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-rw-r--r-- | src/tools/clippy/src/docs/explicit_counter_loop.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/tools/clippy/src/docs/explicit_counter_loop.txt b/src/tools/clippy/src/docs/explicit_counter_loop.txt new file mode 100644 index 000000000..2661a43e1 --- /dev/null +++ b/src/tools/clippy/src/docs/explicit_counter_loop.txt @@ -0,0 +1,21 @@ +### What it does +Checks `for` loops over slices with an explicit counter +and suggests the use of `.enumerate()`. + +### Why is this bad? +Using `.enumerate()` makes the intent more clear, +declutters the code and may be faster in some instances. + +### Example +``` +let mut i = 0; +for item in &v { + bar(i, *item); + i += 1; +} +``` + +Use instead: +``` +for (i, item) in v.iter().enumerate() { bar(i, *item); } +```
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