diff --git a/compiler/rustc_ast_lowering/messages.ftl b/compiler/rustc_ast_lowering/messages.ftl index a23e714ef017e..73001c9990c8b 100644 --- a/compiler/rustc_ast_lowering/messages.ftl +++ b/compiler/rustc_ast_lowering/messages.ftl @@ -163,3 +163,6 @@ ast_lowering_underscore_expr_lhs_assign = .label = `_` not allowed here ast_lowering_use_angle_brackets = use angle brackets instead +ast_lowering_yield_in_closure = + `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + .suggestion = use `#[coroutine]` to make this closure a coroutine diff --git a/compiler/rustc_ast_lowering/src/errors.rs b/compiler/rustc_ast_lowering/src/errors.rs index 6799513a323c4..6f70e135c72ac 100644 --- a/compiler/rustc_ast_lowering/src/errors.rs +++ b/compiler/rustc_ast_lowering/src/errors.rs @@ -421,3 +421,12 @@ pub(crate) struct NoPreciseCapturesOnApit { #[primary_span] pub span: Span, } + +#[derive(Diagnostic)] +#[diag(ast_lowering_yield_in_closure)] +pub(crate) struct YieldInClosure { + #[primary_span] + pub span: Span, + #[suggestion(code = "#[coroutine] ", applicability = "maybe-incorrect", style = "verbose")] + pub suggestion: Option, +} diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs index 2305cc07795db..5cc05d7336eed 100644 --- a/compiler/rustc_ast_lowering/src/expr.rs +++ b/compiler/rustc_ast_lowering/src/expr.rs @@ -8,6 +8,7 @@ use super::errors::{ }; use super::ResolverAstLoweringExt; use super::{ImplTraitContext, LoweringContext, ParamMode, ParenthesizedGenericArgs}; +use crate::errors::YieldInClosure; use crate::{FnDeclKind, ImplTraitPosition}; use rustc_ast::ptr::P as AstP; use rustc_ast::*; @@ -217,6 +218,7 @@ impl<'hir> LoweringContext<'_, 'hir> { binder, *capture_clause, e.id, + hir_id, *constness, *movability, fn_decl, @@ -955,6 +957,7 @@ impl<'hir> LoweringContext<'_, 'hir> { binder: &ClosureBinder, capture_clause: CaptureBy, closure_id: NodeId, + closure_hir_id: hir::HirId, constness: Const, movability: Movability, decl: &FnDecl, @@ -965,8 +968,17 @@ impl<'hir> LoweringContext<'_, 'hir> { let (binder_clause, generic_params) = self.lower_closure_binder(binder); let (body_id, closure_kind) = self.with_new_scopes(fn_decl_span, move |this| { - let mut coroutine_kind = None; + let mut coroutine_kind = if this + .attrs + .get(&closure_hir_id.local_id) + .is_some_and(|attrs| attrs.iter().any(|attr| attr.has_name(sym::coroutine))) + { + Some(hir::CoroutineKind::Coroutine(Movability::Movable)) + } else { + None + }; let body_id = this.lower_fn_body(decl, |this| { + this.coroutine_kind = coroutine_kind; let e = this.lower_expr_mut(body); coroutine_kind = this.coroutine_kind; e @@ -1565,7 +1577,10 @@ impl<'hir> LoweringContext<'_, 'hir> { ) .emit(); } + let suggestion = self.current_item.map(|s| s.shrink_to_lo()); + self.dcx().emit_err(YieldInClosure { span, suggestion }); self.coroutine_kind = Some(hir::CoroutineKind::Coroutine(Movability::Movable)); + false } }; diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index e4c633aa324a8..1d52b4107d7b5 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -203,7 +203,7 @@ impl<'hir> LoweringContext<'_, 'hir> { body, .. }) => { - self.with_new_scopes(ident.span, |this| { + self.with_new_scopes(*fn_sig_span, |this| { // Note: we don't need to change the return type from `T` to // `impl Future` here because lower_body // only cares about the input argument patterns in the function diff --git a/compiler/rustc_codegen_cranelift/example/polymorphize_coroutine.rs b/compiler/rustc_codegen_cranelift/example/polymorphize_coroutine.rs index c965b34e13b90..407da94c0f092 100644 --- a/compiler/rustc_codegen_cranelift/example/polymorphize_coroutine.rs +++ b/compiler/rustc_codegen_cranelift/example/polymorphize_coroutine.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; @@ -8,7 +8,8 @@ fn main() { } fn run_coroutine() { - let mut coroutine = || { + let mut coroutine = #[coroutine] + || { yield; return; }; diff --git a/compiler/rustc_codegen_cranelift/example/std_example.rs b/compiler/rustc_codegen_cranelift/example/std_example.rs index 0205de5562287..90d4ab721daef 100644 --- a/compiler/rustc_codegen_cranelift/example/std_example.rs +++ b/compiler/rustc_codegen_cranelift/example/std_example.rs @@ -1,6 +1,7 @@ #![feature( core_intrinsics, coroutines, + stmt_expr_attributes, coroutine_trait, is_sorted, repr_simd, @@ -123,9 +124,12 @@ fn main() { test_simd(); } - Box::pin(move |mut _task_context| { - yield (); - }) + Box::pin( + #[coroutine] + move |mut _task_context| { + yield (); + }, + ) .as_mut() .resume(0); diff --git a/compiler/rustc_codegen_gcc/example/std_example.rs b/compiler/rustc_codegen_gcc/example/std_example.rs index ad69409eb6590..8ab8fcc525e5c 100644 --- a/compiler/rustc_codegen_gcc/example/std_example.rs +++ b/compiler/rustc_codegen_gcc/example/std_example.rs @@ -1,5 +1,5 @@ #![allow(internal_features)] -#![feature(core_intrinsics, coroutines, coroutine_trait, is_sorted)] +#![feature(core_intrinsics, coroutines, coroutine_trait, is_sorted, stmt_expr_attributes)] #[cfg(feature="master")] #[cfg(target_arch="x86_64")] @@ -103,7 +103,7 @@ fn main() { test_simd(); } - Box::pin(move |mut _task_context| { + Box::pin(#[coroutine] move |mut _task_context| { yield (); }).as_mut().resume(0); diff --git a/compiler/rustc_error_codes/src/error_codes/E0626.md b/compiler/rustc_error_codes/src/error_codes/E0626.md index e2534415d8307..28d543350ffd8 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0626.md +++ b/compiler/rustc_error_codes/src/error_codes/E0626.md @@ -4,10 +4,10 @@ yield point. Erroneous code example: ```compile_fail,E0626 -# #![feature(coroutines, coroutine_trait, pin)] +# #![feature(coroutines, coroutine_trait, stmt_expr_attributes)] # use std::ops::Coroutine; # use std::pin::Pin; -let mut b = || { +let mut b = #[coroutine] || { let a = &String::new(); // <-- This borrow... yield (); // ...is still in scope here, when the yield occurs. println!("{}", a); @@ -23,10 +23,10 @@ resolve the previous example by removing the borrow and just storing the integer by value: ``` -# #![feature(coroutines, coroutine_trait, pin)] +# #![feature(coroutines, coroutine_trait, stmt_expr_attributes)] # use std::ops::Coroutine; # use std::pin::Pin; -let mut b = || { +let mut b = #[coroutine] || { let a = 3; yield (); println!("{}", a); @@ -41,10 +41,10 @@ in those cases, something like the `Rc` or `Arc` types may be useful. This error also frequently arises with iteration: ```compile_fail,E0626 -# #![feature(coroutines, coroutine_trait, pin)] +# #![feature(coroutines, coroutine_trait, stmt_expr_attributes)] # use std::ops::Coroutine; # use std::pin::Pin; -let mut b = || { +let mut b = #[coroutine] || { let v = vec![1,2,3]; for &x in &v { // <-- borrow of `v` is still in scope... yield x; // ...when this yield occurs. @@ -57,10 +57,10 @@ Such cases can sometimes be resolved by iterating "by value" (or using `into_iter()`) to avoid borrowing: ``` -# #![feature(coroutines, coroutine_trait, pin)] +# #![feature(coroutines, coroutine_trait, stmt_expr_attributes)] # use std::ops::Coroutine; # use std::pin::Pin; -let mut b = || { +let mut b = #[coroutine] || { let v = vec![1,2,3]; for x in v { // <-- Take ownership of the values instead! yield x; // <-- Now yield is OK. @@ -72,10 +72,10 @@ Pin::new(&mut b).resume(()); If taking ownership is not an option, using indices can work too: ``` -# #![feature(coroutines, coroutine_trait, pin)] +# #![feature(coroutines, coroutine_trait, stmt_expr_attributes)] # use std::ops::Coroutine; # use std::pin::Pin; -let mut b = || { +let mut b = #[coroutine] || { let v = vec![1,2,3]; let len = v.len(); // (*) for i in 0..len { diff --git a/compiler/rustc_error_codes/src/error_codes/E0627.md b/compiler/rustc_error_codes/src/error_codes/E0627.md index 5d366f78fc575..da2e2d355a160 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0627.md +++ b/compiler/rustc_error_codes/src/error_codes/E0627.md @@ -3,7 +3,7 @@ A yield expression was used outside of the coroutine literal. Erroneous code example: ```compile_fail,E0627 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] fn fake_coroutine() -> &'static str { yield 1; @@ -19,10 +19,10 @@ The error occurs because keyword `yield` can only be used inside the coroutine literal. This can be fixed by constructing the coroutine correctly. ``` -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] fn main() { - let mut coroutine = || { + let mut coroutine = #[coroutine] || { yield 1; return "foo" }; diff --git a/compiler/rustc_error_codes/src/error_codes/E0628.md b/compiler/rustc_error_codes/src/error_codes/E0628.md index ce19bcd56cc78..d0d387cf6c7ef 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0628.md +++ b/compiler/rustc_error_codes/src/error_codes/E0628.md @@ -3,10 +3,10 @@ More than one parameter was used for a coroutine. Erroneous code example: ```compile_fail,E0628 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] fn main() { - let coroutine = |a: i32, b: i32| { + let coroutine = #[coroutine] |a: i32, b: i32| { // error: too many parameters for a coroutine // Allowed only 0 or 1 parameter yield a; @@ -20,10 +20,10 @@ at most 1 parameter for the coroutine. For example, we might resolve the previous example by passing only one parameter. ``` -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] fn main() { - let coroutine = |a: i32| { + let coroutine = #[coroutine] |a: i32| { yield a; }; } diff --git a/compiler/rustc_error_codes/src/error_codes/E0727.md b/compiler/rustc_error_codes/src/error_codes/E0727.md index fde35885c9208..7754186508f11 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0727.md +++ b/compiler/rustc_error_codes/src/error_codes/E0727.md @@ -3,10 +3,10 @@ A `yield` clause was used in an `async` context. Erroneous code example: ```compile_fail,E0727,edition2018 -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn main() { - let coroutine = || { + let coroutine = #[coroutine] || { async { yield; } @@ -20,10 +20,10 @@ which is not yet supported. To fix this error, you have to move `yield` out of the `async` block: ```edition2018 -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn main() { - let coroutine = || { + let coroutine = #[coroutine] || { yield; }; } diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs index 23b3f31b43704..647cd8d06f26c 100644 --- a/compiler/rustc_feature/src/builtin_attrs.rs +++ b/compiler/rustc_feature/src/builtin_attrs.rs @@ -534,6 +534,12 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[ EncodeCrossCrate::Yes, experimental!(cfi_encoding) ), + // `#[coroutine]` attribute to be applied to closures to make them coroutines instead + gated!( + coroutine, Normal, template!(Word), ErrorFollowing, + EncodeCrossCrate::No, coroutines, experimental!(coroutines) + ), + // ========================================================================== // Internal attributes: Stability, deprecation, and unsafe: // ========================================================================== diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index c4ab4eb2657d6..fd42c9c1faaf1 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -1260,30 +1260,34 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { id: DefIndex, sess: &'a Session, ) -> impl Iterator + 'a { - iter::from_coroutine(move || { - if let Some(data) = &self.root.proc_macro_data { - // If we are loading as a proc macro, we want to return - // the view of this crate as a proc macro crate. - if id == CRATE_DEF_INDEX { - for child_index in data.macros.decode(self) { + iter::from_coroutine( + #[cfg_attr(not(bootstrap), coroutine)] + move || { + if let Some(data) = &self.root.proc_macro_data { + // If we are loading as a proc macro, we want to return + // the view of this crate as a proc macro crate. + if id == CRATE_DEF_INDEX { + for child_index in data.macros.decode(self) { + yield self.get_mod_child(child_index, sess); + } + } + } else { + // Iterate over all children. + let non_reexports = + self.root.tables.module_children_non_reexports.get(self, id); + for child_index in non_reexports.unwrap().decode(self) { yield self.get_mod_child(child_index, sess); } - } - } else { - // Iterate over all children. - let non_reexports = self.root.tables.module_children_non_reexports.get(self, id); - for child_index in non_reexports.unwrap().decode(self) { - yield self.get_mod_child(child_index, sess); - } - let reexports = self.root.tables.module_children_reexports.get(self, id); - if !reexports.is_default() { - for reexport in reexports.decode((self, sess)) { - yield reexport; + let reexports = self.root.tables.module_children_reexports.get(self, id); + if !reexports.is_default() { + for reexport in reexports.decode((self, sess)) { + yield reexport; + } } } - } - }) + }, + ) } fn is_ctfe_mir_available(self, id: DefIndex) -> bool { diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs index aadaca18326ca..80762e3e5c1b7 100644 --- a/compiler/rustc_middle/src/lib.rs +++ b/compiler/rustc_middle/src/lib.rs @@ -35,6 +35,7 @@ #![feature(const_type_name)] #![feature(discriminant_kind)] #![feature(coroutines)] +#![feature(stmt_expr_attributes)] #![feature(if_let_guard)] #![feature(inline_const)] #![feature(iter_from_coroutine)] diff --git a/compiler/rustc_middle/src/ty/closure.rs b/compiler/rustc_middle/src/ty/closure.rs index 11167515b7ca0..b66c664e6ae1d 100644 --- a/compiler/rustc_middle/src/ty/closure.rs +++ b/compiler/rustc_middle/src/ty/closure.rs @@ -422,49 +422,53 @@ pub fn analyze_coroutine_closure_captures<'a, 'tcx: 'a, T>( child_captures: impl IntoIterator>, mut for_each: impl FnMut((usize, &'a CapturedPlace<'tcx>), (usize, &'a CapturedPlace<'tcx>)) -> T, ) -> impl Iterator + Captures<'a> + Captures<'tcx> { - std::iter::from_coroutine(move || { - let mut child_captures = child_captures.into_iter().enumerate().peekable(); - - // One parent capture may correspond to several child captures if we end up - // refining the set of captures via edition-2021 precise captures. We want to - // match up any number of child captures with one parent capture, so we keep - // peeking off this `Peekable` until the child doesn't match anymore. - for (parent_field_idx, parent_capture) in parent_captures.into_iter().enumerate() { - // Make sure we use every field at least once, b/c why are we capturing something - // if it's not used in the inner coroutine. - let mut field_used_at_least_once = false; - - // A parent matches a child if they share the same prefix of projections. - // The child may have more, if it is capturing sub-fields out of - // something that is captured by-move in the parent closure. - while child_captures.peek().map_or(false, |(_, child_capture)| { - child_prefix_matches_parent_projections(parent_capture, child_capture) - }) { - let (child_field_idx, child_capture) = child_captures.next().unwrap(); - // This analysis only makes sense if the parent capture is a - // prefix of the child capture. - assert!( - child_capture.place.projections.len() >= parent_capture.place.projections.len(), - "parent capture ({parent_capture:#?}) expected to be prefix of \ + std::iter::from_coroutine( + #[cfg_attr(not(bootstrap), coroutine)] + move || { + let mut child_captures = child_captures.into_iter().enumerate().peekable(); + + // One parent capture may correspond to several child captures if we end up + // refining the set of captures via edition-2021 precise captures. We want to + // match up any number of child captures with one parent capture, so we keep + // peeking off this `Peekable` until the child doesn't match anymore. + for (parent_field_idx, parent_capture) in parent_captures.into_iter().enumerate() { + // Make sure we use every field at least once, b/c why are we capturing something + // if it's not used in the inner coroutine. + let mut field_used_at_least_once = false; + + // A parent matches a child if they share the same prefix of projections. + // The child may have more, if it is capturing sub-fields out of + // something that is captured by-move in the parent closure. + while child_captures.peek().map_or(false, |(_, child_capture)| { + child_prefix_matches_parent_projections(parent_capture, child_capture) + }) { + let (child_field_idx, child_capture) = child_captures.next().unwrap(); + // This analysis only makes sense if the parent capture is a + // prefix of the child capture. + assert!( + child_capture.place.projections.len() + >= parent_capture.place.projections.len(), + "parent capture ({parent_capture:#?}) expected to be prefix of \ child capture ({child_capture:#?})" - ); + ); - yield for_each( - (parent_field_idx, parent_capture), - (child_field_idx, child_capture), - ); + yield for_each( + (parent_field_idx, parent_capture), + (child_field_idx, child_capture), + ); - field_used_at_least_once = true; - } + field_used_at_least_once = true; + } - // Make sure the field was used at least once. - assert!( - field_used_at_least_once, - "we captured {parent_capture:#?} but it was not used in the child coroutine?" - ); - } - assert_eq!(child_captures.next(), None, "leftover child captures?"); - }) + // Make sure the field was used at least once. + assert!( + field_used_at_least_once, + "we captured {parent_capture:#?} but it was not used in the child coroutine?" + ); + } + assert_eq!(child_captures.next(), None, "leftover child captures?"); + }, + ) } fn child_prefix_matches_parent_projections( diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 7dbe59e132d7d..45fa5e8f7ca38 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -1284,20 +1284,23 @@ impl<'tcx> TyCtxt<'tcx> { self.dep_graph.read_index(DepNodeIndex::FOREVER_RED_NODE); let definitions = &self.untracked.definitions; - std::iter::from_coroutine(|| { - let mut i = 0; - - // Recompute the number of definitions each time, because our caller may be creating - // new ones. - while i < { definitions.read().num_definitions() } { - let local_def_index = rustc_span::def_id::DefIndex::from_usize(i); - yield LocalDefId { local_def_index }; - i += 1; - } + std::iter::from_coroutine( + #[cfg_attr(not(bootstrap), coroutine)] + || { + let mut i = 0; + + // Recompute the number of definitions each time, because our caller may be creating + // new ones. + while i < { definitions.read().num_definitions() } { + let local_def_index = rustc_span::def_id::DefIndex::from_usize(i); + yield LocalDefId { local_def_index }; + i += 1; + } - // Freeze definitions once we finish iterating on them, to prevent adding new ones. - definitions.freeze(); - }) + // Freeze definitions once we finish iterating on them, to prevent adding new ones. + definitions.freeze(); + }, + ) } pub fn def_path_table(self) -> &'tcx rustc_hir::definitions::DefPathTable { diff --git a/compiler/rustc_type_ir/src/ty_kind.rs b/compiler/rustc_type_ir/src/ty_kind.rs index 397e104512fd7..d7de0dd3bbf8f 100644 --- a/compiler/rustc_type_ir/src/ty_kind.rs +++ b/compiler/rustc_type_ir/src/ty_kind.rs @@ -183,7 +183,7 @@ pub enum TyKind { /// /// ``` /// #![feature(coroutines)] - /// static |a| { + /// #[coroutine] static |a| { /// let x = &vec![3]; /// yield a; /// yield x[0]; diff --git a/library/core/src/iter/sources/from_coroutine.rs b/library/core/src/iter/sources/from_coroutine.rs index bf413b24d4177..9bac9037a024b 100644 --- a/library/core/src/iter/sources/from_coroutine.rs +++ b/library/core/src/iter/sources/from_coroutine.rs @@ -14,7 +14,7 @@ use crate::pin::Pin; /// #![feature(coroutines)] /// #![feature(iter_from_coroutine)] /// -/// let it = std::iter::from_coroutine(|| { +/// let it = std::iter::from_coroutine(#[cfg_attr(not(bootstrap), coroutine)] || { /// yield 1; /// yield 2; /// yield 3; diff --git a/library/core/src/ops/coroutine.rs b/library/core/src/ops/coroutine.rs index 6e067f95da92d..5250be15fe43a 100644 --- a/library/core/src/ops/coroutine.rs +++ b/library/core/src/ops/coroutine.rs @@ -40,12 +40,13 @@ pub enum CoroutineState { /// ```rust /// #![feature(coroutines)] /// #![feature(coroutine_trait)] +/// #![feature(stmt_expr_attributes)] /// /// use std::ops::{Coroutine, CoroutineState}; /// use std::pin::Pin; /// /// fn main() { -/// let mut coroutine = || { +/// let mut coroutine = #[cfg_attr(not(bootstrap), coroutine)] || { /// yield 1; /// "foo" /// }; diff --git a/library/core/src/pin.rs b/library/core/src/pin.rs index efd525aeb3b74..a11c6c742d7dc 100644 --- a/library/core/src/pin.rs +++ b/library/core/src/pin.rs @@ -1809,7 +1809,7 @@ impl DispatchFromDyn> for Pin where Ptr: DispatchFromDyn /// fn coroutine_fn() -> impl Coroutine /* not Unpin */ { /// // Allow coroutine to be self-referential (not `Unpin`) /// // vvvvvv so that locals can cross yield points. -/// static || { +/// #[cfg_attr(not(bootstrap), coroutine)] static || { /// let foo = String::from("foo"); /// let foo_ref = &foo; // ------+ /// yield 0; // | <- crosses yield point! diff --git a/src/doc/unstable-book/src/language-features/coroutines.md b/src/doc/unstable-book/src/language-features/coroutines.md index f8e5a22fbd5c8..9fb07594650f4 100644 --- a/src/doc/unstable-book/src/language-features/coroutines.md +++ b/src/doc/unstable-book/src/language-features/coroutines.md @@ -26,13 +26,13 @@ tweaks to the overall design. A syntactical example of a coroutine is: ```rust -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; fn main() { - let mut coroutine = || { + let mut coroutine = #[coroutine] || { yield 1; return "foo" }; @@ -48,7 +48,8 @@ fn main() { } ``` -Coroutines are closure-like literals which can contain a `yield` statement. The +Coroutines are closure-like literals which are annotated with `#[coroutine]` +and can contain a `yield` statement. The `yield` statement takes an optional expression of a value to yield out of the coroutine. All coroutine literals implement the `Coroutine` trait in the `std::ops` module. The `Coroutine` trait has one main method, `resume`, which @@ -58,13 +59,13 @@ An example of the control flow of coroutines is that the following example prints all numbers in order: ```rust -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; fn main() { - let mut coroutine = || { + let mut coroutine = #[coroutine] || { println!("2"); yield; println!("4"); @@ -78,9 +79,9 @@ fn main() { } ``` -At this time the main intended use case of coroutines is an implementation -primitive for async/await syntax, but coroutines will likely be extended to -ergonomic implementations of iterators and other primitives in the future. +At this time the main use case of coroutines is an implementation +primitive for `async`/`await` and `gen` syntax, but coroutines +will likely be extended to other primitives in the future. Feedback on the design and usage is always appreciated! ### The `Coroutine` trait @@ -163,14 +164,14 @@ which point all state is saved off in the coroutine and a value is returned. Let's take a look at an example to see what's going on here: ```rust -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; fn main() { let ret = "foo"; - let mut coroutine = move || { + let mut coroutine = #[coroutine] move || { yield 1; return ret }; @@ -183,7 +184,7 @@ fn main() { This coroutine literal will compile down to something similar to: ```rust -#![feature(arbitrary_self_types, coroutines, coroutine_trait)] +#![feature(arbitrary_self_types, coroutine_trait)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; diff --git a/src/doc/unstable-book/src/the-unstable-book.md b/src/doc/unstable-book/src/the-unstable-book.md index 0f4fb405669a1..63134f7ae28c4 100644 --- a/src/doc/unstable-book/src/the-unstable-book.md +++ b/src/doc/unstable-book/src/the-unstable-book.md @@ -5,13 +5,13 @@ each one organized by a "feature flag." That is, when using an unstable feature of Rust, you must use a flag, like this: ```rust -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; fn main() { - let mut coroutine = || { + let mut coroutine = #[coroutine] || { yield 1; return "foo" }; diff --git a/src/tools/clippy/tests/ui/crashes/ice-5238.rs b/src/tools/clippy/tests/ui/crashes/ice-5238.rs index b1fc3fb9d2511..fe03a39ad1ba8 100644 --- a/src/tools/clippy/tests/ui/crashes/ice-5238.rs +++ b/src/tools/clippy/tests/ui/crashes/ice-5238.rs @@ -1,9 +1,9 @@ // Regression test for #5238 / https://github.com/rust-lang/rust/pull/69562 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] fn main() { - let _ = || { + let _ = #[coroutine] || { yield; }; } diff --git a/src/tools/clippy/tests/ui/large_futures.fixed b/src/tools/clippy/tests/ui/large_futures.fixed index aa8c3021b9708..1e87859f45263 100644 --- a/src/tools/clippy/tests/ui/large_futures.fixed +++ b/src/tools/clippy/tests/ui/large_futures.fixed @@ -1,4 +1,3 @@ -#![feature(coroutines)] #![warn(clippy::large_futures)] #![allow(clippy::never_loop)] #![allow(clippy::future_not_send)] diff --git a/src/tools/clippy/tests/ui/large_futures.rs b/src/tools/clippy/tests/ui/large_futures.rs index fc6ea458d3dbd..3f4ea2ebf8bbe 100644 --- a/src/tools/clippy/tests/ui/large_futures.rs +++ b/src/tools/clippy/tests/ui/large_futures.rs @@ -1,4 +1,3 @@ -#![feature(coroutines)] #![warn(clippy::large_futures)] #![allow(clippy::never_loop)] #![allow(clippy::future_not_send)] diff --git a/src/tools/clippy/tests/ui/large_futures.stderr b/src/tools/clippy/tests/ui/large_futures.stderr index 5709c7b77a0a5..00082e579c597 100644 --- a/src/tools/clippy/tests/ui/large_futures.stderr +++ b/src/tools/clippy/tests/ui/large_futures.stderr @@ -1,5 +1,5 @@ error: large future with a size of 16385 bytes - --> tests/ui/large_futures.rs:11:9 + --> tests/ui/large_futures.rs:10:9 | LL | big_fut([0u8; 1024 * 16]).await; | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider `Box::pin` on it: `Box::pin(big_fut([0u8; 1024 * 16]))` @@ -8,37 +8,37 @@ LL | big_fut([0u8; 1024 * 16]).await; = help: to override `-D warnings` add `#[allow(clippy::large_futures)]` error: large future with a size of 16386 bytes - --> tests/ui/large_futures.rs:15:5 + --> tests/ui/large_futures.rs:14:5 | LL | f.await | ^ help: consider `Box::pin` on it: `Box::pin(f)` error: large future with a size of 16387 bytes - --> tests/ui/large_futures.rs:20:9 + --> tests/ui/large_futures.rs:19:9 | LL | wait().await; | ^^^^^^ help: consider `Box::pin` on it: `Box::pin(wait())` error: large future with a size of 16387 bytes - --> tests/ui/large_futures.rs:25:13 + --> tests/ui/large_futures.rs:24:13 | LL | wait().await; | ^^^^^^ help: consider `Box::pin` on it: `Box::pin(wait())` error: large future with a size of 65540 bytes - --> tests/ui/large_futures.rs:33:5 + --> tests/ui/large_futures.rs:32:5 | LL | foo().await; | ^^^^^ help: consider `Box::pin` on it: `Box::pin(foo())` error: large future with a size of 49159 bytes - --> tests/ui/large_futures.rs:35:5 + --> tests/ui/large_futures.rs:34:5 | LL | calls_fut(fut).await; | ^^^^^^^^^^^^^^ help: consider `Box::pin` on it: `Box::pin(calls_fut(fut))` error: large future with a size of 65540 bytes - --> tests/ui/large_futures.rs:48:5 + --> tests/ui/large_futures.rs:47:5 | LL | / async { LL | | @@ -59,7 +59,7 @@ LL + }) | error: large future with a size of 65540 bytes - --> tests/ui/large_futures.rs:60:13 + --> tests/ui/large_futures.rs:59:13 | LL | / async { LL | | let x = [0i32; 1024 * 16]; diff --git a/src/tools/clippy/tests/ui/redundant_locals.rs b/src/tools/clippy/tests/ui/redundant_locals.rs index f6909828aa9a7..e9d77182a9196 100644 --- a/src/tools/clippy/tests/ui/redundant_locals.rs +++ b/src/tools/clippy/tests/ui/redundant_locals.rs @@ -1,7 +1,7 @@ //@aux-build:proc_macros.rs #![allow(unused, clippy::no_effect, clippy::needless_pass_by_ref_mut)] #![warn(clippy::redundant_locals)] -#![feature(async_closure, coroutines)] +#![feature(async_closure, coroutines, stmt_expr_attributes)] extern crate proc_macros; use proc_macros::{external, with_span}; @@ -191,11 +191,11 @@ fn issue12225() { let v4 = v4; dbg!(&v4); }); - assert_static(static || { + assert_static(#[coroutine] static || { let v5 = v5; yield; }); - assert_static(|| { + assert_static(#[coroutine] || { let v6 = v6; yield; }); diff --git a/src/tools/miri/tests/fail/coroutine-pinned-moved.rs b/src/tools/miri/tests/fail/coroutine-pinned-moved.rs index 005ae7e91323c..8648be2a2641a 100644 --- a/src/tools/miri/tests/fail/coroutine-pinned-moved.rs +++ b/src/tools/miri/tests/fail/coroutine-pinned-moved.rs @@ -1,5 +1,5 @@ //@compile-flags: -Zmiri-disable-validation -Zmiri-disable-stacked-borrows -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::{ ops::{Coroutine, CoroutineState}, @@ -7,7 +7,7 @@ use std::{ }; fn firstn() -> impl Coroutine { - static move || { + #[coroutine] static move || { let mut num = 0; let num = &mut num; *num += 0; diff --git a/src/tools/miri/tests/pass/coroutine.rs b/src/tools/miri/tests/pass/coroutine.rs index 7e1f64df04d4c..e76abfc4185de 100644 --- a/src/tools/miri/tests/pass/coroutine.rs +++ b/src/tools/miri/tests/pass/coroutine.rs @@ -1,6 +1,6 @@ //@revisions: stack tree //@[tree]compile-flags: -Zmiri-tree-borrows -#![feature(coroutines, coroutine_trait, never_type)] +#![feature(coroutines, coroutine_trait, never_type, stmt_expr_attributes)] use std::fmt::Debug; use std::mem::ManuallyDrop; @@ -43,9 +43,9 @@ fn basic() { panic!() } - finish(1, false, || yield 1); + finish(1, false, #[coroutine] || yield 1); - finish(3, false, || { + finish(3, false, #[coroutine] || { let mut x = 0; yield 1; x += 1; @@ -55,27 +55,27 @@ fn basic() { assert_eq!(x, 2); }); - finish(7 * 8 / 2, false, || { + finish(7 * 8 / 2, false, #[coroutine] || { for i in 0..8 { yield i; } }); - finish(1, false, || { + finish(1, false, #[coroutine] || { if true { yield 1; } else { } }); - finish(1, false, || { + finish(1, false, #[coroutine] || { if false { } else { yield 1; } }); - finish(2, false, || { + finish(2, false, #[coroutine] || { if { yield 1; false @@ -88,7 +88,7 @@ fn basic() { // also test self-referential coroutines assert_eq!( - finish(5, true, static || { + finish(5, true, #[coroutine] static || { let mut x = 5; let y = &mut x; *y = 5; @@ -99,7 +99,7 @@ fn basic() { 10 ); assert_eq!( - finish(5, true, || { + finish(5, true, #[coroutine] || { let mut x = Box::new(5); let y = &mut *x; *y = 5; @@ -111,7 +111,7 @@ fn basic() { ); let b = true; - finish(1, false, || { + finish(1, false, #[coroutine] || { yield 1; if b { return; @@ -123,7 +123,7 @@ fn basic() { drop(x); }); - finish(3, false, || { + finish(3, false, #[coroutine] || { yield 1; #[allow(unreachable_code)] let _x: (String, !) = (String::new(), { @@ -172,7 +172,7 @@ fn smoke_resume_arg() { } drain( - &mut |mut b| { + &mut #[coroutine] |mut b| { while b != 0 { b = yield (b + 1); } @@ -181,21 +181,21 @@ fn smoke_resume_arg() { vec![(1, Yielded(2)), (-45, Yielded(-44)), (500, Yielded(501)), (0, Complete(-1))], ); - expect_drops(2, || drain(&mut |a| yield a, vec![(DropMe, Yielded(DropMe))])); + expect_drops(2, || drain(&mut #[coroutine] |a| yield a, vec![(DropMe, Yielded(DropMe))])); expect_drops(6, || { drain( - &mut |a| yield yield a, + &mut #[coroutine] |a| yield yield a, vec![(DropMe, Yielded(DropMe)), (DropMe, Yielded(DropMe)), (DropMe, Complete(DropMe))], ) }); #[allow(unreachable_code)] - expect_drops(2, || drain(&mut |a| yield return a, vec![(DropMe, Complete(DropMe))])); + expect_drops(2, || drain(&mut #[coroutine] |a| yield return a, vec![(DropMe, Complete(DropMe))])); expect_drops(2, || { drain( - &mut |a: DropMe| { + &mut #[coroutine] |a: DropMe| { if false { yield () } else { a } }, vec![(DropMe, Complete(DropMe))], @@ -205,7 +205,7 @@ fn smoke_resume_arg() { expect_drops(4, || { drain( #[allow(unused_assignments, unused_variables)] - &mut |mut a: DropMe| { + &mut #[coroutine] |mut a: DropMe| { a = yield; a = yield; a = yield; @@ -228,7 +228,7 @@ fn uninit_fields() { } fn run(x: bool, y: bool) { - let mut c = || { + let mut c = #[coroutine] || { if x { let _a: T; if y { diff --git a/src/tools/miri/tests/pass/stacked-borrows/coroutine-self-referential.rs b/src/tools/miri/tests/pass/stacked-borrows/coroutine-self-referential.rs index c4b15c8758bef..bb98e024a0a1a 100644 --- a/src/tools/miri/tests/pass/stacked-borrows/coroutine-self-referential.rs +++ b/src/tools/miri/tests/pass/stacked-borrows/coroutine-self-referential.rs @@ -1,6 +1,6 @@ // See https://github.com/rust-lang/unsafe-code-guidelines/issues/148: // this fails when Stacked Borrows is strictly applied even to `!Unpin` types. -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::{ ops::{Coroutine, CoroutineState}, @@ -8,7 +8,7 @@ use std::{ }; fn firstn() -> impl Coroutine { - static move || { + #[coroutine] static move || { let mut num = 0; let num = &mut num; diff --git a/src/tools/miri/tests/pass/track-caller-attribute.rs b/src/tools/miri/tests/pass/track-caller-attribute.rs index d88bcc98858f5..c3803af3cc8ec 100644 --- a/src/tools/miri/tests/pass/track-caller-attribute.rs +++ b/src/tools/miri/tests/pass/track-caller-attribute.rs @@ -232,7 +232,7 @@ fn test_coroutine() { } #[rustfmt::skip] - let coroutine = #[track_caller] |arg: String| { + let coroutine = #[track_caller] #[coroutine] |arg: String| { yield ("first", arg.clone(), Location::caller()); yield ("second", arg.clone(), Location::caller()); }; @@ -255,7 +255,7 @@ fn test_coroutine() { assert_eq!(mono_loc.column(), 42); #[rustfmt::skip] - let non_tracked_coroutine = || { yield Location::caller(); }; + let non_tracked_coroutine = #[coroutine] || { yield Location::caller(); }; let non_tracked_line = line!() - 1; // This is the line of the coroutine, not its caller let non_tracked_loc = match Box::pin(non_tracked_coroutine).as_mut().resume(()) { CoroutineState::Yielded(val) => val, @@ -263,7 +263,7 @@ fn test_coroutine() { }; assert_eq!(non_tracked_loc.file(), file!()); assert_eq!(non_tracked_loc.line(), non_tracked_line); - assert_eq!(non_tracked_loc.column(), 44); + assert_eq!(non_tracked_loc.column(), 57); } fn main() { diff --git a/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs b/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs index d50088e6cf1d9..c92d4e78ffa71 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs @@ -3869,7 +3869,7 @@ use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; fn main() { - let mut coroutine = || { + let mut coroutine = #[coroutine] || { yield 1; return "foo" }; @@ -3901,7 +3901,7 @@ use std::ops::Coroutine; use std::pin::Pin; fn main() { - let mut coroutine = || { + let mut coroutine = #[coroutine] || { println!("2"); yield; println!("4"); @@ -4007,7 +4007,7 @@ use std::pin::Pin; fn main() { let ret = "foo"; - let mut coroutine = move || { + let mut coroutine = #[coroutine] move || { yield 1; return ret }; diff --git a/src/tools/rustfmt/tests/source/immovable_coroutines.rs b/src/tools/rustfmt/tests/source/immovable_coroutines.rs index 3b94af0c96ce4..539049577a00e 100644 --- a/src/tools/rustfmt/tests/source/immovable_coroutines.rs +++ b/src/tools/rustfmt/tests/source/immovable_coroutines.rs @@ -1,7 +1,8 @@ #![feature(coroutines)] unsafe fn foo() { - let mut ga = static || { + let mut ga = #[coroutine] + static || { yield 1; }; } diff --git a/src/tools/rustfmt/tests/target/immovable_coroutines.rs b/src/tools/rustfmt/tests/target/immovable_coroutines.rs index f52cfa00f9783..539049577a00e 100644 --- a/src/tools/rustfmt/tests/target/immovable_coroutines.rs +++ b/src/tools/rustfmt/tests/target/immovable_coroutines.rs @@ -1,7 +1,8 @@ #![feature(coroutines)] unsafe fn foo() { - let mut ga = static || { + let mut ga = #[coroutine] + static || { yield 1; }; } diff --git a/tests/codegen/coroutine-debug-msvc.rs b/tests/codegen/coroutine-debug-msvc.rs index fb1b46fe497f1..e2296db1d5945 100644 --- a/tests/codegen/coroutine-debug-msvc.rs +++ b/tests/codegen/coroutine-debug-msvc.rs @@ -11,7 +11,7 @@ use std::ops::Coroutine; fn coroutine_test() -> impl Coroutine { - || { + #[coroutine] || { yield 0; let s = String::from("foo"); yield 1; diff --git a/tests/codegen/coroutine-debug.rs b/tests/codegen/coroutine-debug.rs index 7eaee669559e4..914515f58b85c 100644 --- a/tests/codegen/coroutine-debug.rs +++ b/tests/codegen/coroutine-debug.rs @@ -11,7 +11,7 @@ use std::ops::Coroutine; fn coroutine_test() -> impl Coroutine { - || { + #[coroutine] || { yield 0; let s = String::from("foo"); yield 1; diff --git a/tests/coverage/coroutine.cov-map b/tests/coverage/coroutine.cov-map index ef9faab590b33..255708d365ee4 100644 --- a/tests/coverage/coroutine.cov-map +++ b/tests/coverage/coroutine.cov-map @@ -43,11 +43,11 @@ Number of file 0 mappings: 9 = ((c4 - c5) - c6) Function name: coroutine::main::{closure#0} -Raw bytes (14): 0x[01, 01, 00, 02, 01, 15, 1c, 01, 1f, 05, 02, 10, 01, 06] +Raw bytes (14): 0x[01, 01, 00, 02, 01, 15, 29, 01, 1f, 05, 02, 10, 01, 06] Number of files: 1 - file 0 => global file 1 Number of expressions: 0 Number of file 0 mappings: 2 -- Code(Counter(0)) at (prev + 21, 28) to (start + 1, 31) +- Code(Counter(0)) at (prev + 21, 41) to (start + 1, 31) - Code(Counter(1)) at (prev + 2, 16) to (start + 1, 6) diff --git a/tests/coverage/coroutine.coverage b/tests/coverage/coroutine.coverage index bd3d4e4688019..68b52d1983160 100644 --- a/tests/coverage/coroutine.coverage +++ b/tests/coverage/coroutine.coverage @@ -1,4 +1,4 @@ - LL| |#![feature(coroutines, coroutine_trait)] + LL| |#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] LL| | LL| |use std::ops::{Coroutine, CoroutineState}; LL| |use std::pin::Pin; @@ -18,7 +18,7 @@ LL| | LL| 1|fn main() { LL| 1| let is_true = std::env::args().len() == 1; - LL| 1| let mut coroutine = || { + LL| 1| let mut coroutine = #[coroutine] || { LL| 1| yield get_u32(is_true); LL| 1| return "foo"; LL| 1| }; diff --git a/tests/coverage/coroutine.rs b/tests/coverage/coroutine.rs index 2aa689466fc3e..7f72e0d8bd424 100644 --- a/tests/coverage/coroutine.rs +++ b/tests/coverage/coroutine.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; @@ -18,7 +18,7 @@ fn get_u32(val: bool) -> Result { fn main() { let is_true = std::env::args().len() == 1; - let mut coroutine = || { + let mut coroutine = #[coroutine] || { yield get_u32(is_true); return "foo"; }; diff --git a/tests/coverage/yield.cov-map b/tests/coverage/yield.cov-map index 9cc67dfe88ac4..0347aaaa36765 100644 --- a/tests/coverage/yield.cov-map +++ b/tests/coverage/yield.cov-map @@ -41,21 +41,21 @@ Number of file 0 mappings: 16 - Code(Counter(11)) at (prev + 2, 1) to (start + 0, 2) Function name: yield::main::{closure#0} -Raw bytes (14): 0x[01, 01, 00, 02, 01, 08, 1c, 01, 10, 05, 02, 10, 01, 06] +Raw bytes (14): 0x[01, 01, 00, 02, 01, 08, 29, 01, 10, 05, 02, 10, 01, 06] Number of files: 1 - file 0 => global file 1 Number of expressions: 0 Number of file 0 mappings: 2 -- Code(Counter(0)) at (prev + 8, 28) to (start + 1, 16) +- Code(Counter(0)) at (prev + 8, 41) to (start + 1, 16) - Code(Counter(1)) at (prev + 2, 16) to (start + 1, 6) Function name: yield::main::{closure#1} -Raw bytes (24): 0x[01, 01, 00, 04, 01, 16, 1c, 01, 10, 05, 02, 09, 00, 10, 09, 01, 09, 00, 10, 0d, 01, 10, 01, 06] +Raw bytes (24): 0x[01, 01, 00, 04, 01, 16, 29, 01, 10, 05, 02, 09, 00, 10, 09, 01, 09, 00, 10, 0d, 01, 10, 01, 06] Number of files: 1 - file 0 => global file 1 Number of expressions: 0 Number of file 0 mappings: 4 -- Code(Counter(0)) at (prev + 22, 28) to (start + 1, 16) +- Code(Counter(0)) at (prev + 22, 41) to (start + 1, 16) - Code(Counter(1)) at (prev + 2, 9) to (start + 0, 16) - Code(Counter(2)) at (prev + 1, 9) to (start + 0, 16) - Code(Counter(3)) at (prev + 1, 16) to (start + 1, 6) diff --git a/tests/coverage/yield.coverage b/tests/coverage/yield.coverage index d7e455f211e45..e2fc9196d2444 100644 --- a/tests/coverage/yield.coverage +++ b/tests/coverage/yield.coverage @@ -1,11 +1,11 @@ - LL| |#![feature(coroutines, coroutine_trait)] + LL| |#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] LL| |#![allow(unused_assignments)] LL| | LL| |use std::ops::{Coroutine, CoroutineState}; LL| |use std::pin::Pin; LL| | LL| 1|fn main() { - LL| 1| let mut coroutine = || { + LL| 1| let mut coroutine = #[coroutine] || { LL| 1| yield 1; LL| 1| return "foo"; LL| 1| }; @@ -19,7 +19,7 @@ LL| 0| _ => panic!("unexpected value from resume"), LL| | } LL| | - LL| 1| let mut coroutine = || { + LL| 1| let mut coroutine = #[coroutine] || { LL| 1| yield 1; LL| 1| yield 2; LL| 0| yield 3; diff --git a/tests/coverage/yield.rs b/tests/coverage/yield.rs index b7e2ba31b59c1..64ea27066047e 100644 --- a/tests/coverage/yield.rs +++ b/tests/coverage/yield.rs @@ -1,11 +1,11 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] #![allow(unused_assignments)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; fn main() { - let mut coroutine = || { + let mut coroutine = #[coroutine] || { yield 1; return "foo"; }; @@ -19,7 +19,7 @@ fn main() { _ => panic!("unexpected value from resume"), } - let mut coroutine = || { + let mut coroutine = #[coroutine] || { yield 1; yield 2; yield 3; diff --git a/tests/debuginfo/coroutine-locals.rs b/tests/debuginfo/coroutine-locals.rs index 54b5cd577c8b9..c019998040b93 100644 --- a/tests/debuginfo/coroutine-locals.rs +++ b/tests/debuginfo/coroutine-locals.rs @@ -46,7 +46,7 @@ // lldb-command:v c // lldb-check:(int) c = 6 -#![feature(omit_gdb_pretty_printer_section, coroutines, coroutine_trait)] +#![feature(omit_gdb_pretty_printer_section, coroutines, coroutine_trait, stmt_expr_attributes)] #![omit_gdb_pretty_printer_section] use std::ops::Coroutine; @@ -54,7 +54,8 @@ use std::pin::Pin; fn main() { let mut a = 5; - let mut b = || { + let mut b = #[coroutine] + || { let c = 6; // Live across multiple yield points let d = 7; // Live across only one yield point @@ -76,4 +77,6 @@ fn main() { _zzz(); // #break } -fn _zzz() {()} +fn _zzz() { + () +} diff --git a/tests/debuginfo/coroutine-objects.rs b/tests/debuginfo/coroutine-objects.rs index 9e1bd5d62e7a1..e13f20455a864 100644 --- a/tests/debuginfo/coroutine-objects.rs +++ b/tests/debuginfo/coroutine-objects.rs @@ -63,7 +63,7 @@ // cdb-check: b : Returned [Type: enum2$] // cdb-check: [+0x[...]] _ref__a : 0x[...] : 6 [Type: int *] -#![feature(omit_gdb_pretty_printer_section, coroutines, coroutine_trait)] +#![feature(omit_gdb_pretty_printer_section, coroutines, coroutine_trait, stmt_expr_attributes)] #![omit_gdb_pretty_printer_section] use std::ops::Coroutine; @@ -71,7 +71,8 @@ use std::pin::Pin; fn main() { let mut a = 5; - let mut b = || { + let mut b = #[coroutine] + || { let mut c = 6; let mut d = 7; diff --git a/tests/debuginfo/function-names.rs b/tests/debuginfo/function-names.rs index 1e4be43244554..2b0c2593676b4 100644 --- a/tests/debuginfo/function-names.rs +++ b/tests/debuginfo/function-names.rs @@ -83,7 +83,7 @@ #![allow(unused_variables)] #![feature(omit_gdb_pretty_printer_section)] #![omit_gdb_pretty_printer_section] -#![feature(adt_const_params, coroutines, coroutine_trait)] +#![feature(adt_const_params, coroutines, coroutine_trait, stmt_expr_attributes)] #![allow(incomplete_features)] use std::ops::Coroutine; @@ -111,7 +111,8 @@ fn main() { closure(); // Coroutine - let mut coroutine = || { + let mut coroutine = #[coroutine] + || { yield; return; }; diff --git a/tests/debuginfo/issue-57822.rs b/tests/debuginfo/issue-57822.rs index 93e1a2558f693..995779a6a9ca8 100644 --- a/tests/debuginfo/issue-57822.rs +++ b/tests/debuginfo/issue-57822.rs @@ -26,7 +26,7 @@ // lldb-command:v b // lldbg-check:(issue_57822::main::{coroutine_env#3}) b = -#![feature(omit_gdb_pretty_printer_section, coroutines, coroutine_trait)] +#![feature(omit_gdb_pretty_printer_section, coroutines, coroutine_trait, stmt_expr_attributes)] #![omit_gdb_pretty_printer_section] use std::ops::Coroutine; @@ -38,11 +38,13 @@ fn main() { let g = move || f(); let mut y = 2; - let mut a = move || { + let mut a = #[coroutine] + move || { y += 1; yield; }; - let mut b = move || { + let mut b = #[coroutine] + move || { Pin::new(&mut a).resume(()); yield; }; diff --git a/tests/mir-opt/coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-abort.mir b/tests/mir-opt/coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-abort.mir index 7214b01c60164..7e033916fd348 100644 --- a/tests/mir-opt/coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-abort.mir +++ b/tests/mir-opt/coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-abort.mir @@ -1,6 +1,6 @@ // MIR for `main::{closure#0}` 0 coroutine_drop -fn main::{closure#0}(_1: *mut {coroutine@$DIR/coroutine_drop_cleanup.rs:11:15: 11:17}) -> () { +fn main::{closure#0}(_1: *mut {coroutine@$DIR/coroutine_drop_cleanup.rs:12:5: 12:7}) -> () { let mut _0: (); let mut _2: (); let _3: std::string::String; diff --git a/tests/mir-opt/coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-unwind.mir b/tests/mir-opt/coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-unwind.mir index 00769a493b5a1..613ef2909b5e4 100644 --- a/tests/mir-opt/coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-unwind.mir +++ b/tests/mir-opt/coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-unwind.mir @@ -1,6 +1,6 @@ // MIR for `main::{closure#0}` 0 coroutine_drop -fn main::{closure#0}(_1: *mut {coroutine@$DIR/coroutine_drop_cleanup.rs:11:15: 11:17}) -> () { +fn main::{closure#0}(_1: *mut {coroutine@$DIR/coroutine_drop_cleanup.rs:12:5: 12:7}) -> () { let mut _0: (); let mut _2: (); let _3: std::string::String; diff --git a/tests/mir-opt/coroutine_drop_cleanup.rs b/tests/mir-opt/coroutine_drop_cleanup.rs index 69984c737fed6..33fdd2dd0d9cb 100644 --- a/tests/mir-opt/coroutine_drop_cleanup.rs +++ b/tests/mir-opt/coroutine_drop_cleanup.rs @@ -1,5 +1,5 @@ // skip-filecheck -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] // EMIT_MIR_FOR_EACH_PANIC_STRATEGY @@ -8,7 +8,8 @@ // EMIT_MIR coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.mir fn main() { - let gen = || { + let gen = #[coroutine] + || { let _s = String::new(); yield; }; diff --git a/tests/mir-opt/coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-abort.mir b/tests/mir-opt/coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-abort.mir index 8369a3e60dd9a..4731aed335d9f 100644 --- a/tests/mir-opt/coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-abort.mir +++ b/tests/mir-opt/coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-abort.mir @@ -1,6 +1,6 @@ // MIR for `main::{closure#0}` before StateTransform -fn main::{closure#0}(_1: {coroutine@$DIR/coroutine_storage_dead_unwind.rs:23:16: 23:18}, _2: ()) -> () +fn main::{closure#0}(_1: {coroutine@$DIR/coroutine_storage_dead_unwind.rs:24:5: 24:7}, _2: ()) -> () yields () { let mut _0: (); diff --git a/tests/mir-opt/coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-unwind.mir b/tests/mir-opt/coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-unwind.mir index 1773db1abffe3..14e1782b86016 100644 --- a/tests/mir-opt/coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-unwind.mir +++ b/tests/mir-opt/coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-unwind.mir @@ -1,6 +1,6 @@ // MIR for `main::{closure#0}` before StateTransform -fn main::{closure#0}(_1: {coroutine@$DIR/coroutine_storage_dead_unwind.rs:23:16: 23:18}, _2: ()) -> () +fn main::{closure#0}(_1: {coroutine@$DIR/coroutine_storage_dead_unwind.rs:24:5: 24:7}, _2: ()) -> () yields () { let mut _0: (); diff --git a/tests/mir-opt/coroutine_storage_dead_unwind.rs b/tests/mir-opt/coroutine_storage_dead_unwind.rs index 253be1ff698d1..ce9bad483af83 100644 --- a/tests/mir-opt/coroutine_storage_dead_unwind.rs +++ b/tests/mir-opt/coroutine_storage_dead_unwind.rs @@ -6,7 +6,7 @@ // Basic block and local names can safely change, but the StorageDead statements // should not go away. -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] struct Foo(i32); @@ -20,7 +20,8 @@ fn take(_x: T) {} // EMIT_MIR coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.mir fn main() { - let _gen = || { + let _gen = #[coroutine] + || { let a = Foo(5); let b = Bar(6); yield; diff --git a/tests/mir-opt/coroutine_tiny.main-{closure#0}.coroutine_resume.0.mir b/tests/mir-opt/coroutine_tiny.main-{closure#0}.coroutine_resume.0.mir index 165aa3a05cb7d..f8b3f68d21e63 100644 --- a/tests/mir-opt/coroutine_tiny.main-{closure#0}.coroutine_resume.0.mir +++ b/tests/mir-opt/coroutine_tiny.main-{closure#0}.coroutine_resume.0.mir @@ -4,7 +4,7 @@ _0: CoroutineSavedTy { ty: HasDrop, source_info: SourceInfo { - span: $DIR/coroutine_tiny.rs:21:13: 21:15 (#0), + span: $DIR/coroutine_tiny.rs:22:13: 22:15 (#0), scope: scope[0], }, ignore_for_traits: false, @@ -21,7 +21,7 @@ }, } */ -fn main::{closure#0}(_1: Pin<&mut {coroutine@$DIR/coroutine_tiny.rs:20:16: 20:24}>, _2: u8) -> CoroutineState<(), ()> { +fn main::{closure#0}(_1: Pin<&mut {coroutine@$DIR/coroutine_tiny.rs:21:5: 21:13}>, _2: u8) -> CoroutineState<(), ()> { debug _x => _10; let mut _0: std::ops::CoroutineState<(), ()>; let _3: HasDrop; @@ -34,18 +34,18 @@ fn main::{closure#0}(_1: Pin<&mut {coroutine@$DIR/coroutine_tiny.rs:20:16: 20:24 let _10: u8; let mut _11: u32; scope 1 { - debug _d => (((*(_1.0: &mut {coroutine@$DIR/coroutine_tiny.rs:20:16: 20:24})) as variant#3).0: HasDrop); + debug _d => (((*(_1.0: &mut {coroutine@$DIR/coroutine_tiny.rs:21:5: 21:13})) as variant#3).0: HasDrop); } bb0: { - _11 = discriminant((*(_1.0: &mut {coroutine@$DIR/coroutine_tiny.rs:20:16: 20:24}))); + _11 = discriminant((*(_1.0: &mut {coroutine@$DIR/coroutine_tiny.rs:21:5: 21:13}))); switchInt(move _11) -> [0: bb1, 3: bb5, otherwise: bb6]; } bb1: { _10 = move _2; nop; - (((*(_1.0: &mut {coroutine@$DIR/coroutine_tiny.rs:20:16: 20:24})) as variant#3).0: HasDrop) = HasDrop; + (((*(_1.0: &mut {coroutine@$DIR/coroutine_tiny.rs:21:5: 21:13})) as variant#3).0: HasDrop) = HasDrop; StorageLive(_4); goto -> bb2; } @@ -58,7 +58,7 @@ fn main::{closure#0}(_1: Pin<&mut {coroutine@$DIR/coroutine_tiny.rs:20:16: 20:24 StorageDead(_4); StorageDead(_6); StorageDead(_7); - discriminant((*(_1.0: &mut {coroutine@$DIR/coroutine_tiny.rs:20:16: 20:24}))) = 3; + discriminant((*(_1.0: &mut {coroutine@$DIR/coroutine_tiny.rs:21:5: 21:13}))) = 3; return; } diff --git a/tests/mir-opt/coroutine_tiny.rs b/tests/mir-opt/coroutine_tiny.rs index 9728425f2326e..81e9940541ba0 100644 --- a/tests/mir-opt/coroutine_tiny.rs +++ b/tests/mir-opt/coroutine_tiny.rs @@ -5,7 +5,7 @@ //@ compile-flags: -C panic=abort //@ no-prefer-dynamic -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] struct HasDrop; @@ -17,7 +17,8 @@ fn callee() {} // EMIT_MIR coroutine_tiny.main-{closure#0}.coroutine_resume.0.mir fn main() { - let _gen = |_x: u8| { + let _gen = #[coroutine] + |_x: u8| { let _d = HasDrop; loop { yield; diff --git a/tests/mir-opt/inline/inline_coroutine.main.Inline.panic-abort.diff b/tests/mir-opt/inline/inline_coroutine.main.Inline.panic-abort.diff index 859082c311190..07031a298bc36 100644 --- a/tests/mir-opt/inline/inline_coroutine.main.Inline.panic-abort.diff +++ b/tests/mir-opt/inline/inline_coroutine.main.Inline.panic-abort.diff @@ -4,24 +4,24 @@ fn main() -> () { let mut _0: (); let _1: std::ops::CoroutineState; - let mut _2: std::pin::Pin<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}>; - let mut _3: &mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}; - let mut _4: {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}; + let mut _2: std::pin::Pin<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}>; + let mut _3: &mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}; + let mut _4: {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}; + let mut _5: bool; scope 1 { debug _r => _1; } + scope 2 (inlined g) { + } -+ scope 3 (inlined Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}>::new) { ++ scope 3 (inlined Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}>::new) { + debug pointer => _3; -+ scope 4 (inlined Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}>::new_unchecked) { ++ scope 4 (inlined Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}>::new_unchecked) { + debug pointer => _3; + } + } + scope 5 (inlined g::{closure#0}) { + debug a => _5; -+ let mut _6: &mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}; ++ let mut _6: &mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}; + let mut _7: u32; + let mut _8: i32; + } @@ -32,22 +32,22 @@ StorageLive(_3); StorageLive(_4); - _4 = g() -> [return: bb1, unwind unreachable]; -+ _4 = {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8 (#0)}; ++ _4 = {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8 (#0)}; + _3 = &mut _4; -+ _2 = Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}> { __pointer: _3 }; ++ _2 = Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}> { __pointer: _3 }; + StorageDead(_3); + StorageLive(_5); + _5 = const false; + StorageLive(_6); + StorageLive(_7); -+ _6 = (_2.0: &mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}); ++ _6 = (_2.0: &mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}); + _7 = discriminant((*_6)); + switchInt(move _7) -> [0: bb3, 1: bb7, 3: bb8, otherwise: bb9]; } bb1: { - _3 = &mut _4; -- _2 = Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}>::new(move _3) -> [return: bb2, unwind unreachable]; +- _2 = Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}>::new(move _3) -> [return: bb2, unwind unreachable]; + StorageDead(_4); + _0 = const (); + StorageDead(_1); @@ -56,7 +56,7 @@ bb2: { - StorageDead(_3); -- _1 = <{coroutine@$DIR/inline_coroutine.rs:19:5: 19:8} as Coroutine>::resume(move _2, const false) -> [return: bb3, unwind unreachable]; +- _1 = <{coroutine@$DIR/inline_coroutine.rs:20:5: 20:8} as Coroutine>::resume(move _2, const false) -> [return: bb3, unwind unreachable]; + StorageDead(_7); + StorageDead(_6); + StorageDead(_5); diff --git a/tests/mir-opt/inline/inline_coroutine.main.Inline.panic-unwind.diff b/tests/mir-opt/inline/inline_coroutine.main.Inline.panic-unwind.diff index 44b06c34972af..ab6c62b0baf56 100644 --- a/tests/mir-opt/inline/inline_coroutine.main.Inline.panic-unwind.diff +++ b/tests/mir-opt/inline/inline_coroutine.main.Inline.panic-unwind.diff @@ -4,24 +4,24 @@ fn main() -> () { let mut _0: (); let _1: std::ops::CoroutineState; - let mut _2: std::pin::Pin<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}>; - let mut _3: &mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}; - let mut _4: {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}; + let mut _2: std::pin::Pin<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}>; + let mut _3: &mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}; + let mut _4: {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}; + let mut _5: bool; scope 1 { debug _r => _1; } + scope 2 (inlined g) { + } -+ scope 3 (inlined Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}>::new) { ++ scope 3 (inlined Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}>::new) { + debug pointer => _3; -+ scope 4 (inlined Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}>::new_unchecked) { ++ scope 4 (inlined Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}>::new_unchecked) { + debug pointer => _3; + } + } + scope 5 (inlined g::{closure#0}) { + debug a => _5; -+ let mut _6: &mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}; ++ let mut _6: &mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}; + let mut _7: u32; + let mut _8: i32; + } @@ -32,22 +32,22 @@ StorageLive(_3); StorageLive(_4); - _4 = g() -> [return: bb1, unwind continue]; -+ _4 = {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8 (#0)}; ++ _4 = {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8 (#0)}; + _3 = &mut _4; -+ _2 = Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}> { __pointer: _3 }; ++ _2 = Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}> { __pointer: _3 }; + StorageDead(_3); + StorageLive(_5); + _5 = const false; + StorageLive(_6); + StorageLive(_7); -+ _6 = (_2.0: &mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}); ++ _6 = (_2.0: &mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}); + _7 = discriminant((*_6)); + switchInt(move _7) -> [0: bb5, 1: bb9, 3: bb10, otherwise: bb11]; } bb1: { - _3 = &mut _4; -- _2 = Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:19:5: 19:8}>::new(move _3) -> [return: bb2, unwind: bb5]; +- _2 = Pin::<&mut {coroutine@$DIR/inline_coroutine.rs:20:5: 20:8}>::new(move _3) -> [return: bb2, unwind: bb5]; + StorageDead(_4); + _0 = const (); + StorageDead(_1); @@ -56,7 +56,7 @@ - bb2: { - StorageDead(_3); -- _1 = <{coroutine@$DIR/inline_coroutine.rs:19:5: 19:8} as Coroutine>::resume(move _2, const false) -> [return: bb3, unwind: bb5]; +- _1 = <{coroutine@$DIR/inline_coroutine.rs:20:5: 20:8} as Coroutine>::resume(move _2, const false) -> [return: bb3, unwind: bb5]; + bb2 (cleanup): { + drop(_4) -> [return: bb3, unwind terminate(cleanup)]; } diff --git a/tests/mir-opt/inline/inline_coroutine.rs b/tests/mir-opt/inline/inline_coroutine.rs index 180f9d4a6fddd..07f8fb20f7ea2 100644 --- a/tests/mir-opt/inline/inline_coroutine.rs +++ b/tests/mir-opt/inline/inline_coroutine.rs @@ -16,5 +16,6 @@ fn main() { #[inline] pub fn g() -> impl Coroutine { #[inline] - |a| { yield if a { 7 } else { 13 } } + #[coroutine] + |a| yield if a { 7 } else { 13 } } diff --git a/tests/ui/async-await/async-outside-of-await-issue-121096.stderr b/tests/ui/async-await/async-outside-of-await-issue-121096.stderr index b0677a83864e0..d7caf6b3c0d21 100644 --- a/tests/ui/async-await/async-outside-of-await-issue-121096.stderr +++ b/tests/ui/async-await/async-outside-of-await-issue-121096.stderr @@ -2,7 +2,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/async-outside-of-await-issue-121096.rs:7:7 | LL | fn main() { - | ---- this is not `async` + | --------- this is not `async` ... LL | }.await | ^^^^^ only allowed inside `async` functions and blocks diff --git a/tests/ui/async-await/await-keyword/incorrect-syntax-suggestions.stderr b/tests/ui/async-await/await-keyword/incorrect-syntax-suggestions.stderr index 928eb0b821db1..a98bb0764c0e6 100644 --- a/tests/ui/async-await/await-keyword/incorrect-syntax-suggestions.stderr +++ b/tests/ui/async-await/await-keyword/incorrect-syntax-suggestions.stderr @@ -141,7 +141,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/incorrect-syntax-suggestions.rs:68:19 | LL | fn foo13() -> Result<(), ()> { - | ----- this is not `async` + | ---------------------------- this is not `async` LL | let _ = bar().await(); | ^^^^^ only allowed inside `async` functions and blocks @@ -149,7 +149,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/incorrect-syntax-suggestions.rs:73:19 | LL | fn foo14() -> Result<(), ()> { - | ----- this is not `async` + | ---------------------------- this is not `async` LL | let _ = bar().await()?; | ^^^^^ only allowed inside `async` functions and blocks @@ -157,7 +157,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/incorrect-syntax-suggestions.rs:78:19 | LL | fn foo15() -> Result<(), ()> { - | ----- this is not `async` + | ---------------------------- this is not `async` LL | let _ = bar().await; | ^^^^^ only allowed inside `async` functions and blocks @@ -165,7 +165,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/incorrect-syntax-suggestions.rs:82:19 | LL | fn foo16() -> Result<(), ()> { - | ----- this is not `async` + | ---------------------------- this is not `async` LL | let _ = bar().await?; | ^^^^^ only allowed inside `async` functions and blocks @@ -173,7 +173,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/incorrect-syntax-suggestions.rs:87:23 | LL | fn foo() -> Result<(), ()> { - | --- this is not `async` + | -------------------------- this is not `async` LL | let _ = bar().await?; | ^^^^^ only allowed inside `async` functions and blocks diff --git a/tests/ui/async-await/coroutine-not-future.rs b/tests/ui/async-await/coroutine-not-future.rs index 2993f58378a44..4522743550785 100644 --- a/tests/ui/async-await/coroutine-not-future.rs +++ b/tests/ui/async-await/coroutine-not-future.rs @@ -1,5 +1,5 @@ //@ edition:2018 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::future::Future; use std::ops::Coroutine; @@ -9,6 +9,7 @@ fn returns_async_block() -> impl Future { async {} } fn returns_coroutine() -> impl Coroutine<(), Yield = (), Return = ()> { + #[coroutine] || { let _: () = yield (); } @@ -23,9 +24,12 @@ fn main() { takes_future(returns_async_block()); takes_future(async {}); takes_coroutine(returns_coroutine()); - takes_coroutine(|| { - let _: () = yield (); - }); + takes_coroutine( + #[coroutine] + || { + let _: () = yield (); + }, + ); // async futures are not coroutines: takes_coroutine(async_fn()); @@ -38,8 +42,11 @@ fn main() { // coroutines are not futures: takes_future(returns_coroutine()); //~^ ERROR is not a future - takes_future(|ctx| { - //~^ ERROR is not a future - ctx = yield (); - }); + takes_future( + #[coroutine] + |ctx| { + //~^ ERROR is not a future + ctx = yield (); + }, + ); } diff --git a/tests/ui/async-await/coroutine-not-future.stderr b/tests/ui/async-await/coroutine-not-future.stderr index 580217fb4f821..403e547a7538e 100644 --- a/tests/ui/async-await/coroutine-not-future.stderr +++ b/tests/ui/async-await/coroutine-not-future.stderr @@ -1,5 +1,5 @@ error[E0277]: the trait bound `impl Future: Coroutine<_>` is not satisfied - --> $DIR/coroutine-not-future.rs:31:21 + --> $DIR/coroutine-not-future.rs:35:21 | LL | takes_coroutine(async_fn()); | --------------- ^^^^^^^^^^ the trait `Coroutine<_>` is not implemented for `impl Future` @@ -7,13 +7,13 @@ LL | takes_coroutine(async_fn()); | required by a bound introduced by this call | note: required by a bound in `takes_coroutine` - --> $DIR/coroutine-not-future.rs:18:39 + --> $DIR/coroutine-not-future.rs:19:39 | LL | fn takes_coroutine(_g: impl Coroutine) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_coroutine` error[E0277]: the trait bound `impl Future: Coroutine<_>` is not satisfied - --> $DIR/coroutine-not-future.rs:33:21 + --> $DIR/coroutine-not-future.rs:37:21 | LL | takes_coroutine(returns_async_block()); | --------------- ^^^^^^^^^^^^^^^^^^^^^ the trait `Coroutine<_>` is not implemented for `impl Future` @@ -21,27 +21,27 @@ LL | takes_coroutine(returns_async_block()); | required by a bound introduced by this call | note: required by a bound in `takes_coroutine` - --> $DIR/coroutine-not-future.rs:18:39 + --> $DIR/coroutine-not-future.rs:19:39 | LL | fn takes_coroutine(_g: impl Coroutine) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_coroutine` -error[E0277]: the trait bound `{async block@$DIR/coroutine-not-future.rs:35:21: 35:29}: Coroutine<_>` is not satisfied - --> $DIR/coroutine-not-future.rs:35:21 +error[E0277]: the trait bound `{async block@$DIR/coroutine-not-future.rs:39:21: 39:29}: Coroutine<_>` is not satisfied + --> $DIR/coroutine-not-future.rs:39:21 | LL | takes_coroutine(async {}); - | --------------- ^^^^^^^^ the trait `Coroutine<_>` is not implemented for `{async block@$DIR/coroutine-not-future.rs:35:21: 35:29}` + | --------------- ^^^^^^^^ the trait `Coroutine<_>` is not implemented for `{async block@$DIR/coroutine-not-future.rs:39:21: 39:29}` | | | required by a bound introduced by this call | note: required by a bound in `takes_coroutine` - --> $DIR/coroutine-not-future.rs:18:39 + --> $DIR/coroutine-not-future.rs:19:39 | LL | fn takes_coroutine(_g: impl Coroutine) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_coroutine` error[E0277]: `impl Coroutine` is not a future - --> $DIR/coroutine-not-future.rs:39:18 + --> $DIR/coroutine-not-future.rs:43:18 | LL | takes_future(returns_coroutine()); | ------------ ^^^^^^^^^^^^^^^^^^^ `impl Coroutine` is not a future @@ -50,26 +50,26 @@ LL | takes_future(returns_coroutine()); | = help: the trait `Future` is not implemented for `impl Coroutine` note: required by a bound in `takes_future` - --> $DIR/coroutine-not-future.rs:17:26 + --> $DIR/coroutine-not-future.rs:18:26 | LL | fn takes_future(_f: impl Future) {} | ^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_future` -error[E0277]: `{coroutine@$DIR/coroutine-not-future.rs:41:18: 41:23}` is not a future - --> $DIR/coroutine-not-future.rs:41:18 +error[E0277]: `{coroutine@$DIR/coroutine-not-future.rs:47:9: 47:14}` is not a future + --> $DIR/coroutine-not-future.rs:47:9 | -LL | takes_future(|ctx| { - | _____------------_^ - | | | - | | required by a bound introduced by this call +LL | takes_future( + | ------------ required by a bound introduced by this call +LL | #[coroutine] +LL | / |ctx| { LL | | -LL | | ctx = yield (); -LL | | }); - | |_____^ `{coroutine@$DIR/coroutine-not-future.rs:41:18: 41:23}` is not a future +LL | | ctx = yield (); +LL | | }, + | |_________^ `{coroutine@$DIR/coroutine-not-future.rs:47:9: 47:14}` is not a future | - = help: the trait `Future` is not implemented for `{coroutine@$DIR/coroutine-not-future.rs:41:18: 41:23}` + = help: the trait `Future` is not implemented for `{coroutine@$DIR/coroutine-not-future.rs:47:9: 47:14}` note: required by a bound in `takes_future` - --> $DIR/coroutine-not-future.rs:17:26 + --> $DIR/coroutine-not-future.rs:18:26 | LL | fn takes_future(_f: impl Future) {} | ^^^^^^^^^^^^^^^^^^^ required by this bound in `takes_future` diff --git a/tests/ui/async-await/issues/issue-51751.stderr b/tests/ui/async-await/issues/issue-51751.stderr index ba256b19948c0..ab12e0427b47a 100644 --- a/tests/ui/async-await/issues/issue-51751.stderr +++ b/tests/ui/async-await/issues/issue-51751.stderr @@ -2,7 +2,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/issue-51751.rs:9:27 | LL | fn main() { - | ---- this is not `async` + | --------- this is not `async` LL | let result = inc(10000); LL | let finished = result.await; | ^^^^^ only allowed inside `async` functions and blocks diff --git a/tests/ui/async-await/issues/issue-62009-1.stderr b/tests/ui/async-await/issues/issue-62009-1.stderr index 02933f4f2f233..f8a4b5d9af8b2 100644 --- a/tests/ui/async-await/issues/issue-62009-1.stderr +++ b/tests/ui/async-await/issues/issue-62009-1.stderr @@ -2,7 +2,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/issue-62009-1.rs:6:23 | LL | fn main() { - | ---- this is not `async` + | --------- this is not `async` LL | async { let (); }.await; | ^^^^^ only allowed inside `async` functions and blocks @@ -10,7 +10,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/issue-62009-1.rs:10:7 | LL | fn main() { - | ---- this is not `async` + | --------- this is not `async` ... LL | }.await; | ^^^^^ only allowed inside `async` functions and blocks @@ -19,7 +19,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/issue-62009-1.rs:12:16 | LL | fn main() { - | ---- this is not `async` + | --------- this is not `async` ... LL | (|_| 2333).await; | ^^^^^ only allowed inside `async` functions and blocks diff --git a/tests/ui/async-await/issues/issue-62009-2.stderr b/tests/ui/async-await/issues/issue-62009-2.stderr index 80a831cc5475f..0004f99f9018d 100644 --- a/tests/ui/async-await/issues/issue-62009-2.stderr +++ b/tests/ui/async-await/issues/issue-62009-2.stderr @@ -2,7 +2,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/issue-62009-2.rs:8:23 | LL | fn main() { - | ---- this is not `async` + | --------- this is not `async` LL | (async || 2333)().await; | ^^^^^ only allowed inside `async` functions and blocks diff --git a/tests/ui/async-await/issues/issue-65419/issue-65419-coroutine-resume-after-completion.rs b/tests/ui/async-await/issues/issue-65419/issue-65419-coroutine-resume-after-completion.rs index f937311a5a0f7..6b7dfc1235e8e 100644 --- a/tests/ui/async-await/issues/issue-65419/issue-65419-coroutine-resume-after-completion.rs +++ b/tests/ui/async-await/issues/issue-65419/issue-65419-coroutine-resume-after-completion.rs @@ -6,15 +6,13 @@ //@ error-pattern:coroutine resumed after completion //@ edition:2018 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] -use std::{ - ops::Coroutine, - pin::Pin, -}; +use std::{ops::Coroutine, pin::Pin}; fn main() { - let mut g = || { + let mut g = #[coroutine] + || { yield; }; Pin::new(&mut g).resume(()); // Yields once. diff --git a/tests/ui/async-await/issues/non-async-enclosing-span.stderr b/tests/ui/async-await/issues/non-async-enclosing-span.stderr index 91a9e5aa6cabf..9c26de1c5047c 100644 --- a/tests/ui/async-await/issues/non-async-enclosing-span.stderr +++ b/tests/ui/async-await/issues/non-async-enclosing-span.stderr @@ -2,7 +2,7 @@ error[E0728]: `await` is only allowed inside `async` functions and blocks --> $DIR/non-async-enclosing-span.rs:9:28 | LL | fn main() { - | ---- this is not `async` + | --------- this is not `async` LL | let x = move || {}; LL | let y = do_the_thing().await; | ^^^^^ only allowed inside `async` functions and blocks diff --git a/tests/ui/async-await/non-trivial-drop.rs b/tests/ui/async-await/non-trivial-drop.rs index 71b8812421972..95de3c5b0054d 100644 --- a/tests/ui/async-await/non-trivial-drop.rs +++ b/tests/ui/async-await/non-trivial-drop.rs @@ -8,7 +8,7 @@ fn main() { } fn foo() { - || { + #[coroutine] || { yield drop(Config { nickname: NonCopy, b: NonCopy2, diff --git a/tests/ui/coherence/coherence-with-coroutine.rs b/tests/ui/coherence/coherence-with-coroutine.rs index 1ba9834467265..6b0617e950b7d 100644 --- a/tests/ui/coherence/coherence-with-coroutine.rs +++ b/tests/ui/coherence/coherence-with-coroutine.rs @@ -8,6 +8,7 @@ type OpaqueCoroutine = impl Sized; fn defining_use() -> OpaqueCoroutine { + #[coroutine] || { for i in 0..10 { yield i; diff --git a/tests/ui/coherence/coherence-with-coroutine.stock.stderr b/tests/ui/coherence/coherence-with-coroutine.stock.stderr index 9cf20ea493649..5f58b3088f14d 100644 --- a/tests/ui/coherence/coherence-with-coroutine.stock.stderr +++ b/tests/ui/coherence/coherence-with-coroutine.stock.stderr @@ -1,5 +1,5 @@ error[E0119]: conflicting implementations of trait `Trait` for type `Wrapper` - --> $DIR/coherence-with-coroutine.rs:21:1 + --> $DIR/coherence-with-coroutine.rs:22:1 | LL | impl Trait for Wrapper {} | --------------------------------------- first implementation here diff --git a/tests/ui/coroutine/addassign-yield.rs b/tests/ui/coroutine/addassign-yield.rs index 8718e73512f71..8329b53d715e6 100644 --- a/tests/ui/coroutine/addassign-yield.rs +++ b/tests/ui/coroutine/addassign-yield.rs @@ -5,21 +5,21 @@ // is being used), we were failing to account for all types that might // possibly be live across a yield point. -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn foo() { - let _x = static || { + let _x = #[coroutine] static || { let mut s = String::new(); s += { yield; "" }; }; - let _y = static || { + let _y = #[coroutine] static || { let x = &mut 0; *{ yield; x } += match String::new() { _ => 0 }; }; // Please don't ever actually write something like this - let _z = static || { + let _z = #[coroutine] static || { let x = &mut 0; *{ let inner = &mut 1; diff --git a/tests/ui/coroutine/auto-trait-regions.rs b/tests/ui/coroutine/auto-trait-regions.rs index 5fce70e8e54d2..4c239f9ee76cf 100644 --- a/tests/ui/coroutine/auto-trait-regions.rs +++ b/tests/ui/coroutine/auto-trait-regions.rs @@ -1,4 +1,4 @@ -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![feature(auto_traits)] #![feature(negative_impls)] @@ -23,7 +23,7 @@ fn assert_foo(f: T) {} fn main() { // Make sure 'static is erased for coroutine interiors so we can't match it in trait selection let x: &'static _ = &OnlyFooIfStaticRef(No); - let gen = move || { + let gen = #[coroutine] move || { let x = x; yield; assert_foo(x); @@ -33,7 +33,7 @@ fn main() { // Allow impls which matches any lifetime let x = &OnlyFooIfRef(No); - let gen = move || { + let gen = #[coroutine] move || { let x = x; yield; assert_foo(x); @@ -41,7 +41,7 @@ fn main() { assert_foo(gen); // ok // Disallow impls which relates lifetimes in the coroutine interior - let gen = move || { + let gen = #[coroutine] move || { let a = A(&mut true, &mut true, No); //~^ temporary value dropped while borrowed //~| temporary value dropped while borrowed diff --git a/tests/ui/coroutine/auxiliary/metadata-sufficient-for-layout.rs b/tests/ui/coroutine/auxiliary/metadata-sufficient-for-layout.rs index 8af6973134a67..8ecb8c0c09793 100644 --- a/tests/ui/coroutine/auxiliary/metadata-sufficient-for-layout.rs +++ b/tests/ui/coroutine/auxiliary/metadata-sufficient-for-layout.rs @@ -5,6 +5,7 @@ use std::marker::Unpin; use std::ops::Coroutine; pub fn g() -> impl Coroutine<(), Yield = (), Return = ()> { + #[coroutine] || { yield; } diff --git a/tests/ui/coroutine/auxiliary/unwind-aux.rs b/tests/ui/coroutine/auxiliary/unwind-aux.rs index ff1e8ed32cd49..5d5e5c2218d39 100644 --- a/tests/ui/coroutine/auxiliary/unwind-aux.rs +++ b/tests/ui/coroutine/auxiliary/unwind-aux.rs @@ -2,9 +2,10 @@ //@ no-prefer-dynamic //@ edition:2021 -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] pub fn run(a: T) { - let _ = move || { + let _ = #[coroutine] + move || { drop(a); yield; }; diff --git a/tests/ui/coroutine/auxiliary/xcrate-reachable.rs b/tests/ui/coroutine/auxiliary/xcrate-reachable.rs index 673153f0619ea..0b5d18823004a 100644 --- a/tests/ui/coroutine/auxiliary/xcrate-reachable.rs +++ b/tests/ui/coroutine/auxiliary/xcrate-reachable.rs @@ -7,6 +7,7 @@ fn msg() -> u32 { } pub fn foo() -> impl Coroutine<(), Yield = (), Return = u32> { + #[coroutine] || { yield; return msg(); diff --git a/tests/ui/coroutine/auxiliary/xcrate.rs b/tests/ui/coroutine/auxiliary/xcrate.rs index f749a95ad35a3..52f188135bd1b 100644 --- a/tests/ui/coroutine/auxiliary/xcrate.rs +++ b/tests/ui/coroutine/auxiliary/xcrate.rs @@ -1,9 +1,10 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::marker::Unpin; use std::ops::Coroutine; pub fn foo() -> impl Coroutine<(), Yield = (), Return = ()> { + #[coroutine] || { if false { yield; @@ -12,7 +13,10 @@ pub fn foo() -> impl Coroutine<(), Yield = (), Return = ()> { } pub fn bar(t: T) -> Box + Unpin> { - Box::new(|| { - yield t; - }) + Box::new( + #[coroutine] + || { + yield t; + }, + ) } diff --git a/tests/ui/coroutine/borrow-in-tail-expr.rs b/tests/ui/coroutine/borrow-in-tail-expr.rs index 2f0aa62019e83..380e95cfc7765 100644 --- a/tests/ui/coroutine/borrow-in-tail-expr.rs +++ b/tests/ui/coroutine/borrow-in-tail-expr.rs @@ -1,9 +1,9 @@ //@ run-pass -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn main() { - let _a = || { + let _a = #[coroutine] || { yield; let a = String::new(); a.len() diff --git a/tests/ui/coroutine/borrowing.rs b/tests/ui/coroutine/borrowing.rs index 778eed8bd0d9f..a6628766c1bad 100644 --- a/tests/ui/coroutine/borrowing.rs +++ b/tests/ui/coroutine/borrowing.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; @@ -6,13 +6,13 @@ use std::pin::Pin; fn main() { let _b = { let a = 3; - Pin::new(&mut || yield &a).resume(()) + Pin::new(&mut #[coroutine] || yield &a).resume(()) //~^ ERROR: `a` does not live long enough }; let _b = { let a = 3; - || { + #[coroutine] || { yield &a //~^ ERROR: `a` does not live long enough } diff --git a/tests/ui/coroutine/borrowing.stderr b/tests/ui/coroutine/borrowing.stderr index acd4cdafdfdf7..9132e5d84eddf 100644 --- a/tests/ui/coroutine/borrowing.stderr +++ b/tests/ui/coroutine/borrowing.stderr @@ -1,13 +1,13 @@ error[E0597]: `a` does not live long enough - --> $DIR/borrowing.rs:9:33 + --> $DIR/borrowing.rs:9:46 | LL | let _b = { | -- borrow later stored here LL | let a = 3; -LL | Pin::new(&mut || yield &a).resume(()) - | -- ^ borrowed value does not live long enough - | | - | value captured here by coroutine +LL | Pin::new(&mut #[coroutine] || yield &a).resume(()) + | -- ^ borrowed value does not live long enough + | | + | value captured here by coroutine LL | LL | }; | - `a` dropped here while still borrowed @@ -18,8 +18,8 @@ error[E0597]: `a` does not live long enough LL | let _b = { | -- borrow later stored here LL | let a = 3; -LL | || { - | -- value captured here by coroutine +LL | #[coroutine] || { + | -- value captured here by coroutine LL | yield &a | ^ borrowed value does not live long enough ... diff --git a/tests/ui/coroutine/check-resume-ty-lifetimes-2.rs b/tests/ui/coroutine/check-resume-ty-lifetimes-2.rs index a316c50e86732..327756ebe6604 100644 --- a/tests/ui/coroutine/check-resume-ty-lifetimes-2.rs +++ b/tests/ui/coroutine/check-resume-ty-lifetimes-2.rs @@ -7,27 +7,27 @@ struct Contravariant<'a>(fn(&'a ())); struct Covariant<'a>(fn() -> &'a ()); fn bad1<'short, 'long: 'short>() -> impl Coroutine> { - |_: Covariant<'short>| { + #[coroutine] |_: Covariant<'short>| { let a: Covariant<'long> = yield (); //~^ ERROR lifetime may not live long enough } } fn bad2<'short, 'long: 'short>() -> impl Coroutine> { - |_: Contravariant<'long>| { + #[coroutine] |_: Contravariant<'long>| { let a: Contravariant<'short> = yield (); //~^ ERROR lifetime may not live long enough } } fn good1<'short, 'long: 'short>() -> impl Coroutine> { - |_: Covariant<'long>| { + #[coroutine] |_: Covariant<'long>| { let a: Covariant<'short> = yield (); } } fn good2<'short, 'long: 'short>() -> impl Coroutine> { - |_: Contravariant<'short>| { + #[coroutine] |_: Contravariant<'short>| { let a: Contravariant<'long> = yield (); } } diff --git a/tests/ui/coroutine/check-resume-ty-lifetimes-2.stderr b/tests/ui/coroutine/check-resume-ty-lifetimes-2.stderr index e0cbca2dd5267..8eb7ab3501b35 100644 --- a/tests/ui/coroutine/check-resume-ty-lifetimes-2.stderr +++ b/tests/ui/coroutine/check-resume-ty-lifetimes-2.stderr @@ -5,15 +5,15 @@ LL | fn bad1<'short, 'long: 'short>() -> impl Coroutine> { | ------ ----- lifetime `'long` defined here | | | lifetime `'short` defined here -LL | |_: Covariant<'short>| { +LL | #[coroutine] |_: Covariant<'short>| { LL | let a: Covariant<'long> = yield (); | ^^^^^^^^^^^^^^^^ type annotation requires that `'short` must outlive `'long` | = help: consider adding the following bound: `'short: 'long` help: consider adding 'move' keyword before the nested closure | -LL | move |_: Covariant<'short>| { - | ++++ +LL | #[coroutine] move |_: Covariant<'short>| { + | ++++ error: lifetime may not live long enough --> $DIR/check-resume-ty-lifetimes-2.rs:18:40 @@ -22,15 +22,15 @@ LL | fn bad2<'short, 'long: 'short>() -> impl Coroutine> { | ------ ----- lifetime `'long` defined here | | | lifetime `'short` defined here -LL | |_: Contravariant<'long>| { +LL | #[coroutine] |_: Contravariant<'long>| { LL | let a: Contravariant<'short> = yield (); | ^^^^^^^^ yielding this value requires that `'short` must outlive `'long` | = help: consider adding the following bound: `'short: 'long` help: consider adding 'move' keyword before the nested closure | -LL | move |_: Contravariant<'long>| { - | ++++ +LL | #[coroutine] move |_: Contravariant<'long>| { + | ++++ error: aborting due to 2 previous errors diff --git a/tests/ui/coroutine/check-resume-ty-lifetimes.rs b/tests/ui/coroutine/check-resume-ty-lifetimes.rs index add0b5080a8a8..b75e46c541cc5 100644 --- a/tests/ui/coroutine/check-resume-ty-lifetimes.rs +++ b/tests/ui/coroutine/check-resume-ty-lifetimes.rs @@ -1,5 +1,5 @@ #![feature(coroutine_trait)] -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![allow(unused)] use std::ops::Coroutine; @@ -9,11 +9,14 @@ use std::pin::pin; fn mk_static(s: &str) -> &'static str { let mut storage: Option<&'static str> = None; - let mut coroutine = pin!(|_: &str| { - let x: &'static str = yield (); - //~^ ERROR lifetime may not live long enough - storage = Some(x); - }); + let mut coroutine = pin!( + #[coroutine] + |_: &str| { + let x: &'static str = yield (); + //~^ ERROR lifetime may not live long enough + storage = Some(x); + } + ); coroutine.as_mut().resume(s); coroutine.as_mut().resume(s); diff --git a/tests/ui/coroutine/check-resume-ty-lifetimes.stderr b/tests/ui/coroutine/check-resume-ty-lifetimes.stderr index f373aa778a82c..1fbaeb9f7fa41 100644 --- a/tests/ui/coroutine/check-resume-ty-lifetimes.stderr +++ b/tests/ui/coroutine/check-resume-ty-lifetimes.stderr @@ -1,11 +1,11 @@ error: lifetime may not live long enough - --> $DIR/check-resume-ty-lifetimes.rs:13:16 + --> $DIR/check-resume-ty-lifetimes.rs:15:20 | LL | fn mk_static(s: &str) -> &'static str { | - let's call the lifetime of this reference `'1` ... -LL | let x: &'static str = yield (); - | ^^^^^^^^^^^^ type annotation requires that `'1` must outlive `'static` +LL | let x: &'static str = yield (); + | ^^^^^^^^^^^^ type annotation requires that `'1` must outlive `'static` error: aborting due to 1 previous error diff --git a/tests/ui/coroutine/clone-impl-static.rs b/tests/ui/coroutine/clone-impl-static.rs index 9a165cf4672e6..56d1ccac70350 100644 --- a/tests/ui/coroutine/clone-impl-static.rs +++ b/tests/ui/coroutine/clone-impl-static.rs @@ -1,10 +1,11 @@ // gate-test-coroutine_clone // Verifies that static coroutines cannot be cloned/copied. -#![feature(coroutines, coroutine_clone)] +#![feature(coroutines, coroutine_clone, stmt_expr_attributes)] fn main() { - let gen = static move || { + let gen = #[coroutine] + static move || { yield; }; check_copy(&gen); diff --git a/tests/ui/coroutine/clone-impl-static.stderr b/tests/ui/coroutine/clone-impl-static.stderr index 8fa9fb12bf685..43920326d5dfd 100644 --- a/tests/ui/coroutine/clone-impl-static.stderr +++ b/tests/ui/coroutine/clone-impl-static.stderr @@ -1,27 +1,27 @@ -error[E0277]: the trait bound `{static coroutine@$DIR/clone-impl-static.rs:7:15: 7:29}: Copy` is not satisfied - --> $DIR/clone-impl-static.rs:10:16 +error[E0277]: the trait bound `{static coroutine@$DIR/clone-impl-static.rs:8:5: 8:19}: Copy` is not satisfied + --> $DIR/clone-impl-static.rs:11:16 | LL | check_copy(&gen); - | ---------- ^^^^ the trait `Copy` is not implemented for `{static coroutine@$DIR/clone-impl-static.rs:7:15: 7:29}` + | ---------- ^^^^ the trait `Copy` is not implemented for `{static coroutine@$DIR/clone-impl-static.rs:8:5: 8:19}` | | | required by a bound introduced by this call | note: required by a bound in `check_copy` - --> $DIR/clone-impl-static.rs:16:18 + --> $DIR/clone-impl-static.rs:17:18 | LL | fn check_copy(_x: &T) {} | ^^^^ required by this bound in `check_copy` -error[E0277]: the trait bound `{static coroutine@$DIR/clone-impl-static.rs:7:15: 7:29}: Clone` is not satisfied - --> $DIR/clone-impl-static.rs:12:17 +error[E0277]: the trait bound `{static coroutine@$DIR/clone-impl-static.rs:8:5: 8:19}: Clone` is not satisfied + --> $DIR/clone-impl-static.rs:13:17 | LL | check_clone(&gen); - | ----------- ^^^^ the trait `Clone` is not implemented for `{static coroutine@$DIR/clone-impl-static.rs:7:15: 7:29}` + | ----------- ^^^^ the trait `Clone` is not implemented for `{static coroutine@$DIR/clone-impl-static.rs:8:5: 8:19}` | | | required by a bound introduced by this call | note: required by a bound in `check_clone` - --> $DIR/clone-impl-static.rs:17:19 + --> $DIR/clone-impl-static.rs:18:19 | LL | fn check_clone(_x: &T) {} | ^^^^^ required by this bound in `check_clone` diff --git a/tests/ui/coroutine/clone-impl.rs b/tests/ui/coroutine/clone-impl.rs index fffdae632ef7d..94420e56a2261 100644 --- a/tests/ui/coroutine/clone-impl.rs +++ b/tests/ui/coroutine/clone-impl.rs @@ -2,13 +2,14 @@ // Verifies that non-static coroutines can be cloned/copied if all their upvars and locals held // across awaits can be cloned/copied. -#![feature(coroutines, coroutine_clone)] +#![feature(coroutines, coroutine_clone, stmt_expr_attributes)] struct NonClone; fn test1() { let copyable: u32 = 123; - let gen_copy_0 = move || { + let gen_copy_0 = #[coroutine] + move || { yield; drop(copyable); }; @@ -18,7 +19,8 @@ fn test1() { fn test2() { let copyable: u32 = 123; - let gen_copy_1 = move || { + let gen_copy_1 = #[coroutine] + move || { /* let v = vec!['a']; let n = NonClone; @@ -37,7 +39,8 @@ fn test2() { fn test3() { let clonable_0: Vec = Vec::new(); - let gen_clone_0 = move || { + let gen_clone_0 = #[coroutine] + move || { let v = vec!['a']; yield; drop(v); @@ -51,7 +54,8 @@ fn test3() { fn test4() { let clonable_1: Vec = Vec::new(); - let gen_clone_1 = move || { + let gen_clone_1 = #[coroutine] + move || { let v = vec!['a']; /* let n = NonClone; @@ -71,7 +75,8 @@ fn test4() { fn test5() { let non_clonable: NonClone = NonClone; - let gen_non_clone = move || { + let gen_non_clone = #[coroutine] + move || { yield; drop(non_clonable); }; diff --git a/tests/ui/coroutine/clone-impl.stderr b/tests/ui/coroutine/clone-impl.stderr index b454846faac9b..5330d3bbd39d5 100644 --- a/tests/ui/coroutine/clone-impl.stderr +++ b/tests/ui/coroutine/clone-impl.stderr @@ -1,76 +1,76 @@ -error[E0277]: the trait bound `Vec: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:40:23: 40:30}` - --> $DIR/clone-impl.rs:46:5 +error[E0277]: the trait bound `Vec: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:43:5: 43:12}` + --> $DIR/clone-impl.rs:49:5 | -LL | let gen_clone_0 = move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:40:23: 40:30}` +LL | move || { + | ------- within this `{coroutine@$DIR/clone-impl.rs:43:5: 43:12}` ... LL | check_copy(&gen_clone_0); - | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:40:23: 40:30}`, the trait `Copy` is not implemented for `Vec`, which is required by `{coroutine@$DIR/clone-impl.rs:40:23: 40:30}: Copy` + | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:43:5: 43:12}`, the trait `Copy` is not implemented for `Vec`, which is required by `{coroutine@$DIR/clone-impl.rs:43:5: 43:12}: Copy` | note: captured value does not implement `Copy` - --> $DIR/clone-impl.rs:44:14 + --> $DIR/clone-impl.rs:47:14 | LL | drop(clonable_0); | ^^^^^^^^^^ has type `Vec` which does not implement `Copy` note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:84:18 + --> $DIR/clone-impl.rs:89:18 | LL | fn check_copy(_x: &T) {} | ^^^^ required by this bound in `check_copy` -error[E0277]: the trait bound `Vec: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:40:23: 40:30}` - --> $DIR/clone-impl.rs:46:5 +error[E0277]: the trait bound `Vec: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:43:5: 43:12}` + --> $DIR/clone-impl.rs:49:5 | -LL | let gen_clone_0 = move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:40:23: 40:30}` +LL | move || { + | ------- within this `{coroutine@$DIR/clone-impl.rs:43:5: 43:12}` ... LL | check_copy(&gen_clone_0); - | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:40:23: 40:30}`, the trait `Copy` is not implemented for `Vec`, which is required by `{coroutine@$DIR/clone-impl.rs:40:23: 40:30}: Copy` + | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:43:5: 43:12}`, the trait `Copy` is not implemented for `Vec`, which is required by `{coroutine@$DIR/clone-impl.rs:43:5: 43:12}: Copy` | note: coroutine does not implement `Copy` as this value is used across a yield - --> $DIR/clone-impl.rs:42:9 + --> $DIR/clone-impl.rs:45:9 | LL | let v = vec!['a']; | - has type `Vec` which does not implement `Copy` LL | yield; | ^^^^^ yield occurs here, with `v` maybe used later note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:84:18 + --> $DIR/clone-impl.rs:89:18 | LL | fn check_copy(_x: &T) {} | ^^^^ required by this bound in `check_copy` -error[E0277]: the trait bound `Vec: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:54:23: 54:30}` - --> $DIR/clone-impl.rs:66:5 +error[E0277]: the trait bound `Vec: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:58:5: 58:12}` + --> $DIR/clone-impl.rs:70:5 | -LL | let gen_clone_1 = move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:54:23: 54:30}` +LL | move || { + | ------- within this `{coroutine@$DIR/clone-impl.rs:58:5: 58:12}` ... LL | check_copy(&gen_clone_1); - | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:54:23: 54:30}`, the trait `Copy` is not implemented for `Vec`, which is required by `{coroutine@$DIR/clone-impl.rs:54:23: 54:30}: Copy` + | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:58:5: 58:12}`, the trait `Copy` is not implemented for `Vec`, which is required by `{coroutine@$DIR/clone-impl.rs:58:5: 58:12}: Copy` | note: captured value does not implement `Copy` - --> $DIR/clone-impl.rs:64:14 + --> $DIR/clone-impl.rs:68:14 | LL | drop(clonable_1); | ^^^^^^^^^^ has type `Vec` which does not implement `Copy` note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:84:18 + --> $DIR/clone-impl.rs:89:18 | LL | fn check_copy(_x: &T) {} | ^^^^ required by this bound in `check_copy` -error[E0277]: the trait bound `Vec: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:54:23: 54:30}` - --> $DIR/clone-impl.rs:66:5 +error[E0277]: the trait bound `Vec: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:58:5: 58:12}` + --> $DIR/clone-impl.rs:70:5 | -LL | let gen_clone_1 = move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:54:23: 54:30}` +LL | move || { + | ------- within this `{coroutine@$DIR/clone-impl.rs:58:5: 58:12}` ... LL | check_copy(&gen_clone_1); - | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:54:23: 54:30}`, the trait `Copy` is not implemented for `Vec`, which is required by `{coroutine@$DIR/clone-impl.rs:54:23: 54:30}: Copy` + | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:58:5: 58:12}`, the trait `Copy` is not implemented for `Vec`, which is required by `{coroutine@$DIR/clone-impl.rs:58:5: 58:12}: Copy` | note: coroutine does not implement `Copy` as this value is used across a yield - --> $DIR/clone-impl.rs:60:9 + --> $DIR/clone-impl.rs:64:9 | LL | let v = vec!['a']; | - has type `Vec` which does not implement `Copy` @@ -78,27 +78,27 @@ LL | let v = vec!['a']; LL | yield; | ^^^^^ yield occurs here, with `v` maybe used later note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:84:18 + --> $DIR/clone-impl.rs:89:18 | LL | fn check_copy(_x: &T) {} | ^^^^ required by this bound in `check_copy` -error[E0277]: the trait bound `NonClone: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:74:25: 74:32}` - --> $DIR/clone-impl.rs:78:5 +error[E0277]: the trait bound `NonClone: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:79:5: 79:12}` + --> $DIR/clone-impl.rs:83:5 | -LL | let gen_non_clone = move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:74:25: 74:32}` +LL | move || { + | ------- within this `{coroutine@$DIR/clone-impl.rs:79:5: 79:12}` ... LL | check_copy(&gen_non_clone); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:74:25: 74:32}`, the trait `Copy` is not implemented for `NonClone`, which is required by `{coroutine@$DIR/clone-impl.rs:74:25: 74:32}: Copy` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:79:5: 79:12}`, the trait `Copy` is not implemented for `NonClone`, which is required by `{coroutine@$DIR/clone-impl.rs:79:5: 79:12}: Copy` | note: captured value does not implement `Copy` - --> $DIR/clone-impl.rs:76:14 + --> $DIR/clone-impl.rs:81:14 | LL | drop(non_clonable); | ^^^^^^^^^^^^ has type `NonClone` which does not implement `Copy` note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:84:18 + --> $DIR/clone-impl.rs:89:18 | LL | fn check_copy(_x: &T) {} | ^^^^ required by this bound in `check_copy` @@ -108,22 +108,22 @@ LL + #[derive(Copy)] LL | struct NonClone; | -error[E0277]: the trait bound `NonClone: Clone` is not satisfied in `{coroutine@$DIR/clone-impl.rs:74:25: 74:32}` - --> $DIR/clone-impl.rs:80:5 +error[E0277]: the trait bound `NonClone: Clone` is not satisfied in `{coroutine@$DIR/clone-impl.rs:79:5: 79:12}` + --> $DIR/clone-impl.rs:85:5 | -LL | let gen_non_clone = move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:74:25: 74:32}` +LL | move || { + | ------- within this `{coroutine@$DIR/clone-impl.rs:79:5: 79:12}` ... LL | check_clone(&gen_non_clone); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:74:25: 74:32}`, the trait `Clone` is not implemented for `NonClone`, which is required by `{coroutine@$DIR/clone-impl.rs:74:25: 74:32}: Clone` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:79:5: 79:12}`, the trait `Clone` is not implemented for `NonClone`, which is required by `{coroutine@$DIR/clone-impl.rs:79:5: 79:12}: Clone` | note: captured value does not implement `Clone` - --> $DIR/clone-impl.rs:76:14 + --> $DIR/clone-impl.rs:81:14 | LL | drop(non_clonable); | ^^^^^^^^^^^^ has type `NonClone` which does not implement `Clone` note: required by a bound in `check_clone` - --> $DIR/clone-impl.rs:85:19 + --> $DIR/clone-impl.rs:90:19 | LL | fn check_clone(_x: &T) {} | ^^^^^ required by this bound in `check_clone` diff --git a/tests/ui/coroutine/clone-rpit.next.stderr b/tests/ui/coroutine/clone-rpit.next.stderr index 41aa2d63af016..c223f1f211ac6 100644 --- a/tests/ui/coroutine/clone-rpit.next.stderr +++ b/tests/ui/coroutine/clone-rpit.next.stderr @@ -5,32 +5,32 @@ LL | pub fn foo<'a, 'b>() -> impl Clone { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: ...which requires coroutine witness types for `foo::{closure#0}`... - --> $DIR/clone-rpit.rs:14:5 + --> $DIR/clone-rpit.rs:15:5 | LL | move |_: ()| { | ^^^^^^^^^^^^ note: ...which requires promoting constants in MIR for `foo::{closure#0}`... - --> $DIR/clone-rpit.rs:14:5 + --> $DIR/clone-rpit.rs:15:5 | LL | move |_: ()| { | ^^^^^^^^^^^^ note: ...which requires checking if `foo::{closure#0}` contains FFI-unwind calls... - --> $DIR/clone-rpit.rs:14:5 + --> $DIR/clone-rpit.rs:15:5 | LL | move |_: ()| { | ^^^^^^^^^^^^ note: ...which requires building MIR for `foo::{closure#0}`... - --> $DIR/clone-rpit.rs:14:5 + --> $DIR/clone-rpit.rs:15:5 | LL | move |_: ()| { | ^^^^^^^^^^^^ note: ...which requires match-checking `foo::{closure#0}`... - --> $DIR/clone-rpit.rs:14:5 + --> $DIR/clone-rpit.rs:15:5 | LL | move |_: ()| { | ^^^^^^^^^^^^ note: ...which requires type-checking `foo::{closure#0}`... - --> $DIR/clone-rpit.rs:14:5 + --> $DIR/clone-rpit.rs:15:5 | LL | move |_: ()| { | ^^^^^^^^^^^^ diff --git a/tests/ui/coroutine/clone-rpit.rs b/tests/ui/coroutine/clone-rpit.rs index 0df9bf616018f..66569b4f42741 100644 --- a/tests/ui/coroutine/clone-rpit.rs +++ b/tests/ui/coroutine/clone-rpit.rs @@ -11,6 +11,7 @@ // witness types, which we don't know until after borrowck. When we later check // the goal for correctness, we want to be able to bind the `impl Clone` opaque. pub fn foo<'a, 'b>() -> impl Clone { + #[coroutine] move |_: ()| { let () = yield (); } diff --git a/tests/ui/coroutine/conditional-drop.rs b/tests/ui/coroutine/conditional-drop.rs index 65d3a9e701ee4..52e1b561946c7 100644 --- a/tests/ui/coroutine/conditional-drop.rs +++ b/tests/ui/coroutine/conditional-drop.rs @@ -3,7 +3,7 @@ //@ revisions: default nomiropt //@[nomiropt]compile-flags: -Z mir-opt-level=0 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; @@ -29,7 +29,7 @@ fn main() { } fn t1() { - let mut a = || { + let mut a = #[coroutine] || { let b = B; if test() { drop(b); @@ -45,7 +45,7 @@ fn t1() { } fn t2() { - let mut a = || { + let mut a = #[coroutine] || { let b = B; if test2() { drop(b); diff --git a/tests/ui/coroutine/control-flow.rs b/tests/ui/coroutine/control-flow.rs index 9070ba17856c9..f64b6f7388366 100644 --- a/tests/ui/coroutine/control-flow.rs +++ b/tests/ui/coroutine/control-flow.rs @@ -3,7 +3,7 @@ //@ revisions: default nomiropt //@[nomiropt]compile-flags: -Z mir-opt-level=0 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{CoroutineState, Coroutine}; use std::pin::Pin; @@ -24,25 +24,25 @@ fn finish(mut amt: usize, mut t: T) -> T::Return } fn main() { - finish(1, || yield); - finish(8, || { + finish(1, #[coroutine] || yield); + finish(8, #[coroutine] || { for _ in 0..8 { yield; } }); - finish(1, || { + finish(1, #[coroutine] || { if true { yield; } else { } }); - finish(1, || { + finish(1, #[coroutine] || { if false { } else { yield; } }); - finish(2, || { + finish(2, #[coroutine] || { if { yield; false } { yield; panic!() diff --git a/tests/ui/coroutine/coroutine-region-requirements.rs b/tests/ui/coroutine/coroutine-region-requirements.rs index 8bc34fdd2f053..ab6f16995e276 100644 --- a/tests/ui/coroutine/coroutine-region-requirements.rs +++ b/tests/ui/coroutine/coroutine-region-requirements.rs @@ -1,9 +1,9 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; fn dangle(x: &mut i32) -> &'static mut i32 { - let mut g = || { + let mut g = #[coroutine] || { yield; x }; diff --git a/tests/ui/coroutine/coroutine-resume-after-panic.rs b/tests/ui/coroutine/coroutine-resume-after-panic.rs index 8445bf7e6352c..2745ebc61326f 100644 --- a/tests/ui/coroutine/coroutine-resume-after-panic.rs +++ b/tests/ui/coroutine/coroutine-resume-after-panic.rs @@ -5,7 +5,7 @@ // Test that we get the correct message for resuming a panicked coroutine. -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::{ ops::Coroutine, @@ -14,7 +14,7 @@ use std::{ }; fn main() { - let mut g = || { + let mut g = #[coroutine] || { panic!(); yield; }; diff --git a/tests/ui/coroutine/coroutine-with-nll.rs b/tests/ui/coroutine/coroutine-with-nll.rs index 28a3643fbc9cd..fa77ab4e04958 100644 --- a/tests/ui/coroutine/coroutine-with-nll.rs +++ b/tests/ui/coroutine/coroutine-with-nll.rs @@ -1,6 +1,7 @@ #![feature(coroutines)] fn main() { + #[coroutine] || { // The reference in `_a` is a Legal with NLL since it ends before the yield let _a = &mut true; diff --git a/tests/ui/coroutine/coroutine-with-nll.stderr b/tests/ui/coroutine/coroutine-with-nll.stderr index 77e8bb1f92ee9..3f3d51da31180 100644 --- a/tests/ui/coroutine/coroutine-with-nll.stderr +++ b/tests/ui/coroutine/coroutine-with-nll.stderr @@ -1,5 +1,5 @@ error[E0626]: borrow may still be in use when coroutine yields - --> $DIR/coroutine-with-nll.rs:7:17 + --> $DIR/coroutine-with-nll.rs:8:17 | LL | let b = &mut true; | ^^^^^^^^^ diff --git a/tests/ui/coroutine/coroutine-yielding-or-returning-itself.rs b/tests/ui/coroutine/coroutine-yielding-or-returning-itself.rs index 3c91b3c932951..f3110d71d0d72 100644 --- a/tests/ui/coroutine/coroutine-yielding-or-returning-itself.rs +++ b/tests/ui/coroutine/coroutine-yielding-or-returning-itself.rs @@ -1,5 +1,5 @@ #![feature(coroutine_trait)] -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] // Test that we cannot create a coroutine that returns a value of its // own type. @@ -12,7 +12,7 @@ pub fn want_cyclic_coroutine_return(_: T) } fn supply_cyclic_coroutine_return() { - want_cyclic_coroutine_return(|| { + want_cyclic_coroutine_return(#[coroutine] || { //~^ ERROR type mismatch if false { yield None.unwrap(); } None.unwrap() @@ -25,7 +25,7 @@ pub fn want_cyclic_coroutine_yield(_: T) } fn supply_cyclic_coroutine_yield() { - want_cyclic_coroutine_yield(|| { + want_cyclic_coroutine_yield(#[coroutine] || { //~^ ERROR type mismatch if false { yield None.unwrap(); } None.unwrap() diff --git a/tests/ui/coroutine/coroutine-yielding-or-returning-itself.stderr b/tests/ui/coroutine/coroutine-yielding-or-returning-itself.stderr index 325030524ba8d..32799148ae1da 100644 --- a/tests/ui/coroutine/coroutine-yielding-or-returning-itself.stderr +++ b/tests/ui/coroutine/coroutine-yielding-or-returning-itself.stderr @@ -1,8 +1,8 @@ -error[E0271]: type mismatch resolving `<{coroutine@$DIR/coroutine-yielding-or-returning-itself.rs:15:34: 15:36} as Coroutine>::Return == {coroutine@$DIR/coroutine-yielding-or-returning-itself.rs:15:34: 15:36}` - --> $DIR/coroutine-yielding-or-returning-itself.rs:15:34 +error[E0271]: type mismatch resolving `<{coroutine@$DIR/coroutine-yielding-or-returning-itself.rs:15:47: 15:49} as Coroutine>::Return == {coroutine@$DIR/coroutine-yielding-or-returning-itself.rs:15:47: 15:49}` + --> $DIR/coroutine-yielding-or-returning-itself.rs:15:47 | -LL | want_cyclic_coroutine_return(|| { - | _____----------------------------_^ +LL | want_cyclic_coroutine_return(#[coroutine] || { + | _____----------------------------______________^ | | | | | required by a bound introduced by this call LL | | @@ -23,11 +23,11 @@ LL | pub fn want_cyclic_coroutine_return(_: T) LL | where T: Coroutine | ^^^^^^^^^^ required by this bound in `want_cyclic_coroutine_return` -error[E0271]: type mismatch resolving `<{coroutine@$DIR/coroutine-yielding-or-returning-itself.rs:28:33: 28:35} as Coroutine>::Yield == {coroutine@$DIR/coroutine-yielding-or-returning-itself.rs:28:33: 28:35}` - --> $DIR/coroutine-yielding-or-returning-itself.rs:28:33 +error[E0271]: type mismatch resolving `<{coroutine@$DIR/coroutine-yielding-or-returning-itself.rs:28:46: 28:48} as Coroutine>::Yield == {coroutine@$DIR/coroutine-yielding-or-returning-itself.rs:28:46: 28:48}` + --> $DIR/coroutine-yielding-or-returning-itself.rs:28:46 | -LL | want_cyclic_coroutine_yield(|| { - | _____---------------------------_^ +LL | want_cyclic_coroutine_yield(#[coroutine] || { + | _____---------------------------______________^ | | | | | required by a bound introduced by this call LL | | diff --git a/tests/ui/coroutine/derived-drop-parent-expr.rs b/tests/ui/coroutine/derived-drop-parent-expr.rs index f70a732c90f08..cc217e4960e90 100644 --- a/tests/ui/coroutine/derived-drop-parent-expr.rs +++ b/tests/ui/coroutine/derived-drop-parent-expr.rs @@ -1,7 +1,7 @@ //@ build-pass //! Like drop-tracking-parent-expression, but also tests that this doesn't ICE when building MIR -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn assert_send(_thing: T) {} @@ -9,8 +9,8 @@ fn assert_send(_thing: T) {} pub struct Client { pub nickname: String } fn main() { - let g = move || match drop(Client { ..Client::default() }) { - _status => yield, - }; + let g = #[coroutine] move || match drop(Client { ..Client::default() }) { + _status => yield, + }; assert_send(g); } diff --git a/tests/ui/coroutine/discriminant.rs b/tests/ui/coroutine/discriminant.rs index a44d8f74746b6..d6879e2182556 100644 --- a/tests/ui/coroutine/discriminant.rs +++ b/tests/ui/coroutine/discriminant.rs @@ -86,7 +86,7 @@ fn cycle( fn main() { // Has only one invalid discr. value. let gen_u8_tiny_niche = || { - || { + #[coroutine] || { // 3 reserved variants yield250!(); // 253 variants @@ -98,7 +98,7 @@ fn main() { // Uses all values in the u8 discriminant. let gen_u8_full = || { - || { + #[coroutine] || { // 3 reserved variants yield250!(); // 253 variants @@ -111,7 +111,7 @@ fn main() { // Barely needs a u16 discriminant. let gen_u16 = || { - || { + #[coroutine] || { // 3 reserved variants yield250!(); // 253 variants diff --git a/tests/ui/coroutine/drop-and-replace.rs b/tests/ui/coroutine/drop-and-replace.rs index 6e30d76512b72..d3d7e000020a1 100644 --- a/tests/ui/coroutine/drop-and-replace.rs +++ b/tests/ui/coroutine/drop-and-replace.rs @@ -4,7 +4,7 @@ // #60187, this produced incorrect code for coroutines when a saved local was // re-assigned. -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; @@ -17,7 +17,8 @@ impl Drop for Foo { } fn main() { - let mut a = || { + let mut a = #[coroutine] + || { let mut x = Foo(4); yield; assert_eq!(x.0, 4); diff --git a/tests/ui/coroutine/drop-control-flow.rs b/tests/ui/coroutine/drop-control-flow.rs index f4e8eed4f8dce..f576b1b759443 100644 --- a/tests/ui/coroutine/drop-control-flow.rs +++ b/tests/ui/coroutine/drop-control-flow.rs @@ -4,7 +4,7 @@ // and also that values that are dropped along all paths to a yield do not get // included in the coroutine type. -#![feature(coroutines, negative_impls)] +#![feature(coroutines, negative_impls, stmt_expr_attributes)] #![allow(unused_assignments, dead_code)] struct Ptr; @@ -19,7 +19,7 @@ fn assert_send(_: T) {} // This test case is reduced from tests/ui/drop/dynamic-drop-async.rs fn one_armed_if(arg: bool) { - let _ = || { + let _ = #[coroutine] || { let arr = [Ptr]; if arg { drop(arr); @@ -29,7 +29,7 @@ fn one_armed_if(arg: bool) { } fn two_armed_if(arg: bool) { - assert_send(|| { + assert_send(#[coroutine] || { let arr = [Ptr]; if arg { drop(arr); @@ -41,7 +41,7 @@ fn two_armed_if(arg: bool) { } fn if_let(arg: Option) { - let _ = || { + let _ = #[coroutine] || { let arr = [Ptr]; if let Some(_) = arg { drop(arr); @@ -51,7 +51,7 @@ fn if_let(arg: Option) { } fn init_in_if(arg: bool) { - assert_send(|| { + assert_send(#[coroutine] || { let mut x = NonSend; drop(x); if arg { @@ -63,7 +63,7 @@ fn init_in_if(arg: bool) { } fn init_in_match_arm(arg: Option) { - assert_send(|| { + assert_send(#[coroutine] || { let mut x = NonSend; drop(x); match arg { @@ -74,7 +74,7 @@ fn init_in_match_arm(arg: Option) { } fn reinit() { - let _ = || { + let _ = #[coroutine] || { let mut arr = [Ptr]; drop(arr); arr = [Ptr]; @@ -83,7 +83,7 @@ fn reinit() { } fn loop_uninit() { - let _ = || { + let _ = #[coroutine] || { let mut arr = [Ptr]; let mut count = 0; drop(arr); @@ -96,7 +96,7 @@ fn loop_uninit() { } fn nested_loop() { - let _ = || { + let _ = #[coroutine] || { let mut arr = [Ptr]; let mut count = 0; drop(arr); @@ -111,7 +111,7 @@ fn nested_loop() { } fn loop_continue(b: bool) { - let _ = || { + let _ = #[coroutine] || { let mut arr = [Ptr]; let mut count = 0; drop(arr); diff --git a/tests/ui/coroutine/drop-env.rs b/tests/ui/coroutine/drop-env.rs index b189ab8149956..d36228dc84904 100644 --- a/tests/ui/coroutine/drop-env.rs +++ b/tests/ui/coroutine/drop-env.rs @@ -3,7 +3,7 @@ //@ revisions: default nomiropt //@[nomiropt]compile-flags: -Z mir-opt-level=0 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] #![allow(dropping_copy_types)] use std::ops::Coroutine; @@ -28,7 +28,7 @@ fn main() { fn t1() { let b = B; - let mut foo = || { + let mut foo = #[coroutine] || { yield; drop(b); }; @@ -42,7 +42,7 @@ fn t1() { fn t2() { let b = B; - let mut foo = || { + let mut foo = #[coroutine] || { yield b; }; @@ -55,7 +55,7 @@ fn t2() { fn t3() { let b = B; - let foo = || { + let foo = #[coroutine] || { yield; drop(b); }; diff --git a/tests/ui/coroutine/drop-track-addassign-yield.rs b/tests/ui/coroutine/drop-track-addassign-yield.rs index b1a4bd79f31c1..537e66c41b20b 100644 --- a/tests/ui/coroutine/drop-track-addassign-yield.rs +++ b/tests/ui/coroutine/drop-track-addassign-yield.rs @@ -3,10 +3,10 @@ // Based on addassign-yield.rs, but with drop tracking enabled. Originally we did not implement // the fake_read callback on ExprUseVisitor which caused this case to break. -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn foo() { - let _y = static || { + let _y = #[coroutine] static || { let x = &mut 0; *{ yield; @@ -17,7 +17,7 @@ fn foo() { }; // Please don't ever actually write something like this - let _z = static || { + let _z = #[coroutine] static || { let x = &mut 0; *{ let inner = &mut 1; diff --git a/tests/ui/coroutine/drop-tracking-parent-expression.rs b/tests/ui/coroutine/drop-tracking-parent-expression.rs index 4d40192c07a27..0f4d99c893648 100644 --- a/tests/ui/coroutine/drop-tracking-parent-expression.rs +++ b/tests/ui/coroutine/drop-tracking-parent-expression.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, negative_impls, rustc_attrs)] +#![feature(coroutines, negative_impls, rustc_attrs, stmt_expr_attributes)] macro_rules! type_combinations { ( @@ -14,7 +14,7 @@ macro_rules! type_combinations { // Struct update syntax. This fails because the Client used in the update is considered // dropped *after* the yield. { - let g = move || match drop($name::Client { ..$name::Client::default() }) { + let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) { //~^ `significant_drop::Client` which is not `Send` //~| `insignificant_dtor::Client` which is not `Send` //~| `derived_drop::Client` which is not `Send` @@ -29,7 +29,7 @@ macro_rules! type_combinations { // Simple owned value. This works because the Client is considered moved into `drop`, // even though the temporary expression doesn't end until after the yield. { - let g = move || match drop($name::Client::default()) { + let g = #[coroutine] move || match drop($name::Client::default()) { _ => yield, }; assert_send(g); diff --git a/tests/ui/coroutine/drop-tracking-parent-expression.stderr b/tests/ui/coroutine/drop-tracking-parent-expression.stderr index 21aa35b9579bc..5f8d8495e4f14 100644 --- a/tests/ui/coroutine/drop-tracking-parent-expression.stderr +++ b/tests/ui/coroutine/drop-tracking-parent-expression.stderr @@ -13,12 +13,12 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:21: 17:28}`, the trait `Send` is not implemented for `derived_drop::Client`, which is required by `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:21: 17:28}: Send` + = help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:34: 17:41}`, the trait `Send` is not implemented for `derived_drop::Client`, which is required by `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:34: 17:41}: Send` note: coroutine is not `Send` as this value is used across a yield --> $DIR/drop-tracking-parent-expression.rs:21:22 | -LL | let g = move || match drop($name::Client { ..$name::Client::default() }) { - | ------------------------ has type `derived_drop::Client` which is not `Send` +LL | let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) { + | ------------------------ has type `derived_drop::Client` which is not `Send` ... LL | _ => yield, | ^^^^^ yield occurs here, with `$name::Client::default()` maybe used later @@ -53,12 +53,12 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:21: 17:28}`, the trait `Send` is not implemented for `significant_drop::Client`, which is required by `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:21: 17:28}: Send` + = help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:34: 17:41}`, the trait `Send` is not implemented for `significant_drop::Client`, which is required by `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:34: 17:41}: Send` note: coroutine is not `Send` as this value is used across a yield --> $DIR/drop-tracking-parent-expression.rs:21:22 | -LL | let g = move || match drop($name::Client { ..$name::Client::default() }) { - | ------------------------ has type `significant_drop::Client` which is not `Send` +LL | let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) { + | ------------------------ has type `significant_drop::Client` which is not `Send` ... LL | _ => yield, | ^^^^^ yield occurs here, with `$name::Client::default()` maybe used later @@ -93,12 +93,12 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:21: 17:28}`, the trait `Send` is not implemented for `insignificant_dtor::Client`, which is required by `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:21: 17:28}: Send` + = help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:34: 17:41}`, the trait `Send` is not implemented for `insignificant_dtor::Client`, which is required by `{coroutine@$DIR/drop-tracking-parent-expression.rs:17:34: 17:41}: Send` note: coroutine is not `Send` as this value is used across a yield --> $DIR/drop-tracking-parent-expression.rs:21:22 | -LL | let g = move || match drop($name::Client { ..$name::Client::default() }) { - | ------------------------ has type `insignificant_dtor::Client` which is not `Send` +LL | let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) { + | ------------------------ has type `insignificant_dtor::Client` which is not `Send` ... LL | _ => yield, | ^^^^^ yield occurs here, with `$name::Client::default()` maybe used later diff --git a/tests/ui/coroutine/drop-tracking-yielding-in-match-guards.rs b/tests/ui/coroutine/drop-tracking-yielding-in-match-guards.rs index 0f94016f11b82..43e42fa85f7f4 100644 --- a/tests/ui/coroutine/drop-tracking-yielding-in-match-guards.rs +++ b/tests/ui/coroutine/drop-tracking-yielding-in-match-guards.rs @@ -1,10 +1,10 @@ //@ build-pass //@ edition:2018 -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn main() { - let _ = static |x: u8| match x { + let _ = #[coroutine] static |x: u8| match x { y if { yield } == y + 1 => (), _ => (), }; diff --git a/tests/ui/coroutine/drop-yield-twice.rs b/tests/ui/coroutine/drop-yield-twice.rs index 015343a277626..7ac1345b2ff2e 100644 --- a/tests/ui/coroutine/drop-yield-twice.rs +++ b/tests/ui/coroutine/drop-yield-twice.rs @@ -1,10 +1,10 @@ -#![feature(negative_impls, coroutines)] +#![feature(negative_impls, coroutines, stmt_expr_attributes)] struct Foo(i32); impl !Send for Foo {} fn main() { - assert_send(|| { //~ ERROR coroutine cannot be sent between threads safely + assert_send(#[coroutine] || { //~ ERROR coroutine cannot be sent between threads safely let guard = Foo(42); yield; drop(guard); diff --git a/tests/ui/coroutine/drop-yield-twice.stderr b/tests/ui/coroutine/drop-yield-twice.stderr index c6a9e20b8b51f..362c6e943ade0 100644 --- a/tests/ui/coroutine/drop-yield-twice.stderr +++ b/tests/ui/coroutine/drop-yield-twice.stderr @@ -1,7 +1,7 @@ error: coroutine cannot be sent between threads safely --> $DIR/drop-yield-twice.rs:7:5 | -LL | / assert_send(|| { +LL | / assert_send(#[coroutine] || { LL | | let guard = Foo(42); LL | | yield; LL | | drop(guard); @@ -9,7 +9,7 @@ LL | | yield; LL | | }) | |______^ coroutine is not `Send` | - = help: within `{coroutine@$DIR/drop-yield-twice.rs:7:17: 7:19}`, the trait `Send` is not implemented for `Foo`, which is required by `{coroutine@$DIR/drop-yield-twice.rs:7:17: 7:19}: Send` + = help: within `{coroutine@$DIR/drop-yield-twice.rs:7:30: 7:32}`, the trait `Send` is not implemented for `Foo`, which is required by `{coroutine@$DIR/drop-yield-twice.rs:7:30: 7:32}: Send` note: coroutine is not `Send` as this value is used across a yield --> $DIR/drop-yield-twice.rs:9:9 | diff --git a/tests/ui/coroutine/dropck-resume.rs b/tests/ui/coroutine/dropck-resume.rs index 07ca4d37aba69..df014400f00fe 100644 --- a/tests/ui/coroutine/dropck-resume.rs +++ b/tests/ui/coroutine/dropck-resume.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; @@ -16,7 +16,8 @@ fn drop_using_coroutine() -> i32 { let z = &mut y; let r; { - let mut g = move |r| { + let mut g = #[coroutine] + move |r| { let _s = SetToNone(r); yield; }; diff --git a/tests/ui/coroutine/dropck-resume.stderr b/tests/ui/coroutine/dropck-resume.stderr index aa6e423c7604c..e9243ffa41e5d 100644 --- a/tests/ui/coroutine/dropck-resume.stderr +++ b/tests/ui/coroutine/dropck-resume.stderr @@ -1,5 +1,5 @@ error[E0502]: cannot borrow `y` as immutable because it is also borrowed as mutable - --> $DIR/dropck-resume.rs:25:13 + --> $DIR/dropck-resume.rs:26:13 | LL | let z = &mut y; | ------ mutable borrow occurs here diff --git a/tests/ui/coroutine/dropck.rs b/tests/ui/coroutine/dropck.rs index 450361c8dd03b..9331c1fa1d580 100644 --- a/tests/ui/coroutine/dropck.rs +++ b/tests/ui/coroutine/dropck.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::cell::RefCell; use std::ops::Coroutine; @@ -10,7 +10,8 @@ fn main() { let ref_ = Box::leak(Box::new(Some(cell.borrow_mut()))); //~^ ERROR `*cell` does not live long enough [E0597] // the upvar is the non-dropck `&mut Option>`. - gen = || { + gen = #[coroutine] + || { // but the coroutine can use it to drop a `Ref<'a, i32>`. let _d = ref_.take(); //~ ERROR `ref_` does not live long enough yield; diff --git a/tests/ui/coroutine/dropck.stderr b/tests/ui/coroutine/dropck.stderr index 241d6dfe0a169..d6cd7c4cd47a8 100644 --- a/tests/ui/coroutine/dropck.stderr +++ b/tests/ui/coroutine/dropck.stderr @@ -16,10 +16,10 @@ LL | } = note: values in a scope are dropped in the opposite order they are defined error[E0597]: `ref_` does not live long enough - --> $DIR/dropck.rs:15:18 + --> $DIR/dropck.rs:16:18 | -LL | gen = || { - | -- value captured here by coroutine +LL | || { + | -- value captured here by coroutine LL | // but the coroutine can use it to drop a `Ref<'a, i32>`. LL | let _d = ref_.take(); | ^^^^ borrowed value does not live long enough diff --git a/tests/ui/coroutine/gen_block.e2024.stderr b/tests/ui/coroutine/gen_block.e2024.stderr index 2b9eb4a820b65..322259cf2f84f 100644 --- a/tests/ui/coroutine/gen_block.e2024.stderr +++ b/tests/ui/coroutine/gen_block.e2024.stderr @@ -1,5 +1,25 @@ +error[E0658]: the `#[coroutines]` attribute is an experimental feature + --> $DIR/gen_block.rs:20:13 + | +LL | let _ = #[coroutine] || yield true; + | ^^^^^^^^^^^^ + | + = note: see issue #43122 for more information + = help: add `#![feature(coroutines)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error[E0658]: the `#[coroutines]` attribute is an experimental feature + --> $DIR/gen_block.rs:24:13 + | +LL | let _ = #[coroutine] || {}; + | ^^^^^^^^^^^^ + | + = note: see issue #43122 for more information + = help: add `#![feature(coroutines)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + error[E0658]: yield syntax is experimental - --> $DIR/gen_block.rs:15:16 + --> $DIR/gen_block.rs:16:16 | LL | let _ = || yield true; | ^^^^^^^^^^ @@ -8,13 +28,34 @@ LL | let _ = || yield true; = help: add `#![feature(coroutines)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/gen_block.rs:16:16 + | +LL | let _ = || yield true; + | ^^^^^^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | let _ = #[coroutine] || yield true; + | ++++++++++++ + +error[E0658]: yield syntax is experimental + --> $DIR/gen_block.rs:20:29 + | +LL | let _ = #[coroutine] || yield true; + | ^^^^^^^^^^ + | + = note: see issue #43122 for more information + = help: add `#![feature(coroutines)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + error[E0282]: type annotations needed - --> $DIR/gen_block.rs:6:13 + --> $DIR/gen_block.rs:7:13 | LL | let x = gen {}; | ^^^^^^ cannot infer type -error: aborting due to 2 previous errors +error: aborting due to 6 previous errors Some errors have detailed explanations: E0282, E0658. For more information about an error, try `rustc --explain E0282`. diff --git a/tests/ui/coroutine/gen_block.none.stderr b/tests/ui/coroutine/gen_block.none.stderr index 78a8c5e798ad8..64fa2be003de5 100644 --- a/tests/ui/coroutine/gen_block.none.stderr +++ b/tests/ui/coroutine/gen_block.none.stderr @@ -1,5 +1,5 @@ error: expected identifier, found reserved keyword `yield` - --> $DIR/gen_block.rs:9:19 + --> $DIR/gen_block.rs:10:19 | LL | let y = gen { yield 42 }; | --- ^^^^^ expected identifier, found reserved keyword @@ -7,25 +7,25 @@ LL | let y = gen { yield 42 }; | while parsing this struct error[E0422]: cannot find struct, variant or union type `gen` in this scope - --> $DIR/gen_block.rs:6:13 + --> $DIR/gen_block.rs:7:13 | LL | let x = gen {}; | ^^^ not found in this scope error[E0422]: cannot find struct, variant or union type `gen` in this scope - --> $DIR/gen_block.rs:9:13 + --> $DIR/gen_block.rs:10:13 | LL | let y = gen { yield 42 }; | ^^^ not found in this scope error[E0422]: cannot find struct, variant or union type `gen` in this scope - --> $DIR/gen_block.rs:12:5 + --> $DIR/gen_block.rs:13:5 | LL | gen {}; | ^^^ not found in this scope error[E0658]: yield syntax is experimental - --> $DIR/gen_block.rs:15:16 + --> $DIR/gen_block.rs:16:16 | LL | let _ = || yield true; | ^^^^^^^^^^ @@ -35,17 +35,69 @@ LL | let _ = || yield true; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: yield syntax is experimental - --> $DIR/gen_block.rs:15:16 + --> $DIR/gen_block.rs:20:29 + | +LL | let _ = #[coroutine] || yield true; + | ^^^^^^^^^^ + | + = note: see issue #43122 for more information + = help: add `#![feature(coroutines)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error[E0658]: the `#[coroutines]` attribute is an experimental feature + --> $DIR/gen_block.rs:20:13 + | +LL | let _ = #[coroutine] || yield true; + | ^^^^^^^^^^^^ + | + = note: see issue #43122 for more information + = help: add `#![feature(coroutines)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error[E0658]: the `#[coroutines]` attribute is an experimental feature + --> $DIR/gen_block.rs:24:13 + | +LL | let _ = #[coroutine] || {}; + | ^^^^^^^^^^^^ + | + = note: see issue #43122 for more information + = help: add `#![feature(coroutines)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error[E0658]: yield syntax is experimental + --> $DIR/gen_block.rs:16:16 + | +LL | let _ = || yield true; + | ^^^^^^^^^^ + | + = note: see issue #43122 for more information + = help: add `#![feature(coroutines)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/gen_block.rs:16:16 | LL | let _ = || yield true; | ^^^^^^^^^^ | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | let _ = #[coroutine] || yield true; + | ++++++++++++ + +error[E0658]: yield syntax is experimental + --> $DIR/gen_block.rs:20:29 + | +LL | let _ = #[coroutine] || yield true; + | ^^^^^^^^^^ + | = note: see issue #43122 for more information = help: add `#![feature(coroutines)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -error: aborting due to 6 previous errors +error: aborting due to 11 previous errors Some errors have detailed explanations: E0422, E0658. For more information about an error, try `rustc --explain E0422`. diff --git a/tests/ui/coroutine/gen_block.rs b/tests/ui/coroutine/gen_block.rs index f6a775aa66199..7e87a572b9095 100644 --- a/tests/ui/coroutine/gen_block.rs +++ b/tests/ui/coroutine/gen_block.rs @@ -1,6 +1,7 @@ //@ revisions: e2024 none //@[e2024] compile-flags: --edition 2024 -Zunstable-options #![cfg_attr(e2024, feature(gen_blocks))] +#![feature(stmt_expr_attributes)] fn main() { let x = gen {}; @@ -14,4 +15,12 @@ fn main() { let _ = || yield true; //[none]~ ERROR yield syntax is experimental //~^ ERROR yield syntax is experimental + //~^^ ERROR `yield` can only be used in + + let _ = #[coroutine] || yield true; //[none]~ ERROR yield syntax is experimental + //~^ ERROR `#[coroutines]` attribute is an experimental feature + //~^^ ERROR yield syntax is experimental + + let _ = #[coroutine] || {}; + //~^ ERROR `#[coroutines]` attribute is an experimental feature } diff --git a/tests/ui/coroutine/issue-102645.rs b/tests/ui/coroutine/issue-102645.rs index a0263510e1368..ccf82c3606ac2 100644 --- a/tests/ui/coroutine/issue-102645.rs +++ b/tests/ui/coroutine/issue-102645.rs @@ -1,11 +1,12 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; fn main() { let mut a = 5; - let mut b = || { + let mut b = #[coroutine] + || { let d = 6; yield; _zzz(); // #break diff --git a/tests/ui/coroutine/issue-102645.stderr b/tests/ui/coroutine/issue-102645.stderr index 7a3b7f2b04c34..ab5e4a8459f4f 100644 --- a/tests/ui/coroutine/issue-102645.stderr +++ b/tests/ui/coroutine/issue-102645.stderr @@ -1,5 +1,5 @@ error[E0061]: this method takes 1 argument but 0 arguments were supplied - --> $DIR/issue-102645.rs:14:22 + --> $DIR/issue-102645.rs:15:22 | LL | Pin::new(&mut b).resume(); | ^^^^^^-- an argument of type `()` is missing diff --git a/tests/ui/coroutine/issue-105084.rs b/tests/ui/coroutine/issue-105084.rs index 7801f1bcea0db..4e40bc127d780 100644 --- a/tests/ui/coroutine/issue-105084.rs +++ b/tests/ui/coroutine/issue-105084.rs @@ -11,7 +11,8 @@ fn copy(x: T) -> T { } fn main() { - let mut g = || { + let mut g = #[coroutine] + || { // This is desuraged as 4 stages: // - allocate a `*mut u8` with `exchange_malloc`; // - create a Box that is ignored for trait computations; diff --git a/tests/ui/coroutine/issue-105084.stderr b/tests/ui/coroutine/issue-105084.stderr index c8a6522dbd938..6b1701f0c2abc 100644 --- a/tests/ui/coroutine/issue-105084.stderr +++ b/tests/ui/coroutine/issue-105084.stderr @@ -1,8 +1,8 @@ error[E0382]: borrow of moved value: `g` - --> $DIR/issue-105084.rs:37:14 + --> $DIR/issue-105084.rs:38:14 | -LL | let mut g = || { - | ----- move occurs because `g` has type `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}`, which does not implement the `Copy` trait +LL | let mut g = #[coroutine] + | ----- move occurs because `g` has type `{coroutine@$DIR/issue-105084.rs:15:5: 15:7}`, which does not implement the `Copy` trait ... LL | let mut h = copy(g); | - value moved here @@ -22,17 +22,17 @@ help: consider cloning the value if the performance cost is acceptable LL | let mut h = copy(g.clone()); | ++++++++ -error[E0277]: the trait bound `Box<(i32, ())>: Copy` is not satisfied in `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}` - --> $DIR/issue-105084.rs:31:17 +error[E0277]: the trait bound `Box<(i32, ())>: Copy` is not satisfied in `{coroutine@$DIR/issue-105084.rs:15:5: 15:7}` + --> $DIR/issue-105084.rs:32:17 | -LL | let mut g = || { - | -- within this `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}` +LL | || { + | -- within this `{coroutine@$DIR/issue-105084.rs:15:5: 15:7}` ... LL | let mut h = copy(g); - | ^^^^^^^ within `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}`, the trait `Copy` is not implemented for `Box<(i32, ())>`, which is required by `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}: Copy` + | ^^^^^^^ within `{coroutine@$DIR/issue-105084.rs:15:5: 15:7}`, the trait `Copy` is not implemented for `Box<(i32, ())>`, which is required by `{coroutine@$DIR/issue-105084.rs:15:5: 15:7}: Copy` | note: coroutine does not implement `Copy` as this value is used across a yield - --> $DIR/issue-105084.rs:21:22 + --> $DIR/issue-105084.rs:22:22 | LL | Box::new((5, yield)); | -------------^^^^^-- diff --git a/tests/ui/coroutine/issue-110929-coroutine-conflict-error-ice.rs b/tests/ui/coroutine/issue-110929-coroutine-conflict-error-ice.rs index 3d372ac9110c9..300c8fe6d4618 100644 --- a/tests/ui/coroutine/issue-110929-coroutine-conflict-error-ice.rs +++ b/tests/ui/coroutine/issue-110929-coroutine-conflict-error-ice.rs @@ -1,11 +1,12 @@ //@ edition:2021 //@ check-pass -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn main() { let x = &mut (); || { - let _c = || yield *&mut *x; + let _c = #[coroutine] + || yield *&mut *x; || _ = &mut *x; }; } diff --git a/tests/ui/coroutine/issue-113279.rs b/tests/ui/coroutine/issue-113279.rs index f251c924c1331..98617af105c35 100644 --- a/tests/ui/coroutine/issue-113279.rs +++ b/tests/ui/coroutine/issue-113279.rs @@ -1,4 +1,4 @@ -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] // `foo` attempts to dereference `""`, which results in an error being reported. Later, the // coroutine transform for `foo` then produces a union which contains a `str` type - unions should @@ -9,7 +9,8 @@ // makes sure that doesn't happen again. fn foo() { - let _y = static || { + let _y = #[coroutine] + static || { let x = &mut 0; *{ yield; diff --git a/tests/ui/coroutine/issue-113279.stderr b/tests/ui/coroutine/issue-113279.stderr index cc9b64ef9ac2f..a80fe670188d6 100644 --- a/tests/ui/coroutine/issue-113279.stderr +++ b/tests/ui/coroutine/issue-113279.stderr @@ -1,11 +1,11 @@ error[E0161]: cannot move a value of type `str` - --> $DIR/issue-113279.rs:17:20 + --> $DIR/issue-113279.rs:18:20 | LL | } += match { *"" }.len() { | ^^^^^^^ the size of `str` cannot be statically determined error[E0507]: cannot move out of a shared reference - --> $DIR/issue-113279.rs:17:22 + --> $DIR/issue-113279.rs:18:22 | LL | } += match { *"" }.len() { | ^^^ move occurs because value has type `str`, which does not implement the `Copy` trait diff --git a/tests/ui/coroutine/issue-44197.rs b/tests/ui/coroutine/issue-44197.rs index e18bcc2c996f2..0240f7a7eaac2 100644 --- a/tests/ui/coroutine/issue-44197.rs +++ b/tests/ui/coroutine/issue-44197.rs @@ -10,7 +10,7 @@ fn foo(_: &str) -> String { } fn bar(baz: String) -> impl Coroutine<(), Yield = String, Return = ()> { - move || { + #[coroutine] move || { yield foo(&baz); } } @@ -20,7 +20,7 @@ fn foo2(_: &str) -> Result { } fn bar2(baz: String) -> impl Coroutine<(), Yield = String, Return = ()> { - move || { + #[coroutine] move || { if let Ok(quux) = foo2(&baz) { yield quux; } diff --git a/tests/ui/coroutine/issue-45729-unsafe-in-coroutine.rs b/tests/ui/coroutine/issue-45729-unsafe-in-coroutine.rs index dab9c81bc8fe8..d90886b6b1d6e 100644 --- a/tests/ui/coroutine/issue-45729-unsafe-in-coroutine.rs +++ b/tests/ui/coroutine/issue-45729-unsafe-in-coroutine.rs @@ -1,7 +1,8 @@ -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn main() { - let _ = || { + let _ = #[coroutine] + || { *(1 as *mut u32) = 42; //~^ ERROR dereference of raw pointer is unsafe yield; diff --git a/tests/ui/coroutine/issue-45729-unsafe-in-coroutine.stderr b/tests/ui/coroutine/issue-45729-unsafe-in-coroutine.stderr index 19949b4293962..f99c295bb9ebf 100644 --- a/tests/ui/coroutine/issue-45729-unsafe-in-coroutine.stderr +++ b/tests/ui/coroutine/issue-45729-unsafe-in-coroutine.stderr @@ -1,5 +1,5 @@ error[E0133]: dereference of raw pointer is unsafe and requires unsafe function or block - --> $DIR/issue-45729-unsafe-in-coroutine.rs:5:9 + --> $DIR/issue-45729-unsafe-in-coroutine.rs:6:9 | LL | *(1 as *mut u32) = 42; | ^^^^^^^^^^^^^^^^ dereference of raw pointer diff --git a/tests/ui/coroutine/issue-48048.rs b/tests/ui/coroutine/issue-48048.rs index b61b7c7707235..75664f20198b5 100644 --- a/tests/ui/coroutine/issue-48048.rs +++ b/tests/ui/coroutine/issue-48048.rs @@ -3,7 +3,7 @@ fn main() { let x = (|_| {},); - || { + #[coroutine] || { let x = x; x.0({ //~ ERROR borrow may still be in use when coroutine yields diff --git a/tests/ui/coroutine/issue-52304.rs b/tests/ui/coroutine/issue-52304.rs index 01ed181ab1dcb..552bc0028ee04 100644 --- a/tests/ui/coroutine/issue-52304.rs +++ b/tests/ui/coroutine/issue-52304.rs @@ -5,6 +5,7 @@ use std::ops::Coroutine; pub fn example() -> impl Coroutine { + #[coroutine] || yield &1 } diff --git a/tests/ui/coroutine/issue-52398.rs b/tests/ui/coroutine/issue-52398.rs index 826ce6b9d9b3f..f8b2faf4eabf0 100644 --- a/tests/ui/coroutine/issue-52398.rs +++ b/tests/ui/coroutine/issue-52398.rs @@ -14,14 +14,14 @@ impl A { fn main() { // Test that the MIR local with type &A created for the auto-borrow adjustment // is caught by typeck - move || { //~ WARN unused coroutine that must be used + #[coroutine] move || { //~ WARN unused coroutine that must be used A.test(yield); }; // Test that the std::cell::Ref temporary returned from the `borrow` call // is caught by typeck let y = RefCell::new(true); - static move || { //~ WARN unused coroutine that must be used + #[coroutine] static move || { //~ WARN unused coroutine that must be used yield *y.borrow(); return "Done"; }; diff --git a/tests/ui/coroutine/issue-52398.stderr b/tests/ui/coroutine/issue-52398.stderr index 18d816da4c611..806690cc33276 100644 --- a/tests/ui/coroutine/issue-52398.stderr +++ b/tests/ui/coroutine/issue-52398.stderr @@ -1,7 +1,8 @@ warning: unused coroutine that must be used - --> $DIR/issue-52398.rs:17:5 + --> $DIR/issue-52398.rs:17:18 | -LL | / move || { +LL | #[coroutine] move || { + | __________________^ LL | | A.test(yield); LL | | }; | |_____^ @@ -10,9 +11,10 @@ LL | | }; = note: `#[warn(unused_must_use)]` on by default warning: unused coroutine that must be used - --> $DIR/issue-52398.rs:24:5 + --> $DIR/issue-52398.rs:24:18 | -LL | / static move || { +LL | #[coroutine] static move || { + | __________________^ LL | | yield *y.borrow(); LL | | return "Done"; LL | | }; diff --git a/tests/ui/coroutine/issue-53548.rs b/tests/ui/coroutine/issue-53548.rs index 6d55994137ff9..3b8dff2be28c1 100644 --- a/tests/ui/coroutine/issue-53548.rs +++ b/tests/ui/coroutine/issue-53548.rs @@ -17,7 +17,7 @@ // //@ check-pass -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] use std::cell::RefCell; use std::rc::Rc; @@ -29,7 +29,7 @@ struct Store { } fn main() { - Box::new(static move || { + Box::new(#[coroutine] static move || { let store = Store::> { inner: Default::default(), }; diff --git a/tests/ui/coroutine/issue-57017.rs b/tests/ui/coroutine/issue-57017.rs index b83d916932abd..19cd80ab4a653 100644 --- a/tests/ui/coroutine/issue-57017.rs +++ b/tests/ui/coroutine/issue-57017.rs @@ -1,5 +1,5 @@ //@ build-pass -#![feature(coroutines, negative_impls)] +#![feature(coroutines, negative_impls, stmt_expr_attributes)] #![allow(dropping_references, dropping_copy_types)] macro_rules! type_combinations { @@ -21,7 +21,7 @@ macro_rules! type_combinations { // This is the same bug as issue 57017, but using yield instead of await { - let g = move || match drop(&$name::unsync::Client::default()) { + let g = #[coroutine] move || match drop(&$name::unsync::Client::default()) { _status => yield, }; assert_send(g); @@ -30,7 +30,7 @@ macro_rules! type_combinations { // This tests that `Client` is properly considered to be dropped after moving it into the // function. { - let g = move || match drop($name::unsend::Client::default()) { + let g = #[coroutine] move || match drop($name::unsend::Client::default()) { _status => yield, }; assert_send(g); diff --git a/tests/ui/coroutine/issue-57084.rs b/tests/ui/coroutine/issue-57084.rs index 51b0c8e1de96c..2df60550e0378 100644 --- a/tests/ui/coroutine/issue-57084.rs +++ b/tests/ui/coroutine/issue-57084.rs @@ -8,7 +8,7 @@ use std::ops::Coroutine; fn with(f: F) -> impl Coroutine where F: Fn() -> () { - move || { + #[coroutine] move || { loop { match f() { _ => yield, @@ -19,7 +19,7 @@ where F: Fn() -> () fn main() { let data = &vec![1]; - || { //~ WARN unused coroutine that must be used + #[coroutine] || { //~ WARN unused coroutine that must be used let _to_pin = with(move || println!("{:p}", data)); loop { yield diff --git a/tests/ui/coroutine/issue-57084.stderr b/tests/ui/coroutine/issue-57084.stderr index 9f5b79a6ae8af..81bd27da91905 100644 --- a/tests/ui/coroutine/issue-57084.stderr +++ b/tests/ui/coroutine/issue-57084.stderr @@ -1,7 +1,8 @@ warning: unused coroutine that must be used - --> $DIR/issue-57084.rs:22:5 + --> $DIR/issue-57084.rs:22:18 | -LL | / || { +LL | #[coroutine] || { + | __________________^ LL | | let _to_pin = with(move || println!("{:p}", data)); LL | | loop { LL | | yield diff --git a/tests/ui/coroutine/issue-57478.rs b/tests/ui/coroutine/issue-57478.rs index 5e479aaa9c1b3..494c2ee9843eb 100644 --- a/tests/ui/coroutine/issue-57478.rs +++ b/tests/ui/coroutine/issue-57478.rs @@ -1,16 +1,19 @@ //@ check-pass -#![feature(negative_impls, coroutines)] +#![feature(negative_impls, coroutines, stmt_expr_attributes)] struct Foo; impl !Send for Foo {} fn main() { - assert_send(|| { - let guard = Foo; - drop(guard); - yield; - }) + assert_send( + #[coroutine] + || { + let guard = Foo; + drop(guard); + yield; + }, + ) } fn assert_send(_: T) {} diff --git a/tests/ui/coroutine/issue-58888.rs b/tests/ui/coroutine/issue-58888.rs index ce45f22dd6ef3..6266f97ce8c46 100644 --- a/tests/ui/coroutine/issue-58888.rs +++ b/tests/ui/coroutine/issue-58888.rs @@ -13,7 +13,7 @@ impl Database { } fn check_connection(&self) -> impl Coroutine + '_ { - move || { + #[coroutine] move || { let iter = self.get_connection(); for i in iter { yield i diff --git a/tests/ui/coroutine/issue-61442-stmt-expr-with-drop.rs b/tests/ui/coroutine/issue-61442-stmt-expr-with-drop.rs index 6280b777201fb..6f513c250a554 100644 --- a/tests/ui/coroutine/issue-61442-stmt-expr-with-drop.rs +++ b/tests/ui/coroutine/issue-61442-stmt-expr-with-drop.rs @@ -4,7 +4,7 @@ //@ check-pass //@ edition:2018 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; @@ -14,12 +14,14 @@ async fn drop_and_await() { } fn drop_and_yield() { - let x = || { + let x = #[coroutine] + || { String::new(); yield; }; Box::pin(x).as_mut().resume(()); - let y = static || { + let y = #[coroutine] + static || { String::new(); yield; }; diff --git a/tests/ui/coroutine/issue-64620-yield-array-element.rs b/tests/ui/coroutine/issue-64620-yield-array-element.rs index a9307d306a617..0d898d014e80b 100644 --- a/tests/ui/coroutine/issue-64620-yield-array-element.rs +++ b/tests/ui/coroutine/issue-64620-yield-array-element.rs @@ -4,6 +4,7 @@ pub fn crash(arr: [usize; 1]) { yield arr[0]; //~ ERROR: yield expression outside of coroutine literal + //~^ ERROR: `yield` can only be used in } fn main() {} diff --git a/tests/ui/coroutine/issue-64620-yield-array-element.stderr b/tests/ui/coroutine/issue-64620-yield-array-element.stderr index 347532fb7193e..1c030c5248e1e 100644 --- a/tests/ui/coroutine/issue-64620-yield-array-element.stderr +++ b/tests/ui/coroutine/issue-64620-yield-array-element.stderr @@ -1,9 +1,20 @@ +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/issue-64620-yield-array-element.rs:6:5 + | +LL | yield arr[0]; + | ^^^^^^^^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | #[coroutine] pub fn crash(arr: [usize; 1]) { + | ++++++++++++ + error[E0627]: yield expression outside of coroutine literal --> $DIR/issue-64620-yield-array-element.rs:6:5 | LL | yield arr[0]; | ^^^^^^^^^^^^ -error: aborting due to 1 previous error +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0627`. diff --git a/tests/ui/coroutine/issue-68112.rs b/tests/ui/coroutine/issue-68112.rs index ccec2acc97623..b296772c90577 100644 --- a/tests/ui/coroutine/issue-68112.rs +++ b/tests/ui/coroutine/issue-68112.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::{ cell::RefCell, @@ -30,7 +30,7 @@ fn make_non_send_coroutine() -> impl Coroutine>> { } fn test1() { - let send_gen = || { + let send_gen = #[coroutine] || { let _non_send_gen = make_non_send_coroutine(); //~^ NOTE not `Send` yield; @@ -46,7 +46,7 @@ fn test1() { pub fn make_gen2(t: T) -> impl Coroutine { //~^ NOTE appears within the type //~| NOTE expansion of desugaring - || { //~ NOTE used within this coroutine + #[coroutine] || { //~ NOTE used within this coroutine yield; t } @@ -57,7 +57,7 @@ fn make_non_send_coroutine2() -> impl Coroutine>> { // } fn test2() { - let send_gen = || { //~ NOTE used within this coroutine + let send_gen = #[coroutine] || { //~ NOTE used within this coroutine let _non_send_gen = make_non_send_coroutine2(); yield; }; diff --git a/tests/ui/coroutine/issue-68112.stderr b/tests/ui/coroutine/issue-68112.stderr index 443195d36a30a..bcfcb5ec6e608 100644 --- a/tests/ui/coroutine/issue-68112.stderr +++ b/tests/ui/coroutine/issue-68112.stderr @@ -4,7 +4,7 @@ error: coroutine cannot be sent between threads safely LL | require_send(send_gen); | ^^^^^^^^^^^^^^^^^^^^^^ coroutine is not `Send` | - = help: the trait `Sync` is not implemented for `RefCell`, which is required by `{coroutine@$DIR/issue-68112.rs:33:20: 33:22}: Send` + = help: the trait `Sync` is not implemented for `RefCell`, which is required by `{coroutine@$DIR/issue-68112.rs:33:33: 33:35}: Send` = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead note: coroutine is not `Send` as this value is used across a yield --> $DIR/issue-68112.rs:36:9 @@ -26,14 +26,14 @@ error[E0277]: `RefCell` cannot be shared between threads safely LL | require_send(send_gen); | ^^^^^^^^^^^^^^^^^^^^^^ `RefCell` cannot be shared between threads safely | - = help: the trait `Sync` is not implemented for `RefCell`, which is required by `{coroutine@$DIR/issue-68112.rs:60:20: 60:22}: Send` + = help: the trait `Sync` is not implemented for `RefCell`, which is required by `{coroutine@$DIR/issue-68112.rs:60:33: 60:35}: Send` = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead = note: required for `Arc>` to implement `Send` note: required because it's used within this coroutine - --> $DIR/issue-68112.rs:49:5 + --> $DIR/issue-68112.rs:49:18 | -LL | || { - | ^^ +LL | #[coroutine] || { + | ^^ note: required because it appears within the type `impl Coroutine>>` --> $DIR/issue-68112.rs:46:30 | @@ -45,10 +45,10 @@ note: required because it appears within the type `impl Coroutine impl Coroutine>> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: required because it's used within this coroutine - --> $DIR/issue-68112.rs:60:20 + --> $DIR/issue-68112.rs:60:33 | -LL | let send_gen = || { - | ^^ +LL | let send_gen = #[coroutine] || { + | ^^ note: required by a bound in `require_send` --> $DIR/issue-68112.rs:22:25 | diff --git a/tests/ui/coroutine/issue-69017.rs b/tests/ui/coroutine/issue-69017.rs index 09bbf63a986e5..bf69e1dfdb13f 100644 --- a/tests/ui/coroutine/issue-69017.rs +++ b/tests/ui/coroutine/issue-69017.rs @@ -10,6 +10,7 @@ use std::ops::Coroutine; fn gen() -> impl Coroutine { + #[coroutine] |_: usize| { println!("-> {}", yield); } diff --git a/tests/ui/coroutine/issue-69039.rs b/tests/ui/coroutine/issue-69039.rs index fd12414c3d851..13cb50e582817 100644 --- a/tests/ui/coroutine/issue-69039.rs +++ b/tests/ui/coroutine/issue-69039.rs @@ -9,6 +9,7 @@ fn mkstr(my_name: String, my_mood: String) -> String { } fn my_scenario() -> impl Coroutine { + #[coroutine] |_arg: String| { let my_name = yield "What is your name?"; let my_mood = yield "How are you feeling?"; diff --git a/tests/ui/coroutine/issue-87142.rs b/tests/ui/coroutine/issue-87142.rs index f5c3805842c51..6c22ba3dd7560 100644 --- a/tests/ui/coroutine/issue-87142.rs +++ b/tests/ui/coroutine/issue-87142.rs @@ -22,6 +22,7 @@ pub struct Context { impl CoroutineProviderAlt for () { type Coro = impl Coroutine<(), Return = (), Yield = ()>; fn start(ctx: Context) -> Self::Coro { + #[coroutine] move || { match ctx { _ => (), diff --git a/tests/ui/coroutine/issue-88653.rs b/tests/ui/coroutine/issue-88653.rs index ec4c205475877..3afd12a209379 100644 --- a/tests/ui/coroutine/issue-88653.rs +++ b/tests/ui/coroutine/issue-88653.rs @@ -11,6 +11,7 @@ fn foo(bar: bool) -> impl Coroutine<(bool,)> { //~| NOTE: expected coroutine signature `fn((bool,)) -> _` //~| NOTE: in this expansion of desugaring of `impl Trait` //~| NOTE: in this expansion of desugaring of `impl Trait` + #[coroutine] |bar| { //~^ NOTE: found signature defined here if bar { diff --git a/tests/ui/coroutine/issue-91477.rs b/tests/ui/coroutine/issue-91477.rs index c98546f7971cf..c215fd7948f33 100644 --- a/tests/ui/coroutine/issue-91477.rs +++ b/tests/ui/coroutine/issue-91477.rs @@ -2,6 +2,7 @@ fn foo() -> impl Sized { yield 1; //~ ERROR E0627 + //~^ ERROR: `yield` can only be used in } fn main() {} diff --git a/tests/ui/coroutine/issue-91477.stderr b/tests/ui/coroutine/issue-91477.stderr index ca8e43d8a26db..5e2151c4c35fe 100644 --- a/tests/ui/coroutine/issue-91477.stderr +++ b/tests/ui/coroutine/issue-91477.stderr @@ -1,9 +1,20 @@ +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/issue-91477.rs:4:5 + | +LL | yield 1; + | ^^^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | #[coroutine] fn foo() -> impl Sized { + | ++++++++++++ + error[E0627]: yield expression outside of coroutine literal --> $DIR/issue-91477.rs:4:5 | LL | yield 1; | ^^^^^^^ -error: aborting due to 1 previous error +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0627`. diff --git a/tests/ui/coroutine/iterator-count.rs b/tests/ui/coroutine/iterator-count.rs index bb202ab2d33ed..1ca8ceaed2a9e 100644 --- a/tests/ui/coroutine/iterator-count.rs +++ b/tests/ui/coroutine/iterator-count.rs @@ -21,6 +21,7 @@ impl + Unpin> Iterator for W { } fn test() -> impl Coroutine<(), Return = (), Yield = u8> + Unpin { + #[coroutine] || { for i in 1..6 { yield i @@ -32,6 +33,7 @@ fn main() { let end = 11; let closure_test = |start| { + #[coroutine] move || { for i in start..end { yield i diff --git a/tests/ui/coroutine/live-upvar-across-yield.rs b/tests/ui/coroutine/live-upvar-across-yield.rs index 86c4716c9516d..d13d480dcdcce 100644 --- a/tests/ui/coroutine/live-upvar-across-yield.rs +++ b/tests/ui/coroutine/live-upvar-across-yield.rs @@ -1,13 +1,13 @@ //@ run-pass -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; fn main() { let b = |_| 3; - let mut a = || { + let mut a = #[coroutine] || { b(yield); }; Pin::new(&mut a).resume(()); diff --git a/tests/ui/coroutine/match-bindings.rs b/tests/ui/coroutine/match-bindings.rs index 9ea1deaab3623..2a0cd9af9f382 100644 --- a/tests/ui/coroutine/match-bindings.rs +++ b/tests/ui/coroutine/match-bindings.rs @@ -9,7 +9,7 @@ enum Enum { } fn main() { - || { //~ WARN unused coroutine that must be used + #[coroutine] || { //~ WARN unused coroutine that must be used loop { if let true = true { match Enum::A(String::new()) { diff --git a/tests/ui/coroutine/match-bindings.stderr b/tests/ui/coroutine/match-bindings.stderr index a7aa6eadb95f1..5525bfed1165b 100644 --- a/tests/ui/coroutine/match-bindings.stderr +++ b/tests/ui/coroutine/match-bindings.stderr @@ -1,7 +1,8 @@ warning: unused coroutine that must be used - --> $DIR/match-bindings.rs:12:5 + --> $DIR/match-bindings.rs:12:18 | -LL | / || { +LL | #[coroutine] || { + | __________________^ LL | | loop { LL | | if let true = true { LL | | match Enum::A(String::new()) { diff --git a/tests/ui/coroutine/missing_coroutine_attr_suggestion.fixed b/tests/ui/coroutine/missing_coroutine_attr_suggestion.fixed new file mode 100644 index 0000000000000..128f09a118439 --- /dev/null +++ b/tests/ui/coroutine/missing_coroutine_attr_suggestion.fixed @@ -0,0 +1,8 @@ +//@ run-rustfix + +#![feature(coroutines, gen_blocks, stmt_expr_attributes)] + +fn main() { + let _ = #[coroutine] || yield; + //~^ ERROR `yield` can only be used +} diff --git a/tests/ui/coroutine/missing_coroutine_attr_suggestion.rs b/tests/ui/coroutine/missing_coroutine_attr_suggestion.rs new file mode 100644 index 0000000000000..dc95259149609 --- /dev/null +++ b/tests/ui/coroutine/missing_coroutine_attr_suggestion.rs @@ -0,0 +1,8 @@ +//@ run-rustfix + +#![feature(coroutines, gen_blocks, stmt_expr_attributes)] + +fn main() { + let _ = || yield; + //~^ ERROR `yield` can only be used +} diff --git a/tests/ui/coroutine/missing_coroutine_attr_suggestion.stderr b/tests/ui/coroutine/missing_coroutine_attr_suggestion.stderr new file mode 100644 index 0000000000000..8d92471a361cd --- /dev/null +++ b/tests/ui/coroutine/missing_coroutine_attr_suggestion.stderr @@ -0,0 +1,13 @@ +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/missing_coroutine_attr_suggestion.rs:6:16 + | +LL | let _ = || yield; + | ^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | let _ = #[coroutine] || yield; + | ++++++++++++ + +error: aborting due to 1 previous error + diff --git a/tests/ui/coroutine/nested_coroutine.rs b/tests/ui/coroutine/nested_coroutine.rs index 7ff97abf4bb1f..2c12ab2adad41 100644 --- a/tests/ui/coroutine/nested_coroutine.rs +++ b/tests/ui/coroutine/nested_coroutine.rs @@ -1,13 +1,15 @@ //@ run-pass -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; fn main() { - let _coroutine = || { - let mut sub_coroutine = || { + let _coroutine = #[coroutine] + || { + let mut sub_coroutine = #[coroutine] + || { yield 2; }; diff --git a/tests/ui/coroutine/niche-in-coroutine.rs b/tests/ui/coroutine/niche-in-coroutine.rs index 45b920ab9273e..117ee9e6f0386 100644 --- a/tests/ui/coroutine/niche-in-coroutine.rs +++ b/tests/ui/coroutine/niche-in-coroutine.rs @@ -2,7 +2,7 @@ //@ run-pass -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] use std::mem::size_of_val; @@ -10,7 +10,7 @@ fn take(_: T) {} fn main() { let x = false; - let gen1 = || { + let gen1 = #[coroutine] || { yield; take(x); }; diff --git a/tests/ui/coroutine/non-static-is-unpin.rs b/tests/ui/coroutine/non-static-is-unpin.rs index 616a78d5fe2a2..b28bf1977145b 100644 --- a/tests/ui/coroutine/non-static-is-unpin.rs +++ b/tests/ui/coroutine/non-static-is-unpin.rs @@ -3,7 +3,7 @@ //@[next] compile-flags: -Znext-solver //@ run-pass -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] #![allow(dropping_copy_types)] use std::marker::PhantomPinned; @@ -14,7 +14,7 @@ fn assert_unpin(_: G) { fn main() { // Even though this coroutine holds a `PhantomPinned` in its environment, it // remains `Unpin`. - assert_unpin(|| { + assert_unpin(#[coroutine] || { let pinned = PhantomPinned; yield; drop(pinned); diff --git a/tests/ui/coroutine/not-send-sync.rs b/tests/ui/coroutine/not-send-sync.rs index dd6182c10de09..a46dcd14e8825 100644 --- a/tests/ui/coroutine/not-send-sync.rs +++ b/tests/ui/coroutine/not-send-sync.rs @@ -1,4 +1,4 @@ -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![feature(negative_impls)] struct NotSend; @@ -11,14 +11,14 @@ fn main() { fn assert_sync(_: T) {} fn assert_send(_: T) {} - assert_sync(|| { + assert_sync(#[coroutine] || { //~^ ERROR: coroutine cannot be shared between threads safely let a = NotSync; yield; drop(a); }); - assert_send(|| { + assert_send(#[coroutine] || { //~^ ERROR: coroutine cannot be sent between threads safely let a = NotSend; yield; diff --git a/tests/ui/coroutine/not-send-sync.stderr b/tests/ui/coroutine/not-send-sync.stderr index 9228340c710dd..0f9cbdec1300e 100644 --- a/tests/ui/coroutine/not-send-sync.stderr +++ b/tests/ui/coroutine/not-send-sync.stderr @@ -1,7 +1,7 @@ error: coroutine cannot be shared between threads safely --> $DIR/not-send-sync.rs:14:5 | -LL | / assert_sync(|| { +LL | / assert_sync(#[coroutine] || { LL | | LL | | let a = NotSync; LL | | yield; @@ -9,7 +9,7 @@ LL | | drop(a); LL | | }); | |______^ coroutine is not `Sync` | - = help: within `{coroutine@$DIR/not-send-sync.rs:14:17: 14:19}`, the trait `Sync` is not implemented for `NotSync`, which is required by `{coroutine@$DIR/not-send-sync.rs:14:17: 14:19}: Sync` + = help: within `{coroutine@$DIR/not-send-sync.rs:14:30: 14:32}`, the trait `Sync` is not implemented for `NotSync`, which is required by `{coroutine@$DIR/not-send-sync.rs:14:30: 14:32}: Sync` note: coroutine is not `Sync` as this value is used across a yield --> $DIR/not-send-sync.rs:17:9 | @@ -26,7 +26,7 @@ LL | fn assert_sync(_: T) {} error: coroutine cannot be sent between threads safely --> $DIR/not-send-sync.rs:21:5 | -LL | / assert_send(|| { +LL | / assert_send(#[coroutine] || { LL | | LL | | let a = NotSend; LL | | yield; @@ -34,7 +34,7 @@ LL | | drop(a); LL | | }); | |______^ coroutine is not `Send` | - = help: within `{coroutine@$DIR/not-send-sync.rs:21:17: 21:19}`, the trait `Send` is not implemented for `NotSend`, which is required by `{coroutine@$DIR/not-send-sync.rs:21:17: 21:19}: Send` + = help: within `{coroutine@$DIR/not-send-sync.rs:21:30: 21:32}`, the trait `Send` is not implemented for `NotSend`, which is required by `{coroutine@$DIR/not-send-sync.rs:21:30: 21:32}: Send` note: coroutine is not `Send` as this value is used across a yield --> $DIR/not-send-sync.rs:24:9 | diff --git a/tests/ui/coroutine/overlap-locals.rs b/tests/ui/coroutine/overlap-locals.rs index eea8595ed06fc..9cfa6e2a76dd2 100644 --- a/tests/ui/coroutine/overlap-locals.rs +++ b/tests/ui/coroutine/overlap-locals.rs @@ -1,9 +1,10 @@ //@ run-pass -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn main() { - let a = || { + let a = #[coroutine] + || { { let w: i32 = 4; yield; diff --git a/tests/ui/coroutine/panic-drops-resume.rs b/tests/ui/coroutine/panic-drops-resume.rs index 6d026e6edc8ac..b23666b7885fb 100644 --- a/tests/ui/coroutine/panic-drops-resume.rs +++ b/tests/ui/coroutine/panic-drops-resume.rs @@ -3,7 +3,7 @@ //@ run-pass //@ needs-unwind -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::panic::{catch_unwind, AssertUnwindSafe}; @@ -21,7 +21,7 @@ impl Drop for Dropper { } fn main() { - let mut gen = |_arg| { + let mut gen = #[coroutine] |_arg| { if true { panic!(); } diff --git a/tests/ui/coroutine/panic-drops.rs b/tests/ui/coroutine/panic-drops.rs index c99abdc72461c..8c2cf560f2acc 100644 --- a/tests/ui/coroutine/panic-drops.rs +++ b/tests/ui/coroutine/panic-drops.rs @@ -1,8 +1,7 @@ //@ run-pass //@ needs-unwind - -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::panic; @@ -25,7 +24,8 @@ fn bool_true() -> bool { fn main() { let b = B; - let mut foo = || { + let mut foo = #[coroutine] + || { if bool_true() { panic!(); } @@ -34,13 +34,12 @@ fn main() { }; assert_eq!(A.load(Ordering::SeqCst), 0); - let res = panic::catch_unwind(panic::AssertUnwindSafe(|| { - Pin::new(&mut foo).resume(()) - })); + let res = panic::catch_unwind(panic::AssertUnwindSafe(|| Pin::new(&mut foo).resume(()))); assert!(res.is_err()); assert_eq!(A.load(Ordering::SeqCst), 1); - let mut foo = || { + let mut foo = #[coroutine] + || { if bool_true() { panic!(); } @@ -49,9 +48,7 @@ fn main() { }; assert_eq!(A.load(Ordering::SeqCst), 1); - let res = panic::catch_unwind(panic::AssertUnwindSafe(|| { - Pin::new(&mut foo).resume(()) - })); + let res = panic::catch_unwind(panic::AssertUnwindSafe(|| Pin::new(&mut foo).resume(()))); assert!(res.is_err()); assert_eq!(A.load(Ordering::SeqCst), 1); } diff --git a/tests/ui/coroutine/panic-safe.rs b/tests/ui/coroutine/panic-safe.rs index 89dd09bf5203b..6b9b4cb33c322 100644 --- a/tests/ui/coroutine/panic-safe.rs +++ b/tests/ui/coroutine/panic-safe.rs @@ -2,14 +2,14 @@ //@ needs-unwind -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; use std::panic; fn main() { - let mut foo = || { + let mut foo = #[coroutine] || { if true { panic!(); } diff --git a/tests/ui/coroutine/parent-expression.rs b/tests/ui/coroutine/parent-expression.rs index 4d40192c07a27..0f4d99c893648 100644 --- a/tests/ui/coroutine/parent-expression.rs +++ b/tests/ui/coroutine/parent-expression.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, negative_impls, rustc_attrs)] +#![feature(coroutines, negative_impls, rustc_attrs, stmt_expr_attributes)] macro_rules! type_combinations { ( @@ -14,7 +14,7 @@ macro_rules! type_combinations { // Struct update syntax. This fails because the Client used in the update is considered // dropped *after* the yield. { - let g = move || match drop($name::Client { ..$name::Client::default() }) { + let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) { //~^ `significant_drop::Client` which is not `Send` //~| `insignificant_dtor::Client` which is not `Send` //~| `derived_drop::Client` which is not `Send` @@ -29,7 +29,7 @@ macro_rules! type_combinations { // Simple owned value. This works because the Client is considered moved into `drop`, // even though the temporary expression doesn't end until after the yield. { - let g = move || match drop($name::Client::default()) { + let g = #[coroutine] move || match drop($name::Client::default()) { _ => yield, }; assert_send(g); diff --git a/tests/ui/coroutine/parent-expression.stderr b/tests/ui/coroutine/parent-expression.stderr index 5b3737069e6c1..2d817f1bfd9cb 100644 --- a/tests/ui/coroutine/parent-expression.stderr +++ b/tests/ui/coroutine/parent-expression.stderr @@ -13,12 +13,12 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/parent-expression.rs:17:21: 17:28}`, the trait `Send` is not implemented for `derived_drop::Client`, which is required by `{coroutine@$DIR/parent-expression.rs:17:21: 17:28}: Send` + = help: within `{coroutine@$DIR/parent-expression.rs:17:34: 17:41}`, the trait `Send` is not implemented for `derived_drop::Client`, which is required by `{coroutine@$DIR/parent-expression.rs:17:34: 17:41}: Send` note: coroutine is not `Send` as this value is used across a yield --> $DIR/parent-expression.rs:21:22 | -LL | let g = move || match drop($name::Client { ..$name::Client::default() }) { - | ------------------------ has type `derived_drop::Client` which is not `Send` +LL | let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) { + | ------------------------ has type `derived_drop::Client` which is not `Send` ... LL | _ => yield, | ^^^^^ yield occurs here, with `$name::Client::default()` maybe used later @@ -53,12 +53,12 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/parent-expression.rs:17:21: 17:28}`, the trait `Send` is not implemented for `significant_drop::Client`, which is required by `{coroutine@$DIR/parent-expression.rs:17:21: 17:28}: Send` + = help: within `{coroutine@$DIR/parent-expression.rs:17:34: 17:41}`, the trait `Send` is not implemented for `significant_drop::Client`, which is required by `{coroutine@$DIR/parent-expression.rs:17:34: 17:41}: Send` note: coroutine is not `Send` as this value is used across a yield --> $DIR/parent-expression.rs:21:22 | -LL | let g = move || match drop($name::Client { ..$name::Client::default() }) { - | ------------------------ has type `significant_drop::Client` which is not `Send` +LL | let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) { + | ------------------------ has type `significant_drop::Client` which is not `Send` ... LL | _ => yield, | ^^^^^ yield occurs here, with `$name::Client::default()` maybe used later @@ -93,12 +93,12 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/parent-expression.rs:17:21: 17:28}`, the trait `Send` is not implemented for `insignificant_dtor::Client`, which is required by `{coroutine@$DIR/parent-expression.rs:17:21: 17:28}: Send` + = help: within `{coroutine@$DIR/parent-expression.rs:17:34: 17:41}`, the trait `Send` is not implemented for `insignificant_dtor::Client`, which is required by `{coroutine@$DIR/parent-expression.rs:17:34: 17:41}: Send` note: coroutine is not `Send` as this value is used across a yield --> $DIR/parent-expression.rs:21:22 | -LL | let g = move || match drop($name::Client { ..$name::Client::default() }) { - | ------------------------ has type `insignificant_dtor::Client` which is not `Send` +LL | let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) { + | ------------------------ has type `insignificant_dtor::Client` which is not `Send` ... LL | _ => yield, | ^^^^^ yield occurs here, with `$name::Client::default()` maybe used later diff --git a/tests/ui/coroutine/partial-drop.rs b/tests/ui/coroutine/partial-drop.rs index ba13544712f13..9efb551c9c181 100644 --- a/tests/ui/coroutine/partial-drop.rs +++ b/tests/ui/coroutine/partial-drop.rs @@ -1,5 +1,5 @@ //@ check-pass -#![feature(negative_impls, coroutines)] +#![feature(negative_impls, coroutines, stmt_expr_attributes)] struct Foo; impl !Send for Foo {} @@ -10,25 +10,34 @@ struct Bar { } fn main() { - assert_send(|| { - let guard = Bar { foo: Foo, x: 42 }; - drop(guard.foo); - yield; - }); + assert_send( + #[coroutine] + || { + let guard = Bar { foo: Foo, x: 42 }; + drop(guard.foo); + yield; + }, + ); - assert_send(|| { - let mut guard = Bar { foo: Foo, x: 42 }; - drop(guard); - guard = Bar { foo: Foo, x: 23 }; - yield; - }); + assert_send( + #[coroutine] + || { + let mut guard = Bar { foo: Foo, x: 42 }; + drop(guard); + guard = Bar { foo: Foo, x: 23 }; + yield; + }, + ); - assert_send(|| { - let guard = Bar { foo: Foo, x: 42 }; - let Bar { foo, x } = guard; - drop(foo); - yield; - }); + assert_send( + #[coroutine] + || { + let guard = Bar { foo: Foo, x: 42 }; + let Bar { foo, x } = guard; + drop(foo); + yield; + }, + ); } fn assert_send(_: T) {} diff --git a/tests/ui/coroutine/partial-initialization-across-yield.rs b/tests/ui/coroutine/partial-initialization-across-yield.rs index 75ad5a2280403..ab6f9c5b1e981 100644 --- a/tests/ui/coroutine/partial-initialization-across-yield.rs +++ b/tests/ui/coroutine/partial-initialization-across-yield.rs @@ -1,13 +1,13 @@ // Test that we don't allow yielding from a coroutine while a local is partially // initialized. -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] struct S { x: i32, y: i32 } struct T(i32, i32); fn test_tuple() { - let _ = || { + let _ = #[coroutine] || { let mut t: (i32, i32); t.0 = 42; //~ ERROR E0381 yield; @@ -17,7 +17,7 @@ fn test_tuple() { } fn test_tuple_struct() { - let _ = || { + let _ = #[coroutine] || { let mut t: T; t.0 = 42; //~ ERROR E0381 yield; @@ -27,7 +27,7 @@ fn test_tuple_struct() { } fn test_struct() { - let _ = || { + let _ = #[coroutine] || { let mut t: S; t.x = 42; //~ ERROR E0381 yield; diff --git a/tests/ui/coroutine/pattern-borrow.rs b/tests/ui/coroutine/pattern-borrow.rs index 76084433d4705..46547504abc9d 100644 --- a/tests/ui/coroutine/pattern-borrow.rs +++ b/tests/ui/coroutine/pattern-borrow.rs @@ -5,7 +5,7 @@ enum Test { A(i32), B, } fn main() { } fn fun(test: Test) { - move || { + #[coroutine] move || { if let Test::A(ref _a) = test { //~ ERROR borrow may still be in use when coroutine yields yield (); _a.use_ref(); diff --git a/tests/ui/coroutine/pin-box-coroutine.rs b/tests/ui/coroutine/pin-box-coroutine.rs index 1ee6393d1d83a..d030f3ef214d1 100644 --- a/tests/ui/coroutine/pin-box-coroutine.rs +++ b/tests/ui/coroutine/pin-box-coroutine.rs @@ -1,6 +1,6 @@ //@ run-pass -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; @@ -8,6 +8,6 @@ fn assert_coroutine(_: G) { } fn main() { - assert_coroutine(static || yield); - assert_coroutine(Box::pin(static || yield)); + assert_coroutine(#[coroutine] static || yield); + assert_coroutine(Box::pin(#[coroutine] static || yield)); } diff --git a/tests/ui/coroutine/polymorphize-args.rs b/tests/ui/coroutine/polymorphize-args.rs index 21aa3c7aafd8c..5123bf412b553 100644 --- a/tests/ui/coroutine/polymorphize-args.rs +++ b/tests/ui/coroutine/polymorphize-args.rs @@ -1,14 +1,15 @@ //@ compile-flags: -Zpolymorphize=on //@ build-pass -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; use std::thread; fn main() { - let mut foo = || yield; + let mut foo = #[coroutine] + || yield; thread::spawn(move || match Pin::new(&mut foo).resume(()) { s => panic!("bad state: {:?}", s), }) diff --git a/tests/ui/coroutine/print/coroutine-print-verbose-1.rs b/tests/ui/coroutine/print/coroutine-print-verbose-1.rs index 73106328618ea..dc0165c9194da 100644 --- a/tests/ui/coroutine/print/coroutine-print-verbose-1.rs +++ b/tests/ui/coroutine/print/coroutine-print-verbose-1.rs @@ -2,7 +2,7 @@ // Same as: tests/ui/coroutine/issue-68112.stderr -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::{ cell::RefCell, @@ -30,7 +30,7 @@ fn make_non_send_coroutine() -> impl Coroutine>> { } fn test1() { - let send_gen = || { + let send_gen = #[coroutine] || { let _non_send_gen = make_non_send_coroutine(); yield; }; @@ -39,7 +39,7 @@ fn test1() { } pub fn make_gen2(t: T) -> impl Coroutine { - || { + #[coroutine] || { yield; t } @@ -49,7 +49,7 @@ fn make_non_send_coroutine2() -> impl Coroutine>> { } fn test2() { - let send_gen = || { + let send_gen = #[coroutine] || { let _non_send_gen = make_non_send_coroutine2(); yield; }; diff --git a/tests/ui/coroutine/print/coroutine-print-verbose-1.stderr b/tests/ui/coroutine/print/coroutine-print-verbose-1.stderr index 37db83d57f756..934ab08cf178d 100644 --- a/tests/ui/coroutine/print/coroutine-print-verbose-1.stderr +++ b/tests/ui/coroutine/print/coroutine-print-verbose-1.stderr @@ -29,10 +29,10 @@ LL | require_send(send_gen); = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead = note: required for `Arc>` to implement `Send` note: required because it's used within this coroutine - --> $DIR/coroutine-print-verbose-1.rs:42:5 + --> $DIR/coroutine-print-verbose-1.rs:42:18 | -LL | || { - | ^^ +LL | #[coroutine] || { + | ^^ note: required because it appears within the type `Opaque(DefId(0:35 ~ coroutine_print_verbose_1[75fb]::make_gen2::{opaque#0}), [Arc>])` --> $DIR/coroutine-print-verbose-1.rs:41:30 | @@ -44,10 +44,10 @@ note: required because it appears within the type `Opaque(DefId(0:36 ~ coroutine LL | fn make_non_send_coroutine2() -> impl Coroutine>> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: required because it's used within this coroutine - --> $DIR/coroutine-print-verbose-1.rs:52:20 + --> $DIR/coroutine-print-verbose-1.rs:52:33 | -LL | let send_gen = || { - | ^^ +LL | let send_gen = #[coroutine] || { + | ^^ note: required by a bound in `require_send` --> $DIR/coroutine-print-verbose-1.rs:26:25 | diff --git a/tests/ui/coroutine/print/coroutine-print-verbose-2.rs b/tests/ui/coroutine/print/coroutine-print-verbose-2.rs index f9ea68a8cd942..ef7199cafdde0 100644 --- a/tests/ui/coroutine/print/coroutine-print-verbose-2.rs +++ b/tests/ui/coroutine/print/coroutine-print-verbose-2.rs @@ -1,7 +1,7 @@ //@ compile-flags: -Zverbose-internals // Same as test/ui/coroutine/not-send-sync.rs -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![feature(negative_impls)] struct NotSend; @@ -14,14 +14,14 @@ fn main() { fn assert_sync(_: T) {} fn assert_send(_: T) {} - assert_sync(|| { + assert_sync(#[coroutine] || { //~^ ERROR: coroutine cannot be shared between threads safely let a = NotSync; yield; drop(a); }); - assert_send(|| { + assert_send(#[coroutine] || { //~^ ERROR: coroutine cannot be sent between threads safely let a = NotSend; yield; diff --git a/tests/ui/coroutine/print/coroutine-print-verbose-2.stderr b/tests/ui/coroutine/print/coroutine-print-verbose-2.stderr index 26c9c27743c01..0de53d9e1d7d5 100644 --- a/tests/ui/coroutine/print/coroutine-print-verbose-2.stderr +++ b/tests/ui/coroutine/print/coroutine-print-verbose-2.stderr @@ -1,7 +1,7 @@ error: coroutine cannot be shared between threads safely --> $DIR/coroutine-print-verbose-2.rs:17:5 | -LL | / assert_sync(|| { +LL | / assert_sync(#[coroutine] || { LL | | LL | | let a = NotSync; LL | | yield; @@ -26,7 +26,7 @@ LL | fn assert_sync(_: T) {} error: coroutine cannot be sent between threads safely --> $DIR/coroutine-print-verbose-2.rs:24:5 | -LL | / assert_send(|| { +LL | / assert_send(#[coroutine] || { LL | | LL | | let a = NotSend; LL | | yield; diff --git a/tests/ui/coroutine/print/coroutine-print-verbose-3.rs b/tests/ui/coroutine/print/coroutine-print-verbose-3.rs index be6dbad9e1c2b..5dd15fc1b9516 100644 --- a/tests/ui/coroutine/print/coroutine-print-verbose-3.rs +++ b/tests/ui/coroutine/print/coroutine-print-verbose-3.rs @@ -1,12 +1,13 @@ //@ compile-flags: -Zverbose-internals -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] fn main() { let x = "Type mismatch test"; - let coroutine :() = || { - //~^ ERROR mismatched types + let coroutine: () = #[coroutine] + || { + //~^ ERROR mismatched types yield 1i32; - return x + return x; }; } diff --git a/tests/ui/coroutine/print/coroutine-print-verbose-3.stderr b/tests/ui/coroutine/print/coroutine-print-verbose-3.stderr index e2973cde6d3cc..dce45aeae56a9 100644 --- a/tests/ui/coroutine/print/coroutine-print-verbose-3.stderr +++ b/tests/ui/coroutine/print/coroutine-print-verbose-3.stderr @@ -1,13 +1,12 @@ error[E0308]: mismatched types - --> $DIR/coroutine-print-verbose-3.rs:7:25 + --> $DIR/coroutine-print-verbose-3.rs:8:5 | -LL | let coroutine :() = || { - | ____________________--___^ - | | | - | | expected due to this +LL | let coroutine: () = #[coroutine] + | -- expected due to this +LL | / || { LL | | LL | | yield 1i32; -LL | | return x +LL | | return x; LL | | }; | |_____^ expected `()`, found coroutine | diff --git a/tests/ui/coroutine/reborrow-mut-upvar.rs b/tests/ui/coroutine/reborrow-mut-upvar.rs index e1f6211baebda..716781e365c5a 100644 --- a/tests/ui/coroutine/reborrow-mut-upvar.rs +++ b/tests/ui/coroutine/reborrow-mut-upvar.rs @@ -3,7 +3,7 @@ #![feature(coroutines)] fn _run(bar: &mut i32) { - || { //~ WARN unused coroutine that must be used + #[coroutine] || { //~ WARN unused coroutine that must be used { let _baz = &*bar; yield; diff --git a/tests/ui/coroutine/reborrow-mut-upvar.stderr b/tests/ui/coroutine/reborrow-mut-upvar.stderr index 5b614ac4be8b2..a05e84c5f3ef2 100644 --- a/tests/ui/coroutine/reborrow-mut-upvar.stderr +++ b/tests/ui/coroutine/reborrow-mut-upvar.stderr @@ -1,7 +1,8 @@ warning: unused coroutine that must be used - --> $DIR/reborrow-mut-upvar.rs:6:5 + --> $DIR/reborrow-mut-upvar.rs:6:18 | -LL | / || { +LL | #[coroutine] || { + | __________________^ LL | | { LL | | let _baz = &*bar; LL | | yield; diff --git a/tests/ui/coroutine/ref-escapes-but-not-over-yield.rs b/tests/ui/coroutine/ref-escapes-but-not-over-yield.rs index a9c13188ff386..0f9c56786da06 100644 --- a/tests/ui/coroutine/ref-escapes-but-not-over-yield.rs +++ b/tests/ui/coroutine/ref-escapes-but-not-over-yield.rs @@ -1,16 +1,17 @@ -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn foo(x: &i32) { // In this case, a reference to `b` escapes the coroutine, but not // because of a yield. We see that there is no yield in the scope of // `b` and give the more generic error message. let mut a = &3; - let mut b = move || { - yield(); + let mut b = #[coroutine] + move || { + yield (); let b = 5; a = &b; //~^ ERROR borrowed data escapes outside of coroutine }; } -fn main() { } +fn main() {} diff --git a/tests/ui/coroutine/ref-escapes-but-not-over-yield.stderr b/tests/ui/coroutine/ref-escapes-but-not-over-yield.stderr index 8811faf2fade5..6fa7082c0b8b7 100644 --- a/tests/ui/coroutine/ref-escapes-but-not-over-yield.stderr +++ b/tests/ui/coroutine/ref-escapes-but-not-over-yield.stderr @@ -1,5 +1,5 @@ error[E0521]: borrowed data escapes outside of coroutine - --> $DIR/ref-escapes-but-not-over-yield.rs:11:9 + --> $DIR/ref-escapes-but-not-over-yield.rs:12:9 | LL | let mut a = &3; | ----- `a` declared here, outside of the coroutine body diff --git a/tests/ui/coroutine/ref-upvar-not-send.rs b/tests/ui/coroutine/ref-upvar-not-send.rs index 487fdeea2dae9..89bb5e5495f45 100644 --- a/tests/ui/coroutine/ref-upvar-not-send.rs +++ b/tests/ui/coroutine/ref-upvar-not-send.rs @@ -1,7 +1,7 @@ // For `Send` coroutines, suggest a `T: Sync` requirement for `&T` upvars, // and suggest a `T: Send` requirement for `&mut T` upvars. -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn assert_send(_: T) {} //~^ NOTE required by a bound in `assert_send` @@ -12,7 +12,7 @@ fn assert_send(_: T) {} fn main() { let x: &*mut () = &std::ptr::null_mut(); let y: &mut *mut () = &mut std::ptr::null_mut(); - assert_send(move || { + assert_send(#[coroutine] move || { //~^ ERROR coroutine cannot be sent between threads safely //~| NOTE coroutine is not `Send` yield; @@ -20,7 +20,7 @@ fn main() { }); //~^^ NOTE captured value is not `Send` because `&` references cannot be sent unless their referent is `Sync` //~| NOTE has type `&*mut ()` which is not `Send`, because `*mut ()` is not `Sync` - assert_send(move || { + assert_send(#[coroutine] move || { //~^ ERROR coroutine cannot be sent between threads safely //~| NOTE coroutine is not `Send` yield; diff --git a/tests/ui/coroutine/ref-upvar-not-send.stderr b/tests/ui/coroutine/ref-upvar-not-send.stderr index 0f91bcf40533f..4c7deab3f4c4d 100644 --- a/tests/ui/coroutine/ref-upvar-not-send.stderr +++ b/tests/ui/coroutine/ref-upvar-not-send.stderr @@ -1,8 +1,8 @@ error: coroutine cannot be sent between threads safely - --> $DIR/ref-upvar-not-send.rs:15:17 + --> $DIR/ref-upvar-not-send.rs:15:30 | -LL | assert_send(move || { - | _________________^ +LL | assert_send(#[coroutine] move || { + | ______________________________^ LL | | LL | | LL | | yield; @@ -10,7 +10,7 @@ LL | | let _x = x; LL | | }); | |_____^ coroutine is not `Send` | - = help: the trait `Sync` is not implemented for `*mut ()`, which is required by `{coroutine@$DIR/ref-upvar-not-send.rs:15:17: 15:24}: Send` + = help: the trait `Sync` is not implemented for `*mut ()`, which is required by `{coroutine@$DIR/ref-upvar-not-send.rs:15:30: 15:37}: Send` note: captured value is not `Send` because `&` references cannot be sent unless their referent is `Sync` --> $DIR/ref-upvar-not-send.rs:19:18 | @@ -23,10 +23,10 @@ LL | fn assert_send(_: T) {} | ^^^^ required by this bound in `assert_send` error: coroutine cannot be sent between threads safely - --> $DIR/ref-upvar-not-send.rs:23:17 + --> $DIR/ref-upvar-not-send.rs:23:30 | -LL | assert_send(move || { - | _________________^ +LL | assert_send(#[coroutine] move || { + | ______________________________^ LL | | LL | | LL | | yield; @@ -34,7 +34,7 @@ LL | | let _y = y; LL | | }); | |_____^ coroutine is not `Send` | - = help: within `{coroutine@$DIR/ref-upvar-not-send.rs:23:17: 23:24}`, the trait `Send` is not implemented for `*mut ()`, which is required by `{coroutine@$DIR/ref-upvar-not-send.rs:23:17: 23:24}: Send` + = help: within `{coroutine@$DIR/ref-upvar-not-send.rs:23:30: 23:37}`, the trait `Send` is not implemented for `*mut ()`, which is required by `{coroutine@$DIR/ref-upvar-not-send.rs:23:30: 23:37}: Send` note: captured value is not `Send` because `&mut` references cannot be sent unless their referent is `Send` --> $DIR/ref-upvar-not-send.rs:27:18 | diff --git a/tests/ui/coroutine/reinit-in-match-guard.rs b/tests/ui/coroutine/reinit-in-match-guard.rs index 4a58420477314..0a97d9fbcb2f7 100644 --- a/tests/ui/coroutine/reinit-in-match-guard.rs +++ b/tests/ui/coroutine/reinit-in-match-guard.rs @@ -1,11 +1,11 @@ //@ build-pass -#![feature(coroutines)] - +#![feature(coroutines, stmt_expr_attributes)] #![allow(unused_assignments, dead_code)] fn main() { - let _ = || { + let _ = #[coroutine] + || { let mut x = vec![22_usize]; std::mem::drop(x); match y() { diff --git a/tests/ui/coroutine/resume-after-return.rs b/tests/ui/coroutine/resume-after-return.rs index 81f86de641f25..7028e1e81e55c 100644 --- a/tests/ui/coroutine/resume-after-return.rs +++ b/tests/ui/coroutine/resume-after-return.rs @@ -1,17 +1,17 @@ //@ run-pass //@ needs-unwind +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] -#![feature(coroutines, coroutine_trait)] - -use std::ops::{CoroutineState, Coroutine}; -use std::pin::Pin; +use std::ops::{Coroutine, CoroutineState}; use std::panic; +use std::pin::Pin; fn main() { - let mut foo = || { + let mut foo = #[coroutine] + || { if true { - return + return; } yield; }; diff --git a/tests/ui/coroutine/resume-arg-late-bound.rs b/tests/ui/coroutine/resume-arg-late-bound.rs index 3c2ab41047e3d..e84184da631b5 100644 --- a/tests/ui/coroutine/resume-arg-late-bound.rs +++ b/tests/ui/coroutine/resume-arg-late-bound.rs @@ -1,14 +1,14 @@ //! Tests that we cannot produce a coroutine that accepts a resume argument //! with any lifetime and then stores it across a `yield`. -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; fn test(a: impl for<'a> Coroutine<&'a mut bool>) {} fn main() { - let gen = |arg: &mut bool| { + let gen = #[coroutine] |arg: &mut bool| { yield (); *arg = true; }; diff --git a/tests/ui/coroutine/resume-arg-late-bound.stderr b/tests/ui/coroutine/resume-arg-late-bound.stderr index 4a4ee08c529ec..646abaf4f7bde 100644 --- a/tests/ui/coroutine/resume-arg-late-bound.stderr +++ b/tests/ui/coroutine/resume-arg-late-bound.stderr @@ -4,7 +4,7 @@ error: implementation of `Coroutine` is not general enough LL | test(gen); | ^^^^^^^^^ implementation of `Coroutine` is not general enough | - = note: `{coroutine@$DIR/resume-arg-late-bound.rs:11:15: 11:31}` must implement `Coroutine<&'1 mut bool>`, for any lifetime `'1`... + = note: `{coroutine@$DIR/resume-arg-late-bound.rs:11:28: 11:44}` must implement `Coroutine<&'1 mut bool>`, for any lifetime `'1`... = note: ...but it actually implements `Coroutine<&'2 mut bool>`, for some specific lifetime `'2` error: aborting due to 1 previous error diff --git a/tests/ui/coroutine/resume-arg-size.rs b/tests/ui/coroutine/resume-arg-size.rs index 81e96975c98f6..59740a28f428a 100644 --- a/tests/ui/coroutine/resume-arg-size.rs +++ b/tests/ui/coroutine/resume-arg-size.rs @@ -1,4 +1,4 @@ -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![allow(dropping_copy_types)] //@ run-pass @@ -7,7 +7,8 @@ use std::mem::size_of_val; fn main() { // Coroutine taking a `Copy`able resume arg. - let gen_copy = |mut x: usize| { + let gen_copy = #[coroutine] + |mut x: usize| { loop { drop(x); x = yield; @@ -15,7 +16,8 @@ fn main() { }; // Coroutine taking a non-`Copy` resume arg. - let gen_move = |mut x: Box| { + let gen_move = #[coroutine] + |mut x: Box| { loop { drop(x); x = yield; diff --git a/tests/ui/coroutine/resume-live-across-yield.rs b/tests/ui/coroutine/resume-live-across-yield.rs index 45851411daaac..b67619ee70fb2 100644 --- a/tests/ui/coroutine/resume-live-across-yield.rs +++ b/tests/ui/coroutine/resume-live-across-yield.rs @@ -1,6 +1,6 @@ //@ run-pass -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; @@ -18,7 +18,8 @@ impl Drop for Dropper { } fn main() { - let mut g = |mut _d| { + let mut g = #[coroutine] + |mut _d| { _d = yield; _d }; diff --git a/tests/ui/coroutine/retain-resume-ref.rs b/tests/ui/coroutine/retain-resume-ref.rs index c9f995ab0cf31..6e688c33979ac 100644 --- a/tests/ui/coroutine/retain-resume-ref.rs +++ b/tests/ui/coroutine/retain-resume-ref.rs @@ -1,6 +1,6 @@ //! This test ensures that a mutable reference cannot be passed as a resume argument twice. -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::marker::Unpin; use std::ops::{ @@ -12,7 +12,8 @@ use std::pin::Pin; fn main() { let mut thing = String::from("hello"); - let mut gen = |r| { + let mut gen = #[coroutine] + |r| { if false { yield r; } diff --git a/tests/ui/coroutine/retain-resume-ref.stderr b/tests/ui/coroutine/retain-resume-ref.stderr index eb8b78df6c998..e23023c6e23f3 100644 --- a/tests/ui/coroutine/retain-resume-ref.stderr +++ b/tests/ui/coroutine/retain-resume-ref.stderr @@ -1,5 +1,5 @@ error[E0499]: cannot borrow `thing` as mutable more than once at a time - --> $DIR/retain-resume-ref.rs:23:25 + --> $DIR/retain-resume-ref.rs:24:25 | LL | gen.as_mut().resume(&mut thing); | ---------- first mutable borrow occurs here diff --git a/tests/ui/coroutine/size-moved-locals.rs b/tests/ui/coroutine/size-moved-locals.rs index eb5210087a0e6..0f800de84544d 100644 --- a/tests/ui/coroutine/size-moved-locals.rs +++ b/tests/ui/coroutine/size-moved-locals.rs @@ -24,6 +24,7 @@ impl Drop for Foo { } fn move_before_yield() -> impl Coroutine { + #[coroutine] static || { let first = Foo([0; FOO_SIZE]); let _second = first; @@ -35,6 +36,7 @@ fn move_before_yield() -> impl Coroutine { fn noop() {} fn move_before_yield_with_noop() -> impl Coroutine { + #[coroutine] static || { let first = Foo([0; FOO_SIZE]); noop(); @@ -47,6 +49,7 @@ fn move_before_yield_with_noop() -> impl Coroutine { // Today we don't have NRVO (we allocate space for both `first` and `second`,) // but we can overlap `first` with `_third`. fn overlap_move_points() -> impl Coroutine { + #[coroutine] static || { let first = Foo([0; FOO_SIZE]); yield; @@ -58,6 +61,7 @@ fn overlap_move_points() -> impl Coroutine { } fn overlap_x_and_y() -> impl Coroutine { + #[coroutine] static || { let x = Foo([0; FOO_SIZE]); yield; diff --git a/tests/ui/coroutine/sized-yield.rs b/tests/ui/coroutine/sized-yield.rs index 1368c88b5227d..a4c91fafe6ca5 100644 --- a/tests/ui/coroutine/sized-yield.rs +++ b/tests/ui/coroutine/sized-yield.rs @@ -1,11 +1,12 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; use std::pin::Pin; fn main() { let s = String::from("foo"); - let mut gen = move || { + let mut gen = #[coroutine] + move || { //~^ ERROR the size for values of type yield s[..]; }; diff --git a/tests/ui/coroutine/sized-yield.stderr b/tests/ui/coroutine/sized-yield.stderr index 4e8dc13201de3..5d5dd6803c899 100644 --- a/tests/ui/coroutine/sized-yield.stderr +++ b/tests/ui/coroutine/sized-yield.stderr @@ -1,8 +1,7 @@ error[E0277]: the size for values of type `str` cannot be known at compilation time - --> $DIR/sized-yield.rs:8:19 + --> $DIR/sized-yield.rs:9:5 | -LL | let mut gen = move || { - | ___________________^ +LL | / move || { LL | | LL | | yield s[..]; LL | | }; @@ -12,7 +11,7 @@ LL | | }; = note: the yield type of a coroutine must have a statically known size error[E0277]: the size for values of type `str` cannot be known at compilation time - --> $DIR/sized-yield.rs:12:24 + --> $DIR/sized-yield.rs:13:24 | LL | Pin::new(&mut gen).resume(()); | ^^^^^^ doesn't have a size known at compile-time diff --git a/tests/ui/coroutine/smoke-resume-args.rs b/tests/ui/coroutine/smoke-resume-args.rs index 7d20cd2293d6b..209c481400189 100644 --- a/tests/ui/coroutine/smoke-resume-args.rs +++ b/tests/ui/coroutine/smoke-resume-args.rs @@ -3,7 +3,7 @@ //@ revisions: default nomiropt //@[nomiropt]compile-flags: -Z mir-opt-level=0 -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::fmt::Debug; use std::ops::{ @@ -50,7 +50,7 @@ fn expect_drops(expected_drops: usize, f: impl FnOnce() -> T) -> T { fn main() { drain( - &mut |mut b| { + &mut #[coroutine] |mut b| { while b != 0 { b = yield (b + 1); } @@ -59,21 +59,24 @@ fn main() { vec![(1, Yielded(2)), (-45, Yielded(-44)), (500, Yielded(501)), (0, Complete(-1))], ); - expect_drops(2, || drain(&mut |a| yield a, vec![(DropMe, Yielded(DropMe))])); + expect_drops(2, || drain(&mut #[coroutine] |a| yield a, vec![(DropMe, Yielded(DropMe))])); expect_drops(6, || { drain( - &mut |a| yield yield a, + &mut #[coroutine] |a| yield yield a, vec![(DropMe, Yielded(DropMe)), (DropMe, Yielded(DropMe)), (DropMe, Complete(DropMe))], ) }); #[allow(unreachable_code)] - expect_drops(2, || drain(&mut |a| yield return a, vec![(DropMe, Complete(DropMe))])); + expect_drops(2, || drain( + &mut #[coroutine] |a| yield return a, + vec![(DropMe, Complete(DropMe))] + )); expect_drops(2, || { drain( - &mut |a: DropMe| { + &mut #[coroutine] |a: DropMe| { if false { yield () } else { a } }, vec![(DropMe, Complete(DropMe))], @@ -83,7 +86,7 @@ fn main() { expect_drops(4, || { drain( #[allow(unused_assignments, unused_variables)] - &mut |mut a: DropMe| { + &mut #[coroutine] |mut a: DropMe| { a = yield; a = yield; a = yield; diff --git a/tests/ui/coroutine/smoke.rs b/tests/ui/coroutine/smoke.rs index 17d98a52a1c49..bfb183fde9368 100644 --- a/tests/ui/coroutine/smoke.rs +++ b/tests/ui/coroutine/smoke.rs @@ -6,7 +6,7 @@ //@ needs-threads //@ compile-flags: --test -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{CoroutineState, Coroutine}; use std::pin::Pin; @@ -14,7 +14,7 @@ use std::thread; #[test] fn simple() { - let mut foo = || { + let mut foo = #[coroutine] || { if false { yield; } @@ -29,7 +29,7 @@ fn simple() { #[test] fn return_capture() { let a = String::from("foo"); - let mut foo = || { + let mut foo = #[coroutine] || { if false { yield; } @@ -44,7 +44,7 @@ fn return_capture() { #[test] fn simple_yield() { - let mut foo = || { + let mut foo = #[coroutine] || { yield; }; @@ -61,7 +61,7 @@ fn simple_yield() { #[test] fn yield_capture() { let b = String::from("foo"); - let mut foo = || { + let mut foo = #[coroutine] || { yield b; }; @@ -77,7 +77,7 @@ fn yield_capture() { #[test] fn simple_yield_value() { - let mut foo = || { + let mut foo = #[coroutine] || { yield String::from("bar"); return String::from("foo") }; @@ -95,7 +95,7 @@ fn simple_yield_value() { #[test] fn return_after_yield() { let a = String::from("foo"); - let mut foo = || { + let mut foo = #[coroutine] || { yield; return a }; @@ -112,34 +112,34 @@ fn return_after_yield() { #[test] fn send_and_sync() { - assert_send_sync(|| { + assert_send_sync(#[coroutine] || { yield }); - assert_send_sync(|| { + assert_send_sync(#[coroutine] || { yield String::from("foo"); }); - assert_send_sync(|| { + assert_send_sync(#[coroutine] || { yield; return String::from("foo"); }); let a = 3; - assert_send_sync(|| { + assert_send_sync(#[coroutine] || { yield a; return }); let a = 3; - assert_send_sync(move || { + assert_send_sync(#[coroutine] move || { yield a; return }); let a = String::from("a"); - assert_send_sync(|| { + assert_send_sync(#[coroutine] || { yield ; drop(a); return }); let a = String::from("a"); - assert_send_sync(move || { + assert_send_sync(#[coroutine] move || { yield ; drop(a); return @@ -150,7 +150,7 @@ fn send_and_sync() { #[test] fn send_over_threads() { - let mut foo = || { yield }; + let mut foo = #[coroutine] || { yield }; thread::spawn(move || { match Pin::new(&mut foo).resume(()) { CoroutineState::Yielded(()) => {} @@ -163,7 +163,7 @@ fn send_over_threads() { }).join().unwrap(); let a = String::from("a"); - let mut foo = || { yield a }; + let mut foo = #[coroutine] || { yield a }; thread::spawn(move || { match Pin::new(&mut foo).resume(()) { CoroutineState::Yielded(ref s) if *s == "a" => {} diff --git a/tests/ui/coroutine/static-coroutine.rs b/tests/ui/coroutine/static-coroutine.rs index 9beaef3e4de31..eba6336d342fe 100644 --- a/tests/ui/coroutine/static-coroutine.rs +++ b/tests/ui/coroutine/static-coroutine.rs @@ -1,12 +1,13 @@ //@ run-pass -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] -use std::pin::Pin; use std::ops::{Coroutine, CoroutineState}; +use std::pin::Pin; fn main() { - let mut coroutine = static || { + let mut coroutine = #[coroutine] + static || { let a = true; let b = &a; yield; diff --git a/tests/ui/coroutine/static-mut-reference-across-yield.rs b/tests/ui/coroutine/static-mut-reference-across-yield.rs index 0d8042ed8526b..40d5fdf2d5736 100644 --- a/tests/ui/coroutine/static-mut-reference-across-yield.rs +++ b/tests/ui/coroutine/static-mut-reference-across-yield.rs @@ -1,6 +1,6 @@ //@ build-pass -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] static mut A: [i32; 5] = [1, 2, 3, 4, 5]; @@ -8,13 +8,15 @@ fn is_send_sync(_: T) {} fn main() { unsafe { - let gen_index = static || { + let gen_index = #[coroutine] + static || { let u = A[{ yield; 1 }]; }; - let gen_match = static || match A { + let gen_match = #[coroutine] + static || match A { i if { yield; true diff --git a/tests/ui/coroutine/static-not-unpin.current.stderr b/tests/ui/coroutine/static-not-unpin.current.stderr index 518abdd62c790..7d6260ac569e8 100644 --- a/tests/ui/coroutine/static-not-unpin.current.stderr +++ b/tests/ui/coroutine/static-not-unpin.current.stderr @@ -1,8 +1,8 @@ -error[E0277]: `{static coroutine@$DIR/static-not-unpin.rs:15:25: 15:34}` cannot be unpinned +error[E0277]: `{static coroutine@$DIR/static-not-unpin.rs:15:5: 15:14}` cannot be unpinned --> $DIR/static-not-unpin.rs:18:18 | LL | assert_unpin(coroutine); - | ------------ ^^^^^^^^^ the trait `Unpin` is not implemented for `{static coroutine@$DIR/static-not-unpin.rs:15:25: 15:34}` + | ------------ ^^^^^^^^^ the trait `Unpin` is not implemented for `{static coroutine@$DIR/static-not-unpin.rs:15:5: 15:14}` | | | required by a bound introduced by this call | @@ -11,7 +11,7 @@ LL | assert_unpin(coroutine); note: required by a bound in `assert_unpin` --> $DIR/static-not-unpin.rs:11:20 | -LL | fn assert_unpin(_: T) { +LL | fn assert_unpin(_: T) {} | ^^^^^ required by this bound in `assert_unpin` error: aborting due to 1 previous error diff --git a/tests/ui/coroutine/static-not-unpin.next.stderr b/tests/ui/coroutine/static-not-unpin.next.stderr index 518abdd62c790..7d6260ac569e8 100644 --- a/tests/ui/coroutine/static-not-unpin.next.stderr +++ b/tests/ui/coroutine/static-not-unpin.next.stderr @@ -1,8 +1,8 @@ -error[E0277]: `{static coroutine@$DIR/static-not-unpin.rs:15:25: 15:34}` cannot be unpinned +error[E0277]: `{static coroutine@$DIR/static-not-unpin.rs:15:5: 15:14}` cannot be unpinned --> $DIR/static-not-unpin.rs:18:18 | LL | assert_unpin(coroutine); - | ------------ ^^^^^^^^^ the trait `Unpin` is not implemented for `{static coroutine@$DIR/static-not-unpin.rs:15:25: 15:34}` + | ------------ ^^^^^^^^^ the trait `Unpin` is not implemented for `{static coroutine@$DIR/static-not-unpin.rs:15:5: 15:14}` | | | required by a bound introduced by this call | @@ -11,7 +11,7 @@ LL | assert_unpin(coroutine); note: required by a bound in `assert_unpin` --> $DIR/static-not-unpin.rs:11:20 | -LL | fn assert_unpin(_: T) { +LL | fn assert_unpin(_: T) {} | ^^^^^ required by this bound in `assert_unpin` error: aborting due to 1 previous error diff --git a/tests/ui/coroutine/static-not-unpin.rs b/tests/ui/coroutine/static-not-unpin.rs index 3704cca772977..2bc25e3796d45 100644 --- a/tests/ui/coroutine/static-not-unpin.rs +++ b/tests/ui/coroutine/static-not-unpin.rs @@ -2,17 +2,17 @@ //@ ignore-compare-mode-next-solver (explicit revisions) //@[next] compile-flags: -Znext-solver -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] //@ normalize-stderr-test "std::pin::Unpin" -> "std::marker::Unpin" use std::marker::Unpin; -fn assert_unpin(_: T) { -} +fn assert_unpin(_: T) {} fn main() { - let mut coroutine = static || { + let mut coroutine = #[coroutine] + static || { yield; }; assert_unpin(coroutine); //~ ERROR E0277 diff --git a/tests/ui/coroutine/static-reference-across-yield.rs b/tests/ui/coroutine/static-reference-across-yield.rs index cf19ccb54d535..e7ff658ebf643 100644 --- a/tests/ui/coroutine/static-reference-across-yield.rs +++ b/tests/ui/coroutine/static-reference-across-yield.rs @@ -4,10 +4,10 @@ static A: [i32; 5] = [1, 2, 3, 4, 5]; fn main() { - static || { + #[coroutine] static || { let u = A[{yield; 1}]; }; - static || { + #[coroutine] static || { match A { i if { yield; true } => (), _ => (), diff --git a/tests/ui/coroutine/too-live-local-in-immovable-gen.rs b/tests/ui/coroutine/too-live-local-in-immovable-gen.rs index 382e7ff38143d..1c689ef7cefc4 100644 --- a/tests/ui/coroutine/too-live-local-in-immovable-gen.rs +++ b/tests/ui/coroutine/too-live-local-in-immovable-gen.rs @@ -5,7 +5,7 @@ fn main() { unsafe { - static move || { //~ WARN unused coroutine that must be used + #[coroutine] static move || { //~ WARN unused coroutine that must be used // Tests that the coroutine transformation finds out that `a` is not live // during the yield expression. Type checking will also compute liveness // and it should also find out that `a` is not live. diff --git a/tests/ui/coroutine/too-live-local-in-immovable-gen.stderr b/tests/ui/coroutine/too-live-local-in-immovable-gen.stderr index 4a67dbe71e19b..48df5c5beacd7 100644 --- a/tests/ui/coroutine/too-live-local-in-immovable-gen.stderr +++ b/tests/ui/coroutine/too-live-local-in-immovable-gen.stderr @@ -1,7 +1,8 @@ warning: unused coroutine that must be used - --> $DIR/too-live-local-in-immovable-gen.rs:8:9 + --> $DIR/too-live-local-in-immovable-gen.rs:8:22 | -LL | / static move || { +LL | #[coroutine] static move || { + | ______________________^ LL | | // Tests that the coroutine transformation finds out that `a` is not live LL | | // during the yield expression. Type checking will also compute liveness LL | | // and it should also find out that `a` is not live. diff --git a/tests/ui/coroutine/too-many-parameters.rs b/tests/ui/coroutine/too-many-parameters.rs index 377d80c7b22e2..3baaf0623479d 100644 --- a/tests/ui/coroutine/too-many-parameters.rs +++ b/tests/ui/coroutine/too-many-parameters.rs @@ -1,6 +1,7 @@ #![feature(coroutines)] fn main() { + #[coroutine] |(), ()| { //~^ error: too many parameters for a coroutine yield; diff --git a/tests/ui/coroutine/too-many-parameters.stderr b/tests/ui/coroutine/too-many-parameters.stderr index c0917c7225ba4..45dad8e349e25 100644 --- a/tests/ui/coroutine/too-many-parameters.stderr +++ b/tests/ui/coroutine/too-many-parameters.stderr @@ -1,5 +1,5 @@ error[E0628]: too many parameters for a coroutine (expected 0 or 1 parameters) - --> $DIR/too-many-parameters.rs:4:5 + --> $DIR/too-many-parameters.rs:5:5 | LL | |(), ()| { | ^^^^^^^^ diff --git a/tests/ui/coroutine/type-mismatch-error.rs b/tests/ui/coroutine/type-mismatch-error.rs index 0d04c21484cbe..ee4e27c20da18 100644 --- a/tests/ui/coroutine/type-mismatch-error.rs +++ b/tests/ui/coroutine/type-mismatch-error.rs @@ -1,7 +1,7 @@ //! Test that we get the expected type mismatch error instead of "closure is expected to take 0 //! arguments" (which got introduced after implementing resume arguments). -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::Coroutine; @@ -9,6 +9,7 @@ fn f(_: G, _: G::Return) {} fn main() { f( + #[coroutine] |a: u8| { if false { yield (); diff --git a/tests/ui/coroutine/type-mismatch-error.stderr b/tests/ui/coroutine/type-mismatch-error.stderr index 737d9afdd79a9..f10c30e259072 100644 --- a/tests/ui/coroutine/type-mismatch-error.stderr +++ b/tests/ui/coroutine/type-mismatch-error.stderr @@ -1,5 +1,5 @@ error[E0308]: `if` and `else` have incompatible types - --> $DIR/type-mismatch-error.rs:16:17 + --> $DIR/type-mismatch-error.rs:17:17 | LL | / if false { LL | | yield (); diff --git a/tests/ui/coroutine/type-mismatch-signature-deduction.rs b/tests/ui/coroutine/type-mismatch-signature-deduction.rs index d4ca622e80f53..5b04b3efaaa46 100644 --- a/tests/ui/coroutine/type-mismatch-signature-deduction.rs +++ b/tests/ui/coroutine/type-mismatch-signature-deduction.rs @@ -4,6 +4,7 @@ use std::ops::Coroutine; fn foo() -> impl Coroutine { //~^ ERROR type mismatch + #[coroutine] || { if false { return Ok(6); diff --git a/tests/ui/coroutine/type-mismatch-signature-deduction.stderr b/tests/ui/coroutine/type-mismatch-signature-deduction.stderr index f26e30a8e7435..0892719603752 100644 --- a/tests/ui/coroutine/type-mismatch-signature-deduction.stderr +++ b/tests/ui/coroutine/type-mismatch-signature-deduction.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/type-mismatch-signature-deduction.rs:14:9 + --> $DIR/type-mismatch-signature-deduction.rs:15:9 | LL | 5 | ^ expected `Result<{integer}, _>`, found integer @@ -7,7 +7,7 @@ LL | 5 = note: expected enum `Result<{integer}, _>` found type `{integer}` note: return type inferred to be `Result<{integer}, _>` here - --> $DIR/type-mismatch-signature-deduction.rs:9:20 + --> $DIR/type-mismatch-signature-deduction.rs:10:20 | LL | return Ok(6); | ^^^^^ @@ -18,7 +18,7 @@ LL | Ok(5) LL | Err(5) | ++++ + -error[E0271]: type mismatch resolving `<{coroutine@$DIR/type-mismatch-signature-deduction.rs:7:5: 7:7} as Coroutine>::Return == i32` +error[E0271]: type mismatch resolving `<{coroutine@$DIR/type-mismatch-signature-deduction.rs:8:5: 8:7} as Coroutine>::Return == i32` --> $DIR/type-mismatch-signature-deduction.rs:5:13 | LL | fn foo() -> impl Coroutine { diff --git a/tests/ui/coroutine/uninhabited-field.rs b/tests/ui/coroutine/uninhabited-field.rs index 79776d653b1f7..d6ada07ce0cbc 100644 --- a/tests/ui/coroutine/uninhabited-field.rs +++ b/tests/ui/coroutine/uninhabited-field.rs @@ -3,7 +3,7 @@ #![allow(unused)] #![feature(assert_matches)] #![feature(coroutine_trait)] -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![feature(never_type)] use std::assert_matches::assert_matches; use std::ops::Coroutine; @@ -13,7 +13,7 @@ use std::pin::Pin; fn conjure() -> T { loop {} } fn run(x: bool, y: bool) { - let mut c = || { + let mut c = #[coroutine] || { if x { let a : T; if y { diff --git a/tests/ui/coroutine/unsized-capture-across-yield.rs b/tests/ui/coroutine/unsized-capture-across-yield.rs index ef9cbc1d677da..c86b1823aafff 100644 --- a/tests/ui/coroutine/unsized-capture-across-yield.rs +++ b/tests/ui/coroutine/unsized-capture-across-yield.rs @@ -7,6 +7,7 @@ use std::ops::Coroutine; fn capture() -> impl Coroutine { let b: [u8] = *(Box::new([]) as Box<[u8]>); + #[coroutine] move || { println!("{:?}", &b); //~^ ERROR the size for values of type `[u8]` cannot be known at compilation time diff --git a/tests/ui/coroutine/unsized-capture-across-yield.stderr b/tests/ui/coroutine/unsized-capture-across-yield.stderr index 436f0901a9776..03551f1bbff51 100644 --- a/tests/ui/coroutine/unsized-capture-across-yield.stderr +++ b/tests/ui/coroutine/unsized-capture-across-yield.stderr @@ -8,7 +8,7 @@ LL | #![feature(unsized_locals)] = note: `#[warn(incomplete_features)]` on by default error[E0277]: the size for values of type `[u8]` cannot be known at compilation time - --> $DIR/unsized-capture-across-yield.rs:11:27 + --> $DIR/unsized-capture-across-yield.rs:12:27 | LL | move || { | -- this closure captures all values by move diff --git a/tests/ui/coroutine/unsized-local-across-yield.rs b/tests/ui/coroutine/unsized-local-across-yield.rs index 7a8ed60e46ae4..cb8ced13a111a 100644 --- a/tests/ui/coroutine/unsized-local-across-yield.rs +++ b/tests/ui/coroutine/unsized-local-across-yield.rs @@ -6,6 +6,7 @@ use std::ops::Coroutine; fn across() -> impl Coroutine { + #[coroutine] move || { let b: [u8] = *(Box::new([]) as Box<[u8]>); //~^ ERROR the size for values of type `[u8]` cannot be known at compilation time diff --git a/tests/ui/coroutine/unsized-local-across-yield.stderr b/tests/ui/coroutine/unsized-local-across-yield.stderr index c4c3be77ac2bd..4fe0f135a9d62 100644 --- a/tests/ui/coroutine/unsized-local-across-yield.stderr +++ b/tests/ui/coroutine/unsized-local-across-yield.stderr @@ -8,7 +8,7 @@ LL | #![feature(unsized_locals)] = note: `#[warn(incomplete_features)]` on by default error[E0277]: the size for values of type `[u8]` cannot be known at compilation time - --> $DIR/unsized-local-across-yield.rs:10:13 + --> $DIR/unsized-local-across-yield.rs:11:13 | LL | let b: [u8] = *(Box::new([]) as Box<[u8]>); | ^ doesn't have a size known at compile-time diff --git a/tests/ui/coroutine/yield-in-args-rev.rs b/tests/ui/coroutine/yield-in-args-rev.rs index b074e2bc93987..29d79df25fbab 100644 --- a/tests/ui/coroutine/yield-in-args-rev.rs +++ b/tests/ui/coroutine/yield-in-args-rev.rs @@ -10,7 +10,7 @@ fn foo(_a: (), _b: &bool) {} fn bar() { - || { //~ WARN unused coroutine that must be used + #[coroutine] || { //~ WARN unused coroutine that must be used let b = true; foo(yield, &b); }; diff --git a/tests/ui/coroutine/yield-in-args-rev.stderr b/tests/ui/coroutine/yield-in-args-rev.stderr index dbf46739e8bf1..10829d661854d 100644 --- a/tests/ui/coroutine/yield-in-args-rev.stderr +++ b/tests/ui/coroutine/yield-in-args-rev.stderr @@ -1,7 +1,8 @@ warning: unused coroutine that must be used - --> $DIR/yield-in-args-rev.rs:13:5 + --> $DIR/yield-in-args-rev.rs:13:18 | -LL | / || { +LL | #[coroutine] || { + | __________________^ LL | | let b = true; LL | | foo(yield, &b); LL | | }; diff --git a/tests/ui/coroutine/yield-in-args.rs b/tests/ui/coroutine/yield-in-args.rs index b2827148d771a..bc9909b310c3f 100644 --- a/tests/ui/coroutine/yield-in-args.rs +++ b/tests/ui/coroutine/yield-in-args.rs @@ -3,6 +3,7 @@ fn foo(_b: &bool, _a: ()) {} fn main() { + #[coroutine] || { let b = true; foo(&b, yield); //~ ERROR diff --git a/tests/ui/coroutine/yield-in-args.stderr b/tests/ui/coroutine/yield-in-args.stderr index 7233f47884b7b..1d2c54f9bdbfa 100644 --- a/tests/ui/coroutine/yield-in-args.stderr +++ b/tests/ui/coroutine/yield-in-args.stderr @@ -1,5 +1,5 @@ error[E0626]: borrow may still be in use when coroutine yields - --> $DIR/yield-in-args.rs:8:13 + --> $DIR/yield-in-args.rs:9:13 | LL | foo(&b, yield); | ^^ ----- possible yield occurs here diff --git a/tests/ui/coroutine/yield-in-const.rs b/tests/ui/coroutine/yield-in-const.rs index 22651f32cf85a..dc1b30155b9ff 100644 --- a/tests/ui/coroutine/yield-in-const.rs +++ b/tests/ui/coroutine/yield-in-const.rs @@ -2,5 +2,6 @@ const A: u8 = { yield 3u8; 3u8}; //~^ ERROR yield expression outside +//~| ERROR `yield` can only be used in fn main() {} diff --git a/tests/ui/coroutine/yield-in-const.stderr b/tests/ui/coroutine/yield-in-const.stderr index d5748b0533753..f02729412ccd5 100644 --- a/tests/ui/coroutine/yield-in-const.stderr +++ b/tests/ui/coroutine/yield-in-const.stderr @@ -1,9 +1,15 @@ +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/yield-in-const.rs:3:17 + | +LL | const A: u8 = { yield 3u8; 3u8}; + | ^^^^^^^^^ + error[E0627]: yield expression outside of coroutine literal --> $DIR/yield-in-const.rs:3:17 | LL | const A: u8 = { yield 3u8; 3u8}; | ^^^^^^^^^ -error: aborting due to 1 previous error +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0627`. diff --git a/tests/ui/coroutine/yield-in-function.rs b/tests/ui/coroutine/yield-in-function.rs index a99312043bdb9..427c5d0e7f5e5 100644 --- a/tests/ui/coroutine/yield-in-function.rs +++ b/tests/ui/coroutine/yield-in-function.rs @@ -2,3 +2,4 @@ fn main() { yield; } //~^ ERROR yield expression outside +//~| ERROR `yield` can only be used in diff --git a/tests/ui/coroutine/yield-in-function.stderr b/tests/ui/coroutine/yield-in-function.stderr index b9d4708bb8d86..dbebf310b04ff 100644 --- a/tests/ui/coroutine/yield-in-function.stderr +++ b/tests/ui/coroutine/yield-in-function.stderr @@ -1,9 +1,20 @@ +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/yield-in-function.rs:3:13 + | +LL | fn main() { yield; } + | ^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | #[coroutine] fn main() { yield; } + | ++++++++++++ + error[E0627]: yield expression outside of coroutine literal --> $DIR/yield-in-function.rs:3:13 | LL | fn main() { yield; } | ^^^^^ -error: aborting due to 1 previous error +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0627`. diff --git a/tests/ui/coroutine/yield-in-initializer.rs b/tests/ui/coroutine/yield-in-initializer.rs index 19218926b8a0d..3caefac013ef2 100644 --- a/tests/ui/coroutine/yield-in-initializer.rs +++ b/tests/ui/coroutine/yield-in-initializer.rs @@ -3,7 +3,7 @@ #![feature(coroutines)] fn main() { - static || { //~ WARN unused coroutine that must be used + #[coroutine] static || { //~ WARN unused coroutine that must be used loop { // Test that `opt` is not live across the yield, even when borrowed in a loop // See https://github.com/rust-lang/rust/issues/52792 diff --git a/tests/ui/coroutine/yield-in-initializer.stderr b/tests/ui/coroutine/yield-in-initializer.stderr index 614df43f2f58f..1e22b7876687f 100644 --- a/tests/ui/coroutine/yield-in-initializer.stderr +++ b/tests/ui/coroutine/yield-in-initializer.stderr @@ -1,7 +1,8 @@ warning: unused coroutine that must be used - --> $DIR/yield-in-initializer.rs:6:5 + --> $DIR/yield-in-initializer.rs:6:18 | -LL | / static || { +LL | #[coroutine] static || { + | __________________^ LL | | loop { LL | | // Test that `opt` is not live across the yield, even when borrowed in a loop LL | | // See https://github.com/rust-lang/rust/issues/52792 diff --git a/tests/ui/coroutine/yield-in-static.rs b/tests/ui/coroutine/yield-in-static.rs index 45e0380d46d9f..99d08913e64ce 100644 --- a/tests/ui/coroutine/yield-in-static.rs +++ b/tests/ui/coroutine/yield-in-static.rs @@ -2,5 +2,6 @@ static B: u8 = { yield 3u8; 3u8}; //~^ ERROR yield expression outside +//~| ERROR `yield` can only be used in fn main() {} diff --git a/tests/ui/coroutine/yield-in-static.stderr b/tests/ui/coroutine/yield-in-static.stderr index b56283cab6690..d1fd4eab0fc3c 100644 --- a/tests/ui/coroutine/yield-in-static.stderr +++ b/tests/ui/coroutine/yield-in-static.stderr @@ -1,9 +1,15 @@ +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/yield-in-static.rs:3:18 + | +LL | static B: u8 = { yield 3u8; 3u8}; + | ^^^^^^^^^ + error[E0627]: yield expression outside of coroutine literal --> $DIR/yield-in-static.rs:3:18 | LL | static B: u8 = { yield 3u8; 3u8}; | ^^^^^^^^^ -error: aborting due to 1 previous error +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0627`. diff --git a/tests/ui/coroutine/yield-outside-coroutine-issue-78653.rs b/tests/ui/coroutine/yield-outside-coroutine-issue-78653.rs index 31025c33b1a26..6833bc9901212 100644 --- a/tests/ui/coroutine/yield-outside-coroutine-issue-78653.rs +++ b/tests/ui/coroutine/yield-outside-coroutine-issue-78653.rs @@ -4,4 +4,5 @@ fn main() { yield || for i in 0 { } //~^ ERROR yield expression outside of coroutine literal //~| ERROR `{integer}` is not an iterator + //~| ERROR `yield` can only be used in } diff --git a/tests/ui/coroutine/yield-outside-coroutine-issue-78653.stderr b/tests/ui/coroutine/yield-outside-coroutine-issue-78653.stderr index 8f8bec9945847..921e8d5d47a0d 100644 --- a/tests/ui/coroutine/yield-outside-coroutine-issue-78653.stderr +++ b/tests/ui/coroutine/yield-outside-coroutine-issue-78653.stderr @@ -1,3 +1,14 @@ +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/yield-outside-coroutine-issue-78653.rs:4:5 + | +LL | yield || for i in 0 { } + | ^^^^^^^^^^^^^^^^^^^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | #[coroutine] fn main() { + | ++++++++++++ + error[E0627]: yield expression outside of coroutine literal --> $DIR/yield-outside-coroutine-issue-78653.rs:4:5 | @@ -14,7 +25,7 @@ LL | yield || for i in 0 { } = note: if you want to iterate between `start` until a value `end`, use the exclusive range syntax `start..end` or the inclusive range syntax `start..=end` = note: required for `{integer}` to implement `IntoIterator` -error: aborting due to 2 previous errors +error: aborting due to 3 previous errors Some errors have detailed explanations: E0277, E0627. For more information about an error, try `rustc --explain E0277`. diff --git a/tests/ui/coroutine/yield-subtype.rs b/tests/ui/coroutine/yield-subtype.rs index 271f8362f17ed..adee5075e8324 100644 --- a/tests/ui/coroutine/yield-subtype.rs +++ b/tests/ui/coroutine/yield-subtype.rs @@ -8,7 +8,7 @@ fn bar<'a>() { let a: &'static str = "hi"; let b: &'a str = a; - || { //~ WARN unused coroutine that must be used + #[coroutine] || { //~ WARN unused coroutine that must be used yield a; yield b; }; diff --git a/tests/ui/coroutine/yield-subtype.stderr b/tests/ui/coroutine/yield-subtype.stderr index 5e7ae9f581eb1..973415327a5d8 100644 --- a/tests/ui/coroutine/yield-subtype.stderr +++ b/tests/ui/coroutine/yield-subtype.stderr @@ -1,7 +1,8 @@ warning: unused coroutine that must be used - --> $DIR/yield-subtype.rs:11:5 + --> $DIR/yield-subtype.rs:11:18 | -LL | / || { +LL | #[coroutine] || { + | __________________^ LL | | yield a; LL | | yield b; LL | | }; diff --git a/tests/ui/coroutine/yield-while-iterating.rs b/tests/ui/coroutine/yield-while-iterating.rs index 66ac6d3922a9c..77f601e4f2c5b 100644 --- a/tests/ui/coroutine/yield-while-iterating.rs +++ b/tests/ui/coroutine/yield-while-iterating.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::ops::{CoroutineState, Coroutine}; use std::cell::Cell; @@ -9,7 +9,7 @@ fn yield_during_iter_owned_data(x: Vec) { // reference to it. This winds up becoming a rather confusing // regionck error -- in particular, we would freeze with the // reference in scope, and it doesn't live long enough. - let _b = move || { + let _b =#[coroutine] move || { for p in &x { //~ ERROR yield(); } @@ -17,7 +17,7 @@ fn yield_during_iter_owned_data(x: Vec) { } fn yield_during_iter_borrowed_slice(x: &[i32]) { - let _b = move || { + let _b = #[coroutine] move || { for p in x { yield(); } @@ -26,7 +26,7 @@ fn yield_during_iter_borrowed_slice(x: &[i32]) { fn yield_during_iter_borrowed_slice_2() { let mut x = vec![22_i32]; - let _b = || { + let _b = #[coroutine] || { for p in &x { yield(); } @@ -38,7 +38,7 @@ fn yield_during_iter_borrowed_slice_3() { // OK to take a mutable ref to `x` and yield // up pointers from it: let mut x = vec![22_i32]; - let mut b = || { + let mut b = #[coroutine] || { for p in &mut x { yield p; } @@ -50,7 +50,7 @@ fn yield_during_iter_borrowed_slice_4() { // ...but not OK to do that while reading // from `x` too let mut x = vec![22_i32]; - let mut b = || { + let mut b = #[coroutine] || { for p in &mut x { yield p; } @@ -61,7 +61,7 @@ fn yield_during_iter_borrowed_slice_4() { fn yield_during_range_iter() { // Should be OK. - let mut b = || { + let mut b = #[coroutine] || { let v = vec![1,2,3]; let len = v.len(); for i in 0..len { diff --git a/tests/ui/coroutine/yield-while-iterating.stderr b/tests/ui/coroutine/yield-while-iterating.stderr index 5330121f3728f..f81c914c4bd49 100644 --- a/tests/ui/coroutine/yield-while-iterating.stderr +++ b/tests/ui/coroutine/yield-while-iterating.stderr @@ -9,8 +9,8 @@ LL | yield(); error[E0502]: cannot borrow `x` as immutable because it is also borrowed as mutable --> $DIR/yield-while-iterating.rs:58:20 | -LL | let mut b = || { - | -- mutable borrow occurs here +LL | let mut b = #[coroutine] || { + | -- mutable borrow occurs here LL | for p in &mut x { | - first borrow occurs due to use of `x` in coroutine ... diff --git a/tests/ui/coroutine/yield-while-local-borrowed.rs b/tests/ui/coroutine/yield-while-local-borrowed.rs index 7f8d1d4543d89..3db30c36712f0 100644 --- a/tests/ui/coroutine/yield-while-local-borrowed.rs +++ b/tests/ui/coroutine/yield-while-local-borrowed.rs @@ -1,4 +1,4 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] use std::cell::Cell; use std::ops::{Coroutine, CoroutineState}; @@ -9,7 +9,7 @@ fn borrow_local_inline() { // // (This error occurs because the region shows up in the type of // `b` and gets extended by region inference.) - let mut b = move || { + let mut b = #[coroutine] move || { let a = &mut 3; //~^ ERROR borrow may still be in use when coroutine yields yield (); @@ -20,7 +20,7 @@ fn borrow_local_inline() { fn borrow_local_inline_done() { // No error here -- `a` is not in scope at the point of `yield`. - let mut b = move || { + let mut b = #[coroutine] move || { { let a = &mut 3; } @@ -34,7 +34,7 @@ fn borrow_local() { // // (This error occurs because the region shows up in the type of // `b` and gets extended by region inference.) - let mut b = move || { + let mut b = #[coroutine] move || { let a = 3; { let b = &a; diff --git a/tests/ui/coroutine/yield-while-ref-reborrowed.rs b/tests/ui/coroutine/yield-while-ref-reborrowed.rs index 07c591758586b..2600d0b4124b1 100644 --- a/tests/ui/coroutine/yield-while-ref-reborrowed.rs +++ b/tests/ui/coroutine/yield-while-ref-reborrowed.rs @@ -1,15 +1,16 @@ -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] -use std::ops::{CoroutineState, Coroutine}; use std::cell::Cell; +use std::ops::{Coroutine, CoroutineState}; use std::pin::Pin; fn reborrow_shared_ref(x: &i32) { // This is OK -- we have a borrow live over the yield, but it's of // data that outlives the coroutine. - let mut b = move || { + let mut b = #[coroutine] + move || { let a = &*x; - yield(); + yield (); println!("{}", a); }; Pin::new(&mut b).resume(()); @@ -18,9 +19,10 @@ fn reborrow_shared_ref(x: &i32) { fn reborrow_mutable_ref(x: &mut i32) { // This is OK -- we have a borrow live over the yield, but it's of // data that outlives the coroutine. - let mut b = move || { + let mut b = #[coroutine] + move || { let a = &mut *x; - yield(); + yield (); println!("{}", a); }; Pin::new(&mut b).resume(()); @@ -28,13 +30,14 @@ fn reborrow_mutable_ref(x: &mut i32) { fn reborrow_mutable_ref_2(x: &mut i32) { // ...but not OK to go on using `x`. - let mut b = || { + let mut b = #[coroutine] + || { let a = &mut *x; - yield(); + yield (); println!("{}", a); }; println!("{}", x); //~ ERROR Pin::new(&mut b).resume(()); } -fn main() { } +fn main() {} diff --git a/tests/ui/coroutine/yield-while-ref-reborrowed.stderr b/tests/ui/coroutine/yield-while-ref-reborrowed.stderr index 62ac02653112e..7c9b766457dbf 100644 --- a/tests/ui/coroutine/yield-while-ref-reborrowed.stderr +++ b/tests/ui/coroutine/yield-while-ref-reborrowed.stderr @@ -1,8 +1,8 @@ error[E0501]: cannot borrow `x` as immutable because previous closure requires unique access - --> $DIR/yield-while-ref-reborrowed.rs:36:20 + --> $DIR/yield-while-ref-reborrowed.rs:39:20 | -LL | let mut b = || { - | -- coroutine construction occurs here +LL | || { + | -- coroutine construction occurs here LL | let a = &mut *x; | -- first borrow occurs due to use of `x` in coroutine ... diff --git a/tests/ui/drop/dynamic-drop.rs b/tests/ui/drop/dynamic-drop.rs index f848a1a340b29..b695b5702d943 100644 --- a/tests/ui/drop/dynamic-drop.rs +++ b/tests/ui/drop/dynamic-drop.rs @@ -1,7 +1,7 @@ //@ run-pass //@ needs-unwind -#![feature(coroutines, coroutine_trait)] +#![feature(coroutines, coroutine_trait, stmt_expr_attributes)] #![feature(if_let_guard)] #![allow(unused_assignments)] @@ -176,7 +176,7 @@ fn vec_simple(a: &Allocator) { fn coroutine(a: &Allocator, run_count: usize) { assert!(run_count < 4); - let mut gen = || { + let mut gen = #[coroutine] || { (a.alloc(), yield a.alloc(), a.alloc(), diff --git a/tests/ui/feature-gates/feature-gate-closure_track_caller.rs b/tests/ui/feature-gates/feature-gate-closure_track_caller.rs index 93bf83ecf53c8..d90fb765a237a 100644 --- a/tests/ui/feature-gates/feature-gate-closure_track_caller.rs +++ b/tests/ui/feature-gates/feature-gate-closure_track_caller.rs @@ -4,6 +4,6 @@ fn main() { let _closure = #[track_caller] || {}; //~ `#[track_caller]` on closures - let _coroutine = #[track_caller] || { yield; }; //~ `#[track_caller]` on closures + let _coroutine = #[coroutine] #[track_caller] || { yield; }; //~ `#[track_caller]` on closures let _future = #[track_caller] async {}; //~ `#[track_caller]` on closures } diff --git a/tests/ui/feature-gates/feature-gate-closure_track_caller.stderr b/tests/ui/feature-gates/feature-gate-closure_track_caller.stderr index 17b5e6016a461..0b12b73fd1fff 100644 --- a/tests/ui/feature-gates/feature-gate-closure_track_caller.stderr +++ b/tests/ui/feature-gates/feature-gate-closure_track_caller.stderr @@ -9,10 +9,10 @@ LL | let _closure = #[track_caller] || {}; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: `#[track_caller]` on closures is currently unstable - --> $DIR/feature-gate-closure_track_caller.rs:7:22 + --> $DIR/feature-gate-closure_track_caller.rs:7:35 | -LL | let _coroutine = #[track_caller] || { yield; }; - | ^^^^^^^^^^^^^^^ +LL | let _coroutine = #[coroutine] #[track_caller] || { yield; }; + | ^^^^^^^^^^^^^^^ | = note: see issue #87417 for more information = help: add `#![feature(closure_track_caller)]` to the crate attributes to enable diff --git a/tests/ui/feature-gates/feature-gate-coroutines.e2024.stderr b/tests/ui/feature-gates/feature-gate-coroutines.e2024.stderr index 1cef163cef5c2..3bb48e4a37a4a 100644 --- a/tests/ui/feature-gates/feature-gate-coroutines.e2024.stderr +++ b/tests/ui/feature-gates/feature-gate-coroutines.e2024.stderr @@ -8,8 +8,19 @@ LL | yield true; = help: add `#![feature(coroutines)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/feature-gate-coroutines.rs:5:5 + | +LL | yield true; + | ^^^^^^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | #[coroutine] fn main() { + | ++++++++++++ + error[E0658]: yield syntax is experimental - --> $DIR/feature-gate-coroutines.rs:9:16 + --> $DIR/feature-gate-coroutines.rs:10:16 | LL | let _ = || yield true; | ^^^^^^^^^^ @@ -18,13 +29,24 @@ LL | let _ = || yield true; = help: add `#![feature(coroutines)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/feature-gate-coroutines.rs:10:16 + | +LL | let _ = || yield true; + | ^^^^^^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | let _ = #[coroutine] || yield true; + | ++++++++++++ + error[E0627]: yield expression outside of coroutine literal --> $DIR/feature-gate-coroutines.rs:5:5 | LL | yield true; | ^^^^^^^^^^ -error: aborting due to 3 previous errors +error: aborting due to 5 previous errors Some errors have detailed explanations: E0627, E0658. For more information about an error, try `rustc --explain E0627`. diff --git a/tests/ui/feature-gates/feature-gate-coroutines.none.stderr b/tests/ui/feature-gates/feature-gate-coroutines.none.stderr index 403f0549aef27..65e7737ef84d5 100644 --- a/tests/ui/feature-gates/feature-gate-coroutines.none.stderr +++ b/tests/ui/feature-gates/feature-gate-coroutines.none.stderr @@ -9,7 +9,7 @@ LL | yield true; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: yield syntax is experimental - --> $DIR/feature-gate-coroutines.rs:9:16 + --> $DIR/feature-gate-coroutines.rs:10:16 | LL | let _ = || yield true; | ^^^^^^^^^^ @@ -19,7 +19,7 @@ LL | let _ = || yield true; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: yield syntax is experimental - --> $DIR/feature-gate-coroutines.rs:16:5 + --> $DIR/feature-gate-coroutines.rs:18:5 | LL | yield; | ^^^^^ @@ -29,7 +29,7 @@ LL | yield; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: yield syntax is experimental - --> $DIR/feature-gate-coroutines.rs:17:5 + --> $DIR/feature-gate-coroutines.rs:19:5 | LL | yield 0; | ^^^^^^^ @@ -49,8 +49,19 @@ LL | yield true; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/feature-gate-coroutines.rs:5:5 + | +LL | yield true; + | ^^^^^^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | #[coroutine] fn main() { + | ++++++++++++ + error[E0658]: yield syntax is experimental - --> $DIR/feature-gate-coroutines.rs:9:16 + --> $DIR/feature-gate-coroutines.rs:10:16 | LL | let _ = || yield true; | ^^^^^^^^^^ @@ -60,13 +71,24 @@ LL | let _ = || yield true; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` +error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks + --> $DIR/feature-gate-coroutines.rs:10:16 + | +LL | let _ = || yield true; + | ^^^^^^^^^^ + | +help: use `#[coroutine]` to make this closure a coroutine + | +LL | let _ = #[coroutine] || yield true; + | ++++++++++++ + error[E0627]: yield expression outside of coroutine literal --> $DIR/feature-gate-coroutines.rs:5:5 | LL | yield true; | ^^^^^^^^^^ -error: aborting due to 7 previous errors +error: aborting due to 9 previous errors Some errors have detailed explanations: E0627, E0658. For more information about an error, try `rustc --explain E0627`. diff --git a/tests/ui/feature-gates/feature-gate-coroutines.rs b/tests/ui/feature-gates/feature-gate-coroutines.rs index b3df2351b680b..28dce8596d396 100644 --- a/tests/ui/feature-gates/feature-gate-coroutines.rs +++ b/tests/ui/feature-gates/feature-gate-coroutines.rs @@ -5,9 +5,11 @@ fn main() { yield true; //~ ERROR yield syntax is experimental //~^ ERROR yield expression outside of coroutine literal //[none]~^^ ERROR yield syntax is experimental + //~^^^ ERROR `yield` can only be used let _ = || yield true; //~ ERROR yield syntax is experimental //[none]~^ ERROR yield syntax is experimental + //~^^ ERROR `yield` can only be used } #[cfg(FALSE)] diff --git a/tests/ui/impl-trait/issues/issue-58504.rs b/tests/ui/impl-trait/issues/issue-58504.rs index 4f7a35e81b80b..856e1297e58b8 100644 --- a/tests/ui/impl-trait/issues/issue-58504.rs +++ b/tests/ui/impl-trait/issues/issue-58504.rs @@ -3,7 +3,7 @@ use std::ops::Coroutine; fn mk_gen() -> impl Coroutine { - || { loop { yield; } } + #[coroutine] || { loop { yield; } } } fn main() { diff --git a/tests/ui/impl-trait/lifetimes.rs b/tests/ui/impl-trait/lifetimes.rs index 93a4801fa40ef..df64b685eab85 100644 --- a/tests/ui/impl-trait/lifetimes.rs +++ b/tests/ui/impl-trait/lifetimes.rs @@ -115,7 +115,7 @@ impl<'unnecessary_lifetime> MyVec { } fn coroutine_doesnt_capture_unnecessary_lifetime<'s: 's>() -> impl Sized { - || yield + #[coroutine] || yield } } diff --git a/tests/ui/impl-trait/recursive-coroutine-boxed.next.stderr b/tests/ui/impl-trait/recursive-coroutine-boxed.next.stderr index c0b399746eaf9..96db2030a405c 100644 --- a/tests/ui/impl-trait/recursive-coroutine-boxed.next.stderr +++ b/tests/ui/impl-trait/recursive-coroutine-boxed.next.stderr @@ -1,5 +1,5 @@ error[E0282]: type annotations needed - --> $DIR/recursive-coroutine-boxed.rs:14:23 + --> $DIR/recursive-coroutine-boxed.rs:15:23 | LL | let mut gen = Box::pin(foo()); | ^^^^^^^^ cannot infer type of the type parameter `T` declared on the struct `Box` @@ -13,7 +13,7 @@ LL | let mut gen = Box::::pin(foo()); | +++++ error[E0308]: mismatched types - --> $DIR/recursive-coroutine-boxed.rs:13:5 + --> $DIR/recursive-coroutine-boxed.rs:14:18 | LL | fn foo() -> impl Coroutine { | --------------------------------------- @@ -21,7 +21,8 @@ LL | fn foo() -> impl Coroutine { | the expected opaque type | expected `impl Coroutine` because of return type ... -LL | / || { +LL | #[coroutine] || { + | __________________^ LL | | let mut gen = Box::pin(foo()); LL | | LL | | let mut r = gen.as_mut().resume(()); @@ -31,7 +32,7 @@ LL | | } | |_____^ types differ | = note: expected opaque type `impl Coroutine` - found coroutine `{coroutine@$DIR/recursive-coroutine-boxed.rs:13:5: 13:7}` + found coroutine `{coroutine@$DIR/recursive-coroutine-boxed.rs:14:18: 14:20}` error: aborting due to 2 previous errors diff --git a/tests/ui/impl-trait/recursive-coroutine-boxed.rs b/tests/ui/impl-trait/recursive-coroutine-boxed.rs index 02c75be0f3aa0..24a77d7311419 100644 --- a/tests/ui/impl-trait/recursive-coroutine-boxed.rs +++ b/tests/ui/impl-trait/recursive-coroutine-boxed.rs @@ -10,7 +10,8 @@ fn foo() -> impl Coroutine { // FIXME(-Znext-solver): this fails with a mismatched types as the // hidden type of the opaque ends up as {type error}. We should not // emit errors for such goals. - || { //[next]~ ERROR mismatched types + + #[coroutine] || { //[next]~ ERROR mismatched types let mut gen = Box::pin(foo()); //[next]~^ ERROR type annotations needed let mut r = gen.as_mut().resume(()); diff --git a/tests/ui/impl-trait/recursive-coroutine-indirect.current.stderr b/tests/ui/impl-trait/recursive-coroutine-indirect.current.stderr index ee87c483d0d03..9814187e179ef 100644 --- a/tests/ui/impl-trait/recursive-coroutine-indirect.current.stderr +++ b/tests/ui/impl-trait/recursive-coroutine-indirect.current.stderr @@ -1,8 +1,8 @@ error[E0733]: recursion in a coroutine requires boxing - --> $DIR/recursive-coroutine-indirect.rs:11:5 + --> $DIR/recursive-coroutine-indirect.rs:11:18 | -LL | move || { - | ^^^^^^^ +LL | #[coroutine] move || { + | ^^^^^^^ LL | let x = coroutine_hold(); | - recursive call here diff --git a/tests/ui/impl-trait/recursive-coroutine-indirect.next.stderr b/tests/ui/impl-trait/recursive-coroutine-indirect.next.stderr index ee87c483d0d03..9814187e179ef 100644 --- a/tests/ui/impl-trait/recursive-coroutine-indirect.next.stderr +++ b/tests/ui/impl-trait/recursive-coroutine-indirect.next.stderr @@ -1,8 +1,8 @@ error[E0733]: recursion in a coroutine requires boxing - --> $DIR/recursive-coroutine-indirect.rs:11:5 + --> $DIR/recursive-coroutine-indirect.rs:11:18 | -LL | move || { - | ^^^^^^^ +LL | #[coroutine] move || { + | ^^^^^^^ LL | let x = coroutine_hold(); | - recursive call here diff --git a/tests/ui/impl-trait/recursive-coroutine-indirect.rs b/tests/ui/impl-trait/recursive-coroutine-indirect.rs index bba9792fe3cfa..cec2176049b87 100644 --- a/tests/ui/impl-trait/recursive-coroutine-indirect.rs +++ b/tests/ui/impl-trait/recursive-coroutine-indirect.rs @@ -8,7 +8,7 @@ #![feature(coroutines)] #![allow(unconditional_recursion)] fn coroutine_hold() -> impl Sized { - move || { //~ ERROR recursion in a coroutine requires boxing + #[coroutine] move || { //~ ERROR recursion in a coroutine requires boxing let x = coroutine_hold(); yield; x; diff --git a/tests/ui/impl-trait/recursive-impl-trait-type-indirect.rs b/tests/ui/impl-trait/recursive-impl-trait-type-indirect.rs index 432f80a1763e5..8b9dac0e29b0b 100644 --- a/tests/ui/impl-trait/recursive-impl-trait-type-indirect.rs +++ b/tests/ui/impl-trait/recursive-impl-trait-type-indirect.rs @@ -57,6 +57,8 @@ fn coroutine_sig() -> impl Sized { fn coroutine_capture() -> impl Sized { //~^ ERROR let x = coroutine_capture(); + + #[coroutine] move || { yield; x; diff --git a/tests/ui/impl-trait/recursive-impl-trait-type-indirect.stderr b/tests/ui/impl-trait/recursive-impl-trait-type-indirect.stderr index d5b8c531fd6e0..2d2731e4368f5 100644 --- a/tests/ui/impl-trait/recursive-impl-trait-type-indirect.stderr +++ b/tests/ui/impl-trait/recursive-impl-trait-type-indirect.stderr @@ -98,10 +98,10 @@ LL | | yield; LL | | x; | | - coroutine captures itself here LL | | } - | |_____- returning here with type `{coroutine@$DIR/recursive-impl-trait-type-indirect.rs:60:5: 60:12}` + | |_____- returning here with type `{coroutine@$DIR/recursive-impl-trait-type-indirect.rs:62:5: 62:12}` error[E0720]: cannot resolve opaque type - --> $DIR/recursive-impl-trait-type-indirect.rs:66:35 + --> $DIR/recursive-impl-trait-type-indirect.rs:68:35 | LL | fn substs_change() -> impl Sized { | ^^^^^^^^^^ recursive opaque type @@ -110,7 +110,7 @@ LL | (substs_change::<&T>(),) | ------------------------ returning here with type `(impl Sized,)` error[E0720]: cannot resolve opaque type - --> $DIR/recursive-impl-trait-type-indirect.rs:76:26 + --> $DIR/recursive-impl-trait-type-indirect.rs:78:26 | LL | fn mutual_recursion() -> impl Sync { | ^^^^^^^^^ recursive opaque type @@ -122,7 +122,7 @@ LL | fn mutual_recursion_b() -> impl Sized { | ---------- returning this opaque type `impl Sized` error[E0720]: cannot resolve opaque type - --> $DIR/recursive-impl-trait-type-indirect.rs:81:28 + --> $DIR/recursive-impl-trait-type-indirect.rs:83:28 | LL | fn mutual_recursion() -> impl Sync { | --------- returning this opaque type `impl Sync` diff --git a/tests/ui/lint/must_not_suspend/tuple-mismatch.rs b/tests/ui/lint/must_not_suspend/tuple-mismatch.rs index 2f3c5d9ea294d..ec409925d7248 100644 --- a/tests/ui/lint/must_not_suspend/tuple-mismatch.rs +++ b/tests/ui/lint/must_not_suspend/tuple-mismatch.rs @@ -1,7 +1,8 @@ -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] fn main() { - let _coroutine = || { + let _coroutine = #[coroutine] + || { yield ((), ((), ())); yield ((), ()); //~^ ERROR mismatched types diff --git a/tests/ui/lint/must_not_suspend/tuple-mismatch.stderr b/tests/ui/lint/must_not_suspend/tuple-mismatch.stderr index 3adf26cfee229..102eadd7affd4 100644 --- a/tests/ui/lint/must_not_suspend/tuple-mismatch.stderr +++ b/tests/ui/lint/must_not_suspend/tuple-mismatch.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/tuple-mismatch.rs:6:20 + --> $DIR/tuple-mismatch.rs:7:20 | LL | yield ((), ()); | ^^ expected `((), ())`, found `()` diff --git a/tests/ui/lint/unused/issue-74883-unused-paren-baren-yield.rs b/tests/ui/lint/unused/issue-74883-unused-paren-baren-yield.rs index c5dd281cb4e5f..12e2bcb898cad 100644 --- a/tests/ui/lint/unused/issue-74883-unused-paren-baren-yield.rs +++ b/tests/ui/lint/unused/issue-74883-unused-paren-baren-yield.rs @@ -1,12 +1,12 @@ #![feature(coroutine_trait)] -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![deny(unused_braces, unused_parens)] use std::ops::Coroutine; use std::pin::Pin; fn main() { - let mut x = |_| { + let mut x = #[coroutine] |_| { while let Some(_) = (yield) {} while let Some(_) = {yield} {} diff --git a/tests/ui/lint/unused/unused-closure.rs b/tests/ui/lint/unused/unused-closure.rs index 9106edee65380..4633038cc9bb3 100644 --- a/tests/ui/lint/unused/unused-closure.rs +++ b/tests/ui/lint/unused/unused-closure.rs @@ -2,7 +2,7 @@ //@ edition:2018 #![feature(async_closure)] -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![deny(unused_must_use)] fn unused() { @@ -26,7 +26,7 @@ fn unused() { fn ignored() { let _ = || {}; - let _ = || yield 42; + let _ = #[coroutine] || yield 42; } fn main() { diff --git a/tests/ui/liveness/liveness-upvars.rs b/tests/ui/liveness/liveness-upvars.rs index 7898b97888230..f76efba3e6b3a 100644 --- a/tests/ui/liveness/liveness-upvars.rs +++ b/tests/ui/liveness/liveness-upvars.rs @@ -1,6 +1,6 @@ //@ edition:2018 //@ check-pass -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![warn(unused)] #![allow(unreachable_code)] @@ -131,7 +131,7 @@ pub fn async_coroutine() { pub fn coroutine() { let mut s: u32 = 0; - let _ = |_| { + let _ = #[coroutine] |_| { s = 0; yield (); s = 1; //~ WARN value assigned to `s` is never read diff --git a/tests/ui/nll/coroutine-distinct-lifetime.rs b/tests/ui/nll/coroutine-distinct-lifetime.rs index ff94a3d54b76b..471fad686c4c3 100644 --- a/tests/ui/nll/coroutine-distinct-lifetime.rs +++ b/tests/ui/nll/coroutine-distinct-lifetime.rs @@ -9,6 +9,7 @@ //@ check-pass fn foo(x: &mut u32) { + #[coroutine] move || { let s = &mut *x; yield; diff --git a/tests/ui/nll/coroutine-upvar-mutability.rs b/tests/ui/nll/coroutine-upvar-mutability.rs index 12853b16b9b75..a7d14173fb9fc 100644 --- a/tests/ui/nll/coroutine-upvar-mutability.rs +++ b/tests/ui/nll/coroutine-upvar-mutability.rs @@ -4,6 +4,8 @@ fn mutate_upvar() { let x = 0; + + #[coroutine] move || { x = 1; //~^ ERROR diff --git a/tests/ui/nll/coroutine-upvar-mutability.stderr b/tests/ui/nll/coroutine-upvar-mutability.stderr index 8922eae315188..8b9be877c8f39 100644 --- a/tests/ui/nll/coroutine-upvar-mutability.stderr +++ b/tests/ui/nll/coroutine-upvar-mutability.stderr @@ -1,9 +1,9 @@ error[E0594]: cannot assign to `x`, as it is not declared as mutable - --> $DIR/coroutine-upvar-mutability.rs:8:9 + --> $DIR/coroutine-upvar-mutability.rs:10:9 | LL | let x = 0; | - help: consider changing this to be mutable: `mut x` -LL | move || { +... LL | x = 1; | ^^^^^ cannot assign diff --git a/tests/ui/nll/extra-unused-mut.rs b/tests/ui/nll/extra-unused-mut.rs index 786ba98508fb6..b040dcc6e5db9 100644 --- a/tests/ui/nll/extra-unused-mut.rs +++ b/tests/ui/nll/extra-unused-mut.rs @@ -18,6 +18,8 @@ fn mutable_upvar() { // #50897 fn coroutine_mutable_upvar() { let mut x = 0; + + #[coroutine] move || { x = 1; yield; @@ -36,13 +38,13 @@ struct Expr { // #51904 fn parse_dot_or_call_expr_with(mut attrs: Vec) { let x = Expr { attrs: vec![] }; - Some(Some(x)).map(|expr| + Some(Some(x)).map(|expr| { expr.map(|mut expr| { attrs.push(666); expr.attrs = attrs; expr }) - ); + }); } // Found when trying to bootstrap rustc diff --git a/tests/ui/nll/issue-48623-coroutine.rs b/tests/ui/nll/issue-48623-coroutine.rs index 3a4a27855d99d..63348a2047c07 100644 --- a/tests/ui/nll/issue-48623-coroutine.rs +++ b/tests/ui/nll/issue-48623-coroutine.rs @@ -12,7 +12,7 @@ impl Drop for WithDrop { fn reborrow_from_coroutine(r: &mut ()) { let d = WithDrop; - move || { d; yield; &mut *r }; //~ WARN unused coroutine that must be used + #[coroutine] move || { d; yield; &mut *r }; //~ WARN unused coroutine that must be used } fn main() {} diff --git a/tests/ui/nll/issue-48623-coroutine.stderr b/tests/ui/nll/issue-48623-coroutine.stderr index 1b7b1735aacb1..4e4cd28ef2ae9 100644 --- a/tests/ui/nll/issue-48623-coroutine.stderr +++ b/tests/ui/nll/issue-48623-coroutine.stderr @@ -1,8 +1,8 @@ warning: unused coroutine that must be used - --> $DIR/issue-48623-coroutine.rs:15:5 + --> $DIR/issue-48623-coroutine.rs:15:18 | -LL | move || { d; yield; &mut *r }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | #[coroutine] move || { d; yield; &mut *r }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: coroutines are lazy and do nothing unless resumed = note: `#[warn(unused_must_use)]` on by default diff --git a/tests/ui/nll/issue-55850.rs b/tests/ui/nll/issue-55850.rs index fc873af94638b..bf1e2e7caef6d 100644 --- a/tests/ui/nll/issue-55850.rs +++ b/tests/ui/nll/issue-55850.rs @@ -23,7 +23,7 @@ where } fn bug<'a>() -> impl Iterator { - GenIter(move || { + GenIter(#[coroutine] move || { let mut s = String::new(); yield &s[..] //~ ERROR cannot yield value referencing local variable `s` [E0515] //~| ERROR borrow may still be in use when coroutine yields diff --git a/tests/ui/packed/packed-struct-drop-aligned.rs b/tests/ui/packed/packed-struct-drop-aligned.rs index 037b8cb78b721..ba3dcb10c61e5 100644 --- a/tests/ui/packed/packed-struct-drop-aligned.rs +++ b/tests/ui/packed/packed-struct-drop-aligned.rs @@ -1,5 +1,5 @@ //@ run-pass -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![feature(coroutine_trait)] use std::cell::Cell; use std::mem; @@ -7,13 +7,12 @@ use std::ops::Coroutine; use std::pin::Pin; struct Aligned<'a> { - drop_count: &'a Cell + drop_count: &'a Cell, } #[inline(never)] fn check_align(ptr: *const Aligned) { - assert_eq!(ptr as usize % mem::align_of::(), - 0); + assert_eq!(ptr as usize % mem::align_of::(), 0); } impl<'a> Drop for Aligned<'a> { @@ -39,7 +38,8 @@ fn main() { assert_eq!(drop_count.get(), 2); let drop_count = &Cell::new(0); - let mut g = || { + let mut g = #[coroutine] + || { let mut p = Packed(NotCopy(0), Aligned { drop_count }); let _ = &p; p.1 = Aligned { drop_count }; diff --git a/tests/ui/polymorphization/coroutine.rs b/tests/ui/polymorphization/coroutine.rs index a989947f78738..22ceadfb194d9 100644 --- a/tests/ui/polymorphization/coroutine.rs +++ b/tests/ui/polymorphization/coroutine.rs @@ -32,6 +32,7 @@ where #[rustc_polymorphize_error] pub fn unused_type() -> impl Coroutine<(), Yield = u32, Return = u32> + Unpin { + #[coroutine] || { //~^ ERROR item has unused generic parameters yield 1; @@ -41,6 +42,7 @@ pub fn unused_type() -> impl Coroutine<(), Yield = u32, Return = u32> + Unpin #[rustc_polymorphize_error] pub fn used_type_in_yield() -> impl Coroutine<(), Yield = Y, Return = u32> + Unpin { + #[coroutine] || { yield Y::default(); 2 @@ -49,6 +51,7 @@ pub fn used_type_in_yield() -> impl Coroutine<(), Yield = Y, Return #[rustc_polymorphize_error] pub fn used_type_in_return() -> impl Coroutine<(), Yield = u32, Return = R> + Unpin { + #[coroutine] || { yield 3; R::default() @@ -57,6 +60,7 @@ pub fn used_type_in_return() -> impl Coroutine<(), Yield = u32, Retu #[rustc_polymorphize_error] pub fn unused_const() -> impl Coroutine<(), Yield = u32, Return = u32> + Unpin { + #[coroutine] || { //~^ ERROR item has unused generic parameters yield 1; @@ -67,6 +71,7 @@ pub fn unused_const() -> impl Coroutine<(), Yield = u32, Return = #[rustc_polymorphize_error] pub fn used_const_in_yield() -> impl Coroutine<(), Yield = u32, Return = u32> + Unpin { + #[coroutine] || { yield Y; 2 @@ -76,6 +81,7 @@ pub fn used_const_in_yield() -> impl Coroutine<(), Yield = u32, Re #[rustc_polymorphize_error] pub fn used_const_in_return() -> impl Coroutine<(), Yield = u32, Return = u32> + Unpin { + #[coroutine] || { yield 4; R diff --git a/tests/ui/polymorphization/coroutine.stderr b/tests/ui/polymorphization/coroutine.stderr index 67b55a5988317..07e29184226d9 100644 --- a/tests/ui/polymorphization/coroutine.stderr +++ b/tests/ui/polymorphization/coroutine.stderr @@ -8,18 +8,20 @@ LL | #![feature(generic_const_exprs, coroutines, coroutine_trait, rustc_attrs)] = note: `#[warn(incomplete_features)]` on by default error: item has unused generic parameters - --> $DIR/coroutine.rs:35:5 + --> $DIR/coroutine.rs:36:5 | LL | pub fn unused_type() -> impl Coroutine<(), Yield = u32, Return = u32> + Unpin { | - generic parameter `T` is unused +LL | #[coroutine] LL | || { | ^^ error: item has unused generic parameters - --> $DIR/coroutine.rs:60:5 + --> $DIR/coroutine.rs:64:5 | LL | pub fn unused_const() -> impl Coroutine<(), Yield = u32, Return = u32> + Unpin { | ------------ generic parameter `T` is unused +LL | #[coroutine] LL | || { | ^^ diff --git a/tests/ui/print_type_sizes/coroutine.rs b/tests/ui/print_type_sizes/coroutine.rs index 61488c51f0530..1533578878944 100644 --- a/tests/ui/print_type_sizes/coroutine.rs +++ b/tests/ui/print_type_sizes/coroutine.rs @@ -7,6 +7,7 @@ use std::ops::Coroutine; fn coroutine(array: [u8; C]) -> impl Coroutine { + #[coroutine] move |()| { yield (); let _ = array; diff --git a/tests/ui/print_type_sizes/coroutine.stdout b/tests/ui/print_type_sizes/coroutine.stdout index 5d51339558caf..339bbddfc2a93 100644 --- a/tests/ui/print_type_sizes/coroutine.stdout +++ b/tests/ui/print_type_sizes/coroutine.stdout @@ -1,4 +1,4 @@ -print-type-size type: `{coroutine@$DIR/coroutine.rs:10:5: 10:14}`: 8193 bytes, alignment: 1 bytes +print-type-size type: `{coroutine@$DIR/coroutine.rs:11:5: 11:14}`: 8193 bytes, alignment: 1 bytes print-type-size discriminant: 1 bytes print-type-size variant `Unresumed`: 8192 bytes print-type-size upvar `.array`: 8192 bytes diff --git a/tests/ui/print_type_sizes/coroutine_discr_placement.rs b/tests/ui/print_type_sizes/coroutine_discr_placement.rs index 4b9f67a79997f..d97b0b28ed0fe 100644 --- a/tests/ui/print_type_sizes/coroutine_discr_placement.rs +++ b/tests/ui/print_type_sizes/coroutine_discr_placement.rs @@ -5,11 +5,12 @@ // Tests a coroutine that has its discriminant as the *final* field. // Avoid emitting panic handlers, like the rest of these tests... -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![allow(dropping_copy_types)] pub fn foo() { - let a = || { + let a = #[coroutine] + || { { let w: i32 = 4; yield; diff --git a/tests/ui/print_type_sizes/coroutine_discr_placement.stdout b/tests/ui/print_type_sizes/coroutine_discr_placement.stdout index 71a7f3c63815c..4ce1ce46f6e82 100644 --- a/tests/ui/print_type_sizes/coroutine_discr_placement.stdout +++ b/tests/ui/print_type_sizes/coroutine_discr_placement.stdout @@ -1,4 +1,4 @@ -print-type-size type: `{coroutine@$DIR/coroutine_discr_placement.rs:12:13: 12:15}`: 8 bytes, alignment: 4 bytes +print-type-size type: `{coroutine@$DIR/coroutine_discr_placement.rs:13:5: 13:7}`: 8 bytes, alignment: 4 bytes print-type-size discriminant: 1 bytes print-type-size variant `Unresumed`: 0 bytes print-type-size variant `Suspend0`: 7 bytes diff --git a/tests/ui/rfcs/rfc-2091-track-caller/tracked-closure.rs b/tests/ui/rfcs/rfc-2091-track-caller/tracked-closure.rs index d5c8a529e1e37..9fdceefbf9b92 100644 --- a/tests/ui/rfcs/rfc-2091-track-caller/tracked-closure.rs +++ b/tests/ui/rfcs/rfc-2091-track-caller/tracked-closure.rs @@ -113,7 +113,7 @@ fn dyn_coroutine( } fn test_coroutine() { - let coroutine = #[track_caller] |arg: String| { + let coroutine = #[track_caller] #[coroutine] |arg: String| { yield ("first", arg.clone(), Location::caller()); yield ("second", arg.clone(), Location::caller()); }; @@ -136,7 +136,7 @@ fn test_coroutine() { assert_eq!(mono_loc.line(), mono_line); assert_eq!(mono_loc.column(), 42); - let non_tracked_coroutine = || { yield Location::caller(); }; + let non_tracked_coroutine = #[coroutine] || { yield Location::caller(); }; let non_tracked_line = line!() - 1; // This is the line of the coroutine, not its caller let non_tracked_loc = match Box::pin(non_tracked_coroutine).as_mut().resume(()) { CoroutineState::Yielded(val) => val, @@ -144,7 +144,7 @@ fn test_coroutine() { }; assert_eq!(non_tracked_loc.file(), file!()); assert_eq!(non_tracked_loc.line(), non_tracked_line); - assert_eq!(non_tracked_loc.column(), 44); + assert_eq!(non_tracked_loc.column(), 57); } diff --git a/tests/ui/sanitizer/cfi-coroutine.rs b/tests/ui/sanitizer/cfi-coroutine.rs index 5c6a489a7e89e..ad994fcf73700 100644 --- a/tests/ui/sanitizer/cfi-coroutine.rs +++ b/tests/ui/sanitizer/cfi-coroutine.rs @@ -14,7 +14,7 @@ //@ compile-flags: --test -Z unstable-options //@ run-pass -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] #![feature(coroutine_trait)] #![feature(noop_waker)] #![feature(gen_blocks)] @@ -27,7 +27,7 @@ use std::async_iter::AsyncIterator; #[test] fn general_coroutine() { - let mut coro = |x: i32| { + let mut coro = #[coroutine] |x: i32| { yield x; "done" }; diff --git a/tests/ui/suggestions/issue-84973-blacklist.rs b/tests/ui/suggestions/issue-84973-blacklist.rs index 6a35d779c1cda..edc0637636b57 100644 --- a/tests/ui/suggestions/issue-84973-blacklist.rs +++ b/tests/ui/suggestions/issue-84973-blacklist.rs @@ -14,7 +14,7 @@ struct S; fn main() { f_copy("".to_string()); //~ ERROR: the trait bound `String: Copy` is not satisfied [E0277] f_clone(S); //~ ERROR: the trait bound `S: Clone` is not satisfied [E0277] - f_unpin(static || { yield; }); + f_unpin(#[coroutine] static || { yield; }); //~^ ERROR: cannot be unpinned [E0277] let cl = || (); diff --git a/tests/ui/suggestions/issue-84973-blacklist.stderr b/tests/ui/suggestions/issue-84973-blacklist.stderr index 3333822832856..4fd063e46926a 100644 --- a/tests/ui/suggestions/issue-84973-blacklist.stderr +++ b/tests/ui/suggestions/issue-84973-blacklist.stderr @@ -36,11 +36,11 @@ LL + #[derive(Clone)] LL | struct S; | -error[E0277]: `{static coroutine@$DIR/issue-84973-blacklist.rs:17:13: 17:22}` cannot be unpinned - --> $DIR/issue-84973-blacklist.rs:17:13 +error[E0277]: `{static coroutine@$DIR/issue-84973-blacklist.rs:17:26: 17:35}` cannot be unpinned + --> $DIR/issue-84973-blacklist.rs:17:26 | -LL | f_unpin(static || { yield; }); - | ------- ^^^^^^^^^^^^^^^^^^^^ the trait `Unpin` is not implemented for `{static coroutine@$DIR/issue-84973-blacklist.rs:17:13: 17:22}` +LL | f_unpin(#[coroutine] static || { yield; }); + | ------- ^^^^^^^^^^^^^^^^^^^^ the trait `Unpin` is not implemented for `{static coroutine@$DIR/issue-84973-blacklist.rs:17:26: 17:35}` | | | required by a bound introduced by this call | diff --git a/tests/ui/suggestions/unnamable-types.rs b/tests/ui/suggestions/unnamable-types.rs index a4e32d7c80654..dd2c3536eb92e 100644 --- a/tests/ui/suggestions/unnamable-types.rs +++ b/tests/ui/suggestions/unnamable-types.rs @@ -1,7 +1,7 @@ // Test that we do not suggest to add type annotations for unnamable types. #![crate_type="lib"] -#![feature(coroutines)] +#![feature(coroutines, stmt_expr_attributes)] const A = 5; //~^ ERROR: missing type for `const` item @@ -34,6 +34,6 @@ const F = S { t: foo }; //~| HELP: provide a type for the constant -const G = || -> i32 { yield 0; return 1; }; +const G = #[coroutine] || -> i32 { yield 0; return 1; }; //~^ ERROR: missing type for `const` item //~| NOTE: however, the inferred type diff --git a/tests/ui/suggestions/unnamable-types.stderr b/tests/ui/suggestions/unnamable-types.stderr index d003b91691c0f..6623678fd0c2d 100644 --- a/tests/ui/suggestions/unnamable-types.stderr +++ b/tests/ui/suggestions/unnamable-types.stderr @@ -52,14 +52,14 @@ LL | const F = S { t: foo }; error: missing type for `const` item --> $DIR/unnamable-types.rs:37:8 | -LL | const G = || -> i32 { yield 0; return 1; }; +LL | const G = #[coroutine] || -> i32 { yield 0; return 1; }; | ^ | -note: however, the inferred type `{coroutine@$DIR/unnamable-types.rs:37:11: 37:20}` cannot be named - --> $DIR/unnamable-types.rs:37:11 +note: however, the inferred type `{coroutine@$DIR/unnamable-types.rs:37:24: 37:33}` cannot be named + --> $DIR/unnamable-types.rs:37:24 | -LL | const G = || -> i32 { yield 0; return 1; }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | const G = #[coroutine] || -> i32 { yield 0; return 1; }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 7 previous errors diff --git a/tests/ui/traits/next-solver/coroutine.fail.stderr b/tests/ui/traits/next-solver/coroutine.fail.stderr index 14e67727d0ba7..e880d05a4dd34 100644 --- a/tests/ui/traits/next-solver/coroutine.fail.stderr +++ b/tests/ui/traits/next-solver/coroutine.fail.stderr @@ -1,16 +1,16 @@ -error[E0277]: the trait bound `{coroutine@$DIR/coroutine.rs:18:21: 18:23}: Coroutine` is not satisfied - --> $DIR/coroutine.rs:18:21 +error[E0277]: the trait bound `{coroutine@$DIR/coroutine.rs:20:9: 20:11}: Coroutine` is not satisfied + --> $DIR/coroutine.rs:20:9 | -LL | needs_coroutine(|| { - | _____---------------_^ - | | | - | | required by a bound introduced by this call +LL | needs_coroutine( + | --------------- required by a bound introduced by this call +LL | #[coroutine] +LL | / || { LL | | LL | | LL | | -LL | | yield (); -LL | | }); - | |_____^ the trait `Coroutine` is not implemented for `{coroutine@$DIR/coroutine.rs:18:21: 18:23}` +LL | | yield (); +LL | | }, + | |_________^ the trait `Coroutine` is not implemented for `{coroutine@$DIR/coroutine.rs:20:9: 20:11}` | note: required by a bound in `needs_coroutine` --> $DIR/coroutine.rs:14:28 @@ -18,19 +18,19 @@ note: required by a bound in `needs_coroutine` LL | fn needs_coroutine(_: impl Coroutine) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `needs_coroutine` -error[E0271]: type mismatch resolving `<{coroutine@$DIR/coroutine.rs:18:21: 18:23} as Coroutine>::Yield == B` - --> $DIR/coroutine.rs:18:21 +error[E0271]: type mismatch resolving `<{coroutine@$DIR/coroutine.rs:20:9: 20:11} as Coroutine>::Yield == B` + --> $DIR/coroutine.rs:20:9 | -LL | needs_coroutine(|| { - | _____---------------_^ - | | | - | | required by a bound introduced by this call +LL | needs_coroutine( + | --------------- required by a bound introduced by this call +LL | #[coroutine] +LL | / || { LL | | LL | | LL | | -LL | | yield (); -LL | | }); - | |_____^ types differ +LL | | yield (); +LL | | }, + | |_________^ types differ | note: required by a bound in `needs_coroutine` --> $DIR/coroutine.rs:14:41 @@ -38,19 +38,19 @@ note: required by a bound in `needs_coroutine` LL | fn needs_coroutine(_: impl Coroutine) {} | ^^^^^^^^^ required by this bound in `needs_coroutine` -error[E0271]: type mismatch resolving `<{coroutine@$DIR/coroutine.rs:18:21: 18:23} as Coroutine>::Return == C` - --> $DIR/coroutine.rs:18:21 +error[E0271]: type mismatch resolving `<{coroutine@$DIR/coroutine.rs:20:9: 20:11} as Coroutine>::Return == C` + --> $DIR/coroutine.rs:20:9 | -LL | needs_coroutine(|| { - | _____---------------_^ - | | | - | | required by a bound introduced by this call +LL | needs_coroutine( + | --------------- required by a bound introduced by this call +LL | #[coroutine] +LL | / || { LL | | LL | | LL | | -LL | | yield (); -LL | | }); - | |_____^ types differ +LL | | yield (); +LL | | }, + | |_________^ types differ | note: required by a bound in `needs_coroutine` --> $DIR/coroutine.rs:14:52 diff --git a/tests/ui/traits/next-solver/coroutine.rs b/tests/ui/traits/next-solver/coroutine.rs index 2b5bf01cefd7d..1882a62cf29cc 100644 --- a/tests/ui/traits/next-solver/coroutine.rs +++ b/tests/ui/traits/next-solver/coroutine.rs @@ -15,18 +15,24 @@ fn needs_coroutine(_: impl Coroutine) {} #[cfg(fail)] fn main() { - needs_coroutine(|| { - //[fail]~^ ERROR Coroutine` is not satisfied - //[fail]~| ERROR as Coroutine>::Yield == B` - //[fail]~| ERROR as Coroutine>::Return == C` - yield (); - }); + needs_coroutine( + #[coroutine] + || { + //[fail]~^ ERROR Coroutine` is not satisfied + //[fail]~| ERROR as Coroutine>::Yield == B` + //[fail]~| ERROR as Coroutine>::Return == C` + yield (); + }, + ); } #[cfg(pass)] fn main() { - needs_coroutine(|_: A| { - let _: A = yield B; - C - }) + needs_coroutine( + #[coroutine] + |_: A| { + let _: A = yield B; + C + }, + ) } diff --git a/tests/ui/type-alias-impl-trait/issue-53678-coroutine-and-const-fn.rs b/tests/ui/type-alias-impl-trait/issue-53678-coroutine-and-const-fn.rs index cd14bc1fd0985..0d9126d399334 100644 --- a/tests/ui/type-alias-impl-trait/issue-53678-coroutine-and-const-fn.rs +++ b/tests/ui/type-alias-impl-trait/issue-53678-coroutine-and-const-fn.rs @@ -9,6 +9,7 @@ mod gen { pub type CoroOnce = impl Coroutine; pub const fn const_coroutine(yielding: Y, returning: R) -> CoroOnce { + #[coroutine] move || { yield yielding; diff --git a/tests/ui/type-alias-impl-trait/issue-58662-coroutine-with-lifetime.rs b/tests/ui/type-alias-impl-trait/issue-58662-coroutine-with-lifetime.rs index 78a1d5116bedb..899e81ed562fc 100644 --- a/tests/ui/type-alias-impl-trait/issue-58662-coroutine-with-lifetime.rs +++ b/tests/ui/type-alias-impl-trait/issue-58662-coroutine-with-lifetime.rs @@ -8,6 +8,7 @@ use std::pin::Pin; type RandCoroutine<'a> = impl Coroutine + 'a; fn rand_coroutine<'a>(rng: &'a ()) -> RandCoroutine<'a> { + #[coroutine] move || { let _rng = rng; loop { @@ -19,6 +20,7 @@ fn rand_coroutine<'a>(rng: &'a ()) -> RandCoroutine<'a> { pub type RandCoroutineWithIndirection<'c> = impl Coroutine + 'c; pub fn rand_coroutine_with_indirection<'a>(rng: &'a ()) -> RandCoroutineWithIndirection<'a> { fn helper<'b>(rng: &'b ()) -> impl 'b + Coroutine { + #[coroutine] move || { let _rng = rng; loop { diff --git a/tests/ui/type-alias-impl-trait/issue-94429.rs b/tests/ui/type-alias-impl-trait/issue-94429.rs index 306e73003fa98..11beed06a20cd 100644 --- a/tests/ui/type-alias-impl-trait/issue-94429.rs +++ b/tests/ui/type-alias-impl-trait/issue-94429.rs @@ -14,6 +14,7 @@ impl Runnable for Implementor { fn run(&mut self) -> Self::Coro { //~^ ERROR: type mismatch resolving + #[coroutine] move || { yield 1; } diff --git a/tests/ui/type-alias-impl-trait/issue-94429.stderr b/tests/ui/type-alias-impl-trait/issue-94429.stderr index 5d081e6b1eff5..4c2020becbe32 100644 --- a/tests/ui/type-alias-impl-trait/issue-94429.stderr +++ b/tests/ui/type-alias-impl-trait/issue-94429.stderr @@ -1,4 +1,4 @@ -error[E0271]: type mismatch resolving `<{coroutine@$DIR/issue-94429.rs:17:9: 17:16} as Coroutine>::Yield == ()` +error[E0271]: type mismatch resolving `<{coroutine@$DIR/issue-94429.rs:18:9: 18:16} as Coroutine>::Yield == ()` --> $DIR/issue-94429.rs:15:26 | LL | fn run(&mut self) -> Self::Coro { diff --git a/tests/ui/weird-exprs.rs b/tests/ui/weird-exprs.rs index 0009ed0e34c89..08b5517aae22f 100644 --- a/tests/ui/weird-exprs.rs +++ b/tests/ui/weird-exprs.rs @@ -152,6 +152,7 @@ fn r#match() { } fn i_yield() { + #[coroutine] static || { yield yield yield yield yield yield yield yield yield; };