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Diffstat (limited to 'src/tools/clippy/src/docs/comparison_to_empty.txt')
-rw-r--r-- | src/tools/clippy/src/docs/comparison_to_empty.txt | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/src/tools/clippy/src/docs/comparison_to_empty.txt b/src/tools/clippy/src/docs/comparison_to_empty.txt deleted file mode 100644 index db6f74fe2..000000000 --- a/src/tools/clippy/src/docs/comparison_to_empty.txt +++ /dev/null @@ -1,31 +0,0 @@ -### What it does -Checks for comparing to an empty slice such as `""` or `[]`, -and suggests using `.is_empty()` where applicable. - -### Why is this bad? -Some structures can answer `.is_empty()` much faster -than checking for equality. So it is good to get into the habit of using -`.is_empty()`, and having it is cheap. -Besides, it makes the intent clearer than a manual comparison in some contexts. - -### Example - -``` -if s == "" { - .. -} - -if arr == [] { - .. -} -``` -Use instead: -``` -if s.is_empty() { - .. -} - -if arr.is_empty() { - .. -} -```
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