402,6 +402,10 @@ define_Conf! { /// A list of paths to types that should be treated like `Arc`, i.e. ignored but /// for the generic parameters for determining interior mutability (ignore_interior_mutability: Vec<String> = Vec::from(["bytes::Bytes".into()])), + /// Lint: UNINLINED_FORMAT_ARGS. + /// + /// Whether to allow mixed uninlined format args, e.g. `format!("{} {}", a, foo.bar)` + (allow_mixed_uninlined_format_args: bool = true), } /// Search for the configuration file. diff --git a/src/tools/clippy/clippy_lints/src/utils/internal_lints/lint_without_lint_pass.rs b/src/tools/clippy/clippy_lints/src/utils/internal_lints/lint_without_lint_pass.rs index 1aebb8b3104..786d9608c85 100644 --- a/src/tools/clippy/clippy_lints/src/utils/internal_lints/lint_without_lint_pass.rs +++ b/src/tools/clippy/clippy_lints/src/utils/internal_lints/lint_without_lint_pass.rs @@ -330,7 +330,7 @@ struct LintCollector<'a, 'tcx> { impl<'a, 'tcx> Visitor<'tcx> for LintCollector<'a, 'tcx> { type NestedFilter = nested_filter::All; - fn visit_path(&mut self, path: &'tcx Path<'_>, _: HirId) { + fn visit_path(&mut self, path: &Path<'_>, _: HirId) { if path.segments.len() == 1 { self.output.insert(path.segments[0].ident.name); } diff --git a/src/tools/clippy/clippy_lints/src/utils/internal_lints/metadata_collector.rs b/src/tools/clippy/clippy_lints/src/utils/internal_lints/metadata_collector.rs index d06a616e4b3..857abe77e21 100644 --- a/src/tools/clippy/clippy_lints/src/utils/internal_lints/metadata_collector.rs +++ b/src/tools/clippy/clippy_lints/src/utils/internal_lints/metadata_collector.rs @@ -1019,7 +1019,7 @@ impl<'a, 'hir> intravisit::Visitor<'hir> for ApplicabilityResolver<'a, 'hir> { self.cx.tcx.hir() } - fn visit_path(&mut self, path: &'hir hir::Path<'hir>, _id: hir::HirId) { + fn visit_path(&mut self, path: &hir::Path<'hir>, _id: hir::HirId) { for (index, enum_value) in paths::APPLICABILITY_VALUES.iter().enumerate() { if match_path(path, enum_value) { self.add_new_index(index); diff --git a/src/tools/clippy/clippy_lints/src/utils/internal_lints/msrv_attr_impl.rs b/src/tools/clippy/clippy_lints/src/utils/internal_lints/msrv_attr_impl.rs index 1e994e3f2b1..9876a8a765c 100644 --- a/src/tools/clippy/clippy_lints/src/utils/internal_lints/msrv_attr_impl.rs +++ b/src/tools/clippy/clippy_lints/src/utils/internal_lints/msrv_attr_impl.rs @@ -41,7 +41,7 @@ impl LateLintPass<'_> for MsrvAttrImpl { .type_of(f.did) .walk() .filter(|t| matches!(t.unpack(), GenericArgKind::Type(_))) - .any(|t| match_type(cx, t.expect_ty(), &paths::RUSTC_VERSION)) + .any(|t| match_type(cx, t.expect_ty(), &paths::MSRV)) }); if !items.iter().any(|item| item.ident.name == sym!(enter_lint_attrs)); then { diff --git a/src/tools/clippy/clippy_lints/src/wildcard_imports.rs b/src/tools/clippy/clippy_lints/src/wildcard_imports.rs index be98344470b..e4d1ee195c4 100644 --- a/src/tools/clippy/clippy_lints/src/wildcard_imports.rs +++ b/src/tools/clippy/clippy_lints/src/wildcard_imports.rs @@ -176,7 +176,8 @@ impl LateLintPass<'_> for WildcardImports { format!("{import_source_snippet}::{imports_string}") }; - let (lint, message) = if let Res::Def(DefKind::Enum, _) = use_path.res { + // Glob imports always have a single resolution. + let (lint, message) = if let Res::Def(DefKind::Enum, _) = use_path.res[0] { (ENUM_GLOB_USE, "usage of wildcard import for enum variants") } else { (WILDCARD_IMPORTS, "usage of wildcard import") diff --git a/src/tools/clippy/clippy_utils/src/ast_utils.rs b/src/tools/clippy/clippy_utils/src/ast_utils.rs index 6bcf0bbd7eb..49e5f283db0 100644 --- a/src/tools/clippy/clippy_utils/src/ast_utils.rs +++ b/src/tools/clippy/clippy_utils/src/ast_utils.rs @@ -566,7 +566,7 @@ pub fn eq_use_tree_kind(l: &UseTreeKind, r: &UseTreeKind) -> bool { use UseTreeKind::*; match (l, r) { (Glob, Glob) => true, - (Simple(l, _, _), Simple(r, _, _)) => both(l, r, |l, r| eq_id(*l, *r)), + (Simple(l), Simple(r)) => both(l, r, |l, r| eq_id(*l, *r)), (Nested(l), Nested(r)) => over(l, r, |(l, _), (r, _)| eq_use_tree(l, r)), _ => false, } diff --git a/src/tools/clippy/clippy_utils/src/attrs.rs b/src/tools/clippy/clippy_utils/src/attrs.rs index cd8575c90e8..7987a233bdc 100644 --- a/src/tools/clippy/clippy_utils/src/attrs.rs +++ b/src/tools/clippy/clippy_utils/src/attrs.rs @@ -125,19 +125,19 @@ fn parse_attrs<F: FnMut(u64)>(sess: &Session, attrs: &[ast::Attribute], name: &' } } -pub fn get_unique_inner_attr(sess: &Session, attrs: &[ast::Attribute], name: &'static str) -> Option<ast::Attribute> { - let mut unique_attr = None; +pub fn get_unique_attr<'a>( + sess: &'a Session, + attrs: &'a [ast::Attribute], + name: &'static str, +) -> Option<&'a ast::Attribute> { + let mut unique_attr: Option<&ast::Attribute> = None; for attr in get_attr(sess, attrs, name) { - match attr.style { - ast::AttrStyle::Inner if unique_attr.is_none() => unique_attr = Some(attr.clone()), - ast::AttrStyle::Inner => { - sess.struct_span_err(attr.span, &format!("`{name}` is defined multiple times")) - .span_note(unique_attr.as_ref().unwrap().span, "first definition found here") - .emit(); - }, - ast::AttrStyle::Outer => { - sess.span_err(attr.span, format!("`{name}` cannot be an outer attribute")); - }, + if let Some(duplicate) = unique_attr { + sess.struct_span_err(attr.span, &format!("`{name}` is defined multiple times")) + .span_note(duplicate.span, "first definition found here") + .emit(); + } else { + unique_attr = Some(attr); } } unique_attr diff --git a/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs b/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs index f74f7dadfa9..96711936968 100644 --- a/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs +++ b/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs @@ -91,6 +91,16 @@ fn fn_eagerness(cx: &LateContext<'_>, fn_id: DefId, name: Symbol, have_one_arg: } } +fn res_has_significant_drop(res: Res, cx: &LateContext<'_>, e: &Expr<'_>) -> bool { + if let Res::Def(DefKind::Ctor(..) | DefKind::Variant, _) | Res::SelfCtor(_) = res { + cx.typeck_results() + .expr_ty(e) + .has_significant_drop(cx.tcx, cx.param_env) + } else { + false + } +} + #[expect(clippy::too_many_lines)] fn expr_eagerness<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) -> EagernessSuggestion { struct V<'cx, 'tcx> { @@ -113,13 +123,8 @@ fn expr_eagerness<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) -> EagernessS }, args, ) => match self.cx.qpath_res(path, hir_id) { - Res::Def(DefKind::Ctor(..) | DefKind::Variant, _) | Res::SelfCtor(_) => { - if self - .cx - .typeck_results() - .expr_ty(e) - .has_significant_drop(self.cx.tcx, self.cx.param_env) - { + res @ (Res::Def(DefKind::Ctor(..) | DefKind::Variant, _) | Res::SelfCtor(_)) => { + if res_has_significant_drop(res, self.cx, e) { self.eagerness = ForceNoChange; return; } @@ -147,6 +152,12 @@ fn expr_eagerness<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) -> EagernessS self.eagerness |= NoChange; return; }, + ExprKind::Path(ref path) => { + if res_has_significant_drop(self.cx.qpath_res(path, e.hir_id), self.cx, e) { + self.eagerness = ForceNoChange; + return; + } + }, ExprKind::MethodCall(name, ..) => { self.eagerness |= self .cx @@ -206,7 +217,6 @@ fn expr_eagerness<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) -> EagernessS | ExprKind::Match(..) | ExprKind::Closure { .. } | ExprKind::Field(..) - | ExprKind::Path(_) | ExprKind::AddrOf(..) | ExprKind::Struct(..) | ExprKind::Repeat(..) diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs index 9e2682925a2..90192f46cbf 100644 --- a/src/tools/clippy/clippy_utils/src/lib.rs +++ b/src/tools/clippy/clippy_utils/src/lib.rs @@ -105,8 +105,6 @@ use rustc_middle::ty::{ layout::IntegerExt, BorrowKind, ClosureKind, DefIdTree, Ty, TyCtxt, TypeAndMut, TypeVisitable, UpvarCapture, }; use rustc_middle::ty::{FloatTy, IntTy, UintTy}; -use rustc_semver::RustcVersion; -use rustc_session::Session; use rustc_span::hygiene::{ExpnKind, MacroKind}; use rustc_span::source_map::SourceMap; use rustc_span::sym; @@ -118,36 +116,17 @@ use crate::consts::{constant, Constant}; use crate::ty::{can_partially_move_ty, expr_sig, is_copy, is_recursively_primitive_type, ty_is_fn_once_param}; use crate::visitors::for_each_expr; -pub fn parse_msrv(msrv: &str, sess: Option<&Session>, span: Option<Span>) -> Option<RustcVersion> { - if let Ok(version) = RustcVersion::parse(msrv) { - return Some(version); - } else if let Some(sess) = sess { - if let Some(span) = span { - sess.span_err(span, format!("`{msrv}` is not a valid Rust version")); - } - } - None -} - -pub fn meets_msrv(msrv: Option<RustcVersion>, lint_msrv: RustcVersion) -> bool { - msrv.map_or(true, |msrv| msrv.meets(lint_msrv)) -} - #[macro_export] macro_rules! extract_msrv_attr { ($context:ident) => { fn enter_lint_attrs(&mut self, cx: &rustc_lint::$context<'_>, attrs: &[rustc_ast::ast::Attribute]) { let sess = rustc_lint::LintContext::sess(cx); - match $crate::get_unique_inner_attr(sess, attrs, "msrv") { - Some(msrv_attr) => { - if let Some(msrv) = msrv_attr.value_str() { - self.msrv = $crate::parse_msrv(&msrv.to_string(), Some(sess), Some(msrv_attr.span)); - } else { - sess.span_err(msrv_attr.span, "bad clippy attribute"); - } - }, - _ => (), - } + self.msrv.enter_lint_attrs(sess, attrs); + } + + fn exit_lint_attrs(&mut self, cx: &rustc_lint::$context<'_>, attrs: &[rustc_ast::ast::Attribute]) { + let sess = rustc_lint::LintContext::sess(cx); + self.msrv.exit_lint_attrs(sess, attrs); } }; } diff --git a/src/tools/clippy/clippy_utils/src/msrvs.rs b/src/tools/clippy/clippy_utils/src/msrvs.rs index 79b19e6fb3e..12a512f78a6 100644 --- a/src/tools/clippy/clippy_utils/src/msrvs.rs +++ b/src/tools/clippy/clippy_utils/src/msrvs.rs @@ -1,4 +1,11 @@ +use std::sync::OnceLock; + +use rustc_ast::Attribute; use rustc_semver::RustcVersion; +use rustc_session::Session; +use rustc_span::Span; + +use crate::attrs::get_unique_attr; macro_rules! msrv_aliases { ($($major:literal,$minor:literal,$patch:literal { @@ -40,3 +47,97 @@ msrv_aliases! { 1,16,0 { STR_REPEAT } 1,55,0 { SEEK_REWIND } } + +fn parse_msrv(msrv: &str, sess: Option<&Session>, span: Option<Span>) -> Option<RustcVersion> { + if let Ok(version) = RustcVersion::parse(msrv) { + return Some(version); + } else if let Some(sess) = sess { + if let Some(span) = span { + sess.span_err(span, format!("`{msrv}` is not a valid Rust version")); + } + } + None +} + +/// Tracks the current MSRV from `clippy.toml`, `Cargo.toml` or set via `#[clippy::msrv]` +#[derive(Debug, Clone, Default)] +pub struct Msrv { + stack: Vec<RustcVersion>, +} + +impl Msrv { + fn new(initial: Option<RustcVersion>) -> Self { + Self { + stack: Vec::from_iter(initial), + } + } + + fn read_inner(conf_msrv: &Option<String>, sess: &Session) -> Self { + let cargo_msrv = std::env::var("CARGO_PKG_RUST_VERSION") + .ok() + .and_then(|v| parse_msrv(&v, None, None)); + let clippy_msrv = conf_msrv.as_ref().and_then(|s| { + parse_msrv(s, None, None).or_else(|| { + sess.err(format!( + "error reading Clippy's configuration file. `{s}` is not a valid Rust version" + )); + None + }) + }); + + // if both files have an msrv, let's compare them and emit a warning if they differ + if let Some(cargo_msrv) = cargo_msrv + && let Some(clippy_msrv) = clippy_msrv + && clippy_msrv != cargo_msrv + { + sess.warn(format!( + "the MSRV in `clippy.toml` and `Cargo.toml` differ; using `{clippy_msrv}` from `clippy.toml`" + )); + } + + Self::new(clippy_msrv.or(cargo_msrv)) + } + + /// Set the initial MSRV from the Clippy config file or from Cargo due to the `rust-version` + /// field in `Cargo.toml` + /// + /// Returns a `&'static Msrv` as `Copy` types are more easily passed to the + /// `register_{late,early}_pass` callbacks + pub fn read(conf_msrv: &Option<String>, sess: &Session) -> &'static Self { + static PARSED: OnceLock<Msrv> = OnceLock::new(); + + PARSED.get_or_init(|| Self::read_inner(conf_msrv, sess)) + } + + pub fn current(&self) -> Option<RustcVersion> { + self.stack.last().copied() + } + + pub fn meets(&self, required: RustcVersion) -> bool { + self.current().map_or(true, |version| version.meets(required)) + } + + fn parse_attr(sess: &Session, attrs: &[Attribute]) -> Option<RustcVersion> { + if let Some(msrv_attr) = get_unique_attr(sess, attrs, "msrv") { + if let Some(msrv) = msrv_attr.value_str() { + return parse_msrv(&msrv.to_string(), Some(sess), Some(msrv_attr.span)); + } + + sess.span_err(msrv_attr.span, "bad clippy attribute"); + } + + None + } + + pub fn enter_lint_attrs(&mut self, sess: &Session, attrs: &[Attribute]) { + if let Some(version) = Self::parse_attr(sess, attrs) { + self.stack.push(version); + } + } + + pub fn exit_lint_attrs(&mut self, sess: &Session, attrs: &[Attribute]) { + if Self::parse_attr(sess, attrs).is_some() { + self.stack.pop(); + } + } +} diff --git a/src/tools/clippy/clippy_utils/src/paths.rs b/src/tools/clippy/clippy_utils/src/paths.rs index 6c09c146082..6417f0f3c71 100644 --- a/src/tools/clippy/clippy_utils/src/paths.rs +++ b/src/tools/clippy/clippy_utils/src/paths.rs @@ -60,6 +60,8 @@ pub const LATE_LINT_PASS: [&str; 3] = ["rustc_lint", "passes", "LateLintPass"]; #[cfg(feature = "internal")] pub const LINT: [&str; 2] = ["rustc_lint_defs", "Lint"]; pub const MEM_SWAP: [&str; 3] = ["core", "mem", "swap"]; +#[cfg(feature = "internal")] +pub const MSRV: [&str; 3] = ["clippy_utils", "msrvs", "Msrv"]; pub const OPEN_OPTIONS: [&str; 3] = ["std", "fs", "OpenOptions"]; pub const OS_STRING_AS_OS_STR: [&str; 5] = ["std", "ffi", "os_str", "OsString", "as_os_str"]; pub const OS_STR_TO_OS_STRING: [&str; 5] = ["std", "ffi", "os_str", "OsStr", "to_os_string"]; @@ -72,7 +74,6 @@ pub const PEEKABLE: [&str; 5] = ["core", "iter", "adapters", "peekable", "Peekab pub const PERMISSIONS: [&str; 3] = ["std", "fs", "Permissions"]; #[cfg_attr(not(unix), allow(clippy::invalid_paths))] pub const PERMISSIONS_FROM_MODE: [&str; 6] = ["std", "os", "unix", "fs", "PermissionsExt", "from_mode"]; -pub const POLL: [&str; 4] = ["core", "task", "poll", "Poll"]; pub const PTR_COPY: [&str; 3] = ["core", "intrinsics", "copy"]; pub const PTR_COPY_NONOVERLAPPING: [&str; 3] = ["core", "intrinsics", "copy_nonoverlapping"]; pub const PTR_EQ: [&str; 3] = ["core", "ptr", "eq"]; @@ -101,8 +102,6 @@ pub const REGEX_BYTES_NEW: [&str; 4] = ["regex", "re_bytes", "Regex", "new"]; pub const REGEX_BYTES_SET_NEW: [&str; 5] = ["regex", "re_set", "bytes", "RegexSet", "new"]; pub const REGEX_NEW: [&str; 4] = ["regex", "re_unicode", "Regex", "new"]; pub const REGEX_SET_NEW: [&str; 5] = ["regex", "re_set", "unicode", "RegexSet", "new"]; -#[cfg(feature = "internal")] -pub const RUSTC_VERSION: [&str; 2] = ["rustc_semver", "RustcVersion"]; pub const SERDE_DESERIALIZE: [&str; 3] = ["serde", "de", "Deserialize"]; pub const SERDE_DE_VISITOR: [&str; 3] = ["serde", "de", "Visitor"]; pub const SLICE_FROM_RAW_PARTS: [&str; 4] = ["core", "slice", "raw", "from_raw_parts"]; diff --git a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs index b8c2dd5ab9e..480e8e55cf3 100644 --- a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs +++ b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs @@ -3,6 +3,7 @@ // of terminologies might not be relevant in the context of Clippy. Note that its behavior might // differ from the time of `rustc` even if the name stays the same. +use crate::msrvs::Msrv; use rustc_hir as hir; use rustc_hir::def_id::DefId; use rustc_middle::mir::{ @@ -18,20 +19,22 @@ use std::borrow::Cow; type McfResult = Result<(), (Span, Cow<'static, str>)>; -pub fn is_min_const_fn<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>, msrv: Option<RustcVersion>) -> McfResult { +pub fn is_min_const_fn<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>, msrv: &Msrv) -> McfResult { let def_id = body.source.def_id(); let mut current = def_id; loop { let predicates = tcx.predicates_of(current); for (predicate, _) in predicates.predicates { match predicate.kind().skip_binder() { - ty::PredicateKind::Clause(ty::Clause::RegionOutlives(_)) - | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(_)) + ty::PredicateKind::Clause( + ty::Clause::RegionOutlives(_) + | ty::Clause::TypeOutlives(_) + | ty::Clause::Projection(_) + | ty::Clause::Trait(..), + ) | ty::PredicateKind::WellFormed(_) - | ty::PredicateKind::Clause(ty::Clause::Projection(_)) | ty::PredicateKind::ConstEvaluatable(..) | ty::PredicateKind::ConstEquate(..) - | ty::PredicateKind::Clause(ty::Clause::Trait(..)) | ty::PredicateKind::TypeWellFormedFromEnv(..) => continue, ty::PredicateKind::ObjectSafe(_) => panic!("object safe predicate on function: {predicate:#?}"), ty::PredicateKind::ClosureKind(..) => panic!("closure kind predicate on function: {predicate:#?}"), @@ -281,7 +284,7 @@ fn check_terminator<'tcx>( tcx: TyCtxt<'tcx>, body: &Body<'tcx>, terminator: &Terminator<'tcx>, - msrv: Option<RustcVersion>, + msrv: &Msrv, ) -> McfResult { let span = terminator.source_info.span; match &terminator.kind { @@ -365,7 +368,7 @@ fn check_terminator<'tcx>( } } -fn is_const_fn(tcx: TyCtxt<'_>, def_id: DefId, msrv: Option<RustcVersion>) -> bool { +fn is_const_fn(tcx: TyCtxt<'_>, def_id: DefId, msrv: &Msrv) -> bool { tcx.is_const_fn(def_id) && tcx.lookup_const_stability(def_id).map_or(true, |const_stab| { if let rustc_attr::StabilityLevel::Stable { since, .. } = const_stab.level { @@ -384,15 +387,12 @@ fn is_const_fn(tcx: TyCtxt<'_>, def_id: DefId, msrv: Option<RustcVersion>) -> bo let since = rustc_span::Symbol::intern(short_version); - crate::meets_msrv( - msrv, - RustcVersion::parse(since.as_str()).unwrap_or_else(|err| { - panic!("`rustc_attr::StabilityLevel::Stable::since` is ill-formatted: `{since}`, {err:?}") - }), - ) + msrv.meets(RustcVersion::parse(since.as_str()).unwrap_or_else(|err| { + panic!("`rustc_attr::StabilityLevel::Stable::since` is ill-formatted: `{since}`, {err:?}") + })) } else { // Unstable const fn with the feature enabled. - msrv.is_none() + msrv.current().is_none() } }) } diff --git a/src/tools/clippy/clippy_utils/src/source.rs b/src/tools/clippy/clippy_utils/src/source.rs index eacfa91ba55..cd5dcfdaca3 100644 --- a/src/tools/clippy/clippy_utils/src/source.rs +++ b/src/tools/clippy/clippy_utils/src/source.rs @@ -5,6 +5,7 @@ use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind}; use rustc_lint::{LateContext, LintContext}; +use rustc_session::Session; use rustc_span::hygiene; use rustc_span::source_map::{original_sp, SourceMap}; use rustc_span::{BytePos, Pos, Span, SpanData, SyntaxContext, DUMMY_SP}; @@ -205,10 +206,19 @@ pub fn snippet_with_applicability<'a, T: LintContext>( default: &'a str, applicability: &mut Applicability, ) -> Cow<'a, str> { + snippet_with_applicability_sess(cx.sess(), span, default, applicability) +} + +fn snippet_with_applicability_sess<'a>( + sess: &Session, + span: Span, + default: &'a str, + applicability: &mut Applicability, +) -> Cow<'a, str> { if *applicability != Applicability::Unspecified && span.from_expansion() { *applicability = Applicability::MaybeIncorrect; } - snippet_opt(cx, span).map_or_else( + snippet_opt_sess(sess, span).map_or_else( || { if *applicability == Applicability::MachineApplicable { *applicability = Applicability::HasPlaceholders; @@ -226,8 +236,12 @@ pub fn snippet_with_macro_callsite<'a, T: LintContext>(cx: &T, span: Span, defau } /// Converts a span to a code snippet. Returns `None` if not available. -pub fn snippet_opt<T: LintContext>(cx: &T, span: Span) -> Option<String> { - cx.sess().source_map().span_to_snippet(span).ok() +pub fn snippet_opt(cx: &impl LintContext, span: Span) -> Option<String> { + snippet_opt_sess(cx.sess(), span) +} + +fn snippet_opt_sess(sess: &Session, span: Span) -> Option<String> { + sess.source_map().span_to_snippet(span).ok() } /// Converts a span (from a block) to a code snippet if available, otherwise use default. @@ -277,8 +291,8 @@ pub fn snippet_block<'a, T: LintContext>( /// Same as `snippet_block`, but adapts the applicability level by the rules of /// `snippet_with_applicability`. -pub fn snippet_block_with_applicability<'a, T: LintContext>( - cx: &T, +pub fn snippet_block_with_applicability<'a>( + cx: &impl LintContext, span: Span, default: &'a str, indent_relative_to: Option<Span>, @@ -299,7 +313,17 @@ pub fn snippet_block_with_applicability<'a, T: LintContext>( /// /// This will also return whether or not the snippet is a macro call. pub fn snippet_with_context<'a>( - cx: &LateContext<'_>, + cx: &impl LintContext, + span: Span, + outer: SyntaxContext, + default: &'a str, + applicability: &mut Applicability, +) -> (Cow<'a, str>, bool) { + snippet_with_context_sess(cx.sess(), span, outer, default, applicability) +} + +fn snippet_with_context_sess<'a>( + sess: &Session, span: Span, outer: SyntaxContext, default: &'a str, @@ -318,7 +342,7 @@ pub fn snippet_with_context<'a>( ); ( - snippet_with_applicability(cx, span, default, applicability), + snippet_with_applicability_sess(sess, span, default, applicability), is_macro_call, ) } diff --git a/src/tools/clippy/clippy_utils/src/sugg.rs b/src/tools/clippy/clippy_utils/src/sugg.rs index 3cacdb49377..b66604f33db 100644 --- a/src/tools/clippy/clippy_utils/src/sugg.rs +++ b/src/tools/clippy/clippy_utils/src/sugg.rs @@ -176,25 +176,28 @@ impl<'a> Sugg<'a> { } /// Prepare a suggestion from an expression. - pub fn ast(cx: &EarlyContext<'_>, expr: &ast::Expr, default: &'a str) -> Self { + pub fn ast( + cx: &EarlyContext<'_>, + expr: &ast::Expr, + default: &'a str, + ctxt: SyntaxContext, + app: &mut Applicability, + ) -> Self { use rustc_ast::ast::RangeLimits; - let snippet_without_expansion = |cx, span: Span, default| { - if span.from_expansion() { - snippet_with_macro_callsite(cx, span, default) - } else { - snippet(cx, span, default) - } - }; - + #[expect(clippy::match_wildcard_for_single_variants)] match expr.kind { + _ if expr.span.ctxt() != ctxt => Sugg::NonParen(snippet_with_context(cx, expr.span, ctxt, default, app).0), ast::ExprKind::AddrOf(..) | ast::ExprKind::Box(..) | ast::ExprKind::Closure { .. } | ast::ExprKind::If(..) | ast::ExprKind::Let(..) | ast::ExprKind::Unary(..) - | ast::ExprKind::Match(..) => Sugg::MaybeParen(snippet_without_expansion(cx, expr.span, default)), + | ast::ExprKind::Match(..) => match snippet_with_context(cx, expr.span, ctxt, default, app) { + (snip, false) => Sugg::MaybeParen(snip), + (snip, true) => Sugg::NonParen(snip), + }, ast::ExprKind::Async(..) | ast::ExprKind::Block(..) | ast::ExprKind::Break(..) @@ -224,45 +227,49 @@ impl<'a> Sugg<'a> { | ast::ExprKind::Array(..) | ast::ExprKind::While(..) | ast::ExprKind::Await(..) - | ast::ExprKind::Err => Sugg::NonParen(snippet_without_expansion(cx, expr.span, default)), + | ast::ExprKind::Err => Sugg::NonParen(snippet_with_context(cx, expr.span, ctxt, default, app).0), ast::ExprKind::Range(ref lhs, ref rhs, RangeLimits::HalfOpen) => Sugg::BinOp( AssocOp::DotDot, - lhs.as_ref() - .map_or("".into(), |lhs| snippet_without_expansion(cx, lhs.span, default)), - rhs.as_ref() - .map_or("".into(), |rhs| snippet_without_expansion(cx, rhs.span, default)), + lhs.as_ref().map_or("".into(), |lhs| { + snippet_with_context(cx, lhs.span, ctxt, default, app).0 + }), + rhs.as_ref().map_or("".into(), |rhs| { + snippet_with_context(cx, rhs.span, ctxt, default, app).0 + }), ), ast::ExprKind::Range(ref lhs, ref rhs, RangeLimits::Closed) => Sugg::BinOp( AssocOp::DotDotEq, - lhs.as_ref() - .map_or("".into(), |lhs| snippet_without_expansion(cx, lhs.span, default)), - rhs.as_ref() - .map_or("".into(), |rhs| snippet_without_expansion(cx, rhs.span, default)), + lhs.as_ref().map_or("".into(), |lhs| { + snippet_with_context(cx, lhs.span, ctxt, default, app).0 + }), + rhs.as_ref().map_or("".into(), |rhs| { + snippet_with_context(cx, rhs.span, ctxt, default, app).0 + }), ), ast::ExprKind::Assign(ref lhs, ref rhs, _) => Sugg::BinOp( AssocOp::Assign, - snippet_without_expansion(cx, lhs.span, default), - snippet_without_expansion(cx, rhs.span, default), + snippet_with_context(cx, lhs.span, ctxt, default, app).0, + snippet_with_context(cx, rhs.span, ctxt, default, app).0, ), ast::ExprKind::AssignOp(op, ref lhs, ref rhs) => Sugg::BinOp( astbinop2assignop(op), - snippet_without_expansion(cx, lhs.span, default), - snippet_without_expansion(cx, rhs.span, default), + snippet_with_context(cx, lhs.span, ctxt, default, app).0, + snippet_with_context(cx, rhs.span, ctxt, default, app).0, ), ast::ExprKind::Binary(op, ref lhs, ref rhs) => Sugg::BinOp( AssocOp::from_ast_binop(op.node), - snippet_without_expansion(cx, lhs.span, default), - snippet_without_expansion(cx, rhs.span, default), + snippet_with_context(cx, lhs.span, ctxt, default, app).0, + snippet_with_context(cx, rhs.span, ctxt, default, app).0, ), ast::ExprKind::Cast(ref lhs, ref ty) => Sugg::BinOp( AssocOp::As, - snippet_without_expansion(cx, lhs.span, default), - snippet_without_expansion(cx, ty.span, default), + snippet_with_context(cx, lhs.span, ctxt, default, app).0, + snippet_with_context(cx, ty.span, ctxt, default, app).0, ), ast::ExprKind::Type(ref lhs, ref ty) => Sugg::BinOp( AssocOp::Colon, - snippet_without_expansion(cx, lhs.span, default), - snippet_without_expansion(cx, ty.span, default), + snippet_with_context(cx, lhs.span, ctxt, default, app).0, + snippet_with_context(cx, ty.span, ctxt, default, app).0, ), } } diff --git a/src/tools/clippy/clippy_utils/src/ty.rs b/src/tools/clippy/clippy_utils/src/ty.rs index 2ceda3511fe..bfb2d472a39 100644 --- a/src/tools/clippy/clippy_utils/src/ty.rs +++ b/src/tools/clippy/clippy_utils/src/ty.rs @@ -9,7 +9,10 @@ use rustc_hir as hir; use rustc_hir::def::{CtorKind, CtorOf, DefKind, Res}; use rustc_hir::def_id::DefId; use rustc_hir::{Expr, FnDecl, LangItem, TyKind, Unsafety}; -use rustc_infer::infer::{TyCtxtInferExt, type_variable::{TypeVariableOrigin, TypeVariableOriginKind}}; +use rustc_infer::infer::{ + type_variable::{TypeVariableOrigin, TypeVariableOriginKind}, + TyCtxtInferExt, +}; use rustc_lint::LateContext; use rustc_middle::mir::interpret::{ConstValue, Scalar}; use rustc_middle::ty::{ @@ -189,7 +192,13 @@ pub fn implements_trait<'tcx>( trait_id: DefId, ty_params: &[GenericArg<'tcx>], ) -> bool { - implements_trait_with_env(cx.tcx, cx.param_env, ty, trait_id, ty_params.iter().map(|&arg| Some(arg))) + implements_trait_with_env( + cx.tcx, + cx.param_env, + ty, + trait_id, + ty_params.iter().map(|&arg| Some(arg)), + ) } /// Same as `implements_trait` but allows using a `ParamEnv` different from the lint context. @@ -212,7 +221,11 @@ pub fn implements_trait_with_env<'tcx>( kind: TypeVariableOriginKind::MiscVariable, span: DUMMY_SP, }; - let ty_params = tcx.mk_substs(ty_params.into_iter().map(|arg| arg.unwrap_or_else(|| infcx.next_ty_var(orig).into()))); + let ty_params = tcx.mk_substs( + ty_params + .into_iter() + .map(|arg| arg.unwrap_or_else(|| infcx.next_ty_var(orig).into())), + ); infcx .type_implements_trait(trait_id, [ty.into()].into_iter().chain(ty_params), param_env) .must_apply_modulo_regions() @@ -712,7 +725,9 @@ fn sig_for_projection<'tcx>(cx: &LateContext<'tcx>, ty: ProjectionTy<'tcx>) -> O } inputs = Some(i); }, - PredicateKind::Clause(ty::Clause::Projection(p)) if Some(p.projection_ty.item_def_id) == lang_items.fn_once_output() => { + PredicateKind::Clause(ty::Clause::Projection(p)) + if Some(p.projection_ty.item_def_id) == lang_items.fn_once_output() => + { if output.is_some() { // Multiple different fn trait impls. Is this even allowed? return None; @@ -992,14 +1007,12 @@ pub fn make_projection<'tcx>( debug_assert!( generic_count == substs.len(), - "wrong number of substs for `{:?}`: found `{}` expected `{}`.\n\ + "wrong number of substs for `{:?}`: found `{}` expected `{generic_count}`.\n\ note: the expected parameters are: {:#?}\n\ - the given arguments are: `{:#?}`", + the given arguments are: `{substs:#?}`", assoc_item.def_id, substs.len(), - generic_count, params.map(ty::GenericParamDefKind::descr).collect::<Vec<_>>(), - substs, ); if let Some((idx, (param, arg))) = params @@ -1017,14 +1030,11 @@ pub fn make_projection<'tcx>( { debug_assert!( false, - "mismatched subst type at index {}: expected a {}, found `{:?}`\n\ + "mismatched subst type at index {idx}: expected a {}, found `{arg:?}`\n\ note: the expected parameters are {:#?}\n\ - the given arguments are {:#?}", - idx, + the given arguments are {substs:#?}", param.descr(), - arg, - params.map(ty::GenericParamDefKind::descr).collect::<Vec<_>>(), - substs, + params.map(ty::GenericParamDefKind::descr).collect::<Vec<_>>() ); } } diff --git a/src/tools/clippy/clippy_utils/src/usage.rs b/src/tools/clippy/clippy_utils/src/usage.rs index 797722cfc1f..ab3976a13bd 100644 --- a/src/tools/clippy/clippy_utils/src/usage.rs +++ b/src/tools/clippy/clippy_utils/src/usage.rs @@ -128,7 +128,7 @@ impl<'a, 'tcx> intravisit::Visitor<'tcx> for BindingUsageFinder<'a, 'tcx> { } } - fn visit_path(&mut self, path: &'tcx hir::Path<'tcx>, _: hir::HirId) { + fn visit_path(&mut self, path: &hir::Path<'tcx>, _: hir::HirId) { if let hir::def::Res::Local(id) = path.res { if self.binding_ids.contains(&id) { self.usage_found = true; diff --git a/src/tools/clippy/clippy_utils/src/visitors.rs b/src/tools/clippy/clippy_utils/src/visitors.rs index d4294f18fd5..863fb60fcfc 100644 --- a/src/tools/clippy/clippy_utils/src/visitors.rs +++ b/src/tools/clippy/clippy_utils/src/visitors.rs @@ -170,22 +170,22 @@ where cb: F, } - struct WithStmtGuarg<'a, F> { + struct WithStmtGuard<'a, F> { val: &'a mut RetFinder<F>, prev_in_stmt: bool, } impl<F> RetFinder<F> { - fn inside_stmt(&mut self, in_stmt: bool) -> WithStmtGuarg<'_, F> { + fn inside_stmt(&mut self, in_stmt: bool) -> WithStmtGuard<'_, F> { let prev_in_stmt = std::mem::replace(&mut self.in_stmt, in_stmt); - WithStmtGuarg { + WithStmtGuard { val: self, prev_in_stmt, } } } - impl<F> std::ops::Deref for WithStmtGuarg<'_, F> { + impl<F> std::ops::Deref for WithStmtGuard<'_, F> { type Target = RetFinder<F>; fn deref(&self) -> &Self::Target { @@ -193,13 +193,13 @@ where } } - impl<F> std::ops::DerefMut for WithStmtGuarg<'_, F> { + impl<F> std::ops::DerefMut for WithStmtGuard<'_, F> { fn deref_mut(&mut self) -> &mut Self::Target { self.val } } - impl<F> Drop for WithStmtGuarg<'_, F> { + impl<F> Drop for WithStmtGuard<'_, F> { fn drop(&mut self) { self.val.in_stmt = self.prev_in_stmt; } diff --git a/src/tools/clippy/lintcheck/src/main.rs b/src/tools/clippy/lintcheck/src/main.rs index ee8ab7c1d7c..bd49f096072 100644 --- a/src/tools/clippy/lintcheck/src/main.rs +++ b/src/tools/clippy/lintcheck/src/main.rs @@ -120,8 +120,8 @@ impl ClippyWarning { format!("$CARGO_HOME/{}", stripped.display()) } else { format!( - "target/lintcheck/sources/{}-{}/{}", - crate_name, crate_version, span.file_name + "target/lintcheck/sources/{crate_name}-{crate_version}/{}", + span.file_name ) }; @@ -322,13 +322,13 @@ impl Crate { if config.max_jobs == 1 { println!( - "{}/{} {}% Linting {} {}", - index, total_crates_to_lint, perc, &self.name, &self.version + "{index}/{total_crates_to_lint} {perc}% Linting {} {}", + &self.name, &self.version ); } else { println!( - "{}/{} {}% Linting {} {} in target dir {:?}", - index, total_crates_to_lint, perc, &self.name, &self.version, thread_index + "{index}/{total_crates_to_lint} {perc}% Linting {} {} in target dir {thread_index:?}", + &self.name, &self.version ); } @@ -398,8 +398,7 @@ impl Crate { .output() .unwrap_or_else(|error| { panic!( - "Encountered error:\n{:?}\ncargo_clippy_path: {}\ncrate path:{}\n", - error, + "Encountered error:\n{error:?}\ncargo_clippy_path: {}\ncrate path:{}\n", &cargo_clippy_path.display(), &self.path.display() ); diff --git a/src/tools/clippy/rust-toolchain b/src/tools/clippy/rust-toolchain index a806c156479..19fee38db46 100644 --- a/src/tools/clippy/rust-toolchain +++ b/src/tools/clippy/rust-toolchain @@ -1,3 +1,3 @@ [toolchain] -channel = "nightly-2022-11-21" +channel = "nightly-2022-12-01" components = ["cargo", "llvm-tools", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"] diff --git a/src/tools/clippy/src/driver.rs b/src/tools/clippy/src/driver.rs index ad6132a49ba..9ec4df8e651 100644 --- a/src/tools/clippy/src/driver.rs +++ b/src/tools/clippy/src/driver.rs @@ -1,6 +1,7 @@ #![feature(rustc_private)] #![feature(let_chains)] #![feature(once_cell)] +#![feature(lint_reasons)] #![cfg_attr(feature = "deny-warnings", deny(warnings))] // warn on lints, that are included in `rust-lang/rust`s bootstrap #![warn(rust_2018_idioms, unused_lifetimes)] @@ -90,6 +91,10 @@ fn track_files(parse_sess: &mut ParseSess, conf_path_string: Option<String>) { // During development track the `clippy-driver` executable so that cargo will re-run clippy whenever // it is rebuilt + #[expect( + clippy::collapsible_if, + reason = "Due to a bug in let_chains this if statement can't be collapsed" + )] if cfg!(debug_assertions) { if let Ok(current_exe) = env::current_exe() && let Some(current_exe) = current_exe.to_str() diff --git a/src/tools/clippy/tests/ui-internal/invalid_msrv_attr_impl.fixed b/src/tools/clippy/tests/ui-internal/invalid_msrv_attr_impl.fixed index 900a8fffd40..08634063a57 100644 --- a/src/tools/clippy/tests/ui-internal/invalid_msrv_attr_impl.fixed +++ b/src/tools/clippy/tests/ui-internal/invalid_msrv_attr_impl.fixed @@ -11,9 +11,9 @@ extern crate rustc_middle; #[macro_use] extern crate rustc_session; use clippy_utils::extract_msrv_attr; +use clippy_utils::msrvs::Msrv; use rustc_hir::Expr; use rustc_lint::{EarlyContext, EarlyLintPass, LateContext, LateLintPass}; -use rustc_semver::RustcVersion; declare_lint! { pub TEST_LINT, @@ -22,7 +22,7 @@ declare_lint! { } struct Pass { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl_lint_pass!(Pass => [TEST_LINT]); diff --git a/src/tools/clippy/tests/ui-internal/invalid_msrv_attr_impl.rs b/src/tools/clippy/tests/ui-internal/invalid_msrv_attr_impl.rs index 4bc8164db67..f8af77e6d39 100644 --- a/src/tools/clippy/tests/ui-internal/invalid_msrv_attr_impl.rs +++ b/src/tools/clippy/tests/ui-internal/invalid_msrv_attr_impl.rs @@ -11,9 +11,9 @@ extern crate rustc_middle; #[macro_use] extern crate rustc_session; use clippy_utils::extract_msrv_attr; +use clippy_utils::msrvs::Msrv; use rustc_hir::Expr; use rustc_lint::{EarlyContext, EarlyLintPass, LateContext, LateLintPass}; -use rustc_semver::RustcVersion; declare_lint! { pub TEST_LINT, @@ -22,7 +22,7 @@ declare_lint! { } struct Pass { - msrv: Option<RustcVersion>, + msrv: Msrv, } impl_lint_pass!(Pass => [TEST_LINT]); diff --git a/src/tools/clippy/tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr b/src/tools/clippy/tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr index 8bfc060e991..2a240cc249b 100644 --- a/src/tools/clippy/tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr +++ b/src/tools/clippy/tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr @@ -1,12 +1,3 @@ -error: hardcoded path to a language item - --> $DIR/unnecessary_def_path_hardcoded_path.rs:11:40 - | -LL | const DEREF_MUT_TRAIT: [&str; 4] = ["core", "ops", "deref", "DerefMut"]; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | - = help: convert all references to use `LangItem::DerefMut` - = note: `-D clippy::unnecessary-def-path` implied by `-D warnings` - error: hardcoded path to a diagnostic item --> $DIR/unnecessary_def_path_hardcoded_path.rs:10:36 | @@ -14,6 +5,7 @@ LL | const DEREF_TRAIT: [&str; 4] = ["core", "ops", "deref", "Deref"]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: convert all references to use `sym::Deref` + = note: `-D clippy::unnecessary-def-path` implied by `-D warnings` error: hardcoded path to a diagnostic item --> $DIR/unnecessary_def_path_hardcoded_path.rs:12:43 @@ -23,5 +15,13 @@ LL | const DEREF_TRAIT_METHOD: [&str; 5] = ["core", "ops", "deref", "Deref", | = help: convert all references to use `sym::deref_method` +error: hardcoded path to a language item + --> $DIR/unnecessary_def_path_hardcoded_path.rs:11:40 + | +LL | const DEREF_MUT_TRAIT: [&str; 4] = ["core", "ops", "deref", "DerefMut"]; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = help: convert all references to use `LangItem::DerefMut` + error: aborting due to 3 previous errors diff --git a/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/clippy.toml b/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/clippy.toml new file mode 100644 index 00000000000..b95e806aae2 --- /dev/null +++ b/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/clippy.toml @@ -0,0 +1 @@ +allow-mixed-uninlined-format-args = false diff --git a/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.fixed b/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.fixed new file mode 100644 index 00000000000..aa8b45b5fe7 --- /dev/null +++ b/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.fixed @@ -0,0 +1,14 @@ +// run-rustfix +#![warn(clippy::uninlined_format_args)] + +fn main() { + let local_i32 = 1; + let local_f64 = 2.0; + let local_opt: Option<i32> = Some(3); + + println!("val='{local_i32}'"); + println!("Hello x is {local_f64:.local_i32$}"); + println!("Hello {local_i32} is {local_f64:.*}", 5); + println!("Hello {local_i32} is {local_f64:.*}", 5); + println!("{local_i32}, {}", local_opt.unwrap()); +} diff --git a/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.rs b/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.rs new file mode 100644 index 00000000000..ad2e4863ee8 --- /dev/null +++ b/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.rs @@ -0,0 +1,14 @@ +// run-rustfix +#![warn(clippy::uninlined_format_args)] + +fn main() { + let local_i32 = 1; + let local_f64 = 2.0; + let local_opt: Option<i32> = Some(3); + + println!("val='{}'", local_i32); + println!("Hello {} is {:.*}", "x", local_i32, local_f64); + println!("Hello {} is {:.*}", local_i32, 5, local_f64); + println!("Hello {} is {2:.*}", local_i32, 5, local_f64); + println!("{}, {}", local_i32, local_opt.unwrap()); +} diff --git a/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.stderr b/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.stderr new file mode 100644 index 00000000000..ee941762196 --- /dev/null +++ b/src/tools/clippy/tests/ui-toml/allow_mixed_uninlined_format_args/uninlined_format_args.stderr @@ -0,0 +1,76 @@ +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args.rs:9:5 + | +LL | println!("val='{}'", local_i32); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: `-D clippy::uninlined-format-args` implied by `-D warnings` +help: change this to + | +LL - println!("val='{}'", local_i32); +LL + println!("val='{local_i32}'"); + | + +error: literal with an empty format string + --> $DIR/uninlined_format_args.rs:10:35 + | +LL | println!("Hello {} is {:.*}", "x", local_i32, local_f64); + | ^^^ + | + = note: `-D clippy::print-literal` implied by `-D warnings` +help: try this + | +LL - println!("Hello {} is {:.*}", "x", local_i32, local_f64); +LL + println!("Hello x is {:.*}", local_i32, local_f64); + | + +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args.rs:10:5 + | +LL | println!("Hello {} is {:.*}", "x", local_i32, local_f64); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: change this to + | +LL - println!("Hello {} is {:.*}", "x", local_i32, local_f64); +LL + println!("Hello {} is {local_f64:.local_i32$}", "x"); + | + +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args.rs:11:5 + | +LL | println!("Hello {} is {:.*}", local_i32, 5, local_f64); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: change this to + | +LL - println!("Hello {} is {:.*}", local_i32, 5, local_f64); +LL + println!("Hello {local_i32} is {local_f64:.*}", 5); + | + +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args.rs:12:5 + | +LL | println!("Hello {} is {2:.*}", local_i32, 5, local_f64); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: change this to + | +LL - println!("Hello {} is {2:.*}", local_i32, 5, local_f64); +LL + println!("Hello {local_i32} is {local_f64:.*}", 5); + | + +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args.rs:13:5 + | +LL | println!("{}, {}", local_i32, local_opt.unwrap()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: change this to + | +LL - println!("{}, {}", local_i32, local_opt.unwrap()); +LL + println!("{local_i32}, {}", local_opt.unwrap()); + | + +error: aborting due to 6 previous errors + diff --git a/src/tools/clippy/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr b/src/tools/clippy/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr index f91d285c2e0..01a5e962c94 100644 --- a/src/tools/clippy/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr +++ b/src/tools/clippy/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr @@ -1,6 +1,7 @@ error: error reading Clippy's configuration file `$DIR/clippy.toml`: unknown field `foobar`, expected one of allow-dbg-in-tests allow-expect-in-tests + allow-mixed-uninlined-format-args allow-print-in-tests allow-unwrap-in-tests allowed-scripts diff --git a/src/tools/clippy/tests/ui/almost_complete_letter_range.fixed b/src/tools/clippy/tests/ui/almost_complete_letter_range.fixed index 079b7c000dc..adcbd4d5134 100644 --- a/src/tools/clippy/tests/ui/almost_complete_letter_range.fixed +++ b/src/tools/clippy/tests/ui/almost_complete_letter_range.fixed @@ -2,7 +2,6 @@ // edition:2018 // aux-build:macro_rules.rs -#![feature(custom_inner_attributes)] #![feature(exclusive_range_pattern)] #![feature(stmt_expr_attributes)] #![warn(clippy::almost_complete_letter_range)] @@ -62,16 +61,16 @@ fn main() { b!(); } +#[clippy::msrv = "1.25"] fn _under_msrv() { - #![clippy::msrv = "1.25"] let _ = match 'a' { 'a'...'z' => 1, _ => 2, }; } +#[clippy::msrv = "1.26"] fn _meets_msrv() { - #![clippy::msrv = "1.26"] let _ = 'a'..='z'; let _ = match 'a' { 'a'..='z' => 1, diff --git a/src/tools/clippy/tests/ui/almost_complete_letter_range.rs b/src/tools/clippy/tests/ui/almost_complete_letter_range.rs index a66900a976e..9979316eca4 100644 --- a/src/tools/clippy/tests/ui/almost_complete_letter_range.rs +++ b/src/tools/clippy/tests/ui/almost_complete_letter_range.rs @@ -2,7 +2,6 @@ // edition:2018 // aux-build:macro_rules.rs -#![feature(custom_inner_attributes)] #![feature(exclusive_range_pattern)] #![feature(stmt_expr_attributes)] #![warn(clippy::almost_complete_letter_range)] @@ -62,16 +61,16 @@ fn main() { b!(); } +#[clippy::msrv = "1.25"] fn _under_msrv() { - #![clippy::msrv = "1.25"] let _ = match 'a' { 'a'..'z' => 1, _ => 2, }; } +#[clippy::msrv = "1.26"] fn _meets_msrv() { - #![clippy::msrv = "1.26"] let _ = 'a'..'z'; let _ = match 'a' { 'a'..'z' => 1, diff --git a/src/tools/clippy/tests/ui/almost_complete_letter_range.stderr b/src/tools/clippy/tests/ui/almost_complete_letter_range.stderr index 3de44c72c1b..9abf6d6c5e7 100644 --- a/src/tools/clippy/tests/ui/almost_complete_letter_range.stderr +++ b/src/tools/clippy/tests/ui/almost_complete_letter_range.stderr @@ -1,5 +1,5 @@ error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:30:17 + --> $DIR/almost_complete_letter_range.rs:29:17 | LL | let _ = ('a') ..'z'; | ^^^^^^--^^^ @@ -9,7 +9,7 @@ LL | let _ = ('a') ..'z'; = note: `-D clippy::almost-complete-letter-range` implied by `-D warnings` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:31:17 + --> $DIR/almost_complete_letter_range.rs:30:17 | LL | let _ = 'A' .. ('Z'); | ^^^^--^^^^^^ @@ -17,7 +17,7 @@ LL | let _ = 'A' .. ('Z'); | help: use an inclusive range: `..=` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:37:13 + --> $DIR/almost_complete_letter_range.rs:36:13 | LL | let _ = (b'a')..(b'z'); | ^^^^^^--^^^^^^ @@ -25,7 +25,7 @@ LL | let _ = (b'a')..(b'z'); | help: use an inclusive range: `..=` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:38:13 + --> $DIR/almost_complete_letter_range.rs:37:13 | LL | let _ = b'A'..b'Z'; | ^^^^--^^^^ @@ -33,7 +33,7 @@ LL | let _ = b'A'..b'Z'; | help: use an inclusive range: `..=` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:43:13 + --> $DIR/almost_complete_letter_range.rs:42:13 | LL | let _ = a!()..'z'; | ^^^^--^^^ @@ -41,7 +41,7 @@ LL | let _ = a!()..'z'; | help: use an inclusive range: `..=` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:46:9 + --> $DIR/almost_complete_letter_range.rs:45:9 | LL | b'a'..b'z' if true => 1, | ^^^^--^^^^ @@ -49,7 +49,7 @@ LL | b'a'..b'z' if true => 1, | help: use an inclusive range: `..=` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:47:9 + --> $DIR/almost_complete_letter_range.rs:46:9 | LL | b'A'..b'Z' if true => 2, | ^^^^--^^^^ @@ -57,7 +57,7 @@ LL | b'A'..b'Z' if true => 2, | help: use an inclusive range: `..=` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:54:9 + --> $DIR/almost_complete_letter_range.rs:53:9 | LL | 'a'..'z' if true => 1, | ^^^--^^^ @@ -65,7 +65,7 @@ LL | 'a'..'z' if true => 1, | help: use an inclusive range: `..=` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:55:9 + --> $DIR/almost_complete_letter_range.rs:54:9 | LL | 'A'..'Z' if true => 2, | ^^^--^^^ @@ -73,7 +73,7 @@ LL | 'A'..'Z' if true => 2, | help: use an inclusive range: `..=` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:23:17 + --> $DIR/almost_complete_letter_range.rs:22:17 | LL | let _ = 'a'..'z'; | ^^^--^^^ @@ -86,7 +86,7 @@ LL | b!(); = note: this error originates in the macro `b` (in Nightly builds, run with -Z macro-backtrace for more info) error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:68:9 + --> $DIR/almost_complete_letter_range.rs:67:9 | LL | 'a'..'z' => 1, | ^^^--^^^ @@ -94,7 +94,7 @@ LL | 'a'..'z' => 1, | help: use an inclusive range: `...` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:75:13 + --> $DIR/almost_complete_letter_range.rs:74:13 | LL | let _ = 'a'..'z'; | ^^^--^^^ @@ -102,7 +102,7 @@ LL | let _ = 'a'..'z'; | help: use an inclusive range: `..=` error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:77:9 + --> $DIR/almost_complete_letter_range.rs:76:9 | LL | 'a'..'z' => 1, | ^^^--^^^ diff --git a/src/tools/clippy/tests/ui/cast_abs_to_unsigned.fixed b/src/tools/clippy/tests/ui/cast_abs_to_unsigned.fixed index e6bf944c7a5..8676b562b4f 100644 --- a/src/tools/clippy/tests/ui/cast_abs_to_unsigned.fixed +++ b/src/tools/clippy/tests/ui/cast_abs_to_unsigned.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::cast_abs_to_unsigned)] #![allow(clippy::uninlined_format_args, unused)] @@ -33,16 +32,14 @@ fn main() { let _ = (x as i64 - y as i64).unsigned_abs() as u32; } +#[clippy::msrv = "1.50"] fn msrv_1_50() { - #![clippy::msrv = "1.50"] - let x: i32 = 10; assert_eq!(10u32, x.abs() as u32); } +#[clippy::msrv = "1.51"] fn msrv_1_51() { - #![clippy::msrv = "1.51"] - let x: i32 = 10; assert_eq!(10u32, x.unsigned_abs()); } diff --git a/src/tools/clippy/tests/ui/cast_abs_to_unsigned.rs b/src/tools/clippy/tests/ui/cast_abs_to_unsigned.rs index c87320b5209..5775af874f8 100644 --- a/src/tools/clippy/tests/ui/cast_abs_to_unsigned.rs +++ b/src/tools/clippy/tests/ui/cast_abs_to_unsigned.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::cast_abs_to_unsigned)] #![allow(clippy::uninlined_format_args, unused)] @@ -33,16 +32,14 @@ fn main() { let _ = (x as i64 - y as i64).abs() as u32; } +#[clippy::msrv = "1.50"] fn msrv_1_50() { - #![clippy::msrv = "1.50"] - let x: i32 = 10; assert_eq!(10u32, x.abs() as u32); } +#[clippy::msrv = "1.51"] fn msrv_1_51() { - #![clippy::msrv = "1.51"] - let x: i32 = 10; assert_eq!(10u32, x.abs() as u32); } diff --git a/src/tools/clippy/tests/ui/cast_abs_to_unsigned.stderr b/src/tools/clippy/tests/ui/cast_abs_to_unsigned.stderr index 1b39c554b03..4668554f451 100644 --- a/src/tools/clippy/tests/ui/cast_abs_to_unsigned.stderr +++ b/src/tools/clippy/tests/ui/cast_abs_to_unsigned.stderr @@ -1,5 +1,5 @@ error: casting the result of `i32::abs()` to u32 - --> $DIR/cast_abs_to_unsigned.rs:9:18 + --> $DIR/cast_abs_to_unsigned.rs:8:18 | LL | let y: u32 = x.abs() as u32; | ^^^^^^^^^^^^^^ help: replace with: `x.unsigned_abs()` @@ -7,103 +7,103 @@ LL | let y: u32 = x.abs() as u32; = note: `-D clippy::cast-abs-to-unsigned` implied by `-D warnings` error: casting the result of `i32::abs()` to usize - --> $DIR/cast_abs_to_unsigned.rs:13:20 + --> $DIR/cast_abs_to_unsigned.rs:12:20 | LL | let _: usize = a.abs() as usize; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `i32::abs()` to usize - --> $DIR/cast_abs_to_unsigned.rs:14:20 + --> $DIR/cast_abs_to_unsigned.rs:13:20 | LL | let _: usize = a.abs() as _; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `i32::abs()` to usize - --> $DIR/cast_abs_to_unsigned.rs:15:13 + --> $DIR/cast_abs_to_unsigned.rs:14:13 | LL | let _ = a.abs() as usize; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `i64::abs()` to usize - --> $DIR/cast_abs_to_unsigned.rs:18:13 + --> $DIR/cast_abs_to_unsigned.rs:17:13 | LL | let _ = a.abs() as usize; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `i64::abs()` to u8 - --> $DIR/cast_abs_to_unsigned.rs:19:13 + --> $DIR/cast_abs_to_unsigned.rs:18:13 | LL | let _ = a.abs() as u8; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `i64::abs()` to u16 - --> $DIR/cast_abs_to_unsigned.rs:20:13 + --> $DIR/cast_abs_to_unsigned.rs:19:13 | LL | let _ = a.abs() as u16; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `i64::abs()` to u32 - --> $DIR/cast_abs_to_unsigned.rs:21:13 + --> $DIR/cast_abs_to_unsigned.rs:20:13 | LL | let _ = a.abs() as u32; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `i64::abs()` to u64 - --> $DIR/cast_abs_to_unsigned.rs:22:13 + --> $DIR/cast_abs_to_unsigned.rs:21:13 | LL | let _ = a.abs() as u64; | ^^^^^^^^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `i64::abs()` to u128 - --> $DIR/cast_abs_to_unsigned.rs:23:13 + --> $DIR/cast_abs_to_unsigned.rs:22:13 | LL | let _ = a.abs() as u128; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `isize::abs()` to usize - --> $DIR/cast_abs_to_unsigned.rs:26:13 + --> $DIR/cast_abs_to_unsigned.rs:25:13 | LL | let _ = a.abs() as usize; | ^^^^^^^^^^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `isize::abs()` to u8 - --> $DIR/cast_abs_to_unsigned.rs:27:13 + --> $DIR/cast_abs_to_unsigned.rs:26:13 | LL | let _ = a.abs() as u8; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `isize::abs()` to u16 - --> $DIR/cast_abs_to_unsigned.rs:28:13 + --> $DIR/cast_abs_to_unsigned.rs:27:13 | LL | let _ = a.abs() as u16; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `isize::abs()` to u32 - --> $DIR/cast_abs_to_unsigned.rs:29:13 + --> $DIR/cast_abs_to_unsigned.rs:28:13 | LL | let _ = a.abs() as u32; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `isize::abs()` to u64 - --> $DIR/cast_abs_to_unsigned.rs:30:13 + --> $DIR/cast_abs_to_unsigned.rs:29:13 | LL | let _ = a.abs() as u64; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `isize::abs()` to u128 - --> $DIR/cast_abs_to_unsigned.rs:31:13 + --> $DIR/cast_abs_to_unsigned.rs:30:13 | LL | let _ = a.abs() as u128; | ^^^^^^^ help: replace with: `a.unsigned_abs()` error: casting the result of `i64::abs()` to u32 - --> $DIR/cast_abs_to_unsigned.rs:33:13 + --> $DIR/cast_abs_to_unsigned.rs:32:13 | LL | let _ = (x as i64 - y as i64).abs() as u32; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `(x as i64 - y as i64).unsigned_abs()` error: casting the result of `i32::abs()` to u32 - --> $DIR/cast_abs_to_unsigned.rs:47:23 + --> $DIR/cast_abs_to_unsigned.rs:44:23 | LL | assert_eq!(10u32, x.abs() as u32); | ^^^^^^^^^^^^^^ help: replace with: `x.unsigned_abs()` diff --git a/src/tools/clippy/tests/ui/cast_lossless_bool.fixed b/src/tools/clippy/tests/ui/cast_lossless_bool.fixed index af13b755e31..13b3cf838c9 100644 --- a/src/tools/clippy/tests/ui/cast_lossless_bool.fixed +++ b/src/tools/clippy/tests/ui/cast_lossless_bool.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(dead_code)] #![warn(clippy::cast_lossless)] @@ -42,14 +41,12 @@ mod cast_lossless_in_impl { } } +#[clippy::msrv = "1.27"] fn msrv_1_27() { - #![clippy::msrv = "1.27"] - let _ = true as u8; } +#[clippy::msrv = "1.28"] fn msrv_1_28() { - #![clippy::msrv = "1.28"] - let _ = u8::from(true); } diff --git a/src/tools/clippy/tests/ui/cast_lossless_bool.rs b/src/tools/clippy/tests/ui/cast_lossless_bool.rs index 3b06af899c6..3eed2135562 100644 --- a/src/tools/clippy/tests/ui/cast_lossless_bool.rs +++ b/src/tools/clippy/tests/ui/cast_lossless_bool.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(dead_code)] #![warn(clippy::cast_lossless)] @@ -42,14 +41,12 @@ mod cast_lossless_in_impl { } } +#[clippy::msrv = "1.27"] fn msrv_1_27() { - #![clippy::msrv = "1.27"] - let _ = true as u8; } +#[clippy::msrv = "1.28"] fn msrv_1_28() { - #![clippy::msrv = "1.28"] - let _ = true as u8; } diff --git a/src/tools/clippy/tests/ui/cast_lossless_bool.stderr b/src/tools/clippy/tests/ui/cast_lossless_bool.stderr index 768b033d10a..ce240b70f89 100644 --- a/src/tools/clippy/tests/ui/cast_lossless_bool.stderr +++ b/src/tools/clippy/tests/ui/cast_lossless_bool.stderr @@ -1,5 +1,5 @@ error: casting `bool` to `u8` is more cleanly stated with `u8::from(_)` - --> $DIR/cast_lossless_bool.rs:9:13 + --> $DIR/cast_lossless_bool.rs:8:13 | LL | let _ = true as u8; | ^^^^^^^^^^ help: try: `u8::from(true)` @@ -7,79 +7,79 @@ LL | let _ = true as u8; = note: `-D clippy::cast-lossless` implied by `-D warnings` error: casting `bool` to `u16` is more cleanly stated with `u16::from(_)` - --> $DIR/cast_lossless_bool.rs:10:13 + --> $DIR/cast_lossless_bool.rs:9:13 | LL | let _ = true as u16; | ^^^^^^^^^^^ help: try: `u16::from(true)` error: casting `bool` to `u32` is more cleanly stated with `u32::from(_)` - --> $DIR/cast_lossless_bool.rs:11:13 + --> $DIR/cast_lossless_bool.rs:10:13 | LL | let _ = true as u32; | ^^^^^^^^^^^ help: try: `u32::from(true)` error: casting `bool` to `u64` is more cleanly stated with `u64::from(_)` - --> $DIR/cast_lossless_bool.rs:12:13 + --> $DIR/cast_lossless_bool.rs:11:13 | LL | let _ = true as u64; | ^^^^^^^^^^^ help: try: `u64::from(true)` error: casting `bool` to `u128` is more cleanly stated with `u128::from(_)` - --> $DIR/cast_lossless_bool.rs:13:13 + --> $DIR/cast_lossless_bool.rs:12:13 | LL | let _ = true as u128; | ^^^^^^^^^^^^ help: try: `u128::from(true)` error: casting `bool` to `usize` is more cleanly stated with `usize::from(_)` - --> $DIR/cast_lossless_bool.rs:14:13 + --> $DIR/cast_lossless_bool.rs:13:13 | LL | let _ = true as usize; | ^^^^^^^^^^^^^ help: try: `usize::from(true)` error: casting `bool` to `i8` is more cleanly stated with `i8::from(_)` - --> $DIR/cast_lossless_bool.rs:16:13 + --> $DIR/cast_lossless_bool.rs:15:13 | LL | let _ = true as i8; | ^^^^^^^^^^ help: try: `i8::from(true)` error: casting `bool` to `i16` is more cleanly stated with `i16::from(_)` - --> $DIR/cast_lossless_bool.rs:17:13 + --> $DIR/cast_lossless_bool.rs:16:13 | LL | let _ = true as i16; | ^^^^^^^^^^^ help: try: `i16::from(true)` error: casting `bool` to `i32` is more cleanly stated with `i32::from(_)` - --> $DIR/cast_lossless_bool.rs:18:13 + --> $DIR/cast_lossless_bool.rs:17:13 | LL | let _ = true as i32; | ^^^^^^^^^^^ help: try: `i32::from(true)` error: casting `bool` to `i64` is more cleanly stated with `i64::from(_)` - --> $DIR/cast_lossless_bool.rs:19:13 + --> $DIR/cast_lossless_bool.rs:18:13 | LL | let _ = true as i64; | ^^^^^^^^^^^ help: try: `i64::from(true)` error: casting `bool` to `i128` is more cleanly stated with `i128::from(_)` - --> $DIR/cast_lossless_bool.rs:20:13 + --> $DIR/cast_lossless_bool.rs:19:13 | LL | let _ = true as i128; | ^^^^^^^^^^^^ help: try: `i128::from(true)` error: casting `bool` to `isize` is more cleanly stated with `isize::from(_)` - --> $DIR/cast_lossless_bool.rs:21:13 + --> $DIR/cast_lossless_bool.rs:20:13 | LL | let _ = true as isize; | ^^^^^^^^^^^^^ help: try: `isize::from(true)` error: casting `bool` to `u16` is more cleanly stated with `u16::from(_)` - --> $DIR/cast_lossless_bool.rs:24:13 + --> $DIR/cast_lossless_bool.rs:23:13 | LL | let _ = (true | false) as u16; | ^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(true | false)` error: casting `bool` to `u8` is more cleanly stated with `u8::from(_)` - --> $DIR/cast_lossless_bool.rs:54:13 + --> $DIR/cast_lossless_bool.rs:51:13 | LL | let _ = true as u8; | ^^^^^^^^^^ help: try: `u8::from(true)` diff --git a/src/tools/clippy/tests/ui/cfg_attr_rustfmt.fixed b/src/tools/clippy/tests/ui/cfg_attr_rustfmt.fixed index 8a5645b22ed..b970b1209b6 100644 --- a/src/tools/clippy/tests/ui/cfg_attr_rustfmt.fixed +++ b/src/tools/clippy/tests/ui/cfg_attr_rustfmt.fixed @@ -1,5 +1,5 @@ // run-rustfix -#![feature(stmt_expr_attributes, custom_inner_attributes)] +#![feature(stmt_expr_attributes)] #![allow(unused, clippy::no_effect, clippy::unnecessary_operation)] #![warn(clippy::deprecated_cfg_attr)] @@ -30,16 +30,14 @@ mod foo { pub fn f() {} } +#[clippy::msrv = "1.29"] fn msrv_1_29() { - #![clippy::msrv = "1.29"] - #[cfg_attr(rustfmt, rustfmt::skip)] 1+29; } +#[clippy::msrv = "1.30"] fn msrv_1_30() { - #![clippy::msrv = "1.30"] - #[rustfmt::skip] 1+30; } diff --git a/src/tools/clippy/tests/ui/cfg_attr_rustfmt.rs b/src/tools/clippy/tests/ui/cfg_attr_rustfmt.rs index 2fb140efae7..0a8e6a89d8a 100644 --- a/src/tools/clippy/tests/ui/cfg_attr_rustfmt.rs +++ b/src/tools/clippy/tests/ui/cfg_attr_rustfmt.rs @@ -1,5 +1,5 @@ // run-rustfix -#![feature(stmt_expr_attributes, custom_inner_attributes)] +#![feature(stmt_expr_attributes)] #![allow(unused, clippy::no_effect, clippy::unnecessary_operation)] #![warn(clippy::deprecated_cfg_attr)] @@ -30,16 +30,14 @@ mod foo { pub fn f() {} } +#[clippy::msrv = "1.29"] fn msrv_1_29() { - #![clippy::msrv = "1.29"] - #[cfg_attr(rustfmt, rustfmt::skip)] 1+29; } +#[clippy::msrv = "1.30"] fn msrv_1_30() { - #![clippy::msrv = "1.30"] - #[cfg_attr(rustfmt, rustfmt::skip)] 1+30; } diff --git a/src/tools/clippy/tests/ui/cfg_attr_rustfmt.stderr b/src/tools/clippy/tests/ui/cfg_attr_rustfmt.stderr index 08df7b2b39a..524a2bf7248 100644 --- a/src/tools/clippy/tests/ui/cfg_attr_rustfmt.stderr +++ b/src/tools/clippy/tests/ui/cfg_attr_rustfmt.stderr @@ -13,7 +13,7 @@ LL | #[cfg_attr(rustfmt, rustfmt_skip)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `#[rustfmt::skip]` error: `cfg_attr` is deprecated for rustfmt and got replaced by tool attributes - --> $DIR/cfg_attr_rustfmt.rs:43:5 + --> $DIR/cfg_attr_rustfmt.rs:41:5 | LL | #[cfg_attr(rustfmt, rustfmt::skip)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `#[rustfmt::skip]` diff --git a/src/tools/clippy/tests/ui/checked_conversions.fixed b/src/tools/clippy/tests/ui/checked_conversions.fixed index f936957cb40..e279ba3147b 100644 --- a/src/tools/clippy/tests/ui/checked_conversions.fixed +++ b/src/tools/clippy/tests/ui/checked_conversions.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow( clippy::cast_lossless, unused, @@ -78,16 +77,14 @@ pub const fn issue_8898(i: u32) -> bool { i <= i32::MAX as u32 } +#[clippy::msrv = "1.33"] fn msrv_1_33() { - #![clippy::msrv = "1.33"] - let value: i64 = 33; let _ = value <= (u32::MAX as i64) && value >= 0; } +#[clippy::msrv = "1.34"] fn msrv_1_34() { - #![clippy::msrv = "1.34"] - let value: i64 = 34; let _ = u32::try_from(value).is_ok(); } diff --git a/src/tools/clippy/tests/ui/checked_conversions.rs b/src/tools/clippy/tests/ui/checked_conversions.rs index 77aec713ff3..9d7a40995c3 100644 --- a/src/tools/clippy/tests/ui/checked_conversions.rs +++ b/src/tools/clippy/tests/ui/checked_conversions.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow( clippy::cast_lossless, unused, @@ -78,16 +77,14 @@ pub const fn issue_8898(i: u32) -> bool { i <= i32::MAX as u32 } +#[clippy::msrv = "1.33"] fn msrv_1_33() { - #![clippy::msrv = "1.33"] - let value: i64 = 33; let _ = value <= (u32::MAX as i64) && value >= 0; } +#[clippy::msrv = "1.34"] fn msrv_1_34() { - #![clippy::msrv = "1.34"] - let value: i64 = 34; let _ = value <= (u32::MAX as i64) && value >= 0; } diff --git a/src/tools/clippy/tests/ui/checked_conversions.stderr b/src/tools/clippy/tests/ui/checked_conversions.stderr index b2bf7af8daf..273ead73bda 100644 --- a/src/tools/clippy/tests/ui/checked_conversions.stderr +++ b/src/tools/clippy/tests/ui/checked_conversions.stderr @@ -1,5 +1,5 @@ error: checked cast can be simplified - --> $DIR/checked_conversions.rs:17:13 + --> $DIR/checked_conversions.rs:16:13 | LL | let _ = value <= (u32::max_value() as i64) && value >= 0; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::try_from(value).is_ok()` @@ -7,97 +7,97 @@ LL | let _ = value <= (u32::max_value() as i64) && value >= 0; = note: `-D clippy::checked-conversions` implied by `-D warnings` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:18:13 + --> $DIR/checked_conversions.rs:17:13 | LL | let _ = value <= (u32::MAX as i64) && value >= 0; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:22:13 + --> $DIR/checked_conversions.rs:21:13 | LL | let _ = value <= i64::from(u16::max_value()) && value >= 0; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:23:13 + --> $DIR/checked_conversions.rs:22:13 | LL | let _ = value <= i64::from(u16::MAX) && value >= 0; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:27:13 + --> $DIR/checked_conversions.rs:26:13 | LL | let _ = value <= (u8::max_value() as isize) && value >= 0; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u8::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:28:13 + --> $DIR/checked_conversions.rs:27:13 | LL | let _ = value <= (u8::MAX as isize) && value >= 0; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u8::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:34:13 + --> $DIR/checked_conversions.rs:33:13 | LL | let _ = value <= (i32::max_value() as i64) && value >= (i32::min_value() as i64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:35:13 + --> $DIR/checked_conversions.rs:34:13 | LL | let _ = value <= (i32::MAX as i64) && value >= (i32::MIN as i64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:39:13 + --> $DIR/checked_conversions.rs:38:13 | LL | let _ = value <= i64::from(i16::max_value()) && value >= i64::from(i16::min_value()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i16::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:40:13 + --> $DIR/checked_conversions.rs:39:13 | LL | let _ = value <= i64::from(i16::MAX) && value >= i64::from(i16::MIN); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i16::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:46:13 + --> $DIR/checked_conversions.rs:45:13 | LL | let _ = value <= i32::max_value() as u32; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:47:13 + --> $DIR/checked_conversions.rs:46:13 | LL | let _ = value <= i32::MAX as u32; | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:51:13 + --> $DIR/checked_conversions.rs:50:13 | LL | let _ = value <= isize::max_value() as usize && value as i32 == 5; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `isize::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:52:13 + --> $DIR/checked_conversions.rs:51:13 | LL | let _ = value <= isize::MAX as usize && value as i32 == 5; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `isize::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:56:13 + --> $DIR/checked_conversions.rs:55:13 | LL | let _ = value <= u16::max_value() as u32 && value as i32 == 5; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:57:13 + --> $DIR/checked_conversions.rs:56:13 | LL | let _ = value <= u16::MAX as u32 && value as i32 == 5; | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::try_from(value).is_ok()` error: checked cast can be simplified - --> $DIR/checked_conversions.rs:92:13 + --> $DIR/checked_conversions.rs:89:13 | LL | let _ = value <= (u32::MAX as i64) && value >= 0; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::try_from(value).is_ok()` diff --git a/src/tools/clippy/tests/ui/cloned_instead_of_copied.fixed b/src/tools/clippy/tests/ui/cloned_instead_of_copied.fixed index 42ed232d100..ecbfc1feedf 100644 --- a/src/tools/clippy/tests/ui/cloned_instead_of_copied.fixed +++ b/src/tools/clippy/tests/ui/cloned_instead_of_copied.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::cloned_instead_of_copied)] #![allow(unused)] @@ -17,23 +16,20 @@ fn main() { let _ = Some(&String::new()).cloned(); } +#[clippy::msrv = "1.34"] fn msrv_1_34() { - #![clippy::msrv = "1.34"] - let _ = [1].iter().cloned(); let _ = Some(&1).cloned(); } +#[clippy::msrv = "1.35"] fn msrv_1_35() { - #![clippy::msrv = "1.35"] - let _ = [1].iter().cloned(); let _ = Some(&1).copied(); // Option::copied needs 1.35 } +#[clippy::msrv = "1.36"] fn msrv_1_36() { - #![clippy::msrv = "1.36"] - let _ = [1].iter().copied(); // Iterator::copied needs 1.36 let _ = Some(&1).copied(); } diff --git a/src/tools/clippy/tests/ui/cloned_instead_of_copied.rs b/src/tools/clippy/tests/ui/cloned_instead_of_copied.rs index 471bd9654cc..163dc3dddce 100644 --- a/src/tools/clippy/tests/ui/cloned_instead_of_copied.rs +++ b/src/tools/clippy/tests/ui/cloned_instead_of_copied.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::cloned_instead_of_copied)] #![allow(unused)] @@ -17,23 +16,20 @@ fn main() { let _ = Some(&String::new()).cloned(); } +#[clippy::msrv = "1.34"] fn msrv_1_34() { - #![clippy::msrv = "1.34"] - let _ = [1].iter().cloned(); let _ = Some(&1).cloned(); } +#[clippy::msrv = "1.35"] fn msrv_1_35() { - #![clippy::msrv = "1.35"] - let _ = [1].iter().cloned(); let _ = Some(&1).cloned(); // Option::copied needs 1.35 } +#[clippy::msrv = "1.36"] fn msrv_1_36() { - #![clippy::msrv = "1.36"] - let _ = [1].iter().cloned(); // Iterator::copied needs 1.36 let _ = Some(&1).cloned(); } diff --git a/src/tools/clippy/tests/ui/cloned_instead_of_copied.stderr b/src/tools/clippy/tests/ui/cloned_instead_of_copied.stderr index 914c9a91e83..e0361acd956 100644 --- a/src/tools/clippy/tests/ui/cloned_instead_of_copied.stderr +++ b/src/tools/clippy/tests/ui/cloned_instead_of_copied.stderr @@ -1,5 +1,5 @@ error: used `cloned` where `copied` could be used instead - --> $DIR/cloned_instead_of_copied.rs:9:24 + --> $DIR/cloned_instead_of_copied.rs:8:24 | LL | let _ = [1].iter().cloned(); | ^^^^^^ help: try: `copied` @@ -7,43 +7,43 @@ LL | let _ = [1].iter().cloned(); = note: `-D clippy::cloned-instead-of-copied` implied by `-D warnings` error: used `cloned` where `copied` could be used instead - --> $DIR/cloned_instead_of_copied.rs:10:31 + --> $DIR/cloned_instead_of_copied.rs:9:31 | LL | let _ = vec!["hi"].iter().cloned(); | ^^^^^^ help: try: `copied` error: used `cloned` where `copied` could be used instead - --> $DIR/cloned_instead_of_copied.rs:11:22 + --> $DIR/cloned_instead_of_copied.rs:10:22 | LL | let _ = Some(&1).cloned(); | ^^^^^^ help: try: `copied` error: used `cloned` where `copied` could be used instead - --> $DIR/cloned_instead_of_copied.rs:12:34 + --> $DIR/cloned_instead_of_copied.rs:11:34 | LL | let _ = Box::new([1].iter()).cloned(); | ^^^^^^ help: try: `copied` error: used `cloned` where `copied` could be used instead - --> $DIR/cloned_instead_of_copied.rs:13:32 + --> $DIR/cloned_instead_of_copied.rs:12:32 | LL | let _ = Box::new(Some(&1)).cloned(); | ^^^^^^ help: try: `copied` error: used `cloned` where `copied` could be used instead - --> $DIR/cloned_instead_of_copied.rs:31:22 + --> $DIR/cloned_instead_of_copied.rs:28:22 | LL | let _ = Some(&1).cloned(); // Option::copied needs 1.35 | ^^^^^^ help: try: `copied` error: used `cloned` where `copied` could be used instead - --> $DIR/cloned_instead_of_copied.rs:37:24 + --> $DIR/cloned_instead_of_copied.rs:33:24 | LL | let _ = [1].iter().cloned(); // Iterator::copied needs 1.36 | ^^^^^^ help: try: `copied` error: used `cloned` where `copied` could be used instead - --> $DIR/cloned_instead_of_copied.rs:38:22 + --> $DIR/cloned_instead_of_copied.rs:34:22 | LL | let _ = Some(&1).cloned(); | ^^^^^^ help: try: `copied` diff --git a/src/tools/clippy/tests/ui/err_expect.fixed b/src/tools/clippy/tests/ui/err_expect.fixed index 3bac738acd6..b63cbd8a8e6 100644 --- a/src/tools/clippy/tests/ui/err_expect.fixed +++ b/src/tools/clippy/tests/ui/err_expect.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused)] struct MyTypeNonDebug; @@ -16,16 +15,14 @@ fn main() { test_non_debug.err().expect("Testing non debug type"); } +#[clippy::msrv = "1.16"] fn msrv_1_16() { - #![clippy::msrv = "1.16"] - let x: Result<u32, &str> = Ok(16); x.err().expect("16"); } +#[clippy::msrv = "1.17"] fn msrv_1_17() { - #![clippy::msrv = "1.17"] - let x: Result<u32, &str> = Ok(17); x.expect_err("17"); } diff --git a/src/tools/clippy/tests/ui/err_expect.rs b/src/tools/clippy/tests/ui/err_expect.rs index 6e7c47d9ad3..c081a745fb4 100644 --- a/src/tools/clippy/tests/ui/err_expect.rs +++ b/src/tools/clippy/tests/ui/err_expect.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused)] struct MyTypeNonDebug; @@ -16,16 +15,14 @@ fn main() { test_non_debug.err().expect("Testing non debug type"); } +#[clippy::msrv = "1.16"] fn msrv_1_16() { - #![clippy::msrv = "1.16"] - let x: Result<u32, &str> = Ok(16); x.err().expect("16"); } +#[clippy::msrv = "1.17"] fn msrv_1_17() { - #![clippy::msrv = "1.17"] - let x: Result<u32, &str> = Ok(17); x.err().expect("17"); } diff --git a/src/tools/clippy/tests/ui/err_expect.stderr b/src/tools/clippy/tests/ui/err_expect.stderr index 91a6cf8de65..82c0754cfb0 100644 --- a/src/tools/clippy/tests/ui/err_expect.stderr +++ b/src/tools/clippy/tests/ui/err_expect.stderr @@ -1,5 +1,5 @@ error: called `.err().expect()` on a `Result` value - --> $DIR/err_expect.rs:13:16 + --> $DIR/err_expect.rs:12:16 | LL | test_debug.err().expect("Testing debug type"); | ^^^^^^^^^^^^ help: try: `expect_err` @@ -7,7 +7,7 @@ LL | test_debug.err().expect("Testing debug type"); = note: `-D clippy::err-expect` implied by `-D warnings` error: called `.err().expect()` on a `Result` value - --> $DIR/err_expect.rs:30:7 + --> $DIR/err_expect.rs:27:7 | LL | x.err().expect("17"); | ^^^^^^^^^^^^ help: try: `expect_err` diff --git a/src/tools/clippy/tests/ui/eta.fixed b/src/tools/clippy/tests/ui/eta.fixed index a9cc80aaaf6..dc129591eac 100644 --- a/src/tools/clippy/tests/ui/eta.fixed +++ b/src/tools/clippy/tests/ui/eta.fixed @@ -316,3 +316,25 @@ pub fn mutable_impl_fn_mut(mut f: impl FnMut(), mut f_used_once: impl FnMut()) - move || takes_fn_mut(&mut f_used_once) } + +impl dyn TestTrait + '_ { + fn method_on_dyn(&self) -> bool { + false + } +} + +// https://github.com/rust-lang/rust-clippy/issues/7746 +fn angle_brackets_and_substs() { + let array_opt: Option<&[u8; 3]> = Some(&[4, 8, 7]); + array_opt.map(<[u8; 3]>::as_slice); + + let slice_opt: Option<&[u8]> = Some(b"slice"); + slice_opt.map(<[u8]>::len); + + let ptr_opt: Option<*const usize> = Some(&487); + ptr_opt.map(<*const usize>::is_null); + + let test_struct = TestStruct { some_ref: &487 }; + let dyn_opt: Option<&dyn TestTrait> = Some(&test_struct); + dyn_opt.map(<dyn TestTrait>::method_on_dyn); +} diff --git a/src/tools/clippy/tests/ui/eta.rs b/src/tools/clippy/tests/ui/eta.rs index cc99906ccd6..025fd6a0b7a 100644 --- a/src/tools/clippy/tests/ui/eta.rs +++ b/src/tools/clippy/tests/ui/eta.rs @@ -316,3 +316,25 @@ pub fn mutable_impl_fn_mut(mut f: impl FnMut(), mut f_used_once: impl FnMut()) - move || takes_fn_mut(|| f_used_once()) } + +impl dyn TestTrait + '_ { + fn method_on_dyn(&self) -> bool { + false + } +} + +// https://github.com/rust-lang/rust-clippy/issues/7746 +fn angle_brackets_and_substs() { + let array_opt: Option<&[u8; 3]> = Some(&[4, 8, 7]); + array_opt.map(|a| a.as_slice()); + + let slice_opt: Option<&[u8]> = Some(b"slice"); + slice_opt.map(|s| s.len()); + + let ptr_opt: Option<*const usize> = Some(&487); + ptr_opt.map(|p| p.is_null()); + + let test_struct = TestStruct { some_ref: &487 }; + let dyn_opt: Option<&dyn TestTrait> = Some(&test_struct); + dyn_opt.map(|d| d.method_on_dyn()); +} diff --git a/src/tools/clippy/tests/ui/eta.stderr b/src/tools/clippy/tests/ui/eta.stderr index 434706b7e25..a521fb86860 100644 --- a/src/tools/clippy/tests/ui/eta.stderr +++ b/src/tools/clippy/tests/ui/eta.stderr @@ -134,5 +134,29 @@ error: redundant closure LL | move || takes_fn_mut(|| f_used_once()) | ^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `&mut f_used_once` -error: aborting due to 22 previous errors +error: redundant closure + --> $DIR/eta.rs:329:19 + | +LL | array_opt.map(|a| a.as_slice()); + | ^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `<[u8; 3]>::as_slice` + +error: redundant closure + --> $DIR/eta.rs:332:19 + | +LL | slice_opt.map(|s| s.len()); + | ^^^^^^^^^^^ help: replace the closure with the method itself: `<[u8]>::len` + +error: redundant closure + --> $DIR/eta.rs:335:17 + | +LL | ptr_opt.map(|p| p.is_null()); + | ^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `<*const usize>::is_null` + +error: redundant closure + --> $DIR/eta.rs:339:17 + | +LL | dyn_opt.map(|d| d.method_on_dyn()); + | ^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `<dyn TestTrait>::method_on_dyn` + +error: aborting due to 26 previous errors diff --git a/src/tools/clippy/tests/ui/explicit_auto_deref.fixed b/src/tools/clippy/tests/ui/explicit_auto_deref.fixed index 59ff5e4040a..475fae5e823 100644 --- a/src/tools/clippy/tests/ui/explicit_auto_deref.fixed +++ b/src/tools/clippy/tests/ui/explicit_auto_deref.fixed @@ -277,4 +277,8 @@ fn main() { unimplemented!() } let _: String = takes_assoc(&*String::new()); + + // Issue #9901 + fn takes_ref(_: &i32) {} + takes_ref(*Box::new(&0i32)); } diff --git a/src/tools/clippy/tests/ui/explicit_auto_deref.rs b/src/tools/clippy/tests/ui/explicit_auto_deref.rs index bcfb60c3278..c1894258f4d 100644 --- a/src/tools/clippy/tests/ui/explicit_auto_deref.rs +++ b/src/tools/clippy/tests/ui/explicit_auto_deref.rs @@ -277,4 +277,8 @@ fn main() { unimplemented!() } let _: String = takes_assoc(&*String::new()); + + // Issue #9901 + fn takes_ref(_: &i32) {} + takes_ref(*Box::new(&0i32)); } diff --git a/src/tools/clippy/tests/ui/filter_map_next_fixable.fixed b/src/tools/clippy/tests/ui/filter_map_next_fixable.fixed index 41828ddd7ac..462d46169fc 100644 --- a/src/tools/clippy/tests/ui/filter_map_next_fixable.fixed +++ b/src/tools/clippy/tests/ui/filter_map_next_fixable.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::all, clippy::pedantic)] #![allow(unused)] @@ -11,16 +10,14 @@ fn main() { assert_eq!(element, Some(1)); } +#[clippy::msrv = "1.29"] fn msrv_1_29() { - #![clippy::msrv = "1.29"] - let a = ["1", "lol", "3", "NaN", "5"]; let _: Option<i32> = a.iter().filter_map(|s| s.parse().ok()).next(); } +#[clippy::msrv = "1.30"] fn msrv_1_30() { - #![clippy::msrv = "1.30"] - let a = ["1", "lol", "3", "NaN", "5"]; let _: Option<i32> = a.iter().find_map(|s| s.parse().ok()); } diff --git a/src/tools/clippy/tests/ui/filter_map_next_fixable.rs b/src/tools/clippy/tests/ui/filter_map_next_fixable.rs index be492a81b45..2ea00cf7307 100644 --- a/src/tools/clippy/tests/ui/filter_map_next_fixable.rs +++ b/src/tools/clippy/tests/ui/filter_map_next_fixable.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::all, clippy::pedantic)] #![allow(unused)] @@ -11,16 +10,14 @@ fn main() { assert_eq!(element, Some(1)); } +#[clippy::msrv = "1.29"] fn msrv_1_29() { - #![clippy::msrv = "1.29"] - let a = ["1", "lol", "3", "NaN", "5"]; let _: Option<i32> = a.iter().filter_map(|s| s.parse().ok()).next(); } +#[clippy::msrv = "1.30"] fn msrv_1_30() { - #![clippy::msrv = "1.30"] - let a = ["1", "lol", "3", "NaN", "5"]; let _: Option<i32> = a.iter().filter_map(|s| s.parse().ok()).next(); } diff --git a/src/tools/clippy/tests/ui/filter_map_next_fixable.stderr b/src/tools/clippy/tests/ui/filter_map_next_fixable.stderr index e789efeabd5..a9fc6abe88f 100644 --- a/src/tools/clippy/tests/ui/filter_map_next_fixable.stderr +++ b/src/tools/clippy/tests/ui/filter_map_next_fixable.stderr @@ -1,5 +1,5 @@ error: called `filter_map(..).next()` on an `Iterator`. This is more succinctly expressed by calling `.find_map(..)` instead - --> $DIR/filter_map_next_fixable.rs:10:32 + --> $DIR/filter_map_next_fixable.rs:9:32 | LL | let element: Option<i32> = a.iter().filter_map(|s| s.parse().ok()).next(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `a.iter().find_map(|s| s.parse().ok())` @@ -7,7 +7,7 @@ LL | let element: Option<i32> = a.iter().filter_map(|s| s.parse().ok()).next = note: `-D clippy::filter-map-next` implied by `-D warnings` error: called `filter_map(..).next()` on an `Iterator`. This is more succinctly expressed by calling `.find_map(..)` instead - --> $DIR/filter_map_next_fixable.rs:25:26 + --> $DIR/filter_map_next_fixable.rs:22:26 | LL | let _: Option<i32> = a.iter().filter_map(|s| s.parse().ok()).next(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `a.iter().find_map(|s| s.parse().ok())` diff --git a/src/tools/clippy/tests/ui/from_over_into.fixed b/src/tools/clippy/tests/ui/from_over_into.fixed index 1cf49ca45f4..125c9a69cd3 100644 --- a/src/tools/clippy/tests/ui/from_over_into.fixed +++ b/src/tools/clippy/tests/ui/from_over_into.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::from_over_into)] #![allow(unused)] @@ -60,9 +59,8 @@ impl From<String> for A { } } +#[clippy::msrv = "1.40"] fn msrv_1_40() { - #![clippy::msrv = "1.40"] - struct FromOverInto<T>(Vec<T>); impl<T> Into<FromOverInto<T>> for Vec<T> { @@ -72,9 +70,8 @@ fn msrv_1_40() { } } +#[clippy::msrv = "1.41"] fn msrv_1_41() { - #![clippy::msrv = "1.41"] - struct FromOverInto<T>(Vec<T>); impl<T> From<Vec<T>> for FromOverInto<T> { diff --git a/src/tools/clippy/tests/ui/from_over_into.rs b/src/tools/clippy/tests/ui/from_over_into.rs index d30f3c3fc92..5aa127bfabe 100644 --- a/src/tools/clippy/tests/ui/from_over_into.rs +++ b/src/tools/clippy/tests/ui/from_over_into.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::from_over_into)] #![allow(unused)] @@ -60,9 +59,8 @@ impl From<String> for A { } } +#[clippy::msrv = "1.40"] fn msrv_1_40() { - #![clippy::msrv = "1.40"] - struct FromOverInto<T>(Vec<T>); impl<T> Into<FromOverInto<T>> for Vec<T> { @@ -72,9 +70,8 @@ fn msrv_1_40() { } } +#[clippy::msrv = "1.41"] fn msrv_1_41() { - #![clippy::msrv = "1.41"] - struct FromOverInto<T>(Vec<T>); impl<T> Into<FromOverInto<T>> for Vec<T> { diff --git a/src/tools/clippy/tests/ui/from_over_into.stderr b/src/tools/clippy/tests/ui/from_over_into.stderr index 9c2a7c04c36..a1764a5ea12 100644 --- a/src/tools/clippy/tests/ui/from_over_into.stderr +++ b/src/tools/clippy/tests/ui/from_over_into.stderr @@ -1,5 +1,5 @@ error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:10:1 + --> $DIR/from_over_into.rs:9:1 | LL | impl Into<StringWrapper> for String { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -13,7 +13,7 @@ LL ~ StringWrapper(val) | error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:18:1 + --> $DIR/from_over_into.rs:17:1 | LL | impl Into<SelfType> for String { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -26,7 +26,7 @@ LL ~ SelfType(String::new()) | error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:33:1 + --> $DIR/from_over_into.rs:32:1 | LL | impl Into<SelfKeywords> for X { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -41,7 +41,7 @@ LL ~ let _: X = val; | error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:45:1 + --> $DIR/from_over_into.rs:44:1 | LL | impl core::convert::Into<bool> for crate::ExplicitPaths { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -59,7 +59,7 @@ LL ~ val.0 | error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:80:5 + --> $DIR/from_over_into.rs:77:5 | LL | impl<T> Into<FromOverInto<T>> for Vec<T> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/tools/clippy/tests/ui/if_then_some_else_none.rs b/src/tools/clippy/tests/ui/if_then_some_else_none.rs index 3bc3a039524..0e89fdb0dfa 100644 --- a/src/tools/clippy/tests/ui/if_then_some_else_none.rs +++ b/src/tools/clippy/tests/ui/if_then_some_else_none.rs @@ -1,5 +1,4 @@ #![warn(clippy::if_then_some_else_none)] -#![feature(custom_inner_attributes)] fn main() { // Should issue an error. @@ -66,8 +65,8 @@ fn main() { let _ = if foo() { into_some("foo") } else { None }; } +#[clippy::msrv = "1.49"] fn _msrv_1_49() { - #![clippy::msrv = "1.49"] // `bool::then` was stabilized in 1.50. Do not lint this let _ = if foo() { println!("true!"); @@ -77,8 +76,8 @@ fn _msrv_1_49() { }; } +#[clippy::msrv = "1.50"] fn _msrv_1_50() { - #![clippy::msrv = "1.50"] let _ = if foo() { println!("true!"); Some(150) diff --git a/src/tools/clippy/tests/ui/if_then_some_else_none.stderr b/src/tools/clippy/tests/ui/if_then_some_else_none.stderr index 24e0b5947f1..d728a3c31a3 100644 --- a/src/tools/clippy/tests/ui/if_then_some_else_none.stderr +++ b/src/tools/clippy/tests/ui/if_then_some_else_none.stderr @@ -1,5 +1,5 @@ error: this could be simplified with `bool::then` - --> $DIR/if_then_some_else_none.rs:6:13 + --> $DIR/if_then_some_else_none.rs:5:13 | LL | let _ = if foo() { | _____________^ @@ -14,7 +14,7 @@ LL | | }; = note: `-D clippy::if-then-some-else-none` implied by `-D warnings` error: this could be simplified with `bool::then` - --> $DIR/if_then_some_else_none.rs:14:13 + --> $DIR/if_then_some_else_none.rs:13:13 | LL | let _ = if matches!(true, true) { | _____________^ @@ -28,7 +28,7 @@ LL | | }; = help: consider using `bool::then` like: `matches!(true, true).then(|| { /* snippet */ matches!(true, false) })` error: this could be simplified with `bool::then_some` - --> $DIR/if_then_some_else_none.rs:23:28 + --> $DIR/if_then_some_else_none.rs:22:28 | LL | let _ = x.and_then(|o| if o < 32 { Some(o) } else { None }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -36,7 +36,7 @@ LL | let _ = x.and_then(|o| if o < 32 { Some(o) } else { None }); = help: consider using `bool::then_some` like: `(o < 32).then_some(o)` error: this could be simplified with `bool::then_some` - --> $DIR/if_then_some_else_none.rs:27:13 + --> $DIR/if_then_some_else_none.rs:26:13 | LL | let _ = if !x { Some(0) } else { None }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -44,7 +44,7 @@ LL | let _ = if !x { Some(0) } else { None }; = help: consider using `bool::then_some` like: `(!x).then_some(0)` error: this could be simplified with `bool::then` - --> $DIR/if_then_some_else_none.rs:82:13 + --> $DIR/if_then_some_else_none.rs:81:13 | LL | let _ = if foo() { | _____________^ diff --git a/src/tools/clippy/tests/ui/macro_use_imports.stderr b/src/tools/clippy/tests/ui/macro_use_imports.stderr index bf7b6edd0e3..61843124ccd 100644 --- a/src/tools/clippy/tests/ui/macro_use_imports.stderr +++ b/src/tools/clippy/tests/ui/macro_use_imports.stderr @@ -1,8 +1,8 @@ error: `macro_use` attributes are no longer needed in the Rust 2018 edition - --> $DIR/macro_use_imports.rs:23:5 + --> $DIR/macro_use_imports.rs:25:5 | LL | #[macro_use] - | ^^^^^^^^^^^^ help: remove the attribute and import the macro directly, try: `use mac::{inner::foofoo, inner::try_err};` + | ^^^^^^^^^^^^ help: remove the attribute and import the macro directly, try: `use mac::inner::nested::string_add;` | = note: `-D clippy::macro-use-imports` implied by `-D warnings` @@ -13,10 +13,10 @@ LL | #[macro_use] | ^^^^^^^^^^^^ help: remove the attribute and import the macro directly, try: `use mini_mac::ClippyMiniMacroTest;` error: `macro_use` attributes are no longer needed in the Rust 2018 edition - --> $DIR/macro_use_imports.rs:25:5 + --> $DIR/macro_use_imports.rs:23:5 | LL | #[macro_use] - | ^^^^^^^^^^^^ help: remove the attribute and import the macro directly, try: `use mac::inner::nested::string_add;` + | ^^^^^^^^^^^^ help: remove the attribute and import the macro directly, try: `use mac::{inner::foofoo, inner::try_err};` error: `macro_use` attributes are no longer needed in the Rust 2018 edition --> $DIR/macro_use_imports.rs:19:5 diff --git a/src/tools/clippy/tests/ui/manual_clamp.rs b/src/tools/clippy/tests/ui/manual_clamp.rs index 331fd29b74e..f7902e6fd53 100644 --- a/src/tools/clippy/tests/ui/manual_clamp.rs +++ b/src/tools/clippy/tests/ui/manual_clamp.rs @@ -1,4 +1,3 @@ -#![feature(custom_inner_attributes)] #![warn(clippy::manual_clamp)] #![allow( unused, @@ -304,9 +303,8 @@ fn cmp_min_max(input: i32) -> i32 { input * 3 } +#[clippy::msrv = "1.49"] fn msrv_1_49() { - #![clippy::msrv = "1.49"] - let (input, min, max) = (0, -1, 2); let _ = if input < min { min @@ -317,9 +315,8 @@ fn msrv_1_49() { }; } +#[clippy::msrv = "1.50"] fn msrv_1_50() { - #![clippy::msrv = "1.50"] - let (input, min, max) = (0, -1, 2); let _ = if input < min { min diff --git a/src/tools/clippy/tests/ui/manual_clamp.stderr b/src/tools/clippy/tests/ui/manual_clamp.stderr index 70abe28091c..988ad1527e8 100644 --- a/src/tools/clippy/tests/ui/manual_clamp.stderr +++ b/src/tools/clippy/tests/ui/manual_clamp.stderr @@ -1,5 +1,5 @@ error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:77:5 + --> $DIR/manual_clamp.rs:76:5 | LL | / if x9 < min { LL | | x9 = min; @@ -13,7 +13,7 @@ LL | | } = note: `-D clippy::manual-clamp` implied by `-D warnings` error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:92:5 + --> $DIR/manual_clamp.rs:91:5 | LL | / if x11 > max { LL | | x11 = max; @@ -26,7 +26,7 @@ LL | | } = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:100:5 + --> $DIR/manual_clamp.rs:99:5 | LL | / if min > x12 { LL | | x12 = min; @@ -39,7 +39,7 @@ LL | | } = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:108:5 + --> $DIR/manual_clamp.rs:107:5 | LL | / if max < x13 { LL | | x13 = max; @@ -52,7 +52,7 @@ LL | | } = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:162:5 + --> $DIR/manual_clamp.rs:161:5 | LL | / if max < x33 { LL | | x33 = max; @@ -65,7 +65,7 @@ LL | | } = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:22:14 + --> $DIR/manual_clamp.rs:21:14 | LL | let x0 = if max < input { | ______________^ @@ -80,7 +80,7 @@ LL | | }; = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:30:14 + --> $DIR/manual_clamp.rs:29:14 | LL | let x1 = if input > max { | ______________^ @@ -95,7 +95,7 @@ LL | | }; = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:38:14 + --> $DIR/manual_clamp.rs:37:14 | LL | let x2 = if input < min { | ______________^ @@ -110,7 +110,7 @@ LL | | }; = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:46:14 + --> $DIR/manual_clamp.rs:45:14 | LL | let x3 = if min > input { | ______________^ @@ -125,7 +125,7 @@ LL | | }; = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:54:14 + --> $DIR/manual_clamp.rs:53:14 | LL | let x4 = input.max(min).min(max); | ^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(min, max)` @@ -133,7 +133,7 @@ LL | let x4 = input.max(min).min(max); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:56:14 + --> $DIR/manual_clamp.rs:55:14 | LL | let x5 = input.min(max).max(min); | ^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(min, max)` @@ -141,7 +141,7 @@ LL | let x5 = input.min(max).max(min); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:58:14 + --> $DIR/manual_clamp.rs:57:14 | LL | let x6 = match input { | ______________^ @@ -154,7 +154,7 @@ LL | | }; = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:64:14 + --> $DIR/manual_clamp.rs:63:14 | LL | let x7 = match input { | ______________^ @@ -167,7 +167,7 @@ LL | | }; = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:70:14 + --> $DIR/manual_clamp.rs:69:14 | LL | let x8 = match input { | ______________^ @@ -180,7 +180,7 @@ LL | | }; = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:84:15 + --> $DIR/manual_clamp.rs:83:15 | LL | let x10 = match input { | _______________^ @@ -193,7 +193,7 @@ LL | | }; = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:115:15 + --> $DIR/manual_clamp.rs:114:15 | LL | let x14 = if input > CONST_MAX { | _______________^ @@ -208,7 +208,7 @@ LL | | }; = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:124:19 + --> $DIR/manual_clamp.rs:123:19 | LL | let x15 = if input > max { | ___________________^ @@ -224,7 +224,7 @@ LL | | }; = note: clamp returns NaN if the input is NaN error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:135:19 + --> $DIR/manual_clamp.rs:134:19 | LL | let x16 = cmp_max(cmp_min(input, CONST_MAX), CONST_MIN); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_MIN, CONST_MAX)` @@ -232,7 +232,7 @@ LL | let x16 = cmp_max(cmp_min(input, CONST_MAX), CONST_MIN); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:136:19 + --> $DIR/manual_clamp.rs:135:19 | LL | let x17 = cmp_min(cmp_max(input, CONST_MIN), CONST_MAX); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_MIN, CONST_MAX)` @@ -240,7 +240,7 @@ LL | let x17 = cmp_min(cmp_max(input, CONST_MIN), CONST_MAX); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:137:19 + --> $DIR/manual_clamp.rs:136:19 | LL | let x18 = cmp_max(CONST_MIN, cmp_min(input, CONST_MAX)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_MIN, CONST_MAX)` @@ -248,7 +248,7 @@ LL | let x18 = cmp_max(CONST_MIN, cmp_min(input, CONST_MAX)); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:138:19 + --> $DIR/manual_clamp.rs:137:19 | LL | let x19 = cmp_min(CONST_MAX, cmp_max(input, CONST_MIN)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_MIN, CONST_MAX)` @@ -256,7 +256,7 @@ LL | let x19 = cmp_min(CONST_MAX, cmp_max(input, CONST_MIN)); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:139:19 + --> $DIR/manual_clamp.rs:138:19 | LL | let x20 = cmp_max(cmp_min(CONST_MAX, input), CONST_MIN); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_MIN, CONST_MAX)` @@ -264,7 +264,7 @@ LL | let x20 = cmp_max(cmp_min(CONST_MAX, input), CONST_MIN); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:140:19 + --> $DIR/manual_clamp.rs:139:19 | LL | let x21 = cmp_min(cmp_max(CONST_MIN, input), CONST_MAX); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_MIN, CONST_MAX)` @@ -272,7 +272,7 @@ LL | let x21 = cmp_min(cmp_max(CONST_MIN, input), CONST_MAX); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:141:19 + --> $DIR/manual_clamp.rs:140:19 | LL | let x22 = cmp_max(CONST_MIN, cmp_min(CONST_MAX, input)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_MIN, CONST_MAX)` @@ -280,7 +280,7 @@ LL | let x22 = cmp_max(CONST_MIN, cmp_min(CONST_MAX, input)); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:142:19 + --> $DIR/manual_clamp.rs:141:19 | LL | let x23 = cmp_min(CONST_MAX, cmp_max(CONST_MIN, input)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_MIN, CONST_MAX)` @@ -288,7 +288,7 @@ LL | let x23 = cmp_min(CONST_MAX, cmp_max(CONST_MIN, input)); = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:144:19 + --> $DIR/manual_clamp.rs:143:19 | LL | let x24 = f64::max(f64::min(input, CONST_F64_MAX), CONST_F64_MIN); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_F64_MIN, CONST_F64_MAX)` @@ -297,7 +297,7 @@ LL | let x24 = f64::max(f64::min(input, CONST_F64_MAX), CONST_F64_MIN); = note: clamp returns NaN if the input is NaN error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:145:19 + --> $DIR/manual_clamp.rs:144:19 | LL | let x25 = f64::min(f64::max(input, CONST_F64_MIN), CONST_F64_MAX); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_F64_MIN, CONST_F64_MAX)` @@ -306,7 +306,7 @@ LL | let x25 = f64::min(f64::max(input, CONST_F64_MIN), CONST_F64_MAX); = note: clamp returns NaN if the input is NaN error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:146:19 + --> $DIR/manual_clamp.rs:145:19 | LL | let x26 = f64::max(CONST_F64_MIN, f64::min(input, CONST_F64_MAX)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_F64_MIN, CONST_F64_MAX)` @@ -315,7 +315,7 @@ LL | let x26 = f64::max(CONST_F64_MIN, f64::min(input, CONST_F64_MAX)); = note: clamp returns NaN if the input is NaN error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:147:19 + --> $DIR/manual_clamp.rs:146:19 | LL | let x27 = f64::min(CONST_F64_MAX, f64::max(input, CONST_F64_MIN)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_F64_MIN, CONST_F64_MAX)` @@ -324,7 +324,7 @@ LL | let x27 = f64::min(CONST_F64_MAX, f64::max(input, CONST_F64_MIN)); = note: clamp returns NaN if the input is NaN error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:148:19 + --> $DIR/manual_clamp.rs:147:19 | LL | let x28 = f64::max(f64::min(CONST_F64_MAX, input), CONST_F64_MIN); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_F64_MIN, CONST_F64_MAX)` @@ -333,7 +333,7 @@ LL | let x28 = f64::max(f64::min(CONST_F64_MAX, input), CONST_F64_MIN); = note: clamp returns NaN if the input is NaN error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:149:19 + --> $DIR/manual_clamp.rs:148:19 | LL | let x29 = f64::min(f64::max(CONST_F64_MIN, input), CONST_F64_MAX); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_F64_MIN, CONST_F64_MAX)` @@ -342,7 +342,7 @@ LL | let x29 = f64::min(f64::max(CONST_F64_MIN, input), CONST_F64_MAX); = note: clamp returns NaN if the input is NaN error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:150:19 + --> $DIR/manual_clamp.rs:149:19 | LL | let x30 = f64::max(CONST_F64_MIN, f64::min(CONST_F64_MAX, input)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_F64_MIN, CONST_F64_MAX)` @@ -351,7 +351,7 @@ LL | let x30 = f64::max(CONST_F64_MIN, f64::min(CONST_F64_MAX, input)); = note: clamp returns NaN if the input is NaN error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:151:19 + --> $DIR/manual_clamp.rs:150:19 | LL | let x31 = f64::min(CONST_F64_MAX, f64::max(CONST_F64_MIN, input)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with clamp: `input.clamp(CONST_F64_MIN, CONST_F64_MAX)` @@ -360,7 +360,7 @@ LL | let x31 = f64::min(CONST_F64_MAX, f64::max(CONST_F64_MIN, input)); = note: clamp returns NaN if the input is NaN error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:154:5 + --> $DIR/manual_clamp.rs:153:5 | LL | / if x32 < min { LL | | x32 = min; @@ -372,7 +372,7 @@ LL | | } = note: clamp will panic if max < min error: clamp-like pattern without using clamp function - --> $DIR/manual_clamp.rs:324:13 + --> $DIR/manual_clamp.rs:321:13 | LL | let _ = if input < min { | _____________^ diff --git a/src/tools/clippy/tests/ui/manual_is_ascii_check.fixed b/src/tools/clippy/tests/ui/manual_is_ascii_check.fixed index 765bb785994..231ba83b142 100644 --- a/src/tools/clippy/tests/ui/manual_is_ascii_check.fixed +++ b/src/tools/clippy/tests/ui/manual_is_ascii_check.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused, dead_code)] #![warn(clippy::manual_is_ascii_check)] @@ -18,28 +17,26 @@ fn main() { assert!(matches!('x', 'A'..='Z' | 'a'..='z' | '_')); } +#[clippy::msrv = "1.23"] fn msrv_1_23() { - #![clippy::msrv = "1.23"] - assert!(matches!(b'1', b'0'..=b'9')); assert!(matches!('X', 'A'..='Z')); assert!(matches!('x', 'A'..='Z' | 'a'..='z')); } +#[clippy::msrv = "1.24"] fn msrv_1_24() { - #![clippy::msrv = "1.24"] - assert!(b'1'.is_ascii_digit()); assert!('X'.is_ascii_uppercase()); assert!('x'.is_ascii_alphabetic()); } +#[clippy::msrv = "1.46"] fn msrv_1_46() { - #![clippy::msrv = "1.46"] const FOO: bool = matches!('x', '0'..='9'); } +#[clippy::msrv = "1.47"] fn msrv_1_47() { - #![clippy::msrv = "1.47"] const FOO: bool = 'x'.is_ascii_digit(); } diff --git a/src/tools/clippy/tests/ui/manual_is_ascii_check.rs b/src/tools/clippy/tests/ui/manual_is_ascii_check.rs index be133161041..39ee6151c56 100644 --- a/src/tools/clippy/tests/ui/manual_is_ascii_check.rs +++ b/src/tools/clippy/tests/ui/manual_is_ascii_check.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused, dead_code)] #![warn(clippy::manual_is_ascii_check)] @@ -18,28 +17,26 @@ fn main() { assert!(matches!('x', 'A'..='Z' | 'a'..='z' | '_')); } +#[clippy::msrv = "1.23"] fn msrv_1_23() { - #![clippy::msrv = "1.23"] - assert!(matches!(b'1', b'0'..=b'9')); assert!(matches!('X', 'A'..='Z')); assert!(matches!('x', 'A'..='Z' | 'a'..='z')); } +#[clippy::msrv = "1.24"] fn msrv_1_24() { - #![clippy::msrv = "1.24"] - assert!(matches!(b'1', b'0'..=b'9')); assert!(matches!('X', 'A'..='Z')); assert!(matches!('x', 'A'..='Z' | 'a'..='z')); } +#[clippy::msrv = "1.46"] fn msrv_1_46() { - #![clippy::msrv = "1.46"] const FOO: bool = matches!('x', '0'..='9'); } +#[clippy::msrv = "1.47"] fn msrv_1_47() { - #![clippy::msrv = "1.47"] const FOO: bool = matches!('x', '0'..='9'); } diff --git a/src/tools/clippy/tests/ui/manual_is_ascii_check.stderr b/src/tools/clippy/tests/ui/manual_is_ascii_check.stderr index c0a9d4db1a1..397cbe05c82 100644 --- a/src/tools/clippy/tests/ui/manual_is_ascii_check.stderr +++ b/src/tools/clippy/tests/ui/manual_is_ascii_check.stderr @@ -1,5 +1,5 @@ error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:8:13 + --> $DIR/manual_is_ascii_check.rs:7:13 | LL | assert!(matches!('x', 'a'..='z')); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'x'.is_ascii_lowercase()` @@ -7,61 +7,61 @@ LL | assert!(matches!('x', 'a'..='z')); = note: `-D clippy::manual-is-ascii-check` implied by `-D warnings` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:9:13 + --> $DIR/manual_is_ascii_check.rs:8:13 | LL | assert!(matches!('X', 'A'..='Z')); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'X'.is_ascii_uppercase()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:10:13 + --> $DIR/manual_is_ascii_check.rs:9:13 | LL | assert!(matches!(b'x', b'a'..=b'z')); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `b'x'.is_ascii_lowercase()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:11:13 + --> $DIR/manual_is_ascii_check.rs:10:13 | LL | assert!(matches!(b'X', b'A'..=b'Z')); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `b'X'.is_ascii_uppercase()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:14:13 + --> $DIR/manual_is_ascii_check.rs:13:13 | LL | assert!(matches!(num, '0'..='9')); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `num.is_ascii_digit()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:15:13 + --> $DIR/manual_is_ascii_check.rs:14:13 | LL | assert!(matches!(b'1', b'0'..=b'9')); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `b'1'.is_ascii_digit()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:16:13 + --> $DIR/manual_is_ascii_check.rs:15:13 | LL | assert!(matches!('x', 'A'..='Z' | 'a'..='z')); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'x'.is_ascii_alphabetic()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:32:13 + --> $DIR/manual_is_ascii_check.rs:29:13 | LL | assert!(matches!(b'1', b'0'..=b'9')); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `b'1'.is_ascii_digit()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:33:13 + --> $DIR/manual_is_ascii_check.rs:30:13 | LL | assert!(matches!('X', 'A'..='Z')); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'X'.is_ascii_uppercase()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:34:13 + --> $DIR/manual_is_ascii_check.rs:31:13 | LL | assert!(matches!('x', 'A'..='Z' | 'a'..='z')); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'x'.is_ascii_alphabetic()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:44:23 + --> $DIR/manual_is_ascii_check.rs:41:23 | LL | const FOO: bool = matches!('x', '0'..='9'); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'x'.is_ascii_digit()` diff --git a/src/tools/clippy/tests/ui/manual_let_else.rs b/src/tools/clippy/tests/ui/manual_let_else.rs index 2ef40e5911a..48a162c1360 100644 --- a/src/tools/clippy/tests/ui/manual_let_else.rs +++ b/src/tools/clippy/tests/ui/manual_let_else.rs @@ -234,4 +234,18 @@ fn not_fire() { // If a type annotation is present, don't lint as // expressing the type might be too hard let v: () = if let Some(v_some) = g() { v_some } else { panic!() }; + + // Issue 9940 + // Suggestion should not expand macros + macro_rules! macro_call { + () => { + return () + }; + } + + let ff = Some(1); + let _ = match ff { + Some(value) => value, + _ => macro_call!(), + }; } diff --git a/src/tools/clippy/tests/ui/manual_let_else.stderr b/src/tools/clippy/tests/ui/manual_let_else.stderr index 453b68b8bd0..52aac6bc673 100644 --- a/src/tools/clippy/tests/ui/manual_let_else.stderr +++ b/src/tools/clippy/tests/ui/manual_let_else.stderr @@ -259,5 +259,14 @@ LL | create_binding_if_some!(w, g()); | = note: this error originates in the macro `create_binding_if_some` (in Nightly builds, run with -Z macro-backtrace for more info) -error: aborting due to 17 previous errors +error: this could be rewritten as `let...else` + --> $DIR/manual_let_else.rs:247:5 + | +LL | / let _ = match ff { +LL | | Some(value) => value, +LL | | _ => macro_call!(), +LL | | }; + | |______^ help: consider writing: `let Some(value) = ff else { macro_call!() };` + +error: aborting due to 18 previous errors diff --git a/src/tools/clippy/tests/ui/manual_rem_euclid.fixed b/src/tools/clippy/tests/ui/manual_rem_euclid.fixed index b942fbfe930..4cdc0546a74 100644 --- a/src/tools/clippy/tests/ui/manual_rem_euclid.fixed +++ b/src/tools/clippy/tests/ui/manual_rem_euclid.fixed @@ -1,7 +1,6 @@ // run-rustfix // aux-build:macro_rules.rs -#![feature(custom_inner_attributes)] #![warn(clippy::manual_rem_euclid)] #[macro_use] @@ -55,31 +54,27 @@ pub const fn const_rem_euclid_4(num: i32) -> i32 { num.rem_euclid(4) } +#[clippy::msrv = "1.37"] pub fn msrv_1_37() { - #![clippy::msrv = "1.37"] - let x: i32 = 10; let _: i32 = ((x % 4) + 4) % 4; } +#[clippy::msrv = "1.38"] pub fn msrv_1_38() { - #![clippy::msrv = "1.38"] - let x: i32 = 10; let _: i32 = x.rem_euclid(4); } // For const fns: +#[clippy::msrv = "1.51"] pub const fn msrv_1_51() { - #![clippy::msrv = "1.51"] - let x: i32 = 10; let _: i32 = ((x % 4) + 4) % 4; } +#[clippy::msrv = "1.52"] pub const fn msrv_1_52() { - #![clippy::msrv = "1.52"] - let x: i32 = 10; let _: i32 = x.rem_euclid(4); } diff --git a/src/tools/clippy/tests/ui/manual_rem_euclid.rs b/src/tools/clippy/tests/ui/manual_rem_euclid.rs index 7462d532169..58a9e20f38b 100644 --- a/src/tools/clippy/tests/ui/manual_rem_euclid.rs +++ b/src/tools/clippy/tests/ui/manual_rem_euclid.rs @@ -1,7 +1,6 @@ // run-rustfix // aux-build:macro_rules.rs -#![feature(custom_inner_attributes)] #![warn(clippy::manual_rem_euclid)] #[macro_use] @@ -55,31 +54,27 @@ pub const fn const_rem_euclid_4(num: i32) -> i32 { ((num % 4) + 4) % 4 } +#[clippy::msrv = "1.37"] pub fn msrv_1_37() { - #![clippy::msrv = "1.37"] - let x: i32 = 10; let _: i32 = ((x % 4) + 4) % 4; } +#[clippy::msrv = "1.38"] pub fn msrv_1_38() { - #![clippy::msrv = "1.38"] - let x: i32 = 10; let _: i32 = ((x % 4) + 4) % 4; } // For const fns: +#[clippy::msrv = "1.51"] pub const fn msrv_1_51() { - #![clippy::msrv = "1.51"] - let x: i32 = 10; let _: i32 = ((x % 4) + 4) % 4; } +#[clippy::msrv = "1.52"] pub const fn msrv_1_52() { - #![clippy::msrv = "1.52"] - let x: i32 = 10; let _: i32 = ((x % 4) + 4) % 4; } diff --git a/src/tools/clippy/tests/ui/manual_rem_euclid.stderr b/src/tools/clippy/tests/ui/manual_rem_euclid.stderr index d51bac03b56..e3122a588b6 100644 --- a/src/tools/clippy/tests/ui/manual_rem_euclid.stderr +++ b/src/tools/clippy/tests/ui/manual_rem_euclid.stderr @@ -1,5 +1,5 @@ error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:20:18 + --> $DIR/manual_rem_euclid.rs:19:18 | LL | let _: i32 = ((value % 4) + 4) % 4; | ^^^^^^^^^^^^^^^^^^^^^ help: consider using: `value.rem_euclid(4)` @@ -7,31 +7,31 @@ LL | let _: i32 = ((value % 4) + 4) % 4; = note: `-D clippy::manual-rem-euclid` implied by `-D warnings` error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:21:18 + --> $DIR/manual_rem_euclid.rs:20:18 | LL | let _: i32 = (4 + (value % 4)) % 4; | ^^^^^^^^^^^^^^^^^^^^^ help: consider using: `value.rem_euclid(4)` error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:22:18 + --> $DIR/manual_rem_euclid.rs:21:18 | LL | let _: i32 = (value % 4 + 4) % 4; | ^^^^^^^^^^^^^^^^^^^ help: consider using: `value.rem_euclid(4)` error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:23:18 + --> $DIR/manual_rem_euclid.rs:22:18 | LL | let _: i32 = (4 + value % 4) % 4; | ^^^^^^^^^^^^^^^^^^^ help: consider using: `value.rem_euclid(4)` error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:24:22 + --> $DIR/manual_rem_euclid.rs:23:22 | LL | let _: i32 = 1 + (4 + value % 4) % 4; | ^^^^^^^^^^^^^^^^^^^ help: consider using: `value.rem_euclid(4)` error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:13:22 + --> $DIR/manual_rem_euclid.rs:12:22 | LL | let _: i32 = ((value % 4) + 4) % 4; | ^^^^^^^^^^^^^^^^^^^^^ help: consider using: `value.rem_euclid(4)` @@ -42,25 +42,25 @@ LL | internal_rem_euclid!(); = note: this error originates in the macro `internal_rem_euclid` (in Nightly builds, run with -Z macro-backtrace for more info) error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:50:5 + --> $DIR/manual_rem_euclid.rs:49:5 | LL | ((num % 4) + 4) % 4 | ^^^^^^^^^^^^^^^^^^^ help: consider using: `num.rem_euclid(4)` error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:55:5 + --> $DIR/manual_rem_euclid.rs:54:5 | LL | ((num % 4) + 4) % 4 | ^^^^^^^^^^^^^^^^^^^ help: consider using: `num.rem_euclid(4)` error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:69:18 + --> $DIR/manual_rem_euclid.rs:66:18 | LL | let _: i32 = ((x % 4) + 4) % 4; | ^^^^^^^^^^^^^^^^^ help: consider using: `x.rem_euclid(4)` error: manual `rem_euclid` implementation - --> $DIR/manual_rem_euclid.rs:84:18 + --> $DIR/manual_rem_euclid.rs:79:18 | LL | let _: i32 = ((x % 4) + 4) % 4; | ^^^^^^^^^^^^^^^^^ help: consider using: `x.rem_euclid(4)` diff --git a/src/tools/clippy/tests/ui/manual_retain.fixed b/src/tools/clippy/tests/ui/manual_retain.fixed index fba503a2066..e5ae3cf3e50 100644 --- a/src/tools/clippy/tests/ui/manual_retain.fixed +++ b/src/tools/clippy/tests/ui/manual_retain.fixed @@ -1,5 +1,4 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::manual_retain)] #![allow(unused)] use std::collections::BTreeMap; @@ -216,8 +215,8 @@ fn vec_deque_retain() { bar = foobar.into_iter().filter(|x| x % 2 == 0).collect(); } +#[clippy::msrv = "1.52"] fn _msrv_153() { - #![clippy::msrv = "1.52"] let mut btree_map: BTreeMap<i8, i8> = (0..8).map(|x| (x, x * 10)).collect(); btree_map = btree_map.into_iter().filter(|(k, _)| k % 2 == 0).collect(); @@ -225,14 +224,14 @@ fn _msrv_153() { btree_set = btree_set.iter().filter(|&x| x % 2 == 0).copied().collect(); } +#[clippy::msrv = "1.25"] fn _msrv_126() { - #![clippy::msrv = "1.25"] let mut s = String::from("foobar"); s = s.chars().filter(|&c| c != 'o').to_owned().collect(); } +#[clippy::msrv = "1.17"] fn _msrv_118() { - #![clippy::msrv = "1.17"] let mut hash_set = HashSet::from([1, 2, 3, 4, 5, 6]); hash_set = hash_set.into_iter().filter(|x| x % 2 == 0).collect(); let mut hash_map: HashMap<i8, i8> = (0..8).map(|x| (x, x * 10)).collect(); diff --git a/src/tools/clippy/tests/ui/manual_retain.rs b/src/tools/clippy/tests/ui/manual_retain.rs index 81a849fe768..1021f15edd1 100644 --- a/src/tools/clippy/tests/ui/manual_retain.rs +++ b/src/tools/clippy/tests/ui/manual_retain.rs @@ -1,5 +1,4 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::manual_retain)] #![allow(unused)] use std::collections::BTreeMap; @@ -222,8 +221,8 @@ fn vec_deque_retain() { bar = foobar.into_iter().filter(|x| x % 2 == 0).collect(); } +#[clippy::msrv = "1.52"] fn _msrv_153() { - #![clippy::msrv = "1.52"] let mut btree_map: BTreeMap<i8, i8> = (0..8).map(|x| (x, x * 10)).collect(); btree_map = btree_map.into_iter().filter(|(k, _)| k % 2 == 0).collect(); @@ -231,14 +230,14 @@ fn _msrv_153() { btree_set = btree_set.iter().filter(|&x| x % 2 == 0).copied().collect(); } +#[clippy::msrv = "1.25"] fn _msrv_126() { - #![clippy::msrv = "1.25"] let mut s = String::from("foobar"); s = s.chars().filter(|&c| c != 'o').to_owned().collect(); } +#[clippy::msrv = "1.17"] fn _msrv_118() { - #![clippy::msrv = "1.17"] let mut hash_set = HashSet::from([1, 2, 3, 4, 5, 6]); hash_set = hash_set.into_iter().filter(|x| x % 2 == 0).collect(); let mut hash_map: HashMap<i8, i8> = (0..8).map(|x| (x, x * 10)).collect(); diff --git a/src/tools/clippy/tests/ui/manual_retain.stderr b/src/tools/clippy/tests/ui/manual_retain.stderr index ec635919b48..89316ce1d99 100644 --- a/src/tools/clippy/tests/ui/manual_retain.stderr +++ b/src/tools/clippy/tests/ui/manual_retain.stderr @@ -1,5 +1,5 @@ error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:52:5 + --> $DIR/manual_retain.rs:51:5 | LL | btree_map = btree_map.into_iter().filter(|(k, _)| k % 2 == 0).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `btree_map.retain(|k, _| k % 2 == 0)` @@ -7,13 +7,13 @@ LL | btree_map = btree_map.into_iter().filter(|(k, _)| k % 2 == 0).collect() = note: `-D clippy::manual-retain` implied by `-D warnings` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:53:5 + --> $DIR/manual_retain.rs:52:5 | LL | btree_map = btree_map.into_iter().filter(|(_, v)| v % 2 == 0).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `btree_map.retain(|_, &mut v| v % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:54:5 + --> $DIR/manual_retain.rs:53:5 | LL | / btree_map = btree_map LL | | .into_iter() @@ -22,37 +22,37 @@ LL | | .collect(); | |__________________^ help: consider calling `.retain()` instead: `btree_map.retain(|k, &mut v| (k % 2 == 0) && (v % 2 == 0))` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:76:5 + --> $DIR/manual_retain.rs:75:5 | LL | btree_set = btree_set.iter().filter(|&x| x % 2 == 0).copied().collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `btree_set.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:77:5 + --> $DIR/manual_retain.rs:76:5 | LL | btree_set = btree_set.iter().filter(|&x| x % 2 == 0).cloned().collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `btree_set.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:78:5 + --> $DIR/manual_retain.rs:77:5 | LL | btree_set = btree_set.into_iter().filter(|x| x % 2 == 0).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `btree_set.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:108:5 + --> $DIR/manual_retain.rs:107:5 | LL | hash_map = hash_map.into_iter().filter(|(k, _)| k % 2 == 0).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `hash_map.retain(|k, _| k % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:109:5 + --> $DIR/manual_retain.rs:108:5 | LL | hash_map = hash_map.into_iter().filter(|(_, v)| v % 2 == 0).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `hash_map.retain(|_, &mut v| v % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:110:5 + --> $DIR/manual_retain.rs:109:5 | LL | / hash_map = hash_map LL | | .into_iter() @@ -61,61 +61,61 @@ LL | | .collect(); | |__________________^ help: consider calling `.retain()` instead: `hash_map.retain(|k, &mut v| (k % 2 == 0) && (v % 2 == 0))` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:131:5 + --> $DIR/manual_retain.rs:130:5 | LL | hash_set = hash_set.into_iter().filter(|x| x % 2 == 0).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `hash_set.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:132:5 + --> $DIR/manual_retain.rs:131:5 | LL | hash_set = hash_set.iter().filter(|&x| x % 2 == 0).copied().collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `hash_set.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:133:5 + --> $DIR/manual_retain.rs:132:5 | LL | hash_set = hash_set.iter().filter(|&x| x % 2 == 0).cloned().collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `hash_set.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:162:5 + --> $DIR/manual_retain.rs:161:5 | LL | s = s.chars().filter(|&c| c != 'o').to_owned().collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `s.retain(|c| c != 'o')` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:174:5 + --> $DIR/manual_retain.rs:173:5 | LL | vec = vec.iter().filter(|&x| x % 2 == 0).copied().collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `vec.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:175:5 + --> $DIR/manual_retain.rs:174:5 | LL | vec = vec.iter().filter(|&x| x % 2 == 0).cloned().collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `vec.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:176:5 + --> $DIR/manual_retain.rs:175:5 | LL | vec = vec.into_iter().filter(|x| x % 2 == 0).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `vec.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:198:5 + --> $DIR/manual_retain.rs:197:5 | LL | vec_deque = vec_deque.iter().filter(|&x| x % 2 == 0).copied().collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `vec_deque.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:199:5 + --> $DIR/manual_retain.rs:198:5 | LL | vec_deque = vec_deque.iter().filter(|&x| x % 2 == 0).cloned().collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `vec_deque.retain(|x| x % 2 == 0)` error: this expression can be written more simply using `.retain()` - --> $DIR/manual_retain.rs:200:5 + --> $DIR/manual_retain.rs:199:5 | LL | vec_deque = vec_deque.into_iter().filter(|x| x % 2 == 0).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `vec_deque.retain(|x| x % 2 == 0)` diff --git a/src/tools/clippy/tests/ui/manual_split_once.fixed b/src/tools/clippy/tests/ui/manual_split_once.fixed index c7ca770434a..50b02019cc2 100644 --- a/src/tools/clippy/tests/ui/manual_split_once.fixed +++ b/src/tools/clippy/tests/ui/manual_split_once.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::manual_split_once)] #![allow(unused, clippy::iter_skip_next, clippy::iter_nth_zero)] @@ -127,8 +126,8 @@ fn indirect() -> Option<()> { None } +#[clippy::msrv = "1.51"] fn _msrv_1_51() { - #![clippy::msrv = "1.51"] // `str::split_once` was stabilized in 1.52. Do not lint this let _ = "key=value".splitn(2, '=').nth(1).unwrap(); @@ -137,8 +136,8 @@ fn _msrv_1_51() { let b = iter.next().unwrap(); } +#[clippy::msrv = "1.52"] fn _msrv_1_52() { - #![clippy::msrv = "1.52"] let _ = "key=value".split_once('=').unwrap().1; let (a, b) = "a.b.c".split_once('.').unwrap(); diff --git a/src/tools/clippy/tests/ui/manual_split_once.rs b/src/tools/clippy/tests/ui/manual_split_once.rs index ee2848a251e..e1e8b71a9de 100644 --- a/src/tools/clippy/tests/ui/manual_split_once.rs +++ b/src/tools/clippy/tests/ui/manual_split_once.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::manual_split_once)] #![allow(unused, clippy::iter_skip_next, clippy::iter_nth_zero)] @@ -127,8 +126,8 @@ fn indirect() -> Option<()> { None } +#[clippy::msrv = "1.51"] fn _msrv_1_51() { - #![clippy::msrv = "1.51"] // `str::split_once` was stabilized in 1.52. Do not lint this let _ = "key=value".splitn(2, '=').nth(1).unwrap(); @@ -137,8 +136,8 @@ fn _msrv_1_51() { let b = iter.next().unwrap(); } +#[clippy::msrv = "1.52"] fn _msrv_1_52() { - #![clippy::msrv = "1.52"] let _ = "key=value".splitn(2, '=').nth(1).unwrap(); let mut iter = "a.b.c".splitn(2, '.'); diff --git a/src/tools/clippy/tests/ui/manual_split_once.stderr b/src/tools/clippy/tests/ui/manual_split_once.stderr index 2696694680a..78da5a16cc5 100644 --- a/src/tools/clippy/tests/ui/manual_split_once.stderr +++ b/src/tools/clippy/tests/ui/manual_split_once.stderr @@ -1,5 +1,5 @@ error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:14:13 + --> $DIR/manual_split_once.rs:13:13 | LL | let _ = "key=value".splitn(2, '=').nth(1).unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=').unwrap().1` @@ -7,79 +7,79 @@ LL | let _ = "key=value".splitn(2, '=').nth(1).unwrap(); = note: `-D clippy::manual-split-once` implied by `-D warnings` error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:15:13 + --> $DIR/manual_split_once.rs:14:13 | LL | let _ = "key=value".splitn(2, '=').skip(1).next().unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=').unwrap().1` error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:16:18 + --> $DIR/manual_split_once.rs:15:18 | LL | let (_, _) = "key=value".splitn(2, '=').next_tuple().unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=')` error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:19:13 + --> $DIR/manual_split_once.rs:18:13 | LL | let _ = s.splitn(2, '=').nth(1).unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once('=').unwrap().1` error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:22:13 + --> $DIR/manual_split_once.rs:21:13 | LL | let _ = s.splitn(2, '=').nth(1).unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once('=').unwrap().1` error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:25:13 + --> $DIR/manual_split_once.rs:24:13 | LL | let _ = s.splitn(2, '=').skip(1).next().unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once('=').unwrap().1` error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:28:17 + --> $DIR/manual_split_once.rs:27:17 | LL | let _ = s.splitn(2, '=').nth(1)?; | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once('=')?.1` error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:29:17 + --> $DIR/manual_split_once.rs:28:17 | LL | let _ = s.splitn(2, '=').skip(1).next()?; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once('=')?.1` error: manual implementation of `rsplit_once` - --> $DIR/manual_split_once.rs:30:17 + --> $DIR/manual_split_once.rs:29:17 | LL | let _ = s.rsplitn(2, '=').nth(1)?; | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.rsplit_once('=')?.0` error: manual implementation of `rsplit_once` - --> $DIR/manual_split_once.rs:31:17 + --> $DIR/manual_split_once.rs:30:17 | LL | let _ = s.rsplitn(2, '=').skip(1).next()?; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.rsplit_once('=')?.0` error: manual implementation of `rsplit_once` - --> $DIR/manual_split_once.rs:39:13 + --> $DIR/manual_split_once.rs:38:13 | LL | let _ = "key=value".rsplitn(2, '=').nth(1).unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".rsplit_once('=').unwrap().0` error: manual implementation of `rsplit_once` - --> $DIR/manual_split_once.rs:40:18 + --> $DIR/manual_split_once.rs:39:18 | LL | let (_, _) = "key=value".rsplitn(2, '=').next_tuple().unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".rsplit_once('=').map(|(x, y)| (y, x))` error: manual implementation of `rsplit_once` - --> $DIR/manual_split_once.rs:41:13 + --> $DIR/manual_split_once.rs:40:13 | LL | let _ = s.rsplitn(2, '=').nth(1); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.rsplit_once('=').map(|x| x.0)` error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:45:5 + --> $DIR/manual_split_once.rs:44:5 | LL | let mut iter = "a.b.c".splitn(2, '.'); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -104,7 +104,7 @@ LL + | error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:49:5 + --> $DIR/manual_split_once.rs:48:5 | LL | let mut iter = "a.b.c".splitn(2, '.'); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -129,7 +129,7 @@ LL + | error: manual implementation of `rsplit_once` - --> $DIR/manual_split_once.rs:53:5 + --> $DIR/manual_split_once.rs:52:5 | LL | let mut iter = "a.b.c".rsplitn(2, '.'); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -154,7 +154,7 @@ LL + | error: manual implementation of `rsplit_once` - --> $DIR/manual_split_once.rs:57:5 + --> $DIR/manual_split_once.rs:56:5 | LL | let mut iter = "a.b.c".rsplitn(2, '.'); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -179,13 +179,13 @@ LL + | error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:142:13 + --> $DIR/manual_split_once.rs:141:13 | LL | let _ = "key=value".splitn(2, '=').nth(1).unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=').unwrap().1` error: manual implementation of `split_once` - --> $DIR/manual_split_once.rs:144:5 + --> $DIR/manual_split_once.rs:143:5 | LL | let mut iter = "a.b.c".splitn(2, '.'); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/tools/clippy/tests/ui/manual_str_repeat.fixed b/src/tools/clippy/tests/ui/manual_str_repeat.fixed index 0704ba2f933..3d56f2a0ded 100644 --- a/src/tools/clippy/tests/ui/manual_str_repeat.fixed +++ b/src/tools/clippy/tests/ui/manual_str_repeat.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::manual_str_repeat)] use std::borrow::Cow; @@ -54,13 +53,13 @@ fn main() { let _: String = repeat(x).take(count).collect(); } +#[clippy::msrv = "1.15"] fn _msrv_1_15() { - #![clippy::msrv = "1.15"] // `str::repeat` was stabilized in 1.16. Do not lint this let _: String = std::iter::repeat("test").take(10).collect(); } +#[clippy::msrv = "1.16"] fn _msrv_1_16() { - #![clippy::msrv = "1.16"] let _: String = "test".repeat(10); } diff --git a/src/tools/clippy/tests/ui/manual_str_repeat.rs b/src/tools/clippy/tests/ui/manual_str_repeat.rs index f522be439aa..e8240a949db 100644 --- a/src/tools/clippy/tests/ui/manual_str_repeat.rs +++ b/src/tools/clippy/tests/ui/manual_str_repeat.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::manual_str_repeat)] use std::borrow::Cow; @@ -54,13 +53,13 @@ fn main() { let _: String = repeat(x).take(count).collect(); } +#[clippy::msrv = "1.15"] fn _msrv_1_15() { - #![clippy::msrv = "1.15"] // `str::repeat` was stabilized in 1.16. Do not lint this let _: String = std::iter::repeat("test").take(10).collect(); } +#[clippy::msrv = "1.16"] fn _msrv_1_16() { - #![clippy::msrv = "1.16"] let _: String = std::iter::repeat("test").take(10).collect(); } diff --git a/src/tools/clippy/tests/ui/manual_str_repeat.stderr b/src/tools/clippy/tests/ui/manual_str_repeat.stderr index c6511689716..bdfee7cab26 100644 --- a/src/tools/clippy/tests/ui/manual_str_repeat.stderr +++ b/src/tools/clippy/tests/ui/manual_str_repeat.stderr @@ -1,5 +1,5 @@ error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:10:21 + --> $DIR/manual_str_repeat.rs:9:21 | LL | let _: String = std::iter::repeat("test").take(10).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"test".repeat(10)` @@ -7,55 +7,55 @@ LL | let _: String = std::iter::repeat("test").take(10).collect(); = note: `-D clippy::manual-str-repeat` implied by `-D warnings` error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:11:21 + --> $DIR/manual_str_repeat.rs:10:21 | LL | let _: String = std::iter::repeat('x').take(10).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"x".repeat(10)` error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:12:21 + --> $DIR/manual_str_repeat.rs:11:21 | LL | let _: String = std::iter::repeat('/'').take(10).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"'".repeat(10)` error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:13:21 + --> $DIR/manual_str_repeat.rs:12:21 | LL | let _: String = std::iter::repeat('"').take(10).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"/"".repeat(10)` error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:17:13 + --> $DIR/manual_str_repeat.rs:16:13 | LL | let _ = repeat(x).take(count + 2).collect::<String>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `x.repeat(count + 2)` error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:26:21 + --> $DIR/manual_str_repeat.rs:25:21 | LL | let _: String = repeat(*x).take(count).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `(*x).repeat(count)` error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:35:21 + --> $DIR/manual_str_repeat.rs:34:21 | LL | let _: String = repeat(x).take(count).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `x.repeat(count)` error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:47:21 + --> $DIR/manual_str_repeat.rs:46:21 | LL | let _: String = repeat(Cow::Borrowed("test")).take(count).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `Cow::Borrowed("test").repeat(count)` error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:50:21 + --> $DIR/manual_str_repeat.rs:49:21 | LL | let _: String = repeat(x).take(count).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `x.repeat(count)` error: manual implementation of `str::repeat` using iterators - --> $DIR/manual_str_repeat.rs:65:21 + --> $DIR/manual_str_repeat.rs:64:21 | LL | let _: String = std::iter::repeat("test").take(10).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"test".repeat(10)` diff --git a/src/tools/clippy/tests/ui/manual_strip.rs b/src/tools/clippy/tests/ui/manual_strip.rs index 85009d78558..b0b1c262aee 100644 --- a/src/tools/clippy/tests/ui/manual_strip.rs +++ b/src/tools/clippy/tests/ui/manual_strip.rs @@ -1,4 +1,3 @@ -#![feature(custom_inner_attributes)] #![warn(clippy::manual_strip)] fn main() { @@ -66,18 +65,16 @@ fn main() { } } +#[clippy::msrv = "1.44"] fn msrv_1_44() { - #![clippy::msrv = "1.44"] - let s = "abc"; if s.starts_with('a') { s[1..].to_string(); } } +#[clippy::msrv = "1.45"] fn msrv_1_45() { - #![clippy::msrv = "1.45"] - let s = "abc"; if s.starts_with('a') { s[1..].to_string(); diff --git a/src/tools/clippy/tests/ui/manual_strip.stderr b/src/tools/clippy/tests/ui/manual_strip.stderr index ad2a362f3e7..f592e898fc9 100644 --- a/src/tools/clippy/tests/ui/manual_strip.stderr +++ b/src/tools/clippy/tests/ui/manual_strip.stderr @@ -1,11 +1,11 @@ error: stripping a prefix manually - --> $DIR/manual_strip.rs:8:24 + --> $DIR/manual_strip.rs:7:24 | LL | str::to_string(&s["ab".len()..]); | ^^^^^^^^^^^^^^^^ | note: the prefix was tested here - --> $DIR/manual_strip.rs:7:5 + --> $DIR/manual_strip.rs:6:5 | LL | if s.starts_with("ab") { | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -21,13 +21,13 @@ LL ~ <stripped>.to_string(); | error: stripping a suffix manually - --> $DIR/manual_strip.rs:16:24 + --> $DIR/manual_strip.rs:15:24 | LL | str::to_string(&s[..s.len() - "bc".len()]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: the suffix was tested here - --> $DIR/manual_strip.rs:15:5 + --> $DIR/manual_strip.rs:14:5 | LL | if s.ends_with("bc") { | ^^^^^^^^^^^^^^^^^^^^^ @@ -42,13 +42,13 @@ LL ~ <stripped>.to_string(); | error: stripping a prefix manually - --> $DIR/manual_strip.rs:25:24 + --> $DIR/manual_strip.rs:24:24 | LL | str::to_string(&s[1..]); | ^^^^^^^ | note: the prefix was tested here - --> $DIR/manual_strip.rs:24:5 + --> $DIR/manual_strip.rs:23:5 | LL | if s.starts_with('a') { | ^^^^^^^^^^^^^^^^^^^^^^ @@ -60,13 +60,13 @@ LL ~ <stripped>.to_string(); | error: stripping a prefix manually - --> $DIR/manual_strip.rs:32:24 + --> $DIR/manual_strip.rs:31:24 | LL | str::to_string(&s[prefix.len()..]); | ^^^^^^^^^^^^^^^^^^ | note: the prefix was tested here - --> $DIR/manual_strip.rs:31:5 + --> $DIR/manual_strip.rs:30:5 | LL | if s.starts_with(prefix) { | ^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -77,13 +77,13 @@ LL ~ str::to_string(<stripped>); | error: stripping a prefix manually - --> $DIR/manual_strip.rs:38:24 + --> $DIR/manual_strip.rs:37:24 | LL | str::to_string(&s[PREFIX.len()..]); | ^^^^^^^^^^^^^^^^^^ | note: the prefix was tested here - --> $DIR/manual_strip.rs:37:5 + --> $DIR/manual_strip.rs:36:5 | LL | if s.starts_with(PREFIX) { | ^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -95,13 +95,13 @@ LL ~ str::to_string(<stripped>); | error: stripping a prefix manually - --> $DIR/manual_strip.rs:45:24 + --> $DIR/manual_strip.rs:44:24 | LL | str::to_string(&TARGET[prefix.len()..]); | ^^^^^^^^^^^^^^^^^^^^^^^ | note: the prefix was tested here - --> $DIR/manual_strip.rs:44:5 + --> $DIR/manual_strip.rs:43:5 | LL | if TARGET.starts_with(prefix) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -112,13 +112,13 @@ LL ~ str::to_string(<stripped>); | error: stripping a prefix manually - --> $DIR/manual_strip.rs:51:9 + --> $DIR/manual_strip.rs:50:9 | LL | s1[2..].to_uppercase(); | ^^^^^^^ | note: the prefix was tested here - --> $DIR/manual_strip.rs:50:5 + --> $DIR/manual_strip.rs:49:5 | LL | if s1.starts_with("ab") { | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -129,13 +129,13 @@ LL ~ <stripped>.to_uppercase(); | error: stripping a prefix manually - --> $DIR/manual_strip.rs:83:9 + --> $DIR/manual_strip.rs:80:9 | LL | s[1..].to_string(); | ^^^^^^ | note: the prefix was tested here - --> $DIR/manual_strip.rs:82:5 + --> $DIR/manual_strip.rs:79:5 | LL | if s.starts_with('a') { | ^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/tools/clippy/tests/ui/map_unwrap_or.rs b/src/tools/clippy/tests/ui/map_unwrap_or.rs index 396b22a9abb..32631024ca5 100644 --- a/src/tools/clippy/tests/ui/map_unwrap_or.rs +++ b/src/tools/clippy/tests/ui/map_unwrap_or.rs @@ -1,6 +1,5 @@ // aux-build:option_helpers.rs -#![feature(custom_inner_attributes)] #![warn(clippy::map_unwrap_or)] #![allow(clippy::uninlined_format_args, clippy::unnecessary_lazy_evaluations)] @@ -82,17 +81,15 @@ fn main() { result_methods(); } +#[clippy::msrv = "1.40"] fn msrv_1_40() { - #![clippy::msrv = "1.40"] - let res: Result<i32, ()> = Ok(1); let _ = res.map(|x| x + 1).unwrap_or_else(|_e| 0); } +#[clippy::msrv = "1.41"] fn msrv_1_41() { - #![clippy::msrv = "1.41"] - let res: Result<i32, ()> = Ok(1); let _ = res.map(|x| x + 1).unwrap_or_else(|_e| 0); diff --git a/src/tools/clippy/tests/ui/map_unwrap_or.stderr b/src/tools/clippy/tests/ui/map_unwrap_or.stderr index d17d24a403e..41781b050fa 100644 --- a/src/tools/clippy/tests/ui/map_unwrap_or.stderr +++ b/src/tools/clippy/tests/ui/map_unwrap_or.stderr @@ -1,5 +1,5 @@ error: called `map(<f>).unwrap_or(<a>)` on an `Option` value. This can be done more directly by calling `map_or(<a>, <f>)` instead - --> $DIR/map_unwrap_or.rs:18:13 + --> $DIR/map_unwrap_or.rs:17:13 | LL | let _ = opt.map(|x| x + 1) | _____________^ @@ -15,7 +15,7 @@ LL + let _ = opt.map_or(0, |x| x + 1); | error: called `map(<f>).unwrap_or(<a>)` on an `Option` value. This can be done more directly by calling `map_or(<a>, <f>)` instead - --> $DIR/map_unwrap_or.rs:22:13 + --> $DIR/map_unwrap_or.rs:21:13 | LL | let _ = opt.map(|x| { | _____________^ @@ -33,7 +33,7 @@ LL ~ ); | error: called `map(<f>).unwrap_or(<a>)` on an `Option` value. This can be done more directly by calling `map_or(<a>, <f>)` instead - --> $DIR/map_unwrap_or.rs:26:13 + --> $DIR/map_unwrap_or.rs:25:13 | LL | let _ = opt.map(|x| x + 1) | _____________^ @@ -50,7 +50,7 @@ LL ~ }, |x| x + 1); | error: called `map(<f>).unwrap_or(None)` on an `Option` value. This can be done more directly by calling `and_then(<f>)` instead - --> $DIR/map_unwrap_or.rs:31:13 + --> $DIR/map_unwrap_or.rs:30:13 | LL | let _ = opt.map(|x| Some(x + 1)).unwrap_or(None); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -62,7 +62,7 @@ LL + let _ = opt.and_then(|x| Some(x + 1)); | error: called `map(<f>).unwrap_or(None)` on an `Option` value. This can be done more directly by calling `and_then(<f>)` instead - --> $DIR/map_unwrap_or.rs:33:13 + --> $DIR/map_unwrap_or.rs:32:13 | LL | let _ = opt.map(|x| { | _____________^ @@ -80,7 +80,7 @@ LL ~ ); | error: called `map(<f>).unwrap_or(None)` on an `Option` value. This can be done more directly by calling `and_then(<f>)` instead - --> $DIR/map_unwrap_or.rs:37:13 + --> $DIR/map_unwrap_or.rs:36:13 | LL | let _ = opt | _____________^ @@ -95,7 +95,7 @@ LL + .and_then(|x| Some(x + 1)); | error: called `map(<f>).unwrap_or(<a>)` on an `Option` value. This can be done more directly by calling `map_or(<a>, <f>)` instead - --> $DIR/map_unwrap_or.rs:48:13 + --> $DIR/map_unwrap_or.rs:47:13 | LL | let _ = Some("prefix").map(|p| format!("{}.", p)).unwrap_or(id); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -107,7 +107,7 @@ LL + let _ = Some("prefix").map_or(id, |p| format!("{}.", p)); | error: called `map(<f>).unwrap_or_else(<g>)` on an `Option` value. This can be done more directly by calling `map_or_else(<g>, <f>)` instead - --> $DIR/map_unwrap_or.rs:52:13 + --> $DIR/map_unwrap_or.rs:51:13 | LL | let _ = opt.map(|x| { | _____________^ @@ -117,7 +117,7 @@ LL | | ).unwrap_or_else(|| 0); | |__________________________^ error: called `map(<f>).unwrap_or_else(<g>)` on an `Option` value. This can be done more directly by calling `map_or_else(<g>, <f>)` instead - --> $DIR/map_unwrap_or.rs:56:13 + --> $DIR/map_unwrap_or.rs:55:13 | LL | let _ = opt.map(|x| x + 1) | _____________^ @@ -127,7 +127,7 @@ LL | | ); | |_________^ error: called `map(<f>).unwrap_or_else(<g>)` on a `Result` value. This can be done more directly by calling `.map_or_else(<g>, <f>)` instead - --> $DIR/map_unwrap_or.rs:68:13 + --> $DIR/map_unwrap_or.rs:67:13 | LL | let _ = res.map(|x| { | _____________^ @@ -137,7 +137,7 @@ LL | | ).unwrap_or_else(|_e| 0); | |____________________________^ error: called `map(<f>).unwrap_or_else(<g>)` on a `Result` value. This can be done more directly by calling `.map_or_else(<g>, <f>)` instead - --> $DIR/map_unwrap_or.rs:72:13 + --> $DIR/map_unwrap_or.rs:71:13 | LL | let _ = res.map(|x| x + 1) | _____________^ @@ -147,7 +147,7 @@ LL | | }); | |__________^ error: called `map(<f>).unwrap_or_else(<g>)` on a `Result` value. This can be done more directly by calling `.map_or_else(<g>, <f>)` instead - --> $DIR/map_unwrap_or.rs:98:13 + --> $DIR/map_unwrap_or.rs:95:13 | LL | let _ = res.map(|x| x + 1).unwrap_or_else(|_e| 0); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `res.map_or_else(|_e| 0, |x| x + 1)` diff --git a/src/tools/clippy/tests/ui/match_expr_like_matches_macro.fixed b/src/tools/clippy/tests/ui/match_expr_like_matches_macro.fixed index 968f462f8a0..55cd15bd5c3 100644 --- a/src/tools/clippy/tests/ui/match_expr_like_matches_macro.fixed +++ b/src/tools/clippy/tests/ui/match_expr_like_matches_macro.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::match_like_matches_macro)] #![allow( unreachable_patterns, @@ -200,17 +199,15 @@ fn main() { }; } +#[clippy::msrv = "1.41"] fn msrv_1_41() { - #![clippy::msrv = "1.41"] - let _y = match Some(5) { Some(0) => true, _ => false, }; } +#[clippy::msrv = "1.42"] fn msrv_1_42() { - #![clippy::msrv = "1.42"] - let _y = matches!(Some(5), Some(0)); } diff --git a/src/tools/clippy/tests/ui/match_expr_like_matches_macro.rs b/src/tools/clippy/tests/ui/match_expr_like_matches_macro.rs index c6b479e27c5..5d645e108e5 100644 --- a/src/tools/clippy/tests/ui/match_expr_like_matches_macro.rs +++ b/src/tools/clippy/tests/ui/match_expr_like_matches_macro.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::match_like_matches_macro)] #![allow( unreachable_patterns, @@ -241,18 +240,16 @@ fn main() { }; } +#[clippy::msrv = "1.41"] fn msrv_1_41() { - #![clippy::msrv = "1.41"] - let _y = match Some(5) { Some(0) => true, _ => false, }; } +#[clippy::msrv = "1.42"] fn msrv_1_42() { - #![clippy::msrv = "1.42"] - let _y = match Some(5) { Some(0) => true, _ => false, diff --git a/src/tools/clippy/tests/ui/match_expr_like_matches_macro.stderr b/src/tools/clippy/tests/ui/match_expr_like_matches_macro.stderr index a4df8008ac2..46f67ef4900 100644 --- a/src/tools/clippy/tests/ui/match_expr_like_matches_macro.stderr +++ b/src/tools/clippy/tests/ui/match_expr_like_matches_macro.stderr @@ -1,5 +1,5 @@ error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:16:14 + --> $DIR/match_expr_like_matches_macro.rs:15:14 | LL | let _y = match x { | ______________^ @@ -11,7 +11,7 @@ LL | | }; = note: `-D clippy::match-like-matches-macro` implied by `-D warnings` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:22:14 + --> $DIR/match_expr_like_matches_macro.rs:21:14 | LL | let _w = match x { | ______________^ @@ -21,7 +21,7 @@ LL | | }; | |_____^ help: try this: `matches!(x, Some(_))` error: redundant pattern matching, consider using `is_none()` - --> $DIR/match_expr_like_matches_macro.rs:28:14 + --> $DIR/match_expr_like_matches_macro.rs:27:14 | LL | let _z = match x { | ______________^ @@ -33,7 +33,7 @@ LL | | }; = note: `-D clippy::redundant-pattern-matching` implied by `-D warnings` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:34:15 + --> $DIR/match_expr_like_matches_macro.rs:33:15 | LL | let _zz = match x { | _______________^ @@ -43,13 +43,13 @@ LL | | }; | |_____^ help: try this: `!matches!(x, Some(r) if r == 0)` error: if let .. else expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:40:16 + --> $DIR/match_expr_like_matches_macro.rs:39:16 | LL | let _zzz = if let Some(5) = x { true } else { false }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `matches!(x, Some(5))` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:64:20 + --> $DIR/match_expr_like_matches_macro.rs:63:20 | LL | let _ans = match x { | ____________________^ @@ -60,7 +60,7 @@ LL | | }; | |_________^ help: try this: `matches!(x, E::A(_) | E::B(_))` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:74:20 + --> $DIR/match_expr_like_matches_macro.rs:73:20 | LL | let _ans = match x { | ____________________^ @@ -73,7 +73,7 @@ LL | | }; | |_________^ help: try this: `matches!(x, E::A(_) | E::B(_))` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:84:20 + --> $DIR/match_expr_like_matches_macro.rs:83:20 | LL | let _ans = match x { | ____________________^ @@ -84,7 +84,7 @@ LL | | }; | |_________^ help: try this: `!matches!(x, E::B(_) | E::C)` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:144:18 + --> $DIR/match_expr_like_matches_macro.rs:143:18 | LL | let _z = match &z { | __________________^ @@ -94,7 +94,7 @@ LL | | }; | |_________^ help: try this: `matches!(z, Some(3))` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:153:18 + --> $DIR/match_expr_like_matches_macro.rs:152:18 | LL | let _z = match &z { | __________________^ @@ -104,7 +104,7 @@ LL | | }; | |_________^ help: try this: `matches!(&z, Some(3))` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:170:21 + --> $DIR/match_expr_like_matches_macro.rs:169:21 | LL | let _ = match &z { | _____________________^ @@ -114,7 +114,7 @@ LL | | }; | |_____________^ help: try this: `matches!(&z, AnEnum::X)` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:184:20 + --> $DIR/match_expr_like_matches_macro.rs:183:20 | LL | let _res = match &val { | ____________________^ @@ -124,7 +124,7 @@ LL | | }; | |_________^ help: try this: `matches!(&val, &Some(ref _a))` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:196:20 + --> $DIR/match_expr_like_matches_macro.rs:195:20 | LL | let _res = match &val { | ____________________^ @@ -134,7 +134,7 @@ LL | | }; | |_________^ help: try this: `matches!(&val, &Some(ref _a))` error: match expression looks like `matches!` macro - --> $DIR/match_expr_like_matches_macro.rs:256:14 + --> $DIR/match_expr_like_matches_macro.rs:253:14 | LL | let _y = match Some(5) { | ______________^ diff --git a/src/tools/clippy/tests/ui/mem_replace.fixed b/src/tools/clippy/tests/ui/mem_replace.fixed index ae237395b95..874d5584330 100644 --- a/src/tools/clippy/tests/ui/mem_replace.fixed +++ b/src/tools/clippy/tests/ui/mem_replace.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused)] #![warn( clippy::all, @@ -80,16 +79,14 @@ fn main() { dont_lint_primitive(); } +#[clippy::msrv = "1.39"] fn msrv_1_39() { - #![clippy::msrv = "1.39"] - let mut s = String::from("foo"); let _ = std::mem::replace(&mut s, String::default()); } +#[clippy::msrv = "1.40"] fn msrv_1_40() { - #![clippy::msrv = "1.40"] - let mut s = String::from("foo"); let _ = std::mem::take(&mut s); } diff --git a/src/tools/clippy/tests/ui/mem_replace.rs b/src/tools/clippy/tests/ui/mem_replace.rs index 3202e99e0be..f4f3bff5144 100644 --- a/src/tools/clippy/tests/ui/mem_replace.rs +++ b/src/tools/clippy/tests/ui/mem_replace.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused)] #![warn( clippy::all, @@ -80,16 +79,14 @@ fn main() { dont_lint_primitive(); } +#[clippy::msrv = "1.39"] fn msrv_1_39() { - #![clippy::msrv = "1.39"] - let mut s = String::from("foo"); let _ = std::mem::replace(&mut s, String::default()); } +#[clippy::msrv = "1.40"] fn msrv_1_40() { - #![clippy::msrv = "1.40"] - let mut s = String::from("foo"); let _ = std::mem::replace(&mut s, String::default()); } diff --git a/src/tools/clippy/tests/ui/mem_replace.stderr b/src/tools/clippy/tests/ui/mem_replace.stderr index dd8a50dab90..caa127f76ee 100644 --- a/src/tools/clippy/tests/ui/mem_replace.stderr +++ b/src/tools/clippy/tests/ui/mem_replace.stderr @@ -1,5 +1,5 @@ error: replacing an `Option` with `None` - --> $DIR/mem_replace.rs:17:13 + --> $DIR/mem_replace.rs:16:13 | LL | let _ = mem::replace(&mut an_option, None); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider `Option::take()` instead: `an_option.take()` @@ -7,13 +7,13 @@ LL | let _ = mem::replace(&mut an_option, None); = note: `-D clippy::mem-replace-option-with-none` implied by `-D warnings` error: replacing an `Option` with `None` - --> $DIR/mem_replace.rs:19:13 + --> $DIR/mem_replace.rs:18:13 | LL | let _ = mem::replace(an_option, None); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider `Option::take()` instead: `an_option.take()` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:24:13 + --> $DIR/mem_replace.rs:23:13 | LL | let _ = std::mem::replace(&mut s, String::default()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut s)` @@ -21,103 +21,103 @@ LL | let _ = std::mem::replace(&mut s, String::default()); = note: `-D clippy::mem-replace-with-default` implied by `-D warnings` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:27:13 + --> $DIR/mem_replace.rs:26:13 | LL | let _ = std::mem::replace(s, String::default()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(s)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:28:13 + --> $DIR/mem_replace.rs:27:13 | LL | let _ = std::mem::replace(s, Default::default()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(s)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:31:13 + --> $DIR/mem_replace.rs:30:13 | LL | let _ = std::mem::replace(&mut v, Vec::default()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut v)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:32:13 + --> $DIR/mem_replace.rs:31:13 | LL | let _ = std::mem::replace(&mut v, Default::default()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut v)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:33:13 + --> $DIR/mem_replace.rs:32:13 | LL | let _ = std::mem::replace(&mut v, Vec::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut v)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:34:13 + --> $DIR/mem_replace.rs:33:13 | LL | let _ = std::mem::replace(&mut v, vec![]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut v)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:37:13 + --> $DIR/mem_replace.rs:36:13 | LL | let _ = std::mem::replace(&mut hash_map, HashMap::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut hash_map)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:40:13 + --> $DIR/mem_replace.rs:39:13 | LL | let _ = std::mem::replace(&mut btree_map, BTreeMap::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut btree_map)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:43:13 + --> $DIR/mem_replace.rs:42:13 | LL | let _ = std::mem::replace(&mut vd, VecDeque::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut vd)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:46:13 + --> $DIR/mem_replace.rs:45:13 | LL | let _ = std::mem::replace(&mut hash_set, HashSet::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut hash_set)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:49:13 + --> $DIR/mem_replace.rs:48:13 | LL | let _ = std::mem::replace(&mut btree_set, BTreeSet::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut btree_set)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:52:13 + --> $DIR/mem_replace.rs:51:13 | LL | let _ = std::mem::replace(&mut list, LinkedList::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut list)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:55:13 + --> $DIR/mem_replace.rs:54:13 | LL | let _ = std::mem::replace(&mut binary_heap, BinaryHeap::new()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut binary_heap)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:58:13 + --> $DIR/mem_replace.rs:57:13 | LL | let _ = std::mem::replace(&mut tuple, (vec![], BinaryHeap::new())); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut tuple)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:61:13 + --> $DIR/mem_replace.rs:60:13 | LL | let _ = std::mem::replace(&mut refstr, ""); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut refstr)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:64:13 + --> $DIR/mem_replace.rs:63:13 | LL | let _ = std::mem::replace(&mut slice, &[]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut slice)` error: replacing a value of type `T` with `T::default()` is better expressed using `std::mem::take` - --> $DIR/mem_replace.rs:94:13 + --> $DIR/mem_replace.rs:91:13 | LL | let _ = std::mem::replace(&mut s, String::default()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::mem::take(&mut s)` diff --git a/src/tools/clippy/tests/ui/min_rust_version_attr.rs b/src/tools/clippy/tests/ui/min_rust_version_attr.rs index cd148063bf0..955e7eb7276 100644 --- a/src/tools/clippy/tests/ui/min_rust_version_attr.rs +++ b/src/tools/clippy/tests/ui/min_rust_version_attr.rs @@ -3,27 +3,60 @@ fn main() {} +#[clippy::msrv = "1.42.0"] fn just_under_msrv() { - #![clippy::msrv = "1.42.0"] let log2_10 = 3.321928094887362; } +#[clippy::msrv = "1.43.0"] fn meets_msrv() { - #![clippy::msrv = "1.43.0"] let log2_10 = 3.321928094887362; } +#[clippy::msrv = "1.44.0"] fn just_above_msrv() { - #![clippy::msrv = "1.44.0"] let log2_10 = 3.321928094887362; } +#[clippy::msrv = "1.42"] fn no_patch_under() { - #![clippy::msrv = "1.42"] let log2_10 = 3.321928094887362; } +#[clippy::msrv = "1.43"] fn no_patch_meets() { + let log2_10 = 3.321928094887362; +} + +fn inner_attr_under() { + #![clippy::msrv = "1.42"] + let log2_10 = 3.321928094887362; +} + +fn inner_attr_meets() { #![clippy::msrv = "1.43"] let log2_10 = 3.321928094887362; } + +// https://github.com/rust-lang/rust-clippy/issues/6920 +fn scoping() { + mod m { + #![clippy::msrv = "1.42.0"] + } + + // Should warn + let log2_10 = 3.321928094887362; + + mod a { + #![clippy::msrv = "1.42.0"] + + fn should_warn() { + #![clippy::msrv = "1.43.0"] + let log2_10 = 3.321928094887362; + } + + fn should_not_warn() { + let log2_10 = 3.321928094887362; + } + } +} diff --git a/src/tools/clippy/tests/ui/min_rust_version_attr.stderr b/src/tools/clippy/tests/ui/min_rust_version_attr.stderr index 68aa5874819..7e2135584ef 100644 --- a/src/tools/clippy/tests/ui/min_rust_version_attr.stderr +++ b/src/tools/clippy/tests/ui/min_rust_version_attr.stderr @@ -23,5 +23,29 @@ LL | let log2_10 = 3.321928094887362; | = help: consider using the constant directly -error: aborting due to 3 previous errors +error: approximate value of `f{32, 64}::consts::LOG2_10` found + --> $DIR/min_rust_version_attr.rs:38:19 + | +LL | let log2_10 = 3.321928094887362; + | ^^^^^^^^^^^^^^^^^ + | + = help: consider using the constant directly + +error: approximate value of `f{32, 64}::consts::LOG2_10` found + --> $DIR/min_rust_version_attr.rs:48:19 + | +LL | let log2_10 = 3.321928094887362; + | ^^^^^^^^^^^^^^^^^ + | + = help: consider using the constant directly + +error: approximate value of `f{32, 64}::consts::LOG2_10` found + --> $DIR/min_rust_version_attr.rs:55:27 + | +LL | let log2_10 = 3.321928094887362; + | ^^^^^^^^^^^^^^^^^ + | + = help: consider using the constant directly + +error: aborting due to 6 previous errors diff --git a/src/tools/clippy/tests/ui/min_rust_version_invalid_attr.stderr b/src/tools/clippy/tests/ui/min_rust_version_invalid_attr.stderr index 93370a0fa9c..675b7803152 100644 --- a/src/tools/clippy/tests/ui/min_rust_version_invalid_attr.stderr +++ b/src/tools/clippy/tests/ui/min_rust_version_invalid_attr.stderr @@ -4,7 +4,7 @@ error: `invalid.version` is not a valid Rust version LL | #![clippy::msrv = "invalid.version"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `msrv` cannot be an outer attribute +error: `invalid.version` is not a valid Rust version --> $DIR/min_rust_version_invalid_attr.rs:6:1 | LL | #[clippy::msrv = "invalid.version"] diff --git a/src/tools/clippy/tests/ui/misnamed_getters.rs b/src/tools/clippy/tests/ui/misnamed_getters.rs new file mode 100644 index 00000000000..03e7dac7df9 --- /dev/null +++ b/src/tools/clippy/tests/ui/misnamed_getters.rs @@ -0,0 +1,124 @@ +#![allow(unused)] +#![warn(clippy::misnamed_getters)] + +struct A { + a: u8, + b: u8, + c: u8, +} + +impl A { + fn a(&self) -> &u8 { + &self.b + } + fn a_mut(&mut self) -> &mut u8 { + &mut self.b + } + + fn b(self) -> u8 { + self.a + } + + fn b_mut(&mut self) -> &mut u8 { + &mut self.a + } + + fn c(&self) -> &u8 { + &self.b + } + + fn c_mut(&mut self) -> &mut u8 { + &mut self.a + } +} + +union B { + a: u8, + b: u8, +} + +impl B { + unsafe fn a(&self) -> &u8 { + &self.b + } + unsafe fn a_mut(&mut self) -> &mut u8 { + &mut self.b + } + + unsafe fn b(self) -> u8 { + self.a + } + + unsafe fn b_mut(&mut self) -> &mut u8 { + &mut self.a + } + + unsafe fn c(&self) -> &u8 { + &self.b + } + + unsafe fn c_mut(&mut self) -> &mut u8 { + &mut self.a + } + + unsafe fn a_unchecked(&self) -> &u8 { + &self.b + } + unsafe fn a_unchecked_mut(&mut self) -> &mut u8 { + &mut self.b + } + + unsafe fn b_unchecked(self) -> u8 { + self.a + } + + unsafe fn b_unchecked_mut(&mut self) -> &mut u8 { + &mut self.a + } + + unsafe fn c_unchecked(&self) -> &u8 { + &self.b + } + + unsafe fn c_unchecked_mut(&mut self) -> &mut u8 { + &mut self.a + } +} + +struct D { + d: u8, + inner: A, +} + +impl core::ops::Deref for D { + type Target = A; + fn deref(&self) -> &A { + &self.inner + } +} + +impl core::ops::DerefMut for D { + fn deref_mut(&mut self) -> &mut A { + &mut self.inner + } +} + +impl D { + fn a(&self) -> &u8 { + &self.b + } + fn a_mut(&mut self) -> &mut u8 { + &mut self.b + } + + fn d(&self) -> &u8 { + &self.b + } + fn d_mut(&mut self) -> &mut u8 { + &mut self.b + } +} + +fn main() { + // test code goes here +} diff --git a/src/tools/clippy/tests/ui/misnamed_getters.stderr b/src/tools/clippy/tests/ui/misnamed_getters.stderr new file mode 100644 index 00000000000..1e38a83d019 --- /dev/null +++ b/src/tools/clippy/tests/ui/misnamed_getters.stderr @@ -0,0 +1,166 @@ +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:11:5 + | +LL | / fn a(&self) -> &u8 { +LL | | &self.b + | | ------- help: consider using: `&self.a` +LL | | } + | |_____^ + | + = note: `-D clippy::misnamed-getters` implied by `-D warnings` + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:14:5 + | +LL | / fn a_mut(&mut self) -> &mut u8 { +LL | | &mut self.b + | | ----------- help: consider using: `&mut self.a` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:18:5 + | +LL | / fn b(self) -> u8 { +LL | | self.a + | | ------ help: consider using: `self.b` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:22:5 + | +LL | / fn b_mut(&mut self) -> &mut u8 { +LL | | &mut self.a + | | ----------- help: consider using: `&mut self.b` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:26:5 + | +LL | / fn c(&self) -> &u8 { +LL | | &self.b + | | ------- help: consider using: `&self.c` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:30:5 + | +LL | / fn c_mut(&mut self) -> &mut u8 { +LL | | &mut self.a + | | ----------- help: consider using: `&mut self.c` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:41:5 + | +LL | / unsafe fn a(&self) -> &u8 { +LL | | &self.b + | | ------- help: consider using: `&self.a` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:44:5 + | +LL | / unsafe fn a_mut(&mut self) -> &mut u8 { +LL | | &mut self.b + | | ----------- help: consider using: `&mut self.a` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:48:5 + | +LL | / unsafe fn b(self) -> u8 { +LL | | self.a + | | ------ help: consider using: `self.b` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:52:5 + | +LL | / unsafe fn b_mut(&mut self) -> &mut u8 { +LL | | &mut self.a + | | ----------- help: consider using: `&mut self.b` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:64:5 + | +LL | / unsafe fn a_unchecked(&self) -> &u8 { +LL | | &self.b + | | ------- help: consider using: `&self.a` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:67:5 + | +LL | / unsafe fn a_unchecked_mut(&mut self) -> &mut u8 { +LL | | &mut self.b + | | ----------- help: consider using: `&mut self.a` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:71:5 + | +LL | / unsafe fn b_unchecked(self) -> u8 { +LL | | self.a + | | ------ help: consider using: `self.b` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:75:5 + | +LL | / unsafe fn b_unchecked_mut(&mut self) -> &mut u8 { +LL | | &mut self.a + | | ----------- help: consider using: `&mut self.b` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:107:5 + | +LL | / fn a(&self) -> &u8 { +LL | | &self.b + | | ------- help: consider using: `&self.a` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:110:5 + | +LL | / fn a_mut(&mut self) -> &mut u8 { +LL | | &mut self.b + | | ----------- help: consider using: `&mut self.a` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:114:5 + | +LL | / fn d(&self) -> &u8 { +LL | | &self.b + | | ------- help: consider using: `&self.d` +LL | | } + | |_____^ + +error: getter function appears to return the wrong field + --> $DIR/misnamed_getters.rs:117:5 + | +LL | / fn d_mut(&mut self) -> &mut u8 { +LL | | &mut self.b + | | ----------- help: consider using: `&mut self.d` +LL | | } + | |_____^ + +error: aborting due to 18 previous errors + diff --git a/src/tools/clippy/tests/ui/missing_const_for_fn/cant_be_const.rs b/src/tools/clippy/tests/ui/missing_const_for_fn/cant_be_const.rs index b950248ef94..75cace18167 100644 --- a/src/tools/clippy/tests/ui/missing_const_for_fn/cant_be_const.rs +++ b/src/tools/clippy/tests/ui/missing_const_for_fn/cant_be_const.rs @@ -7,7 +7,6 @@ #![warn(clippy::missing_const_for_fn)] #![feature(start)] -#![feature(custom_inner_attributes)] extern crate helper; extern crate proc_macro_with_span; @@ -115,9 +114,8 @@ fn unstably_const_fn() { helper::unstably_const_fn() } +#[clippy::msrv = "1.46.0"] mod const_fn_stabilized_after_msrv { - #![clippy::msrv = "1.46.0"] - // Do not lint this because `u8::is_ascii_digit` is stabilized as a const function in 1.47.0. fn const_fn_stabilized_after_msrv(byte: u8) { byte.is_ascii_digit(); diff --git a/src/tools/clippy/tests/ui/missing_const_for_fn/could_be_const.rs b/src/tools/clippy/tests/ui/missing_const_for_fn/could_be_const.rs index b85e8878491..0246c8622ed 100644 --- a/src/tools/clippy/tests/ui/missing_const_for_fn/could_be_const.rs +++ b/src/tools/clippy/tests/ui/missing_const_for_fn/could_be_const.rs @@ -1,6 +1,5 @@ #![warn(clippy::missing_const_for_fn)] #![allow(incomplete_features, clippy::let_and_return)] -#![feature(custom_inner_attributes)] use std::mem::transmute; @@ -68,24 +67,21 @@ mod with_drop { } } +#[clippy::msrv = "1.47.0"] mod const_fn_stabilized_before_msrv { - #![clippy::msrv = "1.47.0"] - // This could be const because `u8::is_ascii_digit` is a stable const function in 1.47. fn const_fn_stabilized_before_msrv(byte: u8) { byte.is_ascii_digit(); } } +#[clippy::msrv = "1.45"] fn msrv_1_45() -> i32 { - #![clippy::msrv = "1.45"] - 45 } +#[clippy::msrv = "1.46"] fn msrv_1_46() -> i32 { - #![clippy::msrv = "1.46"] - 46 } diff --git a/src/tools/clippy/tests/ui/missing_const_for_fn/could_be_const.stderr b/src/tools/clippy/tests/ui/missing_const_for_fn/could_be_const.stderr index f8e221c82f1..955e1ed2634 100644 --- a/src/tools/clippy/tests/ui/missing_const_for_fn/could_be_const.stderr +++ b/src/tools/clippy/tests/ui/missing_const_for_fn/could_be_const.stderr @@ -1,5 +1,5 @@ error: this could be a `const fn` - --> $DIR/could_be_const.rs:13:5 + --> $DIR/could_be_const.rs:12:5 | LL | / pub fn new() -> Self { LL | | Self { guess: 42 } @@ -9,7 +9,7 @@ LL | | } = note: `-D clippy::missing-const-for-fn` implied by `-D warnings` error: this could be a `const fn` - --> $DIR/could_be_const.rs:17:5 + --> $DIR/could_be_const.rs:16:5 | LL | / fn const_generic_params<'a, T, const N: usize>(&self, b: &'a [T; N]) -> &'a [T; N] { LL | | b @@ -17,7 +17,7 @@ LL | | } | |_____^ error: this could be a `const fn` - --> $DIR/could_be_const.rs:23:1 + --> $DIR/could_be_const.rs:22:1 | LL | / fn one() -> i32 { LL | | 1 @@ -25,7 +25,7 @@ LL | | } | |_^ error: this could be a `const fn` - --> $DIR/could_be_const.rs:28:1 + --> $DIR/could_be_const.rs:27:1 | LL | / fn two() -> i32 { LL | | let abc = 2; @@ -34,7 +34,7 @@ LL | | } | |_^ error: this could be a `const fn` - --> $DIR/could_be_const.rs:34:1 + --> $DIR/could_be_const.rs:33:1 | LL | / fn string() -> String { LL | | String::new() @@ -42,7 +42,7 @@ LL | | } | |_^ error: this could be a `const fn` - --> $DIR/could_be_const.rs:39:1 + --> $DIR/could_be_const.rs:38:1 | LL | / unsafe fn four() -> i32 { LL | | 4 @@ -50,7 +50,7 @@ LL | | } | |_^ error: this could be a `const fn` - --> $DIR/could_be_const.rs:44:1 + --> $DIR/could_be_const.rs:43:1 | LL | / fn generic<T>(t: T) -> T { LL | | t @@ -58,7 +58,7 @@ LL | | } | |_^ error: this could be a `const fn` - --> $DIR/could_be_const.rs:52:1 + --> $DIR/could_be_const.rs:51:1 | LL | / fn generic_arr<T: Copy>(t: [T; 1]) -> T { LL | | t[0] @@ -66,7 +66,7 @@ LL | | } | |_^ error: this could be a `const fn` - --> $DIR/could_be_const.rs:65:9 + --> $DIR/could_be_const.rs:64:9 | LL | / pub fn b(self, a: &A) -> B { LL | | B @@ -74,7 +74,7 @@ LL | | } | |_________^ error: this could be a `const fn` - --> $DIR/could_be_const.rs:75:5 + --> $DIR/could_be_const.rs:73:5 | LL | / fn const_fn_stabilized_before_msrv(byte: u8) { LL | | byte.is_ascii_digit(); @@ -82,11 +82,9 @@ LL | | } | |_____^ error: this could be a `const fn` - --> $DIR/could_be_const.rs:86:1 + --> $DIR/could_be_const.rs:84:1 | LL | / fn msrv_1_46() -> i32 { -LL | | #![clippy::msrv = "1.46"] -LL | | LL | | 46 LL | | } | |_^ diff --git a/src/tools/clippy/tests/ui/needless_borrow.fixed b/src/tools/clippy/tests/ui/needless_borrow.fixed index 85b6b639d55..4cb7f6b687f 100644 --- a/src/tools/clippy/tests/ui/needless_borrow.fixed +++ b/src/tools/clippy/tests/ui/needless_borrow.fixed @@ -1,13 +1,13 @@ // run-rustfix -#![feature(custom_inner_attributes, lint_reasons)] - -#[warn(clippy::all, clippy::needless_borrow)] -#[allow(unused_variables)] -#[allow( +#![feature(lint_reasons)] +#![allow( + unused, clippy::uninlined_format_args, clippy::unnecessary_mut_passed, clippy::unnecessary_to_owned )] +#![warn(clippy::needless_borrow)] + fn main() { let a = 5; let ref_a = &a; @@ -171,14 +171,12 @@ impl<'a> Trait for &'a str {} fn h(_: &dyn Trait) {} -#[allow(dead_code)] fn check_expect_suppression() { let a = 5; #[expect(clippy::needless_borrow)] let _ = x(&&a); } -#[allow(dead_code)] mod issue9160 { pub struct S<F> { f: F, @@ -267,7 +265,6 @@ where } // https://github.com/rust-lang/rust-clippy/pull/9136#pullrequestreview-1037379321 -#[allow(dead_code)] mod copyable_iterator { #[derive(Clone, Copy)] struct Iter; @@ -287,25 +284,20 @@ mod copyable_iterator { } } +#[clippy::msrv = "1.52.0"] mod under_msrv { - #![allow(dead_code)] - #![clippy::msrv = "1.52.0"] - fn foo() { let _ = std::process::Command::new("ls").args(&["-a", "-l"]).status().unwrap(); } } +#[clippy::msrv = "1.53.0"] mod meets_msrv { - #![allow(dead_code)] - #![clippy::msrv = "1.53.0"] - fn foo() { let _ = std::process::Command::new("ls").args(["-a", "-l"]).status().unwrap(); } } -#[allow(unused)] fn issue9383() { // Should not lint because unions need explicit deref when accessing field use std::mem::ManuallyDrop; @@ -334,7 +326,6 @@ fn issue9383() { } } -#[allow(dead_code)] fn closure_test() { let env = "env".to_owned(); let arg = "arg".to_owned(); @@ -348,7 +339,6 @@ fn closure_test() { f(arg); } -#[allow(dead_code)] mod significant_drop { #[derive(Debug)] struct X; @@ -368,7 +358,6 @@ mod significant_drop { fn debug(_: impl std::fmt::Debug) {} } -#[allow(dead_code)] mod used_exactly_once { fn foo(x: String) { use_x(x); @@ -376,7 +365,6 @@ mod used_exactly_once { fn use_x(_: impl AsRef<str>) {} } -#[allow(dead_code)] mod used_more_than_once { fn foo(x: String) { use_x(&x); @@ -387,7 +375,6 @@ mod used_more_than_once { } // https://github.com/rust-lang/rust-clippy/issues/9111#issuecomment-1277114280 -#[allow(dead_code)] mod issue_9111 { struct A; @@ -409,7 +396,6 @@ mod issue_9111 { } } -#[allow(dead_code)] mod issue_9710 { fn main() { let string = String::new(); @@ -421,7 +407,6 @@ mod issue_9710 { fn f<T: AsRef<str>>(_: T) {} } -#[allow(dead_code)] mod issue_9739 { fn foo<D: std::fmt::Display>(_it: impl IntoIterator<Item = D>) {} @@ -434,7 +419,6 @@ mod issue_9739 { } } -#[allow(dead_code)] mod issue_9739_method_variant { struct S; @@ -451,7 +435,6 @@ mod issue_9739_method_variant { } } -#[allow(dead_code)] mod issue_9782 { fn foo<T: AsRef<[u8]>>(t: T) { println!("{}", std::mem::size_of::<T>()); @@ -475,7 +458,6 @@ mod issue_9782 { } } -#[allow(dead_code)] mod issue_9782_type_relative_variant { struct S; @@ -493,7 +475,6 @@ mod issue_9782_type_relative_variant { } } -#[allow(dead_code)] mod issue_9782_method_variant { struct S; diff --git a/src/tools/clippy/tests/ui/needless_borrow.rs b/src/tools/clippy/tests/ui/needless_borrow.rs index 7b97bcf3817..9a01190ed8d 100644 --- a/src/tools/clippy/tests/ui/needless_borrow.rs +++ b/src/tools/clippy/tests/ui/needless_borrow.rs @@ -1,13 +1,13 @@ // run-rustfix -#![feature(custom_inner_attributes, lint_reasons)] - -#[warn(clippy::all, clippy::needless_borrow)] -#[allow(unused_variables)] -#[allow( +#![feature(lint_reasons)] +#![allow( + unused, clippy::uninlined_format_args, clippy::unnecessary_mut_passed, clippy::unnecessary_to_owned )] +#![warn(clippy::needless_borrow)] + fn main() { let a = 5; let ref_a = &a; @@ -171,14 +171,12 @@ impl<'a> Trait for &'a str {} fn h(_: &dyn Trait) {} -#[allow(dead_code)] fn check_expect_suppression() { let a = 5; #[expect(clippy::needless_borrow)] let _ = x(&&a); } -#[allow(dead_code)] mod issue9160 { pub struct S<F> { f: F, @@ -267,7 +265,6 @@ where } // https://github.com/rust-lang/rust-clippy/pull/9136#pullrequestreview-1037379321 -#[allow(dead_code)] mod copyable_iterator { #[derive(Clone, Copy)] struct Iter; @@ -287,25 +284,20 @@ mod copyable_iterator { } } +#[clippy::msrv = "1.52.0"] mod under_msrv { - #![allow(dead_code)] - #![clippy::msrv = "1.52.0"] - fn foo() { let _ = std::process::Command::new("ls").args(&["-a", "-l"]).status().unwrap(); } } +#[clippy::msrv = "1.53.0"] mod meets_msrv { - #![allow(dead_code)] - #![clippy::msrv = "1.53.0"] - fn foo() { let _ = std::process::Command::new("ls").args(&["-a", "-l"]).status().unwrap(); } } -#[allow(unused)] fn issue9383() { // Should not lint because unions need explicit deref when accessing field use std::mem::ManuallyDrop; @@ -334,7 +326,6 @@ fn issue9383() { } } -#[allow(dead_code)] fn closure_test() { let env = "env".to_owned(); let arg = "arg".to_owned(); @@ -348,7 +339,6 @@ fn closure_test() { f(arg); } -#[allow(dead_code)] mod significant_drop { #[derive(Debug)] struct X; @@ -368,7 +358,6 @@ mod significant_drop { fn debug(_: impl std::fmt::Debug) {} } -#[allow(dead_code)] mod used_exactly_once { fn foo(x: String) { use_x(&x); @@ -376,7 +365,6 @@ mod used_exactly_once { fn use_x(_: impl AsRef<str>) {} } -#[allow(dead_code)] mod used_more_than_once { fn foo(x: String) { use_x(&x); @@ -387,7 +375,6 @@ mod used_more_than_once { } // https://github.com/rust-lang/rust-clippy/issues/9111#issuecomment-1277114280 -#[allow(dead_code)] mod issue_9111 { struct A; @@ -409,7 +396,6 @@ mod issue_9111 { } } -#[allow(dead_code)] mod issue_9710 { fn main() { let string = String::new(); @@ -421,7 +407,6 @@ mod issue_9710 { fn f<T: AsRef<str>>(_: T) {} } -#[allow(dead_code)] mod issue_9739 { fn foo<D: std::fmt::Display>(_it: impl IntoIterator<Item = D>) {} @@ -434,7 +419,6 @@ mod issue_9739 { } } -#[allow(dead_code)] mod issue_9739_method_variant { struct S; @@ -451,7 +435,6 @@ mod issue_9739_method_variant { } } -#[allow(dead_code)] mod issue_9782 { fn foo<T: AsRef<[u8]>>(t: T) { println!("{}", std::mem::size_of::<T>()); @@ -475,7 +458,6 @@ mod issue_9782 { } } -#[allow(dead_code)] mod issue_9782_type_relative_variant { struct S; @@ -493,7 +475,6 @@ mod issue_9782_type_relative_variant { } } -#[allow(dead_code)] mod issue_9782_method_variant { struct S; diff --git a/src/tools/clippy/tests/ui/needless_borrow.stderr b/src/tools/clippy/tests/ui/needless_borrow.stderr index 485e6b84c86..d26c317124b 100644 --- a/src/tools/clippy/tests/ui/needless_borrow.stderr +++ b/src/tools/clippy/tests/ui/needless_borrow.stderr @@ -163,55 +163,55 @@ LL | let _ = std::fs::write("x", &"".to_string()); | ^^^^^^^^^^^^^^^ help: change this to: `"".to_string()` error: this expression borrows a value the compiler would automatically borrow - --> $DIR/needless_borrow.rs:192:13 + --> $DIR/needless_borrow.rs:190:13 | LL | (&self.f)() | ^^^^^^^^^ help: change this to: `(self.f)` error: this expression borrows a value the compiler would automatically borrow - --> $DIR/needless_borrow.rs:201:13 + --> $DIR/needless_borrow.rs:199:13 | LL | (&mut self.f)() | ^^^^^^^^^^^^^ help: change this to: `(self.f)` error: the borrowed expression implements the required traits - --> $DIR/needless_borrow.rs:286:20 + --> $DIR/needless_borrow.rs:283:20 | LL | takes_iter(&mut x) | ^^^^^^ help: change this to: `x` error: the borrowed expression implements the required traits - --> $DIR/needless_borrow.rs:304:55 + --> $DIR/needless_borrow.rs:297:55 | LL | let _ = std::process::Command::new("ls").args(&["-a", "-l"]).status().unwrap(); | ^^^^^^^^^^^^^ help: change this to: `["-a", "-l"]` error: the borrowed expression implements the required traits - --> $DIR/needless_borrow.rs:344:37 + --> $DIR/needless_borrow.rs:335:37 | LL | let _ = std::fs::write("x", &arg); | ^^^^ help: change this to: `arg` error: the borrowed expression implements the required traits - --> $DIR/needless_borrow.rs:345:37 + --> $DIR/needless_borrow.rs:336:37 | LL | let _ = std::fs::write("x", &loc); | ^^^^ help: change this to: `loc` error: the borrowed expression implements the required traits - --> $DIR/needless_borrow.rs:364:15 + --> $DIR/needless_borrow.rs:354:15 | LL | debug(&x); | ^^ help: change this to: `x` error: the borrowed expression implements the required traits - --> $DIR/needless_borrow.rs:374:15 + --> $DIR/needless_borrow.rs:363:15 | LL | use_x(&x); | ^^ help: change this to: `x` error: the borrowed expression implements the required traits - --> $DIR/needless_borrow.rs:474:13 + --> $DIR/needless_borrow.rs:457:13 | LL | foo(&a); | ^^ help: change this to: `a` diff --git a/src/tools/clippy/tests/ui/needless_question_mark.fixed b/src/tools/clippy/tests/ui/needless_question_mark.fixed index ba9d15e59d0..7eaca571992 100644 --- a/src/tools/clippy/tests/ui/needless_question_mark.fixed +++ b/src/tools/clippy/tests/ui/needless_question_mark.fixed @@ -8,7 +8,6 @@ dead_code, unused_must_use )] -#![feature(custom_inner_attributes)] struct TO { magic: Option<usize>, diff --git a/src/tools/clippy/tests/ui/needless_question_mark.rs b/src/tools/clippy/tests/ui/needless_question_mark.rs index 3a6523e8fe8..960bc7b7898 100644 --- a/src/tools/clippy/tests/ui/needless_question_mark.rs +++ b/src/tools/clippy/tests/ui/needless_question_mark.rs @@ -8,7 +8,6 @@ dead_code, unused_must_use )] -#![feature(custom_inner_attributes)] struct TO { magic: Option<usize>, diff --git a/src/tools/clippy/tests/ui/needless_question_mark.stderr b/src/tools/clippy/tests/ui/needless_question_mark.stderr index f8308e24e77..d1f89e326c6 100644 --- a/src/tools/clippy/tests/ui/needless_question_mark.stderr +++ b/src/tools/clippy/tests/ui/needless_question_mark.stderr @@ -1,5 +1,5 @@ error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:23:12 + --> $DIR/needless_question_mark.rs:22:12 | LL | return Some(to.magic?); | ^^^^^^^^^^^^^^^ help: try removing question mark and `Some()`: `to.magic` @@ -7,67 +7,67 @@ LL | return Some(to.magic?); = note: `-D clippy::needless-question-mark` implied by `-D warnings` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:31:12 + --> $DIR/needless_question_mark.rs:30:12 | LL | return Some(to.magic?) | ^^^^^^^^^^^^^^^ help: try removing question mark and `Some()`: `to.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:36:5 + --> $DIR/needless_question_mark.rs:35:5 | LL | Some(to.magic?) | ^^^^^^^^^^^^^^^ help: try removing question mark and `Some()`: `to.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:41:21 + --> $DIR/needless_question_mark.rs:40:21 | LL | to.and_then(|t| Some(t.magic?)) | ^^^^^^^^^^^^^^ help: try removing question mark and `Some()`: `t.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:50:9 + --> $DIR/needless_question_mark.rs:49:9 | LL | Some(t.magic?) | ^^^^^^^^^^^^^^ help: try removing question mark and `Some()`: `t.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:55:12 + --> $DIR/needless_question_mark.rs:54:12 | LL | return Ok(tr.magic?); | ^^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `tr.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:62:12 + --> $DIR/needless_question_mark.rs:61:12 | LL | return Ok(tr.magic?) | ^^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `tr.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:66:5 + --> $DIR/needless_question_mark.rs:65:5 | LL | Ok(tr.magic?) | ^^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `tr.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:70:21 + --> $DIR/needless_question_mark.rs:69:21 | LL | tr.and_then(|t| Ok(t.magic?)) | ^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `t.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:78:9 + --> $DIR/needless_question_mark.rs:77:9 | LL | Ok(t.magic?) | ^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `t.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:85:16 + --> $DIR/needless_question_mark.rs:84:16 | LL | return Ok(t.magic?); | ^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `t.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:120:27 + --> $DIR/needless_question_mark.rs:119:27 | LL | || -> Option<_> { Some(Some($expr)?) }() | ^^^^^^^^^^^^^^^^^^ help: try removing question mark and `Some()`: `Some($expr)` @@ -78,13 +78,13 @@ LL | let _x = some_and_qmark_in_macro!(x?); = note: this error originates in the macro `some_and_qmark_in_macro` (in Nightly builds, run with -Z macro-backtrace for more info) error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:131:5 + --> $DIR/needless_question_mark.rs:130:5 | LL | Some(to.magic?) | ^^^^^^^^^^^^^^^ help: try removing question mark and `Some()`: `to.magic` error: question mark operator is useless here - --> $DIR/needless_question_mark.rs:139:5 + --> $DIR/needless_question_mark.rs:138:5 | LL | Ok(s.magic?) | ^^^^^^^^^^^^ help: try removing question mark and `Ok()`: `s.magic` diff --git a/src/tools/clippy/tests/ui/needless_return.fixed b/src/tools/clippy/tests/ui/needless_return.fixed index d2163b14fca..4386aaec49e 100644 --- a/src/tools/clippy/tests/ui/needless_return.fixed +++ b/src/tools/clippy/tests/ui/needless_return.fixed @@ -59,14 +59,11 @@ fn test_macro_call() -> i32 { } fn test_void_fun() { - } fn test_void_if_fun(b: bool) { if b { - } else { - } } @@ -82,7 +79,6 @@ fn test_nested_match(x: u32) { 0 => (), 1 => { let _ = 42; - }, _ => (), } @@ -126,7 +122,6 @@ mod issue6501 { fn test_closure() { let _ = || { - }; let _ = || {}; } @@ -179,14 +174,11 @@ async fn async_test_macro_call() -> i32 { } async fn async_test_void_fun() { - } async fn async_test_void_if_fun(b: bool) { if b { - } else { - } } @@ -269,4 +261,15 @@ fn issue9503(x: usize) -> isize { } } +mod issue9416 { + pub fn with_newline() { + let _ = 42; + } + + #[rustfmt::skip] + pub fn oneline() { + let _ = 42; + } +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/needless_return.rs b/src/tools/clippy/tests/ui/needless_return.rs index 114414b5fac..666dc54b76b 100644 --- a/src/tools/clippy/tests/ui/needless_return.rs +++ b/src/tools/clippy/tests/ui/needless_return.rs @@ -269,4 +269,17 @@ fn issue9503(x: usize) -> isize { }; } +mod issue9416 { + pub fn with_newline() { + let _ = 42; + + return; + } + + #[rustfmt::skip] + pub fn oneline() { + let _ = 42; return; + } +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/needless_return.stderr b/src/tools/clippy/tests/ui/needless_return.stderr index 047fb6c2311..a8b5d86cd55 100644 --- a/src/tools/clippy/tests/ui/needless_return.stderr +++ b/src/tools/clippy/tests/ui/needless_return.stderr @@ -72,26 +72,32 @@ LL | return the_answer!(); = help: remove `return` error: unneeded `return` statement - --> $DIR/needless_return.rs:62:5 + --> $DIR/needless_return.rs:61:21 | -LL | return; - | ^^^^^^ +LL | fn test_void_fun() { + | _____________________^ +LL | | return; + | |__________^ | = help: remove `return` error: unneeded `return` statement - --> $DIR/needless_return.rs:67:9 + --> $DIR/needless_return.rs:66:11 | -LL | return; - | ^^^^^^ +LL | if b { + | ___________^ +LL | | return; + | |______________^ | = help: remove `return` error: unneeded `return` statement - --> $DIR/needless_return.rs:69:9 + --> $DIR/needless_return.rs:68:13 | -LL | return; - | ^^^^^^ +LL | } else { + | _____________^ +LL | | return; + | |______________^ | = help: remove `return` @@ -104,10 +110,12 @@ LL | _ => return, = help: replace `return` with a unit value error: unneeded `return` statement - --> $DIR/needless_return.rs:85:13 + --> $DIR/needless_return.rs:84:24 | -LL | return; - | ^^^^^^ +LL | let _ = 42; + | ________________________^ +LL | | return; + | |__________________^ | = help: remove `return` @@ -144,10 +152,12 @@ LL | bar.unwrap_or_else(|_| return) = help: replace `return` with an empty block error: unneeded `return` statement - --> $DIR/needless_return.rs:129:13 + --> $DIR/needless_return.rs:128:21 | -LL | return; - | ^^^^^^ +LL | let _ = || { + | _____________________^ +LL | | return; + | |__________________^ | = help: remove `return` @@ -240,26 +250,32 @@ LL | return the_answer!(); = help: remove `return` error: unneeded `return` statement - --> $DIR/needless_return.rs:182:5 + --> $DIR/needless_return.rs:181:33 | -LL | return; - | ^^^^^^ +LL | async fn async_test_void_fun() { + | _________________________________^ +LL | | return; + | |__________^ | = help: remove `return` error: unneeded `return` statement - --> $DIR/needless_return.rs:187:9 + --> $DIR/needless_return.rs:186:11 | -LL | return; - | ^^^^^^ +LL | if b { + | ___________^ +LL | | return; + | |______________^ | = help: remove `return` error: unneeded `return` statement - --> $DIR/needless_return.rs:189:9 + --> $DIR/needless_return.rs:188:13 | -LL | return; - | ^^^^^^ +LL | } else { + | _____________^ +LL | | return; + | |______________^ | = help: remove `return` @@ -351,5 +367,24 @@ LL | return !*(x as *const isize); | = help: remove `return` -error: aborting due to 44 previous errors +error: unneeded `return` statement + --> $DIR/needless_return.rs:274:20 + | +LL | let _ = 42; + | ____________________^ +LL | | +LL | | return; + | |______________^ + | + = help: remove `return` + +error: unneeded `return` statement + --> $DIR/needless_return.rs:281:20 + | +LL | let _ = 42; return; + | ^^^^^^^ + | + = help: remove `return` + +error: aborting due to 46 previous errors diff --git a/src/tools/clippy/tests/ui/needless_splitn.fixed b/src/tools/clippy/tests/ui/needless_splitn.fixed index 61f5fc4e679..5496031fefa 100644 --- a/src/tools/clippy/tests/ui/needless_splitn.fixed +++ b/src/tools/clippy/tests/ui/needless_splitn.fixed @@ -1,7 +1,6 @@ // run-rustfix // edition:2018 -#![feature(custom_inner_attributes)] #![warn(clippy::needless_splitn)] #![allow(clippy::iter_skip_next, clippy::iter_nth_zero, clippy::manual_split_once)] @@ -40,8 +39,8 @@ fn _question_mark(s: &str) -> Option<()> { Some(()) } +#[clippy::msrv = "1.51"] fn _test_msrv() { - #![clippy::msrv = "1.51"] // `manual_split_once` MSRV shouldn't apply to `needless_splitn` let _ = "key=value".split('=').nth(0).unwrap(); } diff --git a/src/tools/clippy/tests/ui/needless_splitn.rs b/src/tools/clippy/tests/ui/needless_splitn.rs index 71d9a7077fa..35c2465bae1 100644 --- a/src/tools/clippy/tests/ui/needless_splitn.rs +++ b/src/tools/clippy/tests/ui/needless_splitn.rs @@ -1,7 +1,6 @@ // run-rustfix // edition:2018 -#![feature(custom_inner_attributes)] #![warn(clippy::needless_splitn)] #![allow(clippy::iter_skip_next, clippy::iter_nth_zero, clippy::manual_split_once)] @@ -40,8 +39,8 @@ fn _question_mark(s: &str) -> Option<()> { Some(()) } +#[clippy::msrv = "1.51"] fn _test_msrv() { - #![clippy::msrv = "1.51"] // `manual_split_once` MSRV shouldn't apply to `needless_splitn` let _ = "key=value".splitn(2, '=').nth(0).unwrap(); } diff --git a/src/tools/clippy/tests/ui/needless_splitn.stderr b/src/tools/clippy/tests/ui/needless_splitn.stderr index f112b29e7f2..f607d8e1ab5 100644 --- a/src/tools/clippy/tests/ui/needless_splitn.stderr +++ b/src/tools/clippy/tests/ui/needless_splitn.stderr @@ -1,5 +1,5 @@ error: unnecessary use of `splitn` - --> $DIR/needless_splitn.rs:15:13 + --> $DIR/needless_splitn.rs:14:13 | LL | let _ = str.splitn(2, '=').next(); | ^^^^^^^^^^^^^^^^^^ help: try this: `str.split('=')` @@ -7,73 +7,73 @@ LL | let _ = str.splitn(2, '=').next(); = note: `-D clippy::needless-splitn` implied by `-D warnings` error: unnecessary use of `splitn` - --> $DIR/needless_splitn.rs:16:13 + --> $DIR/needless_splitn.rs:15:13 | LL | let _ = str.splitn(2, '=').nth(0); | ^^^^^^^^^^^^^^^^^^ help: try this: `str.split('=')` error: unnecessary use of `splitn` - --> $DIR/needless_splitn.rs:19:18 + --> $DIR/needless_splitn.rs:18:18 | LL | let (_, _) = str.splitn(3, '=').next_tuple().unwrap(); | ^^^^^^^^^^^^^^^^^^ help: try this: `str.split('=')` error: unnecessary use of `rsplitn` - --> $DIR/needless_splitn.rs:22:13 + --> $DIR/needless_splitn.rs:21:13 | LL | let _ = str.rsplitn(2, '=').next(); | ^^^^^^^^^^^^^^^^^^^ help: try this: `str.rsplit('=')` error: unnecessary use of `rsplitn` - --> $DIR/needless_splitn.rs:23:13 + --> $DIR/needless_splitn.rs:22:13 | LL | let _ = str.rsplitn(2, '=').nth(0); | ^^^^^^^^^^^^^^^^^^^ help: try this: `str.rsplit('=')` error: unnecessary use of `rsplitn` - --> $DIR/needless_splitn.rs:26:18 + --> $DIR/needless_splitn.rs:25:18 | LL | let (_, _) = str.rsplitn(3, '=').next_tuple().unwrap(); | ^^^^^^^^^^^^^^^^^^^ help: try this: `str.rsplit('=')` error: unnecessary use of `splitn` - --> $DIR/needless_splitn.rs:28:13 + --> $DIR/needless_splitn.rs:27:13 | LL | let _ = str.splitn(5, '=').next(); | ^^^^^^^^^^^^^^^^^^ help: try this: `str.split('=')` error: unnecessary use of `splitn` - --> $DIR/needless_splitn.rs:29:13 + --> $DIR/needless_splitn.rs:28:13 | LL | let _ = str.splitn(5, '=').nth(3); | ^^^^^^^^^^^^^^^^^^ help: try this: `str.split('=')` error: unnecessary use of `splitn` - --> $DIR/needless_splitn.rs:35:13 + --> $DIR/needless_splitn.rs:34:13 | LL | let _ = s.splitn(2, '=').next()?; | ^^^^^^^^^^^^^^^^ help: try this: `s.split('=')` error: unnecessary use of `splitn` - --> $DIR/needless_splitn.rs:36:13 + --> $DIR/needless_splitn.rs:35:13 | LL | let _ = s.splitn(2, '=').nth(0)?; | ^^^^^^^^^^^^^^^^ help: try this: `s.split('=')` error: unnecessary use of `rsplitn` - --> $DIR/needless_splitn.rs:37:13 + --> $DIR/needless_splitn.rs:36:13 | LL | let _ = s.rsplitn(2, '=').next()?; | ^^^^^^^^^^^^^^^^^ help: try this: `s.rsplit('=')` error: unnecessary use of `rsplitn` - --> $DIR/needless_splitn.rs:38:13 + --> $DIR/needless_splitn.rs:37:13 | LL | let _ = s.rsplitn(2, '=').nth(0)?; | ^^^^^^^^^^^^^^^^^ help: try this: `s.rsplit('=')` error: unnecessary use of `splitn` - --> $DIR/needless_splitn.rs:46:13 + --> $DIR/needless_splitn.rs:45:13 | LL | let _ = "key=value".splitn(2, '=').nth(0).unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split('=')` diff --git a/src/tools/clippy/tests/ui/option_as_ref_deref.fixed b/src/tools/clippy/tests/ui/option_as_ref_deref.fixed index bc376d0d7fb..d124d133faa 100644 --- a/src/tools/clippy/tests/ui/option_as_ref_deref.fixed +++ b/src/tools/clippy/tests/ui/option_as_ref_deref.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused, clippy::redundant_clone)] #![warn(clippy::option_as_ref_deref)] @@ -44,16 +43,14 @@ fn main() { let _ = opt.as_deref(); } +#[clippy::msrv = "1.39"] fn msrv_1_39() { - #![clippy::msrv = "1.39"] - let opt = Some(String::from("123")); let _ = opt.as_ref().map(String::as_str); } +#[clippy::msrv = "1.40"] fn msrv_1_40() { - #![clippy::msrv = "1.40"] - let opt = Some(String::from("123")); let _ = opt.as_deref(); } diff --git a/src/tools/clippy/tests/ui/option_as_ref_deref.rs b/src/tools/clippy/tests/ui/option_as_ref_deref.rs index ba3a2eedc22..86e354c6716 100644 --- a/src/tools/clippy/tests/ui/option_as_ref_deref.rs +++ b/src/tools/clippy/tests/ui/option_as_ref_deref.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused, clippy::redundant_clone)] #![warn(clippy::option_as_ref_deref)] @@ -47,16 +46,14 @@ fn main() { let _ = opt.as_ref().map(std::ops::Deref::deref); } +#[clippy::msrv = "1.39"] fn msrv_1_39() { - #![clippy::msrv = "1.39"] - let opt = Some(String::from("123")); let _ = opt.as_ref().map(String::as_str); } +#[clippy::msrv = "1.40"] fn msrv_1_40() { - #![clippy::msrv = "1.40"] - let opt = Some(String::from("123")); let _ = opt.as_ref().map(String::as_str); } diff --git a/src/tools/clippy/tests/ui/option_as_ref_deref.stderr b/src/tools/clippy/tests/ui/option_as_ref_deref.stderr index 7de8b3b6ba4..e471b56eea8 100644 --- a/src/tools/clippy/tests/ui/option_as_ref_deref.stderr +++ b/src/tools/clippy/tests/ui/option_as_ref_deref.stderr @@ -1,5 +1,5 @@ error: called `.as_ref().map(Deref::deref)` on an Option value. This can be done more directly by calling `opt.clone().as_deref()` instead - --> $DIR/option_as_ref_deref.rs:14:13 + --> $DIR/option_as_ref_deref.rs:13:13 | LL | let _ = opt.clone().as_ref().map(Deref::deref).map(str::len); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `opt.clone().as_deref()` @@ -7,7 +7,7 @@ LL | let _ = opt.clone().as_ref().map(Deref::deref).map(str::len); = note: `-D clippy::option-as-ref-deref` implied by `-D warnings` error: called `.as_ref().map(Deref::deref)` on an Option value. This can be done more directly by calling `opt.clone().as_deref()` instead - --> $DIR/option_as_ref_deref.rs:17:13 + --> $DIR/option_as_ref_deref.rs:16:13 | LL | let _ = opt.clone() | _____________^ @@ -17,97 +17,97 @@ LL | | ) | |_________^ help: try using as_deref instead: `opt.clone().as_deref()` error: called `.as_mut().map(DerefMut::deref_mut)` on an Option value. This can be done more directly by calling `opt.as_deref_mut()` instead - --> $DIR/option_as_ref_deref.rs:23:13 + --> $DIR/option_as_ref_deref.rs:22:13 | LL | let _ = opt.as_mut().map(DerefMut::deref_mut); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref_mut instead: `opt.as_deref_mut()` error: called `.as_ref().map(String::as_str)` on an Option value. This can be done more directly by calling `opt.as_deref()` instead - --> $DIR/option_as_ref_deref.rs:25:13 + --> $DIR/option_as_ref_deref.rs:24:13 | LL | let _ = opt.as_ref().map(String::as_str); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `opt.as_deref()` error: called `.as_ref().map(|x| x.as_str())` on an Option value. This can be done more directly by calling `opt.as_deref()` instead - --> $DIR/option_as_ref_deref.rs:26:13 + --> $DIR/option_as_ref_deref.rs:25:13 | LL | let _ = opt.as_ref().map(|x| x.as_str()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `opt.as_deref()` error: called `.as_mut().map(String::as_mut_str)` on an Option value. This can be done more directly by calling `opt.as_deref_mut()` instead - --> $DIR/option_as_ref_deref.rs:27:13 + --> $DIR/option_as_ref_deref.rs:26:13 | LL | let _ = opt.as_mut().map(String::as_mut_str); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref_mut instead: `opt.as_deref_mut()` error: called `.as_mut().map(|x| x.as_mut_str())` on an Option value. This can be done more directly by calling `opt.as_deref_mut()` instead - --> $DIR/option_as_ref_deref.rs:28:13 + --> $DIR/option_as_ref_deref.rs:27:13 | LL | let _ = opt.as_mut().map(|x| x.as_mut_str()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref_mut instead: `opt.as_deref_mut()` error: called `.as_ref().map(CString::as_c_str)` on an Option value. This can be done more directly by calling `Some(CString::new(vec![]).unwrap()).as_deref()` instead - --> $DIR/option_as_ref_deref.rs:29:13 + --> $DIR/option_as_ref_deref.rs:28:13 | LL | let _ = Some(CString::new(vec![]).unwrap()).as_ref().map(CString::as_c_str); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `Some(CString::new(vec![]).unwrap()).as_deref()` error: called `.as_ref().map(OsString::as_os_str)` on an Option value. This can be done more directly by calling `Some(OsString::new()).as_deref()` instead - --> $DIR/option_as_ref_deref.rs:30:13 + --> $DIR/option_as_ref_deref.rs:29:13 | LL | let _ = Some(OsString::new()).as_ref().map(OsString::as_os_str); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `Some(OsString::new()).as_deref()` error: called `.as_ref().map(PathBuf::as_path)` on an Option value. This can be done more directly by calling `Some(PathBuf::new()).as_deref()` instead - --> $DIR/option_as_ref_deref.rs:31:13 + --> $DIR/option_as_ref_deref.rs:30:13 | LL | let _ = Some(PathBuf::new()).as_ref().map(PathBuf::as_path); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `Some(PathBuf::new()).as_deref()` error: called `.as_ref().map(Vec::as_slice)` on an Option value. This can be done more directly by calling `Some(Vec::<()>::new()).as_deref()` instead - --> $DIR/option_as_ref_deref.rs:32:13 + --> $DIR/option_as_ref_deref.rs:31:13 | LL | let _ = Some(Vec::<()>::new()).as_ref().map(Vec::as_slice); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `Some(Vec::<()>::new()).as_deref()` error: called `.as_mut().map(Vec::as_mut_slice)` on an Option value. This can be done more directly by calling `Some(Vec::<()>::new()).as_deref_mut()` instead - --> $DIR/option_as_ref_deref.rs:33:13 + --> $DIR/option_as_ref_deref.rs:32:13 | LL | let _ = Some(Vec::<()>::new()).as_mut().map(Vec::as_mut_slice); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref_mut instead: `Some(Vec::<()>::new()).as_deref_mut()` error: called `.as_ref().map(|x| x.deref())` on an Option value. This can be done more directly by calling `opt.as_deref()` instead - --> $DIR/option_as_ref_deref.rs:35:13 + --> $DIR/option_as_ref_deref.rs:34:13 | LL | let _ = opt.as_ref().map(|x| x.deref()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `opt.as_deref()` error: called `.as_mut().map(|x| x.deref_mut())` on an Option value. This can be done more directly by calling `opt.clone().as_deref_mut()` instead - --> $DIR/option_as_ref_deref.rs:36:13 + --> $DIR/option_as_ref_deref.rs:35:13 | LL | let _ = opt.clone().as_mut().map(|x| x.deref_mut()).map(|x| x.len()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref_mut instead: `opt.clone().as_deref_mut()` error: called `.as_ref().map(|x| &**x)` on an Option value. This can be done more directly by calling `opt.as_deref()` instead - --> $DIR/option_as_ref_deref.rs:43:13 + --> $DIR/option_as_ref_deref.rs:42:13 | LL | let _ = opt.as_ref().map(|x| &**x); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `opt.as_deref()` error: called `.as_mut().map(|x| &mut **x)` on an Option value. This can be done more directly by calling `opt.as_deref_mut()` instead - --> $DIR/option_as_ref_deref.rs:44:13 + --> $DIR/option_as_ref_deref.rs:43:13 | LL | let _ = opt.as_mut().map(|x| &mut **x); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref_mut instead: `opt.as_deref_mut()` error: called `.as_ref().map(std::ops::Deref::deref)` on an Option value. This can be done more directly by calling `opt.as_deref()` instead - --> $DIR/option_as_ref_deref.rs:47:13 + --> $DIR/option_as_ref_deref.rs:46:13 | LL | let _ = opt.as_ref().map(std::ops::Deref::deref); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `opt.as_deref()` error: called `.as_ref().map(String::as_str)` on an Option value. This can be done more directly by calling `opt.as_deref()` instead - --> $DIR/option_as_ref_deref.rs:61:13 + --> $DIR/option_as_ref_deref.rs:58:13 | LL | let _ = opt.as_ref().map(String::as_str); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using as_deref instead: `opt.as_deref()` diff --git a/src/tools/clippy/tests/ui/ptr_as_ptr.fixed b/src/tools/clippy/tests/ui/ptr_as_ptr.fixed index bea6be66a8e..df36a9b842b 100644 --- a/src/tools/clippy/tests/ui/ptr_as_ptr.fixed +++ b/src/tools/clippy/tests/ui/ptr_as_ptr.fixed @@ -2,7 +2,6 @@ // aux-build:macro_rules.rs #![warn(clippy::ptr_as_ptr)] -#![feature(custom_inner_attributes)] extern crate macro_rules; @@ -45,8 +44,8 @@ fn main() { let _ = macro_rules::ptr_as_ptr_cast!(ptr); } +#[clippy::msrv = "1.37"] fn _msrv_1_37() { - #![clippy::msrv = "1.37"] let ptr: *const u32 = &42_u32; let mut_ptr: *mut u32 = &mut 42_u32; @@ -55,8 +54,8 @@ fn _msrv_1_37() { let _ = mut_ptr as *mut i32; } +#[clippy::msrv = "1.38"] fn _msrv_1_38() { - #![clippy::msrv = "1.38"] let ptr: *const u32 = &42_u32; let mut_ptr: *mut u32 = &mut 42_u32; diff --git a/src/tools/clippy/tests/ui/ptr_as_ptr.rs b/src/tools/clippy/tests/ui/ptr_as_ptr.rs index ca2616b0069..302c66462d9 100644 --- a/src/tools/clippy/tests/ui/ptr_as_ptr.rs +++ b/src/tools/clippy/tests/ui/ptr_as_ptr.rs @@ -2,7 +2,6 @@ // aux-build:macro_rules.rs #![warn(clippy::ptr_as_ptr)] -#![feature(custom_inner_attributes)] extern crate macro_rules; @@ -45,8 +44,8 @@ fn main() { let _ = macro_rules::ptr_as_ptr_cast!(ptr); } +#[clippy::msrv = "1.37"] fn _msrv_1_37() { - #![clippy::msrv = "1.37"] let ptr: *const u32 = &42_u32; let mut_ptr: *mut u32 = &mut 42_u32; @@ -55,8 +54,8 @@ fn _msrv_1_37() { let _ = mut_ptr as *mut i32; } +#[clippy::msrv = "1.38"] fn _msrv_1_38() { - #![clippy::msrv = "1.38"] let ptr: *const u32 = &42_u32; let mut_ptr: *mut u32 = &mut 42_u32; diff --git a/src/tools/clippy/tests/ui/ptr_as_ptr.stderr b/src/tools/clippy/tests/ui/ptr_as_ptr.stderr index c58c55cfd83..a68e1cab6d3 100644 --- a/src/tools/clippy/tests/ui/ptr_as_ptr.stderr +++ b/src/tools/clippy/tests/ui/ptr_as_ptr.stderr @@ -1,5 +1,5 @@ error: `as` casting between raw pointers without changing its mutability - --> $DIR/ptr_as_ptr.rs:19:13 + --> $DIR/ptr_as_ptr.rs:18:13 | LL | let _ = ptr as *const i32; | ^^^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `ptr.cast::<i32>()` @@ -7,31 +7,31 @@ LL | let _ = ptr as *const i32; = note: `-D clippy::ptr-as-ptr` implied by `-D warnings` error: `as` casting between raw pointers without changing its mutability - --> $DIR/ptr_as_ptr.rs:20:13 + --> $DIR/ptr_as_ptr.rs:19:13 | LL | let _ = mut_ptr as *mut i32; | ^^^^^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `mut_ptr.cast::<i32>()` error: `as` casting between raw pointers without changing its mutability - --> $DIR/ptr_as_ptr.rs:25:17 + --> $DIR/ptr_as_ptr.rs:24:17 | LL | let _ = *ptr_ptr as *const i32; | ^^^^^^^^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `(*ptr_ptr).cast::<i32>()` error: `as` casting between raw pointers without changing its mutability - --> $DIR/ptr_as_ptr.rs:38:25 + --> $DIR/ptr_as_ptr.rs:37:25 | LL | let _: *const i32 = ptr as *const _; | ^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `ptr.cast()` error: `as` casting between raw pointers without changing its mutability - --> $DIR/ptr_as_ptr.rs:39:23 + --> $DIR/ptr_as_ptr.rs:38:23 | LL | let _: *mut i32 = mut_ptr as _; | ^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `mut_ptr.cast()` error: `as` casting between raw pointers without changing its mutability - --> $DIR/ptr_as_ptr.rs:11:9 + --> $DIR/ptr_as_ptr.rs:10:9 | LL | $ptr as *const i32 | ^^^^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `$ptr.cast::<i32>()` @@ -42,13 +42,13 @@ LL | let _ = cast_it!(ptr); = note: this error originates in the macro `cast_it` (in Nightly builds, run with -Z macro-backtrace for more info) error: `as` casting between raw pointers without changing its mutability - --> $DIR/ptr_as_ptr.rs:63:13 + --> $DIR/ptr_as_ptr.rs:62:13 | LL | let _ = ptr as *const i32; | ^^^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `ptr.cast::<i32>()` error: `as` casting between raw pointers without changing its mutability - --> $DIR/ptr_as_ptr.rs:64:13 + --> $DIR/ptr_as_ptr.rs:63:13 | LL | let _ = mut_ptr as *mut i32; | ^^^^^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `mut_ptr.cast::<i32>()` diff --git a/src/tools/clippy/tests/ui/range_contains.fixed b/src/tools/clippy/tests/ui/range_contains.fixed index 824f00cb99e..4923731fe45 100644 --- a/src/tools/clippy/tests/ui/range_contains.fixed +++ b/src/tools/clippy/tests/ui/range_contains.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::manual_range_contains)] #![allow(unused)] #![allow(clippy::no_effect)] @@ -65,16 +64,14 @@ pub const fn in_range(a: i32) -> bool { 3 <= a && a <= 20 } +#[clippy::msrv = "1.34"] fn msrv_1_34() { - #![clippy::msrv = "1.34"] - let x = 5; x >= 8 && x < 34; } +#[clippy::msrv = "1.35"] fn msrv_1_35() { - #![clippy::msrv = "1.35"] - let x = 5; (8..35).contains(&x); } diff --git a/src/tools/clippy/tests/ui/range_contains.rs b/src/tools/clippy/tests/ui/range_contains.rs index df925eeadfe..d623ccb5da6 100644 --- a/src/tools/clippy/tests/ui/range_contains.rs +++ b/src/tools/clippy/tests/ui/range_contains.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::manual_range_contains)] #![allow(unused)] #![allow(clippy::no_effect)] @@ -65,16 +64,14 @@ pub const fn in_range(a: i32) -> bool { 3 <= a && a <= 20 } +#[clippy::msrv = "1.34"] fn msrv_1_34() { - #![clippy::msrv = "1.34"] - let x = 5; x >= 8 && x < 34; } +#[clippy::msrv = "1.35"] fn msrv_1_35() { - #![clippy::msrv = "1.35"] - let x = 5; x >= 8 && x < 35; } diff --git a/src/tools/clippy/tests/ui/range_contains.stderr b/src/tools/clippy/tests/ui/range_contains.stderr index 9689e665b05..ea34023a466 100644 --- a/src/tools/clippy/tests/ui/range_contains.stderr +++ b/src/tools/clippy/tests/ui/range_contains.stderr @@ -1,5 +1,5 @@ error: manual `Range::contains` implementation - --> $DIR/range_contains.rs:14:5 + --> $DIR/range_contains.rs:13:5 | LL | x >= 8 && x < 12; | ^^^^^^^^^^^^^^^^ help: use: `(8..12).contains(&x)` @@ -7,121 +7,121 @@ LL | x >= 8 && x < 12; = note: `-D clippy::manual-range-contains` implied by `-D warnings` error: manual `Range::contains` implementation - --> $DIR/range_contains.rs:15:5 + --> $DIR/range_contains.rs:14:5 | LL | x < 42 && x >= 21; | ^^^^^^^^^^^^^^^^^ help: use: `(21..42).contains(&x)` error: manual `Range::contains` implementation - --> $DIR/range_contains.rs:16:5 + --> $DIR/range_contains.rs:15:5 | LL | 100 > x && 1 <= x; | ^^^^^^^^^^^^^^^^^ help: use: `(1..100).contains(&x)` error: manual `RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:19:5 + --> $DIR/range_contains.rs:18:5 | LL | x >= 9 && x <= 99; | ^^^^^^^^^^^^^^^^^ help: use: `(9..=99).contains(&x)` error: manual `RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:20:5 + --> $DIR/range_contains.rs:19:5 | LL | x <= 33 && x >= 1; | ^^^^^^^^^^^^^^^^^ help: use: `(1..=33).contains(&x)` error: manual `RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:21:5 + --> $DIR/range_contains.rs:20:5 | LL | 999 >= x && 1 <= x; | ^^^^^^^^^^^^^^^^^^ help: use: `(1..=999).contains(&x)` error: manual `!Range::contains` implementation - --> $DIR/range_contains.rs:24:5 + --> $DIR/range_contains.rs:23:5 | LL | x < 8 || x >= 12; | ^^^^^^^^^^^^^^^^ help: use: `!(8..12).contains(&x)` error: manual `!Range::contains` implementation - --> $DIR/range_contains.rs:25:5 + --> $DIR/range_contains.rs:24:5 | LL | x >= 42 || x < 21; | ^^^^^^^^^^^^^^^^^ help: use: `!(21..42).contains(&x)` error: manual `!Range::contains` implementation - --> $DIR/range_contains.rs:26:5 + --> $DIR/range_contains.rs:25:5 | LL | 100 <= x || 1 > x; | ^^^^^^^^^^^^^^^^^ help: use: `!(1..100).contains(&x)` error: manual `!RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:29:5 + --> $DIR/range_contains.rs:28:5 | LL | x < 9 || x > 99; | ^^^^^^^^^^^^^^^ help: use: `!(9..=99).contains(&x)` error: manual `!RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:30:5 + --> $DIR/range_contains.rs:29:5 | LL | x > 33 || x < 1; | ^^^^^^^^^^^^^^^ help: use: `!(1..=33).contains(&x)` error: manual `!RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:31:5 + --> $DIR/range_contains.rs:30:5 | LL | 999 < x || 1 > x; | ^^^^^^^^^^^^^^^^ help: use: `!(1..=999).contains(&x)` error: manual `Range::contains` implementation - --> $DIR/range_contains.rs:46:5 + --> $DIR/range_contains.rs:45:5 | LL | y >= 0. && y < 1.; | ^^^^^^^^^^^^^^^^^ help: use: `(0. ..1.).contains(&y)` error: manual `!RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:47:5 + --> $DIR/range_contains.rs:46:5 | LL | y < 0. || y > 1.; | ^^^^^^^^^^^^^^^^ help: use: `!(0. ..=1.).contains(&y)` error: manual `RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:50:5 + --> $DIR/range_contains.rs:49:5 | LL | x >= -10 && x <= 10; | ^^^^^^^^^^^^^^^^^^^ help: use: `(-10..=10).contains(&x)` error: manual `RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:52:5 + --> $DIR/range_contains.rs:51:5 | LL | y >= -3. && y <= 3.; | ^^^^^^^^^^^^^^^^^^^ help: use: `(-3. ..=3.).contains(&y)` error: manual `RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:57:30 + --> $DIR/range_contains.rs:56:30 | LL | (x >= 0) && (x <= 10) && (z >= 0) && (z <= 10); | ^^^^^^^^^^^^^^^^^^^^^ help: use: `(0..=10).contains(&z)` error: manual `RangeInclusive::contains` implementation - --> $DIR/range_contains.rs:57:5 + --> $DIR/range_contains.rs:56:5 | LL | (x >= 0) && (x <= 10) && (z >= 0) && (z <= 10); | ^^^^^^^^^^^^^^^^^^^^^ help: use: `(0..=10).contains(&x)` error: manual `!Range::contains` implementation - --> $DIR/range_contains.rs:58:29 + --> $DIR/range_contains.rs:57:29 | LL | (x < 0) || (x >= 10) || (z < 0) || (z >= 10); | ^^^^^^^^^^^^^^^^^^^^ help: use: `!(0..10).contains(&z)` error: manual `!Range::contains` implementation - --> $DIR/range_contains.rs:58:5 + --> $DIR/range_contains.rs:57:5 | LL | (x < 0) || (x >= 10) || (z < 0) || (z >= 10); | ^^^^^^^^^^^^^^^^^^^^ help: use: `!(0..10).contains(&x)` error: manual `Range::contains` implementation - --> $DIR/range_contains.rs:79:5 + --> $DIR/range_contains.rs:76:5 | LL | x >= 8 && x < 35; | ^^^^^^^^^^^^^^^^ help: use: `(8..35).contains(&x)` diff --git a/src/tools/clippy/tests/ui/redundant_closure_call_fixable.fixed b/src/tools/clippy/tests/ui/redundant_closure_call_fixable.fixed index 7cd687c95a0..c0e49ff4caa 100644 --- a/src/tools/clippy/tests/ui/redundant_closure_call_fixable.fixed +++ b/src/tools/clippy/tests/ui/redundant_closure_call_fixable.fixed @@ -25,4 +25,16 @@ fn main() { x * y }; let d = async { something().await }; + + macro_rules! m { + () => { + 0 + }; + } + macro_rules! m2 { + () => { + m!() + }; + } + m2!(); } diff --git a/src/tools/clippy/tests/ui/redundant_closure_call_fixable.rs b/src/tools/clippy/tests/ui/redundant_closure_call_fixable.rs index 37e4d223864..9e6e54348a8 100644 --- a/src/tools/clippy/tests/ui/redundant_closure_call_fixable.rs +++ b/src/tools/clippy/tests/ui/redundant_closure_call_fixable.rs @@ -25,4 +25,16 @@ fn main() { x * y })(); let d = (async || something().await)(); + + macro_rules! m { + () => { + (|| 0)() + }; + } + macro_rules! m2 { + () => { + (|| m!())() + }; + } + m2!(); } diff --git a/src/tools/clippy/tests/ui/redundant_closure_call_fixable.stderr b/src/tools/clippy/tests/ui/redundant_closure_call_fixable.stderr index 56a8e57c0c3..d71bcba2a82 100644 --- a/src/tools/clippy/tests/ui/redundant_closure_call_fixable.stderr +++ b/src/tools/clippy/tests/ui/redundant_closure_call_fixable.stderr @@ -52,5 +52,27 @@ error: try not to call a closure in the expression where it is declared LL | let d = (async || something().await)(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try doing something like: `async { something().await }` -error: aborting due to 4 previous errors +error: try not to call a closure in the expression where it is declared + --> $DIR/redundant_closure_call_fixable.rs:36:13 + | +LL | (|| m!())() + | ^^^^^^^^^^^ help: try doing something like: `m!()` +... +LL | m2!(); + | ----- in this macro invocation + | + = note: this error originates in the macro `m2` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: try not to call a closure in the expression where it is declared + --> $DIR/redundant_closure_call_fixable.rs:31:13 + | +LL | (|| 0)() + | ^^^^^^^^ help: try doing something like: `0` +... +LL | m2!(); + | ----- in this macro invocation + | + = note: this error originates in the macro `m` which comes from the expansion of the macro `m2` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 6 previous errors diff --git a/src/tools/clippy/tests/ui/redundant_field_names.fixed b/src/tools/clippy/tests/ui/redundant_field_names.fixed index 34ab552cb1d..ec7f8ae923a 100644 --- a/src/tools/clippy/tests/ui/redundant_field_names.fixed +++ b/src/tools/clippy/tests/ui/redundant_field_names.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::redundant_field_names)] #![allow(clippy::no_effect, dead_code, unused_variables)] @@ -72,16 +71,14 @@ fn issue_3476() { S { foo: foo::<i32> }; } +#[clippy::msrv = "1.16"] fn msrv_1_16() { - #![clippy::msrv = "1.16"] - let start = 0; let _ = RangeFrom { start: start }; } +#[clippy::msrv = "1.17"] fn msrv_1_17() { - #![clippy::msrv = "1.17"] - let start = 0; let _ = RangeFrom { start }; } diff --git a/src/tools/clippy/tests/ui/redundant_field_names.rs b/src/tools/clippy/tests/ui/redundant_field_names.rs index a051b1f96f0..73122016cf6 100644 --- a/src/tools/clippy/tests/ui/redundant_field_names.rs +++ b/src/tools/clippy/tests/ui/redundant_field_names.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::redundant_field_names)] #![allow(clippy::no_effect, dead_code, unused_variables)] @@ -72,16 +71,14 @@ fn issue_3476() { S { foo: foo::<i32> }; } +#[clippy::msrv = "1.16"] fn msrv_1_16() { - #![clippy::msrv = "1.16"] - let start = 0; let _ = RangeFrom { start: start }; } +#[clippy::msrv = "1.17"] fn msrv_1_17() { - #![clippy::msrv = "1.17"] - let start = 0; let _ = RangeFrom { start: start }; } diff --git a/src/tools/clippy/tests/ui/redundant_field_names.stderr b/src/tools/clippy/tests/ui/redundant_field_names.stderr index 8b82e062b93..00a72c50cf7 100644 --- a/src/tools/clippy/tests/ui/redundant_field_names.stderr +++ b/src/tools/clippy/tests/ui/redundant_field_names.stderr @@ -1,5 +1,5 @@ error: redundant field names in struct initialization - --> $DIR/redundant_field_names.rs:36:9 + --> $DIR/redundant_field_names.rs:35:9 | LL | gender: gender, | ^^^^^^^^^^^^^^ help: replace it with: `gender` @@ -7,43 +7,43 @@ LL | gender: gender, = note: `-D clippy::redundant-field-names` implied by `-D warnings` error: redundant field names in struct initialization - --> $DIR/redundant_field_names.rs:37:9 + --> $DIR/redundant_field_names.rs:36:9 | LL | age: age, | ^^^^^^^^ help: replace it with: `age` error: redundant field names in struct initialization - --> $DIR/redundant_field_names.rs:58:25 + --> $DIR/redundant_field_names.rs:57:25 | LL | let _ = RangeFrom { start: start }; | ^^^^^^^^^^^^ help: replace it with: `start` error: redundant field names in struct initialization - --> $DIR/redundant_field_names.rs:59:23 + --> $DIR/redundant_field_names.rs:58:23 | LL | let _ = RangeTo { end: end }; | ^^^^^^^^ help: replace it with: `end` error: redundant field names in struct initialization - --> $DIR/redundant_field_names.rs:60:21 + --> $DIR/redundant_field_names.rs:59:21 | LL | let _ = Range { start: start, end: end }; | ^^^^^^^^^^^^ help: replace it with: `start` error: redundant field names in struct initialization - --> $DIR/redundant_field_names.rs:60:35 + --> $DIR/redundant_field_names.rs:59:35 | LL | let _ = Range { start: start, end: end }; | ^^^^^^^^ help: replace it with: `end` error: redundant field names in struct initialization - --> $DIR/redundant_field_names.rs:62:32 + --> $DIR/redundant_field_names.rs:61:32 | LL | let _ = RangeToInclusive { end: end }; | ^^^^^^^^ help: replace it with: `end` error: redundant field names in struct initialization - --> $DIR/redundant_field_names.rs:86:25 + --> $DIR/redundant_field_names.rs:83:25 | LL | let _ = RangeFrom { start: start }; | ^^^^^^^^^^^^ help: replace it with: `start` diff --git a/src/tools/clippy/tests/ui/redundant_static_lifetimes.fixed b/src/tools/clippy/tests/ui/redundant_static_lifetimes.fixed index 42110dbe81e..4c5846fe837 100644 --- a/src/tools/clippy/tests/ui/redundant_static_lifetimes.fixed +++ b/src/tools/clippy/tests/ui/redundant_static_lifetimes.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused)] #[derive(Debug)] @@ -56,14 +55,12 @@ impl Bar for Foo { const TRAIT_VAR: &'static str = "foo"; } +#[clippy::msrv = "1.16"] fn msrv_1_16() { - #![clippy::msrv = "1.16"] - static V: &'static u8 = &16; } +#[clippy::msrv = "1.17"] fn msrv_1_17() { - #![clippy::msrv = "1.17"] - static V: &u8 = &17; } diff --git a/src/tools/clippy/tests/ui/redundant_static_lifetimes.rs b/src/tools/clippy/tests/ui/redundant_static_lifetimes.rs index bc5200bc862..64a66be1a83 100644 --- a/src/tools/clippy/tests/ui/redundant_static_lifetimes.rs +++ b/src/tools/clippy/tests/ui/redundant_static_lifetimes.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![allow(unused)] #[derive(Debug)] @@ -56,14 +55,12 @@ impl Bar for Foo { const TRAIT_VAR: &'static str = "foo"; } +#[clippy::msrv = "1.16"] fn msrv_1_16() { - #![clippy::msrv = "1.16"] - static V: &'static u8 = &16; } +#[clippy::msrv = "1.17"] fn msrv_1_17() { - #![clippy::msrv = "1.17"] - static V: &'static u8 = &17; } diff --git a/src/tools/clippy/tests/ui/redundant_static_lifetimes.stderr b/src/tools/clippy/tests/ui/redundant_static_lifetimes.stderr index 735113460d2..0938ebf783f 100644 --- a/src/tools/clippy/tests/ui/redundant_static_lifetimes.stderr +++ b/src/tools/clippy/tests/ui/redundant_static_lifetimes.stderr @@ -1,5 +1,5 @@ error: constants have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:9:17 + --> $DIR/redundant_static_lifetimes.rs:8:17 | LL | const VAR_ONE: &'static str = "Test constant #1"; // ERROR Consider removing 'static. | -^^^^^^^---- help: consider removing `'static`: `&str` @@ -7,97 +7,97 @@ LL | const VAR_ONE: &'static str = "Test constant #1"; // ERROR Consider removin = note: `-D clippy::redundant-static-lifetimes` implied by `-D warnings` error: constants have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:13:21 + --> $DIR/redundant_static_lifetimes.rs:12:21 | LL | const VAR_THREE: &[&'static str] = &["one", "two"]; // ERROR Consider removing 'static | -^^^^^^^---- help: consider removing `'static`: `&str` error: constants have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:15:32 + --> $DIR/redundant_static_lifetimes.rs:14:32 | LL | const VAR_FOUR: (&str, (&str, &'static str), &'static str) = ("on", ("th", "th"), "on"); // ERROR Consider removing 'static | -^^^^^^^---- help: consider removing `'static`: `&str` error: constants have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:15:47 + --> $DIR/redundant_static_lifetimes.rs:14:47 | LL | const VAR_FOUR: (&str, (&str, &'static str), &'static str) = ("on", ("th", "th"), "on"); // ERROR Consider removing 'static | -^^^^^^^---- help: consider removing `'static`: `&str` error: constants have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:17:17 + --> $DIR/redundant_static_lifetimes.rs:16:17 | LL | const VAR_SIX: &'static u8 = &5; | -^^^^^^^--- help: consider removing `'static`: `&u8` error: constants have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:19:20 + --> $DIR/redundant_static_lifetimes.rs:18:20 | LL | const VAR_HEIGHT: &'static Foo = &Foo {}; | -^^^^^^^---- help: consider removing `'static`: `&Foo` error: constants have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:21:19 + --> $DIR/redundant_static_lifetimes.rs:20:19 | LL | const VAR_SLICE: &'static [u8] = b"Test constant #1"; // ERROR Consider removing 'static. | -^^^^^^^----- help: consider removing `'static`: `&[u8]` error: constants have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:23:19 + --> $DIR/redundant_static_lifetimes.rs:22:19 | LL | const VAR_TUPLE: &'static (u8, u8) = &(1, 2); // ERROR Consider removing 'static. | -^^^^^^^--------- help: consider removing `'static`: `&(u8, u8)` error: constants have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:25:19 + --> $DIR/redundant_static_lifetimes.rs:24:19 | LL | const VAR_ARRAY: &'static [u8; 1] = b"T"; // ERROR Consider removing 'static. | -^^^^^^^-------- help: consider removing `'static`: `&[u8; 1]` error: statics have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:27:25 + --> $DIR/redundant_static_lifetimes.rs:26:25 | LL | static STATIC_VAR_ONE: &'static str = "Test static #1"; // ERROR Consider removing 'static. | -^^^^^^^---- help: consider removing `'static`: `&str` error: statics have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:31:29 + --> $DIR/redundant_static_lifetimes.rs:30:29 | LL | static STATIC_VAR_THREE: &[&'static str] = &["one", "two"]; // ERROR Consider removing 'static | -^^^^^^^---- help: consider removing `'static`: `&str` error: statics have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:33:25 + --> $DIR/redundant_static_lifetimes.rs:32:25 | LL | static STATIC_VAR_SIX: &'static u8 = &5; | -^^^^^^^--- help: consider removing `'static`: `&u8` error: statics have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:35:28 + --> $DIR/redundant_static_lifetimes.rs:34:28 | LL | static STATIC_VAR_HEIGHT: &'static Foo = &Foo {}; | -^^^^^^^---- help: consider removing `'static`: `&Foo` error: statics have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:37:27 + --> $DIR/redundant_static_lifetimes.rs:36:27 | LL | static STATIC_VAR_SLICE: &'static [u8] = b"Test static #3"; // ERROR Consider removing 'static. | -^^^^^^^----- help: consider removing `'static`: `&[u8]` error: statics have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:39:27 + --> $DIR/redundant_static_lifetimes.rs:38:27 | LL | static STATIC_VAR_TUPLE: &'static (u8, u8) = &(1, 2); // ERROR Consider removing 'static. | -^^^^^^^--------- help: consider removing `'static`: `&(u8, u8)` error: statics have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:41:27 + --> $DIR/redundant_static_lifetimes.rs:40:27 | LL | static STATIC_VAR_ARRAY: &'static [u8; 1] = b"T"; // ERROR Consider removing 'static. | -^^^^^^^-------- help: consider removing `'static`: `&[u8; 1]` error: statics have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:68:16 + --> $DIR/redundant_static_lifetimes.rs:65:16 | LL | static V: &'static u8 = &17; | -^^^^^^^--- help: consider removing `'static`: `&u8` diff --git a/src/tools/clippy/tests/ui/result_large_err.rs b/src/tools/clippy/tests/ui/result_large_err.rs index 9dd27d6dc01..1c12cebfd97 100644 --- a/src/tools/clippy/tests/ui/result_large_err.rs +++ b/src/tools/clippy/tests/ui/result_large_err.rs @@ -108,4 +108,10 @@ pub fn array_error<T, U>() -> Result<(), ArrayError<(i32, T), U>> { Ok(()) } +// Issue #10005 +enum Empty {} +fn _empty_error() -> Result<(), Empty> { + Ok(()) +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/seek_from_current.fixed b/src/tools/clippy/tests/ui/seek_from_current.fixed index 4b5303324bc..1309c91b81c 100644 --- a/src/tools/clippy/tests/ui/seek_from_current.fixed +++ b/src/tools/clippy/tests/ui/seek_from_current.fixed @@ -1,12 +1,11 @@ // run-rustfix #![warn(clippy::seek_from_current)] -#![feature(custom_inner_attributes)] use std::fs::File; use std::io::{self, Seek, SeekFrom, Write}; +#[clippy::msrv = "1.50"] fn _msrv_1_50() -> io::Result<()> { - #![clippy::msrv = "1.50"] let mut f = File::create("foo.txt")?; f.write_all(b"Hi!")?; f.seek(SeekFrom::Current(0))?; @@ -14,8 +13,8 @@ fn _msrv_1_50() -> io::Result<()> { Ok(()) } +#[clippy::msrv = "1.51"] fn _msrv_1_51() -> io::Result<()> { - #![clippy::msrv = "1.51"] let mut f = File::create("foo.txt")?; f.write_all(b"Hi!")?; f.stream_position()?; diff --git a/src/tools/clippy/tests/ui/seek_from_current.rs b/src/tools/clippy/tests/ui/seek_from_current.rs index f93639261a1..5d9b1424cf6 100644 --- a/src/tools/clippy/tests/ui/seek_from_current.rs +++ b/src/tools/clippy/tests/ui/seek_from_current.rs @@ -1,12 +1,11 @@ // run-rustfix #![warn(clippy::seek_from_current)] -#![feature(custom_inner_attributes)] use std::fs::File; use std::io::{self, Seek, SeekFrom, Write}; +#[clippy::msrv = "1.50"] fn _msrv_1_50() -> io::Result<()> { - #![clippy::msrv = "1.50"] let mut f = File::create("foo.txt")?; f.write_all(b"Hi!")?; f.seek(SeekFrom::Current(0))?; @@ -14,8 +13,8 @@ fn _msrv_1_50() -> io::Result<()> { Ok(()) } +#[clippy::msrv = "1.51"] fn _msrv_1_51() -> io::Result<()> { - #![clippy::msrv = "1.51"] let mut f = File::create("foo.txt")?; f.write_all(b"Hi!")?; f.seek(SeekFrom::Current(0))?; diff --git a/src/tools/clippy/tests/ui/seek_from_current.stderr b/src/tools/clippy/tests/ui/seek_from_current.stderr index db1125b53cd..c079f361192 100644 --- a/src/tools/clippy/tests/ui/seek_from_current.stderr +++ b/src/tools/clippy/tests/ui/seek_from_current.stderr @@ -1,5 +1,5 @@ error: using `SeekFrom::Current` to start from current position - --> $DIR/seek_from_current.rs:21:5 + --> $DIR/seek_from_current.rs:20:5 | LL | f.seek(SeekFrom::Current(0))?; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `f.stream_position()` diff --git a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.fixed b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.fixed index 464b6cdef63..9d0d1124c46 100644 --- a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.fixed +++ b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.fixed @@ -1,6 +1,5 @@ // run-rustfix #![allow(unused)] -#![feature(custom_inner_attributes)] #![warn(clippy::seek_to_start_instead_of_rewind)] use std::fs::OpenOptions; @@ -94,9 +93,8 @@ fn main() { assert_eq!(&buf, hello); } +#[clippy::msrv = "1.54"] fn msrv_1_54() { - #![clippy::msrv = "1.54"] - let mut f = OpenOptions::new() .write(true) .read(true) @@ -115,9 +113,8 @@ fn msrv_1_54() { assert_eq!(&buf, hello); } +#[clippy::msrv = "1.55"] fn msrv_1_55() { - #![clippy::msrv = "1.55"] - let mut f = OpenOptions::new() .write(true) .read(true) diff --git a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.rs b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.rs index 68e09bd7c1f..c5bc57cc3a7 100644 --- a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.rs +++ b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.rs @@ -1,6 +1,5 @@ // run-rustfix #![allow(unused)] -#![feature(custom_inner_attributes)] #![warn(clippy::seek_to_start_instead_of_rewind)] use std::fs::OpenOptions; @@ -94,9 +93,8 @@ fn main() { assert_eq!(&buf, hello); } +#[clippy::msrv = "1.54"] fn msrv_1_54() { - #![clippy::msrv = "1.54"] - let mut f = OpenOptions::new() .write(true) .read(true) @@ -115,9 +113,8 @@ fn msrv_1_54() { assert_eq!(&buf, hello); } +#[clippy::msrv = "1.55"] fn msrv_1_55() { - #![clippy::msrv = "1.55"] - let mut f = OpenOptions::new() .write(true) .read(true) diff --git a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.stderr b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.stderr index de0eec5d909..6cce025359f 100644 --- a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.stderr +++ b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.stderr @@ -1,5 +1,5 @@ error: used `seek` to go to the start of the stream - --> $DIR/seek_to_start_instead_of_rewind.rs:54:7 + --> $DIR/seek_to_start_instead_of_rewind.rs:53:7 | LL | t.seek(SeekFrom::Start(0)); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `rewind()` @@ -7,13 +7,13 @@ LL | t.seek(SeekFrom::Start(0)); = note: `-D clippy::seek-to-start-instead-of-rewind` implied by `-D warnings` error: used `seek` to go to the start of the stream - --> $DIR/seek_to_start_instead_of_rewind.rs:59:7 + --> $DIR/seek_to_start_instead_of_rewind.rs:58:7 | LL | t.seek(SeekFrom::Start(0)); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `rewind()` error: used `seek` to go to the start of the stream - --> $DIR/seek_to_start_instead_of_rewind.rs:131:7 + --> $DIR/seek_to_start_instead_of_rewind.rs:128:7 | LL | f.seek(SeekFrom::Start(0)); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `rewind()` diff --git a/src/tools/clippy/tests/ui/transmute_ptr_to_ref.fixed b/src/tools/clippy/tests/ui/transmute_ptr_to_ref.fixed index e5fe9133f97..074dae5fb28 100644 --- a/src/tools/clippy/tests/ui/transmute_ptr_to_ref.fixed +++ b/src/tools/clippy/tests/ui/transmute_ptr_to_ref.fixed @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::transmute_ptr_to_ref)] #![allow(clippy::match_single_binding)] @@ -51,8 +50,8 @@ unsafe fn _issue8924<'a, 'b, 'c>(x: *const &'a u32, y: *const &'b u32) -> &'c &' } } +#[clippy::msrv = "1.38"] unsafe fn _meets_msrv<'a, 'b, 'c>(x: *const &'a u32) -> &'c &'b u32 { - #![clippy::msrv = "1.38"] let a = 0u32; let a = &a as *const u32; let _: &u32 = &*a; @@ -63,8 +62,8 @@ unsafe fn _meets_msrv<'a, 'b, 'c>(x: *const &'a u32) -> &'c &'b u32 { } } +#[clippy::msrv = "1.37"] unsafe fn _under_msrv<'a, 'b, 'c>(x: *const &'a u32) -> &'c &'b u32 { - #![clippy::msrv = "1.37"] let a = 0u32; let a = &a as *const u32; let _: &u32 = &*a; diff --git a/src/tools/clippy/tests/ui/transmute_ptr_to_ref.rs b/src/tools/clippy/tests/ui/transmute_ptr_to_ref.rs index fe49cdc324f..2edc122cf47 100644 --- a/src/tools/clippy/tests/ui/transmute_ptr_to_ref.rs +++ b/src/tools/clippy/tests/ui/transmute_ptr_to_ref.rs @@ -1,6 +1,5 @@ // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::transmute_ptr_to_ref)] #![allow(clippy::match_single_binding)] @@ -51,8 +50,8 @@ unsafe fn _issue8924<'a, 'b, 'c>(x: *const &'a u32, y: *const &'b u32) -> &'c &' } } +#[clippy::msrv = "1.38"] unsafe fn _meets_msrv<'a, 'b, 'c>(x: *const &'a u32) -> &'c &'b u32 { - #![clippy::msrv = "1.38"] let a = 0u32; let a = &a as *const u32; let _: &u32 = std::mem::transmute(a); @@ -63,8 +62,8 @@ unsafe fn _meets_msrv<'a, 'b, 'c>(x: *const &'a u32) -> &'c &'b u32 { } } +#[clippy::msrv = "1.37"] unsafe fn _under_msrv<'a, 'b, 'c>(x: *const &'a u32) -> &'c &'b u32 { - #![clippy::msrv = "1.37"] let a = 0u32; let a = &a as *const u32; let _: &u32 = std::mem::transmute(a); diff --git a/src/tools/clippy/tests/ui/transmute_ptr_to_ref.stderr b/src/tools/clippy/tests/ui/transmute_ptr_to_ref.stderr index 10117ee9182..b3e6c09d2d7 100644 --- a/src/tools/clippy/tests/ui/transmute_ptr_to_ref.stderr +++ b/src/tools/clippy/tests/ui/transmute_ptr_to_ref.stderr @@ -1,5 +1,5 @@ error: transmute from a pointer type (`*const T`) to a reference type (`&T`) - --> $DIR/transmute_ptr_to_ref.rs:8:17 + --> $DIR/transmute_ptr_to_ref.rs:7:17 | LL | let _: &T = std::mem::transmute(p); | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*p` @@ -7,127 +7,127 @@ LL | let _: &T = std::mem::transmute(p); = note: `-D clippy::transmute-ptr-to-ref` implied by `-D warnings` error: transmute from a pointer type (`*mut T`) to a reference type (`&mut T`) - --> $DIR/transmute_ptr_to_ref.rs:11:21 + --> $DIR/transmute_ptr_to_ref.rs:10:21 | LL | let _: &mut T = std::mem::transmute(m); | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&mut *m` error: transmute from a pointer type (`*mut T`) to a reference type (`&T`) - --> $DIR/transmute_ptr_to_ref.rs:14:17 + --> $DIR/transmute_ptr_to_ref.rs:13:17 | LL | let _: &T = std::mem::transmute(m); | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*m` error: transmute from a pointer type (`*mut T`) to a reference type (`&mut T`) - --> $DIR/transmute_ptr_to_ref.rs:17:21 + --> $DIR/transmute_ptr_to_ref.rs:16:21 | LL | let _: &mut T = std::mem::transmute(p as *mut T); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&mut *(p as *mut T)` error: transmute from a pointer type (`*const U`) to a reference type (`&T`) - --> $DIR/transmute_ptr_to_ref.rs:20:17 + --> $DIR/transmute_ptr_to_ref.rs:19:17 | LL | let _: &T = std::mem::transmute(o); | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(o as *const T)` error: transmute from a pointer type (`*mut U`) to a reference type (`&mut T`) - --> $DIR/transmute_ptr_to_ref.rs:23:21 + --> $DIR/transmute_ptr_to_ref.rs:22:21 | LL | let _: &mut T = std::mem::transmute(om); | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&mut *(om as *mut T)` error: transmute from a pointer type (`*mut U`) to a reference type (`&T`) - --> $DIR/transmute_ptr_to_ref.rs:26:17 + --> $DIR/transmute_ptr_to_ref.rs:25:17 | LL | let _: &T = std::mem::transmute(om); | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(om as *const T)` error: transmute from a pointer type (`*const i32`) to a reference type (`&_issue1231::Foo<'_, u8>`) - --> $DIR/transmute_ptr_to_ref.rs:36:32 + --> $DIR/transmute_ptr_to_ref.rs:35:32 | LL | let _: &Foo<u8> = unsafe { std::mem::transmute::<_, &Foo<_>>(raw) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*raw.cast::<Foo<_>>()` error: transmute from a pointer type (`*const i32`) to a reference type (`&_issue1231::Foo<'_, &u8>`) - --> $DIR/transmute_ptr_to_ref.rs:38:33 + --> $DIR/transmute_ptr_to_ref.rs:37:33 | LL | let _: &Foo<&u8> = unsafe { std::mem::transmute::<_, &Foo<&_>>(raw) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*raw.cast::<Foo<&_>>()` error: transmute from a pointer type (`*const i32`) to a reference type (`&u8`) - --> $DIR/transmute_ptr_to_ref.rs:42:14 + --> $DIR/transmute_ptr_to_ref.rs:41:14 | LL | unsafe { std::mem::transmute::<_, Bar>(raw) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(raw as *const u8)` error: transmute from a pointer type (`*const &u32`) to a reference type (`&&u32`) - --> $DIR/transmute_ptr_to_ref.rs:47:14 + --> $DIR/transmute_ptr_to_ref.rs:46:14 | LL | 0 => std::mem::transmute(x), | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*x.cast::<&u32>()` error: transmute from a pointer type (`*const &u32`) to a reference type (`&&u32`) - --> $DIR/transmute_ptr_to_ref.rs:48:14 + --> $DIR/transmute_ptr_to_ref.rs:47:14 | LL | 1 => std::mem::transmute(y), | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*y.cast::<&u32>()` error: transmute from a pointer type (`*const &u32`) to a reference type (`&&u32`) - --> $DIR/transmute_ptr_to_ref.rs:49:14 + --> $DIR/transmute_ptr_to_ref.rs:48:14 | LL | 2 => std::mem::transmute::<_, &&'b u32>(x), | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*x.cast::<&'b u32>()` error: transmute from a pointer type (`*const &u32`) to a reference type (`&&u32`) - --> $DIR/transmute_ptr_to_ref.rs:50:14 + --> $DIR/transmute_ptr_to_ref.rs:49:14 | LL | _ => std::mem::transmute::<_, &&'b u32>(y), | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*y.cast::<&'b u32>()` error: transmute from a pointer type (`*const u32`) to a reference type (`&u32`) - --> $DIR/transmute_ptr_to_ref.rs:58:19 + --> $DIR/transmute_ptr_to_ref.rs:57:19 | LL | let _: &u32 = std::mem::transmute(a); | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*a` error: transmute from a pointer type (`*const u32`) to a reference type (`&u32`) - --> $DIR/transmute_ptr_to_ref.rs:59:19 + --> $DIR/transmute_ptr_to_ref.rs:58:19 | LL | let _: &u32 = std::mem::transmute::<_, &u32>(a); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*a.cast::<u32>()` error: transmute from a pointer type (`*const &u32`) to a reference type (`&&u32`) - --> $DIR/transmute_ptr_to_ref.rs:61:14 + --> $DIR/transmute_ptr_to_ref.rs:60:14 | LL | 0 => std::mem::transmute(x), | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*x.cast::<&u32>()` error: transmute from a pointer type (`*const &u32`) to a reference type (`&&u32`) - --> $DIR/transmute_ptr_to_ref.rs:62:14 + --> $DIR/transmute_ptr_to_ref.rs:61:14 | LL | _ => std::mem::transmute::<_, &&'b u32>(x), | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*x.cast::<&'b u32>()` error: transmute from a pointer type (`*const u32`) to a reference type (`&u32`) - --> $DIR/transmute_ptr_to_ref.rs:70:19 + --> $DIR/transmute_ptr_to_ref.rs:69:19 | LL | let _: &u32 = std::mem::transmute(a); | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*a` error: transmute from a pointer type (`*const u32`) to a reference type (`&u32`) - --> $DIR/transmute_ptr_to_ref.rs:71:19 + --> $DIR/transmute_ptr_to_ref.rs:70:19 | LL | let _: &u32 = std::mem::transmute::<_, &u32>(a); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(a as *const u32)` error: transmute from a pointer type (`*const &u32`) to a reference type (`&&u32`) - --> $DIR/transmute_ptr_to_ref.rs:73:14 + --> $DIR/transmute_ptr_to_ref.rs:72:14 | LL | 0 => std::mem::transmute(x), | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(x as *const () as *const &u32)` error: transmute from a pointer type (`*const &u32`) to a reference type (`&&u32`) - --> $DIR/transmute_ptr_to_ref.rs:74:14 + --> $DIR/transmute_ptr_to_ref.rs:73:14 | LL | _ => std::mem::transmute::<_, &&'b u32>(x), | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(x as *const () as *const &'b u32)` diff --git a/src/tools/clippy/tests/ui/undocumented_unsafe_blocks.rs b/src/tools/clippy/tests/ui/undocumented_unsafe_blocks.rs index cbc6768033e..c05eb447b2e 100644 --- a/src/tools/clippy/tests/ui/undocumented_unsafe_blocks.rs +++ b/src/tools/clippy/tests/ui/undocumented_unsafe_blocks.rs @@ -1,6 +1,6 @@ // aux-build:proc_macro_unsafe.rs -#![warn(clippy::undocumented_unsafe_blocks)] +#![warn(clippy::undocumented_unsafe_blocks, clippy::unnecessary_safety_comment)] #![allow(clippy::let_unit_value, clippy::missing_safety_doc)] extern crate proc_macro_unsafe; diff --git a/src/tools/clippy/tests/ui/undocumented_unsafe_blocks.stderr b/src/tools/clippy/tests/ui/undocumented_unsafe_blocks.stderr index ba4de9806d1..d1c1bb5ffea 100644 --- a/src/tools/clippy/tests/ui/undocumented_unsafe_blocks.stderr +++ b/src/tools/clippy/tests/ui/undocumented_unsafe_blocks.stderr @@ -239,6 +239,19 @@ LL | unsafe impl TrailingComment for () {} // SAFETY: | = help: consider adding a safety comment on the preceding line +error: constant item has unnecessary safety comment + --> $DIR/undocumented_unsafe_blocks.rs:471:5 + | +LL | const BIG_NUMBER: i32 = 1000000; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: consider removing the safety comment + --> $DIR/undocumented_unsafe_blocks.rs:470:5 + | +LL | // SAFETY: + | ^^^^^^^^^^ + = note: `-D clippy::unnecessary-safety-comment` implied by `-D warnings` + error: unsafe impl missing a safety comment --> $DIR/undocumented_unsafe_blocks.rs:472:5 | @@ -271,6 +284,24 @@ LL | unsafe {}; | = help: consider adding a safety comment on the preceding line +error: statement has unnecessary safety comment + --> $DIR/undocumented_unsafe_blocks.rs:501:5 + | +LL | / let _ = { +LL | | if unsafe { true } { +LL | | todo!(); +LL | | } else { +... | +LL | | } +LL | | }; + | |______^ + | +help: consider removing the safety comment + --> $DIR/undocumented_unsafe_blocks.rs:500:5 + | +LL | // SAFETY: this is more than one level away, so it should warn + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + error: unsafe block missing a safety comment --> $DIR/undocumented_unsafe_blocks.rs:502:12 | @@ -287,5 +318,5 @@ LL | let bar = unsafe {}; | = help: consider adding a safety comment on the preceding line -error: aborting due to 34 previous errors +error: aborting due to 36 previous errors diff --git a/src/tools/clippy/tests/ui/uninlined_format_args.fixed b/src/tools/clippy/tests/ui/uninlined_format_args.fixed index 10627447975..9d08e80cf9a 100644 --- a/src/tools/clippy/tests/ui/uninlined_format_args.fixed +++ b/src/tools/clippy/tests/ui/uninlined_format_args.fixed @@ -1,6 +1,5 @@ // aux-build:proc_macro_with_span.rs // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::uninlined_format_args)] #![allow(named_arguments_used_positionally, unused_imports, unused_macros, unused_variables)] #![allow(clippy::eq_op, clippy::format_in_format_args, clippy::print_literal)] @@ -44,9 +43,7 @@ fn tester(fn_arg: i32) { println!("val='{local_i32}'"); // space+tab println!("val='{local_i32}'"); // tab+space println!( - "val='{ - }'", - local_i32 + "val='{local_i32}'" ); println!("{local_i32}"); println!("{fn_arg}"); @@ -57,11 +54,11 @@ fn tester(fn_arg: i32) { println!("{local_i32:<3}"); println!("{local_i32:#010x}"); println!("{local_f64:.1}"); - println!("Hello {} is {local_f64:.local_i32$}", "x"); - println!("Hello {local_i32} is {local_f64:.*}", 5); - println!("Hello {local_i32} is {local_f64:.*}", 5); + println!("Hello {} is {:.*}", "x", local_i32, local_f64); + println!("Hello {} is {:.*}", local_i32, 5, local_f64); + println!("Hello {} is {2:.*}", local_i32, 5, local_f64); println!("{local_i32} {local_f64}"); - println!("{local_i32}, {}", local_opt.unwrap()); + println!("{}, {}", local_i32, local_opt.unwrap()); println!("{val}"); println!("{val}"); println!("{} {1}", local_i32, 42); @@ -110,8 +107,7 @@ fn tester(fn_arg: i32) { println!("{local_f64:width$.prec$}"); println!("{local_f64:width$.prec$} {local_f64} {width} {prec}"); println!( - "{0:1$.2$} {0:2$.1$} {1:0$.2$} {1:2$.0$} {2:0$.1$} {2:1$.0$}", - local_i32, width, prec, + "{local_i32:width$.prec$} {local_i32:prec$.width$} {width:local_i32$.prec$} {width:prec$.local_i32$} {prec:local_i32$.width$} {prec:width$.local_i32$}", ); println!( "{0:1$.2$} {0:2$.1$} {1:0$.2$} {1:2$.0$} {2:0$.1$} {2:1$.0$} {3}", @@ -142,9 +138,7 @@ fn tester(fn_arg: i32) { println!(no_param_str!(), local_i32); println!( - "{}", - // comment with a comma , in it - val, + "{val}", ); println!("{val}"); @@ -169,14 +163,14 @@ fn main() { tester(42); } +#[clippy::msrv = "1.57"] fn _under_msrv() { - #![clippy::msrv = "1.57"] let local_i32 = 1; println!("don't expand='{}'", local_i32); } +#[clippy::msrv = "1.58"] fn _meets_msrv() { - #![clippy::msrv = "1.58"] let local_i32 = 1; println!("expand='{local_i32}'"); } diff --git a/src/tools/clippy/tests/ui/uninlined_format_args.rs b/src/tools/clippy/tests/ui/uninlined_format_args.rs index 8e495ebd083..35b3677a896 100644 --- a/src/tools/clippy/tests/ui/uninlined_format_args.rs +++ b/src/tools/clippy/tests/ui/uninlined_format_args.rs @@ -1,6 +1,5 @@ // aux-build:proc_macro_with_span.rs // run-rustfix -#![feature(custom_inner_attributes)] #![warn(clippy::uninlined_format_args)] #![allow(named_arguments_used_positionally, unused_imports, unused_macros, unused_variables)] #![allow(clippy::eq_op, clippy::format_in_format_args, clippy::print_literal)] @@ -169,14 +168,14 @@ fn main() { tester(42); } +#[clippy::msrv = "1.57"] fn _under_msrv() { - #![clippy::msrv = "1.57"] let local_i32 = 1; println!("don't expand='{}'", local_i32); } +#[clippy::msrv = "1.58"] fn _meets_msrv() { - #![clippy::msrv = "1.58"] let local_i32 = 1; println!("expand='{}'", local_i32); } diff --git a/src/tools/clippy/tests/ui/uninlined_format_args.stderr b/src/tools/clippy/tests/ui/uninlined_format_args.stderr index 2ce3b7fa960..a12abf8bef8 100644 --- a/src/tools/clippy/tests/ui/uninlined_format_args.stderr +++ b/src/tools/clippy/tests/ui/uninlined_format_args.stderr @@ -1,5 +1,5 @@ error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:41:5 + --> $DIR/uninlined_format_args.rs:40:5 | LL | println!("val='{}'", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -12,7 +12,7 @@ LL + println!("val='{local_i32}'"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:42:5 + --> $DIR/uninlined_format_args.rs:41:5 | LL | println!("val='{ }'", local_i32); // 3 spaces | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -24,7 +24,7 @@ LL + println!("val='{local_i32}'"); // 3 spaces | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:43:5 + --> $DIR/uninlined_format_args.rs:42:5 | LL | println!("val='{ }'", local_i32); // tab | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -36,7 +36,7 @@ LL + println!("val='{local_i32}'"); // tab | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:44:5 + --> $DIR/uninlined_format_args.rs:43:5 | LL | println!("val='{ }'", local_i32); // space+tab | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -48,7 +48,7 @@ LL + println!("val='{local_i32}'"); // space+tab | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:45:5 + --> $DIR/uninlined_format_args.rs:44:5 | LL | println!("val='{ }'", local_i32); // tab+space | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -60,7 +60,17 @@ LL + println!("val='{local_i32}'"); // tab+space | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:51:5 + --> $DIR/uninlined_format_args.rs:45:5 + | +LL | / println!( +LL | | "val='{ +LL | | }'", +LL | | local_i32 +LL | | ); + | |_____^ + +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args.rs:50:5 | LL | println!("{}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -72,7 +82,7 @@ LL + println!("{local_i32}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:52:5 + --> $DIR/uninlined_format_args.rs:51:5 | LL | println!("{}", fn_arg); | ^^^^^^^^^^^^^^^^^^^^^^ @@ -84,7 +94,7 @@ LL + println!("{fn_arg}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:53:5 + --> $DIR/uninlined_format_args.rs:52:5 | LL | println!("{:?}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -96,7 +106,7 @@ LL + println!("{local_i32:?}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:54:5 + --> $DIR/uninlined_format_args.rs:53:5 | LL | println!("{:#?}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -108,7 +118,7 @@ LL + println!("{local_i32:#?}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:55:5 + --> $DIR/uninlined_format_args.rs:54:5 | LL | println!("{:4}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -120,7 +130,7 @@ LL + println!("{local_i32:4}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:56:5 + --> $DIR/uninlined_format_args.rs:55:5 | LL | println!("{:04}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -132,7 +142,7 @@ LL + println!("{local_i32:04}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:57:5 + --> $DIR/uninlined_format_args.rs:56:5 | LL | println!("{:<3}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -144,7 +154,7 @@ LL + println!("{local_i32:<3}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:58:5 + --> $DIR/uninlined_format_args.rs:57:5 | LL | println!("{:#010x}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -156,7 +166,7 @@ LL + println!("{local_i32:#010x}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:59:5 + --> $DIR/uninlined_format_args.rs:58:5 | LL | println!("{:.1}", local_f64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -168,44 +178,8 @@ LL + println!("{local_f64:.1}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:60:5 - | -LL | println!("Hello {} is {:.*}", "x", local_i32, local_f64); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | -help: change this to - | -LL - println!("Hello {} is {:.*}", "x", local_i32, local_f64); -LL + println!("Hello {} is {local_f64:.local_i32$}", "x"); - | - -error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:61:5 - | -LL | println!("Hello {} is {:.*}", local_i32, 5, local_f64); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | -help: change this to - | -LL - println!("Hello {} is {:.*}", local_i32, 5, local_f64); -LL + println!("Hello {local_i32} is {local_f64:.*}", 5); - | - -error: variables can be used directly in the `format!` string --> $DIR/uninlined_format_args.rs:62:5 | -LL | println!("Hello {} is {2:.*}", local_i32, 5, local_f64); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | -help: change this to - | -LL - println!("Hello {} is {2:.*}", local_i32, 5, local_f64); -LL + println!("Hello {local_i32} is {local_f64:.*}", 5); - | - -error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:63:5 - | LL | println!("{} {}", local_i32, local_f64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | @@ -218,18 +192,6 @@ LL + println!("{local_i32} {local_f64}"); error: variables can be used directly in the `format!` string --> $DIR/uninlined_format_args.rs:64:5 | -LL | println!("{}, {}", local_i32, local_opt.unwrap()); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | -help: change this to - | -LL - println!("{}, {}", local_i32, local_opt.unwrap()); -LL + println!("{local_i32}, {}", local_opt.unwrap()); - | - -error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:65:5 - | LL | println!("{}", val); | ^^^^^^^^^^^^^^^^^^^ | @@ -240,7 +202,7 @@ LL + println!("{val}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:66:5 + --> $DIR/uninlined_format_args.rs:65:5 | LL | println!("{}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -252,7 +214,7 @@ LL + println!("{val}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:68:5 + --> $DIR/uninlined_format_args.rs:67:5 | LL | println!("val='{/t }'", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -264,7 +226,7 @@ LL + println!("val='{local_i32}'"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:69:5 + --> $DIR/uninlined_format_args.rs:68:5 | LL | println!("val='{/n }'", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -276,7 +238,7 @@ LL + println!("val='{local_i32}'"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:70:5 + --> $DIR/uninlined_format_args.rs:69:5 | LL | println!("val='{local_i32}'", local_i32 = local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -288,7 +250,7 @@ LL + println!("val='{local_i32}'"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:71:5 + --> $DIR/uninlined_format_args.rs:70:5 | LL | println!("val='{local_i32}'", local_i32 = fn_arg); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -300,7 +262,7 @@ LL + println!("val='{fn_arg}'"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:72:5 + --> $DIR/uninlined_format_args.rs:71:5 | LL | println!("{0}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -312,7 +274,7 @@ LL + println!("{local_i32}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:73:5 + --> $DIR/uninlined_format_args.rs:72:5 | LL | println!("{0:?}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -324,7 +286,7 @@ LL + println!("{local_i32:?}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:74:5 + --> $DIR/uninlined_format_args.rs:73:5 | LL | println!("{0:#?}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -336,7 +298,7 @@ LL + println!("{local_i32:#?}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:75:5 + --> $DIR/uninlined_format_args.rs:74:5 | LL | println!("{0:04}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -348,7 +310,7 @@ LL + println!("{local_i32:04}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:76:5 + --> $DIR/uninlined_format_args.rs:75:5 | LL | println!("{0:<3}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -360,7 +322,7 @@ LL + println!("{local_i32:<3}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:77:5 + --> $DIR/uninlined_format_args.rs:76:5 | LL | println!("{0:#010x}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -372,7 +334,7 @@ LL + println!("{local_i32:#010x}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:78:5 + --> $DIR/uninlined_format_args.rs:77:5 | LL | println!("{0:.1}", local_f64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -384,7 +346,7 @@ LL + println!("{local_f64:.1}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:79:5 + --> $DIR/uninlined_format_args.rs:78:5 | LL | println!("{0} {0}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -396,7 +358,7 @@ LL + println!("{local_i32} {local_i32}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:80:5 + --> $DIR/uninlined_format_args.rs:79:5 | LL | println!("{1} {} {0} {}", local_i32, local_f64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -408,7 +370,7 @@ LL + println!("{local_f64} {local_i32} {local_i32} {local_f64}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:81:5 + --> $DIR/uninlined_format_args.rs:80:5 | LL | println!("{0} {1}", local_i32, local_f64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -420,7 +382,7 @@ LL + println!("{local_i32} {local_f64}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:82:5 + --> $DIR/uninlined_format_args.rs:81:5 | LL | println!("{1} {0}", local_i32, local_f64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -432,7 +394,7 @@ LL + println!("{local_f64} {local_i32}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:83:5 + --> $DIR/uninlined_format_args.rs:82:5 | LL | println!("{1} {0} {1} {0}", local_i32, local_f64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -444,7 +406,7 @@ LL + println!("{local_f64} {local_i32} {local_f64} {local_i32}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:85:5 + --> $DIR/uninlined_format_args.rs:84:5 | LL | println!("{v}", v = local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -456,7 +418,7 @@ LL + println!("{local_i32}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:86:5 + --> $DIR/uninlined_format_args.rs:85:5 | LL | println!("{local_i32:0$}", width); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -468,7 +430,7 @@ LL + println!("{local_i32:width$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:87:5 + --> $DIR/uninlined_format_args.rs:86:5 | LL | println!("{local_i32:w$}", w = width); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -480,7 +442,7 @@ LL + println!("{local_i32:width$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:88:5 + --> $DIR/uninlined_format_args.rs:87:5 | LL | println!("{local_i32:.0$}", prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -492,7 +454,7 @@ LL + println!("{local_i32:.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:89:5 + --> $DIR/uninlined_format_args.rs:88:5 | LL | println!("{local_i32:.p$}", p = prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -504,7 +466,7 @@ LL + println!("{local_i32:.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:90:5 + --> $DIR/uninlined_format_args.rs:89:5 | LL | println!("{:0$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -516,7 +478,7 @@ LL + println!("{val:val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:91:5 + --> $DIR/uninlined_format_args.rs:90:5 | LL | println!("{0:0$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -528,7 +490,7 @@ LL + println!("{val:val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:92:5 + --> $DIR/uninlined_format_args.rs:91:5 | LL | println!("{:0$.0$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -540,7 +502,7 @@ LL + println!("{val:val$.val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:93:5 + --> $DIR/uninlined_format_args.rs:92:5 | LL | println!("{0:0$.0$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -552,7 +514,7 @@ LL + println!("{val:val$.val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:94:5 + --> $DIR/uninlined_format_args.rs:93:5 | LL | println!("{0:0$.v$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -564,7 +526,7 @@ LL + println!("{val:val$.val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:95:5 + --> $DIR/uninlined_format_args.rs:94:5 | LL | println!("{0:v$.0$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -576,7 +538,7 @@ LL + println!("{val:val$.val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:96:5 + --> $DIR/uninlined_format_args.rs:95:5 | LL | println!("{v:0$.0$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -588,7 +550,7 @@ LL + println!("{val:val$.val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:97:5 + --> $DIR/uninlined_format_args.rs:96:5 | LL | println!("{v:v$.0$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -600,7 +562,7 @@ LL + println!("{val:val$.val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:98:5 + --> $DIR/uninlined_format_args.rs:97:5 | LL | println!("{v:0$.v$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -612,7 +574,7 @@ LL + println!("{val:val$.val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:99:5 + --> $DIR/uninlined_format_args.rs:98:5 | LL | println!("{v:v$.v$}", v = val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -624,7 +586,7 @@ LL + println!("{val:val$.val$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:100:5 + --> $DIR/uninlined_format_args.rs:99:5 | LL | println!("{:0$}", width); | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -636,7 +598,7 @@ LL + println!("{width:width$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:101:5 + --> $DIR/uninlined_format_args.rs:100:5 | LL | println!("{:1$}", local_i32, width); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -648,7 +610,7 @@ LL + println!("{local_i32:width$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:102:5 + --> $DIR/uninlined_format_args.rs:101:5 | LL | println!("{:w$}", w = width); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -660,7 +622,7 @@ LL + println!("{width:width$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:103:5 + --> $DIR/uninlined_format_args.rs:102:5 | LL | println!("{:w$}", local_i32, w = width); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -672,7 +634,7 @@ LL + println!("{local_i32:width$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:104:5 + --> $DIR/uninlined_format_args.rs:103:5 | LL | println!("{:.0$}", prec); | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -684,7 +646,7 @@ LL + println!("{prec:.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:105:5 + --> $DIR/uninlined_format_args.rs:104:5 | LL | println!("{:.1$}", local_i32, prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -696,7 +658,7 @@ LL + println!("{local_i32:.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:106:5 + --> $DIR/uninlined_format_args.rs:105:5 | LL | println!("{:.p$}", p = prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -708,7 +670,7 @@ LL + println!("{prec:.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:107:5 + --> $DIR/uninlined_format_args.rs:106:5 | LL | println!("{:.p$}", local_i32, p = prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -720,7 +682,7 @@ LL + println!("{local_i32:.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:108:5 + --> $DIR/uninlined_format_args.rs:107:5 | LL | println!("{:0$.1$}", width, prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -732,7 +694,7 @@ LL + println!("{width:width$.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:109:5 + --> $DIR/uninlined_format_args.rs:108:5 | LL | println!("{:0$.w$}", width, w = prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -744,7 +706,7 @@ LL + println!("{width:width$.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:110:5 + --> $DIR/uninlined_format_args.rs:109:5 | LL | println!("{:1$.2$}", local_f64, width, prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -756,7 +718,7 @@ LL + println!("{local_f64:width$.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:111:5 + --> $DIR/uninlined_format_args.rs:110:5 | LL | println!("{:1$.2$} {0} {1} {2}", local_f64, width, prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -768,7 +730,16 @@ LL + println!("{local_f64:width$.prec$} {local_f64} {width} {prec}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:123:5 + --> $DIR/uninlined_format_args.rs:111:5 + | +LL | / println!( +LL | | "{0:1$.2$} {0:2$.1$} {1:0$.2$} {1:2$.0$} {2:0$.1$} {2:1$.0$}", +LL | | local_i32, width, prec, +LL | | ); + | |_____^ + +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args.rs:122:5 | LL | println!("Width = {}, value with width = {:0$}", local_i32, local_f64); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -780,7 +751,7 @@ LL + println!("Width = {local_i32}, value with width = {local_f64:local_i32$ | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:124:5 + --> $DIR/uninlined_format_args.rs:123:5 | LL | println!("{:w$.p$}", local_i32, w = width, p = prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -792,7 +763,7 @@ LL + println!("{local_i32:width$.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:125:5 + --> $DIR/uninlined_format_args.rs:124:5 | LL | println!("{:w$.p$}", w = width, p = prec); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -804,7 +775,7 @@ LL + println!("{width:width$.prec$}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:126:20 + --> $DIR/uninlined_format_args.rs:125:20 | LL | println!("{}", format!("{}", local_i32)); | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -816,7 +787,17 @@ LL + println!("{}", format!("{local_i32}")); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:149:5 + --> $DIR/uninlined_format_args.rs:143:5 + | +LL | / println!( +LL | | "{}", +LL | | // comment with a comma , in it +LL | | val, +LL | | ); + | |_____^ + +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args.rs:148:5 | LL | println!("{}", /* comment with a comma , in it */ val); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -828,7 +809,7 @@ LL + println!("{val}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:155:9 + --> $DIR/uninlined_format_args.rs:154:9 | LL | panic!("p1 {}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -840,7 +821,7 @@ LL + panic!("p1 {local_i32}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:158:9 + --> $DIR/uninlined_format_args.rs:157:9 | LL | panic!("p2 {0}", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -852,7 +833,7 @@ LL + panic!("p2 {local_i32}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:161:9 + --> $DIR/uninlined_format_args.rs:160:9 | LL | panic!("p3 {local_i32}", local_i32 = local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -864,7 +845,7 @@ LL + panic!("p3 {local_i32}"); | error: variables can be used directly in the `format!` string - --> $DIR/uninlined_format_args.rs:181:5 + --> $DIR/uninlined_format_args.rs:180:5 | LL | println!("expand='{}'", local_i32); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -875,5 +856,5 @@ LL - println!("expand='{}'", local_i32); LL + println!("expand='{local_i32}'"); | -error: aborting due to 73 previous errors +error: aborting due to 72 previous errors diff --git a/src/tools/clippy/tests/ui/unnecessary_cast.fixed b/src/tools/clippy/tests/ui/unnecessary_cast.fixed index ec8c6abfab9..2f7e2997e73 100644 --- a/src/tools/clippy/tests/ui/unnecessary_cast.fixed +++ b/src/tools/clippy/tests/ui/unnecessary_cast.fixed @@ -41,6 +41,17 @@ fn main() { // do not lint cast to alias type 1 as I32Alias; &1 as &I32Alias; + + // issue #9960 + macro_rules! bind_var { + ($id:ident, $e:expr) => {{ + let $id = 0usize; + let _ = $e != 0usize; + let $id = 0isize; + let _ = $e != 0usize; + }} + } + bind_var!(x, (x as usize) + 1); } type I32Alias = i32; @@ -85,6 +96,9 @@ mod fixable { let _ = 1 as I32Alias; let _ = &1 as &I32Alias; + + let x = 1i32; + let _ = &{ x }; } type I32Alias = i32; diff --git a/src/tools/clippy/tests/ui/unnecessary_cast.rs b/src/tools/clippy/tests/ui/unnecessary_cast.rs index 5213cdc269b..54dd46ba59f 100644 --- a/src/tools/clippy/tests/ui/unnecessary_cast.rs +++ b/src/tools/clippy/tests/ui/unnecessary_cast.rs @@ -41,6 +41,17 @@ fn main() { // do not lint cast to alias type 1 as I32Alias; &1 as &I32Alias; + + // issue #9960 + macro_rules! bind_var { + ($id:ident, $e:expr) => {{ + let $id = 0usize; + let _ = $e != 0usize; + let $id = 0isize; + let _ = $e != 0usize; + }} + } + bind_var!(x, (x as usize) + 1); } type I32Alias = i32; @@ -85,6 +96,9 @@ mod fixable { let _ = 1 as I32Alias; let _ = &1 as &I32Alias; + + let x = 1i32; + let _ = &(x as i32); } type I32Alias = i32; diff --git a/src/tools/clippy/tests/ui/unnecessary_cast.stderr b/src/tools/clippy/tests/ui/unnecessary_cast.stderr index e5c3dd5e53f..fcee4ee2a65 100644 --- a/src/tools/clippy/tests/ui/unnecessary_cast.stderr +++ b/src/tools/clippy/tests/ui/unnecessary_cast.stderr @@ -49,136 +49,142 @@ LL | 1_f32 as f32; | ^^^^^^^^^^^^ help: try: `1_f32` error: casting integer literal to `f32` is unnecessary - --> $DIR/unnecessary_cast.rs:53:9 + --> $DIR/unnecessary_cast.rs:64:9 | LL | 100 as f32; | ^^^^^^^^^^ help: try: `100_f32` error: casting integer literal to `f64` is unnecessary - --> $DIR/unnecessary_cast.rs:54:9 + --> $DIR/unnecessary_cast.rs:65:9 | LL | 100 as f64; | ^^^^^^^^^^ help: try: `100_f64` error: casting integer literal to `f64` is unnecessary - --> $DIR/unnecessary_cast.rs:55:9 + --> $DIR/unnecessary_cast.rs:66:9 | LL | 100_i32 as f64; | ^^^^^^^^^^^^^^ help: try: `100_f64` error: casting integer literal to `f32` is unnecessary - --> $DIR/unnecessary_cast.rs:56:17 + --> $DIR/unnecessary_cast.rs:67:17 | LL | let _ = -100 as f32; | ^^^^^^^^^^^ help: try: `-100_f32` error: casting integer literal to `f64` is unnecessary - --> $DIR/unnecessary_cast.rs:57:17 + --> $DIR/unnecessary_cast.rs:68:17 | LL | let _ = -100 as f64; | ^^^^^^^^^^^ help: try: `-100_f64` error: casting integer literal to `f64` is unnecessary - --> $DIR/unnecessary_cast.rs:58:17 + --> $DIR/unnecessary_cast.rs:69:17 | LL | let _ = -100_i32 as f64; | ^^^^^^^^^^^^^^^ help: try: `-100_f64` error: casting float literal to `f32` is unnecessary - --> $DIR/unnecessary_cast.rs:59:9 + --> $DIR/unnecessary_cast.rs:70:9 | LL | 100. as f32; | ^^^^^^^^^^^ help: try: `100_f32` error: casting float literal to `f64` is unnecessary - --> $DIR/unnecessary_cast.rs:60:9 + --> $DIR/unnecessary_cast.rs:71:9 | LL | 100. as f64; | ^^^^^^^^^^^ help: try: `100_f64` error: casting integer literal to `u32` is unnecessary - --> $DIR/unnecessary_cast.rs:72:9 + --> $DIR/unnecessary_cast.rs:83:9 | LL | 1 as u32; | ^^^^^^^^ help: try: `1_u32` error: casting integer literal to `i32` is unnecessary - --> $DIR/unnecessary_cast.rs:73:9 + --> $DIR/unnecessary_cast.rs:84:9 | LL | 0x10 as i32; | ^^^^^^^^^^^ help: try: `0x10_i32` error: casting integer literal to `usize` is unnecessary - --> $DIR/unnecessary_cast.rs:74:9 + --> $DIR/unnecessary_cast.rs:85:9 | LL | 0b10 as usize; | ^^^^^^^^^^^^^ help: try: `0b10_usize` error: casting integer literal to `u16` is unnecessary - --> $DIR/unnecessary_cast.rs:75:9 + --> $DIR/unnecessary_cast.rs:86:9 | LL | 0o73 as u16; | ^^^^^^^^^^^ help: try: `0o73_u16` error: casting integer literal to `u32` is unnecessary - --> $DIR/unnecessary_cast.rs:76:9 + --> $DIR/unnecessary_cast.rs:87:9 | LL | 1_000_000_000 as u32; | ^^^^^^^^^^^^^^^^^^^^ help: try: `1_000_000_000_u32` error: casting float literal to `f64` is unnecessary - --> $DIR/unnecessary_cast.rs:78:9 + --> $DIR/unnecessary_cast.rs:89:9 | LL | 1.0 as f64; | ^^^^^^^^^^ help: try: `1.0_f64` error: casting float literal to `f32` is unnecessary - --> $DIR/unnecessary_cast.rs:79:9 + --> $DIR/unnecessary_cast.rs:90:9 | LL | 0.5 as f32; | ^^^^^^^^^^ help: try: `0.5_f32` error: casting integer literal to `i32` is unnecessary - --> $DIR/unnecessary_cast.rs:83:17 + --> $DIR/unnecessary_cast.rs:94:17 | LL | let _ = -1 as i32; | ^^^^^^^^^ help: try: `-1_i32` error: casting float literal to `f32` is unnecessary - --> $DIR/unnecessary_cast.rs:84:17 + --> $DIR/unnecessary_cast.rs:95:17 | LL | let _ = -1.0 as f32; | ^^^^^^^^^^^ help: try: `-1.0_f32` +error: casting to the same type is unnecessary (`i32` -> `i32`) + --> $DIR/unnecessary_cast.rs:101:18 + | +LL | let _ = &(x as i32); + | ^^^^^^^^^^ help: try: `{ x }` + error: casting integer literal to `i32` is unnecessary - --> $DIR/unnecessary_cast.rs:93:22 + --> $DIR/unnecessary_cast.rs:107:22 | LL | let _: i32 = -(1) as i32; | ^^^^^^^^^^^ help: try: `-1_i32` error: casting integer literal to `i64` is unnecessary - --> $DIR/unnecessary_cast.rs:95:22 + --> $DIR/unnecessary_cast.rs:109:22 | LL | let _: i64 = -(1) as i64; | ^^^^^^^^^^^ help: try: `-1_i64` error: casting float literal to `f64` is unnecessary - --> $DIR/unnecessary_cast.rs:102:22 + --> $DIR/unnecessary_cast.rs:116:22 | LL | let _: f64 = (-8.0 as f64).exp(); | ^^^^^^^^^^^^^ help: try: `(-8.0_f64)` error: casting float literal to `f64` is unnecessary - --> $DIR/unnecessary_cast.rs:104:23 + --> $DIR/unnecessary_cast.rs:118:23 | LL | let _: f64 = -(8.0 as f64).exp(); // should suggest `-8.0_f64.exp()` here not to change code behavior | ^^^^^^^^^^^^ help: try: `8.0_f64` error: casting to the same type is unnecessary (`f32` -> `f32`) - --> $DIR/unnecessary_cast.rs:112:20 + --> $DIR/unnecessary_cast.rs:126:20 | LL | let _num = foo() as f32; | ^^^^^^^^^^^^ help: try: `foo()` -error: aborting due to 30 previous errors +error: aborting due to 31 previous errors diff --git a/src/tools/clippy/tests/ui/unnecessary_lazy_eval.fixed b/src/tools/clippy/tests/ui/unnecessary_lazy_eval.fixed index ce4a82e0217..22e9bd8bdc5 100644 --- a/src/tools/clippy/tests/ui/unnecessary_lazy_eval.fixed +++ b/src/tools/clippy/tests/ui/unnecessary_lazy_eval.fixed @@ -33,6 +33,14 @@ impl Drop for Issue9427 { } } +struct Issue9427FollowUp; + +impl Drop for Issue9427FollowUp { + fn drop(&mut self) { + panic!("side effect drop"); + } +} + fn main() { let astronomers_pi = 10; let ext_arr: [usize; 1] = [2]; @@ -87,6 +95,7 @@ fn main() { // Should not lint - bool let _ = (0 == 1).then(|| Issue9427(0)); // Issue9427 has a significant drop + let _ = false.then(|| Issue9427FollowUp); // Issue9427FollowUp has a significant drop // should not lint, bind_instead_of_map takes priority let _ = Some(10).and_then(|idx| Some(ext_arr[idx])); @@ -133,13 +142,13 @@ fn main() { let _: Result<usize, usize> = res.or(Ok(astronomers_pi)); let _: Result<usize, usize> = res.or(Ok(ext_str.some_field)); let _: Result<usize, usize> = res. - // some lines - // some lines - // some lines - // some lines - // some lines - // some lines - or(Ok(ext_str.some_field)); + // some lines + // some lines + // some lines + // some lines + // some lines + // some lines + or(Ok(ext_str.some_field)); // neither bind_instead_of_map nor unnecessary_lazy_eval applies here let _: Result<usize, usize> = res.and_then(|x| Err(x)); diff --git a/src/tools/clippy/tests/ui/unnecessary_lazy_eval.rs b/src/tools/clippy/tests/ui/unnecessary_lazy_eval.rs index 59cdf662854..8726d84a23f 100644 --- a/src/tools/clippy/tests/ui/unnecessary_lazy_eval.rs +++ b/src/tools/clippy/tests/ui/unnecessary_lazy_eval.rs @@ -33,6 +33,14 @@ impl Drop for Issue9427 { } } +struct Issue9427FollowUp; + +impl Drop for Issue9427FollowUp { + fn drop(&mut self) { + panic!("side effect drop"); + } +} + fn main() { let astronomers_pi = 10; let ext_arr: [usize; 1] = [2]; @@ -87,6 +95,7 @@ fn main() { // Should not lint - bool let _ = (0 == 1).then(|| Issue9427(0)); // Issue9427 has a significant drop + let _ = false.then(|| Issue9427FollowUp); // Issue9427FollowUp has a significant drop // should not lint, bind_instead_of_map takes priority let _ = Some(10).and_then(|idx| Some(ext_arr[idx])); @@ -133,13 +142,13 @@ fn main() { let _: Result<usize, usize> = res.or_else(|_| Ok(astronomers_pi)); let _: Result<usize, usize> = res.or_else(|_| Ok(ext_str.some_field)); let _: Result<usize, usize> = res. - // some lines - // some lines - // some lines - // some lines - // some lines - // some lines - or_else(|_| Ok(ext_str.some_field)); + // some lines + // some lines + // some lines + // some lines + // some lines + // some lines + or_else(|_| Ok(ext_str.some_field)); // neither bind_instead_of_map nor unnecessary_lazy_eval applies here let _: Result<usize, usize> = res.and_then(|x| Err(x)); diff --git a/src/tools/clippy/tests/ui/unnecessary_lazy_eval.stderr b/src/tools/clippy/tests/ui/unnecessary_lazy_eval.stderr index 8a9ece4aa7e..0339755442c 100644 --- a/src/tools/clippy/tests/ui/unnecessary_lazy_eval.stderr +++ b/src/tools/clippy/tests/ui/unnecessary_lazy_eval.stderr @@ -1,5 +1,5 @@ error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:48:13 + --> $DIR/unnecessary_lazy_eval.rs:56:13 | LL | let _ = opt.unwrap_or_else(|| 2); | ^^^^-------------------- @@ -9,7 +9,7 @@ LL | let _ = opt.unwrap_or_else(|| 2); = note: `-D clippy::unnecessary-lazy-evaluations` implied by `-D warnings` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:49:13 + --> $DIR/unnecessary_lazy_eval.rs:57:13 | LL | let _ = opt.unwrap_or_else(|| astronomers_pi); | ^^^^--------------------------------- @@ -17,7 +17,7 @@ LL | let _ = opt.unwrap_or_else(|| astronomers_pi); | help: use `unwrap_or(..)` instead: `unwrap_or(astronomers_pi)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:50:13 + --> $DIR/unnecessary_lazy_eval.rs:58:13 | LL | let _ = opt.unwrap_or_else(|| ext_str.some_field); | ^^^^------------------------------------- @@ -25,7 +25,7 @@ LL | let _ = opt.unwrap_or_else(|| ext_str.some_field); | help: use `unwrap_or(..)` instead: `unwrap_or(ext_str.some_field)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:52:13 + --> $DIR/unnecessary_lazy_eval.rs:60:13 | LL | let _ = opt.and_then(|_| ext_opt); | ^^^^--------------------- @@ -33,7 +33,7 @@ LL | let _ = opt.and_then(|_| ext_opt); | help: use `and(..)` instead: `and(ext_opt)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:53:13 + --> $DIR/unnecessary_lazy_eval.rs:61:13 | LL | let _ = opt.or_else(|| ext_opt); | ^^^^------------------- @@ -41,7 +41,7 @@ LL | let _ = opt.or_else(|| ext_opt); | help: use `or(..)` instead: `or(ext_opt)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:54:13 + --> $DIR/unnecessary_lazy_eval.rs:62:13 | LL | let _ = opt.or_else(|| None); | ^^^^---------------- @@ -49,7 +49,7 @@ LL | let _ = opt.or_else(|| None); | help: use `or(..)` instead: `or(None)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:55:13 + --> $DIR/unnecessary_lazy_eval.rs:63:13 | LL | let _ = opt.get_or_insert_with(|| 2); | ^^^^------------------------ @@ -57,7 +57,7 @@ LL | let _ = opt.get_or_insert_with(|| 2); | help: use `get_or_insert(..)` instead: `get_or_insert(2)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:56:13 + --> $DIR/unnecessary_lazy_eval.rs:64:13 | LL | let _ = opt.ok_or_else(|| 2); | ^^^^---------------- @@ -65,7 +65,7 @@ LL | let _ = opt.ok_or_else(|| 2); | help: use `ok_or(..)` instead: `ok_or(2)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:57:13 + --> $DIR/unnecessary_lazy_eval.rs:65:13 | LL | let _ = nested_tuple_opt.unwrap_or_else(|| Some((1, 2))); | ^^^^^^^^^^^^^^^^^------------------------------- @@ -73,7 +73,7 @@ LL | let _ = nested_tuple_opt.unwrap_or_else(|| Some((1, 2))); | help: use `unwrap_or(..)` instead: `unwrap_or(Some((1, 2)))` error: unnecessary closure used with `bool::then` - --> $DIR/unnecessary_lazy_eval.rs:58:13 + --> $DIR/unnecessary_lazy_eval.rs:66:13 | LL | let _ = cond.then(|| astronomers_pi); | ^^^^^----------------------- @@ -81,7 +81,7 @@ LL | let _ = cond.then(|| astronomers_pi); | help: use `then_some(..)` instead: `then_some(astronomers_pi)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:61:13 + --> $DIR/unnecessary_lazy_eval.rs:69:13 | LL | let _ = Some(10).unwrap_or_else(|| 2); | ^^^^^^^^^-------------------- @@ -89,7 +89,7 @@ LL | let _ = Some(10).unwrap_or_else(|| 2); | help: use `unwrap_or(..)` instead: `unwrap_or(2)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:62:13 + --> $DIR/unnecessary_lazy_eval.rs:70:13 | LL | let _ = Some(10).and_then(|_| ext_opt); | ^^^^^^^^^--------------------- @@ -97,7 +97,7 @@ LL | let _ = Some(10).and_then(|_| ext_opt); | help: use `and(..)` instead: `and(ext_opt)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:63:28 + --> $DIR/unnecessary_lazy_eval.rs:71:28 | LL | let _: Option<usize> = None.or_else(|| ext_opt); | ^^^^^------------------- @@ -105,7 +105,7 @@ LL | let _: Option<usize> = None.or_else(|| ext_opt); | help: use `or(..)` instead: `or(ext_opt)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:64:13 + --> $DIR/unnecessary_lazy_eval.rs:72:13 | LL | let _ = None.get_or_insert_with(|| 2); | ^^^^^------------------------ @@ -113,7 +113,7 @@ LL | let _ = None.get_or_insert_with(|| 2); | help: use `get_or_insert(..)` instead: `get_or_insert(2)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:65:35 + --> $DIR/unnecessary_lazy_eval.rs:73:35 | LL | let _: Result<usize, usize> = None.ok_or_else(|| 2); | ^^^^^---------------- @@ -121,7 +121,7 @@ LL | let _: Result<usize, usize> = None.ok_or_else(|| 2); | help: use `ok_or(..)` instead: `ok_or(2)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:66:28 + --> $DIR/unnecessary_lazy_eval.rs:74:28 | LL | let _: Option<usize> = None.or_else(|| None); | ^^^^^---------------- @@ -129,7 +129,7 @@ LL | let _: Option<usize> = None.or_else(|| None); | help: use `or(..)` instead: `or(None)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:69:13 + --> $DIR/unnecessary_lazy_eval.rs:77:13 | LL | let _ = deep.0.unwrap_or_else(|| 2); | ^^^^^^^-------------------- @@ -137,7 +137,7 @@ LL | let _ = deep.0.unwrap_or_else(|| 2); | help: use `unwrap_or(..)` instead: `unwrap_or(2)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:70:13 + --> $DIR/unnecessary_lazy_eval.rs:78:13 | LL | let _ = deep.0.and_then(|_| ext_opt); | ^^^^^^^--------------------- @@ -145,7 +145,7 @@ LL | let _ = deep.0.and_then(|_| ext_opt); | help: use `and(..)` instead: `and(ext_opt)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:71:13 + --> $DIR/unnecessary_lazy_eval.rs:79:13 | LL | let _ = deep.0.or_else(|| None); | ^^^^^^^---------------- @@ -153,7 +153,7 @@ LL | let _ = deep.0.or_else(|| None); | help: use `or(..)` instead: `or(None)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:72:13 + --> $DIR/unnecessary_lazy_eval.rs:80:13 | LL | let _ = deep.0.get_or_insert_with(|| 2); | ^^^^^^^------------------------ @@ -161,7 +161,7 @@ LL | let _ = deep.0.get_or_insert_with(|| 2); | help: use `get_or_insert(..)` instead: `get_or_insert(2)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:73:13 + --> $DIR/unnecessary_lazy_eval.rs:81:13 | LL | let _ = deep.0.ok_or_else(|| 2); | ^^^^^^^---------------- @@ -169,7 +169,7 @@ LL | let _ = deep.0.ok_or_else(|| 2); | help: use `ok_or(..)` instead: `ok_or(2)` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:96:28 + --> $DIR/unnecessary_lazy_eval.rs:105:28 | LL | let _: Option<usize> = None.or_else(|| Some(3)); | ^^^^^------------------- @@ -177,7 +177,7 @@ LL | let _: Option<usize> = None.or_else(|| Some(3)); | help: use `or(..)` instead: `or(Some(3))` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:97:13 + --> $DIR/unnecessary_lazy_eval.rs:106:13 | LL | let _ = deep.0.or_else(|| Some(3)); | ^^^^^^^------------------- @@ -185,7 +185,7 @@ LL | let _ = deep.0.or_else(|| Some(3)); | help: use `or(..)` instead: `or(Some(3))` error: unnecessary closure used to substitute value for `Option::None` - --> $DIR/unnecessary_lazy_eval.rs:98:13 + --> $DIR/unnecessary_lazy_eval.rs:107:13 | LL | let _ = opt.or_else(|| Some(3)); | ^^^^------------------- @@ -193,7 +193,7 @@ LL | let _ = opt.or_else(|| Some(3)); | help: use `or(..)` instead: `or(Some(3))` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:104:13 + --> $DIR/unnecessary_lazy_eval.rs:113:13 | LL | let _ = res2.unwrap_or_else(|_| 2); | ^^^^^--------------------- @@ -201,7 +201,7 @@ LL | let _ = res2.unwrap_or_else(|_| 2); | help: use `unwrap_or(..)` instead: `unwrap_or(2)` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:105:13 + --> $DIR/unnecessary_lazy_eval.rs:114:13 | LL | let _ = res2.unwrap_or_else(|_| astronomers_pi); | ^^^^^---------------------------------- @@ -209,7 +209,7 @@ LL | let _ = res2.unwrap_or_else(|_| astronomers_pi); | help: use `unwrap_or(..)` instead: `unwrap_or(astronomers_pi)` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:106:13 + --> $DIR/unnecessary_lazy_eval.rs:115:13 | LL | let _ = res2.unwrap_or_else(|_| ext_str.some_field); | ^^^^^-------------------------------------- @@ -217,7 +217,7 @@ LL | let _ = res2.unwrap_or_else(|_| ext_str.some_field); | help: use `unwrap_or(..)` instead: `unwrap_or(ext_str.some_field)` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:128:35 + --> $DIR/unnecessary_lazy_eval.rs:137:35 | LL | let _: Result<usize, usize> = res.and_then(|_| Err(2)); | ^^^^-------------------- @@ -225,7 +225,7 @@ LL | let _: Result<usize, usize> = res.and_then(|_| Err(2)); | help: use `and(..)` instead: `and(Err(2))` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:129:35 + --> $DIR/unnecessary_lazy_eval.rs:138:35 | LL | let _: Result<usize, usize> = res.and_then(|_| Err(astronomers_pi)); | ^^^^--------------------------------- @@ -233,7 +233,7 @@ LL | let _: Result<usize, usize> = res.and_then(|_| Err(astronomers_pi)); | help: use `and(..)` instead: `and(Err(astronomers_pi))` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:130:35 + --> $DIR/unnecessary_lazy_eval.rs:139:35 | LL | let _: Result<usize, usize> = res.and_then(|_| Err(ext_str.some_field)); | ^^^^------------------------------------- @@ -241,7 +241,7 @@ LL | let _: Result<usize, usize> = res.and_then(|_| Err(ext_str.some_field)) | help: use `and(..)` instead: `and(Err(ext_str.some_field))` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:132:35 + --> $DIR/unnecessary_lazy_eval.rs:141:35 | LL | let _: Result<usize, usize> = res.or_else(|_| Ok(2)); | ^^^^------------------ @@ -249,7 +249,7 @@ LL | let _: Result<usize, usize> = res.or_else(|_| Ok(2)); | help: use `or(..)` instead: `or(Ok(2))` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:133:35 + --> $DIR/unnecessary_lazy_eval.rs:142:35 | LL | let _: Result<usize, usize> = res.or_else(|_| Ok(astronomers_pi)); | ^^^^------------------------------- @@ -257,7 +257,7 @@ LL | let _: Result<usize, usize> = res.or_else(|_| Ok(astronomers_pi)); | help: use `or(..)` instead: `or(Ok(astronomers_pi))` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:134:35 + --> $DIR/unnecessary_lazy_eval.rs:143:35 | LL | let _: Result<usize, usize> = res.or_else(|_| Ok(ext_str.some_field)); | ^^^^----------------------------------- @@ -265,19 +265,19 @@ LL | let _: Result<usize, usize> = res.or_else(|_| Ok(ext_str.some_field)); | help: use `or(..)` instead: `or(Ok(ext_str.some_field))` error: unnecessary closure used to substitute value for `Result::Err` - --> $DIR/unnecessary_lazy_eval.rs:135:35 + --> $DIR/unnecessary_lazy_eval.rs:144:35 | LL | let _: Result<usize, usize> = res. | ___________________________________^ -LL | | // some lines -LL | | // some lines -LL | | // some lines +LL | | // some lines +LL | | // some lines +LL | | // some lines ... | -LL | | // some lines -LL | | or_else(|_| Ok(ext_str.some_field)); - | |_________----------------------------------^ - | | - | help: use `or(..)` instead: `or(Ok(ext_str.some_field))` +LL | | // some lines +LL | | or_else(|_| Ok(ext_str.some_field)); + | |_____----------------------------------^ + | | + | help: use `or(..)` instead: `or(Ok(ext_str.some_field))` error: aborting due to 34 previous errors diff --git a/src/tools/clippy/tests/ui/unnecessary_operation.fixed b/src/tools/clippy/tests/ui/unnecessary_operation.fixed index bf0ec8deb34..d37163570ab 100644 --- a/src/tools/clippy/tests/ui/unnecessary_operation.fixed +++ b/src/tools/clippy/tests/ui/unnecessary_operation.fixed @@ -76,4 +76,13 @@ fn main() { DropStruct { ..get_drop_struct() }; DropEnum::Tuple(get_number()); DropEnum::Struct { field: get_number() }; + + // Issue #9954 + fn one() -> i8 { + 1 + } + macro_rules! use_expr { + ($($e:expr),*) => {{ $($e;)* }} + } + use_expr!(isize::MIN / -(one() as isize), i8::MIN / -one()); } diff --git a/src/tools/clippy/tests/ui/unnecessary_operation.rs b/src/tools/clippy/tests/ui/unnecessary_operation.rs index 08cb9ab522e..a14fd4bca0e 100644 --- a/src/tools/clippy/tests/ui/unnecessary_operation.rs +++ b/src/tools/clippy/tests/ui/unnecessary_operation.rs @@ -80,4 +80,13 @@ fn main() { DropStruct { ..get_drop_struct() }; DropEnum::Tuple(get_number()); DropEnum::Struct { field: get_number() }; + + // Issue #9954 + fn one() -> i8 { + 1 + } + macro_rules! use_expr { + ($($e:expr),*) => {{ $($e;)* }} + } + use_expr!(isize::MIN / -(one() as isize), i8::MIN / -one()); } diff --git a/src/tools/clippy/tests/ui/unnecessary_safety_comment.rs b/src/tools/clippy/tests/ui/unnecessary_safety_comment.rs new file mode 100644 index 00000000000..7fefea7051d --- /dev/null +++ b/src/tools/clippy/tests/ui/unnecessary_safety_comment.rs @@ -0,0 +1,51 @@ +#![warn(clippy::undocumented_unsafe_blocks, clippy::unnecessary_safety_comment)] +#![allow(clippy::let_unit_value, clippy::missing_safety_doc)] + +mod unsafe_items_invalid_comment { + // SAFETY: + const CONST: u32 = 0; + // SAFETY: + static STATIC: u32 = 0; + // SAFETY: + struct Struct; + // SAFETY: + enum Enum {} + // SAFETY: + mod module {} +} + +mod unnecessary_from_macro { + trait T {} + + macro_rules! no_safety_comment { + ($t:ty) => { + impl T for $t {} + }; + } + + // FIXME: This is not caught + // Safety: unnecessary + no_safety_comment!(()); + + macro_rules! with_safety_comment { + ($t:ty) => { + // Safety: unnecessary + impl T for $t {} + }; + } + + with_safety_comment!(i32); +} + +fn unnecessary_on_stmt_and_expr() -> u32 { + // SAFETY: unnecessary + let num = 42; + + // SAFETY: unnecessary + if num > 24 {} + + // SAFETY: unnecessary + 24 +} + +fn main() {} diff --git a/src/tools/clippy/tests/ui/unnecessary_safety_comment.stderr b/src/tools/clippy/tests/ui/unnecessary_safety_comment.stderr new file mode 100644 index 00000000000..7b2af67d64c --- /dev/null +++ b/src/tools/clippy/tests/ui/unnecessary_safety_comment.stderr @@ -0,0 +1,115 @@ +error: constant item has unnecessary safety comment + --> $DIR/unnecessary_safety_comment.rs:6:5 + | +LL | const CONST: u32 = 0; + | ^^^^^^^^^^^^^^^^^^^^^ + | +help: consider removing the safety comment + --> $DIR/unnecessary_safety_comment.rs:5:5 + | +LL | // SAFETY: + | ^^^^^^^^^^ + = note: `-D clippy::unnecessary-safety-comment` implied by `-D warnings` + +error: static item has unnecessary safety comment + --> $DIR/unnecessary_safety_comment.rs:8:5 + | +LL | static STATIC: u32 = 0; + | ^^^^^^^^^^^^^^^^^^^^^^^ + | +help: consider removing the safety comment + --> $DIR/unnecessary_safety_comment.rs:7:5 + | +LL | // SAFETY: + | ^^^^^^^^^^ + +error: struct has unnecessary safety comment + --> $DIR/unnecessary_safety_comment.rs:10:5 + | +LL | struct Struct; + | ^^^^^^^^^^^^^^ + | +help: consider removing the safety comment + --> $DIR/unnecessary_safety_comment.rs:9:5 + | +LL | // SAFETY: + | ^^^^^^^^^^ + +error: enum has unnecessary safety comment + --> $DIR/unnecessary_safety_comment.rs:12:5 + | +LL | enum Enum {} + | ^^^^^^^^^^^^ + | +help: consider removing the safety comment + --> $DIR/unnecessary_safety_comment.rs:11:5 + | +LL | // SAFETY: + | ^^^^^^^^^^ + +error: module has unnecessary safety comment + --> $DIR/unnecessary_safety_comment.rs:14:5 + | +LL | mod module {} + | ^^^^^^^^^^^^^ + | +help: consider removing the safety comment + --> $DIR/unnecessary_safety_comment.rs:13:5 + | +LL | // SAFETY: + | ^^^^^^^^^^ + +error: impl has unnecessary safety comment + --> $DIR/unnecessary_safety_comment.rs:33:13 + | +LL | impl T for $t {} + | ^^^^^^^^^^^^^^^^ +... +LL | with_safety_comment!(i32); + | ------------------------- in this macro invocation + | +help: consider removing the safety comment + --> $DIR/unnecessary_safety_comment.rs:32:13 + | +LL | // Safety: unnecessary + | ^^^^^^^^^^^^^^^^^^^^^^ + = note: this error originates in the macro `with_safety_comment` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: expression has unnecessary safety comment + --> $DIR/unnecessary_safety_comment.rs:48:5 + | +LL | 24 + | ^^ + | +help: consider removing the safety comment + --> $DIR/unnecessary_safety_comment.rs:47:5 + | +LL | // SAFETY: unnecessary + | ^^^^^^^^^^^^^^^^^^^^^^ + +error: statement has unnecessary safety comment + --> $DIR/unnecessary_safety_comment.rs:42:5 + | +LL | let num = 42; + | ^^^^^^^^^^^^^ + | +help: consider removing the safety comment + --> $DIR/unnecessary_safety_comment.rs:41:5 + | +LL | // SAFETY: unnecessary + | ^^^^^^^^^^^^^^^^^^^^^^ + +error: statement has unnecessary safety comment + --> $DIR/unnecessary_safety_comment.rs:45:5 + | +LL | if num > 24 {} + | ^^^^^^^^^^^^^^ + | +help: consider removing the safety comment + --> $DIR/unnecessary_safety_comment.rs:44:5 + | +LL | // SAFETY: unnecessary + | ^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 9 previous errors + diff --git a/src/tools/clippy/tests/ui/unnecessary_to_owned.fixed b/src/tools/clippy/tests/ui/unnecessary_to_owned.fixed index fe09aad06bc..ddeda795f81 100644 --- a/src/tools/clippy/tests/ui/unnecessary_to_owned.fixed +++ b/src/tools/clippy/tests/ui/unnecessary_to_owned.fixed @@ -2,7 +2,6 @@ #![allow(clippy::needless_borrow, clippy::ptr_arg)] #![warn(clippy::unnecessary_to_owned)] -#![feature(custom_inner_attributes)] use std::borrow::Cow; use std::ffi::{CStr, CString, OsStr, OsString}; @@ -215,14 +214,14 @@ fn get_file_path(_file_type: &FileType) -> Result<std::path::PathBuf, std::io::E fn require_string(_: &String) {} +#[clippy::msrv = "1.35"] fn _msrv_1_35() { - #![clippy::msrv = "1.35"] // `copied` was stabilized in 1.36, so clippy should use `cloned`. let _ = &["x"][..].iter().cloned(); } +#[clippy::msrv = "1.36"] fn _msrv_1_36() { - #![clippy::msrv = "1.36"] let _ = &["x"][..].iter().copied(); } @@ -426,3 +425,32 @@ mod issue_9504 { foo(std::path::PathBuf::new().to_string_lossy().to_string()).await; } } + +mod issue_9771a { + #![allow(dead_code)] + + use std::marker::PhantomData; + + pub struct Key<K: AsRef<[u8]>, V: ?Sized>(K, PhantomData<V>); + + impl<K: AsRef<[u8]>, V: ?Sized> Key<K, V> { + pub fn new(key: K) -> Key<K, V> { + Key(key, PhantomData) + } + } + + pub fn pkh(pkh: &[u8]) -> Key<Vec<u8>, String> { + Key::new([b"pkh-", pkh].concat().to_vec()) + } +} + +mod issue_9771b { + #![allow(dead_code)] + + pub struct Key<K: AsRef<[u8]>>(K); + + pub fn from(c: &[u8]) -> Key<Vec<u8>> { + let v = [c].concat(); + Key(v.to_vec()) + } +} diff --git a/src/tools/clippy/tests/ui/unnecessary_to_owned.rs b/src/tools/clippy/tests/ui/unnecessary_to_owned.rs index 3de6d0903c0..95d2576733c 100644 --- a/src/tools/clippy/tests/ui/unnecessary_to_owned.rs +++ b/src/tools/clippy/tests/ui/unnecessary_to_owned.rs @@ -2,7 +2,6 @@ #![allow(clippy::needless_borrow, clippy::ptr_arg)] #![warn(clippy::unnecessary_to_owned)] -#![feature(custom_inner_attributes)] use std::borrow::Cow; use std::ffi::{CStr, CString, OsStr, OsString}; @@ -215,14 +214,14 @@ fn get_file_path(_file_type: &FileType) -> Result<std::path::PathBuf, std::io::E fn require_string(_: &String) {} +#[clippy::msrv = "1.35"] fn _msrv_1_35() { - #![clippy::msrv = "1.35"] // `copied` was stabilized in 1.36, so clippy should use `cloned`. let _ = &["x"][..].to_vec().into_iter(); } +#[clippy::msrv = "1.36"] fn _msrv_1_36() { - #![clippy::msrv = "1.36"] let _ = &["x"][..].to_vec().into_iter(); } @@ -426,3 +425,32 @@ mod issue_9504 { foo(std::path::PathBuf::new().to_string_lossy().to_string()).await; } } + +mod issue_9771a { + #![allow(dead_code)] + + use std::marker::PhantomData; + + pub struct Key<K: AsRef<[u8]>, V: ?Sized>(K, PhantomData<V>); + + impl<K: AsRef<[u8]>, V: ?Sized> Key<K, V> { + pub fn new(key: K) -> Key<K, V> { + Key(key, PhantomData) + } + } + + pub fn pkh(pkh: &[u8]) -> Key<Vec<u8>, String> { + Key::new([b"pkh-", pkh].concat().to_vec()) + } +} + +mod issue_9771b { + #![allow(dead_code)] + + pub struct Key<K: AsRef<[u8]>>(K); + + pub fn from(c: &[u8]) -> Key<Vec<u8>> { + let v = [c].concat(); + Key(v.to_vec()) + } +} diff --git a/src/tools/clippy/tests/ui/unnecessary_to_owned.stderr b/src/tools/clippy/tests/ui/unnecessary_to_owned.stderr index 02bf45a33fb..4918fe35598 100644 --- a/src/tools/clippy/tests/ui/unnecessary_to_owned.stderr +++ b/src/tools/clippy/tests/ui/unnecessary_to_owned.stderr @@ -1,66 +1,66 @@ error: redundant clone - --> $DIR/unnecessary_to_owned.rs:151:64 + --> $DIR/unnecessary_to_owned.rs:150:64 | LL | require_c_str(&CString::from_vec_with_nul(vec![0]).unwrap().to_owned()); | ^^^^^^^^^^^ help: remove this | note: this value is dropped without further use - --> $DIR/unnecessary_to_owned.rs:151:20 + --> $DIR/unnecessary_to_owned.rs:150:20 | LL | require_c_str(&CString::from_vec_with_nul(vec![0]).unwrap().to_owned()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: `-D clippy::redundant-clone` implied by `-D warnings` error: redundant clone - --> $DIR/unnecessary_to_owned.rs:152:40 + --> $DIR/unnecessary_to_owned.rs:151:40 | LL | require_os_str(&OsString::from("x").to_os_string()); | ^^^^^^^^^^^^^^^ help: remove this | note: this value is dropped without further use - --> $DIR/unnecessary_to_owned.rs:152:21 + --> $DIR/unnecessary_to_owned.rs:151:21 | LL | require_os_str(&OsString::from("x").to_os_string()); | ^^^^^^^^^^^^^^^^^^^ error: redundant clone - --> $DIR/unnecessary_to_owned.rs:153:48 + --> $DIR/unnecessary_to_owned.rs:152:48 | LL | require_path(&std::path::PathBuf::from("x").to_path_buf()); | ^^^^^^^^^^^^^^ help: remove this | note: this value is dropped without further use - --> $DIR/unnecessary_to_owned.rs:153:19 + --> $DIR/unnecessary_to_owned.rs:152:19 | LL | require_path(&std::path::PathBuf::from("x").to_path_buf()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: redundant clone - --> $DIR/unnecessary_to_owned.rs:154:35 + --> $DIR/unnecessary_to_owned.rs:153:35 | LL | require_str(&String::from("x").to_string()); | ^^^^^^^^^^^^ help: remove this | note: this value is dropped without further use - --> $DIR/unnecessary_to_owned.rs:154:18 + --> $DIR/unnecessary_to_owned.rs:153:18 | LL | require_str(&String::from("x").to_string()); | ^^^^^^^^^^^^^^^^^ error: redundant clone - --> $DIR/unnecessary_to_owned.rs:155:39 + --> $DIR/unnecessary_to_owned.rs:154:39 | LL | require_slice(&[String::from("x")].to_owned()); | ^^^^^^^^^^^ help: remove this | note: this value is dropped without further use - --> $DIR/unnecessary_to_owned.rs:155:20 + --> $DIR/unnecessary_to_owned.rs:154:20 | LL | require_slice(&[String::from("x")].to_owned()); | ^^^^^^^^^^^^^^^^^^^ error: unnecessary use of `into_owned` - --> $DIR/unnecessary_to_owned.rs:60:36 + --> $DIR/unnecessary_to_owned.rs:59:36 | LL | require_c_str(&Cow::from(c_str).into_owned()); | ^^^^^^^^^^^^^ help: remove this @@ -68,415 +68,415 @@ LL | require_c_str(&Cow::from(c_str).into_owned()); = note: `-D clippy::unnecessary-to-owned` implied by `-D warnings` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:61:19 + --> $DIR/unnecessary_to_owned.rs:60:19 | LL | require_c_str(&c_str.to_owned()); | ^^^^^^^^^^^^^^^^^ help: use: `c_str` error: unnecessary use of `to_os_string` - --> $DIR/unnecessary_to_owned.rs:63:20 + --> $DIR/unnecessary_to_owned.rs:62:20 | LL | require_os_str(&os_str.to_os_string()); | ^^^^^^^^^^^^^^^^^^^^^^ help: use: `os_str` error: unnecessary use of `into_owned` - --> $DIR/unnecessary_to_owned.rs:64:38 + --> $DIR/unnecessary_to_owned.rs:63:38 | LL | require_os_str(&Cow::from(os_str).into_owned()); | ^^^^^^^^^^^^^ help: remove this error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:65:20 + --> $DIR/unnecessary_to_owned.rs:64:20 | LL | require_os_str(&os_str.to_owned()); | ^^^^^^^^^^^^^^^^^^ help: use: `os_str` error: unnecessary use of `to_path_buf` - --> $DIR/unnecessary_to_owned.rs:67:18 + --> $DIR/unnecessary_to_owned.rs:66:18 | LL | require_path(&path.to_path_buf()); | ^^^^^^^^^^^^^^^^^^^ help: use: `path` error: unnecessary use of `into_owned` - --> $DIR/unnecessary_to_owned.rs:68:34 + --> $DIR/unnecessary_to_owned.rs:67:34 | LL | require_path(&Cow::from(path).into_owned()); | ^^^^^^^^^^^^^ help: remove this error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:69:18 + --> $DIR/unnecessary_to_owned.rs:68:18 | LL | require_path(&path.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `path` error: unnecessary use of `to_string` - --> $DIR/unnecessary_to_owned.rs:71:17 + --> $DIR/unnecessary_to_owned.rs:70:17 | LL | require_str(&s.to_string()); | ^^^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `into_owned` - --> $DIR/unnecessary_to_owned.rs:72:30 + --> $DIR/unnecessary_to_owned.rs:71:30 | LL | require_str(&Cow::from(s).into_owned()); | ^^^^^^^^^^^^^ help: remove this error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:73:17 + --> $DIR/unnecessary_to_owned.rs:72:17 | LL | require_str(&s.to_owned()); | ^^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_string` - --> $DIR/unnecessary_to_owned.rs:74:17 + --> $DIR/unnecessary_to_owned.rs:73:17 | LL | require_str(&x_ref.to_string()); | ^^^^^^^^^^^^^^^^^^ help: use: `x_ref.as_ref()` error: unnecessary use of `to_vec` - --> $DIR/unnecessary_to_owned.rs:76:19 + --> $DIR/unnecessary_to_owned.rs:75:19 | LL | require_slice(&slice.to_vec()); | ^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `into_owned` - --> $DIR/unnecessary_to_owned.rs:77:36 + --> $DIR/unnecessary_to_owned.rs:76:36 | LL | require_slice(&Cow::from(slice).into_owned()); | ^^^^^^^^^^^^^ help: remove this error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:78:19 + --> $DIR/unnecessary_to_owned.rs:77:19 | LL | require_slice(&array.to_owned()); | ^^^^^^^^^^^^^^^^^ help: use: `array.as_ref()` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:79:19 + --> $DIR/unnecessary_to_owned.rs:78:19 | LL | require_slice(&array_ref.to_owned()); | ^^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref.as_ref()` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:80:19 + --> $DIR/unnecessary_to_owned.rs:79:19 | LL | require_slice(&slice.to_owned()); | ^^^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `into_owned` - --> $DIR/unnecessary_to_owned.rs:83:42 + --> $DIR/unnecessary_to_owned.rs:82:42 | LL | require_x(&Cow::<X>::Owned(x.clone()).into_owned()); | ^^^^^^^^^^^^^ help: remove this error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:86:25 + --> $DIR/unnecessary_to_owned.rs:85:25 | LL | require_deref_c_str(c_str.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `c_str` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:87:26 + --> $DIR/unnecessary_to_owned.rs:86:26 | LL | require_deref_os_str(os_str.to_owned()); | ^^^^^^^^^^^^^^^^^ help: use: `os_str` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:88:24 + --> $DIR/unnecessary_to_owned.rs:87:24 | LL | require_deref_path(path.to_owned()); | ^^^^^^^^^^^^^^^ help: use: `path` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:89:23 + --> $DIR/unnecessary_to_owned.rs:88:23 | LL | require_deref_str(s.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:90:25 + --> $DIR/unnecessary_to_owned.rs:89:25 | LL | require_deref_slice(slice.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:92:30 + --> $DIR/unnecessary_to_owned.rs:91:30 | LL | require_impl_deref_c_str(c_str.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `c_str` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:93:31 + --> $DIR/unnecessary_to_owned.rs:92:31 | LL | require_impl_deref_os_str(os_str.to_owned()); | ^^^^^^^^^^^^^^^^^ help: use: `os_str` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:94:29 + --> $DIR/unnecessary_to_owned.rs:93:29 | LL | require_impl_deref_path(path.to_owned()); | ^^^^^^^^^^^^^^^ help: use: `path` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:95:28 + --> $DIR/unnecessary_to_owned.rs:94:28 | LL | require_impl_deref_str(s.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:96:30 + --> $DIR/unnecessary_to_owned.rs:95:30 | LL | require_impl_deref_slice(slice.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:98:29 + --> $DIR/unnecessary_to_owned.rs:97:29 | LL | require_deref_str_slice(s.to_owned(), slice.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:98:43 + --> $DIR/unnecessary_to_owned.rs:97:43 | LL | require_deref_str_slice(s.to_owned(), slice.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:99:29 + --> $DIR/unnecessary_to_owned.rs:98:29 | LL | require_deref_slice_str(slice.to_owned(), s.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:99:47 + --> $DIR/unnecessary_to_owned.rs:98:47 | LL | require_deref_slice_str(slice.to_owned(), s.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:101:26 + --> $DIR/unnecessary_to_owned.rs:100:26 | LL | require_as_ref_c_str(c_str.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `c_str` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:102:27 + --> $DIR/unnecessary_to_owned.rs:101:27 | LL | require_as_ref_os_str(os_str.to_owned()); | ^^^^^^^^^^^^^^^^^ help: use: `os_str` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:103:25 + --> $DIR/unnecessary_to_owned.rs:102:25 | LL | require_as_ref_path(path.to_owned()); | ^^^^^^^^^^^^^^^ help: use: `path` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:104:24 + --> $DIR/unnecessary_to_owned.rs:103:24 | LL | require_as_ref_str(s.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:105:24 + --> $DIR/unnecessary_to_owned.rs:104:24 | LL | require_as_ref_str(x.to_owned()); | ^^^^^^^^^^^^ help: use: `&x` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:106:26 + --> $DIR/unnecessary_to_owned.rs:105:26 | LL | require_as_ref_slice(array.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `array` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:107:26 + --> $DIR/unnecessary_to_owned.rs:106:26 | LL | require_as_ref_slice(array_ref.to_owned()); | ^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:108:26 + --> $DIR/unnecessary_to_owned.rs:107:26 | LL | require_as_ref_slice(slice.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:110:31 + --> $DIR/unnecessary_to_owned.rs:109:31 | LL | require_impl_as_ref_c_str(c_str.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `c_str` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:111:32 + --> $DIR/unnecessary_to_owned.rs:110:32 | LL | require_impl_as_ref_os_str(os_str.to_owned()); | ^^^^^^^^^^^^^^^^^ help: use: `os_str` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:112:30 + --> $DIR/unnecessary_to_owned.rs:111:30 | LL | require_impl_as_ref_path(path.to_owned()); | ^^^^^^^^^^^^^^^ help: use: `path` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:113:29 + --> $DIR/unnecessary_to_owned.rs:112:29 | LL | require_impl_as_ref_str(s.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:114:29 + --> $DIR/unnecessary_to_owned.rs:113:29 | LL | require_impl_as_ref_str(x.to_owned()); | ^^^^^^^^^^^^ help: use: `&x` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:115:31 + --> $DIR/unnecessary_to_owned.rs:114:31 | LL | require_impl_as_ref_slice(array.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `array` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:116:31 + --> $DIR/unnecessary_to_owned.rs:115:31 | LL | require_impl_as_ref_slice(array_ref.to_owned()); | ^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:117:31 + --> $DIR/unnecessary_to_owned.rs:116:31 | LL | require_impl_as_ref_slice(slice.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:119:30 + --> $DIR/unnecessary_to_owned.rs:118:30 | LL | require_as_ref_str_slice(s.to_owned(), array.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:119:44 + --> $DIR/unnecessary_to_owned.rs:118:44 | LL | require_as_ref_str_slice(s.to_owned(), array.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `array` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:120:30 + --> $DIR/unnecessary_to_owned.rs:119:30 | LL | require_as_ref_str_slice(s.to_owned(), array_ref.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:120:44 + --> $DIR/unnecessary_to_owned.rs:119:44 | LL | require_as_ref_str_slice(s.to_owned(), array_ref.to_owned()); | ^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:121:30 + --> $DIR/unnecessary_to_owned.rs:120:30 | LL | require_as_ref_str_slice(s.to_owned(), slice.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:121:44 + --> $DIR/unnecessary_to_owned.rs:120:44 | LL | require_as_ref_str_slice(s.to_owned(), slice.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:122:30 + --> $DIR/unnecessary_to_owned.rs:121:30 | LL | require_as_ref_slice_str(array.to_owned(), s.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `array` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:122:48 + --> $DIR/unnecessary_to_owned.rs:121:48 | LL | require_as_ref_slice_str(array.to_owned(), s.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:123:30 + --> $DIR/unnecessary_to_owned.rs:122:30 | LL | require_as_ref_slice_str(array_ref.to_owned(), s.to_owned()); | ^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:123:52 + --> $DIR/unnecessary_to_owned.rs:122:52 | LL | require_as_ref_slice_str(array_ref.to_owned(), s.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:124:30 + --> $DIR/unnecessary_to_owned.rs:123:30 | LL | require_as_ref_slice_str(slice.to_owned(), s.to_owned()); | ^^^^^^^^^^^^^^^^ help: use: `slice` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:124:48 + --> $DIR/unnecessary_to_owned.rs:123:48 | LL | require_as_ref_slice_str(slice.to_owned(), s.to_owned()); | ^^^^^^^^^^^^ help: use: `s` error: unnecessary use of `to_string` - --> $DIR/unnecessary_to_owned.rs:126:20 + --> $DIR/unnecessary_to_owned.rs:125:20 | LL | let _ = x.join(&x_ref.to_string()); | ^^^^^^^^^^^^^^^^^^ help: use: `x_ref` error: unnecessary use of `to_vec` - --> $DIR/unnecessary_to_owned.rs:128:13 + --> $DIR/unnecessary_to_owned.rs:127:13 | LL | let _ = slice.to_vec().into_iter(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `slice.iter().copied()` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:129:13 + --> $DIR/unnecessary_to_owned.rs:128:13 | LL | let _ = slice.to_owned().into_iter(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `slice.iter().copied()` error: unnecessary use of `to_vec` - --> $DIR/unnecessary_to_owned.rs:130:13 + --> $DIR/unnecessary_to_owned.rs:129:13 | LL | let _ = [std::path::PathBuf::new()][..].to_vec().into_iter(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `[std::path::PathBuf::new()][..].iter().cloned()` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:131:13 + --> $DIR/unnecessary_to_owned.rs:130:13 | LL | let _ = [std::path::PathBuf::new()][..].to_owned().into_iter(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `[std::path::PathBuf::new()][..].iter().cloned()` error: unnecessary use of `to_vec` - --> $DIR/unnecessary_to_owned.rs:133:13 + --> $DIR/unnecessary_to_owned.rs:132:13 | LL | let _ = IntoIterator::into_iter(slice.to_vec()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `slice.iter().copied()` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:134:13 + --> $DIR/unnecessary_to_owned.rs:133:13 | LL | let _ = IntoIterator::into_iter(slice.to_owned()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `slice.iter().copied()` error: unnecessary use of `to_vec` - --> $DIR/unnecessary_to_owned.rs:135:13 + --> $DIR/unnecessary_to_owned.rs:134:13 | LL | let _ = IntoIterator::into_iter([std::path::PathBuf::new()][..].to_vec()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `[std::path::PathBuf::new()][..].iter().cloned()` error: unnecessary use of `to_owned` - --> $DIR/unnecessary_to_owned.rs:136:13 + --> $DIR/unnecessary_to_owned.rs:135:13 | LL | let _ = IntoIterator::into_iter([std::path::PathBuf::new()][..].to_owned()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `[std::path::PathBuf::new()][..].iter().cloned()` error: unnecessary use of `to_vec` - --> $DIR/unnecessary_to_owned.rs:198:14 + --> $DIR/unnecessary_to_owned.rs:197:14 | LL | for t in file_types.to_vec() { | ^^^^^^^^^^^^^^^^^^^ @@ -492,25 +492,25 @@ LL + let path = match get_file_path(t) { | error: unnecessary use of `to_vec` - --> $DIR/unnecessary_to_owned.rs:221:14 + --> $DIR/unnecessary_to_owned.rs:220:14 | LL | let _ = &["x"][..].to_vec().into_iter(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `["x"][..].iter().cloned()` error: unnecessary use of `to_vec` - --> $DIR/unnecessary_to_owned.rs:226:14 + --> $DIR/unnecessary_to_owned.rs:225:14 | LL | let _ = &["x"][..].to_vec().into_iter(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `["x"][..].iter().copied()` error: unnecessary use of `to_string` - --> $DIR/unnecessary_to_owned.rs:273:24 + --> $DIR/unnecessary_to_owned.rs:272:24 | LL | Box::new(build(y.to_string())) | ^^^^^^^^^^^^^ help: use: `y` error: unnecessary use of `to_string` - --> $DIR/unnecessary_to_owned.rs:381:12 + --> $DIR/unnecessary_to_owned.rs:380:12 | LL | id("abc".to_string()) | ^^^^^^^^^^^^^^^^^ help: use: `"abc"` diff --git a/src/tools/clippy/tests/ui/doc_unnecessary_unsafe.rs b/src/tools/clippy/tests/ui/unnecessary_unsafety_doc.rs index d9e9363b0f4..c160e31afd3 100644 --- a/src/tools/clippy/tests/ui/doc_unnecessary_unsafe.rs +++ b/src/tools/clippy/tests/ui/unnecessary_unsafety_doc.rs @@ -1,6 +1,7 @@ // aux-build:doc_unsafe_macros.rs #![allow(clippy::let_unit_value)] +#![warn(clippy::unnecessary_safety_doc)] #[macro_use] extern crate doc_unsafe_macros; diff --git a/src/tools/clippy/tests/ui/doc_unnecessary_unsafe.stderr b/src/tools/clippy/tests/ui/unnecessary_unsafety_doc.stderr index 83b2efbb346..72898c93fa1 100644 --- a/src/tools/clippy/tests/ui/doc_unnecessary_unsafe.stderr +++ b/src/tools/clippy/tests/ui/unnecessary_unsafety_doc.stderr @@ -1,5 +1,5 @@ error: safe function's docs have unnecessary `# Safety` section - --> $DIR/doc_unnecessary_unsafe.rs:18:1 + --> $DIR/unnecessary_unsafety_doc.rs:19:1 | LL | pub fn apocalypse(universe: &mut ()) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -7,31 +7,31 @@ LL | pub fn apocalypse(universe: &mut ()) { = note: `-D clippy::unnecessary-safety-doc` implied by `-D warnings` error: safe function's docs have unnecessary `# Safety` section - --> $DIR/doc_unnecessary_unsafe.rs:44:5 + --> $DIR/unnecessary_unsafety_doc.rs:45:5 | LL | pub fn republished() { | ^^^^^^^^^^^^^^^^^^^^ error: safe function's docs have unnecessary `# Safety` section - --> $DIR/doc_unnecessary_unsafe.rs:57:5 + --> $DIR/unnecessary_unsafety_doc.rs:58:5 | LL | fn documented(self); | ^^^^^^^^^^^^^^^^^^^^ error: docs for safe trait have unnecessary `# Safety` section - --> $DIR/doc_unnecessary_unsafe.rs:67:1 + --> $DIR/unnecessary_unsafety_doc.rs:68:1 | LL | pub trait DocumentedSafeTrait { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: safe function's docs have unnecessary `# Safety` section - --> $DIR/doc_unnecessary_unsafe.rs:95:5 + --> $DIR/unnecessary_unsafety_doc.rs:96:5 | LL | pub fn documented() -> Self { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: safe function's docs have unnecessary `# Safety` section - --> $DIR/doc_unnecessary_unsafe.rs:122:9 + --> $DIR/unnecessary_unsafety_doc.rs:123:9 | LL | pub fn drive() { | ^^^^^^^^^^^^^^ @@ -42,7 +42,7 @@ LL | very_safe!(); = note: this error originates in the macro `very_safe` (in Nightly builds, run with -Z macro-backtrace for more info) error: docs for safe trait have unnecessary `# Safety` section - --> $DIR/doc_unnecessary_unsafe.rs:146:1 + --> $DIR/unnecessary_unsafety_doc.rs:147:1 | LL | pub trait DocumentedSafeTraitWithImplementationHeader { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/tools/clippy/tests/ui/unnested_or_patterns.fixed b/src/tools/clippy/tests/ui/unnested_or_patterns.fixed index 9786c7b1212..0a8e7b34dfa 100644 --- a/src/tools/clippy/tests/ui/unnested_or_patterns.fixed +++ b/src/tools/clippy/tests/ui/unnested_or_patterns.fixed @@ -1,6 +1,6 @@ // run-rustfix -#![feature(box_patterns, custom_inner_attributes)] +#![feature(box_patterns)] #![warn(clippy::unnested_or_patterns)] #![allow(clippy::cognitive_complexity, clippy::match_ref_pats, clippy::upper_case_acronyms)] #![allow(unreachable_patterns, irrefutable_let_patterns, unused)] @@ -34,14 +34,12 @@ fn main() { if let S { x: 0, y, .. } | S { y, x: 1 } = (S { x: 0, y: 1 }) {} } +#[clippy::msrv = "1.52"] fn msrv_1_52() { - #![clippy::msrv = "1.52"] - if let [1] | [52] = [0] {} } +#[clippy::msrv = "1.53"] fn msrv_1_53() { - #![clippy::msrv = "1.53"] - if let [1 | 53] = [0] {} } diff --git a/src/tools/clippy/tests/ui/unnested_or_patterns.rs b/src/tools/clippy/tests/ui/unnested_or_patterns.rs index f57322396d4..2c454adfe89 100644 --- a/src/tools/clippy/tests/ui/unnested_or_patterns.rs +++ b/src/tools/clippy/tests/ui/unnested_or_patterns.rs @@ -1,6 +1,6 @@ // run-rustfix -#![feature(box_patterns, custom_inner_attributes)] +#![feature(box_patterns)] #![warn(clippy::unnested_or_patterns)] #![allow(clippy::cognitive_complexity, clippy::match_ref_pats, clippy::upper_case_acronyms)] #![allow(unreachable_patterns, irrefutable_let_patterns, unused)] @@ -34,14 +34,12 @@ fn main() { if let S { x: 0, y, .. } | S { y, x: 1 } = (S { x: 0, y: 1 }) {} } +#[clippy::msrv = "1.52"] fn msrv_1_52() { - #![clippy::msrv = "1.52"] - if let [1] | [52] = [0] {} } +#[clippy::msrv = "1.53"] fn msrv_1_53() { - #![clippy::msrv = "1.53"] - if let [1] | [53] = [0] {} } diff --git a/src/tools/clippy/tests/ui/unnested_or_patterns.stderr b/src/tools/clippy/tests/ui/unnested_or_patterns.stderr index fbc12fff0b0..a1f193db555 100644 --- a/src/tools/clippy/tests/ui/unnested_or_patterns.stderr +++ b/src/tools/clippy/tests/ui/unnested_or_patterns.stderr @@ -176,7 +176,7 @@ LL | if let S { x: 0 | 1, y } = (S { x: 0, y: 1 }) {} | ~~~~~~~~~~~~~~~~~ error: unnested or-patterns - --> $DIR/unnested_or_patterns.rs:46:12 + --> $DIR/unnested_or_patterns.rs:44:12 | LL | if let [1] | [53] = [0] {} | ^^^^^^^^^^ diff --git a/src/tools/clippy/tests/ui/unused_rounding.fixed b/src/tools/clippy/tests/ui/unused_rounding.fixed index 38fe6c34cfe..f6f734c05ed 100644 --- a/src/tools/clippy/tests/ui/unused_rounding.fixed +++ b/src/tools/clippy/tests/ui/unused_rounding.fixed @@ -11,4 +11,7 @@ fn main() { let _ = 3.3_f32.round(); let _ = 3.3_f64.round(); let _ = 3.0_f32; + + let _ = 3_3.0_0_f32; + let _ = 3_3.0_1_f64.round(); } diff --git a/src/tools/clippy/tests/ui/unused_rounding.rs b/src/tools/clippy/tests/ui/unused_rounding.rs index a5cac64d023..a0267d8144a 100644 --- a/src/tools/clippy/tests/ui/unused_rounding.rs +++ b/src/tools/clippy/tests/ui/unused_rounding.rs @@ -11,4 +11,7 @@ fn main() { let _ = 3.3_f32.round(); let _ = 3.3_f64.round(); let _ = 3.0_f32.round(); + + let _ = 3_3.0_0_f32.round(); + let _ = 3_3.0_1_f64.round(); } diff --git a/src/tools/clippy/tests/ui/unused_rounding.stderr b/src/tools/clippy/tests/ui/unused_rounding.stderr index 1eeb5d1de88..b867996fe57 100644 --- a/src/tools/clippy/tests/ui/unused_rounding.stderr +++ b/src/tools/clippy/tests/ui/unused_rounding.stderr @@ -24,5 +24,11 @@ error: used the `round` method with a whole number float LL | let _ = 3.0_f32.round(); | ^^^^^^^^^^^^^^^ help: remove the `round` method call: `3.0_f32` -error: aborting due to 4 previous errors +error: used the `round` method with a whole number float + --> $DIR/unused_rounding.rs:15:13 + | +LL | let _ = 3_3.0_0_f32.round(); + | ^^^^^^^^^^^^^^^^^^^ help: remove the `round` method call: `3_3.0_0_f32` + +error: aborting due to 5 previous errors diff --git a/src/tools/clippy/tests/ui/use_self.fixed b/src/tools/clippy/tests/ui/use_self.fixed index 3b54fe9d5ff..0a6166571eb 100644 --- a/src/tools/clippy/tests/ui/use_self.fixed +++ b/src/tools/clippy/tests/ui/use_self.fixed @@ -1,7 +1,6 @@ // run-rustfix // aux-build:proc_macro_derive.rs -#![feature(custom_inner_attributes)] #![warn(clippy::use_self)] #![allow(dead_code, unreachable_code)] #![allow( @@ -619,9 +618,8 @@ mod issue6902 { } } +#[clippy::msrv = "1.36"] fn msrv_1_36() { - #![clippy::msrv = "1.36"] - enum E { A, } @@ -635,9 +633,8 @@ fn msrv_1_36() { } } +#[clippy::msrv = "1.37"] fn msrv_1_37() { - #![clippy::msrv = "1.37"] - enum E { A, } diff --git a/src/tools/clippy/tests/ui/use_self.rs b/src/tools/clippy/tests/ui/use_self.rs index bf87633cd2d..39c2b431f7f 100644 --- a/src/tools/clippy/tests/ui/use_self.rs +++ b/src/tools/clippy/tests/ui/use_self.rs @@ -1,7 +1,6 @@ // run-rustfix // aux-build:proc_macro_derive.rs -#![feature(custom_inner_attributes)] #![warn(clippy::use_self)] #![allow(dead_code, unreachable_code)] #![allow( @@ -619,9 +618,8 @@ mod issue6902 { } } +#[clippy::msrv = "1.36"] fn msrv_1_36() { - #![clippy::msrv = "1.36"] - enum E { A, } @@ -635,9 +633,8 @@ fn msrv_1_36() { } } +#[clippy::msrv = "1.37"] fn msrv_1_37() { - #![clippy::msrv = "1.37"] - enum E { A, } diff --git a/src/tools/clippy/tests/ui/use_self.stderr b/src/tools/clippy/tests/ui/use_self.stderr index 16fb0609242..48364c40c3b 100644 --- a/src/tools/clippy/tests/ui/use_self.stderr +++ b/src/tools/clippy/tests/ui/use_self.stderr @@ -1,5 +1,5 @@ error: unnecessary structure name repetition - --> $DIR/use_self.rs:23:21 + --> $DIR/use_self.rs:22:21 | LL | fn new() -> Foo { | ^^^ help: use the applicable keyword: `Self` @@ -7,247 +7,247 @@ LL | fn new() -> Foo { = note: `-D clippy::use-self` implied by `-D warnings` error: unnecessary structure name repetition - --> $DIR/use_self.rs:24:13 + --> $DIR/use_self.rs:23:13 | LL | Foo {} | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:26:22 + --> $DIR/use_self.rs:25:22 | LL | fn test() -> Foo { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:27:13 + --> $DIR/use_self.rs:26:13 | LL | Foo::new() | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:32:25 + --> $DIR/use_self.rs:31:25 | LL | fn default() -> Foo { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:33:13 + --> $DIR/use_self.rs:32:13 | LL | Foo::new() | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:98:24 + --> $DIR/use_self.rs:97:24 | LL | fn bad(foos: &[Foo]) -> impl Iterator<Item = &Foo> { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:98:55 + --> $DIR/use_self.rs:97:55 | LL | fn bad(foos: &[Foo]) -> impl Iterator<Item = &Foo> { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:113:13 + --> $DIR/use_self.rs:112:13 | LL | TS(0) | ^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:148:29 + --> $DIR/use_self.rs:147:29 | LL | fn bar() -> Bar { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:149:21 + --> $DIR/use_self.rs:148:21 | LL | Bar { foo: Foo {} } | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:160:21 + --> $DIR/use_self.rs:159:21 | LL | fn baz() -> Foo { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:161:13 + --> $DIR/use_self.rs:160:13 | LL | Foo {} | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:178:21 + --> $DIR/use_self.rs:177:21 | LL | let _ = Enum::B(42); | ^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:179:21 + --> $DIR/use_self.rs:178:21 | LL | let _ = Enum::C { field: true }; | ^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:180:21 + --> $DIR/use_self.rs:179:21 | LL | let _ = Enum::A; | ^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:222:13 + --> $DIR/use_self.rs:221:13 | LL | nested::A::fun_1(); | ^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:223:13 + --> $DIR/use_self.rs:222:13 | LL | nested::A::A; | ^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:225:13 + --> $DIR/use_self.rs:224:13 | LL | nested::A {}; | ^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:244:13 + --> $DIR/use_self.rs:243:13 | LL | TestStruct::from_something() | ^^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:258:25 + --> $DIR/use_self.rs:257:25 | LL | async fn g() -> S { | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:259:13 + --> $DIR/use_self.rs:258:13 | LL | S {} | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:263:16 + --> $DIR/use_self.rs:262:16 | LL | &p[S::A..S::B] | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:263:22 + --> $DIR/use_self.rs:262:22 | LL | &p[S::A..S::B] | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:286:29 + --> $DIR/use_self.rs:285:29 | LL | fn foo(value: T) -> Foo<T> { | ^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:287:13 + --> $DIR/use_self.rs:286:13 | LL | Foo::<T> { value } | ^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:459:13 + --> $DIR/use_self.rs:458:13 | LL | A::new::<submod::B>(submod::B {}) | ^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:496:13 + --> $DIR/use_self.rs:495:13 | LL | S2::new() | ^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:533:17 + --> $DIR/use_self.rs:532:17 | LL | Foo::Bar => unimplemented!(), | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:534:17 + --> $DIR/use_self.rs:533:17 | LL | Foo::Baz => unimplemented!(), | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:540:20 + --> $DIR/use_self.rs:539:20 | LL | if let Foo::Bar = self { | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:564:17 + --> $DIR/use_self.rs:563:17 | LL | Something::Num(n) => *n, | ^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:565:17 + --> $DIR/use_self.rs:564:17 | LL | Something::TupleNums(n, _m) => *n, | ^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:566:17 + --> $DIR/use_self.rs:565:17 | LL | Something::StructNums { one, two: _ } => *one, | ^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:572:17 + --> $DIR/use_self.rs:571:17 | LL | crate::issue8845::Something::Num(n) => *n, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:573:17 + --> $DIR/use_self.rs:572:17 | LL | crate::issue8845::Something::TupleNums(n, _m) => *n, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:574:17 + --> $DIR/use_self.rs:573:17 | LL | crate::issue8845::Something::StructNums { one, two: _ } => *one, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:590:17 + --> $DIR/use_self.rs:589:17 | LL | let Foo(x) = self; | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:595:17 + --> $DIR/use_self.rs:594:17 | LL | let crate::issue8845::Foo(x) = self; | ^^^^^^^^^^^^^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:602:17 + --> $DIR/use_self.rs:601:17 | LL | let Bar { x, .. } = self; | ^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:607:17 + --> $DIR/use_self.rs:606:17 | LL | let crate::issue8845::Bar { x, .. } = self; | ^^^^^^^^^^^^^^^^^^^^^ help: use the applicable keyword: `Self` error: unnecessary structure name repetition - --> $DIR/use_self.rs:648:17 + --> $DIR/use_self.rs:645:17 | LL | E::A => {}, | ^ help: use the applicable keyword: `Self` diff --git a/src/tools/clippy/triagebot.toml b/src/tools/clippy/triagebot.toml index 80c30393832..acb476ee696 100644 --- a/src/tools/clippy/triagebot.toml +++ b/src/tools/clippy/triagebot.toml @@ -4,9 +4,26 @@ allow-unauthenticated = [ "good-first-issue" ] -[assign] - # Allows shortcuts like `@rustbot ready` # # See https://github.com/rust-lang/triagebot/wiki/Shortcuts [shortcut] + +[autolabel."S-waiting-on-review"] +new_pr = true + +[assign] +contributing_url = "https://github.com/rust-lang/rust-clippy/blob/master/CONTRIBUTING.md" + +[assign.owners] +"/.github" = ["@flip1995"] +"*" = [ + "@flip1995", + "@Manishearth", + "@llogiq", + "@giraffate", + "@xFrednet", + "@Alexendoo", + "@dswij", + "@Jarcho", +] diff --git a/src/tools/compiletest/src/main.rs b/src/tools/compiletest/src/main.rs index 519da685f94..91c701a5ddd 100644 --- a/src/tools/compiletest/src/main.rs +++ b/src/tools/compiletest/src/main.rs @@ -514,6 +514,7 @@ pub fn test_opts(config: &Config) -> test::TestOpts { options: test::Options::new(), time_options: None, force_run_in_process: false, + fail_fast: std::env::var_os("RUSTC_TEST_FAIL_FAST").is_some(), } } diff --git a/src/tools/jsondoclint/src/validator.rs b/src/tools/jsondoclint/src/validator.rs index 5046ab9c7cb..e15f5fe3ccc 100644 --- a/src/tools/jsondoclint/src/validator.rs +++ b/src/tools/jsondoclint/src/validator.rs @@ -60,6 +60,8 @@ impl<'a> Validator<'a> { fn check_item(&mut self, id: &'a Id) { if let Some(item) = &self.krate.index.get(id) { + item.links.values().for_each(|id| self.add_any_id(id)); + match &item.inner { ItemEnum::Import(x) => self.check_import(x), ItemEnum::Union(x) => self.check_union(x), @@ -376,6 +378,10 @@ impl<'a> Validator<'a> { } } + fn add_any_id(&mut self, id: &'a Id) { + self.add_id_checked(id, |_| true, "any kind of item"); + } + fn add_field_id(&mut self, id: &'a Id) { self.add_id_checked(id, Kind::is_struct_field, "StructField"); } @@ -446,3 +452,6 @@ fn set_remove<T: Hash + Eq + Clone>(set: &mut HashSet<T>) -> Option<T> { None } } + +#[cfg(test)] +mod tests; diff --git a/src/tools/jsondoclint/src/validator/tests.rs b/src/tools/jsondoclint/src/validator/tests.rs new file mode 100644 index 00000000000..c4aeee9c53b --- /dev/null +++ b/src/tools/jsondoclint/src/validator/tests.rs @@ -0,0 +1,50 @@ +use std::collections::HashMap; + +use rustdoc_json_types::{Crate, Item, Visibility}; + +use super::*; + +#[track_caller] +fn check(krate: &Crate, errs: &[Error]) { + let mut validator = Validator::new(krate); + validator.check_crate(); + + assert_eq!(errs, &validator.errs[..]); +} + +fn id(s: &str) -> Id { + Id(s.to_owned()) +} + +#[test] +fn errors_on_missing_links() { + let k = Crate { + root: id("0"), + crate_version: None, + includes_private: false, + index: HashMap::from_iter([( + id("0"), + Item { + name: Some("root".to_owned()), + id: id(""), + crate_id: 0, + span: None, + visibility: Visibility::Public, + docs: None, + links: HashMap::from_iter([("Not Found".to_owned(), id("1"))]), + attrs: vec![], + deprecation: None, + inner: ItemEnum::Module(Module { + is_crate: true, + items: vec![], + is_stripped: false, + }), + }, + )]), + paths: HashMap::new(), + external_crates: HashMap::new(), + format_version: rustdoc_json_types::FORMAT_VERSION, + }; + + check(&k, &[Error { kind: ErrorKind::NotFound, id: id("1") }]); +} diff --git a/src/tools/miri/CONTRIBUTING.md b/src/tools/miri/CONTRIBUTING.md index c63f356607d..9d61cc4e2d5 100644 --- a/src/tools/miri/CONTRIBUTING.md +++ b/src/tools/miri/CONTRIBUTING.md @@ -203,65 +203,32 @@ for more information about configuring VS Code and `rust-analyzer`. [rdg-r-a]: https://rustc-dev-guide.rust-lang.org/building/suggested.html#configuring-rust-analyzer-for-rustc -## Advanced topic: other build environments +## Advanced topic: Working on Miri in the rustc tree We described above the simplest way to get a working build environment for Miri, which is to use the version of rustc indicated by `rustc-version`. But sometimes, that is not enough. -### Building Miri with a locally built rustc +A big part of the Miri driver is shared with rustc, so working on Miri will +sometimes require also working on rustc itself. In this case, you should *not* +work in a clone of the Miri repository, but in a clone of the +[main Rust repository](https://github.com/rust-lang/rust/). There is a copy of +Miri located at `src/tools/miri` that you can work on directly. A maintainer +will eventually sync those changes back into this repository. -[building Miri with a locally built rustc]: #building-miri-with-a-locally-built-rustc +When working on Miri in the rustc tree, here's how you can run tests: -A big part of the Miri driver lives in rustc, so working on Miri will sometimes -require using a locally built rustc. The bug you want to fix may actually be on -the rustc side, or you just need to get more detailed trace of the execution -than what is possible with release builds -- in both cases, you should develop -Miri against a rustc you compiled yourself, with debug assertions (and hence -tracing) enabled. - -The setup for a local rustc works as follows: -```sh -# Clone the rust-lang/rust repo. -git clone https://github.com/rust-lang/rust rustc -cd rustc -# Create a config.toml with defaults for working on Miri. -./x.py setup compiler - # Now edit `config.toml` and under `[rust]` set `debug-assertions = true`. - -# Build a stage 2 rustc, and build the rustc libraries with that rustc. -# This step can take 30 minutes or more. -./x.py build --stage 2 compiler/rustc -# If you change something, you can get a faster rebuild by doing -./x.py build --keep-stage 0 --stage 2 compiler/rustc -# You may have to change the architecture in the next command -rustup toolchain link stage2 build/x86_64-unknown-linux-gnu/stage2 -# Now cd to your Miri directory, then configure rustup -rustup override set stage2 ``` - -Note: When you are working with a locally built rustc or any other toolchain that -is not the same as the one in `rust-version`, you should not have `.auto-everything` or -`.auto-toolchain` as that will keep resetting your toolchain. - -```sh -rm -f .auto-everything .auto-toolchain +./x.py test miri --stage 0 ``` -Important: You need to delete the Miri cache when you change the stdlib; otherwise the -old, chached version will be used. On Linux, the cache is located at `~/.cache/miri`, -and on Windows, it is located at `%LOCALAPPDATA%\rust-lang\miri\cache`; the exact -location is printed after the library build: "A libstd for Miri is now available in ...". - -Note: `./x.py --stage 2 compiler/rustc` currently errors with `thread 'main' -panicked at 'fs::read(stamp) failed with No such file or directory (os error 2)`, -you can simply ignore that error; Miri will build anyway. +`--bless` will work, too. -For more information about building and configuring a local compiler, -see <https://rustc-dev-guide.rust-lang.org/building/how-to-build-and-run.html>. +You can also directly run Miri on a Rust source file: -With this, you should now have a working development setup! See -[above](#building-and-testing-miri) for how to proceed working on Miri. +``` +./x.py run miri --stage 0 --args src/tools/miri/tests/pass/hello.rs +``` ## Advanced topic: Syncing with the rustc repo diff --git a/src/tools/miri/Cargo.lock b/src/tools/miri/Cargo.lock index 15fc89b8681..876d49257ca 100644 --- a/src/tools/miri/Cargo.lock +++ b/src/tools/miri/Cargo.lock @@ -724,9 +724,9 @@ dependencies = [ [[package]] name = "ui_test" -version = "0.4.0" +version = "0.5.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "bf4559da3fe6b481f8674a29379677cb9606cd6f75fc254a2c9834c55638503d" +checksum = "54ddb6f31025943e2f9d59237f433711c461a43d9415974c3eb3a4902edc1c1f" dependencies = [ "bstr", "cargo_metadata", diff --git a/src/tools/miri/Cargo.toml b/src/tools/miri/Cargo.toml index 0f69a0baef4..717020f43c4 100644 --- a/src/tools/miri/Cargo.toml +++ b/src/tools/miri/Cargo.toml @@ -39,7 +39,7 @@ libloading = "0.7" [dev-dependencies] colored = "2" -ui_test = "0.4" +ui_test = "0.5" rustc_version = "0.4" # Features chosen to match those required by env_logger, to avoid rebuilds regex = { version = "1.5.5", default-features = false, features = ["perf", "std"] } diff --git a/src/tools/miri/cargo-miri/src/phases.rs b/src/tools/miri/cargo-miri/src/phases.rs index 64b3187305e..2bffff47722 100644 --- a/src/tools/miri/cargo-miri/src/phases.rs +++ b/src/tools/miri/cargo-miri/src/phases.rs @@ -94,7 +94,7 @@ pub fn phase_cargo_miri(mut args: impl Iterator<Item = String>) { let target = target.as_ref().unwrap_or(host); // We always setup. - setup(&subcommand, target, &rustc_version); + setup(&subcommand, target, &rustc_version, verbose); // Invoke actual cargo for the job, but with different flags. // We re-use `cargo test` and `cargo run`, which makes target and binary handling very easy but @@ -486,8 +486,7 @@ pub fn phase_runner(mut binary_args: impl Iterator<Item = String>, phase: Runner continue; } else if verbose > 0 { eprintln!( - "[cargo-miri runner] Overwriting run-time env var {:?}={:?} with build-time value {:?}", - name, old_val, val + "[cargo-miri runner] Overwriting run-time env var {name:?}={old_val:?} with build-time value {val:?}" ); } } diff --git a/src/tools/miri/cargo-miri/src/setup.rs b/src/tools/miri/cargo-miri/src/setup.rs index 9c179e82ba1..a696546954f 100644 --- a/src/tools/miri/cargo-miri/src/setup.rs +++ b/src/tools/miri/cargo-miri/src/setup.rs @@ -13,7 +13,7 @@ use crate::util::*; /// Performs the setup required to make `cargo miri` work: Getting a custom-built libstd. Then sets /// `MIRI_SYSROOT`. Skipped if `MIRI_SYSROOT` is already set, in which case we expect the user has /// done all this already. -pub fn setup(subcommand: &MiriCommand, target: &str, rustc_version: &VersionMeta) { +pub fn setup(subcommand: &MiriCommand, target: &str, rustc_version: &VersionMeta, verbose: usize) { let only_setup = matches!(subcommand, MiriCommand::Setup); let ask_user = !only_setup; let print_sysroot = only_setup && has_arg_flag("--print-sysroot"); // whether we just print the sysroot path @@ -99,12 +99,13 @@ pub fn setup(subcommand: &MiriCommand, target: &str, rustc_version: &VersionMeta // `config.toml`. command.env("RUSTC_WRAPPER", ""); - if only_setup { - if print_sysroot { - // Be extra sure there is no noise on stdout. - command.stdout(process::Stdio::null()); + if only_setup && !print_sysroot { + // Forward output. Even make it verbose, if requested. + for _ in 0..verbose { + command.arg("-v"); } } else { + // Supress output. command.stdout(process::Stdio::null()); command.stderr(process::Stdio::null()); } @@ -120,7 +121,9 @@ pub fn setup(subcommand: &MiriCommand, target: &str, rustc_version: &VersionMeta std::env::set_var("MIRI_SYSROOT", &sysroot_dir); // Do the build. - if only_setup { + if print_sysroot { + // Be silent. + } else if only_setup { // We want to be explicit. eprintln!("Preparing a sysroot for Miri (target: {target})..."); } else { @@ -143,7 +146,9 @@ pub fn setup(subcommand: &MiriCommand, target: &str, rustc_version: &VersionMeta ) } }); - if only_setup { + if print_sysroot { + // Be silent. + } else if only_setup { eprintln!("A sysroot for Miri is now available in `{}`.", sysroot_dir.display()); } else { eprintln!("done"); diff --git a/src/tools/miri/ci.sh b/src/tools/miri/ci.sh index dd2d2abe35b..e455b482338 100755 --- a/src/tools/miri/ci.sh +++ b/src/tools/miri/ci.sh @@ -40,10 +40,15 @@ function run_tests { ./miri test if [ -z "${MIRI_TEST_TARGET+exists}" ]; then # Only for host architecture: tests with optimizations (`-O` is what cargo passes, but crank MIR - # optimizations up all the way). - # Optimizations change diagnostics (mostly backtraces), so we don't check them - #FIXME(#2155): we want to only run the pass and panic tests here, not the fail tests. + # optimizations up all the way, too). + # Optimizations change diagnostics (mostly backtraces), so we don't check + # them. Also error locations change so we don't run the failing tests. MIRIFLAGS="${MIRIFLAGS:-} -O -Zmir-opt-level=4" MIRI_SKIP_UI_CHECKS=1 ./miri test -- tests/{pass,panic} + + # Also run some many-seeds tests. 64 seeds means this takes around a minute per test. + for FILE in tests/many-seeds/*.rs; do + MIRI_SEEDS=64 CARGO_EXTRA_FLAGS="$CARGO_EXTRA_FLAGS -q" ./miri many-seeds ./miri run "$FILE" + done fi ## test-cargo-miri diff --git a/src/tools/miri/miri b/src/tools/miri/miri index 38d36898768..a259576ed42 100755 --- a/src/tools/miri/miri +++ b/src/tools/miri/miri @@ -36,7 +36,8 @@ Mainly meant to be invoked by rust-analyzer. ./miri many-seeds <command>: Runs <command> over and over again with different seeds for Miri. The MIRIFLAGS variable is set to its original value appended with ` -Zmiri-seed=$SEED` for -many different seeds. +many different seeds. The MIRI_SEEDS variable controls how many seeds are being +tried; MIRI_SEED_START controls the first seed to try. ./miri bench <benches>: Runs the benchmarks from bench-cargo-miri in hyperfine. hyperfine needs to be installed. @@ -174,7 +175,9 @@ rustc-push) fi ;; many-seeds) - for SEED in $(seq 0 255); do + MIRI_SEED_START=${MIRI_SEED_START:-0} # default to 0 + MIRI_SEEDS=${MIRI_SEEDS:-256} # default to 256 + for SEED in $(seq $MIRI_SEED_START $(( $MIRI_SEED_START + $MIRI_SEEDS - 1 )) ); do echo "Trying seed: $SEED" MIRIFLAGS="$MIRIFLAGS -Zlayout-seed=$SEED -Zmiri-seed=$SEED" $@ || { echo "Failing seed: $SEED"; break; } done @@ -249,6 +252,8 @@ export RUSTFLAGS="-C link-args=-Wl,-rpath,$LIBDIR $RUSTFLAGS" # Build a sysroot and set MIRI_SYSROOT to use it. Arguments are passed to `cargo miri setup`. build_sysroot() { if ! MIRI_SYSROOT="$($CARGO run $CARGO_EXTRA_FLAGS --manifest-path "$MIRIDIR"/cargo-miri/Cargo.toml -- miri setup --print-sysroot "$@")"; then + # Run it again so the user can see the error. + $CARGO run $CARGO_EXTRA_FLAGS --manifest-path "$MIRIDIR"/cargo-miri/Cargo.toml -- miri setup "$@" echo "'cargo miri setup' failed" exit 1 fi diff --git a/src/tools/miri/rust-version b/src/tools/miri/rust-version index 851ef392740..8dd18ae98e6 100644 --- a/src/tools/miri/rust-version +++ b/src/tools/miri/rust-version @@ -1 +1 @@ -454784afba5bf35b5ff14ada0e31265ad1d75e73 +203c8765ea33c65d888febe0e8219c4bb11b0d89 diff --git a/src/tools/miri/src/bin/miri.rs b/src/tools/miri/src/bin/miri.rs index ffe89921d98..fce95b987f7 100644 --- a/src/tools/miri/src/bin/miri.rs +++ b/src/tools/miri/src/bin/miri.rs @@ -192,10 +192,7 @@ fn init_late_loggers(tcx: TyCtxt<'_>) { if log::Level::from_str(&var).is_ok() { env::set_var( "RUSTC_LOG", - format!( - "rustc_middle::mir::interpret={0},rustc_const_eval::interpret={0}", - var - ), + format!("rustc_middle::mir::interpret={var},rustc_const_eval::interpret={var}"), ); } else { env::set_var("RUSTC_LOG", &var); @@ -317,7 +314,7 @@ fn main() { } else if arg == "-Zmiri-disable-validation" { miri_config.validate = false; } else if arg == "-Zmiri-disable-stacked-borrows" { - miri_config.stacked_borrows = false; + miri_config.borrow_tracker = None; } else if arg == "-Zmiri-disable-data-race-detector" { miri_config.data_race_detector = false; miri_config.weak_memory_emulation = false; @@ -413,7 +410,7 @@ fn main() { err ), }; - for id in ids.into_iter().map(miri::SbTag::new) { + for id in ids.into_iter().map(miri::BorTag::new) { if let Some(id) = id { miri_config.tracked_pointer_tags.insert(id); } else { diff --git a/src/tools/miri/src/borrow_tracker/mod.rs b/src/tools/miri/src/borrow_tracker/mod.rs new file mode 100644 index 00000000000..10e6e252e94 --- /dev/null +++ b/src/tools/miri/src/borrow_tracker/mod.rs @@ -0,0 +1,371 @@ +use std::cell::RefCell; +use std::fmt; +use std::num::NonZeroU64; + +use log::trace; +use smallvec::SmallVec; + +use rustc_data_structures::fx::{FxHashMap, FxHashSet}; +use rustc_middle::mir::RetagKind; +use rustc_target::abi::Size; + +use crate::*; +pub mod stacked_borrows; +use stacked_borrows::diagnostics::RetagCause; + +pub type CallId = NonZeroU64; + +/// Tracking pointer provenance +#[derive(Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)] +pub struct BorTag(NonZeroU64); + +impl BorTag { + pub fn new(i: u64) -> Option<Self> { + NonZeroU64::new(i).map(BorTag) + } + + pub fn get(&self) -> u64 { + self.0.get() + } + + pub fn inner(&self) -> NonZeroU64 { + self.0 + } + + pub fn succ(self) -> Option<Self> { + self.0.checked_add(1).map(Self) + } + + /// The minimum representable tag + pub fn one() -> Self { + Self::new(1).unwrap() + } +} + +impl std::default::Default for BorTag { + /// The default to be used when borrow tracking is disabled + fn default() -> Self { + Self::one() + } +} + +impl fmt::Debug for BorTag { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + write!(f, "<{}>", self.0) + } +} + +/// Per-call-stack-frame data for borrow tracking +#[derive(Debug)] +pub struct FrameState { + /// The ID of the call this frame corresponds to. + pub call_id: CallId, + + /// If this frame is protecting any tags, they are listed here. We use this list to do + /// incremental updates of the global list of protected tags stored in the + /// `stacked_borrows::GlobalState` upon function return, and if we attempt to pop a protected + /// tag, to identify which call is responsible for protecting the tag. + /// See `Stack::item_popped` for more explanation. + /// + /// This will contain one tag per reference passed to the function, so + /// a size of 2 is enough for the vast majority of functions. + pub protected_tags: SmallVec<[BorTag; 2]>, +} + +impl VisitTags for FrameState { + fn visit_tags(&self, _visit: &mut dyn FnMut(BorTag)) { + // `protected_tags` are fine to GC. + } +} + +/// Extra global state, available to the memory access hooks. +#[derive(Debug)] +pub struct GlobalStateInner { + /// Borrow tracker method currently in use. + pub borrow_tracker_method: BorrowTrackerMethod, + /// Next unused pointer ID (tag). + pub next_ptr_tag: BorTag, + /// Table storing the "base" tag for each allocation. + /// The base tag is the one used for the initial pointer. + /// We need this in a separate table to handle cyclic statics. + pub base_ptr_tags: FxHashMap<AllocId, BorTag>, + /// Next unused call ID (for protectors). + pub next_call_id: CallId, + /// All currently protected tags. + /// An item is protected if its tag is in this set, *and* it has the "protected" bit set. + /// We add tags to this when they are created with a protector in `reborrow`, and + /// we remove tags from this when the call which is protecting them returns, in + /// `GlobalStateInner::end_call`. See `Stack::item_popped` for more details. + pub protected_tags: FxHashMap<BorTag, ProtectorKind>, + /// The pointer ids to trace + pub tracked_pointer_tags: FxHashSet<BorTag>, + /// The call ids to trace + pub tracked_call_ids: FxHashSet<CallId>, + /// Whether to recurse into datatypes when searching for pointers to retag. + pub retag_fields: RetagFields, +} + +impl VisitTags for GlobalStateInner { + fn visit_tags(&self, _visit: &mut dyn FnMut(BorTag)) { + // The only candidate is base_ptr_tags, and that does not need visiting since we don't ever + // GC the bottommost tag. + } +} + +/// We need interior mutable access to the global state. +pub type GlobalState = RefCell<GlobalStateInner>; + +/// Indicates which kind of access is being performed. +#[derive(Copy, Clone, Hash, PartialEq, Eq, Debug)] +pub enum AccessKind { + Read, + Write, +} + +impl fmt::Display for AccessKind { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + match self { + AccessKind::Read => write!(f, "read access"), + AccessKind::Write => write!(f, "write access"), + } + } +} + +/// Policy on whether to recurse into fields to retag +#[derive(Copy, Clone, Debug)] +pub enum RetagFields { + /// Don't retag any fields. + No, + /// Retag all fields. + Yes, + /// Only retag fields of types with Scalar and ScalarPair layout, + /// to match the LLVM `noalias` we generate. + OnlyScalar, +} + +/// The flavor of the protector. +#[derive(Copy, Clone, Debug, PartialEq, Eq)] +pub enum ProtectorKind { + /// Protected against aliasing violations from other pointers. + /// + /// Items protected like this cause UB when they are invalidated, *but* the pointer itself may + /// still be used to issue a deallocation. + /// + /// This is required for LLVM IR pointers that are `noalias` but *not* `dereferenceable`. + WeakProtector, + + /// Protected against any kind of invalidation. + /// + /// Items protected like this cause UB when they are invalidated or the memory is deallocated. + /// This is strictly stronger protection than `WeakProtector`. + /// + /// This is required for LLVM IR pointers that are `dereferenceable` (and also allows `noalias`). + StrongProtector, +} + +/// Utilities for initialization and ID generation +impl GlobalStateInner { + pub fn new( + borrow_tracker_method: BorrowTrackerMethod, + tracked_pointer_tags: FxHashSet<BorTag>, + tracked_call_ids: FxHashSet<CallId>, + retag_fields: RetagFields, + ) -> Self { + GlobalStateInner { + borrow_tracker_method, + next_ptr_tag: BorTag::one(), + base_ptr_tags: FxHashMap::default(), + next_call_id: NonZeroU64::new(1).unwrap(), + protected_tags: FxHashMap::default(), + tracked_pointer_tags, + tracked_call_ids, + retag_fields, + } + } + + /// Generates a new pointer tag. Remember to also check track_pointer_tags and log its creation! + pub fn new_ptr(&mut self) -> BorTag { + let id = self.next_ptr_tag; + self.next_ptr_tag = id.succ().unwrap(); + id + } + + pub fn new_frame(&mut self, machine: &MiriMachine<'_, '_>) -> FrameState { + let call_id = self.next_call_id; + trace!("new_frame: Assigning call ID {}", call_id); + if self.tracked_call_ids.contains(&call_id) { + machine.emit_diagnostic(NonHaltingDiagnostic::CreatedCallId(call_id)); + } + self.next_call_id = NonZeroU64::new(call_id.get() + 1).unwrap(); + FrameState { call_id, protected_tags: SmallVec::new() } + } + + pub fn end_call(&mut self, frame: &machine::FrameExtra<'_>) { + for tag in &frame + .borrow_tracker + .as_ref() + .expect("we should have borrow tracking data") + .protected_tags + { + self.protected_tags.remove(tag); + } + } + + pub fn base_ptr_tag(&mut self, id: AllocId, machine: &MiriMachine<'_, '_>) -> BorTag { + self.base_ptr_tags.get(&id).copied().unwrap_or_else(|| { + let tag = self.new_ptr(); + if self.tracked_pointer_tags.contains(&tag) { + machine.emit_diagnostic(NonHaltingDiagnostic::CreatedPointerTag( + tag.inner(), + None, + None, + )); + } + trace!("New allocation {:?} has base tag {:?}", id, tag); + self.base_ptr_tags.try_insert(id, tag).unwrap(); + tag + }) + } +} + +/// Which borrow tracking method to use +#[derive(Debug, Copy, Clone, PartialEq, Eq)] +pub enum BorrowTrackerMethod { + /// Stacked Borrows, as implemented in borrow_tracker/stacked + StackedBorrows, +} + +impl BorrowTrackerMethod { + pub fn instanciate_global_state(self, config: &MiriConfig) -> GlobalState { + RefCell::new(GlobalStateInner::new( + self, + config.tracked_pointer_tags.clone(), + config.tracked_call_ids.clone(), + config.retag_fields, + )) + } +} + +impl GlobalStateInner { + pub fn new_allocation( + &mut self, + id: AllocId, + alloc_size: Size, + kind: MemoryKind<machine::MiriMemoryKind>, + machine: &MiriMachine<'_, '_>, + ) -> AllocState { + match self.borrow_tracker_method { + BorrowTrackerMethod::StackedBorrows => + AllocState::StackedBorrows(Box::new(RefCell::new(Stacks::new_allocation( + id, alloc_size, self, kind, machine, + )))), + } + } +} + +impl<'mir, 'tcx: 'mir> EvalContextExt<'mir, 'tcx> for crate::MiriInterpCx<'mir, 'tcx> {} +pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { + fn retag(&mut self, kind: RetagKind, place: &PlaceTy<'tcx, Provenance>) -> InterpResult<'tcx> { + let this = self.eval_context_mut(); + let method = this.machine.borrow_tracker.as_ref().unwrap().borrow().borrow_tracker_method; + match method { + BorrowTrackerMethod::StackedBorrows => this.sb_retag(kind, place), + } + } + + fn retag_return_place(&mut self) -> InterpResult<'tcx> { + let this = self.eval_context_mut(); + let method = this.machine.borrow_tracker.as_ref().unwrap().borrow().borrow_tracker_method; + match method { + BorrowTrackerMethod::StackedBorrows => this.sb_retag_return_place(), + } + } + + fn expose_tag(&mut self, alloc_id: AllocId, tag: BorTag) -> InterpResult<'tcx> { + let this = self.eval_context_mut(); + let method = this.machine.borrow_tracker.as_ref().unwrap().borrow().borrow_tracker_method; + match method { + BorrowTrackerMethod::StackedBorrows => this.sb_expose_tag(alloc_id, tag), + } + } +} + +/// Extra per-allocation data for borrow tracking +#[derive(Debug, Clone)] +pub enum AllocState { + /// Data corresponding to Stacked Borrows + StackedBorrows(Box<RefCell<stacked_borrows::AllocState>>), +} + +impl machine::AllocExtra { + #[track_caller] + pub fn borrow_tracker_sb(&self) -> &RefCell<stacked_borrows::AllocState> { + match self.borrow_tracker { + Some(AllocState::StackedBorrows(ref sb)) => sb, + _ => panic!("expected Stacked Borrows borrow tracking, got something else"), + } + } + + #[track_caller] + pub fn borrow_tracker_sb_mut(&mut self) -> &mut RefCell<stacked_borrows::AllocState> { + match self.borrow_tracker { + Some(AllocState::StackedBorrows(ref mut sb)) => sb, + _ => panic!("expected Stacked Borrows borrow tracking, got something else"), + } + } +} + +impl AllocState { + pub fn before_memory_read<'tcx>( + &self, + alloc_id: AllocId, + prov_extra: ProvenanceExtra, + range: AllocRange, + machine: &MiriMachine<'_, 'tcx>, + ) -> InterpResult<'tcx> { + match self { + AllocState::StackedBorrows(sb) => + sb.borrow_mut().before_memory_read(alloc_id, prov_extra, range, machine), + } + } + + pub fn before_memory_write<'tcx>( + &mut self, + alloc_id: AllocId, + prov_extra: ProvenanceExtra, + range: AllocRange, + machine: &mut MiriMachine<'_, 'tcx>, + ) -> InterpResult<'tcx> { + match self { + AllocState::StackedBorrows(sb) => + sb.get_mut().before_memory_write(alloc_id, prov_extra, range, machine), + } + } + + pub fn before_memory_deallocation<'tcx>( + &mut self, + alloc_id: AllocId, + prov_extra: ProvenanceExtra, + range: AllocRange, + machine: &mut MiriMachine<'_, 'tcx>, + ) -> InterpResult<'tcx> { + match self { + AllocState::StackedBorrows(sb) => + sb.get_mut().before_memory_deallocation(alloc_id, prov_extra, range, machine), + } + } + + pub fn remove_unreachable_tags(&self, tags: &FxHashSet<BorTag>) { + match self { + AllocState::StackedBorrows(sb) => sb.borrow_mut().remove_unreachable_tags(tags), + } + } +} + +impl VisitTags for AllocState { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { + match self { + AllocState::StackedBorrows(sb) => sb.visit_tags(visit), + } + } +} diff --git a/src/tools/miri/src/stacked_borrows/diagnostics.rs b/src/tools/miri/src/borrow_tracker/stacked_borrows/diagnostics.rs index 9970b79f8c7..9a7b38b13a3 100644 --- a/src/tools/miri/src/stacked_borrows/diagnostics.rs +++ b/src/tools/miri/src/borrow_tracker/stacked_borrows/diagnostics.rs @@ -1,15 +1,16 @@ use smallvec::SmallVec; use std::fmt; -use rustc_middle::mir::interpret::{alloc_range, AllocId, AllocRange}; +use rustc_middle::mir::interpret::{alloc_range, AllocId, AllocRange, InterpError}; use rustc_span::{Span, SpanData}; use rustc_target::abi::Size; -use crate::stacked_borrows::{err_sb_ub, AccessKind, GlobalStateInner, Permission, ProtectorKind}; +use crate::borrow_tracker::{ + stacked_borrows::{err_sb_ub, Permission}, + AccessKind, GlobalStateInner, ProtectorKind, +}; use crate::*; -use rustc_middle::mir::interpret::InterpError; - #[derive(Clone, Debug)] pub struct AllocHistory { id: AllocId, @@ -51,7 +52,7 @@ impl Creation { #[derive(Clone, Debug)] struct Invalidation { - tag: SbTag, + tag: BorTag, range: AllocRange, span: Span, cause: InvalidationCause, @@ -98,7 +99,7 @@ impl fmt::Display for InvalidationCause { #[derive(Clone, Debug)] struct Protection { - tag: SbTag, + tag: BorTag, span: Span, } @@ -133,7 +134,7 @@ impl<'ecx, 'mir, 'tcx> DiagnosticCxBuilder<'ecx, 'mir, 'tcx> { pub fn retag( machine: &'ecx MiriMachine<'mir, 'tcx>, cause: RetagCause, - new_tag: SbTag, + new_tag: BorTag, orig_tag: ProvenanceExtra, range: AllocRange, ) -> Self { @@ -183,7 +184,7 @@ enum Operation { #[derive(Debug, Clone)] struct RetagOp { cause: RetagCause, - new_tag: SbTag, + new_tag: BorTag, orig_tag: ProvenanceExtra, range: AllocRange, permission: Option<Permission>, @@ -255,7 +256,7 @@ impl<'history, 'ecx, 'mir, 'tcx> DiagnosticCx<'history, 'ecx, 'mir, 'tcx> { .push(Creation { retag: op.clone(), span: self.machine.current_span() }); } - pub fn log_invalidation(&mut self, tag: SbTag) { + pub fn log_invalidation(&mut self, tag: BorTag) { let mut span = self.machine.current_span(); let (range, cause) = match &self.operation { Operation::Retag(RetagOp { cause, range, permission, .. }) => { @@ -286,8 +287,8 @@ impl<'history, 'ecx, 'mir, 'tcx> DiagnosticCx<'history, 'ecx, 'mir, 'tcx> { pub fn get_logs_relevant_to( &self, - tag: SbTag, - protector_tag: Option<SbTag>, + tag: BorTag, + protector_tag: Option<BorTag>, ) -> Option<TagHistory> { let Some(created) = self.history .creations @@ -408,7 +409,7 @@ impl<'history, 'ecx, 'mir, 'tcx> DiagnosticCx<'history, 'ecx, 'mir, 'tcx> { .all_stacks() .flatten() .map(|frame| { - frame.extra.stacked_borrows.as_ref().expect("we should have Stacked Borrows data") + frame.extra.borrow_tracker.as_ref().expect("we should have borrow tracking data") }) .find(|frame| frame.protected_tags.contains(&item.tag())) .map(|frame| frame.call_id) @@ -454,23 +455,18 @@ impl<'history, 'ecx, 'mir, 'tcx> DiagnosticCx<'history, 'ecx, 'mir, 'tcx> { if !global.tracked_pointer_tags.contains(&item.tag()) { return; } - let summary = match self.operation { - Operation::Dealloc(_) => None, - Operation::Access(AccessOp { kind, tag, .. }) => Some((tag, kind)), + let cause = match self.operation { + Operation::Dealloc(_) => format!(" due to deallocation"), + Operation::Access(AccessOp { kind, tag, .. }) => + format!(" due to {kind:?} access for {tag:?}"), Operation::Retag(RetagOp { orig_tag, permission, .. }) => { - let kind = match permission - .expect("start_grant should set the current permission before popping a tag") - { - Permission::SharedReadOnly => AccessKind::Read, - Permission::Unique => AccessKind::Write, - Permission::SharedReadWrite | Permission::Disabled => { - panic!("Only SharedReadOnly and Unique retags can pop tags"); - } - }; - Some((orig_tag, kind)) + let permission = permission + .expect("start_grant should set the current permission before popping a tag"); + format!(" due to {permission:?} retag from {orig_tag:?}") } }; - self.machine.emit_diagnostic(NonHaltingDiagnostic::PoppedPointerTag(*item, summary)); + + self.machine.emit_diagnostic(NonHaltingDiagnostic::PoppedPointerTag(*item, cause)); } } diff --git a/src/tools/miri/src/stacked_borrows/item.rs b/src/tools/miri/src/borrow_tracker/stacked_borrows/item.rs index 709b27d191b..b9a52e4966c 100644 --- a/src/tools/miri/src/stacked_borrows/item.rs +++ b/src/tools/miri/src/borrow_tracker/stacked_borrows/item.rs @@ -1,13 +1,13 @@ -use crate::stacked_borrows::SbTag; use std::fmt; -use std::num::NonZeroU64; + +use crate::borrow_tracker::BorTag; /// An item in the per-location borrow stack. #[derive(Copy, Clone, Hash, PartialEq, Eq)] pub struct Item(u64); // An Item contains 3 bitfields: -// * Bits 0-61 store an SbTag +// * Bits 0-61 store a BorTag // * Bits 61-63 store a Permission // * Bit 64 stores a flag which indicates if we have a protector const TAG_MASK: u64 = u64::MAX >> 3; @@ -18,9 +18,9 @@ const PERM_SHIFT: u64 = 61; const PROTECTED_SHIFT: u64 = 63; impl Item { - pub fn new(tag: SbTag, perm: Permission, protected: bool) -> Self { - assert!(tag.0.get() <= TAG_MASK); - let packed_tag = tag.0.get(); + pub fn new(tag: BorTag, perm: Permission, protected: bool) -> Self { + assert!(tag.get() <= TAG_MASK); + let packed_tag = tag.get(); let packed_perm = perm.to_bits() << PERM_SHIFT; let packed_protected = u64::from(protected) << PROTECTED_SHIFT; @@ -34,8 +34,8 @@ impl Item { } /// The pointers the permission is granted to. - pub fn tag(self) -> SbTag { - SbTag(NonZeroU64::new(self.0 & TAG_MASK).unwrap()) + pub fn tag(self) -> BorTag { + BorTag::new(self.0 & TAG_MASK).unwrap() } /// The permission this item grants. diff --git a/src/tools/miri/src/stacked_borrows/mod.rs b/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs index 4e369f4291a..bcac873251f 100644 --- a/src/tools/miri/src/stacked_borrows/mod.rs +++ b/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs @@ -2,81 +2,30 @@ //! for further information. use log::trace; -use std::cell::RefCell; use std::cmp; -use std::fmt; -use std::fmt::Write; -use std::num::NonZeroU64; +use std::fmt::{self, Write}; -use rustc_data_structures::fx::{FxHashMap, FxHashSet}; -use rustc_hir::Mutability; -use rustc_middle::mir::RetagKind; +use rustc_data_structures::fx::FxHashSet; +use rustc_middle::mir::{Mutability, RetagKind}; use rustc_middle::ty::{ self, layout::{HasParamEnv, LayoutOf}, }; -use rustc_target::abi::Abi; -use rustc_target::abi::Size; -use smallvec::SmallVec; +use rustc_target::abi::{Abi, Size}; +use crate::borrow_tracker::{ + stacked_borrows::diagnostics::{AllocHistory, DiagnosticCx, DiagnosticCxBuilder, TagHistory}, + AccessKind, GlobalStateInner, ProtectorKind, RetagCause, RetagFields, +}; use crate::*; -pub mod diagnostics; -use diagnostics::{AllocHistory, DiagnosticCx, DiagnosticCxBuilder, RetagCause, TagHistory}; - mod item; pub use item::{Item, Permission}; mod stack; pub use stack::Stack; +pub mod diagnostics; -pub type CallId = NonZeroU64; - -// Even reading memory can have effects on the stack, so we need a `RefCell` here. -pub type AllocExtra = RefCell<Stacks>; - -/// Tracking pointer provenance -#[derive(Copy, Clone, Hash, PartialEq, Eq)] -pub struct SbTag(NonZeroU64); - -impl SbTag { - pub fn new(i: u64) -> Option<Self> { - NonZeroU64::new(i).map(SbTag) - } - - // The default to be used when SB is disabled - #[allow(clippy::should_implement_trait)] - pub fn default() -> Self { - Self::new(1).unwrap() - } -} - -impl fmt::Debug for SbTag { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - write!(f, "<{}>", self.0) - } -} - -#[derive(Debug)] -pub struct FrameExtra { - /// The ID of the call this frame corresponds to. - call_id: CallId, - - /// If this frame is protecting any tags, they are listed here. We use this list to do - /// incremental updates of the global list of protected tags stored in the - /// `stacked_borrows::GlobalState` upon function return, and if we attempt to pop a protected - /// tag, to identify which call is responsible for protecting the tag. - /// See `Stack::item_invalidated` for more explanation. - /// - /// This will contain one tag per reference passed to the function, so - /// a size of 2 is enough for the vast majority of functions. - protected_tags: SmallVec<[SbTag; 2]>, -} - -impl VisitTags for FrameExtra { - fn visit_tags(&self, _visit: &mut dyn FnMut(SbTag)) { - // `protected_tags` are fine to GC. - } -} +pub type AllocState = Stacks; /// Extra per-allocation state. #[derive(Clone, Debug)] @@ -86,99 +35,19 @@ pub struct Stacks { /// Stores past operations on this allocation history: AllocHistory, /// The set of tags that have been exposed inside this allocation. - exposed_tags: FxHashSet<SbTag>, + exposed_tags: FxHashSet<BorTag>, /// Whether this memory has been modified since the last time the tag GC ran modified_since_last_gc: bool, } -/// The flavor of the protector. -#[derive(Copy, Clone, Debug)] -enum ProtectorKind { - /// Protected against aliasing violations from other pointers. - /// - /// Items protected like this cause UB when they are invalidated, *but* the pointer itself may - /// still be used to issue a deallocation. - /// - /// This is required for LLVM IR pointers that are `noalias` but *not* `dereferenceable`. - WeakProtector, - - /// Protected against any kind of invalidation. - /// - /// Items protected like this cause UB when they are invalidated or the memory is deallocated. - /// This is strictly stronger protection than `WeakProtector`. - /// - /// This is required for LLVM IR pointers that are `dereferenceable` (and also allows `noalias`). - StrongProtector, -} - -/// Extra global state, available to the memory access hooks. -#[derive(Debug)] -pub struct GlobalStateInner { - /// Next unused pointer ID (tag). - next_ptr_tag: SbTag, - /// Table storing the "base" tag for each allocation. - /// The base tag is the one used for the initial pointer. - /// We need this in a separate table to handle cyclic statics. - base_ptr_tags: FxHashMap<AllocId, SbTag>, - /// Next unused call ID (for protectors). - next_call_id: CallId, - /// All currently protected tags, and the status of their protection. - /// An item is protected if its tag is in this set, *and* it has the "protected" bit set. - /// We add tags to this when they are created with a protector in `reborrow`, and - /// we remove tags from this when the call which is protecting them returns, in - /// `GlobalStateInner::end_call`. See `Stack::item_invalidated` for more details. - protected_tags: FxHashMap<SbTag, ProtectorKind>, - /// The pointer ids to trace - tracked_pointer_tags: FxHashSet<SbTag>, - /// The call ids to trace - tracked_call_ids: FxHashSet<CallId>, - /// Whether to recurse into datatypes when searching for pointers to retag. - retag_fields: RetagFields, -} - -#[derive(Copy, Clone, Debug)] -pub enum RetagFields { - /// Don't retag any fields. - No, - /// Retag all fields. - Yes, - /// Only retag fields of types with Scalar and ScalarPair layout, - /// to match the LLVM `noalias` we generate. - OnlyScalar, -} - -impl VisitTags for GlobalStateInner { - fn visit_tags(&self, _visit: &mut dyn FnMut(SbTag)) { - // The only candidate is base_ptr_tags, and that does not need visiting since we don't ever - // GC the bottommost tag. - } -} - -/// We need interior mutable access to the global state. -pub type GlobalState = RefCell<GlobalStateInner>; - -/// Indicates which kind of access is being performed. -#[derive(Copy, Clone, Hash, PartialEq, Eq, Debug)] -pub enum AccessKind { - Read, - Write, -} - -impl fmt::Display for AccessKind { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - match self { - AccessKind::Read => write!(f, "read access"), - AccessKind::Write => write!(f, "write access"), - } - } -} - /// Indicates which kind of reference is being created. /// Used by high-level `reborrow` to compute which permissions to grant to the /// new pointer. #[derive(Copy, Clone, Hash, PartialEq, Eq)] -pub enum RefKind { - /// `&mut` and `Box`. +enum RefKind { + /// `Box`. + Box, + /// `&mut`. Unique { two_phase: bool }, /// `&` with or without interior mutability. Shared, @@ -189,6 +58,7 @@ pub enum RefKind { impl fmt::Display for RefKind { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self { + RefKind::Box => write!(f, "Box"), RefKind::Unique { two_phase: false } => write!(f, "unique reference"), RefKind::Unique { two_phase: true } => write!(f, "unique reference (two-phase)"), RefKind::Shared => write!(f, "shared reference"), @@ -198,65 +68,6 @@ impl fmt::Display for RefKind { } } -/// Utilities for initialization and ID generation -impl GlobalStateInner { - pub fn new( - tracked_pointer_tags: FxHashSet<SbTag>, - tracked_call_ids: FxHashSet<CallId>, - retag_fields: RetagFields, - ) -> Self { - GlobalStateInner { - next_ptr_tag: SbTag(NonZeroU64::new(1).unwrap()), - base_ptr_tags: FxHashMap::default(), - next_call_id: NonZeroU64::new(1).unwrap(), - protected_tags: FxHashMap::default(), - tracked_pointer_tags, - tracked_call_ids, - retag_fields, - } - } - - /// Generates a new pointer tag. Remember to also check track_pointer_tags and log its creation! - fn new_ptr(&mut self) -> SbTag { - let id = self.next_ptr_tag; - self.next_ptr_tag = SbTag(NonZeroU64::new(id.0.get() + 1).unwrap()); - id - } - - pub fn new_frame(&mut self, machine: &MiriMachine<'_, '_>) -> FrameExtra { - let call_id = self.next_call_id; - trace!("new_frame: Assigning call ID {}", call_id); - if self.tracked_call_ids.contains(&call_id) { - machine.emit_diagnostic(NonHaltingDiagnostic::CreatedCallId(call_id)); - } - self.next_call_id = NonZeroU64::new(call_id.get() + 1).unwrap(); - FrameExtra { call_id, protected_tags: SmallVec::new() } - } - - pub fn end_call(&mut self, frame: &machine::FrameData<'_>) { - for tag in &frame - .stacked_borrows - .as_ref() - .expect("we should have Stacked Borrows data") - .protected_tags - { - self.protected_tags.remove(tag); - } - } - - pub fn base_ptr_tag(&mut self, id: AllocId, machine: &MiriMachine<'_, '_>) -> SbTag { - self.base_ptr_tags.get(&id).copied().unwrap_or_else(|| { - let tag = self.new_ptr(); - if self.tracked_pointer_tags.contains(&tag) { - machine.emit_diagnostic(NonHaltingDiagnostic::CreatedPointerTag(tag.0, None, None)); - } - trace!("New allocation {:?} has base tag {:?}", id, tag); - self.base_ptr_tags.try_insert(id, tag).unwrap(); - tag - }) - } -} - /// Error reporting pub fn err_sb_ub<'tcx>( msg: String, @@ -329,14 +140,7 @@ impl<'tcx> Stack { } } - /// Check if the given item is protected. - /// - /// The `provoking_access` argument is only used to produce diagnostics. - /// It is `Some` when we are granting the contained access for said tag, and it is - /// `None` during a deallocation. - /// Within `provoking_access, the `AllocRange` refers the entire operation, and - /// the `Size` refers to the specific location in the `AllocRange` that we are - /// currently checking. + /// The given item was invalidated -- check its protectors for whether that will cause UB. fn item_invalidated( item: &Item, global: &GlobalStateInner, @@ -386,7 +190,7 @@ impl<'tcx> Stack { tag: ProvenanceExtra, global: &GlobalStateInner, dcx: &mut DiagnosticCx<'_, '_, '_, 'tcx>, - exposed_tags: &FxHashSet<SbTag>, + exposed_tags: &FxHashSet<BorTag>, ) -> InterpResult<'tcx> { // Two main steps: Find granting item, remove incompatible items above. @@ -442,23 +246,24 @@ impl<'tcx> Stack { if granting_idx.is_none() || matches!(tag, ProvenanceExtra::Wildcard) { // Compute the upper bound of the items that remain. // (This is why we did all the work above: to reduce the items we have to consider here.) - let mut max = NonZeroU64::new(1).unwrap(); + let mut max = BorTag::one(); for i in 0..self.len() { let item = self.get(i).unwrap(); // Skip disabled items, they cannot be matched anyway. if !matches!(item.perm(), Permission::Disabled) { // We are looking for a strict upper bound, so add 1 to this tag. - max = cmp::max(item.tag().0.checked_add(1).unwrap(), max); + max = cmp::max(item.tag().succ().unwrap(), max); } } if let Some(unk) = self.unknown_bottom() { - max = cmp::max(unk.0, max); + max = cmp::max(unk, max); } // Use `max` as new strict upper bound for everything. trace!( - "access: forgetting stack to upper bound {max} due to wildcard or unknown access" + "access: forgetting stack to upper bound {max} due to wildcard or unknown access", + max = max.get(), ); - self.set_unknown_bottom(SbTag(max)); + self.set_unknown_bottom(max); } // Done. @@ -472,7 +277,7 @@ impl<'tcx> Stack { tag: ProvenanceExtra, global: &GlobalStateInner, dcx: &mut DiagnosticCx<'_, '_, '_, 'tcx>, - exposed_tags: &FxHashSet<SbTag>, + exposed_tags: &FxHashSet<BorTag>, ) -> InterpResult<'tcx> { // Step 1: Make a write access. // As part of this we do regular protector checking, i.e. even weakly protected items cause UB when popped. @@ -497,7 +302,7 @@ impl<'tcx> Stack { access: Option<AccessKind>, global: &GlobalStateInner, dcx: &mut DiagnosticCx<'_, '_, '_, 'tcx>, - exposed_tags: &FxHashSet<SbTag>, + exposed_tags: &FxHashSet<BorTag>, ) -> InterpResult<'tcx> { dcx.start_grant(new.perm()); @@ -550,9 +355,9 @@ impl<'tcx> Stack { } // # Stacked Borrows Core End -/// Integration with the SbTag garbage collector +/// Integration with the BorTag garbage collector impl Stacks { - pub fn remove_unreachable_tags(&mut self, live_tags: &FxHashSet<SbTag>) { + pub fn remove_unreachable_tags(&mut self, live_tags: &FxHashSet<BorTag>) { if self.modified_since_last_gc { for stack in self.stacks.iter_mut_all() { if stack.len() > 64 { @@ -565,7 +370,7 @@ impl Stacks { } impl VisitTags for Stacks { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { for tag in self.exposed_tags.iter().copied() { visit(tag); } @@ -579,7 +384,7 @@ impl<'tcx> Stacks { fn new( size: Size, perm: Permission, - tag: SbTag, + tag: BorTag, id: AllocId, machine: &MiriMachine<'_, '_>, ) -> Self { @@ -602,7 +407,7 @@ impl<'tcx> Stacks { mut f: impl FnMut( &mut Stack, &mut DiagnosticCx<'_, '_, '_, 'tcx>, - &mut FxHashSet<SbTag>, + &mut FxHashSet<BorTag>, ) -> InterpResult<'tcx>, ) -> InterpResult<'tcx> { self.modified_since_last_gc = true; @@ -620,20 +425,19 @@ impl Stacks { pub fn new_allocation( id: AllocId, size: Size, - state: &GlobalState, + state: &mut GlobalStateInner, kind: MemoryKind<MiriMemoryKind>, machine: &MiriMachine<'_, '_>, ) -> Self { - let mut extra = state.borrow_mut(); let (base_tag, perm) = match kind { // New unique borrow. This tag is not accessible by the program, // so it will only ever be used when using the local directly (i.e., // not through a pointer). That is, whenever we directly write to a local, this will pop // everything else off the stack, invalidating all previous pointers, // and in particular, *all* raw pointers. - MemoryKind::Stack => (extra.base_ptr_tag(id, machine), Permission::Unique), + MemoryKind::Stack => (state.base_ptr_tag(id, machine), Permission::Unique), // Everything else is shared by default. - _ => (extra.base_ptr_tag(id, machine), Permission::SharedReadWrite), + _ => (state.base_ptr_tag(id, machine), Permission::SharedReadWrite), }; Stacks::new(size, perm, base_tag, id, machine) } @@ -656,7 +460,7 @@ impl Stacks { range.size.bytes() ); let dcx = DiagnosticCxBuilder::read(machine, tag, range); - let state = machine.stacked_borrows.as_ref().unwrap().borrow(); + let state = machine.borrow_tracker.as_ref().unwrap().borrow(); self.for_each(range, dcx, |stack, dcx, exposed_tags| { stack.access(AccessKind::Read, tag, &state, dcx, exposed_tags) }) @@ -677,7 +481,7 @@ impl Stacks { range.size.bytes() ); let dcx = DiagnosticCxBuilder::write(machine, tag, range); - let state = machine.stacked_borrows.as_ref().unwrap().borrow(); + let state = machine.borrow_tracker.as_ref().unwrap().borrow(); self.for_each(range, dcx, |stack, dcx, exposed_tags| { stack.access(AccessKind::Write, tag, &state, dcx, exposed_tags) }) @@ -693,7 +497,7 @@ impl Stacks { ) -> InterpResult<'tcx> { trace!("deallocation with tag {:?}: {:?}, size {}", tag, alloc_id, range.size.bytes()); let dcx = DiagnosticCxBuilder::dealloc(machine, tag); - let state = machine.stacked_borrows.as_ref().unwrap().borrow(); + let state = machine.borrow_tracker.as_ref().unwrap().borrow(); self.for_each(range, dcx, |stack, dcx, exposed_tags| { stack.dealloc(tag, &state, dcx, exposed_tags) })?; @@ -710,13 +514,13 @@ impl<'mir: 'ecx, 'tcx: 'mir, 'ecx> EvalContextPrivExt<'mir, 'tcx, 'ecx> trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<'mir, 'tcx> { /// Returns the `AllocId` the reborrow was done in, if some actual borrow stack manipulation /// happened. - fn reborrow( + fn sb_reborrow( &mut self, place: &MPlaceTy<'tcx, Provenance>, size: Size, kind: RefKind, retag_cause: RetagCause, // What caused this retag, for diagnostics only - new_tag: SbTag, + new_tag: BorTag, protect: Option<ProtectorKind>, ) -> InterpResult<'tcx, Option<AllocId>> { let this = self.eval_context_mut(); @@ -725,7 +529,7 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' let log_creation = |this: &MiriInterpCx<'mir, 'tcx>, loc: Option<(AllocId, Size, ProvenanceExtra)>| // alloc_id, base_offset, orig_tag -> InterpResult<'tcx> { - let global = this.machine.stacked_borrows.as_ref().unwrap().borrow(); + let global = this.machine.borrow_tracker.as_ref().unwrap().borrow(); let ty = place.layout.ty; if global.tracked_pointer_tags.contains(&new_tag) { let mut kind_str = format!("{kind}"); @@ -743,7 +547,7 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' _ => write!(kind_str, " (pointee type {ty})").unwrap(), }; this.emit_diagnostic(NonHaltingDiagnostic::CreatedPointerTag( - new_tag.0, + new_tag.inner(), Some(kind_str), loc.map(|(alloc_id, base_offset, orig_tag)| (alloc_id, alloc_range(base_offset, size), orig_tag)), )); @@ -762,9 +566,7 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' // uncovers a non-supported `extern static`. let extra = this.get_alloc_extra(alloc_id)?; let mut stacked_borrows = extra - .stacked_borrows - .as_ref() - .expect("we should have Stacked Borrows data") + .borrow_tracker_sb() .borrow_mut(); // Note that we create a *second* `DiagnosticCxBuilder` below for the actual retag. // FIXME: can this be done cleaner? @@ -780,7 +582,7 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' if protect.is_some() { dcx.log_protector(); } - } + }, AllocKind::Function | AllocKind::VTable | AllocKind::Dead => { // No stacked borrows on these allocations. } @@ -839,9 +641,9 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' if let Some(protect) = protect { // See comment in `Stack::item_invalidated` for why we store the tag twice. - this.frame_mut().extra.stacked_borrows.as_mut().unwrap().protected_tags.push(new_tag); + this.frame_mut().extra.borrow_tracker.as_mut().unwrap().protected_tags.push(new_tag); this.machine - .stacked_borrows + .borrow_tracker .as_mut() .unwrap() .get_mut() @@ -855,15 +657,17 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' let (perm, access) = match kind { RefKind::Unique { two_phase } => { // Permission is Unique only if the type is `Unpin` and this is not twophase - let perm = if !two_phase && place.layout.ty.is_unpin(*this.tcx, this.param_env()) { - Permission::Unique + if !two_phase && place.layout.ty.is_unpin(*this.tcx, this.param_env()) { + (Permission::Unique, Some(AccessKind::Write)) } else { - Permission::SharedReadWrite - }; - // We do an access for all full borrows, even if `!Unpin`. - let access = if !two_phase { Some(AccessKind::Write) } else { None }; - (perm, access) + // FIXME: We emit `dereferenceable` for `!Unpin` mutable references, so we + // should do fake accesses here. But then we run into + // <https://github.com/rust-lang/unsafe-code-guidelines/issues/381>, so for now + // we don't do that. + (Permission::SharedReadWrite, None) + } } + RefKind::Box => (Permission::Unique, Some(AccessKind::Write)), RefKind::Raw { mutable: true } => { // Creating a raw ptr does not count as an access (Permission::SharedReadWrite, None) @@ -875,11 +679,7 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' // We have to use shared references to alloc/memory_extra here since // `visit_freeze_sensitive` needs to access the global state. let alloc_extra = this.get_alloc_extra(alloc_id)?; - let mut stacked_borrows = alloc_extra - .stacked_borrows - .as_ref() - .expect("we should have Stacked Borrows data") - .borrow_mut(); + let mut stacked_borrows = alloc_extra.borrow_tracker_sb().borrow_mut(); this.visit_freeze_sensitive(place, size, |mut range, frozen| { // Adjust range. range.start += base_offset; @@ -900,7 +700,7 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' false }; let item = Item::new(new_tag, perm, protected); - let global = this.machine.stacked_borrows.as_ref().unwrap().borrow(); + let global = this.machine.borrow_tracker.as_ref().unwrap().borrow(); let dcx = DiagnosticCxBuilder::retag( &this.machine, retag_cause, @@ -929,14 +729,10 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' // Note that this asserts that the allocation is mutable -- but since we are creating a // mutable pointer, that seems reasonable. let (alloc_extra, machine) = this.get_alloc_extra_mut(alloc_id)?; - let stacked_borrows = alloc_extra - .stacked_borrows - .as_mut() - .expect("we should have Stacked Borrows data") - .get_mut(); + let stacked_borrows = alloc_extra.borrow_tracker_sb_mut().get_mut(); let item = Item::new(new_tag, perm, protect.is_some()); let range = alloc_range(base_offset, size); - let global = machine.stacked_borrows.as_ref().unwrap().borrow(); + let global = machine.borrow_tracker.as_ref().unwrap().borrow(); let dcx = DiagnosticCxBuilder::retag( machine, retag_cause, @@ -960,8 +756,8 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' } /// Retags an indidual pointer, returning the retagged version. - /// `mutbl` can be `None` to make this a raw pointer. - fn retag_reference( + /// `kind` indicates what kind of reference is being created. + fn sb_retag_reference( &mut self, val: &ImmTy<'tcx, Provenance>, kind: RefKind, @@ -981,10 +777,10 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' }; // Compute new borrow. - let new_tag = this.machine.stacked_borrows.as_mut().unwrap().get_mut().new_ptr(); + let new_tag = this.machine.borrow_tracker.as_mut().unwrap().get_mut().new_ptr(); // Reborrow. - let alloc_id = this.reborrow(&place, size, kind, retag_cause, new_tag, protect)?; + let alloc_id = this.sb_reborrow(&place, size, kind, retag_cause, new_tag, protect)?; // Adjust pointer. let new_place = place.map_provenance(|p| { @@ -993,7 +789,7 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' Some(alloc_id) => { // If `reborrow` could figure out the AllocId of this ptr, hard-code it into the new one. // Even if we started out with a wildcard, this newly retagged pointer is tied to that allocation. - Provenance::Concrete { alloc_id, sb: new_tag } + Provenance::Concrete { alloc_id, tag: new_tag } } None => { // Looks like this has to stay a wildcard pointer. @@ -1011,9 +807,13 @@ trait EvalContextPrivExt<'mir: 'ecx, 'tcx: 'mir, 'ecx>: crate::MiriInterpCxExt<' impl<'mir, 'tcx: 'mir> EvalContextExt<'mir, 'tcx> for crate::MiriInterpCx<'mir, 'tcx> {} pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { - fn retag(&mut self, kind: RetagKind, place: &PlaceTy<'tcx, Provenance>) -> InterpResult<'tcx> { + fn sb_retag( + &mut self, + kind: RetagKind, + place: &PlaceTy<'tcx, Provenance>, + ) -> InterpResult<'tcx> { let this = self.eval_context_mut(); - let retag_fields = this.machine.stacked_borrows.as_mut().unwrap().get_mut().retag_fields; + let retag_fields = this.machine.borrow_tracker.as_mut().unwrap().get_mut().retag_fields; let retag_cause = match kind { RetagKind::TwoPhase { .. } => RetagCause::TwoPhase, RetagKind::FnEntry => RetagCause::FnEntry, @@ -1039,7 +839,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { protector: Option<ProtectorKind>, ) -> InterpResult<'tcx> { let val = self.ecx.read_immediate(&self.ecx.place_to_op(place)?)?; - let val = self.ecx.retag_reference(&val, ref_kind, retag_cause, protector)?; + let val = self.ecx.sb_retag_reference(&val, ref_kind, retag_cause, protector)?; self.ecx.write_immediate(*val, place)?; Ok(()) } @@ -1058,7 +858,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { // Boxes get a weak protectors, since they may be deallocated. self.retag_place( place, - RefKind::Unique { two_phase: false }, + RefKind::Box, self.retag_cause, /*protector*/ (self.kind == RetagKind::FnEntry).then_some(ProtectorKind::WeakProtector), @@ -1138,7 +938,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { /// /// This is a HACK because there is nothing in MIR that would make the retag /// explicit. Also see <https://github.com/rust-lang/rust/issues/71117>. - fn retag_return_place(&mut self) -> InterpResult<'tcx> { + fn sb_retag_return_place(&mut self) -> InterpResult<'tcx> { let this = self.eval_context_mut(); let return_place = &this.frame().return_place; if return_place.layout.is_zst() { @@ -1153,7 +953,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { let ptr_layout = this.layout_of(this.tcx.mk_mut_ptr(return_place.layout.ty))?; let val = ImmTy::from_immediate(return_place.to_ref(this), ptr_layout); // Reborrow it. With protection! That is part of the point. - let val = this.retag_reference( + let val = this.sb_retag_reference( &val, RefKind::Unique { two_phase: false }, RetagCause::FnReturn, @@ -1167,7 +967,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } /// Mark the given tag as exposed. It was found on a pointer with the given AllocId. - fn expose_tag(&mut self, alloc_id: AllocId, tag: SbTag) -> InterpResult<'tcx> { + fn sb_expose_tag(&mut self, alloc_id: AllocId, tag: BorTag) -> InterpResult<'tcx> { let this = self.eval_context_mut(); // Function pointers and dead objects don't have an alloc_extra so we ignore them. @@ -1181,7 +981,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { // uncovers a non-supported `extern static`. let alloc_extra = this.get_alloc_extra(alloc_id)?; trace!("Stacked Borrows tag {tag:?} exposed in {alloc_id:?}"); - alloc_extra.stacked_borrows.as_ref().unwrap().borrow_mut().exposed_tags.insert(tag); + alloc_extra.borrow_tracker_sb().borrow_mut().exposed_tags.insert(tag); } AllocKind::Function | AllocKind::VTable | AllocKind::Dead => { // No stacked borrows on these allocations. @@ -1193,7 +993,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { fn print_stacks(&mut self, alloc_id: AllocId) -> InterpResult<'tcx> { let this = self.eval_context_mut(); let alloc_extra = this.get_alloc_extra(alloc_id)?; - let stacks = alloc_extra.stacked_borrows.as_ref().unwrap().borrow(); + let stacks = alloc_extra.borrow_tracker_sb().borrow(); for (range, stack) in stacks.stacks.iter_all() { print!("{range:?}: ["); if let Some(bottom) = stack.unknown_bottom() { diff --git a/src/tools/miri/src/stacked_borrows/stack.rs b/src/tools/miri/src/borrow_tracker/stacked_borrows/stack.rs index 51a6fba6df0..1d5cfec3500 100644 --- a/src/tools/miri/src/stacked_borrows/stack.rs +++ b/src/tools/miri/src/borrow_tracker/stacked_borrows/stack.rs @@ -3,11 +3,14 @@ use std::ops::Range; use rustc_data_structures::fx::FxHashSet; -use crate::stacked_borrows::{AccessKind, Item, Permission, SbTag}; +use crate::borrow_tracker::{ + stacked_borrows::{Item, Permission}, + AccessKind, BorTag, +}; use crate::ProvenanceExtra; /// Exactly what cache size we should use is a difficult tradeoff. There will always be some -/// workload which has a `SbTag` working set which exceeds the size of the cache, and ends up +/// workload which has a `BorTag` working set which exceeds the size of the cache, and ends up /// falling back to linear searches of the borrow stack very often. /// The cost of making this value too large is that the loop in `Stack::insert` which ensures the /// entries in the cache stay correct after an insert becomes expensive. @@ -28,7 +31,7 @@ pub struct Stack { /// than `id`. /// When the bottom is unknown, `borrows` always has a `SharedReadOnly` or `Unique` at the bottom; /// we never have the unknown-to-known boundary in an SRW group. - unknown_bottom: Option<SbTag>, + unknown_bottom: Option<BorTag>, /// A small LRU cache of searches of the borrow stack. #[cfg(feature = "stack-cache")] @@ -40,7 +43,7 @@ pub struct Stack { } impl Stack { - pub fn retain(&mut self, tags: &FxHashSet<SbTag>) { + pub fn retain(&mut self, tags: &FxHashSet<BorTag>) { let mut first_removed = None; // We never consider removing the bottom-most tag. For stacks without an unknown @@ -185,7 +188,7 @@ impl<'tcx> Stack { &mut self, access: AccessKind, tag: ProvenanceExtra, - exposed_tags: &FxHashSet<SbTag>, + exposed_tags: &FxHashSet<BorTag>, ) -> Result<Option<usize>, ()> { #[cfg(all(feature = "stack-cache", debug_assertions))] self.verify_cache_consistency(); @@ -219,12 +222,12 @@ impl<'tcx> Stack { // Couldn't find it in the stack; but if there is an unknown bottom it might be there. let found = self.unknown_bottom.is_some_and(|unknown_limit| { - tag.0 < unknown_limit.0 // unknown_limit is an upper bound for what can be in the unknown bottom. + tag < unknown_limit // unknown_limit is an upper bound for what can be in the unknown bottom. }); if found { Ok(None) } else { Err(()) } } - fn find_granting_tagged(&mut self, access: AccessKind, tag: SbTag) -> Option<usize> { + fn find_granting_tagged(&mut self, access: AccessKind, tag: BorTag) -> Option<usize> { #[cfg(feature = "stack-cache")] if let Some(idx) = self.find_granting_cache(access, tag) { return Some(idx); @@ -243,7 +246,7 @@ impl<'tcx> Stack { } #[cfg(feature = "stack-cache")] - fn find_granting_cache(&mut self, access: AccessKind, tag: SbTag) -> Option<usize> { + fn find_granting_cache(&mut self, access: AccessKind, tag: BorTag) -> Option<usize> { // This looks like a common-sense optimization; we're going to do a linear search of the // cache or the borrow stack to scan the shorter of the two. This optimization is miniscule // and this check actually ensures we do not access an invalid cache. @@ -349,11 +352,11 @@ impl<'tcx> Stack { self.borrows.len() } - pub fn unknown_bottom(&self) -> Option<SbTag> { + pub fn unknown_bottom(&self) -> Option<BorTag> { self.unknown_bottom } - pub fn set_unknown_bottom(&mut self, tag: SbTag) { + pub fn set_unknown_bottom(&mut self, tag: BorTag) { // We clear the borrow stack but the lookup cache doesn't support clearing per se. Instead, // there is a check explained in `find_granting_cache` which protects against accessing the // cache when it has been cleared and not yet refilled. diff --git a/src/tools/miri/src/concurrency/data_race.rs b/src/tools/miri/src/concurrency/data_race.rs index cfbeb347cab..bcbf45a3d24 100644 --- a/src/tools/miri/src/concurrency/data_race.rs +++ b/src/tools/miri/src/concurrency/data_race.rs @@ -59,7 +59,7 @@ use super::{ weak_memory::EvalContextExt as _, }; -pub type AllocExtra = VClockAlloc; +pub type AllocState = VClockAlloc; /// Valid atomic read-write orderings, alias of atomic::Ordering (not non-exhaustive). #[derive(Copy, Clone, PartialEq, Eq, Debug)] @@ -670,7 +670,7 @@ pub struct VClockAlloc { } impl VisitTags for VClockAlloc { - fn visit_tags(&self, _visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, _visit: &mut dyn FnMut(BorTag)) { // No tags here. } } @@ -1220,7 +1220,7 @@ pub struct GlobalState { } impl VisitTags for GlobalState { - fn visit_tags(&self, _visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, _visit: &mut dyn FnMut(BorTag)) { // We don't have any tags. } } diff --git a/src/tools/miri/src/concurrency/init_once.rs b/src/tools/miri/src/concurrency/init_once.rs index eb42cdf80ab..9c9d505297c 100644 --- a/src/tools/miri/src/concurrency/init_once.rs +++ b/src/tools/miri/src/concurrency/init_once.rs @@ -45,7 +45,7 @@ pub(super) struct InitOnce<'mir, 'tcx> { } impl<'mir, 'tcx> VisitTags for InitOnce<'mir, 'tcx> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { for waiter in self.waiters.iter() { waiter.callback.visit_tags(visit); } diff --git a/src/tools/miri/src/concurrency/sync.rs b/src/tools/miri/src/concurrency/sync.rs index dc4b435b710..402c9ce6fc9 100644 --- a/src/tools/miri/src/concurrency/sync.rs +++ b/src/tools/miri/src/concurrency/sync.rs @@ -181,7 +181,7 @@ pub(crate) struct SynchronizationState<'mir, 'tcx> { } impl<'mir, 'tcx> VisitTags for SynchronizationState<'mir, 'tcx> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { for init_once in self.init_onces.iter() { init_once.visit_tags(visit); } diff --git a/src/tools/miri/src/concurrency/thread.rs b/src/tools/miri/src/concurrency/thread.rs index dacb3a9b88f..03f9ed351fb 100644 --- a/src/tools/miri/src/concurrency/thread.rs +++ b/src/tools/miri/src/concurrency/thread.rs @@ -3,6 +3,7 @@ use std::cell::RefCell; use std::collections::hash_map::Entry; use std::num::TryFromIntError; +use std::task::Poll; use std::time::{Duration, SystemTime}; use log::trace; @@ -16,18 +17,17 @@ use rustc_target::spec::abi::Abi; use crate::concurrency::data_race; use crate::concurrency::sync::SynchronizationState; +use crate::shims::tls; use crate::*; #[derive(Clone, Copy, Debug, PartialEq, Eq)] -pub enum SchedulingAction { +enum SchedulingAction { /// Execute step on the active thread. ExecuteStep, /// Execute a timeout callback. ExecuteTimeoutCallback, - /// Execute destructors of the active thread. - ExecuteDtors, - /// Stop the program. - Stop, + /// Wait for a bit, until there is a timeout to be called. + Sleep(Duration), } /// Trait for callbacks that can be executed when some event happens, such as after a timeout. @@ -41,9 +41,6 @@ type TimeoutCallback<'mir, 'tcx> = Box<dyn MachineCallback<'mir, 'tcx> + 'tcx>; #[derive(Clone, Copy, Debug, PartialOrd, Ord, PartialEq, Eq, Hash)] pub struct ThreadId(u32); -/// The main thread. When it terminates, the whole application terminates. -const MAIN_THREAD: ThreadId = ThreadId(0); - impl ThreadId { pub fn to_u32(self) -> u32 { self.0 @@ -116,7 +113,13 @@ pub struct Thread<'mir, 'tcx> { thread_name: Option<Vec<u8>>, /// The virtual call stack. - stack: Vec<Frame<'mir, 'tcx, Provenance, FrameData<'tcx>>>, + stack: Vec<Frame<'mir, 'tcx, Provenance, FrameExtra<'tcx>>>, + + /// The function to call when the stack ran empty, to figure out what to do next. + /// Conceptually, this is the interpreter implementation of the things that happen 'after' the + /// Rust language entry point for this thread returns (usually implemented by the C or OS runtime). + /// (`None` is an error, it means the callback has not been set up yet or is actively running.) + pub(crate) on_stack_empty: Option<StackEmptyCallback<'mir, 'tcx>>, /// The index of the topmost user-relevant frame in `stack`. This field must contain /// the value produced by `get_top_user_relevant_frame`. @@ -137,19 +140,10 @@ pub struct Thread<'mir, 'tcx> { pub(crate) last_error: Option<MPlaceTy<'tcx, Provenance>>, } -impl<'mir, 'tcx> Thread<'mir, 'tcx> { - /// Check if the thread is done executing (no more stack frames). If yes, - /// change the state to terminated and return `true`. - fn check_terminated(&mut self) -> bool { - if self.state == ThreadState::Enabled { - if self.stack.is_empty() { - self.state = ThreadState::Terminated; - return true; - } - } - false - } +pub type StackEmptyCallback<'mir, 'tcx> = + Box<dyn FnMut(&mut MiriInterpCx<'mir, 'tcx>) -> InterpResult<'tcx, Poll<()>>>; +impl<'mir, 'tcx> Thread<'mir, 'tcx> { /// Get the name of the current thread, or `<unnamed>` if it was not set. fn thread_name(&self) -> &[u8] { if let Some(ref thread_name) = self.thread_name { thread_name } else { b"<unnamed>" } @@ -202,30 +196,23 @@ impl<'mir, 'tcx> std::fmt::Debug for Thread<'mir, 'tcx> { } } -impl<'mir, 'tcx> Default for Thread<'mir, 'tcx> { - fn default() -> Self { +impl<'mir, 'tcx> Thread<'mir, 'tcx> { + fn new(name: Option<&str>, on_stack_empty: Option<StackEmptyCallback<'mir, 'tcx>>) -> Self { Self { state: ThreadState::Enabled, - thread_name: None, + thread_name: name.map(|name| Vec::from(name.as_bytes())), stack: Vec::new(), top_user_relevant_frame: None, join_status: ThreadJoinStatus::Joinable, panic_payload: None, last_error: None, + on_stack_empty, } } } -impl<'mir, 'tcx> Thread<'mir, 'tcx> { - fn new(name: &str) -> Self { - let mut thread = Thread::default(); - thread.thread_name = Some(Vec::from(name.as_bytes())); - thread - } -} - impl VisitTags for Thread<'_, '_> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let Thread { panic_payload, last_error, @@ -234,6 +221,7 @@ impl VisitTags for Thread<'_, '_> { state: _, thread_name: _, join_status: _, + on_stack_empty: _, // we assume the closure captures no GC-relevant state } = self; panic_payload.visit_tags(visit); @@ -244,8 +232,8 @@ impl VisitTags for Thread<'_, '_> { } } -impl VisitTags for Frame<'_, '_, Provenance, FrameData<'_>> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { +impl VisitTags for Frame<'_, '_, Provenance, FrameExtra<'_>> { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let Frame { return_place, locals, @@ -327,24 +315,8 @@ pub struct ThreadManager<'mir, 'tcx> { timeout_callbacks: FxHashMap<ThreadId, TimeoutCallbackInfo<'mir, 'tcx>>, } -impl<'mir, 'tcx> Default for ThreadManager<'mir, 'tcx> { - fn default() -> Self { - let mut threads = IndexVec::new(); - // Create the main thread and add it to the list of threads. - threads.push(Thread::new("main")); - Self { - active_thread: ThreadId::new(0), - threads, - sync: SynchronizationState::default(), - thread_local_alloc_ids: Default::default(), - yield_active_thread: false, - timeout_callbacks: FxHashMap::default(), - } - } -} - impl VisitTags for ThreadManager<'_, '_> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let ThreadManager { threads, thread_local_alloc_ids, @@ -367,8 +339,28 @@ impl VisitTags for ThreadManager<'_, '_> { } } +impl<'mir, 'tcx> Default for ThreadManager<'mir, 'tcx> { + fn default() -> Self { + let mut threads = IndexVec::new(); + // Create the main thread and add it to the list of threads. + threads.push(Thread::new(Some("main"), None)); + Self { + active_thread: ThreadId::new(0), + threads, + sync: SynchronizationState::default(), + thread_local_alloc_ids: Default::default(), + yield_active_thread: false, + timeout_callbacks: FxHashMap::default(), + } + } +} + impl<'mir, 'tcx: 'mir> ThreadManager<'mir, 'tcx> { - pub(crate) fn init(ecx: &mut MiriInterpCx<'mir, 'tcx>) { + pub(crate) fn init( + ecx: &mut MiriInterpCx<'mir, 'tcx>, + on_main_stack_empty: StackEmptyCallback<'mir, 'tcx>, + ) { + ecx.machine.threads.threads[ThreadId::new(0)].on_stack_empty = Some(on_main_stack_empty); if ecx.tcx.sess.target.os.as_ref() != "windows" { // The main thread can *not* be joined on except on windows. ecx.machine.threads.threads[ThreadId::new(0)].join_status = ThreadJoinStatus::Detached; @@ -393,27 +385,27 @@ impl<'mir, 'tcx: 'mir> ThreadManager<'mir, 'tcx> { } /// Borrow the stack of the active thread. - pub fn active_thread_stack(&self) -> &[Frame<'mir, 'tcx, Provenance, FrameData<'tcx>>] { + pub fn active_thread_stack(&self) -> &[Frame<'mir, 'tcx, Provenance, FrameExtra<'tcx>>] { &self.threads[self.active_thread].stack } /// Mutably borrow the stack of the active thread. fn active_thread_stack_mut( &mut self, - ) -> &mut Vec<Frame<'mir, 'tcx, Provenance, FrameData<'tcx>>> { + ) -> &mut Vec<Frame<'mir, 'tcx, Provenance, FrameExtra<'tcx>>> { &mut self.threads[self.active_thread].stack } pub fn all_stacks( &self, - ) -> impl Iterator<Item = &[Frame<'mir, 'tcx, Provenance, FrameData<'tcx>>]> { + ) -> impl Iterator<Item = &[Frame<'mir, 'tcx, Provenance, FrameExtra<'tcx>>]> { self.threads.iter().map(|t| &t.stack[..]) } /// Create a new thread and returns its id. - fn create_thread(&mut self) -> ThreadId { + fn create_thread(&mut self, on_stack_empty: StackEmptyCallback<'mir, 'tcx>) -> ThreadId { let new_thread_id = ThreadId::new(self.threads.len()); - self.threads.push(Default::default()); + self.threads.push(Thread::new(None, Some(on_stack_empty))); new_thread_id } @@ -458,7 +450,7 @@ impl<'mir, 'tcx: 'mir> ThreadManager<'mir, 'tcx> { } /// Get a mutable borrow of the currently active thread. - fn active_thread_mut(&mut self) -> &mut Thread<'mir, 'tcx> { + pub fn active_thread_mut(&mut self) -> &mut Thread<'mir, 'tcx> { &mut self.threads[self.active_thread] } @@ -669,18 +661,6 @@ impl<'mir, 'tcx: 'mir> ThreadManager<'mir, 'tcx> { /// long as we can and switch only when we have to (the active thread was /// blocked, terminated, or has explicitly asked to be preempted). fn schedule(&mut self, clock: &Clock) -> InterpResult<'tcx, SchedulingAction> { - // Check whether the thread has **just** terminated (`check_terminated` - // checks whether the thread has popped all its stack and if yes, sets - // the thread state to terminated). - if self.threads[self.active_thread].check_terminated() { - return Ok(SchedulingAction::ExecuteDtors); - } - // If we get here again and the thread is *still* terminated, there are no more dtors to run. - if self.threads[MAIN_THREAD].state == ThreadState::Terminated { - // The main thread terminated; stop the program. - // We do *not* run TLS dtors of remaining threads, which seems to match rustc behavior. - return Ok(SchedulingAction::Stop); - } // This thread and the program can keep going. if self.threads[self.active_thread].state == ThreadState::Enabled && !self.yield_active_thread @@ -688,18 +668,18 @@ impl<'mir, 'tcx: 'mir> ThreadManager<'mir, 'tcx> { // The currently active thread is still enabled, just continue with it. return Ok(SchedulingAction::ExecuteStep); } - // The active thread yielded. Let's see if there are any timeouts to take care of. We do - // this *before* running any other thread, to ensure that timeouts "in the past" fire before - // any other thread can take an action. This ensures that for `pthread_cond_timedwait`, "an - // error is returned if [...] the absolute time specified by abstime has already been passed - // at the time of the call". + // The active thread yielded or got terminated. Let's see if there are any timeouts to take + // care of. We do this *before* running any other thread, to ensure that timeouts "in the + // past" fire before any other thread can take an action. This ensures that for + // `pthread_cond_timedwait`, "an error is returned if [...] the absolute time specified by + // abstime has already been passed at the time of the call". // <https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_cond_timedwait.html> let potential_sleep_time = self.timeout_callbacks.values().map(|info| info.call_time.get_wait_time(clock)).min(); if potential_sleep_time == Some(Duration::new(0, 0)) { return Ok(SchedulingAction::ExecuteTimeoutCallback); } - // No callbacks scheduled, pick a regular thread to execute. + // No callbacks immediately scheduled, pick a regular thread to execute. // The active thread blocked or yielded. So we go search for another enabled thread. // Crucially, we start searching at the current active thread ID, rather than at 0, since we // want to avoid always scheduling threads 0 and 1 without ever making progress in thread 2. @@ -730,15 +710,58 @@ impl<'mir, 'tcx: 'mir> ThreadManager<'mir, 'tcx> { // All threads are currently blocked, but we have unexecuted // timeout_callbacks, which may unblock some of the threads. Hence, // sleep until the first callback. - - clock.sleep(sleep_time); - Ok(SchedulingAction::ExecuteTimeoutCallback) + Ok(SchedulingAction::Sleep(sleep_time)) } else { throw_machine_stop!(TerminationInfo::Deadlock); } } } +impl<'mir, 'tcx: 'mir> EvalContextPrivExt<'mir, 'tcx> for MiriInterpCx<'mir, 'tcx> {} +trait EvalContextPrivExt<'mir, 'tcx: 'mir>: MiriInterpCxExt<'mir, 'tcx> { + /// Execute a timeout callback on the callback's thread. + #[inline] + fn run_timeout_callback(&mut self) -> InterpResult<'tcx> { + let this = self.eval_context_mut(); + let (thread, callback) = if let Some((thread, callback)) = + this.machine.threads.get_ready_callback(&this.machine.clock) + { + (thread, callback) + } else { + // get_ready_callback can return None if the computer's clock + // was shifted after calling the scheduler and before the call + // to get_ready_callback (see issue + // https://github.com/rust-lang/miri/issues/1763). In this case, + // just do nothing, which effectively just returns to the + // scheduler. + return Ok(()); + }; + // This back-and-forth with `set_active_thread` is here because of two + // design decisions: + // 1. Make the caller and not the callback responsible for changing + // thread. + // 2. Make the scheduler the only place that can change the active + // thread. + let old_thread = this.set_active_thread(thread); + callback.call(this)?; + this.set_active_thread(old_thread); + Ok(()) + } + + #[inline] + fn run_on_stack_empty(&mut self) -> InterpResult<'tcx, Poll<()>> { + let this = self.eval_context_mut(); + let mut callback = this + .active_thread_mut() + .on_stack_empty + .take() + .expect("`on_stack_empty` not set up, or already running"); + let res = callback(this)?; + this.active_thread_mut().on_stack_empty = Some(callback); + Ok(res) + } +} + // Public interface to thread management. impl<'mir, 'tcx: 'mir> EvalContextExt<'mir, 'tcx> for crate::MiriInterpCx<'mir, 'tcx> {} pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { @@ -773,18 +796,9 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } } + /// Start a regular (non-main) thread. #[inline] - fn create_thread(&mut self) -> ThreadId { - let this = self.eval_context_mut(); - let id = this.machine.threads.create_thread(); - if let Some(data_race) = &mut this.machine.data_race { - data_race.thread_created(&this.machine.threads, id); - } - id - } - - #[inline] - fn start_thread( + fn start_regular_thread( &mut self, thread: Option<MPlaceTy<'tcx, Provenance>>, start_routine: Pointer<Option<Provenance>>, @@ -795,7 +809,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { let this = self.eval_context_mut(); // Create the new thread - let new_thread_id = this.create_thread(); + let new_thread_id = this.machine.threads.create_thread({ + let mut state = tls::TlsDtorsState::default(); + Box::new(move |m| state.on_stack_empty(m)) + }); + if let Some(data_race) = &mut this.machine.data_race { + data_race.thread_created(&this.machine.threads, new_thread_id); + } // Write the current thread-id, switch to the next thread later // to treat this write operation as occuring on the current thread. @@ -889,12 +909,6 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } #[inline] - fn has_terminated(&self, thread_id: ThreadId) -> bool { - let this = self.eval_context_ref(); - this.machine.threads.has_terminated(thread_id) - } - - #[inline] fn have_all_terminated(&self) -> bool { let this = self.eval_context_ref(); this.machine.threads.have_all_terminated() @@ -907,7 +921,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } #[inline] - fn active_thread_stack(&self) -> &[Frame<'mir, 'tcx, Provenance, FrameData<'tcx>>] { + fn active_thread_stack(&self) -> &[Frame<'mir, 'tcx, Provenance, FrameExtra<'tcx>>] { let this = self.eval_context_ref(); this.machine.threads.active_thread_stack() } @@ -915,7 +929,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { #[inline] fn active_thread_stack_mut( &mut self, - ) -> &mut Vec<Frame<'mir, 'tcx, Provenance, FrameData<'tcx>>> { + ) -> &mut Vec<Frame<'mir, 'tcx, Provenance, FrameExtra<'tcx>>> { let this = self.eval_context_mut(); this.machine.threads.active_thread_stack_mut() } @@ -943,26 +957,22 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { where 'mir: 'c, { - let this = self.eval_context_ref(); - this.machine.threads.get_thread_name(thread) + self.eval_context_ref().machine.threads.get_thread_name(thread) } #[inline] fn block_thread(&mut self, thread: ThreadId) { - let this = self.eval_context_mut(); - this.machine.threads.block_thread(thread); + self.eval_context_mut().machine.threads.block_thread(thread); } #[inline] fn unblock_thread(&mut self, thread: ThreadId) { - let this = self.eval_context_mut(); - this.machine.threads.unblock_thread(thread); + self.eval_context_mut().machine.threads.unblock_thread(thread); } #[inline] fn yield_active_thread(&mut self) { - let this = self.eval_context_mut(); - this.machine.threads.yield_active_thread(); + self.eval_context_mut().machine.threads.yield_active_thread(); } #[inline] @@ -995,49 +1005,42 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { this.machine.threads.unregister_timeout_callback_if_exists(thread); } - /// Execute a timeout callback on the callback's thread. - #[inline] - fn run_timeout_callback(&mut self) -> InterpResult<'tcx> { - let this = self.eval_context_mut(); - let (thread, callback) = if let Some((thread, callback)) = - this.machine.threads.get_ready_callback(&this.machine.clock) - { - (thread, callback) - } else { - // get_ready_callback can return None if the computer's clock - // was shifted after calling the scheduler and before the call - // to get_ready_callback (see issue - // https://github.com/rust-lang/miri/issues/1763). In this case, - // just do nothing, which effectively just returns to the - // scheduler. - return Ok(()); - }; - // This back-and-forth with `set_active_thread` is here because of two - // design decisions: - // 1. Make the caller and not the callback responsible for changing - // thread. - // 2. Make the scheduler the only place that can change the active - // thread. - let old_thread = this.set_active_thread(thread); - callback.call(this)?; - this.set_active_thread(old_thread); - Ok(()) - } - - /// Decide which action to take next and on which thread. - #[inline] - fn schedule(&mut self) -> InterpResult<'tcx, SchedulingAction> { + /// Run the core interpreter loop. Returns only when an interrupt occurs (an error or program + /// termination). + fn run_threads(&mut self) -> InterpResult<'tcx, !> { let this = self.eval_context_mut(); - this.machine.threads.schedule(&this.machine.clock) + loop { + match this.machine.threads.schedule(&this.machine.clock)? { + SchedulingAction::ExecuteStep => { + if !this.step()? { + // See if this thread can do something else. + match this.run_on_stack_empty()? { + Poll::Pending => {} // keep going + Poll::Ready(()) => this.terminate_active_thread()?, + } + } + } + SchedulingAction::ExecuteTimeoutCallback => { + this.run_timeout_callback()?; + } + SchedulingAction::Sleep(duration) => { + this.machine.clock.sleep(duration); + } + } + } } /// Handles thread termination of the active thread: wakes up threads joining on this one, /// and deallocated thread-local statics. /// - /// This is called from `tls.rs` after handling the TLS dtors. + /// This is called by the eval loop when a thread's on_stack_empty returns `Ready`. #[inline] - fn thread_terminated(&mut self) -> InterpResult<'tcx> { + fn terminate_active_thread(&mut self) -> InterpResult<'tcx> { let this = self.eval_context_mut(); + let thread = this.active_thread_mut(); + assert!(thread.stack.is_empty(), "only threads with an empty stack can be terminated"); + thread.state = ThreadState::Terminated; + for ptr in this.machine.threads.thread_terminated(this.machine.data_race.as_mut()) { this.deallocate_ptr(ptr.into(), None, MiriMemoryKind::Tls.into())?; } diff --git a/src/tools/miri/src/concurrency/vector_clock.rs b/src/tools/miri/src/concurrency/vector_clock.rs index e7e5b35ac2c..ba04991a588 100644 --- a/src/tools/miri/src/concurrency/vector_clock.rs +++ b/src/tools/miri/src/concurrency/vector_clock.rs @@ -404,67 +404,49 @@ mod tests { assert_eq!( alt_compare, o.map(Ordering::reverse), - "Invalid alt comparison\n l: {:?}\n r: {:?}", - l, - r + "Invalid alt comparison\n l: {l:?}\n r: {r:?}" ); //Test operators with faster implementations assert_eq!( matches!(compare, Some(Ordering::Less)), l < r, - "Invalid (<):\n l: {:?}\n r: {:?}", - l, - r + "Invalid (<):\n l: {l:?}\n r: {r:?}" ); assert_eq!( matches!(compare, Some(Ordering::Less) | Some(Ordering::Equal)), l <= r, - "Invalid (<=):\n l: {:?}\n r: {:?}", - l, - r + "Invalid (<=):\n l: {l:?}\n r: {r:?}" ); assert_eq!( matches!(compare, Some(Ordering::Greater)), l > r, - "Invalid (>):\n l: {:?}\n r: {:?}", - l, - r + "Invalid (>):\n l: {l:?}\n r: {r:?}" ); assert_eq!( matches!(compare, Some(Ordering::Greater) | Some(Ordering::Equal)), l >= r, - "Invalid (>=):\n l: {:?}\n r: {:?}", - l, - r + "Invalid (>=):\n l: {l:?}\n r: {r:?}" ); assert_eq!( matches!(alt_compare, Some(Ordering::Less)), r < l, - "Invalid alt (<):\n l: {:?}\n r: {:?}", - l, - r + "Invalid alt (<):\n l: {l:?}\n r: {r:?}" ); assert_eq!( matches!(alt_compare, Some(Ordering::Less) | Some(Ordering::Equal)), r <= l, - "Invalid alt (<=):\n l: {:?}\n r: {:?}", - l, - r + "Invalid alt (<=):\n l: {l:?}\n r: {r:?}" ); assert_eq!( matches!(alt_compare, Some(Ordering::Greater)), r > l, - "Invalid alt (>):\n l: {:?}\n r: {:?}", - l, - r + "Invalid alt (>):\n l: {l:?}\n r: {r:?}" ); assert_eq!( matches!(alt_compare, Some(Ordering::Greater) | Some(Ordering::Equal)), r >= l, - "Invalid alt (>=):\n l: {:?}\n r: {:?}", - l, - r + "Invalid alt (>=):\n l: {l:?}\n r: {r:?}" ); } } diff --git a/src/tools/miri/src/concurrency/weak_memory.rs b/src/tools/miri/src/concurrency/weak_memory.rs index f2a36572954..391681444d9 100644 --- a/src/tools/miri/src/concurrency/weak_memory.rs +++ b/src/tools/miri/src/concurrency/weak_memory.rs @@ -93,7 +93,7 @@ use super::{ vector_clock::{VClock, VTimestamp, VectorIdx}, }; -pub type AllocExtra = StoreBufferAlloc; +pub type AllocState = StoreBufferAlloc; // Each store buffer must be bounded otherwise it will grow indefinitely. // However, bounding the store buffer means restricting the amount of weak @@ -109,7 +109,7 @@ pub struct StoreBufferAlloc { } impl VisitTags for StoreBufferAlloc { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let Self { store_buffers } = self; for val in store_buffers .borrow() diff --git a/src/tools/miri/src/diagnostics.rs b/src/tools/miri/src/diagnostics.rs index 7658cea10f9..074fa032dcc 100644 --- a/src/tools/miri/src/diagnostics.rs +++ b/src/tools/miri/src/diagnostics.rs @@ -6,12 +6,15 @@ use log::trace; use rustc_span::{source_map::DUMMY_SP, SpanData, Symbol}; use rustc_target::abi::{Align, Size}; -use crate::stacked_borrows::{diagnostics::TagHistory, AccessKind}; +use crate::borrow_tracker::stacked_borrows::diagnostics::TagHistory; use crate::*; /// Details of premature program termination. pub enum TerminationInfo { - Exit(i64), + Exit { + code: i64, + leak_check: bool, + }, Abort(String), UnsupportedInIsolation(String), StackedBorrowsUb { @@ -38,7 +41,7 @@ impl fmt::Display for TerminationInfo { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { use TerminationInfo::*; match self { - Exit(code) => write!(f, "the evaluated program completed with exit code {code}"), + Exit { code, .. } => write!(f, "the evaluated program completed with exit code {code}"), Abort(msg) => write!(f, "{msg}"), UnsupportedInIsolation(msg) => write!(f, "{msg}"), Int2PtrWithStrictProvenance => @@ -64,9 +67,8 @@ pub enum NonHaltingDiagnostic { /// /// new_kind is `None` for base tags. CreatedPointerTag(NonZeroU64, Option<String>, Option<(AllocId, AllocRange, ProvenanceExtra)>), - /// This `Item` was popped from the borrow stack, either due to an access with the given tag or - /// a deallocation when the second argument is `None`. - PoppedPointerTag(Item, Option<(ProvenanceExtra, AccessKind)>), + /// This `Item` was popped from the borrow stack. The string explains the reason. + PoppedPointerTag(Item, String), CreatedCallId(CallId), CreatedAlloc(AllocId, Size, Align, MemoryKind<MiriMemoryKind>), FreedAlloc(AllocId), @@ -148,11 +150,11 @@ fn prune_stacktrace<'tcx>( /// Emit a custom diagnostic without going through the miri-engine machinery. /// -/// Returns `Some` if this was regular program termination with a given exit code, `None` otherwise. +/// Returns `Some` if this was regular program termination with a given exit code and a `bool` indicating whether a leak check should happen; `None` otherwise. pub fn report_error<'tcx, 'mir>( ecx: &InterpCx<'mir, 'tcx, MiriMachine<'mir, 'tcx>>, e: InterpErrorInfo<'tcx>, -) -> Option<i64> { +) -> Option<(i64, bool)> { use InterpError::*; let mut msg = vec![]; @@ -161,7 +163,7 @@ pub fn report_error<'tcx, 'mir>( let info = info.downcast_ref::<TerminationInfo>().expect("invalid MachineStop payload"); use TerminationInfo::*; let title = match info { - Exit(code) => return Some(*code), + Exit { code, leak_check } => return Some((*code, *leak_check)), Abort(_) => Some("abnormal termination"), UnsupportedInIsolation(_) | Int2PtrWithStrictProvenance => Some("unsupported operation"), @@ -396,15 +398,7 @@ impl<'mir, 'tcx> MiriMachine<'mir, 'tcx> { format!( "created tag {tag:?} for {kind} at {alloc_id:?}{range:?} derived from {orig_tag:?}" ), - PoppedPointerTag(item, tag) => - match tag { - None => format!("popped tracked tag for item {item:?} due to deallocation",), - Some((tag, access)) => { - format!( - "popped tracked tag for item {item:?} due to {access:?} access for {tag:?}", - ) - } - }, + PoppedPointerTag(item, cause) => format!("popped tracked tag for item {item:?}{cause}"), CreatedCallId(id) => format!("function call with id {id}"), CreatedAlloc(AllocId(id), size, align, kind) => format!( diff --git a/src/tools/miri/src/eval.rs b/src/tools/miri/src/eval.rs index 363b647d6c6..7b4973f3b9d 100644 --- a/src/tools/miri/src/eval.rs +++ b/src/tools/miri/src/eval.rs @@ -4,10 +4,12 @@ use std::ffi::{OsStr, OsString}; use std::iter; use std::panic::{self, AssertUnwindSafe}; use std::path::PathBuf; +use std::task::Poll; use std::thread; use log::info; +use crate::borrow_tracker::RetagFields; use rustc_data_structures::fx::FxHashSet; use rustc_hir::def::Namespace; use rustc_hir::def_id::DefId; @@ -20,8 +22,14 @@ use rustc_target::spec::abi::Abi; use rustc_session::config::EntryFnType; +use crate::shims::tls; use crate::*; +/// When the main thread would exit, we will yield to any other thread that is ready to execute. +/// But we must only do that a finite number of times, or a background thread running `loop {}` +/// will hang the program. +const MAIN_THREAD_YIELDS_AT_SHUTDOWN: u32 = 256; + #[derive(Copy, Clone, Debug, PartialEq)] pub enum AlignmentCheck { /// Do not check alignment. @@ -80,7 +88,7 @@ pub struct MiriConfig { /// Determine if validity checking is enabled. pub validate: bool, /// Determines if Stacked Borrows is enabled. - pub stacked_borrows: bool, + pub borrow_tracker: Option<BorrowTrackerMethod>, /// Controls alignment checking. pub check_alignment: AlignmentCheck, /// Controls function [ABI](Abi) checking. @@ -96,7 +104,7 @@ pub struct MiriConfig { /// The seed to use when non-determinism or randomness are required (e.g. ptr-to-int cast, `getrandom()`). pub seed: Option<u64>, /// The stacked borrows pointer ids to report about - pub tracked_pointer_tags: FxHashSet<SbTag>, + pub tracked_pointer_tags: FxHashSet<BorTag>, /// The stacked borrows call IDs to report about pub tracked_call_ids: FxHashSet<CallId>, /// The allocation ids to report about. @@ -131,7 +139,7 @@ pub struct MiriConfig { /// The location of a shared object file to load when calling external functions /// FIXME! consider allowing users to specify paths to multiple SO files, or to a directory pub external_so_file: Option<PathBuf>, - /// Run a garbage collector for SbTags every N basic blocks. + /// Run a garbage collector for BorTags every N basic blocks. pub gc_interval: u32, /// The number of CPUs to be reported by miri. pub num_cpus: u32, @@ -142,7 +150,7 @@ impl Default for MiriConfig { MiriConfig { env: vec![], validate: true, - stacked_borrows: true, + borrow_tracker: Some(BorrowTrackerMethod::StackedBorrows), check_alignment: AlignmentCheck::Int, check_abi: true, isolated_op: IsolatedOp::Reject(RejectOpWith::Abort), @@ -172,17 +180,79 @@ impl Default for MiriConfig { } } -/// Returns a freshly created `InterpCx`, along with an `MPlaceTy` representing -/// the location where the return value of the `start` function will be -/// written to. +/// The state of the main thread. Implementation detail of `on_main_stack_empty`. +#[derive(Default, Debug)] +enum MainThreadState { + #[default] + Running, + TlsDtors(tls::TlsDtorsState), + Yield { + remaining: u32, + }, + Done, +} + +impl MainThreadState { + fn on_main_stack_empty<'tcx>( + &mut self, + this: &mut MiriInterpCx<'_, 'tcx>, + ) -> InterpResult<'tcx, Poll<()>> { + use MainThreadState::*; + match self { + Running => { + *self = TlsDtors(Default::default()); + } + TlsDtors(state) => + match state.on_stack_empty(this)? { + Poll::Pending => {} // just keep going + Poll::Ready(()) => { + // Give background threads a chance to finish by yielding the main thread a + // couple of times -- but only if we would also preempt threads randomly. + if this.machine.preemption_rate > 0.0 { + // There is a non-zero chance they will yield back to us often enough to + // make Miri terminate eventually. + *self = Yield { remaining: MAIN_THREAD_YIELDS_AT_SHUTDOWN }; + } else { + // The other threads did not get preempted, so no need to yield back to + // them. + *self = Done; + } + } + }, + Yield { remaining } => + match remaining.checked_sub(1) { + None => *self = Done, + Some(new_remaining) => { + *remaining = new_remaining; + this.yield_active_thread(); + } + }, + Done => { + // Figure out exit code. + let ret_place = MPlaceTy::from_aligned_ptr( + this.machine.main_fn_ret_place.unwrap().ptr, + this.machine.layouts.isize, + ); + let exit_code = this.read_scalar(&ret_place.into())?.to_machine_isize(this)?; + // Need to call this ourselves since we are not going to return to the scheduler + // loop, and we want the main thread TLS to not show up as memory leaks. + this.terminate_active_thread()?; + // Stop interpreter loop. + throw_machine_stop!(TerminationInfo::Exit { code: exit_code, leak_check: true }); + } + } + Ok(Poll::Pending) + } +} + +/// Returns a freshly created `InterpCx`. /// Public because this is also used by `priroda`. pub fn create_ecx<'mir, 'tcx: 'mir>( tcx: TyCtxt<'tcx>, entry_id: DefId, entry_type: EntryFnType, config: &MiriConfig, -) -> InterpResult<'tcx, (InterpCx<'mir, 'tcx, MiriMachine<'mir, 'tcx>>, MPlaceTy<'tcx, Provenance>)> -{ +) -> InterpResult<'tcx, InterpCx<'mir, 'tcx, MiriMachine<'mir, 'tcx>>> { let param_env = ty::ParamEnv::reveal_all(); let layout_cx = LayoutCx { tcx, param_env }; let mut ecx = InterpCx::new( @@ -193,7 +263,11 @@ pub fn create_ecx<'mir, 'tcx: 'mir>( ); // Some parts of initialization require a full `InterpCx`. - MiriMachine::late_init(&mut ecx, config)?; + MiriMachine::late_init(&mut ecx, config, { + let mut state = MainThreadState::default(); + // Cannot capture anything GC-relevant here. + Box::new(move |m| state.on_main_stack_empty(m)) + })?; // Make sure we have MIR. We check MIR for some stable monomorphic function in libcore. let sentinel = ecx.try_resolve_path(&["core", "ascii", "escape_default"], Namespace::ValueNS); @@ -274,6 +348,7 @@ pub fn create_ecx<'mir, 'tcx: 'mir>( // Return place (in static memory so that it does not count as leak). let ret_place = ecx.allocate(ecx.machine.layouts.isize, MiriMemoryKind::Machine.into())?; + ecx.machine.main_fn_ret_place = Some(*ret_place); // Call start function. match entry_type { @@ -321,7 +396,7 @@ pub fn create_ecx<'mir, 'tcx: 'mir>( } } - Ok((ecx, ret_place)) + Ok(ecx) } /// Evaluates the entry function specified by `entry_id`. @@ -337,7 +412,7 @@ pub fn eval_entry<'tcx>( // Copy setting before we move `config`. let ignore_leaks = config.ignore_leaks; - let (mut ecx, ret_place) = match create_ecx(tcx, entry_id, entry_type, &config) { + let mut ecx = match create_ecx(tcx, entry_id, entry_type, &config) { Ok(v) => v, Err(err) => { err.print_backtrace(); @@ -346,34 +421,17 @@ pub fn eval_entry<'tcx>( }; // Perform the main execution. - let res: thread::Result<InterpResult<'_, i64>> = panic::catch_unwind(AssertUnwindSafe(|| { - // Main loop. - loop { - match ecx.schedule()? { - SchedulingAction::ExecuteStep => { - assert!(ecx.step()?, "a terminated thread was scheduled for execution"); - } - SchedulingAction::ExecuteTimeoutCallback => { - ecx.run_timeout_callback()?; - } - SchedulingAction::ExecuteDtors => { - // This will either enable the thread again (so we go back - // to `ExecuteStep`), or determine that this thread is done - // for good. - ecx.schedule_next_tls_dtor_for_active_thread()?; - } - SchedulingAction::Stop => { - break; - } - } - } - let return_code = ecx.read_scalar(&ret_place.into())?.to_machine_isize(&ecx)?; - Ok(return_code) - })); + let res: thread::Result<InterpResult<'_, !>> = + panic::catch_unwind(AssertUnwindSafe(|| ecx.run_threads())); let res = res.unwrap_or_else(|panic_payload| { ecx.handle_ice(); panic::resume_unwind(panic_payload) }); + let res = match res { + Err(res) => res, + // `Ok` can never happen + Ok(never) => match never {}, + }; // Machine cleanup. Only do this if all threads have terminated; threads that are still running // might cause Stacked Borrows errors (https://github.com/rust-lang/miri/issues/2396). @@ -386,32 +444,26 @@ pub fn eval_entry<'tcx>( } // Process the result. - match res { - Ok(return_code) => { - if !ignore_leaks { - // Check for thread leaks. - if !ecx.have_all_terminated() { - tcx.sess.err( - "the main thread terminated without waiting for all remaining threads", - ); - tcx.sess.note_without_error("pass `-Zmiri-ignore-leaks` to disable this check"); - return None; - } - // Check for memory leaks. - info!("Additonal static roots: {:?}", ecx.machine.static_roots); - let leaks = ecx.leak_report(&ecx.machine.static_roots); - if leaks != 0 { - tcx.sess.err("the evaluated program leaked memory"); - tcx.sess.note_without_error("pass `-Zmiri-ignore-leaks` to disable this check"); - // Ignore the provided return code - let the reported error - // determine the return code. - return None; - } - } - Some(return_code) + let (return_code, leak_check) = report_error(&ecx, res)?; + if leak_check && !ignore_leaks { + // Check for thread leaks. + if !ecx.have_all_terminated() { + tcx.sess.err("the main thread terminated without waiting for all remaining threads"); + tcx.sess.note_without_error("pass `-Zmiri-ignore-leaks` to disable this check"); + return None; + } + // Check for memory leaks. + info!("Additonal static roots: {:?}", ecx.machine.static_roots); + let leaks = ecx.leak_report(&ecx.machine.static_roots); + if leaks != 0 { + tcx.sess.err("the evaluated program leaked memory"); + tcx.sess.note_without_error("pass `-Zmiri-ignore-leaks` to disable this check"); + // Ignore the provided return code - let the reported error + // determine the return code. + return None; } - Err(e) => report_error(&ecx, e), } + Some(return_code) } /// Turns an array of arguments into a Windows command line string. diff --git a/src/tools/miri/src/helpers.rs b/src/tools/miri/src/helpers.rs index f0d8b676881..7fb2539ca5a 100644 --- a/src/tools/miri/src/helpers.rs +++ b/src/tools/miri/src/helpers.rs @@ -554,9 +554,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { assert_eq!( self.eval_context_ref().tcx.sess.target.os, target_os, - "`{}` is only available on the `{}` target OS", - name, - target_os, + "`{name}` is only available on the `{target_os}` target OS", ) } @@ -566,8 +564,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { fn assert_target_os_is_unix(&self, name: &str) { assert!( target_os_is_unix(self.eval_context_ref().tcx.sess.target.os.as_ref()), - "`{}` is only available for supported UNIX family targets", - name, + "`{name}` is only available for supported UNIX family targets", ); } @@ -988,7 +985,7 @@ impl<'mir, 'tcx> MiriMachine<'mir, 'tcx> { self.stack()[frame_idx].current_span() } - fn stack(&self) -> &[Frame<'mir, 'tcx, Provenance, machine::FrameData<'tcx>>] { + fn stack(&self) -> &[Frame<'mir, 'tcx, Provenance, machine::FrameExtra<'tcx>>] { self.threads.active_thread_stack() } @@ -1019,8 +1016,7 @@ where pub fn isolation_abort_error<'tcx>(name: &str) -> InterpResult<'tcx> { throw_machine_stop!(TerminationInfo::UnsupportedInIsolation(format!( - "{} not available when isolation is enabled", - name, + "{name} not available when isolation is enabled", ))) } diff --git a/src/tools/miri/src/intptrcast.rs b/src/tools/miri/src/intptrcast.rs index 9722b7643e4..c26828b11e0 100644 --- a/src/tools/miri/src/intptrcast.rs +++ b/src/tools/miri/src/intptrcast.rs @@ -45,7 +45,7 @@ pub struct GlobalStateInner { } impl VisitTags for GlobalStateInner { - fn visit_tags(&self, _visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, _visit: &mut dyn FnMut(BorTag)) { // Nothing to visit here. } } @@ -105,15 +105,15 @@ impl<'mir, 'tcx> GlobalStateInner { pub fn expose_ptr( ecx: &mut MiriInterpCx<'mir, 'tcx>, alloc_id: AllocId, - sb: SbTag, + tag: BorTag, ) -> InterpResult<'tcx> { let global_state = ecx.machine.intptrcast.get_mut(); // In strict mode, we don't need this, so we can save some cycles by not tracking it. if global_state.provenance_mode != ProvenanceMode::Strict { trace!("Exposing allocation id {alloc_id:?}"); global_state.exposed.insert(alloc_id); - if ecx.machine.stacked_borrows.is_some() { - ecx.expose_tag(alloc_id, sb)?; + if ecx.machine.borrow_tracker.is_some() { + ecx.expose_tag(alloc_id, tag)?; } } Ok(()) diff --git a/src/tools/miri/src/lib.rs b/src/tools/miri/src/lib.rs index 8913f8aa10f..42519797976 100644 --- a/src/tools/miri/src/lib.rs +++ b/src/tools/miri/src/lib.rs @@ -53,6 +53,7 @@ extern crate rustc_session; extern crate rustc_span; extern crate rustc_target; +mod borrow_tracker; mod clock; mod concurrency; mod diagnostics; @@ -64,7 +65,6 @@ mod mono_hash_map; mod operator; mod range_map; mod shims; -mod stacked_borrows; mod tag_gc; // Establish a "crate-wide prelude": we often import `crate::*`. @@ -81,15 +81,21 @@ pub use crate::shims::intrinsics::EvalContextExt as _; pub use crate::shims::os_str::EvalContextExt as _; pub use crate::shims::panic::{CatchUnwindData, EvalContextExt as _}; pub use crate::shims::time::EvalContextExt as _; -pub use crate::shims::tls::{EvalContextExt as _, TlsData}; +pub use crate::shims::tls::TlsData; pub use crate::shims::EvalContextExt as _; +pub use crate::borrow_tracker::stacked_borrows::{ + EvalContextExt as _, Item, Permission, Stack, Stacks, +}; +pub use crate::borrow_tracker::{ + BorTag, BorrowTrackerMethod, CallId, EvalContextExt as _, RetagFields, +}; pub use crate::clock::{Clock, Instant}; pub use crate::concurrency::{ data_race::{AtomicFenceOrd, AtomicReadOrd, AtomicRwOrd, AtomicWriteOrd, EvalContextExt as _}, init_once::{EvalContextExt as _, InitOnceId}, sync::{CondvarId, EvalContextExt as _, MutexId, RwLockId, SyncId}, - thread::{EvalContextExt as _, SchedulingAction, ThreadId, ThreadManager, ThreadState, Time}, + thread::{EvalContextExt as _, StackEmptyCallback, ThreadId, ThreadManager, Time}, }; pub use crate::diagnostics::{ report_error, EvalContextExt as _, NonHaltingDiagnostic, TerminationInfo, @@ -100,15 +106,12 @@ pub use crate::eval::{ pub use crate::helpers::EvalContextExt as _; pub use crate::intptrcast::ProvenanceMode; pub use crate::machine::{ - AllocExtra, FrameData, MiriInterpCx, MiriInterpCxExt, MiriMachine, MiriMemoryKind, + AllocExtra, FrameExtra, MiriInterpCx, MiriInterpCxExt, MiriMachine, MiriMemoryKind, PrimitiveLayouts, Provenance, ProvenanceExtra, PAGE_SIZE, STACK_ADDR, STACK_SIZE, }; pub use crate::mono_hash_map::MonoHashMap; pub use crate::operator::EvalContextExt as _; pub use crate::range_map::RangeMap; -pub use crate::stacked_borrows::{ - CallId, EvalContextExt as _, Item, Permission, RetagFields, SbTag, Stack, Stacks, -}; pub use crate::tag_gc::{EvalContextExt as _, VisitTags}; /// Insert rustc arguments at the beginning of the argument list that Miri wants to be diff --git a/src/tools/miri/src/machine.rs b/src/tools/miri/src/machine.rs index edfef211dc6..c110229c985 100644 --- a/src/tools/miri/src/machine.rs +++ b/src/tools/miri/src/machine.rs @@ -37,9 +37,9 @@ pub const STACK_ADDR: u64 = 32 * PAGE_SIZE; // not really about the "stack", but pub const STACK_SIZE: u64 = 16 * PAGE_SIZE; // whatever /// Extra data stored with each stack frame -pub struct FrameData<'tcx> { +pub struct FrameExtra<'tcx> { /// Extra data for Stacked Borrows. - pub stacked_borrows: Option<stacked_borrows::FrameExtra>, + pub borrow_tracker: Option<borrow_tracker::FrameState>, /// If this is Some(), then this is a special "catch unwind" frame (the frame of `try_fn` /// called by `try`). When this frame is popped during unwinding a panic, @@ -58,23 +58,23 @@ pub struct FrameData<'tcx> { pub is_user_relevant: bool, } -impl<'tcx> std::fmt::Debug for FrameData<'tcx> { +impl<'tcx> std::fmt::Debug for FrameExtra<'tcx> { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { // Omitting `timing`, it does not support `Debug`. - let FrameData { stacked_borrows, catch_unwind, timing: _, is_user_relevant: _ } = self; + let FrameExtra { borrow_tracker, catch_unwind, timing: _, is_user_relevant: _ } = self; f.debug_struct("FrameData") - .field("stacked_borrows", stacked_borrows) + .field("borrow_tracker", borrow_tracker) .field("catch_unwind", catch_unwind) .finish() } } -impl VisitTags for FrameData<'_> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { - let FrameData { catch_unwind, stacked_borrows, timing: _, is_user_relevant: _ } = self; +impl VisitTags for FrameExtra<'_> { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { + let FrameExtra { catch_unwind, borrow_tracker, timing: _, is_user_relevant: _ } = self; catch_unwind.visit_tags(visit); - stacked_borrows.visit_tags(visit); + borrow_tracker.visit_tags(visit); } } @@ -147,7 +147,7 @@ pub enum Provenance { Concrete { alloc_id: AllocId, /// Stacked Borrows tag. - sb: SbTag, + tag: BorTag, }, Wildcard, } @@ -173,7 +173,7 @@ impl std::hash::Hash for Provenance { /// The "extra" information a pointer has over a regular AllocId. #[derive(Copy, Clone, PartialEq)] pub enum ProvenanceExtra { - Concrete(SbTag), + Concrete(BorTag), Wildcard, } @@ -188,7 +188,7 @@ static_assert_size!(Scalar<Provenance>, 32); impl fmt::Debug for Provenance { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { match self { - Provenance::Concrete { alloc_id, sb } => { + Provenance::Concrete { alloc_id, tag } => { // Forward `alternate` flag to `alloc_id` printing. if f.alternate() { write!(f, "[{alloc_id:#?}]")?; @@ -196,7 +196,7 @@ impl fmt::Debug for Provenance { write!(f, "[{alloc_id:?}]")?; } // Print Stacked Borrows tag. - write!(f, "{sb:?}")?; + write!(f, "{tag:?}")?; } Provenance::Wildcard => { write!(f, "[wildcard]")?; @@ -221,9 +221,9 @@ impl interpret::Provenance for Provenance { match (left, right) { // If both are the *same* concrete tag, that is the result. ( - Some(Provenance::Concrete { alloc_id: left_alloc, sb: left_sb }), - Some(Provenance::Concrete { alloc_id: right_alloc, sb: right_sb }), - ) if left_alloc == right_alloc && left_sb == right_sb => left, + Some(Provenance::Concrete { alloc_id: left_alloc, tag: left_tag }), + Some(Provenance::Concrete { alloc_id: right_alloc, tag: right_tag }), + ) if left_alloc == right_alloc && left_tag == right_tag => left, // If one side is a wildcard, the best possible outcome is that it is equal to the other // one, and we use that. (Some(Provenance::Wildcard), o) | (o, Some(Provenance::Wildcard)) => o, @@ -243,7 +243,7 @@ impl fmt::Debug for ProvenanceExtra { } impl ProvenanceExtra { - pub fn and_then<T>(self, f: impl FnOnce(SbTag) -> Option<T>) -> Option<T> { + pub fn and_then<T>(self, f: impl FnOnce(BorTag) -> Option<T>) -> Option<T> { match self { ProvenanceExtra::Concrete(pid) => f(pid), ProvenanceExtra::Wildcard => None, @@ -254,21 +254,21 @@ impl ProvenanceExtra { /// Extra per-allocation data #[derive(Debug, Clone)] pub struct AllocExtra { - /// Stacked Borrows state is only added if it is enabled. - pub stacked_borrows: Option<stacked_borrows::AllocExtra>, + /// Global state of the borrow tracker, if enabled. + pub borrow_tracker: Option<borrow_tracker::AllocState>, /// Data race detection via the use of a vector-clock, /// this is only added if it is enabled. - pub data_race: Option<data_race::AllocExtra>, + pub data_race: Option<data_race::AllocState>, /// Weak memory emulation via the use of store buffers, /// this is only added if it is enabled. - pub weak_memory: Option<weak_memory::AllocExtra>, + pub weak_memory: Option<weak_memory::AllocState>, } impl VisitTags for AllocExtra { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { - let AllocExtra { stacked_borrows, data_race, weak_memory } = self; + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { + let AllocExtra { borrow_tracker, data_race, weak_memory } = self; - stacked_borrows.visit_tags(visit); + borrow_tracker.visit_tags(visit); data_race.visit_tags(visit); weak_memory.visit_tags(visit); } @@ -350,8 +350,8 @@ pub struct MiriMachine<'mir, 'tcx> { // We carry a copy of the global `TyCtxt` for convenience, so methods taking just `&Evaluator` have `tcx` access. pub tcx: TyCtxt<'tcx>, - /// Stacked Borrows global data. - pub stacked_borrows: Option<stacked_borrows::GlobalState>, + /// Global data for borrow tracking. + pub borrow_tracker: Option<borrow_tracker::GlobalState>, /// Data race detector global data. pub data_race: Option<data_race::GlobalState>, @@ -363,6 +363,9 @@ pub struct MiriMachine<'mir, 'tcx> { /// Miri does not expose env vars from the host to the emulated program. pub(crate) env_vars: EnvVars<'tcx>, + /// Return place of the main function. + pub(crate) main_fn_ret_place: Option<MemPlace<Provenance>>, + /// Program arguments (`Option` because we can only initialize them after creating the ecx). /// These are *pointers* to argc/argv because macOS. /// We also need the full command line as one string because of Windows. @@ -460,9 +463,9 @@ pub struct MiriMachine<'mir, 'tcx> { #[cfg(not(target_os = "linux"))] pub external_so_lib: Option<!>, - /// Run a garbage collector for SbTags every N basic blocks. + /// Run a garbage collector for BorTags every N basic blocks. pub(crate) gc_interval: u32, - /// The number of blocks that passed since the last SbTag GC pass. + /// The number of blocks that passed since the last BorTag GC pass. pub(crate) since_gc: u32, /// The number of CPUs to be reported by miri. pub(crate) num_cpus: u32, @@ -477,21 +480,16 @@ impl<'mir, 'tcx> MiriMachine<'mir, 'tcx> { measureme::Profiler::new(out).expect("Couldn't create `measureme` profiler") }); let rng = StdRng::seed_from_u64(config.seed.unwrap_or(0)); - let stacked_borrows = config.stacked_borrows.then(|| { - RefCell::new(stacked_borrows::GlobalStateInner::new( - config.tracked_pointer_tags.clone(), - config.tracked_call_ids.clone(), - config.retag_fields, - )) - }); + let borrow_tracker = config.borrow_tracker.map(|bt| bt.instanciate_global_state(config)); let data_race = config.data_race_detector.then(|| data_race::GlobalState::new(config)); MiriMachine { tcx: layout_cx.tcx, - stacked_borrows, + borrow_tracker, data_race, intptrcast: RefCell::new(intptrcast::GlobalStateInner::new(config)), // `env_vars` depends on a full interpreter so we cannot properly initialize it yet. env_vars: EnvVars::default(), + main_fn_ret_place: None, argc: None, argv: None, cmd_line: None, @@ -556,10 +554,11 @@ impl<'mir, 'tcx> MiriMachine<'mir, 'tcx> { pub(crate) fn late_init( this: &mut MiriInterpCx<'mir, 'tcx>, config: &MiriConfig, + on_main_stack_empty: StackEmptyCallback<'mir, 'tcx>, ) -> InterpResult<'tcx> { EnvVars::init(this, config)?; MiriMachine::init_extern_statics(this)?; - ThreadManager::init(this); + ThreadManager::init(this, on_main_stack_empty); Ok(()) } @@ -651,18 +650,19 @@ impl<'mir, 'tcx> MiriMachine<'mir, 'tcx> { } impl VisitTags for MiriMachine<'_, '_> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { #[rustfmt::skip] let MiriMachine { threads, tls, env_vars, + main_fn_ret_place, argc, argv, cmd_line, extern_statics, dir_handler, - stacked_borrows, + borrow_tracker, data_race, intptrcast, file_handler, @@ -700,8 +700,9 @@ impl VisitTags for MiriMachine<'_, '_> { dir_handler.visit_tags(visit); file_handler.visit_tags(visit); data_race.visit_tags(visit); - stacked_borrows.visit_tags(visit); + borrow_tracker.visit_tags(visit); intptrcast.visit_tags(visit); + main_fn_ret_place.visit_tags(visit); argc.visit_tags(visit); argv.visit_tags(visit); cmd_line.visit_tags(visit); @@ -735,7 +736,7 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { type MemoryKind = MiriMemoryKind; type ExtraFnVal = Dlsym; - type FrameExtra = FrameData<'tcx>; + type FrameExtra = FrameExtra<'tcx>; type AllocExtra = AllocExtra; type Provenance = Provenance; @@ -900,25 +901,24 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { } let alloc = alloc.into_owned(); - let stacks = ecx.machine.stacked_borrows.as_ref().map(|stacked_borrows| { - Stacks::new_allocation(id, alloc.size(), stacked_borrows, kind, &ecx.machine) - }); + let borrow_tracker = ecx + .machine + .borrow_tracker + .as_ref() + .map(|bt| bt.borrow_mut().new_allocation(id, alloc.size(), kind, &ecx.machine)); + let race_alloc = ecx.machine.data_race.as_ref().map(|data_race| { - data_race::AllocExtra::new_allocation( + data_race::AllocState::new_allocation( data_race, &ecx.machine.threads, alloc.size(), kind, ) }); - let buffer_alloc = ecx.machine.weak_memory.then(weak_memory::AllocExtra::new_allocation); + let buffer_alloc = ecx.machine.weak_memory.then(weak_memory::AllocState::new_allocation); let alloc: Allocation<Provenance, Self::AllocExtra> = alloc.adjust_from_tcx( &ecx.tcx, - AllocExtra { - stacked_borrows: stacks.map(RefCell::new), - data_race: race_alloc, - weak_memory: buffer_alloc, - }, + AllocExtra { borrow_tracker, data_race: race_alloc, weak_memory: buffer_alloc }, |ptr| ecx.global_base_pointer(ptr), )?; Ok(Cow::Owned(alloc)) @@ -942,14 +942,14 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { } } let absolute_addr = intptrcast::GlobalStateInner::rel_ptr_to_addr(ecx, ptr); - let sb_tag = if let Some(stacked_borrows) = &ecx.machine.stacked_borrows { - stacked_borrows.borrow_mut().base_ptr_tag(ptr.provenance, &ecx.machine) + let tag = if let Some(borrow_tracker) = &ecx.machine.borrow_tracker { + borrow_tracker.borrow_mut().base_ptr_tag(ptr.provenance, &ecx.machine) } else { // Value does not matter, SB is disabled - SbTag::default() + BorTag::default() }; Pointer::new( - Provenance::Concrete { alloc_id: ptr.provenance, sb: sb_tag }, + Provenance::Concrete { alloc_id: ptr.provenance, tag }, Size::from_bytes(absolute_addr), ) } @@ -967,8 +967,8 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { ptr: Pointer<Self::Provenance>, ) -> InterpResult<'tcx> { match ptr.provenance { - Provenance::Concrete { alloc_id, sb } => - intptrcast::GlobalStateInner::expose_ptr(ecx, alloc_id, sb), + Provenance::Concrete { alloc_id, tag } => + intptrcast::GlobalStateInner::expose_ptr(ecx, alloc_id, tag), Provenance::Wildcard => { // No need to do anything for wildcard pointers as // their provenances have already been previously exposed. @@ -986,11 +986,11 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { let rel = intptrcast::GlobalStateInner::abs_ptr_to_rel(ecx, ptr); rel.map(|(alloc_id, size)| { - let sb = match ptr.provenance { - Provenance::Concrete { sb, .. } => ProvenanceExtra::Concrete(sb), + let tag = match ptr.provenance { + Provenance::Concrete { tag, .. } => ProvenanceExtra::Concrete(tag), Provenance::Wildcard => ProvenanceExtra::Wildcard, }; - (alloc_id, size, sb) + (alloc_id, size, tag) }) } @@ -1005,10 +1005,8 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { if let Some(data_race) = &alloc_extra.data_race { data_race.read(alloc_id, range, machine)?; } - if let Some(stacked_borrows) = &alloc_extra.stacked_borrows { - stacked_borrows - .borrow_mut() - .before_memory_read(alloc_id, prov_extra, range, machine)?; + if let Some(borrow_tracker) = &alloc_extra.borrow_tracker { + borrow_tracker.before_memory_read(alloc_id, prov_extra, range, machine)?; } if let Some(weak_memory) = &alloc_extra.weak_memory { weak_memory.memory_accessed(range, machine.data_race.as_ref().unwrap()); @@ -1027,8 +1025,8 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { if let Some(data_race) = &mut alloc_extra.data_race { data_race.write(alloc_id, range, machine)?; } - if let Some(stacked_borrows) = &mut alloc_extra.stacked_borrows { - stacked_borrows.get_mut().before_memory_write(alloc_id, prov_extra, range, machine)?; + if let Some(borrow_tracker) = &mut alloc_extra.borrow_tracker { + borrow_tracker.before_memory_write(alloc_id, prov_extra, range, machine)?; } if let Some(weak_memory) = &alloc_extra.weak_memory { weak_memory.memory_accessed(range, machine.data_race.as_ref().unwrap()); @@ -1050,16 +1048,10 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { if let Some(data_race) = &mut alloc_extra.data_race { data_race.deallocate(alloc_id, range, machine)?; } - if let Some(stacked_borrows) = &mut alloc_extra.stacked_borrows { - stacked_borrows.get_mut().before_memory_deallocation( - alloc_id, - prove_extra, - range, - machine, - ) - } else { - Ok(()) + if let Some(borrow_tracker) = &mut alloc_extra.borrow_tracker { + borrow_tracker.before_memory_deallocation(alloc_id, prove_extra, range, machine)?; } + Ok(()) } #[inline(always)] @@ -1068,14 +1060,17 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { kind: mir::RetagKind, place: &PlaceTy<'tcx, Provenance>, ) -> InterpResult<'tcx> { - if ecx.machine.stacked_borrows.is_some() { ecx.retag(kind, place) } else { Ok(()) } + if ecx.machine.borrow_tracker.is_some() { + ecx.retag(kind, place)?; + } + Ok(()) } #[inline(always)] fn init_frame_extra( ecx: &mut InterpCx<'mir, 'tcx, Self>, frame: Frame<'mir, 'tcx, Provenance>, - ) -> InterpResult<'tcx, Frame<'mir, 'tcx, Provenance, FrameData<'tcx>>> { + ) -> InterpResult<'tcx, Frame<'mir, 'tcx, Provenance, FrameExtra<'tcx>>> { // Start recording our event before doing anything else let timing = if let Some(profiler) = ecx.machine.profiler.as_ref() { let fn_name = frame.instance.to_string(); @@ -1091,10 +1086,10 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { None }; - let stacked_borrows = ecx.machine.stacked_borrows.as_ref(); + let borrow_tracker = ecx.machine.borrow_tracker.as_ref(); - let extra = FrameData { - stacked_borrows: stacked_borrows.map(|sb| sb.borrow_mut().new_frame(&ecx.machine)), + let extra = FrameExtra { + borrow_tracker: borrow_tracker.map(|bt| bt.borrow_mut().new_frame(&ecx.machine)), catch_unwind: None, timing, is_user_relevant: ecx.machine.is_user_relevant(&frame), @@ -1127,7 +1122,7 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { } } - // Search for SbTags to find all live pointers, then remove all other tags from borrow + // Search for BorTags to find all live pointers, then remove all other tags from borrow // stacks. // When debug assertions are enabled, run the GC as often as possible so that any cases // where it mistakenly removes an important tag become visible. @@ -1153,14 +1148,16 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { let stack_len = ecx.active_thread_stack().len(); ecx.active_thread_mut().set_top_user_relevant_frame(stack_len - 1); } - - if ecx.machine.stacked_borrows.is_some() { ecx.retag_return_place() } else { Ok(()) } + if ecx.machine.borrow_tracker.is_some() { + ecx.retag_return_place()?; + } + Ok(()) } #[inline(always)] fn after_stack_pop( ecx: &mut InterpCx<'mir, 'tcx, Self>, - mut frame: Frame<'mir, 'tcx, Provenance, FrameData<'tcx>>, + mut frame: Frame<'mir, 'tcx, Provenance, FrameExtra<'tcx>>, unwinding: bool, ) -> InterpResult<'tcx, StackPopJump> { if frame.extra.is_user_relevant { @@ -1171,8 +1168,8 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { ecx.active_thread_mut().recompute_top_user_relevant_frame(); } let timing = frame.extra.timing.take(); - if let Some(stacked_borrows) = &ecx.machine.stacked_borrows { - stacked_borrows.borrow_mut().end_call(&frame.extra); + if let Some(borrow_tracker) = &ecx.machine.borrow_tracker { + borrow_tracker.borrow_mut().end_call(&frame.extra); } let res = ecx.handle_stack_pop_unwind(frame.extra, unwinding); if let Some(profiler) = ecx.machine.profiler.as_ref() { diff --git a/src/tools/miri/src/shims/env.rs b/src/tools/miri/src/shims/env.rs index bf6c1f87562..80fb4ff2fe9 100644 --- a/src/tools/miri/src/shims/env.rs +++ b/src/tools/miri/src/shims/env.rs @@ -37,7 +37,7 @@ pub struct EnvVars<'tcx> { } impl VisitTags for EnvVars<'_> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let EnvVars { map, environ } = self; environ.visit_tags(visit); diff --git a/src/tools/miri/src/shims/foreign_items.rs b/src/tools/miri/src/shims/foreign_items.rs index 058f730833b..8370e02b588 100644 --- a/src/tools/miri/src/shims/foreign_items.rs +++ b/src/tools/miri/src/shims/foreign_items.rs @@ -286,7 +286,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { let [code] = this.check_shim(abi, exp_abi, link_name, args)?; // it's really u32 for ExitProcess, but we have to put it into the `Exit` variant anyway let code = this.read_scalar(code)?.to_i32()?; - throw_machine_stop!(TerminationInfo::Exit(code.into())); + throw_machine_stop!(TerminationInfo::Exit { code: code.into(), leak_check: false }); } "abort" => { let [] = this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?; @@ -299,8 +299,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { return Ok(Some(body)); } this.handle_unsupported(format!( - "can't call (diverging) foreign function: {}", - link_name + "can't call (diverging) foreign function: {link_name}" ))?; return Ok(None); } diff --git a/src/tools/miri/src/shims/panic.rs b/src/tools/miri/src/shims/panic.rs index 698e025961d..db3e42facad 100644 --- a/src/tools/miri/src/shims/panic.rs +++ b/src/tools/miri/src/shims/panic.rs @@ -36,7 +36,7 @@ pub struct CatchUnwindData<'tcx> { } impl VisitTags for CatchUnwindData<'_> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let CatchUnwindData { catch_fn, data, dest, ret: _ } = self; catch_fn.visit_tags(visit); data.visit_tags(visit); @@ -125,7 +125,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { fn handle_stack_pop_unwind( &mut self, - mut extra: FrameData<'tcx>, + mut extra: FrameExtra<'tcx>, unwinding: bool, ) -> InterpResult<'tcx, StackPopJump> { let this = self.eval_context_mut(); diff --git a/src/tools/miri/src/shims/time.rs b/src/tools/miri/src/shims/time.rs index bc0b71fbc20..d263aab351b 100644 --- a/src/tools/miri/src/shims/time.rs +++ b/src/tools/miri/src/shims/time.rs @@ -278,7 +278,7 @@ struct UnblockCallback { } impl VisitTags for UnblockCallback { - fn visit_tags(&self, _visit: &mut dyn FnMut(SbTag)) {} + fn visit_tags(&self, _visit: &mut dyn FnMut(BorTag)) {} } impl<'mir, 'tcx: 'mir> MachineCallback<'mir, 'tcx> for UnblockCallback { diff --git a/src/tools/miri/src/shims/tls.rs b/src/tools/miri/src/shims/tls.rs index 5fda8bd7b7d..54fdf2872ab 100644 --- a/src/tools/miri/src/shims/tls.rs +++ b/src/tools/miri/src/shims/tls.rs @@ -1,12 +1,11 @@ //! Implement thread-local storage. use std::collections::btree_map::Entry as BTreeEntry; -use std::collections::hash_map::Entry as HashMapEntry; use std::collections::BTreeMap; +use std::task::Poll; use log::trace; -use rustc_data_structures::fx::FxHashMap; use rustc_middle::ty; use rustc_target::abi::{HasDataLayout, Size}; use rustc_target::spec::abi::Abi; @@ -23,12 +22,12 @@ pub struct TlsEntry<'tcx> { dtor: Option<ty::Instance<'tcx>>, } -#[derive(Clone, Debug)] -struct RunningDtorsState { +#[derive(Default, Debug)] +struct RunningDtorState { /// The last TlsKey used to retrieve a TLS destructor. `None` means that we /// have not tried to retrieve a TLS destructor yet or that we already tried /// all keys. - last_dtor_key: Option<TlsKey>, + last_key: Option<TlsKey>, } #[derive(Debug)] @@ -42,11 +41,6 @@ pub struct TlsData<'tcx> { /// A single per thread destructor of the thread local storage (that's how /// things work on macOS) with a data argument. macos_thread_dtors: BTreeMap<ThreadId, (ty::Instance<'tcx>, Scalar<Provenance>)>, - - /// State for currently running TLS dtors. If this map contains a key for a - /// specific thread, it means that we are in the "destruct" phase, during - /// which some operations are UB. - dtors_running: FxHashMap<ThreadId, RunningDtorsState>, } impl<'tcx> Default for TlsData<'tcx> { @@ -55,7 +49,6 @@ impl<'tcx> Default for TlsData<'tcx> { next_key: 1, // start with 1 as we must not use 0 on Windows keys: Default::default(), macos_thread_dtors: Default::default(), - dtors_running: Default::default(), } } } @@ -143,12 +136,6 @@ impl<'tcx> TlsData<'tcx> { dtor: ty::Instance<'tcx>, data: Scalar<Provenance>, ) -> InterpResult<'tcx> { - if self.dtors_running.contains_key(&thread) { - // UB, according to libstd docs. - throw_ub_format!( - "setting thread's local storage destructor while destructors are already running" - ); - } if self.macos_thread_dtors.insert(thread, (dtor, data)).is_some() { throw_unsup_format!( "setting more than one thread local storage destructor for the same thread is not supported" @@ -211,21 +198,6 @@ impl<'tcx> TlsData<'tcx> { None } - /// Set that dtors are running for `thread`. It is guaranteed not to change - /// the existing values stored in `dtors_running` for this thread. Returns - /// `true` if dtors for `thread` are already running. - fn set_dtors_running_for_thread(&mut self, thread: ThreadId) -> bool { - match self.dtors_running.entry(thread) { - HashMapEntry::Occupied(_) => true, - HashMapEntry::Vacant(entry) => { - // We cannot just do `self.dtors_running.insert` because that - // would overwrite `last_dtor_key` with `None`. - entry.insert(RunningDtorsState { last_dtor_key: None }); - false - } - } - } - /// Delete all TLS entries for the given thread. This function should be /// called after all TLS destructors have already finished. fn delete_all_thread_tls(&mut self, thread_id: ThreadId) { @@ -236,8 +208,8 @@ impl<'tcx> TlsData<'tcx> { } impl VisitTags for TlsData<'_> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { - let TlsData { keys, macos_thread_dtors, next_key: _, dtors_running: _ } = self; + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { + let TlsData { keys, macos_thread_dtors, next_key: _ } = self; for scalar in keys.values().flat_map(|v| v.data.values()) { scalar.visit_tags(visit); @@ -248,13 +220,77 @@ impl VisitTags for TlsData<'_> { } } +#[derive(Debug, Default)] +pub struct TlsDtorsState(TlsDtorsStatePriv); + +#[derive(Debug, Default)] +enum TlsDtorsStatePriv { + #[default] + Init, + PthreadDtors(RunningDtorState), + Done, +} + +impl TlsDtorsState { + pub fn on_stack_empty<'tcx>( + &mut self, + this: &mut MiriInterpCx<'_, 'tcx>, + ) -> InterpResult<'tcx, Poll<()>> { + use TlsDtorsStatePriv::*; + match &mut self.0 { + Init => { + match this.tcx.sess.target.os.as_ref() { + "linux" | "freebsd" | "android" => { + // Run the pthread dtors. + self.0 = PthreadDtors(Default::default()); + } + "macos" => { + // The macOS thread wide destructor runs "before any TLS slots get + // freed", so do that first. + this.schedule_macos_tls_dtor()?; + // When the stack is empty again, go on with the pthread dtors. + self.0 = PthreadDtors(Default::default()); + } + "windows" => { + // Run the special magic hook. + this.schedule_windows_tls_dtors()?; + // And move to the final state. + self.0 = Done; + } + "wasi" | "none" => { + // No OS, no TLS dtors. + // FIXME: should we do something on wasi? + self.0 = Done; + } + os => { + throw_unsup_format!( + "the TLS machinery does not know how to handle OS `{os}`" + ); + } + } + } + PthreadDtors(state) => { + match this.schedule_next_pthread_tls_dtor(state)? { + Poll::Pending => {} // just keep going + Poll::Ready(()) => self.0 = Done, + } + } + Done => { + this.machine.tls.delete_all_thread_tls(this.get_active_thread()); + return Ok(Poll::Ready(())); + } + } + + Ok(Poll::Pending) + } +} + impl<'mir, 'tcx: 'mir> EvalContextPrivExt<'mir, 'tcx> for crate::MiriInterpCx<'mir, 'tcx> {} trait EvalContextPrivExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { /// Schedule TLS destructors for Windows. /// On windows, TLS destructors are managed by std. fn schedule_windows_tls_dtors(&mut self) -> InterpResult<'tcx> { let this = self.eval_context_mut(); - let active_thread = this.get_active_thread(); // Windows has a special magic linker section that is run on certain events. // Instead of searching for that section and supporting arbitrary hooks in there @@ -284,16 +320,12 @@ trait EvalContextPrivExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { None, StackPopCleanup::Root { cleanup: true }, )?; - - this.enable_thread(active_thread); Ok(()) } /// Schedule the MacOS thread destructor of the thread local storage to be - /// executed. Returns `true` if scheduled. - /// - /// Note: It is safe to call this function also on other Unixes. - fn schedule_macos_tls_dtor(&mut self) -> InterpResult<'tcx, bool> { + /// executed. + fn schedule_macos_tls_dtor(&mut self) -> InterpResult<'tcx> { let this = self.eval_context_mut(); let thread_id = this.get_active_thread(); if let Some((instance, data)) = this.machine.tls.macos_thread_dtors.remove(&thread_id) { @@ -306,35 +338,27 @@ trait EvalContextPrivExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { None, StackPopCleanup::Root { cleanup: true }, )?; - - // Enable the thread so that it steps through the destructor which - // we just scheduled. Since we deleted the destructor, it is - // guaranteed that we will schedule it again. The `dtors_running` - // flag will prevent the code from adding the destructor again. - this.enable_thread(thread_id); - Ok(true) - } else { - Ok(false) } + Ok(()) } /// Schedule a pthread TLS destructor. Returns `true` if found /// a destructor to schedule, and `false` otherwise. - fn schedule_next_pthread_tls_dtor(&mut self) -> InterpResult<'tcx, bool> { + fn schedule_next_pthread_tls_dtor( + &mut self, + state: &mut RunningDtorState, + ) -> InterpResult<'tcx, Poll<()>> { let this = self.eval_context_mut(); let active_thread = this.get_active_thread(); - assert!(this.has_terminated(active_thread), "running TLS dtors for non-terminated thread"); // Fetch next dtor after `key`. - let last_key = this.machine.tls.dtors_running[&active_thread].last_dtor_key; - let dtor = match this.machine.tls.fetch_tls_dtor(last_key, active_thread) { + let dtor = match this.machine.tls.fetch_tls_dtor(state.last_key, active_thread) { dtor @ Some(_) => dtor, // We ran each dtor once, start over from the beginning. None => this.machine.tls.fetch_tls_dtor(None, active_thread), }; if let Some((instance, ptr, key)) = dtor { - this.machine.tls.dtors_running.get_mut(&active_thread).unwrap().last_dtor_key = - Some(key); + state.last_key = Some(key); trace!("Running TLS dtor {:?} on {:?} at {:?}", instance, ptr, active_thread); assert!( !ptr.to_machine_usize(this).unwrap() != 0, @@ -349,64 +373,9 @@ trait EvalContextPrivExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { StackPopCleanup::Root { cleanup: true }, )?; - this.enable_thread(active_thread); - return Ok(true); - } - this.machine.tls.dtors_running.get_mut(&active_thread).unwrap().last_dtor_key = None; - - Ok(false) - } -} - -impl<'mir, 'tcx: 'mir> EvalContextExt<'mir, 'tcx> for crate::MiriInterpCx<'mir, 'tcx> {} -pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { - /// Schedule an active thread's TLS destructor to run on the active thread. - /// Note that this function does not run the destructors itself, it just - /// schedules them one by one each time it is called and reenables the - /// thread so that it can be executed normally by the main execution loop. - /// - /// Note: we consistently run TLS destructors for all threads, including the - /// main thread. However, it is not clear that we should run the TLS - /// destructors for the main thread. See issue: - /// <https://github.com/rust-lang/rust/issues/28129>. - fn schedule_next_tls_dtor_for_active_thread(&mut self) -> InterpResult<'tcx> { - let this = self.eval_context_mut(); - let active_thread = this.get_active_thread(); - trace!("schedule_next_tls_dtor_for_active_thread on thread {:?}", active_thread); - - if !this.machine.tls.set_dtors_running_for_thread(active_thread) { - // This is the first time we got asked to schedule a destructor. The - // Windows schedule destructor function must be called exactly once, - // this is why it is in this block. - if this.tcx.sess.target.os == "windows" { - // On Windows, we signal that the thread quit by starting the - // relevant function, reenabling the thread, and going back to - // the scheduler. - this.schedule_windows_tls_dtors()?; - return Ok(()); - } + return Ok(Poll::Pending); } - // The remaining dtors make some progress each time around the scheduler loop, - // until they return `false` to indicate that they are done. - - // The macOS thread wide destructor runs "before any TLS slots get - // freed", so do that first. - if this.schedule_macos_tls_dtor()? { - // We have scheduled a MacOS dtor to run on the thread. Execute it - // to completion and come back here. Scheduling a destructor - // destroys it, so we will not enter this branch again. - return Ok(()); - } - if this.schedule_next_pthread_tls_dtor()? { - // We have scheduled a pthread destructor and removed it from the - // destructors list. Run it to completion and come back here. - return Ok(()); - } - - // All dtors done! - this.machine.tls.delete_all_thread_tls(active_thread); - this.thread_terminated()?; - Ok(()) + Ok(Poll::Ready(())) } } diff --git a/src/tools/miri/src/shims/unix/fs.rs b/src/tools/miri/src/shims/unix/fs.rs index e048d53a17e..988627db561 100644 --- a/src/tools/miri/src/shims/unix/fs.rs +++ b/src/tools/miri/src/shims/unix/fs.rs @@ -278,7 +278,7 @@ pub struct FileHandler { } impl VisitTags for FileHandler { - fn visit_tags(&self, _visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, _visit: &mut dyn FnMut(BorTag)) { // All our FileDescriptor do not have any tags. } } @@ -490,7 +490,7 @@ impl Default for DirHandler { } impl VisitTags for DirHandler { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let DirHandler { streams, next_id: _ } = self; for dir in streams.values() { diff --git a/src/tools/miri/src/shims/unix/linux/sync.rs b/src/tools/miri/src/shims/unix/linux/sync.rs index 292b9d2e7a1..343232c4bbb 100644 --- a/src/tools/miri/src/shims/unix/linux/sync.rs +++ b/src/tools/miri/src/shims/unix/linux/sync.rs @@ -183,7 +183,7 @@ pub fn futex<'tcx>( } impl<'tcx> VisitTags for Callback<'tcx> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let Callback { thread: _, addr_usize: _, dest } = self; dest.visit_tags(visit); } diff --git a/src/tools/miri/src/shims/unix/sync.rs b/src/tools/miri/src/shims/unix/sync.rs index e0afb500cb1..f9b5774f009 100644 --- a/src/tools/miri/src/shims/unix/sync.rs +++ b/src/tools/miri/src/shims/unix/sync.rs @@ -747,7 +747,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } impl<'tcx> VisitTags for Callback<'tcx> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let Callback { active_thread: _, mutex_id: _, id: _, dest } = self; dest.visit_tags(visit); } diff --git a/src/tools/miri/src/shims/unix/thread.rs b/src/tools/miri/src/shims/unix/thread.rs index b43682710bb..5b9dc90f0f0 100644 --- a/src/tools/miri/src/shims/unix/thread.rs +++ b/src/tools/miri/src/shims/unix/thread.rs @@ -19,7 +19,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { let func_arg = this.read_immediate(arg)?; - this.start_thread( + this.start_regular_thread( Some(thread_info_place), start_routine, Abi::C { unwind: false }, diff --git a/src/tools/miri/src/shims/windows/sync.rs b/src/tools/miri/src/shims/windows/sync.rs index 8f414d98dba..6b043c6d2c9 100644 --- a/src/tools/miri/src/shims/windows/sync.rs +++ b/src/tools/miri/src/shims/windows/sync.rs @@ -182,7 +182,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } impl<'tcx> VisitTags for Callback<'tcx> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let Callback { init_once_id: _, pending_place } = self; pending_place.visit_tags(visit); } @@ -315,7 +315,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } impl<'tcx> VisitTags for Callback<'tcx> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let Callback { thread: _, addr: _, dest } = self; dest.visit_tags(visit); } @@ -419,7 +419,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } impl<'tcx> VisitTags for Callback<'tcx> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let Callback { thread: _, condvar_id: _, lock_id: _, mode: _, dest } = self; dest.visit_tags(visit); } diff --git a/src/tools/miri/src/shims/windows/thread.rs b/src/tools/miri/src/shims/windows/thread.rs index 5ed0cb92f9e..25a5194caa0 100644 --- a/src/tools/miri/src/shims/windows/thread.rs +++ b/src/tools/miri/src/shims/windows/thread.rs @@ -46,7 +46,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { throw_unsup_format!("non-null `lpThreadAttributes` in `CreateThread`") } - this.start_thread( + this.start_regular_thread( thread, start_routine, Abi::System { unwind: false }, diff --git a/src/tools/miri/src/tag_gc.rs b/src/tools/miri/src/tag_gc.rs index 73712348f0d..c1194fe2216 100644 --- a/src/tools/miri/src/tag_gc.rs +++ b/src/tools/miri/src/tag_gc.rs @@ -3,11 +3,11 @@ use rustc_data_structures::fx::FxHashSet; use crate::*; pub trait VisitTags { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)); + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)); } impl<T: VisitTags> VisitTags for Option<T> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { if let Some(x) = self { x.visit_tags(visit); } @@ -15,41 +15,41 @@ impl<T: VisitTags> VisitTags for Option<T> { } impl<T: VisitTags> VisitTags for std::cell::RefCell<T> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { self.borrow().visit_tags(visit) } } -impl VisitTags for SbTag { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { +impl VisitTags for BorTag { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { visit(*self) } } impl VisitTags for Provenance { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { - if let Provenance::Concrete { sb, .. } = self { - visit(*sb); + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { + if let Provenance::Concrete { tag, .. } = self { + visit(*tag); } } } impl VisitTags for Pointer<Provenance> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let (prov, _offset) = self.into_parts(); prov.visit_tags(visit); } } impl VisitTags for Pointer<Option<Provenance>> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let (prov, _offset) = self.into_parts(); prov.visit_tags(visit); } } impl VisitTags for Scalar<Provenance> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { match self { Scalar::Ptr(ptr, _) => ptr.visit_tags(visit), Scalar::Int(_) => (), @@ -58,7 +58,7 @@ impl VisitTags for Scalar<Provenance> { } impl VisitTags for Immediate<Provenance> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { match self { Immediate::Scalar(s) => { s.visit_tags(visit); @@ -73,7 +73,7 @@ impl VisitTags for Immediate<Provenance> { } impl VisitTags for MemPlaceMeta<Provenance> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { match self { MemPlaceMeta::Meta(m) => m.visit_tags(visit), MemPlaceMeta::None => {} @@ -82,7 +82,7 @@ impl VisitTags for MemPlaceMeta<Provenance> { } impl VisitTags for MemPlace<Provenance> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { let MemPlace { ptr, meta } = self; ptr.visit_tags(visit); meta.visit_tags(visit); @@ -90,13 +90,13 @@ impl VisitTags for MemPlace<Provenance> { } impl VisitTags for MPlaceTy<'_, Provenance> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { (**self).visit_tags(visit) } } impl VisitTags for Place<Provenance> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { match self { Place::Ptr(p) => p.visit_tags(visit), Place::Local { .. } => { @@ -107,13 +107,13 @@ impl VisitTags for Place<Provenance> { } impl VisitTags for PlaceTy<'_, Provenance> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { (**self).visit_tags(visit) } } impl VisitTags for Operand<Provenance> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { match self { Operand::Immediate(imm) => { imm.visit_tags(visit); @@ -126,7 +126,7 @@ impl VisitTags for Operand<Provenance> { } impl VisitTags for Allocation<Provenance, AllocExtra> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { for prov in self.provenance().provenances() { prov.visit_tags(visit); } @@ -136,7 +136,7 @@ impl VisitTags for Allocation<Provenance, AllocExtra> { } impl VisitTags for crate::MiriInterpCx<'_, '_> { - fn visit_tags(&self, visit: &mut dyn FnMut(SbTag)) { + fn visit_tags(&self, visit: &mut dyn FnMut(BorTag)) { // Memory. self.memory.alloc_map().iter(|it| { for (_id, (_kind, alloc)) in it { @@ -154,7 +154,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: MiriInterpCxExt<'mir, 'tcx> { fn garbage_collect_tags(&mut self) -> InterpResult<'tcx> { let this = self.eval_context_mut(); // No reason to do anything at all if stacked borrows is off. - if this.machine.stacked_borrows.is_none() { + if this.machine.borrow_tracker.is_none() { return Ok(()); } @@ -167,17 +167,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: MiriInterpCxExt<'mir, 'tcx> { Ok(()) } - fn remove_unreachable_tags(&mut self, tags: FxHashSet<SbTag>) { + fn remove_unreachable_tags(&mut self, tags: FxHashSet<BorTag>) { let this = self.eval_context_mut(); this.memory.alloc_map().iter(|it| { for (_id, (_kind, alloc)) in it { - alloc - .extra - .stacked_borrows - .as_ref() - .unwrap() - .borrow_mut() - .remove_unreachable_tags(&tags); + if let Some(bt) = &alloc.extra.borrow_tracker { + bt.remove_unreachable_tags(&tags); + } } }); } diff --git a/src/tools/miri/tests/fail/function_calls/exported_symbol_abi_mismatch.rs b/src/tools/miri/tests/fail/function_calls/exported_symbol_abi_mismatch.rs index dbf72b5b61a..50a0e8e6ede 100644 --- a/src/tools/miri/tests/fail/function_calls/exported_symbol_abi_mismatch.rs +++ b/src/tools/miri/tests/fail/function_calls/exported_symbol_abi_mismatch.rs @@ -12,7 +12,7 @@ fn main() { #[cfg(fn_ptr)] unsafe { std::mem::transmute::<unsafe fn(), unsafe extern "C" fn()>(foo)(); - //[fn_ptr]~^ ERROR: calling a function with calling convention Rust using calling convention C + //~[fn_ptr]^ ERROR: calling a function with calling convention Rust using calling convention C } // `Instance` caching should not suppress ABI check. @@ -28,8 +28,8 @@ fn main() { } unsafe { foo(); - //[no_cache]~^ ERROR: calling a function with calling convention Rust using calling convention C - //[cache]~| ERROR: calling a function with calling convention Rust using calling convention C + //~[no_cache]^ ERROR: calling a function with calling convention Rust using calling convention C + //~[cache]| ERROR: calling a function with calling convention Rust using calling convention C } } } diff --git a/src/tools/miri/tests/fail/function_calls/exported_symbol_bad_unwind2.rs b/src/tools/miri/tests/fail/function_calls/exported_symbol_bad_unwind2.rs index f85ad5ae507..554cbe09cf0 100644 --- a/src/tools/miri/tests/fail/function_calls/exported_symbol_bad_unwind2.rs +++ b/src/tools/miri/tests/fail/function_calls/exported_symbol_bad_unwind2.rs @@ -4,8 +4,8 @@ #[cfg_attr(any(definition, both), rustc_nounwind)] #[no_mangle] extern "C-unwind" fn nounwind() { - //[definition]~^ ERROR: abnormal termination: the program aborted execution - //[both]~^^ ERROR: abnormal termination: the program aborted execution + //~[definition]^ ERROR: abnormal termination: the program aborted execution + //~[both]^^ ERROR: abnormal termination: the program aborted execution panic!(); } @@ -15,5 +15,5 @@ fn main() { fn nounwind(); } unsafe { nounwind() } - //[extern_block]~^ ERROR: unwinding past a stack frame that does not allow unwinding + //~[extern_block]^ ERROR: unwinding past a stack frame that does not allow unwinding } diff --git a/src/tools/miri/tests/fail/stacked_borrows/notunpin_dereferenceable_fakeread.rs b/src/tools/miri/tests/fail/stacked_borrows/notunpin_dereferenceable_fakeread.rs deleted file mode 100644 index d660921bfe6..00000000000 --- a/src/tools/miri/tests/fail/stacked_borrows/notunpin_dereferenceable_fakeread.rs +++ /dev/null @@ -1,17 +0,0 @@ -//! Reborrowing a `&mut !Unpin` must still act like a (fake) read. -use std::marker::PhantomPinned; - -struct NotUnpin(i32, PhantomPinned); - -fn main() { - unsafe { - let mut x = NotUnpin(0, PhantomPinned); - // Mutable borrow of `Unpin` field (with lifetime laundering) - let fieldref = &mut *(&mut x.0 as *mut i32); - // Mutable reborrow of the entire `x`, which is `!Unpin` but should - // still count as a read since we would add `dereferenceable`. - let _xref = &mut x; - // That read should have invalidated `fieldref`. - *fieldref = 0; //~ ERROR: /write access .* tag does not exist in the borrow stack/ - } -} diff --git a/src/tools/miri/tests/fail/stacked_borrows/notunpin_dereferenceable_fakeread.stderr b/src/tools/miri/tests/fail/stacked_borrows/notunpin_dereferenceable_fakeread.stderr deleted file mode 100644 index 3ef8a8e0e9c..00000000000 --- a/src/tools/miri/tests/fail/stacked_borrows/notunpin_dereferenceable_fakeread.stderr +++ /dev/null @@ -1,28 +0,0 @@ -error: Undefined Behavior: attempting a write access using <TAG> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location - --> $DIR/notunpin_dereferenceable_fakeread.rs:LL:CC - | -LL | *fieldref = 0; - | ^^^^^^^^^^^^^ - | | - | attempting a write access using <TAG> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location - | this error occurs as part of an access at ALLOC[0x0..0x4] - | - = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental - = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information -help: <TAG> was created by a Unique retag at offsets [0x0..0x4] - --> $DIR/notunpin_dereferenceable_fakeread.rs:LL:CC - | -LL | let fieldref = &mut *(&mut x.0 as *mut i32); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -help: <TAG> was later invalidated at offsets [0x0..0x4] by a SharedReadWrite retag - --> $DIR/notunpin_dereferenceable_fakeread.rs:LL:CC - | -LL | let _xref = &mut x; - | ^^^^^^ - = note: BACKTRACE: - = note: inside `main` at $DIR/notunpin_dereferenceable_fakeread.rs:LL:CC - -note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace - -error: aborting due to previous error - diff --git a/src/tools/miri/tests/many-seeds/scoped-thread-leak.rs b/src/tools/miri/tests/many-seeds/scoped-thread-leak.rs new file mode 100644 index 00000000000..f28e43696f7 --- /dev/null +++ b/src/tools/miri/tests/many-seeds/scoped-thread-leak.rs @@ -0,0 +1,8 @@ +//! Regression test for https://github.com/rust-lang/miri/issues/2629 +use std::thread; + +fn main() { + thread::scope(|s| { + s.spawn(|| {}); + }); +} diff --git a/src/tools/miri/tests/pass/concurrency/scope.rs b/src/tools/miri/tests/pass/concurrency/scope.rs new file mode 100644 index 00000000000..ce5d17f5f2d --- /dev/null +++ b/src/tools/miri/tests/pass/concurrency/scope.rs @@ -0,0 +1,24 @@ +use std::thread; + +fn main() { + let mut a = vec![1, 2, 3]; + let mut x = 0; + + thread::scope(|s| { + s.spawn(|| { + // We can borrow `a` here. + let _s = format!("hello from the first scoped thread: {a:?}"); + }); + s.spawn(|| { + let _s = format!("hello from the second scoped thread"); + // We can even mutably borrow `x` here, + // because no other threads are using it. + x += a[0] + a[2]; + }); + let _s = format!("hello from the main thread"); + }); + + // After the scope, we can modify and access our variables again: + a.push(4); + assert_eq!(x, a.len()); +} diff --git a/src/tools/miri/tests/pass/stacked-borrows/future-self-referential.rs b/src/tools/miri/tests/pass/stacked-borrows/future-self-referential.rs new file mode 100644 index 00000000000..3ba21552fd3 --- /dev/null +++ b/src/tools/miri/tests/pass/stacked-borrows/future-self-referential.rs @@ -0,0 +1,102 @@ +#![feature(pin_macro)] + +use std::future::*; +use std::marker::PhantomPinned; +use std::pin::*; +use std::ptr; +use std::task::*; + +struct Delay { + delay: usize, +} + +impl Delay { + fn new(delay: usize) -> Self { + Delay { delay } + } +} + +impl Future for Delay { + type Output = (); + fn poll(mut self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<()> { + if self.delay > 0 { + self.delay -= 1; + Poll::Pending + } else { + Poll::Ready(()) + } + } +} + +async fn do_stuff() { + (&mut Delay::new(1)).await; +} + +// Same thing implemented by hand +struct DoStuff { + state: usize, + delay: Delay, + delay_ref: *mut Delay, + _marker: PhantomPinned, +} + +impl DoStuff { + fn new() -> Self { + DoStuff { + state: 0, + delay: Delay::new(1), + delay_ref: ptr::null_mut(), + _marker: PhantomPinned, + } + } +} + +impl Future for DoStuff { + type Output = (); + fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<()> { + unsafe { + let this = self.get_unchecked_mut(); + match this.state { + 0 => { + // Set up self-ref. + this.delay_ref = &mut this.delay; + // Move to next state. + this.state = 1; + Poll::Pending + } + 1 => { + let delay = &mut *this.delay_ref; + Pin::new_unchecked(delay).poll(cx) + } + _ => unreachable!(), + } + } + } +} + +fn run_fut<T>(fut: impl Future<Output = T>) -> T { + use std::sync::Arc; + + struct MyWaker; + impl Wake for MyWaker { + fn wake(self: Arc<Self>) { + unimplemented!() + } + } + + let waker = Waker::from(Arc::new(MyWaker)); + let mut context = Context::from_waker(&waker); + + let mut pinned = pin!(fut); + loop { + match pinned.as_mut().poll(&mut context) { + Poll::Pending => continue, + Poll::Ready(v) => return v, + } + } +} + +fn main() { + run_fut(do_stuff()); + run_fut(DoStuff::new()); +} diff --git a/src/tools/rustfmt/src/closures.rs b/src/tools/rustfmt/src/closures.rs index 423c3a997f5..244d4427c56 100644 --- a/src/tools/rustfmt/src/closures.rs +++ b/src/tools/rustfmt/src/closures.rs @@ -335,6 +335,7 @@ pub(crate) fn rewrite_last_closure( ref fn_decl, ref body, fn_decl_span: _, + fn_arg_span: _, } = **closure; let body = match body.kind { ast::ExprKind::Block(ref block, _) diff --git a/src/tools/rustfmt/src/imports.rs b/src/tools/rustfmt/src/imports.rs index b6530c69243..d9dc8d004af 100644 --- a/src/tools/rustfmt/src/imports.rs +++ b/src/tools/rustfmt/src/imports.rs @@ -490,7 +490,7 @@ impl UseTree { ); result.path.push(UseSegment { kind, version }); } - UseTreeKind::Simple(ref rename, ..) => { + UseTreeKind::Simple(ref rename) => { // If the path has leading double colons and is composed of only 2 segments, then we // bypass the call to path_to_imported_ident which would get only the ident and // lose the path root, e.g., `that` in `::that`. diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs index a7f40167284..ff7a219d9bd 100644 --- a/src/tools/tidy/src/deps.rs +++ b/src/tools/tidy/src/deps.rs @@ -31,23 +31,25 @@ const LICENSES: &[&str] = &[ /// tooling. It is _crucial_ that no exception crates be dependencies /// of the Rust runtime (std/test). const EXCEPTIONS: &[(&str, &str)] = &[ - ("mdbook", "MPL-2.0"), // mdbook - ("openssl", "Apache-2.0"), // cargo, mdbook - ("colored", "MPL-2.0"), // rustfmt - ("ryu", "Apache-2.0 OR BSL-1.0"), // cargo/... (because of serde) - ("bytesize", "Apache-2.0"), // cargo - ("im-rc", "MPL-2.0+"), // cargo - ("sized-chunks", "MPL-2.0+"), // cargo via im-rc - ("bitmaps", "MPL-2.0+"), // cargo via im-rc - ("instant", "BSD-3-Clause"), // rustc_driver/tracing-subscriber/parking_lot - ("snap", "BSD-3-Clause"), // rustc + ("ar_archive_writer", "Apache-2.0 WITH LLVM-exception"), // rustc + ("mdbook", "MPL-2.0"), // mdbook + ("openssl", "Apache-2.0"), // cargo, mdbook + ("colored", "MPL-2.0"), // rustfmt + ("ryu", "Apache-2.0 OR BSL-1.0"), // cargo/... (because of serde) + ("bytesize", "Apache-2.0"), // cargo + ("im-rc", "MPL-2.0+"), // cargo + ("sized-chunks", "MPL-2.0+"), // cargo via im-rc + ("bitmaps", "MPL-2.0+"), // cargo via im-rc + ("instant", "BSD-3-Clause"), // rustc_driver/tracing-subscriber/parking_lot + ("snap", "BSD-3-Clause"), // rustc ("fluent-langneg", "Apache-2.0"), // rustc (fluent translations) - ("self_cell", "Apache-2.0"), // rustc (fluent translations) + ("self_cell", "Apache-2.0"), // rustc (fluent translations) // FIXME: this dependency violates the documentation comment above: ("fortanix-sgx-abi", "MPL-2.0"), // libstd but only for `sgx` target ("dunce", "CC0-1.0"), // cargo (dev dependency) ("similar", "Apache-2.0"), // cargo (dev dependency) ("normalize-line-endings", "Apache-2.0"), // cargo (dev dependency) + ("dissimilar", "Apache-2.0"), // rustdoc, rustc_lexer (few tests) via expect-test, (dev deps) ]; const EXCEPTIONS_CRANELIFT: &[(&str, &str)] = &[ @@ -86,6 +88,7 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[ "aho-corasick", "annotate-snippets", "ansi_term", + "ar_archive_writer", "arrayvec", "atty", "autocfg", @@ -110,9 +113,9 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[ "cstr", "datafrog", "derive_more", - "difference", "digest", "displaydoc", + "dissimilar", "dlmalloc", "either", "ena", @@ -276,7 +279,6 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[ const PERMITTED_CRANELIFT_DEPENDENCIES: &[&str] = &[ "ahash", "anyhow", - "ar", "arrayvec", "autocfg", "bumpalo", |