diff options
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/tools/clippy/tests/ui/redundant_slicing.fixed | |
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/redundant_slicing.fixed')
-rw-r--r-- | src/tools/clippy/tests/ui/redundant_slicing.fixed | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/redundant_slicing.fixed b/src/tools/clippy/tests/ui/redundant_slicing.fixed new file mode 100644 index 000000000..8dd8d3092 --- /dev/null +++ b/src/tools/clippy/tests/ui/redundant_slicing.fixed @@ -0,0 +1,46 @@ +// run-rustfix + +#![allow(unused, clippy::deref_by_slicing)] +#![warn(clippy::redundant_slicing)] + +use std::io::Read; + +fn main() { + let slice: &[u32] = &[0]; + let _ = slice; // Redundant slice + + let v = vec![0]; + let _ = &v[..]; // Ok, results in `&[_]` + let _ = (&*v); // Outer borrow is redundant + + static S: &[u8] = &[0, 1, 2]; + let _ = &mut &S[..]; // Ok, re-borrows slice + + let mut vec = vec![0]; + let mut_slice = &mut vec[..]; // Ok, results in `&mut [_]` + let _ = &mut mut_slice[..]; // Ok, re-borrows slice + + let ref_vec = &vec; + let _ = &ref_vec[..]; // Ok, results in `&[_]` + + macro_rules! m { + ($e:expr) => { + $e + }; + } + let _ = slice; + + macro_rules! m2 { + ($e:expr) => { + &$e[..] + }; + } + let _ = m2!(slice); // Don't lint in a macro + + let slice_ref = &slice; + let _ = &slice_ref[..]; // Ok, derefs slice + + // Issue #7972 + let bytes: &[u8] = &[]; + let _ = (&bytes[..]).read_to_end(&mut vec![]).unwrap(); // Ok, re-borrows slice +} |