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-rw-r--r--js/src/jit-test/tests/debug/bug1397385.js16
1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/bug1397385.js b/js/src/jit-test/tests/debug/bug1397385.js
new file mode 100644
index 0000000000..eea2c0c01e
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1397385.js
@@ -0,0 +1,16 @@
+var g = newGlobal({newCompartment: true});
+
+g.evaluate(`
+ function testInnerFun(defaultArg = 1) {
+ function innerFun(expectedThis) { return this; }
+ h();
+ return innerFun; // To prevent the JIT from optimizing out innerFun.
+ }
+`);
+
+g.h = function () {
+ var res = (new Debugger(g)).getNewestFrame().eval('assertEq(innerFun(), this)');
+ assertEq("return" in res, true);
+}
+
+g.testInnerFun();