JezK
Edit File: keyed-call-generic.js
// 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. // A test for keyed call ICs with a mix of smi and string keys. function testOne(receiver, key, result) { for(var i = 0; i != 10; i++ ) { assertEquals(result, receiver[key]()); } } function testMany(receiver, keys, results) { for (var i = 0; i != 10; i++) { for (var k = 0; k != keys.length; k++) { assertEquals(results[k], receiver[keys[k]]()); } } } var toStringNonSymbol = 'to'; toStringNonSymbol += 'String'; function TypeOfThis() { return typeof this; } Number.prototype.square = function() { return this * this; } Number.prototype.power4 = function() { return this.square().square(); } Number.prototype.type = TypeOfThis; String.prototype.type = TypeOfThis; Boolean.prototype.type = TypeOfThis; // Use a non-symbol key to force inline cache to generic case. testOne(0, toStringNonSymbol, '0'); testOne(1, 'toString', '1'); testOne('1', 'toString', '1'); testOne(1.0, 'toString', '1'); testOne(1, 'type', 'object'); testOne(2.3, 'type', 'object'); testOne('x', 'type', 'object'); testOne(true, 'type', 'object'); testOne(false, 'type', 'object'); testOne(2, 'square', 4); testOne(2, 'power4', 16); function zero () { return 0; } function one () { return 1; } function two () { return 2; } var fixed_array = [zero, one, two]; var dict_array = [ zero, one, two ]; dict_array[100000] = 1; var fast_prop = { zero: zero, one: one, two: two }; var normal_prop = { zero: zero, one: one, two: two }; normal_prop.x = 0; delete normal_prop.x; var first3num = [0, 1, 2]; var first3str = ['zero', 'one', 'two']; // Use a non-symbol key to force inline cache to generic case. testMany('123', [toStringNonSymbol, 'charAt', 'charCodeAt'], ['123', '1', 49]); testMany(fixed_array, first3num, first3num); testMany(dict_array, first3num, first3num); testMany(fast_prop, first3str, first3num); testMany(normal_prop, first3str, first3num); function testException(receiver, keys, exceptions) { for (var i = 0; i != 10; i++) { for (var k = 0; k != keys.length; k++) { var thrown = false; try { var result = receiver[keys[k]](); } catch (e) { thrown = true; } assertEquals(exceptions[k], thrown); } } } testException([zero, one, /* hole */ ], [0, 1, 2], [false, false, true]);