[rustc.git] / src / tools / clippy / src / docs / match_ref_pats.txt

### What it does
Checks for matches where all arms match a reference,
suggesting to remove the reference and deref the matched expression
instead. It also checks for `if let &foo = bar` blocks.

### Why is this bad?
It just makes the code less readable. That reference
destructuring adds nothing to the code.

### Example
```
match x {
    &A(ref y) => foo(y),
    &B => bar(),
    _ => frob(&x),
}
```

Use instead:
```
match *x {
    A(ref y) => foo(y),
    B => bar(),
    _ => frob(x),
}
```
Commit	Line	Data
f2b60f7d FG	1	### What it does
	2	Checks for matches where all arms match a reference,
	3	suggesting to remove the reference and deref the matched expression
	4	instead. It also checks for `if let &foo = bar` blocks.
	5
	6	### Why is this bad?
	7	It just makes the code less readable. That reference
	8	destructuring adds nothing to the code.
	9
	10	### Example
	11	```
	12	match x {
	13	&A(ref y) => foo(y),
	14	&B => bar(),
	15	_ => frob(&x),
	16	}
	17	```
	18
	19	Use instead:
	20	```
	21	match *x {
	22	A(ref y) => foo(y),
	23	B => bar(),
	24	_ => frob(x),
	25	}
	26	```