mirror of https://github.com/rust-lang/rust
25 lines
452 B
Rust
25 lines
452 B
Rust
#![deny(unreachable_code)]
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#![allow(dead_code)]
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#![feature(never_type)]
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fn foo(x: !) -> bool {
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// Explicit matches on the never type are unwarned.
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match x {}
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// But matches in unreachable code are warned.
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match x {} //~ ERROR unreachable expression
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}
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fn bar() {
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match (return) {
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() => () //~ ERROR unreachable arm
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}
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}
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fn main() {
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return;
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match () { //~ ERROR unreachable expression
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() => (),
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}
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}
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