1 // Copyright 2012 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: --expose-debug-as debug 29 30 // Get the Debug object exposed from the debug context global object. 31 var Debug = debug.Debug; 32 33 function CheckScope(scope_mirror, scope_expectations, expected_scope_type) { 34 assertEquals(expected_scope_type, scope_mirror.scopeType()); 35 36 var scope_object = scope_mirror.scopeObject().value(); 37 38 for (var name in scope_expectations) { 39 var actual = scope_object[name]; 40 var expected = scope_expectations[name]; 41 assertEquals(expected, actual); 42 } 43 } 44 45 var ScopeType = debug.ScopeType; 46 47 var f1 = (function F1(x) { 48 function F2(y) { 49 var z = x + y; 50 with ({w: 5, v: "Capybara"}) { 51 var F3 = function(a, b) { 52 function F4(p) { 53 return p + a + b + z + w + v.length; 54 } 55 return F4; 56 } 57 return F3(4, 5); 58 } 59 } 60 return F2(17); 61 })(5); 62 63 var mirror = Debug.MakeMirror(f1); 64 65 assertEquals(6, mirror.scopeCount()); 66 67 CheckScope(mirror.scope(0), { a: 4, b: 5 }, ScopeType.Closure); 68 CheckScope(mirror.scope(1), { w: 5, v: "Capybara" }, ScopeType.With); 69 CheckScope(mirror.scope(2), { z: 22 }, ScopeType.Closure); 70 CheckScope(mirror.scope(3), { x: 5 }, ScopeType.Closure); 71 CheckScope(mirror.scope(4), {}, ScopeType.Script); 72 CheckScope(mirror.scope(5), {}, ScopeType.Global); 73 74 var f2 = function() { return 5; } 75 76 var mirror = Debug.MakeMirror(f2); 77 78 assertEquals(2, mirror.scopeCount()); 79 80 CheckScope(mirror.scope(0), {}, ScopeType.Script); 81 CheckScope(mirror.scope(1), {}, ScopeType.Global); 82 83 var f3 = (function F1(invisible_parameter) { 84 var invisible1 = 1; 85 var visible1 = 10; 86 return (function F2() { 87 var invisible2 = 2; 88 return (function F3() { 89 var visible2 = 20; 90 var invisible2 = 3; 91 return (function () {return visible1 + visible2 + visible1a;}); 92 })(); 93 })(); 94 })(5); 95 96 var mirror = Debug.MakeMirror(f3); 97 98 assertEquals(4, mirror.scopeCount()); 99 100 CheckScope(mirror.scope(0), { visible2: 20 }, ScopeType.Closure); 101 CheckScope(mirror.scope(1), { visible1: 10 }, ScopeType.Closure); 102 CheckScope(mirror.scope(2), {}, ScopeType.Script); 103 CheckScope(mirror.scope(3), {}, ScopeType.Global); 104 105 106 var f4 = (function One() { 107 try { 108 throw "I'm error 1"; 109 } catch (e1) { 110 try { 111 throw "I'm error 2"; 112 } catch (e2) { 113 return function GetError() { 114 return e1 + e2; 115 }; 116 } 117 } 118 })(); 119 120 var mirror = Debug.MakeMirror(f4); 121 122 assertEquals(4, mirror.scopeCount()); 123 124 CheckScope(mirror.scope(0), { e2: "I'm error 2" }, ScopeType.Catch); 125 CheckScope(mirror.scope(1), { e1: "I'm error 1" }, ScopeType.Catch); 126 CheckScope(mirror.scope(2), {}, ScopeType.Script); 127 CheckScope(mirror.scope(3), {}, ScopeType.Global); 128 129 130 var f5 = (function Raz(p1, p2) { 131 var p3 = p1 + p2; 132 return (function() { 133 var p4 = 20; 134 var p5 = 21; 135 var p6 = 22; 136 return eval("(function(p7){return p1 + p4 + p6 + p7})"); 137 })(); 138 })(1,2); 139 140 var mirror = Debug.MakeMirror(f5); 141 142 assertEquals(4, mirror.scopeCount()); 143 144 CheckScope(mirror.scope(0), { p4: 20, p6: 22 }, ScopeType.Closure); 145 CheckScope(mirror.scope(1), { p1: 1 }, ScopeType.Closure); 146 CheckScope(mirror.scope(2), {}, ScopeType.Script); 147 CheckScope(mirror.scope(3), {}, ScopeType.Global); 148 149 150 function CheckNoScopeVisible(f) { 151 var mirror = Debug.MakeMirror(f); 152 assertEquals(0, mirror.scopeCount()); 153 } 154 155 CheckNoScopeVisible(Number); 156 157 CheckNoScopeVisible(Function.toString); 158 159 // This getter is known to be implemented as closure. 160 CheckNoScopeVisible(new Error().__lookupGetter__("stack")); 161
