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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
| commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
| tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/interior-mutability | |
| 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/interior-mutability')
| -rw-r--r-- | src/test/ui/interior-mutability/interior-mutability.rs | 7 | ||||
| -rw-r--r-- | src/test/ui/interior-mutability/interior-mutability.stderr | 23 |
2 files changed, 30 insertions, 0 deletions
diff --git a/src/test/ui/interior-mutability/interior-mutability.rs b/src/test/ui/interior-mutability/interior-mutability.rs new file mode 100644 index 000000000..c704acc22 --- /dev/null +++ b/src/test/ui/interior-mutability/interior-mutability.rs @@ -0,0 +1,7 @@ +use std::cell::Cell; +use std::panic::catch_unwind; +fn main() { + let mut x = Cell::new(22); + catch_unwind(|| { x.set(23); }); + //~^ ERROR the type `UnsafeCell<i32>` may contain interior mutability and a +} diff --git a/src/test/ui/interior-mutability/interior-mutability.stderr b/src/test/ui/interior-mutability/interior-mutability.stderr new file mode 100644 index 000000000..349fb6daf --- /dev/null +++ b/src/test/ui/interior-mutability/interior-mutability.stderr @@ -0,0 +1,23 @@ +error[E0277]: the type `UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary + --> $DIR/interior-mutability.rs:5:5 + | +LL | catch_unwind(|| { x.set(23); }); + | ^^^^^^^^^^^^ `UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary + | + = help: within `Cell<i32>`, the trait `RefUnwindSafe` is not implemented for `UnsafeCell<i32>` + = note: required because it appears within the type `Cell<i32>` + = note: required because of the requirements on the impl of `UnwindSafe` for `&Cell<i32>` +note: required because it's used within this closure + --> $DIR/interior-mutability.rs:5:18 + | +LL | catch_unwind(|| { x.set(23); }); + | ^^ +note: required by a bound in `catch_unwind` + --> $SRC_DIR/std/src/panic.rs:LL:COL + | +LL | pub fn catch_unwind<F: FnOnce() -> R + UnwindSafe, R>(f: F) -> Result<R> { + | ^^^^^^^^^^ required by this bound in `catch_unwind` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. |