diff options
Diffstat (limited to 'tests/ui/issues/issue-15571.rs')
-rw-r--r-- | tests/ui/issues/issue-15571.rs | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/tests/ui/issues/issue-15571.rs b/tests/ui/issues/issue-15571.rs new file mode 100644 index 000000000..5f228b286 --- /dev/null +++ b/tests/ui/issues/issue-15571.rs @@ -0,0 +1,57 @@ +// run-pass + +fn match_on_local() { + let mut foo: Option<Box<_>> = Some(Box::new(5)); + match foo { + None => {}, + Some(x) => { + foo = Some(x); + } + } + println!("'{}'", foo.unwrap()); +} + +fn match_on_arg(mut foo: Option<Box<i32>>) { + match foo { + None => {} + Some(x) => { + foo = Some(x); + } + } + println!("'{}'", foo.unwrap()); +} + +fn match_on_binding() { + match Some(Box::new(7)) { + mut foo => { + match foo { + None => {}, + Some(x) => { + foo = Some(x); + } + } + println!("'{}'", foo.unwrap()); + } + } +} + +fn match_on_upvar() { + let mut foo: Option<Box<_>> = Some(Box::new(8)); + let f = move|| { + match foo { + None => {}, + Some(x) => { + foo = Some(x); + } + } + println!("'{}'", foo.unwrap()); + }; + f(); +} + +fn main() { + match_on_local(); + match_on_arg(Some(Box::new(6))); + match_on_binding(); + match_on_upvar(); +} |