v8/test/mjsunit/harmony/global-accessors-strict.js
Adam Klein cd76322817 Add flag to make __defineGetter__ & co. behave as strict functions
When --harmony-strict-legacy-accessor-builtins is enabled, it brings
V8's behavior in line with the spec and more recent versions of
SpiderMonkey and JSC:
  - No implicit receiver coercion
  - Attempting to redefine a non-configurable property throws

Bug: v8:5070
Change-Id: I82b927538604136c0c550e19bcc606fbfea1377e
Reviewed-on: https://chromium-review.googlesource.com/478312
Reviewed-by: Daniel Ehrenberg <littledan@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44703}
2017-04-18 21:40:14 +00:00

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2.0 KiB
JavaScript

// Copyright 2010 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.
// Test accessors on the global object.
//
// Flags: --harmony-strict-legacy-accessor-builtins
var x_ = 0;
this.__defineSetter__('x', function(x) { x_ = x; });
this.__defineGetter__('x', function() { return x_; });
this.__defineSetter__('y', function(x) { });
this.__defineGetter__('y', function() { return 7; });
function f(a) {
x = x + a;
return x;
}
function g(a) {
y = y + a;
return y;
}
assertEquals(1, f(1));
assertEquals(3, f(2));
assertEquals(7, g(1));
assertEquals(7, g(2));