5f021e0023
This commit extends existing suggestions to prefix unused variable bindings in match arms with an underscore so that it applies to all patterns in a match arm.
45 lines
895 B
Rust
45 lines
895 B
Rust
#![allow(dead_code)]
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#![deny(unused_variables)]
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// This test aims to check that unused variable suggestions update bindings in all
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// match arms.
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fn main() {
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enum E {
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A(i32,),
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B(i32,),
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}
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match E::A(1) {
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E::A(x) | E::B(x) => {}
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//~^ ERROR unused variable: `x`
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}
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enum F {
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A(i32, i32,),
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B(i32, i32,),
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C(i32, i32,),
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}
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let _ = match F::A(1, 2) {
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F::A(x, y) | F::B(x, y) => { y },
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//~^ ERROR unused variable: `x`
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F::C(a, b) => { 3 }
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//~^ ERROR unused variable: `a`
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//~^^ ERROR unused variable: `b`
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};
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let _ = if let F::A(x, y) | F::B(x, y) = F::A(1, 2) {
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//~^ ERROR unused variable: `x`
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y
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} else {
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3
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};
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while let F::A(x, y) | F::B(x, y) = F::A(1, 2) {
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//~^ ERROR unused variable: `x`
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let _ = y;
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break;
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}
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}
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