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| -rw-r--r-- | src/tools/clippy/src/docs/redundant_slicing.txt | 24 |
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diff --git a/src/tools/clippy/src/docs/redundant_slicing.txt b/src/tools/clippy/src/docs/redundant_slicing.txt new file mode 100644 index 000000000..6798911ed --- /dev/null +++ b/src/tools/clippy/src/docs/redundant_slicing.txt @@ -0,0 +1,24 @@ +### What it does +Checks for redundant slicing expressions which use the full range, and +do not change the type. + +### Why is this bad? +It unnecessarily adds complexity to the expression. + +### Known problems +If the type being sliced has an implementation of `Index<RangeFull>` +that actually changes anything then it can't be removed. However, this would be surprising +to people reading the code and should have a note with it. + +### Example +``` +fn get_slice(x: &[u32]) -> &[u32] { + &x[..] +} +``` +Use instead: +``` +fn get_slice(x: &[u32]) -> &[u32] { + x +} +```
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