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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/traits/trait-upcasting/type-checking-test-3.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/traits/trait-upcasting/type-checking-test-3.rs b/src/test/ui/traits/trait-upcasting/type-checking-test-3.rs new file mode 100644 index 000000000..b3aa2279a --- /dev/null +++ b/src/test/ui/traits/trait-upcasting/type-checking-test-3.rs @@ -0,0 +1,21 @@ +#![feature(trait_upcasting)] +#![allow(incomplete_features)] + +trait Foo<'a>: Bar<'a> {} +trait Bar<'a> {} + +fn test_correct(x: &dyn Foo<'static>) { + let _ = x as &dyn Bar<'static>; +} + +fn test_wrong1<'a>(x: &dyn Foo<'static>, y: &'a u32) { + let _ = x as &dyn Bar<'a>; // Error + //~^ ERROR lifetime may not live long enough +} + +fn test_wrong2<'a>(x: &dyn Foo<'a>) { + let _ = x as &dyn Bar<'static>; // Error + //~^ ERROR lifetime may not live long enough +} + +fn main() {} |