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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/regions/regions-outlives-projection-trait-def.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/regions/regions-outlives-projection-trait-def.rs')
-rw-r--r-- | src/test/ui/regions/regions-outlives-projection-trait-def.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-outlives-projection-trait-def.rs b/src/test/ui/regions/regions-outlives-projection-trait-def.rs new file mode 100644 index 000000000..5c37a585a --- /dev/null +++ b/src/test/ui/regions/regions-outlives-projection-trait-def.rs @@ -0,0 +1,21 @@ +// Test that `<F as Foo<'a>>::Type: 'b`, where `trait Foo<'a> { Type: +// 'a; }`, does not require that `F: 'b`. + +// check-pass +#![allow(dead_code)] + +trait SomeTrait<'a> { + type Type: 'a; +} + +impl<'a: 'c, 'c, T> SomeTrait<'a> for &'c T where T: SomeTrait<'a> { + type Type = <T as SomeTrait<'a>>::Type; + // ~~~~~~~~~~~~~~~~~~~~~~~~~~ + // | + // Note that this type must outlive 'a, due to the trait + // definition. If we fall back to OutlivesProjectionComponents + // here, then we would require that `T:'a`, which is too strong. +} + + +fn main() { } |