CSE2410 Fall 2014 Bounce

// Copyright 2008 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 fast objects

var o = { };

assertFalse(0 in o);

assertFalse('x' in o);

assertFalse('y' in o);

assertTrue('toString' in o, "toString");

var o = { x: 12 };

assertFalse(0 in o);

assertTrue('x' in o);

assertFalse('y' in o);

assertTrue('toString' in o, "toString");

var o = { x: 12, y: 15 };

assertFalse(0 in o);

assertTrue('x' in o);

assertTrue('y' in o);

assertTrue('toString' in o, "toString");

// ----------------

// Check dense arrays

var a = [ ];

assertFalse(0 in a);

assertFalse(1 in a);

assertFalse('0' in a);

assertFalse('1' in a);

assertTrue('toString' in a, "toString");

var a = [ 1 ];

assertTrue(0 in a);

assertFalse(1 in a);

assertTrue('0' in a);

assertFalse('1' in a);

assertTrue('toString' in a, "toString");

var a = [ 1, 2 ];

assertTrue(0 in a);

assertTrue(1 in a);

assertTrue('0' in a);

assertTrue('1' in a);

assertTrue('toString' in a, "toString");

var a = [ 1, 2 ];

assertFalse(0.001 in a);

assertTrue(-0 in a);

assertTrue(+0 in a);

assertFalse('0.0' in a);

assertFalse('1.0' in a);

assertFalse(NaN in a);

assertFalse(Infinity in a);

assertFalse(-Infinity in a);

var a = [];

a[1] = 2;

assertFalse(0 in a);

assertTrue(1 in a);

assertFalse(2 in a);

assertFalse('0' in a); 

assertTrue('1' in a);

assertFalse('2' in a);

assertTrue('toString' in a, "toString");

// ----------------

// Check dictionary ("normalized") objects

var o = {};

for (var i = 0x0020; i < 0x02ff; i += 2) {

  o['char:' + String.fromCharCode(i)] = i;

}

for (var i = 0x0020; i < 0x02ff; i += 2) {

  assertTrue('char:' + String.fromCharCode(i) in o);

  assertFalse('char:' + String.fromCharCode(i + 1) in o);

}

assertTrue('toString' in o, "toString");

var o = {};

o[Math.pow(2,30)-1] = 0;

o[Math.pow(2,31)-1] = 0;

o[1] = 0;

assertFalse(0 in o);

assertTrue(1 in o);

assertFalse(2 in o);

assertFalse(Math.pow(2,30)-2 in o);

assertTrue(Math.pow(2,30)-1 in o);

assertFalse(Math.pow(2,30)-0 in o);

assertTrue(Math.pow(2,31)-1 in o);

assertFalse(0.001 in o);

assertFalse('0.0' in o);

assertFalse('1.0' in o);

assertFalse(NaN in o);

assertFalse(Infinity in o);

assertFalse(-Infinity in o);

assertFalse(-0 in o);

assertFalse(+0 in o);

assertTrue('toString' in o, "toString");

// ----------------

// Check sparse arrays

var a = [];

a[Math.pow(2,30)-1] = 0;

a[Math.pow(2,31)-1] = 0;

a[1] = 0;

assertFalse(0 in a, "0 in a");

assertTrue(1 in a, "1 in a");

assertFalse(2 in a, "2 in a");

assertFalse(Math.pow(2,30)-2 in a, "Math.pow(2,30)-2 in a");

assertTrue(Math.pow(2,30)-1 in a, "Math.pow(2,30)-1 in a");

assertFalse(Math.pow(2,30)-0 in a, "Math.pow(2,30)-0 in a");

assertTrue(Math.pow(2,31)-1 in a, "Math.pow(2,31)-1 in a");

assertFalse(0.001 in a, "0.001 in a");

assertFalse('0.0' in a,"'0.0' in a");

assertFalse('1.0' in a,"'1.0' in a");

assertFalse(NaN in a,"NaN in a");

assertFalse(Infinity in a,"Infinity in a");

assertFalse(-Infinity in a,"-Infinity in a");

assertFalse(-0 in a,"-0 in a");

assertFalse(+0 in a,"+0 in a");

assertTrue('toString' in a, "toString");

// -------------

// Check negative indices in arrays.

var a = [];

assertFalse(-1 in a);

a[-1] = 43;

assertTrue(-1 in a);