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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/traits/issue-23003.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 '')
-rw-r--r-- | src/test/ui/traits/issue-23003.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/traits/issue-23003.rs b/src/test/ui/traits/issue-23003.rs new file mode 100644 index 000000000..24c2b2ad6 --- /dev/null +++ b/src/test/ui/traits/issue-23003.rs @@ -0,0 +1,32 @@ +// run-pass +// Test stack overflow triggered by evaluating the implications. To be +// WF, the type `Receipt<Complete>` would require that `<Complete as +// Async>::Cancel` be WF. This normalizes to `Receipt<Complete>` +// again, leading to an infinite cycle. Issue #23003. + +// pretty-expanded FIXME #23616 + +#![allow(dead_code)] +#![allow(unused_variables)] + +use std::marker::PhantomData; + +trait Async { + type Cancel; +} + +struct Receipt<A:Async> { + marker: PhantomData<A>, +} + +struct Complete { + core: Option<()>, +} + +impl Async for Complete { + type Cancel = Receipt<Complete>; +} + +fn foo(r: Receipt<Complete>) { } + +fn main() { } |