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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/borrowck/mut-borrow-in-loop-2.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/borrowck/mut-borrow-in-loop-2.rs')
-rw-r--r-- | src/test/ui/borrowck/mut-borrow-in-loop-2.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/mut-borrow-in-loop-2.rs b/src/test/ui/borrowck/mut-borrow-in-loop-2.rs new file mode 100644 index 000000000..d13fb7e56 --- /dev/null +++ b/src/test/ui/borrowck/mut-borrow-in-loop-2.rs @@ -0,0 +1,35 @@ +// run-rustfix +#![allow(dead_code)] + +struct Events<R>(R); + +struct Other; + +pub trait Trait<T> { + fn handle(value: T) -> Self; +} + +// Blanket impl. (If you comment this out, compiler figures out that it +// is passing an `&mut` to a method that must be expecting an `&mut`, +// and injects an auto-reborrow.) +impl<T, U> Trait<U> for T where T: From<U> { + fn handle(_: U) -> Self { unimplemented!() } +} + +impl<'a, R> Trait<&'a mut Events<R>> for Other { + fn handle(_: &'a mut Events<R>) -> Self { unimplemented!() } +} + +fn this_compiles<'a, R>(value: &'a mut Events<R>) { + for _ in 0..3 { + Other::handle(&mut *value); + } +} + +fn this_does_not<'a, R>(value: &'a mut Events<R>) { + for _ in 0..3 { + Other::handle(value); //~ ERROR use of moved value: `value` + } +} + +fn main() {} |