diff options
Diffstat (limited to 'tests/ui/never_type/issue-44402.rs')
-rw-r--r-- | tests/ui/never_type/issue-44402.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tests/ui/never_type/issue-44402.rs b/tests/ui/never_type/issue-44402.rs new file mode 100644 index 000000000..699e480df --- /dev/null +++ b/tests/ui/never_type/issue-44402.rs @@ -0,0 +1,33 @@ +// check-pass + +#![allow(dead_code)] +#![feature(never_type)] +#![feature(exhaustive_patterns)] + +// Regression test for inhabitedness check. The old +// cache used to cause us to incorrectly decide +// that `test_b` was invalid. + +struct Foo { + field1: !, + field2: Option<&'static Bar>, +} + +struct Bar { + field1: &'static Foo +} + +fn test_a() { + let x: Option<Foo> = None; + match x { None => () } +} + +fn test_b() { + let x: Option<Bar> = None; + match x { + Some(_) => (), + None => () + } +} + +fn main() { } |