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-rw-r--r--src/test/ui/mir/mir_dynamic_drops_3.rs35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/mir/mir_dynamic_drops_3.rs b/src/test/ui/mir/mir_dynamic_drops_3.rs
new file mode 100644
index 000000000..2bcd9fac5
--- /dev/null
+++ b/src/test/ui/mir/mir_dynamic_drops_3.rs
@@ -0,0 +1,35 @@
+// run-fail
+// needs-unwind
+// error-pattern:unwind happens
+// error-pattern:drop 3
+// error-pattern:drop 2
+// error-pattern:drop 1
+// ignore-emscripten no processes
+
+/// Structure which will not allow to be dropped twice.
+struct Droppable<'a>(&'a mut bool, u32);
+impl<'a> Drop for Droppable<'a> {
+ fn drop(&mut self) {
+ if *self.0 {
+ eprintln!("{} dropped twice", self.1);
+ ::std::process::exit(1);
+ }
+ eprintln!("drop {}", self.1);
+ *self.0 = true;
+ }
+}
+
+fn may_panic<'a>() -> Droppable<'a> {
+ panic!("unwind happens");
+}
+
+fn mir<'a>(d: Droppable<'a>) {
+ let (mut a, mut b) = (false, false);
+ let y = Droppable(&mut a, 2);
+ let x = [Droppable(&mut b, 1), y, d, may_panic()];
+}
+
+fn main() {
+ let mut c = false;
+ mir(Droppable(&mut c, 3));
+}