js/src/jsapi-tests/testSetProperty.cpp
author Norisz Fay <nfay@mozilla.com>
Fri, 21 Jan 2022 11:26:20 +0200
changeset 605083 6ca2ae7f66684fae2b65257496074d7f2b0510b3
parent 585399 3a72f69192c6d75dea48034e554c3a9bf4f58055
permissions -rw-r--r--
Merge autoland to mozilla-central. a=merge

/* -*- 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/Object.h"              // JS::GetClass
#include "js/PropertyAndElement.h"  // JS_DefineProperty
#include "jsapi-tests/tests.h"

BEGIN_TEST(testSetProperty_InheritedGlobalSetter) {
  // This is a JSAPI test because jsapi-test globals can be set up to not have
  // a resolve hook and therefore can use the property cache in some cases
  // where the shell can't.
  MOZ_RELEASE_ASSERT(!JS::GetClass(global)->getResolve());

  CHECK(JS::InitRealmStandardClasses(cx));

  CHECK(JS_DefineProperty(cx, global, "HOTLOOP", 8, 0));
  EXEC(
      "var n = 0;\n"
      "var global = this;\n"
      "function f() { n++; }\n"
      "Object.defineProperty(Object.prototype, 'x', {set: f});\n"
      "for (var i = 0; i < HOTLOOP; i++)\n"
      "    global.x = i;\n");
  EXEC(
      "if (n != HOTLOOP)\n"
      "    throw 'FAIL';\n");
  return true;
}

const JSClass* getGlobalClass(void) override {
  static const JSClassOps noResolveGlobalClassOps = {
      nullptr,                   // addProperty
      nullptr,                   // delProperty
      nullptr,                   // enumerate
      nullptr,                   // newEnumerate
      nullptr,                   // resolve
      nullptr,                   // mayResolve
      nullptr,                   // finalize
      nullptr,                   // call
      nullptr,                   // hasInstance
      nullptr,                   // construct
      JS_GlobalObjectTraceHook,  // trace
  };

  static const JSClass noResolveGlobalClass = {
      "testSetProperty_InheritedGlobalSetter_noResolveGlobalClass",
      JSCLASS_GLOBAL_FLAGS, &noResolveGlobalClassOps};

  return &noResolveGlobalClass;
}
END_TEST(testSetProperty_InheritedGlobalSetter)