Add m-esr52 at 52.6.0

1 files changed, 53 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/testFreshGlobalEvalRedefinition.cpp b/js/src/jsapi-tests/testFreshGlobalEvalRedefinition.cpp
new file mode 100644
index 000000000..e9744a24a
--- /dev/null
+++ b/js/src/jsapi-tests/testFreshGlobalEvalRedefinition.cpp
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsapi-tests/tests.h"
+
+static bool
+GlobalEnumerate(JSContext* cx, JS::Handle<JSObject*> obj)
+{
+    return JS_EnumerateStandardClasses(cx, obj);
+}
+
+static bool
+GlobalResolve(JSContext* cx, JS::HandleObject obj, JS::HandleId id, bool* resolvedp)
+{
+    return JS_ResolveStandardClass(cx, obj, id, resolvedp);
+}
+
+BEGIN_TEST(testRedefineGlobalEval)
+{
+    static const JSClassOps clsOps = {
+        nullptr, nullptr, nullptr, nullptr,
+        GlobalEnumerate, GlobalResolve, nullptr, nullptr,
+        nullptr, nullptr, nullptr,
+        JS_GlobalObjectTraceHook
+    };
+
+    static const JSClass cls = {
+        "global", JSCLASS_GLOBAL_FLAGS,
+        &clsOps
+    };
+
+    /* Create the global object. */
+    JS::CompartmentOptions options;
+    JS::Rooted<JSObject*> g(cx, JS_NewGlobalObject(cx, &cls, nullptr, JS::FireOnNewGlobalHook, options));
+    if (!g)
+        return false;
+
+    JSAutoCompartment ac(cx, g);
+    JS::Rooted<JS::Value> v(cx);
+    CHECK(JS_GetProperty(cx, g, "Object", &v));
+
+    static const char data[] = "Object.defineProperty(this, 'eval', { configurable: false });";
+    JS::CompileOptions opts(cx);
+    CHECK(JS::Evaluate(cx, opts.setFileAndLine(__FILE__, __LINE__),
+                       data, mozilla::ArrayLength(data) - 1, &v));
+
+    return true;
+}
+END_TEST(testRedefineGlobalEval)