diff options
355 files changed, 4268 insertions, 2699 deletions
diff --git a/Cargo.lock b/Cargo.lock index 8135f56e8de..1cff2f22f4f 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1948,6 +1948,17 @@ dependencies = [ ] [[package]] +name = "io-uring" +version = "0.7.8" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "b86e202f00093dcba4275d4636b93ef9dd75d025ae560d2521b45ea28ab49013" +dependencies = [ + "bitflags", + "cfg-if", + "libc", +] + +[[package]] name = "ipc-channel" version = "0.19.0" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -2058,9 +2069,9 @@ dependencies = [ [[package]] name = "jsonpath-rust" -version = "1.0.2" +version = "1.0.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5b37465feaf9d41f74df7da98c6c1c31ca8ea06d11b5bf7869c8f1ccc51a793f" +checksum = "7d057f8fd19e20c3f14d3663983397155739b6bc1148dc5cd4c4a1a5b3130eb0" dependencies = [ "pest", "pest_derive", @@ -2117,9 +2128,9 @@ dependencies = [ [[package]] name = "libffi" -version = "4.1.0" +version = "4.1.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ebfd30a67b482a08116e753d0656cb626548cf4242543e5cc005be7639d99838" +checksum = "e7681c6fab541f799a829e44a445a0666cf8d8a6cfebf89419e6aed52c604e87" dependencies = [ "libc", "libffi-sys", @@ -2127,9 +2138,9 @@ dependencies = [ [[package]] name = "libffi-sys" -version = "3.3.1" +version = "3.3.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f003aa318c9f0ee69eb0ada7c78f5c9d2fedd2ceb274173b5c7ff475eee584a3" +checksum = "7b0d828d367b4450ed08e7d510dc46636cd660055f50d67ac943bfe788767c29" dependencies = [ "cc", ] @@ -5463,13 +5474,17 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20" [[package]] name = "tokio" -version = "1.45.1" +version = "1.46.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "75ef51a33ef1da925cea3e4eb122833cb377c61439ca401b770f54902b806779" +checksum = "0cc3a2344dafbe23a245241fe8b09735b521110d30fcefbbd5feb1797ca35d17" dependencies = [ "backtrace", "bytes", + "io-uring", + "libc", + "mio", "pin-project-lite", + "slab", ] [[package]] @@ -5995,9 +6010,9 @@ dependencies = [ [[package]] name = "wasm-component-ld" -version = "0.5.14" +version = "0.5.15" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b015ec93764aa5517bc8b839efa9941b90be8ce680b1134f8224644ba1e48e3f" +checksum = "6d95124e34fee1316222e03b9bbf41af186ecbae2c8b79f8debe6e21b3ff60c5" dependencies = [ "anyhow", "clap", diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 0df8921c9b7..a438545c76f 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -527,8 +527,7 @@ impl Size { /// not a multiple of 8. pub fn from_bits(bits: impl TryInto<u64>) -> Size { let bits = bits.try_into().ok().unwrap(); - // Avoid potential overflow from `bits + 7`. - Size { raw: bits / 8 + ((bits % 8) + 7) / 8 } + Size { raw: bits.div_ceil(8) } } #[inline] diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs index 5dd6882b025..f8ecff69a76 100644 --- a/compiler/rustc_ast/src/visit.rs +++ b/compiler/rustc_ast/src/visit.rs @@ -1202,9 +1202,10 @@ macro_rules! common_visitor_and_walkers { let TyPat { id, kind, span, tokens: _ } = tp; try_visit!(visit_id(vis, id)); match kind { - TyPatKind::Range(start, end, _include_end) => { + TyPatKind::Range(start, end, Spanned { span, node: _include_end }) => { visit_opt!(vis, visit_anon_const, start); visit_opt!(vis, visit_anon_const, end); + try_visit!(visit_span(vis, span)); } TyPatKind::Or(variants) => walk_list!(vis, visit_ty_pat, variants), TyPatKind::Err(_) => {} @@ -1523,16 +1524,26 @@ macro_rules! common_visitor_and_walkers { } pub fn walk_inline_asm<$($lt,)? V: $Visitor$(<$lt>)?>(vis: &mut V, asm: &$($lt)? $($mut)? InlineAsm) -> V::Result { - // FIXME: Visit spans inside all this currently ignored stuff. let InlineAsm { asm_macro: _, - template: _, - template_strs: _, + template, + template_strs, operands, - clobber_abis: _, + clobber_abis, options: _, - line_spans: _, + line_spans, } = asm; + for piece in template { + match piece { + InlineAsmTemplatePiece::String(_str) => {} + InlineAsmTemplatePiece::Placeholder { operand_idx: _, modifier: _, span } => { + try_visit!(visit_span(vis, span)); + } + } + } + for (_s1, _s2, span) in template_strs { + try_visit!(visit_span(vis, span)); + } for (op, span) in operands { match op { InlineAsmOperand::In { expr, reg: _ } @@ -1553,6 +1564,12 @@ macro_rules! common_visitor_and_walkers { } try_visit!(visit_span(vis, span)); } + for (_s1, span) in clobber_abis { + try_visit!(visit_span(vis, span)) + } + for span in line_spans { + try_visit!(visit_span(vis, span)) + } V::Result::output() } @@ -1565,9 +1582,9 @@ macro_rules! common_visitor_and_walkers { vis.visit_path(path) } - // FIXME: visit the template exhaustively. pub fn walk_format_args<$($lt,)? V: $Visitor$(<$lt>)?>(vis: &mut V, fmt: &$($lt)? $($mut)? FormatArgs) -> V::Result { - let FormatArgs { span, template: _, arguments, uncooked_fmt_str: _, is_source_literal: _ } = fmt; + let FormatArgs { span, template, arguments, uncooked_fmt_str: _, is_source_literal: _ } = fmt; + let args = $(${ignore($mut)} arguments.all_args_mut())? $(${ignore($lt)} arguments.all_args())? ; for FormatArgument { kind, expr } in args { match kind { @@ -1578,9 +1595,58 @@ macro_rules! common_visitor_and_walkers { } try_visit!(vis.visit_expr(expr)); } + for piece in template { + match piece { + FormatArgsPiece::Literal(_symbol) => {} + FormatArgsPiece::Placeholder(placeholder) => try_visit!(walk_format_placeholder(vis, placeholder)), + } + } visit_span(vis, span) } + fn walk_format_placeholder<$($lt,)? V: $Visitor$(<$lt>)?>( + vis: &mut V, + placeholder: &$($lt)? $($mut)? FormatPlaceholder, + ) -> V::Result { + let FormatPlaceholder { argument, span, format_options, format_trait: _ } = placeholder; + if let Some(span) = span { + try_visit!(visit_span(vis, span)); + } + let FormatArgPosition { span, index: _, kind: _ } = argument; + if let Some(span) = span { + try_visit!(visit_span(vis, span)); + } + let FormatOptions { + width, + precision, + alignment: _, + fill: _, + sign: _, + alternate: _, + zero_pad: _, + debug_hex: _, + } = format_options; + match width { + None => {} + Some(FormatCount::Literal(_)) => {} + Some(FormatCount::Argument(FormatArgPosition { span, index: _, kind: _ })) => { + if let Some(span) = span { + try_visit!(visit_span(vis, span)); + } + } + } + match precision { + None => {} + Some(FormatCount::Literal(_)) => {} + Some(FormatCount::Argument(FormatArgPosition { span, index: _, kind: _ })) => { + if let Some(span) = span { + try_visit!(visit_span(vis, span)); + } + } + } + V::Result::output() + } + pub fn walk_expr<$($lt,)? V: $Visitor$(<$lt>)?>(vis: &mut V, expression: &$($lt)? $($mut)? Expr) -> V::Result { let Expr { id, kind, span, attrs, tokens: _ } = expression; try_visit!(visit_id(vis, id)); @@ -1601,7 +1667,7 @@ macro_rules! common_visitor_and_walkers { try_visit!(visit_expr_fields(vis, fields)); match rest { StructRest::Base(expr) => try_visit!(vis.visit_expr(expr)), - StructRest::Rest(_span) => {} + StructRest::Rest(span) => try_visit!(visit_span(vis, span)), StructRest::None => {} } } @@ -1688,7 +1754,8 @@ macro_rules! common_visitor_and_walkers { visit_opt!(vis, visit_label, opt_label); try_visit!(vis.visit_block(block)); } - ExprKind::Gen(_capt, body, _kind, decl_span) => { + ExprKind::Gen(capture_clause, body, _kind, decl_span) => { + try_visit!(vis.visit_capture_by(capture_clause)); try_visit!(vis.visit_block(body)); try_visit!(visit_span(vis, decl_span)); } @@ -1705,9 +1772,10 @@ macro_rules! common_visitor_and_walkers { try_visit!(vis.visit_expr(rhs)); try_visit!(visit_span(vis, span)); } - ExprKind::AssignOp(_op, left_expression, right_expression) => { + ExprKind::AssignOp(Spanned { span, node: _ }, left_expression, right_expression) => { try_visit!(vis.visit_expr(left_expression)); try_visit!(vis.visit_expr(right_expression)); + try_visit!(visit_span(vis, span)); } ExprKind::Field(subexpression, ident) => { try_visit!(vis.visit_expr(subexpression)); diff --git a/compiler/rustc_attr_data_structures/src/attributes.rs b/compiler/rustc_attr_data_structures/src/attributes.rs index b5934f4e36e..ba62be676d4 100644 --- a/compiler/rustc_attr_data_structures/src/attributes.rs +++ b/compiler/rustc_attr_data_structures/src/attributes.rs @@ -67,8 +67,6 @@ pub enum ReprAttr { ReprSimd, ReprTransparent, ReprAlign(Align), - // this one is just so we can emit a lint for it - ReprEmpty, } pub use ReprAttr::*; @@ -250,6 +248,13 @@ pub enum AttributeKind { span: Span, }, + /// Represents `#[ignore]` + Ignore { + span: Span, + /// ignore can optionally have a reason: `#[ignore = "reason this is ignored"]` + reason: Option<Symbol>, + }, + /// Represents `#[inline]` and `#[rustc_force_inline]`. Inline(InlineAttr, Span), @@ -297,7 +302,7 @@ pub enum AttributeKind { PubTransparent(Span), /// Represents [`#[repr]`](https://doc.rust-lang.org/stable/reference/type-layout.html#representations). - Repr(ThinVec<(ReprAttr, Span)>), + Repr { reprs: ThinVec<(ReprAttr, Span)>, first_span: Span }, /// Represents `#[rustc_layout_scalar_valid_range_end]`. RustcLayoutScalarValidRangeEnd(Box<u128>, Span), diff --git a/compiler/rustc_attr_data_structures/src/encode_cross_crate.rs b/compiler/rustc_attr_data_structures/src/encode_cross_crate.rs index 02e95ddcb6f..b109ebbf47b 100644 --- a/compiler/rustc_attr_data_structures/src/encode_cross_crate.rs +++ b/compiler/rustc_attr_data_structures/src/encode_cross_crate.rs @@ -26,6 +26,7 @@ impl AttributeKind { Deprecation { .. } => Yes, DocComment { .. } => Yes, ExportName { .. } => Yes, + Ignore { .. } => No, Inline(..) => No, LinkName { .. } => Yes, LinkSection { .. } => No, @@ -40,7 +41,7 @@ impl AttributeKind { Optimize(..) => No, PassByValue(..) => Yes, PubTransparent(..) => Yes, - Repr(..) => No, + Repr { .. } => No, RustcLayoutScalarValidRangeEnd(..) => Yes, RustcLayoutScalarValidRangeStart(..) => Yes, RustcObjectLifetimeDefault => No, diff --git a/compiler/rustc_attr_data_structures/src/lints.rs b/compiler/rustc_attr_data_structures/src/lints.rs index e34c54c6d32..60ca4d43ce9 100644 --- a/compiler/rustc_attr_data_structures/src/lints.rs +++ b/compiler/rustc_attr_data_structures/src/lints.rs @@ -12,4 +12,5 @@ pub struct AttributeLint<Id> { pub enum AttributeLintKind { UnusedDuplicate { this: Span, other: Span, warning: bool }, IllFormedAttributeInput { suggestions: Vec<String> }, + EmptyAttribute { first_span: Span }, } diff --git a/compiler/rustc_attr_parsing/messages.ftl b/compiler/rustc_attr_parsing/messages.ftl index 9ad46a83f50..8a709ea5d20 100644 --- a/compiler/rustc_attr_parsing/messages.ftl +++ b/compiler/rustc_attr_parsing/messages.ftl @@ -6,6 +6,10 @@ attr_parsing_deprecated_item_suggestion = .help = add `#![feature(deprecated_suggestion)]` to the crate root .note = see #94785 for more details +attr_parsing_empty_attribute = + unused attribute + .suggestion = remove this attribute + attr_parsing_empty_confusables = expected at least one confusable name attr_parsing_expected_one_cfg_pattern = diff --git a/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs b/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs index 13f560dff38..cb3956d46a0 100644 --- a/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs +++ b/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs @@ -298,6 +298,10 @@ impl<S: Stage> CombineAttributeParser<S> for TargetFeatureParser { cx.expected_list(cx.attr_span); return features; }; + if list.is_empty() { + cx.warn_empty_attribute(cx.attr_span); + return features; + } for item in list.mixed() { let Some(name_value) = item.meta_item() else { cx.expected_name_value(item.span(), Some(sym::enable)); diff --git a/compiler/rustc_attr_parsing/src/attributes/mod.rs b/compiler/rustc_attr_parsing/src/attributes/mod.rs index f5ac3890a46..55fbb825466 100644 --- a/compiler/rustc_attr_parsing/src/attributes/mod.rs +++ b/compiler/rustc_attr_parsing/src/attributes/mod.rs @@ -41,6 +41,7 @@ pub(crate) mod repr; pub(crate) mod rustc_internal; pub(crate) mod semantics; pub(crate) mod stability; +pub(crate) mod test_attrs; pub(crate) mod traits; pub(crate) mod transparency; pub(crate) mod util; diff --git a/compiler/rustc_attr_parsing/src/attributes/repr.rs b/compiler/rustc_attr_parsing/src/attributes/repr.rs index 1c070dc2685..6a45832ed7f 100644 --- a/compiler/rustc_attr_parsing/src/attributes/repr.rs +++ b/compiler/rustc_attr_parsing/src/attributes/repr.rs @@ -23,7 +23,8 @@ pub(crate) struct ReprParser; impl<S: Stage> CombineAttributeParser<S> for ReprParser { type Item = (ReprAttr, Span); const PATH: &[Symbol] = &[sym::repr]; - const CONVERT: ConvertFn<Self::Item> = |items, _| AttributeKind::Repr(items); + const CONVERT: ConvertFn<Self::Item> = + |items, first_span| AttributeKind::Repr { reprs: items, first_span }; // FIXME(jdonszelmann): never used const TEMPLATE: AttributeTemplate = template!(List: "C | Rust | align(...) | packed(...) | <integer type> | transparent"); @@ -40,8 +41,8 @@ impl<S: Stage> CombineAttributeParser<S> for ReprParser { }; if list.is_empty() { - // this is so validation can emit a lint - reprs.push((ReprAttr::ReprEmpty, cx.attr_span)); + cx.warn_empty_attribute(cx.attr_span); + return reprs; } for param in list.mixed() { diff --git a/compiler/rustc_attr_parsing/src/attributes/test_attrs.rs b/compiler/rustc_attr_parsing/src/attributes/test_attrs.rs new file mode 100644 index 00000000000..cea3ee52ff4 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/test_attrs.rs @@ -0,0 +1,46 @@ +use rustc_attr_data_structures::AttributeKind; +use rustc_attr_data_structures::lints::AttributeLintKind; +use rustc_feature::{AttributeTemplate, template}; +use rustc_span::{Symbol, sym}; + +use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser}; +use crate::context::{AcceptContext, Stage}; +use crate::parser::ArgParser; + +pub(crate) struct IgnoreParser; + +impl<S: Stage> SingleAttributeParser<S> for IgnoreParser { + const PATH: &[Symbol] = &[sym::ignore]; + const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepLast; + const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn; + const TEMPLATE: AttributeTemplate = template!(Word, NameValueStr: "reason"); + + fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> { + Some(AttributeKind::Ignore { + span: cx.attr_span, + reason: match args { + ArgParser::NoArgs => None, + ArgParser::NameValue(name_value) => { + let Some(str_value) = name_value.value_as_str() else { + let suggestions = <Self as SingleAttributeParser<S>>::TEMPLATE + .suggestions(false, "ignore"); + let span = cx.attr_span; + cx.emit_lint( + AttributeLintKind::IllFormedAttributeInput { suggestions }, + span, + ); + return None; + }; + Some(str_value) + } + ArgParser::List(_) => { + let suggestions = + <Self as SingleAttributeParser<S>>::TEMPLATE.suggestions(false, "ignore"); + let span = cx.attr_span; + cx.emit_lint(AttributeLintKind::IllFormedAttributeInput { suggestions }, span); + return None; + } + }, + }) + } +} diff --git a/compiler/rustc_attr_parsing/src/context.rs b/compiler/rustc_attr_parsing/src/context.rs index 265e1bb6a8c..bcd7b024a9e 100644 --- a/compiler/rustc_attr_parsing/src/context.rs +++ b/compiler/rustc_attr_parsing/src/context.rs @@ -37,6 +37,7 @@ use crate::attributes::semantics::MayDangleParser; use crate::attributes::stability::{ BodyStabilityParser, ConstStabilityIndirectParser, ConstStabilityParser, StabilityParser, }; +use crate::attributes::test_attrs::IgnoreParser; use crate::attributes::traits::SkipDuringMethodDispatchParser; use crate::attributes::transparency::TransparencyParser; use crate::attributes::{AttributeParser as _, Combine, Single, WithoutArgs}; @@ -126,6 +127,7 @@ attribute_parsers!( // tidy-alphabetical-start Single<DeprecationParser>, Single<ExportNameParser>, + Single<IgnoreParser>, Single<InlineParser>, Single<LinkNameParser>, Single<LinkSectionParser>, @@ -163,6 +165,7 @@ mod private { #[allow(private_interfaces)] pub trait Stage: Sized + 'static + Sealed { type Id: Copy; + const SHOULD_EMIT_LINTS: bool; fn parsers() -> &'static group_type!(Self); @@ -173,6 +176,7 @@ pub trait Stage: Sized + 'static + Sealed { #[allow(private_interfaces)] impl Stage for Early { type Id = NodeId; + const SHOULD_EMIT_LINTS: bool = false; fn parsers() -> &'static group_type!(Self) { &early::ATTRIBUTE_PARSERS @@ -186,6 +190,7 @@ impl Stage for Early { #[allow(private_interfaces)] impl Stage for Late { type Id = HirId; + const SHOULD_EMIT_LINTS: bool = true; fn parsers() -> &'static group_type!(Self) { &late::ATTRIBUTE_PARSERS @@ -226,6 +231,9 @@ impl<'f, 'sess: 'f, S: Stage> SharedContext<'f, 'sess, S> { /// must be delayed until after HIR is built. This method will take care of the details of /// that. pub(crate) fn emit_lint(&mut self, lint: AttributeLintKind, span: Span) { + if !S::SHOULD_EMIT_LINTS { + return; + } let id = self.target_id; (self.emit_lint)(AttributeLint { id, span, kind: lint }); } @@ -407,6 +415,10 @@ impl<'f, 'sess: 'f, S: Stage> AcceptContext<'f, 'sess, S> { }, }) } + + pub(crate) fn warn_empty_attribute(&mut self, span: Span) { + self.emit_lint(AttributeLintKind::EmptyAttribute { first_span: span }, span); + } } impl<'f, 'sess, S: Stage> Deref for AcceptContext<'f, 'sess, S> { diff --git a/compiler/rustc_attr_parsing/src/lints.rs b/compiler/rustc_attr_parsing/src/lints.rs index fee22293b47..e648ca4fdf8 100644 --- a/compiler/rustc_attr_parsing/src/lints.rs +++ b/compiler/rustc_attr_parsing/src/lints.rs @@ -28,5 +28,11 @@ pub fn emit_attribute_lint<L: LintEmitter>(lint: &AttributeLint<HirId>, lint_emi }, ); } + AttributeLintKind::EmptyAttribute { first_span } => lint_emitter.emit_node_span_lint( + rustc_session::lint::builtin::UNUSED_ATTRIBUTES, + *id, + *first_span, + session_diagnostics::EmptyAttributeList { attr_span: *first_span }, + ), } } diff --git a/compiler/rustc_attr_parsing/src/session_diagnostics.rs b/compiler/rustc_attr_parsing/src/session_diagnostics.rs index 6145f1e1d3e..28f6786f37f 100644 --- a/compiler/rustc_attr_parsing/src/session_diagnostics.rs +++ b/compiler/rustc_attr_parsing/src/session_diagnostics.rs @@ -473,6 +473,13 @@ pub(crate) struct EmptyConfusables { pub span: Span, } +#[derive(LintDiagnostic)] +#[diag(attr_parsing_empty_attribute)] +pub(crate) struct EmptyAttributeList { + #[suggestion(code = "", applicability = "machine-applicable")] + pub attr_span: Span, +} + #[derive(Diagnostic)] #[diag(attr_parsing_invalid_alignment_value, code = E0589)] pub(crate) struct InvalidAlignmentValue { diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index d1dac1c7145..040a0607db5 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -4194,7 +4194,9 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { // anything. let return_ty = sig.output(); match return_ty.skip_binder().kind() { - ty::Ref(return_region, _, _) if return_region.has_name() && !is_closure => { + ty::Ref(return_region, _, _) + if return_region.is_named(self.infcx.tcx) && !is_closure => + { // This is case 1 from above, return type is a named reference so we need to // search for relevant arguments. let mut arguments = Vec::new(); diff --git a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs index a611557dc92..b130cf8ed27 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs @@ -852,7 +852,8 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { return; }; - let lifetime = if f.has_name() { fr_name.name } else { kw::UnderscoreLifetime }; + let lifetime = + if f.is_named(self.infcx.tcx) { fr_name.name } else { kw::UnderscoreLifetime }; let arg = match param.param.pat.simple_ident() { Some(simple_ident) => format!("argument `{simple_ident}`"), diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index 1ad629ad167..edd14d155f6 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -289,7 +289,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { debug!("give_region_a_name: error_region = {:?}", error_region); match error_region.kind() { - ty::ReEarlyParam(ebr) => ebr.has_name().then(|| { + ty::ReEarlyParam(ebr) => ebr.is_named().then(|| { let def_id = tcx.generics_of(self.mir_def_id()).region_param(ebr, tcx).def_id; let span = tcx.hir_span_if_local(def_id).unwrap_or(DUMMY_SP); RegionName { name: ebr.name, source: RegionNameSource::NamedEarlyParamRegion(span) } @@ -300,16 +300,11 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { } ty::ReLateParam(late_param) => match late_param.kind { - ty::LateParamRegionKind::Named(region_def_id, name) => { + ty::LateParamRegionKind::Named(region_def_id) => { // Get the span to point to, even if we don't use the name. let span = tcx.hir_span_if_local(region_def_id).unwrap_or(DUMMY_SP); - debug!( - "bound region named: {:?}, is_named: {:?}", - name, - late_param.kind.is_named() - ); - if late_param.kind.is_named() { + if let Some(name) = late_param.kind.get_name(tcx) { // A named region that is actually named. Some(RegionName { name, @@ -369,6 +364,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { } ty::LateParamRegionKind::Anon(_) => None, + ty::LateParamRegionKind::NamedAnon(_, _) => bug!("only used for pretty printing"), }, ty::ReBound(..) @@ -899,7 +895,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { let ty::ReEarlyParam(region) = self.to_error_region(fr)?.kind() else { return None; }; - if region.has_name() { + if region.is_named() { return None; }; @@ -934,7 +930,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { let ty::ReEarlyParam(region) = self.to_error_region(fr)?.kind() else { return None; }; - if region.has_name() { + if region.is_named() { return None; }; diff --git a/compiler/rustc_borrowck/src/nll.rs b/compiler/rustc_borrowck/src/nll.rs index 1b011d73385..af450507296 100644 --- a/compiler/rustc_borrowck/src/nll.rs +++ b/compiler/rustc_borrowck/src/nll.rs @@ -232,13 +232,13 @@ pub(super) fn dump_nll_mir<'tcx>( // Also dump the region constraint graph as a graphviz file. let _: io::Result<()> = try { let mut file = create_dump_file(tcx, "regioncx.all.dot", false, "nll", &0, body)?; - regioncx.dump_graphviz_raw_constraints(&mut file)?; + regioncx.dump_graphviz_raw_constraints(tcx, &mut file)?; }; // Also dump the region constraint SCC graph as a graphviz file. let _: io::Result<()> = try { let mut file = create_dump_file(tcx, "regioncx.scc.dot", false, "nll", &0, body)?; - regioncx.dump_graphviz_scc_constraints(&mut file)?; + regioncx.dump_graphviz_scc_constraints(tcx, &mut file)?; }; } diff --git a/compiler/rustc_borrowck/src/polonius/dump.rs b/compiler/rustc_borrowck/src/polonius/dump.rs index 6a943e19208..6b13b5ad081 100644 --- a/compiler/rustc_borrowck/src/polonius/dump.rs +++ b/compiler/rustc_borrowck/src/polonius/dump.rs @@ -116,7 +116,7 @@ fn emit_polonius_dump<'tcx>( writeln!(out, "<div>")?; writeln!(out, "NLL regions")?; writeln!(out, "<pre class='mermaid'>")?; - emit_mermaid_nll_regions(regioncx, out)?; + emit_mermaid_nll_regions(tcx, regioncx, out)?; writeln!(out, "</pre>")?; writeln!(out, "</div>")?; @@ -124,7 +124,7 @@ fn emit_polonius_dump<'tcx>( writeln!(out, "<div>")?; writeln!(out, "NLL SCCs")?; writeln!(out, "<pre class='mermaid'>")?; - emit_mermaid_nll_sccs(regioncx, out)?; + emit_mermaid_nll_sccs(tcx, regioncx, out)?; writeln!(out, "</pre>")?; writeln!(out, "</div>")?; @@ -306,9 +306,10 @@ fn emit_mermaid_cfg(body: &Body<'_>, out: &mut dyn io::Write) -> io::Result<()> } /// Emits a region's label: index, universe, external name. -fn render_region( +fn render_region<'tcx>( + tcx: TyCtxt<'tcx>, region: RegionVid, - regioncx: &RegionInferenceContext<'_>, + regioncx: &RegionInferenceContext<'tcx>, out: &mut dyn io::Write, ) -> io::Result<()> { let def = regioncx.region_definition(region); @@ -318,7 +319,7 @@ fn render_region( if !universe.is_root() { write!(out, "/{universe:?}")?; } - if let Some(name) = def.external_name.and_then(|e| e.get_name()) { + if let Some(name) = def.external_name.and_then(|e| e.get_name(tcx)) { write!(out, " ({name})")?; } Ok(()) @@ -327,6 +328,7 @@ fn render_region( /// Emits a mermaid flowchart of the NLL regions and the outlives constraints between them, similar /// to the graphviz version. fn emit_mermaid_nll_regions<'tcx>( + tcx: TyCtxt<'tcx>, regioncx: &RegionInferenceContext<'tcx>, out: &mut dyn io::Write, ) -> io::Result<()> { @@ -336,7 +338,7 @@ fn emit_mermaid_nll_regions<'tcx>( // Emit the region nodes. for region in regioncx.definitions.indices() { write!(out, "{}[\"", region.as_usize())?; - render_region(region, regioncx, out)?; + render_region(tcx, region, regioncx, out)?; writeln!(out, "\"]")?; } @@ -378,6 +380,7 @@ fn emit_mermaid_nll_regions<'tcx>( /// Emits a mermaid flowchart of the NLL SCCs and the outlives constraints between them, similar /// to the graphviz version. fn emit_mermaid_nll_sccs<'tcx>( + tcx: TyCtxt<'tcx>, regioncx: &RegionInferenceContext<'tcx>, out: &mut dyn io::Write, ) -> io::Result<()> { @@ -395,7 +398,7 @@ fn emit_mermaid_nll_sccs<'tcx>( // The node label: the regions contained in the SCC. write!(out, "{scc}[\"SCC({scc}) = {{", scc = scc.as_usize())?; for (idx, ®ion) in regions.iter().enumerate() { - render_region(region, regioncx, out)?; + render_region(tcx, region, regioncx, out)?; if idx < regions.len() - 1 { write!(out, ",")?; } diff --git a/compiler/rustc_borrowck/src/polonius/legacy/location.rs b/compiler/rustc_borrowck/src/polonius/legacy/location.rs index 5f816bb9bbd..618119a6a3d 100644 --- a/compiler/rustc_borrowck/src/polonius/legacy/location.rs +++ b/compiler/rustc_borrowck/src/polonius/legacy/location.rs @@ -109,6 +109,6 @@ impl PoloniusLocationTable { impl LocationIndex { fn is_start(self) -> bool { // even indices are start points; odd indices are mid points - (self.index() % 2) == 0 + self.index().is_multiple_of(2) } } diff --git a/compiler/rustc_borrowck/src/region_infer/graphviz.rs b/compiler/rustc_borrowck/src/region_infer/graphviz.rs index 1936752b63c..a3e29982e90 100644 --- a/compiler/rustc_borrowck/src/region_infer/graphviz.rs +++ b/compiler/rustc_borrowck/src/region_infer/graphviz.rs @@ -26,11 +26,15 @@ fn render_universe(u: UniverseIndex) -> String { format!("/{:?}", u) } -fn render_region_vid(rvid: RegionVid, regioncx: &RegionInferenceContext<'_>) -> String { +fn render_region_vid<'tcx>( + tcx: TyCtxt<'tcx>, + rvid: RegionVid, + regioncx: &RegionInferenceContext<'tcx>, +) -> String { let universe_str = render_universe(regioncx.region_definition(rvid).universe); let external_name_str = if let Some(external_name) = - regioncx.region_definition(rvid).external_name.and_then(|e| e.get_name()) + regioncx.region_definition(rvid).external_name.and_then(|e| e.get_name(tcx)) { format!(" ({external_name})") } else { @@ -42,12 +46,20 @@ fn render_region_vid(rvid: RegionVid, regioncx: &RegionInferenceContext<'_>) -> impl<'tcx> RegionInferenceContext<'tcx> { /// Write out the region constraint graph. - pub(crate) fn dump_graphviz_raw_constraints(&self, mut w: &mut dyn Write) -> io::Result<()> { - dot::render(&RawConstraints { regioncx: self }, &mut w) + pub(crate) fn dump_graphviz_raw_constraints( + &self, + tcx: TyCtxt<'tcx>, + mut w: &mut dyn Write, + ) -> io::Result<()> { + dot::render(&RawConstraints { tcx, regioncx: self }, &mut w) } /// Write out the region constraint SCC graph. - pub(crate) fn dump_graphviz_scc_constraints(&self, mut w: &mut dyn Write) -> io::Result<()> { + pub(crate) fn dump_graphviz_scc_constraints( + &self, + tcx: TyCtxt<'tcx>, + mut w: &mut dyn Write, + ) -> io::Result<()> { let mut nodes_per_scc: IndexVec<ConstraintSccIndex, _> = self.constraint_sccs.all_sccs().map(|_| Vec::new()).collect(); @@ -56,11 +68,12 @@ impl<'tcx> RegionInferenceContext<'tcx> { nodes_per_scc[scc].push(region); } - dot::render(&SccConstraints { regioncx: self, nodes_per_scc }, &mut w) + dot::render(&SccConstraints { tcx, regioncx: self, nodes_per_scc }, &mut w) } } struct RawConstraints<'a, 'tcx> { + tcx: TyCtxt<'tcx>, regioncx: &'a RegionInferenceContext<'tcx>, } @@ -78,7 +91,7 @@ impl<'a, 'this, 'tcx> dot::Labeller<'this> for RawConstraints<'a, 'tcx> { Some(dot::LabelText::LabelStr(Cow::Borrowed("box"))) } fn node_label(&'this self, n: &RegionVid) -> dot::LabelText<'this> { - dot::LabelText::LabelStr(render_region_vid(*n, self.regioncx).into()) + dot::LabelText::LabelStr(render_region_vid(self.tcx, *n, self.regioncx).into()) } fn edge_label(&'this self, e: &OutlivesConstraint<'tcx>) -> dot::LabelText<'this> { dot::LabelText::LabelStr(render_outlives_constraint(e).into()) @@ -110,6 +123,7 @@ impl<'a, 'this, 'tcx> dot::GraphWalk<'this> for RawConstraints<'a, 'tcx> { } struct SccConstraints<'a, 'tcx> { + tcx: TyCtxt<'tcx>, regioncx: &'a RegionInferenceContext<'tcx>, nodes_per_scc: IndexVec<ConstraintSccIndex, Vec<RegionVid>>, } @@ -128,8 +142,10 @@ impl<'a, 'this, 'tcx> dot::Labeller<'this> for SccConstraints<'a, 'tcx> { Some(dot::LabelText::LabelStr(Cow::Borrowed("box"))) } fn node_label(&'this self, n: &ConstraintSccIndex) -> dot::LabelText<'this> { - let nodes_str = - self.nodes_per_scc[*n].iter().map(|n| render_region_vid(*n, self.regioncx)).join(", "); + let nodes_str = self.nodes_per_scc[*n] + .iter() + .map(|n| render_region_vid(self.tcx, *n, self.regioncx)) + .join(", "); dot::LabelText::LabelStr(format!("SCC({n}) = {{{nodes_str}}}", n = n.as_usize()).into()) } } diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 05bcd9f862e..f877e5eaadb 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -786,8 +786,11 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> { let region_ctxt_fn = || { let reg_info = match br.kind { ty::BoundRegionKind::Anon => sym::anon, - ty::BoundRegionKind::Named(_, name) => name, + ty::BoundRegionKind::Named(def_id) => tcx.item_name(def_id), ty::BoundRegionKind::ClosureEnv => sym::env, + ty::BoundRegionKind::NamedAnon(_) => { + bug!("only used for pretty printing") + } }; RegionCtxt::LateBound(reg_info) diff --git a/compiler/rustc_borrowck/src/type_check/relate_tys.rs b/compiler/rustc_borrowck/src/type_check/relate_tys.rs index 02a41469c97..e023300f1c2 100644 --- a/compiler/rustc_borrowck/src/type_check/relate_tys.rs +++ b/compiler/rustc_borrowck/src/type_check/relate_tys.rs @@ -7,11 +7,11 @@ use rustc_infer::infer::{InferCtxt, NllRegionVariableOrigin}; use rustc_infer::traits::Obligation; use rustc_infer::traits::solve::Goal; use rustc_middle::mir::ConstraintCategory; -use rustc_middle::span_bug; use rustc_middle::traits::ObligationCause; use rustc_middle::traits::query::NoSolution; use rustc_middle::ty::relate::combine::{super_combine_consts, super_combine_tys}; use rustc_middle::ty::{self, FnMutDelegate, Ty, TyCtxt, TypeVisitableExt}; +use rustc_middle::{bug, span_bug}; use rustc_span::{Span, Symbol, sym}; use tracing::{debug, instrument}; @@ -215,7 +215,8 @@ impl<'a, 'b, 'tcx> NllTypeRelating<'a, 'b, 'tcx> { if let Some(ex_reg_var) = reg_map.get(&br) { *ex_reg_var } else { - let ex_reg_var = self.next_existential_region_var(true, br.kind.get_name()); + let ex_reg_var = + self.next_existential_region_var(true, br.kind.get_name(infcx.infcx.tcx)); debug!(?ex_reg_var); reg_map.insert(br, ex_reg_var); @@ -263,8 +264,9 @@ impl<'a, 'b, 'tcx> NllTypeRelating<'a, 'b, 'tcx> { let reg_info = match placeholder.bound.kind { ty::BoundRegionKind::Anon => sym::anon, - ty::BoundRegionKind::Named(_, name) => name, + ty::BoundRegionKind::Named(def_id) => self.type_checker.tcx().item_name(def_id), ty::BoundRegionKind::ClosureEnv => sym::env, + ty::BoundRegionKind::NamedAnon(_) => bug!("only used for pretty printing"), }; if cfg!(debug_assertions) { diff --git a/compiler/rustc_borrowck/src/universal_regions.rs b/compiler/rustc_borrowck/src/universal_regions.rs index 846299711be..f138f265320 100644 --- a/compiler/rustc_borrowck/src/universal_regions.rs +++ b/compiler/rustc_borrowck/src/universal_regions.rs @@ -497,7 +497,7 @@ impl<'cx, 'tcx> UniversalRegionsBuilder<'cx, 'tcx> { |r| { debug!(?r); let region_vid = { - let name = r.get_name_or_anon(); + let name = r.get_name_or_anon(self.infcx.tcx); self.infcx.next_nll_region_var(FR, || RegionCtxt::LateBound(name)) }; @@ -523,7 +523,7 @@ impl<'cx, 'tcx> UniversalRegionsBuilder<'cx, 'tcx> { let kind = ty::LateParamRegionKind::from_bound(ty::BoundVar::from_usize(idx), kind); let r = ty::Region::new_late_param(self.infcx.tcx, self.mir_def.to_def_id(), kind); let region_vid = { - let name = r.get_name_or_anon(); + let name = r.get_name_or_anon(self.infcx.tcx); self.infcx.next_nll_region_var(FR, || RegionCtxt::LateBound(name)) }; @@ -861,7 +861,7 @@ impl<'tcx> BorrowckInferCtxt<'tcx> { T: TypeFoldable<TyCtxt<'tcx>>, { fold_regions(self.infcx.tcx, value, |region, _depth| { - let name = region.get_name_or_anon(); + let name = region.get_name_or_anon(self.infcx.tcx); debug!(?region, ?name); self.next_nll_region_var(origin, || RegionCtxt::Free(name)) diff --git a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs index d201ca196d6..8135f3744f8 100644 --- a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs +++ b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs @@ -485,7 +485,7 @@ impl<'a> TraitDef<'a> { Annotatable::Item(item) => { let is_packed = matches!( AttributeParser::parse_limited(cx.sess, &item.attrs, sym::repr, item.span, item.id), - Some(Attribute::Parsed(AttributeKind::Repr(r))) if r.iter().any(|(x, _)| matches!(x, ReprPacked(..))) + Some(Attribute::Parsed(AttributeKind::Repr { reprs, .. })) if reprs.iter().any(|(x, _)| matches!(x, ReprPacked(..))) ); let newitem = match &item.kind { diff --git a/compiler/rustc_builtin_macros/src/lib.rs b/compiler/rustc_builtin_macros/src/lib.rs index 0594f7e86c3..6bf590df5c9 100644 --- a/compiler/rustc_builtin_macros/src/lib.rs +++ b/compiler/rustc_builtin_macros/src/lib.rs @@ -108,6 +108,7 @@ pub fn register_builtin_macros(resolver: &mut dyn ResolverExpand) { } register_attr! { + // tidy-alphabetical-start alloc_error_handler: alloc_error_handler::expand, autodiff_forward: autodiff::expand_forward, autodiff_reverse: autodiff::expand_reverse, @@ -120,6 +121,7 @@ pub fn register_builtin_macros(resolver: &mut dyn ResolverExpand) { global_allocator: global_allocator::expand, test: test::expand_test, test_case: test::expand_test_case, + // tidy-alphabetical-end } register_derive! { diff --git a/compiler/rustc_codegen_gcc/Cargo.lock b/compiler/rustc_codegen_gcc/Cargo.lock index b20c181a8cb..7f35c1a80bd 100644 --- a/compiler/rustc_codegen_gcc/Cargo.lock +++ b/compiler/rustc_codegen_gcc/Cargo.lock @@ -144,6 +144,15 @@ dependencies = [ ] [[package]] +name = "object" +version = "0.37.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "03fd943161069e1768b4b3d050890ba48730e590f57e56d4aa04e7e090e61b4a" +dependencies = [ + "memchr", +] + +[[package]] name = "once_cell" version = "1.20.2" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -179,6 +188,7 @@ dependencies = [ "boml", "gccjit", "lang_tester", + "object", "tempfile", ] diff --git a/compiler/rustc_codegen_gcc/Cargo.toml b/compiler/rustc_codegen_gcc/Cargo.toml index c284e3f060b..193348d1ef6 100644 --- a/compiler/rustc_codegen_gcc/Cargo.toml +++ b/compiler/rustc_codegen_gcc/Cargo.toml @@ -22,6 +22,8 @@ master = ["gccjit/master"] default = ["master"] [dependencies] +object = { version = "0.37.0", default-features = false, features = ["std", "read"] } +tempfile = "3.20" gccjit = "2.7" #gccjit = { git = "https://github.com/rust-lang/gccjit.rs" } @@ -31,7 +33,6 @@ gccjit = "2.7" [dev-dependencies] boml = "0.3.1" lang_tester = "0.8.0" -tempfile = "3.20" [profile.dev] # By compiling dependencies with optimizations, performing tests gets much faster. diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs index a912678ef2a..1a6eec0ed0b 100644 --- a/compiler/rustc_codegen_gcc/src/lib.rs +++ b/compiler/rustc_codegen_gcc/src/lib.rs @@ -26,12 +26,9 @@ #![deny(clippy::pattern_type_mismatch)] #![allow(clippy::needless_lifetimes, clippy::uninlined_format_args)] -// Some "regular" crates we want to share with rustc -extern crate object; +// These crates are pulled from the sysroot because they are part of +// rustc's public API, so we need to ensure version compatibility. extern crate smallvec; -// FIXME(antoyo): clippy bug: remove the #[allow] when it's fixed. -#[allow(unused_extern_crates)] -extern crate tempfile; #[macro_use] extern crate tracing; diff --git a/compiler/rustc_codegen_llvm/src/abi.rs b/compiler/rustc_codegen_llvm/src/abi.rs index 4b07c8aef91..009e7e2487b 100644 --- a/compiler/rustc_codegen_llvm/src/abi.rs +++ b/compiler/rustc_codegen_llvm/src/abi.rs @@ -146,7 +146,7 @@ impl LlvmType for CastTarget { "total size {:?} cannot be divided into units of zero size", self.rest.total ); - if self.rest.total.bytes() % self.rest.unit.size.bytes() != 0 { + if !self.rest.total.bytes().is_multiple_of(self.rest.unit.size.bytes()) { assert_eq!(self.rest.unit.kind, RegKind::Integer, "only int regs can be split"); } self.rest.total.bytes().div_ceil(self.rest.unit.size.bytes()) diff --git a/compiler/rustc_codegen_llvm/src/va_arg.rs b/compiler/rustc_codegen_llvm/src/va_arg.rs index 4fe4c9bcbf2..486dc894a4e 100644 --- a/compiler/rustc_codegen_llvm/src/va_arg.rs +++ b/compiler/rustc_codegen_llvm/src/va_arg.rs @@ -172,10 +172,10 @@ fn emit_aapcs_va_arg<'ll, 'tcx>( let gr_type = target_ty.is_any_ptr() || target_ty.is_integral(); let (reg_off, reg_top, slot_size) = if gr_type { - let nreg = (layout.size.bytes() + 7) / 8; + let nreg = layout.size.bytes().div_ceil(8); (gr_offs, gr_top, nreg * 8) } else { - let nreg = (layout.size.bytes() + 15) / 16; + let nreg = layout.size.bytes().div_ceil(16); (vr_offs, vr_top, nreg * 16) }; diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index 2713ec07f97..be63bb8ac59 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -109,7 +109,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { if let hir::Attribute::Parsed(p) = attr { match p { - AttributeKind::Repr(reprs) => { + AttributeKind::Repr { reprs, first_span: _ } => { codegen_fn_attrs.alignment = reprs .iter() .filter_map( diff --git a/compiler/rustc_codegen_ssa/src/mir/operand.rs b/compiler/rustc_codegen_ssa/src/mir/operand.rs index 88a8d655d97..2896dfd5463 100644 --- a/compiler/rustc_codegen_ssa/src/mir/operand.rs +++ b/compiler/rustc_codegen_ssa/src/mir/operand.rs @@ -1,5 +1,6 @@ use std::fmt; +use itertools::Either; use rustc_abi as abi; use rustc_abi::{ Align, BackendRepr, FIRST_VARIANT, FieldIdx, Primitive, Size, TagEncoding, VariantIdx, Variants, @@ -13,7 +14,7 @@ use rustc_session::config::OptLevel; use tracing::{debug, instrument}; use super::place::{PlaceRef, PlaceValue}; -use super::rvalue::transmute_immediate; +use super::rvalue::transmute_scalar; use super::{FunctionCx, LocalRef}; use crate::common::IntPredicate; use crate::traits::*; @@ -346,14 +347,16 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> { let val = if field.is_zst() { OperandValue::ZeroSized + } else if let BackendRepr::SimdVector { .. } = self.layout.backend_repr { + // codegen_transmute_operand doesn't support SIMD, but since the previous + // check handled ZSTs, the only possible field access into something SIMD + // is to the `non_1zst_field` that's the same SIMD. (Other things, even + // just padding, would change the wrapper's representation type.) + assert_eq!(field.size, self.layout.size); + self.val } else if field.size == self.layout.size { assert_eq!(offset.bytes(), 0); - fx.codegen_transmute_operand(bx, *self, field).unwrap_or_else(|| { - bug!( - "Expected `codegen_transmute_operand` to handle equal-size \ - field {i:?} projection from {self:?} to {field:?}" - ) - }) + fx.codegen_transmute_operand(bx, *self, field) } else { let (in_scalar, imm) = match (self.val, self.layout.backend_repr) { // Extract a scalar component from a pair. @@ -565,12 +568,12 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> { /// Creates an incomplete operand containing the [`abi::Scalar`]s expected based /// on the `layout` passed. This is for use with [`OperandRef::insert_field`] - /// later to set the necessary immediate(s). + /// later to set the necessary immediate(s), one-by-one converting all the `Right` to `Left`. /// /// Returns `None` for `layout`s which cannot be built this way. pub(crate) fn builder( layout: TyAndLayout<'tcx>, - ) -> Option<OperandRef<'tcx, Result<V, abi::Scalar>>> { + ) -> Option<OperandRef<'tcx, Either<V, abi::Scalar>>> { // Uninhabited types are weird, because for example `Result<!, !>` // shows up as `FieldsShape::Primitive` and we need to be able to write // a field into `(u32, !)`. We'll do that in an `alloca` instead. @@ -580,15 +583,15 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> { let val = match layout.backend_repr { BackendRepr::Memory { .. } if layout.is_zst() => OperandValue::ZeroSized, - BackendRepr::Scalar(s) => OperandValue::Immediate(Err(s)), - BackendRepr::ScalarPair(a, b) => OperandValue::Pair(Err(a), Err(b)), + BackendRepr::Scalar(s) => OperandValue::Immediate(Either::Right(s)), + BackendRepr::ScalarPair(a, b) => OperandValue::Pair(Either::Right(a), Either::Right(b)), BackendRepr::Memory { .. } | BackendRepr::SimdVector { .. } => return None, }; Some(OperandRef { val, layout }) } } -impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, Result<V, abi::Scalar>> { +impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, Either<V, abi::Scalar>> { pub(crate) fn insert_field<Bx: BuilderMethods<'a, 'tcx, Value = V>>( &mut self, bx: &mut Bx, @@ -612,31 +615,29 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, Result<V, abi::Scalar>> { (field_layout.is_zst(), field_offset == Size::ZERO) }; - let mut update = |tgt: &mut Result<V, abi::Scalar>, src, from_scalar| { - let from_bty = bx.cx().type_from_scalar(from_scalar); - let to_scalar = tgt.unwrap_err(); - let to_bty = bx.cx().type_from_scalar(to_scalar); - let imm = transmute_immediate(bx, src, from_scalar, from_bty, to_scalar, to_bty); - *tgt = Ok(imm); + let mut update = |tgt: &mut Either<V, abi::Scalar>, src, from_scalar| { + let to_scalar = tgt.unwrap_right(); + let imm = transmute_scalar(bx, src, from_scalar, to_scalar); + *tgt = Either::Left(imm); }; match (operand.val, operand.layout.backend_repr) { (OperandValue::ZeroSized, _) if expect_zst => {} (OperandValue::Immediate(v), BackendRepr::Scalar(from_scalar)) => match &mut self.val { - OperandValue::Immediate(val @ Err(_)) if is_zero_offset => { + OperandValue::Immediate(val @ Either::Right(_)) if is_zero_offset => { update(val, v, from_scalar); } - OperandValue::Pair(fst @ Err(_), _) if is_zero_offset => { + OperandValue::Pair(fst @ Either::Right(_), _) if is_zero_offset => { update(fst, v, from_scalar); } - OperandValue::Pair(_, snd @ Err(_)) if !is_zero_offset => { + OperandValue::Pair(_, snd @ Either::Right(_)) if !is_zero_offset => { update(snd, v, from_scalar); } _ => bug!("Tried to insert {operand:?} into {v:?}.{f:?} of {self:?}"), }, (OperandValue::Pair(a, b), BackendRepr::ScalarPair(from_sa, from_sb)) => { match &mut self.val { - OperandValue::Pair(fst @ Err(_), snd @ Err(_)) => { + OperandValue::Pair(fst @ Either::Right(_), snd @ Either::Right(_)) => { update(fst, a, from_sa); update(snd, b, from_sb); } @@ -656,21 +657,21 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, Result<V, abi::Scalar>> { let field_offset = self.layout.fields.offset(f.as_usize()); let is_zero_offset = field_offset == Size::ZERO; match &mut self.val { - OperandValue::Immediate(val @ Err(_)) if is_zero_offset => { - *val = Ok(imm); + OperandValue::Immediate(val @ Either::Right(_)) if is_zero_offset => { + *val = Either::Left(imm); } - OperandValue::Pair(fst @ Err(_), _) if is_zero_offset => { - *fst = Ok(imm); + OperandValue::Pair(fst @ Either::Right(_), _) if is_zero_offset => { + *fst = Either::Left(imm); } - OperandValue::Pair(_, snd @ Err(_)) if !is_zero_offset => { - *snd = Ok(imm); + OperandValue::Pair(_, snd @ Either::Right(_)) if !is_zero_offset => { + *snd = Either::Left(imm); } _ => bug!("Tried to insert {imm:?} into field {f:?} of {self:?}"), } } /// After having set all necessary fields, this converts the - /// `OperandValue<Result<V, _>>` (as obtained from [`OperandRef::builder`]) + /// `OperandValue<Either<V, _>>` (as obtained from [`OperandRef::builder`]) /// to the normal `OperandValue<V>`. /// /// ICEs if any required fields were not set. @@ -681,13 +682,13 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, Result<V, abi::Scalar>> { // payload scalar will not actually have been set, so this converts // unset scalars to corresponding `undef` values so long as the scalar // from the layout allows uninit. - let unwrap = |r: Result<V, abi::Scalar>| match r { - Ok(v) => v, - Err(s) if s.is_uninit_valid() => { + let unwrap = |r: Either<V, abi::Scalar>| match r { + Either::Left(v) => v, + Either::Right(s) if s.is_uninit_valid() => { let bty = cx.type_from_scalar(s); cx.const_undef(bty) } - Err(_) => bug!("OperandRef::build called while fields are missing {self:?}"), + Either::Right(_) => bug!("OperandRef::build called while fields are missing {self:?}"), }; let val = match val { diff --git a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs index a8f9cbbe19b..43726e93252 100644 --- a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs +++ b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs @@ -1,10 +1,8 @@ -use std::assert_matches::assert_matches; - use rustc_abi::{self as abi, FIRST_VARIANT}; use rustc_middle::ty::adjustment::PointerCoercion; use rustc_middle::ty::layout::{HasTyCtxt, HasTypingEnv, LayoutOf, TyAndLayout}; use rustc_middle::ty::{self, Instance, Ty, TyCtxt}; -use rustc_middle::{bug, mir, span_bug}; +use rustc_middle::{bug, mir}; use rustc_session::config::OptLevel; use rustc_span::{DUMMY_SP, Span}; use tracing::{debug, instrument}; @@ -12,7 +10,7 @@ use tracing::{debug, instrument}; use super::operand::{OperandRef, OperandValue}; use super::place::{PlaceRef, codegen_tag_value}; use super::{FunctionCx, LocalRef}; -use crate::common::IntPredicate; +use crate::common::{IntPredicate, TypeKind}; use crate::traits::*; use crate::{MemFlags, base}; @@ -190,6 +188,10 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { } } + /// Transmutes the `src` value to the destination type by writing it to `dst`. + /// + /// See also [`Self::codegen_transmute_operand`] for cases that can be done + /// without needing a pre-allocated place for the destination. fn codegen_transmute( &mut self, bx: &mut Bx, @@ -200,37 +202,36 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { assert!(src.layout.is_sized()); assert!(dst.layout.is_sized()); - if let Some(val) = self.codegen_transmute_operand(bx, src, dst.layout) { - val.store(bx, dst); - return; - } - - match src.val { - OperandValue::Ref(..) | OperandValue::ZeroSized => { - span_bug!( - self.mir.span, - "Operand path should have handled transmute \ - from {src:?} to place {dst:?}" - ); - } - OperandValue::Immediate(..) | OperandValue::Pair(..) => { - // When we have immediate(s), the alignment of the source is irrelevant, - // so we can store them using the destination's alignment. - src.val.store(bx, dst.val.with_type(src.layout)); - } + if src.layout.size != dst.layout.size + || src.layout.is_uninhabited() + || dst.layout.is_uninhabited() + { + // These cases are all UB to actually hit, so don't emit code for them. + // (The size mismatches are reachable via `transmute_unchecked`.) + // We can't use unreachable because that's a terminator, and we + // need something that can be in the middle of a basic block. + bx.assume(bx.cx().const_bool(false)) + } else { + // Since in this path we have a place anyway, we can store or copy to it, + // making sure we use the destination place's alignment even if the + // source would normally have a higher one. + src.val.store(bx, dst.val.with_type(src.layout)); } } - /// Attempts to transmute an `OperandValue` to another `OperandValue`. + /// Transmutes an `OperandValue` to another `OperandValue`. /// - /// Returns `None` for cases that can't work in that framework, such as for - /// `Immediate`->`Ref` that needs an `alloc` to get the location. + /// This is supported only for cases where [`Self::rvalue_creates_operand`] + /// returns `true`, and will ICE otherwise. (In particular, anything that + /// would need to `alloca` in order to return a `PlaceValue` will ICE, + /// expecting those to go via [`Self::codegen_transmute`] instead where + /// the destination place is already allocated.) pub(crate) fn codegen_transmute_operand( &mut self, bx: &mut Bx, operand: OperandRef<'tcx, Bx::Value>, cast: TyAndLayout<'tcx>, - ) -> Option<OperandValue<Bx::Value>> { + ) -> OperandValue<Bx::Value> { // Check for transmutes that are always UB. if operand.layout.size != cast.size || operand.layout.is_uninhabited() @@ -244,71 +245,34 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { // Because this transmute is UB, return something easy to generate, // since it's fine that later uses of the value are probably UB. - return Some(OperandValue::poison(bx, cast)); + return OperandValue::poison(bx, cast); } - let operand_kind = self.value_kind(operand.layout); - let cast_kind = self.value_kind(cast); - - match operand.val { - OperandValue::Ref(source_place_val) => { + match (operand.val, operand.layout.backend_repr, cast.backend_repr) { + _ if cast.is_zst() => OperandValue::ZeroSized, + (_, _, abi::BackendRepr::Memory { .. }) => { + bug!("Cannot `codegen_transmute_operand` to non-ZST memory-ABI output {cast:?}"); + } + (OperandValue::Ref(source_place_val), abi::BackendRepr::Memory { .. }, _) => { assert_eq!(source_place_val.llextra, None); - assert_matches!(operand_kind, OperandValueKind::Ref); // The existing alignment is part of `source_place_val`, // so that alignment will be used, not `cast`'s. - Some(bx.load_operand(source_place_val.with_type(cast)).val) - } - OperandValue::ZeroSized => { - let OperandValueKind::ZeroSized = operand_kind else { - bug!("Found {operand_kind:?} for operand {operand:?}"); - }; - if let OperandValueKind::ZeroSized = cast_kind { - Some(OperandValue::ZeroSized) - } else { - None - } - } - OperandValue::Immediate(imm) => { - let OperandValueKind::Immediate(from_scalar) = operand_kind else { - bug!("Found {operand_kind:?} for operand {operand:?}"); - }; - if let OperandValueKind::Immediate(to_scalar) = cast_kind - && from_scalar.size(self.cx) == to_scalar.size(self.cx) - { - let from_backend_ty = bx.backend_type(operand.layout); - let to_backend_ty = bx.backend_type(cast); - Some(OperandValue::Immediate(transmute_immediate( - bx, - imm, - from_scalar, - from_backend_ty, - to_scalar, - to_backend_ty, - ))) - } else { - None - } - } - OperandValue::Pair(imm_a, imm_b) => { - let OperandValueKind::Pair(in_a, in_b) = operand_kind else { - bug!("Found {operand_kind:?} for operand {operand:?}"); - }; - if let OperandValueKind::Pair(out_a, out_b) = cast_kind - && in_a.size(self.cx) == out_a.size(self.cx) - && in_b.size(self.cx) == out_b.size(self.cx) - { - let in_a_ibty = bx.scalar_pair_element_backend_type(operand.layout, 0, false); - let in_b_ibty = bx.scalar_pair_element_backend_type(operand.layout, 1, false); - let out_a_ibty = bx.scalar_pair_element_backend_type(cast, 0, false); - let out_b_ibty = bx.scalar_pair_element_backend_type(cast, 1, false); - Some(OperandValue::Pair( - transmute_immediate(bx, imm_a, in_a, in_a_ibty, out_a, out_a_ibty), - transmute_immediate(bx, imm_b, in_b, in_b_ibty, out_b, out_b_ibty), - )) - } else { - None - } + bx.load_operand(source_place_val.with_type(cast)).val } + ( + OperandValue::Immediate(imm), + abi::BackendRepr::Scalar(from_scalar), + abi::BackendRepr::Scalar(to_scalar), + ) => OperandValue::Immediate(transmute_scalar(bx, imm, from_scalar, to_scalar)), + ( + OperandValue::Pair(imm_a, imm_b), + abi::BackendRepr::ScalarPair(in_a, in_b), + abi::BackendRepr::ScalarPair(out_a, out_b), + ) => OperandValue::Pair( + transmute_scalar(bx, imm_a, in_a, out_a), + transmute_scalar(bx, imm_b, in_b, out_b), + ), + _ => bug!("Cannot `codegen_transmute_operand` {operand:?} to {cast:?}"), } } @@ -479,9 +443,8 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { // path as the other integer-to-X casts. | mir::CastKind::PointerWithExposedProvenance => { let imm = operand.immediate(); - let operand_kind = self.value_kind(operand.layout); - let OperandValueKind::Immediate(from_scalar) = operand_kind else { - bug!("Found {operand_kind:?} for operand {operand:?}"); + let abi::BackendRepr::Scalar(from_scalar) = operand.layout.backend_repr else { + bug!("Found non-scalar for operand {operand:?}"); }; let from_backend_ty = bx.cx().immediate_backend_type(operand.layout); @@ -491,9 +454,8 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { let val = OperandValue::Immediate(bx.cx().const_poison(to_backend_ty)); return OperandRef { val, layout: cast }; } - let cast_kind = self.value_kind(cast); - let OperandValueKind::Immediate(to_scalar) = cast_kind else { - bug!("Found {cast_kind:?} for operand {cast:?}"); + let abi::BackendRepr::Scalar(to_scalar) = cast.layout.backend_repr else { + bug!("Found non-scalar for cast {cast:?}"); }; self.cast_immediate(bx, imm, from_scalar, from_backend_ty, to_scalar, to_backend_ty) @@ -503,9 +465,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { }) } mir::CastKind::Transmute => { - self.codegen_transmute_operand(bx, operand, cast).unwrap_or_else(|| { - bug!("Unsupported transmute-as-operand of {operand:?} to {cast:?}"); - }) + self.codegen_transmute_operand(bx, operand, cast) } }; OperandRef { val, layout: cast } @@ -1011,37 +971,46 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { OperandValue::Pair(val, of) } + /// Returns `true` if the `rvalue` can be computed into an [`OperandRef`], + /// rather than needing a full `PlaceRef` for the assignment destination. + /// + /// This is used by the [`super::analyze`] code to decide which MIR locals + /// can stay as SSA values (as opposed to generating `alloca` slots for them). + /// As such, some paths here return `true` even where the specific rvalue + /// will not actually take the operand path because the result type is such + /// that it always gets an `alloca`, but where it's not worth re-checking the + /// layout in this code when the right thing will happen anyway. pub(crate) fn rvalue_creates_operand(&self, rvalue: &mir::Rvalue<'tcx>, span: Span) -> bool { match *rvalue { mir::Rvalue::Cast(mir::CastKind::Transmute, ref operand, cast_ty) => { let operand_ty = operand.ty(self.mir, self.cx.tcx()); let cast_layout = self.cx.layout_of(self.monomorphize(cast_ty)); let operand_layout = self.cx.layout_of(self.monomorphize(operand_ty)); + match (operand_layout.backend_repr, cast_layout.backend_repr) { + // When the output will be in memory anyway, just use its place + // (instead of the operand path) unless it's the trivial ZST case. + (_, abi::BackendRepr::Memory { .. }) => cast_layout.is_zst(), - match (self.value_kind(operand_layout), self.value_kind(cast_layout)) { - // Can always load from a pointer as needed - (OperandValueKind::Ref, _) => true, - - // ZST-to-ZST is the easiest thing ever - (OperandValueKind::ZeroSized, OperandValueKind::ZeroSized) => true, - - // But if only one of them is a ZST the sizes can't match - (OperandValueKind::ZeroSized, _) | (_, OperandValueKind::ZeroSized) => false, - - // Need to generate an `alloc` to get a pointer from an immediate - (OperandValueKind::Immediate(..) | OperandValueKind::Pair(..), OperandValueKind::Ref) => false, + // Otherwise (for a non-memory output) if the input is memory + // then we can just read the value from the place. + (abi::BackendRepr::Memory { .. }, _) => true, // When we have scalar immediates, we can only convert things // where the sizes match, to avoid endianness questions. - (OperandValueKind::Immediate(a), OperandValueKind::Immediate(b)) => + (abi::BackendRepr::Scalar(a), abi::BackendRepr::Scalar(b)) => a.size(self.cx) == b.size(self.cx), - (OperandValueKind::Pair(a0, a1), OperandValueKind::Pair(b0, b1)) => + (abi::BackendRepr::ScalarPair(a0, a1), abi::BackendRepr::ScalarPair(b0, b1)) => a0.size(self.cx) == b0.size(self.cx) && a1.size(self.cx) == b1.size(self.cx), - // Send mixings between scalars and pairs through the memory route - // FIXME: Maybe this could use insertvalue/extractvalue instead? - (OperandValueKind::Immediate(..), OperandValueKind::Pair(..)) | - (OperandValueKind::Pair(..), OperandValueKind::Immediate(..)) => false, + // Mixing Scalars and ScalarPairs can get quite complicated when + // padding and undef get involved, so leave that to the memory path. + (abi::BackendRepr::Scalar(_), abi::BackendRepr::ScalarPair(_, _)) | + (abi::BackendRepr::ScalarPair(_, _), abi::BackendRepr::Scalar(_)) => false, + + // SIMD vectors aren't worth the trouble of dealing with complex + // cases like from vectors of f32 to vectors of pointers or + // from fat pointers to vectors of u16. (See #143194 #110021 ...) + (abi::BackendRepr::SimdVector { .. }, _) | (_, abi::BackendRepr::SimdVector { .. }) => false, } } mir::Rvalue::Ref(..) | @@ -1071,68 +1040,43 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { // (*) this is only true if the type is suitable } - - /// Gets which variant of [`OperandValue`] is expected for a particular type. - fn value_kind(&self, layout: TyAndLayout<'tcx>) -> OperandValueKind { - if layout.is_zst() { - OperandValueKind::ZeroSized - } else if self.cx.is_backend_immediate(layout) { - assert!(!self.cx.is_backend_scalar_pair(layout)); - OperandValueKind::Immediate(match layout.backend_repr { - abi::BackendRepr::Scalar(s) => s, - abi::BackendRepr::SimdVector { element, .. } => element, - x => span_bug!(self.mir.span, "Couldn't translate {x:?} as backend immediate"), - }) - } else if self.cx.is_backend_scalar_pair(layout) { - let abi::BackendRepr::ScalarPair(s1, s2) = layout.backend_repr else { - span_bug!( - self.mir.span, - "Couldn't translate {:?} as backend scalar pair", - layout.backend_repr, - ); - }; - OperandValueKind::Pair(s1, s2) - } else { - OperandValueKind::Ref - } - } } -/// The variants of this match [`OperandValue`], giving details about the -/// backend values that will be held in that other type. -#[derive(Debug, Copy, Clone)] -enum OperandValueKind { - Ref, - Immediate(abi::Scalar), - Pair(abi::Scalar, abi::Scalar), - ZeroSized, -} - -/// Transmutes one of the immediates from an [`OperandValue::Immediate`] -/// or an [`OperandValue::Pair`] to an immediate of the target type. +/// Transmutes a single scalar value `imm` from `from_scalar` to `to_scalar`. +/// +/// This is expected to be in *immediate* form, as seen in [`OperandValue::Immediate`] +/// or [`OperandValue::Pair`] (so `i1` for bools, not `i8`, for example). /// -/// `to_backend_ty` must be the *non*-immediate backend type (so it will be -/// `i8`, not `i1`, for `bool`-like types.) -pub(super) fn transmute_immediate<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( +/// ICEs if the passed-in `imm` is not a value of the expected type for +/// `from_scalar`, such as if it's a vector or a pair. +pub(super) fn transmute_scalar<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( bx: &mut Bx, mut imm: Bx::Value, from_scalar: abi::Scalar, - from_backend_ty: Bx::Type, to_scalar: abi::Scalar, - to_backend_ty: Bx::Type, ) -> Bx::Value { assert_eq!(from_scalar.size(bx.cx()), to_scalar.size(bx.cx())); + let imm_ty = bx.cx().val_ty(imm); + assert_ne!( + bx.cx().type_kind(imm_ty), + TypeKind::Vector, + "Vector type {imm_ty:?} not allowed in transmute_scalar {from_scalar:?} -> {to_scalar:?}" + ); // While optimizations will remove no-op transmutes, they might still be // there in debug or things that aren't no-op in MIR because they change // the Rust type but not the underlying layout/niche. - if from_scalar == to_scalar && from_backend_ty == to_backend_ty { + if from_scalar == to_scalar { return imm; } use abi::Primitive::*; imm = bx.from_immediate(imm); + let from_backend_ty = bx.cx().type_from_scalar(from_scalar); + debug_assert_eq!(bx.cx().val_ty(imm), from_backend_ty); + let to_backend_ty = bx.cx().type_from_scalar(to_scalar); + // If we have a scalar, we must already know its range. Either // // 1) It's a parameter with `range` parameter metadata, @@ -1163,6 +1107,8 @@ pub(super) fn transmute_immediate<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( } }; + debug_assert_eq!(bx.cx().val_ty(imm), to_backend_ty); + // This `assume` remains important for cases like (a conceptual) // transmute::<u32, NonZeroU32>(x) == 0 // since it's never passed to something with parameter metadata (especially diff --git a/compiler/rustc_const_eval/src/const_eval/mod.rs b/compiler/rustc_const_eval/src/const_eval/mod.rs index d95d552d7d5..0082f90f3b8 100644 --- a/compiler/rustc_const_eval/src/const_eval/mod.rs +++ b/compiler/rustc_const_eval/src/const_eval/mod.rs @@ -1,9 +1,9 @@ // Not in interpret to make sure we do not use private implementation details use rustc_abi::{FieldIdx, VariantIdx}; -use rustc_middle::query::Key; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_middle::{bug, mir}; +use rustc_span::DUMMY_SP; use tracing::instrument; use crate::interpret::InterpCx; @@ -71,8 +71,7 @@ pub fn tag_for_variant_provider<'tcx>( let (ty, variant_index) = key.value; assert!(ty.is_enum()); - let ecx = - InterpCx::new(tcx, ty.default_span(tcx), key.typing_env, crate::const_eval::DummyMachine); + let ecx = InterpCx::new(tcx, DUMMY_SP, key.typing_env, crate::const_eval::DummyMachine); let layout = ecx.layout_of(ty).unwrap(); ecx.tag_for_variant(layout, variant_index).unwrap().map(|(tag, _tag_field)| tag) diff --git a/compiler/rustc_const_eval/src/interpret/memory.rs b/compiler/rustc_const_eval/src/interpret/memory.rs index ff822b52a8d..c97d53a45de 100644 --- a/compiler/rustc_const_eval/src/interpret/memory.rs +++ b/compiler/rustc_const_eval/src/interpret/memory.rs @@ -537,7 +537,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { #[inline] fn is_offset_misaligned(offset: u64, align: Align) -> Option<Misalignment> { - if offset % align.bytes() == 0 { + if offset.is_multiple_of(align.bytes()) { None } else { // The biggest power of two through which `offset` is divisible. @@ -1554,7 +1554,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { // If the allocation is N-aligned, and the offset is not divisible by N, // then `base + offset` has a non-zero remainder after division by `N`, // which means `base + offset` cannot be null. - if offset.bytes() % info.align.bytes() != 0 { + if !offset.bytes().is_multiple_of(info.align.bytes()) { return interp_ok(false); } // We don't know enough, this might be null. diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index 80f6e9d9fc4..d6d89808839 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -348,6 +348,10 @@ pub trait TTMacroExpander { span: Span, input: TokenStream, ) -> MacroExpanderResult<'cx>; + + fn get_unused_rule(&self, _rule_i: usize) -> Option<(&Ident, Span)> { + None + } } pub type MacroExpanderResult<'cx> = ExpandResult<Box<dyn MacResult + 'cx>, ()>; diff --git a/compiler/rustc_expand/src/mbe/diagnostics.rs b/compiler/rustc_expand/src/mbe/diagnostics.rs index c607a3a3652..7a280d671f4 100644 --- a/compiler/rustc_expand/src/mbe/diagnostics.rs +++ b/compiler/rustc_expand/src/mbe/diagnostics.rs @@ -10,7 +10,7 @@ use rustc_span::source_map::SourceMap; use rustc_span::{ErrorGuaranteed, Ident, Span}; use tracing::debug; -use super::macro_rules::{NoopTracker, parser_from_cx}; +use super::macro_rules::{MacroRule, NoopTracker, parser_from_cx}; use crate::expand::{AstFragmentKind, parse_ast_fragment}; use crate::mbe::macro_parser::ParseResult::*; use crate::mbe::macro_parser::{MatcherLoc, NamedParseResult, TtParser}; @@ -22,14 +22,14 @@ pub(super) fn failed_to_match_macro( def_span: Span, name: Ident, arg: TokenStream, - lhses: &[Vec<MatcherLoc>], + rules: &[MacroRule], ) -> (Span, ErrorGuaranteed) { debug!("failed to match macro"); // An error occurred, try the expansion again, tracking the expansion closely for better // diagnostics. let mut tracker = CollectTrackerAndEmitter::new(psess.dcx(), sp); - let try_success_result = try_match_macro(psess, name, &arg, lhses, &mut tracker); + let try_success_result = try_match_macro(psess, name, &arg, rules, &mut tracker); if try_success_result.is_ok() { // Nonterminal parser recovery might turn failed matches into successful ones, @@ -80,12 +80,12 @@ pub(super) fn failed_to_match_macro( // Check whether there's a missing comma in this macro call, like `println!("{}" a);` if let Some((arg, comma_span)) = arg.add_comma() { - for lhs in lhses { + for rule in rules { let parser = parser_from_cx(psess, arg.clone(), Recovery::Allowed); let mut tt_parser = TtParser::new(name); if let Success(_) = - tt_parser.parse_tt(&mut Cow::Borrowed(&parser), lhs, &mut NoopTracker) + tt_parser.parse_tt(&mut Cow::Borrowed(&parser), &rule.lhs, &mut NoopTracker) { if comma_span.is_dummy() { err.note("you might be missing a comma"); diff --git a/compiler/rustc_expand/src/mbe/macro_rules.rs b/compiler/rustc_expand/src/mbe/macro_rules.rs index 2ffd4e3cf28..52cdcc5c747 100644 --- a/compiler/rustc_expand/src/mbe/macro_rules.rs +++ b/compiler/rustc_expand/src/mbe/macro_rules.rs @@ -36,6 +36,7 @@ use crate::base::{ }; use crate::expand::{AstFragment, AstFragmentKind, ensure_complete_parse, parse_ast_fragment}; use crate::mbe::macro_parser::{Error, ErrorReported, Failure, MatcherLoc, Success, TtParser}; +use crate::mbe::quoted::{RulePart, parse_one_tt}; use crate::mbe::transcribe::transcribe; use crate::mbe::{self, KleeneOp, macro_check}; @@ -97,13 +98,18 @@ impl<'a> ParserAnyMacro<'a> { } } +pub(super) struct MacroRule { + pub(super) lhs: Vec<MatcherLoc>, + lhs_span: Span, + rhs: mbe::TokenTree, +} + struct MacroRulesMacroExpander { node_id: NodeId, name: Ident, span: Span, transparency: Transparency, - lhses: Vec<Vec<MatcherLoc>>, - rhses: Vec<mbe::TokenTree>, + rules: Vec<MacroRule>, } impl TTMacroExpander for MacroRulesMacroExpander { @@ -121,10 +127,15 @@ impl TTMacroExpander for MacroRulesMacroExpander { self.name, self.transparency, input, - &self.lhses, - &self.rhses, + &self.rules, )) } + + fn get_unused_rule(&self, rule_i: usize) -> Option<(&Ident, Span)> { + // If the rhs contains an invocation like `compile_error!`, don't report it as unused. + let rule = &self.rules[rule_i]; + if has_compile_error_macro(&rule.rhs) { None } else { Some((&self.name, rule.lhs_span)) } + } } struct DummyExpander(ErrorGuaranteed); @@ -183,9 +194,8 @@ impl<'matcher> Tracker<'matcher> for NoopTracker { } } -/// Expands the rules based macro defined by `lhses` and `rhses` for a given -/// input `arg`. -#[instrument(skip(cx, transparency, arg, lhses, rhses))] +/// Expands the rules based macro defined by `rules` for a given input `arg`. +#[instrument(skip(cx, transparency, arg, rules))] fn expand_macro<'cx>( cx: &'cx mut ExtCtxt<'_>, sp: Span, @@ -194,8 +204,7 @@ fn expand_macro<'cx>( name: Ident, transparency: Transparency, arg: TokenStream, - lhses: &[Vec<MatcherLoc>], - rhses: &[mbe::TokenTree], + rules: &[MacroRule], ) -> Box<dyn MacResult + 'cx> { let psess = &cx.sess.psess; // Macros defined in the current crate have a real node id, @@ -208,15 +217,14 @@ fn expand_macro<'cx>( } // Track nothing for the best performance. - let try_success_result = try_match_macro(psess, name, &arg, lhses, &mut NoopTracker); + let try_success_result = try_match_macro(psess, name, &arg, rules, &mut NoopTracker); match try_success_result { - Ok((i, named_matches)) => { - let (rhs, rhs_span): (&mbe::Delimited, DelimSpan) = match &rhses[i] { - mbe::TokenTree::Delimited(span, _, delimited) => (&delimited, *span), - _ => cx.dcx().span_bug(sp, "malformed macro rhs"), + Ok((i, rule, named_matches)) => { + let mbe::TokenTree::Delimited(rhs_span, _, ref rhs) = rule.rhs else { + cx.dcx().span_bug(sp, "malformed macro rhs"); }; - let arm_span = rhses[i].span(); + let arm_span = rule.rhs.span(); // rhs has holes ( `$id` and `$(...)` that need filled) let id = cx.current_expansion.id; @@ -262,7 +270,7 @@ fn expand_macro<'cx>( Err(CanRetry::Yes) => { // Retry and emit a better error. let (span, guar) = - diagnostics::failed_to_match_macro(cx.psess(), sp, def_span, name, arg, lhses); + diagnostics::failed_to_match_macro(cx.psess(), sp, def_span, name, arg, rules); cx.trace_macros_diag(); DummyResult::any(span, guar) } @@ -278,14 +286,14 @@ pub(super) enum CanRetry { /// Try expanding the macro. Returns the index of the successful arm and its named_matches if it was successful, /// and nothing if it failed. On failure, it's the callers job to use `track` accordingly to record all errors /// correctly. -#[instrument(level = "debug", skip(psess, arg, lhses, track), fields(tracking = %T::description()))] +#[instrument(level = "debug", skip(psess, arg, rules, track), fields(tracking = %T::description()))] pub(super) fn try_match_macro<'matcher, T: Tracker<'matcher>>( psess: &ParseSess, name: Ident, arg: &TokenStream, - lhses: &'matcher [Vec<MatcherLoc>], + rules: &'matcher [MacroRule], track: &mut T, -) -> Result<(usize, NamedMatches), CanRetry> { +) -> Result<(usize, &'matcher MacroRule, NamedMatches), CanRetry> { // We create a base parser that can be used for the "black box" parts. // Every iteration needs a fresh copy of that parser. However, the parser // is not mutated on many of the iterations, particularly when dealing with @@ -308,7 +316,7 @@ pub(super) fn try_match_macro<'matcher, T: Tracker<'matcher>>( let parser = parser_from_cx(psess, arg.clone(), T::recovery()); // Try each arm's matchers. let mut tt_parser = TtParser::new(name); - for (i, lhs) in lhses.iter().enumerate() { + for (i, rule) in rules.iter().enumerate() { let _tracing_span = trace_span!("Matching arm", %i); // Take a snapshot of the state of pre-expansion gating at this point. @@ -317,7 +325,7 @@ pub(super) fn try_match_macro<'matcher, T: Tracker<'matcher>>( // are not recorded. On the first `Success(..)`ful matcher, the spans are merged. let mut gated_spans_snapshot = mem::take(&mut *psess.gated_spans.spans.borrow_mut()); - let result = tt_parser.parse_tt(&mut Cow::Borrowed(&parser), lhs, track); + let result = tt_parser.parse_tt(&mut Cow::Borrowed(&parser), &rule.lhs, track); track.after_arm(&result); @@ -328,7 +336,7 @@ pub(super) fn try_match_macro<'matcher, T: Tracker<'matcher>>( // Merge the gated spans from parsing the matcher with the preexisting ones. psess.gated_spans.merge(gated_spans_snapshot); - return Ok((i, named_matches)); + return Ok((i, rule, named_matches)); } Failure(_) => { trace!("Failed to match arm, trying the next one"); @@ -364,7 +372,7 @@ pub fn compile_declarative_macro( span: Span, node_id: NodeId, edition: Edition, -) -> (SyntaxExtension, Vec<(usize, Span)>) { +) -> (SyntaxExtension, usize) { let mk_syn_ext = |expander| { SyntaxExtension::new( sess, @@ -377,7 +385,7 @@ pub fn compile_declarative_macro( node_id != DUMMY_NODE_ID, ) }; - let dummy_syn_ext = |guar| (mk_syn_ext(Arc::new(DummyExpander(guar))), Vec::new()); + let dummy_syn_ext = |guar| (mk_syn_ext(Arc::new(DummyExpander(guar))), 0); let macro_rules = macro_def.macro_rules; let exp_sep = if macro_rules { exp!(Semi) } else { exp!(Comma) }; @@ -389,21 +397,11 @@ pub fn compile_declarative_macro( let mut guar = None; let mut check_emission = |ret: Result<(), ErrorGuaranteed>| guar = guar.or(ret.err()); - let mut lhses = Vec::new(); - let mut rhses = Vec::new(); + let mut rules = Vec::new(); while p.token != token::Eof { let lhs_tt = p.parse_token_tree(); - let lhs_tt = mbe::quoted::parse( - &TokenStream::new(vec![lhs_tt]), - true, // LHS - sess, - node_id, - features, - edition, - ) - .pop() - .unwrap(); + let lhs_tt = parse_one_tt(lhs_tt, RulePart::Pattern, sess, node_id, features, edition); // We don't handle errors here, the driver will abort after parsing/expansion. We can // report every error in every macro this way. check_emission(check_lhs_nt_follows(sess, node_id, &lhs_tt)); @@ -421,20 +419,18 @@ pub fn compile_declarative_macro( return dummy_syn_ext(guar); } let rhs_tt = p.parse_token_tree(); - let rhs_tt = mbe::quoted::parse( - &TokenStream::new(vec![rhs_tt]), - false, // RHS - sess, - node_id, - features, - edition, - ) - .pop() - .unwrap(); + let rhs_tt = parse_one_tt(rhs_tt, RulePart::Body, sess, node_id, features, edition); check_emission(check_rhs(sess, &rhs_tt)); check_emission(macro_check::check_meta_variables(&sess.psess, node_id, &lhs_tt, &rhs_tt)); - lhses.push(lhs_tt); - rhses.push(rhs_tt); + let lhs_span = lhs_tt.span(); + // Convert the lhs into `MatcherLoc` form, which is better for doing the + // actual matching. + let lhs = if let mbe::TokenTree::Delimited(.., delimited) = lhs_tt { + mbe::macro_parser::compute_locs(&delimited.tts) + } else { + return dummy_syn_ext(guar.unwrap()); + }; + rules.push(MacroRule { lhs, lhs_span, rhs: rhs_tt }); if p.token == token::Eof { break; } @@ -443,7 +439,7 @@ pub fn compile_declarative_macro( } } - if lhses.is_empty() { + if rules.is_empty() { let guar = sess.dcx().span_err(span, "macros must contain at least one rule"); return dummy_syn_ext(guar); } @@ -457,48 +453,12 @@ pub fn compile_declarative_macro( return dummy_syn_ext(guar); } - // Compute the spans of the macro rules for unused rule linting. - // Also, we are only interested in non-foreign macros. - let rule_spans = if node_id != DUMMY_NODE_ID { - lhses - .iter() - .zip(rhses.iter()) - .enumerate() - // If the rhs contains an invocation like compile_error!, - // don't consider the rule for the unused rule lint. - .filter(|(_idx, (_lhs, rhs))| !has_compile_error_macro(rhs)) - // We only take the span of the lhs here, - // so that the spans of created warnings are smaller. - .map(|(idx, (lhs, _rhs))| (idx, lhs.span())) - .collect::<Vec<_>>() - } else { - Vec::new() - }; + // Return the number of rules for unused rule linting, if this is a local macro. + let nrules = if node_id != DUMMY_NODE_ID { rules.len() } else { 0 }; - // Convert the lhses into `MatcherLoc` form, which is better for doing the - // actual matching. - let lhses = lhses - .iter() - .map(|lhs| { - // Ignore the delimiters around the matcher. - match lhs { - mbe::TokenTree::Delimited(.., delimited) => { - mbe::macro_parser::compute_locs(&delimited.tts) - } - _ => sess.dcx().span_bug(span, "malformed macro lhs"), - } - }) - .collect(); - - let expander = Arc::new(MacroRulesMacroExpander { - name: ident, - span, - node_id, - transparency, - lhses, - rhses, - }); - (mk_syn_ext(expander), rule_spans) + let expander = + Arc::new(MacroRulesMacroExpander { name: ident, span, node_id, transparency, rules }); + (mk_syn_ext(expander), nrules) } fn check_lhs_nt_follows( diff --git a/compiler/rustc_expand/src/mbe/quoted.rs b/compiler/rustc_expand/src/mbe/quoted.rs index 2daa4e71558..eb874a27cec 100644 --- a/compiler/rustc_expand/src/mbe/quoted.rs +++ b/compiler/rustc_expand/src/mbe/quoted.rs @@ -16,6 +16,27 @@ pub(crate) const VALID_FRAGMENT_NAMES_MSG: &str = "valid fragment specifiers are `ident`, `block`, `stmt`, `expr`, `pat`, `ty`, `lifetime`, `literal`, `path`, \ `meta`, `tt`, `item` and `vis`, along with `expr_2021` and `pat_param` for edition compatibility"; +/// Which part of a macro rule we're parsing +#[derive(Copy, Clone)] +pub(crate) enum RulePart { + /// The left-hand side, with patterns and metavar definitions with types + Pattern, + /// The right-hand side body, with metavar references and metavar expressions + Body, +} + +impl RulePart { + #[inline(always)] + fn is_pattern(&self) -> bool { + matches!(self, Self::Pattern) + } + + #[inline(always)] + fn is_body(&self) -> bool { + matches!(self, Self::Body) + } +} + /// Takes a `tokenstream::TokenStream` and returns a `Vec<self::TokenTree>`. Specifically, this /// takes a generic `TokenStream`, such as is used in the rest of the compiler, and returns a /// collection of `TokenTree` for use in parsing a macro. @@ -23,8 +44,8 @@ pub(crate) const VALID_FRAGMENT_NAMES_MSG: &str = "valid fragment specifiers are /// # Parameters /// /// - `input`: a token stream to read from, the contents of which we are parsing. -/// - `parsing_patterns`: `parse` can be used to parse either the "patterns" or the "body" of a -/// macro. Both take roughly the same form _except_ that: +/// - `part`: whether we're parsing the patterns or the body of a macro. Both take roughly the same +/// form _except_ that: /// - In a pattern, metavars are declared with their "matcher" type. For example `$var:expr` or /// `$id:ident`. In this example, `expr` and `ident` are "matchers". They are not present in the /// body of a macro rule -- just in the pattern. @@ -36,9 +57,9 @@ pub(crate) const VALID_FRAGMENT_NAMES_MSG: &str = "valid fragment specifiers are /// # Returns /// /// A collection of `self::TokenTree`. There may also be some errors emitted to `sess`. -pub(super) fn parse( +fn parse( input: &tokenstream::TokenStream, - parsing_patterns: bool, + part: RulePart, sess: &Session, node_id: NodeId, features: &Features, @@ -53,9 +74,9 @@ pub(super) fn parse( while let Some(tree) = iter.next() { // Given the parsed tree, if there is a metavar and we are expecting matchers, actually // parse out the matcher (i.e., in `$id:ident` this would parse the `:` and `ident`). - let tree = parse_tree(tree, &mut iter, parsing_patterns, sess, node_id, features, edition); + let tree = parse_tree(tree, &mut iter, part, sess, node_id, features, edition); - if !parsing_patterns { + if part.is_body() { // No matchers allowed, nothing to process here result.push(tree); continue; @@ -131,6 +152,22 @@ pub(super) fn parse( result } +/// Takes a `tokenstream::TokenTree` and returns a `self::TokenTree`. Like `parse`, but for a +/// single token tree. Emits errors to `sess` if needed. +#[inline] +pub(super) fn parse_one_tt( + input: tokenstream::TokenTree, + part: RulePart, + sess: &Session, + node_id: NodeId, + features: &Features, + edition: Edition, +) -> TokenTree { + parse(&tokenstream::TokenStream::new(vec![input]), part, sess, node_id, features, edition) + .pop() + .unwrap() +} + /// Asks for the `macro_metavar_expr` feature if it is not enabled fn maybe_emit_macro_metavar_expr_feature(features: &Features, sess: &Session, span: Span) { if !features.macro_metavar_expr() { @@ -157,13 +194,13 @@ fn maybe_emit_macro_metavar_expr_concat_feature(features: &Features, sess: &Sess /// - `tree`: the tree we wish to convert. /// - `outer_iter`: an iterator over trees. We may need to read more tokens from it in order to finish /// converting `tree` -/// - `parsing_patterns`: same as [parse]. +/// - `part`: same as [parse]. /// - `sess`: the parsing session. Any errors will be emitted to this session. /// - `features`: language features so we can do feature gating. fn parse_tree<'a>( tree: &'a tokenstream::TokenTree, outer_iter: &mut TokenStreamIter<'a>, - parsing_patterns: bool, + part: RulePart, sess: &Session, node_id: NodeId, features: &Features, @@ -189,7 +226,7 @@ fn parse_tree<'a>( match next { // `tree` is followed by a delimited set of token trees. Some(&tokenstream::TokenTree::Delimited(delim_span, _, delim, ref tts)) => { - if parsing_patterns { + if part.is_pattern() { if delim != Delimiter::Parenthesis { span_dollar_dollar_or_metavar_in_the_lhs_err( sess, @@ -244,13 +281,13 @@ fn parse_tree<'a>( // If we didn't find a metavar expression above, then we must have a // repetition sequence in the macro (e.g. `$(pat)*`). Parse the // contents of the sequence itself - let sequence = parse(tts, parsing_patterns, sess, node_id, features, edition); + let sequence = parse(tts, part, sess, node_id, features, edition); // Get the Kleene operator and optional separator let (separator, kleene) = parse_sep_and_kleene_op(&mut iter, delim_span.entire(), sess); // Count the number of captured "names" (i.e., named metavars) let num_captures = - if parsing_patterns { count_metavar_decls(&sequence) } else { 0 }; + if part.is_pattern() { count_metavar_decls(&sequence) } else { 0 }; TokenTree::Sequence( delim_span, SequenceRepetition { tts: sequence, separator, kleene, num_captures }, @@ -274,7 +311,7 @@ fn parse_tree<'a>( Token { kind: token::Dollar, span: dollar_span2 }, _, )) => { - if parsing_patterns { + if part.is_pattern() { span_dollar_dollar_or_metavar_in_the_lhs_err( sess, &Token { kind: token::Dollar, span: dollar_span2 }, @@ -306,10 +343,7 @@ fn parse_tree<'a>( &tokenstream::TokenTree::Delimited(span, spacing, delim, ref tts) => TokenTree::Delimited( span, spacing, - Delimited { - delim, - tts: parse(tts, parsing_patterns, sess, node_id, features, edition), - }, + Delimited { delim, tts: parse(tts, part, sess, node_id, features, edition) }, ), } } diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index ca6405ea209..559a771931e 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -1303,6 +1303,7 @@ impl AttributeExt for Attribute { Attribute::Parsed(AttributeKind::Deprecation { span, .. }) => *span, Attribute::Parsed(AttributeKind::DocComment { span, .. }) => *span, Attribute::Parsed(AttributeKind::MayDangle(span)) => *span, + Attribute::Parsed(AttributeKind::Ignore { span, .. }) => *span, a => panic!("can't get the span of an arbitrary parsed attribute: {a:?}"), } } diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index f4fcb13b1a1..bd89d010a3c 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -1395,8 +1395,7 @@ fn check_simd(tcx: TyCtxt<'_>, sp: Span, def_id: LocalDefId) { pub(super) fn check_packed(tcx: TyCtxt<'_>, sp: Span, def: ty::AdtDef<'_>) { let repr = def.repr(); if repr.packed() { - if let Some(reprs) = - attrs::find_attr!(tcx.get_all_attrs(def.did()), attrs::AttributeKind::Repr(r) => r) + if let Some(reprs) = attrs::find_attr!(tcx.get_all_attrs(def.did()), attrs::AttributeKind::Repr { reprs, .. } => reprs) { for (r, _) in reprs { if let ReprPacked(pack) = r @@ -1619,10 +1618,10 @@ fn check_enum(tcx: TyCtxt<'_>, def_id: LocalDefId) { if def.variants().is_empty() { attrs::find_attr!( tcx.get_all_attrs(def_id), - attrs::AttributeKind::Repr(rs) => { + attrs::AttributeKind::Repr { reprs, first_span } => { struct_span_code_err!( tcx.dcx(), - rs.first().unwrap().1, + reprs.first().map(|repr| repr.1).unwrap_or(*first_span), E0084, "unsupported representation for zero-variant enum" ) diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs index abbe497858b..87db80f2423 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs @@ -1239,7 +1239,7 @@ fn check_region_late_boundedness<'tcx>( .unwrap_region_constraints() .opportunistic_resolve_var(tcx, vid) && let ty::ReLateParam(ty::LateParamRegion { - kind: ty::LateParamRegionKind::Named(trait_param_def_id, _), + kind: ty::LateParamRegionKind::Named(trait_param_def_id), .. }) = r.kind() && let ty::ReEarlyParam(ebr) = id_arg.expect_region().kind() @@ -1264,7 +1264,7 @@ fn check_region_late_boundedness<'tcx>( .unwrap_region_constraints() .opportunistic_resolve_var(tcx, vid) && let ty::ReLateParam(ty::LateParamRegion { - kind: ty::LateParamRegionKind::Named(impl_param_def_id, _), + kind: ty::LateParamRegionKind::Named(impl_param_def_id), .. }) = r.kind() && let ty::ReEarlyParam(ebr) = id_arg.expect_region().kind() @@ -2468,7 +2468,7 @@ fn param_env_with_gat_bounds<'tcx>( let normalize_impl_ty_args = ty::GenericArgs::identity_for_item(tcx, container_id) .extend_to(tcx, impl_ty.def_id, |param, _| match param.kind { GenericParamDefKind::Type { .. } => { - let kind = ty::BoundTyKind::Param(param.def_id, param.name); + let kind = ty::BoundTyKind::Param(param.def_id); let bound_var = ty::BoundVariableKind::Ty(kind); bound_vars.push(bound_var); Ty::new_bound( @@ -2479,7 +2479,7 @@ fn param_env_with_gat_bounds<'tcx>( .into() } GenericParamDefKind::Lifetime => { - let kind = ty::BoundRegionKind::Named(param.def_id, param.name); + let kind = ty::BoundRegionKind::Named(param.def_id); let bound_var = ty::BoundVariableKind::Region(kind); bound_vars.push(bound_var); ty::Region::new_bound( diff --git a/compiler/rustc_hir_analysis/src/check/region.rs b/compiler/rustc_hir_analysis/src/check/region.rs index c458878da15..288105dfba7 100644 --- a/compiler/rustc_hir_analysis/src/check/region.rs +++ b/compiler/rustc_hir_analysis/src/check/region.rs @@ -15,7 +15,6 @@ use rustc_hir::def_id::DefId; use rustc_hir::intravisit::{self, Visitor}; use rustc_hir::{Arm, Block, Expr, LetStmt, Pat, PatKind, Stmt}; use rustc_index::Idx; -use rustc_middle::bug; use rustc_middle::middle::region::*; use rustc_middle::ty::TyCtxt; use rustc_session::lint; @@ -34,14 +33,6 @@ struct Context { struct ScopeResolutionVisitor<'tcx> { tcx: TyCtxt<'tcx>, - // The number of expressions and patterns visited in the current body. - expr_and_pat_count: usize, - // When this is `true`, we record the `Scopes` we encounter - // when processing a Yield expression. This allows us to fix - // up their indices. - pessimistic_yield: bool, - // Stores scopes when `pessimistic_yield` is `true`. - fixup_scopes: Vec<Scope>, // The generated scope tree. scope_tree: ScopeTree, @@ -199,19 +190,14 @@ fn resolve_arm<'tcx>(visitor: &mut ScopeResolutionVisitor<'tcx>, arm: &'tcx hir: visitor.cx = prev_cx; } +#[tracing::instrument(level = "debug", skip(visitor))] fn resolve_pat<'tcx>(visitor: &mut ScopeResolutionVisitor<'tcx>, pat: &'tcx hir::Pat<'tcx>) { // If this is a binding then record the lifetime of that binding. if let PatKind::Binding(..) = pat.kind { record_var_lifetime(visitor, pat.hir_id.local_id); } - debug!("resolve_pat - pre-increment {} pat = {:?}", visitor.expr_and_pat_count, pat); - intravisit::walk_pat(visitor, pat); - - visitor.expr_and_pat_count += 1; - - debug!("resolve_pat - post-increment {} pat = {:?}", visitor.expr_and_pat_count, pat); } fn resolve_stmt<'tcx>(visitor: &mut ScopeResolutionVisitor<'tcx>, stmt: &'tcx hir::Stmt<'tcx>) { @@ -243,68 +229,15 @@ fn resolve_stmt<'tcx>(visitor: &mut ScopeResolutionVisitor<'tcx>, stmt: &'tcx hi } } +#[tracing::instrument(level = "debug", skip(visitor))] fn resolve_expr<'tcx>( visitor: &mut ScopeResolutionVisitor<'tcx>, expr: &'tcx hir::Expr<'tcx>, terminating: bool, ) { - debug!("resolve_expr - pre-increment {} expr = {:?}", visitor.expr_and_pat_count, expr); - let prev_cx = visitor.cx; visitor.enter_node_scope_with_dtor(expr.hir_id.local_id, terminating); - let prev_pessimistic = visitor.pessimistic_yield; - - // Ordinarily, we can rely on the visit order of HIR intravisit - // to correspond to the actual execution order of statements. - // However, there's a weird corner case with compound assignment - // operators (e.g. `a += b`). The evaluation order depends on whether - // or not the operator is overloaded (e.g. whether or not a trait - // like AddAssign is implemented). - - // For primitive types (which, despite having a trait impl, don't actually - // end up calling it), the evaluation order is right-to-left. For example, - // the following code snippet: - // - // let y = &mut 0; - // *{println!("LHS!"); y} += {println!("RHS!"); 1}; - // - // will print: - // - // RHS! - // LHS! - // - // However, if the operator is used on a non-primitive type, - // the evaluation order will be left-to-right, since the operator - // actually get desugared to a method call. For example, this - // nearly identical code snippet: - // - // let y = &mut String::new(); - // *{println!("LHS String"); y} += {println!("RHS String"); "hi"}; - // - // will print: - // LHS String - // RHS String - // - // To determine the actual execution order, we need to perform - // trait resolution. Unfortunately, we need to be able to compute - // yield_in_scope before type checking is even done, as it gets - // used by AST borrowcheck. - // - // Fortunately, we don't need to know the actual execution order. - // It suffices to know the 'worst case' order with respect to yields. - // Specifically, we need to know the highest 'expr_and_pat_count' - // that we could assign to the yield expression. To do this, - // we pick the greater of the two values from the left-hand - // and right-hand expressions. This makes us overly conservative - // about what types could possibly live across yield points, - // but we will never fail to detect that a type does actually - // live across a yield point. The latter part is critical - - // we're already overly conservative about what types will live - // across yield points, as the generated MIR will determine - // when things are actually live. However, for typecheck to work - // properly, we can't miss any types. - match expr.kind { // Conditional or repeating scopes are always terminating // scopes, meaning that temporaries cannot outlive them. @@ -360,55 +293,42 @@ fn resolve_expr<'tcx>( let body = visitor.tcx.hir_body(body); visitor.visit_body(body); } + // Ordinarily, we can rely on the visit order of HIR intravisit + // to correspond to the actual execution order of statements. + // However, there's a weird corner case with compound assignment + // operators (e.g. `a += b`). The evaluation order depends on whether + // or not the operator is overloaded (e.g. whether or not a trait + // like AddAssign is implemented). + // + // For primitive types (which, despite having a trait impl, don't actually + // end up calling it), the evaluation order is right-to-left. For example, + // the following code snippet: + // + // let y = &mut 0; + // *{println!("LHS!"); y} += {println!("RHS!"); 1}; + // + // will print: + // + // RHS! + // LHS! + // + // However, if the operator is used on a non-primitive type, + // the evaluation order will be left-to-right, since the operator + // actually get desugared to a method call. For example, this + // nearly identical code snippet: + // + // let y = &mut String::new(); + // *{println!("LHS String"); y} += {println!("RHS String"); "hi"}; + // + // will print: + // LHS String + // RHS String + // + // To determine the actual execution order, we need to perform + // trait resolution. Fortunately, we don't need to know the actual execution order. hir::ExprKind::AssignOp(_, left_expr, right_expr) => { - debug!( - "resolve_expr - enabling pessimistic_yield, was previously {}", - prev_pessimistic - ); - - let start_point = visitor.fixup_scopes.len(); - visitor.pessimistic_yield = true; - - // If the actual execution order turns out to be right-to-left, - // then we're fine. However, if the actual execution order is left-to-right, - // then we'll assign too low a count to any `yield` expressions - // we encounter in 'right_expression' - they should really occur after all of the - // expressions in 'left_expression'. visitor.visit_expr(right_expr); - visitor.pessimistic_yield = prev_pessimistic; - - debug!("resolve_expr - restoring pessimistic_yield to {}", prev_pessimistic); visitor.visit_expr(left_expr); - debug!("resolve_expr - fixing up counts to {}", visitor.expr_and_pat_count); - - // Remove and process any scopes pushed by the visitor - let target_scopes = visitor.fixup_scopes.drain(start_point..); - - for scope in target_scopes { - let yield_data = - visitor.scope_tree.yield_in_scope.get_mut(&scope).unwrap().last_mut().unwrap(); - let count = yield_data.expr_and_pat_count; - let span = yield_data.span; - - // expr_and_pat_count never decreases. Since we recorded counts in yield_in_scope - // before walking the left-hand side, it should be impossible for the recorded - // count to be greater than the left-hand side count. - if count > visitor.expr_and_pat_count { - bug!( - "Encountered greater count {} at span {:?} - expected no greater than {}", - count, - span, - visitor.expr_and_pat_count - ); - } - let new_count = visitor.expr_and_pat_count; - debug!( - "resolve_expr - increasing count for scope {:?} from {} to {} at span {:?}", - scope, count, new_count, span - ); - - yield_data.expr_and_pat_count = new_count; - } } hir::ExprKind::If(cond, then, Some(otherwise)) => { @@ -453,43 +373,6 @@ fn resolve_expr<'tcx>( _ => intravisit::walk_expr(visitor, expr), } - visitor.expr_and_pat_count += 1; - - debug!("resolve_expr post-increment {}, expr = {:?}", visitor.expr_and_pat_count, expr); - - if let hir::ExprKind::Yield(_, source) = &expr.kind { - // Mark this expr's scope and all parent scopes as containing `yield`. - let mut scope = Scope { local_id: expr.hir_id.local_id, data: ScopeData::Node }; - loop { - let data = YieldData { - span: expr.span, - expr_and_pat_count: visitor.expr_and_pat_count, - source: *source, - }; - match visitor.scope_tree.yield_in_scope.get_mut(&scope) { - Some(yields) => yields.push(data), - None => { - visitor.scope_tree.yield_in_scope.insert(scope, vec![data]); - } - } - - if visitor.pessimistic_yield { - debug!("resolve_expr in pessimistic_yield - marking scope {:?} for fixup", scope); - visitor.fixup_scopes.push(scope); - } - - // Keep traversing up while we can. - match visitor.scope_tree.parent_map.get(&scope) { - // Don't cross from closure bodies to their parent. - Some(&superscope) => match superscope.data { - ScopeData::CallSite => break, - _ => scope = superscope, - }, - None => break, - } - } - } - visitor.cx = prev_cx; } @@ -612,8 +495,8 @@ fn resolve_local<'tcx>( } } - // Make sure we visit the initializer first, so expr_and_pat_count remains correct. - // The correct order, as shared between coroutine_interior, drop_ranges and intravisitor, + // Make sure we visit the initializer first. + // The correct order, as shared between drop_ranges and intravisitor, // is to walk initializer, followed by pattern bindings, finally followed by the `else` block. if let Some(expr) = init { visitor.visit_expr(expr); @@ -798,16 +681,7 @@ impl<'tcx> ScopeResolutionVisitor<'tcx> { } fn enter_body(&mut self, hir_id: hir::HirId, f: impl FnOnce(&mut Self)) { - // Save all state that is specific to the outer function - // body. These will be restored once down below, once we've - // visited the body. - let outer_ec = mem::replace(&mut self.expr_and_pat_count, 0); let outer_cx = self.cx; - // The 'pessimistic yield' flag is set to true when we are - // processing a `+=` statement and have to make pessimistic - // control flow assumptions. This doesn't apply to nested - // bodies within the `+=` statements. See #69307. - let outer_pessimistic_yield = mem::replace(&mut self.pessimistic_yield, false); self.enter_scope(Scope { local_id: hir_id.local_id, data: ScopeData::CallSite }); self.enter_scope(Scope { local_id: hir_id.local_id, data: ScopeData::Arguments }); @@ -815,9 +689,7 @@ impl<'tcx> ScopeResolutionVisitor<'tcx> { f(self); // Restore context we had at the start. - self.expr_and_pat_count = outer_ec; self.cx = outer_cx; - self.pessimistic_yield = outer_pessimistic_yield; } } @@ -919,10 +791,7 @@ pub(crate) fn region_scope_tree(tcx: TyCtxt<'_>, def_id: DefId) -> &ScopeTree { let mut visitor = ScopeResolutionVisitor { tcx, scope_tree: ScopeTree::default(), - expr_and_pat_count: 0, cx: Context { parent: None, var_parent: None }, - pessimistic_yield: false, - fixup_scopes: vec![], extended_super_lets: Default::default(), }; diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index 4934136bc7a..0a3e018b79a 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -2338,7 +2338,7 @@ fn lint_redundant_lifetimes<'tcx>( lifetimes.push(ty::Region::new_late_param(tcx, owner_id.to_def_id(), kind)); } } - lifetimes.retain(|candidate| candidate.has_name()); + lifetimes.retain(|candidate| candidate.is_named(tcx)); // Keep track of lifetimes which have already been replaced with other lifetimes. // This makes sure that if `'a = 'b = 'c`, we don't say `'c` should be replaced by diff --git a/compiler/rustc_hir_analysis/src/coherence/builtin.rs b/compiler/rustc_hir_analysis/src/coherence/builtin.rs index 65bc441a473..8356a0af63c 100644 --- a/compiler/rustc_hir_analysis/src/coherence/builtin.rs +++ b/compiler/rustc_hir_analysis/src/coherence/builtin.rs @@ -654,7 +654,7 @@ fn infringing_fields_error<'tcx>( .or_default() .push(origin.span()); if let ty::RegionKind::ReEarlyParam(ebr) = b.kind() - && ebr.has_name() + && ebr.is_named() { bounds.push((b.to_string(), a.to_string(), None)); } diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index 271104c20c6..25064c327d0 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -578,13 +578,7 @@ fn get_new_lifetime_name<'tcx>( let existing_lifetimes = tcx .collect_referenced_late_bound_regions(poly_trait_ref) .into_iter() - .filter_map(|lt| { - if let ty::BoundRegionKind::Named(_, name) = lt { - Some(name.as_str().to_string()) - } else { - None - } - }) + .filter_map(|lt| lt.get_name(tcx).map(|name| name.as_str().to_string())) .chain(generics.params.iter().filter_map(|param| { if let hir::GenericParamKind::Lifetime { .. } = ¶m.kind { Some(param.name.ident().as_str().to_string()) diff --git a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs index 0e775d374ab..a0d1273eb85 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -279,19 +279,13 @@ fn resolve_bound_vars(tcx: TyCtxt<'_>, local_def_id: hir::OwnerId) -> ResolveBou rbv } -fn late_arg_as_bound_arg<'tcx>( - tcx: TyCtxt<'tcx>, - param: &GenericParam<'tcx>, -) -> ty::BoundVariableKind { +fn late_arg_as_bound_arg<'tcx>(param: &GenericParam<'tcx>) -> ty::BoundVariableKind { let def_id = param.def_id.to_def_id(); - let name = tcx.item_name(def_id); match param.kind { GenericParamKind::Lifetime { .. } => { - ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id, name)) - } - GenericParamKind::Type { .. } => { - ty::BoundVariableKind::Ty(ty::BoundTyKind::Param(def_id, name)) + ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id)) } + GenericParamKind::Type { .. } => ty::BoundVariableKind::Ty(ty::BoundTyKind::Param(def_id)), GenericParamKind::Const { .. } => ty::BoundVariableKind::Const, } } @@ -302,10 +296,10 @@ fn late_arg_as_bound_arg<'tcx>( fn generic_param_def_as_bound_arg(param: &ty::GenericParamDef) -> ty::BoundVariableKind { match param.kind { ty::GenericParamDefKind::Lifetime => { - ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(param.def_id, param.name)) + ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(param.def_id)) } ty::GenericParamDefKind::Type { .. } => { - ty::BoundVariableKind::Ty(ty::BoundTyKind::Param(param.def_id, param.name)) + ty::BoundVariableKind::Ty(ty::BoundTyKind::Param(param.def_id)) } ty::GenericParamDefKind::Const { .. } => ty::BoundVariableKind::Const, } @@ -386,7 +380,7 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> { trait_ref.bound_generic_params.iter().enumerate().map(|(late_bound_idx, param)| { let arg = ResolvedArg::late(initial_bound_vars + late_bound_idx as u32, param); bound_vars.insert(param.def_id, arg); - late_arg_as_bound_arg(self.tcx, param) + late_arg_as_bound_arg(param) }); binders.extend(binders_iter); @@ -485,7 +479,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { .map(|(late_bound_idx, param)| { ( (param.def_id, ResolvedArg::late(late_bound_idx as u32, param)), - late_arg_as_bound_arg(self.tcx, param), + late_arg_as_bound_arg(param), ) }) .unzip(); @@ -718,7 +712,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { .map(|(late_bound_idx, param)| { ( (param.def_id, ResolvedArg::late(late_bound_idx as u32, param)), - late_arg_as_bound_arg(self.tcx, param), + late_arg_as_bound_arg(param), ) }) .unzip(); @@ -748,7 +742,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { .map(|(late_bound_idx, param)| { ( (param.def_id, ResolvedArg::late(late_bound_idx as u32, param)), - late_arg_as_bound_arg(self.tcx, param), + late_arg_as_bound_arg(param), ) }) .unzip(); @@ -957,7 +951,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { .map(|(late_bound_idx, param)| { ( (param.def_id, ResolvedArg::late(late_bound_idx as u32, param)), - late_arg_as_bound_arg(self.tcx, param), + late_arg_as_bound_arg(param), ) }) .unzip(); @@ -1171,7 +1165,7 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> { matches!(param.kind, GenericParamKind::Lifetime { .. }) && self.tcx.is_late_bound(param.hir_id) }) - .map(|param| late_arg_as_bound_arg(self.tcx, param)) + .map(|param| late_arg_as_bound_arg(param)) .collect(); self.record_late_bound_vars(hir_id, binders); let scope = Scope::Binder { diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs index d17986d45d2..4784cfb5235 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs @@ -12,7 +12,7 @@ use rustc_middle::ty::{ self as ty, IsSuggestable, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitableExt, TypeVisitor, Upcast, }; -use rustc_span::{ErrorGuaranteed, Ident, Span, Symbol, kw, sym}; +use rustc_span::{ErrorGuaranteed, Ident, Span, kw, sym}; use rustc_trait_selection::traits; use smallvec::SmallVec; use tracing::{debug, instrument}; @@ -888,7 +888,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { ty::INNERMOST, ty::BoundRegion { var: ty::BoundVar::from_usize(num_bound_vars), - kind: ty::BoundRegionKind::Named(param.def_id, param.name), + kind: ty::BoundRegionKind::Named(param.def_id), }, ) .into(), @@ -1006,12 +1006,12 @@ fn check_assoc_const_binding_type<'tcx>( ty_note, })); } - for (var_def_id, var_name) in collector.vars { + for var_def_id in collector.vars { guar.get_or_insert(cx.dcx().emit_err( crate::errors::EscapingBoundVarInTyOfAssocConstBinding { span: assoc_const.span, assoc_const, - var_name, + var_name: cx.tcx().item_name(var_def_id), var_def_kind: tcx.def_descr(var_def_id), var_defined_here_label: tcx.def_ident_span(var_def_id).unwrap(), ty_note, @@ -1026,7 +1026,7 @@ fn check_assoc_const_binding_type<'tcx>( struct GenericParamAndBoundVarCollector<'a, 'tcx> { cx: &'a dyn HirTyLowerer<'tcx>, params: FxIndexSet<u32>, - vars: FxIndexSet<(DefId, Symbol)>, + vars: FxIndexSet<DefId>, depth: ty::DebruijnIndex, } @@ -1050,7 +1050,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for GenericParamAndBoundVarCollector<'_, 't } ty::Bound(db, bt) if *db >= self.depth => { self.vars.insert(match bt.kind { - ty::BoundTyKind::Param(def_id, name) => (def_id, name), + ty::BoundTyKind::Param(def_id) => def_id, ty::BoundTyKind::Anon => { let reported = self .cx @@ -1073,7 +1073,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for GenericParamAndBoundVarCollector<'_, 't } ty::ReBound(db, br) if db >= self.depth => { self.vars.insert(match br.kind { - ty::BoundRegionKind::Named(def_id, name) => (def_id, name), + ty::BoundRegionKind::Named(def_id) => def_id, ty::BoundRegionKind::Anon | ty::BoundRegionKind::ClosureEnv => { let guar = self .cx @@ -1081,6 +1081,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for GenericParamAndBoundVarCollector<'_, 't .delayed_bug(format!("unexpected bound region kind: {:?}", br.kind)); return ControlFlow::Break(guar); } + ty::BoundRegionKind::NamedAnon(_) => bug!("only used for pretty printing"), }); } _ => {} diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs index e13daabeb50..434375060df 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs @@ -392,16 +392,14 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { #[instrument(level = "debug", skip(self), ret)] pub fn lower_resolved_lifetime(&self, resolved: rbv::ResolvedArg) -> ty::Region<'tcx> { let tcx = self.tcx(); - let lifetime_name = |def_id| tcx.hir_name(tcx.local_def_id_to_hir_id(def_id)); match resolved { rbv::ResolvedArg::StaticLifetime => tcx.lifetimes.re_static, rbv::ResolvedArg::LateBound(debruijn, index, def_id) => { - let name = lifetime_name(def_id); let br = ty::BoundRegion { var: ty::BoundVar::from_u32(index), - kind: ty::BoundRegionKind::Named(def_id.to_def_id(), name), + kind: ty::BoundRegionKind::Named(def_id.to_def_id()), }; ty::Region::new_bound(tcx, debruijn, br) } @@ -415,11 +413,10 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { } rbv::ResolvedArg::Free(scope, id) => { - let name = lifetime_name(id); ty::Region::new_late_param( tcx, scope.to_def_id(), - ty::LateParamRegionKind::Named(id.to_def_id(), name), + ty::LateParamRegionKind::Named(id.to_def_id()), ) // (*) -- not late-bound, won't change @@ -2070,10 +2067,9 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { let tcx = self.tcx(); match tcx.named_bound_var(hir_id) { Some(rbv::ResolvedArg::LateBound(debruijn, index, def_id)) => { - let name = tcx.item_name(def_id.to_def_id()); let br = ty::BoundTy { var: ty::BoundVar::from_u32(index), - kind: ty::BoundTyKind::Param(def_id.to_def_id(), name), + kind: ty::BoundTyKind::Param(def_id.to_def_id()), }; Ty::new_bound(tcx, debruijn, br) } @@ -2749,18 +2745,15 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { generate_err: impl Fn(&str) -> Diag<'cx>, ) { for br in referenced_regions.difference(&constrained_regions) { - let br_name = match *br { - ty::BoundRegionKind::Named(_, kw::UnderscoreLifetime) - | ty::BoundRegionKind::Anon - | ty::BoundRegionKind::ClosureEnv => "an anonymous lifetime".to_string(), - ty::BoundRegionKind::Named(_, name) => format!("lifetime `{name}`"), + let br_name = if let Some(name) = br.get_name(self.tcx()) { + format!("lifetime `{name}`") + } else { + "an anonymous lifetime".to_string() }; let mut err = generate_err(&br_name); - if let ty::BoundRegionKind::Named(_, kw::UnderscoreLifetime) - | ty::BoundRegionKind::Anon = *br - { + if !br.is_named(self.tcx()) { // The only way for an anonymous lifetime to wind up // in the return type but **also** be unconstrained is // if it only appears in "associated types" in the diff --git a/compiler/rustc_index/src/bit_set.rs b/compiler/rustc_index/src/bit_set.rs index a4885aabe1f..645d95b1dba 100644 --- a/compiler/rustc_index/src/bit_set.rs +++ b/compiler/rustc_index/src/bit_set.rs @@ -1744,13 +1744,13 @@ impl<R: Idx, C: Idx> SparseBitMatrix<R, C> { #[inline] fn num_words<T: Idx>(domain_size: T) -> usize { - (domain_size.index() + WORD_BITS - 1) / WORD_BITS + domain_size.index().div_ceil(WORD_BITS) } #[inline] fn num_chunks<T: Idx>(domain_size: T) -> usize { assert!(domain_size.index() > 0); - (domain_size.index() + CHUNK_BITS - 1) / CHUNK_BITS + domain_size.index().div_ceil(CHUNK_BITS) } #[inline] diff --git a/compiler/rustc_infer/src/infer/region_constraints/mod.rs b/compiler/rustc_infer/src/infer/region_constraints/mod.rs index f4cb73685d5..a1744b4df80 100644 --- a/compiler/rustc_infer/src/infer/region_constraints/mod.rs +++ b/compiler/rustc_infer/src/infer/region_constraints/mod.rs @@ -655,7 +655,7 @@ impl<'tcx> fmt::Display for GenericKind<'tcx> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { GenericKind::Param(ref p) => write!(f, "{p}"), - GenericKind::Placeholder(ref p) => write!(f, "{p:?}"), + GenericKind::Placeholder(ref p) => write!(f, "{p}"), GenericKind::Alias(ref p) => write!(f, "{p}"), } } diff --git a/compiler/rustc_lint/src/impl_trait_overcaptures.rs b/compiler/rustc_lint/src/impl_trait_overcaptures.rs index aa6f36a67f0..c17281deff4 100644 --- a/compiler/rustc_lint/src/impl_trait_overcaptures.rs +++ b/compiler/rustc_lint/src/impl_trait_overcaptures.rs @@ -136,7 +136,7 @@ enum ParamKind { // Early-bound var. Early(Symbol, u32), // Late-bound var on function, not within a binder. We can capture these. - Free(DefId, Symbol), + Free(DefId), // Late-bound var in a binder. We can't capture these yet. Late, } @@ -156,12 +156,11 @@ fn check_fn(tcx: TyCtxt<'_>, parent_def_id: LocalDefId) { } for bound_var in sig.bound_vars() { - let ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id, name)) = bound_var - else { + let ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id)) = bound_var else { span_bug!(tcx.def_span(parent_def_id), "unexpected non-lifetime binder on fn sig"); }; - in_scope_parameters.insert(def_id, ParamKind::Free(def_id, name)); + in_scope_parameters.insert(def_id, ParamKind::Free(def_id)); } let sig = tcx.liberate_late_bound_regions(parent_def_id.to_def_id(), sig); @@ -215,8 +214,8 @@ where for arg in t.bound_vars() { let arg: ty::BoundVariableKind = arg; match arg { - ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id, ..)) - | ty::BoundVariableKind::Ty(ty::BoundTyKind::Param(def_id, _)) => { + ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id)) + | ty::BoundVariableKind::Ty(ty::BoundTyKind::Param(def_id)) => { added.push(def_id); let unique = self.in_scope_parameters.insert(def_id, ParamKind::Late); assert_eq!(unique, None); @@ -316,10 +315,10 @@ where self.tcx, ty::EarlyParamRegion { name, index }, ), - ParamKind::Free(def_id, name) => ty::Region::new_late_param( + ParamKind::Free(def_id) => ty::Region::new_late_param( self.tcx, self.parent_def_id.to_def_id(), - ty::LateParamRegionKind::Named(def_id, name), + ty::LateParamRegionKind::Named(def_id), ), // Totally ignore late bound args from binders. ParamKind::Late => return true, @@ -463,13 +462,10 @@ fn extract_def_id_from_arg<'tcx>( match arg.kind() { ty::GenericArgKind::Lifetime(re) => match re.kind() { ty::ReEarlyParam(ebr) => generics.region_param(ebr, tcx).def_id, - ty::ReBound( - _, - ty::BoundRegion { kind: ty::BoundRegionKind::Named(def_id, ..), .. }, - ) + ty::ReBound(_, ty::BoundRegion { kind: ty::BoundRegionKind::Named(def_id), .. }) | ty::ReLateParam(ty::LateParamRegion { scope: _, - kind: ty::LateParamRegionKind::Named(def_id, ..), + kind: ty::LateParamRegionKind::Named(def_id), }) => def_id, _ => unreachable!(), }, @@ -532,13 +528,10 @@ impl<'tcx> TypeRelation<TyCtxt<'tcx>> for FunctionalVariances<'tcx> { ) -> RelateResult<'tcx, ty::Region<'tcx>> { let def_id = match a.kind() { ty::ReEarlyParam(ebr) => self.generics.region_param(ebr, self.tcx).def_id, - ty::ReBound( - _, - ty::BoundRegion { kind: ty::BoundRegionKind::Named(def_id, ..), .. }, - ) + ty::ReBound(_, ty::BoundRegion { kind: ty::BoundRegionKind::Named(def_id), .. }) | ty::ReLateParam(ty::LateParamRegion { scope: _, - kind: ty::LateParamRegionKind::Named(def_id, ..), + kind: ty::LateParamRegionKind::Named(def_id), }) => def_id, _ => { return Ok(a); diff --git a/compiler/rustc_lint/src/map_unit_fn.rs b/compiler/rustc_lint/src/map_unit_fn.rs index 3b27e456136..af509cb786d 100644 --- a/compiler/rustc_lint/src/map_unit_fn.rs +++ b/compiler/rustc_lint/src/map_unit_fn.rs @@ -1,5 +1,4 @@ use rustc_hir::{Expr, ExprKind, HirId, Stmt, StmtKind}; -use rustc_middle::query::Key; use rustc_middle::ty::{self, Ty}; use rustc_session::{declare_lint, declare_lint_pass}; @@ -69,7 +68,7 @@ impl<'tcx> LateLintPass<'tcx> for MapUnitFn { .span_of_impl(*id) .unwrap_or(default_span), argument_label: args[0].span, - map_label: arg_ty.default_span(cx.tcx), + map_label: span, suggestion: path.ident.span, replace: "for_each".to_string(), }, @@ -88,7 +87,7 @@ impl<'tcx> LateLintPass<'tcx> for MapUnitFn { .span_of_impl(*id) .unwrap_or(default_span), argument_label: args[0].span, - map_label: arg_ty.default_span(cx.tcx), + map_label: span, suggestion: path.ident.span, replace: "for_each".to_string(), }, diff --git a/compiler/rustc_lint/src/nonstandard_style.rs b/compiler/rustc_lint/src/nonstandard_style.rs index 97e627f2eb2..ad7686b3e5b 100644 --- a/compiler/rustc_lint/src/nonstandard_style.rs +++ b/compiler/rustc_lint/src/nonstandard_style.rs @@ -168,7 +168,7 @@ impl EarlyLintPass for NonCamelCaseTypes { fn check_item(&mut self, cx: &EarlyContext<'_>, it: &ast::Item) { let has_repr_c = matches!( AttributeParser::parse_limited(cx.sess(), &it.attrs, sym::repr, it.span, it.id), - Some(Attribute::Parsed(AttributeKind::Repr(r))) if r.iter().any(|(r, _)| r == &ReprAttr::ReprC) + Some(Attribute::Parsed(AttributeKind::Repr { reprs, ..})) if reprs.iter().any(|(r, _)| r == &ReprAttr::ReprC) ); if has_repr_c { diff --git a/compiler/rustc_macros/src/print_attribute.rs b/compiler/rustc_macros/src/print_attribute.rs index 42d94e72ee9..9023520c750 100644 --- a/compiler/rustc_macros/src/print_attribute.rs +++ b/compiler/rustc_macros/src/print_attribute.rs @@ -21,7 +21,8 @@ fn print_fields(name: &Ident, fields: &Fields) -> (TokenStream, TokenStream, Tok __p.word_space(","); } __p.word(#string_name); - __p.word_space(":"); + __p.word(":"); + __p.nbsp(); __printed_anything = true; } #name.print_attribute(__p); diff --git a/compiler/rustc_middle/src/middle/region.rs b/compiler/rustc_middle/src/middle/region.rs index 92eab59dd02..0f5b63f5c1d 100644 --- a/compiler/rustc_middle/src/middle/region.rs +++ b/compiler/rustc_middle/src/middle/region.rs @@ -7,7 +7,6 @@ //! [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/borrow_check.html use std::fmt; -use std::ops::Deref; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::unord::UnordMap; @@ -228,82 +227,6 @@ pub struct ScopeTree { /// This information is used later for linting to identify locals and /// temporary values that will receive backwards-incompatible drop orders. pub backwards_incompatible_scope: UnordMap<hir::ItemLocalId, Scope>, - - /// If there are any `yield` nested within a scope, this map - /// stores the `Span` of the last one and its index in the - /// postorder of the Visitor traversal on the HIR. - /// - /// HIR Visitor postorder indexes might seem like a peculiar - /// thing to care about. but it turns out that HIR bindings - /// and the temporary results of HIR expressions are never - /// storage-live at the end of HIR nodes with postorder indexes - /// lower than theirs, and therefore don't need to be suspended - /// at yield-points at these indexes. - /// - /// For an example, suppose we have some code such as: - /// ```rust,ignore (example) - /// foo(f(), yield y, bar(g())) - /// ``` - /// - /// With the HIR tree (calls numbered for expository purposes) - /// - /// ```text - /// Call#0(foo, [Call#1(f), Yield(y), Call#2(bar, Call#3(g))]) - /// ``` - /// - /// Obviously, the result of `f()` was created before the yield - /// (and therefore needs to be kept valid over the yield) while - /// the result of `g()` occurs after the yield (and therefore - /// doesn't). If we want to infer that, we can look at the - /// postorder traversal: - /// ```plain,ignore - /// `foo` `f` Call#1 `y` Yield `bar` `g` Call#3 Call#2 Call#0 - /// ``` - /// - /// In which we can easily see that `Call#1` occurs before the yield, - /// and `Call#3` after it. - /// - /// To see that this method works, consider: - /// - /// Let `D` be our binding/temporary and `U` be our other HIR node, with - /// `HIR-postorder(U) < HIR-postorder(D)`. Suppose, as in our example, - /// U is the yield and D is one of the calls. - /// Let's show that `D` is storage-dead at `U`. - /// - /// Remember that storage-live/storage-dead refers to the state of - /// the *storage*, and does not consider moves/drop flags. - /// - /// Then: - /// - /// 1. From the ordering guarantee of HIR visitors (see - /// `rustc_hir::intravisit`), `D` does not dominate `U`. - /// - /// 2. Therefore, `D` is *potentially* storage-dead at `U` (because - /// we might visit `U` without ever getting to `D`). - /// - /// 3. However, we guarantee that at each HIR point, each - /// binding/temporary is always either always storage-live - /// or always storage-dead. This is what is being guaranteed - /// by `terminating_scopes` including all blocks where the - /// count of executions is not guaranteed. - /// - /// 4. By `2.` and `3.`, `D` is *statically* storage-dead at `U`, - /// QED. - /// - /// This property ought to not on (3) in an essential way -- it - /// is probably still correct even if we have "unrestricted" terminating - /// scopes. However, why use the complicated proof when a simple one - /// works? - /// - /// A subtle thing: `box` expressions, such as `box (&x, yield 2, &y)`. It - /// might seem that a `box` expression creates a `Box<T>` temporary - /// when it *starts* executing, at `HIR-preorder(BOX-EXPR)`. That might - /// be true in the MIR desugaring, but it is not important in the semantics. - /// - /// The reason is that semantically, until the `box` expression returns, - /// the values are still owned by their containing expressions. So - /// we'll see that `&x`. - pub yield_in_scope: UnordMap<Scope, Vec<YieldData>>, } /// See the `rvalue_candidates` field for more information on rvalue @@ -316,15 +239,6 @@ pub struct RvalueCandidate { pub lifetime: Option<Scope>, } -#[derive(Debug, Copy, Clone, HashStable)] -pub struct YieldData { - /// The `Span` of the yield. - pub span: Span, - /// The number of expressions and patterns appearing before the `yield` in the body, plus one. - pub expr_and_pat_count: usize, - pub source: hir::YieldSource, -} - impl ScopeTree { pub fn record_scope_parent(&mut self, child: Scope, parent: Option<Scope>) { debug!("{:?}.parent = {:?}", child, parent); @@ -380,10 +294,4 @@ impl ScopeTree { true } - - /// Checks whether the given scope contains a `yield`. If so, - /// returns `Some(YieldData)`. If not, returns `None`. - pub fn yield_in_scope(&self, scope: Scope) -> Option<&[YieldData]> { - self.yield_in_scope.get(&scope).map(Deref::deref) - } } diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index e8b15b76fd8..98b2ce01d89 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -3279,10 +3279,7 @@ impl<'tcx> TyCtxt<'tcx> { return ty::Region::new_late_param( self, new_parent.to_def_id(), - ty::LateParamRegionKind::Named( - lbv.to_def_id(), - self.item_name(lbv.to_def_id()), - ), + ty::LateParamRegionKind::Named(lbv.to_def_id()), ); } resolve_bound_vars::ResolvedArg::Error(guar) => { diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index a92d6fe3916..b780b1c5776 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -474,7 +474,7 @@ impl<'tcx> rustc_type_ir::Flags for Ty<'tcx> { impl EarlyParamRegion { /// Does this early bound region have a name? Early bound regions normally /// always have names except when using anonymous lifetimes (`'_`). - pub fn has_name(&self) -> bool { + pub fn is_named(&self) -> bool { self.name != kw::UnderscoreLifetime } } @@ -1525,7 +1525,8 @@ impl<'tcx> TyCtxt<'tcx> { field_shuffle_seed ^= user_seed; } - if let Some(reprs) = attr::find_attr!(self.get_all_attrs(did), AttributeKind::Repr(r) => r) + if let Some(reprs) = + attr::find_attr!(self.get_all_attrs(did), AttributeKind::Repr { reprs, .. } => reprs) { for (r, _) in reprs { flags.insert(match *r { @@ -1566,10 +1567,6 @@ impl<'tcx> TyCtxt<'tcx> { max_align = max_align.max(Some(align)); ReprFlags::empty() } - attr::ReprEmpty => { - /* skip these, they're just for diagnostics */ - ReprFlags::empty() - } }); } } diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index b4c4f48a0a6..1dba4a7b040 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -11,7 +11,7 @@ use rustc_data_structures::unord::UnordMap; use rustc_hir as hir; use rustc_hir::LangItem; use rustc_hir::def::{self, CtorKind, DefKind, Namespace}; -use rustc_hir::def_id::{CRATE_DEF_ID, DefIdMap, DefIdSet, LOCAL_CRATE, ModDefId}; +use rustc_hir::def_id::{DefIdMap, DefIdSet, LOCAL_CRATE, ModDefId}; use rustc_hir::definitions::{DefKey, DefPathDataName}; use rustc_macros::{Lift, extension}; use rustc_session::Limit; @@ -795,9 +795,9 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { ty::BoundTyKind::Anon => { rustc_type_ir::debug_bound_var(self, debruijn, bound_ty.var)? } - ty::BoundTyKind::Param(_, s) => match self.should_print_verbose() { + ty::BoundTyKind::Param(def_id) => match self.should_print_verbose() { true => p!(write("{:?}", ty.kind())), - false => p!(write("{s}")), + false => p!(write("{}", self.tcx().item_name(def_id))), }, }, ty::Adt(def, args) => { @@ -822,13 +822,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { ty::Alias(ty::Projection | ty::Inherent | ty::Free, ref data) => { p!(print(data)) } - ty::Placeholder(placeholder) => match placeholder.bound.kind { - ty::BoundTyKind::Anon => p!(write("{placeholder:?}")), - ty::BoundTyKind::Param(_, name) => match self.should_print_verbose() { - true => p!(write("{:?}", ty.kind())), - false => p!(write("{name}")), - }, - }, + ty::Placeholder(placeholder) => p!(print(placeholder)), ty::Alias(ty::Opaque, ty::AliasTy { def_id, args, .. }) => { // We use verbose printing in 'NO_QUERIES' mode, to // avoid needing to call `predicates_of`. This should @@ -2551,14 +2545,14 @@ impl<'tcx> PrettyPrinter<'tcx> for FmtPrinter<'_, 'tcx> { let identify_regions = self.tcx.sess.opts.unstable_opts.identify_regions; match region.kind() { - ty::ReEarlyParam(ref data) => data.has_name(), + ty::ReEarlyParam(ref data) => data.is_named(), - ty::ReLateParam(ty::LateParamRegion { kind, .. }) => kind.is_named(), + ty::ReLateParam(ty::LateParamRegion { kind, .. }) => kind.is_named(self.tcx), ty::ReBound(_, ty::BoundRegion { kind: br, .. }) | ty::RePlaceholder(ty::Placeholder { bound: ty::BoundRegion { kind: br, .. }, .. }) => { - if br.is_named() { + if br.is_named(self.tcx) { return true; } @@ -2626,7 +2620,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { return Ok(()); } ty::ReLateParam(ty::LateParamRegion { kind, .. }) => { - if let Some(name) = kind.get_name() { + if let Some(name) = kind.get_name(self.tcx) { p!(write("{}", name)); return Ok(()); } @@ -2635,9 +2629,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { | ty::RePlaceholder(ty::Placeholder { bound: ty::BoundRegion { kind: br, .. }, .. }) => { - if let ty::BoundRegionKind::Named(_, name) = br - && br.is_named() - { + if let Some(name) = br.get_name(self.tcx) { p!(write("{}", name)); return Ok(()); } @@ -2844,55 +2836,22 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { let mut name = |lifetime_idx: Option<ty::DebruijnIndex>, binder_level_idx: ty::DebruijnIndex, br: ty::BoundRegion| { - let (name, kind) = match br.kind { - ty::BoundRegionKind::Anon | ty::BoundRegionKind::ClosureEnv => { - let name = next_name(self); - - if let Some(lt_idx) = lifetime_idx { - if lt_idx > binder_level_idx { - let kind = - ty::BoundRegionKind::Named(CRATE_DEF_ID.to_def_id(), name); - return ty::Region::new_bound( - tcx, - ty::INNERMOST, - ty::BoundRegion { var: br.var, kind }, - ); - } - } - - (name, ty::BoundRegionKind::Named(CRATE_DEF_ID.to_def_id(), name)) - } - ty::BoundRegionKind::Named(def_id, kw::UnderscoreLifetime) => { - let name = next_name(self); - - if let Some(lt_idx) = lifetime_idx { - if lt_idx > binder_level_idx { - let kind = ty::BoundRegionKind::Named(def_id, name); - return ty::Region::new_bound( - tcx, - ty::INNERMOST, - ty::BoundRegion { var: br.var, kind }, - ); - } - } - - (name, ty::BoundRegionKind::Named(def_id, name)) - } - ty::BoundRegionKind::Named(_, name) => { - if let Some(lt_idx) = lifetime_idx { - if lt_idx > binder_level_idx { - let kind = br.kind; - return ty::Region::new_bound( - tcx, - ty::INNERMOST, - ty::BoundRegion { var: br.var, kind }, - ); - } - } + let (name, kind) = if let Some(name) = br.kind.get_name(tcx) { + (name, br.kind) + } else { + let name = next_name(self); + (name, ty::BoundRegionKind::NamedAnon(name)) + }; - (name, br.kind) + if let Some(lt_idx) = lifetime_idx { + if lt_idx > binder_level_idx { + return ty::Region::new_bound( + tcx, + ty::INNERMOST, + ty::BoundRegion { var: br.var, kind }, + ); } - }; + } // Unconditionally render `unsafe<>`. if !trim_path || mode == WrapBinderMode::Unsafe { @@ -2960,13 +2919,15 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { T: TypeFoldable<TyCtxt<'tcx>>, { struct RegionNameCollector<'tcx> { + tcx: TyCtxt<'tcx>, used_region_names: FxHashSet<Symbol>, type_collector: SsoHashSet<Ty<'tcx>>, } impl<'tcx> RegionNameCollector<'tcx> { - fn new() -> Self { + fn new(tcx: TyCtxt<'tcx>) -> Self { RegionNameCollector { + tcx, used_region_names: Default::default(), type_collector: SsoHashSet::new(), } @@ -2980,7 +2941,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { // Collect all named lifetimes. These allow us to prevent duplication // of already existing lifetime names when introducing names for // anonymous late-bound regions. - if let Some(name) = r.get_name() { + if let Some(name) = r.get_name(self.tcx) { self.used_region_names.insert(name); } } @@ -2995,7 +2956,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { } } - let mut collector = RegionNameCollector::new(); + let mut collector = RegionNameCollector::new(self.tcx()); value.visit_with(&mut collector); self.used_region_names = collector.used_region_names; self.region_index = 0; @@ -3406,6 +3367,16 @@ define_print_and_forward_display! { p!(write("{}", self.name)) } + ty::PlaceholderType { + match self.bound.kind { + ty::BoundTyKind::Anon => p!(write("{self:?}")), + ty::BoundTyKind::Param(def_id) => match cx.should_print_verbose() { + true => p!(write("{self:?}")), + false => p!(write("{}", cx.tcx().item_name(def_id))), + }, + } + } + ty::ParamConst { p!(write("{}", self.name)) } diff --git a/compiler/rustc_middle/src/ty/region.rs b/compiler/rustc_middle/src/ty/region.rs index cc25cd16567..51be93d9a72 100644 --- a/compiler/rustc_middle/src/ty/region.rs +++ b/compiler/rustc_middle/src/ty/region.rs @@ -163,37 +163,33 @@ impl<'tcx> Region<'tcx> { *self.0.0 } - pub fn get_name(self) -> Option<Symbol> { - if self.has_name() { - match self.kind() { - ty::ReEarlyParam(ebr) => Some(ebr.name), - ty::ReBound(_, br) => br.kind.get_name(), - ty::ReLateParam(fr) => fr.kind.get_name(), - ty::ReStatic => Some(kw::StaticLifetime), - ty::RePlaceholder(placeholder) => placeholder.bound.kind.get_name(), - _ => None, - } - } else { - None + pub fn get_name(self, tcx: TyCtxt<'tcx>) -> Option<Symbol> { + match self.kind() { + ty::ReEarlyParam(ebr) => ebr.is_named().then_some(ebr.name), + ty::ReBound(_, br) => br.kind.get_name(tcx), + ty::ReLateParam(fr) => fr.kind.get_name(tcx), + ty::ReStatic => Some(kw::StaticLifetime), + ty::RePlaceholder(placeholder) => placeholder.bound.kind.get_name(tcx), + _ => None, } } - pub fn get_name_or_anon(self) -> Symbol { - match self.get_name() { + pub fn get_name_or_anon(self, tcx: TyCtxt<'tcx>) -> Symbol { + match self.get_name(tcx) { Some(name) => name, None => sym::anon, } } /// Is this region named by the user? - pub fn has_name(self) -> bool { + pub fn is_named(self, tcx: TyCtxt<'tcx>) -> bool { match self.kind() { - ty::ReEarlyParam(ebr) => ebr.has_name(), - ty::ReBound(_, br) => br.kind.is_named(), - ty::ReLateParam(fr) => fr.kind.is_named(), + ty::ReEarlyParam(ebr) => ebr.is_named(), + ty::ReBound(_, br) => br.kind.is_named(tcx), + ty::ReLateParam(fr) => fr.kind.is_named(tcx), ty::ReStatic => true, ty::ReVar(..) => false, - ty::RePlaceholder(placeholder) => placeholder.bound.kind.is_named(), + ty::RePlaceholder(placeholder) => placeholder.bound.kind.is_named(tcx), ty::ReErased => false, ty::ReError(_) => false, } @@ -313,7 +309,7 @@ impl<'tcx> Region<'tcx> { Some(tcx.generics_of(binding_item).region_param(ebr, tcx).def_id) } ty::ReLateParam(ty::LateParamRegion { - kind: ty::LateParamRegionKind::Named(def_id, _), + kind: ty::LateParamRegionKind::Named(def_id), .. }) => Some(def_id), _ => None, @@ -371,11 +367,13 @@ pub enum LateParamRegionKind { /// sake of diagnostics in `FnCtxt::sig_of_closure_with_expectation`. Anon(u32), - /// Named region parameters for functions (a in &'a T) + /// An anonymous region parameter with a `Symbol` name. /// - /// The `DefId` is needed to distinguish free regions in - /// the event of shadowing. - Named(DefId, Symbol), + /// Used to give late-bound regions names for things like pretty printing. + NamedAnon(u32, Symbol), + + /// Late-bound regions that appear in the AST. + Named(DefId), /// Anonymous region for the implicit env pointer parameter /// to a closure @@ -386,32 +384,30 @@ impl LateParamRegionKind { pub fn from_bound(var: BoundVar, br: BoundRegionKind) -> LateParamRegionKind { match br { BoundRegionKind::Anon => LateParamRegionKind::Anon(var.as_u32()), - BoundRegionKind::Named(def_id, name) => LateParamRegionKind::Named(def_id, name), + BoundRegionKind::Named(def_id) => LateParamRegionKind::Named(def_id), BoundRegionKind::ClosureEnv => LateParamRegionKind::ClosureEnv, + BoundRegionKind::NamedAnon(name) => LateParamRegionKind::NamedAnon(var.as_u32(), name), } } - pub fn is_named(&self) -> bool { - match *self { - LateParamRegionKind::Named(_, name) => name != kw::UnderscoreLifetime, - _ => false, - } + pub fn is_named(&self, tcx: TyCtxt<'_>) -> bool { + self.get_name(tcx).is_some() } - pub fn get_name(&self) -> Option<Symbol> { - if self.is_named() { - match *self { - LateParamRegionKind::Named(_, name) => return Some(name), - _ => unreachable!(), + pub fn get_name(&self, tcx: TyCtxt<'_>) -> Option<Symbol> { + match *self { + LateParamRegionKind::Named(def_id) => { + let name = tcx.item_name(def_id); + if name != kw::UnderscoreLifetime { Some(name) } else { None } } + LateParamRegionKind::NamedAnon(_, name) => Some(name), + _ => None, } - - None } pub fn get_id(&self) -> Option<DefId> { match *self { - LateParamRegionKind::Named(id, _) => Some(id), + LateParamRegionKind::Named(id) => Some(id), _ => None, } } @@ -423,11 +419,13 @@ pub enum BoundRegionKind { /// An anonymous region parameter for a given fn (&T) Anon, - /// Named region parameters for functions (a in &'a T) + /// An anonymous region parameter with a `Symbol` name. /// - /// The `DefId` is needed to distinguish free regions in - /// the event of shadowing. - Named(DefId, Symbol), + /// Used to give late-bound regions names for things like pretty printing. + NamedAnon(Symbol), + + /// Late-bound regions that appear in the AST. + Named(DefId), /// Anonymous region for the implicit env pointer parameter /// to a closure @@ -456,35 +454,35 @@ impl core::fmt::Debug for BoundRegion { match self.kind { BoundRegionKind::Anon => write!(f, "{:?}", self.var), BoundRegionKind::ClosureEnv => write!(f, "{:?}.Env", self.var), - BoundRegionKind::Named(def, symbol) => { - write!(f, "{:?}.Named({:?}, {:?})", self.var, def, symbol) + BoundRegionKind::Named(def) => { + write!(f, "{:?}.Named({:?})", self.var, def) + } + BoundRegionKind::NamedAnon(symbol) => { + write!(f, "{:?}.NamedAnon({:?})", self.var, symbol) } } } } impl BoundRegionKind { - pub fn is_named(&self) -> bool { - match *self { - BoundRegionKind::Named(_, name) => name != kw::UnderscoreLifetime, - _ => false, - } + pub fn is_named(&self, tcx: TyCtxt<'_>) -> bool { + self.get_name(tcx).is_some() } - pub fn get_name(&self) -> Option<Symbol> { - if self.is_named() { - match *self { - BoundRegionKind::Named(_, name) => return Some(name), - _ => unreachable!(), + pub fn get_name(&self, tcx: TyCtxt<'_>) -> Option<Symbol> { + match *self { + BoundRegionKind::Named(def_id) => { + let name = tcx.item_name(def_id); + if name != kw::UnderscoreLifetime { Some(name) } else { None } } + BoundRegionKind::NamedAnon(name) => Some(name), + _ => None, } - - None } pub fn get_id(&self) -> Option<DefId> { match *self { - BoundRegionKind::Named(id, _) => Some(id), + BoundRegionKind::Named(id) => Some(id), _ => None, } } diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 1214731a3b2..af9c98bd87d 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -69,12 +69,11 @@ impl fmt::Debug for ty::BoundRegionKind { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { ty::BoundRegionKind::Anon => write!(f, "BrAnon"), - ty::BoundRegionKind::Named(did, name) => { - if did.is_crate_root() { - write!(f, "BrNamed({name})") - } else { - write!(f, "BrNamed({did:?}, {name})") - } + ty::BoundRegionKind::NamedAnon(name) => { + write!(f, "BrNamedAnon({name})") + } + ty::BoundRegionKind::Named(did) => { + write!(f, "BrNamed({did:?})") } ty::BoundRegionKind::ClosureEnv => write!(f, "BrEnv"), } @@ -91,12 +90,11 @@ impl fmt::Debug for ty::LateParamRegionKind { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { ty::LateParamRegionKind::Anon(idx) => write!(f, "LateAnon({idx})"), - ty::LateParamRegionKind::Named(did, name) => { - if did.is_crate_root() { - write!(f, "LateNamed({name})") - } else { - write!(f, "LateNamed({did:?}, {name})") - } + ty::LateParamRegionKind::NamedAnon(idx, name) => { + write!(f, "LateNamedAnon({idx:?}, {name})") + } + ty::LateParamRegionKind::Named(did) => { + write!(f, "LateNamed({did:?})") } ty::LateParamRegionKind::ClosureEnv => write!(f, "LateEnv"), } @@ -185,7 +183,7 @@ impl fmt::Debug for ty::BoundTy { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self.kind { ty::BoundTyKind::Anon => write!(f, "{:?}", self.var), - ty::BoundTyKind::Param(_, sym) => write!(f, "{sym:?}"), + ty::BoundTyKind::Param(def_id) => write!(f, "{def_id:?}"), } } } @@ -274,7 +272,6 @@ TrivialTypeTraversalImpls! { crate::ty::BoundVar, crate::ty::InferConst, crate::ty::Placeholder<crate::ty::BoundRegion>, - crate::ty::Placeholder<crate::ty::BoundTy>, crate::ty::Placeholder<ty::BoundVar>, crate::ty::UserTypeAnnotationIndex, crate::ty::ValTree<'tcx>, @@ -305,6 +302,7 @@ TrivialTypeTraversalAndLiftImpls! { // tidy-alphabetical-start crate::ty::ParamConst, crate::ty::ParamTy, + crate::ty::Placeholder<crate::ty::BoundTy>, crate::ty::instance::ReifyReason, rustc_hir::def_id::DefId, // tidy-alphabetical-end diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 7a1890226c9..8bb3b3f1263 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -400,7 +400,7 @@ impl<'tcx> rustc_type_ir::inherent::BoundVarLike<TyCtxt<'tcx>> for BoundTy { #[derive(HashStable)] pub enum BoundTyKind { Anon, - Param(DefId, Symbol), + Param(DefId), } impl From<BoundVar> for BoundTy { @@ -2032,7 +2032,7 @@ mod size_asserts { use super::*; // tidy-alphabetical-start - static_assert_size!(ty::RegionKind<'_>, 24); + static_assert_size!(ty::RegionKind<'_>, 20); static_assert_size!(ty::TyKind<'_>, 24); // tidy-alphabetical-end } diff --git a/compiler/rustc_mir_build/src/builder/expr/as_rvalue.rs b/compiler/rustc_mir_build/src/builder/expr/as_rvalue.rs index 975226bb642..daf8fa5f19e 100644 --- a/compiler/rustc_mir_build/src/builder/expr/as_rvalue.rs +++ b/compiler/rustc_mir_build/src/builder/expr/as_rvalue.rs @@ -171,9 +171,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { this.diverge_from(block); block = success; - // The `Box<T>` temporary created here is not a part of the HIR, - // and therefore is not considered during coroutine auto-trait - // determination. See the comment about `box` at `yield_in_scope`. let result = this.local_decls.push(LocalDecl::new(expr.ty, expr_span)); this.cfg .push(block, Statement::new(source_info, StatementKind::StorageLive(result))); diff --git a/compiler/rustc_mir_transform/src/ssa.rs b/compiler/rustc_mir_transform/src/ssa.rs index 03b6f9b7ff3..d3b4b99e932 100644 --- a/compiler/rustc_mir_transform/src/ssa.rs +++ b/compiler/rustc_mir_transform/src/ssa.rs @@ -322,8 +322,8 @@ fn compute_copy_classes(ssa: &mut SsaLocals, body: &Body<'_>) { // visited before `local`, and we just have to copy the representing local. let head = copies[rhs]; - // Do not unify two borrowed locals. - if borrowed_classes.contains(local) && borrowed_classes.contains(head) { + // Do not unify borrowed locals. + if borrowed_classes.contains(local) || borrowed_classes.contains(head) { continue; } diff --git a/compiler/rustc_next_trait_solver/src/canonicalizer.rs b/compiler/rustc_next_trait_solver/src/canonicalizer.rs index 47ed9e87244..a418aa82100 100644 --- a/compiler/rustc_next_trait_solver/src/canonicalizer.rs +++ b/compiler/rustc_next_trait_solver/src/canonicalizer.rs @@ -1,5 +1,3 @@ -use std::cmp::Ordering; - use rustc_type_ir::data_structures::{HashMap, ensure_sufficient_stack}; use rustc_type_ir::inherent::*; use rustc_type_ir::solve::{Goal, QueryInput}; @@ -266,11 +264,15 @@ impl<'a, D: SolverDelegate<Interner = I>, I: Interner> Canonicalizer<'a, D, I> { // See the rustc-dev-guide section about how we deal with universes // during canonicalization in the new solver. match self.canonicalize_mode { - // We try to deduplicate as many query calls as possible and hide - // all information which should not matter for the solver. - // - // For this we compress universes as much as possible. - CanonicalizeMode::Input { .. } => {} + // All placeholders and vars are canonicalized in the root universe. + CanonicalizeMode::Input { .. } => { + debug_assert!( + var_kinds.iter().all(|var| var.universe() == ty::UniverseIndex::ROOT), + "expected all vars to be canonicalized in root universe: {var_kinds:#?}" + ); + let var_kinds = self.delegate.cx().mk_canonical_var_kinds(&var_kinds); + (ty::UniverseIndex::ROOT, var_kinds) + } // When canonicalizing a response we map a universes already entered // by the caller to the root universe and only return useful universe // information for placeholders and inference variables created inside @@ -288,113 +290,10 @@ impl<'a, D: SolverDelegate<Interner = I>, I: Interner> Canonicalizer<'a, D, I> { .map(|kind| kind.universe()) .max() .unwrap_or(ty::UniverseIndex::ROOT); - let var_kinds = self.delegate.cx().mk_canonical_var_kinds(&var_kinds); - return (max_universe, var_kinds); + (max_universe, var_kinds) } } - - // Given a `var_kinds` with existentials `En` and universals `Un` in - // universes `n`, this algorithm compresses them in place so that: - // - // - the new universe indices are as small as possible - // - we create a new universe if we would otherwise - // 1. put existentials from a different universe into the same one - // 2. put a placeholder in the same universe as an existential which cannot name it - // - // Let's walk through an example: - // - var_kinds: [E0, U1, E5, U2, E2, E6, U6], curr_compressed_uv: 0, next_orig_uv: 0 - // - var_kinds: [E0, U1, E5, U2, E2, E6, U6], curr_compressed_uv: 0, next_orig_uv: 1 - // - var_kinds: [E0, U1, E5, U2, E2, E6, U6], curr_compressed_uv: 1, next_orig_uv: 2 - // - var_kinds: [E0, U1, E5, U1, E1, E6, U6], curr_compressed_uv: 1, next_orig_uv: 5 - // - var_kinds: [E0, U1, E2, U1, E1, E6, U6], curr_compressed_uv: 2, next_orig_uv: 6 - // - var_kinds: [E0, U1, E1, U1, E1, E3, U3], curr_compressed_uv: 2, next_orig_uv: - - // - // This algorithm runs in `O(mn)` where `n` is the number of different universes and - // `m` the number of variables. This should be fine as both are expected to be small. - let mut curr_compressed_uv = ty::UniverseIndex::ROOT; - let mut existential_in_new_uv = None; - let mut next_orig_uv = Some(ty::UniverseIndex::ROOT); - while let Some(orig_uv) = next_orig_uv.take() { - let mut update_uv = |var: &mut CanonicalVarKind<I>, orig_uv, is_existential| { - let uv = var.universe(); - match uv.cmp(&orig_uv) { - Ordering::Less => (), // Already updated - Ordering::Equal => { - if is_existential { - if existential_in_new_uv.is_some_and(|uv| uv < orig_uv) { - // Condition 1. - // - // We already put an existential from a outer universe - // into the current compressed universe, so we need to - // create a new one. - curr_compressed_uv = curr_compressed_uv.next_universe(); - } - - // `curr_compressed_uv` will now contain an existential from - // `orig_uv`. Trying to canonicalizing an existential from - // a higher universe has to therefore use a new compressed - // universe. - existential_in_new_uv = Some(orig_uv); - } else if existential_in_new_uv.is_some() { - // Condition 2. - // - // `var` is a placeholder from a universe which is not nameable - // by an existential which we already put into the compressed - // universe `curr_compressed_uv`. We therefore have to create a - // new universe for `var`. - curr_compressed_uv = curr_compressed_uv.next_universe(); - existential_in_new_uv = None; - } - - *var = var.with_updated_universe(curr_compressed_uv); - } - Ordering::Greater => { - // We can ignore this variable in this iteration. We only look at - // universes which actually occur in the input for performance. - // - // For this we set `next_orig_uv` to the next smallest, not yet compressed, - // universe of the input. - if next_orig_uv.is_none_or(|curr_next_uv| uv.cannot_name(curr_next_uv)) { - next_orig_uv = Some(uv); - } - } - } - }; - - // For each universe which occurs in the input, we first iterate over all - // placeholders and then over all inference variables. - // - // Whenever we compress the universe of a placeholder, no existential with - // an already compressed universe can name that placeholder. - for is_existential in [false, true] { - for var in var_kinds.iter_mut() { - // We simply put all regions from the input into the highest - // compressed universe, so we only deal with them at the end. - if !var.is_region() { - if is_existential == var.is_existential() { - update_uv(var, orig_uv, is_existential) - } - } - } - } - } - - // We put all regions into a separate universe. - let mut first_region = true; - for var in var_kinds.iter_mut() { - if var.is_region() { - if first_region { - first_region = false; - curr_compressed_uv = curr_compressed_uv.next_universe(); - } - debug_assert!(var.is_existential()); - *var = var.with_updated_universe(curr_compressed_uv); - } - } - - let var_kinds = self.delegate.cx().mk_canonical_var_kinds(&var_kinds); - (curr_compressed_uv, var_kinds) } fn cached_fold_ty(&mut self, t: I::Ty) -> I::Ty { @@ -407,11 +306,18 @@ impl<'a, D: SolverDelegate<Interner = I>, I: Interner> Canonicalizer<'a, D, I> { "ty vid should have been resolved fully before canonicalization" ); - CanonicalVarKind::Ty(CanonicalTyVarKind::General( - self.delegate - .universe_of_ty(vid) - .unwrap_or_else(|| panic!("ty var should have been resolved: {t:?}")), - )) + match self.canonicalize_mode { + CanonicalizeMode::Input { .. } => CanonicalVarKind::Ty( + CanonicalTyVarKind::General(ty::UniverseIndex::ROOT), + ), + CanonicalizeMode::Response { .. } => { + CanonicalVarKind::Ty(CanonicalTyVarKind::General( + self.delegate.universe_of_ty(vid).unwrap_or_else(|| { + panic!("ty var should have been resolved: {t:?}") + }), + )) + } + } } ty::IntVar(vid) => { debug_assert_eq!( @@ -435,7 +341,7 @@ impl<'a, D: SolverDelegate<Interner = I>, I: Interner> Canonicalizer<'a, D, I> { }, ty::Placeholder(placeholder) => match self.canonicalize_mode { CanonicalizeMode::Input { .. } => CanonicalVarKind::PlaceholderTy( - PlaceholderLike::new_anon(placeholder.universe(), self.variables.len().into()), + PlaceholderLike::new_anon(ty::UniverseIndex::ROOT, self.variables.len().into()), ), CanonicalizeMode::Response { .. } => CanonicalVarKind::PlaceholderTy(placeholder), }, @@ -588,13 +494,21 @@ impl<D: SolverDelegate<Interner = I>, I: Interner> TypeFolder<I> for Canonicaliz c, "const vid should have been resolved fully before canonicalization" ); - CanonicalVarKind::Const(self.delegate.universe_of_ct(vid).unwrap()) + + match self.canonicalize_mode { + CanonicalizeMode::Input { .. } => { + CanonicalVarKind::Const(ty::UniverseIndex::ROOT) + } + CanonicalizeMode::Response { .. } => { + CanonicalVarKind::Const(self.delegate.universe_of_ct(vid).unwrap()) + } + } } ty::InferConst::Fresh(_) => todo!(), }, ty::ConstKind::Placeholder(placeholder) => match self.canonicalize_mode { CanonicalizeMode::Input { .. } => CanonicalVarKind::PlaceholderConst( - PlaceholderLike::new_anon(placeholder.universe(), self.variables.len().into()), + PlaceholderLike::new_anon(ty::UniverseIndex::ROOT, self.variables.len().into()), ), CanonicalizeMode::Response { .. } => { CanonicalVarKind::PlaceholderConst(placeholder) diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_parse/src/validate_attr.rs index 27355a422d1..8fdc06ee463 100644 --- a/compiler/rustc_parse/src/validate_attr.rs +++ b/compiler/rustc_parse/src/validate_attr.rs @@ -304,6 +304,7 @@ fn emit_malformed_attribute( | sym::naked | sym::no_mangle | sym::non_exhaustive + | sym::ignore | sym::must_use | sym::track_caller | sym::link_name @@ -319,8 +320,7 @@ fn emit_malformed_attribute( // Some of previously accepted forms were used in practice, // report them as warnings for now. - let should_warn = - |name| matches!(name, sym::doc | sym::ignore | sym::link | sym::test | sym::bench); + let should_warn = |name| matches!(name, sym::doc | sym::link | sym::test | sym::bench); let error_msg = format!("malformed `{name}` attribute input"); let mut suggestions = vec![]; diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index c5ced406414..3fa5cdc36bc 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -160,7 +160,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { } Attribute::Parsed(AttributeKind::DocComment { .. }) => { /* `#[doc]` is actually a lot more than just doc comments, so is checked below*/ } - Attribute::Parsed(AttributeKind::Repr(_)) => { /* handled below this loop and elsewhere */ + Attribute::Parsed(AttributeKind::Repr { .. }) => { /* handled below this loop and elsewhere */ } Attribute::Parsed(AttributeKind::RustcObjectLifetimeDefault) => { self.check_object_lifetime_default(hir_id); @@ -215,6 +215,9 @@ impl<'tcx> CheckAttrVisitor<'tcx> { Attribute::Parsed(AttributeKind::MayDangle(attr_span)) => { self.check_may_dangle(hir_id, *attr_span) } + Attribute::Parsed(AttributeKind::Ignore { span, .. }) => { + self.check_generic_attr(hir_id, sym::ignore, *span, target, Target::Fn) + } Attribute::Parsed(AttributeKind::MustUse { span, .. }) => { self.check_must_use(hir_id, *span, target) } @@ -303,7 +306,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { } [sym::path, ..] => self.check_generic_attr_unparsed(hir_id, attr, target, Target::Mod), [sym::macro_export, ..] => self.check_macro_export(hir_id, attr, target), - [sym::ignore, ..] | [sym::should_panic, ..] => { + [sym::should_panic, ..] => { self.check_generic_attr_unparsed(hir_id, attr, target, Target::Fn) } [sym::automatically_derived, ..] => { @@ -1945,7 +1948,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { // #[repr(foo)] // #[repr(bar, align(8))] // ``` - let reprs = find_attr!(attrs, AttributeKind::Repr(r) => r.as_slice()).unwrap_or(&[]); + let (reprs, first_attr_span) = find_attr!(attrs, AttributeKind::Repr { reprs, first_span } => (reprs.as_slice(), Some(*first_span))).unwrap_or((&[], None)); let mut int_reprs = 0; let mut is_explicit_rust = false; @@ -2042,31 +2045,30 @@ impl<'tcx> CheckAttrVisitor<'tcx> { continue; } } - // FIXME(jdonszelmann): move the diagnostic for unused repr attrs here, I think - // it's a better place for it. - ReprAttr::ReprEmpty => { - // catch `repr()` with no arguments, applied to an item (i.e. not `#![repr()]`) - if item.is_some() { - match target { - Target::Struct | Target::Union | Target::Enum => continue, - Target::Fn | Target::Method(_) => { - self.dcx().emit_err(errors::ReprAlignShouldBeAlign { - span: *repr_span, - item: target.name(), - }); - } - _ => { - self.dcx().emit_err(errors::AttrApplication::StructEnumUnion { - hint_span: *repr_span, - span, - }); - } - } - } + }; + } - return; + // catch `repr()` with no arguments, applied to an item (i.e. not `#![repr()]`) + if let Some(first_attr_span) = first_attr_span + && reprs.is_empty() + && item.is_some() + { + match target { + Target::Struct | Target::Union | Target::Enum => {} + Target::Fn | Target::Method(_) => { + self.dcx().emit_err(errors::ReprAlignShouldBeAlign { + span: first_attr_span, + item: target.name(), + }); } - }; + _ => { + self.dcx().emit_err(errors::AttrApplication::StructEnumUnion { + hint_span: first_attr_span, + span, + }); + } + } + return; } // Just point at all repr hints if there are any incompatibilities. @@ -2321,43 +2323,8 @@ impl<'tcx> CheckAttrVisitor<'tcx> { } fn check_unused_attribute(&self, hir_id: HirId, attr: &Attribute, style: Option<AttrStyle>) { - // FIXME(jdonszelmann): deduplicate these checks after more attrs are parsed. This is very - // ugly now but can 100% be removed later. - if let Attribute::Parsed(p) = attr { - match p { - AttributeKind::Repr(reprs) => { - for (r, span) in reprs { - if let ReprAttr::ReprEmpty = r { - self.tcx.emit_node_span_lint( - UNUSED_ATTRIBUTES, - hir_id, - *span, - errors::Unused { - attr_span: *span, - note: errors::UnusedNote::EmptyList { name: sym::repr }, - }, - ); - } - } - return; - } - AttributeKind::TargetFeature(features, span) if features.len() == 0 => { - self.tcx.emit_node_span_lint( - UNUSED_ATTRIBUTES, - hir_id, - *span, - errors::Unused { - attr_span: *span, - note: errors::UnusedNote::EmptyList { name: sym::target_feature }, - }, - ); - return; - } - _ => {} - }; - } - // Warn on useless empty attributes. + // FIXME(jdonszelmann): this lint should be moved to attribute parsing, see `AcceptContext::warn_empty_attribute` let note = if attr.has_any_name(&[ sym::macro_use, sym::allow, @@ -2573,7 +2540,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { } fn check_rustc_pub_transparent(&self, attr_span: Span, span: Span, attrs: &[Attribute]) { - if !find_attr!(attrs, AttributeKind::Repr(r) => r.iter().any(|(r, _)| r == &ReprAttr::ReprTransparent)) + if !find_attr!(attrs, AttributeKind::Repr { reprs, .. } => reprs.iter().any(|(r, _)| r == &ReprAttr::ReprTransparent)) .unwrap_or(false) { self.dcx().emit_err(errors::RustcPubTransparent { span, attr_span }); @@ -2849,8 +2816,12 @@ fn check_invalid_crate_level_attr(tcx: TyCtxt<'_>, attrs: &[Attribute]) { ATTRS_TO_CHECK.iter().find(|attr_to_check| attr.has_name(**attr_to_check)) { (attr.span(), *a) - } else if let Attribute::Parsed(AttributeKind::Repr(r)) = attr { - (r.first().unwrap().1, sym::repr) + } else if let Attribute::Parsed(AttributeKind::Repr { + reprs: _, + first_span: first_attr_span, + }) = attr + { + (*first_attr_span, sym::repr) } else { continue; }; diff --git a/compiler/rustc_passes/src/liveness/rwu_table.rs b/compiler/rustc_passes/src/liveness/rwu_table.rs index 4c1f6ea141e..a1177946f86 100644 --- a/compiler/rustc_passes/src/liveness/rwu_table.rs +++ b/compiler/rustc_passes/src/liveness/rwu_table.rs @@ -44,7 +44,7 @@ impl RWUTable { const WORD_RWU_COUNT: usize = Self::WORD_BITS / Self::RWU_BITS; pub(super) fn new(live_nodes: usize, vars: usize) -> RWUTable { - let live_node_words = (vars + Self::WORD_RWU_COUNT - 1) / Self::WORD_RWU_COUNT; + let live_node_words = vars.div_ceil(Self::WORD_RWU_COUNT); Self { live_nodes, vars, live_node_words, words: vec![0u8; live_node_words * live_nodes] } } diff --git a/compiler/rustc_query_system/src/query/plumbing.rs b/compiler/rustc_query_system/src/query/plumbing.rs index 3c1fc731784..06e59eb4ccc 100644 --- a/compiler/rustc_query_system/src/query/plumbing.rs +++ b/compiler/rustc_query_system/src/query/plumbing.rs @@ -597,7 +597,7 @@ where // from disk. Re-hashing results is fairly expensive, so we can't // currently afford to verify every hash. This subset should still // give us some coverage of potential bugs though. - let try_verify = prev_fingerprint.split().1.as_u64() % 32 == 0; + let try_verify = prev_fingerprint.split().1.as_u64().is_multiple_of(32); if std::intrinsics::unlikely( try_verify || qcx.dep_context().sess().opts.unstable_opts.incremental_verify_ich, ) { diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index 650a827ba56..eeb8cb893d7 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -1202,12 +1202,8 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { fn insert_unused_macro(&mut self, ident: Ident, def_id: LocalDefId, node_id: NodeId) { if !ident.as_str().starts_with('_') { self.r.unused_macros.insert(def_id, (node_id, ident)); - for (rule_i, rule_span) in &self.r.macro_map[&def_id.to_def_id()].rule_spans { - self.r - .unused_macro_rules - .entry(node_id) - .or_default() - .insert(*rule_i, (ident, *rule_span)); + for rule_i in 0..self.r.macro_map[&def_id.to_def_id()].nrules { + self.r.unused_macro_rules.entry(node_id).or_default().insert(rule_i); } } } diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs index 7162f3a77d3..3f865d7c2da 100644 --- a/compiler/rustc_resolve/src/lib.rs +++ b/compiler/rustc_resolve/src/lib.rs @@ -1014,13 +1014,13 @@ struct DeriveData { struct MacroData { ext: Arc<SyntaxExtension>, - rule_spans: Vec<(usize, Span)>, + nrules: usize, macro_rules: bool, } impl MacroData { fn new(ext: Arc<SyntaxExtension>) -> MacroData { - MacroData { ext, rule_spans: Vec::new(), macro_rules: false } + MacroData { ext, nrules: 0, macro_rules: false } } } @@ -1135,7 +1135,7 @@ pub struct Resolver<'ra, 'tcx> { ast_transform_scopes: FxHashMap<LocalExpnId, Module<'ra>>, unused_macros: FxIndexMap<LocalDefId, (NodeId, Ident)>, /// A map from the macro to all its potentially unused arms. - unused_macro_rules: FxIndexMap<NodeId, UnordMap<usize, (Ident, Span)>>, + unused_macro_rules: FxIndexMap<NodeId, UnordSet<usize>>, proc_macro_stubs: FxHashSet<LocalDefId>, /// Traces collected during macro resolution and validated when it's complete. single_segment_macro_resolutions: diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index 3d33a02a9c6..9bc96403559 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -351,13 +351,23 @@ impl<'ra, 'tcx> ResolverExpand for Resolver<'ra, 'tcx> { } for (&node_id, unused_arms) in self.unused_macro_rules.iter() { - for (&arm_i, &(ident, rule_span)) in unused_arms.to_sorted_stable_ord() { - self.lint_buffer.buffer_lint( - UNUSED_MACRO_RULES, - node_id, - rule_span, - BuiltinLintDiag::MacroRuleNeverUsed(arm_i, ident.name), - ); + if unused_arms.is_empty() { + continue; + } + let def_id = self.local_def_id(node_id).to_def_id(); + let m = &self.macro_map[&def_id]; + let SyntaxExtensionKind::LegacyBang(ref ext) = m.ext.kind else { + continue; + }; + for &arm_i in unused_arms.to_sorted_stable_ord() { + if let Some((ident, rule_span)) = ext.get_unused_rule(arm_i) { + self.lint_buffer.buffer_lint( + UNUSED_MACRO_RULES, + node_id, + rule_span, + BuiltinLintDiag::MacroRuleNeverUsed(arm_i, ident.name), + ); + } } } } @@ -1146,7 +1156,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { node_id: NodeId, edition: Edition, ) -> MacroData { - let (mut ext, mut rule_spans) = compile_declarative_macro( + let (mut ext, mut nrules) = compile_declarative_macro( self.tcx.sess, self.tcx.features(), macro_def, @@ -1163,13 +1173,13 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // The macro is a built-in, replace its expander function // while still taking everything else from the source code. ext.kind = builtin_ext_kind.clone(); - rule_spans = Vec::new(); + nrules = 0; } else { self.dcx().emit_err(errors::CannotFindBuiltinMacroWithName { span, ident }); } } - MacroData { ext: Arc::new(ext), rule_spans, macro_rules: macro_def.macro_rules } + MacroData { ext: Arc::new(ext), nrules, macro_rules: macro_def.macro_rules } } fn path_accessible( diff --git a/compiler/rustc_serialize/src/leb128.rs b/compiler/rustc_serialize/src/leb128.rs index 954c1f728f2..da328dcea03 100644 --- a/compiler/rustc_serialize/src/leb128.rs +++ b/compiler/rustc_serialize/src/leb128.rs @@ -7,7 +7,7 @@ use crate::serialize::Decoder; /// Returns the length of the longest LEB128 encoding for `T`, assuming `T` is an integer type pub const fn max_leb128_len<T>() -> usize { // The longest LEB128 encoding for an integer uses 7 bits per byte. - (size_of::<T>() * 8 + 6) / 7 + (size_of::<T>() * 8).div_ceil(7) } /// Returns the length of the longest LEB128 encoding of all supported integer types. diff --git a/compiler/rustc_smir/src/stable_mir/unstable/convert/internal.rs b/compiler/rustc_smir/src/stable_mir/unstable/convert/internal.rs index 4cbe02bfa0d..37c93af392e 100644 --- a/compiler/rustc_smir/src/stable_mir/unstable/convert/internal.rs +++ b/compiler/rustc_smir/src/stable_mir/unstable/convert/internal.rs @@ -7,7 +7,6 @@ use rustc_middle::ty::{self as rustc_ty, Const as InternalConst, Ty as InternalTy}; use rustc_smir::Tables; -use rustc_span::Symbol; use stable_mir::abi::Layout; use stable_mir::compiler_interface::BridgeTys; use stable_mir::mir::alloc::AllocId; @@ -446,17 +445,15 @@ impl RustcInternal for BoundVariableKind { match self { BoundVariableKind::Ty(kind) => rustc_ty::BoundVariableKind::Ty(match kind { BoundTyKind::Anon => rustc_ty::BoundTyKind::Anon, - BoundTyKind::Param(def, symbol) => rustc_ty::BoundTyKind::Param( - def.0.internal(tables, tcx), - Symbol::intern(symbol), - ), + BoundTyKind::Param(def, _symbol) => { + rustc_ty::BoundTyKind::Param(def.0.internal(tables, tcx)) + } }), BoundVariableKind::Region(kind) => rustc_ty::BoundVariableKind::Region(match kind { BoundRegionKind::BrAnon => rustc_ty::BoundRegionKind::Anon, - BoundRegionKind::BrNamed(def, symbol) => rustc_ty::BoundRegionKind::Named( - def.0.internal(tables, tcx), - Symbol::intern(symbol), - ), + BoundRegionKind::BrNamed(def, _symbol) => { + rustc_ty::BoundRegionKind::Named(def.0.internal(tables, tcx)) + } BoundRegionKind::BrEnv => rustc_ty::BoundRegionKind::ClosureEnv, }), BoundVariableKind::Const => rustc_ty::BoundVariableKind::Const, diff --git a/compiler/rustc_smir/src/stable_mir/unstable/convert/stable/ty.rs b/compiler/rustc_smir/src/stable_mir/unstable/convert/stable/ty.rs index c0a430079d8..596c8b96bfc 100644 --- a/compiler/rustc_smir/src/stable_mir/unstable/convert/stable/ty.rs +++ b/compiler/rustc_smir/src/stable_mir/unstable/convert/stable/ty.rs @@ -1,7 +1,7 @@ //! Conversion of internal Rust compiler `ty` items to stable ones. use rustc_middle::ty::Ty; -use rustc_middle::{mir, ty}; +use rustc_middle::{bug, mir, ty}; use rustc_smir::Tables; use rustc_smir::context::SmirCtxt; use stable_mir::alloc; @@ -291,14 +291,14 @@ impl<'tcx> Stable<'tcx> for ty::BoundTyKind { fn stable<'cx>( &self, tables: &mut Tables<'cx, BridgeTys>, - _: &SmirCtxt<'cx, BridgeTys>, + cx: &SmirCtxt<'cx, BridgeTys>, ) -> Self::T { use stable_mir::ty::BoundTyKind; match self { ty::BoundTyKind::Anon => BoundTyKind::Anon, - ty::BoundTyKind::Param(def_id, symbol) => { - BoundTyKind::Param(tables.param_def(*def_id), symbol.to_string()) + ty::BoundTyKind::Param(def_id) => { + BoundTyKind::Param(tables.param_def(*def_id), cx.tcx.item_name(*def_id).to_string()) } } } @@ -310,16 +310,18 @@ impl<'tcx> Stable<'tcx> for ty::BoundRegionKind { fn stable<'cx>( &self, tables: &mut Tables<'cx, BridgeTys>, - _: &SmirCtxt<'cx, BridgeTys>, + cx: &SmirCtxt<'cx, BridgeTys>, ) -> Self::T { use stable_mir::ty::BoundRegionKind; match self { ty::BoundRegionKind::Anon => BoundRegionKind::BrAnon, - ty::BoundRegionKind::Named(def_id, symbol) => { - BoundRegionKind::BrNamed(tables.br_named_def(*def_id), symbol.to_string()) - } + ty::BoundRegionKind::Named(def_id) => BoundRegionKind::BrNamed( + tables.br_named_def(*def_id), + cx.tcx.item_name(*def_id).to_string(), + ), ty::BoundRegionKind::ClosureEnv => BoundRegionKind::BrEnv, + ty::BoundRegionKind::NamedAnon(_) => bug!("only used for pretty printing"), } } } diff --git a/compiler/rustc_span/src/edit_distance.rs b/compiler/rustc_span/src/edit_distance.rs index 4f3202b694c..416e9daa8fb 100644 --- a/compiler/rustc_span/src/edit_distance.rs +++ b/compiler/rustc_span/src/edit_distance.rs @@ -130,7 +130,7 @@ pub fn edit_distance_with_substrings(a: &str, b: &str, limit: usize) -> Option<u 1 // Exact substring match, but not a total word match so return non-zero } else if !big_len_diff { // Not a big difference in length, discount cost of length difference - score + (len_diff + 1) / 2 + score + len_diff.div_ceil(2) } else { // A big difference in length, add back the difference in length to the score score + len_diff diff --git a/compiler/rustc_target/src/callconv/sparc64.rs b/compiler/rustc_target/src/callconv/sparc64.rs index 186826c08fc..ecc9067ced3 100644 --- a/compiler/rustc_target/src/callconv/sparc64.rs +++ b/compiler/rustc_target/src/callconv/sparc64.rs @@ -90,7 +90,7 @@ where _ => {} } - if (offset.bytes() % 4) != 0 + if !offset.bytes().is_multiple_of(4) && matches!(scalar2.primitive(), Primitive::Float(Float::F32 | Float::F64)) { offset += Size::from_bytes(4 - (offset.bytes() % 4)); @@ -181,7 +181,7 @@ where // Structure { float, int, int } doesn't like to be handled like // { float, long int }. Other way around it doesn't mind. if data.last_offset < arg.layout.size - && (data.last_offset.bytes() % 8) != 0 + && !data.last_offset.bytes().is_multiple_of(8) && data.prefix_index < data.prefix.len() { data.prefix[data.prefix_index] = Some(Reg::i32()); @@ -190,7 +190,7 @@ where } let mut rest_size = arg.layout.size - data.last_offset; - if (rest_size.bytes() % 8) != 0 && data.prefix_index < data.prefix.len() { + if !rest_size.bytes().is_multiple_of(8) && data.prefix_index < data.prefix.len() { data.prefix[data.prefix_index] = Some(Reg::i32()); rest_size = rest_size - Reg::i32().size; } diff --git a/compiler/rustc_target/src/callconv/x86.rs b/compiler/rustc_target/src/callconv/x86.rs index 8328f818f9b..bdf116ff303 100644 --- a/compiler/rustc_target/src/callconv/x86.rs +++ b/compiler/rustc_target/src/callconv/x86.rs @@ -171,7 +171,7 @@ pub(crate) fn fill_inregs<'a, Ty, C>( continue; } - let size_in_regs = (arg.layout.size.bits() + 31) / 32; + let size_in_regs = arg.layout.size.bits().div_ceil(32); if size_in_regs == 0 { continue; diff --git a/compiler/rustc_target/src/callconv/x86_64.rs b/compiler/rustc_target/src/callconv/x86_64.rs index 700ee73c8fd..d8db7ed6e4c 100644 --- a/compiler/rustc_target/src/callconv/x86_64.rs +++ b/compiler/rustc_target/src/callconv/x86_64.rs @@ -95,7 +95,7 @@ where Ok(()) } - let n = ((arg.layout.size.bytes() + 7) / 8) as usize; + let n = arg.layout.size.bytes().div_ceil(8) as usize; if n > MAX_EIGHTBYTES { return Err(Memory); } diff --git a/compiler/rustc_target/src/callconv/xtensa.rs b/compiler/rustc_target/src/callconv/xtensa.rs index b687f0e20c6..a73a70a1a0c 100644 --- a/compiler/rustc_target/src/callconv/xtensa.rs +++ b/compiler/rustc_target/src/callconv/xtensa.rs @@ -54,7 +54,7 @@ where // Determine the number of GPRs needed to pass the current argument // according to the ABI. 2*XLen-aligned varargs are passed in "aligned" // register pairs, so may consume 3 registers. - let mut needed_arg_gprs = (size + 32 - 1) / 32; + let mut needed_arg_gprs = size.div_ceil(32); if needed_align == 64 { needed_arg_gprs += *arg_gprs_left % 2; } diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/named_anon_conflict.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/named_anon_conflict.rs index aa7935a29f0..73a04d78519 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/named_anon_conflict.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/named_anon_conflict.rs @@ -2,8 +2,6 @@ //! where one region is named and the other is anonymous. use rustc_errors::Diag; -use rustc_middle::ty; -use rustc_span::kw; use tracing::debug; use crate::error_reporting::infer::nice_region_error::NiceRegionError; @@ -27,12 +25,12 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { // only introduced anonymous regions in parameters) as well as a // version new_ty of its type where the anonymous region is replaced // with the named one. - let (named, anon, anon_param_info, region_info) = if sub.has_name() + let (named, anon, anon_param_info, region_info) = if sub.is_named(self.tcx()) && let Some(region_info) = self.tcx().is_suitable_region(self.generic_param_scope, sup) && let Some(anon_param_info) = self.find_param_with_region(sup, sub) { (sub, sup, anon_param_info, region_info) - } else if sup.has_name() + } else if sup.is_named(self.tcx()) && let Some(region_info) = self.tcx().is_suitable_region(self.generic_param_scope, sub) && let Some(anon_param_info) = self.find_param_with_region(sub, sup) { @@ -58,14 +56,10 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { let scope_def_id = region_info.scope; let is_impl_item = region_info.is_impl_item; - match anon_param_info.kind { - ty::LateParamRegionKind::Named(_, kw::UnderscoreLifetime) - | ty::LateParamRegionKind::Anon(_) => {} - _ => { - /* not an anonymous region */ - debug!("try_report_named_anon_conflict: not an anonymous region"); - return None; - } + if anon_param_info.kind.is_named(self.tcx()) { + /* not an anonymous region */ + debug!("try_report_named_anon_conflict: not an anonymous region"); + return None; } if is_impl_item { diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/placeholder_error.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/placeholder_error.rs index 5056161e117..64fc365c44a 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/placeholder_error.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/placeholder_error.rs @@ -164,7 +164,7 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { sub_region @ Region(Interned(RePlaceholder(_), _)), sup_region, )) => self.try_report_trait_placeholder_mismatch( - (!sup_region.has_name()).then_some(*sup_region), + (!sup_region.is_named(self.tcx())).then_some(*sup_region), cause, Some(*sub_region), None, @@ -176,7 +176,7 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { sub_region, sup_region @ Region(Interned(RePlaceholder(_), _)), )) => self.try_report_trait_placeholder_mismatch( - (!sub_region.has_name()).then_some(*sub_region), + (!sub_region.is_named(self.tcx())).then_some(*sub_region), cause, None, Some(*sup_region), diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/placeholder_relation.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/placeholder_relation.rs index 7fcd3c847e3..3bab09bc587 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/placeholder_relation.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/placeholder_relation.rs @@ -1,5 +1,6 @@ use rustc_data_structures::intern::Interned; use rustc_errors::Diag; +use rustc_middle::bug; use rustc_middle::ty::{self, RePlaceholder, Region}; use crate::error_reporting::infer::nice_region_error::NiceRegionError; @@ -28,20 +29,22 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { )), )) => { let span = *span; - let (sub_span, sub_symbol) = match sub_name { - ty::BoundRegionKind::Named(def_id, symbol) => { - (Some(self.tcx().def_span(def_id)), Some(symbol)) + let (sub_span, sub_symbol) = match *sub_name { + ty::BoundRegionKind::Named(def_id) => { + (Some(self.tcx().def_span(def_id)), Some(self.tcx().item_name(def_id))) } ty::BoundRegionKind::Anon | ty::BoundRegionKind::ClosureEnv => (None, None), + ty::BoundRegionKind::NamedAnon(_) => bug!("only used for pretty printing"), }; - let (sup_span, sup_symbol) = match sup_name { - ty::BoundRegionKind::Named(def_id, symbol) => { - (Some(self.tcx().def_span(def_id)), Some(symbol)) + let (sup_span, sup_symbol) = match *sup_name { + ty::BoundRegionKind::Named(def_id) => { + (Some(self.tcx().def_span(def_id)), Some(self.tcx().item_name(def_id))) } ty::BoundRegionKind::Anon | ty::BoundRegionKind::ClosureEnv => (None, None), + ty::BoundRegionKind::NamedAnon(_) => bug!("only used for pretty printing"), }; let diag = match (sub_span, sup_span, sub_symbol, sup_symbol) { - (Some(sub_span), Some(sup_span), Some(&sub_symbol), Some(&sup_symbol)) => { + (Some(sub_span), Some(sup_span), Some(sub_symbol), Some(sup_symbol)) => { PlaceholderRelationLfNotSatisfied::HasBoth { span, sub_span, @@ -51,7 +54,7 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { note: (), } } - (Some(sub_span), Some(sup_span), _, Some(&sup_symbol)) => { + (Some(sub_span), Some(sup_span), _, Some(sup_symbol)) => { PlaceholderRelationLfNotSatisfied::HasSup { span, sub_span, @@ -60,7 +63,7 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { note: (), } } - (Some(sub_span), Some(sup_span), Some(&sub_symbol), _) => { + (Some(sub_span), Some(sup_span), Some(sub_symbol), _) => { PlaceholderRelationLfNotSatisfied::HasSub { span, sub_span, diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs index eaa06d8e8b0..3edc365c886 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs @@ -45,7 +45,8 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { let return_sp = sub_origin.span(); let param = self.find_param_with_region(*sup_r, *sub_r)?; let simple_ident = param.param.pat.simple_ident(); - let lifetime_name = if sup_r.has_name() { sup_r.to_string() } else { "'_".to_owned() }; + let lifetime_name = + if sup_r.is_named(self.tcx()) { sup_r.to_string() } else { "'_".to_owned() }; let (mention_influencer, influencer_point) = if sup_origin.span().overlaps(param.param_ty_span) { @@ -99,7 +100,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { // We don't need a note, it's already at the end, it can be shown as a `span_label`. require_span_as_label: (!require_as_note).then_some(require_span), - has_lifetime: sup_r.has_name(), + has_lifetime: sup_r.is_named(self.tcx()), lifetime: lifetime_name.clone(), has_param_name: simple_ident.is_some(), param_name: simple_ident.map(|x| x.to_string()).unwrap_or_default(), diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/trait_impl_difference.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/trait_impl_difference.rs index f1237130c15..772a7f01332 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/trait_impl_difference.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/trait_impl_difference.rs @@ -60,14 +60,15 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { // Mark all unnamed regions in the type with a number. // This diagnostic is called in response to lifetime errors, so be informative. struct HighlightBuilder<'tcx> { + tcx: TyCtxt<'tcx>, highlight: RegionHighlightMode<'tcx>, counter: usize, } impl<'tcx> HighlightBuilder<'tcx> { - fn build(sig: ty::PolyFnSig<'tcx>) -> RegionHighlightMode<'tcx> { + fn build(tcx: TyCtxt<'tcx>, sig: ty::PolyFnSig<'tcx>) -> RegionHighlightMode<'tcx> { let mut builder = - HighlightBuilder { highlight: RegionHighlightMode::default(), counter: 1 }; + HighlightBuilder { tcx, highlight: RegionHighlightMode::default(), counter: 1 }; sig.visit_with(&mut builder); builder.highlight } @@ -75,15 +76,15 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { impl<'tcx> ty::TypeVisitor<TyCtxt<'tcx>> for HighlightBuilder<'tcx> { fn visit_region(&mut self, r: ty::Region<'tcx>) { - if !r.has_name() && self.counter <= 3 { + if !r.is_named(self.tcx) && self.counter <= 3 { self.highlight.highlighting_region(r, self.counter); self.counter += 1; } } } - let expected_highlight = HighlightBuilder::build(expected); let tcx = self.cx.tcx; + let expected_highlight = HighlightBuilder::build(tcx, expected); let expected = Highlighted { highlight: expected_highlight, ns: Namespace::TypeNS, @@ -91,7 +92,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { value: expected, } .to_string(); - let found_highlight = HighlightBuilder::build(found); + let found_highlight = HighlightBuilder::build(tcx, found); let found = Highlighted { highlight: found_highlight, ns: Namespace::TypeNS, tcx, value: found } .to_string(); diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/util.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/util.rs index 4a71ab4e06a..5f2aab38c31 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/util.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/util.rs @@ -46,7 +46,7 @@ pub fn find_param_with_region<'tcx>( ty::ReLateParam(late_param) => (late_param.scope, late_param.kind), ty::ReEarlyParam(ebr) => { let region_def = tcx.generics_of(generic_param_scope).region_param(ebr, tcx).def_id; - (tcx.parent(region_def), ty::LateParamRegionKind::Named(region_def, ebr.name)) + (tcx.parent(region_def), ty::LateParamRegionKind::Named(region_def)) } _ => return None, // not a free region }; @@ -144,7 +144,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { // We are only checking is any region meets the condition so order doesn't matter #[allow(rustc::potential_query_instability)] late_bound_regions.iter().any(|r| match *r { - ty::BoundRegionKind::Named(def_id, _) => def_id == region_def_id, + ty::BoundRegionKind::Named(def_id) => def_id == region_def_id, _ => false, }) } diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/region.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/region.rs index 4fab67b01cb..f3441a8d72a 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/region.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/region.rs @@ -713,14 +713,14 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } let labeled_user_string = match bound_kind { - GenericKind::Param(ref p) => format!("the parameter type `{p}`"), - GenericKind::Placeholder(ref p) => format!("the placeholder type `{p:?}`"), - GenericKind::Alias(ref p) => match p.kind(self.tcx) { + GenericKind::Param(_) => format!("the parameter type `{bound_kind}`"), + GenericKind::Placeholder(_) => format!("the placeholder type `{bound_kind}`"), + GenericKind::Alias(p) => match p.kind(self.tcx) { ty::Projection | ty::Inherent => { - format!("the associated type `{p}`") + format!("the associated type `{bound_kind}`") } - ty::Free => format!("the type alias `{p}`"), - ty::Opaque => format!("the opaque type `{p}`"), + ty::Free => format!("the type alias `{bound_kind}`"), + ty::Opaque => format!("the opaque type `{bound_kind}`"), }, }; @@ -729,7 +729,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { .dcx() .struct_span_err(span, format!("{labeled_user_string} may not live long enough")); err.code(match sub.kind() { - ty::ReEarlyParam(_) | ty::ReLateParam(_) if sub.has_name() => E0309, + ty::ReEarlyParam(_) | ty::ReLateParam(_) if sub.is_named(self.tcx) => E0309, ty::ReStatic => E0310, _ => E0311, }); @@ -755,7 +755,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { || (bound_kind, sub).has_placeholders() || !bound_kind.is_suggestable(self.tcx, false) { - let lt_name = sub.get_name_or_anon().to_string(); + let lt_name = sub.get_name_or_anon(self.tcx).to_string(); err.help(format!("{msg} `{bound_kind}: {lt_name}`...")); break 'suggestion; } @@ -875,13 +875,13 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } } - let (lifetime_def_id, lifetime_scope) = match self - .tcx - .is_suitable_region(generic_param_scope, lifetime) - { - Some(info) if !lifetime.has_name() => (info.region_def_id.expect_local(), info.scope), - _ => return lifetime.get_name_or_anon().to_string(), - }; + let (lifetime_def_id, lifetime_scope) = + match self.tcx.is_suitable_region(generic_param_scope, lifetime) { + Some(info) if !lifetime.is_named(self.tcx) => { + (info.region_def_id.expect_local(), info.scope) + } + _ => return lifetime.get_name_or_anon(self.tcx).to_string(), + }; let new_lt = { let generics = self.tcx.generics_of(lifetime_scope); @@ -895,7 +895,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { // consider late-bound lifetimes ... used_names.extend(self.tcx.late_bound_vars(hir_id).into_iter().filter_map( |p| match p { - ty::BoundVariableKind::Region(lt) => lt.get_name(), + ty::BoundVariableKind::Region(lt) => lt.get_name(self.tcx), _ => None, }, )); @@ -1006,7 +1006,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { fn report_inference_failure(&self, var_origin: RegionVariableOrigin) -> Diag<'_> { let br_string = |br: ty::BoundRegionKind| { let mut s = match br { - ty::BoundRegionKind::Named(_, name) => name.to_string(), + ty::BoundRegionKind::Named(def_id) => self.tcx.item_name(def_id).to_string(), _ => String::new(), }; if !s.is_empty() { @@ -1109,7 +1109,7 @@ fn msg_span_from_named_region<'tcx>( ty::ReEarlyParam(br) => { let param_def_id = tcx.generics_of(generic_param_scope).region_param(br, tcx).def_id; let span = tcx.def_span(param_def_id); - let text = if br.has_name() { + let text = if br.is_named() { format!("the lifetime `{}` as defined here", br.name) } else { "the anonymous lifetime as defined here".to_string() @@ -1117,13 +1117,14 @@ fn msg_span_from_named_region<'tcx>( (text, Some(span)) } ty::ReLateParam(ref fr) => { - if !fr.kind.is_named() + if !fr.kind.is_named(tcx) && let Some((ty, _)) = find_anon_type(tcx, generic_param_scope, region) { ("the anonymous lifetime defined here".to_string(), Some(ty.span)) } else { match fr.kind { - ty::LateParamRegionKind::Named(param_def_id, name) => { + ty::LateParamRegionKind::Named(param_def_id) => { + let name = tcx.item_name(param_def_id); let span = tcx.def_span(param_def_id); let text = if name == kw::UnderscoreLifetime { "the anonymous lifetime as defined here".to_string() @@ -1145,9 +1146,12 @@ fn msg_span_from_named_region<'tcx>( } ty::ReStatic => ("the static lifetime".to_owned(), alt_span), ty::RePlaceholder(ty::PlaceholderRegion { - bound: ty::BoundRegion { kind: ty::BoundRegionKind::Named(def_id, name), .. }, + bound: ty::BoundRegion { kind: ty::BoundRegionKind::Named(def_id), .. }, .. - }) => (format!("the lifetime `{name}` as defined here"), Some(tcx.def_span(def_id))), + }) => ( + format!("the lifetime `{}` as defined here", tcx.item_name(def_id)), + Some(tcx.def_span(def_id)), + ), ty::RePlaceholder(ty::PlaceholderRegion { bound: ty::BoundRegion { kind: ty::BoundRegionKind::Anon, .. }, .. diff --git a/compiler/rustc_trait_selection/src/errors/note_and_explain.rs b/compiler/rustc_trait_selection/src/errors/note_and_explain.rs index ec3c1ba4a45..3471036256d 100644 --- a/compiler/rustc_trait_selection/src/errors/note_and_explain.rs +++ b/compiler/rustc_trait_selection/src/errors/note_and_explain.rs @@ -32,21 +32,22 @@ impl<'a> DescriptionCtx<'a> { } else { tcx.def_span(scope) }; - if br.has_name() { + if br.is_named() { (Some(span), "as_defined", br.name.to_string()) } else { (Some(span), "as_defined_anon", String::new()) } } ty::ReLateParam(ref fr) => { - if !fr.kind.is_named() + if !fr.kind.is_named(tcx) && let Some((ty, _)) = find_anon_type(tcx, generic_param_scope, region) { (Some(ty.span), "defined_here", String::new()) } else { let scope = fr.scope.expect_local(); match fr.kind { - ty::LateParamRegionKind::Named(_, name) => { + ty::LateParamRegionKind::Named(def_id) => { + let name = tcx.item_name(def_id); let span = if let Some(param) = tcx .hir_get_generics(scope) .and_then(|generics| generics.get_named(name)) diff --git a/compiler/rustc_ty_utils/src/assoc.rs b/compiler/rustc_ty_utils/src/assoc.rs index a65f9b347dc..2fb3c5ff945 100644 --- a/compiler/rustc_ty_utils/src/assoc.rs +++ b/compiler/rustc_ty_utils/src/assoc.rs @@ -195,12 +195,39 @@ fn associated_types_for_impl_traits_in_associated_fn( match tcx.def_kind(parent_def_id) { DefKind::Trait => { if let Some(output) = tcx.hir_get_fn_output(fn_def_id) { - let data = DefPathData::AnonAssocTy(tcx.item_name(fn_def_id.to_def_id())); + let def_path_id = |def_id: LocalDefId| tcx.item_name(def_id.to_def_id()); + let def_path_data = def_path_id(fn_def_id); + + let (.., trait_item_refs) = tcx.hir_expect_item(parent_def_id).expect_trait(); + // The purpose of `disambiguator_idx` is to ensure there are + // no duplicate `def_id` in certain cases, such as: + // ``` + // trait Foo { + // fn bar() -> impl Trait; + // fn bar() -> impl Trait; + // // ~~~~~~~~~~ It will generate the same ID if we don’t disambiguate it. + // } + // ``` + let disambiguator_idx = trait_item_refs + .iter() + .take_while(|item| item.id.owner_id.def_id != fn_def_id) + .fold(0, |acc, item| { + if !matches!(item.kind, hir::AssocItemKind::Fn { .. }) { + acc + } else if def_path_id(item.id.owner_id.def_id) == def_path_data { + tcx.def_key(item.id.owner_id.def_id).disambiguated_data.disambiguator + + 1 + } else { + acc + } + }); + + let data = DefPathData::AnonAssocTy(def_path_data); let mut visitor = RPITVisitor { tcx, synthetics: vec![], data, - disambiguator: DisambiguatorState::with(parent_def_id, data, 0), + disambiguator: DisambiguatorState::with(parent_def_id, data, disambiguator_idx), }; visitor.visit_fn_ret_ty(output); tcx.arena.alloc_from_iter( diff --git a/compiler/rustc_ty_utils/src/layout/invariant.rs b/compiler/rustc_ty_utils/src/layout/invariant.rs index 4b65c05d0e9..1311ee31182 100644 --- a/compiler/rustc_ty_utils/src/layout/invariant.rs +++ b/compiler/rustc_ty_utils/src/layout/invariant.rs @@ -8,7 +8,7 @@ use rustc_middle::ty::layout::{HasTyCtxt, LayoutCx, TyAndLayout}; pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayout<'tcx>) { let tcx = cx.tcx(); - if layout.size.bytes() % layout.align.abi.bytes() != 0 { + if !layout.size.bytes().is_multiple_of(layout.align.abi.bytes()) { bug!("size is not a multiple of align, in the following layout:\n{layout:#?}"); } if layout.size.bytes() >= tcx.data_layout.obj_size_bound() { diff --git a/library/core/src/ffi/va_list.rs b/library/core/src/ffi/va_list.rs index 8f7c090bc1b..88ad1197777 100644 --- a/library/core/src/ffi/va_list.rs +++ b/library/core/src/ffi/va_list.rs @@ -5,6 +5,7 @@ use crate::ffi::c_void; #[allow(unused_imports)] use crate::fmt; +use crate::intrinsics::{va_arg, va_copy, va_end}; use crate::marker::{PhantomData, PhantomInvariantLifetime}; use crate::ops::{Deref, DerefMut}; @@ -280,20 +281,3 @@ impl<'f> Drop for VaListImpl<'f> { // This works for now, since `va_end` is a no-op on all current LLVM targets. } } - -/// Destroy the arglist `ap` after initialization with `va_start` or -/// `va_copy`. -#[rustc_intrinsic] -#[rustc_nounwind] -unsafe fn va_end(ap: &mut VaListImpl<'_>); - -/// Copies the current location of arglist `src` to the arglist `dst`. -#[rustc_intrinsic] -#[rustc_nounwind] -unsafe fn va_copy<'f>(dest: *mut VaListImpl<'f>, src: &VaListImpl<'f>); - -/// Loads an argument of type `T` from the `va_list` `ap` and increment the -/// argument `ap` points to. -#[rustc_intrinsic] -#[rustc_nounwind] -unsafe fn va_arg<T: VaArgSafe>(ap: &mut VaListImpl<'_>) -> T; diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index ab99492638e..791d10eda6d 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -54,6 +54,7 @@ )] #![allow(missing_docs)] +use crate::ffi::va_list::{VaArgSafe, VaListImpl}; use crate::marker::{ConstParamTy, DiscriminantKind, PointeeSized, Tuple}; use crate::ptr; @@ -3142,3 +3143,25 @@ pub(crate) const fn miri_promise_symbolic_alignment(ptr: *const (), align: usize } ) } + +/// Copies the current location of arglist `src` to the arglist `dst`. +/// +/// FIXME: document safety requirements +#[rustc_intrinsic] +#[rustc_nounwind] +pub unsafe fn va_copy<'f>(dest: *mut VaListImpl<'f>, src: &VaListImpl<'f>); + +/// Loads an argument of type `T` from the `va_list` `ap` and increment the +/// argument `ap` points to. +/// +/// FIXME: document safety requirements +#[rustc_intrinsic] +#[rustc_nounwind] +pub unsafe fn va_arg<T: VaArgSafe>(ap: &mut VaListImpl<'_>) -> T; + +/// Destroy the arglist `ap` after initialization with `va_start` or `va_copy`. +/// +/// FIXME: document safety requirements +#[rustc_intrinsic] +#[rustc_nounwind] +pub unsafe fn va_end(ap: &mut VaListImpl<'_>); diff --git a/library/core/src/ops/arith.rs b/library/core/src/ops/arith.rs index 7ffde233da3..e53c128efe0 100644 --- a/library/core/src/ops/arith.rs +++ b/library/core/src/ops/arith.rs @@ -627,7 +627,7 @@ macro_rules! rem_impl_float { /// ``` #[stable(feature = "rust1", since = "1.0.0")] #[rustc_const_unstable(feature = "const_ops", issue = "90080")] - impl Rem for $t { + impl const Rem for $t { type Output = $t; #[inline] diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs index 3a3f44c6b85..dc09ba8d788 100644 --- a/library/core/src/slice/mod.rs +++ b/library/core/src/slice/mod.rs @@ -1316,7 +1316,7 @@ impl<T> [T] { assert_unsafe_precondition!( check_language_ub, "slice::as_chunks_unchecked requires `N != 0` and the slice to split exactly into `N`-element chunks", - (n: usize = N, len: usize = self.len()) => n != 0 && len % n == 0, + (n: usize = N, len: usize = self.len()) => n != 0 && len.is_multiple_of(n), ); // SAFETY: Caller must guarantee that `N` is nonzero and exactly divides the slice length let new_len = unsafe { exact_div(self.len(), N) }; @@ -1512,7 +1512,7 @@ impl<T> [T] { assert_unsafe_precondition!( check_language_ub, "slice::as_chunks_unchecked requires `N != 0` and the slice to split exactly into `N`-element chunks", - (n: usize = N, len: usize = self.len()) => n != 0 && len % n == 0 + (n: usize = N, len: usize = self.len()) => n != 0 && len.is_multiple_of(n) ); // SAFETY: Caller must guarantee that `N` is nonzero and exactly divides the slice length let new_len = unsafe { exact_div(self.len(), N) }; @@ -4866,7 +4866,7 @@ impl<T> [T] { let byte_offset = elem_start.wrapping_sub(self_start); - if byte_offset % size_of::<T>() != 0 { + if !byte_offset.is_multiple_of(size_of::<T>()) { return None; } @@ -4920,7 +4920,7 @@ impl<T> [T] { let byte_start = subslice_start.wrapping_sub(self_start); - if byte_start % size_of::<T>() != 0 { + if !byte_start.is_multiple_of(size_of::<T>()) { return None; } diff --git a/library/core/src/slice/sort/shared/smallsort.rs b/library/core/src/slice/sort/shared/smallsort.rs index 4280f7570db..400daba16c1 100644 --- a/library/core/src/slice/sort/shared/smallsort.rs +++ b/library/core/src/slice/sort/shared/smallsort.rs @@ -823,7 +823,7 @@ unsafe fn bidirectional_merge<T: FreezeMarker, F: FnMut(&T, &T) -> bool>( let right_end = right_rev.wrapping_add(1); // Odd length, so one element is left unconsumed in the input. - if len % 2 != 0 { + if !len.is_multiple_of(2) { let left_nonempty = left < left_end; let last_src = if left_nonempty { left } else { right }; ptr::copy_nonoverlapping(last_src, dst, 1); diff --git a/library/core/src/slice/sort/stable/drift.rs b/library/core/src/slice/sort/stable/drift.rs index cf1df1e91a5..1edffe095a8 100644 --- a/library/core/src/slice/sort/stable/drift.rs +++ b/library/core/src/slice/sort/stable/drift.rs @@ -158,7 +158,7 @@ fn merge_tree_scale_factor(n: usize) -> u64 { panic!("Platform not supported"); } - ((1 << 62) + n as u64 - 1) / n as u64 + (1u64 << 62).div_ceil(n as u64) } // Note: merge_tree_depth output is < 64 when left < right as f*x and f*y must @@ -182,7 +182,7 @@ fn sqrt_approx(n: usize) -> usize { // Finally we note that the exponentiation / division can be done directly // with shifts. We OR with 1 to avoid zero-checks in the integer log. let ilog = (n | 1).ilog2(); - let shift = (1 + ilog) / 2; + let shift = ilog.div_ceil(2); ((1 << shift) + (n >> shift)) / 2 } diff --git a/library/core/src/str/count.rs b/library/core/src/str/count.rs index 452403b23de..f59ad3e66b4 100644 --- a/library/core/src/str/count.rs +++ b/library/core/src/str/count.rs @@ -52,7 +52,7 @@ fn do_count_chars(s: &str) -> usize { // Check the properties of `CHUNK_SIZE` and `UNROLL_INNER` that are required // for correctness. const _: () = assert!(CHUNK_SIZE < 256); - const _: () = assert!(CHUNK_SIZE % UNROLL_INNER == 0); + const _: () = assert!(CHUNK_SIZE.is_multiple_of(UNROLL_INNER)); // SAFETY: transmuting `[u8]` to `[usize]` is safe except for size // differences which are handled by `align_to`. diff --git a/library/core/src/str/iter.rs b/library/core/src/str/iter.rs index 425c4eaee28..bcf886484ad 100644 --- a/library/core/src/str/iter.rs +++ b/library/core/src/str/iter.rs @@ -102,7 +102,7 @@ impl<'a> Iterator for Chars<'a> { // `(len + 3)` can't overflow, because we know that the `slice::Iter` // belongs to a slice in memory which has a maximum length of // `isize::MAX` (that's well below `usize::MAX`). - ((len + 3) / 4, Some(len)) + (len.div_ceil(4), Some(len)) } #[inline] @@ -1532,11 +1532,11 @@ impl<'a> Iterator for EncodeUtf16<'a> { // belongs to a slice in memory which has a maximum length of // `isize::MAX` (that's well below `usize::MAX`) if self.extra == 0 { - ((len + 2) / 3, Some(len)) + (len.div_ceil(3), Some(len)) } else { // We're in the middle of a surrogate pair, so add the remaining // surrogate to the bounds. - ((len + 2) / 3 + 1, Some(len + 1)) + (len.div_ceil(3) + 1, Some(len + 1)) } } } diff --git a/library/core/src/str/validations.rs b/library/core/src/str/validations.rs index 8174e4ff97d..b54d6478e58 100644 --- a/library/core/src/str/validations.rs +++ b/library/core/src/str/validations.rs @@ -219,7 +219,7 @@ pub(super) const fn run_utf8_validation(v: &[u8]) -> Result<(), Utf8Error> { // Ascii case, try to skip forward quickly. // When the pointer is aligned, read 2 words of data per iteration // until we find a word containing a non-ascii byte. - if align != usize::MAX && align.wrapping_sub(index) % USIZE_BYTES == 0 { + if align != usize::MAX && align.wrapping_sub(index).is_multiple_of(USIZE_BYTES) { let ptr = v.as_ptr(); while index < blocks_end { // SAFETY: since `align - index` and `ascii_block_size` are diff --git a/library/portable-simd/crates/core_simd/src/lane_count.rs b/library/portable-simd/crates/core_simd/src/lane_count.rs index 280b27bc9bc..bbdfd5f5f3e 100644 --- a/library/portable-simd/crates/core_simd/src/lane_count.rs +++ b/library/portable-simd/crates/core_simd/src/lane_count.rs @@ -8,7 +8,7 @@ pub struct LaneCount<const N: usize>; impl<const N: usize> LaneCount<N> { /// The number of bytes in a bitmask with this many lanes. - pub const BITMASK_LEN: usize = (N + 7) / 8; + pub const BITMASK_LEN: usize = N.div_ceil(8); } /// Statically guarantees that a lane count is marked as supported. diff --git a/library/std/src/sync/poison.rs b/library/std/src/sync/poison.rs index cc1d0b30152..571f0d14248 100644 --- a/library/std/src/sync/poison.rs +++ b/library/std/src/sync/poison.rs @@ -13,7 +13,7 @@ //! depend on the primitive. See [#Overview] bellow. //! //! For the alternative implementations that do not employ poisoning, -//! see `std::sys::nonpoisoning`. +//! see `std::sync::nonpoisoning`. //! //! # Overview //! diff --git a/library/std/src/sys/net/connection/uefi/mod.rs b/library/std/src/sys/net/connection/uefi/mod.rs index 2d465bd0efa..6835ba44ee2 100644 --- a/library/std/src/sys/net/connection/uefi/mod.rs +++ b/library/std/src/sys/net/connection/uefi/mod.rs @@ -38,16 +38,17 @@ impl TcpStream { unsupported() } - pub fn read(&self, _: &mut [u8]) -> io::Result<usize> { - unsupported() + pub fn read(&self, buf: &mut [u8]) -> io::Result<usize> { + self.0.read(buf) } - pub fn read_buf(&self, _buf: BorrowedCursor<'_>) -> io::Result<()> { - unsupported() + pub fn read_buf(&self, cursor: BorrowedCursor<'_>) -> io::Result<()> { + crate::io::default_read_buf(|buf| self.read(buf), cursor) } - pub fn read_vectored(&self, _: &mut [IoSliceMut<'_>]) -> io::Result<usize> { - unsupported() + pub fn read_vectored(&self, buf: &mut [IoSliceMut<'_>]) -> io::Result<usize> { + // FIXME: UEFI does support vectored read, so implement that. + crate::io::default_read_vectored(|b| self.read(b), buf) } pub fn is_read_vectored(&self) -> bool { diff --git a/library/std/src/sys/net/connection/uefi/tcp.rs b/library/std/src/sys/net/connection/uefi/tcp.rs index 9c3462e3468..55b6dbf2490 100644 --- a/library/std/src/sys/net/connection/uefi/tcp.rs +++ b/library/std/src/sys/net/connection/uefi/tcp.rs @@ -24,4 +24,10 @@ impl Tcp { Self::V4(client) => client.write(buf), } } + + pub(crate) fn read(&self, buf: &mut [u8]) -> io::Result<usize> { + match self { + Self::V4(client) => client.read(buf), + } + } } diff --git a/library/std/src/sys/net/connection/uefi/tcp4.rs b/library/std/src/sys/net/connection/uefi/tcp4.rs index d0f0d27d975..af1ba2be47a 100644 --- a/library/std/src/sys/net/connection/uefi/tcp4.rs +++ b/library/std/src/sys/net/connection/uefi/tcp4.rs @@ -128,6 +128,45 @@ impl Tcp4 { } } + pub(crate) fn read(&self, buf: &mut [u8]) -> io::Result<usize> { + let evt = unsafe { self.create_evt() }?; + let completion_token = + tcp4::CompletionToken { event: evt.as_ptr(), status: Status::SUCCESS }; + let data_len = u32::try_from(buf.len()).unwrap_or(u32::MAX); + + let fragment = tcp4::FragmentData { + fragment_length: data_len, + fragment_buffer: buf.as_mut_ptr().cast::<crate::ffi::c_void>(), + }; + let mut tx_data = tcp4::ReceiveData { + urgent_flag: r_efi::efi::Boolean::FALSE, + data_length: data_len, + fragment_count: 1, + fragment_table: [fragment], + }; + + let protocol = self.protocol.as_ptr(); + let mut token = tcp4::IoToken { + completion_token, + packet: tcp4::IoTokenPacket { + rx_data: (&raw mut tx_data).cast::<tcp4::ReceiveData<0>>(), + }, + }; + + let r = unsafe { ((*protocol).receive)(protocol, &mut token) }; + if r.is_error() { + return Err(io::Error::from_raw_os_error(r.as_usize())); + } + + self.wait_for_flag(); + + if completion_token.status.is_error() { + Err(io::Error::from_raw_os_error(completion_token.status.as_usize())) + } else { + Ok(data_len as usize) + } + } + unsafe fn create_evt(&self) -> io::Result<helpers::OwnedEvent> { self.flag.store(false, Ordering::Relaxed); helpers::OwnedEvent::new( diff --git a/library/std/src/sys/pal/hermit/thread.rs b/library/std/src/sys/pal/hermit/thread.rs index bb68a824fc3..9bc5a16b800 100644 --- a/library/std/src/sys/pal/hermit/thread.rs +++ b/library/std/src/sys/pal/hermit/thread.rs @@ -4,7 +4,7 @@ use super::hermit_abi; use crate::ffi::CStr; use crate::mem::ManuallyDrop; use crate::num::NonZero; -use crate::time::Duration; +use crate::time::{Duration, Instant}; use crate::{io, ptr}; pub type Tid = hermit_abi::Tid; @@ -86,6 +86,14 @@ impl Thread { } } + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + pub fn join(self) { unsafe { let _ = hermit_abi::join(self.tid); diff --git a/library/std/src/sys/pal/itron/thread.rs b/library/std/src/sys/pal/itron/thread.rs index a974f4f17ae..813e1cbcd58 100644 --- a/library/std/src/sys/pal/itron/thread.rs +++ b/library/std/src/sys/pal/itron/thread.rs @@ -10,7 +10,7 @@ use crate::mem::ManuallyDrop; use crate::num::NonZero; use crate::ptr::NonNull; use crate::sync::atomic::{Atomic, AtomicUsize, Ordering}; -use crate::time::Duration; +use crate::time::{Duration, Instant}; use crate::{hint, io}; pub struct Thread { @@ -205,6 +205,14 @@ impl Thread { } } + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + pub fn join(self) { // Safety: `ThreadInner` is alive at this point let inner = unsafe { self.p_inner.as_ref() }; diff --git a/library/std/src/sys/pal/sgx/thread.rs b/library/std/src/sys/pal/sgx/thread.rs index 219ef1b7a98..85f6dcd96b4 100644 --- a/library/std/src/sys/pal/sgx/thread.rs +++ b/library/std/src/sys/pal/sgx/thread.rs @@ -5,7 +5,7 @@ use super::unsupported; use crate::ffi::CStr; use crate::io; use crate::num::NonZero; -use crate::time::Duration; +use crate::time::{Duration, Instant}; pub struct Thread(task_queue::JoinHandle); @@ -132,6 +132,14 @@ impl Thread { usercalls::wait_timeout(0, dur, || true); } + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + pub fn join(self) { self.0.wait(); } diff --git a/library/std/src/sys/pal/teeos/thread.rs b/library/std/src/sys/pal/teeos/thread.rs index e3b4908f858..b9cdc7a2a58 100644 --- a/library/std/src/sys/pal/teeos/thread.rs +++ b/library/std/src/sys/pal/teeos/thread.rs @@ -2,7 +2,7 @@ use crate::ffi::CStr; use crate::mem::{self, ManuallyDrop}; use crate::num::NonZero; use crate::sys::os; -use crate::time::Duration; +use crate::time::{Duration, Instant}; use crate::{cmp, io, ptr}; pub const DEFAULT_MIN_STACK_SIZE: usize = 8 * 1024; @@ -109,6 +109,14 @@ impl Thread { } } + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + /// must join, because no pthread_detach supported pub fn join(self) { let id = self.into_id(); diff --git a/library/std/src/sys/pal/uefi/thread.rs b/library/std/src/sys/pal/uefi/thread.rs index 7d4006ff4b2..e4776ec42fb 100644 --- a/library/std/src/sys/pal/uefi/thread.rs +++ b/library/std/src/sys/pal/uefi/thread.rs @@ -3,7 +3,7 @@ use crate::ffi::CStr; use crate::io; use crate::num::NonZero; use crate::ptr::NonNull; -use crate::time::Duration; +use crate::time::{Duration, Instant}; pub struct Thread(!); @@ -39,6 +39,14 @@ impl Thread { } } + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + pub fn join(self) { self.0 } diff --git a/library/std/src/sys/pal/unix/thread.rs b/library/std/src/sys/pal/unix/thread.rs index d8b189413f4..53f0d1eeda5 100644 --- a/library/std/src/sys/pal/unix/thread.rs +++ b/library/std/src/sys/pal/unix/thread.rs @@ -6,7 +6,7 @@ use crate::sys::weak::dlsym; #[cfg(any(target_os = "solaris", target_os = "illumos", target_os = "nto",))] use crate::sys::weak::weak; use crate::sys::{os, stack_overflow}; -use crate::time::Duration; +use crate::time::{Duration, Instant}; use crate::{cmp, io, ptr}; #[cfg(not(any( target_os = "l4re", @@ -296,6 +296,76 @@ impl Thread { } } + // Any unix that has clock_nanosleep + // If this list changes update the MIRI chock_nanosleep shim + #[cfg(any( + target_os = "freebsd", + target_os = "netbsd", + target_os = "linux", + target_os = "android", + target_os = "solaris", + target_os = "illumos", + target_os = "dragonfly", + target_os = "hurd", + target_os = "fuchsia", + target_os = "vxworks", + ))] + pub fn sleep_until(deadline: Instant) { + let Some(ts) = deadline.into_inner().into_timespec().to_timespec() else { + // The deadline is further in the future then can be passed to + // clock_nanosleep. We have to use Self::sleep instead. This might + // happen on 32 bit platforms, especially closer to 2038. + let now = Instant::now(); + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + return; + }; + + unsafe { + // When we get interrupted (res = EINTR) call clock_nanosleep again + loop { + let res = libc::clock_nanosleep( + super::time::Instant::CLOCK_ID, + libc::TIMER_ABSTIME, + &ts, + core::ptr::null_mut(), // not required with TIMER_ABSTIME + ); + + if res == 0 { + break; + } else { + assert_eq!( + res, + libc::EINTR, + "timespec is in range, + clockid is valid and kernel should support it" + ); + } + } + } + } + + // Any unix that does not have clock_nanosleep + #[cfg(not(any( + target_os = "freebsd", + target_os = "netbsd", + target_os = "linux", + target_os = "android", + target_os = "solaris", + target_os = "illumos", + target_os = "dragonfly", + target_os = "hurd", + target_os = "fuchsia", + target_os = "vxworks", + )))] + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + pub fn join(self) { let id = self.into_id(); let ret = unsafe { libc::pthread_join(id, ptr::null_mut()) }; diff --git a/library/std/src/sys/pal/unix/time.rs b/library/std/src/sys/pal/unix/time.rs index 0074d767474..bd7f74fea6a 100644 --- a/library/std/src/sys/pal/unix/time.rs +++ b/library/std/src/sys/pal/unix/time.rs @@ -261,6 +261,10 @@ pub struct Instant { } impl Instant { + #[cfg(target_vendor = "apple")] + pub(crate) const CLOCK_ID: libc::clockid_t = libc::CLOCK_UPTIME_RAW; + #[cfg(not(target_vendor = "apple"))] + pub(crate) const CLOCK_ID: libc::clockid_t = libc::CLOCK_MONOTONIC; pub fn now() -> Instant { // https://www.manpagez.com/man/3/clock_gettime/ // @@ -273,11 +277,7 @@ impl Instant { // // Instant on macos was historically implemented using mach_absolute_time; // we preserve this value domain out of an abundance of caution. - #[cfg(target_vendor = "apple")] - const clock_id: libc::clockid_t = libc::CLOCK_UPTIME_RAW; - #[cfg(not(target_vendor = "apple"))] - const clock_id: libc::clockid_t = libc::CLOCK_MONOTONIC; - Instant { t: Timespec::now(clock_id) } + Instant { t: Timespec::now(Self::CLOCK_ID) } } pub fn checked_sub_instant(&self, other: &Instant) -> Option<Duration> { @@ -291,6 +291,14 @@ impl Instant { pub fn checked_sub_duration(&self, other: &Duration) -> Option<Instant> { Some(Instant { t: self.t.checked_sub_duration(other)? }) } + + #[cfg_attr( + not(target_os = "linux"), + allow(unused, reason = "needed by the `sleep_until` on some unix platforms") + )] + pub(crate) fn into_timespec(self) -> Timespec { + self.t + } } impl fmt::Debug for Instant { diff --git a/library/std/src/sys/pal/unsupported/thread.rs b/library/std/src/sys/pal/unsupported/thread.rs index 89f8bad7026..8a3119fa292 100644 --- a/library/std/src/sys/pal/unsupported/thread.rs +++ b/library/std/src/sys/pal/unsupported/thread.rs @@ -2,7 +2,7 @@ use super::unsupported; use crate::ffi::CStr; use crate::io; use crate::num::NonZero; -use crate::time::Duration; +use crate::time::{Duration, Instant}; pub struct Thread(!); @@ -26,6 +26,10 @@ impl Thread { panic!("can't sleep"); } + pub fn sleep_until(_deadline: Instant) { + panic!("can't sleep"); + } + pub fn join(self) { self.0 } diff --git a/library/std/src/sys/pal/wasi/thread.rs b/library/std/src/sys/pal/wasi/thread.rs index cc569bb3daf..5f21a553673 100644 --- a/library/std/src/sys/pal/wasi/thread.rs +++ b/library/std/src/sys/pal/wasi/thread.rs @@ -2,7 +2,7 @@ use crate::ffi::CStr; use crate::num::NonZero; -use crate::time::Duration; +use crate::time::{Duration, Instant}; use crate::{io, mem}; cfg_if::cfg_if! { @@ -171,6 +171,14 @@ impl Thread { } } + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + pub fn join(self) { cfg_if::cfg_if! { if #[cfg(target_feature = "atomics")] { diff --git a/library/std/src/sys/pal/wasm/atomics/thread.rs b/library/std/src/sys/pal/wasm/atomics/thread.rs index dd5aff391fd..44ce3eab109 100644 --- a/library/std/src/sys/pal/wasm/atomics/thread.rs +++ b/library/std/src/sys/pal/wasm/atomics/thread.rs @@ -2,7 +2,7 @@ use crate::ffi::CStr; use crate::io; use crate::num::NonZero; use crate::sys::unsupported; -use crate::time::Duration; +use crate::time::{Duration, Instant}; pub struct Thread(!); @@ -41,6 +41,14 @@ impl Thread { } } + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + pub fn join(self) {} } diff --git a/library/std/src/sys/pal/windows/thread.rs b/library/std/src/sys/pal/windows/thread.rs index 45e52cf4d04..14785171755 100644 --- a/library/std/src/sys/pal/windows/thread.rs +++ b/library/std/src/sys/pal/windows/thread.rs @@ -8,7 +8,7 @@ use crate::os::windows::io::{AsRawHandle, HandleOrNull}; use crate::sys::handle::Handle; use crate::sys::{c, stack_overflow}; use crate::sys_common::FromInner; -use crate::time::Duration; +use crate::time::{Duration, Instant}; use crate::{io, ptr}; pub const DEFAULT_MIN_STACK_SIZE: usize = 2 * 1024 * 1024; @@ -106,6 +106,14 @@ impl Thread { } } + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + pub fn handle(&self) -> &Handle { &self.handle } diff --git a/library/std/src/sys/pal/xous/thread.rs b/library/std/src/sys/pal/xous/thread.rs index 0ebb46dc19f..1b344e984dc 100644 --- a/library/std/src/sys/pal/xous/thread.rs +++ b/library/std/src/sys/pal/xous/thread.rs @@ -8,7 +8,7 @@ use crate::os::xous::ffi::{ map_memory, update_memory_flags, }; use crate::os::xous::services::{TicktimerScalar, ticktimer_server}; -use crate::time::Duration; +use crate::time::{Duration, Instant}; pub struct Thread { tid: ThreadId, @@ -128,6 +128,14 @@ impl Thread { } } + pub fn sleep_until(deadline: Instant) { + let now = Instant::now(); + + if let Some(delay) = deadline.checked_duration_since(now) { + Self::sleep(delay); + } + } + pub fn join(self) { join_thread(self.tid).unwrap(); } diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs index 26b2fb44724..6075173db47 100644 --- a/library/std/src/thread/mod.rs +++ b/library/std/src/thread/mod.rs @@ -897,8 +897,31 @@ pub fn sleep(dur: Duration) { /// /// # Platform-specific behavior /// -/// This function uses [`sleep`] internally, see its platform-specific behavior. +/// In most cases this function will call an OS specific function. Where that +/// is not supported [`sleep`] is used. Those platforms are referred to as other +/// in the table below. /// +/// # Underlying System calls +/// +/// The following system calls are [currently] being used: +/// +/// | Platform | System call | +/// |-----------|----------------------------------------------------------------------| +/// | Linux | [clock_nanosleep] (Monotonic clock) | +/// | BSD except OpenBSD | [clock_nanosleep] (Monotonic Clock)] | +/// | Android | [clock_nanosleep] (Monotonic Clock)] | +/// | Solaris | [clock_nanosleep] (Monotonic Clock)] | +/// | Illumos | [clock_nanosleep] (Monotonic Clock)] | +/// | Dragonfly | [clock_nanosleep] (Monotonic Clock)] | +/// | Hurd | [clock_nanosleep] (Monotonic Clock)] | +/// | Fuchsia | [clock_nanosleep] (Monotonic Clock)] | +/// | Vxworks | [clock_nanosleep] (Monotonic Clock)] | +/// | Other | `sleep_until` uses [`sleep`] and does not issue a syscall itself | +/// +/// [currently]: crate::io#platform-specific-behavior +/// [clock_nanosleep]: https://linux.die.net/man/3/clock_nanosleep +/// +/// **Disclaimer:** These system calls might change over time. /// /// # Examples /// @@ -923,9 +946,9 @@ pub fn sleep(dur: Duration) { /// } /// ``` /// -/// A slow api we must not call too fast and which takes a few +/// A slow API we must not call too fast and which takes a few /// tries before succeeding. By using `sleep_until` the time the -/// api call takes does not influence when we retry or when we give up +/// API call takes does not influence when we retry or when we give up /// /// ```no_run /// #![feature(thread_sleep_until)] @@ -960,11 +983,7 @@ pub fn sleep(dur: Duration) { /// ``` #[unstable(feature = "thread_sleep_until", issue = "113752")] pub fn sleep_until(deadline: Instant) { - let now = Instant::now(); - - if let Some(delay) = deadline.checked_duration_since(now) { - sleep(delay); - } + imp::Thread::sleep_until(deadline) } /// Used to ensure that `park` and `park_timeout` do not unwind, as that can diff --git a/library/std/src/time.rs b/library/std/src/time.rs index 393426be087..cd0683f44c9 100644 --- a/library/std/src/time.rs +++ b/library/std/src/time.rs @@ -407,6 +407,15 @@ impl Instant { pub fn checked_sub(&self, duration: Duration) -> Option<Instant> { self.0.checked_sub_duration(&duration).map(Instant) } + + // Used by platform specific `sleep_until` implementations such as the one used on Linux. + #[cfg_attr( + not(target_os = "linux"), + allow(unused, reason = "not every platform has a specific `sleep_until`") + )] + pub(crate) fn into_inner(self) -> time::Instant { + self.0 + } } #[stable(feature = "time2", since = "1.8.0")] diff --git a/library/std/tests/thread.rs b/library/std/tests/thread.rs index 1bb17d149fa..32561dd6ab6 100644 --- a/library/std/tests/thread.rs +++ b/library/std/tests/thread.rs @@ -1,7 +1,8 @@ +#![feature(thread_sleep_until)] use std::cell::{Cell, RefCell}; use std::sync::{Arc, Mutex}; use std::thread; -use std::time::Duration; +use std::time::{Duration, Instant}; #[test] #[cfg_attr(any(target_os = "emscripten", target_os = "wasi"), ignore)] // no threads @@ -18,6 +19,17 @@ fn sleep_very_long() { } #[test] +fn sleep_until() { + let now = Instant::now(); + let period = Duration::from_millis(100); + let deadline = now + period; + thread::sleep_until(deadline); + + let elapsed = now.elapsed(); + assert!(elapsed >= period); +} + +#[test] fn thread_local_containing_const_statements() { // This exercises the `const $init:block` cases of the thread_local macro. // Despite overlapping with expression syntax, the `const { ... }` is not diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs index c3a3eddd161..431c242608b 100644 --- a/src/bootstrap/src/core/build_steps/compile.rs +++ b/src/bootstrap/src/core/build_steps/compile.rs @@ -12,7 +12,6 @@ use std::ffi::OsStr; use std::io::BufReader; use std::io::prelude::*; use std::path::{Path, PathBuf}; -use std::process::Stdio; use std::{env, fs, str}; use serde_derive::Deserialize; @@ -2507,7 +2506,6 @@ pub fn stream_cargo( #[cfg(feature = "tracing")] let _run_span = crate::trace_cmd!(cmd); - let cargo = cmd.as_command_mut(); // Instruct Cargo to give us json messages on stdout, critically leaving // stderr as piped so we can get those pretty colors. let mut message_format = if builder.config.json_output { @@ -2519,27 +2517,24 @@ pub fn stream_cargo( message_format.push_str(",json-diagnostic-"); message_format.push_str(s); } - cargo.arg("--message-format").arg(message_format).stdout(Stdio::piped()); + cmd.arg("--message-format").arg(message_format); for arg in tail_args { - cargo.arg(arg); + cmd.arg(arg); } - builder.verbose(|| println!("running: {cargo:?}")); + builder.verbose(|| println!("running: {cmd:?}")); - if builder.config.dry_run() { - return true; - } + let streaming_command = cmd.stream_capture_stdout(&builder.config.exec_ctx); - let mut child = match cargo.spawn() { - Ok(child) => child, - Err(e) => panic!("failed to execute command: {cargo:?}\nERROR: {e}"), + let Some(mut streaming_command) = streaming_command else { + return true; }; // Spawn Cargo slurping up its JSON output. We'll start building up the // `deps` array of all files it generated along with a `toplevel` array of // files we need to probe for later. - let stdout = BufReader::new(child.stdout.take().unwrap()); + let stdout = BufReader::new(streaming_command.stdout.take().unwrap()); for line in stdout.lines() { let line = t!(line); match serde_json::from_str::<CargoMessage<'_>>(&line) { @@ -2556,13 +2551,14 @@ pub fn stream_cargo( } // Make sure Cargo actually succeeded after we read all of its stdout. - let status = t!(child.wait()); + let status = t!(streaming_command.wait()); if builder.is_verbose() && !status.success() { eprintln!( - "command did not execute successfully: {cargo:?}\n\ + "command did not execute successfully: {cmd:?}\n\ expected success, got: {status}" ); } + status.success() } diff --git a/src/bootstrap/src/core/build_steps/run.rs b/src/bootstrap/src/core/build_steps/run.rs index b3104ae05e8..b2293fdd9b5 100644 --- a/src/bootstrap/src/core/build_steps/run.rs +++ b/src/bootstrap/src/core/build_steps/run.rs @@ -5,6 +5,8 @@ use std::path::PathBuf; +use clap_complete::{Generator, shells}; + use crate::core::build_steps::dist::distdir; use crate::core::build_steps::test; use crate::core::build_steps::tool::{self, SourceType, Tool}; @@ -285,36 +287,35 @@ impl Step for GenerateWindowsSys { } } +/// Return tuples of (shell, file containing completions). +pub fn get_completion_paths(builder: &Builder<'_>) -> Vec<(&'static dyn Generator, PathBuf)> { + vec![ + (&shells::Bash as &'static dyn Generator, builder.src.join("src/etc/completions/x.py.sh")), + (&shells::Zsh, builder.src.join("src/etc/completions/x.py.zsh")), + (&shells::Fish, builder.src.join("src/etc/completions/x.py.fish")), + (&shells::PowerShell, builder.src.join("src/etc/completions/x.py.ps1")), + (&shells::Bash, builder.src.join("src/etc/completions/x.sh")), + (&shells::Zsh, builder.src.join("src/etc/completions/x.zsh")), + (&shells::Fish, builder.src.join("src/etc/completions/x.fish")), + (&shells::PowerShell, builder.src.join("src/etc/completions/x.ps1")), + ] +} + #[derive(Debug, Clone, PartialEq, Eq, Hash)] pub struct GenerateCompletions; -macro_rules! generate_completions { - ( $( ( $shell:ident, $filename:expr ) ),* ) => { - $( - if let Some(comp) = get_completion($shell, &$filename) { - std::fs::write(&$filename, comp).expect(&format!("writing {} completion", stringify!($shell))); - } - )* - }; -} - impl Step for GenerateCompletions { type Output = (); /// Uses `clap_complete` to generate shell completions. fn run(self, builder: &Builder<'_>) { - use clap_complete::shells::{Bash, Fish, PowerShell, Zsh}; - - generate_completions!( - (Bash, builder.src.join("src/etc/completions/x.py.sh")), - (Zsh, builder.src.join("src/etc/completions/x.py.zsh")), - (Fish, builder.src.join("src/etc/completions/x.py.fish")), - (PowerShell, builder.src.join("src/etc/completions/x.py.ps1")), - (Bash, builder.src.join("src/etc/completions/x.sh")), - (Zsh, builder.src.join("src/etc/completions/x.zsh")), - (Fish, builder.src.join("src/etc/completions/x.fish")), - (PowerShell, builder.src.join("src/etc/completions/x.ps1")) - ); + for (shell, path) in get_completion_paths(builder) { + if let Some(comp) = get_completion(shell, &path) { + std::fs::write(&path, comp).unwrap_or_else(|e| { + panic!("writing completion into {} failed: {e:?}", path.display()) + }); + } + } } fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index 2d4d9e53598..a5b7b22aba8 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -8,12 +8,11 @@ use std::ffi::{OsStr, OsString}; use std::path::{Path, PathBuf}; use std::{env, fs, iter}; -use clap_complete::shells; - use crate::core::build_steps::compile::{Std, run_cargo}; use crate::core::build_steps::doc::DocumentationFormat; use crate::core::build_steps::gcc::{Gcc, add_cg_gcc_cargo_flags}; use crate::core::build_steps::llvm::get_llvm_version; +use crate::core::build_steps::run::get_completion_paths; use crate::core::build_steps::synthetic_targets::MirOptPanicAbortSyntheticTarget; use crate::core::build_steps::tool::{self, COMPILETEST_ALLOW_FEATURES, SourceType, Tool}; use crate::core::build_steps::toolstate::ToolState; @@ -1153,14 +1152,12 @@ HELP: to skip test's attempt to check tidiness, pass `--skip src/tools/tidy` to cmd.delay_failure().run(builder); builder.info("x.py completions check"); - let [bash, zsh, fish, powershell] = ["x.py.sh", "x.py.zsh", "x.py.fish", "x.py.ps1"] - .map(|filename| builder.src.join("src/etc/completions").join(filename)); + let completion_paths = get_completion_paths(builder); if builder.config.cmd.bless() { builder.ensure(crate::core::build_steps::run::GenerateCompletions); - } else if get_completion(shells::Bash, &bash).is_some() - || get_completion(shells::Fish, &fish).is_some() - || get_completion(shells::PowerShell, &powershell).is_some() - || crate::flags::get_completion(shells::Zsh, &zsh).is_some() + } else if completion_paths + .into_iter() + .any(|(shell, path)| get_completion(shell, &path).is_some()) { eprintln!( "x.py completions were changed; run `x.py run generate-completions` to update them" diff --git a/src/bootstrap/src/core/config/flags.rs b/src/bootstrap/src/core/config/flags.rs index 79275db6486..bfc06f90d4f 100644 --- a/src/bootstrap/src/core/config/flags.rs +++ b/src/bootstrap/src/core/config/flags.rs @@ -6,6 +6,7 @@ use std::path::{Path, PathBuf}; use clap::{CommandFactory, Parser, ValueEnum}; +use clap_complete::Generator; #[cfg(feature = "tracing")] use tracing::instrument; @@ -644,7 +645,7 @@ impl Subcommand { /// Returns the shell completion for a given shell, if the result differs from the current /// content of `path`. If `path` does not exist, always returns `Some`. -pub fn get_completion<G: clap_complete::Generator>(shell: G, path: &Path) -> Option<String> { +pub fn get_completion(shell: &dyn Generator, path: &Path) -> Option<String> { let mut cmd = Flags::command(); let current = if !path.exists() { String::new() @@ -662,7 +663,12 @@ pub fn get_completion<G: clap_complete::Generator>(shell: G, path: &Path) -> Opt .expect("file name should be UTF-8") .rsplit_once('.') .expect("file name should have an extension"); - clap_complete::generate(shell, &mut cmd, bin_name, &mut buf); + + // We sort of replicate `clap_complete::generate` here, because we want to call it with + // `&dyn Generator`, but that function requires `G: Generator` instead. + cmd.set_bin_name(bin_name); + cmd.build(); + shell.generate(&cmd, &mut buf); if buf == current.as_bytes() { return None; } diff --git a/src/bootstrap/src/utils/change_tracker.rs b/src/bootstrap/src/utils/change_tracker.rs index 68312a503ee..f5a958618f9 100644 --- a/src/bootstrap/src/utils/change_tracker.rs +++ b/src/bootstrap/src/utils/change_tracker.rs @@ -446,4 +446,9 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[ severity: ChangeSeverity::Info, summary: "Added new option `build.tidy-extra-checks` to specify a default value for the --extra-checks cli flag.", }, + ChangeInfo { + change_id: 143493, + severity: ChangeSeverity::Warning, + summary: "The `spellcheck:fix` tidy extra check argument has been removed, use `--bless` instead", + }, ]; diff --git a/src/bootstrap/src/utils/exec.rs b/src/bootstrap/src/utils/exec.rs index d092765ef76..487077835ac 100644 --- a/src/bootstrap/src/utils/exec.rs +++ b/src/bootstrap/src/utils/exec.rs @@ -13,7 +13,9 @@ use std::fmt::{Debug, Formatter}; use std::hash::Hash; use std::panic::Location; use std::path::Path; -use std::process::{Child, Command, CommandArgs, CommandEnvs, ExitStatus, Output, Stdio}; +use std::process::{ + Child, ChildStderr, ChildStdout, Command, CommandArgs, CommandEnvs, ExitStatus, Output, Stdio, +}; use std::sync::{Arc, Mutex}; use build_helper::ci::CiEnv; @@ -209,15 +211,14 @@ impl<'a> BootstrapCommand { exec_ctx.as_ref().start(self, OutputMode::Capture, OutputMode::Print) } - /// Provides access to the stdlib Command inside. - /// FIXME: This function should be eventually removed from bootstrap. - pub fn as_command_mut(&mut self) -> &mut Command { - // We proactively mark this command as executed since we can't be certain how the returned - // command will be handled. Caching must also be avoided here, as the inner command could be - // modified externally without us being aware. - self.mark_as_executed(); - self.do_not_cache(); - &mut self.command + /// Spawn the command in background, while capturing and returning stdout, and printing stderr. + /// Returns None in dry-mode + #[track_caller] + pub fn stream_capture_stdout( + &'a mut self, + exec_ctx: impl AsRef<ExecutionContext>, + ) -> Option<StreamingCommand> { + exec_ctx.as_ref().stream(self, OutputMode::Capture, OutputMode::Print) } /// Mark the command as being executed, disarming the drop bomb. @@ -449,6 +450,12 @@ enum CommandState<'a> { }, } +pub struct StreamingCommand { + child: Child, + pub stdout: Option<ChildStdout>, + pub stderr: Option<ChildStderr>, +} + #[must_use] pub struct DeferredCommand<'a> { state: CommandState<'a>, @@ -617,6 +624,33 @@ impl ExecutionContext { } exit!(1); } + + /// Spawns the command with configured stdout and stderr handling. + /// + /// Returns None if in dry-run mode or Panics if the command fails to spawn. + pub fn stream( + &self, + command: &mut BootstrapCommand, + stdout: OutputMode, + stderr: OutputMode, + ) -> Option<StreamingCommand> { + command.mark_as_executed(); + if !command.run_in_dry_run && self.dry_run() { + return None; + } + let cmd = &mut command.command; + cmd.stdout(stdout.stdio()); + cmd.stderr(stderr.stdio()); + let child = cmd.spawn(); + let mut child = match child { + Ok(child) => child, + Err(e) => panic!("failed to execute command: {cmd:?}\nERROR: {e}"), + }; + + let stdout = child.stdout.take(); + let stderr = child.stderr.take(); + Some(StreamingCommand { child, stdout, stderr }) + } } impl AsRef<ExecutionContext> for ExecutionContext { @@ -625,6 +659,12 @@ impl AsRef<ExecutionContext> for ExecutionContext { } } +impl StreamingCommand { + pub fn wait(mut self) -> Result<ExitStatus, std::io::Error> { + self.child.wait() + } +} + impl<'a> DeferredCommand<'a> { pub fn wait_for_output(self, exec_ctx: impl AsRef<ExecutionContext>) -> CommandOutput { match self.state { diff --git a/src/bootstrap/src/utils/render_tests.rs b/src/bootstrap/src/utils/render_tests.rs index 051d7dd9fd4..934699d736b 100644 --- a/src/bootstrap/src/utils/render_tests.rs +++ b/src/bootstrap/src/utils/render_tests.rs @@ -7,7 +7,7 @@ //! to reimplement all the rendering logic in this module because of that. use std::io::{BufRead, BufReader, Read, Write}; -use std::process::{ChildStdout, Stdio}; +use std::process::ChildStdout; use std::time::Duration; use termcolor::{Color, ColorSpec, WriteColor}; @@ -34,50 +34,44 @@ pub(crate) fn try_run_tests( cmd: &mut BootstrapCommand, stream: bool, ) -> bool { - if builder.config.dry_run() { - cmd.mark_as_executed(); + if run_tests(builder, cmd, stream) { return true; } - if !run_tests(builder, cmd, stream) { - if builder.fail_fast { - crate::exit!(1); - } else { - builder.config.exec_ctx().add_to_delay_failure(format!("{cmd:?}")); - false - } - } else { - true + if builder.fail_fast { + crate::exit!(1); } + + builder.config.exec_ctx().add_to_delay_failure(format!("{cmd:?}")); + + false } fn run_tests(builder: &Builder<'_>, cmd: &mut BootstrapCommand, stream: bool) -> bool { - let cmd = cmd.as_command_mut(); - cmd.stdout(Stdio::piped()); - builder.verbose(|| println!("running: {cmd:?}")); - let mut process = cmd.spawn().unwrap(); + let Some(mut streaming_command) = cmd.stream_capture_stdout(&builder.config.exec_ctx) else { + return true; + }; // This runs until the stdout of the child is closed, which means the child exited. We don't // run this on another thread since the builder is not Sync. - let renderer = Renderer::new(process.stdout.take().unwrap(), builder); + let renderer = Renderer::new(streaming_command.stdout.take().unwrap(), builder); if stream { renderer.stream_all(); } else { renderer.render_all(); } - let result = process.wait_with_output().unwrap(); - if !result.status.success() && builder.is_verbose() { + let status = streaming_command.wait().unwrap(); + if !status.success() && builder.is_verbose() { println!( "\n\ncommand did not execute successfully: {cmd:?}\n\ - expected success, got: {}", - result.status + expected success, got: {status}", ); } - result.status.success() + status.success() } struct Renderer<'a> { diff --git a/src/bootstrap/src/utils/tests/mod.rs b/src/bootstrap/src/utils/tests/mod.rs index b8984d1f3aa..59c169b0f2b 100644 --- a/src/bootstrap/src/utils/tests/mod.rs +++ b/src/bootstrap/src/utils/tests/mod.rs @@ -7,6 +7,7 @@ use tempfile::TempDir; use crate::core::builder::Builder; use crate::core::config::DryRun; +use crate::utils::helpers::get_host_target; use crate::{Build, Config, Flags, t}; pub mod git; @@ -91,6 +92,13 @@ impl ConfigBuilder { self.args.push("--set".to_string()); self.args.push("build.submodules=false".to_string()); + // Override any external LLVM set and inhibit CI LLVM; pretend that we're always building + // in-tree LLVM from sources. + self.args.push("--set".to_string()); + self.args.push("llvm.download-ci-llvm=false".to_string()); + self.args.push("--set".to_string()); + self.args.push(format!("target.'{}'.llvm-config=false", get_host_target())); + // Do not mess with the local rustc checkout build directory self.args.push("--build-dir".to_string()); self.args.push(self.directory.join("build").display().to_string()); diff --git a/src/doc/rustc/src/platform-support/armv5te-unknown-linux-gnueabi.md b/src/doc/rustc/src/platform-support/armv5te-unknown-linux-gnueabi.md index 1baf1049994..0aebbc34d40 100644 --- a/src/doc/rustc/src/platform-support/armv5te-unknown-linux-gnueabi.md +++ b/src/doc/rustc/src/platform-support/armv5te-unknown-linux-gnueabi.md @@ -7,7 +7,7 @@ floating-point units. ## Target maintainers -[@koalatux](https://github.com/koalatux) +There are currently no formally documented target maintainers. ## Requirements diff --git a/src/etc/completions/x.fish b/src/etc/completions/x.fish index 46d18ac7dbc..69bd525a312 100644 --- a/src/etc/completions/x.fish +++ b/src/etc/completions/x.fish @@ -293,7 +293,7 @@ complete -c x -n "__fish_x_using_subcommand doc" -l skip-std-check-if-no-downloa complete -c x -n "__fish_x_using_subcommand doc" -s h -l help -d 'Print help (see more with \'--help\')' complete -c x -n "__fish_x_using_subcommand test" -l test-args -d 'extra arguments to be passed for the test tool being used (e.g. libtest, compiletest or rustdoc)' -r complete -c x -n "__fish_x_using_subcommand test" -l compiletest-rustc-args -d 'extra options to pass the compiler when running compiletest tests' -r -complete -c x -n "__fish_x_using_subcommand test" -l extra-checks -d 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell)' -r +complete -c x -n "__fish_x_using_subcommand test" -l extra-checks -d 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, shell:lint, cpp, cpp:fmt, spellcheck, spellcheck:fix)' -r complete -c x -n "__fish_x_using_subcommand test" -l compare-mode -d 'mode describing what file the actual ui output will be compared to' -r complete -c x -n "__fish_x_using_subcommand test" -l pass -d 'force {check,build,run}-pass tests to this mode' -r complete -c x -n "__fish_x_using_subcommand test" -l run -d 'whether to execute run-* tests' -r diff --git a/src/etc/completions/x.ps1 b/src/etc/completions/x.ps1 index 1ca00bb67df..7b142ba97ce 100644 --- a/src/etc/completions/x.ps1 +++ b/src/etc/completions/x.ps1 @@ -339,7 +339,7 @@ Register-ArgumentCompleter -Native -CommandName 'x' -ScriptBlock { 'x;test' { [CompletionResult]::new('--test-args', '--test-args', [CompletionResultType]::ParameterName, 'extra arguments to be passed for the test tool being used (e.g. libtest, compiletest or rustdoc)') [CompletionResult]::new('--compiletest-rustc-args', '--compiletest-rustc-args', [CompletionResultType]::ParameterName, 'extra options to pass the compiler when running compiletest tests') - [CompletionResult]::new('--extra-checks', '--extra-checks', [CompletionResultType]::ParameterName, 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell)') + [CompletionResult]::new('--extra-checks', '--extra-checks', [CompletionResultType]::ParameterName, 'comma-separated list of other files types to check (accepts py, py:lint, py:fmt, shell, shell:lint, cpp, cpp:fmt, spellcheck, spellcheck:fix)') [CompletionResult]::new('--compare-mode', '--compare-mode', [CompletionResultType]::ParameterName, 'mode describing what file the actual ui output will be compared to') [CompletionResult]::new('--pass', '--pass', [CompletionResultType]::ParameterName, 'force {check,build,run}-pass tests to this mode') [CompletionResult]::new('--run', '--run', [CompletionResultType]::ParameterName, 'whether to execute run-* tests') diff --git a/src/etc/completions/x.zsh b/src/etc/completions/x.zsh index 00fb7d8e2ec..c495e8318ba 100644 --- a/src/etc/completions/x.zsh +++ b/src/etc/completions/x.zsh @@ -338,7 +338,7 @@ _arguments "${_arguments_options[@]}" : \ _arguments "${_arguments_options[@]}" : \ '*--test-args=[extra arguments to be passed for the test tool being used (e.g. libtest, compiletest or rustdoc)]:ARGS:_default' \ '*--compiletest-rustc-args=[extra options to pass the compiler when running compiletest tests]:ARGS:_default' \ -'--extra-checks=[comma-separated list of other files types to check (accepts py, py\:lint, py\:fmt, shell)]:EXTRA_CHECKS:_default' \ +'--extra-checks=[comma-separated list of other files types to check (accepts py, py\:lint, py\:fmt, shell, shell\:lint, cpp, cpp\:fmt, spellcheck, spellcheck\:fix)]:EXTRA_CHECKS:_default' \ '--compare-mode=[mode describing what file the actual ui output will be compared to]:COMPARE MODE:_default' \ '--pass=[force {check,build,run}-pass tests to this mode]:check | build | run:_default' \ '--run=[whether to execute run-* tests]:auto | always | never:_default' \ diff --git a/src/librustdoc/clean/inline.rs b/src/librustdoc/clean/inline.rs index dcd499d5f0d..96199cb972a 100644 --- a/src/librustdoc/clean/inline.rs +++ b/src/librustdoc/clean/inline.rs @@ -293,7 +293,7 @@ pub(super) fn build_function(cx: &mut DocContext<'_>, def_id: DefId) -> Box<clea let sig = cx.tcx.fn_sig(def_id).instantiate_identity(); // The generics need to be cleaned before the signature. let mut generics = clean_ty_generics(cx, def_id); - let bound_vars = clean_bound_vars(sig.bound_vars()); + let bound_vars = clean_bound_vars(sig.bound_vars(), cx); // At the time of writing early & late-bound params are stored separately in rustc, // namely in `generics.params` and `bound_vars` respectively. diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index 2ab827b3ace..5cd5c434521 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -273,7 +273,7 @@ fn clean_poly_trait_ref_with_constraints<'tcx>( GenericBound::TraitBound( PolyTrait { trait_: clean_trait_ref_with_constraints(cx, poly_trait_ref, constraints), - generic_params: clean_bound_vars(poly_trait_ref.bound_vars()), + generic_params: clean_bound_vars(poly_trait_ref.bound_vars(), cx), }, hir::TraitBoundModifiers::NONE, ) @@ -325,24 +325,11 @@ pub(crate) fn clean_middle_const<'tcx>( ConstantKind::TyConst { expr: constant.skip_binder().to_string().into() } } -pub(crate) fn clean_middle_region(region: ty::Region<'_>) -> Option<Lifetime> { - match region.kind() { - ty::ReStatic => Some(Lifetime::statik()), - _ if !region.has_name() => None, - ty::ReBound(_, ty::BoundRegion { kind: ty::BoundRegionKind::Named(_, name), .. }) => { - Some(Lifetime(name)) - } - ty::ReEarlyParam(ref data) => Some(Lifetime(data.name)), - ty::ReBound(..) - | ty::ReLateParam(..) - | ty::ReVar(..) - | ty::ReError(_) - | ty::RePlaceholder(..) - | ty::ReErased => { - debug!("cannot clean region {region:?}"); - None - } - } +pub(crate) fn clean_middle_region<'tcx>( + region: ty::Region<'tcx>, + cx: &mut DocContext<'tcx>, +) -> Option<Lifetime> { + region.get_name(cx.tcx).map(Lifetime) } fn clean_where_predicate<'tcx>( @@ -384,7 +371,7 @@ pub(crate) fn clean_predicate<'tcx>( let bound_predicate = predicate.kind(); match bound_predicate.skip_binder() { ty::ClauseKind::Trait(pred) => clean_poly_trait_predicate(bound_predicate.rebind(pred), cx), - ty::ClauseKind::RegionOutlives(pred) => Some(clean_region_outlives_predicate(pred)), + ty::ClauseKind::RegionOutlives(pred) => Some(clean_region_outlives_predicate(pred, cx)), ty::ClauseKind::TypeOutlives(pred) => { Some(clean_type_outlives_predicate(bound_predicate.rebind(pred), cx)) } @@ -418,13 +405,16 @@ fn clean_poly_trait_predicate<'tcx>( }) } -fn clean_region_outlives_predicate(pred: ty::RegionOutlivesPredicate<'_>) -> WherePredicate { +fn clean_region_outlives_predicate<'tcx>( + pred: ty::RegionOutlivesPredicate<'tcx>, + cx: &mut DocContext<'tcx>, +) -> WherePredicate { let ty::OutlivesPredicate(a, b) = pred; WherePredicate::RegionPredicate { - lifetime: clean_middle_region(a).expect("failed to clean lifetime"), + lifetime: clean_middle_region(a, cx).expect("failed to clean lifetime"), bounds: vec![GenericBound::Outlives( - clean_middle_region(b).expect("failed to clean bounds"), + clean_middle_region(b, cx).expect("failed to clean bounds"), )], } } @@ -438,7 +428,7 @@ fn clean_type_outlives_predicate<'tcx>( WherePredicate::BoundPredicate { ty: clean_middle_ty(pred.rebind(ty), cx, None, None), bounds: vec![GenericBound::Outlives( - clean_middle_region(lt).expect("failed to clean lifetimes"), + clean_middle_region(lt, cx).expect("failed to clean lifetimes"), )], bound_params: Vec::new(), } @@ -1905,8 +1895,8 @@ fn clean_trait_object_lifetime_bound<'tcx>( match region.kind() { ty::ReStatic => Some(Lifetime::statik()), ty::ReEarlyParam(region) => Some(Lifetime(region.name)), - ty::ReBound(_, ty::BoundRegion { kind: ty::BoundRegionKind::Named(_, name), .. }) => { - Some(Lifetime(name)) + ty::ReBound(_, ty::BoundRegion { kind: ty::BoundRegionKind::Named(def_id), .. }) => { + Some(Lifetime(tcx.item_name(def_id))) } ty::ReBound(..) | ty::ReLateParam(_) @@ -1935,7 +1925,9 @@ fn can_elide_trait_object_lifetime_bound<'tcx>( match default { ObjectLifetimeDefault::Static => return region.kind() == ty::ReStatic, // FIXME(fmease): Don't compare lexically but respect de Bruijn indices etc. to handle shadowing correctly. - ObjectLifetimeDefault::Arg(default) => return region.get_name() == default.get_name(), + ObjectLifetimeDefault::Arg(default) => { + return region.get_name(tcx) == default.get_name(tcx); + } // > If there is more than one bound from the containing type then an explicit bound must be specified // Due to ambiguity there is no default trait-object lifetime and thus elision is impossible. // Don't elide the lifetime. @@ -1957,7 +1949,7 @@ fn can_elide_trait_object_lifetime_bound<'tcx>( // > If the trait is defined with a single lifetime bound then that bound is used. // > If 'static is used for any lifetime bound then 'static is used. // FIXME(fmease): Don't compare lexically but respect de Bruijn indices etc. to handle shadowing correctly. - [object_region] => object_region.get_name() == region.get_name(), + [object_region] => object_region.get_name(tcx) == region.get_name(tcx), // There are several distinct trait regions and none are `'static`. // Due to ambiguity there is no default trait-object lifetime and thus elision is impossible. // Don't elide the lifetime. @@ -2051,7 +2043,7 @@ pub(crate) fn clean_middle_ty<'tcx>( RawPointer(mutbl, Box::new(clean_middle_ty(bound_ty.rebind(ty), cx, None, None))) } ty::Ref(r, ty, mutbl) => BorrowedRef { - lifetime: clean_middle_region(r), + lifetime: clean_middle_region(r, cx), mutability: mutbl, type_: Box::new(clean_middle_ty( bound_ty.rebind(ty), @@ -2064,7 +2056,7 @@ pub(crate) fn clean_middle_ty<'tcx>( // FIXME: should we merge the outer and inner binders somehow? let sig = bound_ty.skip_binder().fn_sig(cx.tcx); let decl = clean_poly_fn_sig(cx, None, sig); - let generic_params = clean_bound_vars(sig.bound_vars()); + let generic_params = clean_bound_vars(sig.bound_vars(), cx); BareFunction(Box::new(BareFunctionDecl { safety: sig.safety(), @@ -2074,7 +2066,7 @@ pub(crate) fn clean_middle_ty<'tcx>( })) } ty::UnsafeBinder(inner) => { - let generic_params = clean_bound_vars(inner.bound_vars()); + let generic_params = clean_bound_vars(inner.bound_vars(), cx); let ty = clean_middle_ty(inner.into(), cx, None, None); UnsafeBinder(Box::new(UnsafeBinderTy { generic_params, ty })) } @@ -2148,10 +2140,13 @@ pub(crate) fn clean_middle_ty<'tcx>( .iter() .flat_map(|pred| pred.bound_vars()) .filter_map(|var| match var { - ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id, name)) - if name != kw::UnderscoreLifetime => - { - Some(GenericParamDef::lifetime(def_id, name)) + ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id)) => { + let name = cx.tcx.item_name(def_id); + if name != kw::UnderscoreLifetime { + Some(GenericParamDef::lifetime(def_id, name)) + } else { + None + } } _ => None, }) @@ -2226,7 +2221,7 @@ pub(crate) fn clean_middle_ty<'tcx>( } ty::Bound(_, ref ty) => match ty.kind { - ty::BoundTyKind::Param(_, name) => Generic(name), + ty::BoundTyKind::Param(def_id) => Generic(cx.tcx.item_name(def_id)), ty::BoundTyKind::Anon => panic!("unexpected anonymous bound type variable"), }, @@ -2282,7 +2277,7 @@ fn clean_middle_opaque_bounds<'tcx>( let trait_ref = match bound_predicate.skip_binder() { ty::ClauseKind::Trait(tr) => bound_predicate.rebind(tr.trait_ref), ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(_ty, reg)) => { - return clean_middle_region(reg).map(GenericBound::Outlives); + return clean_middle_region(reg, cx).map(GenericBound::Outlives); } _ => return None, }; @@ -3182,16 +3177,23 @@ fn clean_assoc_item_constraint<'tcx>( } } -fn clean_bound_vars(bound_vars: &ty::List<ty::BoundVariableKind>) -> Vec<GenericParamDef> { +fn clean_bound_vars<'tcx>( + bound_vars: &ty::List<ty::BoundVariableKind>, + cx: &mut DocContext<'tcx>, +) -> Vec<GenericParamDef> { bound_vars .into_iter() .filter_map(|var| match var { - ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id, name)) - if name != kw::UnderscoreLifetime => - { - Some(GenericParamDef::lifetime(def_id, name)) + ty::BoundVariableKind::Region(ty::BoundRegionKind::Named(def_id)) => { + let name = cx.tcx.item_name(def_id); + if name != kw::UnderscoreLifetime { + Some(GenericParamDef::lifetime(def_id, name)) + } else { + None + } } - ty::BoundVariableKind::Ty(ty::BoundTyKind::Param(def_id, name)) => { + ty::BoundVariableKind::Ty(ty::BoundTyKind::Param(def_id)) => { + let name = cx.tcx.item_name(def_id); Some(GenericParamDef { name, def_id, diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index de920469fdc..a05aab22f1e 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -784,7 +784,7 @@ impl Item { // don't want it it `Item::attrs`. hir::Attribute::Parsed(AttributeKind::Deprecation { .. }) => None, // We have separate pretty-printing logic for `#[repr(..)]` attributes. - hir::Attribute::Parsed(AttributeKind::Repr(..)) => None, + hir::Attribute::Parsed(AttributeKind::Repr { .. }) => None, // target_feature is special-cased because cargo-semver-checks uses it hir::Attribute::Parsed(AttributeKind::TargetFeature(features, _)) => { let mut output = String::new(); diff --git a/src/librustdoc/clean/utils.rs b/src/librustdoc/clean/utils.rs index 2c9878636ab..bf3f7607274 100644 --- a/src/librustdoc/clean/utils.rs +++ b/src/librustdoc/clean/utils.rs @@ -125,9 +125,9 @@ pub(crate) fn clean_middle_generic_args<'tcx>( } match arg.skip_binder().kind() { - GenericArgKind::Lifetime(lt) => { - Some(GenericArg::Lifetime(clean_middle_region(lt).unwrap_or(Lifetime::elided()))) - } + GenericArgKind::Lifetime(lt) => Some(GenericArg::Lifetime( + clean_middle_region(lt, cx).unwrap_or(Lifetime::elided()), + )), GenericArgKind::Type(ty) => Some(GenericArg::Type(clean_middle_ty( arg.rebind(ty), cx, diff --git a/src/llvm-project b/src/llvm-project -Subproject ed6566573eb21b00a3f87815e14ff766fd56ef4 +Subproject 9b1bf4cf041c1c1fe62cf03891ac90431615e78 diff --git a/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs b/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs index b9ae9afe851..8b6bfaebbe5 100644 --- a/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs +++ b/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs @@ -266,7 +266,7 @@ impl<'tcx> LateLintPass<'tcx> for ArbitrarySourceItemOrdering { .tcx .hir_attrs(item.hir_id()) .iter() - .any(|attr| matches!(attr, Attribute::Parsed(AttributeKind::Repr(..)))) + .any(|attr| matches!(attr, Attribute::Parsed(AttributeKind::Repr{ .. }))) { // Do not lint items with a `#[repr]` attribute as their layout may be imposed by an external API. return; diff --git a/src/tools/clippy/clippy_lints/src/attrs/repr_attributes.rs b/src/tools/clippy/clippy_lints/src/attrs/repr_attributes.rs index 05d8a8c26d1..3e8808cec61 100644 --- a/src/tools/clippy/clippy_lints/src/attrs/repr_attributes.rs +++ b/src/tools/clippy/clippy_lints/src/attrs/repr_attributes.rs @@ -9,7 +9,7 @@ use clippy_utils::msrvs::{self, Msrv}; use super::REPR_PACKED_WITHOUT_ABI; pub(super) fn check(cx: &LateContext<'_>, item_span: Span, attrs: &[Attribute], msrv: Msrv) { - if let Some(reprs) = find_attr!(attrs, AttributeKind::Repr(r) => r) { + if let Some(reprs) = find_attr!(attrs, AttributeKind::Repr { reprs, .. } => reprs) { let packed_span = reprs .iter() .find(|(r, _)| matches!(r, ReprAttr::ReprPacked(..))) diff --git a/src/tools/clippy/clippy_lints/src/default_union_representation.rs b/src/tools/clippy/clippy_lints/src/default_union_representation.rs index 615421f3a40..9bf2144e445 100644 --- a/src/tools/clippy/clippy_lints/src/default_union_representation.rs +++ b/src/tools/clippy/clippy_lints/src/default_union_representation.rs @@ -99,5 +99,5 @@ fn is_zst<'tcx>(cx: &LateContext<'tcx>, field: &FieldDef, args: ty::GenericArgsR fn has_c_repr_attr(cx: &LateContext<'_>, hir_id: HirId) -> bool { let attrs = cx.tcx.hir_attrs(hir_id); - find_attr!(attrs, AttributeKind::Repr(r) if r.iter().any(|(x, _)| *x == ReprAttr::ReprC)) + find_attr!(attrs, AttributeKind::Repr { reprs, .. } if reprs.iter().any(|(x, _)| *x == ReprAttr::ReprC)) } diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs index a8b33418c8c..c01f0ffaac9 100644 --- a/src/tools/clippy/clippy_utils/src/lib.rs +++ b/src/tools/clippy/clippy_utils/src/lib.rs @@ -1761,7 +1761,7 @@ pub fn has_attr(attrs: &[hir::Attribute], symbol: Symbol) -> bool { } pub fn has_repr_attr(cx: &LateContext<'_>, hir_id: HirId) -> bool { - find_attr!(cx.tcx.hir_attrs(hir_id), AttributeKind::Repr(..)) + find_attr!(cx.tcx.hir_attrs(hir_id), AttributeKind::Repr { .. }) } pub fn any_parent_has_attr(tcx: TyCtxt<'_>, node: HirId, symbol: Symbol) -> bool { diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs index cdce5d941d0..7122746fa87 100644 --- a/src/tools/compiletest/src/common.rs +++ b/src/tools/compiletest/src/common.rs @@ -172,207 +172,422 @@ pub enum Sanitizer { Hwaddress, } -/// Configuration for compiletest +/// Configuration for `compiletest` *per invocation*. +/// +/// In terms of `bootstrap`, this means that `./x test tests/ui tests/run-make` actually correspond +/// to *two* separate invocations of `compiletest`. +/// +/// FIXME: this `Config` struct should be broken up into smaller logically contained sub-config +/// structs, it's too much of a "soup" of everything at the moment. +/// +/// # Configuration sources +/// +/// Configuration values for `compiletest` comes from several sources: +/// +/// - CLI args passed from `bootstrap` while running the `compiletest` binary. +/// - Env vars. +/// - Discovery (e.g. trying to identify a suitable debugger based on filesystem discovery). +/// - Cached output of running the `rustc` under test (e.g. output of `rustc` print requests). +/// +/// FIXME: make sure we *clearly* account for sources of *all* config options. +/// +/// FIXME: audit these options to make sure we are not hashing less than necessary for build stamp +/// (for changed test detection). #[derive(Debug, Default, Clone)] pub struct Config { - /// `true` to overwrite stderr/stdout files instead of complaining about changes in output. + /// Some test [`Mode`]s support [snapshot testing], where a *reference snapshot* of outputs (of + /// `stdout`, `stderr`, or other form of artifacts) can be compared to the *actual output*. + /// + /// This option can be set to `true` to update the *reference snapshots* in-place, otherwise + /// `compiletest` will only try to compare. + /// + /// [snapshot testing]: https://jestjs.io/docs/snapshot-testing pub bless: bool, - /// Stop as soon as possible after any test fails. - /// May run a few more tests before stopping, due to threading. + /// Attempt to stop as soon as possible after any test fails. We may still run a few more tests + /// before stopping when multiple test threads are used. pub fail_fast: bool, - /// The library paths required for running the compiler. + /// Path to libraries needed to run the *staged* `rustc`-under-test on the **host** platform. + /// + /// FIXME: maybe rename this to reflect (1) which target platform (host, not target), and (2) + /// which `rustc` (the `rustc`-under-test, not the stage 0 `rustc` unless forced). pub compile_lib_path: Utf8PathBuf, - /// The library paths required for running compiled programs. + /// Path to libraries needed to run the compiled executable for the **target** platform. This + /// corresponds to the **target** sysroot libraries, including the **target** standard library. + /// + /// FIXME: maybe rename this to reflect (1) which target platform (target, not host), and (2) + /// what "run libraries" are against. + /// + /// FIXME: this is very under-documented in conjunction with the `remote-test-client` scheme and + /// `RUNNER` scheme to actually run the target executable under the target platform environment, + /// cf. [`Self::remote_test_client`] and [`Self::runner`]. pub run_lib_path: Utf8PathBuf, - /// The rustc executable. + /// Path to the *staged* `rustc`-under-test. Unless forced, this `rustc` is *staged*, and must + /// not be confused with [`Self::stage0_rustc_path`]. + /// + /// FIXME: maybe rename this to reflect that this is the `rustc`-under-test. pub rustc_path: Utf8PathBuf, - /// The cargo executable. + /// Path to a *staged* **host** platform cargo executable (unless stage 0 is forced). This + /// staged `cargo` is only used within `run-make` test recipes during recipe run time (and is + /// *not* used to compile the test recipes), and so must be staged as there may be differences + /// between e.g. beta `cargo` vs in-tree `cargo`. + /// + /// FIXME: maybe rename this to reflect that this is a *staged* host cargo. + /// + /// FIXME(#134109): split `run-make` into two test suites, a test suite *with* staged cargo, and + /// another test suite *without*. pub cargo_path: Option<Utf8PathBuf>, - /// Rustc executable used to compile run-make recipes. + /// Path to the stage 0 `rustc` used to build `run-make` recipes. This must not be confused with + /// [`Self::rustc_path`]. pub stage0_rustc_path: Option<Utf8PathBuf>, - /// The rustdoc executable. + /// Path to the `rustdoc`-under-test. Like [`Self::rustc_path`], this `rustdoc` is *staged*. pub rustdoc_path: Option<Utf8PathBuf>, - /// The coverage-dump executable. + /// Path to the `src/tools/coverage-dump/` bootstrap tool executable. pub coverage_dump_path: Option<Utf8PathBuf>, - /// The Python executable to use for LLDB and htmldocck. + /// Path to the Python 3 executable to use for LLDB and htmldocck. + /// + /// FIXME: the `lldb` setup currently requires I believe Python 3.10 **exactly**, it can't even + /// be Python 3.11 or 3.9... pub python: String, - /// The jsondocck executable. + /// Path to the `src/tools/jsondocck/` bootstrap tool executable. pub jsondocck_path: Option<String>, - /// The jsondoclint executable. + /// Path to the `src/tools/jsondoclint/` bootstrap tool executable. pub jsondoclint_path: Option<String>, - /// The LLVM `FileCheck` binary path. + /// Path to a host LLVM `FileCheck` executable. pub llvm_filecheck: Option<Utf8PathBuf>, - /// Path to LLVM's bin directory. + /// Path to a host LLVM bintools directory. pub llvm_bin_dir: Option<Utf8PathBuf>, - /// The path to the Clang executable to run Clang-based tests with. If - /// `None` then these tests will be ignored. + /// The path to the **target** `clang` executable to run `clang`-based tests with. If `None`, + /// then these tests will be ignored. pub run_clang_based_tests_with: Option<String>, - /// The directory containing the sources. + /// Path to the directory containing the sources. This corresponds to the root folder of a + /// `rust-lang/rust` checkout. + /// + /// FIXME: this name is confusing, because this is actually `$checkout_root`, **not** the + /// `$checkout_root/src/` folder. pub src_root: Utf8PathBuf, - /// The directory containing the test suite sources. Must be a subdirectory of `src_root`. + + /// Path to the directory containing the test suites sources. This corresponds to the + /// `$src_root/tests/` folder. + /// + /// Must be an immediate subdirectory of [`Self::src_root`]. + /// + /// FIXME: this name is also confusing, maybe just call it `tests_root`. pub src_test_suite_root: Utf8PathBuf, - /// Root build directory (e.g. `build/`). + /// Path to the build directory (e.g. `build/`). pub build_root: Utf8PathBuf, - /// Test suite specific build directory (e.g. `build/host/test/ui/`). + + /// Path to the test suite specific build directory (e.g. `build/host/test/ui/`). + /// + /// Must be a subdirectory of [`Self::build_root`]. pub build_test_suite_root: Utf8PathBuf, - /// The directory containing the compiler sysroot + /// Path to the directory containing the sysroot of the `rustc`-under-test. + /// + /// When stage 0 is forced, this will correspond to the sysroot *of* that specified stage 0 + /// `rustc`. + /// + /// FIXME: this name is confusing, because it doesn't specify *which* compiler this sysroot + /// corresponds to. It's actually the `rustc`-under-test, and not the bootstrap `rustc`, unless + /// stage 0 is forced and no custom stage 0 `rustc` was otherwise specified (so that it + /// *happens* to run against the bootstrap `rustc`, but this non-custom bootstrap `rustc` case + /// is not really supported). pub sysroot_base: Utf8PathBuf, /// The number of the stage under test. pub stage: u32, + /// The id of the stage under test (stage1-xxx, etc). + /// + /// FIXME: reconsider this string; this is hashed for test build stamp. pub stage_id: String, - /// The test mode, e.g. ui or debuginfo. + /// The test [`Mode`]. E.g. [`Mode::Ui`]. Each test mode can correspond to one or more test + /// suites. + /// + /// FIXME: stop using stringly-typed test suites! pub mode: Mode, - /// The test suite (essentially which directory is running, but without the - /// directory prefix such as tests) + /// The test suite. + /// + /// Example: `tests/ui/` is the "UI" test *suite*, which happens to also be of the [`Mode::Ui`] + /// test *mode*. + /// + /// Note that the same test directory (e.g. `tests/coverage/`) may correspond to multiple test + /// modes, e.g. `tests/coverage/` can be run under both [`Mode::CoverageRun`] and + /// [`Mode::CoverageMap`]. + /// + /// FIXME: stop using stringly-typed test suites! pub suite: String, - /// The debugger to use in debuginfo mode. Unset otherwise. + /// When specified, **only** the specified [`Debugger`] will be used to run against the + /// `tests/debuginfo` test suite. When unspecified, `compiletest` will attempt to find all three + /// of {`lldb`, `cdb`, `gdb`} implicitly, and then try to run the `debuginfo` test suite against + /// all three debuggers. + /// + /// FIXME: this implicit behavior is really nasty, in that it makes it hard for the user to + /// control *which* debugger(s) are available and used to run the debuginfo test suite. We + /// should have `bootstrap` allow the user to *explicitly* configure the debuggers, and *not* + /// try to implicitly discover some random debugger from the user environment. This makes the + /// debuginfo test suite particularly hard to work with. pub debugger: Option<Debugger>, - /// Run ignored tests + /// Run ignored tests *unconditionally*, overriding their ignore reason. + /// + /// FIXME: this is wired up through the test execution logic, but **not** accessible from + /// `bootstrap` directly; `compiletest` exposes this as `--ignored`. I.e. you'd have to use `./x + /// test $test_suite -- --ignored=true`. pub run_ignored: bool, - /// Whether rustc was built with debug assertions. + /// Whether *staged* `rustc`-under-test was built with debug assertions. + /// + /// FIXME: make it clearer that this refers to the staged `rustc`-under-test, not stage 0 + /// `rustc`. pub with_rustc_debug_assertions: bool, - /// Whether std was built with debug assertions. + /// Whether *staged* `std` was built with debug assertions. + /// + /// FIXME: make it clearer that this refers to the staged `std`, not stage 0 `std`. pub with_std_debug_assertions: bool, - /// Only run tests that match these filters + /// Only run tests that match these filters (using `libtest` "test name contains" filter logic). + /// + /// FIXME(#139660): the current hand-rolled test executor intentionally mimics the `libtest` + /// "test name contains" filter matching logic to preserve previous `libtest` executor behavior, + /// but this is often not intuitive. We should consider changing that behavior with an MCP to do + /// test path *prefix* matching which better corresponds to how `compiletest` `tests/` are + /// organized, and how users would intuitively expect the filtering logic to work like. pub filters: Vec<String>, - /// Skip tests matching these substrings. Corresponds to - /// `test::TestOpts::skip`. `filter_exact` does not apply to these flags. + /// Skip tests matching these substrings. The matching logic exactly corresponds to + /// [`Self::filters`] but inverted. + /// + /// FIXME(#139660): ditto on test matching behavior. pub skip: Vec<String>, - /// Exactly match the filter, rather than a substring + /// Exactly match the filter, rather than a substring. + /// + /// FIXME(#139660): ditto on test matching behavior. pub filter_exact: bool, - /// Force the pass mode of a check/build/run-pass test to this mode. + /// Force the pass mode of a check/build/run test to instead use this mode instead. + /// + /// FIXME: make it even more obvious (especially in PR CI where `--pass=check` is used) when a + /// pass mode is forced when the test fails, because it can be very non-obvious when e.g. an + /// error is emitted only when `//@ build-pass` but not `//@ check-pass`. pub force_pass_mode: Option<PassMode>, - /// Explicitly enable or disable running. + /// Explicitly enable or disable running of the target test binary. + /// + /// FIXME: this scheme is a bit confusing, and at times questionable. Re-evaluate this run + /// scheme. + /// + /// FIXME: Currently `--run` is a tri-state, it can be `--run={auto,always,never}`, and when + /// `--run=auto` is specified, it's run if the platform doesn't end with `-fuchsia`. See + /// [`Config::run_enabled`]. pub run: Option<bool>, - /// A command line to prefix program execution with, - /// for running under valgrind for example. + /// A command line to prefix target program execution with, for running under valgrind for + /// example, i.e. `$runner target.exe [args..]`. Similar to `CARGO_*_RUNNER` configuration. + /// + /// Note: this is not to be confused with [`Self::remote_test_client`], which is a different + /// scheme. /// - /// Similar to `CARGO_*_RUNNER` configuration. + /// FIXME: the runner scheme is very under-documented. pub runner: Option<String>, - /// Flags to pass to the compiler when building for the host + /// Compiler flags to pass to the *staged* `rustc`-under-test when building for the **host** + /// platform. pub host_rustcflags: Vec<String>, - /// Flags to pass to the compiler when building for the target + /// Compiler flags to pass to the *staged* `rustc`-under-test when building for the **target** + /// platform. pub target_rustcflags: Vec<String>, - /// Whether the compiler and stdlib has been built with randomized struct layouts + /// Whether the *staged* `rustc`-under-test and the associated *staged* `std` has been built + /// with randomized struct layouts. pub rust_randomized_layout: bool, - /// Whether tests should be optimized by default. Individual test-suites and test files may - /// override this setting. + /// Whether tests should be optimized by default (`-O`). Individual test suites and test files + /// may override this setting. + /// + /// FIXME: this flag / config option is somewhat misleading. For instance, in ui tests, it's + /// *only* applied to the [`PassMode::Run`] test crate and not its auxiliaries. pub optimize_tests: bool, - /// Target system to be tested + /// Target platform tuple. pub target: String, - /// Host triple for the compiler being invoked + /// Host platform tuple. pub host: String, - /// Path to / name of the Microsoft Console Debugger (CDB) executable + /// Path to / name of the Microsoft Console Debugger (CDB) executable. + /// + /// FIXME: this is an *opt-in* "override" option. When this isn't provided, we try to conjure a + /// cdb by looking at the user's program files on Windows... See `debuggers::find_cdb`. pub cdb: Option<Utf8PathBuf>, - /// Version of CDB + /// Version of CDB. + /// + /// FIXME: `cdb_version` is *derived* from cdb, but it's *not* technically a config! + /// + /// FIXME: audit cdb version gating. pub cdb_version: Option<[u16; 4]>, - /// Path to / name of the GDB executable + /// Path to / name of the GDB executable. + /// + /// FIXME: the fallback path when `gdb` isn't provided tries to find *a* `gdb` or `gdb.exe` from + /// `PATH`, which is... arguably questionable. + /// + /// FIXME: we are propagating a python from `PYTHONPATH`, not from an explicit config for gdb + /// debugger script. pub gdb: Option<String>, /// Version of GDB, encoded as ((major * 1000) + minor) * 1000 + patch + /// + /// FIXME: this gdb version gating scheme is possibly questionable -- gdb does not use semver, + /// only its major version is likely materially meaningful, cf. + /// <https://sourceware.org/gdb/wiki/Internals%20Versions>. Even the major version I'm not sure + /// is super meaningful. Maybe min gdb `major.minor` version gating is sufficient for the + /// purposes of debuginfo tests? + /// + /// FIXME: `gdb_version` is *derived* from gdb, but it's *not* technically a config! pub gdb_version: Option<u32>, - /// Version of LLDB + /// Version of LLDB. + /// + /// FIXME: `lldb_version` is *derived* from lldb, but it's *not* technically a config! pub lldb_version: Option<u32>, - /// Version of LLVM + /// Version of LLVM. + /// + /// FIXME: Audit the fallback derivation of + /// [`crate::directives::extract_llvm_version_from_binary`], that seems very questionable? pub llvm_version: Option<Version>, - /// Is LLVM a system LLVM + /// Is LLVM a system LLVM. pub system_llvm: bool, - /// Path to the android tools + /// Path to the android tools. + /// + /// Note: this is only used for android gdb debugger script in the debuginfo test suite. + /// + /// FIXME: take a look at this; this is piggy-backing off of gdb code paths but only for + /// `arm-linux-androideabi` target. pub android_cross_path: Utf8PathBuf, - /// Extra parameter to run adb on arm-linux-androideabi + /// Extra parameter to run adb on `arm-linux-androideabi`. + /// + /// FIXME: is this *only* `arm-linux-androideabi`, or is it also for other Tier 2/3 android + /// targets? + /// + /// FIXME: take a look at this; this is piggy-backing off of gdb code paths but only for + /// `arm-linux-androideabi` target. pub adb_path: String, - /// Extra parameter to run test suite on arm-linux-androideabi + /// Extra parameter to run test suite on `arm-linux-androideabi`. + /// + /// FIXME: is this *only* `arm-linux-androideabi`, or is it also for other Tier 2/3 android + /// targets? + /// + /// FIXME: take a look at this; this is piggy-backing off of gdb code paths but only for + /// `arm-linux-androideabi` target. pub adb_test_dir: String, - /// status whether android device available or not + /// Status whether android device available or not. When unavailable, this will cause tests to + /// panic when the test binary is attempted to be run. + /// + /// FIXME: take a look at this; this also influences adb in gdb code paths in a strange way. pub adb_device_status: bool, - /// the path containing LLDB's Python module + /// Path containing LLDB's Python module. + /// + /// FIXME: `PYTHONPATH` takes precedence over this flag...? See `runtest::run_lldb`. pub lldb_python_dir: Option<String>, - /// Explain what's going on + /// Verbose dump a lot of info. + /// + /// FIXME: this is *way* too coarse; the user can't select *which* info to verbosely dump. pub verbose: bool, - /// Print one character per test instead of one line + /// (Useless) Adjust libtest output format. + /// + /// FIXME: the hand-rolled executor does not support non-JSON output, because `compiletest` need + /// to package test outcome as `libtest`-esque JSON that `bootstrap` can intercept *anyway*. + /// However, now that we don't use the `libtest` executor, this is useless. pub format: OutputFormat, - /// Whether to use colors in test. + /// Whether to use colors in test output. + /// + /// Note: the exact control mechanism is delegated to [`colored`]. pub color: ColorConfig, - /// where to find the remote test client process, if we're using it + /// Where to find the remote test client process, if we're using it. + /// + /// Note: this is *only* used for target platform executables created by `run-make` test + /// recipes. + /// + /// Note: this is not to be confused with [`Self::runner`], which is a different scheme. + /// + /// FIXME: the `remote_test_client` scheme is very under-documented. pub remote_test_client: Option<Utf8PathBuf>, - /// mode describing what file the actual ui output will be compared to + /// [`CompareMode`] describing what file the actual ui output will be compared to. + /// + /// FIXME: currently, [`CompareMode`] is a mishmash of lot of things (different borrow-checker + /// model, different trait solver, different debugger, etc.). pub compare_mode: Option<CompareMode>, /// If true, this will generate a coverage file with UI test files that run `MachineApplicable` /// diagnostics but are missing `run-rustfix` annotations. The generated coverage file is - /// created in `<test_suite_build_root>/rustfix_missing_coverage.txt` + /// created in `$test_suite_build_root/rustfix_missing_coverage.txt` pub rustfix_coverage: bool, - /// whether to run `tidy` (html-tidy) when a rustdoc test fails + /// Whether to run `tidy` (html-tidy) when a rustdoc test fails. pub has_html_tidy: bool, - /// whether to run `enzyme` autodiff tests + /// Whether to run `enzyme` autodiff tests. pub has_enzyme: bool, - /// The current Rust channel + /// The current Rust channel info. + /// + /// FIXME: treat this more carefully; "stable", "beta" and "nightly" are definitely valid, but + /// channel might also be "dev" or such, which should be treated as "nightly". pub channel: String, - /// Whether adding git commit information such as the commit hash has been enabled for building + /// Whether adding git commit information such as the commit hash has been enabled for building. + /// + /// FIXME: `compiletest` cannot trust `bootstrap` for this information, because `bootstrap` can + /// have bugs and had bugs on that logic. We need to figure out how to obtain this e.g. directly + /// from CI or via git locally. pub git_hash: bool, - /// The default Rust edition + /// The default Rust edition. + /// + /// FIXME: perform stronger validation for this. There are editions that *definitely* exists, + /// but there might also be "future" edition. pub edition: Option<String>, - // Configuration for various run-make tests frobbing things like C compilers - // or querying about various LLVM component information. + // Configuration for various run-make tests frobbing things like C compilers or querying about + // various LLVM component information. + // + // FIXME: this really should be better packaged together. + // FIXME: these need better docs, e.g. for *host*, or for *target*? pub cc: String, pub cxx: String, pub cflags: String, @@ -382,41 +597,63 @@ pub struct Config { pub host_linker: Option<String>, pub llvm_components: String, - /// Path to a NodeJS executable. Used for JS doctests, emscripten and WASM tests + /// Path to a NodeJS executable. Used for JS doctests, emscripten and WASM tests. pub nodejs: Option<String>, - /// Path to a npm executable. Used for rustdoc GUI tests + /// Path to a npm executable. Used for rustdoc GUI tests. pub npm: Option<String>, /// Whether to rerun tests even if the inputs are unchanged. pub force_rerun: bool, - /// Only rerun the tests that result has been modified according to Git status + /// Only rerun the tests that result has been modified according to `git status`. + /// + /// FIXME: this is undocumented. + /// + /// FIXME: how does this interact with [`Self::force_rerun`]? pub only_modified: bool, + // FIXME: these are really not "config"s, but rather are information derived from + // `rustc`-under-test. This poses an interesting conundrum: if we're testing the + // `rustc`-under-test, can we trust its print request outputs and target cfgs? In theory, this + // itself can break or be unreliable -- ideally, we'd be sharing these kind of information not + // through `rustc`-under-test's execution output. In practice, however, print requests are very + // unlikely to completely break (we also have snapshot ui tests for them). Furthermore, even if + // we share them via some kind of static config, that static config can still be wrong! Who + // tests the tester? Therefore, we make a pragmatic compromise here, and use information derived + // from print requests produced by the `rustc`-under-test. + // + // FIXME: move them out from `Config`, because they are *not* configs. pub target_cfgs: OnceLock<TargetCfgs>, pub builtin_cfg_names: OnceLock<HashSet<String>>, pub supported_crate_types: OnceLock<HashSet<String>>, + /// FIXME: this is why we still need to depend on *staged* `std`, it's because we currently rely + /// on `#![feature(internal_output_capture)]` for [`std::io::set_output_capture`] to implement + /// `libtest`-esque `--no-capture`. + /// + /// FIXME: rename this to the more canonical `no_capture`, or better, invert this to `capture` + /// to avoid `!nocapture` double-negatives. pub nocapture: bool, - // Needed both to construct build_helper::git::GitConfig + /// Needed both to construct [`build_helper::git::GitConfig`]. pub nightly_branch: String, pub git_merge_commit_email: String, - /// True if the profiler runtime is enabled for this target. - /// Used by the "needs-profiler-runtime" directive in test files. + /// True if the profiler runtime is enabled for this target. Used by the + /// `needs-profiler-runtime` directive in test files. pub profiler_runtime: bool, /// Command for visual diff display, e.g. `diff-tool --color=always`. pub diff_command: Option<String>, - /// Path to minicore aux library, used for `no_core` tests that need `core` stubs in - /// cross-compilation scenarios that do not otherwise want/need to `-Zbuild-std`. Used in e.g. - /// ABI tests. + /// Path to minicore aux library (`tests/auxiliary/minicore.rs`), used for `no_core` tests that + /// need `core` stubs in cross-compilation scenarios that do not otherwise want/need to + /// `-Zbuild-std`. Used in e.g. ABI tests. pub minicore_path: Utf8PathBuf, } impl Config { + /// FIXME: this run scheme is... confusing. pub fn run_enabled(&self) -> bool { self.run.unwrap_or_else(|| { // Auto-detect whether to run based on the platform. diff --git a/src/tools/compiletest/src/debuggers.rs b/src/tools/compiletest/src/debuggers.rs index c133d7fd4fb..0edc3d82d4f 100644 --- a/src/tools/compiletest/src/debuggers.rs +++ b/src/tools/compiletest/src/debuggers.rs @@ -51,6 +51,7 @@ pub(crate) fn configure_gdb(config: &Config) -> Option<Arc<Config>> { pub(crate) fn configure_lldb(config: &Config) -> Option<Arc<Config>> { config.lldb_python_dir.as_ref()?; + // FIXME: this is super old if let Some(350) = config.lldb_version { println!( "WARNING: The used version of LLDB (350) has a \ @@ -78,6 +79,7 @@ fn is_pc_windows_msvc_target(target: &str) -> bool { target.ends_with("-pc-windows-msvc") } +/// FIXME: this is very questionable... fn find_cdb(target: &str) -> Option<Utf8PathBuf> { if !(cfg!(windows) && is_pc_windows_msvc_target(target)) { return None; diff --git a/src/tools/compiletest/src/executor.rs b/src/tools/compiletest/src/executor.rs index 0c4ef36828a..df64f12784f 100644 --- a/src/tools/compiletest/src/executor.rs +++ b/src/tools/compiletest/src/executor.rs @@ -207,9 +207,9 @@ impl TestOutcome { /// /// Adapted from `filter_tests` in libtest. /// -/// FIXME(#139660): After the libtest dependency is removed, redesign the whole -/// filtering system to do a better job of understanding and filtering _paths_, -/// instead of being tied to libtest's substring/exact matching behaviour. +/// FIXME(#139660): After the libtest dependency is removed, redesign the whole filtering system to +/// do a better job of understanding and filtering _paths_, instead of being tied to libtest's +/// substring/exact matching behaviour. fn filter_tests(opts: &Config, tests: Vec<CollectedTest>) -> Vec<CollectedTest> { let mut filtered = tests; @@ -235,9 +235,9 @@ fn filter_tests(opts: &Config, tests: Vec<CollectedTest>) -> Vec<CollectedTest> /// /// Copied from `get_concurrency` in libtest. /// -/// FIXME(#139660): After the libtest dependency is removed, consider making -/// bootstrap specify the number of threads on the command-line, instead of -/// propagating the `RUST_TEST_THREADS` environment variable. +/// FIXME(#139660): After the libtest dependency is removed, consider making bootstrap specify the +/// number of threads on the command-line, instead of propagating the `RUST_TEST_THREADS` +/// environment variable. fn get_concurrency() -> usize { if let Ok(value) = env::var("RUST_TEST_THREADS") { match value.parse::<NonZero<usize>>().ok() { diff --git a/src/tools/compiletest/src/lib.rs b/src/tools/compiletest/src/lib.rs index dfce4b8b408..9819079e284 100644 --- a/src/tools/compiletest/src/lib.rs +++ b/src/tools/compiletest/src/lib.rs @@ -242,9 +242,12 @@ pub fn parse_config(args: Vec<String>) -> Config { let target = opt_str2(matches.opt_str("target")); let android_cross_path = opt_path(matches, "android-cross-path"); + // FIXME: `cdb_version` is *derived* from cdb, but it's *not* technically a config! let (cdb, cdb_version) = debuggers::analyze_cdb(matches.opt_str("cdb"), &target); + // FIXME: `gdb_version` is *derived* from gdb, but it's *not* technically a config! let (gdb, gdb_version) = debuggers::analyze_gdb(matches.opt_str("gdb"), &target, &android_cross_path); + // FIXME: `lldb_version` is *derived* from lldb, but it's *not* technically a config! let lldb_version = matches.opt_str("lldb-version").as_deref().and_then(debuggers::extract_lldb_version); let color = match matches.opt_str("color").as_deref() { @@ -253,6 +256,9 @@ pub fn parse_config(args: Vec<String>) -> Config { Some("never") => ColorConfig::NeverColor, Some(x) => panic!("argument for --color must be auto, always, or never, but found `{}`", x), }; + // FIXME: this is very questionable, we really should be obtaining LLVM version info from + // `bootstrap`, and not trying to be figuring out that in `compiletest` by running the + // `FileCheck` binary. let llvm_version = matches.opt_str("llvm-version").as_deref().map(directives::extract_llvm_version).or_else( || directives::extract_llvm_version_from_binary(&matches.opt_str("llvm-filecheck")?), @@ -370,6 +376,7 @@ pub fn parse_config(args: Vec<String>) -> Config { mode.parse::<PassMode>() .unwrap_or_else(|_| panic!("unknown `--pass` option `{}` given", mode)) }), + // FIXME: this run scheme is... confusing. run: matches.opt_str("run").and_then(|mode| match mode.as_str() { "auto" => None, "always" => Some(true), @@ -545,6 +552,10 @@ pub fn run_tests(config: Arc<Config>) { Some(Debugger::Cdb) => configs.extend(debuggers::configure_cdb(&config)), Some(Debugger::Gdb) => configs.extend(debuggers::configure_gdb(&config)), Some(Debugger::Lldb) => configs.extend(debuggers::configure_lldb(&config)), + // FIXME: the *implicit* debugger discovery makes it really difficult to control + // which {`cdb`, `gdb`, `lldb`} are used. These should **not** be implicitly + // discovered by `compiletest`; these should be explicit `bootstrap` configuration + // options that are passed to `compiletest`! None => { configs.extend(debuggers::configure_cdb(&config)); configs.extend(debuggers::configure_gdb(&config)); diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs index f8bf4ee3022..3e879e0e4bb 100644 --- a/src/tools/compiletest/src/runtest.rs +++ b/src/tools/compiletest/src/runtest.rs @@ -121,6 +121,8 @@ pub fn run(config: Arc<Config>, testpaths: &TestPaths, revision: Option<&str>) { } _ => { + // FIXME: this logic seems strange as well. + // android has its own gdb handling if config.debugger == Some(Debugger::Gdb) && config.gdb.is_none() { panic!("gdb not available but debuginfo gdb debuginfo test requested"); @@ -1055,18 +1057,20 @@ impl<'test> TestCx<'test> { let proc_res = match &*self.config.target { // This is pretty similar to below, we're transforming: // - // program arg1 arg2 + // ```text + // program arg1 arg2 + // ``` // // into // - // remote-test-client run program 2 support-lib.so support-lib2.so arg1 arg2 + // ```text + // remote-test-client run program 2 support-lib.so support-lib2.so arg1 arg2 + // ``` // - // The test-client program will upload `program` to the emulator - // along with all other support libraries listed (in this case - // `support-lib.so` and `support-lib2.so`. It will then execute - // the program on the emulator with the arguments specified - // (in the environment we give the process) and then report back - // the same result. + // The test-client program will upload `program` to the emulator along with all other + // support libraries listed (in this case `support-lib.so` and `support-lib2.so`. It + // will then execute the program on the emulator with the arguments specified (in the + // environment we give the process) and then report back the same result. _ if self.config.remote_test_client.is_some() => { let aux_dir = self.aux_output_dir_name(); let ProcArgs { prog, args } = self.make_run_args(); @@ -1532,6 +1536,8 @@ impl<'test> TestCx<'test> { )); // Optionally prevent default --sysroot if specified in test compile-flags. + // + // FIXME: I feel like this logic is fairly sus. if !self.props.compile_flags.iter().any(|flag| flag.starts_with("--sysroot")) && !self.config.host_rustcflags.iter().any(|flag| flag == "--sysroot") { @@ -1918,7 +1924,8 @@ impl<'test> TestCx<'test> { fn dump_output_file(&self, out: &str, extension: &str) { let outfile = self.make_out_name(extension); - fs::write(outfile.as_std_path(), out).unwrap(); + fs::write(outfile.as_std_path(), out) + .unwrap_or_else(|err| panic!("failed to write {outfile}: {err:?}")); } /// Creates a filename for output with the given extension. diff --git a/src/tools/compiletest/src/runtest/debuginfo.rs b/src/tools/compiletest/src/runtest/debuginfo.rs index d9e1e4dfc8d..471e4a4c819 100644 --- a/src/tools/compiletest/src/runtest/debuginfo.rs +++ b/src/tools/compiletest/src/runtest/debuginfo.rs @@ -322,6 +322,8 @@ impl TestCx<'_> { &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script]; let mut gdb = Command::new(self.config.gdb.as_ref().unwrap()); + + // FIXME: we are propagating `PYTHONPATH` from the environment, not a compiletest flag! let pythonpath = if let Ok(pp) = std::env::var("PYTHONPATH") { format!("{pp}:{rust_pp_module_abs_path}") } else { @@ -443,6 +445,8 @@ impl TestCx<'_> { fn run_lldb(&self, test_executable: &Utf8Path, debugger_script: &Utf8Path) -> ProcRes { // Prepare the lldb_batchmode which executes the debugger script let lldb_script_path = self.config.src_root.join("src/etc/lldb_batchmode.py"); + + // FIXME: `PYTHONPATH` takes precedence over the flag...? let pythonpath = if let Ok(pp) = std::env::var("PYTHONPATH") { format!("{pp}:{}", self.config.lldb_python_dir.as_ref().unwrap()) } else { diff --git a/src/tools/miri/src/shims/time.rs b/src/tools/miri/src/shims/time.rs index 2fc42c13edd..eb21abc2a45 100644 --- a/src/tools/miri/src/shims/time.rs +++ b/src/tools/miri/src/shims/time.rs @@ -359,6 +359,63 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { interp_ok(Scalar::from_i32(0)) } + fn clock_nanosleep( + &mut self, + clock_id: &OpTy<'tcx>, + flags: &OpTy<'tcx>, + timespec: &OpTy<'tcx>, + rem: &OpTy<'tcx>, + ) -> InterpResult<'tcx, Scalar> { + let this = self.eval_context_mut(); + let clockid_t_size = this.libc_ty_layout("clockid_t").size; + + let clock_id = this.read_scalar(clock_id)?.to_int(clockid_t_size)?; + let timespec = this.deref_pointer_as(timespec, this.libc_ty_layout("timespec"))?; + let flags = this.read_scalar(flags)?.to_i32()?; + let _rem = this.read_pointer(rem)?; // Signal handlers are not supported, so rem will never be written to. + + // The standard lib through sleep_until only needs CLOCK_MONOTONIC + if clock_id != this.eval_libc("CLOCK_MONOTONIC").to_int(clockid_t_size)? { + throw_unsup_format!("clock_nanosleep: only CLOCK_MONOTONIC is supported"); + } + + let duration = match this.read_timespec(×pec)? { + Some(duration) => duration, + None => { + return this.set_last_error_and_return_i32(LibcError("EINVAL")); + } + }; + + let timeout_anchor = if flags == 0 { + // No flags set, the timespec should be interperted as a duration + // to sleep for + TimeoutAnchor::Relative + } else if flags == this.eval_libc_i32("TIMER_ABSTIME") { + // Only flag TIMER_ABSTIME set, the timespec should be interperted as + // an absolute time. + TimeoutAnchor::Absolute + } else { + // The standard lib (through `sleep_until`) only needs TIMER_ABSTIME + throw_unsup_format!( + "`clock_nanosleep` unsupported flags {flags}, only no flags or \ + TIMER_ABSTIME is supported" + ); + }; + + this.block_thread( + BlockReason::Sleep, + Some((TimeoutClock::Monotonic, timeout_anchor, duration)), + callback!( + @capture<'tcx> {} + |_this, unblock: UnblockKind| { + assert_eq!(unblock, UnblockKind::TimedOut); + interp_ok(()) + } + ), + ); + interp_ok(Scalar::from_i32(0)) + } + #[allow(non_snake_case)] fn Sleep(&mut self, timeout: &OpTy<'tcx>) -> InterpResult<'tcx> { let this = self.eval_context_mut(); diff --git a/src/tools/miri/src/shims/unix/foreign_items.rs b/src/tools/miri/src/shims/unix/foreign_items.rs index 438a9b420be..548eabb1b9f 100644 --- a/src/tools/miri/src/shims/unix/foreign_items.rs +++ b/src/tools/miri/src/shims/unix/foreign_items.rs @@ -967,6 +967,17 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { let result = this.nanosleep(duration, rem)?; this.write_scalar(result, dest)?; } + "clock_nanosleep" => { + // Currently this function does not exist on all Unixes, e.g. on macOS. + this.check_target_os( + &["freebsd", "linux", "android", "solaris", "illumos"], + link_name, + )?; + let [clock_id, flags, req, rem] = + this.check_shim(abi, CanonAbi::C, link_name, args)?; + let result = this.clock_nanosleep(clock_id, flags, req, rem)?; + this.write_scalar(result, dest)?; + } "sched_getaffinity" => { // Currently this function does not exist on all Unixes, e.g. on macOS. this.check_target_os(&["linux", "freebsd", "android"], link_name)?; diff --git a/src/tools/miri/tests/pass-dep/libc/libc-time.rs b/src/tools/miri/tests/pass-dep/libc/libc-time.rs index e53201e0bc5..e8957846ad5 100644 --- a/src/tools/miri/tests/pass-dep/libc/libc-time.rs +++ b/src/tools/miri/tests/pass-dep/libc/libc-time.rs @@ -1,5 +1,6 @@ //@ignore-target: windows # no libc time APIs on Windows //@compile-flags: -Zmiri-disable-isolation +use std::time::{Duration, Instant}; use std::{env, mem, ptr}; fn main() { @@ -20,6 +21,19 @@ fn main() { test_localtime_r_future_32b(); #[cfg(target_pointer_width = "64")] test_localtime_r_future_64b(); + + test_nanosleep(); + #[cfg(any( + target_os = "freebsd", + target_os = "linux", + target_os = "android", + target_os = "solaris", + target_os = "illumos" + ))] + { + test_clock_nanosleep::absolute(); + test_clock_nanosleep::relative(); + } } /// Tests whether clock support exists at all @@ -315,3 +329,103 @@ fn test_localtime_r_multiple_calls_deduplication() { NUM_CALLS - 1 ); } + +fn test_nanosleep() { + let start_test_sleep = Instant::now(); + let duration_zero = libc::timespec { tv_sec: 0, tv_nsec: 0 }; + let remainder = ptr::null_mut::<libc::timespec>(); + let is_error = unsafe { libc::nanosleep(&duration_zero, remainder) }; + assert_eq!(is_error, 0); + assert!(start_test_sleep.elapsed() < Duration::from_millis(10)); + + let start_test_sleep = Instant::now(); + let duration_100_millis = libc::timespec { tv_sec: 0, tv_nsec: 1_000_000_000 / 10 }; + let remainder = ptr::null_mut::<libc::timespec>(); + let is_error = unsafe { libc::nanosleep(&duration_100_millis, remainder) }; + assert_eq!(is_error, 0); + assert!(start_test_sleep.elapsed() > Duration::from_millis(100)); +} + +#[cfg(any( + target_os = "freebsd", + target_os = "linux", + target_os = "android", + target_os = "solaris", + target_os = "illumos" +))] +mod test_clock_nanosleep { + use super::*; + + /// Helper function used to create an instant in the future + fn add_100_millis(mut ts: libc::timespec) -> libc::timespec { + // While tv_nsec has type `c_long` tv_sec has type `time_t`. These might + // end up as different types (for example: like i32 and i64). + const SECOND: libc::c_long = 1_000_000_000; + ts.tv_nsec += SECOND / 10; + // If this pushes tv_nsec to SECOND or higher, we need to overflow to tv_sec. + ts.tv_sec += (ts.tv_nsec / SECOND) as libc::time_t; + ts.tv_nsec %= SECOND; + ts + } + + /// Helper function to get the current time for testing relative sleeps + fn timespec_now(clock: libc::clockid_t) -> libc::timespec { + let mut timespec = mem::MaybeUninit::<libc::timespec>::uninit(); + let is_error = unsafe { libc::clock_gettime(clock, timespec.as_mut_ptr()) }; + assert_eq!(is_error, 0); + unsafe { timespec.assume_init() } + } + + pub fn absolute() { + let start_test_sleep = Instant::now(); + let before_start = libc::timespec { tv_sec: 0, tv_nsec: 0 }; + let remainder = ptr::null_mut::<libc::timespec>(); + let error = unsafe { + // this will not sleep since unix time zero is in the past + libc::clock_nanosleep( + libc::CLOCK_MONOTONIC, + libc::TIMER_ABSTIME, + &before_start, + remainder, + ) + }; + assert_eq!(error, 0); + assert!(start_test_sleep.elapsed() < Duration::from_millis(10)); + + let start_test_sleep = Instant::now(); + let hunderd_millis_after_start = add_100_millis(timespec_now(libc::CLOCK_MONOTONIC)); + let remainder = ptr::null_mut::<libc::timespec>(); + let error = unsafe { + libc::clock_nanosleep( + libc::CLOCK_MONOTONIC, + libc::TIMER_ABSTIME, + &hunderd_millis_after_start, + remainder, + ) + }; + assert_eq!(error, 0); + assert!(start_test_sleep.elapsed() > Duration::from_millis(100)); + } + + pub fn relative() { + const NO_FLAGS: i32 = 0; + + let start_test_sleep = Instant::now(); + let duration_zero = libc::timespec { tv_sec: 0, tv_nsec: 0 }; + let remainder = ptr::null_mut::<libc::timespec>(); + let error = unsafe { + libc::clock_nanosleep(libc::CLOCK_MONOTONIC, NO_FLAGS, &duration_zero, remainder) + }; + assert_eq!(error, 0); + assert!(start_test_sleep.elapsed() < Duration::from_millis(10)); + + let start_test_sleep = Instant::now(); + let duration_100_millis = libc::timespec { tv_sec: 0, tv_nsec: 1_000_000_000 / 10 }; + let remainder = ptr::null_mut::<libc::timespec>(); + let error = unsafe { + libc::clock_nanosleep(libc::CLOCK_MONOTONIC, NO_FLAGS, &duration_100_millis, remainder) + }; + assert_eq!(error, 0); + assert!(start_test_sleep.elapsed() > Duration::from_millis(100)); + } +} diff --git a/src/tools/miri/tests/pass/shims/time.rs b/src/tools/miri/tests/pass/shims/time.rs index 226f04ade0f..ef0b400f1a7 100644 --- a/src/tools/miri/tests/pass/shims/time.rs +++ b/src/tools/miri/tests/pass/shims/time.rs @@ -1,4 +1,5 @@ //@compile-flags: -Zmiri-disable-isolation +#![feature(thread_sleep_until)] use std::time::{Duration, Instant, SystemTime}; @@ -15,6 +16,14 @@ fn test_sleep() { assert!((after - before).as_millis() >= 100); } +fn test_sleep_until() { + let before = Instant::now(); + let hunderd_millis_after_start = before + Duration::from_millis(100); + std::thread::sleep_until(hunderd_millis_after_start); + let after = Instant::now(); + assert!((after - before).as_millis() >= 100); +} + fn main() { // Check `SystemTime`. let now1 = SystemTime::now(); @@ -49,4 +58,5 @@ fn main() { duration_sanity(diff); test_sleep(); + test_sleep_until(); } diff --git a/src/tools/rustbook/Cargo.lock b/src/tools/rustbook/Cargo.lock index aeae5b61b95..050ddf47bae 100644 --- a/src/tools/rustbook/Cargo.lock +++ b/src/tools/rustbook/Cargo.lock @@ -156,9 +156,9 @@ checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43" [[package]] name = "cc" -version = "1.2.27" +version = "1.2.29" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d487aa071b5f64da6f19a3e848e3578944b726ee5a4854b82172f02aa876bfdc" +checksum = "5c1599538de2394445747c8cf7935946e3cc27e9625f889d979bfb2aaf569362" dependencies = [ "shlex", ] diff --git a/src/tools/tidy/src/ext_tool_checks.rs b/src/tools/tidy/src/ext_tool_checks.rs index 2904908fd43..d2da63a9703 100644 --- a/src/tools/tidy/src/ext_tool_checks.rs +++ b/src/tools/tidy/src/ext_tool_checks.rs @@ -65,6 +65,13 @@ fn check_impl( None => vec![], }; + if lint_args.contains(&"spellcheck:fix") { + return Err(Error::Generic( + "`spellcheck:fix` is no longer valid, use `--extra=check=spellcheck --bless`" + .to_string(), + )); + } + let python_all = lint_args.contains(&"py"); let python_lint = lint_args.contains(&"py:lint") || python_all; let python_fmt = lint_args.contains(&"py:fmt") || python_all; @@ -72,8 +79,7 @@ fn check_impl( let shell_lint = lint_args.contains(&"shell:lint") || shell_all; let cpp_all = lint_args.contains(&"cpp"); let cpp_fmt = lint_args.contains(&"cpp:fmt") || cpp_all; - let spellcheck_all = lint_args.contains(&"spellcheck"); - let spellcheck_fix = lint_args.contains(&"spellcheck:fix"); + let spellcheck = lint_args.contains(&"spellcheck"); let mut py_path = None; @@ -226,7 +232,7 @@ fn check_impl( shellcheck_runner(&merge_args(&cfg_args, &file_args_shc))?; } - if spellcheck_all || spellcheck_fix { + if spellcheck { let config_path = root_path.join("typos.toml"); // sync target files with .github/workflows/spellcheck.yml let mut args = vec![ @@ -238,11 +244,11 @@ fn check_impl( "./src/librustdoc", ]; - if spellcheck_all { - eprintln!("spellcheck files"); - } else if spellcheck_fix { + if bless { eprintln!("spellcheck files and fix"); args.push("--write-changes"); + } else { + eprintln!("spellcheck files"); } spellcheck_runner(&args)?; } diff --git a/src/tools/tidy/src/issues.txt b/src/tools/tidy/src/issues.txt index 49b4287e4e3..cac4dba2b49 100644 --- a/src/tools/tidy/src/issues.txt +++ b/src/tools/tidy/src/issues.txt @@ -276,7 +276,6 @@ ui/auto-traits/issue-23080-2.rs ui/auto-traits/issue-23080.rs ui/auto-traits/issue-83857-ub.rs ui/auto-traits/issue-84075.rs -ui/auxiliary/issue-16822.rs ui/bench/issue-32062.rs ui/binding/issue-40402-1.rs ui/binding/issue-40402-2.rs @@ -1367,9 +1366,6 @@ ui/infinite/issue-41731-infinite-macro-println.rs ui/intrinsics/issue-28575.rs ui/intrinsics/issue-84297-reifying-copy.rs ui/invalid/issue-114435-layout-type-err.rs -ui/issue-15924.rs -ui/issue-16822.rs -ui/issues-71798.rs ui/issues/auxiliary/issue-11224.rs ui/issues/auxiliary/issue-11508.rs ui/issues/auxiliary/issue-11529.rs diff --git a/tests/codegen/intrinsics/transmute-x64.rs b/tests/codegen/intrinsics/transmute-x64.rs index be45e4db90f..8c9480ab091 100644 --- a/tests/codegen/intrinsics/transmute-x64.rs +++ b/tests/codegen/intrinsics/transmute-x64.rs @@ -9,17 +9,20 @@ use std::mem::transmute; // CHECK-LABEL: @check_sse_pair_to_avx( #[no_mangle] pub unsafe fn check_sse_pair_to_avx(x: (__m128i, __m128i)) -> __m256i { + // CHECK: start: // CHECK-NOT: alloca - // CHECK: %0 = load <4 x i64>, ptr %x, align 16 - // CHECK: store <4 x i64> %0, ptr %_0, align 32 + // CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 32 %_0, ptr align 16 %x, i64 32, i1 false) + // CHECK-NEXT: ret void transmute(x) } // CHECK-LABEL: @check_sse_pair_from_avx( #[no_mangle] pub unsafe fn check_sse_pair_from_avx(x: __m256i) -> (__m128i, __m128i) { + // CHECK: start: // CHECK-NOT: alloca - // CHECK: %0 = load <4 x i64>, ptr %x, align 32 - // CHECK: store <4 x i64> %0, ptr %_0, align 16 + // CHECK-NEXT: %[[TEMP:.+]] = load <4 x i64>, ptr %x, align 32 + // CHECK-NEXT: store <4 x i64> %[[TEMP]], ptr %_0, align 16 + // CHECK-NEXT: ret void transmute(x) } diff --git a/tests/codegen/intrinsics/transmute.rs b/tests/codegen/intrinsics/transmute.rs index 560ebcccdd0..e375724bc1b 100644 --- a/tests/codegen/intrinsics/transmute.rs +++ b/tests/codegen/intrinsics/transmute.rs @@ -29,28 +29,28 @@ pub struct Aggregate8(u8); // CHECK-LABEL: @check_bigger_size( #[no_mangle] pub unsafe fn check_bigger_size(x: u16) -> u32 { - // CHECK: call void @llvm.trap + // CHECK: call void @llvm.assume(i1 false) transmute_unchecked(x) } // CHECK-LABEL: @check_smaller_size( #[no_mangle] pub unsafe fn check_smaller_size(x: u32) -> u16 { - // CHECK: call void @llvm.trap + // CHECK: call void @llvm.assume(i1 false) transmute_unchecked(x) } // CHECK-LABEL: @check_smaller_array( #[no_mangle] pub unsafe fn check_smaller_array(x: [u32; 7]) -> [u32; 3] { - // CHECK: call void @llvm.trap + // CHECK: call void @llvm.assume(i1 false) transmute_unchecked(x) } // CHECK-LABEL: @check_bigger_array( #[no_mangle] pub unsafe fn check_bigger_array(x: [u32; 3]) -> [u32; 7] { - // CHECK: call void @llvm.trap + // CHECK: call void @llvm.assume(i1 false) transmute_unchecked(x) } @@ -73,9 +73,9 @@ pub unsafe fn check_to_empty_array(x: [u32; 5]) -> [u32; 0] { #[no_mangle] #[custom_mir(dialect = "runtime", phase = "optimized")] pub unsafe fn check_from_empty_array(x: [u32; 0]) -> [u32; 5] { - // CHECK-NOT: trap - // CHECK: call void @llvm.trap - // CHECK-NOT: trap + // CHECK-NOT: call + // CHECK: call void @llvm.assume(i1 false) + // CHECK-NOT: call mir! { { RET = CastTransmute(x); diff --git a/tests/codegen/simd-intrinsic/simd-intrinsic-transmute-array.rs b/tests/codegen/simd-intrinsic/simd-intrinsic-transmute-array.rs index 977bf3379b7..301f06c2d74 100644 --- a/tests/codegen/simd-intrinsic/simd-intrinsic-transmute-array.rs +++ b/tests/codegen/simd-intrinsic/simd-intrinsic-transmute-array.rs @@ -40,8 +40,7 @@ pub fn build_array_s(x: [f32; 4]) -> S<4> { // CHECK-LABEL: @build_array_transmute_s #[no_mangle] pub fn build_array_transmute_s(x: [f32; 4]) -> S<4> { - // CHECK: %[[VAL:.+]] = load <4 x float>, ptr %x, align [[ARRAY_ALIGN]] - // CHECK: store <4 x float> %[[VAL:.+]], ptr %_0, align [[VECTOR_ALIGN]] + // CHECK: call void @llvm.memcpy.{{.+}}({{.*}} align [[VECTOR_ALIGN]] {{.*}} align [[ARRAY_ALIGN]] {{.*}}, [[USIZE]] 16, i1 false) unsafe { std::mem::transmute(x) } } @@ -55,7 +54,6 @@ pub fn build_array_t(x: [f32; 4]) -> T { // CHECK-LABEL: @build_array_transmute_t #[no_mangle] pub fn build_array_transmute_t(x: [f32; 4]) -> T { - // CHECK: %[[VAL:.+]] = load <4 x float>, ptr %x, align [[ARRAY_ALIGN]] - // CHECK: store <4 x float> %[[VAL:.+]], ptr %_0, align [[VECTOR_ALIGN]] + // CHECK: call void @llvm.memcpy.{{.+}}({{.*}} align [[VECTOR_ALIGN]] {{.*}} align [[ARRAY_ALIGN]] {{.*}}, [[USIZE]] 16, i1 false) unsafe { std::mem::transmute(x) } } diff --git a/tests/codegen/transmute-scalar.rs b/tests/codegen/transmute-scalar.rs index 3ac6ba3beb1..ce1b0558b2e 100644 --- a/tests/codegen/transmute-scalar.rs +++ b/tests/codegen/transmute-scalar.rs @@ -111,8 +111,11 @@ pub fn fake_bool_unsigned_to_bool(b: FakeBoolUnsigned) -> bool { struct S([i64; 1]); // CHECK-LABEL: define{{.*}}i64 @single_element_simd_to_scalar(<1 x i64> %b) -// CHECK: bitcast <1 x i64> %b to i64 -// CHECK: ret i64 +// CHECK-NEXT: start: +// CHECK-NEXT: %[[RET:.+]] = alloca [8 x i8] +// CHECK-NEXT: store <1 x i64> %b, ptr %[[RET]] +// CHECK-NEXT: %[[TEMP:.+]] = load i64, ptr %[[RET]] +// CHECK-NEXT: ret i64 %[[TEMP]] #[no_mangle] #[cfg_attr(target_family = "wasm", target_feature(enable = "simd128"))] #[cfg_attr(target_arch = "arm", target_feature(enable = "neon"))] @@ -124,8 +127,11 @@ pub extern "C" fn single_element_simd_to_scalar(b: S) -> i64 { } // CHECK-LABEL: define{{.*}}<1 x i64> @scalar_to_single_element_simd(i64 %b) -// CHECK: bitcast i64 %b to <1 x i64> -// CHECK: ret <1 x i64> +// CHECK-NEXT: start: +// CHECK-NEXT: %[[RET:.+]] = alloca [8 x i8] +// CHECK-NEXT: store i64 %b, ptr %[[RET]] +// CHECK-NEXT: %[[TEMP:.+]] = load <1 x i64>, ptr %[[RET]] +// CHECK-NEXT: ret <1 x i64> %[[TEMP]] #[no_mangle] #[cfg_attr(target_family = "wasm", target_feature(enable = "simd128"))] #[cfg_attr(target_arch = "arm", target_feature(enable = "neon"))] diff --git a/tests/codegen/vec-in-place.rs b/tests/codegen/vec-in-place.rs index 1f6836f6dfa..a5ef8653b99 100644 --- a/tests/codegen/vec-in-place.rs +++ b/tests/codegen/vec-in-place.rs @@ -41,9 +41,6 @@ pub fn vec_iterator_cast_primitive(vec: Vec<i8>) -> Vec<u8> { // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) // CHECK-NOT: loop // CHECK-NOT: call - // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) - // CHECK-NOT: loop - // CHECK-NOT: call vec.into_iter().map(|e| e as u8).collect() } @@ -55,9 +52,6 @@ pub fn vec_iterator_cast_wrapper(vec: Vec<u8>) -> Vec<Wrapper<u8>> { // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) // CHECK-NOT: loop // CHECK-NOT: call - // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) - // CHECK-NOT: loop - // CHECK-NOT: call vec.into_iter().map(|e| Wrapper(e)).collect() } @@ -86,9 +80,6 @@ pub fn vec_iterator_cast_unwrap(vec: Vec<Wrapper<u8>>) -> Vec<u8> { // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) // CHECK-NOT: loop // CHECK-NOT: call - // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) - // CHECK-NOT: loop - // CHECK-NOT: call vec.into_iter().map(|e| e.0).collect() } @@ -100,9 +91,6 @@ pub fn vec_iterator_cast_aggregate(vec: Vec<[u64; 4]>) -> Vec<Foo> { // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) // CHECK-NOT: loop // CHECK-NOT: call - // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) - // CHECK-NOT: loop - // CHECK-NOT: call vec.into_iter().map(|e| unsafe { std::mem::transmute(e) }).collect() } @@ -114,9 +102,6 @@ pub fn vec_iterator_cast_deaggregate_tra(vec: Vec<Bar>) -> Vec<[u64; 4]> { // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) // CHECK-NOT: loop // CHECK-NOT: call - // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) - // CHECK-NOT: loop - // CHECK-NOT: call // Safety: For the purpose of this test we assume that Bar layout matches [u64; 4]. // This currently is not guaranteed for repr(Rust) types, but it happens to work here and @@ -133,9 +118,6 @@ pub fn vec_iterator_cast_deaggregate_fold(vec: Vec<Baz>) -> Vec<[u64; 4]> { // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) // CHECK-NOT: loop // CHECK-NOT: call - // CHECK: call{{.+}}void @llvm.assume(i1 %{{.+}}) - // CHECK-NOT: loop - // CHECK-NOT: call // Safety: For the purpose of this test we assume that Bar layout matches [u64; 4]. // This currently is not guaranteed for repr(Rust) types, but it happens to work here and @@ -156,12 +138,7 @@ pub fn vec_iterator_cast_unwrap_drop(vec: Vec<Wrapper<String>>) -> Vec<String> { // CHECK-NOT: call // CHECK-NOT: %{{.*}} = mul // CHECK-NOT: %{{.*}} = udiv - // CHECK: call - // CHECK-SAME: void @llvm.assume(i1 %{{.+}}) - // CHECK-NOT: br i1 %{{.*}}, label %{{.*}}, label %{{.*}} - // CHECK-NOT: call - // CHECK-NOT: %{{.*}} = mul - // CHECK-NOT: %{{.*}} = udiv + // CHECK: ret void vec.into_iter().map(|Wrapper(e)| e).collect() } @@ -178,12 +155,6 @@ pub fn vec_iterator_cast_wrap_drop(vec: Vec<String>) -> Vec<Wrapper<String>> { // CHECK-NOT: call // CHECK-NOT: %{{.*}} = mul // CHECK-NOT: %{{.*}} = udiv - // CHECK: call - // CHECK-SAME: void @llvm.assume(i1 %{{.+}}) - // CHECK-NOT: br i1 %{{.*}}, label %{{.*}}, label %{{.*}} - // CHECK-NOT: call - // CHECK-NOT: %{{.*}} = mul - // CHECK-NOT: %{{.*}} = udiv // CHECK: ret void vec.into_iter().map(Wrapper).collect() diff --git a/tests/mir-opt/copy-prop/borrowed_local.borrow_in_loop.CopyProp.panic-abort.diff b/tests/mir-opt/copy-prop/borrowed_local.borrow_in_loop.CopyProp.panic-abort.diff new file mode 100644 index 00000000000..8c5e6a9e827 --- /dev/null +++ b/tests/mir-opt/copy-prop/borrowed_local.borrow_in_loop.CopyProp.panic-abort.diff @@ -0,0 +1,101 @@ +- // MIR for `borrow_in_loop` before CopyProp ++ // MIR for `borrow_in_loop` after CopyProp + + fn borrow_in_loop() -> () { + let mut _0: (); + let mut _1: bool; + let _3: bool; + let mut _4: !; + let mut _5: (); + let mut _7: bool; + let mut _9: bool; + let mut _10: bool; + let mut _11: &bool; + let _12: &bool; + let mut _13: bool; + let mut _14: bool; + let mut _15: bool; + let mut _16: !; + scope 1 { + debug c => _1; + let mut _2: &bool; + let mut _17: &bool; + scope 2 { + debug p => _2; + let _6: bool; + scope 3 { + debug a => _6; + let _8: bool; + scope 4 { + debug b => _8; + } + } + } + } + + bb0: { + StorageLive(_1); + StorageLive(_2); + _17 = const borrow_in_loop::promoted[0]; + _2 = &(*_17); +- StorageLive(_4); + goto -> bb1; + } + + bb1: { +- StorageLive(_6); + StorageLive(_7); + _7 = copy (*_2); + _6 = Not(move _7); + StorageDead(_7); +- StorageLive(_8); + StorageLive(_9); + _9 = copy (*_2); + _8 = Not(move _9); + StorageDead(_9); +- StorageLive(_10); +- _10 = copy _6; +- _1 = move _10; +- StorageDead(_10); ++ _1 = copy _6; + StorageLive(_11); + StorageLive(_12); + _12 = &_1; + _11 = &(*_12); + _2 = move _11; + StorageDead(_11); + StorageDead(_12); + StorageLive(_13); +- StorageLive(_14); +- _14 = copy _6; +- StorageLive(_15); +- _15 = copy _8; +- _13 = Ne(move _14, move _15); ++ _13 = Ne(copy _6, copy _8); + switchInt(move _13) -> [0: bb3, otherwise: bb2]; + } + + bb2: { +- StorageDead(_15); +- StorageDead(_14); + _0 = const (); + StorageDead(_13); +- StorageDead(_8); +- StorageDead(_6); +- StorageDead(_4); + StorageDead(_2); + StorageDead(_1); + return; + } + + bb3: { +- StorageDead(_15); +- StorageDead(_14); +- _5 = const (); + StorageDead(_13); +- StorageDead(_8); +- StorageDead(_6); + goto -> bb1; + } + } + diff --git a/tests/mir-opt/copy-prop/borrowed_local.borrow_in_loop.CopyProp.panic-unwind.diff b/tests/mir-opt/copy-prop/borrowed_local.borrow_in_loop.CopyProp.panic-unwind.diff new file mode 100644 index 00000000000..8c5e6a9e827 --- /dev/null +++ b/tests/mir-opt/copy-prop/borrowed_local.borrow_in_loop.CopyProp.panic-unwind.diff @@ -0,0 +1,101 @@ +- // MIR for `borrow_in_loop` before CopyProp ++ // MIR for `borrow_in_loop` after CopyProp + + fn borrow_in_loop() -> () { + let mut _0: (); + let mut _1: bool; + let _3: bool; + let mut _4: !; + let mut _5: (); + let mut _7: bool; + let mut _9: bool; + let mut _10: bool; + let mut _11: &bool; + let _12: &bool; + let mut _13: bool; + let mut _14: bool; + let mut _15: bool; + let mut _16: !; + scope 1 { + debug c => _1; + let mut _2: &bool; + let mut _17: &bool; + scope 2 { + debug p => _2; + let _6: bool; + scope 3 { + debug a => _6; + let _8: bool; + scope 4 { + debug b => _8; + } + } + } + } + + bb0: { + StorageLive(_1); + StorageLive(_2); + _17 = const borrow_in_loop::promoted[0]; + _2 = &(*_17); +- StorageLive(_4); + goto -> bb1; + } + + bb1: { +- StorageLive(_6); + StorageLive(_7); + _7 = copy (*_2); + _6 = Not(move _7); + StorageDead(_7); +- StorageLive(_8); + StorageLive(_9); + _9 = copy (*_2); + _8 = Not(move _9); + StorageDead(_9); +- StorageLive(_10); +- _10 = copy _6; +- _1 = move _10; +- StorageDead(_10); ++ _1 = copy _6; + StorageLive(_11); + StorageLive(_12); + _12 = &_1; + _11 = &(*_12); + _2 = move _11; + StorageDead(_11); + StorageDead(_12); + StorageLive(_13); +- StorageLive(_14); +- _14 = copy _6; +- StorageLive(_15); +- _15 = copy _8; +- _13 = Ne(move _14, move _15); ++ _13 = Ne(copy _6, copy _8); + switchInt(move _13) -> [0: bb3, otherwise: bb2]; + } + + bb2: { +- StorageDead(_15); +- StorageDead(_14); + _0 = const (); + StorageDead(_13); +- StorageDead(_8); +- StorageDead(_6); +- StorageDead(_4); + StorageDead(_2); + StorageDead(_1); + return; + } + + bb3: { +- StorageDead(_15); +- StorageDead(_14); +- _5 = const (); + StorageDead(_13); +- StorageDead(_8); +- StorageDead(_6); + goto -> bb1; + } + } + diff --git a/tests/mir-opt/copy-prop/borrowed_local.borrowed.CopyProp.panic-abort.diff b/tests/mir-opt/copy-prop/borrowed_local.borrowed.CopyProp.panic-abort.diff index 40e8c06f357..285cd0f6527 100644 --- a/tests/mir-opt/copy-prop/borrowed_local.borrowed.CopyProp.panic-abort.diff +++ b/tests/mir-opt/copy-prop/borrowed_local.borrowed.CopyProp.panic-abort.diff @@ -7,14 +7,13 @@ let mut _3: &T; bb0: { -- _2 = copy _1; + _2 = copy _1; _3 = &_1; _0 = opaque::<&T>(copy _3) -> [return: bb1, unwind unreachable]; } bb1: { -- _0 = opaque::<T>(copy _2) -> [return: bb2, unwind unreachable]; -+ _0 = opaque::<T>(copy _1) -> [return: bb2, unwind unreachable]; + _0 = opaque::<T>(copy _2) -> [return: bb2, unwind unreachable]; } bb2: { diff --git a/tests/mir-opt/copy-prop/borrowed_local.borrowed.CopyProp.panic-unwind.diff b/tests/mir-opt/copy-prop/borrowed_local.borrowed.CopyProp.panic-unwind.diff index d09c96c0f2b..f189615ea95 100644 --- a/tests/mir-opt/copy-prop/borrowed_local.borrowed.CopyProp.panic-unwind.diff +++ b/tests/mir-opt/copy-prop/borrowed_local.borrowed.CopyProp.panic-unwind.diff @@ -7,14 +7,13 @@ let mut _3: &T; bb0: { -- _2 = copy _1; + _2 = copy _1; _3 = &_1; _0 = opaque::<&T>(copy _3) -> [return: bb1, unwind continue]; } bb1: { -- _0 = opaque::<T>(copy _2) -> [return: bb2, unwind continue]; -+ _0 = opaque::<T>(copy _1) -> [return: bb2, unwind continue]; + _0 = opaque::<T>(copy _2) -> [return: bb2, unwind continue]; } bb2: { diff --git a/tests/mir-opt/copy-prop/borrowed_local.rs b/tests/mir-opt/copy-prop/borrowed_local.rs index 8db19fbd377..68cdc57483a 100644 --- a/tests/mir-opt/copy-prop/borrowed_local.rs +++ b/tests/mir-opt/copy-prop/borrowed_local.rs @@ -50,10 +50,11 @@ fn compare_address() -> bool { fn borrowed<T: Copy + Freeze>(x: T) -> bool { // CHECK-LABEL: fn borrowed( // CHECK: bb0: { + // CHECK-NEXT: _2 = copy _1; // CHECK-NEXT: _3 = &_1; // CHECK-NEXT: _0 = opaque::<&T>(copy _3) // CHECK: bb1: { - // CHECK-NEXT: _0 = opaque::<T>(copy _1) + // CHECK-NEXT: _0 = opaque::<T>(copy _2) mir! { { let a = x; @@ -94,11 +95,45 @@ fn non_freeze<T: Copy>(x: T) -> bool { } } +/// We must not unify a borrowed local with another that may be written-to before the borrow is +/// read again. As we have no aliasing model yet, this means forbidding unifying borrowed locals. +fn borrow_in_loop() { + // CHECK-LABEL: fn borrow_in_loop( + // CHECK: debug c => [[c:_.*]]; + // CHECK: debug p => [[p:_.*]]; + // CHECK: debug a => [[a:_.*]]; + // CHECK: debug b => [[b:_.*]]; + // CHECK-NOT: &[[a]] + // CHECK-NOT: &[[b]] + // CHECK: [[a]] = Not({{.*}}); + // CHECK-NOT: &[[a]] + // CHECK-NOT: &[[b]] + // CHECK: [[b]] = Not({{.*}}); + // CHECK-NOT: &[[a]] + // CHECK-NOT: &[[b]] + // CHECK: &[[c]] + // CHECK-NOT: &[[a]] + // CHECK-NOT: &[[b]] + let mut c; + let mut p = &false; + loop { + let a = !*p; + let b = !*p; + c = a; + p = &c; + if a != b { + return; + } + } +} + fn main() { assert!(!compare_address()); non_freeze(5); + borrow_in_loop(); } // EMIT_MIR borrowed_local.compare_address.CopyProp.diff // EMIT_MIR borrowed_local.borrowed.CopyProp.diff // EMIT_MIR borrowed_local.non_freeze.CopyProp.diff +// EMIT_MIR borrowed_local.borrow_in_loop.CopyProp.diff diff --git a/tests/mir-opt/copy-prop/write_to_borrowed.main.CopyProp.diff b/tests/mir-opt/copy-prop/write_to_borrowed.main.CopyProp.diff index eab06b1ba1e..baa71501047 100644 --- a/tests/mir-opt/copy-prop/write_to_borrowed.main.CopyProp.diff +++ b/tests/mir-opt/copy-prop/write_to_borrowed.main.CopyProp.diff @@ -16,11 +16,10 @@ _3 = const 'b'; _5 = copy _3; _6 = &_3; -- _4 = copy _5; + _4 = copy _5; (*_1) = copy (*_6); _6 = &_5; -- _7 = dump_var::<char>(copy _4) -> [return: bb1, unwind unreachable]; -+ _7 = dump_var::<char>(copy _5) -> [return: bb1, unwind unreachable]; + _7 = dump_var::<char>(copy _4) -> [return: bb1, unwind unreachable]; } bb1: { diff --git a/tests/mir-opt/copy-prop/write_to_borrowed.rs b/tests/mir-opt/copy-prop/write_to_borrowed.rs index 58809749103..05aa2fba18d 100644 --- a/tests/mir-opt/copy-prop/write_to_borrowed.rs +++ b/tests/mir-opt/copy-prop/write_to_borrowed.rs @@ -27,13 +27,13 @@ fn main() { _5 = _3; // CHECK-NEXT: _6 = &_3; _6 = &_3; - // CHECK-NOT: {{_.*}} = {{_.*}}; + // CHECK-NEXT: _4 = copy _5; _4 = _5; // CHECK-NEXT: (*_1) = copy (*_6); *_1 = *_6; // CHECK-NEXT: _6 = &_5; _6 = &_5; - // CHECK-NEXT: _7 = dump_var::<char>(copy _5) + // CHECK-NEXT: _7 = dump_var::<char>(copy _4) Call(_7 = dump_var(_4), ReturnTo(bb1), UnwindUnreachable()) } bb1 = { Return() } diff --git a/tests/mir-opt/pre-codegen/slice_filter.variant_a-{closure#0}.PreCodegen.after.mir b/tests/mir-opt/pre-codegen/slice_filter.variant_a-{closure#0}.PreCodegen.after.mir index cbdd194afd3..97036745009 100644 --- a/tests/mir-opt/pre-codegen/slice_filter.variant_a-{closure#0}.PreCodegen.after.mir +++ b/tests/mir-opt/pre-codegen/slice_filter.variant_a-{closure#0}.PreCodegen.after.mir @@ -10,18 +10,18 @@ fn variant_a::{closure#0}(_1: &mut {closure@$DIR/slice_filter.rs:7:25: 7:39}, _2 let mut _8: &&usize; let _9: &usize; let mut _10: &&usize; - let mut _13: bool; - let mut _14: &&usize; - let _15: &usize; + let mut _15: bool; let mut _16: &&usize; - let mut _19: bool; - let mut _20: &&usize; - let _21: &usize; - let mut _22: &&usize; + let _17: &usize; + let mut _18: &&usize; let mut _23: bool; let mut _24: &&usize; let _25: &usize; let mut _26: &&usize; + let mut _29: bool; + let mut _30: &&usize; + let _31: &usize; + let mut _32: &&usize; scope 1 { debug a => _4; debug b => _5; @@ -30,39 +30,47 @@ fn variant_a::{closure#0}(_1: &mut {closure@$DIR/slice_filter.rs:7:25: 7:39}, _2 scope 2 (inlined std::cmp::impls::<impl PartialOrd for &usize>::le) { debug self => _8; debug other => _10; + let mut _11: &usize; + let mut _12: &usize; scope 3 (inlined std::cmp::impls::<impl PartialOrd for usize>::le) { - debug self => _4; - debug other => _6; - let mut _11: usize; - let mut _12: usize; + debug self => _11; + debug other => _12; + let mut _13: usize; + let mut _14: usize; } } scope 4 (inlined std::cmp::impls::<impl PartialOrd for &usize>::le) { - debug self => _14; - debug other => _16; + debug self => _16; + debug other => _18; + let mut _19: &usize; + let mut _20: &usize; scope 5 (inlined std::cmp::impls::<impl PartialOrd for usize>::le) { - debug self => _7; - debug other => _5; - let mut _17: usize; - let mut _18: usize; + debug self => _19; + debug other => _20; + let mut _21: usize; + let mut _22: usize; } } scope 6 (inlined std::cmp::impls::<impl PartialOrd for &usize>::le) { - debug self => _20; - debug other => _22; + debug self => _24; + debug other => _26; + let mut _27: &usize; + let mut _28: &usize; scope 7 (inlined std::cmp::impls::<impl PartialOrd for usize>::le) { - debug self => _6; - debug other => _4; + debug self => _27; + debug other => _28; } } scope 8 (inlined std::cmp::impls::<impl PartialOrd for &usize>::le) { - debug self => _24; - debug other => _26; + debug self => _30; + debug other => _32; + let mut _33: &usize; + let mut _34: &usize; scope 9 (inlined std::cmp::impls::<impl PartialOrd for usize>::le) { - debug self => _5; - debug other => _7; - let mut _27: usize; - let mut _28: usize; + debug self => _33; + debug other => _34; + let mut _35: usize; + let mut _36: usize; } } } @@ -73,17 +81,23 @@ fn variant_a::{closure#0}(_1: &mut {closure@$DIR/slice_filter.rs:7:25: 7:39}, _2 _5 = &((*_3).1: usize); _6 = &((*_3).2: usize); _7 = &((*_3).3: usize); - StorageLive(_13); + StorageLive(_15); StorageLive(_8); _8 = &_4; StorageLive(_10); StorageLive(_9); _9 = copy _6; _10 = &_9; - _11 = copy ((*_3).0: usize); - _12 = copy ((*_3).2: usize); - _13 = Le(copy _11, copy _12); - switchInt(move _13) -> [0: bb1, otherwise: bb2]; + StorageLive(_11); + StorageLive(_12); + _11 = copy _4; + _12 = copy _6; + _13 = copy ((*_3).0: usize); + _14 = copy ((*_3).2: usize); + _15 = Le(copy _13, copy _14); + StorageDead(_12); + StorageDead(_11); + switchInt(move _15) -> [0: bb1, otherwise: bb2]; } bb1: { @@ -97,89 +111,107 @@ fn variant_a::{closure#0}(_1: &mut {closure@$DIR/slice_filter.rs:7:25: 7:39}, _2 StorageDead(_9); StorageDead(_10); StorageDead(_8); - StorageLive(_19); - StorageLive(_14); - _14 = &_7; + StorageLive(_23); StorageLive(_16); - StorageLive(_15); - _15 = copy _5; - _16 = &_15; - StorageLive(_17); - _17 = copy ((*_3).3: usize); + _16 = &_7; StorageLive(_18); - _18 = copy ((*_3).1: usize); - _19 = Le(move _17, move _18); - StorageDead(_18); - StorageDead(_17); - switchInt(move _19) -> [0: bb3, otherwise: bb8]; + StorageLive(_17); + _17 = copy _5; + _18 = &_17; + StorageLive(_19); + StorageLive(_20); + _19 = copy _7; + _20 = copy _5; + StorageLive(_21); + _21 = copy ((*_3).3: usize); + StorageLive(_22); + _22 = copy ((*_3).1: usize); + _23 = Le(move _21, move _22); + StorageDead(_22); + StorageDead(_21); + StorageDead(_20); + StorageDead(_19); + switchInt(move _23) -> [0: bb3, otherwise: bb8]; } bb3: { - StorageDead(_15); + StorageDead(_17); + StorageDead(_18); StorageDead(_16); - StorageDead(_14); goto -> bb4; } bb4: { - StorageLive(_23); - StorageLive(_20); - _20 = &_6; - StorageLive(_22); - StorageLive(_21); - _21 = copy _4; - _22 = &_21; - _23 = Le(copy _12, copy _11); - switchInt(move _23) -> [0: bb5, otherwise: bb6]; - } - - bb5: { - StorageDead(_21); - StorageDead(_22); - StorageDead(_20); - _0 = const false; - goto -> bb7; - } - - bb6: { - StorageDead(_21); - StorageDead(_22); - StorageDead(_20); + StorageLive(_29); StorageLive(_24); - _24 = &_5; + _24 = &_6; StorageLive(_26); StorageLive(_25); - _25 = copy _7; + _25 = copy _4; _26 = &_25; StorageLive(_27); - _27 = copy ((*_3).1: usize); StorageLive(_28); - _28 = copy ((*_3).3: usize); - _0 = Le(move _27, move _28); + _27 = copy _6; + _28 = copy _4; + _29 = Le(copy _14, copy _13); StorageDead(_28); StorageDead(_27); + switchInt(move _29) -> [0: bb5, otherwise: bb6]; + } + + bb5: { StorageDead(_25); StorageDead(_26); StorageDead(_24); + _0 = const false; + goto -> bb7; + } + + bb6: { + StorageDead(_25); + StorageDead(_26); + StorageDead(_24); + StorageLive(_30); + _30 = &_5; + StorageLive(_32); + StorageLive(_31); + _31 = copy _7; + _32 = &_31; + StorageLive(_33); + StorageLive(_34); + _33 = copy _5; + _34 = copy _7; + StorageLive(_35); + _35 = copy ((*_3).1: usize); + StorageLive(_36); + _36 = copy ((*_3).3: usize); + _0 = Le(move _35, move _36); + StorageDead(_36); + StorageDead(_35); + StorageDead(_34); + StorageDead(_33); + StorageDead(_31); + StorageDead(_32); + StorageDead(_30); goto -> bb7; } bb7: { - StorageDead(_23); + StorageDead(_29); goto -> bb9; } bb8: { - StorageDead(_15); + StorageDead(_17); + StorageDead(_18); StorageDead(_16); - StorageDead(_14); _0 = const true; goto -> bb9; } bb9: { - StorageDead(_19); - StorageDead(_13); + StorageDead(_23); + StorageDead(_15); return; } } diff --git a/tests/pretty/hir-lifetimes.pp b/tests/pretty/hir-lifetimes.pp index 4d1ab9d383b..58de6d81915 100644 --- a/tests/pretty/hir-lifetimes.pp +++ b/tests/pretty/hir-lifetimes.pp @@ -69,7 +69,7 @@ type Q<'a> = dyn MyTrait<'a, 'a> + 'a; fn h<'b, F>(f: F, y: Foo<'b>) where F: for<'d> MyTrait<'d, 'b> { } // FIXME(?): attr printing is weird -#[attr = Repr([ReprC])] +#[attr = Repr {reprs: [ReprC]}] struct S<'a>(&'a u32); extern "C" { diff --git a/tests/pretty/hir-pretty-attr.pp b/tests/pretty/hir-pretty-attr.pp index d8cc8c424ca..db7489c1264 100644 --- a/tests/pretty/hir-pretty-attr.pp +++ b/tests/pretty/hir-pretty-attr.pp @@ -6,6 +6,6 @@ extern crate std; //@ pretty-mode:hir //@ pp-exact:hir-pretty-attr.pp -#[attr = Repr([ReprC, ReprPacked(Align(4 bytes)), ReprTransparent])] +#[attr = Repr {reprs: [ReprC, ReprPacked(Align(4 bytes)), ReprTransparent]}] struct Example { } diff --git a/tests/run-make/c-link-to-rust-va-list-fn/checkrust.rs b/tests/run-make/c-link-to-rust-va-list-fn/checkrust.rs index 36c9db106ec..63d8d713d62 100644 --- a/tests/run-make/c-link-to-rust-va-list-fn/checkrust.rs +++ b/tests/run-make/c-link-to-rust-va-list-fn/checkrust.rs @@ -1,7 +1,8 @@ #![crate_type = "staticlib"] #![feature(c_variadic)] +#![feature(cfg_select)] -use std::ffi::{CStr, CString, VaList, c_char, c_double, c_int, c_long, c_longlong}; +use std::ffi::{CStr, CString, VaList, VaListImpl, c_char, c_double, c_int, c_long, c_longlong}; macro_rules! continue_if { ($cond:expr) => { @@ -19,7 +20,7 @@ unsafe fn compare_c_str(ptr: *const c_char, val: &str) -> bool { } } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_list_0(mut ap: VaList) -> usize { continue_if!(ap.arg::<c_longlong>() == 1); continue_if!(ap.arg::<c_int>() == 2); @@ -27,7 +28,7 @@ pub unsafe extern "C" fn check_list_0(mut ap: VaList) -> usize { 0 } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_list_1(mut ap: VaList) -> usize { continue_if!(ap.arg::<c_int>() == -1); continue_if!(ap.arg::<c_int>() == 'A' as c_int); @@ -39,7 +40,7 @@ pub unsafe extern "C" fn check_list_1(mut ap: VaList) -> usize { 0 } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_list_2(mut ap: VaList) -> usize { continue_if!(ap.arg::<c_double>().floor() == 3.14f64.floor()); continue_if!(ap.arg::<c_long>() == 12); @@ -51,7 +52,7 @@ pub unsafe extern "C" fn check_list_2(mut ap: VaList) -> usize { 0 } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_list_copy_0(mut ap: VaList) -> usize { continue_if!(ap.arg::<c_double>().floor() == 6.28f64.floor()); continue_if!(ap.arg::<c_int>() == 16); @@ -64,14 +65,14 @@ pub unsafe extern "C" fn check_list_copy_0(mut ap: VaList) -> usize { ) } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_varargs_0(_: c_int, mut ap: ...) -> usize { continue_if!(ap.arg::<c_int>() == 42); continue_if!(compare_c_str(ap.arg::<*const c_char>(), "Hello, World!")); 0 } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_varargs_1(_: c_int, mut ap: ...) -> usize { continue_if!(ap.arg::<c_double>().floor() == 3.14f64.floor()); continue_if!(ap.arg::<c_long>() == 12); @@ -80,12 +81,12 @@ pub unsafe extern "C" fn check_varargs_1(_: c_int, mut ap: ...) -> usize { 0 } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_varargs_2(_: c_int, _ap: ...) -> usize { 0 } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_varargs_3(_: c_int, mut ap: ...) -> usize { continue_if!(ap.arg::<c_int>() == 1); continue_if!(ap.arg::<c_int>() == 2); @@ -100,7 +101,7 @@ pub unsafe extern "C" fn check_varargs_3(_: c_int, mut ap: ...) -> usize { 0 } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_varargs_4(_: c_double, mut ap: ...) -> usize { continue_if!(ap.arg::<c_double>() == 1.0); continue_if!(ap.arg::<c_double>() == 2.0); @@ -118,7 +119,7 @@ pub unsafe extern "C" fn check_varargs_4(_: c_double, mut ap: ...) -> usize { 0 } -#[no_mangle] +#[unsafe(no_mangle)] pub unsafe extern "C" fn check_varargs_5(_: c_int, mut ap: ...) -> usize { continue_if!(ap.arg::<c_double>() == 1.0); continue_if!(ap.arg::<c_int>() == 1); @@ -148,3 +149,42 @@ pub unsafe extern "C" fn check_varargs_5(_: c_int, mut ap: ...) -> usize { continue_if!(ap.arg::<c_double>() == 13.0); 0 } + +unsafe extern "C" { + fn test_variadic(_: c_int, ...) -> usize; + fn test_va_list_by_value(_: VaList) -> usize; + fn test_va_list_by_pointer(_: *mut VaListImpl) -> usize; + fn test_va_list_by_pointer_pointer(_: *mut *mut VaListImpl) -> usize; +} + +#[unsafe(no_mangle)] +extern "C" fn run_test_variadic() -> usize { + return unsafe { test_variadic(0, 1 as c_longlong, 2 as c_int, 3 as c_longlong) }; +} + +#[unsafe(no_mangle)] +extern "C" fn run_test_va_list_by_value() -> usize { + unsafe extern "C" fn helper(mut ap: ...) -> usize { + unsafe { test_va_list_by_value(ap.as_va_list()) } + } + + unsafe { helper(1 as c_longlong, 2 as c_int, 3 as c_longlong) } +} + +#[unsafe(no_mangle)] +extern "C" fn run_test_va_list_by_pointer() -> usize { + unsafe extern "C" fn helper(mut ap: ...) -> usize { + unsafe { test_va_list_by_pointer(&mut ap) } + } + + unsafe { helper(1 as c_longlong, 2 as c_int, 3 as c_longlong) } +} + +#[unsafe(no_mangle)] +extern "C" fn run_test_va_list_by_pointer_pointer() -> usize { + unsafe extern "C" fn helper(mut ap: ...) -> usize { + unsafe { test_va_list_by_pointer_pointer(&mut (&mut ap as *mut _)) } + } + + unsafe { helper(1 as c_longlong, 2 as c_int, 3 as c_longlong) } +} diff --git a/tests/run-make/c-link-to-rust-va-list-fn/test.c b/tests/run-make/c-link-to-rust-va-list-fn/test.c index b47a9357880..2bb93c0b5d0 100644 --- a/tests/run-make/c-link-to-rust-va-list-fn/test.c +++ b/tests/run-make/c-link-to-rust-va-list-fn/test.c @@ -15,6 +15,11 @@ extern size_t check_varargs_3(int fixed, ...); extern size_t check_varargs_4(double fixed, ...); extern size_t check_varargs_5(int fixed, ...); +extern size_t run_test_variadic(); +extern size_t run_test_va_list_by_value(); +extern size_t run_test_va_list_by_pointer(); +extern size_t run_test_va_list_by_pointer_pointer(); + int test_rust(size_t (*fn)(va_list), ...) { size_t ret = 0; va_list ap; @@ -47,5 +52,53 @@ int main(int argc, char* argv[]) { assert(check_varargs_5(0, 1.0, 1, 2.0, 2, 3.0, 3, 4.0, 4, 5, 5.0, 6, 6.0, 7, 7.0, 8, 8.0, 9, 9.0, 10, 10.0, 11, 11.0, 12, 12.0, 13, 13.0) == 0); + assert(run_test_variadic() == 0); + assert(run_test_va_list_by_value() == 0); + assert(run_test_va_list_by_pointer() == 0); + assert(run_test_va_list_by_pointer_pointer() == 0); + + return 0; +} + +#define continue_if_else_end(cond) \ + do { if (!(cond)) { va_end(ap); return 0xff; } } while (0) + +size_t test_variadic(int unused, ...) { + va_list ap; + va_start(ap, unused); + + continue_if_else_end(va_arg(ap, long long) == 1); + continue_if_else_end(va_arg(ap, int) == 2); + continue_if_else_end(va_arg(ap, long long) == 3); + + va_end(ap); + + return 0; +} + +#define continue_if(cond) \ + do { if (!(cond)) { return 0xff; } } while (0) + +size_t test_va_list_by_value(va_list ap) { + continue_if(va_arg(ap, long long) == 1); + continue_if(va_arg(ap, int) == 2); + continue_if(va_arg(ap, long long) == 3); + + return 0; +} + +size_t test_va_list_by_pointer(va_list *ap) { + continue_if(va_arg(*ap, long long) == 1); + continue_if(va_arg(*ap, int) == 2); + continue_if(va_arg(*ap, long long) == 3); + + return 0; +} + +size_t test_va_list_by_pointer_pointer(va_list **ap) { + continue_if(va_arg(**ap, long long) == 1); + continue_if(va_arg(**ap, int) == 2); + continue_if(va_arg(**ap, long long) == 3); + return 0; } diff --git a/tests/ui/realloc-16687.rs b/tests/ui/allocator/alloc-shrink-oob-read.rs index 43810a469df..b9edfca3b7b 100644 --- a/tests/ui/realloc-16687.rs +++ b/tests/ui/allocator/alloc-shrink-oob-read.rs @@ -1,13 +1,13 @@ +//! Sanity check for out-of-bounds read caused by copying the entire original buffer on shrink. +//! +//! Regression test for: <https://github.com/rust-lang/rust/issues/16687> + //@ run-pass -// alloc::heap::reallocate test. -// -// Ideally this would be revised to use no_std, but for now it serves -// well enough to reproduce (and illustrate) the bug from #16687. #![feature(allocator_api)] #![feature(slice_ptr_get)] -use std::alloc::{handle_alloc_error, Allocator, Global, Layout}; +use std::alloc::{Allocator, Global, Layout, handle_alloc_error}; use std::ptr::{self, NonNull}; fn main() { diff --git a/tests/ui/async-await/async-fn/mbe-async-trait-bound-theoretical-regression.rs b/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.rs index ea67831b68e..ea67831b68e 100644 --- a/tests/ui/async-await/async-fn/mbe-async-trait-bound-theoretical-regression.rs +++ b/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.rs diff --git a/tests/ui/async-await/async-fn/mbe-async-trait-bound-theoretical-regression.stderr b/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.stderr index a463944d113..6c3044e64d2 100644 --- a/tests/ui/async-await/async-fn/mbe-async-trait-bound-theoretical-regression.stderr +++ b/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.stderr @@ -1,5 +1,5 @@ error: ty - --> $DIR/mbe-async-trait-bound-theoretical-regression.rs:8:19 + --> $DIR/macro-async-trait-bound-theoretical-regression.rs:8:19 | LL | ($ty:ty) => { compile_error!("ty"); }; | ^^^^^^^^^^^^^^^^^^^^ @@ -10,7 +10,7 @@ LL | demo! { impl async Trait } = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) error: ty - --> $DIR/mbe-async-trait-bound-theoretical-regression.rs:8:19 + --> $DIR/macro-async-trait-bound-theoretical-regression.rs:8:19 | LL | ($ty:ty) => { compile_error!("ty"); }; | ^^^^^^^^^^^^^^^^^^^^ @@ -21,7 +21,7 @@ LL | demo! { dyn async Trait } = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0658]: `async` trait bounds are unstable - --> $DIR/mbe-async-trait-bound-theoretical-regression.rs:15:14 + --> $DIR/macro-async-trait-bound-theoretical-regression.rs:15:14 | LL | demo! { impl async Trait } | ^^^^^ @@ -32,7 +32,7 @@ LL | demo! { impl async Trait } = help: use the desugared name of the async trait, such as `AsyncFn` error[E0658]: `async` trait bounds are unstable - --> $DIR/mbe-async-trait-bound-theoretical-regression.rs:18:13 + --> $DIR/macro-async-trait-bound-theoretical-regression.rs:18:13 | LL | demo! { dyn async Trait } | ^^^^^ diff --git a/tests/ui/issues-71798.rs b/tests/ui/async-await/impl-future-escaping-bound-vars-ice.rs index 14b6c0f3581..ea30e8c839f 100644 --- a/tests/ui/issues-71798.rs +++ b/tests/ui/async-await/impl-future-escaping-bound-vars-ice.rs @@ -1,3 +1,7 @@ +//! Regression test for issue https://github.com/rust-lang/rust/issues/71798 +// ICE with escaping bound variables when impl Future + '_ +// returns non-Future type combined with syntax errors + fn test_ref(x: &u32) -> impl std::future::Future<Output = u32> + '_ { //~^ ERROR `u32` is not a future *x diff --git a/tests/ui/issues-71798.stderr b/tests/ui/async-await/impl-future-escaping-bound-vars-ice.stderr index 52dd14ccb0a..5beca58e13c 100644 --- a/tests/ui/issues-71798.stderr +++ b/tests/ui/async-await/impl-future-escaping-bound-vars-ice.stderr @@ -1,11 +1,11 @@ error[E0425]: cannot find value `u` in this scope - --> $DIR/issues-71798.rs:7:24 + --> $DIR/impl-future-escaping-bound-vars-ice.rs:11:24 | LL | let _ = test_ref & u; | ^ not found in this scope error[E0277]: `u32` is not a future - --> $DIR/issues-71798.rs:1:25 + --> $DIR/impl-future-escaping-bound-vars-ice.rs:5:25 | LL | fn test_ref(x: &u32) -> impl std::future::Future<Output = u32> + '_ { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `u32` is not a future diff --git a/tests/ui/attributes/malformed-attrs.rs b/tests/ui/attributes/malformed-attrs.rs index dbe9c35b0a4..aa52de63a60 100644 --- a/tests/ui/attributes/malformed-attrs.rs +++ b/tests/ui/attributes/malformed-attrs.rs @@ -47,6 +47,7 @@ //~^ ERROR malformed #[repr] //~^ ERROR malformed +//~| ERROR is not supported on function items #[rustc_as_ptr = 5] //~^ ERROR malformed #[inline = 5] @@ -219,4 +220,11 @@ macro_rules! slump { () => {} } +#[ignore = 1] +//~^ ERROR valid forms for the attribute are +//~| WARN this was previously accepted by the compiler +fn thing() { + +} + fn main() {} diff --git a/tests/ui/attributes/malformed-attrs.stderr b/tests/ui/attributes/malformed-attrs.stderr index 32b0ddf87ba..2f7bf50ead5 100644 --- a/tests/ui/attributes/malformed-attrs.stderr +++ b/tests/ui/attributes/malformed-attrs.stderr @@ -1,11 +1,11 @@ error: `cfg` is not followed by parentheses - --> $DIR/malformed-attrs.rs:101:1 + --> $DIR/malformed-attrs.rs:102:1 | LL | #[cfg] | ^^^^^^ help: expected syntax is: `cfg(/* predicate */)` error: malformed `cfg_attr` attribute input - --> $DIR/malformed-attrs.rs:103:1 + --> $DIR/malformed-attrs.rs:104:1 | LL | #[cfg_attr] | ^^^^^^^^^^^ @@ -17,7 +17,7 @@ LL | #[cfg_attr(condition, attribute, other_attribute, ...)] | ++++++++++++++++++++++++++++++++++++++++++++ error[E0463]: can't find crate for `wloop` - --> $DIR/malformed-attrs.rs:210:1 + --> $DIR/malformed-attrs.rs:211:1 | LL | extern crate wloop; | ^^^^^^^^^^^^^^^^^^^ can't find crate @@ -35,19 +35,19 @@ LL | #![windows_subsystem] | ^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![windows_subsystem = "windows|console"]` error: malformed `crate_name` attribute input - --> $DIR/malformed-attrs.rs:73:1 + --> $DIR/malformed-attrs.rs:74:1 | LL | #[crate_name] | ^^^^^^^^^^^^^ help: must be of the form: `#[crate_name = "name"]` error: malformed `export_stable` attribute input - --> $DIR/malformed-attrs.rs:80:1 + --> $DIR/malformed-attrs.rs:81:1 | LL | #[export_stable = 1] | ^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[export_stable]` error: malformed `coverage` attribute input - --> $DIR/malformed-attrs.rs:89:1 + --> $DIR/malformed-attrs.rs:90:1 | LL | #[coverage] | ^^^^^^^^^^^ @@ -60,49 +60,49 @@ LL | #[coverage(on)] | ++++ error: malformed `no_sanitize` attribute input - --> $DIR/malformed-attrs.rs:91:1 + --> $DIR/malformed-attrs.rs:92:1 | LL | #[no_sanitize] | ^^^^^^^^^^^^^^ help: must be of the form: `#[no_sanitize(address, kcfi, memory, thread)]` error: malformed `proc_macro` attribute input - --> $DIR/malformed-attrs.rs:98:1 + --> $DIR/malformed-attrs.rs:99:1 | LL | #[proc_macro = 18] | ^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[proc_macro]` error: malformed `instruction_set` attribute input - --> $DIR/malformed-attrs.rs:105:1 + --> $DIR/malformed-attrs.rs:106:1 | LL | #[instruction_set] | ^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[instruction_set(set)]` error: malformed `patchable_function_entry` attribute input - --> $DIR/malformed-attrs.rs:107:1 + --> $DIR/malformed-attrs.rs:108:1 | LL | #[patchable_function_entry] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[patchable_function_entry(prefix_nops = m, entry_nops = n)]` error: malformed `coroutine` attribute input - --> $DIR/malformed-attrs.rs:110:5 + --> $DIR/malformed-attrs.rs:111:5 | LL | #[coroutine = 63] || {} | ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[coroutine]` error: malformed `proc_macro_attribute` attribute input - --> $DIR/malformed-attrs.rs:115:1 + --> $DIR/malformed-attrs.rs:116:1 | LL | #[proc_macro_attribute = 19] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[proc_macro_attribute]` error: malformed `proc_macro_derive` attribute input - --> $DIR/malformed-attrs.rs:122:1 + --> $DIR/malformed-attrs.rs:123:1 | LL | #[proc_macro_derive] | ^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[proc_macro_derive(TraitName, /*opt*/ attributes(name1, name2, ...))]` error: malformed `must_not_suspend` attribute input - --> $DIR/malformed-attrs.rs:131:1 + --> $DIR/malformed-attrs.rs:132:1 | LL | #[must_not_suspend()] | ^^^^^^^^^^^^^^^^^^^^^ @@ -117,109 +117,109 @@ LL + #[must_not_suspend] | error: malformed `cfi_encoding` attribute input - --> $DIR/malformed-attrs.rs:133:1 + --> $DIR/malformed-attrs.rs:134:1 | LL | #[cfi_encoding] | ^^^^^^^^^^^^^^^ help: must be of the form: `#[cfi_encoding = "encoding"]` error: malformed `type_const` attribute input - --> $DIR/malformed-attrs.rs:142:5 + --> $DIR/malformed-attrs.rs:143:5 | LL | #[type_const = 1] | ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[type_const]` error: malformed `marker` attribute input - --> $DIR/malformed-attrs.rs:154:1 + --> $DIR/malformed-attrs.rs:155:1 | LL | #[marker = 3] | ^^^^^^^^^^^^^ help: must be of the form: `#[marker]` error: malformed `fundamental` attribute input - --> $DIR/malformed-attrs.rs:156:1 + --> $DIR/malformed-attrs.rs:157:1 | LL | #[fundamental()] | ^^^^^^^^^^^^^^^^ help: must be of the form: `#[fundamental]` error: malformed `ffi_pure` attribute input - --> $DIR/malformed-attrs.rs:164:5 + --> $DIR/malformed-attrs.rs:165:5 | LL | #[unsafe(ffi_pure = 1)] | ^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[ffi_pure]` error: malformed `link_ordinal` attribute input - --> $DIR/malformed-attrs.rs:166:5 + --> $DIR/malformed-attrs.rs:167:5 | LL | #[link_ordinal] | ^^^^^^^^^^^^^^^ help: must be of the form: `#[link_ordinal(ordinal)]` error: malformed `ffi_const` attribute input - --> $DIR/malformed-attrs.rs:170:5 + --> $DIR/malformed-attrs.rs:171:5 | LL | #[unsafe(ffi_const = 1)] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[ffi_const]` error: malformed `linkage` attribute input - --> $DIR/malformed-attrs.rs:172:5 + --> $DIR/malformed-attrs.rs:173:5 | LL | #[linkage] | ^^^^^^^^^^ help: must be of the form: `#[linkage = "external|internal|..."]` error: malformed `allow` attribute input - --> $DIR/malformed-attrs.rs:177:1 + --> $DIR/malformed-attrs.rs:178:1 | LL | #[allow] | ^^^^^^^^ help: must be of the form: `#[allow(lint1, lint2, ..., /*opt*/ reason = "...")]` error: malformed `expect` attribute input - --> $DIR/malformed-attrs.rs:179:1 + --> $DIR/malformed-attrs.rs:180:1 | LL | #[expect] | ^^^^^^^^^ help: must be of the form: `#[expect(lint1, lint2, ..., /*opt*/ reason = "...")]` error: malformed `warn` attribute input - --> $DIR/malformed-attrs.rs:181:1 + --> $DIR/malformed-attrs.rs:182:1 | LL | #[warn] | ^^^^^^^ help: must be of the form: `#[warn(lint1, lint2, ..., /*opt*/ reason = "...")]` error: malformed `deny` attribute input - --> $DIR/malformed-attrs.rs:183:1 + --> $DIR/malformed-attrs.rs:184:1 | LL | #[deny] | ^^^^^^^ help: must be of the form: `#[deny(lint1, lint2, ..., /*opt*/ reason = "...")]` error: malformed `forbid` attribute input - --> $DIR/malformed-attrs.rs:185:1 + --> $DIR/malformed-attrs.rs:186:1 | LL | #[forbid] | ^^^^^^^^^ help: must be of the form: `#[forbid(lint1, lint2, ..., /*opt*/ reason = "...")]` error: malformed `debugger_visualizer` attribute input - --> $DIR/malformed-attrs.rs:187:1 + --> $DIR/malformed-attrs.rs:188:1 | LL | #[debugger_visualizer] | ^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[debugger_visualizer(natvis_file = "...", gdb_script_file = "...")]` error: malformed `automatically_derived` attribute input - --> $DIR/malformed-attrs.rs:190:1 + --> $DIR/malformed-attrs.rs:191:1 | LL | #[automatically_derived = 18] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[automatically_derived]` error: malformed `thread_local` attribute input - --> $DIR/malformed-attrs.rs:202:1 + --> $DIR/malformed-attrs.rs:203:1 | LL | #[thread_local()] | ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[thread_local]` error: malformed `no_link` attribute input - --> $DIR/malformed-attrs.rs:206:1 + --> $DIR/malformed-attrs.rs:207:1 | LL | #[no_link()] | ^^^^^^^^^^^^ help: must be of the form: `#[no_link]` error: malformed `macro_use` attribute input - --> $DIR/malformed-attrs.rs:208:1 + --> $DIR/malformed-attrs.rs:209:1 | LL | #[macro_use = 1] | ^^^^^^^^^^^^^^^^ @@ -234,7 +234,7 @@ LL + #[macro_use] | error: malformed `macro_export` attribute input - --> $DIR/malformed-attrs.rs:213:1 + --> $DIR/malformed-attrs.rs:214:1 | LL | #[macro_export = 18] | ^^^^^^^^^^^^^^^^^^^^ @@ -249,31 +249,31 @@ LL + #[macro_export] | error: malformed `allow_internal_unsafe` attribute input - --> $DIR/malformed-attrs.rs:215:1 + --> $DIR/malformed-attrs.rs:216:1 | LL | #[allow_internal_unsafe = 1] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[allow_internal_unsafe]` error: the `#[proc_macro]` attribute is only usable with crates of the `proc-macro` crate type - --> $DIR/malformed-attrs.rs:98:1 + --> $DIR/malformed-attrs.rs:99:1 | LL | #[proc_macro = 18] | ^^^^^^^^^^^^^^^^^^ error: the `#[proc_macro_attribute]` attribute is only usable with crates of the `proc-macro` crate type - --> $DIR/malformed-attrs.rs:115:1 + --> $DIR/malformed-attrs.rs:116:1 | LL | #[proc_macro_attribute = 19] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: the `#[proc_macro_derive]` attribute is only usable with crates of the `proc-macro` crate type - --> $DIR/malformed-attrs.rs:122:1 + --> $DIR/malformed-attrs.rs:123:1 | LL | #[proc_macro_derive] | ^^^^^^^^^^^^^^^^^^^^ error[E0658]: allow_internal_unsafe side-steps the unsafe_code lint - --> $DIR/malformed-attrs.rs:215:1 + --> $DIR/malformed-attrs.rs:216:1 | LL | #[allow_internal_unsafe = 1] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -292,7 +292,7 @@ LL | #[doc] = note: `#[deny(ill_formed_attribute_input)]` on by default error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]` - --> $DIR/malformed-attrs.rs:75:1 + --> $DIR/malformed-attrs.rs:76:1 | LL | #[doc] | ^^^^^^ @@ -301,7 +301,7 @@ LL | #[doc] = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> error: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...", /*opt*/ import_name_type = "decorated|noprefix|undecorated")]` - --> $DIR/malformed-attrs.rs:82:1 + --> $DIR/malformed-attrs.rs:83:1 | LL | #[link] | ^^^^^^^ @@ -309,17 +309,8 @@ LL | #[link] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> -error: valid forms for the attribute are `#[ignore]` and `#[ignore = "reason"]` - --> $DIR/malformed-attrs.rs:93:1 - | -LL | #[ignore()] - | ^^^^^^^^^^^ - | - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - error: invalid argument - --> $DIR/malformed-attrs.rs:187:1 + --> $DIR/malformed-attrs.rs:188:1 | LL | #[debugger_visualizer] | ^^^^^^^^^^^^^^^^^^^^^^ @@ -391,7 +382,7 @@ LL | #[repr] | help: must be of the form: `#[repr(C | Rust | align(...) | packed(...) | <integer type> | transparent)]` error[E0565]: malformed `rustc_as_ptr` attribute input - --> $DIR/malformed-attrs.rs:50:1 + --> $DIR/malformed-attrs.rs:51:1 | LL | #[rustc_as_ptr = 5] | ^^^^^^^^^^^^^^^---^ @@ -400,7 +391,7 @@ LL | #[rustc_as_ptr = 5] | help: must be of the form: `#[rustc_as_ptr]` error[E0539]: malformed `align` attribute input - --> $DIR/malformed-attrs.rs:55:1 + --> $DIR/malformed-attrs.rs:56:1 | LL | #[align] | ^^^^^^^^ @@ -409,7 +400,7 @@ LL | #[align] | help: must be of the form: `#[align(<alignment in bytes>)]` error[E0539]: malformed `optimize` attribute input - --> $DIR/malformed-attrs.rs:57:1 + --> $DIR/malformed-attrs.rs:58:1 | LL | #[optimize] | ^^^^^^^^^^^ @@ -418,7 +409,7 @@ LL | #[optimize] | help: must be of the form: `#[optimize(size|speed|none)]` error[E0565]: malformed `cold` attribute input - --> $DIR/malformed-attrs.rs:59:1 + --> $DIR/malformed-attrs.rs:60:1 | LL | #[cold = 1] | ^^^^^^^---^ @@ -427,13 +418,13 @@ LL | #[cold = 1] | help: must be of the form: `#[cold]` error: valid forms for the attribute are `#[must_use = "reason"]` and `#[must_use]` - --> $DIR/malformed-attrs.rs:61:1 + --> $DIR/malformed-attrs.rs:62:1 | LL | #[must_use()] | ^^^^^^^^^^^^^ error[E0565]: malformed `no_mangle` attribute input - --> $DIR/malformed-attrs.rs:63:1 + --> $DIR/malformed-attrs.rs:64:1 | LL | #[no_mangle = 1] | ^^^^^^^^^^^^---^ @@ -442,7 +433,7 @@ LL | #[no_mangle = 1] | help: must be of the form: `#[no_mangle]` error[E0565]: malformed `naked` attribute input - --> $DIR/malformed-attrs.rs:65:1 + --> $DIR/malformed-attrs.rs:66:1 | LL | #[unsafe(naked())] | ^^^^^^^^^^^^^^--^^ @@ -451,7 +442,7 @@ LL | #[unsafe(naked())] | help: must be of the form: `#[naked]` error[E0565]: malformed `track_caller` attribute input - --> $DIR/malformed-attrs.rs:67:1 + --> $DIR/malformed-attrs.rs:68:1 | LL | #[track_caller()] | ^^^^^^^^^^^^^^--^ @@ -460,13 +451,13 @@ LL | #[track_caller()] | help: must be of the form: `#[track_caller]` error[E0539]: malformed `export_name` attribute input - --> $DIR/malformed-attrs.rs:69:1 + --> $DIR/malformed-attrs.rs:70:1 | LL | #[export_name()] | ^^^^^^^^^^^^^^^^ help: must be of the form: `#[export_name = "name"]` error[E0805]: malformed `used` attribute input - --> $DIR/malformed-attrs.rs:71:1 + --> $DIR/malformed-attrs.rs:72:1 | LL | #[used()] | ^^^^^^--^ @@ -482,7 +473,7 @@ LL + #[used] | error[E0539]: malformed `target_feature` attribute input - --> $DIR/malformed-attrs.rs:78:1 + --> $DIR/malformed-attrs.rs:79:1 | LL | #[target_feature] | ^^^^^^^^^^^^^^^^^ @@ -491,19 +482,19 @@ LL | #[target_feature] | help: must be of the form: `#[target_feature(enable = "feat1, feat2")]` error[E0539]: malformed `link_name` attribute input - --> $DIR/malformed-attrs.rs:85:1 + --> $DIR/malformed-attrs.rs:86:1 | LL | #[link_name] | ^^^^^^^^^^^^ help: must be of the form: `#[link_name = "name"]` error[E0539]: malformed `link_section` attribute input - --> $DIR/malformed-attrs.rs:87:1 + --> $DIR/malformed-attrs.rs:88:1 | LL | #[link_section] | ^^^^^^^^^^^^^^^ help: must be of the form: `#[link_section = "name"]` error[E0565]: malformed `no_implicit_prelude` attribute input - --> $DIR/malformed-attrs.rs:96:1 + --> $DIR/malformed-attrs.rs:97:1 | LL | #[no_implicit_prelude = 23] | ^^^^^^^^^^^^^^^^^^^^^^----^ @@ -512,7 +503,7 @@ LL | #[no_implicit_prelude = 23] | help: must be of the form: `#[no_implicit_prelude]` error[E0539]: malformed `must_use` attribute input - --> $DIR/malformed-attrs.rs:118:1 + --> $DIR/malformed-attrs.rs:119:1 | LL | #[must_use = 1] | ^^^^^^^^^^^^^-^ @@ -529,7 +520,7 @@ LL + #[must_use] | error[E0539]: malformed `rustc_layout_scalar_valid_range_start` attribute input - --> $DIR/malformed-attrs.rs:127:1 + --> $DIR/malformed-attrs.rs:128:1 | LL | #[rustc_layout_scalar_valid_range_start] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -538,7 +529,7 @@ LL | #[rustc_layout_scalar_valid_range_start] | help: must be of the form: `#[rustc_layout_scalar_valid_range_start(start)]` error[E0539]: malformed `rustc_layout_scalar_valid_range_end` attribute input - --> $DIR/malformed-attrs.rs:129:1 + --> $DIR/malformed-attrs.rs:130:1 | LL | #[rustc_layout_scalar_valid_range_end] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -547,7 +538,7 @@ LL | #[rustc_layout_scalar_valid_range_end] | help: must be of the form: `#[rustc_layout_scalar_valid_range_end(end)]` error[E0565]: malformed `non_exhaustive` attribute input - --> $DIR/malformed-attrs.rs:196:1 + --> $DIR/malformed-attrs.rs:197:1 | LL | #[non_exhaustive = 1] | ^^^^^^^^^^^^^^^^^---^ @@ -567,8 +558,20 @@ LL | | #[coroutine = 63] || {} LL | | } | |_- not a `const fn` +error: `#[repr(align(...))]` is not supported on function items + --> $DIR/malformed-attrs.rs:48:1 + | +LL | #[repr] + | ^^^^^^^ + | +help: use `#[align(...)]` instead + --> $DIR/malformed-attrs.rs:48:1 + | +LL | #[repr] + | ^^^^^^^ + warning: `#[diagnostic::do_not_recommend]` does not expect any arguments - --> $DIR/malformed-attrs.rs:148:1 + --> $DIR/malformed-attrs.rs:149:1 | LL | #[diagnostic::do_not_recommend()] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -576,7 +579,7 @@ LL | #[diagnostic::do_not_recommend()] = note: `#[warn(unknown_or_malformed_diagnostic_attributes)]` on by default warning: missing options for `on_unimplemented` attribute - --> $DIR/malformed-attrs.rs:137:1 + --> $DIR/malformed-attrs.rs:138:1 | LL | #[diagnostic::on_unimplemented] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -584,7 +587,7 @@ LL | #[diagnostic::on_unimplemented] = help: at least one of the `message`, `note` and `label` options are expected warning: malformed `on_unimplemented` attribute - --> $DIR/malformed-attrs.rs:139:1 + --> $DIR/malformed-attrs.rs:140:1 | LL | #[diagnostic::on_unimplemented = 1] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here @@ -592,7 +595,7 @@ LL | #[diagnostic::on_unimplemented = 1] = help: only `message`, `note` and `label` are allowed as options error: valid forms for the attribute are `#[inline(always|never)]` and `#[inline]` - --> $DIR/malformed-attrs.rs:52:1 + --> $DIR/malformed-attrs.rs:53:1 | LL | #[inline = 5] | ^^^^^^^^^^^^^ @@ -600,8 +603,26 @@ LL | #[inline = 5] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> +error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]` + --> $DIR/malformed-attrs.rs:94:1 + | +LL | #[ignore()] + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> + +error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]` + --> $DIR/malformed-attrs.rs:223:1 + | +LL | #[ignore = 1] + | ^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> + error[E0308]: mismatched types - --> $DIR/malformed-attrs.rs:110:23 + --> $DIR/malformed-attrs.rs:111:23 | LL | fn test() { | - help: a return type might be missing here: `-> _` @@ -609,9 +630,9 @@ LL | #[coroutine = 63] || {} | ^^^^^ expected `()`, found coroutine | = note: expected unit type `()` - found coroutine `{coroutine@$DIR/malformed-attrs.rs:110:23: 110:25}` + found coroutine `{coroutine@$DIR/malformed-attrs.rs:111:23: 111:25}` -error: aborting due to 73 previous errors; 3 warnings emitted +error: aborting due to 75 previous errors; 3 warnings emitted Some errors have detailed explanations: E0308, E0463, E0539, E0565, E0658, E0805. For more information about an error, try `rustc --explain E0308`. diff --git a/tests/ui/reexport-test-harness-main.rs b/tests/ui/attributes/reexport-test-harness-entry-point.rs index f79828fc7d6..95765a719ed 100644 --- a/tests/ui/reexport-test-harness-main.rs +++ b/tests/ui/attributes/reexport-test-harness-entry-point.rs @@ -1,3 +1,6 @@ +//! Check that `#[reexport_test_harness_main]` correctly reexports the test harness entry point +//! and allows it to be called from within the code. + //@ run-pass //@ compile-flags:--test diff --git a/tests/ui/phantom-auto-trait.rs b/tests/ui/auto-traits/auto-trait-phantom-data-bounds.rs index 0172ca335c3..6d1c4c87fad 100644 --- a/tests/ui/phantom-auto-trait.rs +++ b/tests/ui/auto-traits/auto-trait-phantom-data-bounds.rs @@ -1,9 +1,9 @@ -// Ensure that auto trait checks `T` when it encounters a `PhantomData<T>` field, instead of -// checking the `PhantomData<T>` type itself (which almost always implements an auto trait). +//! Ensure that auto trait checks `T` when it encounters a `PhantomData<T>` field, instead of +//! checking the `PhantomData<T>` type itself (which almost always implements an auto trait). #![feature(auto_traits)] -use std::marker::{PhantomData}; +use std::marker::PhantomData; unsafe auto trait Zen {} diff --git a/tests/ui/phantom-auto-trait.stderr b/tests/ui/auto-traits/auto-trait-phantom-data-bounds.stderr index ffd4c3a0e1a..56c2e8ff257 100644 --- a/tests/ui/phantom-auto-trait.stderr +++ b/tests/ui/auto-traits/auto-trait-phantom-data-bounds.stderr @@ -1,5 +1,5 @@ error[E0277]: `T` cannot be shared between threads safely - --> $DIR/phantom-auto-trait.rs:21:12 + --> $DIR/auto-trait-phantom-data-bounds.rs:21:12 | LL | is_zen(x) | ------ ^ `T` cannot be shared between threads safely @@ -7,19 +7,19 @@ LL | is_zen(x) | required by a bound introduced by this call | note: required for `&T` to implement `Zen` - --> $DIR/phantom-auto-trait.rs:10:24 + --> $DIR/auto-trait-phantom-data-bounds.rs:10:24 | LL | unsafe impl<'a, T: 'a> Zen for &'a T where T: Sync {} | ^^^ ^^^^^ ---- unsatisfied trait bound introduced here note: required because it appears within the type `PhantomData<&T>` --> $SRC_DIR/core/src/marker.rs:LL:COL note: required because it appears within the type `Guard<'_, T>` - --> $DIR/phantom-auto-trait.rs:12:8 + --> $DIR/auto-trait-phantom-data-bounds.rs:12:8 | LL | struct Guard<'a, T: 'a> { | ^^^^^ note: required by a bound in `is_zen` - --> $DIR/phantom-auto-trait.rs:18:14 + --> $DIR/auto-trait-phantom-data-bounds.rs:18:14 | LL | fn is_zen<T: Zen>(_: T) {} | ^^^ required by this bound in `is_zen` @@ -29,7 +29,7 @@ LL | fn not_sync<T: std::marker::Sync>(x: Guard<T>) { | +++++++++++++++++++ error[E0277]: `T` cannot be shared between threads safely - --> $DIR/phantom-auto-trait.rs:26:12 + --> $DIR/auto-trait-phantom-data-bounds.rs:26:12 | LL | is_zen(x) | ------ ^ `T` cannot be shared between threads safely @@ -37,24 +37,24 @@ LL | is_zen(x) | required by a bound introduced by this call | note: required for `&T` to implement `Zen` - --> $DIR/phantom-auto-trait.rs:10:24 + --> $DIR/auto-trait-phantom-data-bounds.rs:10:24 | LL | unsafe impl<'a, T: 'a> Zen for &'a T where T: Sync {} | ^^^ ^^^^^ ---- unsatisfied trait bound introduced here note: required because it appears within the type `PhantomData<&T>` --> $SRC_DIR/core/src/marker.rs:LL:COL note: required because it appears within the type `Guard<'_, T>` - --> $DIR/phantom-auto-trait.rs:12:8 + --> $DIR/auto-trait-phantom-data-bounds.rs:12:8 | LL | struct Guard<'a, T: 'a> { | ^^^^^ note: required because it appears within the type `Nested<Guard<'_, T>>` - --> $DIR/phantom-auto-trait.rs:16:8 + --> $DIR/auto-trait-phantom-data-bounds.rs:16:8 | LL | struct Nested<T>(T); | ^^^^^^ note: required by a bound in `is_zen` - --> $DIR/phantom-auto-trait.rs:18:14 + --> $DIR/auto-trait-phantom-data-bounds.rs:18:14 | LL | fn is_zen<T: Zen>(_: T) {} | ^^^ required by this bound in `is_zen` diff --git a/tests/ui/binop/binop-evaluation-order-primitive.rs b/tests/ui/binop/binop-evaluation-order-primitive.rs new file mode 100644 index 00000000000..33266d1c047 --- /dev/null +++ b/tests/ui/binop/binop-evaluation-order-primitive.rs @@ -0,0 +1,15 @@ +//! Test evaluation order in binary operations with primitive types. + +//@ run-pass + +fn main() { + let x = Box::new(0); + assert_eq!( + 0, + *x + { + drop(x); + let _ = Box::new(main); + 0 + } + ); +} diff --git a/tests/ui/op-assign-builtins-by-ref.rs b/tests/ui/binop/compound-assign-by-ref.rs index 73788da9232..e1f519a137f 100644 --- a/tests/ui/op-assign-builtins-by-ref.rs +++ b/tests/ui/binop/compound-assign-by-ref.rs @@ -1,9 +1,8 @@ +//! Test compound assignment operators with reference right-hand side. + //@ run-pass fn main() { - // test compound assignment operators with ref as right-hand side, - // for each operator, with various types as operands. - // test AddAssign { let mut x = 3i8; diff --git a/tests/ui/cfg/nested-cfg-attr-conditional-compilation.rs b/tests/ui/cfg/nested-cfg-attr-conditional-compilation.rs new file mode 100644 index 00000000000..7618e83a642 --- /dev/null +++ b/tests/ui/cfg/nested-cfg-attr-conditional-compilation.rs @@ -0,0 +1,18 @@ +//! Test that nested `cfg_attr` attributes work correctly for conditional compilation. +//! This checks that `cfg_attr` can be arbitrarily deeply nested and that the +//! expansion works from outside to inside, eventually applying the innermost +//! conditional compilation directive. +//! +//! In this test, `cfg_attr(all(), cfg_attr(all(), cfg(false)))` should expand to: +//! 1. `cfg_attr(all(), cfg(false))` (outer cfg_attr applied) +//! 2. `cfg(false)` (inner cfg_attr applied) +//! 3. Function `f` is excluded from compilation +//! +//! Added in <https://github.com/rust-lang/rust/pull/34216>. + +#[cfg_attr(all(), cfg_attr(all(), cfg(false)))] +fn f() {} + +fn main() { + f() //~ ERROR cannot find function `f` in this scope +} diff --git a/tests/ui/nested-cfg-attrs.stderr b/tests/ui/cfg/nested-cfg-attr-conditional-compilation.stderr index 16c29307143..ddb8ea1e13a 100644 --- a/tests/ui/nested-cfg-attrs.stderr +++ b/tests/ui/cfg/nested-cfg-attr-conditional-compilation.stderr @@ -1,8 +1,8 @@ error[E0425]: cannot find function `f` in this scope - --> $DIR/nested-cfg-attrs.rs:4:13 + --> $DIR/nested-cfg-attr-conditional-compilation.rs:17:5 | -LL | fn main() { f() } - | ^ not found in this scope +LL | f() + | ^ not found in this scope error: aborting due to 1 previous error diff --git a/tests/ui/closures/closure-capture-after-clone.rs b/tests/ui/closures/closure-capture-after-clone.rs new file mode 100644 index 00000000000..29fba147909 --- /dev/null +++ b/tests/ui/closures/closure-capture-after-clone.rs @@ -0,0 +1,39 @@ +//! Regression test for issue #1399 +//! +//! This tests that when a variable is used (via clone) and then later +//! captured by a closure, the last-use analysis doesn't incorrectly optimize +//! the earlier use as a "last use" and perform an invalid move. +//! +//! The sequence being tested: +//! 1. Create variable `k` +//! 2. Use `k.clone()` for some purpose +//! 3. Later capture `k` in a closure +//! +//! The analysis must not treat step 2 as the "last use" since step 3 needs `k`. +//! +//! See: https://github.com/rust-lang/rust/issues/1399 + +//@ run-pass + +struct A { + _a: Box<isize>, +} + +pub fn main() { + fn invoke<F>(f: F) + where + F: FnOnce(), + { + f(); + } + + let k: Box<_> = 22.into(); + + // This clone should NOT be treated as "last use" of k + // even though k is not used again until the closure + let _u = A { _a: k.clone() }; + + // Here k is actually captured by the closure + // The last-use analyzer must have accounted for this when processing the clone above + invoke(|| println!("{}", k.clone())); +} diff --git a/tests/ui/closures/closure-last-use-move.rs b/tests/ui/closures/closure-last-use-move.rs new file mode 100644 index 00000000000..f5b99d87f09 --- /dev/null +++ b/tests/ui/closures/closure-last-use-move.rs @@ -0,0 +1,33 @@ +//! Regression test for issue #1818 +//! last-use analysis in closures should allow moves instead of requiring copies. +//! +//! The original issue was that the compiler incorrectly flagged certain return values +//! in anonymous functions/closures as requiring copies of non-copyable values, when +//! they should have been treated as moves (since they were the last use of the value). +//! +//! See: https://github.com/rust-lang/rust/issues/1818 + +//@ run-pass + +fn apply<T, F>(s: String, mut f: F) -> T +where + F: FnMut(String) -> T +{ + fn g<T, F>(s: String, mut f: F) -> T + where + F: FnMut(String) -> T + { + f(s) + } + + g(s, |v| { + let r = f(v); + r // This should be a move, not requiring copy + }) +} + +pub fn main() { + // Actually test the functionality + let result = apply(String::from("test"), |s| s.len()); + assert_eq!(result, 4); +} diff --git a/tests/ui/not-copy-closure.rs b/tests/ui/closures/closure-no-copy-mut-env.rs index f6530f9a410..890e99c1ac7 100644 --- a/tests/ui/not-copy-closure.rs +++ b/tests/ui/closures/closure-no-copy-mut-env.rs @@ -1,4 +1,4 @@ -// Check that closures do not implement `Copy` if their environment is not `Copy`. +//! Checks that closures do not implement `Copy` when they capture mutable references. fn main() { let mut a = 5; diff --git a/tests/ui/not-copy-closure.stderr b/tests/ui/closures/closure-no-copy-mut-env.stderr index 60cb1352313..1443366a477 100644 --- a/tests/ui/not-copy-closure.stderr +++ b/tests/ui/closures/closure-no-copy-mut-env.stderr @@ -1,5 +1,5 @@ error[E0382]: use of moved value: `hello` - --> $DIR/not-copy-closure.rs:10:13 + --> $DIR/closure-no-copy-mut-env.rs:10:13 | LL | let b = hello; | ----- value moved here @@ -7,7 +7,7 @@ LL | let c = hello; | ^^^^^ value used here after move | note: closure cannot be moved more than once as it is not `Copy` due to moving the variable `a` out of its environment - --> $DIR/not-copy-closure.rs:6:9 + --> $DIR/closure-no-copy-mut-env.rs:6:9 | LL | a += 1; | ^ diff --git a/tests/ui/closures/closure-upvar-last-use-analysis.rs b/tests/ui/closures/closure-upvar-last-use-analysis.rs new file mode 100644 index 00000000000..2c3e349437d --- /dev/null +++ b/tests/ui/closures/closure-upvar-last-use-analysis.rs @@ -0,0 +1,32 @@ +//! Regression test for issue #1399 +//! +//! This tests that the compiler's last-use analysis correctly handles variables +//! that are captured by closures (upvars). The original issue was that the analysis +//! would incorrectly optimize variable usage as "last use" and perform moves, even when +//! the variable was later needed by a closure that captured it. +//! +//! See: https://github.com/rust-lang/rust/issues/1399 + +//@ run-pass + +struct A { + _a: Box<isize>, +} + +fn foo() -> Box<dyn FnMut() -> isize + 'static> { + let k: Box<_> = Box::new(22); + + // This use of k.clone() should not be treated as a "last use" + // even though the closure below doesn't actually capture k + let _u = A { _a: k.clone() }; + + // The closure doesn't actually use k, but the analyzer needs to handle + // the potential capture scenario correctly + let result = || 22; + + Box::new(result) +} + +pub fn main() { + assert_eq!(foo()(), 22); +} diff --git a/tests/ui/once-cant-call-twice-on-heap.rs b/tests/ui/closures/fnonce-call-twice-error.rs index 3fd8c5cadca..1662b7bddaa 100644 --- a/tests/ui/once-cant-call-twice-on-heap.rs +++ b/tests/ui/closures/fnonce-call-twice-error.rs @@ -1,16 +1,15 @@ -// Testing guarantees provided by once functions. -// This program would segfault if it were legal. +//! Test that `FnOnce` closures cannot be called twice. use std::sync::Arc; -fn foo<F:FnOnce()>(blk: F) { +fn foo<F: FnOnce()>(blk: F) { blk(); blk(); //~ ERROR use of moved value } fn main() { let x = Arc::new(true); - foo(move|| { + foo(move || { assert!(*x); drop(x); }); diff --git a/tests/ui/once-cant-call-twice-on-heap.stderr b/tests/ui/closures/fnonce-call-twice-error.stderr index 42697374115..51d8a33dcd7 100644 --- a/tests/ui/once-cant-call-twice-on-heap.stderr +++ b/tests/ui/closures/fnonce-call-twice-error.stderr @@ -1,18 +1,18 @@ error[E0382]: use of moved value: `blk` - --> $DIR/once-cant-call-twice-on-heap.rs:8:5 + --> $DIR/fnonce-call-twice-error.rs:7:5 | -LL | fn foo<F:FnOnce()>(blk: F) { - | --- move occurs because `blk` has type `F`, which does not implement the `Copy` trait +LL | fn foo<F: FnOnce()>(blk: F) { + | --- move occurs because `blk` has type `F`, which does not implement the `Copy` trait LL | blk(); | ----- `blk` moved due to this call LL | blk(); | ^^^ value used here after move | note: `FnOnce` closures can only be called once - --> $DIR/once-cant-call-twice-on-heap.rs:6:10 + --> $DIR/fnonce-call-twice-error.rs:5:11 | -LL | fn foo<F:FnOnce()>(blk: F) { - | ^^^^^^^^ `F` is made to be an `FnOnce` closure here +LL | fn foo<F: FnOnce()>(blk: F) { + | ^^^^^^^^ `F` is made to be an `FnOnce` closure here LL | blk(); | ----- this value implements `FnOnce`, which causes it to be moved when called diff --git a/tests/ui/closures/many-closures.rs b/tests/ui/closures/many-closures.rs new file mode 100644 index 00000000000..c96ef5544c2 --- /dev/null +++ b/tests/ui/closures/many-closures.rs @@ -0,0 +1,47 @@ +//! Test that the compiler can handle code bases with a high number of closures. +//! This is particularly important for the MinGW toolchain which has a limit of +//! 2^15 weak symbols per binary. This test creates 2^12 closures (256 functions +//! with 16 closures each) to check the compiler handles this correctly. +//! +//! Regression test for <https://github.com/rust-lang/rust/issues/34793>. +//! See also <https://github.com/rust-lang/rust/pull/34830>. + +//@ run-pass + +// Make sure we don't optimize anything away: +//@ compile-flags: -C no-prepopulate-passes -Cpasses=name-anon-globals + +/// Macro for exponential expansion - creates 2^n copies of the given macro call +macro_rules! go_bacterial { + ($mac:ident) => ($mac!()); + ($mac:ident 1 $($t:tt)*) => ( + go_bacterial!($mac $($t)*); + go_bacterial!($mac $($t)*); + ) +} + +/// Creates and immediately calls a closure +macro_rules! create_closure { + () => { + (move || {})() + }; +} + +/// Creates a function containing 16 closures (2^4) +macro_rules! create_function_with_closures { + () => { + { + fn function_with_closures() { + // Create 16 closures using exponential expansion: 2^4 = 16 + go_bacterial!(create_closure 1 1 1 1); + } + let _ = function_with_closures(); + } + } +} + +fn main() { + // Create 2^8 = 256 functions, each containing 16 closures, + // resulting in 2^12 = 4096 closures total. + go_bacterial!(create_function_with_closures 1 1 1 1 1 1 1 1); +} diff --git a/tests/ui/coercion/basic-ptr-coercions.rs b/tests/ui/coercion/basic-ptr-coercions.rs new file mode 100644 index 00000000000..4229d1fb274 --- /dev/null +++ b/tests/ui/coercion/basic-ptr-coercions.rs @@ -0,0 +1,24 @@ +//! Tests basic pointer coercions + +//@ run-pass + +pub fn main() { + // &mut -> & + let x: &mut isize = &mut 42; + let _x: &isize = x; + let _x: &isize = &mut 42; + + // & -> *const + let x: &isize = &42; + let _x: *const isize = x; + let _x: *const isize = &42; + + // &mut -> *const + let x: &mut isize = &mut 42; + let _x: *const isize = x; + let _x: *const isize = &mut 42; + + // *mut -> *const + let _x: *mut isize = &mut 42; + let _x: *const isize = x; +} diff --git a/tests/ui/ptr-coercion.rs b/tests/ui/coercion/ptr-mutability-errors.rs index 2549bd6f134..391eaf0b913 100644 --- a/tests/ui/ptr-coercion.rs +++ b/tests/ui/coercion/ptr-mutability-errors.rs @@ -1,5 +1,4 @@ -// Test coercions between pointers which don't do anything fancy like unsizing. -// These are testing that we don't lose mutability when converting to raw pointers. +//! Tests that pointer coercions preserving mutability are enforced: //@ dont-require-annotations: NOTE diff --git a/tests/ui/ptr-coercion.stderr b/tests/ui/coercion/ptr-mutability-errors.stderr index 8de41d2c382..b4ded821c79 100644 --- a/tests/ui/ptr-coercion.stderr +++ b/tests/ui/coercion/ptr-mutability-errors.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/ptr-coercion.rs:9:25 + --> $DIR/ptr-mutability-errors.rs:8:25 | LL | let x: *mut isize = x; | ---------- ^ types differ in mutability @@ -10,7 +10,7 @@ LL | let x: *mut isize = x; found raw pointer `*const isize` error[E0308]: mismatched types - --> $DIR/ptr-coercion.rs:15:25 + --> $DIR/ptr-mutability-errors.rs:14:25 | LL | let x: *mut isize = &42; | ---------- ^^^ types differ in mutability @@ -21,7 +21,7 @@ LL | let x: *mut isize = &42; found reference `&isize` error[E0308]: mismatched types - --> $DIR/ptr-coercion.rs:21:25 + --> $DIR/ptr-mutability-errors.rs:20:25 | LL | let x: *mut isize = x; | ---------- ^ types differ in mutability diff --git a/tests/ui/coherence/occurs-check/associated-type.next.stderr b/tests/ui/coherence/occurs-check/associated-type.next.stderr index 25f9523f4e4..52794b19945 100644 --- a/tests/ui/coherence/occurs-check/associated-type.next.stderr +++ b/tests/ui/coherence/occurs-check/associated-type.next.stderr @@ -1,5 +1,5 @@ - WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [*const ?1t, '^0.Named(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), "'a")], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit), .. } - WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [*const ?1t, '^0.Named(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), "'a")], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit), .. } + WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [*const ?1t, '^0.Named(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1))], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit), .. } + WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [*const ?1t, '^0.Named(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1))], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit), .. } error[E0119]: conflicting implementations of trait `Overlap<for<'a> fn(&'a (), ())>` for type `for<'a> fn(&'a (), ())` --> $DIR/associated-type.rs:32:1 | diff --git a/tests/ui/coherence/occurs-check/associated-type.old.stderr b/tests/ui/coherence/occurs-check/associated-type.old.stderr index e091ddcacb2..9fa443eefb3 100644 --- a/tests/ui/coherence/occurs-check/associated-type.old.stderr +++ b/tests/ui/coherence/occurs-check/associated-type.old.stderr @@ -1,5 +1,5 @@ - WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [*const ?1t, '^0.Named(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), "'a")], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit), .. } - WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [*const ?1t, '^0.Named(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1), "'a")], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit), .. } + WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [*const ?1t, '^0.Named(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1))], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit), .. } + WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [*const ?1t, '^0.Named(DefId(0:27 ~ associated_type[f554]::{impl#3}::'a#1))], def_id: DefId(0:5 ~ associated_type[f554]::ToUnit::Unit), .. } error[E0119]: conflicting implementations of trait `Overlap<for<'a> fn(&'a (), ())>` for type `for<'a> fn(&'a (), ())` --> $DIR/associated-type.rs:32:1 | diff --git a/tests/ui/const-ptr/pointer-address-stability.rs b/tests/ui/const-ptr/pointer-address-stability.rs new file mode 100644 index 00000000000..84a36e1ddf5 --- /dev/null +++ b/tests/ui/const-ptr/pointer-address-stability.rs @@ -0,0 +1,11 @@ +//! Check that taking the address of a stack variable with `&` +//! yields a stable and comparable pointer. +//! +//! Regression test for <https://github.com/rust-lang/rust/issues/2040>. + +//@ run-pass + +pub fn main() { + let foo: isize = 1; + assert_eq!(&foo as *const isize, &foo as *const isize); +} diff --git a/tests/ui/auxiliary/issue-16822.rs b/tests/ui/cross-crate/auxiliary/cross-crate-refcell-match.rs index 9042dd39117..9042dd39117 100644 --- a/tests/ui/auxiliary/issue-16822.rs +++ b/tests/ui/cross-crate/auxiliary/cross-crate-refcell-match.rs diff --git a/tests/ui/auxiliary/kinds_in_metadata.rs b/tests/ui/cross-crate/auxiliary/kinds_in_metadata.rs index 2a2106ff70a..2a2106ff70a 100644 --- a/tests/ui/auxiliary/kinds_in_metadata.rs +++ b/tests/ui/cross-crate/auxiliary/kinds_in_metadata.rs diff --git a/tests/ui/cross-crate/cross-crate-refcell-match.rs b/tests/ui/cross-crate/cross-crate-refcell-match.rs new file mode 100644 index 00000000000..7e46425612f --- /dev/null +++ b/tests/ui/cross-crate/cross-crate-refcell-match.rs @@ -0,0 +1,36 @@ +//! Regression test for https://github.com/rust-lang/rust/issues/16822 +// +//! ICE when using RefCell::borrow_mut() +//! inside match statement with cross-crate generics. +//! +//! The bug occurred when: +//! - A library defines a generic struct with RefCell<T> and uses borrow_mut() in match +//! - Main crate implements the library trait for its own type +//! - Cross-crate generic constraint causes type inference issues +//! +//! The problematic match statement is in the auxiliary file, this file triggers it. + +//@ run-pass +//@ aux-build:cross-crate-refcell-match.rs + +extern crate cross_crate_refcell_match as lib; + +use std::cell::RefCell; + +struct App { + i: isize, +} + +impl lib::Update for App { + fn update(&mut self) { + self.i += 1; + } +} + +fn main() { + let app = App { i: 5 }; + let window = lib::Window { data: RefCell::new(app) }; + // This specific pattern (RefCell::borrow_mut in match with cross-crate generics) + // caused the ICE in the original issue + window.update(1); +} diff --git a/tests/ui/kinds-in-metadata.rs b/tests/ui/cross-crate/metadata-trait-serialization.rs index 58dffba861d..a6645018da4 100644 --- a/tests/ui/kinds-in-metadata.rs +++ b/tests/ui/cross-crate/metadata-trait-serialization.rs @@ -1,12 +1,11 @@ +//! Test that trait information (like Copy) is correctly serialized in crate metadata + //@ run-pass //@ aux-build:kinds_in_metadata.rs - /* Any copyright is dedicated to the Public Domain. * http://creativecommons.org/publicdomain/zero/1.0/ */ -// Tests that metadata serialization works for the `Copy` kind. - extern crate kinds_in_metadata; use kinds_in_metadata::f; diff --git a/tests/ui/darwin-ld64.rs b/tests/ui/darwin-ld64.rs new file mode 100644 index 00000000000..75acc07a002 --- /dev/null +++ b/tests/ui/darwin-ld64.rs @@ -0,0 +1,24 @@ +//@ compile-flags: -Copt-level=3 -Ccodegen-units=256 -Clink-arg=-ld_classic +//@ run-pass +//@ only-x86_64-apple-darwin + +// This is a regression test for https://github.com/rust-lang/rust/issues/140686. +// Although this is a ld64(ld-classic) bug, we still need to support it +// due to cross-compilation and support for older Xcode. + +fn main() { + let dst: Vec<u8> = Vec::new(); + let len = broken_func(std::hint::black_box(2), dst); + assert_eq!(len, 8); +} + +#[inline(never)] +pub fn broken_func(version: usize, mut dst: Vec<u8>) -> usize { + match version { + 1 => dst.extend_from_slice(b"aaaaaaaa"), + 2 => dst.extend_from_slice(b"bbbbbbbb"), + 3 => dst.extend_from_slice(b"bbbbbbbb"), + _ => panic!(), + } + dst.len() +} diff --git a/tests/ui/short-error-format.rs b/tests/ui/diagnostic-flags/error-format-short.rs index 719870a04fb..4c793cd1b18 100644 --- a/tests/ui/short-error-format.rs +++ b/tests/ui/diagnostic-flags/error-format-short.rs @@ -1,3 +1,6 @@ +//! Check that compile errors are formatted in the "short" style +//! when `--error-format=short` is used. + //@ compile-flags: --error-format=short fn foo(_: u32) {} diff --git a/tests/ui/diagnostic-flags/error-format-short.stderr b/tests/ui/diagnostic-flags/error-format-short.stderr new file mode 100644 index 00000000000..0a097e2f623 --- /dev/null +++ b/tests/ui/diagnostic-flags/error-format-short.stderr @@ -0,0 +1,3 @@ +$DIR/error-format-short.rs:9:9: error[E0308]: mismatched types: expected `u32`, found `String` +$DIR/error-format-short.rs:11:7: error[E0599]: no method named `salut` found for type `u32` in the current scope: method not found in `u32` +error: aborting due to 2 previous errors diff --git a/tests/ui/resource-assign-is-not-copy.rs b/tests/ui/drop/drop-once-on-move.rs index ab426016901..da018058076 100644 --- a/tests/ui/resource-assign-is-not-copy.rs +++ b/tests/ui/drop/drop-once-on-move.rs @@ -1,3 +1,7 @@ +//! Check that types not implementing `Copy` are moved, not copied, during assignment +//! operations, and their `Drop` implementation is called exactly once when the +//! value goes out of scope. + //@ run-pass #![allow(non_camel_case_types)] @@ -15,9 +19,7 @@ impl<'a> Drop for r<'a> { } fn r(i: &Cell<isize>) -> r<'_> { - r { - i: i - } + r { i } } pub fn main() { diff --git a/tests/ui/resource-destruct.rs b/tests/ui/drop/drop-scope-exit.rs index 480cbe091a7..4d003fec712 100644 --- a/tests/ui/resource-destruct.rs +++ b/tests/ui/drop/drop-scope-exit.rs @@ -1,31 +1,37 @@ +//! Check that the `Drop` implementation is called when a value goes out of scope. + //@ run-pass #![allow(non_camel_case_types)] use std::cell::Cell; struct shrinky_pointer<'a> { - i: &'a Cell<isize>, + i: &'a Cell<isize>, } impl<'a> Drop for shrinky_pointer<'a> { fn drop(&mut self) { - println!("Hello!"); self.i.set(self.i.get() - 1); + println!("Hello!"); + self.i.set(self.i.get() - 1); } } impl<'a> shrinky_pointer<'a> { - pub fn look_at(&self) -> isize { return self.i.get(); } + pub fn look_at(&self) -> isize { + return self.i.get(); + } } fn shrinky_pointer(i: &Cell<isize>) -> shrinky_pointer<'_> { - shrinky_pointer { - i: i - } + shrinky_pointer { i } } pub fn main() { let my_total = &Cell::new(10); - { let pt = shrinky_pointer(my_total); assert_eq!(pt.look_at(), 10); } + { + let pt = shrinky_pointer(my_total); + assert_eq!(pt.look_at(), 10); + } println!("my_total = {}", my_total.get()); assert_eq!(my_total.get(), 9); } diff --git a/tests/ui/empty/empty-attributes.stderr b/tests/ui/empty/empty-attributes.stderr index e86dea10c70..f0be56ddc6a 100644 --- a/tests/ui/empty/empty-attributes.stderr +++ b/tests/ui/empty/empty-attributes.stderr @@ -1,10 +1,10 @@ error: unused attribute - --> $DIR/empty-attributes.rs:9:1 + --> $DIR/empty-attributes.rs:2:1 | -LL | #[repr()] - | ^^^^^^^^^ help: remove this attribute +LL | #![allow()] + | ^^^^^^^^^^^ help: remove this attribute | - = note: attribute `repr` with an empty list has no effect + = note: attribute `allow` with an empty list has no effect note: the lint level is defined here --> $DIR/empty-attributes.rs:1:9 | @@ -12,22 +12,6 @@ LL | #![deny(unused_attributes)] | ^^^^^^^^^^^^^^^^^ error: unused attribute - --> $DIR/empty-attributes.rs:12:1 - | -LL | #[target_feature()] - | ^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | - = note: attribute `target_feature` with an empty list has no effect - -error: unused attribute - --> $DIR/empty-attributes.rs:2:1 - | -LL | #![allow()] - | ^^^^^^^^^^^ help: remove this attribute - | - = note: attribute `allow` with an empty list has no effect - -error: unused attribute --> $DIR/empty-attributes.rs:3:1 | LL | #![expect()] @@ -67,5 +51,17 @@ LL | #![feature()] | = note: attribute `feature` with an empty list has no effect +error: unused attribute + --> $DIR/empty-attributes.rs:9:1 + | +LL | #[repr()] + | ^^^^^^^^^ help: remove this attribute + +error: unused attribute + --> $DIR/empty-attributes.rs:12:1 + | +LL | #[target_feature()] + | ^^^^^^^^^^^^^^^^^^^ help: remove this attribute + error: aborting due to 8 previous errors diff --git a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr index 9280dfdf92e..5d7d1caeeab 100644 --- a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr +++ b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr @@ -367,12 +367,6 @@ warning: `#[should_panic]` only has an effect on functions LL | #![should_panic] | ^^^^^^^^^^^^^^^^ -warning: `#[ignore]` only has an effect on functions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:54:1 - | -LL | #![ignore] - | ^^^^^^^^^^ - warning: `#[proc_macro_derive]` only has an effect on functions --> $DIR/issue-43106-gating-of-builtin-attrs.rs:60:1 | @@ -387,6 +381,12 @@ LL | #![link()] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! +warning: `#[ignore]` only has an effect on functions + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:54:1 + | +LL | #![ignore] + | ^^^^^^^^^^ + warning: attribute should be applied to a foreign function or static --> $DIR/issue-43106-gating-of-builtin-attrs.rs:66:1 | diff --git a/tests/ui/auxiliary/delegate_macro.rs b/tests/ui/fn/auxiliary/delegate_macro.rs index 0d752e12039..0d752e12039 100644 --- a/tests/ui/auxiliary/delegate_macro.rs +++ b/tests/ui/fn/auxiliary/delegate_macro.rs diff --git a/tests/ui/not-enough-arguments.rs b/tests/ui/fn/fn-arg-count-mismatch-diagnostics.rs index ec660a1de81..b2f80ba1bf6 100644 --- a/tests/ui/not-enough-arguments.rs +++ b/tests/ui/fn/fn-arg-count-mismatch-diagnostics.rs @@ -1,15 +1,15 @@ +//! Checks clean diagnostics for argument count mismatches without unrelated errors. +//! +//! `delegate!` part related: <https://github.com/rust-lang/rust/pull/140591> + //@ aux-build: delegate_macro.rs extern crate delegate_macro; use delegate_macro::delegate; -// Check that the only error msg we report is the -// mismatch between the # of params, and not other -// unrelated errors. fn foo(a: isize, b: isize, c: isize, d: isize) { panic!(); } -// Check that all arguments are shown in the error message, even if they're across multiple lines. fn bar(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32) { println!("{}", a); println!("{}", b); @@ -37,6 +37,7 @@ struct Bar; impl Bar { fn foo(a: u8, b: u8) {} + fn bar() { delegate_local!(foo); delegate!(foo); diff --git a/tests/ui/not-enough-arguments.stderr b/tests/ui/fn/fn-arg-count-mismatch-diagnostics.stderr index 908d0273bbe..6af7671af03 100644 --- a/tests/ui/not-enough-arguments.stderr +++ b/tests/ui/fn/fn-arg-count-mismatch-diagnostics.stderr @@ -1,5 +1,5 @@ error[E0061]: this function takes 2 arguments but 1 argument was supplied - --> $DIR/not-enough-arguments.rs:24:9 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:24:9 | LL | <Self>::$method(8) | ^^^^^^^^^^^^^^^--- argument #2 of type `u8` is missing @@ -8,7 +8,7 @@ LL | delegate_local!(foo); | -------------------- in this macro invocation | note: associated function defined here - --> $DIR/not-enough-arguments.rs:39:8 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:39:8 | LL | fn foo(a: u8, b: u8) {} | ^^^ ----- @@ -19,20 +19,20 @@ LL | <Self>::$method(8, /* u8 */) | ++++++++++ error[E0061]: this function takes 2 arguments but 1 argument was supplied - --> $DIR/not-enough-arguments.rs:42:9 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:43:9 | LL | delegate!(foo); | ^^^^^^^^^^^^^^ argument #2 of type `u8` is missing | note: associated function defined here - --> $DIR/not-enough-arguments.rs:39:8 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:39:8 | LL | fn foo(a: u8, b: u8) {} | ^^^ ----- = note: this error originates in the macro `delegate` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0061]: this function takes 2 arguments but 1 argument was supplied - --> $DIR/not-enough-arguments.rs:31:9 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:31:9 | LL | <$from>::$method(8) | ^^^^^^^^^^^^^^^^--- argument #2 of type `u8` is missing @@ -41,7 +41,7 @@ LL | delegate_from!(Bar, foo); | ------------------------ in this macro invocation | note: associated function defined here - --> $DIR/not-enough-arguments.rs:39:8 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:39:8 | LL | fn foo(a: u8, b: u8) {} | ^^^ ----- @@ -52,13 +52,13 @@ LL | <$from>::$method(8, /* u8 */) | ++++++++++ error[E0061]: this function takes 4 arguments but 3 arguments were supplied - --> $DIR/not-enough-arguments.rs:49:5 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:50:5 | LL | foo(1, 2, 3); | ^^^--------- argument #4 of type `isize` is missing | note: function defined here - --> $DIR/not-enough-arguments.rs:8:4 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:9:4 | LL | fn foo(a: isize, b: isize, c: isize, d: isize) { | ^^^ -------- @@ -68,13 +68,13 @@ LL | foo(1, 2, 3, /* isize */); | +++++++++++++ error[E0061]: this function takes 6 arguments but 3 arguments were supplied - --> $DIR/not-enough-arguments.rs:51:5 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:52:5 | LL | bar(1, 2, 3); | ^^^--------- three arguments of type `i32`, `i32`, and `i32` are missing | note: function defined here - --> $DIR/not-enough-arguments.rs:13:4 + --> $DIR/fn-arg-count-mismatch-diagnostics.rs:13:4 | LL | fn bar(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32) { | ^^^ ------ ------ ------ diff --git a/tests/ui/fn/mutable-function-parameters.rs b/tests/ui/fn/mutable-function-parameters.rs new file mode 100644 index 00000000000..5045a783f04 --- /dev/null +++ b/tests/ui/fn/mutable-function-parameters.rs @@ -0,0 +1,24 @@ +//! Test that function and closure parameters marked as `mut` can be mutated +//! within the function body. + +//@ run-pass + +fn f(mut y: Box<isize>) { + *y = 5; + assert_eq!(*y, 5); +} + +fn g() { + let frob = |mut q: Box<isize>| { + *q = 2; + assert_eq!(*q, 2); + }; + let w = Box::new(37); + frob(w); +} + +pub fn main() { + let z = Box::new(17); + f(z); + g(); +} diff --git a/tests/ui/generics/generic-params-nested-fn-scope-error.rs b/tests/ui/generics/generic-params-nested-fn-scope-error.rs new file mode 100644 index 00000000000..eaf514da337 --- /dev/null +++ b/tests/ui/generics/generic-params-nested-fn-scope-error.rs @@ -0,0 +1,14 @@ +//! Test that generic parameters from an outer function are not accessible +//! in nested functions. + +fn foo<U>(v: Vec<U>) -> U { + fn bar(w: [U]) -> U { + //~^ ERROR can't use generic parameters from outer item + //~| ERROR can't use generic parameters from outer item + return w[0]; + } + + return bar(v); +} + +fn main() {} diff --git a/tests/ui/nested-ty-params.stderr b/tests/ui/generics/generic-params-nested-fn-scope-error.stderr index 7ca65b421b2..7fd1069c651 100644 --- a/tests/ui/nested-ty-params.stderr +++ b/tests/ui/generics/generic-params-nested-fn-scope-error.stderr @@ -1,19 +1,19 @@ error[E0401]: can't use generic parameters from outer item - --> $DIR/nested-ty-params.rs:2:16 + --> $DIR/generic-params-nested-fn-scope-error.rs:5:16 | -LL | fn hd<U>(v: Vec<U> ) -> U { - | - type parameter from outer item -LL | fn hd1(w: [U]) -> U { return w[0]; } +LL | fn foo<U>(v: Vec<U>) -> U { + | - type parameter from outer item +LL | fn bar(w: [U]) -> U { | - ^ use of generic parameter from outer item | | | help: try introducing a local generic parameter here: `<U>` error[E0401]: can't use generic parameters from outer item - --> $DIR/nested-ty-params.rs:2:23 + --> $DIR/generic-params-nested-fn-scope-error.rs:5:23 | -LL | fn hd<U>(v: Vec<U> ) -> U { - | - type parameter from outer item -LL | fn hd1(w: [U]) -> U { return w[0]; } +LL | fn foo<U>(v: Vec<U>) -> U { + | - type parameter from outer item +LL | fn bar(w: [U]) -> U { | - ^ use of generic parameter from outer item | | | help: try introducing a local generic parameter here: `<U>` diff --git a/tests/ui/seq-args.rs b/tests/ui/generics/trait-incorrect-generic-args.rs index 627dfcc3198..9715100b19c 100644 --- a/tests/ui/seq-args.rs +++ b/tests/ui/generics/trait-incorrect-generic-args.rs @@ -1,5 +1,7 @@ +//! Check for compilation errors when a trait is used with an incorrect number of generic arguments. + fn main() { - trait Seq { } + trait Seq {} impl<T> Seq<T> for Vec<T> { //~^ ERROR trait takes 0 generic arguments but 1 generic argument diff --git a/tests/ui/seq-args.stderr b/tests/ui/generics/trait-incorrect-generic-args.stderr index 6e0d484d013..afc4ff03d94 100644 --- a/tests/ui/seq-args.stderr +++ b/tests/ui/generics/trait-incorrect-generic-args.stderr @@ -1,5 +1,5 @@ error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied - --> $DIR/seq-args.rs:4:13 + --> $DIR/trait-incorrect-generic-args.rs:6:13 | LL | impl<T> Seq<T> for Vec<T> { | ^^^--- help: remove the unnecessary generics @@ -7,13 +7,13 @@ LL | impl<T> Seq<T> for Vec<T> { | expected 0 generic arguments | note: trait defined here, with 0 generic parameters - --> $DIR/seq-args.rs:2:11 + --> $DIR/trait-incorrect-generic-args.rs:4:11 | -LL | trait Seq { } +LL | trait Seq {} | ^^^ error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied - --> $DIR/seq-args.rs:9:10 + --> $DIR/trait-incorrect-generic-args.rs:11:10 | LL | impl Seq<bool> for u32 { | ^^^------ help: remove the unnecessary generics @@ -21,9 +21,9 @@ LL | impl Seq<bool> for u32 { | expected 0 generic arguments | note: trait defined here, with 0 generic parameters - --> $DIR/seq-args.rs:2:11 + --> $DIR/trait-incorrect-generic-args.rs:4:11 | -LL | trait Seq { } +LL | trait Seq {} | ^^^ error: aborting due to 2 previous errors diff --git a/tests/ui/issue-15924.rs b/tests/ui/higher-ranked/higher-ranked-encoding.rs index eb2aef9cee1..463e0f50e53 100644 --- a/tests/ui/issue-15924.rs +++ b/tests/ui/higher-ranked/higher-ranked-encoding.rs @@ -1,9 +1,7 @@ -//@ run-pass +//! Regression test for https://github.com/rust-lang/rust/issues/15924 -#![allow(unused_imports)] -#![allow(unused_must_use)] +//@ run-pass -use std::fmt; use std::marker::PhantomData; trait Encoder { @@ -26,9 +24,8 @@ impl Encoder for JsonEncoder<'_> { type Error = (); } -fn encode_json<T: for<'r> Encodable<JsonEncoder<'r>>>( - object: &T, -) -> Result<String, ()> { +// This function uses higher-ranked trait bounds, which previously caused ICE +fn encode_json<T: for<'r> Encodable<JsonEncoder<'r>>>(object: &T) -> Result<String, ()> { let s = String::new(); { let mut encoder = JsonEncoder(PhantomData); @@ -37,13 +34,15 @@ fn encode_json<T: for<'r> Encodable<JsonEncoder<'r>>>( Ok(s) } +// Structure with HRTB constraint that was problematic struct Foo<T: for<'a> Encodable<JsonEncoder<'a>>> { v: T, } +// Drop implementation that exercises the HRTB bounds impl<T: for<'a> Encodable<JsonEncoder<'a>>> Drop for Foo<T> { fn drop(&mut self) { - encode_json(&self.v); + let _ = encode_json(&self.v); } } diff --git a/tests/ui/higher-ranked/structually-relate-aliases.stderr b/tests/ui/higher-ranked/structually-relate-aliases.stderr index 025fcc5e170..b27a2dcceb1 100644 --- a/tests/ui/higher-ranked/structually-relate-aliases.stderr +++ b/tests/ui/higher-ranked/structually-relate-aliases.stderr @@ -1,4 +1,4 @@ - WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [?1t, '^0.Named(DefId(0:15 ~ structually_relate_aliases[de75]::{impl#1}::'a), "'a")], def_id: DefId(0:5 ~ structually_relate_aliases[de75]::ToUnit::Unit), .. } + WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: [?1t, '^0.Named(DefId(0:15 ~ structually_relate_aliases[de75]::{impl#1}::'a))], def_id: DefId(0:5 ~ structually_relate_aliases[de75]::ToUnit::Unit), .. } error[E0277]: the trait bound `for<'a> T: ToUnit<'a>` is not satisfied --> $DIR/structually-relate-aliases.rs:13:36 | diff --git a/tests/ui/impl-trait/in-trait/rpitit-duplicate-associated-fn.rs b/tests/ui/impl-trait/in-trait/rpitit-duplicate-associated-fn.rs new file mode 100644 index 00000000000..4fddd7c4ac8 --- /dev/null +++ b/tests/ui/impl-trait/in-trait/rpitit-duplicate-associated-fn.rs @@ -0,0 +1,30 @@ +// issue#140796 + +trait Bar { + fn method() -> impl Sized; + fn method() -> impl Sized; //~ ERROR: the name `method` is defined multiple times +} + +impl Bar for () { //~ ERROR: not all trait items implemented, missing: `method` + fn method() -> impl Sized { + 42 + } + fn method() -> impl Sized { //~ ERROR: duplicate definitions with name `method` + 42 + } +} + +trait T { + fn method() -> impl Sized; +} + +impl T for () { + fn method() -> impl Sized { + 42 + } + fn method() -> impl Sized { //~ ERROR: duplicate definitions with name `method` + 42 + } +} + +fn main() {} diff --git a/tests/ui/impl-trait/in-trait/rpitit-duplicate-associated-fn.stderr b/tests/ui/impl-trait/in-trait/rpitit-duplicate-associated-fn.stderr new file mode 100644 index 00000000000..b58e8136479 --- /dev/null +++ b/tests/ui/impl-trait/in-trait/rpitit-duplicate-associated-fn.stderr @@ -0,0 +1,53 @@ +error[E0428]: the name `method` is defined multiple times + --> $DIR/rpitit-duplicate-associated-fn.rs:5:5 + | +LL | fn method() -> impl Sized; + | -------------------------- previous definition of the value `method` here +LL | fn method() -> impl Sized; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ `method` redefined here + | + = note: `method` must be defined only once in the value namespace of this trait + +error[E0201]: duplicate definitions with name `method`: + --> $DIR/rpitit-duplicate-associated-fn.rs:12:5 + | +LL | fn method() -> impl Sized; + | -------------------------- item in trait +... +LL | / fn method() -> impl Sized { +LL | | 42 +LL | | } + | |_____- previous definition here +LL | / fn method() -> impl Sized { +LL | | 42 +LL | | } + | |_____^ duplicate definition + +error[E0201]: duplicate definitions with name `method`: + --> $DIR/rpitit-duplicate-associated-fn.rs:25:5 + | +LL | fn method() -> impl Sized; + | -------------------------- item in trait +... +LL | / fn method() -> impl Sized { +LL | | 42 +LL | | } + | |_____- previous definition here +LL | / fn method() -> impl Sized { +LL | | 42 +LL | | } + | |_____^ duplicate definition + +error[E0046]: not all trait items implemented, missing: `method` + --> $DIR/rpitit-duplicate-associated-fn.rs:8:1 + | +LL | fn method() -> impl Sized; + | -------------------------- `method` from trait +... +LL | impl Bar for () { + | ^^^^^^^^^^^^^^^ missing `method` in implementation + +error: aborting due to 4 previous errors + +Some errors have detailed explanations: E0046, E0201, E0428. +For more information about an error, try `rustc --explain E0046`. diff --git a/tests/ui/stdio-is-blocking.rs b/tests/ui/io-checks/io-stdout-blocking-writes.rs index 615530dcd47..1197b7f43be 100644 --- a/tests/ui/stdio-is-blocking.rs +++ b/tests/ui/io-checks/io-stdout-blocking-writes.rs @@ -1,10 +1,12 @@ +//! Check that writes to standard output are blocking, avoiding interleaving +//! even with concurrent writes from multiple threads. + //@ run-pass //@ needs-subprocess -use std::env; use std::io::prelude::*; use std::process::Command; -use std::thread; +use std::{env, thread}; const THREADS: usize = 20; const WRITES: usize = 100; @@ -33,14 +35,16 @@ fn parent() { } fn child() { - let threads = (0..THREADS).map(|_| { - thread::spawn(|| { - let buf = [b'a'; WRITE_SIZE]; - for _ in 0..WRITES { - write_all(&buf); - } + let threads = (0..THREADS) + .map(|_| { + thread::spawn(|| { + let buf = [b'a'; WRITE_SIZE]; + for _ in 0..WRITES { + write_all(&buf); + } + }) }) - }).collect::<Vec<_>>(); + .collect::<Vec<_>>(); for thread in threads { thread.join().unwrap(); @@ -63,8 +67,8 @@ fn write_all(buf: &[u8]) { fn write_all(buf: &[u8]) { use std::fs::File; use std::mem; - use std::os::windows::raw::*; use std::os::windows::prelude::*; + use std::os::windows::raw::*; const STD_OUTPUT_HANDLE: u32 = (-11i32) as u32; diff --git a/tests/ui/print-stdout-eprint-stderr.rs b/tests/ui/io-checks/stdout-stderr-separation.rs index 4b356e2fe61..1bb3f16d3a1 100644 --- a/tests/ui/print-stdout-eprint-stderr.rs +++ b/tests/ui/io-checks/stdout-stderr-separation.rs @@ -1,3 +1,6 @@ +//! Test that print!/println! output to stdout and eprint!/eprintln! +//! output to stderr correctly. + //@ run-pass //@ needs-subprocess diff --git a/tests/ui/issue-16822.rs b/tests/ui/issue-16822.rs deleted file mode 100644 index 94d89f88f47..00000000000 --- a/tests/ui/issue-16822.rs +++ /dev/null @@ -1,22 +0,0 @@ -//@ run-pass -//@ aux-build:issue-16822.rs - -extern crate issue_16822 as lib; - -use std::cell::RefCell; - -struct App { - i: isize -} - -impl lib::Update for App { - fn update(&mut self) { - self.i += 1; - } -} - -fn main(){ - let app = App { i: 5 }; - let window = lib::Window { data: RefCell::new(app) }; - window.update(1); -} diff --git a/tests/ui/item-name-overload.rs b/tests/ui/item-name-overload.rs deleted file mode 100644 index dd2925aa53f..00000000000 --- a/tests/ui/item-name-overload.rs +++ /dev/null @@ -1,16 +0,0 @@ -//@ run-pass - -#![allow(dead_code)] - - - - -mod foo { - pub fn baz() { } -} - -mod bar { - pub fn baz() { } -} - -pub fn main() { } diff --git a/tests/ui/kinds-of-primitive-impl.rs b/tests/ui/kinds-of-primitive-impl.rs deleted file mode 100644 index f1c2ee8e550..00000000000 --- a/tests/ui/kinds-of-primitive-impl.rs +++ /dev/null @@ -1,26 +0,0 @@ -impl u8 { -//~^ error: cannot define inherent `impl` for primitive types - pub const B: u8 = 0; -} - -impl str { -//~^ error: cannot define inherent `impl` for primitive types - fn foo() {} - fn bar(self) {} //~ ERROR: size for values of type `str` cannot be known -} - -impl char { -//~^ error: cannot define inherent `impl` for primitive types - pub const B: u8 = 0; - pub const C: u8 = 0; - fn foo() {} - fn bar(self) {} -} - -struct MyType; -impl &MyType { -//~^ error: cannot define inherent `impl` for primitive types - pub fn for_ref(self) {} -} - -fn main() {} diff --git a/tests/ui/last-use-in-block.rs b/tests/ui/last-use-in-block.rs deleted file mode 100644 index 4a166b97bda..00000000000 --- a/tests/ui/last-use-in-block.rs +++ /dev/null @@ -1,21 +0,0 @@ -//@ run-pass - -#![allow(dead_code)] -#![allow(unused_parens)] -// Issue #1818 - - -fn lp<T, F>(s: String, mut f: F) -> T where F: FnMut(String) -> T { - while false { - let r = f(s); - return (r); - } - panic!(); -} - -fn apply<T, F>(s: String, mut f: F) -> T where F: FnMut(String) -> T { - fn g<T, F>(s: String, mut f: F) -> T where F: FnMut(String) -> T {f(s)} - g(s, |v| { let r = f(v); r }) -} - -pub fn main() {} diff --git a/tests/ui/last-use-in-cap-clause.rs b/tests/ui/last-use-in-cap-clause.rs deleted file mode 100644 index 23c263c9805..00000000000 --- a/tests/ui/last-use-in-cap-clause.rs +++ /dev/null @@ -1,17 +0,0 @@ -//@ run-pass - -#![allow(dead_code)] -// Make sure #1399 stays fixed - -struct A { a: Box<isize> } - -fn foo() -> Box<dyn FnMut() -> isize + 'static> { - let k: Box<_> = Box::new(22); - let _u = A {a: k.clone()}; - let result = || 22; - Box::new(result) -} - -pub fn main() { - assert_eq!(foo()(), 22); -} diff --git a/tests/ui/last-use-is-capture.rs b/tests/ui/last-use-is-capture.rs deleted file mode 100644 index 6e07895f1d3..00000000000 --- a/tests/ui/last-use-is-capture.rs +++ /dev/null @@ -1,13 +0,0 @@ -//@ run-pass - -#![allow(dead_code)] -// Make sure #1399 stays fixed - -struct A { a: Box<isize> } - -pub fn main() { - fn invoke<F>(f: F) where F: FnOnce() { f(); } - let k: Box<_> = 22.into(); - let _u = A {a: k.clone()}; - invoke(|| println!("{}", k.clone()) ) -} diff --git a/tests/ui/nullable-pointer-size.rs b/tests/ui/layout/null-pointer-optimization-sizes.rs index aabdfa140df..95310b32e25 100644 --- a/tests/ui/nullable-pointer-size.rs +++ b/tests/ui/layout/null-pointer-optimization-sizes.rs @@ -1,10 +1,20 @@ +//! null pointer optimization preserves type sizes. +//! +//! Verifies that Option<T> has the same size as T for non-null pointer types, +//! and for custom enums that have a niche. + //@ run-pass +// Needs for Nothing variat in Enum #![allow(dead_code)] use std::mem; -enum E<T> { Thing(isize, T), Nothing((), ((), ()), [i8; 0]) } +enum E<T> { + Thing(isize, T), + Nothing((), ((), ()), [i8; 0]), +} + struct S<T>(isize, T); // These are macros so we get useful assert messages. @@ -12,20 +22,20 @@ struct S<T>(isize, T); macro_rules! check_option { ($T:ty) => { assert_eq!(mem::size_of::<Option<$T>>(), mem::size_of::<$T>()); - } + }; } macro_rules! check_fancy { ($T:ty) => { assert_eq!(mem::size_of::<E<$T>>(), mem::size_of::<S<$T>>()); - } + }; } macro_rules! check_type { ($T:ty) => {{ check_option!($T); check_fancy!($T); - }} + }}; } pub fn main() { diff --git a/tests/ui/nullable-pointer-iotareduction.rs b/tests/ui/layout/null-pointer-optimization.rs index 1b73164c9fc..5e77c8d22ab 100644 --- a/tests/ui/nullable-pointer-iotareduction.rs +++ b/tests/ui/layout/null-pointer-optimization.rs @@ -1,27 +1,34 @@ -//@ run-pass +//! null pointer optimization with iota-reduction for enums. +//! +//! Iota-reduction is a rule from the Calculus of (Co-)Inductive Constructions: +//! "a destructor applied to an object built from a constructor behaves as expected". +//! See <https://coq.inria.fr/doc/language/core/conversion.html#iota-reduction>. +//! +//! This test verifies that null pointer optimization works correctly for both +//! Option<T> and custom enums, accounting for pointers and regions. -// Iota-reduction is a rule in the Calculus of (Co-)Inductive Constructions, -// which "says that a destructor applied to an object built from a constructor -// behaves as expected". -- https://coq.inria.fr/doc/language/core/conversion.html#iota-reduction -// -// It's a little more complicated here, because of pointers and regions and -// trying to get assert failure messages that at least identify which case -// failed. +//@ run-pass #![allow(unpredictable_function_pointer_comparisons)] -enum E<T> { Thing(isize, T), #[allow(dead_code)] Nothing((), ((), ()), [i8; 0]) } +enum E<T> { + Thing(isize, T), + #[allow(dead_code)] + Nothing((), ((), ()), [i8; 0]), +} + impl<T> E<T> { fn is_none(&self) -> bool { match *self { E::Thing(..) => false, - E::Nothing(..) => true + E::Nothing(..) => true, } } + fn get_ref(&self) -> (isize, &T) { match *self { - E::Nothing(..) => panic!("E::get_ref(Nothing::<{}>)", stringify!(T)), - E::Thing(x, ref y) => (x, y) + E::Nothing(..) => panic!("E::get_ref(Nothing::<{}>)", stringify!(T)), + E::Thing(x, ref y) => (x, y), } } } @@ -36,7 +43,7 @@ macro_rules! check_option { let s_ = Some::<$T>(e); let $v = s_.as_ref().unwrap(); $chk - }} + }}; } macro_rules! check_fancy { @@ -48,11 +55,10 @@ macro_rules! check_fancy { let e = $e; let t_ = E::Thing::<$T>(23, e); match t_.get_ref() { - (23, $v) => { $chk } - _ => panic!("Thing::<{}>(23, {}).get_ref() != (23, _)", - stringify!($T), stringify!($e)) + (23, $v) => $chk, + _ => panic!("Thing::<{}>(23, {}).get_ref() != (23, _)", stringify!($T), stringify!($e)), } - }} + }}; } macro_rules! check_type { @@ -67,7 +73,5 @@ pub fn main() { check_type!(Box::new(18), Box<isize>); check_type!("foo".to_string(), String); check_type!(vec![20, 22], Vec<isize>); - check_type!(main, fn(), |pthing| { - assert_eq!(main as fn(), *pthing as fn()) - }); + check_type!(main, fn(), |pthing| assert_eq!(main as fn(), *pthing as fn())); } diff --git a/tests/ui/lint/lint_map_unit_fn.stderr b/tests/ui/lint/lint_map_unit_fn.stderr index 91542af0f6d..930ecd30d1d 100644 --- a/tests/ui/lint/lint_map_unit_fn.stderr +++ b/tests/ui/lint/lint_map_unit_fn.stderr @@ -25,19 +25,18 @@ LL + x.iter_mut().for_each(foo); error: `Iterator::map` call that discard the iterator's values --> $DIR/lint_map_unit_fn.rs:11:18 | -LL | x.iter_mut().map(|items| { - | ^ ------- - | | | - | ____________________|___this function returns `()`, which is likely not what you wanted - | | __________________| - | | | -LL | | | -LL | | | items.sort(); -LL | | | }); - | | | -^ after this call to map, the resulting iterator is `impl Iterator<Item = ()>`, which means the only information carried by the iterator is the number of items - | | |_____|| - | |_______| - | called `Iterator::map` with callable that returns `()` +LL | x.iter_mut().map(|items| { + | ^ ------- + | | | + | ___________________|___this function returns `()`, which is likely not what you wanted + | | __________________| + | || +LL | || +LL | || items.sort(); +LL | || }); + | ||_____-^ after this call to map, the resulting iterator is `impl Iterator<Item = ()>`, which means the only information carried by the iterator is the number of items + | |______| + | called `Iterator::map` with callable that returns `()` | = note: `Iterator::map`, like many of the methods on `Iterator`, gets executed lazily, meaning that its effects won't be visible until it is iterated help: you might have meant to use `Iterator::for_each` diff --git a/tests/ui/lint/unused/unused-attr-duplicate.stderr b/tests/ui/lint/unused/unused-attr-duplicate.stderr index eff478d04ae..275eb056305 100644 --- a/tests/ui/lint/unused/unused-attr-duplicate.stderr +++ b/tests/ui/lint/unused/unused-attr-duplicate.stderr @@ -41,18 +41,6 @@ LL | #[path = "auxiliary/lint_unused_extern_crate.rs"] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:53:1 - | -LL | #[ignore = "some text"] - | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:52:1 - | -LL | #[ignore] - | ^^^^^^^^^ - -error: unused attribute --> $DIR/unused-attr-duplicate.rs:55:1 | LL | #[should_panic(expected = "values don't match")] @@ -166,6 +154,18 @@ LL | #[macro_export] | ^^^^^^^^^^^^^^^ error: unused attribute + --> $DIR/unused-attr-duplicate.rs:53:1 + | +LL | #[ignore = "some text"] + | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute + | +note: attribute also specified here + --> $DIR/unused-attr-duplicate.rs:52:1 + | +LL | #[ignore] + | ^^^^^^^^^ + +error: unused attribute --> $DIR/unused-attr-duplicate.rs:60:1 | LL | #[must_use = "some message"] diff --git a/tests/ui/malformed/malformed-regressions.stderr b/tests/ui/malformed/malformed-regressions.stderr index 535db55a13d..8c22919a1c2 100644 --- a/tests/ui/malformed/malformed-regressions.stderr +++ b/tests/ui/malformed/malformed-regressions.stderr @@ -8,15 +8,6 @@ LL | #[doc] = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: `#[deny(ill_formed_attribute_input)]` on by default -error: valid forms for the attribute are `#[ignore]` and `#[ignore = "reason"]` - --> $DIR/malformed-regressions.rs:3:1 - | -LL | #[ignore()] - | ^^^^^^^^^^^ - | - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - error: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...", /*opt*/ import_name_type = "decorated|noprefix|undecorated")]` --> $DIR/malformed-regressions.rs:7:1 | @@ -35,6 +26,15 @@ LL | #[link = ""] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> +error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]` + --> $DIR/malformed-regressions.rs:3:1 + | +LL | #[ignore()] + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> + error: valid forms for the attribute are `#[inline(always|never)]` and `#[inline]` --> $DIR/malformed-regressions.rs:5:1 | diff --git a/tests/ui/mismatched_types/closure-parameter-type-inference-mismatch.rs b/tests/ui/mismatched_types/closure-parameter-type-inference-mismatch.rs new file mode 100644 index 00000000000..1cd41114bbd --- /dev/null +++ b/tests/ui/mismatched_types/closure-parameter-type-inference-mismatch.rs @@ -0,0 +1,25 @@ +//! Test closure parameter type inference and type mismatch errors. +//! +//! Related to <https://github.com/rust-lang/rust/issues/2093>. + +//@ dont-require-annotations: NOTE + +fn let_in<T, F>(x: T, f: F) +where + F: FnOnce(T), +{ +} + +fn main() { + let_in(3u32, |i| { + assert!(i == 3i32); + //~^ ERROR mismatched types + //~| NOTE expected `u32`, found `i32` + }); + + let_in(3i32, |i| { + assert!(i == 3u32); + //~^ ERROR mismatched types + //~| NOTE expected `i32`, found `u32` + }); +} diff --git a/tests/ui/mismatched_types/closure-parameter-type-inference-mismatch.stderr b/tests/ui/mismatched_types/closure-parameter-type-inference-mismatch.stderr new file mode 100644 index 00000000000..c75e90ce4ef --- /dev/null +++ b/tests/ui/mismatched_types/closure-parameter-type-inference-mismatch.stderr @@ -0,0 +1,31 @@ +error[E0308]: mismatched types + --> $DIR/closure-parameter-type-inference-mismatch.rs:15:22 + | +LL | assert!(i == 3i32); + | - ^^^^ expected `u32`, found `i32` + | | + | expected because this is `u32` + | +help: change the type of the numeric literal from `i32` to `u32` + | +LL - assert!(i == 3i32); +LL + assert!(i == 3u32); + | + +error[E0308]: mismatched types + --> $DIR/closure-parameter-type-inference-mismatch.rs:21:22 + | +LL | assert!(i == 3u32); + | - ^^^^ expected `i32`, found `u32` + | | + | expected because this is `i32` + | +help: change the type of the numeric literal from `u32` to `i32` + | +LL - assert!(i == 3u32); +LL + assert!(i == 3i32); + | + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/point-to-type-err-cause-on-impl-trait-return-2.rs b/tests/ui/mismatched_types/type-error-diagnostic-in-complex-return.rs index 50f1fe873cb..6711d303eb3 100644 --- a/tests/ui/point-to-type-err-cause-on-impl-trait-return-2.rs +++ b/tests/ui/mismatched_types/type-error-diagnostic-in-complex-return.rs @@ -1,4 +1,8 @@ -fn unrelated() -> Result<(), std::string::ParseError> { // #57664 +//! Regression test for <https://github.com/rust-lang/rust/issues/57664>. +//! Checks that compiler doesn't get confused by `?` operator and complex +//! return types when reporting type mismatches. + +fn unrelated() -> Result<(), std::string::ParseError> { let x = 0; match x { diff --git a/tests/ui/point-to-type-err-cause-on-impl-trait-return-2.stderr b/tests/ui/mismatched_types/type-error-diagnostic-in-complex-return.stderr index 34aaea5b70b..38392fe99d6 100644 --- a/tests/ui/point-to-type-err-cause-on-impl-trait-return-2.stderr +++ b/tests/ui/mismatched_types/type-error-diagnostic-in-complex-return.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/point-to-type-err-cause-on-impl-trait-return-2.rs:9:41 + --> $DIR/type-error-diagnostic-in-complex-return.rs:13:41 | LL | let value: &bool = unsafe { &42 }; | ^^^ expected `&bool`, found `&{integer}` diff --git a/tests/ui/modules/mod-same-item-names.rs b/tests/ui/modules/mod-same-item-names.rs new file mode 100644 index 00000000000..1e9a9caa5fc --- /dev/null +++ b/tests/ui/modules/mod-same-item-names.rs @@ -0,0 +1,15 @@ +//! Test that items with identical names can coexist in different modules + +//@ run-pass + +#![allow(dead_code)] + +mod foo { + pub fn baz() {} +} + +mod bar { + pub fn baz() {} +} + +pub fn main() {} diff --git a/tests/ui/mut-function-arguments.rs b/tests/ui/mut-function-arguments.rs deleted file mode 100644 index 01c264fce03..00000000000 --- a/tests/ui/mut-function-arguments.rs +++ /dev/null @@ -1,19 +0,0 @@ -//@ run-pass - -fn f(mut y: Box<isize>) { - *y = 5; - assert_eq!(*y, 5); -} - -fn g() { - let frob = |mut q: Box<isize>| { *q = 2; assert_eq!(*q, 2); }; - let w = Box::new(37); - frob(w); - -} - -pub fn main() { - let z = Box::new(17); - f(z); - g(); -} diff --git a/tests/ui/mutual-recursion-group.rs b/tests/ui/mutual-recursion-group.rs deleted file mode 100644 index f83150af7dc..00000000000 --- a/tests/ui/mutual-recursion-group.rs +++ /dev/null @@ -1,15 +0,0 @@ -//@ run-pass - -#![allow(non_camel_case_types)] -#![allow(dead_code)] - - -enum colour { red, green, blue, } - -enum tree { children(Box<list>), leaf(colour), } - -enum list { cons(Box<tree>, Box<list>), nil, } - -enum small_list { kons(isize, Box<small_list>), neel, } - -pub fn main() { } diff --git a/tests/ui/myriad-closures.rs b/tests/ui/myriad-closures.rs deleted file mode 100644 index 541d27d5de4..00000000000 --- a/tests/ui/myriad-closures.rs +++ /dev/null @@ -1,39 +0,0 @@ -//@ run-pass -// This test case tests whether we can handle code bases that contain a high -// number of closures, something that needs special handling in the MingGW -// toolchain. -// See https://github.com/rust-lang/rust/issues/34793 for more information. - -// Make sure we don't optimize anything away: -//@ compile-flags: -C no-prepopulate-passes -Cpasses=name-anon-globals - -// Expand something exponentially -macro_rules! go_bacterial { - ($mac:ident) => ($mac!()); - ($mac:ident 1 $($t:tt)*) => ( - go_bacterial!($mac $($t)*); - go_bacterial!($mac $($t)*); - ) -} - -macro_rules! mk_closure { - () => ((move || {})()) -} - -macro_rules! mk_fn { - () => { - { - fn function() { - // Make 16 closures - go_bacterial!(mk_closure 1 1 1 1); - } - let _ = function(); - } - } -} - -fn main() { - // Make 2^8 functions, each containing 16 closures, - // resulting in 2^12 closures overall. - go_bacterial!(mk_fn 1 1 1 1 1 1 1 1); -} diff --git a/tests/ui/nested-block-comment.rs b/tests/ui/nested-block-comment.rs deleted file mode 100644 index 008df27e0e2..00000000000 --- a/tests/ui/nested-block-comment.rs +++ /dev/null @@ -1,11 +0,0 @@ -//@ run-pass - -/* This test checks that nested comments are supported - - /* - This should not panic - */ -*/ - -pub fn main() { -} diff --git a/tests/ui/nested-cfg-attrs.rs b/tests/ui/nested-cfg-attrs.rs deleted file mode 100644 index 941807a8431..00000000000 --- a/tests/ui/nested-cfg-attrs.rs +++ /dev/null @@ -1,4 +0,0 @@ -#[cfg_attr(all(), cfg_attr(all(), cfg(false)))] -fn f() {} - -fn main() { f() } //~ ERROR cannot find function `f` in this scope diff --git a/tests/ui/nested-class.rs b/tests/ui/nested-class.rs deleted file mode 100644 index f84ab40dd1d..00000000000 --- a/tests/ui/nested-class.rs +++ /dev/null @@ -1,25 +0,0 @@ -//@ run-pass - -#![allow(non_camel_case_types)] - -pub fn main() { - struct b { - i: isize, - } - - impl b { - fn do_stuff(&self) -> isize { return 37; } - } - - fn b(i:isize) -> b { - b { - i: i - } - } - - // fn b(x:isize) -> isize { panic!(); } - - let z = b(42); - assert_eq!(z.i, 42); - assert_eq!(z.do_stuff(), 37); -} diff --git a/tests/ui/nested-ty-params.rs b/tests/ui/nested-ty-params.rs deleted file mode 100644 index c00c3bc3372..00000000000 --- a/tests/ui/nested-ty-params.rs +++ /dev/null @@ -1,9 +0,0 @@ -fn hd<U>(v: Vec<U> ) -> U { - fn hd1(w: [U]) -> U { return w[0]; } - //~^ ERROR can't use generic parameters from outer item - //~| ERROR can't use generic parameters from outer item - - return hd1(v); -} - -fn main() {} diff --git a/tests/ui/nll/ty-outlives/impl-trait-captures.stderr b/tests/ui/nll/ty-outlives/impl-trait-captures.stderr index 6fd41a761e9..6bf1e333327 100644 --- a/tests/ui/nll/ty-outlives/impl-trait-captures.stderr +++ b/tests/ui/nll/ty-outlives/impl-trait-captures.stderr @@ -4,14 +4,14 @@ error[E0700]: hidden type for `Opaque(DefId(0:11 ~ impl_trait_captures[aeb9]::fo LL | fn foo<'a, T>(x: &T) -> impl Foo<'a> { | -- ------------ opaque type defined here | | - | hidden type `&ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), LateNamed(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::'_), '_)) T` captures the anonymous lifetime defined here + | hidden type `&ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), LateNamed(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::'_))) T` captures the anonymous lifetime defined here LL | x | ^ | -help: add a `use<...>` bound to explicitly capture `ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), LateNamed(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::'_), '_))` +help: add a `use<...>` bound to explicitly capture `ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), LateNamed(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::'_)))` | -LL | fn foo<'a, T>(x: &T) -> impl Foo<'a> + use<'a, ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), LateNamed(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::'_), '_)), T> { - | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +LL | fn foo<'a, T>(x: &T) -> impl Foo<'a> + use<'a, ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), LateNamed(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::'_))), T> { + | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/occurs-check-2.rs b/tests/ui/occurs-check-2.rs deleted file mode 100644 index 9289a8e870a..00000000000 --- a/tests/ui/occurs-check-2.rs +++ /dev/null @@ -1,9 +0,0 @@ -fn main() { - - let f; - let g; - - g = f; - //~^ ERROR overflow assigning `Box<_>` to `_` - f = Box::new(g); -} diff --git a/tests/ui/occurs-check-3.rs b/tests/ui/occurs-check-3.rs deleted file mode 100644 index 377a043daf3..00000000000 --- a/tests/ui/occurs-check-3.rs +++ /dev/null @@ -1,11 +0,0 @@ -// From Issue #778 - -enum Clam<T> { A(T) } -fn main() { - let c; - c = Clam::A(c); - //~^ ERROR overflow assigning `Clam<_>` to `_` - match c { - Clam::A::<isize>(_) => { } - } -} diff --git a/tests/ui/occurs-check.rs b/tests/ui/occurs-check.rs deleted file mode 100644 index 638b9b6d7e4..00000000000 --- a/tests/ui/occurs-check.rs +++ /dev/null @@ -1,5 +0,0 @@ -fn main() { - let f; - f = Box::new(f); - //~^ ERROR overflow assigning `Box<_>` to `_` -} diff --git a/tests/ui/opeq.rs b/tests/ui/opeq.rs deleted file mode 100644 index 956ea0684fa..00000000000 --- a/tests/ui/opeq.rs +++ /dev/null @@ -1,17 +0,0 @@ -//@ run-pass - -pub fn main() { - let mut x: isize = 1; - x *= 2; - println!("{}", x); - assert_eq!(x, 2); - x += 3; - println!("{}", x); - assert_eq!(x, 5); - x *= x; - println!("{}", x); - assert_eq!(x, 25); - x /= 5; - println!("{}", x); - assert_eq!(x, 5); -} diff --git a/tests/ui/oom_unwind.rs b/tests/ui/panics/oom-panic-unwind.rs index be5e63d430b..5974ad91406 100644 --- a/tests/ui/oom_unwind.rs +++ b/tests/ui/panics/oom-panic-unwind.rs @@ -1,3 +1,5 @@ +//! Test that out-of-memory conditions trigger catchable panics with `-Z oom=panic`. + //@ compile-flags: -Z oom=panic //@ run-pass //@ no-prefer-dynamic diff --git a/tests/ui/parser/doc-comment-in-generic.rs b/tests/ui/parser/doc-comment-in-generic.rs new file mode 100644 index 00000000000..2596496763b --- /dev/null +++ b/tests/ui/parser/doc-comment-in-generic.rs @@ -0,0 +1,13 @@ +//! Tests correct parsing of doc comments on generic parameters in traits. +//! Checks that compiler doesn't panic when processing this. + +//@ check-pass + +#![crate_type = "lib"] + +pub trait Layer< + /// Documentation for generic parameter. + Input, +> +{ +} diff --git a/tests/ui/parser/break-in-unlabeled-block-in-macro.rs b/tests/ui/parser/macro/break-in-unlabeled-block-in-macro.rs index eecc0026b12..eecc0026b12 100644 --- a/tests/ui/parser/break-in-unlabeled-block-in-macro.rs +++ b/tests/ui/parser/macro/break-in-unlabeled-block-in-macro.rs diff --git a/tests/ui/parser/break-in-unlabeled-block-in-macro.stderr b/tests/ui/parser/macro/break-in-unlabeled-block-in-macro.stderr index 2f46cb36750..2f46cb36750 100644 --- a/tests/ui/parser/break-in-unlabeled-block-in-macro.stderr +++ b/tests/ui/parser/macro/break-in-unlabeled-block-in-macro.stderr diff --git a/tests/ui/parser/do-not-suggest-semicolon-between-macro-without-exclamation-mark-and-array.rs b/tests/ui/parser/macro/do-not-suggest-semicolon-between-macro-without-exclamation-mark-and-array.rs index d6f7981813f..d6f7981813f 100644 --- a/tests/ui/parser/do-not-suggest-semicolon-between-macro-without-exclamation-mark-and-array.rs +++ b/tests/ui/parser/macro/do-not-suggest-semicolon-between-macro-without-exclamation-mark-and-array.rs diff --git a/tests/ui/parser/do-not-suggest-semicolon-between-macro-without-exclamation-mark-and-array.stderr b/tests/ui/parser/macro/do-not-suggest-semicolon-between-macro-without-exclamation-mark-and-array.stderr index 2796312f4ad..2796312f4ad 100644 --- a/tests/ui/parser/do-not-suggest-semicolon-between-macro-without-exclamation-mark-and-array.stderr +++ b/tests/ui/parser/macro/do-not-suggest-semicolon-between-macro-without-exclamation-mark-and-array.stderr diff --git a/tests/ui/parser/extern-abi-from-mac-literal-frag.rs b/tests/ui/parser/macro/extern-abi-from-mac-literal-frag.rs index 12b6c98705c..12b6c98705c 100644 --- a/tests/ui/parser/extern-abi-from-mac-literal-frag.rs +++ b/tests/ui/parser/macro/extern-abi-from-mac-literal-frag.rs diff --git a/tests/ui/parser/lit-err-in-macro.rs b/tests/ui/parser/macro/lit-err-in-macro.rs index ca117ac4a15..ca117ac4a15 100644 --- a/tests/ui/parser/lit-err-in-macro.rs +++ b/tests/ui/parser/macro/lit-err-in-macro.rs diff --git a/tests/ui/parser/lit-err-in-macro.stderr b/tests/ui/parser/macro/lit-err-in-macro.stderr index 08fe58643d4..08fe58643d4 100644 --- a/tests/ui/parser/lit-err-in-macro.stderr +++ b/tests/ui/parser/macro/lit-err-in-macro.stderr diff --git a/tests/ui/parser/macro-bad-delimiter-ident.rs b/tests/ui/parser/macro/macro-bad-delimiter-ident.rs index f461f06b4dc..f461f06b4dc 100644 --- a/tests/ui/parser/macro-bad-delimiter-ident.rs +++ b/tests/ui/parser/macro/macro-bad-delimiter-ident.rs diff --git a/tests/ui/parser/macro-bad-delimiter-ident.stderr b/tests/ui/parser/macro/macro-bad-delimiter-ident.stderr index 06f72cdecf2..06f72cdecf2 100644 --- a/tests/ui/parser/macro-bad-delimiter-ident.stderr +++ b/tests/ui/parser/macro/macro-bad-delimiter-ident.stderr diff --git a/tests/ui/parser/macro/mbe-bare-trait-object-maybe-trait-bound.rs b/tests/ui/parser/macro/macro-bare-trait-object-maybe-trait-bound.rs index 494e58c1ca5..494e58c1ca5 100644 --- a/tests/ui/parser/macro/mbe-bare-trait-object-maybe-trait-bound.rs +++ b/tests/ui/parser/macro/macro-bare-trait-object-maybe-trait-bound.rs diff --git a/tests/ui/parser/macro-braces-dot-question.rs b/tests/ui/parser/macro/macro-braces-dot-question.rs index 9b070f201b5..9b070f201b5 100644 --- a/tests/ui/parser/macro-braces-dot-question.rs +++ b/tests/ui/parser/macro/macro-braces-dot-question.rs diff --git a/tests/ui/parser/macro/mbe-dotdotdot-may-not-begin-a-type.rs b/tests/ui/parser/macro/macro-dotdotdot-may-not-begin-a-type.rs index 8be99f22d2e..8be99f22d2e 100644 --- a/tests/ui/parser/macro/mbe-dotdotdot-may-not-begin-a-type.rs +++ b/tests/ui/parser/macro/macro-dotdotdot-may-not-begin-a-type.rs diff --git a/tests/ui/parser/macro-keyword.rs b/tests/ui/parser/macro/macro-keyword.rs index 58489fb2c51..58489fb2c51 100644 --- a/tests/ui/parser/macro-keyword.rs +++ b/tests/ui/parser/macro/macro-keyword.rs diff --git a/tests/ui/parser/macro-keyword.stderr b/tests/ui/parser/macro/macro-keyword.stderr index bfe89e320e0..bfe89e320e0 100644 --- a/tests/ui/parser/macro-keyword.stderr +++ b/tests/ui/parser/macro/macro-keyword.stderr diff --git a/tests/ui/parser/macro-mismatched-delim-brace-paren.rs b/tests/ui/parser/macro/macro-mismatched-delim-brace-paren.rs index 404aa7b806a..404aa7b806a 100644 --- a/tests/ui/parser/macro-mismatched-delim-brace-paren.rs +++ b/tests/ui/parser/macro/macro-mismatched-delim-brace-paren.rs diff --git a/tests/ui/parser/macro-mismatched-delim-brace-paren.stderr b/tests/ui/parser/macro/macro-mismatched-delim-brace-paren.stderr index f9a3072229f..f9a3072229f 100644 --- a/tests/ui/parser/macro-mismatched-delim-brace-paren.stderr +++ b/tests/ui/parser/macro/macro-mismatched-delim-brace-paren.stderr diff --git a/tests/ui/parser/macro-mismatched-delim-paren-brace.rs b/tests/ui/parser/macro/macro-mismatched-delim-paren-brace.rs index 1a1b9edfbcb..1a1b9edfbcb 100644 --- a/tests/ui/parser/macro-mismatched-delim-paren-brace.rs +++ b/tests/ui/parser/macro/macro-mismatched-delim-paren-brace.rs diff --git a/tests/ui/parser/macro-mismatched-delim-paren-brace.stderr b/tests/ui/parser/macro/macro-mismatched-delim-paren-brace.stderr index 34217e21ae9..34217e21ae9 100644 --- a/tests/ui/parser/macro-mismatched-delim-paren-brace.stderr +++ b/tests/ui/parser/macro/macro-mismatched-delim-paren-brace.stderr diff --git a/tests/ui/parser/mbe_missing_right_paren.rs b/tests/ui/parser/macro/macro-missing-right-paren.rs index 85191931664..85191931664 100644 --- a/tests/ui/parser/mbe_missing_right_paren.rs +++ b/tests/ui/parser/macro/macro-missing-right-paren.rs diff --git a/tests/ui/parser/mbe_missing_right_paren.stderr b/tests/ui/parser/macro/macro-missing-right-paren.stderr index d45a2e3ab52..285f14830ce 100644 --- a/tests/ui/parser/mbe_missing_right_paren.stderr +++ b/tests/ui/parser/macro/macro-missing-right-paren.stderr @@ -1,5 +1,5 @@ error: this file contains an unclosed delimiter - --> $DIR/mbe_missing_right_paren.rs:3:19 + --> $DIR/macro-missing-right-paren.rs:3:19 | LL | macro_rules! abc(ؼ | - ^ diff --git a/tests/ui/parser/macros-no-semicolon-items.rs b/tests/ui/parser/macro/macros-no-semicolon-items.rs index 86889279cea..86889279cea 100644 --- a/tests/ui/parser/macros-no-semicolon-items.rs +++ b/tests/ui/parser/macro/macros-no-semicolon-items.rs diff --git a/tests/ui/parser/macros-no-semicolon-items.stderr b/tests/ui/parser/macro/macros-no-semicolon-items.stderr index f8f3ed83688..f8f3ed83688 100644 --- a/tests/ui/parser/macros-no-semicolon-items.stderr +++ b/tests/ui/parser/macro/macros-no-semicolon-items.stderr diff --git a/tests/ui/parser/macros-no-semicolon.rs b/tests/ui/parser/macro/macros-no-semicolon.rs index 24d1ae9e623..24d1ae9e623 100644 --- a/tests/ui/parser/macros-no-semicolon.rs +++ b/tests/ui/parser/macro/macros-no-semicolon.rs diff --git a/tests/ui/parser/macros-no-semicolon.stderr b/tests/ui/parser/macro/macros-no-semicolon.stderr index f310662dbb0..f310662dbb0 100644 --- a/tests/ui/parser/macros-no-semicolon.stderr +++ b/tests/ui/parser/macro/macros-no-semicolon.stderr diff --git a/tests/ui/parser/misspelled-macro-rules.fixed b/tests/ui/parser/macro/misspelled-macro-rules.fixed index 7471a5641c2..7471a5641c2 100644 --- a/tests/ui/parser/misspelled-macro-rules.fixed +++ b/tests/ui/parser/macro/misspelled-macro-rules.fixed diff --git a/tests/ui/parser/misspelled-macro-rules.rs b/tests/ui/parser/macro/misspelled-macro-rules.rs index 8f63f37d3d3..8f63f37d3d3 100644 --- a/tests/ui/parser/misspelled-macro-rules.rs +++ b/tests/ui/parser/macro/misspelled-macro-rules.rs diff --git a/tests/ui/parser/misspelled-macro-rules.stderr b/tests/ui/parser/macro/misspelled-macro-rules.stderr index fc718d8556d..fc718d8556d 100644 --- a/tests/ui/parser/misspelled-macro-rules.stderr +++ b/tests/ui/parser/macro/misspelled-macro-rules.stderr diff --git a/tests/ui/parser/pub-method-macro.rs b/tests/ui/parser/macro/pub-method-macro.rs index 0183bdcf622..0183bdcf622 100644 --- a/tests/ui/parser/pub-method-macro.rs +++ b/tests/ui/parser/macro/pub-method-macro.rs diff --git a/tests/ui/parser/pub-method-macro.stderr b/tests/ui/parser/macro/pub-method-macro.stderr index 2e2c30dc6ad..2e2c30dc6ad 100644 --- a/tests/ui/parser/pub-method-macro.stderr +++ b/tests/ui/parser/macro/pub-method-macro.stderr diff --git a/tests/ui/parser/semi-after-closure-in-macro.rs b/tests/ui/parser/macro/semi-after-closure-in-macro.rs index 1eeb04b8833..1eeb04b8833 100644 --- a/tests/ui/parser/semi-after-closure-in-macro.rs +++ b/tests/ui/parser/macro/semi-after-closure-in-macro.rs diff --git a/tests/ui/parser/trailing-question-in-macro-type.rs b/tests/ui/parser/macro/trailing-question-in-macro-type.rs index e2a681ddd11..e2a681ddd11 100644 --- a/tests/ui/parser/trailing-question-in-macro-type.rs +++ b/tests/ui/parser/macro/trailing-question-in-macro-type.rs diff --git a/tests/ui/parser/trailing-question-in-macro-type.stderr b/tests/ui/parser/macro/trailing-question-in-macro-type.stderr index e3d33bf251d..e3d33bf251d 100644 --- a/tests/ui/parser/trailing-question-in-macro-type.stderr +++ b/tests/ui/parser/macro/trailing-question-in-macro-type.stderr diff --git a/tests/ui/parser/nested-block-comments.rs b/tests/ui/parser/nested-block-comments.rs new file mode 100644 index 00000000000..8fe77896361 --- /dev/null +++ b/tests/ui/parser/nested-block-comments.rs @@ -0,0 +1,34 @@ +//! Test that nested block comments are properly supported by the parser. +//! +//! See <https://github.com/rust-lang/rust/issues/66>. + +//@ run-pass + +/* This test checks that nested comments are supported + + /* This is a nested comment + /* And this is even more deeply nested */ + Back to the first level of nesting + */ + + /* Another nested comment at the same level */ +*/ + +/* Additional test cases for nested comments */ + +#[rustfmt::skip] +/* + /* Level 1 + /* Level 2 + /* Level 3 */ + */ + */ +*/ + +pub fn main() { + // Check that code after nested comments works correctly + let _x = 42; + + /* Even inline /* nested */ comments work */ + let _y = /* nested /* comment */ test */ 100; +} diff --git a/tests/ui/parser/raw/raw-string-literals.rs b/tests/ui/parser/raw/raw-string-literals.rs new file mode 100644 index 00000000000..2272f268b36 --- /dev/null +++ b/tests/ui/parser/raw/raw-string-literals.rs Binary files differdiff --git a/tests/ui/pattern/move-ref-patterns/pattern-ref-bindings-reassignment.rs b/tests/ui/pattern/move-ref-patterns/pattern-ref-bindings-reassignment.rs new file mode 100644 index 00000000000..42b0b9ac44d --- /dev/null +++ b/tests/ui/pattern/move-ref-patterns/pattern-ref-bindings-reassignment.rs @@ -0,0 +1,24 @@ +//! Tests how we behave when the user attempts to mutate an immutable +//! binding that was introduced by either `ref` or `ref mut` +//! patterns. +//! +//! Such bindings cannot be made mutable via the mere addition of the +//! `mut` keyword, and thus we want to check that the compiler does not +//! suggest doing so. + +fn main() { + let (mut one_two, mut three_four) = ((1, 2), (3, 4)); + + // Bind via pattern: + // - `a` as immutable reference (`ref`) + // - `b` as mutable reference (`ref mut`) + let &mut (ref a, ref mut b) = &mut one_two; + + // Attempt to reassign immutable `ref`-bound variable + a = &three_four.0; + //~^ ERROR cannot assign twice to immutable variable `a` + + // Attempt to reassign mutable `ref mut`-bound variable + b = &mut three_four.1; + //~^ ERROR cannot assign twice to immutable variable `b` +} diff --git a/tests/ui/reassign-ref-mut.stderr b/tests/ui/pattern/move-ref-patterns/pattern-ref-bindings-reassignment.stderr index e623578e025..e04eb1dd25c 100644 --- a/tests/ui/reassign-ref-mut.stderr +++ b/tests/ui/pattern/move-ref-patterns/pattern-ref-bindings-reassignment.stderr @@ -1,13 +1,14 @@ error[E0384]: cannot assign twice to immutable variable `a` - --> $DIR/reassign-ref-mut.rs:12:5 + --> $DIR/pattern-ref-bindings-reassignment.rs:18:5 | LL | let &mut (ref a, ref mut b) = &mut one_two; | ----- first assignment to `a` +... LL | a = &three_four.0; | ^^^^^^^^^^^^^^^^^ cannot assign twice to immutable variable error[E0384]: cannot assign twice to immutable variable `b` - --> $DIR/reassign-ref-mut.rs:14:5 + --> $DIR/pattern-ref-bindings-reassignment.rs:22:5 | LL | let &mut (ref a, ref mut b) = &mut one_two; | --------- first assignment to `b` diff --git a/tests/ui/pptypedef.rs b/tests/ui/pptypedef.rs deleted file mode 100644 index d5f43df9d85..00000000000 --- a/tests/ui/pptypedef.rs +++ /dev/null @@ -1,13 +0,0 @@ -//@ dont-require-annotations: NOTE - -fn let_in<T, F>(x: T, f: F) where F: FnOnce(T) {} - -fn main() { - let_in(3u32, |i| { assert!(i == 3i32); }); - //~^ ERROR mismatched types - //~| NOTE expected `u32`, found `i32` - - let_in(3i32, |i| { assert!(i == 3u32); }); - //~^ ERROR mismatched types - //~| NOTE expected `i32`, found `u32` -} diff --git a/tests/ui/pptypedef.stderr b/tests/ui/pptypedef.stderr deleted file mode 100644 index a6d673e61c6..00000000000 --- a/tests/ui/pptypedef.stderr +++ /dev/null @@ -1,31 +0,0 @@ -error[E0308]: mismatched types - --> $DIR/pptypedef.rs:6:37 - | -LL | let_in(3u32, |i| { assert!(i == 3i32); }); - | - ^^^^ expected `u32`, found `i32` - | | - | expected because this is `u32` - | -help: change the type of the numeric literal from `i32` to `u32` - | -LL - let_in(3u32, |i| { assert!(i == 3i32); }); -LL + let_in(3u32, |i| { assert!(i == 3u32); }); - | - -error[E0308]: mismatched types - --> $DIR/pptypedef.rs:10:37 - | -LL | let_in(3i32, |i| { assert!(i == 3u32); }); - | - ^^^^ expected `i32`, found `u32` - | | - | expected because this is `i32` - | -help: change the type of the numeric literal from `u32` to `i32` - | -LL - let_in(3i32, |i| { assert!(i == 3u32); }); -LL + let_in(3i32, |i| { assert!(i == 3i32); }); - | - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/primitive-binop-lhs-mut.rs b/tests/ui/primitive-binop-lhs-mut.rs deleted file mode 100644 index d988e2ed14f..00000000000 --- a/tests/ui/primitive-binop-lhs-mut.rs +++ /dev/null @@ -1,6 +0,0 @@ -//@ run-pass - -fn main() { - let x = Box::new(0); - assert_eq!(0, *x + { drop(x); let _ = Box::new(main); 0 }); -} diff --git a/tests/ui/print-calling-conventions.rs b/tests/ui/print-calling-conventions.rs deleted file mode 100644 index 302ed088142..00000000000 --- a/tests/ui/print-calling-conventions.rs +++ /dev/null @@ -1,2 +0,0 @@ -//@ compile-flags: --print calling-conventions -//@ build-pass diff --git a/tests/ui/print-request/print-calling-conventions.rs b/tests/ui/print-request/print-calling-conventions.rs new file mode 100644 index 00000000000..cefaa0d9b6f --- /dev/null +++ b/tests/ui/print-request/print-calling-conventions.rs @@ -0,0 +1,4 @@ +//! Test that `--print calling-conventions` outputs all supported calling conventions. + +//@ compile-flags: --print calling-conventions +//@ build-pass diff --git a/tests/ui/print-calling-conventions.stdout b/tests/ui/print-request/print-calling-conventions.stdout index b8b939e1c04..b8b939e1c04 100644 --- a/tests/ui/print-calling-conventions.stdout +++ b/tests/ui/print-request/print-calling-conventions.stdout diff --git a/tests/ui/project-cache-issue-31849.rs b/tests/ui/project-cache-issue-31849.rs deleted file mode 100644 index 29c278171a6..00000000000 --- a/tests/ui/project-cache-issue-31849.rs +++ /dev/null @@ -1,65 +0,0 @@ -//@ run-pass -// Regression test for #31849: the problem here was actually a performance -// cliff, but I'm adding the test for reference. - -pub trait Upcast<T> { - fn upcast(self) -> T; -} - -impl<S1, S2, T1, T2> Upcast<(T1, T2)> for (S1,S2) - where S1: Upcast<T1>, - S2: Upcast<T2>, -{ - fn upcast(self) -> (T1, T2) { (self.0.upcast(), self.1.upcast()) } -} - -impl Upcast<()> for () -{ - fn upcast(self) -> () { () } -} - -pub trait ToStatic { - type Static: 'static; - fn to_static(self) -> Self::Static where Self: Sized; -} - -impl<T, U> ToStatic for (T, U) - where T: ToStatic, - U: ToStatic -{ - type Static = (T::Static, U::Static); - fn to_static(self) -> Self::Static { (self.0.to_static(), self.1.to_static()) } -} - -impl ToStatic for () -{ - type Static = (); - fn to_static(self) -> () { () } -} - - -trait Factory { - type Output; - fn build(&self) -> Self::Output; -} - -impl<S,T> Factory for (S, T) - where S: Factory, - T: Factory, - S::Output: ToStatic, - <S::Output as ToStatic>::Static: Upcast<S::Output>, -{ - type Output = (S::Output, T::Output); - fn build(&self) -> Self::Output { (self.0.build().to_static().upcast(), self.1.build()) } -} - -impl Factory for () { - type Output = (); - fn build(&self) -> Self::Output { () } -} - -fn main() { - // More parens, more time. - let it = ((((((((((),()),()),()),()),()),()),()),()),()); - it.build(); -} diff --git a/tests/ui/ptr-coercion-rpass.rs b/tests/ui/ptr-coercion-rpass.rs deleted file mode 100644 index 8cc4120328e..00000000000 --- a/tests/ui/ptr-coercion-rpass.rs +++ /dev/null @@ -1,29 +0,0 @@ -//@ run-pass - -#![allow(unused_variables)] -// Test coercions between pointers which don't do anything fancy like unsizing. - - -pub fn main() { - // &mut -> & - let x: &mut isize = &mut 42; - let x: &isize = x; - - let x: &isize = &mut 42; - - // & -> *const - let x: &isize = &42; - let x: *const isize = x; - - let x: *const isize = &42; - - // &mut -> *const - let x: &mut isize = &mut 42; - let x: *const isize = x; - - let x: *const isize = &mut 42; - - // *mut -> *const - let x: *mut isize = &mut 42; - let x: *const isize = x; -} diff --git a/tests/ui/query-visibility.rs b/tests/ui/query-visibility.rs deleted file mode 100644 index 84abe875910..00000000000 --- a/tests/ui/query-visibility.rs +++ /dev/null @@ -1,9 +0,0 @@ -//@ check-pass -// Check that it doesn't panic when `Input` gets its visibility checked. - -#![crate_type = "lib"] - -pub trait Layer< - /// Hello. - Input, -> {} diff --git a/tests/ui/raw-str.rs b/tests/ui/raw-str.rs deleted file mode 100644 index 23018403295..00000000000 --- a/tests/ui/raw-str.rs +++ /dev/null Binary files differdiff --git a/tests/ui/reassign-ref-mut.rs b/tests/ui/reassign-ref-mut.rs deleted file mode 100644 index d6d41e959d9..00000000000 --- a/tests/ui/reassign-ref-mut.rs +++ /dev/null @@ -1,16 +0,0 @@ -// Tests how we behave when the user attempts to mutate an immutable -// binding that was introduced by either `ref` or `ref mut` -// patterns. -// -// Such bindings cannot be made mutable via the mere addition of the -// `mut` keyword, and thus we want to check that the compiler does not -// suggest doing so. - -fn main() { - let (mut one_two, mut three_four) = ((1, 2), (3, 4)); - let &mut (ref a, ref mut b) = &mut one_two; - a = &three_four.0; - //~^ ERROR cannot assign twice to immutable variable `a` [E0384] - b = &mut three_four.1; - //~^ ERROR cannot assign twice to immutable variable `b` [E0384] -} diff --git a/tests/ui/repr/repr-empty-packed.stderr b/tests/ui/repr/repr-empty-packed.stderr index c824c2998b4..6565b2e8c1d 100644 --- a/tests/ui/repr/repr-empty-packed.stderr +++ b/tests/ui/repr/repr-empty-packed.stderr @@ -1,27 +1,26 @@ +error[E0517]: attribute should be applied to a struct or union + --> $DIR/repr-empty-packed.rs:5:8 + | +LL | #[repr(packed)] + | ^^^^^^ +LL | / pub enum Foo { +LL | | Bar, +LL | | Baz(i32), +LL | | } + | |_- not a struct or union + error: unused attribute --> $DIR/repr-empty-packed.rs:4:1 | LL | #[repr()] | ^^^^^^^^^ help: remove this attribute | - = note: attribute `repr` with an empty list has no effect note: the lint level is defined here --> $DIR/repr-empty-packed.rs:2:9 | LL | #![deny(unused_attributes)] | ^^^^^^^^^^^^^^^^^ -error[E0517]: attribute should be applied to a struct or union - --> $DIR/repr-empty-packed.rs:5:8 - | -LL | #[repr(packed)] - | ^^^^^^ -LL | / pub enum Foo { -LL | | Bar, -LL | | Baz(i32), -LL | | } - | |_- not a struct or union - error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0517`. diff --git a/tests/ui/resolve/resolve-same-name-struct.rs b/tests/ui/resolve/resolve-same-name-struct.rs new file mode 100644 index 00000000000..1bea0938e3d --- /dev/null +++ b/tests/ui/resolve/resolve-same-name-struct.rs @@ -0,0 +1,29 @@ +//! Test that name resolution works correctly when a struct and its constructor +//! function have the same name within a nested scope. This checks that the +//! compiler can distinguish between type names and value names in the same +//! namespace. + +//@ run-pass + +struct Point { + i: isize, +} + +impl Point { + fn get_value(&self) -> isize { + return 37; + } +} + +// Constructor function with the same name as the struct +#[allow(non_snake_case)] +fn Point(i: isize) -> Point { + Point { i } +} + +pub fn main() { + // Test that we can use the constructor function + let point = Point(42); + assert_eq!(point.i, 42); + assert_eq!(point.get_value(), 37); +} diff --git a/tests/ui/shadow-bool.rs b/tests/ui/shadowed/primitive-type-shadowing.rs index 8cba2c1710b..fdcb4246a82 100644 --- a/tests/ui/shadow-bool.rs +++ b/tests/ui/shadowed/primitive-type-shadowing.rs @@ -1,3 +1,6 @@ +//! Check that a primitive type can be shadowed by a user-defined type, and the primitive type +//! can still be referenced using its fully qualified path (e.g., `core::primitive::bool`). + //@ check-pass mod bar { diff --git a/tests/ui/shadowed-use-visibility.rs b/tests/ui/shadowed/use-shadows-reexport.rs index 5ce4103b559..d220e4b406b 100644 --- a/tests/ui/shadowed-use-visibility.rs +++ b/tests/ui/shadowed/use-shadows-reexport.rs @@ -1,3 +1,5 @@ +//! Check that a local `use` declaration can shadow a re-exported item within the same module. + //@ run-pass #![allow(unused_imports)] diff --git a/tests/ui/short-error-format.stderr b/tests/ui/short-error-format.stderr deleted file mode 100644 index 1a4a6d4df88..00000000000 --- a/tests/ui/short-error-format.stderr +++ /dev/null @@ -1,3 +0,0 @@ -$DIR/short-error-format.rs:6:9: error[E0308]: mismatched types: expected `u32`, found `String` -$DIR/short-error-format.rs:8:7: error[E0599]: no method named `salut` found for type `u32` in the current scope: method not found in `u32` -error: aborting due to 2 previous errors diff --git a/tests/ui/sized-borrowed-pointer.rs b/tests/ui/sized-borrowed-pointer.rs deleted file mode 100644 index bd213c067db..00000000000 --- a/tests/ui/sized-borrowed-pointer.rs +++ /dev/null @@ -1,9 +0,0 @@ -//@ run-pass - -#![allow(dead_code)] -// Possibly-dynamic size of typaram should be cleared at pointer boundary. - - -fn bar<T: Sized>() { } -fn foo<T>() { bar::<&T>() } -pub fn main() { } diff --git a/tests/ui/sized-cycle-note.rs b/tests/ui/sized-cycle-note.rs deleted file mode 100644 index 766a5fa0de3..00000000000 --- a/tests/ui/sized-cycle-note.rs +++ /dev/null @@ -1,7 +0,0 @@ -struct Baz { q: Option<Foo> } -//~^ ERROR recursive types `Baz` and `Foo` have infinite size -struct Foo { q: Option<Baz> } - -impl Foo { fn bar(&self) {} } - -fn main() {} diff --git a/tests/ui/sized-cycle-note.stderr b/tests/ui/sized-cycle-note.stderr deleted file mode 100644 index 21e54c12fed..00000000000 --- a/tests/ui/sized-cycle-note.stderr +++ /dev/null @@ -1,19 +0,0 @@ -error[E0072]: recursive types `Baz` and `Foo` have infinite size - --> $DIR/sized-cycle-note.rs:1:1 - | -LL | struct Baz { q: Option<Foo> } - | ^^^^^^^^^^ --- recursive without indirection -LL | -LL | struct Foo { q: Option<Baz> } - | ^^^^^^^^^^ --- recursive without indirection - | -help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle - | -LL ~ struct Baz { q: Option<Box<Foo>> } -LL | -LL ~ struct Foo { q: Option<Box<Baz>> } - | - -error: aborting due to 1 previous error - -For more information about this error, try `rustc --explain E0072`. diff --git a/tests/ui/sized-owned-pointer.rs b/tests/ui/sized-owned-pointer.rs deleted file mode 100644 index b35c0f91abd..00000000000 --- a/tests/ui/sized-owned-pointer.rs +++ /dev/null @@ -1,10 +0,0 @@ -//@ run-pass - -#![allow(dead_code)] -// Possibly-dynamic size of typaram should be cleared at pointer boundary. - - - -fn bar<T: Sized>() { } -fn foo<T>() { bar::<Box<T>>() } -pub fn main() { } diff --git a/tests/ui/sized/recursive-type-infinite-size.rs b/tests/ui/sized/recursive-type-infinite-size.rs new file mode 100644 index 00000000000..5cd8e895573 --- /dev/null +++ b/tests/ui/sized/recursive-type-infinite-size.rs @@ -0,0 +1,16 @@ +//! Check for compilation errors when recursive types are defined in a way +//! that leads to an infinite size. + +struct Baz { + //~^ ERROR recursive types `Baz` and `Foo` have infinite size + q: Option<Foo>, +} +struct Foo { + q: Option<Baz>, +} + +impl Foo { + fn bar(&self) {} +} + +fn main() {} diff --git a/tests/ui/sized/recursive-type-infinite-size.stderr b/tests/ui/sized/recursive-type-infinite-size.stderr new file mode 100644 index 00000000000..98ac36c4bb6 --- /dev/null +++ b/tests/ui/sized/recursive-type-infinite-size.stderr @@ -0,0 +1,25 @@ +error[E0072]: recursive types `Baz` and `Foo` have infinite size + --> $DIR/recursive-type-infinite-size.rs:4:1 + | +LL | struct Baz { + | ^^^^^^^^^^ +LL | +LL | q: Option<Foo>, + | --- recursive without indirection +LL | } +LL | struct Foo { + | ^^^^^^^^^^ +LL | q: Option<Baz>, + | --- recursive without indirection + | +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle + | +LL ~ q: Option<Box<Foo>>, +LL | } +LL | struct Foo { +LL ~ q: Option<Box<Baz>>, + | + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0072`. diff --git a/tests/ui/sized/sized-box-unsized-content.rs b/tests/ui/sized/sized-box-unsized-content.rs new file mode 100644 index 00000000000..9cc202a1582 --- /dev/null +++ b/tests/ui/sized/sized-box-unsized-content.rs @@ -0,0 +1,11 @@ +//! Check that `Box<T>` is `Sized`, even when `T` is a dynamically sized type. + +//@ run-pass + +#![allow(dead_code)] + +fn bar<T: Sized>() {} +fn foo<T>() { + bar::<Box<T>>() +} +pub fn main() {} diff --git a/tests/ui/sized/sized-reference-to-unsized.rs b/tests/ui/sized/sized-reference-to-unsized.rs new file mode 100644 index 00000000000..ac2934d8fe6 --- /dev/null +++ b/tests/ui/sized/sized-reference-to-unsized.rs @@ -0,0 +1,11 @@ +//! Check that a reference to a potentially unsized type (`&T`) is itself considered `Sized`. + +//@ run-pass + +#![allow(dead_code)] + +fn bar<T: Sized>() {} +fn foo<T>() { + bar::<&T>() +} +pub fn main() {} diff --git a/tests/ui/stable-addr-of.rs b/tests/ui/stable-addr-of.rs deleted file mode 100644 index e330a4853ce..00000000000 --- a/tests/ui/stable-addr-of.rs +++ /dev/null @@ -1,8 +0,0 @@ -//@ run-pass -// Issue #2040 - - -pub fn main() { - let foo: isize = 1; - assert_eq!(&foo as *const isize, &foo as *const isize); -} diff --git a/tests/ui/stable-mir-print/async-closure.rs b/tests/ui/stable-mir-print/async-closure.rs index 7da532a359f..80f96e09cfc 100644 --- a/tests/ui/stable-mir-print/async-closure.rs +++ b/tests/ui/stable-mir-print/async-closure.rs @@ -1,4 +1,4 @@ -//@ compile-flags: -Z unpretty=stable-mir --crate-type lib -C panic=abort +//@ compile-flags: -Z unpretty=stable-mir --crate-type lib -C panic=abort -Zmir-opt-level=0 //@ check-pass //@ only-x86_64 //@ edition: 2024 diff --git a/tests/ui/stable-mir-print/async-closure.stdout b/tests/ui/stable-mir-print/async-closure.stdout index 12e7a5530ac..31811299722 100644 --- a/tests/ui/stable-mir-print/async-closure.stdout +++ b/tests/ui/stable-mir-print/async-closure.stdout @@ -8,19 +8,30 @@ fn foo() -> () { debug y => _1; debug x => _2; bb0: { + StorageLive(_1); _1 = 0_i32; + StorageLive(_2); + StorageLive(_3); _3 = &_1; _2 = {coroutine-closure@$DIR/async-closure.rs:9:13: 9:21}(move _3); + StorageDead(_3); + _0 = (); + StorageDead(_2); + StorageDead(_1); return; } } fn foo::{closure#0}(_1: &{async closure@$DIR/async-closure.rs:9:13: 9:21}) -> {async closure body@$DIR/async-closure.rs:9:22: 11:6} { let mut _0: {async closure body@$DIR/async-closure.rs:9:22: 11:6}; let mut _2: &i32; + let mut _3: &i32; debug y => (*((*_1).0: &i32)); bb0: { - _2 = CopyForDeref(((*_1).0: &i32)); - _0 = {coroutine@$DIR/async-closure.rs:9:22: 11:6}(_2); + StorageLive(_2); + _3 = CopyForDeref(((*_1).0: &i32)); + _2 = &(*_3); + _0 = {coroutine@$DIR/async-closure.rs:9:22: 11:6}(move _2); + StorageDead(_2); return; } } @@ -28,25 +39,31 @@ fn foo::{closure#0}::{closure#0}(_1: Pin<&mut {async closure body@$DIR/async-clo let mut _0: Poll<()>; let _3: i32; let mut _4: &i32; - let mut _5: u32; - let mut _6: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; - let mut _7: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; + let mut _5: (); + let mut _6: &mut Context<'_>; + let mut _7: u32; let mut _8: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; - debug _task_context => _2; + let mut _9: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; + let mut _10: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; + debug _task_context => _6; debug y => (*((*(_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})).0: &i32)); debug y => _3; bb0: { - _6 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); - _5 = discriminant((*_6)); - switchInt(move _5) -> [0: bb1, 1: bb2, otherwise: bb3]; + _8 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); + _7 = discriminant((*_8)); + switchInt(move _7) -> [0: bb1, 1: bb2, otherwise: bb3]; } bb1: { - _7 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); - _4 = CopyForDeref(((*_7).0: &i32)); + _6 = move _2; + StorageLive(_3); + _9 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); + _4 = CopyForDeref(((*_9).0: &i32)); _3 = (*_4); - _0 = std::task::Poll::Ready(()); - _8 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); - discriminant((*_8) = 1; + _5 = (); + StorageDead(_3); + _0 = std::task::Poll::Ready(move _5); + _10 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); + discriminant((*_10) = 1; return; } bb2: { @@ -60,25 +77,31 @@ fn foo::{closure#0}::{synthetic#0}(_1: Pin<&mut {async closure body@$DIR/async-c let mut _0: Poll<()>; let _3: i32; let mut _4: &i32; - let mut _5: u32; - let mut _6: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; - let mut _7: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; + let mut _5: (); + let mut _6: &mut Context<'_>; + let mut _7: u32; let mut _8: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; - debug _task_context => _2; + let mut _9: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; + let mut _10: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6}; + debug _task_context => _6; debug y => (*((*(_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})).0: &i32)); debug y => _3; bb0: { - _6 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); - _5 = discriminant((*_6)); - switchInt(move _5) -> [0: bb1, 1: bb2, otherwise: bb3]; + _8 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); + _7 = discriminant((*_8)); + switchInt(move _7) -> [0: bb1, 1: bb2, otherwise: bb3]; } bb1: { - _7 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); - _4 = CopyForDeref(((*_7).0: &i32)); + _6 = move _2; + StorageLive(_3); + _9 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); + _4 = CopyForDeref(((*_9).0: &i32)); _3 = (*_4); - _0 = std::task::Poll::Ready(()); - _8 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); - discriminant((*_8) = 1; + _5 = (); + StorageDead(_3); + _0 = std::task::Poll::Ready(move _5); + _10 = CopyForDeref((_1.0: &mut {async closure body@$DIR/async-closure.rs:9:22: 11:6})); + discriminant((*_10) = 1; return; } bb2: { diff --git a/tests/ui/stable-mir-print/basic_function.rs b/tests/ui/stable-mir-print/basic_function.rs index 5f582ece6fb..21469c61f72 100644 --- a/tests/ui/stable-mir-print/basic_function.rs +++ b/tests/ui/stable-mir-print/basic_function.rs @@ -1,4 +1,4 @@ -//@ compile-flags: -Z unpretty=stable-mir -Z mir-opt-level=3 +//@ compile-flags: -Z unpretty=stable-mir -Zmir-opt-level=0 //@ check-pass //@ only-x86_64 //@ needs-unwind unwind edges are different with panic=abort diff --git a/tests/ui/stable-mir-print/basic_function.stdout b/tests/ui/stable-mir-print/basic_function.stdout index 76288c2aa49..319d9c1dc69 100644 --- a/tests/ui/stable-mir-print/basic_function.stdout +++ b/tests/ui/stable-mir-print/basic_function.stdout @@ -2,14 +2,18 @@ // If you find a bug or want to improve the output open a issue at https://github.com/rust-lang/project-stable-mir. fn foo(_1: i32) -> i32 { let mut _0: i32; - let mut _2: (i32, bool); + let mut _2: i32; + let mut _3: (i32, bool); debug i => _1; bb0: { - _2 = CheckedAdd(_1, 1_i32); - assert(!move (_2.1: bool), "attempt to compute `{} + {}`, which would overflow", _1, 1_i32) -> [success: bb1, unwind continue]; + StorageLive(_2); + _2 = _1; + _3 = CheckedAdd(_2, 1_i32); + assert(!move (_3.1: bool), "attempt to compute `{} + {}`, which would overflow", move _2, 1_i32) -> [success: bb1, unwind continue]; } bb1: { - _0 = move (_2.0: i32); + _0 = move (_3.0: i32); + StorageDead(_2); return; } } @@ -22,15 +26,23 @@ fn bar(_1: &mut Vec<i32>) -> Vec<i32> { debug vec => _1; debug new_vec => _2; bb0: { + StorageLive(_2); + StorageLive(_3); _3 = &(*_1); _2 = <Vec<i32> as Clone>::clone(move _3) -> [return: bb1, unwind continue]; } bb1: { + StorageDead(_3); + StorageLive(_4); + StorageLive(_5); _5 = &mut _2; _4 = Vec::<i32>::push(move _5, 1_i32) -> [return: bb2, unwind: bb3]; } bb2: { + StorageDead(_5); + StorageDead(_4); _0 = move _2; + StorageDead(_2); return; } bb3: { @@ -69,6 +81,7 @@ fn demux(_1: u8) -> u8 { fn main() -> () { let mut _0: (); bb0: { + _0 = (); return; } } diff --git a/tests/ui/stable-mir-print/operands.rs b/tests/ui/stable-mir-print/operands.rs index 34a74e2287e..484ad07cf04 100644 --- a/tests/ui/stable-mir-print/operands.rs +++ b/tests/ui/stable-mir-print/operands.rs @@ -1,4 +1,4 @@ -//@ compile-flags: -Z unpretty=stable-mir --crate-type lib -C panic=abort +//@ compile-flags: -Z unpretty=stable-mir --crate-type lib -C panic=abort -Zmir-opt-level=0 //@ check-pass //@ only-x86_64 //@ needs-unwind unwind edges are different with panic=abort diff --git a/tests/ui/stable-mir-print/operands.stdout b/tests/ui/stable-mir-print/operands.stdout index c3b1151ae24..37c5ec1a95e 100644 --- a/tests/ui/stable-mir-print/operands.stdout +++ b/tests/ui/stable-mir-print/operands.stdout @@ -3,185 +3,398 @@ fn operands(_1: u8) -> () { let mut _0: (); let _2: [u8; 10]; - let _3: u8; - let _4: usize; - let mut _5: bool; - let _6: u8; - let _7: usize; - let mut _8: (usize, bool); - let mut _9: bool; - let mut _10: (&u8, &u8); - let mut _11: &u8; - let mut _12: &u8; - let _13: &u8; - let _14: &u8; - let mut _15: bool; - let mut _16: u8; - let mut _17: u8; - let _18: core::panicking::AssertKind; - let _19: !; - let mut _20: Option<Arguments<'_>>; - let _21: &u8; - let _22: u8; - let mut _23: (&u8, &u8); + let mut _3: u8; + let _4: u8; + let _5: usize; + let mut _6: bool; + let _7: u8; + let _8: usize; + let mut _9: (usize, bool); + let mut _10: bool; + let _11: (); + let mut _12: (&u8, &u8); + let mut _13: &u8; + let mut _14: &u8; + let _15: &u8; + let _16: &u8; + let mut _17: bool; + let mut _18: u8; + let mut _19: u8; + let mut _20: !; + let _21: core::panicking::AssertKind; + let _22: !; + let mut _23: core::panicking::AssertKind; let mut _24: &u8; - let mut _25: &u8; - let _26: &u8; + let _25: &u8; + let mut _26: &u8; let _27: &u8; - let mut _28: bool; - let mut _29: u8; - let mut _30: u8; - let _31: core::panicking::AssertKind; - let _32: !; - let mut _33: Option<Arguments<'_>>; - let _34: (u8, u8); - let _35: u8; - let _36: u8; - let mut _37: (&u8, &u8); - let mut _38: &u8; - let mut _39: &u8; - let _40: &u8; - let _41: &u8; - let mut _42: bool; - let mut _43: u8; - let mut _44: u8; - let _45: core::panicking::AssertKind; - let _46: !; - let mut _47: Option<Arguments<'_>>; - let _48: usize; - let mut _49: &[u8]; - let mut _50: &[u8; 10]; - let _51: usize; - let _52: &usize; - let mut _53: (&usize, &usize); - let mut _54: &usize; - let mut _55: &usize; - let _56: &usize; - let _57: &usize; - let mut _58: bool; - let mut _59: usize; - let mut _60: usize; - let _61: core::panicking::AssertKind; - let _62: !; - let mut _63: Option<Arguments<'_>>; + let mut _28: Option<Arguments<'_>>; + let _29: &u8; + let _30: u8; + let _31: (); + let mut _32: (&u8, &u8); + let mut _33: &u8; + let mut _34: &u8; + let _35: &u8; + let _36: &u8; + let mut _37: bool; + let mut _38: u8; + let mut _39: u8; + let mut _40: !; + let _41: core::panicking::AssertKind; + let _42: !; + let mut _43: core::panicking::AssertKind; + let mut _44: &u8; + let _45: &u8; + let mut _46: &u8; + let _47: &u8; + let mut _48: Option<Arguments<'_>>; + let _49: (u8, u8); + let mut _50: u8; + let mut _51: u8; + let _52: u8; + let _53: u8; + let _54: (); + let mut _55: (&u8, &u8); + let mut _56: &u8; + let mut _57: &u8; + let _58: &u8; + let _59: &u8; + let mut _60: bool; + let mut _61: u8; + let mut _62: u8; + let mut _63: !; + let _64: core::panicking::AssertKind; + let _65: !; + let mut _66: core::panicking::AssertKind; + let mut _67: &u8; + let _68: &u8; + let mut _69: &u8; + let _70: &u8; + let mut _71: Option<Arguments<'_>>; + let _72: usize; + let mut _73: &[u8]; + let mut _74: &[u8; 10]; + let _75: usize; + let mut _76: &usize; + let _77: &usize; + let _78: (); + let mut _79: (&usize, &usize); + let mut _80: &usize; + let mut _81: &usize; + let _82: &usize; + let _83: &usize; + let mut _84: bool; + let mut _85: usize; + let mut _86: usize; + let mut _87: !; + let _88: core::panicking::AssertKind; + let _89: !; + let mut _90: core::panicking::AssertKind; + let mut _91: &usize; + let _92: &usize; + let mut _93: &usize; + let _94: &usize; + let mut _95: Option<Arguments<'_>>; debug val => _1; debug array => _2; - debug first => _3; - debug last => _6; - debug left_val => _13; - debug right_val => _14; - debug kind => _18; - debug reference => _21; - debug dereferenced => _22; - debug left_val => _26; - debug right_val => _27; - debug kind => _31; - debug tuple => _34; - debug first_again => _35; - debug first_again_again => _36; - debug left_val => _40; - debug right_val => _41; - debug kind => _45; - debug length => _48; - debug size_of => _51; - debug left_val => _56; - debug right_val => _57; - debug kind => _61; + debug first => _4; + debug last => _7; + debug left_val => _15; + debug right_val => _16; + debug kind => _21; + debug reference => _29; + debug dereferenced => _30; + debug left_val => _35; + debug right_val => _36; + debug kind => _41; + debug tuple => _49; + debug first_again => _52; + debug first_again_again => _53; + debug left_val => _58; + debug right_val => _59; + debug kind => _64; + debug length => _72; + debug size_of => _75; + debug left_val => _82; + debug right_val => _83; + debug kind => _88; bb0: { - _2 = [_1; 10]; - _4 = 0_usize; - _5 = Lt(_4, 10_usize); - assert(move _5, "index out of bounds: the length is {} but the index is {}", 10_usize, _4) -> [success: bb1, unwind unreachable]; + StorageLive(_2); + StorageLive(_3); + _3 = _1; + _2 = [move _3; 10]; + StorageDead(_3); + StorageLive(_4); + StorageLive(_5); + _5 = 0_usize; + _6 = Lt(_5, 10_usize); + assert(move _6, "index out of bounds: the length is {} but the index is {}", 10_usize, _5) -> [success: bb1, unwind unreachable]; } bb1: { - _3 = _2[_4]; - _8 = CheckedSub(10_usize, 1_usize); - assert(!move (_8.1: bool), "attempt to compute `{} - {}`, which would overflow", 10_usize, 1_usize) -> [success: bb2, unwind unreachable]; + _4 = _2[_5]; + StorageDead(_5); + StorageLive(_7); + StorageLive(_8); + _9 = CheckedSub(10_usize, 1_usize); + assert(!move (_9.1: bool), "attempt to compute `{} - {}`, which would overflow", 10_usize, 1_usize) -> [success: bb2, unwind unreachable]; } bb2: { - _7 = move (_8.0: usize); - _9 = Lt(_7, 10_usize); - assert(move _9, "index out of bounds: the length is {} but the index is {}", 10_usize, _7) -> [success: bb3, unwind unreachable]; + _8 = move (_9.0: usize); + _10 = Lt(_8, 10_usize); + assert(move _10, "index out of bounds: the length is {} but the index is {}", 10_usize, _8) -> [success: bb3, unwind unreachable]; } bb3: { - _6 = _2[_7]; - _11 = &_3; - _12 = &_6; - _10 = (move _11, move _12); - _13 = (_10.0: &u8); - _14 = (_10.1: &u8); - _16 = (*_13); - _17 = (*_14); - _15 = Eq(move _16, move _17); - switchInt(move _15) -> [0: bb5, otherwise: bb4]; + _7 = _2[_8]; + StorageDead(_8); + StorageLive(_11); + StorageLive(_12); + StorageLive(_13); + _13 = &_4; + StorageLive(_14); + _14 = &_7; + _12 = (move _13, move _14); + StorageDead(_14); + StorageDead(_13); + StorageLive(_15); + _15 = (_12.0: &u8); + StorageLive(_16); + _16 = (_12.1: &u8); + StorageLive(_17); + StorageLive(_18); + _18 = (*_15); + StorageLive(_19); + _19 = (*_16); + _17 = Eq(move _18, move _19); + switchInt(move _17) -> [0: bb5, otherwise: bb4]; } bb4: { - _21 = &_3; - _22 = (*_21); - _24 = &_22; - _25 = &_3; - _23 = (move _24, move _25); - _26 = (_23.0: &u8); - _27 = (_23.1: &u8); - _29 = (*_26); - _30 = (*_27); - _28 = Eq(move _29, move _30); - switchInt(move _28) -> [0: bb7, otherwise: bb6]; + StorageDead(_19); + StorageDead(_18); + _11 = (); + StorageDead(_17); + StorageDead(_16); + StorageDead(_15); + StorageDead(_12); + StorageDead(_11); + StorageLive(_29); + _29 = &_4; + StorageLive(_30); + _30 = (*_29); + StorageLive(_31); + StorageLive(_32); + StorageLive(_33); + _33 = &_30; + StorageLive(_34); + _34 = &_4; + _32 = (move _33, move _34); + StorageDead(_34); + StorageDead(_33); + StorageLive(_35); + _35 = (_32.0: &u8); + StorageLive(_36); + _36 = (_32.1: &u8); + StorageLive(_37); + StorageLive(_38); + _38 = (*_35); + StorageLive(_39); + _39 = (*_36); + _37 = Eq(move _38, move _39); + switchInt(move _37) -> [0: bb7, otherwise: bb6]; } bb5: { - _18 = core::panicking::AssertKind::Eq; - _20 = std::option::Option::None; - _19 = core::panicking::assert_failed::<u8, u8>(move _18, _13, _14, move _20) -> unwind unreachable; + StorageDead(_19); + StorageDead(_18); + StorageLive(_21); + _21 = core::panicking::AssertKind::Eq; + StorageLive(_22); + StorageLive(_23); + _23 = move _21; + StorageLive(_24); + StorageLive(_25); + _25 = &(*_15); + _24 = &(*_25); + StorageLive(_26); + StorageLive(_27); + _27 = &(*_16); + _26 = &(*_27); + StorageLive(_28); + _28 = std::option::Option::None; + _22 = core::panicking::assert_failed::<u8, u8>(move _23, move _24, move _26, move _28) -> unwind unreachable; } bb6: { - _34 = (_3, _6); - _35 = (_34.0: u8); - _36 = (_34.0: u8); - _38 = &_35; - _39 = &_36; - _37 = (move _38, move _39); - _40 = (_37.0: &u8); - _41 = (_37.1: &u8); - _43 = (*_40); - _44 = (*_41); - _42 = Eq(move _43, move _44); - switchInt(move _42) -> [0: bb9, otherwise: bb8]; + StorageDead(_39); + StorageDead(_38); + _31 = (); + StorageDead(_37); + StorageDead(_36); + StorageDead(_35); + StorageDead(_32); + StorageDead(_31); + StorageLive(_49); + StorageLive(_50); + _50 = _4; + StorageLive(_51); + _51 = _7; + _49 = (move _50, move _51); + StorageDead(_51); + StorageDead(_50); + StorageLive(_52); + _52 = (_49.0: u8); + StorageLive(_53); + _53 = (_49.0: u8); + StorageLive(_54); + StorageLive(_55); + StorageLive(_56); + _56 = &_52; + StorageLive(_57); + _57 = &_53; + _55 = (move _56, move _57); + StorageDead(_57); + StorageDead(_56); + StorageLive(_58); + _58 = (_55.0: &u8); + StorageLive(_59); + _59 = (_55.1: &u8); + StorageLive(_60); + StorageLive(_61); + _61 = (*_58); + StorageLive(_62); + _62 = (*_59); + _60 = Eq(move _61, move _62); + switchInt(move _60) -> [0: bb9, otherwise: bb8]; } bb7: { - _31 = core::panicking::AssertKind::Eq; - _33 = std::option::Option::None; - _32 = core::panicking::assert_failed::<u8, u8>(move _31, _26, _27, move _33) -> unwind unreachable; + StorageDead(_39); + StorageDead(_38); + StorageLive(_41); + _41 = core::panicking::AssertKind::Eq; + StorageLive(_42); + StorageLive(_43); + _43 = move _41; + StorageLive(_44); + StorageLive(_45); + _45 = &(*_35); + _44 = &(*_45); + StorageLive(_46); + StorageLive(_47); + _47 = &(*_36); + _46 = &(*_47); + StorageLive(_48); + _48 = std::option::Option::None; + _42 = core::panicking::assert_failed::<u8, u8>(move _43, move _44, move _46, move _48) -> unwind unreachable; } bb8: { - _50 = &_2; - _49 = move _50 as &[u8]; - _48 = PtrMetadata(move _49); - _52 = &_48; - _51 = std::mem::size_of_val::<usize>(_52) -> [return: bb10, unwind unreachable]; + StorageDead(_62); + StorageDead(_61); + _54 = (); + StorageDead(_60); + StorageDead(_59); + StorageDead(_58); + StorageDead(_55); + StorageDead(_54); + StorageLive(_72); + StorageLive(_73); + StorageLive(_74); + _74 = &_2; + _73 = move _74 as &[u8]; + StorageDead(_74); + _72 = core::slice::<impl [u8]>::len(move _73) -> [return: bb10, unwind unreachable]; } bb9: { - _45 = core::panicking::AssertKind::Eq; - _47 = std::option::Option::None; - _46 = core::panicking::assert_failed::<u8, u8>(move _45, _40, _41, move _47) -> unwind unreachable; + StorageDead(_62); + StorageDead(_61); + StorageLive(_64); + _64 = core::panicking::AssertKind::Eq; + StorageLive(_65); + StorageLive(_66); + _66 = move _64; + StorageLive(_67); + StorageLive(_68); + _68 = &(*_58); + _67 = &(*_68); + StorageLive(_69); + StorageLive(_70); + _70 = &(*_59); + _69 = &(*_70); + StorageLive(_71); + _71 = std::option::Option::None; + _65 = core::panicking::assert_failed::<u8, u8>(move _66, move _67, move _69, move _71) -> unwind unreachable; } bb10: { - _54 = &_48; - _55 = &_51; - _53 = (move _54, move _55); - _56 = (_53.0: &usize); - _57 = (_53.1: &usize); - _59 = (*_56); - _60 = (*_57); - _58 = Eq(move _59, move _60); - switchInt(move _58) -> [0: bb12, otherwise: bb11]; + StorageDead(_73); + StorageLive(_75); + StorageLive(_76); + StorageLive(_77); + _77 = &_72; + _76 = &(*_77); + _75 = std::mem::size_of_val::<usize>(move _76) -> [return: bb11, unwind unreachable]; } bb11: { - return; + StorageDead(_76); + StorageDead(_77); + StorageLive(_78); + StorageLive(_79); + StorageLive(_80); + _80 = &_72; + StorageLive(_81); + _81 = &_75; + _79 = (move _80, move _81); + StorageDead(_81); + StorageDead(_80); + StorageLive(_82); + _82 = (_79.0: &usize); + StorageLive(_83); + _83 = (_79.1: &usize); + StorageLive(_84); + StorageLive(_85); + _85 = (*_82); + StorageLive(_86); + _86 = (*_83); + _84 = Eq(move _85, move _86); + switchInt(move _84) -> [0: bb13, otherwise: bb12]; } bb12: { - _61 = core::panicking::AssertKind::Eq; - _63 = std::option::Option::None; - _62 = core::panicking::assert_failed::<usize, usize>(move _61, _56, _57, move _63) -> unwind unreachable; + StorageDead(_86); + StorageDead(_85); + _78 = (); + StorageDead(_84); + StorageDead(_83); + StorageDead(_82); + StorageDead(_79); + StorageDead(_78); + _0 = (); + StorageDead(_75); + StorageDead(_72); + StorageDead(_53); + StorageDead(_52); + StorageDead(_49); + StorageDead(_30); + StorageDead(_29); + StorageDead(_7); + StorageDead(_4); + StorageDead(_2); + return; + } + bb13: { + StorageDead(_86); + StorageDead(_85); + StorageLive(_88); + _88 = core::panicking::AssertKind::Eq; + StorageLive(_89); + StorageLive(_90); + _90 = move _88; + StorageLive(_91); + StorageLive(_92); + _92 = &(*_82); + _91 = &(*_92); + StorageLive(_93); + StorageLive(_94); + _94 = &(*_83); + _93 = &(*_94); + StorageLive(_95); + _95 = std::option::Option::None; + _89 = core::panicking::assert_failed::<usize, usize>(move _90, move _91, move _93, move _95) -> unwind unreachable; } } fn operands::{constant#0}() -> usize { @@ -196,17 +409,41 @@ fn more_operands() -> [Ctors; 3] { let _1: Dummy; let _2: Ctors; let _3: Ctors; - let _4: Ctors; + let mut _4: Dummy; + let _5: Ctors; + let mut _6: Ctors; + let mut _7: Ctors; + let mut _8: Ctors; debug dummy => _1; debug unit => _2; debug struct_like => _3; - debug tup_like => _4; + debug tup_like => _5; bb0: { + StorageLive(_1); _1 = Dummy('a', core::num::<impl i32>::MIN); + StorageLive(_2); _2 = Ctors::Unit; - _3 = Ctors::StructLike(move _1); - _4 = Ctors::TupLike(false); - _0 = [move _2, move _3, move _4]; + StorageLive(_3); + StorageLive(_4); + _4 = move _1; + _3 = Ctors::StructLike(move _4); + StorageDead(_4); + StorageLive(_5); + _5 = Ctors::TupLike(false); + StorageLive(_6); + _6 = move _2; + StorageLive(_7); + _7 = move _3; + StorageLive(_8); + _8 = move _5; + _0 = [move _6, move _7, move _8]; + StorageDead(_8); + StorageDead(_7); + StorageDead(_6); + StorageDead(_5); + StorageDead(_3); + StorageDead(_2); + StorageDead(_1); return; } } @@ -230,23 +467,33 @@ fn closures::{closure#0}(_1: {closure@$DIR/operands.rs:47:5: 47:19}, _2: bool) - let mut _0: bool; let mut _3: bool; let mut _4: bool; + let mut _5: bool; debug y => _2; debug x => (_1.0: bool); debug z => (_1.1: bool); bb0: { + StorageLive(_3); + StorageLive(_4); _4 = (_1.0: bool); - _3 = BitXor(move _4, _2); + StorageLive(_5); + _5 = _2; + _3 = BitXor(move _4, move _5); switchInt(move _3) -> [0: bb2, otherwise: bb1]; } bb1: { + StorageDead(_5); + StorageDead(_4); _0 = true; goto -> bb3; } bb2: { + StorageDead(_5); + StorageDead(_4); _0 = (_1.1: bool); goto -> bb3; } bb3: { + StorageDead(_3); return; } } diff --git a/tests/ui/paths-containing-nul.rs b/tests/ui/std/fs-nul-byte-paths.rs index 5c37980127d..79012362347 100644 --- a/tests/ui/paths-containing-nul.rs +++ b/tests/ui/std/fs-nul-byte-paths.rs @@ -1,18 +1,22 @@ -//@ run-pass +//! Test that `std::fs` functions properly reject paths containing NUL bytes. +//@ run-pass #![allow(deprecated)] //@ ignore-wasm32 no cwd //@ ignore-sgx no files -use std::fs; -use std::io; +use std::{fs, io}; fn assert_invalid_input<T>(on: &str, result: io::Result<T>) { fn inner(on: &str, result: io::Result<()>) { match result { Ok(()) => panic!("{} didn't return an error on a path with NUL", on), - Err(e) => assert!(e.kind() == io::ErrorKind::InvalidInput, - "{} returned a strange {:?} on a path with NUL", on, e.kind()), + Err(e) => assert!( + e.kind() == io::ErrorKind::InvalidInput, + "{} returned a strange {:?} on a path with NUL", + on, + e.kind() + ), } } inner(on, result.map(drop)) @@ -43,6 +47,8 @@ fn main() { assert_invalid_input("remove_dir", fs::remove_dir("\0")); assert_invalid_input("remove_dir_all", fs::remove_dir_all("\0")); assert_invalid_input("read_dir", fs::read_dir("\0")); - assert_invalid_input("set_permissions", - fs::set_permissions("\0", fs::metadata(".").unwrap().permissions())); + assert_invalid_input( + "set_permissions", + fs::set_permissions("\0", fs::metadata(".").unwrap().permissions()), + ); } diff --git a/tests/ui/nul-characters.rs b/tests/ui/str/nul-char-equivalence.rs index eb83f440d3e..2d4110de681 100644 --- a/tests/ui/nul-characters.rs +++ b/tests/ui/str/nul-char-equivalence.rs @@ -1,7 +1,8 @@ +//! Checks that different NUL character representations are equivalent in strings and chars. + //@ run-pass -pub fn main() -{ +pub fn main() { let all_nuls1 = "\0\x00\u{0}\u{0}"; let all_nuls2 = "\u{0}\u{0}\x00\0"; let all_nuls3 = "\u{0}\u{0}\x00\0"; @@ -17,11 +18,9 @@ pub fn main() assert_eq!(all_nuls3, all_nuls4); // all extracted characters in all_nuls are equivalent to each other - for c1 in all_nuls1.chars() - { - for c2 in all_nuls1.chars() - { - assert_eq!(c1,c2); + for c1 in all_nuls1.chars() { + for c2 in all_nuls1.chars() { + assert_eq!(c1, c2); } } diff --git a/tests/ui/std-uncopyable-atomics.rs b/tests/ui/sync/atomic-types-not-copyable.rs index d85864ecac2..d96414676ee 100644 --- a/tests/ui/std-uncopyable-atomics.rs +++ b/tests/ui/sync/atomic-types-not-copyable.rs @@ -1,8 +1,10 @@ -// Issue #8380 +//! Check that atomic types from `std::sync::atomic` are not `Copy` +//! and cannot be moved out of a shared reference. +//! +//! Regression test for <https://github.com/rust-lang/rust/issues/8380>. - -use std::sync::atomic::*; use std::ptr; +use std::sync::atomic::*; fn main() { let x = AtomicBool::new(false); diff --git a/tests/ui/std-uncopyable-atomics.stderr b/tests/ui/sync/atomic-types-not-copyable.stderr index 8c5d0b96096..05103f5d8f2 100644 --- a/tests/ui/std-uncopyable-atomics.stderr +++ b/tests/ui/sync/atomic-types-not-copyable.stderr @@ -1,5 +1,5 @@ error[E0507]: cannot move out of a shared reference - --> $DIR/std-uncopyable-atomics.rs:9:13 + --> $DIR/atomic-types-not-copyable.rs:11:13 | LL | let x = *&x; | ^^^ move occurs because value has type `std::sync::atomic::AtomicBool`, which does not implement the `Copy` trait @@ -11,7 +11,7 @@ LL + let x = &x; | error[E0507]: cannot move out of a shared reference - --> $DIR/std-uncopyable-atomics.rs:11:13 + --> $DIR/atomic-types-not-copyable.rs:13:13 | LL | let x = *&x; | ^^^ move occurs because value has type `std::sync::atomic::AtomicIsize`, which does not implement the `Copy` trait @@ -23,7 +23,7 @@ LL + let x = &x; | error[E0507]: cannot move out of a shared reference - --> $DIR/std-uncopyable-atomics.rs:13:13 + --> $DIR/atomic-types-not-copyable.rs:15:13 | LL | let x = *&x; | ^^^ move occurs because value has type `std::sync::atomic::AtomicUsize`, which does not implement the `Copy` trait @@ -35,7 +35,7 @@ LL + let x = &x; | error[E0507]: cannot move out of a shared reference - --> $DIR/std-uncopyable-atomics.rs:15:13 + --> $DIR/atomic-types-not-copyable.rs:17:13 | LL | let x = *&x; | ^^^ move occurs because value has type `std::sync::atomic::AtomicPtr<usize>`, which does not implement the `Copy` trait diff --git a/tests/ui/sse2.rs b/tests/ui/target-feature/target-feature-detection.rs index a1894cc03db..3404bfbe782 100644 --- a/tests/ui/sse2.rs +++ b/tests/ui/target-feature/target-feature-detection.rs @@ -1,3 +1,6 @@ +//! Check that `cfg!(target_feature = "...")` correctly detects available CPU features, +//! specifically `sse2` on x86/x86_64 platforms, and correctly reports absent features. + //@ run-pass #![allow(stable_features)] @@ -10,17 +13,23 @@ fn main() { Ok(s) => { // Skip this tests on i586-unknown-linux-gnu where sse2 is disabled if s.contains("i586") { - return + return; } } Err(_) => return, } if cfg!(any(target_arch = "x86", target_arch = "x86_64")) { - assert!(cfg!(target_feature = "sse2"), - "SSE2 was not detected as available on an x86 platform"); + assert!( + cfg!(target_feature = "sse2"), + "SSE2 was not detected as available on an x86 platform" + ); } // check a negative case too -- certainly not enabled by default #[expect(unexpected_cfgs)] - { assert!(cfg!(not(target_feature = "ferris_wheel")), - "🎡 shouldn't be detected as available by default on any platform") }; + { + assert!( + cfg!(not(target_feature = "ferris_wheel")), + "🎡 shouldn't be detected as available by default on any platform" + ) + }; } diff --git a/tests/ui/traits/const-traits/mbe-bare-trait-objects-const-trait-bounds.rs b/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.rs index a5f6ae198f6..a5f6ae198f6 100644 --- a/tests/ui/traits/const-traits/mbe-bare-trait-objects-const-trait-bounds.rs +++ b/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.rs diff --git a/tests/ui/traits/const-traits/mbe-bare-trait-objects-const-trait-bounds.stderr b/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.stderr index 56dad5301a4..bc0e48112b9 100644 --- a/tests/ui/traits/const-traits/mbe-bare-trait-objects-const-trait-bounds.stderr +++ b/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.stderr @@ -1,5 +1,5 @@ error: expected identifier, found `]` - --> $DIR/mbe-bare-trait-objects-const-trait-bounds.rs:20:16 + --> $DIR/macro-bare-trait-objects-const-trait-bounds.rs:20:16 | LL | ($Type:ty) => { | -------- while parsing argument for this `ty` macro fragment @@ -8,7 +8,7 @@ LL | check! { [const] Trait } | ^ expected identifier error[E0658]: const trait impls are experimental - --> $DIR/mbe-bare-trait-objects-const-trait-bounds.rs:20:11 + --> $DIR/macro-bare-trait-objects-const-trait-bounds.rs:20:11 | LL | check! { [const] Trait } | ^^^^^ diff --git a/tests/ui/traits/const-traits/mbe-const-trait-bound-theoretical-regression.rs b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.rs index 3dcdb0cad94..3dcdb0cad94 100644 --- a/tests/ui/traits/const-traits/mbe-const-trait-bound-theoretical-regression.rs +++ b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.rs diff --git a/tests/ui/traits/const-traits/mbe-const-trait-bound-theoretical-regression.stderr b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr index f4b401b7386..5dd648554c9 100644 --- a/tests/ui/traits/const-traits/mbe-const-trait-bound-theoretical-regression.stderr +++ b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr @@ -1,5 +1,5 @@ error: ty - --> $DIR/mbe-const-trait-bound-theoretical-regression.rs:8:19 + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:8:19 | LL | ($ty:ty) => { compile_error!("ty"); }; | ^^^^^^^^^^^^^^^^^^^^ @@ -10,7 +10,7 @@ LL | demo! { impl const Trait } = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) error: ty - --> $DIR/mbe-const-trait-bound-theoretical-regression.rs:8:19 + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:8:19 | LL | ($ty:ty) => { compile_error!("ty"); }; | ^^^^^^^^^^^^^^^^^^^^ @@ -21,7 +21,7 @@ LL | demo! { dyn const Trait } = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0658]: const trait impls are experimental - --> $DIR/mbe-const-trait-bound-theoretical-regression.rs:15:14 + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:15:14 | LL | demo! { impl const Trait } | ^^^^^ @@ -31,7 +31,7 @@ LL | demo! { impl const Trait } = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: const trait impls are experimental - --> $DIR/mbe-const-trait-bound-theoretical-regression.rs:18:13 + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:18:13 | LL | demo! { dyn const Trait } | ^^^^^ diff --git a/tests/ui/traits/const-traits/mbe-dyn-const-2015.rs b/tests/ui/traits/const-traits/macro-dyn-const-2015.rs index fadfbe66788..fadfbe66788 100644 --- a/tests/ui/traits/const-traits/mbe-dyn-const-2015.rs +++ b/tests/ui/traits/const-traits/macro-dyn-const-2015.rs diff --git a/tests/ui/opt-in-copy.rs b/tests/ui/traits/copy-requires-all-fields-copy.rs index d0257b5745d..8c829a7382b 100644 --- a/tests/ui/opt-in-copy.rs +++ b/tests/ui/traits/copy-requires-all-fields-copy.rs @@ -1,3 +1,5 @@ +//! Test that `Copy` cannot be implemented if any field doesn't implement `Copy`. + struct CantCopyThis; struct IWantToCopyThis { diff --git a/tests/ui/opt-in-copy.stderr b/tests/ui/traits/copy-requires-all-fields-copy.stderr index 258ff16e6e4..1a9e1ada366 100644 --- a/tests/ui/opt-in-copy.stderr +++ b/tests/ui/traits/copy-requires-all-fields-copy.stderr @@ -1,5 +1,5 @@ error[E0204]: the trait `Copy` cannot be implemented for this type - --> $DIR/opt-in-copy.rs:7:15 + --> $DIR/copy-requires-all-fields-copy.rs:9:15 | LL | but_i_cant: CantCopyThis, | ------------------------ this field does not implement `Copy` @@ -8,7 +8,7 @@ LL | impl Copy for IWantToCopyThis {} | ^^^^^^^^^^^^^^^ error[E0204]: the trait `Copy` cannot be implemented for this type - --> $DIR/opt-in-copy.rs:19:15 + --> $DIR/copy-requires-all-fields-copy.rs:21:15 | LL | ButICant(CantCopyThisEither), | ------------------ this field does not implement `Copy` diff --git a/tests/ui/string-box-error.rs b/tests/ui/traits/error-trait-object-from-string.rs index 9a7cd81ee04..896f164a04d 100644 --- a/tests/ui/string-box-error.rs +++ b/tests/ui/traits/error-trait-object-from-string.rs @@ -1,6 +1,7 @@ +//! Check that `String` and `&str` can be converted into `Box<dyn Error>` and +//! `Box<dyn Error + Send + Sync>` trait objects + //@ run-pass -// Ensure that both `Box<dyn Error + Send + Sync>` and `Box<dyn Error>` can be -// obtained from `String`. use std::error::Error; diff --git a/tests/ui/traits/next-solver/issue-118950-root-region.stderr b/tests/ui/traits/next-solver/issue-118950-root-region.stderr index 391272b8d3b..ce4f742a3fa 100644 --- a/tests/ui/traits/next-solver/issue-118950-root-region.stderr +++ b/tests/ui/traits/next-solver/issue-118950-root-region.stderr @@ -25,7 +25,7 @@ help: this trait has no implementations, consider adding one LL | trait ToUnit<'a> { | ^^^^^^^^^^^^^^^^ - WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: ['^0.Named(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a), "'a"), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc), .. } + WARN rustc_infer::infer::relate::generalize may incompletely handle alias type: AliasTy { args: ['^0.Named(DefId(0:15 ~ issue_118950_root_region[d54f]::{impl#1}::'a)), ?1t], def_id: DefId(0:8 ~ issue_118950_root_region[d54f]::Assoc), .. } error[E0277]: the trait bound `for<'a> *const T: ToUnit<'a>` is not satisfied --> $DIR/issue-118950-root-region.rs:19:9 | diff --git a/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.bad.stderr b/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.bad.stderr index 7dd383b1e7a..d51927aaa34 100644 --- a/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.bad.stderr +++ b/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.bad.stderr @@ -7,19 +7,19 @@ LL | #![feature(non_lifetime_binders)] = note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information = note: `#[warn(incomplete_features)]` on by default -error[E0310]: the placeholder type `!1_"T"` may not live long enough +error[E0310]: the placeholder type `T` may not live long enough --> $DIR/placeholders-dont-outlive-static.rs:13:5 | LL | foo(); | ^^^^^ | | - | the placeholder type `!1_"T"` must be valid for the static lifetime... + | the placeholder type `T` must be valid for the static lifetime... | ...so that the type `T` will meet its required lifetime bounds | help: consider adding an explicit lifetime bound | -LL | fn bad() where !1_"T": 'static { - | +++++++++++++++++++++ +LL | fn bad() where T: 'static { + | ++++++++++++++++ error: aborting due to 1 previous error; 1 warning emitted diff --git a/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.good.stderr b/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.good.stderr index b4f00978ada..bc1a1992399 100644 --- a/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.good.stderr +++ b/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.good.stderr @@ -7,19 +7,19 @@ LL | #![feature(non_lifetime_binders)] = note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information = note: `#[warn(incomplete_features)]` on by default -error[E0310]: the placeholder type `!1_"T"` may not live long enough +error[E0310]: the placeholder type `T` may not live long enough --> $DIR/placeholders-dont-outlive-static.rs:19:5 | LL | foo(); | ^^^^^ | | - | the placeholder type `!1_"T"` must be valid for the static lifetime... + | the placeholder type `T` must be valid for the static lifetime... | ...so that the type `T` will meet its required lifetime bounds | help: consider adding an explicit lifetime bound | -LL | fn good() where for<T> T: 'static, !1_"T": 'static { - | +++++++++++++++++ +LL | fn good() where for<T> T: 'static, T: 'static { + | ++++++++++++ error: aborting due to 1 previous error; 1 warning emitted diff --git a/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.rs b/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.rs index e87863ab251..3133d6aeedc 100644 --- a/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.rs +++ b/tests/ui/traits/non_lifetime_binders/placeholders-dont-outlive-static.rs @@ -11,7 +11,7 @@ fn foo() where for<T> T: 'static {} #[cfg(bad)] fn bad() { foo(); - //[bad]~^ ERROR the placeholder type `!1_"T"` may not live long enough + //[bad]~^ ERROR the placeholder type `T` may not live long enough } #[cfg(good)] diff --git a/tests/ui/traits/non_lifetime_binders/type-match-with-late-bound.stderr b/tests/ui/traits/non_lifetime_binders/type-match-with-late-bound.stderr index 9d54675c260..15902bf16de 100644 --- a/tests/ui/traits/non_lifetime_binders/type-match-with-late-bound.stderr +++ b/tests/ui/traits/non_lifetime_binders/type-match-with-late-bound.stderr @@ -7,11 +7,11 @@ LL | #![feature(non_lifetime_binders)] = note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information = note: `#[warn(incomplete_features)]` on by default -error[E0309]: the placeholder type `!1_"F"` may not live long enough +error[E0309]: the placeholder type `F` may not live long enough --> $DIR/type-match-with-late-bound.rs:8:1 | LL | async fn walk2<'a, T: 'a>(_: T) - | ^ -- the placeholder type `!1_"F"` must be valid for the lifetime `'a` as defined here... + | ^ -- the placeholder type `F` must be valid for the lifetime `'a` as defined here... | _| | | LL | | where @@ -25,36 +25,37 @@ LL | for<F> F: 'a, | ^^ help: consider adding an explicit lifetime bound | -LL | for<F> F: 'a, !1_"F": 'a - | ++++++++++ +LL | for<F> F: 'a, F: 'a + | +++++ -error[E0309]: the placeholder type `!1_"F"` may not live long enough +error[E0309]: the placeholder type `F` may not live long enough --> $DIR/type-match-with-late-bound.rs:11:1 | LL | async fn walk2<'a, T: 'a>(_: T) - | -- the placeholder type `!1_"F"` must be valid for the lifetime `'a` as defined here... + | -- the placeholder type `F` must be valid for the lifetime `'a` as defined here... ... LL | {} | ^^ ...so that the type `F` will meet its required lifetime bounds | help: consider adding an explicit lifetime bound | -LL | for<F> F: 'a, !1_"F": 'a - | ++++++++++ +LL | for<F> F: 'a, F: 'a + | +++++ -error[E0309]: the placeholder type `!2_"F"` may not live long enough +error[E0309]: the placeholder type `F` may not live long enough --> $DIR/type-match-with-late-bound.rs:11:1 | LL | async fn walk2<'a, T: 'a>(_: T) - | -- the placeholder type `!2_"F"` must be valid for the lifetime `'a` as defined here... + | -- the placeholder type `F` must be valid for the lifetime `'a` as defined here... ... LL | {} | ^^ ...so that the type `F` will meet its required lifetime bounds | + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` help: consider adding an explicit lifetime bound | -LL | for<F> F: 'a, !2_"F": 'a - | ++++++++++ +LL | for<F> F: 'a, F: 'a + | +++++ error: aborting due to 3 previous errors; 1 warning emitted diff --git a/tests/ui/object-pointer-types.rs b/tests/ui/traits/trait-object-method-receiver-rules.rs index 760a50e5b79..383e59c131a 100644 --- a/tests/ui/object-pointer-types.rs +++ b/tests/ui/traits/trait-object-method-receiver-rules.rs @@ -1,7 +1,8 @@ +//! Checks that method availability rules for trait objects depend on receiver type. + trait Foo { fn borrowed(&self); fn borrowed_mut(&mut self); - fn owned(self: Box<Self>); } @@ -20,7 +21,7 @@ fn borrowed_mut_receiver(x: &mut dyn Foo) { fn owned_receiver(x: Box<dyn Foo>) { x.borrowed(); x.borrowed_mut(); // See [1] - x.managed(); //~ ERROR no method named `managed` found + x.managed(); //~ ERROR no method named `managed` found x.owned(); } diff --git a/tests/ui/object-pointer-types.stderr b/tests/ui/traits/trait-object-method-receiver-rules.stderr index 72b290f2ad9..83b61a2e6b5 100644 --- a/tests/ui/object-pointer-types.stderr +++ b/tests/ui/traits/trait-object-method-receiver-rules.stderr @@ -1,5 +1,5 @@ error[E0599]: no method named `owned` found for reference `&dyn Foo` in the current scope - --> $DIR/object-pointer-types.rs:11:7 + --> $DIR/trait-object-method-receiver-rules.rs:12:7 | LL | fn owned(self: Box<Self>); | --------- the method might not be found because of this arbitrary self type @@ -13,7 +13,7 @@ LL | x.to_owned(); | +++ error[E0599]: no method named `owned` found for mutable reference `&mut dyn Foo` in the current scope - --> $DIR/object-pointer-types.rs:17:7 + --> $DIR/trait-object-method-receiver-rules.rs:18:7 | LL | fn owned(self: Box<Self>); | --------- the method might not be found because of this arbitrary self type @@ -22,7 +22,7 @@ LL | x.owned(); | ^^^^^ method not found in `&mut dyn Foo` error[E0599]: no method named `managed` found for struct `Box<(dyn Foo + 'static)>` in the current scope - --> $DIR/object-pointer-types.rs:23:7 + --> $DIR/trait-object-method-receiver-rules.rs:24:7 | LL | x.managed(); | ^^^^^^^ method not found in `Box<(dyn Foo + 'static)>` diff --git a/tests/ui/objects-coerce-freeze-borrored.rs b/tests/ui/traits/trait-object-mut-to-shared-coercion.rs index e122bb99380..26b5cc6d2df 100644 --- a/tests/ui/objects-coerce-freeze-borrored.rs +++ b/tests/ui/traits/trait-object-mut-to-shared-coercion.rs @@ -1,6 +1,6 @@ -//@ run-pass -// Test that we can coerce an `@Object` to an `&Object` +//! Tests that coercion from `&mut dyn Trait` to `&dyn Trait` works correctly. +//@ run-pass trait Foo { fn foo(&self) -> usize; diff --git a/tests/ui/type-inference/direct-self-reference-occurs-check.rs b/tests/ui/type-inference/direct-self-reference-occurs-check.rs new file mode 100644 index 00000000000..6e3d8251fc4 --- /dev/null +++ b/tests/ui/type-inference/direct-self-reference-occurs-check.rs @@ -0,0 +1,9 @@ +//! Test that occurs check prevents direct self-reference in variable assignment. +//! +//! Regression test for <https://github.com/rust-lang/rust/issues/768>. + +fn main() { + let f; + f = Box::new(f); + //~^ ERROR overflow assigning `Box<_>` to `_` +} diff --git a/tests/ui/occurs-check.stderr b/tests/ui/type-inference/direct-self-reference-occurs-check.stderr index ea7c541abc1..6c522ffac1f 100644 --- a/tests/ui/occurs-check.stderr +++ b/tests/ui/type-inference/direct-self-reference-occurs-check.stderr @@ -1,5 +1,5 @@ error[E0275]: overflow assigning `Box<_>` to `_` - --> $DIR/occurs-check.rs:3:18 + --> $DIR/direct-self-reference-occurs-check.rs:7:18 | LL | f = Box::new(f); | ^ diff --git a/tests/ui/type-inference/enum-self-reference-occurs-check.rs b/tests/ui/type-inference/enum-self-reference-occurs-check.rs new file mode 100644 index 00000000000..2905868b8bf --- /dev/null +++ b/tests/ui/type-inference/enum-self-reference-occurs-check.rs @@ -0,0 +1,16 @@ +//! Test that occurs check prevents infinite types with enum self-references. +//! +//! Regression test for <https://github.com/rust-lang/rust/issues/778>. + +enum Clam<T> { + A(T), +} + +fn main() { + let c; + c = Clam::A(c); + //~^ ERROR overflow assigning `Clam<_>` to `_` + match c { + Clam::A::<isize>(_) => {} + } +} diff --git a/tests/ui/occurs-check-3.stderr b/tests/ui/type-inference/enum-self-reference-occurs-check.stderr index eb05c94957c..3239be51a17 100644 --- a/tests/ui/occurs-check-3.stderr +++ b/tests/ui/type-inference/enum-self-reference-occurs-check.stderr @@ -1,5 +1,5 @@ error[E0275]: overflow assigning `Clam<_>` to `_` - --> $DIR/occurs-check-3.rs:6:17 + --> $DIR/enum-self-reference-occurs-check.rs:11:17 | LL | c = Clam::A(c); | ^ diff --git a/tests/ui/type-inference/infinite-type-occurs-check.rs b/tests/ui/type-inference/infinite-type-occurs-check.rs new file mode 100644 index 00000000000..b353824e931 --- /dev/null +++ b/tests/ui/type-inference/infinite-type-occurs-check.rs @@ -0,0 +1,12 @@ +//! Test that occurs check prevents infinite types during type inference. +//! +//! Regression test for <https://github.com/rust-lang/rust/issues/768>. + +fn main() { + let f; + let g; + + g = f; + //~^ ERROR overflow assigning `Box<_>` to `_` + f = Box::new(g); +} diff --git a/tests/ui/occurs-check-2.stderr b/tests/ui/type-inference/infinite-type-occurs-check.stderr index 5f296967f30..9cb8bb91796 100644 --- a/tests/ui/occurs-check-2.stderr +++ b/tests/ui/type-inference/infinite-type-occurs-check.stderr @@ -1,5 +1,5 @@ error[E0275]: overflow assigning `Box<_>` to `_` - --> $DIR/occurs-check-2.rs:6:9 + --> $DIR/infinite-type-occurs-check.rs:9:9 | LL | g = f; | ^ diff --git a/tests/ui/type/inherent-impl-primitive-types-error.rs b/tests/ui/type/inherent-impl-primitive-types-error.rs new file mode 100644 index 00000000000..88b8b9da56b --- /dev/null +++ b/tests/ui/type/inherent-impl-primitive-types-error.rs @@ -0,0 +1,28 @@ +//! Test that inherent impl blocks cannot be defined for primitive types + +impl u8 { + //~^ ERROR: cannot define inherent `impl` for primitive types + pub const B: u8 = 0; +} + +impl str { + //~^ ERROR: cannot define inherent `impl` for primitive types + fn foo() {} + fn bar(self) {} //~ ERROR: size for values of type `str` cannot be known +} + +impl char { + //~^ ERROR: cannot define inherent `impl` for primitive types + pub const B: u8 = 0; + pub const C: u8 = 0; + fn foo() {} + fn bar(self) {} +} + +struct MyType; +impl &MyType { + //~^ ERROR: cannot define inherent `impl` for primitive types + pub fn for_ref(self) {} +} + +fn main() {} diff --git a/tests/ui/kinds-of-primitive-impl.stderr b/tests/ui/type/inherent-impl-primitive-types-error.stderr index 1c8c417e88c..5b79521a35e 100644 --- a/tests/ui/kinds-of-primitive-impl.stderr +++ b/tests/ui/type/inherent-impl-primitive-types-error.stderr @@ -1,5 +1,5 @@ error[E0390]: cannot define inherent `impl` for primitive types - --> $DIR/kinds-of-primitive-impl.rs:1:1 + --> $DIR/inherent-impl-primitive-types-error.rs:3:1 | LL | impl u8 { | ^^^^^^^ @@ -7,7 +7,7 @@ LL | impl u8 { = help: consider using an extension trait instead error[E0390]: cannot define inherent `impl` for primitive types - --> $DIR/kinds-of-primitive-impl.rs:6:1 + --> $DIR/inherent-impl-primitive-types-error.rs:8:1 | LL | impl str { | ^^^^^^^^ @@ -15,7 +15,7 @@ LL | impl str { = help: consider using an extension trait instead error[E0390]: cannot define inherent `impl` for primitive types - --> $DIR/kinds-of-primitive-impl.rs:12:1 + --> $DIR/inherent-impl-primitive-types-error.rs:14:1 | LL | impl char { | ^^^^^^^^^ @@ -23,7 +23,7 @@ LL | impl char { = help: consider using an extension trait instead error[E0390]: cannot define inherent `impl` for primitive types - --> $DIR/kinds-of-primitive-impl.rs:21:1 + --> $DIR/inherent-impl-primitive-types-error.rs:23:1 | LL | impl &MyType { | ^^^^^^^^^^^^ @@ -32,7 +32,7 @@ LL | impl &MyType { = note: you could also try moving the reference to uses of `MyType` (such as `self`) within the implementation error[E0277]: the size for values of type `str` cannot be known at compilation time - --> $DIR/kinds-of-primitive-impl.rs:9:12 + --> $DIR/inherent-impl-primitive-types-error.rs:11:12 | LL | fn bar(self) {} | ^^^^ doesn't have a size known at compile-time diff --git a/tests/ui/type/mutually-recursive-types.rs b/tests/ui/type/mutually-recursive-types.rs new file mode 100644 index 00000000000..5472e158221 --- /dev/null +++ b/tests/ui/type/mutually-recursive-types.rs @@ -0,0 +1,47 @@ +//! Test that mutually recursive type definitions are properly handled by the compiler. +//! This checks that types can reference each other in their definitions through +//! `Box` indirection, creating cycles in the type dependency graph. + +//@ run-pass + +#[derive(Debug, PartialEq)] +enum Colour { + Red, + Green, + Blue, +} + +#[derive(Debug, PartialEq)] +enum Tree { + Children(Box<List>), + Leaf(Colour), +} + +#[derive(Debug, PartialEq)] +enum List { + Cons(Box<Tree>, Box<List>), + Nil, +} + +#[derive(Debug, PartialEq)] +enum SmallList { + Kons(isize, Box<SmallList>), + Neel, +} + +pub fn main() { + // Construct and test all variants of Colour + let _ = Tree::Leaf(Colour::Red); + + let _ = Tree::Leaf(Colour::Green); + + let _ = Tree::Leaf(Colour::Blue); + + let _ = List::Nil; + + let _ = Tree::Children(Box::new(List::Nil)); + + let _ = List::Cons(Box::new(Tree::Leaf(Colour::Blue)), Box::new(List::Nil)); + + let _ = SmallList::Kons(42, Box::new(SmallList::Neel)); +} diff --git a/tests/ui/typeck/nested-generic-traits-performance.rs b/tests/ui/typeck/nested-generic-traits-performance.rs new file mode 100644 index 00000000000..e029228c1b2 --- /dev/null +++ b/tests/ui/typeck/nested-generic-traits-performance.rs @@ -0,0 +1,82 @@ +//! Test that deeply nested generic traits with complex bounds +//! don't cause excessive memory usage during type checking. +//! +//! Regression test for <https://github.com/rust-lang/rust/issues/31849>. + +//@ run-pass + +pub trait Upcast<T> { + fn upcast(self) -> T; +} + +impl<S1, S2, T1, T2> Upcast<(T1, T2)> for (S1, S2) +where + S1: Upcast<T1>, + S2: Upcast<T2>, +{ + fn upcast(self) -> (T1, T2) { + (self.0.upcast(), self.1.upcast()) + } +} + +impl Upcast<()> for () { + fn upcast(self) -> () { + () + } +} + +pub trait ToStatic { + type Static: 'static; + fn to_static(self) -> Self::Static + where + Self: Sized; +} + +impl<T, U> ToStatic for (T, U) +where + T: ToStatic, + U: ToStatic, +{ + type Static = (T::Static, U::Static); + fn to_static(self) -> Self::Static { + (self.0.to_static(), self.1.to_static()) + } +} + +impl ToStatic for () { + type Static = (); + fn to_static(self) -> () { + () + } +} + +trait Factory { + type Output; + fn build(&self) -> Self::Output; +} + +impl<S, T> Factory for (S, T) +where + S: Factory, + T: Factory, + S::Output: ToStatic, + <S::Output as ToStatic>::Static: Upcast<S::Output>, +{ + type Output = (S::Output, T::Output); + fn build(&self) -> Self::Output { + (self.0.build().to_static().upcast(), self.1.build()) + } +} + +impl Factory for () { + type Output = (); + fn build(&self) -> Self::Output { + () + } +} + +fn main() { + // Deeply nested tuple to trigger the original performance issue + let it = ((((((((((), ()), ()), ()), ()), ()), ()), ()), ()), ()); + it.build(); +} diff --git a/tests/ui/unpretty/deprecated-attr.stdout b/tests/ui/unpretty/deprecated-attr.stdout index a2b645d00d0..042c2f61bd4 100644 --- a/tests/ui/unpretty/deprecated-attr.stdout +++ b/tests/ui/unpretty/deprecated-attr.stdout @@ -9,12 +9,12 @@ extern crate std; #[attr = Deprecation {deprecation: Deprecation {since: Unspecified}}] struct PlainDeprecated; -#[attr = Deprecation {deprecation: Deprecation {since: Unspecified, note: -"here's why this is deprecated"}}] +#[attr = Deprecation {deprecation: Deprecation {since: Unspecified, +note: "here's why this is deprecated"}}] struct DirectNote; -#[attr = Deprecation {deprecation: Deprecation {since: Unspecified, note: -"here's why this is deprecated"}}] +#[attr = Deprecation {deprecation: Deprecation {since: Unspecified, +note: "here's why this is deprecated"}}] struct ExplicitNote; #[attr = Deprecation {deprecation: Deprecation {since: NonStandard("1.2.3"), @@ -28,8 +28,6 @@ struct FlippedOrder; fn f() { // Attribute is ignored here (with a warning), but still preserved in HIR - #[attr = Deprecation {deprecation: - Deprecation {since: - Unspecified}}] + #[attr = Deprecation {deprecation: Deprecation {since: Unspecified}}] 0 } diff --git a/tests/ui/unpretty/exhaustive.hir.stdout b/tests/ui/unpretty/exhaustive.hir.stdout index 2b8f3b21396..a559d51ed5d 100644 --- a/tests/ui/unpretty/exhaustive.hir.stdout +++ b/tests/ui/unpretty/exhaustive.hir.stdout @@ -64,7 +64,7 @@ mod attributes { #[doc = "outer doc attribute"] #[doc = "macro"] #[allow()] - #[attr = Repr([ReprC])] + #[attr = Repr {reprs: [ReprC]}] struct Struct; } diff --git a/tests/ui/where-clauses/higher-ranked-fn-type.verbose.stderr b/tests/ui/where-clauses/higher-ranked-fn-type.verbose.stderr index 0d8ec5f8928..89a91a1f1ad 100644 --- a/tests/ui/where-clauses/higher-ranked-fn-type.verbose.stderr +++ b/tests/ui/where-clauses/higher-ranked-fn-type.verbose.stderr @@ -1,10 +1,10 @@ -error[E0277]: the trait bound `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b))> fn(&'^1_0.Named(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), "'b") ()): Foo` is not satisfied +error[E0277]: the trait bound `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b)))> fn(&'^1_0.Named(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b)) ()): Foo` is not satisfied --> $DIR/higher-ranked-fn-type.rs:20:5 | LL | called() | ^^^^^^^^ unsatisfied trait bound | - = help: the trait `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b))> Foo` is not implemented for `fn(&'^1_0.Named(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), "'b") ())` + = help: the trait `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b)))> Foo` is not implemented for `fn(&'^1_0.Named(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b)) ())` help: this trait has no implementations, consider adding one --> $DIR/higher-ranked-fn-type.rs:6:1 | |