diff options
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/generic-associated-types/shadowing.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/generic-associated-types/shadowing.rs b/src/test/ui/generic-associated-types/shadowing.rs new file mode 100644 index 000000000..2a9763457 --- /dev/null +++ b/src/test/ui/generic-associated-types/shadowing.rs @@ -0,0 +1,31 @@ +#![feature(generic_associated_types)] + +trait Shadow<'a> { + type Bar<'a>; + //~^ ERROR lifetime name `'a` shadows a lifetime name that is already in scope +} + +trait NoShadow<'a> { + type Bar<'b>; // OK +} + +impl<'a> NoShadow<'a> for &'a u32 { + type Bar<'a> = i32; + //~^ ERROR lifetime name `'a` shadows a lifetime name that is already in scope +} + +trait ShadowT<T> { + type Bar<T>; + //~^ ERROR the name `T` is already used +} + +trait NoShadowT<T> { + type Bar<U>; // OK +} + +impl<T> NoShadowT<T> for Option<T> { + type Bar<T> = i32; + //~^ ERROR the name `T` is already used +} + +fn main() {} |