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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/nll/issue-47470.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/nll/issue-47470.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/nll/issue-47470.rs b/src/test/ui/nll/issue-47470.rs new file mode 100644 index 000000000..72ee7f886 --- /dev/null +++ b/src/test/ui/nll/issue-47470.rs @@ -0,0 +1,22 @@ +// Regression test for #47470: cached results of projections were +// causing region relations not to be enforced at all the places where +// they have to be enforced. + +struct Foo<'a>(&'a ()); +trait Bar { + type Assoc; + fn get(self) -> Self::Assoc; +} + +impl<'a> Bar for Foo<'a> { + type Assoc = &'a u32; + fn get(self) -> Self::Assoc { + let local = 42; + &local //~ ERROR cannot return reference to local variable `local` + } +} + +fn main() { + let f = Foo(&()).get(); + println!("{}", f); +} |