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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/associated-types/associated-types-outlives.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/associated-types/associated-types-outlives.rs')
-rw-r--r-- | src/test/ui/associated-types/associated-types-outlives.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/associated-types/associated-types-outlives.rs b/src/test/ui/associated-types/associated-types-outlives.rs new file mode 100644 index 000000000..55c276280 --- /dev/null +++ b/src/test/ui/associated-types/associated-types-outlives.rs @@ -0,0 +1,28 @@ +// Regression test for issue #24622. The older associated types code +// was erroneously assuming that all projections outlived the current +// fn body, causing this (invalid) code to be accepted. + +pub trait Foo<'a> { + type Bar; +} + +impl<'a, T:'a> Foo<'a> for T { + type Bar = &'a T; +} + +fn denormalise<'a, T>(t: &'a T) -> <T as Foo<'a>>::Bar { + t +} + +pub fn free_and_use<T: for<'a> Foo<'a>, + F: for<'a> FnOnce(<T as Foo<'a>>::Bar)>(x: T, f: F) { + let y; + 'body: loop { // lifetime annotations added for clarity + 's: loop { y = denormalise(&x); break } + drop(x); //~ ERROR cannot move out of `x` because it is borrowed + return f(y); + } +} + +pub fn main() { +} |