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add a test for ICE #112822 #119255

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Dec 23, 2023
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Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
#![feature(const_trait_impl, effects)]

const fn test() -> impl ~const Fn() { //~ ERROR ~const can only be applied to `#[const_trait]` traits
const move || { //~ ERROR const closures are experimental
let sl: &[u8] = b"foo";

match sl {
[first, remainder @ ..] => {
assert_eq!(first, &b'f');
}
[] => panic!(),
}
}
}

fn main() {}
Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
error[E0658]: const closures are experimental
--> $DIR/ice-112822-expected-type-for-param.rs:4:5
|
LL | const move || {
| ^^^^^
|
= note: see issue #106003 <https://github.com/rust-lang/rust/issues/106003> for more information
= help: add `#![feature(const_closures)]` to the crate attributes to enable

error: ~const can only be applied to `#[const_trait]` traits
--> $DIR/ice-112822-expected-type-for-param.rs:3:32
|
LL | const fn test() -> impl ~const Fn() {
| ^^^^

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0658`.