1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/bug1397049.js b/js/src/jit-test/tests/debug/bug1397049.js
new file mode 100644
index 0000000000..484fc2a178
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1397049.js
@@ -0,0 +1,40 @@
+// Run debugger in its own global
+let g = newGlobal({newCompartment: true});
+g.target = this;
+g.evaluate(`
+    let d = new Debugger;
+    let gw = d.addDebuggee(target);
+
+    d.onDebuggerStatement = function(frame)
+    {
+        frame = frame.older;
+
+        let res = frame.eval("this");
+        assertEq(res.return, frame.this);
+
+        res = frame.evalWithBindings("this", {x:42});
+        assertEq(res.return, frame.this);
+    }
+`);
+
+// Debugger statement affects parse so hide in another function
+function brk() { debugger; }
+
+function f1() {
+    var temp = "string";
+    brk();
+}
+
+function f2() {
+    let temp = "string";
+    brk();
+}
+
+function f3() {
+    const temp = "string";
+    brk();
+}
+
+f1.call({});
+f2.call({});
+f3.call({});