diff options
Diffstat (limited to 'src/test/ui/regions/regions-infer-bound-from-trait.rs')
-rw-r--r-- | src/test/ui/regions/regions-infer-bound-from-trait.rs | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/src/test/ui/regions/regions-infer-bound-from-trait.rs b/src/test/ui/regions/regions-infer-bound-from-trait.rs deleted file mode 100644 index 610452182..000000000 --- a/src/test/ui/regions/regions-infer-bound-from-trait.rs +++ /dev/null @@ -1,40 +0,0 @@ -// Test that we can derive lifetime bounds on type parameters -// from trait inheritance. - -trait Static : 'static { } - -trait Is<'a> : 'a { } - -struct Inv<'a> { - x: Option<&'a mut &'a isize> -} - -fn check_bound<'a,A:'a>(x: Inv<'a>, a: A) { } - -// In all of these cases, we can derive a bound for A that is longer -// than 'a based on the trait bound of A: - -fn foo1<'a,A:Static>(x: Inv<'a>, a: A) { - check_bound(x, a) -} - -fn foo2<'a,A:Static>(x: Inv<'static>, a: A) { - check_bound(x, a) -} - -fn foo3<'a,A:Is<'a>>(x: Inv<'a>, a: A) { - check_bound(x, a) -} - -// In these cases, there is no trait bound, so we cannot derive any -// bound for A and we get an error: - -fn bar1<'a,A>(x: Inv<'a>, a: A) { - check_bound(x, a) //~ ERROR parameter type `A` may not live long enough -} - -fn bar2<'a,'b,A:Is<'b>>(x: Inv<'a>, y: Inv<'b>, a: A) { - check_bound(x, a) //~ ERROR parameter type `A` may not live long enough -} - -fn main() { } |