Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2012 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 | (function (global, utils) { |
| 6 | "use strict"; |
| 7 | |
| 8 | // ---------------------------------------------------------------------------- |
| 9 | // Imports |
| 10 | |
| 11 | var FrameMirror = global.FrameMirror; |
| 12 | var GlobalArray = global.Array; |
| 13 | var GlobalRegExp = global.RegExp; |
| 14 | var IsNaN = global.isNaN; |
| 15 | var JSONParse = global.JSON.parse; |
| 16 | var JSONStringify = global.JSON.stringify; |
| 17 | var LookupMirror = global.LookupMirror; |
| 18 | var MakeError; |
| 19 | var MakeTypeError; |
| 20 | var MakeMirror = global.MakeMirror; |
| 21 | var MakeMirrorSerializer = global.MakeMirrorSerializer; |
| 22 | var MathMin = global.Math.min; |
| 23 | var Mirror = global.Mirror; |
| 24 | var MirrorType; |
| 25 | var ParseInt = global.parseInt; |
| 26 | var ValueMirror = global.ValueMirror; |
| 27 | |
| 28 | utils.Import(function(from) { |
| 29 | MakeError = from.MakeError; |
| 30 | MakeTypeError = from.MakeTypeError; |
| 31 | MirrorType = from.MirrorType; |
| 32 | }); |
| 33 | |
| 34 | //---------------------------------------------------------------------------- |
| 35 | |
| 36 | // Default number of frames to include in the response to backtrace request. |
| 37 | var kDefaultBacktraceLength = 10; |
| 38 | |
| 39 | var Debug = {}; |
| 40 | |
| 41 | // Regular expression to skip "crud" at the beginning of a source line which is |
| 42 | // not really code. Currently the regular expression matches whitespace and |
| 43 | // comments. |
| 44 | var sourceLineBeginningSkip = /^(?:\s*(?:\/\*.*?\*\/)*)*/; |
| 45 | |
| 46 | // Debug events which can occour in the V8 JavaScript engine. These originate |
| 47 | // from the API include file debug.h. |
| 48 | Debug.DebugEvent = { Break: 1, |
| 49 | Exception: 2, |
| 50 | NewFunction: 3, |
| 51 | BeforeCompile: 4, |
| 52 | AfterCompile: 5, |
| 53 | CompileError: 6, |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 54 | AsyncTaskEvent: 7 }; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 55 | |
| 56 | // Types of exceptions that can be broken upon. |
| 57 | Debug.ExceptionBreak = { Caught : 0, |
| 58 | Uncaught: 1 }; |
| 59 | |
| 60 | // The different types of steps. |
| 61 | Debug.StepAction = { StepOut: 0, |
| 62 | StepNext: 1, |
| 63 | StepIn: 2, |
| 64 | StepFrame: 3 }; |
| 65 | |
| 66 | // The different types of scripts matching enum ScriptType in objects.h. |
| 67 | Debug.ScriptType = { Native: 0, |
| 68 | Extension: 1, |
| 69 | Normal: 2 }; |
| 70 | |
| 71 | // The different types of script compilations matching enum |
| 72 | // Script::CompilationType in objects.h. |
| 73 | Debug.ScriptCompilationType = { Host: 0, |
| 74 | Eval: 1, |
| 75 | JSON: 2 }; |
| 76 | |
| 77 | // The different script break point types. |
| 78 | Debug.ScriptBreakPointType = { ScriptId: 0, |
| 79 | ScriptName: 1, |
| 80 | ScriptRegExp: 2 }; |
| 81 | |
| 82 | // The different types of breakpoint position alignments. |
| 83 | // Must match BreakPositionAlignment in debug.h. |
| 84 | Debug.BreakPositionAlignment = { |
| 85 | Statement: 0, |
| 86 | BreakPosition: 1 |
| 87 | }; |
| 88 | |
| 89 | function ScriptTypeFlag(type) { |
| 90 | return (1 << type); |
| 91 | } |
| 92 | |
| 93 | // Globals. |
| 94 | var next_response_seq = 0; |
| 95 | var next_break_point_number = 1; |
| 96 | var break_points = []; |
| 97 | var script_break_points = []; |
| 98 | var debugger_flags = { |
| 99 | breakPointsActive: { |
| 100 | value: true, |
| 101 | getValue: function() { return this.value; }, |
| 102 | setValue: function(value) { |
| 103 | this.value = !!value; |
| 104 | %SetBreakPointsActive(this.value); |
| 105 | } |
| 106 | }, |
| 107 | breakOnCaughtException: { |
| 108 | getValue: function() { return Debug.isBreakOnException(); }, |
| 109 | setValue: function(value) { |
| 110 | if (value) { |
| 111 | Debug.setBreakOnException(); |
| 112 | } else { |
| 113 | Debug.clearBreakOnException(); |
| 114 | } |
| 115 | } |
| 116 | }, |
| 117 | breakOnUncaughtException: { |
| 118 | getValue: function() { return Debug.isBreakOnUncaughtException(); }, |
| 119 | setValue: function(value) { |
| 120 | if (value) { |
| 121 | Debug.setBreakOnUncaughtException(); |
| 122 | } else { |
| 123 | Debug.clearBreakOnUncaughtException(); |
| 124 | } |
| 125 | } |
| 126 | }, |
| 127 | }; |
| 128 | |
| 129 | |
| 130 | // Create a new break point object and add it to the list of break points. |
| 131 | function MakeBreakPoint(source_position, opt_script_break_point) { |
| 132 | var break_point = new BreakPoint(source_position, opt_script_break_point); |
| 133 | break_points.push(break_point); |
| 134 | return break_point; |
| 135 | } |
| 136 | |
| 137 | |
| 138 | // Object representing a break point. |
| 139 | // NOTE: This object does not have a reference to the function having break |
| 140 | // point as this would cause function not to be garbage collected when it is |
| 141 | // not used any more. We do not want break points to keep functions alive. |
| 142 | function BreakPoint(source_position, opt_script_break_point) { |
| 143 | this.source_position_ = source_position; |
| 144 | if (opt_script_break_point) { |
| 145 | this.script_break_point_ = opt_script_break_point; |
| 146 | } else { |
| 147 | this.number_ = next_break_point_number++; |
| 148 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 149 | this.active_ = true; |
| 150 | this.condition_ = null; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | |
| 154 | BreakPoint.prototype.number = function() { |
| 155 | return this.number_; |
| 156 | }; |
| 157 | |
| 158 | |
| 159 | BreakPoint.prototype.func = function() { |
| 160 | return this.func_; |
| 161 | }; |
| 162 | |
| 163 | |
| 164 | BreakPoint.prototype.source_position = function() { |
| 165 | return this.source_position_; |
| 166 | }; |
| 167 | |
| 168 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 169 | BreakPoint.prototype.active = function() { |
| 170 | if (this.script_break_point()) { |
| 171 | return this.script_break_point().active(); |
| 172 | } |
| 173 | return this.active_; |
| 174 | }; |
| 175 | |
| 176 | |
| 177 | BreakPoint.prototype.condition = function() { |
| 178 | if (this.script_break_point() && this.script_break_point().condition()) { |
| 179 | return this.script_break_point().condition(); |
| 180 | } |
| 181 | return this.condition_; |
| 182 | }; |
| 183 | |
| 184 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 185 | BreakPoint.prototype.script_break_point = function() { |
| 186 | return this.script_break_point_; |
| 187 | }; |
| 188 | |
| 189 | |
| 190 | BreakPoint.prototype.enable = function() { |
| 191 | this.active_ = true; |
| 192 | }; |
| 193 | |
| 194 | |
| 195 | BreakPoint.prototype.disable = function() { |
| 196 | this.active_ = false; |
| 197 | }; |
| 198 | |
| 199 | |
| 200 | BreakPoint.prototype.setCondition = function(condition) { |
| 201 | this.condition_ = condition; |
| 202 | }; |
| 203 | |
| 204 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 205 | BreakPoint.prototype.isTriggered = function(exec_state) { |
| 206 | // Break point not active - not triggered. |
| 207 | if (!this.active()) return false; |
| 208 | |
| 209 | // Check for conditional break point. |
| 210 | if (this.condition()) { |
| 211 | // If break point has condition try to evaluate it in the top frame. |
| 212 | try { |
| 213 | var mirror = exec_state.frame(0).evaluate(this.condition()); |
| 214 | // If no sensible mirror or non true value break point not triggered. |
| 215 | if (!(mirror instanceof ValueMirror) || !mirror.value_) { |
| 216 | return false; |
| 217 | } |
| 218 | } catch (e) { |
| 219 | // Exception evaluating condition counts as not triggered. |
| 220 | return false; |
| 221 | } |
| 222 | } |
| 223 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 224 | // Break point triggered. |
| 225 | return true; |
| 226 | }; |
| 227 | |
| 228 | |
| 229 | // Function called from the runtime when a break point is hit. Returns true if |
| 230 | // the break point is triggered and supposed to break execution. |
| 231 | function IsBreakPointTriggered(break_id, break_point) { |
| 232 | return break_point.isTriggered(MakeExecutionState(break_id)); |
| 233 | } |
| 234 | |
| 235 | |
| 236 | // Object representing a script break point. The script is referenced by its |
| 237 | // script name or script id and the break point is represented as line and |
| 238 | // column. |
| 239 | function ScriptBreakPoint(type, script_id_or_name, opt_line, opt_column, |
| 240 | opt_groupId, opt_position_alignment) { |
| 241 | this.type_ = type; |
| 242 | if (type == Debug.ScriptBreakPointType.ScriptId) { |
| 243 | this.script_id_ = script_id_or_name; |
| 244 | } else if (type == Debug.ScriptBreakPointType.ScriptName) { |
| 245 | this.script_name_ = script_id_or_name; |
| 246 | } else if (type == Debug.ScriptBreakPointType.ScriptRegExp) { |
| 247 | this.script_regexp_object_ = new GlobalRegExp(script_id_or_name); |
| 248 | } else { |
| 249 | throw MakeError(kDebugger, "Unexpected breakpoint type " + type); |
| 250 | } |
| 251 | this.line_ = opt_line || 0; |
| 252 | this.column_ = opt_column; |
| 253 | this.groupId_ = opt_groupId; |
| 254 | this.position_alignment_ = IS_UNDEFINED(opt_position_alignment) |
| 255 | ? Debug.BreakPositionAlignment.Statement : opt_position_alignment; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 256 | this.active_ = true; |
| 257 | this.condition_ = null; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 258 | this.break_points_ = []; |
| 259 | } |
| 260 | |
| 261 | |
| 262 | // Creates a clone of script breakpoint that is linked to another script. |
| 263 | ScriptBreakPoint.prototype.cloneForOtherScript = function (other_script) { |
| 264 | var copy = new ScriptBreakPoint(Debug.ScriptBreakPointType.ScriptId, |
| 265 | other_script.id, this.line_, this.column_, this.groupId_, |
| 266 | this.position_alignment_); |
| 267 | copy.number_ = next_break_point_number++; |
| 268 | script_break_points.push(copy); |
| 269 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 270 | copy.active_ = this.active_; |
| 271 | copy.condition_ = this.condition_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 272 | return copy; |
| 273 | }; |
| 274 | |
| 275 | |
| 276 | ScriptBreakPoint.prototype.number = function() { |
| 277 | return this.number_; |
| 278 | }; |
| 279 | |
| 280 | |
| 281 | ScriptBreakPoint.prototype.groupId = function() { |
| 282 | return this.groupId_; |
| 283 | }; |
| 284 | |
| 285 | |
| 286 | ScriptBreakPoint.prototype.type = function() { |
| 287 | return this.type_; |
| 288 | }; |
| 289 | |
| 290 | |
| 291 | ScriptBreakPoint.prototype.script_id = function() { |
| 292 | return this.script_id_; |
| 293 | }; |
| 294 | |
| 295 | |
| 296 | ScriptBreakPoint.prototype.script_name = function() { |
| 297 | return this.script_name_; |
| 298 | }; |
| 299 | |
| 300 | |
| 301 | ScriptBreakPoint.prototype.script_regexp_object = function() { |
| 302 | return this.script_regexp_object_; |
| 303 | }; |
| 304 | |
| 305 | |
| 306 | ScriptBreakPoint.prototype.line = function() { |
| 307 | return this.line_; |
| 308 | }; |
| 309 | |
| 310 | |
| 311 | ScriptBreakPoint.prototype.column = function() { |
| 312 | return this.column_; |
| 313 | }; |
| 314 | |
| 315 | |
| 316 | ScriptBreakPoint.prototype.actual_locations = function() { |
| 317 | var locations = []; |
| 318 | for (var i = 0; i < this.break_points_.length; i++) { |
| 319 | locations.push(this.break_points_[i].actual_location); |
| 320 | } |
| 321 | return locations; |
| 322 | }; |
| 323 | |
| 324 | |
| 325 | ScriptBreakPoint.prototype.update_positions = function(line, column) { |
| 326 | this.line_ = line; |
| 327 | this.column_ = column; |
| 328 | }; |
| 329 | |
| 330 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 331 | ScriptBreakPoint.prototype.active = function() { |
| 332 | return this.active_; |
| 333 | }; |
| 334 | |
| 335 | |
| 336 | ScriptBreakPoint.prototype.condition = function() { |
| 337 | return this.condition_; |
| 338 | }; |
| 339 | |
| 340 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 341 | ScriptBreakPoint.prototype.enable = function() { |
| 342 | this.active_ = true; |
| 343 | }; |
| 344 | |
| 345 | |
| 346 | ScriptBreakPoint.prototype.disable = function() { |
| 347 | this.active_ = false; |
| 348 | }; |
| 349 | |
| 350 | |
| 351 | ScriptBreakPoint.prototype.setCondition = function(condition) { |
| 352 | this.condition_ = condition; |
| 353 | }; |
| 354 | |
| 355 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 356 | // Check whether a script matches this script break point. Currently this is |
| 357 | // only based on script name. |
| 358 | ScriptBreakPoint.prototype.matchesScript = function(script) { |
| 359 | if (this.type_ == Debug.ScriptBreakPointType.ScriptId) { |
| 360 | return this.script_id_ == script.id; |
| 361 | } else { |
| 362 | // We might want to account columns here as well. |
| 363 | if (!(script.line_offset <= this.line_ && |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 364 | this.line_ < script.line_offset + %ScriptLineCount(script))) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 365 | return false; |
| 366 | } |
| 367 | if (this.type_ == Debug.ScriptBreakPointType.ScriptName) { |
| 368 | return this.script_name_ == script.nameOrSourceURL(); |
| 369 | } else if (this.type_ == Debug.ScriptBreakPointType.ScriptRegExp) { |
| 370 | return this.script_regexp_object_.test(script.nameOrSourceURL()); |
| 371 | } else { |
| 372 | throw MakeError(kDebugger, "Unexpected breakpoint type " + this.type_); |
| 373 | } |
| 374 | } |
| 375 | }; |
| 376 | |
| 377 | |
| 378 | // Set the script break point in a script. |
| 379 | ScriptBreakPoint.prototype.set = function (script) { |
| 380 | var column = this.column(); |
| 381 | var line = this.line(); |
| 382 | // If the column is undefined the break is on the line. To help locate the |
| 383 | // first piece of breakable code on the line try to find the column on the |
| 384 | // line which contains some source. |
| 385 | if (IS_UNDEFINED(column)) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 386 | var source_line = %ScriptSourceLine(script, line || script.line_offset); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 387 | |
| 388 | // Allocate array for caching the columns where the actual source starts. |
| 389 | if (!script.sourceColumnStart_) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 390 | script.sourceColumnStart_ = new GlobalArray(%ScriptLineCount(script)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | // Fill cache if needed and get column where the actual source starts. |
| 394 | if (IS_UNDEFINED(script.sourceColumnStart_[line])) { |
| 395 | script.sourceColumnStart_[line] = |
| 396 | source_line.match(sourceLineBeginningSkip)[0].length; |
| 397 | } |
| 398 | column = script.sourceColumnStart_[line]; |
| 399 | } |
| 400 | |
| 401 | // Convert the line and column into an absolute position within the script. |
| 402 | var position = Debug.findScriptSourcePosition(script, this.line(), column); |
| 403 | |
| 404 | // If the position is not found in the script (the script might be shorter |
| 405 | // than it used to be) just ignore it. |
| 406 | if (IS_NULL(position)) return; |
| 407 | |
| 408 | // Create a break point object and set the break point. |
| 409 | var break_point = MakeBreakPoint(position, this); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 410 | var actual_position = %SetScriptBreakPoint(script, position, |
| 411 | this.position_alignment_, |
| 412 | break_point); |
| 413 | if (IS_UNDEFINED(actual_position)) { |
| 414 | actual_position = position; |
| 415 | } |
| 416 | var actual_location = script.locationFromPosition(actual_position, true); |
| 417 | break_point.actual_location = { line: actual_location.line, |
| 418 | column: actual_location.column, |
| 419 | script_id: script.id }; |
| 420 | this.break_points_.push(break_point); |
| 421 | return break_point; |
| 422 | }; |
| 423 | |
| 424 | |
| 425 | // Clear all the break points created from this script break point |
| 426 | ScriptBreakPoint.prototype.clear = function () { |
| 427 | var remaining_break_points = []; |
| 428 | for (var i = 0; i < break_points.length; i++) { |
| 429 | if (break_points[i].script_break_point() && |
| 430 | break_points[i].script_break_point() === this) { |
| 431 | %ClearBreakPoint(break_points[i]); |
| 432 | } else { |
| 433 | remaining_break_points.push(break_points[i]); |
| 434 | } |
| 435 | } |
| 436 | break_points = remaining_break_points; |
| 437 | this.break_points_ = []; |
| 438 | }; |
| 439 | |
| 440 | |
| 441 | // Function called from runtime when a new script is compiled to set any script |
| 442 | // break points set in this script. |
| 443 | function UpdateScriptBreakPoints(script) { |
| 444 | for (var i = 0; i < script_break_points.length; i++) { |
| 445 | var break_point = script_break_points[i]; |
| 446 | if ((break_point.type() == Debug.ScriptBreakPointType.ScriptName || |
| 447 | break_point.type() == Debug.ScriptBreakPointType.ScriptRegExp) && |
| 448 | break_point.matchesScript(script)) { |
| 449 | break_point.set(script); |
| 450 | } |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | |
| 455 | function GetScriptBreakPoints(script) { |
| 456 | var result = []; |
| 457 | for (var i = 0; i < script_break_points.length; i++) { |
| 458 | if (script_break_points[i].matchesScript(script)) { |
| 459 | result.push(script_break_points[i]); |
| 460 | } |
| 461 | } |
| 462 | return result; |
| 463 | } |
| 464 | |
| 465 | |
| 466 | Debug.setListener = function(listener, opt_data) { |
| 467 | if (!IS_FUNCTION(listener) && !IS_UNDEFINED(listener) && !IS_NULL(listener)) { |
| 468 | throw MakeTypeError(kDebuggerType); |
| 469 | } |
| 470 | %SetDebugEventListener(listener, opt_data); |
| 471 | }; |
| 472 | |
| 473 | |
| 474 | Debug.breakLocations = function(f, opt_position_aligment) { |
| 475 | if (!IS_FUNCTION(f)) throw MakeTypeError(kDebuggerType); |
| 476 | var position_aligment = IS_UNDEFINED(opt_position_aligment) |
| 477 | ? Debug.BreakPositionAlignment.Statement : opt_position_aligment; |
| 478 | return %GetBreakLocations(f, position_aligment); |
| 479 | }; |
| 480 | |
| 481 | // Returns a Script object. If the parameter is a function the return value |
| 482 | // is the script in which the function is defined. If the parameter is a string |
| 483 | // the return value is the script for which the script name has that string |
| 484 | // value. If it is a regexp and there is a unique script whose name matches |
| 485 | // we return that, otherwise undefined. |
| 486 | Debug.findScript = function(func_or_script_name) { |
| 487 | if (IS_FUNCTION(func_or_script_name)) { |
| 488 | return %FunctionGetScript(func_or_script_name); |
| 489 | } else if (IS_REGEXP(func_or_script_name)) { |
| 490 | var scripts = Debug.scripts(); |
| 491 | var last_result = null; |
| 492 | var result_count = 0; |
| 493 | for (var i in scripts) { |
| 494 | var script = scripts[i]; |
| 495 | if (func_or_script_name.test(script.name)) { |
| 496 | last_result = script; |
| 497 | result_count++; |
| 498 | } |
| 499 | } |
| 500 | // Return the unique script matching the regexp. If there are more |
| 501 | // than one we don't return a value since there is no good way to |
| 502 | // decide which one to return. Returning a "random" one, say the |
| 503 | // first, would introduce nondeterminism (or something close to it) |
| 504 | // because the order is the heap iteration order. |
| 505 | if (result_count == 1) { |
| 506 | return last_result; |
| 507 | } else { |
| 508 | return UNDEFINED; |
| 509 | } |
| 510 | } else { |
| 511 | return %GetScript(func_or_script_name); |
| 512 | } |
| 513 | }; |
| 514 | |
| 515 | // Returns the script source. If the parameter is a function the return value |
| 516 | // is the script source for the script in which the function is defined. If the |
| 517 | // parameter is a string the return value is the script for which the script |
| 518 | // name has that string value. |
| 519 | Debug.scriptSource = function(func_or_script_name) { |
| 520 | return this.findScript(func_or_script_name).source; |
| 521 | }; |
| 522 | |
| 523 | |
| 524 | Debug.source = function(f) { |
| 525 | if (!IS_FUNCTION(f)) throw MakeTypeError(kDebuggerType); |
| 526 | return %FunctionGetSourceCode(f); |
| 527 | }; |
| 528 | |
| 529 | |
| 530 | Debug.sourcePosition = function(f) { |
| 531 | if (!IS_FUNCTION(f)) throw MakeTypeError(kDebuggerType); |
| 532 | return %FunctionGetScriptSourcePosition(f); |
| 533 | }; |
| 534 | |
| 535 | |
| 536 | Debug.findFunctionSourceLocation = function(func, opt_line, opt_column) { |
| 537 | var script = %FunctionGetScript(func); |
| 538 | var script_offset = %FunctionGetScriptSourcePosition(func); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 539 | return %ScriptLocationFromLine(script, opt_line, opt_column, script_offset); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 540 | }; |
| 541 | |
| 542 | |
| 543 | // Returns the character position in a script based on a line number and an |
| 544 | // optional position within that line. |
| 545 | Debug.findScriptSourcePosition = function(script, opt_line, opt_column) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 546 | var location = %ScriptLocationFromLine(script, opt_line, opt_column, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 547 | return location ? location.position : null; |
| 548 | }; |
| 549 | |
| 550 | |
| 551 | Debug.findBreakPoint = function(break_point_number, remove) { |
| 552 | var break_point; |
| 553 | for (var i = 0; i < break_points.length; i++) { |
| 554 | if (break_points[i].number() == break_point_number) { |
| 555 | break_point = break_points[i]; |
| 556 | // Remove the break point from the list if requested. |
| 557 | if (remove) { |
| 558 | break_points.splice(i, 1); |
| 559 | } |
| 560 | break; |
| 561 | } |
| 562 | } |
| 563 | if (break_point) { |
| 564 | return break_point; |
| 565 | } else { |
| 566 | return this.findScriptBreakPoint(break_point_number, remove); |
| 567 | } |
| 568 | }; |
| 569 | |
| 570 | Debug.findBreakPointActualLocations = function(break_point_number) { |
| 571 | for (var i = 0; i < script_break_points.length; i++) { |
| 572 | if (script_break_points[i].number() == break_point_number) { |
| 573 | return script_break_points[i].actual_locations(); |
| 574 | } |
| 575 | } |
| 576 | for (var i = 0; i < break_points.length; i++) { |
| 577 | if (break_points[i].number() == break_point_number) { |
| 578 | return [break_points[i].actual_location]; |
| 579 | } |
| 580 | } |
| 581 | return []; |
| 582 | }; |
| 583 | |
| 584 | Debug.setBreakPoint = function(func, opt_line, opt_column, opt_condition) { |
| 585 | if (!IS_FUNCTION(func)) throw MakeTypeError(kDebuggerType); |
| 586 | // Break points in API functions are not supported. |
| 587 | if (%FunctionIsAPIFunction(func)) { |
| 588 | throw MakeError(kDebugger, 'Cannot set break point in native code.'); |
| 589 | } |
| 590 | // Find source position relative to start of the function |
| 591 | var break_position = |
| 592 | this.findFunctionSourceLocation(func, opt_line, opt_column).position; |
| 593 | var source_position = break_position - this.sourcePosition(func); |
| 594 | // Find the script for the function. |
| 595 | var script = %FunctionGetScript(func); |
| 596 | // Break in builtin JavaScript code is not supported. |
| 597 | if (script.type == Debug.ScriptType.Native) { |
| 598 | throw MakeError(kDebugger, 'Cannot set break point in native code.'); |
| 599 | } |
| 600 | // If the script for the function has a name convert this to a script break |
| 601 | // point. |
| 602 | if (script && script.id) { |
| 603 | // Adjust the source position to be script relative. |
| 604 | source_position += %FunctionGetScriptSourcePosition(func); |
| 605 | // Find line and column for the position in the script and set a script |
| 606 | // break point from that. |
| 607 | var location = script.locationFromPosition(source_position, false); |
| 608 | return this.setScriptBreakPointById(script.id, |
| 609 | location.line, location.column, |
| 610 | opt_condition); |
| 611 | } else { |
| 612 | // Set a break point directly on the function. |
| 613 | var break_point = MakeBreakPoint(source_position); |
| 614 | var actual_position = |
| 615 | %SetFunctionBreakPoint(func, source_position, break_point); |
| 616 | actual_position += this.sourcePosition(func); |
| 617 | var actual_location = script.locationFromPosition(actual_position, true); |
| 618 | break_point.actual_location = { line: actual_location.line, |
| 619 | column: actual_location.column, |
| 620 | script_id: script.id }; |
| 621 | break_point.setCondition(opt_condition); |
| 622 | return break_point.number(); |
| 623 | } |
| 624 | }; |
| 625 | |
| 626 | |
| 627 | Debug.setBreakPointByScriptIdAndPosition = function(script_id, position, |
| 628 | condition, enabled, |
| 629 | opt_position_alignment) |
| 630 | { |
| 631 | var break_point = MakeBreakPoint(position); |
| 632 | break_point.setCondition(condition); |
| 633 | if (!enabled) { |
| 634 | break_point.disable(); |
| 635 | } |
| 636 | var scripts = this.scripts(); |
| 637 | var position_alignment = IS_UNDEFINED(opt_position_alignment) |
| 638 | ? Debug.BreakPositionAlignment.Statement : opt_position_alignment; |
| 639 | for (var i = 0; i < scripts.length; i++) { |
| 640 | if (script_id == scripts[i].id) { |
| 641 | break_point.actual_position = %SetScriptBreakPoint(scripts[i], position, |
| 642 | position_alignment, break_point); |
| 643 | break; |
| 644 | } |
| 645 | } |
| 646 | return break_point; |
| 647 | }; |
| 648 | |
| 649 | |
| 650 | Debug.enableBreakPoint = function(break_point_number) { |
| 651 | var break_point = this.findBreakPoint(break_point_number, false); |
| 652 | // Only enable if the breakpoint hasn't been deleted: |
| 653 | if (break_point) { |
| 654 | break_point.enable(); |
| 655 | } |
| 656 | }; |
| 657 | |
| 658 | |
| 659 | Debug.disableBreakPoint = function(break_point_number) { |
| 660 | var break_point = this.findBreakPoint(break_point_number, false); |
| 661 | // Only enable if the breakpoint hasn't been deleted: |
| 662 | if (break_point) { |
| 663 | break_point.disable(); |
| 664 | } |
| 665 | }; |
| 666 | |
| 667 | |
| 668 | Debug.changeBreakPointCondition = function(break_point_number, condition) { |
| 669 | var break_point = this.findBreakPoint(break_point_number, false); |
| 670 | break_point.setCondition(condition); |
| 671 | }; |
| 672 | |
| 673 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 674 | Debug.clearBreakPoint = function(break_point_number) { |
| 675 | var break_point = this.findBreakPoint(break_point_number, true); |
| 676 | if (break_point) { |
| 677 | return %ClearBreakPoint(break_point); |
| 678 | } else { |
| 679 | break_point = this.findScriptBreakPoint(break_point_number, true); |
| 680 | if (!break_point) throw MakeError(kDebugger, 'Invalid breakpoint'); |
| 681 | } |
| 682 | }; |
| 683 | |
| 684 | |
| 685 | Debug.clearAllBreakPoints = function() { |
| 686 | for (var i = 0; i < break_points.length; i++) { |
| 687 | var break_point = break_points[i]; |
| 688 | %ClearBreakPoint(break_point); |
| 689 | } |
| 690 | break_points = []; |
| 691 | }; |
| 692 | |
| 693 | |
| 694 | Debug.disableAllBreakPoints = function() { |
| 695 | // Disable all user defined breakpoints: |
| 696 | for (var i = 1; i < next_break_point_number; i++) { |
| 697 | Debug.disableBreakPoint(i); |
| 698 | } |
| 699 | // Disable all exception breakpoints: |
| 700 | %ChangeBreakOnException(Debug.ExceptionBreak.Caught, false); |
| 701 | %ChangeBreakOnException(Debug.ExceptionBreak.Uncaught, false); |
| 702 | }; |
| 703 | |
| 704 | |
| 705 | Debug.findScriptBreakPoint = function(break_point_number, remove) { |
| 706 | var script_break_point; |
| 707 | for (var i = 0; i < script_break_points.length; i++) { |
| 708 | if (script_break_points[i].number() == break_point_number) { |
| 709 | script_break_point = script_break_points[i]; |
| 710 | // Remove the break point from the list if requested. |
| 711 | if (remove) { |
| 712 | script_break_point.clear(); |
| 713 | script_break_points.splice(i,1); |
| 714 | } |
| 715 | break; |
| 716 | } |
| 717 | } |
| 718 | return script_break_point; |
| 719 | }; |
| 720 | |
| 721 | |
| 722 | // Sets a breakpoint in a script identified through id or name at the |
| 723 | // specified source line and column within that line. |
| 724 | Debug.setScriptBreakPoint = function(type, script_id_or_name, |
| 725 | opt_line, opt_column, opt_condition, |
| 726 | opt_groupId, opt_position_alignment) { |
| 727 | // Create script break point object. |
| 728 | var script_break_point = |
| 729 | new ScriptBreakPoint(type, script_id_or_name, opt_line, opt_column, |
| 730 | opt_groupId, opt_position_alignment); |
| 731 | |
| 732 | // Assign number to the new script break point and add it. |
| 733 | script_break_point.number_ = next_break_point_number++; |
| 734 | script_break_point.setCondition(opt_condition); |
| 735 | script_break_points.push(script_break_point); |
| 736 | |
| 737 | // Run through all scripts to see if this script break point matches any |
| 738 | // loaded scripts. |
| 739 | var scripts = this.scripts(); |
| 740 | for (var i = 0; i < scripts.length; i++) { |
| 741 | if (script_break_point.matchesScript(scripts[i])) { |
| 742 | script_break_point.set(scripts[i]); |
| 743 | } |
| 744 | } |
| 745 | |
| 746 | return script_break_point.number(); |
| 747 | }; |
| 748 | |
| 749 | |
| 750 | Debug.setScriptBreakPointById = function(script_id, |
| 751 | opt_line, opt_column, |
| 752 | opt_condition, opt_groupId, |
| 753 | opt_position_alignment) { |
| 754 | return this.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptId, |
| 755 | script_id, opt_line, opt_column, |
| 756 | opt_condition, opt_groupId, |
| 757 | opt_position_alignment); |
| 758 | }; |
| 759 | |
| 760 | |
| 761 | Debug.setScriptBreakPointByName = function(script_name, |
| 762 | opt_line, opt_column, |
| 763 | opt_condition, opt_groupId) { |
| 764 | return this.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptName, |
| 765 | script_name, opt_line, opt_column, |
| 766 | opt_condition, opt_groupId); |
| 767 | }; |
| 768 | |
| 769 | |
| 770 | Debug.setScriptBreakPointByRegExp = function(script_regexp, |
| 771 | opt_line, opt_column, |
| 772 | opt_condition, opt_groupId) { |
| 773 | return this.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptRegExp, |
| 774 | script_regexp, opt_line, opt_column, |
| 775 | opt_condition, opt_groupId); |
| 776 | }; |
| 777 | |
| 778 | |
| 779 | Debug.enableScriptBreakPoint = function(break_point_number) { |
| 780 | var script_break_point = this.findScriptBreakPoint(break_point_number, false); |
| 781 | script_break_point.enable(); |
| 782 | }; |
| 783 | |
| 784 | |
| 785 | Debug.disableScriptBreakPoint = function(break_point_number) { |
| 786 | var script_break_point = this.findScriptBreakPoint(break_point_number, false); |
| 787 | script_break_point.disable(); |
| 788 | }; |
| 789 | |
| 790 | |
| 791 | Debug.changeScriptBreakPointCondition = function( |
| 792 | break_point_number, condition) { |
| 793 | var script_break_point = this.findScriptBreakPoint(break_point_number, false); |
| 794 | script_break_point.setCondition(condition); |
| 795 | }; |
| 796 | |
| 797 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 798 | Debug.scriptBreakPoints = function() { |
| 799 | return script_break_points; |
| 800 | }; |
| 801 | |
| 802 | |
| 803 | Debug.clearStepping = function() { |
| 804 | %ClearStepping(); |
| 805 | }; |
| 806 | |
| 807 | Debug.setBreakOnException = function() { |
| 808 | return %ChangeBreakOnException(Debug.ExceptionBreak.Caught, true); |
| 809 | }; |
| 810 | |
| 811 | Debug.clearBreakOnException = function() { |
| 812 | return %ChangeBreakOnException(Debug.ExceptionBreak.Caught, false); |
| 813 | }; |
| 814 | |
| 815 | Debug.isBreakOnException = function() { |
| 816 | return !!%IsBreakOnException(Debug.ExceptionBreak.Caught); |
| 817 | }; |
| 818 | |
| 819 | Debug.setBreakOnUncaughtException = function() { |
| 820 | return %ChangeBreakOnException(Debug.ExceptionBreak.Uncaught, true); |
| 821 | }; |
| 822 | |
| 823 | Debug.clearBreakOnUncaughtException = function() { |
| 824 | return %ChangeBreakOnException(Debug.ExceptionBreak.Uncaught, false); |
| 825 | }; |
| 826 | |
| 827 | Debug.isBreakOnUncaughtException = function() { |
| 828 | return !!%IsBreakOnException(Debug.ExceptionBreak.Uncaught); |
| 829 | }; |
| 830 | |
| 831 | Debug.showBreakPoints = function(f, full, opt_position_alignment) { |
| 832 | if (!IS_FUNCTION(f)) throw MakeError(kDebuggerType); |
| 833 | var source = full ? this.scriptSource(f) : this.source(f); |
| 834 | var offset = full ? this.sourcePosition(f) : 0; |
| 835 | var locations = this.breakLocations(f, opt_position_alignment); |
| 836 | if (!locations) return source; |
| 837 | locations.sort(function(x, y) { return x - y; }); |
| 838 | var result = ""; |
| 839 | var prev_pos = 0; |
| 840 | var pos; |
| 841 | for (var i = 0; i < locations.length; i++) { |
| 842 | pos = locations[i] - offset; |
| 843 | result += source.slice(prev_pos, pos); |
| 844 | result += "[B" + i + "]"; |
| 845 | prev_pos = pos; |
| 846 | } |
| 847 | pos = source.length; |
| 848 | result += source.substring(prev_pos, pos); |
| 849 | return result; |
| 850 | }; |
| 851 | |
| 852 | |
| 853 | // Get all the scripts currently loaded. Locating all the scripts is based on |
| 854 | // scanning the heap. |
| 855 | Debug.scripts = function() { |
| 856 | // Collect all scripts in the heap. |
| 857 | return %DebugGetLoadedScripts(); |
| 858 | }; |
| 859 | |
| 860 | |
| 861 | Debug.debuggerFlags = function() { |
| 862 | return debugger_flags; |
| 863 | }; |
| 864 | |
| 865 | Debug.MakeMirror = MakeMirror; |
| 866 | |
| 867 | function MakeExecutionState(break_id) { |
| 868 | return new ExecutionState(break_id); |
| 869 | } |
| 870 | |
| 871 | function ExecutionState(break_id) { |
| 872 | this.break_id = break_id; |
| 873 | this.selected_frame = 0; |
| 874 | } |
| 875 | |
| 876 | ExecutionState.prototype.prepareStep = function(action) { |
| 877 | if (action === Debug.StepAction.StepIn || |
| 878 | action === Debug.StepAction.StepOut || |
| 879 | action === Debug.StepAction.StepNext || |
| 880 | action === Debug.StepAction.StepFrame) { |
| 881 | return %PrepareStep(this.break_id, action); |
| 882 | } |
| 883 | throw MakeTypeError(kDebuggerType); |
| 884 | }; |
| 885 | |
| 886 | ExecutionState.prototype.evaluateGlobal = function(source, disable_break, |
| 887 | opt_additional_context) { |
| 888 | return MakeMirror(%DebugEvaluateGlobal(this.break_id, source, |
| 889 | TO_BOOLEAN(disable_break), |
| 890 | opt_additional_context)); |
| 891 | }; |
| 892 | |
| 893 | ExecutionState.prototype.frameCount = function() { |
| 894 | return %GetFrameCount(this.break_id); |
| 895 | }; |
| 896 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 897 | ExecutionState.prototype.frame = function(opt_index) { |
| 898 | // If no index supplied return the selected frame. |
| 899 | if (opt_index == null) opt_index = this.selected_frame; |
| 900 | if (opt_index < 0 || opt_index >= this.frameCount()) { |
| 901 | throw MakeTypeError(kDebuggerFrame); |
| 902 | } |
| 903 | return new FrameMirror(this.break_id, opt_index); |
| 904 | }; |
| 905 | |
| 906 | ExecutionState.prototype.setSelectedFrame = function(index) { |
| 907 | var i = TO_NUMBER(index); |
| 908 | if (i < 0 || i >= this.frameCount()) { |
| 909 | throw MakeTypeError(kDebuggerFrame); |
| 910 | } |
| 911 | this.selected_frame = i; |
| 912 | }; |
| 913 | |
| 914 | ExecutionState.prototype.selectedFrame = function() { |
| 915 | return this.selected_frame; |
| 916 | }; |
| 917 | |
| 918 | ExecutionState.prototype.debugCommandProcessor = function(opt_is_running) { |
| 919 | return new DebugCommandProcessor(this, opt_is_running); |
| 920 | }; |
| 921 | |
| 922 | |
| 923 | function MakeBreakEvent(break_id, break_points_hit) { |
| 924 | return new BreakEvent(break_id, break_points_hit); |
| 925 | } |
| 926 | |
| 927 | |
| 928 | function BreakEvent(break_id, break_points_hit) { |
| 929 | this.frame_ = new FrameMirror(break_id, 0); |
| 930 | this.break_points_hit_ = break_points_hit; |
| 931 | } |
| 932 | |
| 933 | |
| 934 | BreakEvent.prototype.eventType = function() { |
| 935 | return Debug.DebugEvent.Break; |
| 936 | }; |
| 937 | |
| 938 | |
| 939 | BreakEvent.prototype.func = function() { |
| 940 | return this.frame_.func(); |
| 941 | }; |
| 942 | |
| 943 | |
| 944 | BreakEvent.prototype.sourceLine = function() { |
| 945 | return this.frame_.sourceLine(); |
| 946 | }; |
| 947 | |
| 948 | |
| 949 | BreakEvent.prototype.sourceColumn = function() { |
| 950 | return this.frame_.sourceColumn(); |
| 951 | }; |
| 952 | |
| 953 | |
| 954 | BreakEvent.prototype.sourceLineText = function() { |
| 955 | return this.frame_.sourceLineText(); |
| 956 | }; |
| 957 | |
| 958 | |
| 959 | BreakEvent.prototype.breakPointsHit = function() { |
| 960 | return this.break_points_hit_; |
| 961 | }; |
| 962 | |
| 963 | |
| 964 | BreakEvent.prototype.toJSONProtocol = function() { |
| 965 | var o = { seq: next_response_seq++, |
| 966 | type: "event", |
| 967 | event: "break", |
| 968 | body: { invocationText: this.frame_.invocationText() } |
| 969 | }; |
| 970 | |
| 971 | // Add script related information to the event if available. |
| 972 | var script = this.func().script(); |
| 973 | if (script) { |
| 974 | o.body.sourceLine = this.sourceLine(), |
| 975 | o.body.sourceColumn = this.sourceColumn(), |
| 976 | o.body.sourceLineText = this.sourceLineText(), |
| 977 | o.body.script = MakeScriptObject_(script, false); |
| 978 | } |
| 979 | |
| 980 | // Add an Array of break points hit if any. |
| 981 | if (this.breakPointsHit()) { |
| 982 | o.body.breakpoints = []; |
| 983 | for (var i = 0; i < this.breakPointsHit().length; i++) { |
| 984 | // Find the break point number. For break points originating from a |
| 985 | // script break point supply the script break point number. |
| 986 | var breakpoint = this.breakPointsHit()[i]; |
| 987 | var script_break_point = breakpoint.script_break_point(); |
| 988 | var number; |
| 989 | if (script_break_point) { |
| 990 | number = script_break_point.number(); |
| 991 | } else { |
| 992 | number = breakpoint.number(); |
| 993 | } |
| 994 | o.body.breakpoints.push(number); |
| 995 | } |
| 996 | } |
| 997 | return JSONStringify(ObjectToProtocolObject_(o)); |
| 998 | }; |
| 999 | |
| 1000 | |
| 1001 | function MakeExceptionEvent(break_id, exception, uncaught, promise) { |
| 1002 | return new ExceptionEvent(break_id, exception, uncaught, promise); |
| 1003 | } |
| 1004 | |
| 1005 | |
| 1006 | function ExceptionEvent(break_id, exception, uncaught, promise) { |
| 1007 | this.exec_state_ = new ExecutionState(break_id); |
| 1008 | this.exception_ = exception; |
| 1009 | this.uncaught_ = uncaught; |
| 1010 | this.promise_ = promise; |
| 1011 | } |
| 1012 | |
| 1013 | |
| 1014 | ExceptionEvent.prototype.eventType = function() { |
| 1015 | return Debug.DebugEvent.Exception; |
| 1016 | }; |
| 1017 | |
| 1018 | |
| 1019 | ExceptionEvent.prototype.exception = function() { |
| 1020 | return this.exception_; |
| 1021 | }; |
| 1022 | |
| 1023 | |
| 1024 | ExceptionEvent.prototype.uncaught = function() { |
| 1025 | return this.uncaught_; |
| 1026 | }; |
| 1027 | |
| 1028 | |
| 1029 | ExceptionEvent.prototype.promise = function() { |
| 1030 | return this.promise_; |
| 1031 | }; |
| 1032 | |
| 1033 | |
| 1034 | ExceptionEvent.prototype.func = function() { |
| 1035 | return this.exec_state_.frame(0).func(); |
| 1036 | }; |
| 1037 | |
| 1038 | |
| 1039 | ExceptionEvent.prototype.sourceLine = function() { |
| 1040 | return this.exec_state_.frame(0).sourceLine(); |
| 1041 | }; |
| 1042 | |
| 1043 | |
| 1044 | ExceptionEvent.prototype.sourceColumn = function() { |
| 1045 | return this.exec_state_.frame(0).sourceColumn(); |
| 1046 | }; |
| 1047 | |
| 1048 | |
| 1049 | ExceptionEvent.prototype.sourceLineText = function() { |
| 1050 | return this.exec_state_.frame(0).sourceLineText(); |
| 1051 | }; |
| 1052 | |
| 1053 | |
| 1054 | ExceptionEvent.prototype.toJSONProtocol = function() { |
| 1055 | var o = new ProtocolMessage(); |
| 1056 | o.event = "exception"; |
| 1057 | o.body = { uncaught: this.uncaught_, |
| 1058 | exception: MakeMirror(this.exception_) |
| 1059 | }; |
| 1060 | |
| 1061 | // Exceptions might happen whithout any JavaScript frames. |
| 1062 | if (this.exec_state_.frameCount() > 0) { |
| 1063 | o.body.sourceLine = this.sourceLine(); |
| 1064 | o.body.sourceColumn = this.sourceColumn(); |
| 1065 | o.body.sourceLineText = this.sourceLineText(); |
| 1066 | |
| 1067 | // Add script information to the event if available. |
| 1068 | var script = this.func().script(); |
| 1069 | if (script) { |
| 1070 | o.body.script = MakeScriptObject_(script, false); |
| 1071 | } |
| 1072 | } else { |
| 1073 | o.body.sourceLine = -1; |
| 1074 | } |
| 1075 | |
| 1076 | return o.toJSONProtocol(); |
| 1077 | }; |
| 1078 | |
| 1079 | |
| 1080 | function MakeCompileEvent(script, type) { |
| 1081 | return new CompileEvent(script, type); |
| 1082 | } |
| 1083 | |
| 1084 | |
| 1085 | function CompileEvent(script, type) { |
| 1086 | this.script_ = MakeMirror(script); |
| 1087 | this.type_ = type; |
| 1088 | } |
| 1089 | |
| 1090 | |
| 1091 | CompileEvent.prototype.eventType = function() { |
| 1092 | return this.type_; |
| 1093 | }; |
| 1094 | |
| 1095 | |
| 1096 | CompileEvent.prototype.script = function() { |
| 1097 | return this.script_; |
| 1098 | }; |
| 1099 | |
| 1100 | |
| 1101 | CompileEvent.prototype.toJSONProtocol = function() { |
| 1102 | var o = new ProtocolMessage(); |
| 1103 | o.running = true; |
| 1104 | switch (this.type_) { |
| 1105 | case Debug.DebugEvent.BeforeCompile: |
| 1106 | o.event = "beforeCompile"; |
| 1107 | break; |
| 1108 | case Debug.DebugEvent.AfterCompile: |
| 1109 | o.event = "afterCompile"; |
| 1110 | break; |
| 1111 | case Debug.DebugEvent.CompileError: |
| 1112 | o.event = "compileError"; |
| 1113 | break; |
| 1114 | } |
| 1115 | o.body = {}; |
| 1116 | o.body.script = this.script_; |
| 1117 | |
| 1118 | return o.toJSONProtocol(); |
| 1119 | }; |
| 1120 | |
| 1121 | |
| 1122 | function MakeScriptObject_(script, include_source) { |
| 1123 | var o = { id: script.id(), |
| 1124 | name: script.name(), |
| 1125 | lineOffset: script.lineOffset(), |
| 1126 | columnOffset: script.columnOffset(), |
| 1127 | lineCount: script.lineCount(), |
| 1128 | }; |
| 1129 | if (!IS_UNDEFINED(script.data())) { |
| 1130 | o.data = script.data(); |
| 1131 | } |
| 1132 | if (include_source) { |
| 1133 | o.source = script.source(); |
| 1134 | } |
| 1135 | return o; |
| 1136 | } |
| 1137 | |
| 1138 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1139 | function MakeAsyncTaskEvent(event_data) { |
| 1140 | return new AsyncTaskEvent(event_data); |
| 1141 | } |
| 1142 | |
| 1143 | |
| 1144 | function AsyncTaskEvent(event_data) { |
| 1145 | this.type_ = event_data.type; |
| 1146 | this.name_ = event_data.name; |
| 1147 | this.id_ = event_data.id; |
| 1148 | } |
| 1149 | |
| 1150 | |
| 1151 | AsyncTaskEvent.prototype.type = function() { |
| 1152 | return this.type_; |
| 1153 | } |
| 1154 | |
| 1155 | |
| 1156 | AsyncTaskEvent.prototype.name = function() { |
| 1157 | return this.name_; |
| 1158 | } |
| 1159 | |
| 1160 | |
| 1161 | AsyncTaskEvent.prototype.id = function() { |
| 1162 | return this.id_; |
| 1163 | } |
| 1164 | |
| 1165 | |
| 1166 | function DebugCommandProcessor(exec_state, opt_is_running) { |
| 1167 | this.exec_state_ = exec_state; |
| 1168 | this.running_ = opt_is_running || false; |
| 1169 | } |
| 1170 | |
| 1171 | |
| 1172 | DebugCommandProcessor.prototype.processDebugRequest = function (request) { |
| 1173 | return this.processDebugJSONRequest(request); |
| 1174 | }; |
| 1175 | |
| 1176 | |
| 1177 | function ProtocolMessage(request) { |
| 1178 | // Update sequence number. |
| 1179 | this.seq = next_response_seq++; |
| 1180 | |
| 1181 | if (request) { |
| 1182 | // If message is based on a request this is a response. Fill the initial |
| 1183 | // response from the request. |
| 1184 | this.type = 'response'; |
| 1185 | this.request_seq = request.seq; |
| 1186 | this.command = request.command; |
| 1187 | } else { |
| 1188 | // If message is not based on a request it is a dabugger generated event. |
| 1189 | this.type = 'event'; |
| 1190 | } |
| 1191 | this.success = true; |
| 1192 | // Handler may set this field to control debugger state. |
| 1193 | this.running = UNDEFINED; |
| 1194 | } |
| 1195 | |
| 1196 | |
| 1197 | ProtocolMessage.prototype.setOption = function(name, value) { |
| 1198 | if (!this.options_) { |
| 1199 | this.options_ = {}; |
| 1200 | } |
| 1201 | this.options_[name] = value; |
| 1202 | }; |
| 1203 | |
| 1204 | |
| 1205 | ProtocolMessage.prototype.failed = function(message, opt_details) { |
| 1206 | this.success = false; |
| 1207 | this.message = message; |
| 1208 | if (IS_OBJECT(opt_details)) { |
| 1209 | this.error_details = opt_details; |
| 1210 | } |
| 1211 | }; |
| 1212 | |
| 1213 | |
| 1214 | ProtocolMessage.prototype.toJSONProtocol = function() { |
| 1215 | // Encode the protocol header. |
| 1216 | var json = {}; |
| 1217 | json.seq= this.seq; |
| 1218 | if (this.request_seq) { |
| 1219 | json.request_seq = this.request_seq; |
| 1220 | } |
| 1221 | json.type = this.type; |
| 1222 | if (this.event) { |
| 1223 | json.event = this.event; |
| 1224 | } |
| 1225 | if (this.command) { |
| 1226 | json.command = this.command; |
| 1227 | } |
| 1228 | if (this.success) { |
| 1229 | json.success = this.success; |
| 1230 | } else { |
| 1231 | json.success = false; |
| 1232 | } |
| 1233 | if (this.body) { |
| 1234 | // Encode the body part. |
| 1235 | var bodyJson; |
| 1236 | var serializer = MakeMirrorSerializer(true, this.options_); |
| 1237 | if (this.body instanceof Mirror) { |
| 1238 | bodyJson = serializer.serializeValue(this.body); |
| 1239 | } else if (this.body instanceof GlobalArray) { |
| 1240 | bodyJson = []; |
| 1241 | for (var i = 0; i < this.body.length; i++) { |
| 1242 | if (this.body[i] instanceof Mirror) { |
| 1243 | bodyJson.push(serializer.serializeValue(this.body[i])); |
| 1244 | } else { |
| 1245 | bodyJson.push(ObjectToProtocolObject_(this.body[i], serializer)); |
| 1246 | } |
| 1247 | } |
| 1248 | } else { |
| 1249 | bodyJson = ObjectToProtocolObject_(this.body, serializer); |
| 1250 | } |
| 1251 | json.body = bodyJson; |
| 1252 | json.refs = serializer.serializeReferencedObjects(); |
| 1253 | } |
| 1254 | if (this.message) { |
| 1255 | json.message = this.message; |
| 1256 | } |
| 1257 | if (this.error_details) { |
| 1258 | json.error_details = this.error_details; |
| 1259 | } |
| 1260 | json.running = this.running; |
| 1261 | return JSONStringify(json); |
| 1262 | }; |
| 1263 | |
| 1264 | |
| 1265 | DebugCommandProcessor.prototype.createResponse = function(request) { |
| 1266 | return new ProtocolMessage(request); |
| 1267 | }; |
| 1268 | |
| 1269 | |
| 1270 | DebugCommandProcessor.prototype.processDebugJSONRequest = function( |
| 1271 | json_request) { |
| 1272 | var request; // Current request. |
| 1273 | var response; // Generated response. |
| 1274 | try { |
| 1275 | try { |
| 1276 | // Convert the JSON string to an object. |
| 1277 | request = JSONParse(json_request); |
| 1278 | |
| 1279 | // Create an initial response. |
| 1280 | response = this.createResponse(request); |
| 1281 | |
| 1282 | if (!request.type) { |
| 1283 | throw MakeError(kDebugger, 'Type not specified'); |
| 1284 | } |
| 1285 | |
| 1286 | if (request.type != 'request') { |
| 1287 | throw MakeError(kDebugger, |
| 1288 | "Illegal type '" + request.type + "' in request"); |
| 1289 | } |
| 1290 | |
| 1291 | if (!request.command) { |
| 1292 | throw MakeError(kDebugger, 'Command not specified'); |
| 1293 | } |
| 1294 | |
| 1295 | if (request.arguments) { |
| 1296 | var args = request.arguments; |
| 1297 | // TODO(yurys): remove request.arguments.compactFormat check once |
| 1298 | // ChromeDevTools are switched to 'inlineRefs' |
| 1299 | if (args.inlineRefs || args.compactFormat) { |
| 1300 | response.setOption('inlineRefs', true); |
| 1301 | } |
| 1302 | if (!IS_UNDEFINED(args.maxStringLength)) { |
| 1303 | response.setOption('maxStringLength', args.maxStringLength); |
| 1304 | } |
| 1305 | } |
| 1306 | |
| 1307 | var key = request.command.toLowerCase(); |
| 1308 | var handler = DebugCommandProcessor.prototype.dispatch_[key]; |
| 1309 | if (IS_FUNCTION(handler)) { |
| 1310 | %_Call(handler, this, request, response); |
| 1311 | } else { |
| 1312 | throw MakeError(kDebugger, |
| 1313 | 'Unknown command "' + request.command + '" in request'); |
| 1314 | } |
| 1315 | } catch (e) { |
| 1316 | // If there is no response object created one (without command). |
| 1317 | if (!response) { |
| 1318 | response = this.createResponse(); |
| 1319 | } |
| 1320 | response.success = false; |
| 1321 | response.message = TO_STRING(e); |
| 1322 | } |
| 1323 | |
| 1324 | // Return the response as a JSON encoded string. |
| 1325 | try { |
| 1326 | if (!IS_UNDEFINED(response.running)) { |
| 1327 | // Response controls running state. |
| 1328 | this.running_ = response.running; |
| 1329 | } |
| 1330 | response.running = this.running_; |
| 1331 | return response.toJSONProtocol(); |
| 1332 | } catch (e) { |
| 1333 | // Failed to generate response - return generic error. |
| 1334 | return '{"seq":' + response.seq + ',' + |
| 1335 | '"request_seq":' + request.seq + ',' + |
| 1336 | '"type":"response",' + |
| 1337 | '"success":false,' + |
| 1338 | '"message":"Internal error: ' + TO_STRING(e) + '"}'; |
| 1339 | } |
| 1340 | } catch (e) { |
| 1341 | // Failed in one of the catch blocks above - most generic error. |
| 1342 | return '{"seq":0,"type":"response","success":false,"message":"Internal error"}'; |
| 1343 | } |
| 1344 | }; |
| 1345 | |
| 1346 | |
| 1347 | DebugCommandProcessor.prototype.continueRequest_ = function(request, response) { |
| 1348 | // Check for arguments for continue. |
| 1349 | if (request.arguments) { |
| 1350 | var action = Debug.StepAction.StepIn; |
| 1351 | |
| 1352 | // Pull out arguments. |
| 1353 | var stepaction = request.arguments.stepaction; |
| 1354 | |
| 1355 | // Get the stepaction argument. |
| 1356 | if (stepaction) { |
| 1357 | if (stepaction == 'in') { |
| 1358 | action = Debug.StepAction.StepIn; |
| 1359 | } else if (stepaction == 'next') { |
| 1360 | action = Debug.StepAction.StepNext; |
| 1361 | } else if (stepaction == 'out') { |
| 1362 | action = Debug.StepAction.StepOut; |
| 1363 | } else { |
| 1364 | throw MakeError(kDebugger, |
| 1365 | 'Invalid stepaction argument "' + stepaction + '".'); |
| 1366 | } |
| 1367 | } |
| 1368 | |
| 1369 | // Set up the VM for stepping. |
| 1370 | this.exec_state_.prepareStep(action); |
| 1371 | } |
| 1372 | |
| 1373 | // VM should be running after executing this request. |
| 1374 | response.running = true; |
| 1375 | }; |
| 1376 | |
| 1377 | |
| 1378 | DebugCommandProcessor.prototype.breakRequest_ = function(request, response) { |
| 1379 | // Ignore as break command does not do anything when broken. |
| 1380 | }; |
| 1381 | |
| 1382 | |
| 1383 | DebugCommandProcessor.prototype.setBreakPointRequest_ = |
| 1384 | function(request, response) { |
| 1385 | // Check for legal request. |
| 1386 | if (!request.arguments) { |
| 1387 | response.failed('Missing arguments'); |
| 1388 | return; |
| 1389 | } |
| 1390 | |
| 1391 | // Pull out arguments. |
| 1392 | var type = request.arguments.type; |
| 1393 | var target = request.arguments.target; |
| 1394 | var line = request.arguments.line; |
| 1395 | var column = request.arguments.column; |
| 1396 | var enabled = IS_UNDEFINED(request.arguments.enabled) ? |
| 1397 | true : request.arguments.enabled; |
| 1398 | var condition = request.arguments.condition; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1399 | var groupId = request.arguments.groupId; |
| 1400 | |
| 1401 | // Check for legal arguments. |
| 1402 | if (!type || IS_UNDEFINED(target)) { |
| 1403 | response.failed('Missing argument "type" or "target"'); |
| 1404 | return; |
| 1405 | } |
| 1406 | |
| 1407 | // Either function or script break point. |
| 1408 | var break_point_number; |
| 1409 | if (type == 'function') { |
| 1410 | // Handle function break point. |
| 1411 | if (!IS_STRING(target)) { |
| 1412 | response.failed('Argument "target" is not a string value'); |
| 1413 | return; |
| 1414 | } |
| 1415 | var f; |
| 1416 | try { |
| 1417 | // Find the function through a global evaluate. |
| 1418 | f = this.exec_state_.evaluateGlobal(target).value(); |
| 1419 | } catch (e) { |
| 1420 | response.failed('Error: "' + TO_STRING(e) + |
| 1421 | '" evaluating "' + target + '"'); |
| 1422 | return; |
| 1423 | } |
| 1424 | if (!IS_FUNCTION(f)) { |
| 1425 | response.failed('"' + target + '" does not evaluate to a function'); |
| 1426 | return; |
| 1427 | } |
| 1428 | |
| 1429 | // Set function break point. |
| 1430 | break_point_number = Debug.setBreakPoint(f, line, column, condition); |
| 1431 | } else if (type == 'handle') { |
| 1432 | // Find the object pointed by the specified handle. |
| 1433 | var handle = ParseInt(target, 10); |
| 1434 | var mirror = LookupMirror(handle); |
| 1435 | if (!mirror) { |
| 1436 | return response.failed('Object #' + handle + '# not found'); |
| 1437 | } |
| 1438 | if (!mirror.isFunction()) { |
| 1439 | return response.failed('Object #' + handle + '# is not a function'); |
| 1440 | } |
| 1441 | |
| 1442 | // Set function break point. |
| 1443 | break_point_number = Debug.setBreakPoint(mirror.value(), |
| 1444 | line, column, condition); |
| 1445 | } else if (type == 'script') { |
| 1446 | // set script break point. |
| 1447 | break_point_number = |
| 1448 | Debug.setScriptBreakPointByName(target, line, column, condition, |
| 1449 | groupId); |
| 1450 | } else if (type == 'scriptId') { |
| 1451 | break_point_number = |
| 1452 | Debug.setScriptBreakPointById(target, line, column, condition, groupId); |
| 1453 | } else if (type == 'scriptRegExp') { |
| 1454 | break_point_number = |
| 1455 | Debug.setScriptBreakPointByRegExp(target, line, column, condition, |
| 1456 | groupId); |
| 1457 | } else { |
| 1458 | response.failed('Illegal type "' + type + '"'); |
| 1459 | return; |
| 1460 | } |
| 1461 | |
| 1462 | // Set additional break point properties. |
| 1463 | var break_point = Debug.findBreakPoint(break_point_number); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1464 | if (!enabled) { |
| 1465 | Debug.disableBreakPoint(break_point_number); |
| 1466 | } |
| 1467 | |
| 1468 | // Add the break point number to the response. |
| 1469 | response.body = { type: type, |
| 1470 | breakpoint: break_point_number }; |
| 1471 | |
| 1472 | // Add break point information to the response. |
| 1473 | if (break_point instanceof ScriptBreakPoint) { |
| 1474 | if (break_point.type() == Debug.ScriptBreakPointType.ScriptId) { |
| 1475 | response.body.type = 'scriptId'; |
| 1476 | response.body.script_id = break_point.script_id(); |
| 1477 | } else if (break_point.type() == Debug.ScriptBreakPointType.ScriptName) { |
| 1478 | response.body.type = 'scriptName'; |
| 1479 | response.body.script_name = break_point.script_name(); |
| 1480 | } else if (break_point.type() == Debug.ScriptBreakPointType.ScriptRegExp) { |
| 1481 | response.body.type = 'scriptRegExp'; |
| 1482 | response.body.script_regexp = break_point.script_regexp_object().source; |
| 1483 | } else { |
| 1484 | throw MakeError(kDebugger, |
| 1485 | "Unexpected breakpoint type: " + break_point.type()); |
| 1486 | } |
| 1487 | response.body.line = break_point.line(); |
| 1488 | response.body.column = break_point.column(); |
| 1489 | response.body.actual_locations = break_point.actual_locations(); |
| 1490 | } else { |
| 1491 | response.body.type = 'function'; |
| 1492 | response.body.actual_locations = [break_point.actual_location]; |
| 1493 | } |
| 1494 | }; |
| 1495 | |
| 1496 | |
| 1497 | DebugCommandProcessor.prototype.changeBreakPointRequest_ = function( |
| 1498 | request, response) { |
| 1499 | // Check for legal request. |
| 1500 | if (!request.arguments) { |
| 1501 | response.failed('Missing arguments'); |
| 1502 | return; |
| 1503 | } |
| 1504 | |
| 1505 | // Pull out arguments. |
| 1506 | var break_point = TO_NUMBER(request.arguments.breakpoint); |
| 1507 | var enabled = request.arguments.enabled; |
| 1508 | var condition = request.arguments.condition; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1509 | |
| 1510 | // Check for legal arguments. |
| 1511 | if (!break_point) { |
| 1512 | response.failed('Missing argument "breakpoint"'); |
| 1513 | return; |
| 1514 | } |
| 1515 | |
| 1516 | // Change enabled state if supplied. |
| 1517 | if (!IS_UNDEFINED(enabled)) { |
| 1518 | if (enabled) { |
| 1519 | Debug.enableBreakPoint(break_point); |
| 1520 | } else { |
| 1521 | Debug.disableBreakPoint(break_point); |
| 1522 | } |
| 1523 | } |
| 1524 | |
| 1525 | // Change condition if supplied |
| 1526 | if (!IS_UNDEFINED(condition)) { |
| 1527 | Debug.changeBreakPointCondition(break_point, condition); |
| 1528 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1529 | }; |
| 1530 | |
| 1531 | |
| 1532 | DebugCommandProcessor.prototype.clearBreakPointGroupRequest_ = function( |
| 1533 | request, response) { |
| 1534 | // Check for legal request. |
| 1535 | if (!request.arguments) { |
| 1536 | response.failed('Missing arguments'); |
| 1537 | return; |
| 1538 | } |
| 1539 | |
| 1540 | // Pull out arguments. |
| 1541 | var group_id = request.arguments.groupId; |
| 1542 | |
| 1543 | // Check for legal arguments. |
| 1544 | if (!group_id) { |
| 1545 | response.failed('Missing argument "groupId"'); |
| 1546 | return; |
| 1547 | } |
| 1548 | |
| 1549 | var cleared_break_points = []; |
| 1550 | var new_script_break_points = []; |
| 1551 | for (var i = 0; i < script_break_points.length; i++) { |
| 1552 | var next_break_point = script_break_points[i]; |
| 1553 | if (next_break_point.groupId() == group_id) { |
| 1554 | cleared_break_points.push(next_break_point.number()); |
| 1555 | next_break_point.clear(); |
| 1556 | } else { |
| 1557 | new_script_break_points.push(next_break_point); |
| 1558 | } |
| 1559 | } |
| 1560 | script_break_points = new_script_break_points; |
| 1561 | |
| 1562 | // Add the cleared break point numbers to the response. |
| 1563 | response.body = { breakpoints: cleared_break_points }; |
| 1564 | }; |
| 1565 | |
| 1566 | |
| 1567 | DebugCommandProcessor.prototype.clearBreakPointRequest_ = function( |
| 1568 | request, response) { |
| 1569 | // Check for legal request. |
| 1570 | if (!request.arguments) { |
| 1571 | response.failed('Missing arguments'); |
| 1572 | return; |
| 1573 | } |
| 1574 | |
| 1575 | // Pull out arguments. |
| 1576 | var break_point = TO_NUMBER(request.arguments.breakpoint); |
| 1577 | |
| 1578 | // Check for legal arguments. |
| 1579 | if (!break_point) { |
| 1580 | response.failed('Missing argument "breakpoint"'); |
| 1581 | return; |
| 1582 | } |
| 1583 | |
| 1584 | // Clear break point. |
| 1585 | Debug.clearBreakPoint(break_point); |
| 1586 | |
| 1587 | // Add the cleared break point number to the response. |
| 1588 | response.body = { breakpoint: break_point }; |
| 1589 | }; |
| 1590 | |
| 1591 | |
| 1592 | DebugCommandProcessor.prototype.listBreakpointsRequest_ = function( |
| 1593 | request, response) { |
| 1594 | var array = []; |
| 1595 | for (var i = 0; i < script_break_points.length; i++) { |
| 1596 | var break_point = script_break_points[i]; |
| 1597 | |
| 1598 | var description = { |
| 1599 | number: break_point.number(), |
| 1600 | line: break_point.line(), |
| 1601 | column: break_point.column(), |
| 1602 | groupId: break_point.groupId(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1603 | active: break_point.active(), |
| 1604 | condition: break_point.condition(), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1605 | actual_locations: break_point.actual_locations() |
| 1606 | }; |
| 1607 | |
| 1608 | if (break_point.type() == Debug.ScriptBreakPointType.ScriptId) { |
| 1609 | description.type = 'scriptId'; |
| 1610 | description.script_id = break_point.script_id(); |
| 1611 | } else if (break_point.type() == Debug.ScriptBreakPointType.ScriptName) { |
| 1612 | description.type = 'scriptName'; |
| 1613 | description.script_name = break_point.script_name(); |
| 1614 | } else if (break_point.type() == Debug.ScriptBreakPointType.ScriptRegExp) { |
| 1615 | description.type = 'scriptRegExp'; |
| 1616 | description.script_regexp = break_point.script_regexp_object().source; |
| 1617 | } else { |
| 1618 | throw MakeError(kDebugger, |
| 1619 | "Unexpected breakpoint type: " + break_point.type()); |
| 1620 | } |
| 1621 | array.push(description); |
| 1622 | } |
| 1623 | |
| 1624 | response.body = { |
| 1625 | breakpoints: array, |
| 1626 | breakOnExceptions: Debug.isBreakOnException(), |
| 1627 | breakOnUncaughtExceptions: Debug.isBreakOnUncaughtException() |
| 1628 | }; |
| 1629 | }; |
| 1630 | |
| 1631 | |
| 1632 | DebugCommandProcessor.prototype.disconnectRequest_ = |
| 1633 | function(request, response) { |
| 1634 | Debug.disableAllBreakPoints(); |
| 1635 | this.continueRequest_(request, response); |
| 1636 | }; |
| 1637 | |
| 1638 | |
| 1639 | DebugCommandProcessor.prototype.setExceptionBreakRequest_ = |
| 1640 | function(request, response) { |
| 1641 | // Check for legal request. |
| 1642 | if (!request.arguments) { |
| 1643 | response.failed('Missing arguments'); |
| 1644 | return; |
| 1645 | } |
| 1646 | |
| 1647 | // Pull out and check the 'type' argument: |
| 1648 | var type = request.arguments.type; |
| 1649 | if (!type) { |
| 1650 | response.failed('Missing argument "type"'); |
| 1651 | return; |
| 1652 | } |
| 1653 | |
| 1654 | // Initialize the default value of enable: |
| 1655 | var enabled; |
| 1656 | if (type == 'all') { |
| 1657 | enabled = !Debug.isBreakOnException(); |
| 1658 | } else if (type == 'uncaught') { |
| 1659 | enabled = !Debug.isBreakOnUncaughtException(); |
| 1660 | } |
| 1661 | |
| 1662 | // Pull out and check the 'enabled' argument if present: |
| 1663 | if (!IS_UNDEFINED(request.arguments.enabled)) { |
| 1664 | enabled = request.arguments.enabled; |
| 1665 | if ((enabled != true) && (enabled != false)) { |
| 1666 | response.failed('Illegal value for "enabled":"' + enabled + '"'); |
| 1667 | } |
| 1668 | } |
| 1669 | |
| 1670 | // Now set the exception break state: |
| 1671 | if (type == 'all') { |
| 1672 | %ChangeBreakOnException(Debug.ExceptionBreak.Caught, enabled); |
| 1673 | } else if (type == 'uncaught') { |
| 1674 | %ChangeBreakOnException(Debug.ExceptionBreak.Uncaught, enabled); |
| 1675 | } else { |
| 1676 | response.failed('Unknown "type":"' + type + '"'); |
| 1677 | } |
| 1678 | |
| 1679 | // Add the cleared break point number to the response. |
| 1680 | response.body = { 'type': type, 'enabled': enabled }; |
| 1681 | }; |
| 1682 | |
| 1683 | |
| 1684 | DebugCommandProcessor.prototype.backtraceRequest_ = function( |
| 1685 | request, response) { |
| 1686 | // Get the number of frames. |
| 1687 | var total_frames = this.exec_state_.frameCount(); |
| 1688 | |
| 1689 | // Create simple response if there are no frames. |
| 1690 | if (total_frames == 0) { |
| 1691 | response.body = { |
| 1692 | totalFrames: total_frames |
| 1693 | }; |
| 1694 | return; |
| 1695 | } |
| 1696 | |
| 1697 | // Default frame range to include in backtrace. |
| 1698 | var from_index = 0; |
| 1699 | var to_index = kDefaultBacktraceLength; |
| 1700 | |
| 1701 | // Get the range from the arguments. |
| 1702 | if (request.arguments) { |
| 1703 | if (request.arguments.fromFrame) { |
| 1704 | from_index = request.arguments.fromFrame; |
| 1705 | } |
| 1706 | if (request.arguments.toFrame) { |
| 1707 | to_index = request.arguments.toFrame; |
| 1708 | } |
| 1709 | if (request.arguments.bottom) { |
| 1710 | var tmp_index = total_frames - from_index; |
| 1711 | from_index = total_frames - to_index; |
| 1712 | to_index = tmp_index; |
| 1713 | } |
| 1714 | if (from_index < 0 || to_index < 0) { |
| 1715 | return response.failed('Invalid frame number'); |
| 1716 | } |
| 1717 | } |
| 1718 | |
| 1719 | // Adjust the index. |
| 1720 | to_index = MathMin(total_frames, to_index); |
| 1721 | |
| 1722 | if (to_index <= from_index) { |
| 1723 | var error = 'Invalid frame range'; |
| 1724 | return response.failed(error); |
| 1725 | } |
| 1726 | |
| 1727 | // Create the response body. |
| 1728 | var frames = []; |
| 1729 | for (var i = from_index; i < to_index; i++) { |
| 1730 | frames.push(this.exec_state_.frame(i)); |
| 1731 | } |
| 1732 | response.body = { |
| 1733 | fromFrame: from_index, |
| 1734 | toFrame: to_index, |
| 1735 | totalFrames: total_frames, |
| 1736 | frames: frames |
| 1737 | }; |
| 1738 | }; |
| 1739 | |
| 1740 | |
| 1741 | DebugCommandProcessor.prototype.frameRequest_ = function(request, response) { |
| 1742 | // No frames no source. |
| 1743 | if (this.exec_state_.frameCount() == 0) { |
| 1744 | return response.failed('No frames'); |
| 1745 | } |
| 1746 | |
| 1747 | // With no arguments just keep the selected frame. |
| 1748 | if (request.arguments) { |
| 1749 | var index = request.arguments.number; |
| 1750 | if (index < 0 || this.exec_state_.frameCount() <= index) { |
| 1751 | return response.failed('Invalid frame number'); |
| 1752 | } |
| 1753 | |
| 1754 | this.exec_state_.setSelectedFrame(request.arguments.number); |
| 1755 | } |
| 1756 | response.body = this.exec_state_.frame(); |
| 1757 | }; |
| 1758 | |
| 1759 | |
| 1760 | DebugCommandProcessor.prototype.resolveFrameFromScopeDescription_ = |
| 1761 | function(scope_description) { |
| 1762 | // Get the frame for which the scope or scopes are requested. |
| 1763 | // With no frameNumber argument use the currently selected frame. |
| 1764 | if (scope_description && !IS_UNDEFINED(scope_description.frameNumber)) { |
| 1765 | var frame_index = scope_description.frameNumber; |
| 1766 | if (frame_index < 0 || this.exec_state_.frameCount() <= frame_index) { |
| 1767 | throw MakeTypeError(kDebuggerFrame); |
| 1768 | } |
| 1769 | return this.exec_state_.frame(frame_index); |
| 1770 | } else { |
| 1771 | return this.exec_state_.frame(); |
| 1772 | } |
| 1773 | }; |
| 1774 | |
| 1775 | |
| 1776 | // Gets scope host object from request. It is either a function |
| 1777 | // ('functionHandle' argument must be specified) or a stack frame |
| 1778 | // ('frameNumber' may be specified and the current frame is taken by default). |
| 1779 | DebugCommandProcessor.prototype.resolveScopeHolder_ = |
| 1780 | function(scope_description) { |
| 1781 | if (scope_description && "functionHandle" in scope_description) { |
| 1782 | if (!IS_NUMBER(scope_description.functionHandle)) { |
| 1783 | throw MakeError(kDebugger, 'Function handle must be a number'); |
| 1784 | } |
| 1785 | var function_mirror = LookupMirror(scope_description.functionHandle); |
| 1786 | if (!function_mirror) { |
| 1787 | throw MakeError(kDebugger, 'Failed to find function object by handle'); |
| 1788 | } |
| 1789 | if (!function_mirror.isFunction()) { |
| 1790 | throw MakeError(kDebugger, |
| 1791 | 'Value of non-function type is found by handle'); |
| 1792 | } |
| 1793 | return function_mirror; |
| 1794 | } else { |
| 1795 | // No frames no scopes. |
| 1796 | if (this.exec_state_.frameCount() == 0) { |
| 1797 | throw MakeError(kDebugger, 'No scopes'); |
| 1798 | } |
| 1799 | |
| 1800 | // Get the frame for which the scopes are requested. |
| 1801 | var frame = this.resolveFrameFromScopeDescription_(scope_description); |
| 1802 | return frame; |
| 1803 | } |
| 1804 | } |
| 1805 | |
| 1806 | |
| 1807 | DebugCommandProcessor.prototype.scopesRequest_ = function(request, response) { |
| 1808 | var scope_holder = this.resolveScopeHolder_(request.arguments); |
| 1809 | |
| 1810 | // Fill all scopes for this frame or function. |
| 1811 | var total_scopes = scope_holder.scopeCount(); |
| 1812 | var scopes = []; |
| 1813 | for (var i = 0; i < total_scopes; i++) { |
| 1814 | scopes.push(scope_holder.scope(i)); |
| 1815 | } |
| 1816 | response.body = { |
| 1817 | fromScope: 0, |
| 1818 | toScope: total_scopes, |
| 1819 | totalScopes: total_scopes, |
| 1820 | scopes: scopes |
| 1821 | }; |
| 1822 | }; |
| 1823 | |
| 1824 | |
| 1825 | DebugCommandProcessor.prototype.scopeRequest_ = function(request, response) { |
| 1826 | // Get the frame or function for which the scope is requested. |
| 1827 | var scope_holder = this.resolveScopeHolder_(request.arguments); |
| 1828 | |
| 1829 | // With no scope argument just return top scope. |
| 1830 | var scope_index = 0; |
| 1831 | if (request.arguments && !IS_UNDEFINED(request.arguments.number)) { |
| 1832 | scope_index = TO_NUMBER(request.arguments.number); |
| 1833 | if (scope_index < 0 || scope_holder.scopeCount() <= scope_index) { |
| 1834 | return response.failed('Invalid scope number'); |
| 1835 | } |
| 1836 | } |
| 1837 | |
| 1838 | response.body = scope_holder.scope(scope_index); |
| 1839 | }; |
| 1840 | |
| 1841 | |
| 1842 | // Reads value from protocol description. Description may be in form of type |
| 1843 | // (for singletons), raw value (primitive types supported in JSON), |
| 1844 | // string value description plus type (for primitive values) or handle id. |
| 1845 | // Returns raw value or throws exception. |
| 1846 | DebugCommandProcessor.resolveValue_ = function(value_description) { |
| 1847 | if ("handle" in value_description) { |
| 1848 | var value_mirror = LookupMirror(value_description.handle); |
| 1849 | if (!value_mirror) { |
| 1850 | throw MakeError(kDebugger, "Failed to resolve value by handle, ' #" + |
| 1851 | value_description.handle + "# not found"); |
| 1852 | } |
| 1853 | return value_mirror.value(); |
| 1854 | } else if ("stringDescription" in value_description) { |
| 1855 | if (value_description.type == MirrorType.BOOLEAN_TYPE) { |
| 1856 | return TO_BOOLEAN(value_description.stringDescription); |
| 1857 | } else if (value_description.type == MirrorType.NUMBER_TYPE) { |
| 1858 | return TO_NUMBER(value_description.stringDescription); |
| 1859 | } if (value_description.type == MirrorType.STRING_TYPE) { |
| 1860 | return TO_STRING(value_description.stringDescription); |
| 1861 | } else { |
| 1862 | throw MakeError(kDebugger, "Unknown type"); |
| 1863 | } |
| 1864 | } else if ("value" in value_description) { |
| 1865 | return value_description.value; |
| 1866 | } else if (value_description.type == MirrorType.UNDEFINED_TYPE) { |
| 1867 | return UNDEFINED; |
| 1868 | } else if (value_description.type == MirrorType.NULL_TYPE) { |
| 1869 | return null; |
| 1870 | } else { |
| 1871 | throw MakeError(kDebugger, "Failed to parse value description"); |
| 1872 | } |
| 1873 | }; |
| 1874 | |
| 1875 | |
| 1876 | DebugCommandProcessor.prototype.setVariableValueRequest_ = |
| 1877 | function(request, response) { |
| 1878 | if (!request.arguments) { |
| 1879 | response.failed('Missing arguments'); |
| 1880 | return; |
| 1881 | } |
| 1882 | |
| 1883 | if (IS_UNDEFINED(request.arguments.name)) { |
| 1884 | response.failed('Missing variable name'); |
| 1885 | } |
| 1886 | var variable_name = request.arguments.name; |
| 1887 | |
| 1888 | var scope_description = request.arguments.scope; |
| 1889 | |
| 1890 | // Get the frame or function for which the scope is requested. |
| 1891 | var scope_holder = this.resolveScopeHolder_(scope_description); |
| 1892 | |
| 1893 | if (IS_UNDEFINED(scope_description.number)) { |
| 1894 | response.failed('Missing scope number'); |
| 1895 | } |
| 1896 | var scope_index = TO_NUMBER(scope_description.number); |
| 1897 | |
| 1898 | var scope = scope_holder.scope(scope_index); |
| 1899 | |
| 1900 | var new_value = |
| 1901 | DebugCommandProcessor.resolveValue_(request.arguments.newValue); |
| 1902 | |
| 1903 | scope.setVariableValue(variable_name, new_value); |
| 1904 | |
| 1905 | var new_value_mirror = MakeMirror(new_value); |
| 1906 | |
| 1907 | response.body = { |
| 1908 | newValue: new_value_mirror |
| 1909 | }; |
| 1910 | }; |
| 1911 | |
| 1912 | |
| 1913 | DebugCommandProcessor.prototype.evaluateRequest_ = function(request, response) { |
| 1914 | if (!request.arguments) { |
| 1915 | return response.failed('Missing arguments'); |
| 1916 | } |
| 1917 | |
| 1918 | // Pull out arguments. |
| 1919 | var expression = request.arguments.expression; |
| 1920 | var frame = request.arguments.frame; |
| 1921 | var global = request.arguments.global; |
| 1922 | var disable_break = request.arguments.disable_break; |
| 1923 | var additional_context = request.arguments.additional_context; |
| 1924 | |
| 1925 | // The expression argument could be an integer so we convert it to a |
| 1926 | // string. |
| 1927 | try { |
| 1928 | expression = TO_STRING(expression); |
| 1929 | } catch(e) { |
| 1930 | return response.failed('Failed to convert expression argument to string'); |
| 1931 | } |
| 1932 | |
| 1933 | // Check for legal arguments. |
| 1934 | if (!IS_UNDEFINED(frame) && global) { |
| 1935 | return response.failed('Arguments "frame" and "global" are exclusive'); |
| 1936 | } |
| 1937 | |
| 1938 | var additional_context_object; |
| 1939 | if (additional_context) { |
| 1940 | additional_context_object = {}; |
| 1941 | for (var i = 0; i < additional_context.length; i++) { |
| 1942 | var mapping = additional_context[i]; |
| 1943 | |
| 1944 | if (!IS_STRING(mapping.name)) { |
| 1945 | return response.failed("Context element #" + i + |
| 1946 | " doesn't contain name:string property"); |
| 1947 | } |
| 1948 | |
| 1949 | var raw_value = DebugCommandProcessor.resolveValue_(mapping); |
| 1950 | additional_context_object[mapping.name] = raw_value; |
| 1951 | } |
| 1952 | } |
| 1953 | |
| 1954 | // Global evaluate. |
| 1955 | if (global) { |
| 1956 | // Evaluate in the native context. |
| 1957 | response.body = this.exec_state_.evaluateGlobal( |
| 1958 | expression, TO_BOOLEAN(disable_break), additional_context_object); |
| 1959 | return; |
| 1960 | } |
| 1961 | |
| 1962 | // Default value for disable_break is true. |
| 1963 | if (IS_UNDEFINED(disable_break)) { |
| 1964 | disable_break = true; |
| 1965 | } |
| 1966 | |
| 1967 | // No frames no evaluate in frame. |
| 1968 | if (this.exec_state_.frameCount() == 0) { |
| 1969 | return response.failed('No frames'); |
| 1970 | } |
| 1971 | |
| 1972 | // Check whether a frame was specified. |
| 1973 | if (!IS_UNDEFINED(frame)) { |
| 1974 | var frame_number = TO_NUMBER(frame); |
| 1975 | if (frame_number < 0 || frame_number >= this.exec_state_.frameCount()) { |
| 1976 | return response.failed('Invalid frame "' + frame + '"'); |
| 1977 | } |
| 1978 | // Evaluate in the specified frame. |
| 1979 | response.body = this.exec_state_.frame(frame_number).evaluate( |
| 1980 | expression, TO_BOOLEAN(disable_break), additional_context_object); |
| 1981 | return; |
| 1982 | } else { |
| 1983 | // Evaluate in the selected frame. |
| 1984 | response.body = this.exec_state_.frame().evaluate( |
| 1985 | expression, TO_BOOLEAN(disable_break), additional_context_object); |
| 1986 | return; |
| 1987 | } |
| 1988 | }; |
| 1989 | |
| 1990 | |
| 1991 | DebugCommandProcessor.prototype.lookupRequest_ = function(request, response) { |
| 1992 | if (!request.arguments) { |
| 1993 | return response.failed('Missing arguments'); |
| 1994 | } |
| 1995 | |
| 1996 | // Pull out arguments. |
| 1997 | var handles = request.arguments.handles; |
| 1998 | |
| 1999 | // Check for legal arguments. |
| 2000 | if (IS_UNDEFINED(handles)) { |
| 2001 | return response.failed('Argument "handles" missing'); |
| 2002 | } |
| 2003 | |
| 2004 | // Set 'includeSource' option for script lookup. |
| 2005 | if (!IS_UNDEFINED(request.arguments.includeSource)) { |
| 2006 | var includeSource = TO_BOOLEAN(request.arguments.includeSource); |
| 2007 | response.setOption('includeSource', includeSource); |
| 2008 | } |
| 2009 | |
| 2010 | // Lookup handles. |
| 2011 | var mirrors = {}; |
| 2012 | for (var i = 0; i < handles.length; i++) { |
| 2013 | var handle = handles[i]; |
| 2014 | var mirror = LookupMirror(handle); |
| 2015 | if (!mirror) { |
| 2016 | return response.failed('Object #' + handle + '# not found'); |
| 2017 | } |
| 2018 | mirrors[handle] = mirror; |
| 2019 | } |
| 2020 | response.body = mirrors; |
| 2021 | }; |
| 2022 | |
| 2023 | |
| 2024 | DebugCommandProcessor.prototype.referencesRequest_ = |
| 2025 | function(request, response) { |
| 2026 | if (!request.arguments) { |
| 2027 | return response.failed('Missing arguments'); |
| 2028 | } |
| 2029 | |
| 2030 | // Pull out arguments. |
| 2031 | var type = request.arguments.type; |
| 2032 | var handle = request.arguments.handle; |
| 2033 | |
| 2034 | // Check for legal arguments. |
| 2035 | if (IS_UNDEFINED(type)) { |
| 2036 | return response.failed('Argument "type" missing'); |
| 2037 | } |
| 2038 | if (IS_UNDEFINED(handle)) { |
| 2039 | return response.failed('Argument "handle" missing'); |
| 2040 | } |
| 2041 | if (type != 'referencedBy' && type != 'constructedBy') { |
| 2042 | return response.failed('Invalid type "' + type + '"'); |
| 2043 | } |
| 2044 | |
| 2045 | // Lookup handle and return objects with references the object. |
| 2046 | var mirror = LookupMirror(handle); |
| 2047 | if (mirror) { |
| 2048 | if (type == 'referencedBy') { |
| 2049 | response.body = mirror.referencedBy(); |
| 2050 | } else { |
| 2051 | response.body = mirror.constructedBy(); |
| 2052 | } |
| 2053 | } else { |
| 2054 | return response.failed('Object #' + handle + '# not found'); |
| 2055 | } |
| 2056 | }; |
| 2057 | |
| 2058 | |
| 2059 | DebugCommandProcessor.prototype.sourceRequest_ = function(request, response) { |
| 2060 | // No frames no source. |
| 2061 | if (this.exec_state_.frameCount() == 0) { |
| 2062 | return response.failed('No source'); |
| 2063 | } |
| 2064 | |
| 2065 | var from_line; |
| 2066 | var to_line; |
| 2067 | var frame = this.exec_state_.frame(); |
| 2068 | if (request.arguments) { |
| 2069 | // Pull out arguments. |
| 2070 | from_line = request.arguments.fromLine; |
| 2071 | to_line = request.arguments.toLine; |
| 2072 | |
| 2073 | if (!IS_UNDEFINED(request.arguments.frame)) { |
| 2074 | var frame_number = TO_NUMBER(request.arguments.frame); |
| 2075 | if (frame_number < 0 || frame_number >= this.exec_state_.frameCount()) { |
| 2076 | return response.failed('Invalid frame "' + frame + '"'); |
| 2077 | } |
| 2078 | frame = this.exec_state_.frame(frame_number); |
| 2079 | } |
| 2080 | } |
| 2081 | |
| 2082 | // Get the script selected. |
| 2083 | var script = frame.func().script(); |
| 2084 | if (!script) { |
| 2085 | return response.failed('No source'); |
| 2086 | } |
| 2087 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2088 | var raw_script = script.value(); |
| 2089 | |
| 2090 | // Sanitize arguments and remove line offset. |
| 2091 | var line_offset = raw_script.line_offset; |
| 2092 | var line_count = %ScriptLineCount(raw_script); |
| 2093 | from_line = IS_UNDEFINED(from_line) ? 0 : from_line - line_offset; |
| 2094 | to_line = IS_UNDEFINED(to_line) ? line_count : to_line - line_offset; |
| 2095 | |
| 2096 | if (from_line < 0) from_line = 0; |
| 2097 | if (to_line > line_count) to_line = line_count; |
| 2098 | |
| 2099 | if (from_line >= line_count || to_line < 0 || from_line > to_line) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2100 | return response.failed('Invalid line interval'); |
| 2101 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2102 | |
| 2103 | // Fill in the response. |
| 2104 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2105 | response.body = {}; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2106 | response.body.fromLine = from_line + line_offset; |
| 2107 | response.body.toLine = to_line + line_offset; |
| 2108 | response.body.fromPosition = %ScriptLineStartPosition(raw_script, from_line); |
| 2109 | response.body.toPosition = |
| 2110 | (to_line == 0) ? 0 : %ScriptLineEndPosition(raw_script, to_line - 1); |
| 2111 | response.body.totalLines = %ScriptLineCount(raw_script); |
| 2112 | |
| 2113 | response.body.source = %_SubString(raw_script.source, |
| 2114 | response.body.fromPosition, |
| 2115 | response.body.toPosition); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2116 | }; |
| 2117 | |
| 2118 | |
| 2119 | DebugCommandProcessor.prototype.scriptsRequest_ = function(request, response) { |
| 2120 | var types = ScriptTypeFlag(Debug.ScriptType.Normal); |
| 2121 | var includeSource = false; |
| 2122 | var idsToInclude = null; |
| 2123 | if (request.arguments) { |
| 2124 | // Pull out arguments. |
| 2125 | if (!IS_UNDEFINED(request.arguments.types)) { |
| 2126 | types = TO_NUMBER(request.arguments.types); |
| 2127 | if (IsNaN(types) || types < 0) { |
| 2128 | return response.failed('Invalid types "' + |
| 2129 | request.arguments.types + '"'); |
| 2130 | } |
| 2131 | } |
| 2132 | |
| 2133 | if (!IS_UNDEFINED(request.arguments.includeSource)) { |
| 2134 | includeSource = TO_BOOLEAN(request.arguments.includeSource); |
| 2135 | response.setOption('includeSource', includeSource); |
| 2136 | } |
| 2137 | |
| 2138 | if (IS_ARRAY(request.arguments.ids)) { |
| 2139 | idsToInclude = {}; |
| 2140 | var ids = request.arguments.ids; |
| 2141 | for (var i = 0; i < ids.length; i++) { |
| 2142 | idsToInclude[ids[i]] = true; |
| 2143 | } |
| 2144 | } |
| 2145 | |
| 2146 | var filterStr = null; |
| 2147 | var filterNum = null; |
| 2148 | if (!IS_UNDEFINED(request.arguments.filter)) { |
| 2149 | var num = TO_NUMBER(request.arguments.filter); |
| 2150 | if (!IsNaN(num)) { |
| 2151 | filterNum = num; |
| 2152 | } |
| 2153 | filterStr = request.arguments.filter; |
| 2154 | } |
| 2155 | } |
| 2156 | |
| 2157 | // Collect all scripts in the heap. |
| 2158 | var scripts = %DebugGetLoadedScripts(); |
| 2159 | |
| 2160 | response.body = []; |
| 2161 | |
| 2162 | for (var i = 0; i < scripts.length; i++) { |
| 2163 | if (idsToInclude && !idsToInclude[scripts[i].id]) { |
| 2164 | continue; |
| 2165 | } |
| 2166 | if (filterStr || filterNum) { |
| 2167 | var script = scripts[i]; |
| 2168 | var found = false; |
| 2169 | if (filterNum && !found) { |
| 2170 | if (script.id && script.id === filterNum) { |
| 2171 | found = true; |
| 2172 | } |
| 2173 | } |
| 2174 | if (filterStr && !found) { |
| 2175 | if (script.name && script.name.indexOf(filterStr) >= 0) { |
| 2176 | found = true; |
| 2177 | } |
| 2178 | } |
| 2179 | if (!found) continue; |
| 2180 | } |
| 2181 | if (types & ScriptTypeFlag(scripts[i].type)) { |
| 2182 | response.body.push(MakeMirror(scripts[i])); |
| 2183 | } |
| 2184 | } |
| 2185 | }; |
| 2186 | |
| 2187 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2188 | DebugCommandProcessor.prototype.suspendRequest_ = function(request, response) { |
| 2189 | response.running = false; |
| 2190 | }; |
| 2191 | |
| 2192 | |
| 2193 | DebugCommandProcessor.prototype.versionRequest_ = function(request, response) { |
| 2194 | response.body = { |
| 2195 | V8Version: %GetV8Version() |
| 2196 | }; |
| 2197 | }; |
| 2198 | |
| 2199 | |
| 2200 | DebugCommandProcessor.prototype.changeLiveRequest_ = function( |
| 2201 | request, response) { |
| 2202 | if (!request.arguments) { |
| 2203 | return response.failed('Missing arguments'); |
| 2204 | } |
| 2205 | var script_id = request.arguments.script_id; |
| 2206 | var preview_only = !!request.arguments.preview_only; |
| 2207 | |
| 2208 | var scripts = %DebugGetLoadedScripts(); |
| 2209 | |
| 2210 | var the_script = null; |
| 2211 | for (var i = 0; i < scripts.length; i++) { |
| 2212 | if (scripts[i].id == script_id) { |
| 2213 | the_script = scripts[i]; |
| 2214 | } |
| 2215 | } |
| 2216 | if (!the_script) { |
| 2217 | response.failed('Script not found'); |
| 2218 | return; |
| 2219 | } |
| 2220 | |
| 2221 | var change_log = new GlobalArray(); |
| 2222 | |
| 2223 | if (!IS_STRING(request.arguments.new_source)) { |
| 2224 | throw "new_source argument expected"; |
| 2225 | } |
| 2226 | |
| 2227 | var new_source = request.arguments.new_source; |
| 2228 | |
| 2229 | var result_description; |
| 2230 | try { |
| 2231 | result_description = Debug.LiveEdit.SetScriptSource(the_script, |
| 2232 | new_source, preview_only, change_log); |
| 2233 | } catch (e) { |
| 2234 | if (e instanceof Debug.LiveEdit.Failure && "details" in e) { |
| 2235 | response.failed(e.message, e.details); |
| 2236 | return; |
| 2237 | } |
| 2238 | throw e; |
| 2239 | } |
| 2240 | response.body = {change_log: change_log, result: result_description}; |
| 2241 | |
| 2242 | if (!preview_only && !this.running_ && result_description.stack_modified) { |
| 2243 | response.body.stepin_recommended = true; |
| 2244 | } |
| 2245 | }; |
| 2246 | |
| 2247 | |
| 2248 | DebugCommandProcessor.prototype.restartFrameRequest_ = function( |
| 2249 | request, response) { |
| 2250 | if (!request.arguments) { |
| 2251 | return response.failed('Missing arguments'); |
| 2252 | } |
| 2253 | var frame = request.arguments.frame; |
| 2254 | |
| 2255 | // No frames to evaluate in frame. |
| 2256 | if (this.exec_state_.frameCount() == 0) { |
| 2257 | return response.failed('No frames'); |
| 2258 | } |
| 2259 | |
| 2260 | var frame_mirror; |
| 2261 | // Check whether a frame was specified. |
| 2262 | if (!IS_UNDEFINED(frame)) { |
| 2263 | var frame_number = TO_NUMBER(frame); |
| 2264 | if (frame_number < 0 || frame_number >= this.exec_state_.frameCount()) { |
| 2265 | return response.failed('Invalid frame "' + frame + '"'); |
| 2266 | } |
| 2267 | // Restart specified frame. |
| 2268 | frame_mirror = this.exec_state_.frame(frame_number); |
| 2269 | } else { |
| 2270 | // Restart selected frame. |
| 2271 | frame_mirror = this.exec_state_.frame(); |
| 2272 | } |
| 2273 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2274 | var result_description = frame_mirror.restart(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2275 | response.body = {result: result_description}; |
| 2276 | }; |
| 2277 | |
| 2278 | |
| 2279 | DebugCommandProcessor.prototype.debuggerFlagsRequest_ = function(request, |
| 2280 | response) { |
| 2281 | // Check for legal request. |
| 2282 | if (!request.arguments) { |
| 2283 | response.failed('Missing arguments'); |
| 2284 | return; |
| 2285 | } |
| 2286 | |
| 2287 | // Pull out arguments. |
| 2288 | var flags = request.arguments.flags; |
| 2289 | |
| 2290 | response.body = { flags: [] }; |
| 2291 | if (!IS_UNDEFINED(flags)) { |
| 2292 | for (var i = 0; i < flags.length; i++) { |
| 2293 | var name = flags[i].name; |
| 2294 | var debugger_flag = debugger_flags[name]; |
| 2295 | if (!debugger_flag) { |
| 2296 | continue; |
| 2297 | } |
| 2298 | if ('value' in flags[i]) { |
| 2299 | debugger_flag.setValue(flags[i].value); |
| 2300 | } |
| 2301 | response.body.flags.push({ name: name, value: debugger_flag.getValue() }); |
| 2302 | } |
| 2303 | } else { |
| 2304 | for (var name in debugger_flags) { |
| 2305 | var value = debugger_flags[name].getValue(); |
| 2306 | response.body.flags.push({ name: name, value: value }); |
| 2307 | } |
| 2308 | } |
| 2309 | }; |
| 2310 | |
| 2311 | |
| 2312 | DebugCommandProcessor.prototype.v8FlagsRequest_ = function(request, response) { |
| 2313 | var flags = request.arguments.flags; |
| 2314 | if (!flags) flags = ''; |
| 2315 | %SetFlags(flags); |
| 2316 | }; |
| 2317 | |
| 2318 | |
| 2319 | DebugCommandProcessor.prototype.gcRequest_ = function(request, response) { |
| 2320 | var type = request.arguments.type; |
| 2321 | if (!type) type = 'all'; |
| 2322 | |
| 2323 | var before = %GetHeapUsage(); |
| 2324 | %CollectGarbage(type); |
| 2325 | var after = %GetHeapUsage(); |
| 2326 | |
| 2327 | response.body = { "before": before, "after": after }; |
| 2328 | }; |
| 2329 | |
| 2330 | |
| 2331 | DebugCommandProcessor.prototype.dispatch_ = (function() { |
| 2332 | var proto = DebugCommandProcessor.prototype; |
| 2333 | return { |
| 2334 | "continue": proto.continueRequest_, |
| 2335 | "break" : proto.breakRequest_, |
| 2336 | "setbreakpoint" : proto.setBreakPointRequest_, |
| 2337 | "changebreakpoint": proto.changeBreakPointRequest_, |
| 2338 | "clearbreakpoint": proto.clearBreakPointRequest_, |
| 2339 | "clearbreakpointgroup": proto.clearBreakPointGroupRequest_, |
| 2340 | "disconnect": proto.disconnectRequest_, |
| 2341 | "setexceptionbreak": proto.setExceptionBreakRequest_, |
| 2342 | "listbreakpoints": proto.listBreakpointsRequest_, |
| 2343 | "backtrace": proto.backtraceRequest_, |
| 2344 | "frame": proto.frameRequest_, |
| 2345 | "scopes": proto.scopesRequest_, |
| 2346 | "scope": proto.scopeRequest_, |
| 2347 | "setvariablevalue": proto.setVariableValueRequest_, |
| 2348 | "evaluate": proto.evaluateRequest_, |
| 2349 | "lookup": proto.lookupRequest_, |
| 2350 | "references": proto.referencesRequest_, |
| 2351 | "source": proto.sourceRequest_, |
| 2352 | "scripts": proto.scriptsRequest_, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2353 | "suspend": proto.suspendRequest_, |
| 2354 | "version": proto.versionRequest_, |
| 2355 | "changelive": proto.changeLiveRequest_, |
| 2356 | "restartframe": proto.restartFrameRequest_, |
| 2357 | "flags": proto.debuggerFlagsRequest_, |
| 2358 | "v8flag": proto.v8FlagsRequest_, |
| 2359 | "gc": proto.gcRequest_, |
| 2360 | }; |
| 2361 | })(); |
| 2362 | |
| 2363 | |
| 2364 | // Check whether the previously processed command caused the VM to become |
| 2365 | // running. |
| 2366 | DebugCommandProcessor.prototype.isRunning = function() { |
| 2367 | return this.running_; |
| 2368 | }; |
| 2369 | |
| 2370 | |
| 2371 | DebugCommandProcessor.prototype.systemBreak = function(cmd, args) { |
| 2372 | return %SystemBreak(); |
| 2373 | }; |
| 2374 | |
| 2375 | |
| 2376 | /** |
| 2377 | * Convert an Object to its debugger protocol representation. The representation |
| 2378 | * may be serilized to a JSON object using JSON.stringify(). |
| 2379 | * This implementation simply runs through all string property names, converts |
| 2380 | * each property value to a protocol value and adds the property to the result |
| 2381 | * object. For type "object" the function will be called recursively. Note that |
| 2382 | * circular structures will cause infinite recursion. |
| 2383 | * @param {Object} object The object to format as protocol object. |
| 2384 | * @param {MirrorSerializer} mirror_serializer The serializer to use if any |
| 2385 | * mirror objects are encountered. |
| 2386 | * @return {Object} Protocol object value. |
| 2387 | */ |
| 2388 | function ObjectToProtocolObject_(object, mirror_serializer) { |
| 2389 | var content = {}; |
| 2390 | for (var key in object) { |
| 2391 | // Only consider string keys. |
| 2392 | if (typeof key == 'string') { |
| 2393 | // Format the value based on its type. |
| 2394 | var property_value_json = ValueToProtocolValue_(object[key], |
| 2395 | mirror_serializer); |
| 2396 | // Add the property if relevant. |
| 2397 | if (!IS_UNDEFINED(property_value_json)) { |
| 2398 | content[key] = property_value_json; |
| 2399 | } |
| 2400 | } |
| 2401 | } |
| 2402 | |
| 2403 | return content; |
| 2404 | } |
| 2405 | |
| 2406 | |
| 2407 | /** |
| 2408 | * Convert an array to its debugger protocol representation. It will convert |
| 2409 | * each array element to a protocol value. |
| 2410 | * @param {Array} array The array to format as protocol array. |
| 2411 | * @param {MirrorSerializer} mirror_serializer The serializer to use if any |
| 2412 | * mirror objects are encountered. |
| 2413 | * @return {Array} Protocol array value. |
| 2414 | */ |
| 2415 | function ArrayToProtocolArray_(array, mirror_serializer) { |
| 2416 | var json = []; |
| 2417 | for (var i = 0; i < array.length; i++) { |
| 2418 | json.push(ValueToProtocolValue_(array[i], mirror_serializer)); |
| 2419 | } |
| 2420 | return json; |
| 2421 | } |
| 2422 | |
| 2423 | |
| 2424 | /** |
| 2425 | * Convert a value to its debugger protocol representation. |
| 2426 | * @param {*} value The value to format as protocol value. |
| 2427 | * @param {MirrorSerializer} mirror_serializer The serializer to use if any |
| 2428 | * mirror objects are encountered. |
| 2429 | * @return {*} Protocol value. |
| 2430 | */ |
| 2431 | function ValueToProtocolValue_(value, mirror_serializer) { |
| 2432 | // Format the value based on its type. |
| 2433 | var json; |
| 2434 | switch (typeof value) { |
| 2435 | case 'object': |
| 2436 | if (value instanceof Mirror) { |
| 2437 | json = mirror_serializer.serializeValue(value); |
| 2438 | } else if (IS_ARRAY(value)){ |
| 2439 | json = ArrayToProtocolArray_(value, mirror_serializer); |
| 2440 | } else { |
| 2441 | json = ObjectToProtocolObject_(value, mirror_serializer); |
| 2442 | } |
| 2443 | break; |
| 2444 | |
| 2445 | case 'boolean': |
| 2446 | case 'string': |
| 2447 | case 'number': |
| 2448 | json = value; |
| 2449 | break; |
| 2450 | |
| 2451 | default: |
| 2452 | json = null; |
| 2453 | } |
| 2454 | return json; |
| 2455 | } |
| 2456 | |
| 2457 | |
| 2458 | // ------------------------------------------------------------------- |
| 2459 | // Exports |
| 2460 | |
| 2461 | utils.InstallConstants(global, [ |
| 2462 | "Debug", Debug, |
| 2463 | "DebugCommandProcessor", DebugCommandProcessor, |
| 2464 | "BreakEvent", BreakEvent, |
| 2465 | "CompileEvent", CompileEvent, |
| 2466 | "BreakPoint", BreakPoint, |
| 2467 | ]); |
| 2468 | |
| 2469 | // Functions needed by the debugger runtime. |
| 2470 | utils.InstallFunctions(utils, DONT_ENUM, [ |
| 2471 | "MakeExecutionState", MakeExecutionState, |
| 2472 | "MakeExceptionEvent", MakeExceptionEvent, |
| 2473 | "MakeBreakEvent", MakeBreakEvent, |
| 2474 | "MakeCompileEvent", MakeCompileEvent, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2475 | "MakeAsyncTaskEvent", MakeAsyncTaskEvent, |
| 2476 | "IsBreakPointTriggered", IsBreakPointTriggered, |
| 2477 | "UpdateScriptBreakPoints", UpdateScriptBreakPoints, |
| 2478 | ]); |
| 2479 | |
| 2480 | // Export to liveedit.js |
| 2481 | utils.Export(function(to) { |
| 2482 | to.GetScriptBreakPoints = GetScriptBreakPoints; |
| 2483 | }); |
| 2484 | |
| 2485 | }) |