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Diffstat (limited to 'src/test/ui/binding/match-reassign.rs')
-rw-r--r-- | src/test/ui/binding/match-reassign.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/binding/match-reassign.rs b/src/test/ui/binding/match-reassign.rs new file mode 100644 index 000000000..19b48579c --- /dev/null +++ b/src/test/ui/binding/match-reassign.rs @@ -0,0 +1,21 @@ +// run-pass +// Regression test for #23698: The reassignment checker only cared +// about the last assignment in a match arm body + +// Use an extra function to make sure no extra assignments +// are introduced by macros in the match statement +fn check_eq(x: i32, y: i32) { + assert_eq!(x, y); +} + +#[allow(unused_assignments)] +fn main() { + let mut x = Box::new(1); + match x { + y => { + x = Box::new(2); + let _tmp = 1; // This assignment used to throw off the reassignment checker + check_eq(*y, 1); + } + } +} |