diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index e9c05eb5f45..a11721ba021 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -332,6 +332,15 @@ impl FnDeclKind { _ => false, } } + + fn async_fn_allowed(&self, tcx: TyCtxt<'_>) -> bool { + match self { + FnDeclKind::Fn | FnDeclKind::Inherent => true, + FnDeclKind::Impl if tcx.features().async_fn_in_trait => true, + FnDeclKind::Trait if tcx.features().async_fn_in_trait => true, + _ => false, + } + } } #[derive(Copy, Clone)] @@ -1692,14 +1701,14 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { })); let output = if let Some((ret_id, span)) = make_ret_async { - if !kind.impl_trait_allowed(self.tcx) { + if !kind.async_fn_allowed(self.tcx) { match kind { FnDeclKind::Trait | FnDeclKind::Impl => { self.tcx .sess .create_feature_err( TraitFnAsync { fn_span, span }, - sym::return_position_impl_trait_in_trait, + sym::async_fn_in_trait, ) .emit(); } @@ -1917,9 +1926,13 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { let future_bound = this.lower_async_fn_output_type_to_future_bound( output, span, - ImplTraitContext::ReturnPositionOpaqueTy { - origin: hir::OpaqueTyOrigin::FnReturn(fn_def_id), - in_trait, + if in_trait && !this.tcx.features().return_position_impl_trait_in_trait { + ImplTraitContext::Disallowed(ImplTraitPosition::TraitReturn) + } else { + ImplTraitContext::ReturnPositionOpaqueTy { + origin: hir::OpaqueTyOrigin::FnReturn(fn_def_id), + in_trait, + } }, ); diff --git a/compiler/rustc_error_messages/locales/en-US/passes.ftl b/compiler/rustc_error_messages/locales/en-US/passes.ftl index 556a6452f1a..995ad4fe258 100644 --- a/compiler/rustc_error_messages/locales/en-US/passes.ftl +++ b/compiler/rustc_error_messages/locales/en-US/passes.ftl @@ -268,3 +268,6 @@ passes_link_ordinal = attribute should be applied to a foreign function or stati passes_collapse_debuginfo = `collapse_debuginfo` attribute should be applied to macro definitions .label = not a macro definition + +passes_deprecated_annotation_has_no_effect = this `#[deprecated]` annotation has no effect + .suggestion = remove the unnecessary deprecation attribute diff --git a/compiler/rustc_feature/src/active.rs b/compiler/rustc_feature/src/active.rs index ad28595ca82..4c891fbf16e 100644 --- a/compiler/rustc_feature/src/active.rs +++ b/compiler/rustc_feature/src/active.rs @@ -312,6 +312,8 @@ declare_features! ( (active, associated_type_defaults, "1.2.0", Some(29661), None), /// Allows `async || body` closures. (active, async_closure, "1.37.0", Some(62290), None), + /// Alows async functions to be declared, implemented, and used in traits. + (incomplete, async_fn_in_trait, "CURRENT_RUSTC_VERSION", Some(91611), None), /// Allows `extern "C-unwind" fn` to enable unwinding across ABI boundaries. (active, c_unwind, "1.52.0", Some(74990), None), /// Allows using C-variadics. diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index 18255a5089c..82099d9e3f3 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -51,6 +51,7 @@ use super::{InferCtxt, RegionVariableOrigin, SubregionOrigin, TypeTrace, ValuePa use crate::infer; use crate::infer::error_reporting::nice_region_error::find_anon_type::find_anon_type; +use crate::infer::ExpectedFound; use crate::traits::error_reporting::report_object_safety_error; use crate::traits::{ IfExpressionCause, MatchExpressionArmCause, ObligationCause, ObligationCauseCode, @@ -1653,8 +1654,114 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> { ), Mismatch::Fixed(s) => (s.into(), s.into(), None), }; - match (&terr, expected == found) { - (TypeError::Sorts(values), extra) => { + + enum Similar<'tcx> { + Adts { expected: ty::AdtDef<'tcx>, found: ty::AdtDef<'tcx> }, + PrimitiveFound { expected: ty::AdtDef<'tcx>, found: Ty<'tcx> }, + PrimitiveExpected { expected: Ty<'tcx>, found: ty::AdtDef<'tcx> }, + } + + let similarity = |ExpectedFound { expected, found }: ExpectedFound>| { + if let ty::Adt(expected, _) = expected.kind() && let Some(primitive) = found.primitive_symbol() { + let path = self.tcx.def_path(expected.did()).data; + let name = path.last().unwrap().data.get_opt_name(); + if name == Some(primitive) { + return Some(Similar::PrimitiveFound { expected: *expected, found }); + } + } else if let Some(primitive) = expected.primitive_symbol() && let ty::Adt(found, _) = found.kind() { + let path = self.tcx.def_path(found.did()).data; + let name = path.last().unwrap().data.get_opt_name(); + if name == Some(primitive) { + return Some(Similar::PrimitiveExpected { expected, found: *found }); + } + } else if let ty::Adt(expected, _) = expected.kind() && let ty::Adt(found, _) = found.kind() { + if !expected.did().is_local() && expected.did().krate == found.did().krate { + // Most likely types from different versions of the same crate + // are in play, in which case this message isn't so helpful. + // A "perhaps two different versions..." error is already emitted for that. + return None; + } + let f_path = self.tcx.def_path(found.did()).data; + let e_path = self.tcx.def_path(expected.did()).data; + + if let (Some(e_last), Some(f_last)) = (e_path.last(), f_path.last()) && e_last == f_last { + return Some(Similar::Adts{expected: *expected, found: *found}); + } + } + None + }; + + match terr { + // If two types mismatch but have similar names, mention that specifically. + TypeError::Sorts(values) if let Some(s) = similarity(values) => { + let diagnose_primitive = + |prim: Ty<'tcx>, + shadow: Ty<'tcx>, + defid: DefId, + diagnostic: &mut Diagnostic| { + let name = shadow.sort_string(self.tcx); + diagnostic.note(format!( + "{prim} and {name} have similar names, but are actually distinct types" + )); + diagnostic + .note(format!("{prim} is a primitive defined by the language")); + let def_span = self.tcx.def_span(defid); + let msg = if defid.is_local() { + format!("{name} is defined in the current crate") + } else { + let crate_name = self.tcx.crate_name(defid.krate); + format!("{name} is defined in crate `{crate_name}") + }; + diagnostic.span_note(def_span, msg); + }; + + let diagnose_adts = + |expected_adt : ty::AdtDef<'tcx>, + found_adt: ty::AdtDef<'tcx>, + diagnostic: &mut Diagnostic| { + let found_name = values.found.sort_string(self.tcx); + let expected_name = values.expected.sort_string(self.tcx); + + let found_defid = found_adt.did(); + let expected_defid = expected_adt.did(); + + diagnostic.note(format!("{found_name} and {expected_name} have similar names, but are actually distinct types")); + for (defid, name) in + [(found_defid, found_name), (expected_defid, expected_name)] + { + let def_span = self.tcx.def_span(defid); + + let msg = if found_defid.is_local() && expected_defid.is_local() { + let module = self + .tcx + .parent_module_from_def_id(defid.expect_local()) + .to_def_id(); + let module_name = self.tcx.def_path(module).to_string_no_crate_verbose(); + format!("{name} is defined in module `crate{module_name}` of the current crate") + } else if defid.is_local() { + format!("{name} is defined in the current crate") + } else { + let crate_name = self.tcx.crate_name(defid.krate); + format!("{name} is defined in crate `{crate_name}`") + }; + diagnostic.span_note(def_span, msg); + } + }; + + match s { + Similar::Adts{expected, found} => { + diagnose_adts(expected, found, diag) + } + Similar::PrimitiveFound{expected, found: prim} => { + diagnose_primitive(prim, values.expected, expected.did(), diag) + } + Similar::PrimitiveExpected{expected: prim, found} => { + diagnose_primitive(prim, values.found, found.did(), diag) + } + } + } + TypeError::Sorts(values) => { + let extra = expected == found; let sort_string = |ty: Ty<'tcx>| match (extra, ty.kind()) { (true, ty::Opaque(def_id, _)) => { let sm = self.tcx.sess.source_map(); @@ -1707,10 +1814,10 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> { ); } } - (TypeError::ObjectUnsafeCoercion(_), _) => { + TypeError::ObjectUnsafeCoercion(_) => { diag.note_unsuccessful_coercion(found, expected); } - (_, _) => { + _ => { debug!( "note_type_err: exp_found={:?}, expected={:?} found={:?}", exp_found, expected, found diff --git a/compiler/rustc_infer/src/lib.rs b/compiler/rustc_infer/src/lib.rs index ef60d2c9188..909a597e221 100644 --- a/compiler/rustc_infer/src/lib.rs +++ b/compiler/rustc_infer/src/lib.rs @@ -20,6 +20,7 @@ #![cfg_attr(bootstrap, feature(label_break_value))] #![feature(let_chains)] #![cfg_attr(bootstrap, feature(let_else))] +#![feature(if_let_guard)] #![feature(min_specialization)] #![feature(never_type)] #![feature(try_blocks)] diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index d2f73f274f8..e773b3032aa 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -19,7 +19,7 @@ use rustc_hir as hir; use rustc_hir::def_id::DefId; use rustc_index::vec::Idx; use rustc_macros::HashStable; -use rustc_span::symbol::{kw, Symbol}; +use rustc_span::symbol::{kw, sym, Symbol}; use rustc_target::abi::VariantIdx; use rustc_target::spec::abi; use std::borrow::Cow; @@ -2207,6 +2207,35 @@ impl<'tcx> Ty<'tcx> { } } } + + // If `self` is a primitive, return its [`Symbol`]. + pub fn primitive_symbol(self) -> Option { + match self.kind() { + ty::Bool => Some(sym::bool), + ty::Char => Some(sym::char), + ty::Float(f) => match f { + ty::FloatTy::F32 => Some(sym::f32), + ty::FloatTy::F64 => Some(sym::f64), + }, + ty::Int(f) => match f { + ty::IntTy::Isize => Some(sym::isize), + ty::IntTy::I8 => Some(sym::i8), + ty::IntTy::I16 => Some(sym::i16), + ty::IntTy::I32 => Some(sym::i32), + ty::IntTy::I64 => Some(sym::i64), + ty::IntTy::I128 => Some(sym::i128), + }, + ty::Uint(f) => match f { + ty::UintTy::Usize => Some(sym::usize), + ty::UintTy::U8 => Some(sym::u8), + ty::UintTy::U16 => Some(sym::u16), + ty::UintTy::U32 => Some(sym::u32), + ty::UintTy::U64 => Some(sym::u64), + ty::UintTy::U128 => Some(sym::u128), + }, + _ => None, + } + } } /// Extra information about why we ended up with a particular variance. diff --git a/compiler/rustc_passes/src/errors.rs b/compiler/rustc_passes/src/errors.rs index be67c9e3b82..cdfa7cf7f93 100644 --- a/compiler/rustc_passes/src/errors.rs +++ b/compiler/rustc_passes/src/errors.rs @@ -658,3 +658,10 @@ pub struct CollapseDebuginfo { #[label] pub defn_span: Span, } + +#[derive(LintDiagnostic)] +#[diag(passes::deprecated_annotation_has_no_effect)] +pub struct DeprecatedAnnotationHasNoEffect { + #[suggestion(applicability = "machine-applicable", code = "")] + pub span: Span, +} diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs index 9ba1276099d..3f23b027aef 100644 --- a/compiler/rustc_passes/src/stability.rs +++ b/compiler/rustc_passes/src/stability.rs @@ -1,6 +1,7 @@ //! A pass that annotates every item and method with its stability level, //! propagating default levels lexically from parent to children ast nodes. +use crate::errors; use rustc_attr::{ self as attr, rust_version_symbol, ConstStability, Stability, StabilityLevel, Unstable, UnstableReason, VERSION_PLACEHOLDER, @@ -122,16 +123,12 @@ impl<'a, 'tcx> Annotator<'a, 'tcx> { if kind == AnnotationKind::Prohibited || kind == AnnotationKind::DeprecationProhibited { let hir_id = self.tcx.hir().local_def_id_to_hir_id(def_id); - self.tcx.struct_span_lint_hir(USELESS_DEPRECATED, hir_id, *span, |lint| { - lint.build("this `#[deprecated]` annotation has no effect") - .span_suggestion_short( - *span, - "remove the unnecessary deprecation attribute", - "", - rustc_errors::Applicability::MachineApplicable, - ) - .emit(); - }); + self.tcx.emit_spanned_lint( + USELESS_DEPRECATED, + hir_id, + *span, + errors::DeprecatedAnnotationHasNoEffect { span: *span }, + ); } // `Deprecation` is just two pointers, no need to intern it diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 7785d29c15f..502ef67fc67 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -396,6 +396,7 @@ symbols! { assume_init, async_await, async_closure, + async_fn_in_trait, atomic, atomic_mod, atomics, diff --git a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs index 5413c4f33ff..1cb9ce40cb1 100644 --- a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs +++ b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs @@ -1,5 +1,5 @@ use crate::abi::Endian; -use crate::spec::{LinkerFlavor, RelroLevel, Target, TargetOptions}; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; pub fn target() -> Target { let mut base = super::linux_gnu_base::opts(); @@ -7,10 +7,6 @@ pub fn target() -> Target { base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); base.max_atomic_width = Some(64); - // ld.so in at least RHEL6 on ppc64 has a bug related to BIND_NOW, so only enable partial RELRO - // for now. https://github.com/rust-lang/rust/pull/43170#issuecomment-315411474 - base.relro_level = RelroLevel::Partial; - Target { llvm_target: "powerpc64-unknown-linux-gnu".into(), pointer_width: 64, diff --git a/compiler/rustc_typeck/src/check/writeback.rs b/compiler/rustc_typeck/src/check/writeback.rs index 9ecf34e9ad3..680dbf7037f 100644 --- a/compiler/rustc_typeck/src/check/writeback.rs +++ b/compiler/rustc_typeck/src/check/writeback.rs @@ -717,27 +717,13 @@ impl<'cx, 'tcx> Resolver<'cx, 'tcx> { Resolver { tcx: fcx.tcx, infcx: fcx, span, body, replaced_with_error: false } } - fn report_type_error(&self, t: Ty<'tcx>) { + fn report_error(&self, p: impl Into>) { if !self.tcx.sess.has_errors().is_some() { self.infcx .emit_inference_failure_err( Some(self.body.id()), self.span.to_span(self.tcx), - t.into(), - E0282, - false, - ) - .emit(); - } - } - - fn report_const_error(&self, c: ty::Const<'tcx>) { - if self.tcx.sess.has_errors().is_none() { - self.infcx - .emit_inference_failure_err( - Some(self.body.id()), - self.span.to_span(self.tcx), - c.into(), + p.into(), E0282, false, ) @@ -782,7 +768,7 @@ impl<'cx, 'tcx> TypeFolder<'tcx> for Resolver<'cx, 'tcx> { } Err(_) => { debug!("Resolver::fold_ty: input type `{:?}` not fully resolvable", t); - self.report_type_error(t); + self.report_error(t); self.replaced_with_error = true; self.tcx().ty_error() } @@ -799,7 +785,7 @@ impl<'cx, 'tcx> TypeFolder<'tcx> for Resolver<'cx, 'tcx> { Ok(ct) => self.tcx.erase_regions(ct), Err(_) => { debug!("Resolver::fold_const: input const `{:?}` not fully resolvable", ct); - self.report_const_error(ct); + self.report_error(ct); self.replaced_with_error = true; self.tcx().const_error(ct.ty()) } diff --git a/src/bootstrap/dist.rs b/src/bootstrap/dist.rs index 05664ca2179..b7bc96cc86d 100644 --- a/src/bootstrap/dist.rs +++ b/src/bootstrap/dist.rs @@ -86,29 +86,23 @@ impl Step for JsonDocs { fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { let default = run.builder.config.docs; - run.alias("rust-json-docs").default_condition(default) + run.alias("rust-docs-json").default_condition(default) } fn make_run(run: RunConfig<'_>) { run.builder.ensure(JsonDocs { host: run.target }); } - /// Builds the `rust-json-docs` installer component. + /// Builds the `rust-docs-json` installer component. fn run(self, builder: &Builder<'_>) -> Option { - // This prevents JSON docs from being built for "dist" or "install" - // on the stable/beta channels. The JSON format is not stable yet and - // should not be included in stable/beta toolchains. - if !builder.build.unstable_features() { - return None; - } - let host = self.host; builder.ensure(crate::doc::JsonStd { stage: builder.top_stage, target: host }); let dest = "share/doc/rust/json"; - let mut tarball = Tarball::new(builder, "rust-json-docs", &host.triple); + let mut tarball = Tarball::new(builder, "rust-docs-json", &host.triple); tarball.set_product_name("Rust Documentation In JSON Format"); + tarball.is_preview(true); tarball.add_bulk_dir(&builder.json_doc_out(host), dest); Some(tarball.generate()) } diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css index 4cf91bb00c6..3461d083c60 100644 --- a/src/librustdoc/html/static/css/rustdoc.css +++ b/src/librustdoc/html/static/css/rustdoc.css @@ -666,7 +666,6 @@ h2.location a { } .method > .code-header, .trait-impl > .code-header { - max-width: calc(100% - 41px); display: block; } diff --git a/src/test/rustdoc-gui/notable-trait.goml b/src/test/rustdoc-gui/notable-trait.goml index 69088a0774f..7eb00d825a5 100644 --- a/src/test/rustdoc-gui/notable-trait.goml +++ b/src/test/rustdoc-gui/notable-trait.goml @@ -83,7 +83,7 @@ assert-position: ( ) // Checking on very small mobile. The `i` should be on its own line. -size: (410, 600) +size: (365, 600) compare-elements-position-false: ( "//*[@id='method.create_an_iterator_from_read']//a[text()='NotableStructWithLongName']", "//*[@id='method.create_an_iterator_from_read']//*[@class='notable-traits']", diff --git a/src/test/ui/async-await/async-trait-fn.stderr b/src/test/ui/async-await/async-trait-fn.stderr index e5c584e31e8..4fa54c6e369 100644 --- a/src/test/ui/async-await/async-trait-fn.stderr +++ b/src/test/ui/async-await/async-trait-fn.stderr @@ -9,7 +9,7 @@ LL | async fn foo() {} = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0706]: functions in traits cannot be declared `async` --> $DIR/async-trait-fn.rs:5:5 @@ -22,7 +22,7 @@ LL | async fn bar(&self) {} = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0706]: functions in traits cannot be declared `async` --> $DIR/async-trait-fn.rs:7:5 @@ -35,7 +35,7 @@ LL | async fn baz() { = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0308]: mismatched types --> $DIR/async-trait-fn.rs:3:20 diff --git a/src/test/ui/async-await/edition-deny-async-fns-2015.stderr b/src/test/ui/async-await/edition-deny-async-fns-2015.stderr index 8c2902d9b00..62a243e69e7 100644 --- a/src/test/ui/async-await/edition-deny-async-fns-2015.stderr +++ b/src/test/ui/async-await/edition-deny-async-fns-2015.stderr @@ -90,7 +90,7 @@ LL | async fn foo() {} = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0308]: mismatched types --> $DIR/edition-deny-async-fns-2015.rs:18:20 diff --git a/src/test/ui/async-await/feature-gate-async_fn_in_trait.rs b/src/test/ui/async-await/feature-gate-async_fn_in_trait.rs new file mode 100644 index 00000000000..792f378cb57 --- /dev/null +++ b/src/test/ui/async-await/feature-gate-async_fn_in_trait.rs @@ -0,0 +1,25 @@ +// edition:2021 + +// RPITIT is not enough to allow use of async functions +#![allow(incomplete_features)] +#![feature(return_position_impl_trait_in_trait)] + +trait T { + async fn foo(); //~ ERROR functions in traits cannot be declared `async` +} + +// Both return_position_impl_trait_in_trait and async_fn_in_trait are required for this (see also +// feature-gate-return_position_impl_trait_in_trait.rs) +trait T2 { + async fn foo() -> impl Sized; //~ ERROR functions in traits cannot be declared `async` +} + +trait T3 { + fn foo() -> impl std::future::Future; +} + +impl T3 for () { + async fn foo() {} //~ ERROR functions in traits cannot be declared `async` +} + +fn main() {} diff --git a/src/test/ui/async-await/feature-gate-async_fn_in_trait.stderr b/src/test/ui/async-await/feature-gate-async_fn_in_trait.stderr new file mode 100644 index 00000000000..2a5fbd1ecd0 --- /dev/null +++ b/src/test/ui/async-await/feature-gate-async_fn_in_trait.stderr @@ -0,0 +1,42 @@ +error[E0706]: functions in traits cannot be declared `async` + --> $DIR/feature-gate-async_fn_in_trait.rs:8:5 + | +LL | async fn foo(); + | -----^^^^^^^^^^ + | | + | `async` because of this + | + = note: `async` trait functions are not currently supported + = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait + = note: see issue #91611 for more information + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable + +error[E0706]: functions in traits cannot be declared `async` + --> $DIR/feature-gate-async_fn_in_trait.rs:14:5 + | +LL | async fn foo() -> impl Sized; + | -----^^^^^^^^^^^^^^^^^^^^^^^^ + | | + | `async` because of this + | + = note: `async` trait functions are not currently supported + = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait + = note: see issue #91611 for more information + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable + +error[E0706]: functions in traits cannot be declared `async` + --> $DIR/feature-gate-async_fn_in_trait.rs:22:5 + | +LL | async fn foo() {} + | -----^^^^^^^^^ + | | + | `async` because of this + | + = note: `async` trait functions are not currently supported + = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait + = note: see issue #91611 for more information + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0706`. diff --git a/src/test/ui/async-await/issues/issue-95307.stderr b/src/test/ui/async-await/issues/issue-95307.stderr index 1c12f1e4862..a497cebe3c3 100644 --- a/src/test/ui/async-await/issues/issue-95307.stderr +++ b/src/test/ui/async-await/issues/issue-95307.stderr @@ -9,7 +9,7 @@ LL | async fn new() -> [u8; _]; = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error: in expressions, `_` can only be used on the left-hand side of an assignment --> $DIR/issue-95307.rs:7:28 diff --git a/src/test/ui/feature-gates/feature-gate-return_position_impl_trait_in_trait.rs b/src/test/ui/feature-gates/feature-gate-return_position_impl_trait_in_trait.rs index de7966c66b0..637765fff11 100644 --- a/src/test/ui/feature-gates/feature-gate-return_position_impl_trait_in_trait.rs +++ b/src/test/ui/feature-gates/feature-gate-return_position_impl_trait_in_trait.rs @@ -1,5 +1,18 @@ +// edition:2021 + +// async_fn_in_trait is not enough to allow use of RPITIT +#![allow(incomplete_features)] +#![feature(async_fn_in_trait)] + trait Foo { fn bar() -> impl Sized; //~ ERROR `impl Trait` only allowed in function and inherent method return types, not in trait method return + fn baz() -> Box; //~ ERROR `impl Trait` only allowed in function and inherent method return types, not in trait method return +} + +// Both return_position_impl_trait_in_trait and async_fn_in_trait are required for this (see also +// feature-gate-async_fn_in_trait.rs) +trait AsyncFoo { + async fn bar() -> impl Sized; //~ ERROR `impl Trait` only allowed in function and inherent method return types, not in trait method return } fn main() {} diff --git a/src/test/ui/feature-gates/feature-gate-return_position_impl_trait_in_trait.stderr b/src/test/ui/feature-gates/feature-gate-return_position_impl_trait_in_trait.stderr index 36177bbe158..aeabed4a6ab 100644 --- a/src/test/ui/feature-gates/feature-gate-return_position_impl_trait_in_trait.stderr +++ b/src/test/ui/feature-gates/feature-gate-return_position_impl_trait_in_trait.stderr @@ -1,5 +1,5 @@ error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in trait method return - --> $DIR/feature-gate-return_position_impl_trait_in_trait.rs:2:17 + --> $DIR/feature-gate-return_position_impl_trait_in_trait.rs:8:17 | LL | fn bar() -> impl Sized; | ^^^^^^^^^^ @@ -7,6 +7,24 @@ LL | fn bar() -> impl Sized; = note: see issue #91611 for more information = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable -error: aborting due to previous error +error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in trait method return + --> $DIR/feature-gate-return_position_impl_trait_in_trait.rs:9:21 + | +LL | fn baz() -> Box; + | ^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #91611 for more information + = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + +error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in trait method return + --> $DIR/feature-gate-return_position_impl_trait_in_trait.rs:15:23 + | +LL | async fn bar() -> impl Sized; + | ^^^^^^^^^^ + | + = note: see issue #91611 for more information + = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + +error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0562`. diff --git a/src/test/ui/fully-qualified-type/fully-qualified-type-name2.stderr b/src/test/ui/fully-qualified-type/fully-qualified-type-name2.stderr index aed7f72c660..a8f23f81dea 100644 --- a/src/test/ui/fully-qualified-type/fully-qualified-type-name2.stderr +++ b/src/test/ui/fully-qualified-type/fully-qualified-type-name2.stderr @@ -5,6 +5,18 @@ LL | fn bar(x: x::Foo) -> y::Foo { | ------ expected `y::Foo` because of return type LL | return x; | ^ expected enum `y::Foo`, found enum `x::Foo` + | + = note: enum `x::Foo` and enum `y::Foo` have similar names, but are actually distinct types +note: enum `x::Foo` is defined in module `crate::x` of the current crate + --> $DIR/fully-qualified-type-name2.rs:4:5 + | +LL | pub enum Foo { } + | ^^^^^^^^^^^^ +note: enum `y::Foo` is defined in module `crate::y` of the current crate + --> $DIR/fully-qualified-type-name2.rs:8:5 + | +LL | pub enum Foo { } + | ^^^^^^^^^^^^ error: aborting due to previous error diff --git a/src/test/ui/intrinsics/const-eval-select-backtrace-std.rs b/src/test/ui/intrinsics/const-eval-select-backtrace-std.rs index 29aefe07162..1164a3a5b01 100644 --- a/src/test/ui/intrinsics/const-eval-select-backtrace-std.rs +++ b/src/test/ui/intrinsics/const-eval-select-backtrace-std.rs @@ -1,6 +1,7 @@ // See issue #100696. // run-fail // check-run-results +// exec-env:RUST_BACKTRACE=0 fn main() { &""[1..]; } diff --git a/src/test/ui/intrinsics/const-eval-select-backtrace-std.run.stderr b/src/test/ui/intrinsics/const-eval-select-backtrace-std.run.stderr index e53e6034620..463cd52c5aa 100644 --- a/src/test/ui/intrinsics/const-eval-select-backtrace-std.run.stderr +++ b/src/test/ui/intrinsics/const-eval-select-backtrace-std.run.stderr @@ -1,2 +1,2 @@ -thread 'main' panicked at 'byte index 1 is out of bounds of ``', $DIR/const-eval-select-backtrace-std.rs:5:6 +thread 'main' panicked at 'byte index 1 is out of bounds of ``', $DIR/const-eval-select-backtrace-std.rs:6:6 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace diff --git a/src/test/ui/intrinsics/const-eval-select-backtrace.rs b/src/test/ui/intrinsics/const-eval-select-backtrace.rs index 99f0725200c..ef1c7c4195b 100644 --- a/src/test/ui/intrinsics/const-eval-select-backtrace.rs +++ b/src/test/ui/intrinsics/const-eval-select-backtrace.rs @@ -2,6 +2,7 @@ // See issue #100696. // run-fail // check-run-results +// exec-env:RUST_BACKTRACE=0 #[track_caller] fn uhoh() { diff --git a/src/test/ui/intrinsics/const-eval-select-backtrace.run.stderr b/src/test/ui/intrinsics/const-eval-select-backtrace.run.stderr index 2fd730ac7a6..54e28db5e53 100644 --- a/src/test/ui/intrinsics/const-eval-select-backtrace.run.stderr +++ b/src/test/ui/intrinsics/const-eval-select-backtrace.run.stderr @@ -1,2 +1,2 @@ -thread 'main' panicked at 'Aaah!', $DIR/const-eval-select-backtrace.rs:16:9 +thread 'main' panicked at 'Aaah!', $DIR/const-eval-select-backtrace.rs:17:9 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace diff --git a/src/test/ui/mismatched_types/show_module.rs b/src/test/ui/mismatched_types/show_module.rs new file mode 100644 index 00000000000..61550b88755 --- /dev/null +++ b/src/test/ui/mismatched_types/show_module.rs @@ -0,0 +1,18 @@ +pub mod blah { + pub mod baz { + pub struct Foo; + } +} + +pub mod meh { + pub struct Foo; +} + +pub type Foo = blah::baz::Foo; + +fn foo() -> Foo { + meh::Foo + //~^ ERROR mismatched types [E0308] +} + +fn main() {} diff --git a/src/test/ui/mismatched_types/show_module.stderr b/src/test/ui/mismatched_types/show_module.stderr new file mode 100644 index 00000000000..5e48e0955aa --- /dev/null +++ b/src/test/ui/mismatched_types/show_module.stderr @@ -0,0 +1,23 @@ +error[E0308]: mismatched types + --> $DIR/show_module.rs:14:5 + | +LL | fn foo() -> Foo { + | --- expected `baz::Foo` because of return type +LL | meh::Foo + | ^^^^^^^^ expected struct `baz::Foo`, found struct `meh::Foo` + | + = note: struct `meh::Foo` and struct `baz::Foo` have similar names, but are actually distinct types +note: struct `meh::Foo` is defined in module `crate::meh` of the current crate + --> $DIR/show_module.rs:8:5 + | +LL | pub struct Foo; + | ^^^^^^^^^^^^^^ +note: struct `baz::Foo` is defined in module `crate::blah::baz` of the current crate + --> $DIR/show_module.rs:3:9 + | +LL | pub struct Foo; + | ^^^^^^^^^^^^^^ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/mismatched_types/similar_paths.rs b/src/test/ui/mismatched_types/similar_paths.rs new file mode 100644 index 00000000000..4b9157f39bf --- /dev/null +++ b/src/test/ui/mismatched_types/similar_paths.rs @@ -0,0 +1,11 @@ +enum Option { + Some(T), + None, +} + +pub fn foo() -> Option { + Some(42_u8) + //~^ ERROR mismatched types [E0308] +} + +fn main() {} diff --git a/src/test/ui/mismatched_types/similar_paths.stderr b/src/test/ui/mismatched_types/similar_paths.stderr new file mode 100644 index 00000000000..e65ae58d4ce --- /dev/null +++ b/src/test/ui/mismatched_types/similar_paths.stderr @@ -0,0 +1,23 @@ +error[E0308]: mismatched types + --> $DIR/similar_paths.rs:7:5 + | +LL | pub fn foo() -> Option { + | ---------- expected `Option` because of return type +LL | Some(42_u8) + | ^^^^^^^^^^^ expected enum `Option`, found enum `std::option::Option` + | + = note: enum `std::option::Option` and enum `Option` have similar names, but are actually distinct types +note: enum `std::option::Option` is defined in crate `core` + --> $SRC_DIR/core/src/option.rs:LL:COL + | +LL | pub enum Option { + | ^^^^^^^^^^^^^^^^^^ +note: enum `Option` is defined in the current crate + --> $DIR/similar_paths.rs:1:1 + | +LL | enum Option { + | ^^^^^^^^^^^^^^ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/mismatched_types/similar_paths_primitive.rs b/src/test/ui/mismatched_types/similar_paths_primitive.rs new file mode 100644 index 00000000000..8f5b7cce469 --- /dev/null +++ b/src/test/ui/mismatched_types/similar_paths_primitive.rs @@ -0,0 +1,10 @@ +#![allow(non_camel_case_types)] + +struct bool; + +fn foo(_: bool) {} + +fn main() { + foo(true); + //~^ ERROR mismatched types [E0308] +} diff --git a/src/test/ui/mismatched_types/similar_paths_primitive.stderr b/src/test/ui/mismatched_types/similar_paths_primitive.stderr new file mode 100644 index 00000000000..8a2f73945e8 --- /dev/null +++ b/src/test/ui/mismatched_types/similar_paths_primitive.stderr @@ -0,0 +1,24 @@ +error[E0308]: mismatched types + --> $DIR/similar_paths_primitive.rs:8:9 + | +LL | foo(true); + | --- ^^^^ expected struct `bool`, found `bool` + | | + | arguments to this function are incorrect + | + = note: bool and struct `bool` have similar names, but are actually distinct types + = note: bool is a primitive defined by the language +note: struct `bool` is defined in the current crate + --> $DIR/similar_paths_primitive.rs:3:1 + | +LL | struct bool; + | ^^^^^^^^^^^ +note: function defined here + --> $DIR/similar_paths_primitive.rs:5:4 + | +LL | fn foo(_: bool) {} + | ^^^ ------- + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/parser/fn-header-semantic-fail.stderr b/src/test/ui/parser/fn-header-semantic-fail.stderr index 36304779df3..800b5a43a00 100644 --- a/src/test/ui/parser/fn-header-semantic-fail.stderr +++ b/src/test/ui/parser/fn-header-semantic-fail.stderr @@ -147,7 +147,7 @@ LL | async fn ft1(); = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0706]: functions in traits cannot be declared `async` --> $DIR/fn-header-semantic-fail.rs:21:9 @@ -160,7 +160,7 @@ LL | const async unsafe extern "C" fn ft5(); = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0706]: functions in traits cannot be declared `async` --> $DIR/fn-header-semantic-fail.rs:29:9 @@ -173,7 +173,7 @@ LL | async fn ft1() {} = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0706]: functions in traits cannot be declared `async` --> $DIR/fn-header-semantic-fail.rs:33:9 @@ -186,7 +186,7 @@ LL | const async unsafe extern "C" fn ft5() {} = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0391]: cycle detected when computing type of `main::ff5::{opaque#0}` --> $DIR/fn-header-semantic-fail.rs:12:44 diff --git a/src/test/ui/resolve/issue-70736-async-fn-no-body-def-collector.stderr b/src/test/ui/resolve/issue-70736-async-fn-no-body-def-collector.stderr index 55c3b66f136..1354abb4f14 100644 --- a/src/test/ui/resolve/issue-70736-async-fn-no-body-def-collector.stderr +++ b/src/test/ui/resolve/issue-70736-async-fn-no-body-def-collector.stderr @@ -33,7 +33,7 @@ LL | async fn associated(); = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0706]: functions in traits cannot be declared `async` --> $DIR/issue-70736-async-fn-no-body-def-collector.rs:15:5 @@ -46,7 +46,7 @@ LL | async fn associated(); = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error: aborting due to 5 previous errors diff --git a/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.stderr b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.stderr index 3814c568e72..2c1fa7b36b6 100644 --- a/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.stderr +++ b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.stderr @@ -51,7 +51,7 @@ LL | trait C{async fn new(val: T) {} = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable warning: changes to closure capture in Rust 2021 will affect drop order --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs:6:57 diff --git a/src/test/ui/type/type-mismatch-same-crate-name.stderr b/src/test/ui/type/type-mismatch-same-crate-name.stderr index 783f747fa6d..fcafd315ebf 100644 --- a/src/test/ui/type/type-mismatch-same-crate-name.stderr +++ b/src/test/ui/type/type-mismatch-same-crate-name.stderr @@ -6,6 +6,17 @@ LL | a::try_foo(foo2); | | | arguments to this function are incorrect | + = note: struct `main::a::Foo` and struct `main::a::Foo` have similar names, but are actually distinct types +note: struct `main::a::Foo` is defined in crate `crate_a2` + --> $DIR/auxiliary/crate_a2.rs:1:1 + | +LL | pub struct Foo; + | ^^^^^^^^^^^^^^ +note: struct `main::a::Foo` is defined in crate `crate_a1` + --> $DIR/auxiliary/crate_a1.rs:1:1 + | +LL | pub struct Foo; + | ^^^^^^^^^^^^^^ = note: perhaps two different versions of crate `crate_a1` are being used? note: function defined here --> $DIR/auxiliary/crate_a1.rs:10:8 diff --git a/src/tools/build-manifest/src/main.rs b/src/tools/build-manifest/src/main.rs index affc3e6db19..14311cff5c8 100644 --- a/src/tools/build-manifest/src/main.rs +++ b/src/tools/build-manifest/src/main.rs @@ -184,7 +184,7 @@ static PKG_INSTALLERS: &[&str] = &["x86_64-apple-darwin", "aarch64-apple-darwin" static MINGW: &[&str] = &["i686-pc-windows-gnu", "x86_64-pc-windows-gnu"]; -static NIGHTLY_ONLY_COMPONENTS: &[&str] = &["miri-preview"]; +static NIGHTLY_ONLY_COMPONENTS: &[&str] = &["miri-preview", "rust-docs-json-preview"]; macro_rules! t { ($e:expr) => { @@ -294,6 +294,7 @@ impl Builder { package!("rust-mingw", MINGW); package!("rust-std", TARGETS); self.package("rust-docs", &mut manifest.pkg, HOSTS, DOCS_FALLBACK); + self.package("rust-docs-json-preview", &mut manifest.pkg, HOSTS, DOCS_FALLBACK); package!("rust-src", &["*"]); package!("rls-preview", HOSTS); package!("rust-analyzer-preview", HOSTS); @@ -379,6 +380,7 @@ impl Builder { rename("rustfmt", "rustfmt-preview"); rename("clippy", "clippy-preview"); rename("miri", "miri-preview"); + rename("rust-docs-json", "rust-docs-json-preview"); rename("rust-analyzer", "rust-analyzer-preview"); } @@ -435,6 +437,7 @@ impl Builder { host_component("rustfmt-preview"), host_component("llvm-tools-preview"), host_component("rust-analysis"), + host_component("rust-docs-json"), ]); extensions.extend(