1// Copyright 2008 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28// Flags: --allow-natives-syntax 29 30/** 31 * @fileoverview Check all sorts of borderline cases for charCodeAt. 32 */ 33 34function Cons() { 35 return "Te" + "st testing 123"; 36} 37 38 39function Deep() { 40 var a = "T"; 41 a += "e"; 42 a += "s"; 43 a += "ting testing 123"; 44 return a; 45} 46 47 48function Slice() { 49 return "testing Testing testing 123456789012345".substring(8, 22); 50} 51 52 53function Flat() { 54 return "Testing testing 123"; 55} 56 57function Cons16() { 58 return "Te" + "\u1234t testing 123"; 59} 60 61 62function Deep16() { 63 var a = "T"; 64 a += "e"; 65 a += "\u1234"; 66 a += "ting testing 123"; 67 return a; 68} 69 70 71function Slice16Beginning() { 72 return "Te\u1234t testing testing 123".substring(0, 14); 73} 74 75 76function Slice16Middle() { 77 return "test Te\u1234t testing testing 123".substring(5, 19); 78} 79 80 81function Slice16End() { 82 return "test Te\u1234t".substring(5, 9); 83} 84 85 86function Flat16() { 87 return "Te\u1234ting testing 123"; 88} 89 90 91function Thing() { 92} 93 94 95function NotAString() { 96 var n = new Thing(); 97 n.toString = function() { return "Test"; }; 98 n.charCodeAt = String.prototype.charCodeAt; 99 return n; 100} 101 102 103function NotAString16() { 104 var n = new Thing(); 105 n.toString = function() { return "Te\u1234t"; }; 106 n.charCodeAt = String.prototype.charCodeAt; 107 return n; 108} 109 110 111function TestStringType(generator, sixteen) { 112 var g = generator; 113 var len = g().toString().length; 114 var t = sixteen ? "t" : "f" 115 t += generator.name; 116 assertTrue(isNaN(g().charCodeAt(-1e19)), 1 + t); 117 assertTrue(isNaN(g().charCodeAt(-0x80000001)), 2 + t); 118 assertTrue(isNaN(g().charCodeAt(-0x80000000)), 3 + t); 119 assertTrue(isNaN(g().charCodeAt(-0x40000000)), 4 + t); 120 assertTrue(isNaN(g().charCodeAt(-1)), 5 + t); 121 assertTrue(isNaN(g().charCodeAt(len)), 6 + t); 122 assertTrue(isNaN(g().charCodeAt(len + 1)), 7 + t); 123 assertTrue(isNaN(g().charCodeAt(0x3fffffff)), 8 + t); 124 assertTrue(isNaN(g().charCodeAt(0x7fffffff)), 9 + t); 125 assertTrue(isNaN(g().charCodeAt(0x80000000)), 10 + t); 126 assertTrue(isNaN(g().charCodeAt(1e9)), 11 + t); 127 assertEquals(84, g().charCodeAt(0), 12 + t); 128 assertEquals(84, g().charCodeAt("test"), 13 + t); 129 assertEquals(84, g().charCodeAt(""), 14 + t); 130 assertEquals(84, g().charCodeAt(null), 15 + t); 131 assertEquals(84, g().charCodeAt(undefined), 16 + t); 132 assertEquals(84, g().charCodeAt(), 17 + t); 133 assertEquals(84, g().charCodeAt(void 0), 18 + t); 134 assertEquals(84, g().charCodeAt(false), 19 + t); 135 assertEquals(101, g().charCodeAt(true), 20 + t); 136 assertEquals(101, g().charCodeAt(1), 21 + t); 137 assertEquals(sixteen ? 0x1234 : 115, g().charCodeAt(2), 22 + t); 138 assertEquals(116, g().charCodeAt(3), 23 + t); 139 assertEquals(101, g().charCodeAt(1.1), 24 + t); 140 assertEquals(sixteen ? 0x1234 : 115, g().charCodeAt(2.1718), 25 + t); 141 assertEquals(116, g().charCodeAt(3.14159), 26 + t); 142} 143 144 145TestStringType(Cons, false); 146TestStringType(Deep, false); 147TestStringType(Slice, false); 148TestStringType(Flat, false); 149TestStringType(NotAString, false); 150TestStringType(Cons16, true); 151TestStringType(Deep16, true); 152TestStringType(Slice16Beginning, true); 153TestStringType(Slice16Middle, true); 154TestStringType(Slice16End, true); 155TestStringType(Flat16, true); 156TestStringType(NotAString16, true); 157 158 159function ConsNotSmiIndex() { 160 var str = Cons(); 161 assertTrue(isNaN(str.charCodeAt(0x7fffffff))); 162} 163 164for (var i = 0; i < 5; i++) { 165 ConsNotSmiIndex(); 166} 167%OptimizeFunctionOnNextCall(ConsNotSmiIndex); 168ConsNotSmiIndex(); 169 170 171for (var i = 0; i != 10; i++) { 172 assertEquals(101, Cons16().charCodeAt(1.1)); 173 assertEquals('e', Cons16().charAt(1.1)); 174} 175 176function StupidThing() { 177 // Doesn't return a string from toString! 178 this.toString = function() { return 42; } 179 this.charCodeAt = String.prototype.charCodeAt; 180} 181 182assertEquals(52, new StupidThing().charCodeAt(0), 27); 183assertEquals(50, new StupidThing().charCodeAt(1), 28); 184assertTrue(isNaN(new StupidThing().charCodeAt(2)), 29); 185assertTrue(isNaN(new StupidThing().charCodeAt(-1)), 30); 186 187 188// Medium (>255) and long (>65535) strings. 189 190var medium = "12345678"; 191medium += medium; // 16. 192medium += medium; // 32. 193medium += medium; // 64. 194medium += medium; // 128. 195medium += medium; // 256. 196 197var long = medium; 198long += long + long + long; // 1024. 199long += long + long + long; // 4096. 200long += long + long + long; // 16384. 201long += long + long + long; // 65536. 202 203assertTrue(isNaN(medium.charCodeAt(-1)), 31); 204assertEquals(49, medium.charCodeAt(0), 32); 205assertEquals(56, medium.charCodeAt(255), 33); 206assertTrue(isNaN(medium.charCodeAt(256)), 34); 207 208assertTrue(isNaN(long.charCodeAt(-1)), 35); 209assertEquals(49, long.charCodeAt(0), 36); 210assertEquals(56, long.charCodeAt(65535), 37); 211assertTrue(isNaN(long.charCodeAt(65536)), 38); 212 213 214// Test crankshaft code when the function is set directly on the 215// string prototype object instead of the hidden prototype object. 216// See http://code.google.com/p/v8/issues/detail?id=1070 217 218String.prototype.x = String.prototype.charCodeAt; 219 220function directlyOnPrototype() { 221 assertEquals(97, "a".x(0)); 222 assertEquals(98, "b".x(0)); 223 assertEquals(99, "c".x(0)); 224 assertEquals(97, "a".x(0)); 225 assertEquals(98, "b".x(0)); 226 assertEquals(99, "c".x(0)); 227} 228 229for (var i = 0; i < 5; i++) { 230 directlyOnPrototype(); 231} 232%OptimizeFunctionOnNextCall(directlyOnPrototype); 233directlyOnPrototype(); 234 235assertTrue(isNaN(%_StringCharCodeAt("ABC", -1))); 236assertTrue(isNaN(%_StringCharCodeAt("ABC", 4))); 237