diff options
| -rw-r--r-- | src/test/ui/async-await/issues/issue-102206.rs | 8 | ||||
| -rw-r--r-- | src/test/ui/async-await/issues/issue-102206.stderr | 23 |
2 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/async-await/issues/issue-102206.rs b/src/test/ui/async-await/issues/issue-102206.rs new file mode 100644 index 00000000000..a3a2ebc5896 --- /dev/null +++ b/src/test/ui/async-await/issues/issue-102206.rs @@ -0,0 +1,8 @@ +// edition:2021 + +async fn foo() {} + +fn main() { + std::mem::size_of_val(foo()); + //~^ ERROR: mismatched types +} diff --git a/src/test/ui/async-await/issues/issue-102206.stderr b/src/test/ui/async-await/issues/issue-102206.stderr new file mode 100644 index 00000000000..2ab790ac761 --- /dev/null +++ b/src/test/ui/async-await/issues/issue-102206.stderr @@ -0,0 +1,23 @@ +error[E0308]: mismatched types + --> $DIR/issue-102206.rs:6:27 + | +LL | std::mem::size_of_val(foo()); + | --------------------- ^^^^^ + | | | + | | expected reference, found opaque type + | | 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 + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. |