diff options
Diffstat (limited to 'src/test/ui/async-await')
57 files changed, 906 insertions, 101 deletions
diff --git a/src/test/ui/async-await/async-fn-nonsend.stderr b/src/test/ui/async-await/async-fn-nonsend.stderr index 40ad46b48..a7b872fe4 100644 --- a/src/test/ui/async-await/async-fn-nonsend.stderr +++ b/src/test/ui/async-await/async-fn-nonsend.stderr @@ -27,7 +27,7 @@ error: future cannot be sent between threads safely LL | assert_send(non_sync_with_method_call()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_sync_with_method_call` is not `Send` | - = help: the trait `Send` is not implemented for `dyn std::fmt::Write` + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `dyn std::fmt::Write` note: future is not `Send` as this value is used across an await --> $DIR/async-fn-nonsend.rs:46:14 | diff --git a/src/test/ui/async-await/async-fn-size-moved-locals.rs b/src/test/ui/async-await/async-fn-size-moved-locals.rs index 155662566..79b7239f3 100644 --- a/src/test/ui/async-await/async-fn-size-moved-locals.rs +++ b/src/test/ui/async-await/async-fn-size-moved-locals.rs @@ -7,7 +7,7 @@ // // See issue #59123 for a full explanation. -// ignore-emscripten (sizes don't match) +// needs-unwind Size of Futures change on panic=abort // run-pass // edition:2018 diff --git a/src/test/ui/async-await/async-fn-size-uninit-locals.rs b/src/test/ui/async-await/async-fn-size-uninit-locals.rs index 31a086ba9..546172693 100644 --- a/src/test/ui/async-await/async-fn-size-uninit-locals.rs +++ b/src/test/ui/async-await/async-fn-size-uninit-locals.rs @@ -5,6 +5,7 @@ // being reflected in the size. // ignore-emscripten (sizes don't match) +// needs-unwind Size of Futures change on panic=abort // run-pass // edition:2018 @@ -67,9 +68,7 @@ async fn joined() { let c = Big::new(); fut().await; - noop(); joiner = Joiner { a: Some(a), b: Some(b), c: Some(c) }; - noop(); } async fn joined_with_noop() { @@ -97,7 +96,7 @@ async fn join_retval() -> Joiner { fn main() { assert_eq!(2, std::mem::size_of_val(&single())); assert_eq!(3, std::mem::size_of_val(&single_with_noop())); - assert_eq!(3078, std::mem::size_of_val(&joined())); + assert_eq!(3074, std::mem::size_of_val(&joined())); assert_eq!(3078, std::mem::size_of_val(&joined_with_noop())); assert_eq!(3074, std::mem::size_of_val(&join_retval())); } diff --git a/src/test/ui/async-await/async-trait-fn.rs b/src/test/ui/async-await/async-trait-fn.rs index 0ea685986..e2062e827 100644 --- a/src/test/ui/async-await/async-trait-fn.rs +++ b/src/test/ui/async-await/async-trait-fn.rs @@ -1,11 +1,8 @@ // edition:2018 trait T { async fn foo() {} //~ ERROR functions in traits cannot be declared `async` - //~^ ERROR mismatched types async fn bar(&self) {} //~ ERROR functions in traits cannot be declared `async` - //~^ ERROR mismatched types async fn baz() { //~ ERROR functions in traits cannot be declared `async` - //~^ ERROR mismatched types // Nested item must not ICE. fn a() {} } diff --git a/src/test/ui/async-await/async-trait-fn.stderr b/src/test/ui/async-await/async-trait-fn.stderr index e5c584e31..afbe25cf7 100644 --- a/src/test/ui/async-await/async-trait-fn.stderr +++ b/src/test/ui/async-await/async-trait-fn.stderr @@ -9,10 +9,10 @@ LL | async fn foo() {} = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0706]: functions in traits cannot be declared `async` - --> $DIR/async-trait-fn.rs:5:5 + --> $DIR/async-trait-fn.rs:4:5 | LL | async fn bar(&self) {} | -----^^^^^^^^^^^^^^ @@ -22,10 +22,10 @@ LL | async fn bar(&self) {} = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error[E0706]: functions in traits cannot be declared `async` - --> $DIR/async-trait-fn.rs:7:5 + --> $DIR/async-trait-fn.rs:5:5 | LL | async fn baz() { | -----^^^^^^^^^ @@ -35,56 +35,8 @@ LL | async fn baz() { = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable - -error[E0308]: mismatched types - --> $DIR/async-trait-fn.rs:3:20 - | -LL | async fn foo() {} - | ^^ expected associated type, found opaque type - | - ::: $SRC_DIR/core/src/future/mod.rs:LL:COL - | -LL | pub const fn from_generator<T>(gen: T) -> impl Future<Output = T::Return> - | ------------------------------- the found opaque type - | - = note: expected associated type `impl Future<Output = ()>` (trait associated opaque type at <$DIR/async-trait-fn.rs:3:20>) - found opaque type `impl Future<Output = ()>` (opaque type at <$SRC_DIR/core/src/future/mod.rs:LL:COL>) - -error[E0308]: mismatched types - --> $DIR/async-trait-fn.rs:5:25 - | -LL | async fn bar(&self) {} - | ^^ expected associated type, found opaque type - | - ::: $SRC_DIR/core/src/future/mod.rs:LL:COL - | -LL | pub const fn from_generator<T>(gen: T) -> impl Future<Output = T::Return> - | ------------------------------- the found opaque type - | - = note: expected associated type `impl Future<Output = ()>` (trait associated opaque type at <$DIR/async-trait-fn.rs:5:25>) - found opaque type `impl Future<Output = ()>` (opaque type at <$SRC_DIR/core/src/future/mod.rs:LL:COL>) - -error[E0308]: mismatched types - --> $DIR/async-trait-fn.rs:7:20 - | -LL | async fn baz() { - | ____________________^ -LL | | -LL | | // Nested item must not ICE. -LL | | fn a() {} -LL | | } - | |_____^ expected associated type, found opaque type - | - ::: $SRC_DIR/core/src/future/mod.rs:LL:COL - | -LL | pub const fn from_generator<T>(gen: T) -> impl Future<Output = T::Return> - | ------------------------------- the found opaque type - | - = note: expected associated type `impl Future<Output = ()>` (trait associated opaque type at <$DIR/async-trait-fn.rs:7:20>) - found opaque type `impl Future<Output = ()>` (opaque type at <$SRC_DIR/core/src/future/mod.rs:LL:COL>) + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable -error: aborting due to 6 previous errors +error: aborting due to 3 previous errors -Some errors have detailed explanations: E0308, E0706. -For more information about an error, try `rustc --explain E0308`. +For more information about this error, try `rustc --explain E0706`. diff --git a/src/test/ui/async-await/await-keyword/2015-edition-error-various-positions.stderr b/src/test/ui/async-await/await-keyword/2015-edition-error-various-positions.stderr index 50a82c08c..d99967eb2 100644 --- a/src/test/ui/async-await/await-keyword/2015-edition-error-various-positions.stderr +++ b/src/test/ui/async-await/await-keyword/2015-edition-error-various-positions.stderr @@ -4,13 +4,13 @@ error: `await` is a keyword in the 2018 edition LL | pub mod await { | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` | + = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! + = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716> note: the lint level is defined here --> $DIR/2015-edition-error-various-positions.rs:2:9 | LL | #![deny(keyword_idents)] | ^^^^^^^^^^^^^^ - = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! - = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716> error: `await` is a keyword in the 2018 edition --> $DIR/2015-edition-error-various-positions.rs:7:20 diff --git a/src/test/ui/async-await/await-keyword/2015-edition-warning.stderr b/src/test/ui/async-await/await-keyword/2015-edition-warning.stderr index 1c4c19ea4..bf5c4d8d6 100644 --- a/src/test/ui/async-await/await-keyword/2015-edition-warning.stderr +++ b/src/test/ui/async-await/await-keyword/2015-edition-warning.stderr @@ -4,13 +4,13 @@ error: `await` is a keyword in the 2018 edition LL | pub mod await { | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` | + = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! + = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716> note: the lint level is defined here --> $DIR/2015-edition-warning.rs:4:9 | LL | #![deny(keyword_idents)] | ^^^^^^^^^^^^^^ - = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! - = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716> error: `await` is a keyword in the 2018 edition --> $DIR/2015-edition-warning.rs:10:20 diff --git a/src/test/ui/async-await/await-keyword/2018-edition-error-in-non-macro-position.stderr b/src/test/ui/async-await/await-keyword/2018-edition-error-in-non-macro-position.stderr index ccbaa1f2a..6bd8f671d 100644 --- a/src/test/ui/async-await/await-keyword/2018-edition-error-in-non-macro-position.stderr +++ b/src/test/ui/async-await/await-keyword/2018-edition-error-in-non-macro-position.stderr @@ -46,7 +46,9 @@ error: expected identifier, found keyword `await` --> $DIR/2018-edition-error-in-non-macro-position.rs:13:14 | LL | struct Foo { await: () } - | ^^^^^ expected identifier, found keyword + | --- ^^^^^ expected identifier, found keyword + | | + | while parsing this struct | help: escape `await` to use it as an identifier | diff --git a/src/test/ui/async-await/edition-deny-async-fns-2015.rs b/src/test/ui/async-await/edition-deny-async-fns-2015.rs index 22a61dcd2..6bd6d879a 100644 --- a/src/test/ui/async-await/edition-deny-async-fns-2015.rs +++ b/src/test/ui/async-await/edition-deny-async-fns-2015.rs @@ -17,7 +17,6 @@ impl Foo { trait Bar { async fn foo() {} //~ ERROR `async fn` is not permitted in Rust 2015 //~^ ERROR functions in traits cannot be declared `async` - //~| ERROR mismatched types } fn main() { diff --git a/src/test/ui/async-await/edition-deny-async-fns-2015.stderr b/src/test/ui/async-await/edition-deny-async-fns-2015.stderr index 8c2902d9b..ba918eb28 100644 --- a/src/test/ui/async-await/edition-deny-async-fns-2015.stderr +++ b/src/test/ui/async-await/edition-deny-async-fns-2015.stderr @@ -53,7 +53,7 @@ LL | async fn foo() {} = note: for more on editions, read https://doc.rust-lang.org/edition-guide error[E0670]: `async fn` is not permitted in Rust 2015 - --> $DIR/edition-deny-async-fns-2015.rs:37:9 + --> $DIR/edition-deny-async-fns-2015.rs:36:9 | LL | async fn bar() {} | ^^^^^ to use `async fn`, switch to Rust 2018 or later @@ -62,7 +62,7 @@ LL | async fn bar() {} = note: for more on editions, read https://doc.rust-lang.org/edition-guide error[E0670]: `async fn` is not permitted in Rust 2015 - --> $DIR/edition-deny-async-fns-2015.rs:27:9 + --> $DIR/edition-deny-async-fns-2015.rs:26:9 | LL | async fn foo() {} | ^^^^^ to use `async fn`, switch to Rust 2018 or later @@ -71,7 +71,7 @@ LL | async fn foo() {} = note: for more on editions, read https://doc.rust-lang.org/edition-guide error[E0670]: `async fn` is not permitted in Rust 2015 - --> $DIR/edition-deny-async-fns-2015.rs:32:13 + --> $DIR/edition-deny-async-fns-2015.rs:31:13 | LL | async fn bar() {} | ^^^^^ to use `async fn`, switch to Rust 2018 or later @@ -90,23 +90,9 @@ LL | async fn foo() {} = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable -error[E0308]: mismatched types - --> $DIR/edition-deny-async-fns-2015.rs:18:20 - | -LL | async fn foo() {} - | ^^ expected associated type, found opaque type - | - ::: $SRC_DIR/core/src/future/mod.rs:LL:COL - | -LL | pub const fn from_generator<T>(gen: T) -> impl Future<Output = T::Return> - | ------------------------------- the found opaque type - | - = note: expected associated type `impl Future<Output = ()>` (trait associated opaque type at <$DIR/edition-deny-async-fns-2015.rs:18:20>) - found opaque type `impl Future<Output = ()>` (opaque type at <$SRC_DIR/core/src/future/mod.rs:LL:COL>) - -error: aborting due to 11 previous errors +error: aborting due to 10 previous errors -Some errors have detailed explanations: E0308, E0670, E0706. -For more information about an error, try `rustc --explain E0308`. +Some errors have detailed explanations: E0670, E0706. +For more information about an error, try `rustc --explain E0670`. diff --git a/src/test/ui/async-await/feature-gate-async_fn_in_trait.rs b/src/test/ui/async-await/feature-gate-async_fn_in_trait.rs new file mode 100644 index 000000000..792f378cb --- /dev/null +++ b/src/test/ui/async-await/feature-gate-async_fn_in_trait.rs @@ -0,0 +1,25 @@ +// edition:2021 + +// RPITIT is not enough to allow use of async functions +#![allow(incomplete_features)] +#![feature(return_position_impl_trait_in_trait)] + +trait T { + async fn foo(); //~ ERROR functions in traits cannot be declared `async` +} + +// Both return_position_impl_trait_in_trait and async_fn_in_trait are required for this (see also +// feature-gate-return_position_impl_trait_in_trait.rs) +trait T2 { + async fn foo() -> impl Sized; //~ ERROR functions in traits cannot be declared `async` +} + +trait T3 { + fn foo() -> impl std::future::Future<Output = ()>; +} + +impl T3 for () { + async fn foo() {} //~ ERROR functions in traits cannot be declared `async` +} + +fn main() {} diff --git a/src/test/ui/async-await/feature-gate-async_fn_in_trait.stderr b/src/test/ui/async-await/feature-gate-async_fn_in_trait.stderr new file mode 100644 index 000000000..2a5fbd1ec --- /dev/null +++ b/src/test/ui/async-await/feature-gate-async_fn_in_trait.stderr @@ -0,0 +1,42 @@ +error[E0706]: functions in traits cannot be declared `async` + --> $DIR/feature-gate-async_fn_in_trait.rs:8:5 + | +LL | async fn foo(); + | -----^^^^^^^^^^ + | | + | `async` because of this + | + = note: `async` trait functions are not currently supported + = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait + = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable + +error[E0706]: functions in traits cannot be declared `async` + --> $DIR/feature-gate-async_fn_in_trait.rs:14:5 + | +LL | async fn foo() -> impl Sized; + | -----^^^^^^^^^^^^^^^^^^^^^^^^ + | | + | `async` because of this + | + = note: `async` trait functions are not currently supported + = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait + = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable + +error[E0706]: functions in traits cannot be declared `async` + --> $DIR/feature-gate-async_fn_in_trait.rs:22:5 + | +LL | async fn foo() {} + | -----^^^^^^^^^ + | | + | `async` because of this + | + = note: `async` trait functions are not currently supported + = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait + = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0706`. diff --git a/src/test/ui/async-await/in-trait/async-associated-types.rs b/src/test/ui/async-await/in-trait/async-associated-types.rs new file mode 100644 index 000000000..a6f928f3b --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-associated-types.rs @@ -0,0 +1,24 @@ +// check-fail +// known-bug: #102682 +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +use std::fmt::Debug; + +trait MyTrait<'a, 'b, T> where Self: 'a, T: Debug + Sized + 'b { + type MyAssoc; + + async fn foo(&'a self, key: &'b T) -> Self::MyAssoc; +} + +impl<'a, 'b, T: Debug + Sized + 'b, U: 'a> MyTrait<'a, 'b, T> for U { + type MyAssoc = (&'a U, &'b T); + + async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) { + (self, key) + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-associated-types.stderr b/src/test/ui/async-await/in-trait/async-associated-types.stderr new file mode 100644 index 000000000..0985150ee --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-associated-types.stderr @@ -0,0 +1,57 @@ +error[E0495]: cannot infer an appropriate lifetime for lifetime parameter `'a` due to conflicting requirements + --> $DIR/async-associated-types.rs:19:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) { + | ^^^^^^^^^^^^^^ + | +note: first, the lifetime cannot outlive the lifetime `'a` as defined here... + --> $DIR/async-associated-types.rs:16:6 + | +LL | impl<'a, 'b, T: Debug + Sized + 'b, U: 'a> MyTrait<'a, 'b, T> for U { + | ^^ +note: ...so that the types are compatible + --> $DIR/async-associated-types.rs:19:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) { + | ^^^^^^^^^^^^^^ + = note: expected `(&'a U, &'b T)` + found `(&U, &T)` + = note: but, the lifetime must be valid for the static lifetime... +note: ...so that the types are compatible + --> $DIR/async-associated-types.rs:19:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) { + | ^^^^^^^^^^^^^^ + = note: expected `MyTrait<'static, 'static, T>` + found `MyTrait<'_, '_, T>` + +error[E0495]: cannot infer an appropriate lifetime for lifetime parameter `'b` due to conflicting requirements + --> $DIR/async-associated-types.rs:19:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) { + | ^^^^^^^^^^^^^^ + | +note: first, the lifetime cannot outlive the lifetime `'b` as defined here... + --> $DIR/async-associated-types.rs:16:10 + | +LL | impl<'a, 'b, T: Debug + Sized + 'b, U: 'a> MyTrait<'a, 'b, T> for U { + | ^^ +note: ...so that the types are compatible + --> $DIR/async-associated-types.rs:19:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) { + | ^^^^^^^^^^^^^^ + = note: expected `(&'a U, &'b T)` + found `(&U, &T)` + = note: but, the lifetime must be valid for the static lifetime... +note: ...so that the types are compatible + --> $DIR/async-associated-types.rs:19:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) { + | ^^^^^^^^^^^^^^ + = note: expected `MyTrait<'static, 'static, T>` + found `MyTrait<'_, '_, T>` + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0495`. diff --git a/src/test/ui/async-await/in-trait/async-associated-types2.rs b/src/test/ui/async-await/in-trait/async-associated-types2.rs new file mode 100644 index 000000000..e546a0579 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-associated-types2.rs @@ -0,0 +1,30 @@ +// check-pass +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![feature(type_alias_impl_trait)] +#![allow(incomplete_features)] + +use std::future::Future; + +trait MyTrait { + type Fut<'a>: Future<Output = i32> + where + Self: 'a; + + fn foo<'a>(&'a self) -> Self::Fut<'a>; +} + +impl MyTrait for i32 { + type Fut<'a> = impl Future<Output = i32> + 'a + where + Self: 'a; + + fn foo<'a>(&'a self) -> Self::Fut<'a> { + async { + *self + } + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.rs b/src/test/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.rs new file mode 100644 index 000000000..38ba29718 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.rs @@ -0,0 +1,21 @@ +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![feature(return_position_impl_trait_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; +use std::pin::Pin; + +trait MyTrait { + fn foo(&self) -> Pin<Box<dyn Future<Output = i32> + '_>>; +} + +impl MyTrait for i32 { + async fn foo(&self) -> i32 { + //~^ ERROR method `foo` has an incompatible type for trait + *self + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.stderr b/src/test/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.stderr new file mode 100644 index 000000000..22d2928f2 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.stderr @@ -0,0 +1,17 @@ +error[E0053]: method `foo` has an incompatible type for trait + --> $DIR/async-example-desugared-boxed-in-trait.rs:15:28 + | +LL | async fn foo(&self) -> i32 { + | ^^^ expected struct `Pin`, found opaque type + | +note: type in trait + --> $DIR/async-example-desugared-boxed-in-trait.rs:11:22 + | +LL | fn foo(&self) -> Pin<Box<dyn Future<Output = i32> + '_>>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + = note: expected fn pointer `fn(&i32) -> Pin<Box<dyn Future<Output = i32>>>` + found fn pointer `fn(&i32) -> impl Future<Output = i32>` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0053`. diff --git a/src/test/ui/async-await/in-trait/async-example-desugared-boxed.rs b/src/test/ui/async-await/in-trait/async-example-desugared-boxed.rs new file mode 100644 index 000000000..61d7e2520 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example-desugared-boxed.rs @@ -0,0 +1,24 @@ +// check-pass +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![feature(return_position_impl_trait_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; +use std::pin::Pin; + +trait MyTrait { + async fn foo(&self) -> i32; +} + +impl MyTrait for i32 { + // This will break once a PR that implements #102745 is merged + fn foo(&self) -> Pin<Box<dyn Future<Output = i32> + '_>> { + Box::pin(async { + *self + }) + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-example-desugared-in-trait.rs b/src/test/ui/async-await/in-trait/async-example-desugared-in-trait.rs new file mode 100644 index 000000000..feeda719e --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example-desugared-in-trait.rs @@ -0,0 +1,21 @@ +// check-pass +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![feature(return_position_impl_trait_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; + +trait MyTrait { + fn foo(&self) -> impl Future<Output = i32> + '_; +} + +impl MyTrait for i32 { + // This will break once a PR that implements #102745 is merged + async fn foo(&self) -> i32 { + *self + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-example-desugared.rs b/src/test/ui/async-await/in-trait/async-example-desugared.rs new file mode 100644 index 000000000..1313c9edd --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example-desugared.rs @@ -0,0 +1,23 @@ +// check-pass +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![feature(return_position_impl_trait_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; + +trait MyTrait { + async fn foo(&self) -> i32; +} + +impl MyTrait for i32 { + // This will break once a PR that implements #102745 is merged + fn foo(&self) -> impl Future<Output = i32> + '_ { + async { + *self + } + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-example.rs b/src/test/ui/async-await/in-trait/async-example.rs new file mode 100644 index 000000000..abf94ef74 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example.rs @@ -0,0 +1,32 @@ +// check-pass +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +trait MyTrait { + async fn foo(&self) -> i32; + async fn bar(&self) -> i32; +} + +impl MyTrait for i32 { + async fn foo(&self) -> i32 { + *self + } + + async fn bar(&self) -> i32 { + self.foo().await + } +} + +fn main() { + let x = 5; + // Calling from non-async context + let _ = x.foo(); + let _ = x.bar(); + // Calling from async block in non-async context + async { + let _: i32 = x.foo().await; + let _: i32 = x.bar().await; + }; +} diff --git a/src/test/ui/async-await/in-trait/async-generics-and-bounds.rs b/src/test/ui/async-await/in-trait/async-generics-and-bounds.rs new file mode 100644 index 000000000..a73d55adf --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-generics-and-bounds.rs @@ -0,0 +1,21 @@ +// check-fail +// known-bug: #102682 +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +use std::fmt::Debug; +use std::hash::Hash; + +trait MyTrait<T, U> { + async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; +} + +impl<T, U> MyTrait<T, U> for (T, U) { + async fn foo(&self) -> &(T, U) { + self + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-generics-and-bounds.stderr b/src/test/ui/async-await/in-trait/async-generics-and-bounds.stderr new file mode 100644 index 000000000..5c8d64fc6 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-generics-and-bounds.stderr @@ -0,0 +1,37 @@ +error[E0311]: the parameter type `U` may not live long enough + --> $DIR/async-generics-and-bounds.rs:12:28 + | +LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; + | ^^^^^^^ + | +note: the parameter type `U` must be valid for the anonymous lifetime as defined here... + --> $DIR/async-generics-and-bounds.rs:12:18 + | +LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; + | ^ +note: ...so that the reference type `&(T, U)` does not outlive the data it points at + --> $DIR/async-generics-and-bounds.rs:12:28 + | +LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; + | ^^^^^^^ + +error[E0311]: the parameter type `T` may not live long enough + --> $DIR/async-generics-and-bounds.rs:12:28 + | +LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; + | ^^^^^^^ + | +note: the parameter type `T` must be valid for the anonymous lifetime as defined here... + --> $DIR/async-generics-and-bounds.rs:12:18 + | +LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; + | ^ +note: ...so that the reference type `&(T, U)` does not outlive the data it points at + --> $DIR/async-generics-and-bounds.rs:12:28 + | +LL | async fn foo(&self) -> &(T, U) where T: Debug + Sized, U: Hash; + | ^^^^^^^ + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0311`. diff --git a/src/test/ui/async-await/in-trait/async-generics.rs b/src/test/ui/async-await/in-trait/async-generics.rs new file mode 100644 index 000000000..67000e577 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-generics.rs @@ -0,0 +1,18 @@ +// check-fail +// known-bug: #102682 +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +trait MyTrait<T, U> { + async fn foo(&self) -> &(T, U); +} + +impl<T, U> MyTrait<T, U> for (T, U) { + async fn foo(&self) -> &(T, U) { + self + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-generics.stderr b/src/test/ui/async-await/in-trait/async-generics.stderr new file mode 100644 index 000000000..6ae73d9e3 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-generics.stderr @@ -0,0 +1,37 @@ +error[E0311]: the parameter type `U` may not live long enough + --> $DIR/async-generics.rs:9:28 + | +LL | async fn foo(&self) -> &(T, U); + | ^^^^^^^ + | +note: the parameter type `U` must be valid for the anonymous lifetime as defined here... + --> $DIR/async-generics.rs:9:18 + | +LL | async fn foo(&self) -> &(T, U); + | ^ +note: ...so that the reference type `&(T, U)` does not outlive the data it points at + --> $DIR/async-generics.rs:9:28 + | +LL | async fn foo(&self) -> &(T, U); + | ^^^^^^^ + +error[E0311]: the parameter type `T` may not live long enough + --> $DIR/async-generics.rs:9:28 + | +LL | async fn foo(&self) -> &(T, U); + | ^^^^^^^ + | +note: the parameter type `T` must be valid for the anonymous lifetime as defined here... + --> $DIR/async-generics.rs:9:18 + | +LL | async fn foo(&self) -> &(T, U); + | ^ +note: ...so that the reference type `&(T, U)` does not outlive the data it points at + --> $DIR/async-generics.rs:9:28 + | +LL | async fn foo(&self) -> &(T, U); + | ^^^^^^^ + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0311`. diff --git a/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.rs b/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.rs new file mode 100644 index 000000000..3f7448cec --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.rs @@ -0,0 +1,20 @@ +// check-fail +// known-bug: #102682 +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +use std::fmt::Debug; + +trait MyTrait<'a, 'b, T> { + async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T) where T: Debug + Sized; +} + +impl<'a, 'b, T, U> MyTrait<'a, 'b, T> for U { + async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) { + (self, key) + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.stderr b/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.stderr new file mode 100644 index 000000000..0f0242027 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-lifetimes-and-bounds.stderr @@ -0,0 +1,23 @@ +error[E0309]: the parameter type `Self` may not live long enough + --> $DIR/async-lifetimes-and-bounds.rs:11:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T) where T: Debug + Sized; + | ^^^^^^^^^^^^^^^^^ + | + = help: consider adding an explicit lifetime bound `Self: 'a`... + = note: ...so that the reference type `&'a Self` does not outlive the data it points at + +error[E0309]: the parameter type `T` may not live long enough + --> $DIR/async-lifetimes-and-bounds.rs:11:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T) where T: Debug + Sized; + | ^^^^^^^^^^^^^^^^^ ...so that the reference type `&'b T` does not outlive the data it points at + | +help: consider adding an explicit lifetime bound... + | +LL | trait MyTrait<'a, 'b, T: 'b> { + | ++++ + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0309`. diff --git a/src/test/ui/async-await/in-trait/async-lifetimes.rs b/src/test/ui/async-await/in-trait/async-lifetimes.rs new file mode 100644 index 000000000..acbac471c --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-lifetimes.rs @@ -0,0 +1,18 @@ +// check-fail +// known-bug: #102682 +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +trait MyTrait<'a, 'b, T> { + async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T); +} + +impl<'a, 'b, T, U> MyTrait<'a, 'b, T> for U { + async fn foo(&'a self, key: &'b T) -> (&'a U, &'b T) { + (self, key) + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-lifetimes.stderr b/src/test/ui/async-await/in-trait/async-lifetimes.stderr new file mode 100644 index 000000000..9a7d294bb --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-lifetimes.stderr @@ -0,0 +1,23 @@ +error[E0309]: the parameter type `Self` may not live long enough + --> $DIR/async-lifetimes.rs:9:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T); + | ^^^^^^^^^^^^^^^^^ + | + = help: consider adding an explicit lifetime bound `Self: 'a`... + = note: ...so that the reference type `&'a Self` does not outlive the data it points at + +error[E0309]: the parameter type `T` may not live long enough + --> $DIR/async-lifetimes.rs:9:43 + | +LL | async fn foo(&'a self, key: &'b T) -> (&'a Self, &'b T); + | ^^^^^^^^^^^^^^^^^ ...so that the reference type `&'b T` does not outlive the data it points at + | +help: consider adding an explicit lifetime bound... + | +LL | trait MyTrait<'a, 'b, T: 'b> { + | ++++ + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0309`. diff --git a/src/test/ui/async-await/in-trait/async-recursive-generic.rs b/src/test/ui/async-await/in-trait/async-recursive-generic.rs new file mode 100644 index 000000000..6839abd38 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-recursive-generic.rs @@ -0,0 +1,21 @@ +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +trait MyTrait<T> { + async fn foo_recursive(&self, n: usize) -> T; +} + +impl<T> MyTrait<T> for T where T: Copy { + async fn foo_recursive(&self, n: usize) -> T { + //~^ ERROR recursion in an `async fn` requires boxing + if n > 0 { + self.foo_recursive(n - 1).await + } else { + *self + } + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-recursive-generic.stderr b/src/test/ui/async-await/in-trait/async-recursive-generic.stderr new file mode 100644 index 000000000..cab173bdd --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-recursive-generic.stderr @@ -0,0 +1,12 @@ +error[E0733]: recursion in an `async fn` requires boxing + --> $DIR/async-recursive-generic.rs:11:48 + | +LL | async fn foo_recursive(&self, n: usize) -> T { + | ^ recursive `async fn` + | + = note: a recursive `async fn` must be rewritten to return a boxed `dyn Future` + = note: consider using the `async_recursion` crate: https://crates.io/crates/async_recursion + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0733`. diff --git a/src/test/ui/async-await/in-trait/async-recursive.rs b/src/test/ui/async-await/in-trait/async-recursive.rs new file mode 100644 index 000000000..61119f809 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-recursive.rs @@ -0,0 +1,21 @@ +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +trait MyTrait { + async fn foo_recursive(&self, n: usize) -> i32; +} + +impl MyTrait for i32 { + async fn foo_recursive(&self, n: usize) -> i32 { + //~^ ERROR recursion in an `async fn` requires boxing + if n > 0 { + self.foo_recursive(n - 1).await + } else { + *self + } + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-recursive.stderr b/src/test/ui/async-await/in-trait/async-recursive.stderr new file mode 100644 index 000000000..9feff37b3 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-recursive.stderr @@ -0,0 +1,12 @@ +error[E0733]: recursion in an `async fn` requires boxing + --> $DIR/async-recursive.rs:11:48 + | +LL | async fn foo_recursive(&self, n: usize) -> i32 { + | ^^^ recursive `async fn` + | + = note: a recursive `async fn` must be rewritten to return a boxed `dyn Future` + = note: consider using the `async_recursion` crate: https://crates.io/crates/async_recursion + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0733`. diff --git a/src/test/ui/async-await/in-trait/fn-not-async-err.rs b/src/test/ui/async-await/in-trait/fn-not-async-err.rs new file mode 100644 index 000000000..f94d32145 --- /dev/null +++ b/src/test/ui/async-await/in-trait/fn-not-async-err.rs @@ -0,0 +1,17 @@ +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +trait MyTrait { + async fn foo(&self) -> i32; +} + +impl MyTrait for i32 { + fn foo(&self) -> i32 { + //~^ ERROR: `i32` is not a future [E0277] + *self + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/fn-not-async-err.stderr b/src/test/ui/async-await/in-trait/fn-not-async-err.stderr new file mode 100644 index 000000000..03321dc5b --- /dev/null +++ b/src/test/ui/async-await/in-trait/fn-not-async-err.stderr @@ -0,0 +1,17 @@ +error[E0277]: `i32` is not a future + --> $DIR/fn-not-async-err.rs:11:22 + | +LL | fn foo(&self) -> i32 { + | ^^^ `i32` is not a future + | + = help: the trait `Future` is not implemented for `i32` + = note: i32 must be a future or must implement `IntoFuture` to be awaited +note: required by a bound in `MyTrait::foo::{opaque#0}` + --> $DIR/fn-not-async-err.rs:7:28 + | +LL | async fn foo(&self) -> i32; + | ^^^ required by this bound in `MyTrait::foo::{opaque#0}` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/src/test/ui/async-await/in-trait/fn-not-async-err2.rs b/src/test/ui/async-await/in-trait/fn-not-async-err2.rs new file mode 100644 index 000000000..594baa91a --- /dev/null +++ b/src/test/ui/async-await/in-trait/fn-not-async-err2.rs @@ -0,0 +1,21 @@ +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; + +trait MyTrait { + async fn foo(&self) -> i32; +} + +impl MyTrait for i32 { + fn foo(&self) -> impl Future<Output = i32> { + //~^ ERROR `impl Trait` only allowed in function and inherent method return types, not in `impl` method return [E0562] + async { + *self + } + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/fn-not-async-err2.stderr b/src/test/ui/async-await/in-trait/fn-not-async-err2.stderr new file mode 100644 index 000000000..f591f1847 --- /dev/null +++ b/src/test/ui/async-await/in-trait/fn-not-async-err2.stderr @@ -0,0 +1,12 @@ +error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `impl` method return + --> $DIR/fn-not-async-err2.rs:13:22 + | +LL | fn foo(&self) -> impl Future<Output = i32> { + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information + = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0562`. diff --git a/src/test/ui/async-await/in-trait/issue-102138.rs b/src/test/ui/async-await/in-trait/issue-102138.rs new file mode 100644 index 000000000..f61b34ed9 --- /dev/null +++ b/src/test/ui/async-await/in-trait/issue-102138.rs @@ -0,0 +1,46 @@ +// check-pass +// edition:2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; + +async fn yield_now() {} + +trait AsyncIterator { + type Item; + async fn next(&mut self) -> Option<Self::Item>; +} + +struct YieldingRange { + counter: u32, + stop: u32, +} + +impl AsyncIterator for YieldingRange { + type Item = u32; + + async fn next(&mut self) -> Option<Self::Item> { + if self.counter == self.stop { + None + } else { + let c = self.counter; + self.counter += 1; + yield_now().await; + Some(c) + } + } +} + +async fn async_main() { + let mut x = YieldingRange { counter: 0, stop: 10 }; + + while let Some(v) = x.next().await { + println!("Hi: {v}"); + } +} + +fn main() { + let _ = async_main(); +} diff --git a/src/test/ui/async-await/in-trait/issue-102219.rs b/src/test/ui/async-await/in-trait/issue-102219.rs new file mode 100644 index 000000000..9a35f6515 --- /dev/null +++ b/src/test/ui/async-await/in-trait/issue-102219.rs @@ -0,0 +1,10 @@ +// compile-flags:--crate-type=lib +// edition:2021 +// check-pass + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +trait T { + async fn foo(); +} diff --git a/src/test/ui/async-await/in-trait/issue-102310.rs b/src/test/ui/async-await/in-trait/issue-102310.rs new file mode 100644 index 000000000..49c3e9fee --- /dev/null +++ b/src/test/ui/async-await/in-trait/issue-102310.rs @@ -0,0 +1,15 @@ +// check-pass +// edition:2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +pub trait SpiDevice { + async fn transaction<F, R>(&mut self); +} + +impl SpiDevice for () { + async fn transaction<F, R>(&mut self) {} +} + +fn main() {} diff --git a/src/test/ui/async-await/issue-64130-1-sync.rs b/src/test/ui/async-await/issue-64130-1-sync.rs index af83f14bb..1714cec52 100644 --- a/src/test/ui/async-await/issue-64130-1-sync.rs +++ b/src/test/ui/async-await/issue-64130-1-sync.rs @@ -1,7 +1,7 @@ #![feature(negative_impls)] // edition:2018 -// This tests the the specialized async-await-specific error when futures don't implement an +// This tests the specialized async-await-specific error when futures don't implement an // auto trait (which is specifically Sync) due to some type that was captured. struct Foo; diff --git a/src/test/ui/async-await/issue-64130-2-send.rs b/src/test/ui/async-await/issue-64130-2-send.rs index 2362831d8..7a6e5952c 100644 --- a/src/test/ui/async-await/issue-64130-2-send.rs +++ b/src/test/ui/async-await/issue-64130-2-send.rs @@ -1,7 +1,7 @@ #![feature(negative_impls)] // edition:2018 -// This tests the the specialized async-await-specific error when futures don't implement an +// This tests the specialized async-await-specific error when futures don't implement an // auto trait (which is specifically Send) due to some type that was captured. struct Foo; diff --git a/src/test/ui/async-await/issue-64130-3-other.rs b/src/test/ui/async-await/issue-64130-3-other.rs index 52801c35b..630fb2c41 100644 --- a/src/test/ui/async-await/issue-64130-3-other.rs +++ b/src/test/ui/async-await/issue-64130-3-other.rs @@ -2,7 +2,7 @@ #![feature(negative_impls)] // edition:2018 -// This tests the the unspecialized async-await-specific error when futures don't implement an +// This tests the unspecialized async-await-specific error when futures don't implement an // auto trait (which is not Send or Sync) due to some type that was captured. auto trait Qux {} diff --git a/src/test/ui/async-await/issue-66387-if-without-else.stderr b/src/test/ui/async-await/issue-66387-if-without-else.stderr index e8e2a4898..8155fcb56 100644 --- a/src/test/ui/async-await/issue-66387-if-without-else.stderr +++ b/src/test/ui/async-await/issue-66387-if-without-else.stderr @@ -4,7 +4,7 @@ error[E0317]: `if` may be missing an `else` clause LL | / if true { LL | | return 0; LL | | } - | |_____^ expected `()`, found `i32` + | |_____^ expected `i32`, found `()` | = note: `if` expressions without `else` evaluate to `()` = help: consider adding an `else` block that evaluates to the expected type diff --git a/src/test/ui/async-await/issue-70935-complex-spans.drop_tracking.stderr b/src/test/ui/async-await/issue-70935-complex-spans.drop_tracking.stderr index 198de7bf7..7fb881166 100644 --- a/src/test/ui/async-await/issue-70935-complex-spans.drop_tracking.stderr +++ b/src/test/ui/async-await/issue-70935-complex-spans.drop_tracking.stderr @@ -18,7 +18,7 @@ LL | async fn baz<T>(_c: impl FnMut() -> T) where T: Future<Output=()> { | ___________________________________________________________________^ LL | | } | |_^ - = note: required because it captures the following types: `ResumeTy`, `impl for<'r, 's, 't0> Future<Output = ()>`, `()` + = note: required because it captures the following types: `ResumeTy`, `impl Future<Output = ()>`, `()` note: required because it's used within this `async` block --> $DIR/issue-70935-complex-spans.rs:16:16 | diff --git a/src/test/ui/async-await/issue-73541-3.rs b/src/test/ui/async-await/issue-73541-3.rs new file mode 100644 index 000000000..02ca02da8 --- /dev/null +++ b/src/test/ui/async-await/issue-73541-3.rs @@ -0,0 +1,9 @@ +fn main() { + 'aaaaab: loop { + || { + loop { continue 'aaaaaa } + //~^ ERROR use of undeclared label `'aaaaaa` + }; + + } +} diff --git a/src/test/ui/async-await/issue-73541-3.stderr b/src/test/ui/async-await/issue-73541-3.stderr new file mode 100644 index 000000000..53487aaca --- /dev/null +++ b/src/test/ui/async-await/issue-73541-3.stderr @@ -0,0 +1,12 @@ +error[E0426]: use of undeclared label `'aaaaaa` + --> $DIR/issue-73541-3.rs:4:29 + | +LL | 'aaaaab: loop { + | ------- a label with a similar name exists but is unreachable +LL | || { +LL | loop { continue 'aaaaaa } + | ^^^^^^^ undeclared label `'aaaaaa` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0426`. diff --git a/src/test/ui/async-await/issue-73541.rs b/src/test/ui/async-await/issue-73541.rs new file mode 100644 index 000000000..399a07cd3 --- /dev/null +++ b/src/test/ui/async-await/issue-73541.rs @@ -0,0 +1,9 @@ +fn main() { + 'a: loop { + || { + loop { continue 'a } + //~^ ERROR use of unreachable label `'a` + }; + + } +} diff --git a/src/test/ui/async-await/issue-73541.stderr b/src/test/ui/async-await/issue-73541.stderr new file mode 100644 index 000000000..4bb466ff1 --- /dev/null +++ b/src/test/ui/async-await/issue-73541.stderr @@ -0,0 +1,14 @@ +error[E0767]: use of unreachable label `'a` + --> $DIR/issue-73541.rs:4:29 + | +LL | 'a: loop { + | -- unreachable label defined here +LL | || { +LL | loop { continue 'a } + | ^^ unreachable label `'a` + | + = note: labels are unreachable through functions, closures, async blocks and modules + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0767`. diff --git a/src/test/ui/async-await/issue-98634.rs b/src/test/ui/async-await/issue-98634.rs new file mode 100644 index 000000000..b0d38687f --- /dev/null +++ b/src/test/ui/async-await/issue-98634.rs @@ -0,0 +1,50 @@ +// edition: 2021 + +use std::{ + future::Future, + pin::Pin, + task::{Context, Poll, Waker}, +}; + +pub struct StructAsync<F: Fn() -> Pin<Box<dyn Future<Output = ()>>>> { + pub callback: F, +} + +impl<F> Future for StructAsync<F> +where + F: Fn() -> Pin<Box<dyn Future<Output = ()>>>, +{ + type Output = (); + + fn poll(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Self::Output> { + Poll::Pending + } +} + +async fn callback() {} + +struct Runtime; + +fn waker() -> &'static Waker { + todo!() +} + +impl Runtime { + #[track_caller] + pub fn block_on<F: Future>(&self, mut future: F) -> F::Output { + loop { + unsafe { + Pin::new_unchecked(&mut future).poll(&mut Context::from_waker(waker())); + } + } + } +} + +fn main() { + Runtime.block_on(async { + StructAsync { callback }.await; + //~^ ERROR expected `fn() -> impl Future<Output = ()> {callback}` to be a fn item that returns `Pin<Box<(dyn Future<Output = ()> + 'static)>>`, but it returns `impl Future<Output = ()>` + //~| ERROR expected `fn() -> impl Future<Output = ()> {callback}` to be a fn item that returns `Pin<Box<(dyn Future<Output = ()> + 'static)>>`, but it returns `impl Future<Output = ()>` + //~| ERROR expected `fn() -> impl Future<Output = ()> {callback}` to be a fn item that returns `Pin<Box<(dyn Future<Output = ()> + 'static)>>`, but it returns `impl Future<Output = ()>` + }); +} diff --git a/src/test/ui/async-await/issue-98634.stderr b/src/test/ui/async-await/issue-98634.stderr new file mode 100644 index 000000000..5160e48d8 --- /dev/null +++ b/src/test/ui/async-await/issue-98634.stderr @@ -0,0 +1,60 @@ +error[E0271]: expected `fn() -> impl Future<Output = ()> {callback}` to be a fn item that returns `Pin<Box<(dyn Future<Output = ()> + 'static)>>`, but it returns `impl Future<Output = ()>` + --> $DIR/issue-98634.rs:45:23 + | +LL | StructAsync { callback }.await; + | ^^^^^^^^ expected struct `Pin`, found opaque type + | +note: while checking the return type of the `async fn` + --> $DIR/issue-98634.rs:24:21 + | +LL | async fn callback() {} + | ^ checked the `Output` of this `async fn`, found opaque type + = note: expected struct `Pin<Box<(dyn Future<Output = ()> + 'static)>>` + found opaque type `impl Future<Output = ()>` +note: required by a bound in `StructAsync` + --> $DIR/issue-98634.rs:9:35 + | +LL | pub struct StructAsync<F: Fn() -> Pin<Box<dyn Future<Output = ()>>>> { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `StructAsync` + +error[E0271]: expected `fn() -> impl Future<Output = ()> {callback}` to be a fn item that returns `Pin<Box<(dyn Future<Output = ()> + 'static)>>`, but it returns `impl Future<Output = ()>` + --> $DIR/issue-98634.rs:45:9 + | +LL | StructAsync { callback }.await; + | ^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Pin`, found opaque type + | +note: while checking the return type of the `async fn` + --> $DIR/issue-98634.rs:24:21 + | +LL | async fn callback() {} + | ^ checked the `Output` of this `async fn`, found opaque type + = note: expected struct `Pin<Box<(dyn Future<Output = ()> + 'static)>>` + found opaque type `impl Future<Output = ()>` +note: required by a bound in `StructAsync` + --> $DIR/issue-98634.rs:9:35 + | +LL | pub struct StructAsync<F: Fn() -> Pin<Box<dyn Future<Output = ()>>>> { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `StructAsync` + +error[E0271]: expected `fn() -> impl Future<Output = ()> {callback}` to be a fn item that returns `Pin<Box<(dyn Future<Output = ()> + 'static)>>`, but it returns `impl Future<Output = ()>` + --> $DIR/issue-98634.rs:45:33 + | +LL | StructAsync { callback }.await; + | ^^^^^^ expected struct `Pin`, found opaque type + | +note: while checking the return type of the `async fn` + --> $DIR/issue-98634.rs:24:21 + | +LL | async fn callback() {} + | ^ checked the `Output` of this `async fn`, found opaque type + = note: expected struct `Pin<Box<(dyn Future<Output = ()> + 'static)>>` + found opaque type `impl Future<Output = ()>` +note: required by a bound in `StructAsync` + --> $DIR/issue-98634.rs:9:35 + | +LL | pub struct StructAsync<F: Fn() -> Pin<Box<dyn Future<Output = ()>>>> { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `StructAsync` + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0271`. diff --git a/src/test/ui/async-await/issues/issue-65419/issue-65419-async-fn-resume-after-panic.rs b/src/test/ui/async-await/issues/issue-65419/issue-65419-async-fn-resume-after-panic.rs index 5e71229be..b4ea4c9f6 100644 --- a/src/test/ui/async-await/issues/issue-65419/issue-65419-async-fn-resume-after-panic.rs +++ b/src/test/ui/async-await/issues/issue-65419/issue-65419-async-fn-resume-after-panic.rs @@ -6,7 +6,6 @@ // error-pattern: thread 'main' panicked at '`async fn` resumed after panicking' // edition:2018 // ignore-wasm no panic or subprocess support -// ignore-emscripten no panic or subprocess support #![feature(generators, generator_trait)] diff --git a/src/test/ui/async-await/issues/issue-95307.stderr b/src/test/ui/async-await/issues/issue-95307.stderr index 1c12f1e48..a497cebe3 100644 --- a/src/test/ui/async-await/issues/issue-95307.stderr +++ b/src/test/ui/async-await/issues/issue-95307.stderr @@ -9,7 +9,7 @@ LL | async fn new() -> [u8; _]; = note: `async` trait functions are not currently supported = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information - = help: add `#![feature(return_position_impl_trait_in_trait)]` to the crate attributes to enable + = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable error: in expressions, `_` can only be used on the left-hand side of an assignment --> $DIR/issue-95307.rs:7:28 diff --git a/src/test/ui/async-await/large_moves.attribute.stderr b/src/test/ui/async-await/large_moves.attribute.stderr index 8d3f0b77f..da34f44b2 100644 --- a/src/test/ui/async-await/large_moves.attribute.stderr +++ b/src/test/ui/async-await/large_moves.attribute.stderr @@ -10,12 +10,12 @@ LL | | dbg!(y); LL | | }; | |_____^ value moved from here | + = note: The current maximum size is 1000, but it can be customized with the move_size_limit attribute: `#![move_size_limit = "..."]` note: the lint level is defined here --> $DIR/large_moves.rs:1:9 | LL | #![deny(large_assignments)] | ^^^^^^^^^^^^^^^^^ - = note: The current maximum size is 1000, but it can be customized with the move_size_limit attribute: `#![move_size_limit = "..."]` error: moving 10024 bytes --> $DIR/large_moves.rs:18:14 diff --git a/src/test/ui/async-await/large_moves.option.stderr b/src/test/ui/async-await/large_moves.option.stderr index 8d3f0b77f..da34f44b2 100644 --- a/src/test/ui/async-await/large_moves.option.stderr +++ b/src/test/ui/async-await/large_moves.option.stderr @@ -10,12 +10,12 @@ LL | | dbg!(y); LL | | }; | |_____^ value moved from here | + = note: The current maximum size is 1000, but it can be customized with the move_size_limit attribute: `#![move_size_limit = "..."]` note: the lint level is defined here --> $DIR/large_moves.rs:1:9 | LL | #![deny(large_assignments)] | ^^^^^^^^^^^^^^^^^ - = note: The current maximum size is 1000, but it can be customized with the move_size_limit attribute: `#![move_size_limit = "..."]` error: moving 10024 bytes --> $DIR/large_moves.rs:18:14 diff --git a/src/test/ui/async-await/multiple-lifetimes/ret-impl-trait-one.stderr b/src/test/ui/async-await/multiple-lifetimes/ret-impl-trait-one.stderr index 3128b4df4..ae4d0d585 100644 --- a/src/test/ui/async-await/multiple-lifetimes/ret-impl-trait-one.stderr +++ b/src/test/ui/async-await/multiple-lifetimes/ret-impl-trait-one.stderr @@ -25,7 +25,7 @@ LL | | (a, b) LL | | } | |_^ | -help: to declare that the `impl Trait` captures `'b`, you can add an explicit `'b` lifetime bound +help: to declare that `impl Trait<'a>` captures `'b`, you can add an explicit `'b` lifetime bound | LL | async fn async_ret_impl_trait1<'a, 'b>(a: &'a u8, b: &'b u8) -> impl Trait<'a> + 'b { | ++++ diff --git a/src/test/ui/async-await/no-const-async.stderr b/src/test/ui/async-await/no-const-async.stderr index e6f6e9e9f..c5bd520aa 100644 --- a/src/test/ui/async-await/no-const-async.stderr +++ b/src/test/ui/async-await/no-const-async.stderr @@ -18,7 +18,7 @@ note: ...which requires borrow-checking `x`... | LL | pub const async fn x() {} | ^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires processing `x`... +note: ...which requires processing MIR for `x`... --> $DIR/no-const-async.rs:4:1 | LL | pub const async fn x() {} |