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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/neg_multiply.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/neg_multiply.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/neg_multiply.rs | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/neg_multiply.rs b/src/tools/clippy/tests/ui/neg_multiply.rs new file mode 100644 index 000000000..581290dc7 --- /dev/null +++ b/src/tools/clippy/tests/ui/neg_multiply.rs @@ -0,0 +1,48 @@ +// run-rustfix +#![warn(clippy::neg_multiply)] +#![allow(clippy::no_effect, clippy::unnecessary_operation, clippy::precedence)] +#![allow(unused)] + +use std::ops::Mul; + +struct X; + +impl Mul<isize> for X { + type Output = X; + + fn mul(self, _r: isize) -> Self { + self + } +} + +impl Mul<X> for isize { + type Output = X; + + fn mul(self, _r: X) -> X { + X + } +} + +fn main() { + let x = 0; + + x * -1; + + -1 * x; + + 100 + x * -1; + + (100 + x) * -1; + + -1 * 17; + + 0xcafe | 0xff00 * -1; + + 3_usize as i32 * -1; + (3_usize as i32) * -1; + + -1 * -1; // should be ok + + X * -1; // should be ok + -1 * X; // should also be ok +} |