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| 1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
| 11 // with the distribution. | 11 // with the distribution. |
| 12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
| 13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
| 14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
| 15 // | 15 // |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 // Testing basic functionality of the arguments object. | 27 // Testing basic functionality of the arguments object. |
| 28 // Introduced to ensure that the fast compiler does the right thing. | 28 // Introduced to ensure that the fast compiler does the right thing. |
| 29 // The arguments object itself. | 29 // The arguments object itself. |
| 30 assertEquals(42, function(){ return arguments;}(42)[0], | 30 assertEquals(42, function(){ return arguments; }(42)[0], |
| 31 "return arguments value"); | 31 "return arguments value"); |
| 32 assertEquals(42, function(){ return arguments;}(42)[0], | 32 assertEquals(42, function(){ return arguments; }(42)[0], |
| 33 "arguments in plain value context"); | 33 "arguments in plain value context"); |
| 34 assertEquals(42, function(){ arguments;return 42}(37), | 34 assertEquals(42, function(){ arguments; return 42; }(37), |
| 35 "arguments in effect context"); | 35 "arguments in effect context"); |
| 36 assertEquals(42, function(){ if(arguments)return 42;}(), | 36 assertEquals(42, function(){ if (arguments) return 42; }(), |
| 37 "arguments in a boolean context"); | 37 "arguments in a boolean context"); |
| 38 assertEquals(42, function(){ return arguments || true;}(42)[0], | 38 assertEquals(42, function(){ return arguments || true; }(42)[0], |
| 39 "arguments in a short-circuit boolean context - or"); | 39 "arguments in a short-circuit boolean context - or"); |
| 40 assertEquals(true, function(){ return arguments && [true];}(42)[0], | 40 assertEquals(true, function(){ return arguments && [true]; }(42)[0], |
| 41 "arguments in a short-circuit boolean context - and"); | 41 "arguments in a short-circuit boolean context - and"); |
| 42 assertEquals(42, function(){ arguments = 42; return 42;}(), | 42 assertEquals(42, function(){ arguments = 42; return 42; }(), |
| 43 "arguments assignment"); | 43 "arguments assignment"); |
| 44 // Properties of the arguments object. | 44 // Properties of the arguments object. |
| 45 assertEquals(42, function(){ return arguments[0]; }(42), | 45 assertEquals(42, function(){ return arguments[0]; }(42), |
| 46 "args[0] value returned"); | 46 "args[0] value returned"); |
| 47 assertEquals(42, function(){ arguments[0]; return 42}(), | 47 assertEquals(42, function(){ arguments[0]; return 42; }(), |
| 48 "args[0] value ignored"); | 48 "args[0] value ignored"); |
| 49 assertEquals(42, function(){ if (arguments[0]) return 42; }(37), | 49 assertEquals(42, function(){ if (arguments[0]) return 42; }(37), |
| 50 "args[0] to boolean"); | 50 "args[0] to boolean"); |
| 51 assertEquals(42, function(){ return arguments[0] || "no"; }(42), | 51 assertEquals(42, function(){ return arguments[0] || "no"; }(42), |
| 52 "args[0] short-circuit boolean or true"); | 52 "args[0] short-circuit boolean or true"); |
| 53 assertEquals(42, function(){ return arguments[0] || 42; }(0), | 53 assertEquals(42, function(){ return arguments[0] || 42; }(0), |
| 54 "args[0] short-circuit boolean or false"); | 54 "args[0] short-circuit boolean or false"); |
| 55 assertEquals(37, function(){ return arguments[0] && 37; }(42), | 55 assertEquals(37, function(){ return arguments[0] && 37; }(42), |
| 56 "args[0] short-circuit boolean and true"); | 56 "args[0] short-circuit boolean and true"); |
| 57 assertEquals(0, function(){ return arguments[0] && 42; }(0), | 57 assertEquals(0, function(){ return arguments[0] && 42; }(0), |
| (...skipping 56 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 114 function(){ | 114 function(){ |
| 115 return b + | 115 return b + |
| 116 function() { | 116 function() { |
| 117 return a; | 117 return a; |
| 118 }(); | 118 }(); |
| 119 }(); | 119 }(); |
| 120 }(7,14,21), | 120 }(7,14,21), |
| 121 "deep nested capture"); | 121 "deep nested capture"); |
| 122 | 122 |
| 123 // Assignment to captured parameters. | 123 // Assignment to captured parameters. |
| 124 assertEquals(42, function(a,b) { | 124 assertEquals(42, |
| 125 arguments[1] = 11; | 125 function(a,b) { |
| 126 return a + function(){ a = b; return a; }() + a; | 126 arguments[1] = 11; |
| 127 }(20, 37), "captured assignment"); | 127 return a + function(){ a = b; return a; }() + a; |
| 128 }(20, 37), |
| 129 "captured assignment"); |
| 128 | 130 |
| 129 // Inside non-function scopes. | 131 // Inside non-function scopes. |
| 130 assertEquals(42, | 132 assertEquals(42, |
| 131 function(a) { | 133 function(a) { |
| 132 arguments[0] = 20; | 134 arguments[0] = 20; |
| 133 with ({ b : 22 }) { return a + b; } | 135 with ({ b : 22 }) { return a + b; } |
| 134 }(37), | 136 }(37), |
| 135 "a in with"); | 137 "a in with"); |
| 136 assertEquals(42, | 138 assertEquals(42, |
| 137 function(a) { | 139 function(a) { |
| 138 with ({ b : 22 }) { return arguments[0] + b; } | 140 with ({ b : 22 }) { return arguments[0] + b; } |
| 139 }(20), | 141 }(20), |
| 140 "args in with"); | 142 "args in with"); |
| 141 assertEquals(42, | 143 assertEquals(42, |
| 142 function(a) { | 144 function(a) { |
| 143 arguments[0] = 20; | 145 arguments[0] = 20; |
| 144 with ({ b : 22 }) { | 146 with ({ b : 22 }) { |
| 145 return function() { return a; }() + b; } | 147 return function() { return a; }() + b; } |
| 146 }(37), | 148 }(37), |
| 147 "captured a in with"); | 149 "captured a in with"); |
| 148 assertEquals(42, | 150 assertEquals(42, |
| 149 function(a) { | 151 function(a) { |
| 150 arguments[0] = 12; | 152 arguments[0] = 12; |
| 151 with ({ b : 22 }) { | 153 with ({ b : 22 }) { |
| 152 return function f() { | 154 return function f() { |
| 153 try { throw 8 } catch(e) { return e + a }; | 155 try { throw 8; } catch(e) { return e + a; } |
| 154 }() + b; | 156 }() + b; |
| 155 } | 157 } |
| 156 }(37), | 158 }(37), |
| 157 "in a catch in a named function captured a in with "); | 159 "in a catch in a named function captured a in with "); |
| 158 // Escaping arguments. | 160 // Escaping arguments. |
| 159 function weirdargs(a,b,c) { if (!a) return arguments; | 161 function weirdargs(a, b, c) { |
| 160 return [b[2],c]; } | 162 if (!a) return arguments; |
| 163 return [b[2],c]; |
| 164 } |
| 161 var args1 = weirdargs(false, null, 40); | 165 var args1 = weirdargs(false, null, 40); |
| 162 var res = weirdargs(true, args1, 15); | 166 var res = weirdargs(true, args1, 15); |
| 163 assertEquals(40, res[0], "return old args element"); | 167 assertEquals(40, res[0], "return old args element"); |
| 164 assertEquals(15, res[1], "return own args element"); | 168 assertEquals(15, res[1], "return own args element"); |
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