75 lines
2.9 KiB
JavaScript
75 lines
2.9 KiB
JavaScript
|
// Copyright 2012 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.
|
||
|
|
|
||
|
|
// Delete elements of a String object.
|
||
|
|
var TIPLI = "tipli"
|
||
|
|
var so = new String(TIPLI);
|
||
|
|
var length = so.length;
|
||
|
|
|
||
|
|
for (var i = 0; i < length; i++) {
|
||
|
|
assertFalse(delete so[i]);
|
||
|
|
assertThrows("'use strict'; delete so[i];", TypeError);
|
||
|
|
assertFalse(delete so[i.toString()]);
|
||
|
|
assertThrows("'use strict'; delete so[i.toString()];", TypeError);
|
||
|
|
}
|
||
|
|
|
||
|
|
assertEquals(length, so.length);
|
||
|
|
assertEquals(new String(TIPLI), so);
|
||
|
|
|
||
|
|
// Delete elements of an Array.
|
||
|
|
var arr = new Array(length);
|
||
|
|
|
||
|
|
for (var i = 0; i < length; i++) {
|
||
|
|
arr[i] = i;
|
||
|
|
Object.defineProperty(arr, i, { configurable: false });
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var i = 0; i < length; i++) {
|
||
|
|
assertFalse(delete arr[i]);
|
||
|
|
assertThrows("'use strict'; delete arr[i];", TypeError);
|
||
|
|
assertFalse(delete arr[i.toString()]);
|
||
|
|
assertThrows("'use strict'; delete arr[i.toString()];", TypeError);
|
||
|
|
assertEquals(i, arr[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
assertEquals(length, arr.length);
|
||
|
|
assertTrue(delete arr[length]);
|
||
|
|
|
||
|
|
// Delete an element of an Object.
|
||
|
|
var INDEX = 28;
|
||
|
|
var obj = new Object();
|
||
|
|
|
||
|
|
obj[INDEX] = TIPLI;
|
||
|
|
Object.defineProperty(obj, INDEX, { configurable: false });
|
||
|
|
|
||
|
|
assertFalse(delete obj[INDEX]);
|
||
|
|
assertThrows("'use strict'; delete obj[INDEX];", TypeError);
|
||
|
|
assertFalse(delete obj[INDEX.toString()]);
|
||
|
|
assertThrows("'use strict'; delete obj[INDEX.toString()];", TypeError);
|
||
|
|
assertEquals(TIPLI, obj[INDEX]);
|
||
|
|
assertTrue(delete arr[INDEX+1]);
|