bjoernager/rust
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Fix false lint warnings in match arms with multiple patterns

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fixing #13866
This commit is contained in:
Falco Hirschenberger 2014-05-08 21:48:45 +02:00
parent e454851813
commit de92d42d4c
2 changed files with 67 additions and 21 deletions
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16
src/test/compile-fail/lint-unused-mut-variables.rs
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@ -28,6 +28,13 @@ fn main() {
match 30 {
mut x => {} //~ ERROR: variable does not need to be mutable
}
match (30, 2) {
(mut x, 1) | //~ ERROR: variable does not need to be mutable
(mut x, 2) |
(mut x, 3) => {
}
_ => {}
}
let x = |mut y: int| 10; //~ ERROR: variable does not need to be mutable
fn what(mut foo: int) {} //~ ERROR: variable does not need to be mutable
@ -50,6 +57,15 @@ fn main() {
}
}
match (30, 2) {
(mut x, 1) |
(mut x, 2) |
(mut x, 3) => {
x = 21
}
_ => {}
}
let x = |mut y: int| y = 32;
fn nothing(mut foo: int) { foo = 37; }