1 files changed, 102 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testLookup.cpp b/js/src/jsapi-tests/testLookup.cpp
new file mode 100644
index 0000000000..24a1afa6fd
--- /dev/null
+++ b/js/src/jsapi-tests/testLookup.cpp
@@ -0,0 +1,102 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ */
+/* 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 "js/PropertyAndElement.h"  // JS_DefineProperty, JS_DefinePropertyById, JS_GetProperty
+#include "jsapi-tests/tests.h"
+#include "vm/JSFunction.h"  // for js::IsInternalFunctionObject
+
+#include "vm/JSObject-inl.h"
+
+BEGIN_TEST(testLookup_bug522590) {
+  // Define a function that makes method-bearing objects.
+  JS::RootedValue x(cx);
+  EXEC("function mkobj() { return {f: function () {return 2;}} }");
+
+  // Calling mkobj() multiple times must create multiple functions in ES5.
+  EVAL("mkobj().f !== mkobj().f", &x);
+  CHECK(x.isTrue());
+
+  // Now make x.f a method.
+  EVAL("mkobj()", &x);
+  JS::RootedObject xobj(cx, x.toObjectOrNull());
+
+  // This lookup must not return an internal function object.
+  JS::RootedValue r(cx);
+  CHECK(JS_GetProperty(cx, xobj, "f", &r));
+  CHECK(r.isObject());
+  JSObject* funobj = &r.toObject();
+  CHECK(funobj->is<JSFunction>());
+  CHECK(!js::IsInternalFunctionObject(*funobj));
+
+  return true;
+}
+END_TEST(testLookup_bug522590)
+
+static const JSClass DocumentAllClass = {"DocumentAll",
+                                         JSCLASS_EMULATES_UNDEFINED};
+
+bool document_resolve(JSContext* cx, JS::HandleObject obj, JS::HandleId id,
+                      bool* resolvedp) {
+  // If id is "all", resolve document.all=true.
+  JS::RootedValue v(cx);
+  if (!JS_IdToValue(cx, id, &v)) {
+    return false;
+  }
+
+  if (v.isString()) {
+    JSString* str = v.toString();
+    JSLinearString* linearStr = JS_EnsureLinearString(cx, str);
+    if (!linearStr) {
+      return false;
+    }
+    if (JS_LinearStringEqualsLiteral(linearStr, "all")) {
+      JS::Rooted<JSObject*> docAll(cx, JS_NewObject(cx, &DocumentAllClass));
+      if (!docAll) {
+        return false;
+      }
+
+      JS::Rooted<JS::Value> allValue(cx, JS::ObjectValue(*docAll));
+      if (!JS_DefinePropertyById(cx, obj, id, allValue, JSPROP_RESOLVING)) {
+        return false;
+      }
+
+      *resolvedp = true;
+      return true;
+    }
+  }
+
+  *resolvedp = false;
+  return true;
+}
+
+static const JSClassOps document_classOps = {
+    nullptr,           // addProperty
+    nullptr,           // delProperty
+    nullptr,           // enumerate
+    nullptr,           // newEnumerate
+    document_resolve,  // resolve
+    nullptr,           // mayResolve
+    nullptr,           // finalize
+    nullptr,           // call
+    nullptr,           // construct
+    nullptr,           // trace
+};
+
+static const JSClass document_class = {"document", 0, &document_classOps};
+
+BEGIN_TEST(testLookup_bug570195) {
+  JS::RootedObject obj(cx, JS_NewObject(cx, &document_class));
+  CHECK(obj);
+  CHECK(JS_DefineProperty(cx, global, "document", obj, 0));
+  JS::RootedValue v(cx);
+  EVAL("document.all ? true : false", &v);
+  CHECK(v.isFalse());
+  EVAL("document.hasOwnProperty('all')", &v);
+  CHECK(v.isTrue());
+  return true;
+}
+END_TEST(testLookup_bug570195)