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-rw-r--r--src/test/ui/borrowck/borrowck-fn-in-const-c.rs23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/borrowck-fn-in-const-c.rs b/src/test/ui/borrowck/borrowck-fn-in-const-c.rs
new file mode 100644
index 000000000..c638cd08b
--- /dev/null
+++ b/src/test/ui/borrowck/borrowck-fn-in-const-c.rs
@@ -0,0 +1,23 @@
+// Check that we check fns appearing in constant declarations.
+// Issue #22382.
+
+// Returning local references?
+struct DropString {
+ inner: String
+}
+impl Drop for DropString {
+ fn drop(&mut self) {
+ self.inner.clear();
+ self.inner.push_str("dropped");
+ }
+}
+const LOCAL_REF: fn() -> &'static str = {
+ fn broken() -> &'static str {
+ let local = DropString { inner: format!("Some local string") };
+ return &local.inner; //~ borrow may still be in use when destructor runs
+ }
+ broken
+};
+
+fn main() {
+}