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-rw-r--r--src/test/ui/issues/issue-25497.rs19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-25497.rs b/src/test/ui/issues/issue-25497.rs
new file mode 100644
index 000000000..25f5ab90f
--- /dev/null
+++ b/src/test/ui/issues/issue-25497.rs
@@ -0,0 +1,19 @@
+// run-pass
+#[derive(Clone, Debug, PartialEq)]
+enum Expression {
+ Dummy,
+ Add(Box<Expression>),
+}
+
+use Expression::*;
+
+fn simplify(exp: Expression) -> Expression {
+ match exp {
+ Add(n) => *n.clone(),
+ _ => Dummy
+ }
+}
+
+fn main() {
+ assert_eq!(simplify(Add(Box::new(Dummy))), Dummy);
+}