aa396c5779
This fixes bug 900 Review URL: http://codereview.chromium.org/5959009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6158 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
108 lines
3.6 KiB
JavaScript
108 lines
3.6 KiB
JavaScript
// Copyright 2009 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 that getters can be defined and called with an index as a parameter.
|
|
|
|
var o = {};
|
|
o.x = 42;
|
|
o.__defineGetter__('0', function() { return o.x; });
|
|
assertEquals(o.x, o[0]);
|
|
assertEquals(o.x, o.__lookupGetter__('0')());
|
|
|
|
o.__defineSetter__('0', function(y) { o.x = y; });
|
|
assertEquals(o.x, o[0]);
|
|
assertEquals(o.x, o.__lookupGetter__('0')());
|
|
o[0] = 21;
|
|
assertEquals(21, o.x);
|
|
o.__lookupSetter__(0)(7);
|
|
assertEquals(7, o.x);
|
|
|
|
function Pair(x, y) {
|
|
this.x = x;
|
|
this.y = y;
|
|
};
|
|
Pair.prototype.__defineGetter__('0', function() { return this.x; });
|
|
Pair.prototype.__defineGetter__('1', function() { return this.y; });
|
|
Pair.prototype.__defineSetter__('0', function(x) { this.x = x; });
|
|
Pair.prototype.__defineSetter__('1', function(y) { this.y = y; });
|
|
|
|
var p = new Pair(2, 3);
|
|
assertEquals(2, p[0]);
|
|
assertEquals(3, p[1]);
|
|
p.x = 7;
|
|
p[1] = 8;
|
|
assertEquals(7, p[0]);
|
|
assertEquals(7, p.x);
|
|
assertEquals(8, p[1]);
|
|
assertEquals(8, p.y);
|
|
|
|
|
|
// Testing that a defined getter doesn't get lost due to inline caching.
|
|
var expected = {};
|
|
var actual = {};
|
|
for (var i = 0; i < 10; i++) {
|
|
expected[i] = actual[i] = i;
|
|
}
|
|
function testArray() {
|
|
for (var i = 0; i < 10; i++) {
|
|
assertEquals(expected[i], actual[i]);
|
|
}
|
|
}
|
|
actual[1000000] = -1;
|
|
testArray();
|
|
testArray();
|
|
actual.__defineGetter__('0', function() { return expected[0]; });
|
|
expected[0] = 42;
|
|
testArray();
|
|
expected[0] = 111;
|
|
testArray();
|
|
|
|
// Using a setter where only a getter is defined throws an exception.
|
|
var q = {};
|
|
q.__defineGetter__('0', function() { return 42; });
|
|
assertThrows('q[0] = 7');
|
|
|
|
// Using a getter where only a setter is defined returns undefined.
|
|
var q1 = {};
|
|
q1.__defineSetter__('0', function() {q1.b = 17;});
|
|
assertEquals(q1[0], undefined);
|
|
// Setter works
|
|
q1[0] = 3;
|
|
assertEquals(q1[0], undefined);
|
|
assertEquals(q1.b, 17);
|
|
|
|
// Complex case of using an undefined getter.
|
|
// From http://code.google.com/p/v8/issues/detail?id=298
|
|
// Reported by nth10sd.
|
|
|
|
a = function() {};
|
|
__defineSetter__("0", function() {});
|
|
if (a |= '') {};
|
|
assertThrows('this[a].__parent__');
|
|
assertEquals(a, 0);
|
|
assertEquals(this[a], undefined);
|