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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Flags: --expose-debug-as debug --noanalyze-environment-liveness | |
| 6 | |
| 7 var Debug = debug.Debug; | |
| 8 | |
| 9 function RunTest(name, formals_and_body, args, handler, continuation) { | |
| 10 var handler_called = false; | |
| 11 var exception = null; | |
| 12 | |
| 13 function listener(event, exec_state, event_data, data) { | |
| 14 try { | |
| 15 if (event == Debug.DebugEvent.Break) { | |
| 16 handler_called = true; | |
| 17 handler(exec_state); | |
| 18 } | |
| 19 } catch (e) { | |
| 20 exception = e; | |
| 21 } | |
| 22 } | |
| 23 | |
| 24 function run(thunk) { | |
| 25 handler_called = false; | |
| 26 exception = null; | |
| 27 | |
| 28 var res = thunk(); | |
| 29 if (continuation) | |
| 30 continuation(res); | |
| 31 | |
| 32 assertTrue(handler_called, "listener not called for " + name); | |
| 33 assertNull(exception, name + " / " + exception); | |
| 34 } | |
| 35 | |
| 36 var fun = Function.apply(null, formals_and_body); | |
| 37 var gen = (function*(){}).constructor.apply(null, formals_and_body); | |
| 38 | |
| 39 Debug.setListener(listener); | |
| 40 | |
| 41 run(function () { return fun.apply(null, args) }); | |
| 42 run(function () { return gen.apply(null, args).next().value }); | |
| 43 | |
| 44 // TODO(wingo): Uncomment after bug 2838 is fixed. | |
| 45 // Debug.setListener(null); | |
| 46 } | |
| 47 | |
| 48 // Check that two scope are the same. | |
| 49 function assertScopeMirrorEquals(scope1, scope2) { | |
| 50 assertEquals(scope1.scopeType(), scope2.scopeType()); | |
| 51 assertEquals(scope1.frameIndex(), scope2.frameIndex()); | |
| 52 assertEquals(scope1.scopeIndex(), scope2.scopeIndex()); | |
| 53 assertPropertiesEqual(scope1.scopeObject().value(), scope2.scopeObject().value
()); | |
| 54 } | |
| 55 | |
| 56 function CheckFastAllScopes(scopes, exec_state) { | |
| 57 var fast_all_scopes = exec_state.frame().allScopes(true); | |
| 58 var length = fast_all_scopes.length; | |
| 59 assertTrue(scopes.length >= length); | |
| 60 for (var i = 0; i < scopes.length && i < length; i++) { | |
| 61 var scope = fast_all_scopes[length - i - 1]; | |
| 62 assertTrue(scope.isScope()); | |
| 63 assertEquals(scopes[scopes.length - i - 1], scope.scopeType()); | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 // Check that the scope chain contains the expected types of scopes. | |
| 68 function CheckScopeChain(scopes, exec_state) { | |
| 69 var all_scopes = exec_state.frame().allScopes(); | |
| 70 assertEquals(scopes.length, exec_state.frame().scopeCount()); | |
| 71 assertEquals(scopes.length, all_scopes.length, "FrameMirror.allScopes length")
; | |
| 72 for (var i = 0; i < scopes.length; i++) { | |
| 73 var scope = exec_state.frame().scope(i); | |
| 74 assertTrue(scope.isScope()); | |
| 75 assertEquals(scopes[i], scope.scopeType()); | |
| 76 assertScopeMirrorEquals(all_scopes[i], scope); | |
| 77 | |
| 78 // Check the global object when hitting the global scope. | |
| 79 if (scopes[i] == debug.ScopeType.Global) { | |
| 80 // Objects don't have same class (one is "global", other is "Object", | |
| 81 // so just check the properties directly. | |
| 82 assertPropertiesEqual(this, scope.scopeObject().value()); | |
| 83 } | |
| 84 } | |
| 85 CheckFastAllScopes(scopes, exec_state); | |
| 86 } | |
| 87 | |
| 88 // Check that the content of the scope is as expected. For functions just check | |
| 89 // that there is a function. | |
| 90 function CheckScopeContent(content, number, exec_state) { | |
| 91 var scope = exec_state.frame().scope(number); | |
| 92 var count = 0; | |
| 93 for (var p in content) { | |
| 94 var property_mirror = scope.scopeObject().property(p); | |
| 95 assertFalse(property_mirror.isUndefined(), | |
| 96 'property ' + p + ' not found in scope'); | |
| 97 if (typeof(content[p]) === 'function') { | |
| 98 assertTrue(property_mirror.value().isFunction()); | |
| 99 } else { | |
| 100 assertEquals(content[p], property_mirror.value().value(), | |
| 101 'property ' + p + ' has unexpected value'); | |
| 102 } | |
| 103 count++; | |
| 104 } | |
| 105 | |
| 106 // 'arguments' and might be exposed in the local and closure scope. Just | |
| 107 // ignore this. | |
| 108 var scope_size = scope.scopeObject().properties().length; | |
| 109 if (!scope.scopeObject().property('arguments').isUndefined()) { | |
| 110 scope_size--; | |
| 111 } | |
| 112 // Skip property with empty name. | |
| 113 if (!scope.scopeObject().property('').isUndefined()) { | |
| 114 scope_size--; | |
| 115 } | |
| 116 | |
| 117 if (count != scope_size) { | |
| 118 print('Names found in scope:'); | |
| 119 var names = scope.scopeObject().propertyNames(); | |
| 120 for (var i = 0; i < names.length; i++) { | |
| 121 print(names[i]); | |
| 122 } | |
| 123 } | |
| 124 assertEquals(count, scope_size); | |
| 125 } | |
| 126 | |
| 127 | |
| 128 // Simple empty local scope. | |
| 129 RunTest("Local 1", | |
| 130 ['debugger;'], | |
| 131 [], | |
| 132 function (exec_state) { | |
| 133 CheckScopeChain([debug.ScopeType.Local, | |
| 134 debug.ScopeType.Script, | |
| 135 debug.ScopeType.Global], exec_state); | |
| 136 CheckScopeContent({}, 0, exec_state); | |
| 137 }); | |
| 138 | |
| 139 // Local scope with a parameter. | |
| 140 RunTest("Local 2", | |
| 141 ['a', 'debugger;'], | |
| 142 [1], | |
| 143 function (exec_state) { | |
| 144 CheckScopeChain([debug.ScopeType.Local, | |
| 145 debug.ScopeType.Script, | |
| 146 debug.ScopeType.Global], exec_state); | |
| 147 CheckScopeContent({a:1}, 0, exec_state); | |
| 148 }); | |
| 149 | |
| 150 // Local scope with a parameter and a local variable. | |
| 151 RunTest("Local 3", | |
| 152 ['a', 'var x = 3; debugger;'], | |
| 153 [1], | |
| 154 function (exec_state) { | |
| 155 CheckScopeChain([debug.ScopeType.Local, | |
| 156 debug.ScopeType.Script, | |
| 157 debug.ScopeType.Global], exec_state); | |
| 158 CheckScopeContent({a:1,x:3}, 0, exec_state); | |
| 159 }); | |
| 160 | |
| 161 // Local scope with parameters and local variables. | |
| 162 RunTest("Local 4", | |
| 163 ['a', 'b', 'var x = 3; var y = 4; debugger;'], | |
| 164 [1, 2], | |
| 165 function (exec_state) { | |
| 166 CheckScopeChain([debug.ScopeType.Local, | |
| 167 debug.ScopeType.Script, | |
| 168 debug.ScopeType.Global], exec_state); | |
| 169 CheckScopeContent({a:1,b:2,x:3,y:4}, 0, exec_state); | |
| 170 }); | |
| 171 | |
| 172 // Empty local scope with use of eval. | |
| 173 RunTest("Local 5", | |
| 174 ['eval(""); debugger;'], | |
| 175 [], | |
| 176 function (exec_state) { | |
| 177 CheckScopeChain([debug.ScopeType.Local, | |
| 178 debug.ScopeType.Script, | |
| 179 debug.ScopeType.Global], exec_state); | |
| 180 CheckScopeContent({}, 0, exec_state); | |
| 181 }); | |
| 182 | |
| 183 // Local introducing local variable using eval. | |
| 184 RunTest("Local 6", | |
| 185 ['eval("var i = 5"); debugger;'], | |
| 186 [], | |
| 187 function (exec_state) { | |
| 188 CheckScopeChain([debug.ScopeType.Local, | |
| 189 debug.ScopeType.Script, | |
| 190 debug.ScopeType.Global], exec_state); | |
| 191 CheckScopeContent({i:5}, 0, exec_state); | |
| 192 }); | |
| 193 | |
| 194 // Local scope with parameters, local variables and local variable introduced | |
| 195 // using eval. | |
| 196 RunTest("Local 7", | |
| 197 ['a', 'b', | |
| 198 "var x = 3; var y = 4;\n" | |
| 199 + "eval('var i = 5'); eval ('var j = 6');\n" | |
| 200 + "debugger;"], | |
| 201 [1, 2], | |
| 202 function (exec_state) { | |
| 203 CheckScopeChain([debug.ScopeType.Local, | |
| 204 debug.ScopeType.Script, | |
| 205 debug.ScopeType.Global], exec_state); | |
| 206 CheckScopeContent({a:1,b:2,x:3,y:4,i:5,j:6}, 0, exec_state); | |
| 207 }); | |
| 208 | |
| 209 // Nested empty with blocks. | |
| 210 RunTest("With", | |
| 211 ["with ({}) { with ({}) { debugger; } }"], | |
| 212 [], | |
| 213 function (exec_state) { | |
| 214 CheckScopeChain([debug.ScopeType.With, | |
| 215 debug.ScopeType.With, | |
| 216 debug.ScopeType.Local, | |
| 217 debug.ScopeType.Script, | |
| 218 debug.ScopeType.Global], exec_state); | |
| 219 CheckScopeContent({}, 0, exec_state); | |
| 220 CheckScopeContent({}, 1, exec_state); | |
| 221 }); | |
| 222 | |
| 223 // Simple closure formed by returning an inner function referering the outer | |
| 224 // functions arguments. | |
| 225 RunTest("Closure 1", | |
| 226 ['a', 'return function() { debugger; return a; }'], | |
| 227 [1], | |
| 228 function (exec_state) { | |
| 229 CheckScopeChain([debug.ScopeType.Local, | |
| 230 debug.ScopeType.Closure, | |
| 231 debug.ScopeType.Script, | |
| 232 debug.ScopeType.Global], exec_state); | |
| 233 CheckScopeContent({a:1}, 1, exec_state); | |
| 234 }, | |
| 235 function (result) { result() }); | |
| 236 | |
| 237 RunTest("The full monty", | |
| 238 ['a', 'b', | |
| 239 "var x = 3;\n" + | |
| 240 "var y = 4;\n" + | |
| 241 "eval('var i = 5');\n" + | |
| 242 "eval('var j = 6');\n" + | |
| 243 "function f(a, b) {\n" + | |
| 244 " var x = 9;\n" + | |
| 245 " var y = 10;\n" + | |
| 246 " eval('var i = 11');\n" + | |
| 247 " eval('var j = 12');\n" + | |
| 248 " with ({j:13}){\n" + | |
| 249 " return function() {\n" + | |
| 250 " var x = 14;\n" + | |
| 251 " with ({a:15}) {\n" + | |
| 252 " with ({b:16}) {\n" + | |
| 253 " debugger;\n" + | |
| 254 " some_global = a;\n" + | |
| 255 " return f;\n" + | |
| 256 " }\n" + | |
| 257 " }\n" + | |
| 258 " };\n" + | |
| 259 " }\n" + | |
| 260 "}\n" + | |
| 261 "return f(a, b);"], | |
| 262 [1, 2], | |
| 263 function (exec_state) { | |
| 264 CheckScopeChain([debug.ScopeType.With, | |
| 265 debug.ScopeType.With, | |
| 266 debug.ScopeType.Local, | |
| 267 debug.ScopeType.With, | |
| 268 debug.ScopeType.Closure, | |
| 269 debug.ScopeType.Closure, | |
| 270 debug.ScopeType.Script, | |
| 271 debug.ScopeType.Global], exec_state); | |
| 272 CheckScopeContent({b:16}, 0, exec_state); | |
| 273 CheckScopeContent({a:15}, 1, exec_state); | |
| 274 CheckScopeContent({x:14}, 2, exec_state); | |
| 275 CheckScopeContent({j:13}, 3, exec_state); | |
| 276 CheckScopeContent({a:1,b:2,x:9,y:10,i:11,j:12}, 4, exec_state); | |
| 277 CheckScopeContent({a:1,b:2,x:3,y:4,i:5,j:6,f:function(){}}, 5, | |
| 278 exec_state); | |
| 279 }, | |
| 280 function (result) { result() }); | |
| 281 | |
| 282 RunTest("Catch block 1", | |
| 283 ["try { throw 'Exception'; } catch (e) { debugger; }"], | |
| 284 [], | |
| 285 function (exec_state) { | |
| 286 CheckScopeChain([debug.ScopeType.Catch, | |
| 287 debug.ScopeType.Local, | |
| 288 debug.ScopeType.Script, | |
| 289 debug.ScopeType.Global], exec_state); | |
| 290 CheckScopeContent({e:'Exception'}, 0, exec_state); | |
| 291 }); | |
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Chromium Code Reviews
Issue 2566093002:
[debug-wrapper] migrate some scope related tests (Closed)
