diff options
Diffstat (limited to 'tests/ui/async-await')
129 files changed, 2300 insertions, 279 deletions
diff --git a/tests/ui/async-await/async-await-let-else.drop_tracking.stderr b/tests/ui/async-await/async-await-let-else.drop_tracking.stderr new file mode 100644 index 000000000..fb83ca90a --- /dev/null +++ b/tests/ui/async-await/async-await-let-else.drop_tracking.stderr @@ -0,0 +1,106 @@ +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:48:13 + | +LL | is_send(foo(Some(true))); + | ^^^^^^^^^^^^^^^ future returned by `foo` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:11:14 + | +LL | let r = Rc::new(()); + | - has type `Rc<()>` which is not `Send` +LL | bar().await + | ^^^^^^ await occurs here, with `r` maybe used later +LL | }; + | - `r` is later dropped here +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error[E0277]: `Rc<()>` cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:50:13 + | +LL | async fn foo2(x: Option<bool>) { + | - within this `impl Future<Output = ()>` +... +LL | is_send(foo2(Some(true))); + | ------- ^^^^^^^^^^^^^^^^ `Rc<()>` cannot be sent between threads safely + | | + | required by a bound introduced by this call + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: required because it's used within this `async fn` body + --> $DIR/async-await-let-else.rs:27:29 + | +LL | async fn bar2<T>(_: T) -> ! { + | _____________________________^ +LL | | panic!() +LL | | } + | |_^ + = note: required because it captures the following types: `ResumeTy`, `Option<bool>`, `impl Future<Output = !>`, `()` +note: required because it's used within this `async fn` body + --> $DIR/async-await-let-else.rs:21:32 + | +LL | async fn foo2(x: Option<bool>) { + | ________________________________^ +LL | | let Some(_) = x else { +LL | | bar2(Rc::new(())).await +LL | | }; +LL | | } + | |_^ +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:52:13 + | +LL | is_send(foo3(Some(true))); + | ^^^^^^^^^^^^^^^^ future returned by `foo3` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:33:28 + | +LL | (Rc::new(()), bar().await); + | ----------- ^^^^^^ - `Rc::new(())` is later dropped here + | | | + | | await occurs here, with `Rc::new(())` maybe used later + | has type `Rc<()>` which is not `Send` +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:54:13 + | +LL | is_send(foo4(Some(true))); + | ^^^^^^^^^^^^^^^^ future returned by `foo4` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:41:14 + | +LL | let r = Rc::new(()); + | - has type `Rc<()>` which is not `Send` +LL | bar().await; + | ^^^^^^ await occurs here, with `r` maybe used later +... +LL | }; + | - `r` is later dropped here +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/async-await/async-await-let-else.drop_tracking_mir.stderr b/tests/ui/async-await/async-await-let-else.drop_tracking_mir.stderr new file mode 100644 index 000000000..c284bbfb1 --- /dev/null +++ b/tests/ui/async-await/async-await-let-else.drop_tracking_mir.stderr @@ -0,0 +1,100 @@ +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:48:13 + | +LL | is_send(foo(Some(true))); + | ^^^^^^^^^^^^^^^ future returned by `foo` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:11:14 + | +LL | let r = Rc::new(()); + | - has type `Rc<()>` which is not `Send` +LL | bar().await + | ^^^^^^ await occurs here, with `r` maybe used later +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error[E0277]: `Rc<()>` cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:50:13 + | +LL | async fn foo2(x: Option<bool>) { + | - within this `impl Future<Output = ()>` +... +LL | is_send(foo2(Some(true))); + | ------- ^^^^^^^^^^^^^^^^ `Rc<()>` cannot be sent between threads safely + | | + | required by a bound introduced by this call + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: required because it's used within this `async fn` body + --> $DIR/async-await-let-else.rs:27:29 + | +LL | async fn bar2<T>(_: T) -> ! { + | _____________________________^ +LL | | panic!() +LL | | } + | |_^ + = note: required because it captures the following types: `impl Future<Output = !>` +note: required because it's used within this `async fn` body + --> $DIR/async-await-let-else.rs:21:32 + | +LL | async fn foo2(x: Option<bool>) { + | ________________________________^ +LL | | let Some(_) = x else { +LL | | bar2(Rc::new(())).await +LL | | }; +LL | | } + | |_^ +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:52:13 + | +LL | is_send(foo3(Some(true))); + | ^^^^^^^^^^^^^^^^ future returned by `foo3` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:33:28 + | +LL | (Rc::new(()), bar().await); + | ----------- ^^^^^^ await occurs here, with `Rc::new(())` maybe used later + | | + | has type `Rc<()>` which is not `Send` +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:54:13 + | +LL | is_send(foo4(Some(true))); + | ^^^^^^^^^^^^^^^^ future returned by `foo4` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:41:14 + | +LL | let r = Rc::new(()); + | - has type `Rc<()>` which is not `Send` +LL | bar().await; + | ^^^^^^ await occurs here, with `r` maybe used later +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/async-await/async-await-let-else.no_drop_tracking.stderr b/tests/ui/async-await/async-await-let-else.no_drop_tracking.stderr new file mode 100644 index 000000000..d3c5e80a3 --- /dev/null +++ b/tests/ui/async-await/async-await-let-else.no_drop_tracking.stderr @@ -0,0 +1,90 @@ +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:48:13 + | +LL | is_send(foo(Some(true))); + | ^^^^^^^^^^^^^^^ future returned by `foo` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:11:14 + | +LL | let r = Rc::new(()); + | - has type `Rc<()>` which is not `Send` +LL | bar().await + | ^^^^^^ await occurs here, with `r` maybe used later +LL | }; + | - `r` is later dropped here +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:50:13 + | +LL | is_send(foo2(Some(true))); + | ^^^^^^^^^^^^^^^^ future returned by `foo2` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:23:26 + | +LL | bar2(Rc::new(())).await + | ----------- ^^^^^^ await occurs here, with `Rc::new(())` maybe used later + | | + | has type `Rc<()>` which is not `Send` +LL | }; + | - `Rc::new(())` is later dropped here +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:52:13 + | +LL | is_send(foo3(Some(true))); + | ^^^^^^^^^^^^^^^^ future returned by `foo3` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:33:28 + | +LL | (Rc::new(()), bar().await); + | ----------- ^^^^^^ - `Rc::new(())` is later dropped here + | | | + | | await occurs here, with `Rc::new(())` maybe used later + | has type `Rc<()>` which is not `Send` +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: future cannot be sent between threads safely + --> $DIR/async-await-let-else.rs:54:13 + | +LL | is_send(foo4(Some(true))); + | ^^^^^^^^^^^^^^^^ future returned by `foo4` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-await-let-else.rs:41:14 + | +LL | let r = Rc::new(()); + | - has type `Rc<()>` which is not `Send` +LL | bar().await; + | ^^^^^^ await occurs here, with `r` maybe used later +... +LL | }; + | - `r` is later dropped here +note: required by a bound in `is_send` + --> $DIR/async-await-let-else.rs:19:15 + | +LL | fn is_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `is_send` + +error: aborting due to 4 previous errors + diff --git a/tests/ui/async-await/async-await-let-else.rs b/tests/ui/async-await/async-await-let-else.rs index 3fb2142b9..113d576b5 100644 --- a/tests/ui/async-await/async-await-let-else.rs +++ b/tests/ui/async-await/async-await-let-else.rs @@ -1,7 +1,7 @@ // edition:2021 -// revisions: drop-tracking no-drop-tracking -// [drop-tracking] compile-flags: -Zdrop-tracking=yes -// [no-drop-tracking] compile-flags: -Zdrop-tracking=no +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir use std::rc::Rc; diff --git a/tests/ui/async-await/async-block-control-flow-static-semantics.stderr b/tests/ui/async-await/async-block-control-flow-static-semantics.stderr index c4487eb84..a6dbb0716 100644 --- a/tests/ui/async-await/async-block-control-flow-static-semantics.stderr +++ b/tests/ui/async-await/async-block-control-flow-static-semantics.stderr @@ -57,7 +57,7 @@ error[E0308]: mismatched types --> $DIR/async-block-control-flow-static-semantics.rs:49:44 | LL | fn rethrow_targets_async_block_not_fn() -> Result<u8, MyErr> { - | ---------------------------------- ^^^^^^^^^^^^^^^^^ expected enum `Result`, found `()` + | ---------------------------------- ^^^^^^^^^^^^^^^^^ expected `Result<u8, MyErr>`, found `()` | | | implicitly returns `()` as its body has no tail or `return` expression | @@ -68,7 +68,7 @@ error[E0308]: mismatched types --> $DIR/async-block-control-flow-static-semantics.rs:58:50 | LL | fn rethrow_targets_async_block_not_async_fn() -> Result<u8, MyErr> { - | ---------------------------------------- ^^^^^^^^^^^^^^^^^ expected enum `Result`, found `()` + | ---------------------------------------- ^^^^^^^^^^^^^^^^^ expected `Result<u8, MyErr>`, found `()` | | | implicitly returns `()` as its body has no tail or `return` expression | diff --git a/tests/ui/async-await/async-error-span.stderr b/tests/ui/async-await/async-error-span.drop_tracking.stderr index 7d4447b6d..c6257cb32 100644 --- a/tests/ui/async-await/async-error-span.stderr +++ b/tests/ui/async-await/async-error-span.drop_tracking.stderr @@ -1,5 +1,5 @@ error[E0277]: `()` is not a future - --> $DIR/async-error-span.rs:7:20 + --> $DIR/async-error-span.rs:10:20 | LL | fn get_future() -> impl Future<Output = ()> { | ^^^^^^^^^^^^^^^^^^^^^^^^ `()` is not a future @@ -8,13 +8,13 @@ LL | fn get_future() -> impl Future<Output = ()> { = note: () must be a future or must implement `IntoFuture` to be awaited error[E0698]: type inside `async fn` body must be known in this context - --> $DIR/async-error-span.rs:13:9 + --> $DIR/async-error-span.rs:16:9 | LL | let a; | ^ cannot infer type | note: the type is part of the `async fn` body because of this `await` - --> $DIR/async-error-span.rs:14:17 + --> $DIR/async-error-span.rs:19:17 | LL | get_future().await; | ^^^^^^ diff --git a/tests/ui/async-await/async-error-span.drop_tracking_mir.stderr b/tests/ui/async-await/async-error-span.drop_tracking_mir.stderr new file mode 100644 index 000000000..2f29ee6cd --- /dev/null +++ b/tests/ui/async-await/async-error-span.drop_tracking_mir.stderr @@ -0,0 +1,24 @@ +error[E0277]: `()` is not a future + --> $DIR/async-error-span.rs:10:20 + | +LL | fn get_future() -> impl Future<Output = ()> { + | ^^^^^^^^^^^^^^^^^^^^^^^^ `()` is not a future + | + = help: the trait `Future` is not implemented for `()` + = note: () must be a future or must implement `IntoFuture` to be awaited + +error[E0282]: type annotations needed + --> $DIR/async-error-span.rs:16:9 + | +LL | let a; + | ^ + | +help: consider giving `a` an explicit type + | +LL | let a: /* Type */; + | ++++++++++++ + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0277, E0282. +For more information about an error, try `rustc --explain E0277`. diff --git a/tests/ui/async-await/async-error-span.no_drop_tracking.stderr b/tests/ui/async-await/async-error-span.no_drop_tracking.stderr new file mode 100644 index 000000000..c6257cb32 --- /dev/null +++ b/tests/ui/async-await/async-error-span.no_drop_tracking.stderr @@ -0,0 +1,25 @@ +error[E0277]: `()` is not a future + --> $DIR/async-error-span.rs:10:20 + | +LL | fn get_future() -> impl Future<Output = ()> { + | ^^^^^^^^^^^^^^^^^^^^^^^^ `()` is not a future + | + = help: the trait `Future` is not implemented for `()` + = note: () must be a future or must implement `IntoFuture` to be awaited + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/async-error-span.rs:16:9 + | +LL | let a; + | ^ cannot infer type + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/async-error-span.rs:19:17 + | +LL | get_future().await; + | ^^^^^^ + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0277, E0698. +For more information about an error, try `rustc --explain E0277`. diff --git a/tests/ui/async-await/async-error-span.rs b/tests/ui/async-await/async-error-span.rs index 86d459bf0..c9ecf359e 100644 --- a/tests/ui/async-await/async-error-span.rs +++ b/tests/ui/async-await/async-error-span.rs @@ -1,3 +1,6 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // edition:2018 // Regression test for issue #62382. @@ -10,7 +13,9 @@ fn get_future() -> impl Future<Output = ()> { } async fn foo() { - let a; //~ ERROR type inside `async fn` body must be known in this context + let a; + //[no_drop_tracking,drop_tracking]~^ ERROR type inside `async fn` body must be known in this context + //[drop_tracking_mir]~^^ ERROR type annotations needed get_future().await; } diff --git a/tests/ui/async-await/async-fn-nonsend.drop_tracking.stderr b/tests/ui/async-await/async-fn-nonsend.drop_tracking.stderr new file mode 100644 index 000000000..0f0dc335e --- /dev/null +++ b/tests/ui/async-await/async-fn-nonsend.drop_tracking.stderr @@ -0,0 +1,49 @@ +error: future cannot be sent between threads safely + --> $DIR/async-fn-nonsend.rs:72:17 + | +LL | assert_send(non_send_temporary_in_match()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_send_temporary_in_match` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-fn-nonsend.rs:36:25 + | +LL | match Some(non_send()) { + | ---------------- has type `Option<impl Debug>` which is not `Send` +LL | Some(_) => fut().await, + | ^^^^^^ await occurs here, with `Some(non_send())` maybe used later +... +LL | } + | - `Some(non_send())` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/async-fn-nonsend.rs:67:24 + | +LL | fn assert_send(_: impl Send) {} + | ^^^^ required by this bound in `assert_send` + +error: future cannot be sent between threads safely + --> $DIR/async-fn-nonsend.rs:74:17 + | +LL | assert_send(non_sync_with_method_call()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_sync_with_method_call` is not `Send` + | + = 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:49:14 + | +LL | let f: &mut std::fmt::Formatter = &mut get_formatter(); + | --------------- has type `Formatter<'_>` which is not `Send` +... +LL | fut().await; + | ^^^^^^ await occurs here, with `get_formatter()` maybe used later +LL | } +LL | } + | - `get_formatter()` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/async-fn-nonsend.rs:67:24 + | +LL | fn assert_send(_: impl Send) {} + | ^^^^ required by this bound in `assert_send` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/async-fn-nonsend.drop_tracking_mir.stderr b/tests/ui/async-await/async-fn-nonsend.drop_tracking_mir.stderr new file mode 100644 index 000000000..57a012801 --- /dev/null +++ b/tests/ui/async-await/async-fn-nonsend.drop_tracking_mir.stderr @@ -0,0 +1,43 @@ +error: future cannot be sent between threads safely + --> $DIR/async-fn-nonsend.rs:72:17 + | +LL | assert_send(non_send_temporary_in_match()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_send_temporary_in_match` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-fn-nonsend.rs:36:25 + | +LL | match Some(non_send()) { + | ---------------- has type `Option<impl Debug>` which is not `Send` +LL | Some(_) => fut().await, + | ^^^^^^ await occurs here, with `Some(non_send())` maybe used later +note: required by a bound in `assert_send` + --> $DIR/async-fn-nonsend.rs:67:24 + | +LL | fn assert_send(_: impl Send) {} + | ^^^^ required by this bound in `assert_send` + +error: future cannot be sent between threads safely + --> $DIR/async-fn-nonsend.rs:74:17 + | +LL | assert_send(non_sync_with_method_call()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_sync_with_method_call` is not `Send` + | + = 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:49:14 + | +LL | let f: &mut std::fmt::Formatter = &mut get_formatter(); + | --------------- has type `Formatter<'_>` which is not `Send` +... +LL | fut().await; + | ^^^^^^ await occurs here, with `get_formatter()` maybe used later +note: required by a bound in `assert_send` + --> $DIR/async-fn-nonsend.rs:67:24 + | +LL | fn assert_send(_: impl Send) {} + | ^^^^ required by this bound in `assert_send` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/async-fn-nonsend.no_drop_tracking.stderr b/tests/ui/async-await/async-fn-nonsend.no_drop_tracking.stderr new file mode 100644 index 000000000..5cec21d89 --- /dev/null +++ b/tests/ui/async-await/async-fn-nonsend.no_drop_tracking.stderr @@ -0,0 +1,120 @@ +error: future cannot be sent between threads safely + --> $DIR/async-fn-nonsend.rs:70:17 + | +LL | assert_send(local_dropped_before_await()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `local_dropped_before_await` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-fn-nonsend.rs:27:10 + | +LL | let x = non_send(); + | - has type `impl Debug` which is not `Send` +LL | drop(x); +LL | fut().await; + | ^^^^^^ await occurs here, with `x` maybe used later +LL | } + | - `x` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/async-fn-nonsend.rs:67:24 + | +LL | fn assert_send(_: impl Send) {} + | ^^^^ required by this bound in `assert_send` + +error: future cannot be sent between threads safely + --> $DIR/async-fn-nonsend.rs:72:17 + | +LL | assert_send(non_send_temporary_in_match()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_send_temporary_in_match` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` +note: future is not `Send` as this value is used across an await + --> $DIR/async-fn-nonsend.rs:36:25 + | +LL | match Some(non_send()) { + | ---------- has type `impl Debug` which is not `Send` +LL | Some(_) => fut().await, + | ^^^^^^ await occurs here, with `non_send()` maybe used later +... +LL | } + | - `non_send()` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/async-fn-nonsend.rs:67:24 + | +LL | fn assert_send(_: impl Send) {} + | ^^^^ required by this bound in `assert_send` + +error: future cannot be sent between threads safely + --> $DIR/async-fn-nonsend.rs:74:17 + | +LL | assert_send(non_sync_with_method_call()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_sync_with_method_call` is not `Send` + | + = 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:49:14 + | +LL | let f: &mut std::fmt::Formatter = &mut get_formatter(); + | --------------- has type `Formatter<'_>` which is not `Send` +... +LL | fut().await; + | ^^^^^^ await occurs here, with `get_formatter()` maybe used later +LL | } +LL | } + | - `get_formatter()` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/async-fn-nonsend.rs:67:24 + | +LL | fn assert_send(_: impl Send) {} + | ^^^^ required by this bound in `assert_send` + +error: future cannot be sent between threads safely + --> $DIR/async-fn-nonsend.rs:76:17 + | +LL | assert_send(non_sync_with_method_call_panic()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_sync_with_method_call_panic` is not `Send` + | + = 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:56:14 + | +LL | let f: &mut std::fmt::Formatter = panic!(); + | - has type `&mut Formatter<'_>` which is not `Send` +LL | if non_sync().fmt(f).unwrap() == () { +LL | fut().await; + | ^^^^^^ await occurs here, with `f` maybe used later +LL | } +LL | } + | - `f` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/async-fn-nonsend.rs:67:24 + | +LL | fn assert_send(_: impl Send) {} + | ^^^^ required by this bound in `assert_send` + +error: future cannot be sent between threads safely + --> $DIR/async-fn-nonsend.rs:78:17 + | +LL | assert_send(non_sync_with_method_call_infinite_loop()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_sync_with_method_call_infinite_loop` is not `Send` + | + = 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:63:14 + | +LL | let f: &mut std::fmt::Formatter = loop {}; + | - has type `&mut Formatter<'_>` which is not `Send` +LL | if non_sync().fmt(f).unwrap() == () { +LL | fut().await; + | ^^^^^^ await occurs here, with `f` maybe used later +LL | } +LL | } + | - `f` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/async-fn-nonsend.rs:67:24 + | +LL | fn assert_send(_: impl Send) {} + | ^^^^ required by this bound in `assert_send` + +error: aborting due to 5 previous errors + diff --git a/tests/ui/async-await/async-fn-nonsend.rs b/tests/ui/async-await/async-fn-nonsend.rs index d7f8d7ac5..ed440bd01 100644 --- a/tests/ui/async-await/async-fn-nonsend.rs +++ b/tests/ui/async-await/async-fn-nonsend.rs @@ -1,5 +1,8 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // edition:2018 -// compile-flags: --crate-type lib -Zdrop-tracking +// compile-flags: --crate-type lib use std::{cell::RefCell, fmt::Debug, rc::Rc}; @@ -65,10 +68,13 @@ fn assert_send(_: impl Send) {} pub fn pass_assert() { assert_send(local_dropped_before_await()); + //[no_drop_tracking]~^ ERROR future cannot be sent between threads safely assert_send(non_send_temporary_in_match()); //~^ ERROR future cannot be sent between threads safely assert_send(non_sync_with_method_call()); //~^ ERROR future cannot be sent between threads safely assert_send(non_sync_with_method_call_panic()); + //[no_drop_tracking]~^ ERROR future cannot be sent between threads safely assert_send(non_sync_with_method_call_infinite_loop()); + //[no_drop_tracking]~^ ERROR future cannot be sent between threads safely } diff --git a/tests/ui/async-await/async-fn-nonsend.stderr b/tests/ui/async-await/async-fn-nonsend.stderr index a7b872fe4..0f0dc335e 100644 --- a/tests/ui/async-await/async-fn-nonsend.stderr +++ b/tests/ui/async-await/async-fn-nonsend.stderr @@ -1,12 +1,12 @@ error: future cannot be sent between threads safely - --> $DIR/async-fn-nonsend.rs:68:17 + --> $DIR/async-fn-nonsend.rs:72:17 | LL | assert_send(non_send_temporary_in_match()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_send_temporary_in_match` is not `Send` | = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>` note: future is not `Send` as this value is used across an await - --> $DIR/async-fn-nonsend.rs:33:25 + --> $DIR/async-fn-nonsend.rs:36:25 | LL | match Some(non_send()) { | ---------------- has type `Option<impl Debug>` which is not `Send` @@ -16,20 +16,20 @@ LL | Some(_) => fut().await, LL | } | - `Some(non_send())` is later dropped here note: required by a bound in `assert_send` - --> $DIR/async-fn-nonsend.rs:64:24 + --> $DIR/async-fn-nonsend.rs:67:24 | LL | fn assert_send(_: impl Send) {} | ^^^^ required by this bound in `assert_send` error: future cannot be sent between threads safely - --> $DIR/async-fn-nonsend.rs:70:17 + --> $DIR/async-fn-nonsend.rs:74:17 | LL | assert_send(non_sync_with_method_call()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_sync_with_method_call` is not `Send` | = 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 + --> $DIR/async-fn-nonsend.rs:49:14 | LL | let f: &mut std::fmt::Formatter = &mut get_formatter(); | --------------- has type `Formatter<'_>` which is not `Send` @@ -40,7 +40,7 @@ LL | } LL | } | - `get_formatter()` is later dropped here note: required by a bound in `assert_send` - --> $DIR/async-fn-nonsend.rs:64:24 + --> $DIR/async-fn-nonsend.rs:67:24 | LL | fn assert_send(_: impl Send) {} | ^^^^ required by this bound in `assert_send` diff --git a/tests/ui/async-await/async-fn-path-elision.stderr b/tests/ui/async-await/async-fn-path-elision.stderr index 5e0c8c299..224198653 100644 --- a/tests/ui/async-await/async-fn-path-elision.stderr +++ b/tests/ui/async-await/async-fn-path-elision.stderr @@ -4,7 +4,6 @@ error[E0726]: implicit elided lifetime not allowed here LL | async fn error(lt: HasLifetime) { | ^^^^^^^^^^^ expected lifetime parameter | - = note: assuming a `'static` lifetime... help: indicate the anonymous lifetime | LL | async fn error(lt: HasLifetime<'_>) { diff --git a/tests/ui/async-await/default-struct-update.rs b/tests/ui/async-await/default-struct-update.rs index 64fb6280d..daee8469a 100644 --- a/tests/ui/async-await/default-struct-update.rs +++ b/tests/ui/async-await/default-struct-update.rs @@ -1,6 +1,8 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // build-pass // edition:2018 -// compile-flags: -Zdrop-tracking=y fn main() { let _ = foo(); diff --git a/tests/ui/async-await/dont-suggest-missing-await.stderr b/tests/ui/async-await/dont-suggest-missing-await.stderr index 627bf05bb..1fa4e5db0 100644 --- a/tests/ui/async-await/dont-suggest-missing-await.stderr +++ b/tests/ui/async-await/dont-suggest-missing-await.stderr @@ -2,17 +2,15 @@ error[E0308]: mismatched types --> $DIR/dont-suggest-missing-await.rs:14:18 | LL | take_u32(x) - | -------- ^ expected `u32`, found opaque type + | -------- ^ expected `u32`, found future | | | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/dont-suggest-missing-await.rs:7:24 +note: calling an async function returns a future + --> $DIR/dont-suggest-missing-await.rs:14:18 | -LL | async fn make_u32() -> u32 { - | ^^^ checked the `Output` of this `async fn`, found opaque type - = note: expected type `u32` - found opaque type `impl Future<Output = u32>` +LL | take_u32(x) + | ^ note: function defined here --> $DIR/dont-suggest-missing-await.rs:5:4 | diff --git a/tests/ui/async-await/drop-and-assign.rs b/tests/ui/async-await/drop-and-assign.rs index fa3f33036..e520dfbdc 100644 --- a/tests/ui/async-await/drop-and-assign.rs +++ b/tests/ui/async-await/drop-and-assign.rs @@ -1,5 +1,7 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // edition:2021 -// compile-flags: -Zdrop-tracking // build-pass struct A; diff --git a/tests/ui/async-await/drop-track-field-assign-nonsend.stderr b/tests/ui/async-await/drop-track-field-assign-nonsend.drop_tracking.stderr index d95483c81..e2bba812d 100644 --- a/tests/ui/async-await/drop-track-field-assign-nonsend.stderr +++ b/tests/ui/async-await/drop-track-field-assign-nonsend.drop_tracking.stderr @@ -1,12 +1,12 @@ error: future cannot be sent between threads safely - --> $DIR/drop-track-field-assign-nonsend.rs:43:17 + --> $DIR/drop-track-field-assign-nonsend.rs:45:17 | LL | assert_send(agent.handle()); | ^^^^^^^^^^^^^^ future returned by `handle` is not `Send` | = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<String>` note: future is not `Send` as this value is used across an await - --> $DIR/drop-track-field-assign-nonsend.rs:21:38 + --> $DIR/drop-track-field-assign-nonsend.rs:23:38 | LL | let mut info = self.info_result.clone(); | -------- has type `InfoResult` which is not `Send` @@ -16,7 +16,7 @@ LL | let _ = send_element(element).await; LL | } | - `mut info` is later dropped here note: required by a bound in `assert_send` - --> $DIR/drop-track-field-assign-nonsend.rs:38:19 + --> $DIR/drop-track-field-assign-nonsend.rs:40:19 | LL | fn assert_send<T: Send>(_: T) {} | ^^^^ required by this bound in `assert_send` diff --git a/tests/ui/async-await/drop-track-field-assign-nonsend.drop_tracking_mir.stderr b/tests/ui/async-await/drop-track-field-assign-nonsend.drop_tracking_mir.stderr new file mode 100644 index 000000000..b89d86804 --- /dev/null +++ b/tests/ui/async-await/drop-track-field-assign-nonsend.drop_tracking_mir.stderr @@ -0,0 +1,23 @@ +error: future cannot be sent between threads safely + --> $DIR/drop-track-field-assign-nonsend.rs:45:17 + | +LL | assert_send(agent.handle()); + | ^^^^^^^^^^^^^^ future returned by `handle` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<String>` +note: future is not `Send` as this value is used across an await + --> $DIR/drop-track-field-assign-nonsend.rs:23:38 + | +LL | let mut info = self.info_result.clone(); + | -------- has type `InfoResult` which is not `Send` +... +LL | let _ = send_element(element).await; + | ^^^^^^ await occurs here, with `mut info` maybe used later +note: required by a bound in `assert_send` + --> $DIR/drop-track-field-assign-nonsend.rs:40:19 + | +LL | fn assert_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `assert_send` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/drop-track-field-assign-nonsend.no_drop_tracking.stderr b/tests/ui/async-await/drop-track-field-assign-nonsend.no_drop_tracking.stderr new file mode 100644 index 000000000..e2bba812d --- /dev/null +++ b/tests/ui/async-await/drop-track-field-assign-nonsend.no_drop_tracking.stderr @@ -0,0 +1,25 @@ +error: future cannot be sent between threads safely + --> $DIR/drop-track-field-assign-nonsend.rs:45:17 + | +LL | assert_send(agent.handle()); + | ^^^^^^^^^^^^^^ future returned by `handle` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<String>` +note: future is not `Send` as this value is used across an await + --> $DIR/drop-track-field-assign-nonsend.rs:23:38 + | +LL | let mut info = self.info_result.clone(); + | -------- has type `InfoResult` which is not `Send` +... +LL | let _ = send_element(element).await; + | ^^^^^^ await occurs here, with `mut info` maybe used later +LL | } + | - `mut info` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/drop-track-field-assign-nonsend.rs:40:19 + | +LL | fn assert_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `assert_send` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/drop-track-field-assign-nonsend.rs b/tests/ui/async-await/drop-track-field-assign-nonsend.rs index b6c0fda15..3e2228000 100644 --- a/tests/ui/async-await/drop-track-field-assign-nonsend.rs +++ b/tests/ui/async-await/drop-track-field-assign-nonsend.rs @@ -1,6 +1,8 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // Derived from an ICE found in tokio-xmpp during a crater run. // edition:2021 -// compile-flags: -Zdrop-tracking #![allow(dead_code)] diff --git a/tests/ui/async-await/drop-track-field-assign.rs b/tests/ui/async-await/drop-track-field-assign.rs index 3a393cd16..dd0e3f11c 100644 --- a/tests/ui/async-await/drop-track-field-assign.rs +++ b/tests/ui/async-await/drop-track-field-assign.rs @@ -1,6 +1,8 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // Derived from an ICE found in tokio-xmpp during a crater run. // edition:2021 -// compile-flags: -Zdrop-tracking // build-pass #![allow(dead_code)] diff --git a/tests/ui/async-await/field-assign-nonsend.drop_tracking.stderr b/tests/ui/async-await/field-assign-nonsend.drop_tracking.stderr new file mode 100644 index 000000000..ac461a671 --- /dev/null +++ b/tests/ui/async-await/field-assign-nonsend.drop_tracking.stderr @@ -0,0 +1,25 @@ +error: future cannot be sent between threads safely + --> $DIR/field-assign-nonsend.rs:45:17 + | +LL | assert_send(agent.handle()); + | ^^^^^^^^^^^^^^ future returned by `handle` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<String>` +note: future is not `Send` as this value is used across an await + --> $DIR/field-assign-nonsend.rs:23:38 + | +LL | let mut info = self.info_result.clone(); + | -------- has type `InfoResult` which is not `Send` +... +LL | let _ = send_element(element).await; + | ^^^^^^ await occurs here, with `mut info` maybe used later +LL | } + | - `mut info` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/field-assign-nonsend.rs:40:19 + | +LL | fn assert_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `assert_send` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/field-assign-nonsend.drop_tracking_mir.stderr b/tests/ui/async-await/field-assign-nonsend.drop_tracking_mir.stderr new file mode 100644 index 000000000..8c9d14d62 --- /dev/null +++ b/tests/ui/async-await/field-assign-nonsend.drop_tracking_mir.stderr @@ -0,0 +1,23 @@ +error: future cannot be sent between threads safely + --> $DIR/field-assign-nonsend.rs:45:17 + | +LL | assert_send(agent.handle()); + | ^^^^^^^^^^^^^^ future returned by `handle` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<String>` +note: future is not `Send` as this value is used across an await + --> $DIR/field-assign-nonsend.rs:23:38 + | +LL | let mut info = self.info_result.clone(); + | -------- has type `InfoResult` which is not `Send` +... +LL | let _ = send_element(element).await; + | ^^^^^^ await occurs here, with `mut info` maybe used later +note: required by a bound in `assert_send` + --> $DIR/field-assign-nonsend.rs:40:19 + | +LL | fn assert_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `assert_send` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/field-assign-nonsend.no_drop_tracking.stderr b/tests/ui/async-await/field-assign-nonsend.no_drop_tracking.stderr new file mode 100644 index 000000000..ac461a671 --- /dev/null +++ b/tests/ui/async-await/field-assign-nonsend.no_drop_tracking.stderr @@ -0,0 +1,25 @@ +error: future cannot be sent between threads safely + --> $DIR/field-assign-nonsend.rs:45:17 + | +LL | assert_send(agent.handle()); + | ^^^^^^^^^^^^^^ future returned by `handle` is not `Send` + | + = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<String>` +note: future is not `Send` as this value is used across an await + --> $DIR/field-assign-nonsend.rs:23:38 + | +LL | let mut info = self.info_result.clone(); + | -------- has type `InfoResult` which is not `Send` +... +LL | let _ = send_element(element).await; + | ^^^^^^ await occurs here, with `mut info` maybe used later +LL | } + | - `mut info` is later dropped here +note: required by a bound in `assert_send` + --> $DIR/field-assign-nonsend.rs:40:19 + | +LL | fn assert_send<T: Send>(_: T) {} + | ^^^^ required by this bound in `assert_send` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/field-assign-nonsend.rs b/tests/ui/async-await/field-assign-nonsend.rs new file mode 100644 index 000000000..3e2228000 --- /dev/null +++ b/tests/ui/async-await/field-assign-nonsend.rs @@ -0,0 +1,47 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir +// Derived from an ICE found in tokio-xmpp during a crater run. +// edition:2021 + +#![allow(dead_code)] + +#[derive(Clone)] +struct InfoResult { + node: Option<std::rc::Rc<String>> +} + +struct Agent { + info_result: InfoResult +} + +impl Agent { + async fn handle(&mut self) { + let mut info = self.info_result.clone(); + info.node = None; + let element = parse_info(info); + let _ = send_element(element).await; + } +} + +struct Element { +} + +async fn send_element(_: Element) {} + +fn parse(_: &[u8]) -> Result<(), ()> { + Ok(()) +} + +fn parse_info(_: InfoResult) -> Element { + Element { } +} + +fn assert_send<T: Send>(_: T) {} + +fn main() { + let agent = Agent { info_result: InfoResult { node: None } }; + // FIXME: It would be nice for this to work. See #94067. + assert_send(agent.handle()); + //~^ cannot be sent between threads safely +} diff --git a/tests/ui/async-await/field-assign.rs b/tests/ui/async-await/field-assign.rs new file mode 100644 index 000000000..dd0e3f11c --- /dev/null +++ b/tests/ui/async-await/field-assign.rs @@ -0,0 +1,46 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir +// Derived from an ICE found in tokio-xmpp during a crater run. +// edition:2021 +// build-pass + +#![allow(dead_code)] + +#[derive(Clone)] +struct InfoResult { + node: Option<String> +} + +struct Agent { + info_result: InfoResult +} + +impl Agent { + async fn handle(&mut self) { + let mut info = self.info_result.clone(); + info.node = Some("bar".into()); + let element = parse_info(info); + let _ = send_element(element).await; + } +} + +struct Element { +} + +async fn send_element(_: Element) {} + +fn parse(_: &[u8]) -> Result<(), ()> { + Ok(()) +} + +fn parse_info(_: InfoResult) -> Element { + Element { } +} + +fn main() { + let mut agent = Agent { + info_result: InfoResult { node: None } + }; + let _ = agent.handle(); +} diff --git a/tests/ui/async-await/future-sizes/async-awaiting-fut.rs b/tests/ui/async-await/future-sizes/async-awaiting-fut.rs new file mode 100644 index 000000000..1816d842d --- /dev/null +++ b/tests/ui/async-await/future-sizes/async-awaiting-fut.rs @@ -0,0 +1,24 @@ +// compile-flags: -Z print-type-sizes --crate-type lib +// edition:2021 +// build-pass +// ignore-pass + +async fn wait() {} + +async fn big_fut(arg: [u8; 1024]) {} + +async fn calls_fut(fut: impl std::future::Future<Output = ()>) { + loop { + wait().await; + if true { + return fut.await; + } else { + wait().await; + } + } +} + +pub async fn test() { + let fut = big_fut([0u8; 1024]); + calls_fut(fut).await; +} diff --git a/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout b/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout new file mode 100644 index 000000000..eaf3e4b61 --- /dev/null +++ b/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout @@ -0,0 +1,72 @@ +print-type-size type: `[async fn body@$DIR/async-awaiting-fut.rs:21:21: 24:2]`: 3078 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Unresumed`: 0 bytes +print-type-size variant `Suspend0`: 3077 bytes +print-type-size local `.__awaitee`: 3077 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Returned`: 0 bytes +print-type-size variant `Panicked`: 0 bytes +print-type-size type: `[async fn body@$DIR/async-awaiting-fut.rs:10:64: 19:2]`: 3077 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Unresumed`: 2051 bytes +print-type-size padding: 1026 bytes +print-type-size upvar `.fut`: 1025 bytes, alignment: 1 bytes +print-type-size variant `Suspend0`: 2052 bytes +print-type-size local `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size local `..generator_field4`: 1 bytes +print-type-size padding: 1 bytes +print-type-size upvar `.fut`: 1025 bytes, alignment: 1 bytes +print-type-size local `.__awaitee`: 1 bytes +print-type-size variant `Suspend1`: 3076 bytes +print-type-size padding: 1024 bytes +print-type-size local `..generator_field4`: 1 bytes, alignment: 1 bytes +print-type-size padding: 1 bytes +print-type-size upvar `.fut`: 1025 bytes, alignment: 1 bytes +print-type-size local `.__awaitee`: 1025 bytes +print-type-size variant `Suspend2`: 2052 bytes +print-type-size local `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size local `..generator_field4`: 1 bytes +print-type-size padding: 1 bytes +print-type-size upvar `.fut`: 1025 bytes, alignment: 1 bytes +print-type-size local `.__awaitee`: 1 bytes +print-type-size variant `Returned`: 2051 bytes +print-type-size padding: 1026 bytes +print-type-size upvar `.fut`: 1025 bytes, alignment: 1 bytes +print-type-size variant `Panicked`: 2051 bytes +print-type-size padding: 1026 bytes +print-type-size upvar `.fut`: 1025 bytes, alignment: 1 bytes +print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/async-awaiting-fut.rs:10:64: 19:2]>`: 3077 bytes, alignment: 1 bytes +print-type-size field `.value`: 3077 bytes +print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/async-awaiting-fut.rs:10:64: 19:2]>`: 3077 bytes, alignment: 1 bytes +print-type-size variant `MaybeUninit`: 3077 bytes +print-type-size field `.uninit`: 0 bytes +print-type-size field `.value`: 3077 bytes +print-type-size type: `[async fn body@$DIR/async-awaiting-fut.rs:8:35: 8:37]`: 1025 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Unresumed`: 1024 bytes +print-type-size upvar `.arg`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Returned`: 1024 bytes +print-type-size upvar `.arg`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Panicked`: 1024 bytes +print-type-size upvar `.arg`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/async-awaiting-fut.rs:8:35: 8:37]>`: 1025 bytes, alignment: 1 bytes +print-type-size field `.value`: 1025 bytes +print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/async-awaiting-fut.rs:8:35: 8:37]>`: 1025 bytes, alignment: 1 bytes +print-type-size variant `MaybeUninit`: 1025 bytes +print-type-size field `.uninit`: 0 bytes +print-type-size field `.value`: 1025 bytes +print-type-size type: `[async fn body@$DIR/async-awaiting-fut.rs:6:17: 6:19]`: 1 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Unresumed`: 0 bytes +print-type-size variant `Returned`: 0 bytes +print-type-size variant `Panicked`: 0 bytes +print-type-size type: `std::mem::ManuallyDrop<bool>`: 1 bytes, alignment: 1 bytes +print-type-size field `.value`: 1 bytes +print-type-size type: `std::mem::MaybeUninit<bool>`: 1 bytes, alignment: 1 bytes +print-type-size variant `MaybeUninit`: 1 bytes +print-type-size field `.uninit`: 0 bytes +print-type-size field `.value`: 1 bytes +print-type-size type: `std::task::Poll<()>`: 1 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Ready`: 0 bytes +print-type-size field `.0`: 0 bytes +print-type-size variant `Pending`: 0 bytes diff --git a/tests/ui/async-await/future-sizes/future-as-arg.rs b/tests/ui/async-await/future-sizes/future-as-arg.rs new file mode 100644 index 000000000..93c69b052 --- /dev/null +++ b/tests/ui/async-await/future-sizes/future-as-arg.rs @@ -0,0 +1,16 @@ +// edition: 2021 +// run-pass + +async fn test(_arg: [u8; 16]) {} + +async fn use_future(fut: impl std::future::Future<Output = ()>) { + fut.await +} + +fn main() { + let actual = std::mem::size_of_val( + &use_future(use_future(use_future(use_future(use_future(test([0; 16]))))))); + // Not using an exact number in case it slightly changes over different commits + let expected = 550; + assert!(actual > expected, "expected: >{expected}, actual: {actual}"); +} diff --git a/tests/ui/async-await/future-sizes/large-arg.rs b/tests/ui/async-await/future-sizes/large-arg.rs new file mode 100644 index 000000000..7e7ff9d8d --- /dev/null +++ b/tests/ui/async-await/future-sizes/large-arg.rs @@ -0,0 +1,18 @@ +// compile-flags: -Z print-type-sizes --crate-type=lib +// edition: 2021 +// build-pass +// ignore-pass + +pub async fn test() { + let _ = a([0u8; 1024]).await; +} + +pub async fn a<T>(t: T) -> T { + b(t).await +} +async fn b<T>(t: T) -> T { + c(t).await +} +async fn c<T>(t: T) -> T { + t +} diff --git a/tests/ui/async-await/future-sizes/large-arg.stdout b/tests/ui/async-await/future-sizes/large-arg.stdout new file mode 100644 index 000000000..91db4b153 --- /dev/null +++ b/tests/ui/async-await/future-sizes/large-arg.stdout @@ -0,0 +1,60 @@ +print-type-size type: `[async fn body@$DIR/large-arg.rs:6:21: 8:2]`: 3076 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Unresumed`: 0 bytes +print-type-size variant `Suspend0`: 3075 bytes +print-type-size local `.__awaitee`: 3075 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Returned`: 0 bytes +print-type-size variant `Panicked`: 0 bytes +print-type-size type: `[async fn body@$DIR/large-arg.rs:10:30: 12:2]`: 3075 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Unresumed`: 1024 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Suspend0`: 3074 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size local `.__awaitee`: 2050 bytes +print-type-size variant `Returned`: 1024 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Panicked`: 1024 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/large-arg.rs:10:30: 12:2]>`: 3075 bytes, alignment: 1 bytes +print-type-size field `.value`: 3075 bytes +print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/large-arg.rs:10:30: 12:2]>`: 3075 bytes, alignment: 1 bytes +print-type-size variant `MaybeUninit`: 3075 bytes +print-type-size field `.uninit`: 0 bytes +print-type-size field `.value`: 3075 bytes +print-type-size type: `[async fn body@$DIR/large-arg.rs:13:26: 15:2]`: 2050 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Unresumed`: 1024 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Suspend0`: 2049 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size local `.__awaitee`: 1025 bytes +print-type-size variant `Returned`: 1024 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Panicked`: 1024 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/large-arg.rs:13:26: 15:2]>`: 2050 bytes, alignment: 1 bytes +print-type-size field `.value`: 2050 bytes +print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/large-arg.rs:13:26: 15:2]>`: 2050 bytes, alignment: 1 bytes +print-type-size variant `MaybeUninit`: 2050 bytes +print-type-size field `.uninit`: 0 bytes +print-type-size field `.value`: 2050 bytes +print-type-size type: `[async fn body@$DIR/large-arg.rs:16:26: 18:2]`: 1025 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Unresumed`: 1024 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Returned`: 1024 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size variant `Panicked`: 1024 bytes +print-type-size upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes +print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/large-arg.rs:16:26: 18:2]>`: 1025 bytes, alignment: 1 bytes +print-type-size field `.value`: 1025 bytes +print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/large-arg.rs:16:26: 18:2]>`: 1025 bytes, alignment: 1 bytes +print-type-size variant `MaybeUninit`: 1025 bytes +print-type-size field `.uninit`: 0 bytes +print-type-size field `.value`: 1025 bytes +print-type-size type: `std::task::Poll<[u8; 1024]>`: 1025 bytes, alignment: 1 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Ready`: 1024 bytes +print-type-size field `.0`: 1024 bytes +print-type-size variant `Pending`: 0 bytes diff --git a/tests/ui/async-await/generator-desc.stderr b/tests/ui/async-await/generator-desc.stderr index 963c6ba57..51ac9d86b 100644 --- a/tests/ui/async-await/generator-desc.stderr +++ b/tests/ui/async-await/generator-desc.stderr @@ -17,22 +17,10 @@ error[E0308]: mismatched types --> $DIR/generator-desc.rs:12:16 | LL | fun(one(), two()); - | --- ^^^^^ expected opaque type, found a different opaque type + | --- ^^^^^ expected future, found a different future | | | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/generator-desc.rs:5:16 - | -LL | async fn one() {} - | ^ checked the `Output` of this `async fn`, expected opaque type -note: while checking the return type of the `async fn` - --> $DIR/generator-desc.rs:6:16 - | -LL | async fn two() {} - | ^ checked the `Output` of this `async fn`, found opaque type - = note: expected opaque type `impl Future<Output = ()>` (opaque type at <$DIR/generator-desc.rs:5:16>) - found opaque type `impl Future<Output = ()>` (opaque type at <$DIR/generator-desc.rs:6:16>) = help: consider `await`ing on both `Future`s = note: distinct uses of `impl Trait` result in different opaque types note: function defined here diff --git a/tests/ui/async-await/in-trait/async-default-fn-overridden.rs b/tests/ui/async-await/in-trait/async-default-fn-overridden.rs new file mode 100644 index 000000000..0fd1a2703 --- /dev/null +++ b/tests/ui/async-await/in-trait/async-default-fn-overridden.rs @@ -0,0 +1,66 @@ +// run-pass +// edition:2021 + +#![feature(async_fn_in_trait)] +//~^ WARN the feature `async_fn_in_trait` is incomplete and may not be safe to use + +use std::future::Future; + +trait AsyncTrait { + async fn default_impl() { + assert!(false); + } + + async fn call_default_impl() { + Self::default_impl().await + } +} + +struct AsyncType; + +impl AsyncTrait for AsyncType { + async fn default_impl() { + // :) + } +} + +async fn async_main() { + // Should not assert false + AsyncType::call_default_impl().await; +} + +// ------------------------------------------------------------------------- // +// Implementation Details Below... + +use std::pin::Pin; +use std::task::*; + +pub fn noop_waker() -> Waker { + let raw = RawWaker::new(std::ptr::null(), &NOOP_WAKER_VTABLE); + + // SAFETY: the contracts for RawWaker and RawWakerVTable are upheld + unsafe { Waker::from_raw(raw) } +} + +const NOOP_WAKER_VTABLE: RawWakerVTable = RawWakerVTable::new(noop_clone, noop, noop, noop); + +unsafe fn noop_clone(_p: *const ()) -> RawWaker { + RawWaker::new(std::ptr::null(), &NOOP_WAKER_VTABLE) +} + +unsafe fn noop(_p: *const ()) {} + +fn main() { + let mut fut = async_main(); + + // Poll loop, just to test the future... + let waker = noop_waker(); + let ctx = &mut Context::from_waker(&waker); + + loop { + match unsafe { Pin::new_unchecked(&mut fut).poll(ctx) } { + Poll::Pending => {} + Poll::Ready(()) => break, + } + } +} diff --git a/tests/ui/async-await/in-trait/async-default-fn-overridden.stderr b/tests/ui/async-await/in-trait/async-default-fn-overridden.stderr new file mode 100644 index 000000000..61a826258 --- /dev/null +++ b/tests/ui/async-await/in-trait/async-default-fn-overridden.stderr @@ -0,0 +1,11 @@ +warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/async-default-fn-overridden.rs:4:12 + | +LL | #![feature(async_fn_in_trait)] + | ^^^^^^^^^^^^^^^^^ + | + = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information + = note: `#[warn(incomplete_features)]` on by default + +warning: 1 warning emitted + diff --git a/tests/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.stderr b/tests/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.stderr index 13e722255..168ef8e9e 100644 --- a/tests/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.stderr +++ b/tests/ui/async-await/in-trait/async-example-desugared-boxed-in-trait.stderr @@ -2,7 +2,7 @@ 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 + | ^^^ expected `Pin<Box<dyn Future<Output = i32>>>`, found future | note: type in trait --> $DIR/async-example-desugared-boxed-in-trait.rs:11:22 diff --git a/tests/ui/async-await/in-trait/dont-project-to-specializable-projection.rs b/tests/ui/async-await/in-trait/dont-project-to-specializable-projection.rs new file mode 100644 index 000000000..afd3db5e0 --- /dev/null +++ b/tests/ui/async-await/in-trait/dont-project-to-specializable-projection.rs @@ -0,0 +1,71 @@ +// edition: 2021 +// known-bug: #108309 + +#![feature(async_fn_in_trait)] +#![feature(min_specialization)] + +struct MyStruct; + +trait MyTrait<T> { + async fn foo(_: T) -> &'static str; +} + +impl<T> MyTrait<T> for MyStruct { + default async fn foo(_: T) -> &'static str { + "default" + } +} + +impl MyTrait<i32> for MyStruct { + async fn foo(_: i32) -> &'static str { + "specialized" + } +} + +async fn async_main() { + assert_eq!(MyStruct::foo(42).await, "specialized"); + assert_eq!(indirection(42).await, "specialized"); +} + +async fn indirection<T>(x: T) -> &'static str { + //explicit type coercion is currently necessary + // because of https://github.com/rust-lang/rust/issues/67918 + <MyStruct as MyTrait<T>>::foo(x).await +} + +// ------------------------------------------------------------------------- // +// Implementation Details Below... + +use std::future::Future; +use std::pin::Pin; +use std::task::*; + +pub fn noop_waker() -> Waker { + let raw = RawWaker::new(std::ptr::null(), &NOOP_WAKER_VTABLE); + + // SAFETY: the contracts for RawWaker and RawWakerVTable are upheld + unsafe { Waker::from_raw(raw) } +} + +const NOOP_WAKER_VTABLE: RawWakerVTable = RawWakerVTable::new(noop_clone, noop, noop, noop); + +unsafe fn noop_clone(_p: *const ()) -> RawWaker { + RawWaker::new(std::ptr::null(), &NOOP_WAKER_VTABLE) +} + +unsafe fn noop(_p: *const ()) {} + +fn main() { + let mut fut = async_main(); + + // Poll loop, just to test the future... + let waker = noop_waker(); + let ctx = &mut Context::from_waker(&waker); + + loop { + match unsafe { Pin::new_unchecked(&mut fut).poll(ctx) } { + Poll::Pending => {} + Poll::Ready(()) => break, + } + } +} diff --git a/tests/ui/async-await/in-trait/dont-project-to-specializable-projection.stderr b/tests/ui/async-await/in-trait/dont-project-to-specializable-projection.stderr new file mode 100644 index 000000000..f71fd9980 --- /dev/null +++ b/tests/ui/async-await/in-trait/dont-project-to-specializable-projection.stderr @@ -0,0 +1,19 @@ +warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/dont-project-to-specializable-projection.rs:4:12 + | +LL | #![feature(async_fn_in_trait)] + | ^^^^^^^^^^^^^^^^^ + | + = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information + = note: `#[warn(incomplete_features)]` on by default + +error: async associated function in trait cannot be specialized + --> $DIR/dont-project-to-specializable-projection.rs:14:5 + | +LL | default async fn foo(_: T) -> &'static str { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: specialization behaves in inconsistent and surprising ways with `#![feature(async_fn_in_trait)]`, and for now is disallowed + +error: aborting due to previous error; 1 warning emitted + diff --git a/tests/ui/async-await/in-trait/fn-not-async-err2.rs b/tests/ui/async-await/in-trait/fn-not-async-err2.rs index 2c4ed5535..78017429f 100644 --- a/tests/ui/async-await/in-trait/fn-not-async-err2.rs +++ b/tests/ui/async-await/in-trait/fn-not-async-err2.rs @@ -11,7 +11,7 @@ trait MyTrait { 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] + //~^ ERROR `impl Trait` only allowed in function and inherent method return types, not in `impl` method return types async { *self } } } diff --git a/tests/ui/async-await/in-trait/fn-not-async-err2.stderr b/tests/ui/async-await/in-trait/fn-not-async-err2.stderr index f591f1847..37d9669c0 100644 --- a/tests/ui/async-await/in-trait/fn-not-async-err2.stderr +++ b/tests/ui/async-await/in-trait/fn-not-async-err2.stderr @@ -1,4 +1,4 @@ -error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `impl` method return +error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in `impl` method return types --> $DIR/fn-not-async-err2.rs:13:22 | LL | fn foo(&self) -> impl Future<Output = i32> { diff --git a/tests/ui/async-await/in-trait/return-type-suggestion.stderr b/tests/ui/async-await/in-trait/return-type-suggestion.stderr index 5a9b15e54..b8d83d0f2 100644 --- a/tests/ui/async-await/in-trait/return-type-suggestion.stderr +++ b/tests/ui/async-await/in-trait/return-type-suggestion.stderr @@ -13,7 +13,7 @@ error[E0308]: mismatched types LL | Ok(()) | ^^^^^^- help: consider using a semicolon here: `;` | | - | expected `()`, found enum `Result` + | expected `()`, found `Result<(), _>` | = note: expected unit type `()` found enum `Result<(), _>` diff --git a/tests/ui/async-await/issue-61076.rs b/tests/ui/async-await/issue-61076.rs index 750fad839..cf6e5b4e4 100644 --- a/tests/ui/async-await/issue-61076.rs +++ b/tests/ui/async-await/issue-61076.rs @@ -54,9 +54,6 @@ async fn struct_() -> Struct { } async fn tuple() -> Tuple { - //~^ NOTE checked the `Output` of this `async fn`, expected opaque type - //~| NOTE while checking the return type of the `async fn` - //~| NOTE in this expansion of desugaring of `async` block or function Tuple(1i32) } @@ -89,7 +86,7 @@ async fn match_() { match tuple() { //~ HELP consider `await`ing on the `Future` //~^ NOTE this expression has type `impl Future<Output = Tuple>` Tuple(_) => {} //~ ERROR mismatched types - //~^ NOTE expected opaque type, found struct `Tuple` + //~^ NOTE expected future, found `Tuple` //~| NOTE expected opaque type `impl Future<Output = Tuple>` } } diff --git a/tests/ui/async-await/issue-61076.stderr b/tests/ui/async-await/issue-61076.stderr index 33839ea59..44de28298 100644 --- a/tests/ui/async-await/issue-61076.stderr +++ b/tests/ui/async-await/issue-61076.stderr @@ -11,7 +11,7 @@ LL | foo().await?; | ++++++ error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/issue-61076.rs:65:5 + --> $DIR/issue-61076.rs:62:5 | LL | t?; | ^^ the `?` operator cannot be applied to type `T` @@ -23,7 +23,7 @@ LL | t.await?; | ++++++ error[E0609]: no field `0` on type `impl Future<Output = Tuple>` - --> $DIR/issue-61076.rs:74:26 + --> $DIR/issue-61076.rs:71:26 | LL | let _: i32 = tuple().0; | ^ field not available in `impl Future`, but it is available in its `Output` @@ -34,7 +34,7 @@ LL | let _: i32 = tuple().await.0; | ++++++ error[E0609]: no field `a` on type `impl Future<Output = Struct>` - --> $DIR/issue-61076.rs:78:28 + --> $DIR/issue-61076.rs:75:28 | LL | let _: i32 = struct_().a; | ^ field not available in `impl Future`, but it is available in its `Output` @@ -45,7 +45,7 @@ LL | let _: i32 = struct_().await.a; | ++++++ error[E0599]: no method named `method` found for opaque type `impl Future<Output = Struct>` in the current scope - --> $DIR/issue-61076.rs:82:15 + --> $DIR/issue-61076.rs:79:15 | LL | struct_().method(); | ^^^^^^ method not found in `impl Future<Output = Struct>` @@ -56,19 +56,14 @@ LL | struct_().await.method(); | ++++++ error[E0308]: mismatched types - --> $DIR/issue-61076.rs:91:9 + --> $DIR/issue-61076.rs:88:9 | LL | match tuple() { | ------- this expression has type `impl Future<Output = Tuple>` LL | LL | Tuple(_) => {} - | ^^^^^^^^ expected opaque type, found struct `Tuple` + | ^^^^^^^^ expected future, found `Tuple` | -note: while checking the return type of the `async fn` - --> $DIR/issue-61076.rs:56:21 - | -LL | async fn tuple() -> Tuple { - | ^^^^^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future<Output = Tuple>` found struct `Tuple` help: consider `await`ing on the `Future` diff --git a/tests/ui/async-await/issue-64130-1-sync.drop_tracking.stderr b/tests/ui/async-await/issue-64130-1-sync.drop_tracking.stderr new file mode 100644 index 000000000..c4c7f26c7 --- /dev/null +++ b/tests/ui/async-await/issue-64130-1-sync.drop_tracking.stderr @@ -0,0 +1,25 @@ +error: future cannot be shared between threads safely + --> $DIR/issue-64130-1-sync.rs:25:13 + | +LL | is_sync(bar()); + | ^^^^^ future returned by `bar` is not `Sync` + | + = help: within `impl Future<Output = ()>`, the trait `Sync` is not implemented for `Foo` +note: future is not `Sync` as this value is used across an await + --> $DIR/issue-64130-1-sync.rs:18:10 + | +LL | let x = Foo; + | - has type `Foo` which is not `Sync` +LL | baz().await; + | ^^^^^^ await occurs here, with `x` maybe used later +LL | drop(x); +LL | } + | - `x` is later dropped here +note: required by a bound in `is_sync` + --> $DIR/issue-64130-1-sync.rs:14:15 + | +LL | fn is_sync<T: Sync>(t: T) { } + | ^^^^ required by this bound in `is_sync` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-64130-1-sync.drop_tracking_mir.stderr b/tests/ui/async-await/issue-64130-1-sync.drop_tracking_mir.stderr new file mode 100644 index 000000000..6f43b568a --- /dev/null +++ b/tests/ui/async-await/issue-64130-1-sync.drop_tracking_mir.stderr @@ -0,0 +1,22 @@ +error: future cannot be shared between threads safely + --> $DIR/issue-64130-1-sync.rs:25:13 + | +LL | is_sync(bar()); + | ^^^^^ future returned by `bar` is not `Sync` + | + = help: within `impl Future<Output = ()>`, the trait `Sync` is not implemented for `Foo` +note: future is not `Sync` as this value is used across an await + --> $DIR/issue-64130-1-sync.rs:18:10 + | +LL | let x = Foo; + | - has type `Foo` which is not `Sync` +LL | baz().await; + | ^^^^^^ await occurs here, with `x` maybe used later +note: required by a bound in `is_sync` + --> $DIR/issue-64130-1-sync.rs:14:15 + | +LL | fn is_sync<T: Sync>(t: T) { } + | ^^^^ required by this bound in `is_sync` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-64130-1-sync.no_drop_tracking.stderr b/tests/ui/async-await/issue-64130-1-sync.no_drop_tracking.stderr new file mode 100644 index 000000000..c4c7f26c7 --- /dev/null +++ b/tests/ui/async-await/issue-64130-1-sync.no_drop_tracking.stderr @@ -0,0 +1,25 @@ +error: future cannot be shared between threads safely + --> $DIR/issue-64130-1-sync.rs:25:13 + | +LL | is_sync(bar()); + | ^^^^^ future returned by `bar` is not `Sync` + | + = help: within `impl Future<Output = ()>`, the trait `Sync` is not implemented for `Foo` +note: future is not `Sync` as this value is used across an await + --> $DIR/issue-64130-1-sync.rs:18:10 + | +LL | let x = Foo; + | - has type `Foo` which is not `Sync` +LL | baz().await; + | ^^^^^^ await occurs here, with `x` maybe used later +LL | drop(x); +LL | } + | - `x` is later dropped here +note: required by a bound in `is_sync` + --> $DIR/issue-64130-1-sync.rs:14:15 + | +LL | fn is_sync<T: Sync>(t: T) { } + | ^^^^ required by this bound in `is_sync` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-64130-1-sync.rs b/tests/ui/async-await/issue-64130-1-sync.rs index 1714cec52..44646e0e5 100644 --- a/tests/ui/async-await/issue-64130-1-sync.rs +++ b/tests/ui/async-await/issue-64130-1-sync.rs @@ -1,3 +1,6 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir #![feature(negative_impls)] // edition:2018 @@ -13,6 +16,7 @@ fn is_sync<T: Sync>(t: T) { } async fn bar() { let x = Foo; baz().await; + drop(x); } async fn baz() { } diff --git a/tests/ui/async-await/issue-64130-1-sync.stderr b/tests/ui/async-await/issue-64130-1-sync.stderr index e205de473..8d5169a63 100644 --- a/tests/ui/async-await/issue-64130-1-sync.stderr +++ b/tests/ui/async-await/issue-64130-1-sync.stderr @@ -1,12 +1,12 @@ error: future cannot be shared between threads safely - --> $DIR/issue-64130-1-sync.rs:21:13 + --> $DIR/issue-64130-1-sync.rs:24:13 | LL | is_sync(bar()); | ^^^^^ future returned by `bar` is not `Sync` | = help: within `impl Future<Output = ()>`, the trait `Sync` is not implemented for `Foo` note: future is not `Sync` as this value is used across an await - --> $DIR/issue-64130-1-sync.rs:15:10 + --> $DIR/issue-64130-1-sync.rs:18:10 | LL | let x = Foo; | - has type `Foo` which is not `Sync` @@ -15,7 +15,7 @@ LL | baz().await; LL | } | - `x` is later dropped here note: required by a bound in `is_sync` - --> $DIR/issue-64130-1-sync.rs:11:15 + --> $DIR/issue-64130-1-sync.rs:14:15 | LL | fn is_sync<T: Sync>(t: T) { } | ^^^^ required by this bound in `is_sync` diff --git a/tests/ui/async-await/issue-64130-2-send.drop_tracking.stderr b/tests/ui/async-await/issue-64130-2-send.drop_tracking.stderr new file mode 100644 index 000000000..b6a73c2a5 --- /dev/null +++ b/tests/ui/async-await/issue-64130-2-send.drop_tracking.stderr @@ -0,0 +1,28 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-64130-2-send.rs:24:13 + | +LL | is_send(bar()); + | ^^^^^ future returned by `bar` is not `Send` + | + = note: the trait bound `Unique<Foo>: Send` is not satisfied +note: future is not `Send` as this value is used across an await + --> $DIR/issue-64130-2-send.rs:18:10 + | +LL | let x = Box::new(Foo); + | - has type `Box<Foo>` which is not `Send` +LL | baz().await; + | ^^^^^^ await occurs here, with `x` maybe used later +LL | } + | - `x` is later dropped here +note: required by a bound in `is_send` + --> $DIR/issue-64130-2-send.rs:14:15 + | +LL | fn is_send<T: Send>(t: T) { } + | ^^^^ required by this bound in `is_send` +help: consider borrowing here + | +LL | is_send(&bar()); + | + + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-64130-2-send.drop_tracking_mir.stderr b/tests/ui/async-await/issue-64130-2-send.drop_tracking_mir.stderr new file mode 100644 index 000000000..560560f60 --- /dev/null +++ b/tests/ui/async-await/issue-64130-2-send.drop_tracking_mir.stderr @@ -0,0 +1,26 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-64130-2-send.rs:24:13 + | +LL | is_send(bar()); + | ^^^^^ future returned by `bar` is not `Send` + | + = note: the trait bound `Unique<Foo>: Send` is not satisfied +note: future is not `Send` as this value is used across an await + --> $DIR/issue-64130-2-send.rs:18:10 + | +LL | let x = Box::new(Foo); + | - has type `Box<Foo>` which is not `Send` +LL | baz().await; + | ^^^^^^ await occurs here, with `x` maybe used later +note: required by a bound in `is_send` + --> $DIR/issue-64130-2-send.rs:14:15 + | +LL | fn is_send<T: Send>(t: T) { } + | ^^^^ required by this bound in `is_send` +help: consider borrowing here + | +LL | is_send(&bar()); + | + + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-64130-2-send.no_drop_tracking.stderr b/tests/ui/async-await/issue-64130-2-send.no_drop_tracking.stderr new file mode 100644 index 000000000..b6a73c2a5 --- /dev/null +++ b/tests/ui/async-await/issue-64130-2-send.no_drop_tracking.stderr @@ -0,0 +1,28 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-64130-2-send.rs:24:13 + | +LL | is_send(bar()); + | ^^^^^ future returned by `bar` is not `Send` + | + = note: the trait bound `Unique<Foo>: Send` is not satisfied +note: future is not `Send` as this value is used across an await + --> $DIR/issue-64130-2-send.rs:18:10 + | +LL | let x = Box::new(Foo); + | - has type `Box<Foo>` which is not `Send` +LL | baz().await; + | ^^^^^^ await occurs here, with `x` maybe used later +LL | } + | - `x` is later dropped here +note: required by a bound in `is_send` + --> $DIR/issue-64130-2-send.rs:14:15 + | +LL | fn is_send<T: Send>(t: T) { } + | ^^^^ required by this bound in `is_send` +help: consider borrowing here + | +LL | is_send(&bar()); + | + + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-64130-2-send.rs b/tests/ui/async-await/issue-64130-2-send.rs index 7a6e5952c..d6d855bac 100644 --- a/tests/ui/async-await/issue-64130-2-send.rs +++ b/tests/ui/async-await/issue-64130-2-send.rs @@ -1,3 +1,6 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir #![feature(negative_impls)] // edition:2018 @@ -11,7 +14,7 @@ impl !Send for Foo {} fn is_send<T: Send>(t: T) { } async fn bar() { - let x = Foo; + let x = Box::new(Foo); baz().await; } diff --git a/tests/ui/async-await/issue-64130-2-send.stderr b/tests/ui/async-await/issue-64130-2-send.stderr index 2225000e2..f6505cad6 100644 --- a/tests/ui/async-await/issue-64130-2-send.stderr +++ b/tests/ui/async-await/issue-64130-2-send.stderr @@ -1,12 +1,12 @@ error: future cannot be sent between threads safely - --> $DIR/issue-64130-2-send.rs:21:13 + --> $DIR/issue-64130-2-send.rs:24:13 | LL | is_send(bar()); | ^^^^^ future returned by `bar` is not `Send` | = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Foo` note: future is not `Send` as this value is used across an await - --> $DIR/issue-64130-2-send.rs:15:10 + --> $DIR/issue-64130-2-send.rs:18:10 | LL | let x = Foo; | - has type `Foo` which is not `Send` @@ -15,7 +15,7 @@ LL | baz().await; LL | } | - `x` is later dropped here note: required by a bound in `is_send` - --> $DIR/issue-64130-2-send.rs:11:15 + --> $DIR/issue-64130-2-send.rs:14:15 | LL | fn is_send<T: Send>(t: T) { } | ^^^^ required by this bound in `is_send` diff --git a/tests/ui/async-await/issue-64130-3-other.drop_tracking.stderr b/tests/ui/async-await/issue-64130-3-other.drop_tracking.stderr new file mode 100644 index 000000000..d65aae8cc --- /dev/null +++ b/tests/ui/async-await/issue-64130-3-other.drop_tracking.stderr @@ -0,0 +1,27 @@ +error[E0277]: the trait bound `Foo: Qux` is not satisfied in `impl Future<Output = ()>` + --> $DIR/issue-64130-3-other.rs:27:12 + | +LL | async fn bar() { + | - within this `impl Future<Output = ()>` +... +LL | is_qux(bar()); + | ^^^^^ within `impl Future<Output = ()>`, the trait `Qux` is not implemented for `Foo` + | +note: future does not implement `Qux` as this value is used across an await + --> $DIR/issue-64130-3-other.rs:21:10 + | +LL | let x = Box::new(Foo); + | - has type `Box<Foo>` which does not implement `Qux` +LL | baz().await; + | ^^^^^^ await occurs here, with `x` maybe used later +LL | } + | - `x` is later dropped here +note: required by a bound in `is_qux` + --> $DIR/issue-64130-3-other.rs:17:14 + | +LL | fn is_qux<T: Qux>(t: T) {} + | ^^^ required by this bound in `is_qux` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/async-await/issue-64130-3-other.drop_tracking_mir.stderr b/tests/ui/async-await/issue-64130-3-other.drop_tracking_mir.stderr new file mode 100644 index 000000000..8fed69d9d --- /dev/null +++ b/tests/ui/async-await/issue-64130-3-other.drop_tracking_mir.stderr @@ -0,0 +1,25 @@ +error[E0277]: the trait bound `Foo: Qux` is not satisfied in `impl Future<Output = ()>` + --> $DIR/issue-64130-3-other.rs:27:12 + | +LL | async fn bar() { + | - within this `impl Future<Output = ()>` +... +LL | is_qux(bar()); + | ^^^^^ within `impl Future<Output = ()>`, the trait `Qux` is not implemented for `Foo` + | +note: future does not implement `Qux` as this value is used across an await + --> $DIR/issue-64130-3-other.rs:21:10 + | +LL | let x = Box::new(Foo); + | - has type `Box<Foo>` which does not implement `Qux` +LL | baz().await; + | ^^^^^^ await occurs here, with `x` maybe used later +note: required by a bound in `is_qux` + --> $DIR/issue-64130-3-other.rs:17:14 + | +LL | fn is_qux<T: Qux>(t: T) {} + | ^^^ required by this bound in `is_qux` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/async-await/issue-64130-3-other.no_drop_tracking.stderr b/tests/ui/async-await/issue-64130-3-other.no_drop_tracking.stderr new file mode 100644 index 000000000..d65aae8cc --- /dev/null +++ b/tests/ui/async-await/issue-64130-3-other.no_drop_tracking.stderr @@ -0,0 +1,27 @@ +error[E0277]: the trait bound `Foo: Qux` is not satisfied in `impl Future<Output = ()>` + --> $DIR/issue-64130-3-other.rs:27:12 + | +LL | async fn bar() { + | - within this `impl Future<Output = ()>` +... +LL | is_qux(bar()); + | ^^^^^ within `impl Future<Output = ()>`, the trait `Qux` is not implemented for `Foo` + | +note: future does not implement `Qux` as this value is used across an await + --> $DIR/issue-64130-3-other.rs:21:10 + | +LL | let x = Box::new(Foo); + | - has type `Box<Foo>` which does not implement `Qux` +LL | baz().await; + | ^^^^^^ await occurs here, with `x` maybe used later +LL | } + | - `x` is later dropped here +note: required by a bound in `is_qux` + --> $DIR/issue-64130-3-other.rs:17:14 + | +LL | fn is_qux<T: Qux>(t: T) {} + | ^^^ required by this bound in `is_qux` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/async-await/issue-64130-3-other.rs b/tests/ui/async-await/issue-64130-3-other.rs index 630fb2c41..92d3b7c81 100644 --- a/tests/ui/async-await/issue-64130-3-other.rs +++ b/tests/ui/async-await/issue-64130-3-other.rs @@ -1,3 +1,6 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir #![feature(auto_traits)] #![feature(negative_impls)] // edition:2018 @@ -14,7 +17,7 @@ impl !Qux for Foo {} fn is_qux<T: Qux>(t: T) {} async fn bar() { - let x = Foo; + let x = Box::new(Foo); baz().await; } diff --git a/tests/ui/async-await/issue-64130-3-other.stderr b/tests/ui/async-await/issue-64130-3-other.stderr index 17867a6a3..cb36a3811 100644 --- a/tests/ui/async-await/issue-64130-3-other.stderr +++ b/tests/ui/async-await/issue-64130-3-other.stderr @@ -1,5 +1,5 @@ error[E0277]: the trait bound `Foo: Qux` is not satisfied in `impl Future<Output = ()>` - --> $DIR/issue-64130-3-other.rs:24:12 + --> $DIR/issue-64130-3-other.rs:27:12 | LL | async fn bar() { | - within this `impl Future<Output = ()>` @@ -8,7 +8,7 @@ LL | is_qux(bar()); | ^^^^^ within `impl Future<Output = ()>`, the trait `Qux` is not implemented for `Foo` | note: future does not implement `Qux` as this value is used across an await - --> $DIR/issue-64130-3-other.rs:18:10 + --> $DIR/issue-64130-3-other.rs:21:10 | LL | let x = Foo; | - has type `Foo` which does not implement `Qux` @@ -17,7 +17,7 @@ LL | baz().await; LL | } | - `x` is later dropped here note: required by a bound in `is_qux` - --> $DIR/issue-64130-3-other.rs:14:14 + --> $DIR/issue-64130-3-other.rs:17:14 | LL | fn is_qux<T: Qux>(t: T) {} | ^^^ required by this bound in `is_qux` diff --git a/tests/ui/async-await/issue-64130-4-async-move.drop-tracking.stderr b/tests/ui/async-await/issue-64130-4-async-move.drop-tracking.stderr index f609e3636..884619f4d 100644 --- a/tests/ui/async-await/issue-64130-4-async-move.drop-tracking.stderr +++ b/tests/ui/async-await/issue-64130-4-async-move.drop-tracking.stderr @@ -1,12 +1,12 @@ error: future cannot be sent between threads safely - --> $DIR/issue-64130-4-async-move.rs:19:17 + --> $DIR/issue-64130-4-async-move.rs:20:17 | LL | pub fn foo() -> impl Future + Send { | ^^^^^^^^^^^^^^^^^^ future created by async block is not `Send` | = help: the trait `Sync` is not implemented for `(dyn Any + Send + 'static)` note: future is not `Send` as this value is used across an await - --> $DIR/issue-64130-4-async-move.rs:25:31 + --> $DIR/issue-64130-4-async-move.rs:27:31 | LL | match client.status() { | ------ has type `&Client` which is not `Send` @@ -17,7 +17,7 @@ LL | let _x = get().await; LL | } | - `client` is later dropped here help: consider moving this into a `let` binding to create a shorter lived borrow - --> $DIR/issue-64130-4-async-move.rs:23:15 + --> $DIR/issue-64130-4-async-move.rs:25:15 | LL | match client.status() { | ^^^^^^^^^^^^^^^ diff --git a/tests/ui/async-await/issue-64130-4-async-move.no_drop_tracking.stderr b/tests/ui/async-await/issue-64130-4-async-move.no_drop_tracking.stderr index f609e3636..0bc7cb2f2 100644 --- a/tests/ui/async-await/issue-64130-4-async-move.no_drop_tracking.stderr +++ b/tests/ui/async-await/issue-64130-4-async-move.no_drop_tracking.stderr @@ -1,12 +1,12 @@ error: future cannot be sent between threads safely - --> $DIR/issue-64130-4-async-move.rs:19:17 + --> $DIR/issue-64130-4-async-move.rs:21:17 | LL | pub fn foo() -> impl Future + Send { | ^^^^^^^^^^^^^^^^^^ future created by async block is not `Send` | = help: the trait `Sync` is not implemented for `(dyn Any + Send + 'static)` note: future is not `Send` as this value is used across an await - --> $DIR/issue-64130-4-async-move.rs:25:31 + --> $DIR/issue-64130-4-async-move.rs:27:31 | LL | match client.status() { | ------ has type `&Client` which is not `Send` @@ -17,7 +17,7 @@ LL | let _x = get().await; LL | } | - `client` is later dropped here help: consider moving this into a `let` binding to create a shorter lived borrow - --> $DIR/issue-64130-4-async-move.rs:23:15 + --> $DIR/issue-64130-4-async-move.rs:25:15 | LL | match client.status() { | ^^^^^^^^^^^^^^^ diff --git a/tests/ui/async-await/issue-64130-4-async-move.rs b/tests/ui/async-await/issue-64130-4-async-move.rs index a38428fc0..bcb297aaa 100644 --- a/tests/ui/async-await/issue-64130-4-async-move.rs +++ b/tests/ui/async-await/issue-64130-4-async-move.rs @@ -1,8 +1,10 @@ // edition:2018 -// revisions: no_drop_tracking drop_tracking +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir +// [drop_tracking_mir] check-pass // [drop_tracking] check-pass -// [drop_tracking] compile-flags: -Zdrop-tracking=yes -// [no_drop_tracking] compile-flags: -Zdrop-tracking=no + use std::any::Any; use std::future::Future; diff --git a/tests/ui/async-await/issue-67252-unnamed-future.drop_tracking.stderr b/tests/ui/async-await/issue-67252-unnamed-future.drop_tracking.stderr new file mode 100644 index 000000000..fc8bcc8ae --- /dev/null +++ b/tests/ui/async-await/issue-67252-unnamed-future.drop_tracking.stderr @@ -0,0 +1,30 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-67252-unnamed-future.rs:21:11 + | +LL | spawn(async { + | ___________^ +LL | | let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send` +LL | | AFuture.await; +LL | | drop(a); +LL | | }); + | |_____^ future created by async block is not `Send` + | + = help: within `[async block@$DIR/issue-67252-unnamed-future.rs:21:11: 25:6]`, the trait `Send` is not implemented for `*mut ()` +note: future is not `Send` as this value is used across an await + --> $DIR/issue-67252-unnamed-future.rs:23:16 + | +LL | let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send` + | - has type `*mut ()` which is not `Send` +LL | AFuture.await; + | ^^^^^^ await occurs here, with `a` maybe used later +LL | drop(a); +LL | }); + | - `a` is later dropped here +note: required by a bound in `spawn` + --> $DIR/issue-67252-unnamed-future.rs:9:13 + | +LL | fn spawn<T: Send>(_: T) {} + | ^^^^ required by this bound in `spawn` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-67252-unnamed-future.drop_tracking_mir.stderr b/tests/ui/async-await/issue-67252-unnamed-future.drop_tracking_mir.stderr new file mode 100644 index 000000000..a3ef7add1 --- /dev/null +++ b/tests/ui/async-await/issue-67252-unnamed-future.drop_tracking_mir.stderr @@ -0,0 +1,22 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-67252-unnamed-future.rs:21:5 + | +LL | spawn(async { + | ^^^^^ future created by async block is not `Send` + | + = help: within `[async block@$DIR/issue-67252-unnamed-future.rs:21:11: 25:6]`, the trait `Send` is not implemented for `*mut ()` +note: future is not `Send` as this value is used across an await + --> $DIR/issue-67252-unnamed-future.rs:23:16 + | +LL | let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send` + | - has type `*mut ()` which is not `Send` +LL | AFuture.await; + | ^^^^^^ await occurs here, with `a` maybe used later +note: required by a bound in `spawn` + --> $DIR/issue-67252-unnamed-future.rs:9:13 + | +LL | fn spawn<T: Send>(_: T) {} + | ^^^^ required by this bound in `spawn` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-67252-unnamed-future.no_drop_tracking.stderr b/tests/ui/async-await/issue-67252-unnamed-future.no_drop_tracking.stderr new file mode 100644 index 000000000..fc8bcc8ae --- /dev/null +++ b/tests/ui/async-await/issue-67252-unnamed-future.no_drop_tracking.stderr @@ -0,0 +1,30 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-67252-unnamed-future.rs:21:11 + | +LL | spawn(async { + | ___________^ +LL | | let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send` +LL | | AFuture.await; +LL | | drop(a); +LL | | }); + | |_____^ future created by async block is not `Send` + | + = help: within `[async block@$DIR/issue-67252-unnamed-future.rs:21:11: 25:6]`, the trait `Send` is not implemented for `*mut ()` +note: future is not `Send` as this value is used across an await + --> $DIR/issue-67252-unnamed-future.rs:23:16 + | +LL | let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send` + | - has type `*mut ()` which is not `Send` +LL | AFuture.await; + | ^^^^^^ await occurs here, with `a` maybe used later +LL | drop(a); +LL | }); + | - `a` is later dropped here +note: required by a bound in `spawn` + --> $DIR/issue-67252-unnamed-future.rs:9:13 + | +LL | fn spawn<T: Send>(_: T) {} + | ^^^^ required by this bound in `spawn` + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-67252-unnamed-future.rs b/tests/ui/async-await/issue-67252-unnamed-future.rs index 1a7ff6133..bb9ad77ce 100644 --- a/tests/ui/async-await/issue-67252-unnamed-future.rs +++ b/tests/ui/async-await/issue-67252-unnamed-future.rs @@ -1,3 +1,6 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // edition:2018 use std::future::Future; use std::pin::Pin; @@ -16,8 +19,9 @@ impl Future for AFuture{ async fn foo() { spawn(async { //~ ERROR future cannot be sent between threads safely - let _a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send` + let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send` AFuture.await; + drop(a); }); } diff --git a/tests/ui/async-await/issue-67252-unnamed-future.stderr b/tests/ui/async-await/issue-67252-unnamed-future.stderr deleted file mode 100644 index fcba4410b..000000000 --- a/tests/ui/async-await/issue-67252-unnamed-future.stderr +++ /dev/null @@ -1,28 +0,0 @@ -error: future cannot be sent between threads safely - --> $DIR/issue-67252-unnamed-future.rs:18:11 - | -LL | spawn(async { - | ___________^ -LL | | let _a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send` -LL | | AFuture.await; -LL | | }); - | |_____^ future created by async block is not `Send` - | - = help: within `[async block@$DIR/issue-67252-unnamed-future.rs:18:11: 21:6]`, the trait `Send` is not implemented for `*mut ()` -note: future is not `Send` as this value is used across an await - --> $DIR/issue-67252-unnamed-future.rs:20:16 - | -LL | let _a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send` - | -- has type `*mut ()` which is not `Send` -LL | AFuture.await; - | ^^^^^^ await occurs here, with `_a` maybe used later -LL | }); - | - `_a` is later dropped here -note: required by a bound in `spawn` - --> $DIR/issue-67252-unnamed-future.rs:6:13 - | -LL | fn spawn<T: Send>(_: T) {} - | ^^^^ required by this bound in `spawn` - -error: aborting due to previous error - diff --git a/tests/ui/async-await/issue-68112.drop_tracking.stderr b/tests/ui/async-await/issue-68112.drop_tracking.stderr index f2802698f..bd648de30 100644 --- a/tests/ui/async-await/issue-68112.drop_tracking.stderr +++ b/tests/ui/async-await/issue-68112.drop_tracking.stderr @@ -5,6 +5,7 @@ LL | require_send(send_fut); | ^^^^^^^^ future created by async block is not `Send` | = help: the trait `Sync` is not implemented for `RefCell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead note: future is not `Send` as it awaits another future which is not `Send` --> $DIR/issue-68112.rs:34:17 | @@ -23,6 +24,7 @@ LL | require_send(send_fut); | ^^^^^^^^ future created by async block is not `Send` | = help: the trait `Sync` is not implemented for `RefCell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead note: future is not `Send` as it awaits another future which is not `Send` --> $DIR/issue-68112.rs:43:17 | @@ -43,6 +45,7 @@ LL | require_send(send_fut); | required by a bound introduced by this call | = help: the trait `Sync` is not implemented for `RefCell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead = note: required for `Arc<RefCell<i32>>` to implement `Send` note: required because it's used within this `async fn` body --> $DIR/issue-68112.rs:50:31 diff --git a/tests/ui/async-await/issue-68112.drop_tracking_mir.stderr b/tests/ui/async-await/issue-68112.drop_tracking_mir.stderr new file mode 100644 index 000000000..7a9242cba --- /dev/null +++ b/tests/ui/async-await/issue-68112.drop_tracking_mir.stderr @@ -0,0 +1,80 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-68112.rs:37:5 + | +LL | require_send(send_fut); + | ^^^^^^^^^^^^ future created by async block is not `Send` + | + = help: the trait `Sync` is not implemented for `RefCell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead +note: future is not `Send` as it awaits another future which is not `Send` + --> $DIR/issue-68112.rs:34:17 + | +LL | let _ = non_send_fut.await; + | ^^^^^^^^^^^^ await occurs here on type `impl Future<Output = Arc<RefCell<i32>>>`, which is not `Send` +note: required by a bound in `require_send` + --> $DIR/issue-68112.rs:14:25 + | +LL | fn require_send(_: impl Send) {} + | ^^^^ required by this bound in `require_send` + +error: future cannot be sent between threads safely + --> $DIR/issue-68112.rs:46:5 + | +LL | require_send(send_fut); + | ^^^^^^^^^^^^ future created by async block is not `Send` + | + = help: the trait `Sync` is not implemented for `RefCell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead +note: future is not `Send` as it awaits another future which is not `Send` + --> $DIR/issue-68112.rs:43:17 + | +LL | let _ = make_non_send_future1().await; + | ^^^^^^^^^^^^^^^^^^^^^^^ await occurs here on type `impl Future<Output = Arc<RefCell<i32>>>`, which is not `Send` +note: required by a bound in `require_send` + --> $DIR/issue-68112.rs:14:25 + | +LL | fn require_send(_: impl Send) {} + | ^^^^ required by this bound in `require_send` + +error[E0277]: `RefCell<i32>` cannot be shared between threads safely + --> $DIR/issue-68112.rs:65:5 + | +LL | require_send(send_fut); + | ^^^^^^^^^^^^ `RefCell<i32>` cannot be shared between threads safely + | + = help: the trait `Sync` is not implemented for `RefCell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead + = note: required for `Arc<RefCell<i32>>` to implement `Send` +note: required because it's used within this `async fn` body + --> $DIR/issue-68112.rs:50:31 + | +LL | async fn ready2<T>(t: T) -> T { + | _______________________________^ +LL | | t +LL | | } + | |_^ +note: required because it appears within the type `impl Future<Output = Arc<RefCell<i32>>>` + --> $DIR/issue-68112.rs:53:31 + | +LL | fn make_non_send_future2() -> impl Future<Output = Arc<RefCell<i32>>> { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + = note: required because it captures the following types: `impl Future<Output = Arc<RefCell<i32>>>`, `Ready<i32>` +note: required because it's used within this `async` block + --> $DIR/issue-68112.rs:60:20 + | +LL | let send_fut = async { + | ____________________^ +LL | | let non_send_fut = make_non_send_future2(); +LL | | let _ = non_send_fut.await; +LL | | ready(0).await; +LL | | }; + | |_____^ +note: required by a bound in `require_send` + --> $DIR/issue-68112.rs:14:25 + | +LL | fn require_send(_: impl Send) {} + | ^^^^ required by this bound in `require_send` + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/async-await/issue-68112.no_drop_tracking.stderr b/tests/ui/async-await/issue-68112.no_drop_tracking.stderr index 38eb85b30..35b7341f6 100644 --- a/tests/ui/async-await/issue-68112.no_drop_tracking.stderr +++ b/tests/ui/async-await/issue-68112.no_drop_tracking.stderr @@ -5,6 +5,7 @@ LL | require_send(send_fut); | ^^^^^^^^ future created by async block is not `Send` | = help: the trait `Sync` is not implemented for `RefCell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead note: future is not `Send` as it awaits another future which is not `Send` --> $DIR/issue-68112.rs:34:17 | @@ -23,6 +24,7 @@ LL | require_send(send_fut); | ^^^^^^^^ future created by async block is not `Send` | = help: the trait `Sync` is not implemented for `RefCell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead note: future is not `Send` as it awaits another future which is not `Send` --> $DIR/issue-68112.rs:43:17 | @@ -43,6 +45,7 @@ LL | require_send(send_fut); | required by a bound introduced by this call | = help: the trait `Sync` is not implemented for `RefCell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead = note: required for `Arc<RefCell<i32>>` to implement `Send` note: required because it's used within this `async fn` body --> $DIR/issue-68112.rs:50:31 diff --git a/tests/ui/async-await/issue-68112.rs b/tests/ui/async-await/issue-68112.rs index 9c705137a..19119ae0f 100644 --- a/tests/ui/async-await/issue-68112.rs +++ b/tests/ui/async-await/issue-68112.rs @@ -1,7 +1,7 @@ // edition:2018 -// revisions: no_drop_tracking drop_tracking -// [drop_tracking] compile-flags: -Zdrop-tracking=yes -// [no_drop_tracking] compile-flags: -Zdrop-tracking=no +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir use std::{ cell::RefCell, @@ -14,7 +14,7 @@ use std::{ fn require_send(_: impl Send) {} struct Ready<T>(Option<T>); -impl<T> Future for Ready<T> { +impl<T: Unpin> Future for Ready<T> { type Output = T; fn poll(mut self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<T> { Poll::Ready(self.0.take().unwrap()) diff --git a/tests/ui/async-await/issue-70818.drop_tracking.stderr b/tests/ui/async-await/issue-70818.drop_tracking.stderr new file mode 100644 index 000000000..ab0698c3e --- /dev/null +++ b/tests/ui/async-await/issue-70818.drop_tracking.stderr @@ -0,0 +1,18 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-70818.rs:7:38 + | +LL | fn foo<T: Send, U>(ty: T, ty1: U) -> impl Future<Output = (T, U)> + Send { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future created by async block is not `Send` + | +note: captured value is not `Send` + --> $DIR/issue-70818.rs:9:18 + | +LL | async { (ty, ty1) } + | ^^^ has type `U` which is not `Send` +help: consider restricting type parameter `U` + | +LL | fn foo<T: Send, U: std::marker::Send>(ty: T, ty1: U) -> impl Future<Output = (T, U)> + Send { + | +++++++++++++++++++ + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-70818.drop_tracking_mir.stderr b/tests/ui/async-await/issue-70818.drop_tracking_mir.stderr new file mode 100644 index 000000000..ab0698c3e --- /dev/null +++ b/tests/ui/async-await/issue-70818.drop_tracking_mir.stderr @@ -0,0 +1,18 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-70818.rs:7:38 + | +LL | fn foo<T: Send, U>(ty: T, ty1: U) -> impl Future<Output = (T, U)> + Send { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future created by async block is not `Send` + | +note: captured value is not `Send` + --> $DIR/issue-70818.rs:9:18 + | +LL | async { (ty, ty1) } + | ^^^ has type `U` which is not `Send` +help: consider restricting type parameter `U` + | +LL | fn foo<T: Send, U: std::marker::Send>(ty: T, ty1: U) -> impl Future<Output = (T, U)> + Send { + | +++++++++++++++++++ + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-70818.no_drop_tracking.stderr b/tests/ui/async-await/issue-70818.no_drop_tracking.stderr new file mode 100644 index 000000000..ab0698c3e --- /dev/null +++ b/tests/ui/async-await/issue-70818.no_drop_tracking.stderr @@ -0,0 +1,18 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-70818.rs:7:38 + | +LL | fn foo<T: Send, U>(ty: T, ty1: U) -> impl Future<Output = (T, U)> + Send { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future created by async block is not `Send` + | +note: captured value is not `Send` + --> $DIR/issue-70818.rs:9:18 + | +LL | async { (ty, ty1) } + | ^^^ has type `U` which is not `Send` +help: consider restricting type parameter `U` + | +LL | fn foo<T: Send, U: std::marker::Send>(ty: T, ty1: U) -> impl Future<Output = (T, U)> + Send { + | +++++++++++++++++++ + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-70818.rs b/tests/ui/async-await/issue-70818.rs index 019c56eb2..2941de0f5 100644 --- a/tests/ui/async-await/issue-70818.rs +++ b/tests/ui/async-await/issue-70818.rs @@ -1,3 +1,6 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // edition:2018 use std::future::Future; diff --git a/tests/ui/async-await/issue-70818.stderr b/tests/ui/async-await/issue-70818.stderr index 20109d4d1..ab0698c3e 100644 --- a/tests/ui/async-await/issue-70818.stderr +++ b/tests/ui/async-await/issue-70818.stderr @@ -1,11 +1,11 @@ error: future cannot be sent between threads safely - --> $DIR/issue-70818.rs:4:38 + --> $DIR/issue-70818.rs:7:38 | LL | fn foo<T: Send, U>(ty: T, ty1: U) -> impl Future<Output = (T, U)> + Send { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future created by async block is not `Send` | note: captured value is not `Send` - --> $DIR/issue-70818.rs:6:18 + --> $DIR/issue-70818.rs:9:18 | LL | async { (ty, ty1) } | ^^^ has type `U` which is not `Send` diff --git a/tests/ui/async-await/issue-70935-complex-spans.drop_tracking_mir.stderr b/tests/ui/async-await/issue-70935-complex-spans.drop_tracking_mir.stderr new file mode 100644 index 000000000..c636be15a --- /dev/null +++ b/tests/ui/async-await/issue-70935-complex-spans.drop_tracking_mir.stderr @@ -0,0 +1,34 @@ +error[E0277]: `Sender<i32>` cannot be shared between threads safely + --> $DIR/issue-70935-complex-spans.rs:13:45 + | +LL | fn foo(tx: std::sync::mpsc::Sender<i32>) -> impl Future + Send { + | ^^^^^^^^^^^^^^^^^^ `Sender<i32>` cannot be shared between threads safely + | + = help: the trait `Sync` is not implemented for `Sender<i32>` + = note: required for `&Sender<i32>` to implement `Send` +note: required because it's used within this closure + --> $DIR/issue-70935-complex-spans.rs:17:13 + | +LL | baz(|| async{ + | ^^ +note: required because it's used within this `async fn` body + --> $DIR/issue-70935-complex-spans.rs:10:67 + | +LL | async fn baz<T>(_c: impl FnMut() -> T) where T: Future<Output=()> { + | ___________________________________________________________________^ +LL | | } + | |_^ + = note: required because it captures the following types: `impl Future<Output = ()>` +note: required because it's used within this `async` block + --> $DIR/issue-70935-complex-spans.rs:16:5 + | +LL | / async move { +LL | | baz(|| async{ +LL | | foo(tx.clone()); +LL | | }).await; +LL | | } + | |_____^ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/async-await/issue-70935-complex-spans.rs b/tests/ui/async-await/issue-70935-complex-spans.rs index b6d17f93a..78625bd39 100644 --- a/tests/ui/async-await/issue-70935-complex-spans.rs +++ b/tests/ui/async-await/issue-70935-complex-spans.rs @@ -1,7 +1,7 @@ // edition:2018 -// revisions: no_drop_tracking drop_tracking -// [no_drop_tracking]compile-flags:-Zdrop-tracking=no -// [drop_tracking]compile-flags:-Zdrop-tracking +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // #70935: Check if we do not emit snippet // with newlines which lead complex diagnostics. @@ -12,7 +12,7 @@ async fn baz<T>(_c: impl FnMut() -> T) where T: Future<Output=()> { fn foo(tx: std::sync::mpsc::Sender<i32>) -> impl Future + Send { //[no_drop_tracking]~^ ERROR future cannot be sent between threads safely - //[drop_tracking]~^^ ERROR `Sender<i32>` cannot be shared between threads + //[drop_tracking,drop_tracking_mir]~^^ ERROR `Sender<i32>` cannot be shared between threads async move { baz(|| async{ foo(tx.clone()); diff --git a/tests/ui/async-await/issue-73741-type-err-drop-tracking.drop_tracking.stderr b/tests/ui/async-await/issue-73741-type-err-drop-tracking.drop_tracking.stderr new file mode 100644 index 000000000..6d19c3beb --- /dev/null +++ b/tests/ui/async-await/issue-73741-type-err-drop-tracking.drop_tracking.stderr @@ -0,0 +1,11 @@ +error[E0070]: invalid left-hand side of assignment + --> $DIR/issue-73741-type-err-drop-tracking.rs:11:7 + | +LL | 1 = 2; + | - ^ + | | + | cannot assign to this expression + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0070`. diff --git a/tests/ui/async-await/issue-73741-type-err-drop-tracking.drop_tracking_mir.stderr b/tests/ui/async-await/issue-73741-type-err-drop-tracking.drop_tracking_mir.stderr new file mode 100644 index 000000000..6d19c3beb --- /dev/null +++ b/tests/ui/async-await/issue-73741-type-err-drop-tracking.drop_tracking_mir.stderr @@ -0,0 +1,11 @@ +error[E0070]: invalid left-hand side of assignment + --> $DIR/issue-73741-type-err-drop-tracking.rs:11:7 + | +LL | 1 = 2; + | - ^ + | | + | cannot assign to this expression + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0070`. diff --git a/tests/ui/async-await/issue-73741-type-err-drop-tracking.no_drop_tracking.stderr b/tests/ui/async-await/issue-73741-type-err-drop-tracking.no_drop_tracking.stderr new file mode 100644 index 000000000..6d19c3beb --- /dev/null +++ b/tests/ui/async-await/issue-73741-type-err-drop-tracking.no_drop_tracking.stderr @@ -0,0 +1,11 @@ +error[E0070]: invalid left-hand side of assignment + --> $DIR/issue-73741-type-err-drop-tracking.rs:11:7 + | +LL | 1 = 2; + | - ^ + | | + | cannot assign to this expression + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0070`. diff --git a/tests/ui/async-await/issue-73741-type-err-drop-tracking.rs b/tests/ui/async-await/issue-73741-type-err-drop-tracking.rs index c3423ad62..1fa8d6914 100644 --- a/tests/ui/async-await/issue-73741-type-err-drop-tracking.rs +++ b/tests/ui/async-await/issue-73741-type-err-drop-tracking.rs @@ -1,5 +1,8 @@ // edition:2018 -// compile-flags: -Zdrop-tracking +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir +// // Regression test for issue #73741 // Ensures that we don't emit spurious errors when // a type error ocurrs in an `async fn` diff --git a/tests/ui/async-await/issue-73741-type-err-drop-tracking.stderr b/tests/ui/async-await/issue-73741-type-err-drop-tracking.stderr index d4e3b6c3b..6d19c3beb 100644 --- a/tests/ui/async-await/issue-73741-type-err-drop-tracking.stderr +++ b/tests/ui/async-await/issue-73741-type-err-drop-tracking.stderr @@ -1,5 +1,5 @@ error[E0070]: invalid left-hand side of assignment - --> $DIR/issue-73741-type-err-drop-tracking.rs:8:7 + --> $DIR/issue-73741-type-err-drop-tracking.rs:11:7 | LL | 1 = 2; | - ^ diff --git a/tests/ui/async-await/issue-74072-lifetime-name-annotations.stderr b/tests/ui/async-await/issue-74072-lifetime-name-annotations.stderr index b96cab9f0..628ba1a48 100644 --- a/tests/ui/async-await/issue-74072-lifetime-name-annotations.stderr +++ b/tests/ui/async-await/issue-74072-lifetime-name-annotations.stderr @@ -4,9 +4,9 @@ error[E0506]: cannot assign to `*x` because it is borrowed LL | pub async fn async_fn(x: &mut i32) -> &i32 { | - let's call the lifetime of this reference `'1` LL | let y = &*x; - | --- borrow of `*x` occurs here + | --- `*x` is borrowed here LL | *x += 1; - | ^^^^^^^ assignment to borrowed `*x` occurs here + | ^^^^^^^ `*x` is assigned to here but it was already borrowed LL | y | - returning this value requires that `*x` is borrowed for `'1` @@ -14,9 +14,9 @@ error[E0506]: cannot assign to `*x` because it is borrowed --> $DIR/issue-74072-lifetime-name-annotations.rs:16:9 | LL | let y = &*x; - | --- borrow of `*x` occurs here + | --- `*x` is borrowed here LL | *x += 1; - | ^^^^^^^ assignment to borrowed `*x` occurs here + | ^^^^^^^ `*x` is assigned to here but it was already borrowed LL | y | - returning this value requires that `*x` is borrowed for `'1` LL | })() @@ -28,9 +28,9 @@ error[E0506]: cannot assign to `*x` because it is borrowed LL | (async move || -> &i32 { | - let's call the lifetime of this reference `'1` LL | let y = &*x; - | --- borrow of `*x` occurs here + | --- `*x` is borrowed here LL | *x += 1; - | ^^^^^^^ assignment to borrowed `*x` occurs here + | ^^^^^^^ `*x` is assigned to here but it was already borrowed LL | y | - returning this value requires that `*x` is borrowed for `'1` @@ -38,9 +38,9 @@ error[E0506]: cannot assign to `*x` because it is borrowed --> $DIR/issue-74072-lifetime-name-annotations.rs:32:9 | LL | let y = &*x; - | --- borrow of `*x` occurs here + | --- `*x` is borrowed here LL | *x += 1; - | ^^^^^^^ assignment to borrowed `*x` occurs here + | ^^^^^^^ `*x` is assigned to here but it was already borrowed LL | y | - returning this value requires that `*x` is borrowed for `'1` LL | } diff --git a/tests/ui/async-await/issue-75785-confusing-named-region.stderr b/tests/ui/async-await/issue-75785-confusing-named-region.stderr index 3b731d9c6..b69033a0e 100644 --- a/tests/ui/async-await/issue-75785-confusing-named-region.stderr +++ b/tests/ui/async-await/issue-75785-confusing-named-region.stderr @@ -4,9 +4,9 @@ error[E0506]: cannot assign to `*x` because it is borrowed LL | pub async fn async_fn(x: &mut i32) -> (&i32, &i32) { | - let's call the lifetime of this reference `'1` LL | let y = &*x; - | --- borrow of `*x` occurs here + | --- `*x` is borrowed here LL | *x += 1; - | ^^^^^^^ assignment to borrowed `*x` occurs here + | ^^^^^^^ `*x` is assigned to here but it was already borrowed LL | (&32, y) | -------- returning this value requires that `*x` is borrowed for `'1` diff --git a/tests/ui/async-await/issue-86507.stderr b/tests/ui/async-await/issue-86507.drop_tracking.stderr index 8c2c06da2..5c8b7ef1b 100644 --- a/tests/ui/async-await/issue-86507.stderr +++ b/tests/ui/async-await/issue-86507.drop_tracking.stderr @@ -1,5 +1,5 @@ error: future cannot be sent between threads safely - --> $DIR/issue-86507.rs:17:13 + --> $DIR/issue-86507.rs:20:13 | LL | / Box::pin( LL | | async move { @@ -9,11 +9,11 @@ LL | | ) | |_____________^ future created by async block is not `Send` | note: captured value is not `Send` because `&` references cannot be sent unless their referent is `Sync` - --> $DIR/issue-86507.rs:19:29 + --> $DIR/issue-86507.rs:22:29 | LL | let x = x; | ^ has type `&T` which is not `Send`, because `T` is not `Sync` - = note: required for the cast from `[async block@$DIR/issue-86507.rs:18:17: 20:18]` to the object type `dyn Future<Output = ()> + Send` + = note: required for the cast from `[async block@$DIR/issue-86507.rs:21:17: 23:18]` to the object type `dyn Future<Output = ()> + Send` help: consider further restricting this bound | LL | fn bar<'me, 'async_trait, T: Send + std::marker::Sync>(x: &'me T) diff --git a/tests/ui/async-await/issue-86507.drop_tracking_mir.stderr b/tests/ui/async-await/issue-86507.drop_tracking_mir.stderr new file mode 100644 index 000000000..5c8b7ef1b --- /dev/null +++ b/tests/ui/async-await/issue-86507.drop_tracking_mir.stderr @@ -0,0 +1,23 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-86507.rs:20:13 + | +LL | / Box::pin( +LL | | async move { +LL | | let x = x; +LL | | } +LL | | ) + | |_____________^ future created by async block is not `Send` + | +note: captured value is not `Send` because `&` references cannot be sent unless their referent is `Sync` + --> $DIR/issue-86507.rs:22:29 + | +LL | let x = x; + | ^ has type `&T` which is not `Send`, because `T` is not `Sync` + = note: required for the cast from `[async block@$DIR/issue-86507.rs:21:17: 23:18]` to the object type `dyn Future<Output = ()> + Send` +help: consider further restricting this bound + | +LL | fn bar<'me, 'async_trait, T: Send + std::marker::Sync>(x: &'me T) + | +++++++++++++++++++ + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-86507.no_drop_tracking.stderr b/tests/ui/async-await/issue-86507.no_drop_tracking.stderr new file mode 100644 index 000000000..5c8b7ef1b --- /dev/null +++ b/tests/ui/async-await/issue-86507.no_drop_tracking.stderr @@ -0,0 +1,23 @@ +error: future cannot be sent between threads safely + --> $DIR/issue-86507.rs:20:13 + | +LL | / Box::pin( +LL | | async move { +LL | | let x = x; +LL | | } +LL | | ) + | |_____________^ future created by async block is not `Send` + | +note: captured value is not `Send` because `&` references cannot be sent unless their referent is `Sync` + --> $DIR/issue-86507.rs:22:29 + | +LL | let x = x; + | ^ has type `&T` which is not `Send`, because `T` is not `Sync` + = note: required for the cast from `[async block@$DIR/issue-86507.rs:21:17: 23:18]` to the object type `dyn Future<Output = ()> + Send` +help: consider further restricting this bound + | +LL | fn bar<'me, 'async_trait, T: Send + std::marker::Sync>(x: &'me T) + | +++++++++++++++++++ + +error: aborting due to previous error + diff --git a/tests/ui/async-await/issue-86507.rs b/tests/ui/async-await/issue-86507.rs index 317f03176..63c298dbe 100644 --- a/tests/ui/async-await/issue-86507.rs +++ b/tests/ui/async-await/issue-86507.rs @@ -1,3 +1,6 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // edition:2018 use ::core::pin::Pin; diff --git a/tests/ui/async-await/issue-93648.rs b/tests/ui/async-await/issue-93648.rs index 4ce3ac1e8..ec2249ca5 100644 --- a/tests/ui/async-await/issue-93648.rs +++ b/tests/ui/async-await/issue-93648.rs @@ -1,6 +1,8 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // edition:2021 // build-pass -// compile-flags: -Zdrop-tracking fn main() { let _ = async { diff --git a/tests/ui/async-await/issue-98634.rs b/tests/ui/async-await/issue-98634.rs index b0d38687f..169cc7f9b 100644 --- a/tests/ui/async-await/issue-98634.rs +++ b/tests/ui/async-await/issue-98634.rs @@ -43,8 +43,8 @@ impl Runtime { 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 = ()>` + //~^ ERROR expected `callback` to be a fn item that returns `Pin<Box<dyn Future<Output = ()>>>`, but it returns `impl Future<Output = ()>` + //~| ERROR expected `callback` to be a fn item that returns `Pin<Box<dyn Future<Output = ()>>>`, but it returns `impl Future<Output = ()>` + //~| ERROR expected `callback` to be a fn item that returns `Pin<Box<dyn Future<Output = ()>>>`, but it returns `impl Future<Output = ()>` }); } diff --git a/tests/ui/async-await/issue-98634.stderr b/tests/ui/async-await/issue-98634.stderr index 5160e48d8..5b7f18a98 100644 --- a/tests/ui/async-await/issue-98634.stderr +++ b/tests/ui/async-await/issue-98634.stderr @@ -1,54 +1,33 @@ -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 = ()>` +error[E0271]: expected `callback` to be a fn item that returns `Pin<Box<dyn Future<Output = ()>>>`, but it returns `impl Future<Output = ()>` --> $DIR/issue-98634.rs:45:23 | LL | StructAsync { callback }.await; - | ^^^^^^^^ expected struct `Pin`, found opaque type + | ^^^^^^^^ expected `Pin<Box<dyn Future<Output = ()>>>`, found future | -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 = ()>` +error[E0271]: expected `callback` to be a fn item that returns `Pin<Box<dyn Future<Output = ()>>>`, 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 + | ^^^^^^^^^^^^^^^^^^^^^^^^ expected `Pin<Box<dyn Future<Output = ()>>>`, found future | -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 = ()>` +error[E0271]: expected `callback` to be a fn item that returns `Pin<Box<dyn Future<Output = ()>>>`, 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 + | ^^^^^^ expected `Pin<Box<dyn Future<Output = ()>>>`, found future | -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 | diff --git a/tests/ui/async-await/issues/auxiliary/issue_67893.rs b/tests/ui/async-await/issues/auxiliary/issue_67893.rs index 387966a50..d53944698 100644 --- a/tests/ui/async-await/issues/auxiliary/issue_67893.rs +++ b/tests/ui/async-await/issues/auxiliary/issue_67893.rs @@ -1,3 +1,6 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // edition:2018 use std::sync::{Arc, Mutex}; diff --git a/tests/ui/async-await/issues/issue-102206.stderr b/tests/ui/async-await/issues/issue-102206.stderr index 2ab790ac7..750b7a886 100644 --- a/tests/ui/async-await/issues/issue-102206.stderr +++ b/tests/ui/async-await/issues/issue-102206.stderr @@ -4,17 +4,10 @@ error[E0308]: mismatched types LL | std::mem::size_of_val(foo()); | --------------------- ^^^^^ | | | - | | expected reference, found opaque type + | | expected `&_`, found future | | help: consider borrowing here: `&foo()` | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/issue-102206.rs:3:16 - | -LL | async fn foo() {} - | ^ checked the `Output` of this `async fn`, found opaque type - = note: expected reference `&_` - found opaque type `impl Future<Output = ()>` note: function defined here --> $SRC_DIR/core/src/mem/mod.rs:LL:COL diff --git a/tests/ui/async-await/issues/issue-107280.rs b/tests/ui/async-await/issues/issue-107280.rs new file mode 100644 index 000000000..85fce8740 --- /dev/null +++ b/tests/ui/async-await/issues/issue-107280.rs @@ -0,0 +1,15 @@ +// edition:2021 + +async fn foo() { + inner::<false>().await + //~^ ERROR: function takes 2 generic arguments but 1 generic argument was supplied + //~| ERROR: type inside `async fn` body must be known in this context + //~| ERROR: type inside `async fn` body must be known in this context + //~| ERROR: type inside `async fn` body must be known in this context + //~| ERROR: type inside `async fn` body must be known in this context + //~| ERROR: type inside `async fn` body must be known in this context +} + +async fn inner<T, const PING: bool>() {} + +fn main() {} diff --git a/tests/ui/async-await/issues/issue-107280.stderr b/tests/ui/async-await/issues/issue-107280.stderr new file mode 100644 index 000000000..dd3e10fcc --- /dev/null +++ b/tests/ui/async-await/issues/issue-107280.stderr @@ -0,0 +1,82 @@ +error[E0107]: function takes 2 generic arguments but 1 generic argument was supplied + --> $DIR/issue-107280.rs:4:5 + | +LL | inner::<false>().await + | ^^^^^ ----- supplied 1 generic argument + | | + | expected 2 generic arguments + | +note: function defined here, with 2 generic parameters: `T`, `PING` + --> $DIR/issue-107280.rs:13:10 + | +LL | async fn inner<T, const PING: bool>() {} + | ^^^^^ - ---------------- +help: add missing generic argument + | +LL | inner::<false, PING>().await + | ++++++ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/issue-107280.rs:4:5 + | +LL | inner::<false>().await + | ^^^^^^^^^^^^^^ cannot infer the value of const parameter `PING` declared on the function `inner` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/issue-107280.rs:4:21 + | +LL | inner::<false>().await + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/issue-107280.rs:4:5 + | +LL | inner::<false>().await + | ^^^^^^^^^^^^^^ cannot infer the value of const parameter `PING` declared on the function `inner` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/issue-107280.rs:4:21 + | +LL | inner::<false>().await + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/issue-107280.rs:4:5 + | +LL | inner::<false>().await + | ^^^^^^^^^^^^^^ cannot infer the value of const parameter `PING` declared on the function `inner` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/issue-107280.rs:4:21 + | +LL | inner::<false>().await + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/issue-107280.rs:4:5 + | +LL | inner::<false>().await + | ^^^^^^^^^^^^^^ cannot infer the value of const parameter `PING` declared on the function `inner` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/issue-107280.rs:4:21 + | +LL | inner::<false>().await + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/issue-107280.rs:4:5 + | +LL | inner::<false>().await + | ^^^^^^^^^^^^^^ cannot infer the value of const parameter `PING` declared on the function `inner` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/issue-107280.rs:4:21 + | +LL | inner::<false>().await + | ^^^^^^ + +error: aborting due to 6 previous errors + +Some errors have detailed explanations: E0107, E0698. +For more information about an error, try `rustc --explain E0107`. diff --git a/tests/ui/async-await/issues/issue-62097.rs b/tests/ui/async-await/issues/issue-62097.rs index a24c84cff..13c72abb1 100644 --- a/tests/ui/async-await/issues/issue-62097.rs +++ b/tests/ui/async-await/issues/issue-62097.rs @@ -12,7 +12,7 @@ impl Struct { pub async fn run_dummy_fn(&self) { foo(|| self.bar()).await; //~^ ERROR closure may outlive the current function - //~| ERROR borrowed data escapes outside of associated function + //~| ERROR borrowed data escapes outside of method } pub fn bar(&self) {} diff --git a/tests/ui/async-await/issues/issue-62097.stderr b/tests/ui/async-await/issues/issue-62097.stderr index 786f62132..21a61548d 100644 --- a/tests/ui/async-await/issues/issue-62097.stderr +++ b/tests/ui/async-await/issues/issue-62097.stderr @@ -16,18 +16,18 @@ help: to force the closure to take ownership of `self` (and any other referenced LL | foo(move || self.bar()).await; | ++++ -error[E0521]: borrowed data escapes outside of associated function +error[E0521]: borrowed data escapes outside of method --> $DIR/issue-62097.rs:13:9 | LL | pub async fn run_dummy_fn(&self) { | ----- | | - | `self` is a reference that is only valid in the associated function body + | `self` is a reference that is only valid in the method body | let's call the lifetime of this reference `'1` LL | foo(|| self.bar()).await; | ^^^^^^^^^^^^^^^^^^ | | - | `self` escapes the associated function body here + | `self` escapes the method body here | argument requires that `'1` must outlive `'static` error: aborting due to 2 previous errors diff --git a/tests/ui/async-await/issues/issue-65159.rs b/tests/ui/async-await/issues/issue-65159.rs index df2ca0257..6e547508b 100644 --- a/tests/ui/async-await/issues/issue-65159.rs +++ b/tests/ui/async-await/issues/issue-65159.rs @@ -3,7 +3,7 @@ // edition:2018 async fn copy() -> Result<()> -//~^ ERROR this enum takes 2 generic arguments +//~^ ERROR enum takes 2 generic arguments { Ok(()) } diff --git a/tests/ui/async-await/issues/issue-65159.stderr b/tests/ui/async-await/issues/issue-65159.stderr index 40c0e72b2..b8741333c 100644 --- a/tests/ui/async-await/issues/issue-65159.stderr +++ b/tests/ui/async-await/issues/issue-65159.stderr @@ -1,4 +1,4 @@ -error[E0107]: this enum takes 2 generic arguments but 1 generic argument was supplied +error[E0107]: enum takes 2 generic arguments but 1 generic argument was supplied --> $DIR/issue-65159.rs:5:20 | LL | async fn copy() -> Result<()> diff --git a/tests/ui/async-await/issues/issue-65436-raw-ptr-not-send.no_drop_tracking.stderr b/tests/ui/async-await/issues/issue-65436-raw-ptr-not-send.no_drop_tracking.stderr index 1033fa6cc..8745bdd97 100644 --- a/tests/ui/async-await/issues/issue-65436-raw-ptr-not-send.no_drop_tracking.stderr +++ b/tests/ui/async-await/issues/issue-65436-raw-ptr-not-send.no_drop_tracking.stderr @@ -1,5 +1,5 @@ error: future cannot be sent between threads safely - --> $DIR/issue-65436-raw-ptr-not-send.rs:16:17 + --> $DIR/issue-65436-raw-ptr-not-send.rs:17:17 | LL | assert_send(async { | _________________^ @@ -8,9 +8,9 @@ LL | | bar(Foo(std::ptr::null())).await; LL | | }) | |_____^ future created by async block is not `Send` | - = help: within `[async block@$DIR/issue-65436-raw-ptr-not-send.rs:16:17: 19:6]`, the trait `Send` is not implemented for `*const u8` + = help: within `[async block@$DIR/issue-65436-raw-ptr-not-send.rs:17:17: 20:6]`, the trait `Send` is not implemented for `*const u8` note: future is not `Send` as this value is used across an await - --> $DIR/issue-65436-raw-ptr-not-send.rs:18:35 + --> $DIR/issue-65436-raw-ptr-not-send.rs:19:35 | LL | bar(Foo(std::ptr::null())).await; | ---------------- ^^^^^^- `std::ptr::null()` is later dropped here @@ -18,12 +18,12 @@ LL | bar(Foo(std::ptr::null())).await; | | await occurs here, with `std::ptr::null()` maybe used later | has type `*const u8` which is not `Send` help: consider moving this into a `let` binding to create a shorter lived borrow - --> $DIR/issue-65436-raw-ptr-not-send.rs:18:13 + --> $DIR/issue-65436-raw-ptr-not-send.rs:19:13 | LL | bar(Foo(std::ptr::null())).await; | ^^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `assert_send` - --> $DIR/issue-65436-raw-ptr-not-send.rs:13:19 + --> $DIR/issue-65436-raw-ptr-not-send.rs:14:19 | LL | fn assert_send<T: Send>(_: T) {} | ^^^^ required by this bound in `assert_send` diff --git a/tests/ui/async-await/issues/issue-65436-raw-ptr-not-send.rs b/tests/ui/async-await/issues/issue-65436-raw-ptr-not-send.rs index 91edbc10d..d7ef92951 100644 --- a/tests/ui/async-await/issues/issue-65436-raw-ptr-not-send.rs +++ b/tests/ui/async-await/issues/issue-65436-raw-ptr-not-send.rs @@ -1,8 +1,9 @@ // edition:2018 -// revisions: no_drop_tracking drop_tracking +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // [drop_tracking] check-pass -// [drop_tracking] compile-flags: -Zdrop-tracking=yes -// [no_drop_tracking] compile-flags: -Zdrop-tracking=no +// [drop_tracking_mir] check-pass struct Foo(*const u8); diff --git a/tests/ui/async-await/issues/issue-67611-static-mut-refs.rs b/tests/ui/async-await/issues/issue-67611-static-mut-refs.rs index dda4a151d..c4f8f607d 100644 --- a/tests/ui/async-await/issues/issue-67611-static-mut-refs.rs +++ b/tests/ui/async-await/issues/issue-67611-static-mut-refs.rs @@ -1,6 +1,10 @@ // build-pass // edition:2018 +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir + static mut A: [i32; 5] = [1, 2, 3, 4, 5]; fn is_send_sync<T: Send + Sync>(_: T) {} diff --git a/tests/ui/async-await/issues/issue-67893.stderr b/tests/ui/async-await/issues/issue-67893.stderr index 2ce68a782..ce9424c8b 100644 --- a/tests/ui/async-await/issues/issue-67893.stderr +++ b/tests/ui/async-await/issues/issue-67893.stderr @@ -6,7 +6,7 @@ LL | g(issue_67893::run()) | = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `MutexGuard<'_, ()>` note: future is not `Send` as this value is used across an await - --> $DIR/auxiliary/issue_67893.rs:9:26 + --> $DIR/auxiliary/issue_67893.rs:12:26 | LL | f(*x.lock().unwrap()).await; | ----------------- ^^^^^^- `x.lock().unwrap()` is later dropped here diff --git a/tests/ui/async-await/issues/issue-72312.stderr b/tests/ui/async-await/issues/issue-72312.stderr index aa947b690..679272858 100644 --- a/tests/ui/async-await/issues/issue-72312.stderr +++ b/tests/ui/async-await/issues/issue-72312.stderr @@ -1,10 +1,10 @@ -error[E0521]: borrowed data escapes outside of associated function +error[E0521]: borrowed data escapes outside of method --> $DIR/issue-72312.rs:12:9 | LL | pub async fn start(&self) { | ----- | | - | `self` is a reference that is only valid in the associated function body + | `self` is a reference that is only valid in the method body | let's call the lifetime of this reference `'1` ... LL | / require_static(async move { @@ -15,7 +15,7 @@ LL | | &self; LL | | }); | | ^ | | | - | |__________`self` escapes the associated function body here + | |__________`self` escapes the method body here | argument requires that `'1` must outlive `'static` error: aborting due to previous error diff --git a/tests/ui/async-await/multiple-lifetimes/member-constraints-min-choice-issue-63033.rs b/tests/ui/async-await/multiple-lifetimes/member-constraints-min-choice-issue-63033.rs new file mode 100644 index 000000000..614f18972 --- /dev/null +++ b/tests/ui/async-await/multiple-lifetimes/member-constraints-min-choice-issue-63033.rs @@ -0,0 +1,10 @@ +// Regression test for #63033. + +// check-pass +// edition: 2018 + +async fn test1(_: &'static u8, _: &'_ u8, _: &'_ u8) {} + +async fn test2<'s>(_: &'s u8, _: &'_ &'s u8, _: &'_ &'s u8) {} + +fn main() {} diff --git a/tests/ui/async-await/multiple-lifetimes/ret-impl-trait-one.stderr b/tests/ui/async-await/multiple-lifetimes/ret-impl-trait-one.stderr index ae4d0d585..5ae1d78a9 100644 --- a/tests/ui/async-await/multiple-lifetimes/ret-impl-trait-one.stderr +++ b/tests/ui/async-await/multiple-lifetimes/ret-impl-trait-one.stderr @@ -17,8 +17,9 @@ error[E0700]: hidden type for `impl Trait<'a>` captures lifetime that does not a --> $DIR/ret-impl-trait-one.rs:16:80 | LL | async fn async_ret_impl_trait1<'a, 'b>(a: &'a u8, b: &'b u8) -> impl Trait<'a> { - | ____________________________________--__________________________________________^ - | | | + | ____________________________________--___________________________--------------_^ + | | | | + | | | opaque type defined here | | hidden type `(&'a u8, &'b u8)` captures the lifetime `'b` as defined here LL | | LL | | (a, b) diff --git a/tests/ui/async-await/multiple-lifetimes/ret-ref.stderr b/tests/ui/async-await/multiple-lifetimes/ret-ref.stderr index d86e84033..a599ac1d9 100644 --- a/tests/ui/async-await/multiple-lifetimes/ret-ref.stderr +++ b/tests/ui/async-await/multiple-lifetimes/ret-ref.stderr @@ -2,9 +2,9 @@ error[E0506]: cannot assign to `a` because it is borrowed --> $DIR/ret-ref.rs:16:5 | LL | let future = multiple_named_lifetimes(&a, &b); - | -- borrow of `a` occurs here + | -- `a` is borrowed here LL | a += 1; - | ^^^^^^ assignment to borrowed `a` occurs here + | ^^^^^^ `a` is assigned to here but it was already borrowed LL | b += 1; LL | let p = future.await; | ------ borrow later used here @@ -13,10 +13,10 @@ error[E0506]: cannot assign to `b` because it is borrowed --> $DIR/ret-ref.rs:17:5 | LL | let future = multiple_named_lifetimes(&a, &b); - | -- borrow of `b` occurs here + | -- `b` is borrowed here LL | a += 1; LL | b += 1; - | ^^^^^^ assignment to borrowed `b` occurs here + | ^^^^^^ `b` is assigned to here but it was already borrowed LL | let p = future.await; | ------ borrow later used here @@ -24,10 +24,10 @@ error[E0506]: cannot assign to `a` because it is borrowed --> $DIR/ret-ref.rs:28:5 | LL | let future = multiple_named_lifetimes(&a, &b); - | -- borrow of `a` occurs here + | -- `a` is borrowed here LL | let p = future.await; LL | a += 1; - | ^^^^^^ assignment to borrowed `a` occurs here + | ^^^^^^ `a` is assigned to here but it was already borrowed LL | b += 1; LL | drop(p); | - borrow later used here diff --git a/tests/ui/async-await/mutually-recursive-async-impl-trait-type.drop_tracking.stderr b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.drop_tracking.stderr new file mode 100644 index 000000000..8a7317bb9 --- /dev/null +++ b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.drop_tracking.stderr @@ -0,0 +1,21 @@ +error[E0733]: recursion in an `async fn` requires boxing + --> $DIR/mutually-recursive-async-impl-trait-type.rs:9:18 + | +LL | async fn rec_1() { + | ^ 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[E0733]: recursion in an `async fn` requires boxing + --> $DIR/mutually-recursive-async-impl-trait-type.rs:13:18 + | +LL | async fn rec_2() { + | ^ 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 2 previous errors + +For more information about this error, try `rustc --explain E0733`. diff --git a/tests/ui/async-await/mutually-recursive-async-impl-trait-type.drop_tracking_mir.stderr b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.drop_tracking_mir.stderr new file mode 100644 index 000000000..8a7317bb9 --- /dev/null +++ b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.drop_tracking_mir.stderr @@ -0,0 +1,21 @@ +error[E0733]: recursion in an `async fn` requires boxing + --> $DIR/mutually-recursive-async-impl-trait-type.rs:9:18 + | +LL | async fn rec_1() { + | ^ 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[E0733]: recursion in an `async fn` requires boxing + --> $DIR/mutually-recursive-async-impl-trait-type.rs:13:18 + | +LL | async fn rec_2() { + | ^ 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 2 previous errors + +For more information about this error, try `rustc --explain E0733`. diff --git a/tests/ui/async-await/mutually-recursive-async-impl-trait-type.no_drop_tracking.stderr b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.no_drop_tracking.stderr new file mode 100644 index 000000000..8a7317bb9 --- /dev/null +++ b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.no_drop_tracking.stderr @@ -0,0 +1,21 @@ +error[E0733]: recursion in an `async fn` requires boxing + --> $DIR/mutually-recursive-async-impl-trait-type.rs:9:18 + | +LL | async fn rec_1() { + | ^ 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[E0733]: recursion in an `async fn` requires boxing + --> $DIR/mutually-recursive-async-impl-trait-type.rs:13:18 + | +LL | async fn rec_2() { + | ^ 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 2 previous errors + +For more information about this error, try `rustc --explain E0733`. diff --git a/tests/ui/async-await/mutually-recursive-async-impl-trait-type.rs b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.rs index bb2a61f03..a241f30e7 100644 --- a/tests/ui/async-await/mutually-recursive-async-impl-trait-type.rs +++ b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.rs @@ -1,3 +1,7 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir + // edition:2018 // Test that impl trait does not allow creating recursive types that are // otherwise forbidden when using `async` and `await`. diff --git a/tests/ui/async-await/mutually-recursive-async-impl-trait-type.stderr b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.stderr index f789ad2a0..8a7317bb9 100644 --- a/tests/ui/async-await/mutually-recursive-async-impl-trait-type.stderr +++ b/tests/ui/async-await/mutually-recursive-async-impl-trait-type.stderr @@ -1,5 +1,5 @@ error[E0733]: recursion in an `async fn` requires boxing - --> $DIR/mutually-recursive-async-impl-trait-type.rs:5:18 + --> $DIR/mutually-recursive-async-impl-trait-type.rs:9:18 | LL | async fn rec_1() { | ^ recursive `async fn` @@ -8,7 +8,7 @@ LL | async fn rec_1() { = note: consider using the `async_recursion` crate: https://crates.io/crates/async_recursion error[E0733]: recursion in an `async fn` requires boxing - --> $DIR/mutually-recursive-async-impl-trait-type.rs:9:18 + --> $DIR/mutually-recursive-async-impl-trait-type.rs:13:18 | LL | async fn rec_2() { | ^ recursive `async fn` diff --git a/tests/ui/async-await/no-const-async.stderr b/tests/ui/async-await/no-const-async.stderr index c5bd520aa..71c228958 100644 --- a/tests/ui/async-await/no-const-async.stderr +++ b/tests/ui/async-await/no-const-async.stderr @@ -28,8 +28,8 @@ note: ...which requires const checking `x`... | LL | pub const async fn x() {} | ^^^^^^^^^^^^^^^^^^^^^^ - = note: ...which requires computing whether `impl core::future::future::Future<Output = ()>` is freeze... - = note: ...which requires evaluating trait selection obligation `impl core::future::future::Future<Output = ()>: core::marker::Freeze`... + = note: ...which requires computing whether `x::{opaque#0}` is freeze... + = note: ...which requires evaluating trait selection obligation `x::{opaque#0}: core::marker::Freeze`... = note: ...which again requires computing type of `x::{opaque#0}`, completing the cycle note: cycle used when checking item types in top-level module --> $DIR/no-const-async.rs:4:1 diff --git a/tests/ui/async-await/non-trivial-drop.rs b/tests/ui/async-await/non-trivial-drop.rs index a3167215d..d4df9d439 100644 --- a/tests/ui/async-await/non-trivial-drop.rs +++ b/tests/ui/async-await/non-trivial-drop.rs @@ -1,6 +1,8 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // build-pass // edition:2018 -// compile-flags: -Zdrop-tracking=y #![feature(generators)] diff --git a/tests/ui/async-await/proper-span-for-type-error.stderr b/tests/ui/async-await/proper-span-for-type-error.stderr index 25f05156c..592ef7faf 100644 --- a/tests/ui/async-await/proper-span-for-type-error.stderr +++ b/tests/ui/async-await/proper-span-for-type-error.stderr @@ -2,7 +2,7 @@ error[E0308]: mismatched types --> $DIR/proper-span-for-type-error.rs:8:5 | LL | a().await - | ^^^^^^^^^ expected enum `Result`, found `()` + | ^^^^^^^^^ expected `Result<(), i32>`, found `()` | = note: expected enum `Result<(), i32>` found unit type `()` diff --git a/tests/ui/async-await/recursive-async-impl-trait-type.drop_tracking.stderr b/tests/ui/async-await/recursive-async-impl-trait-type.drop_tracking.stderr new file mode 100644 index 000000000..7e63a8da5 --- /dev/null +++ b/tests/ui/async-await/recursive-async-impl-trait-type.drop_tracking.stderr @@ -0,0 +1,12 @@ +error[E0733]: recursion in an `async fn` requires boxing + --> $DIR/recursive-async-impl-trait-type.rs:8:40 + | +LL | async fn recursive_async_function() -> () { + | ^^ 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/tests/ui/async-await/recursive-async-impl-trait-type.drop_tracking_mir.stderr b/tests/ui/async-await/recursive-async-impl-trait-type.drop_tracking_mir.stderr new file mode 100644 index 000000000..7e63a8da5 --- /dev/null +++ b/tests/ui/async-await/recursive-async-impl-trait-type.drop_tracking_mir.stderr @@ -0,0 +1,12 @@ +error[E0733]: recursion in an `async fn` requires boxing + --> $DIR/recursive-async-impl-trait-type.rs:8:40 + | +LL | async fn recursive_async_function() -> () { + | ^^ 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/tests/ui/async-await/recursive-async-impl-trait-type.no_drop_tracking.stderr b/tests/ui/async-await/recursive-async-impl-trait-type.no_drop_tracking.stderr new file mode 100644 index 000000000..7e63a8da5 --- /dev/null +++ b/tests/ui/async-await/recursive-async-impl-trait-type.no_drop_tracking.stderr @@ -0,0 +1,12 @@ +error[E0733]: recursion in an `async fn` requires boxing + --> $DIR/recursive-async-impl-trait-type.rs:8:40 + | +LL | async fn recursive_async_function() -> () { + | ^^ 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/tests/ui/async-await/recursive-async-impl-trait-type.rs b/tests/ui/async-await/recursive-async-impl-trait-type.rs index edc4cb8ac..60b34d3a1 100644 --- a/tests/ui/async-await/recursive-async-impl-trait-type.rs +++ b/tests/ui/async-await/recursive-async-impl-trait-type.rs @@ -1,3 +1,6 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // edition:2018 // Test that impl trait does not allow creating recursive types that are // otherwise forbidden when using `async` and `await`. diff --git a/tests/ui/async-await/recursive-async-impl-trait-type.stderr b/tests/ui/async-await/recursive-async-impl-trait-type.stderr index 63f64f445..7e63a8da5 100644 --- a/tests/ui/async-await/recursive-async-impl-trait-type.stderr +++ b/tests/ui/async-await/recursive-async-impl-trait-type.stderr @@ -1,5 +1,5 @@ error[E0733]: recursion in an `async fn` requires boxing - --> $DIR/recursive-async-impl-trait-type.rs:5:40 + --> $DIR/recursive-async-impl-trait-type.rs:8:40 | LL | async fn recursive_async_function() -> () { | ^^ recursive `async fn` diff --git a/tests/ui/async-await/send-bound-async-closure.rs b/tests/ui/async-await/send-bound-async-closure.rs new file mode 100644 index 000000000..4e9e7309b --- /dev/null +++ b/tests/ui/async-await/send-bound-async-closure.rs @@ -0,0 +1,37 @@ +// edition: 2021 +// check-pass + +// This test verifies that we do not create a query cycle when typechecking has several inference +// variables that point to the same generator interior type. + +use std::future::Future; +use std::pin::Pin; +use std::task::{Context, Poll}; + +type ChannelTask = Pin<Box<dyn Future<Output = ()> + Send>>; + +pub fn register_message_type() -> ChannelTask { + Box::pin(async move { + let f = |__cx: &mut Context<'_>| Poll::<()>::Pending; + PollFn { f }.await + }) +} + +struct PollFn<F> { + f: F, +} + +impl<F> Unpin for PollFn<F> {} + +impl<T, F> Future for PollFn<F> +where + F: FnMut(&mut Context<'_>) -> Poll<T>, +{ + type Output = T; + + fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<T> { + (&mut self.f)(cx) + } +} + +fn main() {} diff --git a/tests/ui/async-await/suggest-missing-await-closure.stderr b/tests/ui/async-await/suggest-missing-await-closure.stderr index a5958baff..d44af5b8d 100644 --- a/tests/ui/async-await/suggest-missing-await-closure.stderr +++ b/tests/ui/async-await/suggest-missing-await-closure.stderr @@ -2,17 +2,15 @@ error[E0308]: mismatched types --> $DIR/suggest-missing-await-closure.rs:16:18 | LL | take_u32(x) - | -------- ^ expected `u32`, found opaque type + | -------- ^ expected `u32`, found future | | | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await-closure.rs:8:24 +note: calling an async function returns a future + --> $DIR/suggest-missing-await-closure.rs:16:18 | -LL | async fn make_u32() -> u32 { - | ^^^ checked the `Output` of this `async fn`, found opaque type - = note: expected type `u32` - found opaque type `impl Future<Output = u32>` +LL | take_u32(x) + | ^ note: function defined here --> $DIR/suggest-missing-await-closure.rs:6:4 | diff --git a/tests/ui/async-await/suggest-missing-await.stderr b/tests/ui/async-await/suggest-missing-await.stderr index 1196601ac..f0ec34a6a 100644 --- a/tests/ui/async-await/suggest-missing-await.stderr +++ b/tests/ui/async-await/suggest-missing-await.stderr @@ -2,17 +2,15 @@ error[E0308]: mismatched types --> $DIR/suggest-missing-await.rs:12:14 | LL | take_u32(x) - | -------- ^ expected `u32`, found opaque type + | -------- ^ expected `u32`, found future | | | arguments to this function are incorrect | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:5:24 +note: calling an async function returns a future + --> $DIR/suggest-missing-await.rs:12:14 | -LL | async fn make_u32() -> u32 { - | ^^^ checked the `Output` of this `async fn`, found opaque type - = note: expected type `u32` - found opaque type `impl Future<Output = u32>` +LL | take_u32(x) + | ^ note: function defined here --> $DIR/suggest-missing-await.rs:3:4 | @@ -27,15 +25,13 @@ error[E0308]: mismatched types --> $DIR/suggest-missing-await.rs:22:5 | LL | dummy() - | ^^^^^^^ expected `()`, found opaque type + | ^^^^^^^ expected `()`, found future | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:18:18 +note: calling an async function returns a future + --> $DIR/suggest-missing-await.rs:22:5 | -LL | async fn dummy() {} - | ^ checked the `Output` of this `async fn`, found opaque type - = note: expected unit type `()` - found opaque type `impl Future<Output = ()>` +LL | dummy() + | ^^^^^^^ help: consider `await`ing on the `Future` | LL | dummy().await @@ -55,16 +51,11 @@ LL | | dummy() LL | | LL | | } else { LL | | dummy().await - | | ^^^^^^^^^^^^^ expected opaque type, found `()` + | | ^^^^^^^^^^^^^ expected future, found `()` LL | | LL | | }; | |_____- `if` and `else` have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:18:18 - | -LL | async fn dummy() {} - | ^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future<Output = ()>` found unit type `()` help: consider `await`ing on the `Future` @@ -82,16 +73,11 @@ LL | | 0 => dummy(), LL | | 1 => dummy(), | | ------- this is found to be of type `impl Future<Output = ()>` LL | | 2 => dummy().await, - | | ^^^^^^^^^^^^^ expected opaque type, found `()` + | | ^^^^^^^^^^^^^ expected future, found `()` LL | | LL | | }; | |_____- `match` arms have incompatible types | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:18:18 - | -LL | async fn dummy() {} - | ^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future<Output = ()>` found unit type `()` help: consider `await`ing on the `Future` @@ -106,13 +92,8 @@ error[E0308]: mismatched types LL | let _x = match dummy() { | ------- this expression has type `impl Future<Output = ()>` LL | () => {} - | ^^ expected opaque type, found `()` - | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:18:18 + | ^^ expected future, found `()` | -LL | async fn dummy() {} - | ^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future<Output = ()>` found unit type `()` help: consider `await`ing on the `Future` @@ -127,13 +108,8 @@ LL | match dummy_result() { | -------------- this expression has type `impl Future<Output = Result<(), ()>>` ... LL | Ok(_) => {} - | ^^^^^ expected opaque type, found enum `Result` + | ^^^^^ expected future, found `Result<_, _>` | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:57:28 - | -LL | async fn dummy_result() -> Result<(), ()> { - | ^^^^^^^^^^^^^^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future<Output = Result<(), ()>>` found enum `Result<_, _>` help: consider `await`ing on the `Future` @@ -148,13 +124,8 @@ LL | match dummy_result() { | -------------- this expression has type `impl Future<Output = Result<(), ()>>` ... LL | Err(_) => {} - | ^^^^^^ expected opaque type, found enum `Result` - | -note: while checking the return type of the `async fn` - --> $DIR/suggest-missing-await.rs:57:28 + | ^^^^^^ expected future, found `Result<_, _>` | -LL | async fn dummy_result() -> Result<(), ()> { - | ^^^^^^^^^^^^^^ checked the `Output` of this `async fn`, expected opaque type = note: expected opaque type `impl Future<Output = Result<(), ()>>` found enum `Result<_, _>` help: consider `await`ing on the `Future` diff --git a/tests/ui/async-await/unresolved_type_param.drop_tracking.stderr b/tests/ui/async-await/unresolved_type_param.drop_tracking.stderr new file mode 100644 index 000000000..912e2b34c --- /dev/null +++ b/tests/ui/async-await/unresolved_type_param.drop_tracking.stderr @@ -0,0 +1,39 @@ +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/unresolved_type_param.rs:12:5 + | +LL | bar().await; + | ^^^ cannot infer type for type parameter `T` declared on the function `bar` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/unresolved_type_param.rs:12:10 + | +LL | bar().await; + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/unresolved_type_param.rs:12:5 + | +LL | bar().await; + | ^^^ cannot infer type for type parameter `T` declared on the function `bar` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/unresolved_type_param.rs:12:10 + | +LL | bar().await; + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/unresolved_type_param.rs:12:5 + | +LL | bar().await; + | ^^^ cannot infer type for type parameter `T` declared on the function `bar` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/unresolved_type_param.rs:12:10 + | +LL | bar().await; + | ^^^^^^ + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0698`. diff --git a/tests/ui/async-await/unresolved_type_param.drop_tracking_mir.stderr b/tests/ui/async-await/unresolved_type_param.drop_tracking_mir.stderr new file mode 100644 index 000000000..95c799468 --- /dev/null +++ b/tests/ui/async-await/unresolved_type_param.drop_tracking_mir.stderr @@ -0,0 +1,14 @@ +error[E0282]: type annotations needed + --> $DIR/unresolved_type_param.rs:12:5 + | +LL | bar().await; + | ^^^ cannot infer type of the type parameter `T` declared on the function `bar` + | +help: consider specifying the generic argument + | +LL | bar::<T>().await; + | +++++ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0282`. diff --git a/tests/ui/async-await/unresolved_type_param.no_drop_tracking.stderr b/tests/ui/async-await/unresolved_type_param.no_drop_tracking.stderr new file mode 100644 index 000000000..16d618caa --- /dev/null +++ b/tests/ui/async-await/unresolved_type_param.no_drop_tracking.stderr @@ -0,0 +1,63 @@ +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/unresolved_type_param.rs:12:5 + | +LL | bar().await; + | ^^^ cannot infer type for type parameter `T` declared on the function `bar` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/unresolved_type_param.rs:12:10 + | +LL | bar().await; + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/unresolved_type_param.rs:12:5 + | +LL | bar().await; + | ^^^ cannot infer type for type parameter `T` declared on the function `bar` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/unresolved_type_param.rs:12:10 + | +LL | bar().await; + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/unresolved_type_param.rs:12:5 + | +LL | bar().await; + | ^^^ cannot infer type for type parameter `T` declared on the function `bar` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/unresolved_type_param.rs:12:10 + | +LL | bar().await; + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/unresolved_type_param.rs:12:5 + | +LL | bar().await; + | ^^^ cannot infer type for type parameter `T` declared on the function `bar` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/unresolved_type_param.rs:12:10 + | +LL | bar().await; + | ^^^^^^ + +error[E0698]: type inside `async fn` body must be known in this context + --> $DIR/unresolved_type_param.rs:12:5 + | +LL | bar().await; + | ^^^ cannot infer type for type parameter `T` declared on the function `bar` + | +note: the type is part of the `async fn` body because of this `await` + --> $DIR/unresolved_type_param.rs:12:10 + | +LL | bar().await; + | ^^^^^^ + +error: aborting due to 5 previous errors + +For more information about this error, try `rustc --explain E0698`. diff --git a/tests/ui/async-await/unresolved_type_param.rs b/tests/ui/async-await/unresolved_type_param.rs index 6d6d80614..ca0a92b94 100644 --- a/tests/ui/async-await/unresolved_type_param.rs +++ b/tests/ui/async-await/unresolved_type_param.rs @@ -1,24 +1,36 @@ +// revisions: no_drop_tracking drop_tracking drop_tracking_mir +// [drop_tracking] compile-flags: -Zdrop-tracking +// [drop_tracking_mir] compile-flags: -Zdrop-tracking-mir // Provoke an unresolved type error (T). // Error message should pinpoint the type parameter T as needing to be bound // (rather than give a general error message) // edition:2018 -// compile-flags: -Zdrop-tracking async fn bar<T>() -> () {} async fn foo() { bar().await; - //~^ ERROR type inside `async fn` body must be known in this context - //~| ERROR type inside `async fn` body must be known in this context - //~| ERROR type inside `async fn` body must be known in this context - //~| NOTE cannot infer type for type parameter `T` - //~| NOTE cannot infer type for type parameter `T` - //~| NOTE cannot infer type for type parameter `T` - //~| NOTE the type is part of the `async fn` body because of this `await` - //~| NOTE the type is part of the `async fn` body because of this `await` - //~| NOTE the type is part of the `async fn` body because of this `await` - //~| NOTE in this expansion of desugaring of `await` - //~| NOTE in this expansion of desugaring of `await` - //~| NOTE in this expansion of desugaring of `await` + //[drop_tracking_mir]~^ ERROR type annotations needed + //[drop_tracking_mir]~| NOTE cannot infer type of the type parameter `T` + //[no_drop_tracking,drop_tracking]~^^^ ERROR type inside `async fn` body must be known in this context + //[no_drop_tracking,drop_tracking]~| ERROR type inside `async fn` body must be known in this context + //[no_drop_tracking,drop_tracking]~| ERROR type inside `async fn` body must be known in this context + //[no_drop_tracking,drop_tracking]~| NOTE cannot infer type for type parameter `T` + //[no_drop_tracking,drop_tracking]~| NOTE cannot infer type for type parameter `T` + //[no_drop_tracking,drop_tracking]~| NOTE cannot infer type for type parameter `T` + //[no_drop_tracking,drop_tracking]~| NOTE the type is part of the `async fn` body because of this `await` + //[no_drop_tracking,drop_tracking]~| NOTE the type is part of the `async fn` body because of this `await` + //[no_drop_tracking,drop_tracking]~| NOTE the type is part of the `async fn` body because of this `await` + //[no_drop_tracking,drop_tracking]~| NOTE in this expansion of desugaring of `await` + //[no_drop_tracking,drop_tracking]~| NOTE in this expansion of desugaring of `await` + //[no_drop_tracking,drop_tracking]~| NOTE in this expansion of desugaring of `await` + //[no_drop_tracking]~^^^^^^^^^^^^^^^ ERROR type inside `async fn` body must be known in this context + //[no_drop_tracking]~| ERROR type inside `async fn` body must be known in this context + //[no_drop_tracking]~| NOTE cannot infer type for type parameter `T` + //[no_drop_tracking]~| NOTE cannot infer type for type parameter `T` + //[no_drop_tracking]~| NOTE the type is part of the `async fn` body because of this `await` + //[no_drop_tracking]~| NOTE the type is part of the `async fn` body because of this `await` + //[no_drop_tracking]~| NOTE in this expansion of desugaring of `await` + //[no_drop_tracking]~| NOTE in this expansion of desugaring of `await` } fn main() {} diff --git a/tests/ui/async-await/unresolved_type_param.stderr b/tests/ui/async-await/unresolved_type_param.stderr index 7236c681f..64a31b5fc 100644 --- a/tests/ui/async-await/unresolved_type_param.stderr +++ b/tests/ui/async-await/unresolved_type_param.stderr @@ -1,35 +1,35 @@ error[E0698]: type inside `async fn` body must be known in this context - --> $DIR/unresolved_type_param.rs:10:5 + --> $DIR/unresolved_type_param.rs:13:5 | LL | bar().await; | ^^^ cannot infer type for type parameter `T` declared on the function `bar` | note: the type is part of the `async fn` body because of this `await` - --> $DIR/unresolved_type_param.rs:10:10 + --> $DIR/unresolved_type_param.rs:13:10 | LL | bar().await; | ^^^^^^ error[E0698]: type inside `async fn` body must be known in this context - --> $DIR/unresolved_type_param.rs:10:5 + --> $DIR/unresolved_type_param.rs:13:5 | LL | bar().await; | ^^^ cannot infer type for type parameter `T` declared on the function `bar` | note: the type is part of the `async fn` body because of this `await` - --> $DIR/unresolved_type_param.rs:10:10 + --> $DIR/unresolved_type_param.rs:13:10 | LL | bar().await; | ^^^^^^ error[E0698]: type inside `async fn` body must be known in this context - --> $DIR/unresolved_type_param.rs:10:5 + --> $DIR/unresolved_type_param.rs:13:5 | LL | bar().await; | ^^^ cannot infer type for type parameter `T` declared on the function `bar` | note: the type is part of the `async fn` body because of this `await` - --> $DIR/unresolved_type_param.rs:10:10 + --> $DIR/unresolved_type_param.rs:13:10 | LL | bar().await; | ^^^^^^ |