getter-in-prototype.js 2.43 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
// 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.

28 29 30
// Test that exceptions are not thrown when setting properties on object
// that have only a getter in a prototype object, except when we are in strict
// mode where exceptsions should be thrown.
31 32 33 34

var o = {};
var p = {};
p.__defineGetter__('x', function(){});
35
p.__defineGetter__(0, function(){});
36 37
o.__proto__ = p;

38 39 40 41 42
assertDoesNotThrow("o.x = 42");
assertDoesNotThrow("o[0] = 42");

assertThrows(function() { 'use strict'; o.x = 42; });
assertThrows(function() { 'use strict'; o[0] = 42; });
43 44 45 46 47 48

function f() {
  with(o) {
    x = 42;
  }
}
49 50

assertDoesNotThrow(f);
51 52 53 54 55 56

__proto__ = p;
function g() {
  eval('1');
  x = 42;
}
57 58 59 60 61 62 63 64 65

function g_strict() {
  'use strict';
  eval('1');
  x = 42;
}

assertDoesNotThrow(g);
assertThrows(g_strict);
66 67 68 69 70

__proto__ = p;
function g2() {
  this[0] = 42;
}
71 72 73 74 75 76 77 78

function g2_strict() {
  'use strict';
  this[0] = 42;
}

assertDoesNotThrow(g2);
assertThrows(g2_strict);