diff options
Diffstat (limited to 'tests/ui/higher-rank-trait-bounds/hrtb-just-for-static.rs')
-rw-r--r-- | tests/ui/higher-rank-trait-bounds/hrtb-just-for-static.rs | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/tests/ui/higher-rank-trait-bounds/hrtb-just-for-static.rs b/tests/ui/higher-rank-trait-bounds/hrtb-just-for-static.rs deleted file mode 100644 index 8fb4218f8..000000000 --- a/tests/ui/higher-rank-trait-bounds/hrtb-just-for-static.rs +++ /dev/null @@ -1,35 +0,0 @@ -// Test a case where you have an impl of `Foo<X>` for all `X` that -// is being applied to `for<'a> Foo<&'a mut X>`. Issue #19730. - -trait Foo<X> { - fn foo(&self, x: X) { } -} - -fn want_hrtb<T>() - where T : for<'a> Foo<&'a isize> -{ -} - -// AnyInt implements Foo<&'a isize> for any 'a, so it is a match. -struct AnyInt; -impl<'a> Foo<&'a isize> for AnyInt { } -fn give_any() { - want_hrtb::<AnyInt>() -} - -// StaticInt only implements Foo<&'static isize>, so it is an error. -struct StaticInt; -impl Foo<&'static isize> for StaticInt { } -fn give_static() { - want_hrtb::<StaticInt>() //~ ERROR -} - -// &'a u32 only implements Foo<&'a isize> for specific 'a, so it is an error. -impl<'a> Foo<&'a isize> for &'a u32 { } -fn give_some<'a>() { - want_hrtb::<&'a u32>() - //~^ ERROR lifetime may not live long enough - //~| ERROR implementation of `Foo` is not general enough -} - -fn main() { } |