1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/throw-during-break.js b/js/src/jit-test/tests/for-of/throw-during-break.js
new file mode 100644
index 0000000000..352f6017df
--- /dev/null
+++ b/js/src/jit-test/tests/for-of/throw-during-break.js
@@ -0,0 +1,42 @@
+var whoCaught = "nobody"
+
+function* wrapNoThrow() {
+    let iter = {
+      [Symbol.iterator]() {
+        return this;
+      },
+      next() {
+        return { value: 10, done: false };
+      },
+      return() { throw "nonsense"; }
+    };
+    for (const i of iter)
+      yield i;
+  }
+function foo() {
+    try {
+	l2:
+	for (j of wrapNoThrow()) {
+	    try {
+		for (i of [1,2,3]) {
+		    try {
+			break l2;
+		    } catch(e) {
+			whoCaught = "inner"
+		    }
+		}
+	    } catch (e) {
+		whoCaught = "inner2"
+	    }
+	}
+    } catch (e) {
+	whoCaught = "correct"
+    }
+}
+
+try {
+    foo();
+} catch (e) { whoCaught = "outer" }
+
+
+assertEq(whoCaught, "correct");