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Diffstat (limited to 'src/tools/clippy/src/docs/infallible_destructuring_match.txt')
-rw-r--r-- | src/tools/clippy/src/docs/infallible_destructuring_match.txt | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/tools/clippy/src/docs/infallible_destructuring_match.txt b/src/tools/clippy/src/docs/infallible_destructuring_match.txt new file mode 100644 index 000000000..4b5d3c4ba --- /dev/null +++ b/src/tools/clippy/src/docs/infallible_destructuring_match.txt @@ -0,0 +1,29 @@ +### What it does +Checks for matches being used to destructure a single-variant enum +or tuple struct where a `let` will suffice. + +### Why is this bad? +Just readability – `let` doesn't nest, whereas a `match` does. + +### Example +``` +enum Wrapper { + Data(i32), +} + +let wrapper = Wrapper::Data(42); + +let data = match wrapper { + Wrapper::Data(i) => i, +}; +``` + +The correct use would be: +``` +enum Wrapper { + Data(i32), +} + +let wrapper = Wrapper::Data(42); +let Wrapper::Data(data) = wrapper; +```
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