Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 32 | var DebugCommandProcessor = debug.DebugCommandProcessor; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 33 | |
| 34 | // Accepts a function/closure 'fun' that must have a debugger statement inside. |
| 35 | // A variable 'variable_name' must be initialized before debugger statement |
| 36 | // and returned after the statement. The test will alter variable value when |
| 37 | // on debugger statement and check that returned value reflects the change. |
| 38 | function RunPauseTest(scope_number, expected_old_result, variable_name, |
| 39 | new_value, expected_new_result, fun) { |
| 40 | var actual_old_result = fun(); |
| 41 | assertEquals(expected_old_result, actual_old_result); |
| 42 | |
| 43 | var listener_delegate; |
| 44 | var listener_called = false; |
| 45 | var exception = null; |
| 46 | |
| 47 | function listener_delegate(exec_state) { |
| 48 | var scope = exec_state.frame(0).scope(scope_number); |
| 49 | scope.setVariableValue(variable_name, new_value); |
| 50 | } |
| 51 | |
| 52 | function listener(event, exec_state, event_data, data) { |
| 53 | try { |
| 54 | if (event == Debug.DebugEvent.Break) { |
| 55 | listener_called = true; |
| 56 | listener_delegate(exec_state); |
| 57 | } |
| 58 | } catch (e) { |
| 59 | exception = e; |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | // Add the debug event listener. |
| 64 | Debug.setListener(listener); |
| 65 | |
| 66 | var actual_new_value; |
| 67 | try { |
| 68 | actual_new_result = fun(); |
| 69 | } finally { |
| 70 | Debug.setListener(null); |
| 71 | } |
| 72 | |
| 73 | if (exception != null) { |
| 74 | assertUnreachable("Exception in listener\n" + exception.stack); |
| 75 | } |
| 76 | assertTrue(listener_called); |
| 77 | |
| 78 | assertEquals(expected_new_result, actual_new_result); |
| 79 | } |
| 80 | |
| 81 | // Accepts a closure 'fun' that returns a variable from it's outer scope. |
| 82 | // The test changes the value of variable via the handle to function and checks |
| 83 | // that the return value changed accordingly. |
| 84 | function RunClosureTest(scope_number, expected_old_result, variable_name, |
| 85 | new_value, expected_new_result, fun) { |
| 86 | var actual_old_result = fun(); |
| 87 | assertEquals(expected_old_result, actual_old_result); |
| 88 | |
| 89 | var fun_mirror = Debug.MakeMirror(fun); |
| 90 | |
| 91 | var scope = fun_mirror.scope(scope_number); |
| 92 | scope.setVariableValue(variable_name, new_value); |
| 93 | |
| 94 | var actual_new_result = fun(); |
| 95 | |
| 96 | assertEquals(expected_new_result, actual_new_result); |
| 97 | } |
| 98 | |
| 99 | |
| 100 | function ClosureTestCase(scope_index, old_result, variable_name, new_value, |
| 101 | new_result, success_expected, factory) { |
| 102 | this.scope_index_ = scope_index; |
| 103 | this.old_result_ = old_result; |
| 104 | this.variable_name_ = variable_name; |
| 105 | this.new_value_ = new_value; |
| 106 | this.new_result_ = new_result; |
| 107 | this.success_expected_ = success_expected; |
| 108 | this.factory_ = factory; |
| 109 | } |
| 110 | |
| 111 | ClosureTestCase.prototype.run_pause_test = function() { |
| 112 | var th = this; |
| 113 | var fun = this.factory_(true); |
| 114 | this.run_and_catch_(function() { |
| 115 | RunPauseTest(th.scope_index_ + 1, th.old_result_, th.variable_name_, |
| 116 | th.new_value_, th.new_result_, fun); |
| 117 | }); |
| 118 | } |
| 119 | |
| 120 | ClosureTestCase.prototype.run_closure_test = function() { |
| 121 | var th = this; |
| 122 | var fun = this.factory_(false); |
| 123 | this.run_and_catch_(function() { |
| 124 | RunClosureTest(th.scope_index_, th.old_result_, th.variable_name_, |
| 125 | th.new_value_, th.new_result_, fun); |
| 126 | }); |
| 127 | } |
| 128 | |
| 129 | ClosureTestCase.prototype.run_and_catch_ = function(runnable) { |
| 130 | if (this.success_expected_) { |
| 131 | runnable(); |
| 132 | } else { |
| 133 | assertThrows(runnable); |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | |
| 138 | // Test scopes visible from closures. |
| 139 | |
| 140 | var closure_test_cases = [ |
| 141 | new ClosureTestCase(0, 'cat', 'v1', 5, 5, true, |
| 142 | function Factory(debug_stop) { |
| 143 | var v1 = 'cat'; |
| 144 | return function() { |
| 145 | if (debug_stop) debugger; |
| 146 | return v1; |
| 147 | } |
| 148 | }), |
| 149 | |
| 150 | new ClosureTestCase(0, 4, 't', 7, 9, true, function Factory(debug_stop) { |
| 151 | var t = 2; |
| 152 | var r = eval("t"); |
| 153 | return function() { |
| 154 | if (debug_stop) debugger; |
| 155 | return r + t; |
| 156 | } |
| 157 | }), |
| 158 | |
| 159 | new ClosureTestCase(0, 6, 't', 10, 13, true, function Factory(debug_stop) { |
| 160 | var t = 2; |
| 161 | var r = eval("t = 3"); |
| 162 | return function() { |
| 163 | if (debug_stop) debugger; |
| 164 | return r + t; |
| 165 | } |
| 166 | }), |
| 167 | |
| 168 | new ClosureTestCase(0, 17, 's', 'Bird', 'Bird', true, |
| 169 | function Factory(debug_stop) { |
| 170 | eval("var s = 17"); |
| 171 | return function() { |
| 172 | if (debug_stop) debugger; |
| 173 | return s; |
| 174 | } |
| 175 | }), |
| 176 | |
| 177 | new ClosureTestCase(2, 'capybara', 'foo', 77, 77, true, |
| 178 | function Factory(debug_stop) { |
| 179 | var foo = "capybara"; |
| 180 | return (function() { |
| 181 | var bar = "fish"; |
| 182 | try { |
| 183 | throw {name: "test exception"}; |
| 184 | } catch (e) { |
| 185 | return function() { |
| 186 | if (debug_stop) debugger; |
| 187 | bar = "beast"; |
| 188 | return foo; |
| 189 | } |
| 190 | } |
| 191 | })(); |
| 192 | }), |
| 193 | |
| 194 | new ClosureTestCase(0, 'AlphaBeta', 'eee', 5, '5Beta', true, |
| 195 | function Factory(debug_stop) { |
| 196 | var foo = "Beta"; |
| 197 | return (function() { |
| 198 | var bar = "fish"; |
| 199 | try { |
| 200 | throw "Alpha"; |
| 201 | } catch (eee) { |
| 202 | return function() { |
| 203 | if (debug_stop) debugger; |
| 204 | return eee + foo; |
| 205 | } |
| 206 | } |
| 207 | })(); |
| 208 | }) |
| 209 | ]; |
| 210 | |
| 211 | for (var i = 0; i < closure_test_cases.length; i++) { |
| 212 | closure_test_cases[i].run_pause_test(); |
| 213 | } |
| 214 | |
| 215 | for (var i = 0; i < closure_test_cases.length; i++) { |
| 216 | closure_test_cases[i].run_closure_test(); |
| 217 | } |
| 218 | |
| 219 | |
| 220 | // Test local scope. |
| 221 | |
| 222 | RunPauseTest(0, 'HelloYou', 'u', 'We', 'HelloWe', (function Factory() { |
| 223 | return function() { |
| 224 | var u = "You"; |
| 225 | var v = "Hello"; |
| 226 | debugger; |
| 227 | return v + u; |
| 228 | } |
| 229 | })()); |
| 230 | |
| 231 | RunPauseTest(0, 'Helloworld', 'p', 'GoodBye', 'HelloGoodBye', |
| 232 | (function Factory() { |
| 233 | function H(p) { |
| 234 | var v = "Hello"; |
| 235 | debugger; |
| 236 | return v + p; |
| 237 | } |
| 238 | return function() { |
| 239 | return H("world"); |
| 240 | } |
| 241 | })()); |
| 242 | |
| 243 | RunPauseTest(0, 'mouse', 'v1', 'dog', 'dog', (function Factory() { |
| 244 | return function() { |
| 245 | var v1 = 'cat'; |
| 246 | eval("v1 = 'mouse'"); |
| 247 | debugger; |
| 248 | return v1; |
| 249 | } |
| 250 | })()); |
| 251 | |
| 252 | RunPauseTest(0, 'mouse', 'v1', 'dog', 'dog', (function Factory() { |
| 253 | return function() { |
| 254 | eval("var v1 = 'mouse'"); |
| 255 | debugger; |
| 256 | return v1; |
| 257 | } |
| 258 | })()); |
| 259 | |
| 260 | |
| 261 | // Check that we correctly update local variable that |
| 262 | // is referenced from an inner closure. |
| 263 | RunPauseTest(0, 'Blue', 'v', 'Green', 'Green', (function Factory() { |
| 264 | return function() { |
| 265 | function A() { |
| 266 | var v = "Blue"; |
| 267 | function Inner() { |
| 268 | return void v; |
| 269 | } |
| 270 | debugger; |
| 271 | return v; |
| 272 | } |
| 273 | return A(); |
| 274 | } |
| 275 | })()); |
| 276 | |
| 277 | // Check that we correctly update parameter, that is known to be stored |
| 278 | // both on stack and in heap. |
| 279 | RunPauseTest(0, 5, 'p', 2012, 2012, (function Factory() { |
| 280 | return function() { |
| 281 | function A(p) { |
| 282 | function Inner() { |
| 283 | return void p; |
| 284 | } |
| 285 | debugger; |
| 286 | return p; |
| 287 | } |
| 288 | return A(5); |
| 289 | } |
| 290 | })()); |
| 291 | |
| 292 | |
| 293 | // Test value description protocol JSON |
| 294 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 295 | assertEquals(true, DebugCommandProcessor.resolveValue_({value: true})); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 296 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 297 | assertSame(null, DebugCommandProcessor.resolveValue_({type: "null"})); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 298 | assertSame(undefined, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 299 | DebugCommandProcessor.resolveValue_({type: "undefined"})); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 300 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 301 | assertSame("123", DebugCommandProcessor.resolveValue_( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 302 | {type: "string", stringDescription: "123"})); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 303 | assertSame(123, DebugCommandProcessor.resolveValue_( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 304 | {type: "number", stringDescription: "123"})); |
| 305 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 306 | assertSame(Number, DebugCommandProcessor.resolveValue_( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 307 | {handle: Debug.MakeMirror(Number).handle()})); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 308 | assertSame(RunClosureTest, DebugCommandProcessor.resolveValue_( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 309 | {handle: Debug.MakeMirror(RunClosureTest).handle()})); |