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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/get_last_with_len.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/get_last_with_len.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/get_last_with_len.rs | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/get_last_with_len.rs b/src/tools/clippy/tests/ui/get_last_with_len.rs new file mode 100644 index 000000000..d63a731bd --- /dev/null +++ b/src/tools/clippy/tests/ui/get_last_with_len.rs @@ -0,0 +1,49 @@ +// run-rustfix + +#![warn(clippy::get_last_with_len)] +#![allow(unused)] + +use std::collections::VecDeque; + +fn dont_use_last() { + let x = vec![2, 3, 5]; + let _ = x.get(x.len() - 1); +} + +fn indexing_two_from_end() { + let x = vec![2, 3, 5]; + let _ = x.get(x.len() - 2); +} + +fn index_into_last() { + let x = vec![2, 3, 5]; + let _ = x[x.len() - 1]; +} + +fn use_last_with_different_vec_length() { + let x = vec![2, 3, 5]; + let y = vec!['a', 'b', 'c']; + let _ = x.get(y.len() - 1); +} + +struct S { + field: Vec<usize>, +} + +fn in_field(s: &S) { + let _ = s.field.get(s.field.len() - 1); +} + +fn main() { + let slice = &[1, 2, 3]; + let _ = slice.get(slice.len() - 1); + + let array = [4, 5, 6]; + let _ = array.get(array.len() - 1); + + let deq = VecDeque::from([7, 8, 9]); + let _ = deq.get(deq.len() - 1); + + let nested = [[1]]; + let _ = nested[0].get(nested[0].len() - 1); +} |