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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/tools/clippy/tests/ui/forget_ref.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/tools/clippy/tests/ui/forget_ref.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/forget_ref.rs | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/forget_ref.rs b/src/tools/clippy/tests/ui/forget_ref.rs new file mode 100644 index 000000000..031b415f5 --- /dev/null +++ b/src/tools/clippy/tests/ui/forget_ref.rs @@ -0,0 +1,50 @@ +#![warn(clippy::forget_ref)] +#![allow(clippy::toplevel_ref_arg)] +#![allow(clippy::unnecessary_wraps, clippy::forget_non_drop)] +#![allow(clippy::borrow_deref_ref)] + +use std::mem::forget; + +struct SomeStruct; + +fn main() { + forget(&SomeStruct); + + let mut owned = SomeStruct; + forget(&owned); + forget(&&owned); + forget(&mut owned); + forget(owned); //OK + + let reference1 = &SomeStruct; + forget(&*reference1); + + let reference2 = &mut SomeStruct; + forget(reference2); + + let ref reference3 = SomeStruct; + forget(reference3); +} + +#[allow(dead_code)] +fn test_generic_fn_forget<T>(val: T) { + forget(&val); + forget(val); //OK +} + +#[allow(dead_code)] +fn test_similarly_named_function() { + fn forget<T>(_val: T) {} + forget(&SomeStruct); //OK; call to unrelated function which happens to have the same name + std::mem::forget(&SomeStruct); +} + +#[derive(Copy, Clone)] +pub struct Error; +fn produce_half_owl_error() -> Result<(), Error> { + Ok(()) +} + +fn produce_half_owl_ok() -> Result<bool, ()> { + Ok(true) +} |