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Diffstat (limited to 'tests/ui/const-generics/const-param-in-async.rs')
-rw-r--r-- | tests/ui/const-generics/const-param-in-async.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/const-generics/const-param-in-async.rs b/tests/ui/const-generics/const-param-in-async.rs new file mode 100644 index 000000000..f823431e6 --- /dev/null +++ b/tests/ui/const-generics/const-param-in-async.rs @@ -0,0 +1,31 @@ +// edition:2018 +// check-pass + +async fn foo<const N: usize>(arg: [u8; N]) -> usize { arg.len() } + +async fn bar<const N: usize>() -> [u8; N] { + [0; N] +} + +trait Trait<const N: usize> { + fn fynn(&self) -> usize; +} +impl<const N: usize> Trait<N> for [u8; N] { + fn fynn(&self) -> usize { + N + } +} +async fn baz<const N: usize>() -> impl Trait<N> { + [0; N] +} + +async fn biz<const N: usize>(v: impl Trait<N>) -> usize { + v.fynn() +} + +async fn user<const N: usize>() { + let _ = foo::<N>(bar().await).await; + let _ = biz(baz::<N>().await).await; +} + +fn main() { } |