1b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// Copyright 2013 the V8 project authors. All rights reserved.
2b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// Redistribution and use in source and binary forms, with or without
3b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// modification, are permitted provided that the following conditions are
4b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// met:
5b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//
6b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//     * Redistributions of source code must retain the above copyright
7b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//       notice, this list of conditions and the following disclaimer.
8b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//     * Redistributions in binary form must reproduce the above
9b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//       copyright notice, this list of conditions and the following
10b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//       disclaimer in the documentation and/or other materials provided
11b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//       with the distribution.
12b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//     * Neither the name of Google Inc. nor the names of its
13b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//       contributors may be used to endorse or promote products derived
14b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//       from this software without specific prior written permission.
15b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org//
16b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org
28b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org// Test that the length property of a function is read-only in strict mode.
29b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org
30b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org"use strict";
31b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org
32b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.orgfunction foo(a, b, c) {
33b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org  return b;
34b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org}
35b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.org
36b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.orgvar desc = Object.getOwnPropertyDescriptor(foo, 'length');
37b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.orgassertEquals(3, desc.value);
38b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.orgassertFalse(desc.writable);
39b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.orgassertFalse(desc.enumerable);
40b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.orgassertFalse(desc.configurable);
41b752d4061aaeb7d6a6ec368607871789d54b0207dslomov@chromium.orgassertThrows(function() { foo.length = 2; }, TypeError);
42