From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 .../tests/debug/Environment-setVariable-12.js       | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 js/src/jit-test/tests/debug/Environment-setVariable-12.js

(limited to 'js/src/jit-test/tests/debug/Environment-setVariable-12.js')

diff --git a/js/src/jit-test/tests/debug/Environment-setVariable-12.js b/js/src/jit-test/tests/debug/Environment-setVariable-12.js
new file mode 100644
index 000000000..2fd3b6fbc
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Environment-setVariable-12.js
@@ -0,0 +1,21 @@
+// setVariable can create a new property on a with block's bindings object, if
+// it is shadowing an existing property on the prototype chain.
+
+var g = newGlobal();
+var dbg = Debugger(g);
+dbg.onDebuggerStatement = function (frame) {
+    var env = frame.environment.find("x");
+    env.setVariable("x", 2);
+};
+g.eval("var obj1 = {x: 1}, obj2 = Object.create(obj1), z; with (obj2) { debugger; z = x; }");
+assertEq(g.obj1.x, 1);
+assertEq(g.obj2.x, 2);
+assertEq(g.z, 2);
+
+// The property created by setVariable is like the one created by ordinary
+// assignment in a with-block.
+var desc = Object.getOwnPropertyDescriptor(g.obj2, "x");
+assertEq(desc.configurable, true);
+assertEq(desc.enumerable, true);
+assertEq(desc.writable, true);
+assertEq(desc.value, 2);
-- 
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