diff options
Diffstat (limited to 'tests/ui/borrowck/let_underscore_temporary.rs')
-rw-r--r-- | tests/ui/borrowck/let_underscore_temporary.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/ui/borrowck/let_underscore_temporary.rs b/tests/ui/borrowck/let_underscore_temporary.rs new file mode 100644 index 000000000..37b5c5d9d --- /dev/null +++ b/tests/ui/borrowck/let_underscore_temporary.rs @@ -0,0 +1,27 @@ +// check-pass + +fn let_underscore(string: &Option<&str>, mut num: Option<i32>) { + let _ = if let Some(s) = *string { s.len() } else { 0 }; + let _ = if let Some(s) = &num { s } else { &0 }; + let _ = if let Some(s) = &mut num { + *s += 1; + s + } else { + &mut 0 + }; + let _ = if let Some(ref s) = num { s } else { &0 }; + let _ = if let Some(mut s) = num { + s += 1; + s + } else { + 0 + }; + let _ = if let Some(ref mut s) = num { + *s += 1; + s + } else { + &mut 0 + }; +} + +fn main() {} |