diff options
| -rw-r--r-- | src/test/ui/async-await/issues/issue-95307.rs | 13 | ||||
| -rw-r--r-- | src/test/ui/async-await/issues/issue-95307.stderr | 30 |
2 files changed, 43 insertions, 0 deletions
diff --git a/src/test/ui/async-await/issues/issue-95307.rs b/src/test/ui/async-await/issues/issue-95307.rs new file mode 100644 index 00000000000..f7e48070ccd --- /dev/null +++ b/src/test/ui/async-await/issues/issue-95307.rs @@ -0,0 +1,13 @@ +// edition:2018 + +// Regression test for #95307. +// The ICE occurred on all the editions, specifying edition:2018 to reduce diagnostics. + +pub trait C { + async fn new() -> [u8; _]; + //~^ ERROR: functions in traits cannot be declared `async` + //~| ERROR: using `_` for array lengths is unstable + //~| ERROR: in expressions, `_` can only be used on the left-hand side of an assignment +} + +fn main() {} diff --git a/src/test/ui/async-await/issues/issue-95307.stderr b/src/test/ui/async-await/issues/issue-95307.stderr new file mode 100644 index 00000000000..60fca71eb4b --- /dev/null +++ b/src/test/ui/async-await/issues/issue-95307.stderr @@ -0,0 +1,30 @@ +error[E0706]: functions in traits cannot be declared `async` + --> $DIR/issue-95307.rs:7:5 + | +LL | async fn new() -> [u8; _]; + | -----^^^^^^^^^^^^^^^^^^^^^ + | | + | `async` because of this + | + = note: `async` trait functions are not currently supported + = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait + +error[E0658]: using `_` for array lengths is unstable + --> $DIR/issue-95307.rs:7:28 + | +LL | async fn new() -> [u8; _]; + | ^ + | + = note: see issue #85077 <https://github.com/rust-lang/rust/issues/85077> for more information + = help: add `#![feature(generic_arg_infer)]` to the crate attributes to enable + +error: in expressions, `_` can only be used on the left-hand side of an assignment + --> $DIR/issue-95307.rs:7:28 + | +LL | async fn new() -> [u8; _]; + | ^ `_` not allowed here + +error: aborting due to 3 previous errors + +Some errors have detailed explanations: E0658, E0706. +For more information about an error, try `rustc --explain E0658`. |