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Diffstat (limited to 'tests/ui/nll/trait-associated-constant.rs')
-rw-r--r-- | tests/ui/nll/trait-associated-constant.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/nll/trait-associated-constant.rs b/tests/ui/nll/trait-associated-constant.rs new file mode 100644 index 000000000..e13ae80f9 --- /dev/null +++ b/tests/ui/nll/trait-associated-constant.rs @@ -0,0 +1,31 @@ +// Test cases where we put various lifetime constraints on trait +// associated constants. + +#![feature(rustc_attrs)] + +use std::option::Option; + +trait Anything<'a: 'b, 'b> { + const AC: Option<&'b str>; +} + +struct OKStruct1 { } + +impl<'a: 'b, 'b> Anything<'a, 'b> for OKStruct1 { + const AC: Option<&'b str> = None; +} + +struct FailStruct { } + +impl<'a: 'b, 'b, 'c> Anything<'a, 'b> for FailStruct { + const AC: Option<&'c str> = None; + //~^ ERROR: const not compatible with trait +} + +struct OKStruct2 { } + +impl<'a: 'b, 'b> Anything<'a, 'b> for OKStruct2 { + const AC: Option<&'a str> = None; +} + +fn main() {} |