1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-this-05.js b/js/src/jit-test/tests/debug/Frame-this-05.js
new file mode 100644
index 000000000..bd404d240
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-this-05.js
@@ -0,0 +1,23 @@
+// Frame.this and evalInFrame in the global scope.
+var g = newGlobal();
+g.eval("x = 4; this['.this'] = 222;");
+var dbg = new Debugger(g);
+var res;
+dbg.onDebuggerStatement = function (frame) {
+    res = frame.eval("this.x").return;
+    res += frame.this.unsafeDereference().x;
+};
+g.eval("debugger;");
+assertEq(res, 8);
+
+// And inside eval.
+g.eval("x = 3; eval('debugger')");
+assertEq(res, 6);
+g.eval("x = 2; eval('eval(\\'debugger\\')')");
+assertEq(res, 4);
+
+// And inside arrow functions.
+g.eval("x = 1; (() => { debugger; })()");
+assertEq(res, 2);
+g.eval("x = 5; (() => { eval('debugger'); })()");
+assertEq(res, 10);