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Diffstat (limited to 'src/tools/clippy/src/docs/needless_match.txt')
-rw-r--r-- | src/tools/clippy/src/docs/needless_match.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/tools/clippy/src/docs/needless_match.txt b/src/tools/clippy/src/docs/needless_match.txt new file mode 100644 index 000000000..92b40a5df --- /dev/null +++ b/src/tools/clippy/src/docs/needless_match.txt @@ -0,0 +1,36 @@ +### What it does +Checks for unnecessary `match` or match-like `if let` returns for `Option` and `Result` +when function signatures are the same. + +### Why is this bad? +This `match` block does nothing and might not be what the coder intended. + +### Example +``` +fn foo() -> Result<(), i32> { + match result { + Ok(val) => Ok(val), + Err(err) => Err(err), + } +} + +fn bar() -> Option<i32> { + if let Some(val) = option { + Some(val) + } else { + None + } +} +``` + +Could be replaced as + +``` +fn foo() -> Result<(), i32> { + result +} + +fn bar() -> Option<i32> { + option +} +```
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