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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/coherence/coherence-projection-conflict-orphan.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/coherence/coherence-projection-conflict-orphan.rs')
-rw-r--r-- | tests/ui/coherence/coherence-projection-conflict-orphan.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tests/ui/coherence/coherence-projection-conflict-orphan.rs b/tests/ui/coherence/coherence-projection-conflict-orphan.rs new file mode 100644 index 000000000..637dd2506 --- /dev/null +++ b/tests/ui/coherence/coherence-projection-conflict-orphan.rs @@ -0,0 +1,19 @@ +#![feature(rustc_attrs)] + +// Here we expect a coherence conflict because, even though `i32` does +// not implement `Iterator`, we cannot rely on that negative reasoning +// due to the orphan rules. Therefore, `A::Item` may yet turn out to +// be `i32`. + +pub trait Foo<P> { fn foo() {} } + +pub trait Bar { + type Output: 'static; +} + +impl Foo<i32> for i32 { } + +impl<A:Iterator> Foo<A::Item> for A { } +//~^ ERROR E0119 + +fn main() {} |