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Add test

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This commit is contained in:
Nadrieril 2020-10-20 19:32:59 +01:00
parent b202532608
commit 03f0ca0cf4
2 changed files with 11 additions and 4 deletions
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11
src/test/ui/or-patterns/exhaustiveness-unreachable-pattern.rs
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@ -77,10 +77,17 @@ fn main() {
(false | true, false | true) => {}
}
match (true, true) {
(true, false) => {}
(false, true) => {}
(true, true) => {}
(false, false) => {}
(false | true, false | true) => {}
}
// https://github.com/rust-lang/rust/issues/76836
match None {
Some(false) => {}
None | Some(true
| false) => {} // expected unreachable warning here
}
// A subpattern that is unreachable in all branches is overall unreachable.
match (true, true) {
(false, true) => {}

4
src/test/ui/or-patterns/exhaustiveness-unreachable-pattern.stderr
View file

@ -101,13 +101,13 @@ LL | Some(0
| ^
error: unreachable pattern
--> $DIR/exhaustiveness-unreachable-pattern.rs:89:15
--> $DIR/exhaustiveness-unreachable-pattern.rs:96:15
|
LL | | true) => {}
| ^^^^
error: unreachable pattern
--> $DIR/exhaustiveness-unreachable-pattern.rs:95:15
--> $DIR/exhaustiveness-unreachable-pattern.rs:102:15
|
LL | | true,
| ^^^^