diff options
Diffstat (limited to 'src/test/ui/consts/miri_unleashed/feature-gate-unleash_the_miri_inside_of_you.rs')
-rw-r--r-- | src/test/ui/consts/miri_unleashed/feature-gate-unleash_the_miri_inside_of_you.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/consts/miri_unleashed/feature-gate-unleash_the_miri_inside_of_you.rs b/src/test/ui/consts/miri_unleashed/feature-gate-unleash_the_miri_inside_of_you.rs new file mode 100644 index 000000000..8b17f6885 --- /dev/null +++ b/src/test/ui/consts/miri_unleashed/feature-gate-unleash_the_miri_inside_of_you.rs @@ -0,0 +1,28 @@ +#![allow(const_err)] + +// a test demonstrating why we do need to run static const qualification on associated constants +// instead of just checking the final constant + +trait Foo<T> { + const X: T; +} + +trait Bar<T, U: Foo<T>> { + const F: u32 = (U::X, 42).1; //~ ERROR destructors cannot be evaluated at compile-time +} + +impl Foo<u32> for () { + const X: u32 = 42; +} + +impl Foo<Vec<u32>> for String { + const X: Vec<u32> = Vec::new(); +} + +impl Bar<u32, ()> for () {} +impl Bar<Vec<u32>, String> for String {} + +fn main() { + let x = <() as Bar<u32, ()>>::F; + let y = <String as Bar<Vec<u32>, String>>::F; +} |