v8/test/mjsunit/regress/regress-270142.js
rossberg@chromium.org b882bddcfd Make a strict function's "name" property non-writable.
Set [[Writable]] to false for the "name" property of strict
functions as well, mirroring what non-strict functions have
it as.

LOG=N
R=rossberg@chromium.org
TEST=mjsunit/regress/regress-270142
BUG=270142

Review URL: https://codereview.chromium.org/99203006

Patch from Sigbjorn Finne <sigbjornf@opera.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18387 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-12-20 12:06:11 +00:00

49 lines
2.0 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.
// Check that "name"'s property descriptor for non-strict and strict
// functions correspond.
function f(x) {
return x;
}
function g(x) {
"use strict";
return x;
}
function checkNameDescriptor(f) {
var descriptor = Object.getOwnPropertyDescriptor(f, "name");
assertFalse(descriptor.configurable);
assertFalse(descriptor.enumerable);
assertFalse(descriptor.writable);
}
checkNameDescriptor(f);
checkNameDescriptor(g);