diff options
Diffstat (limited to 'tests/ui/or-patterns/if-let-while-let.rs')
-rw-r--r-- | tests/ui/or-patterns/if-let-while-let.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/or-patterns/if-let-while-let.rs b/tests/ui/or-patterns/if-let-while-let.rs new file mode 100644 index 000000000..92a1bb256 --- /dev/null +++ b/tests/ui/or-patterns/if-let-while-let.rs @@ -0,0 +1,20 @@ +// Check that or patterns are lowered correctly in `if let` and `while let` expressions. +// run-pass + +fn main() { + let mut opt = Some(3); + let mut w = Vec::new(); + while let Some(ref mut val @ (3 | 4 | 6)) = opt { + w.push(*val); + *val += 1; + } + assert_eq!(w, [3, 4]); + if let &(None | Some(6 | 7)) = &opt { + unreachable!(); + } + if let Some(x @ (4 | 5 | 6)) = opt { + assert_eq!(x, 5); + } else { + unreachable!(); + } +} |