v8/test/mjsunit/regress/readonly5.js
verwaest@chromium.org 98d8c9e452 Always check global property cells for readonliness before storing.
Add check when the global object is the last in the chain.

Review URL: https://chromiumcodereview.appspot.com/13730002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-04-09 08:09:05 +00:00

69 lines
2.2 KiB
JavaScript

// Copyright 2013 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
this.__proto__ = null;
this.x = 10;
delete this.x;
function s(v) {
return v.x = 1;
}
function s_strict(v) {
"use strict";
return v.x = 1;
}
function c() {
var o = {__proto__:this};
return o;
}
var o1 = c();
var o2 = c();
var o1_strict = c();
var o2_strict = c();
var o3 = c();
var o4 = c();
// Initialize the store IC.
s(o1);
s(o2);
s_strict(o1_strict);
s_strict(o2_strict);
Object.defineProperty(this, "x", {writable:false, configurable:true});
// Verify that directly setting x fails.
o3.x = 1;
assertEquals(undefined, o3.x);
// Verify that setting x through the IC fails.
assertThrows("s_strict(o4)", TypeError);
s(o4);
assertEquals(undefined, o4.x);