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Diffstat (limited to 'src/tools/clippy/src/docs/len_without_is_empty.txt')
| -rw-r--r-- | src/tools/clippy/src/docs/len_without_is_empty.txt | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/src/tools/clippy/src/docs/len_without_is_empty.txt b/src/tools/clippy/src/docs/len_without_is_empty.txt deleted file mode 100644 index 47a2e8575..000000000 --- a/src/tools/clippy/src/docs/len_without_is_empty.txt +++ /dev/null @@ -1,19 +0,0 @@ -### What it does -Checks for items that implement `.len()` but not -`.is_empty()`. - -### Why is this bad? -It is good custom to have both methods, because for -some data structures, asking about the length will be a costly operation, -whereas `.is_empty()` can usually answer in constant time. Also it used to -lead to false positives on the [`len_zero`](#len_zero) lint – currently that -lint will ignore such entities. - -### Example -``` -impl X { - pub fn len(&self) -> usize { - .. - } -} -```
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