| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 part of html; | |
| 6 | |
| 7 class _Property { | |
| 8 _Property(this.name) : | |
| 9 _hasValue = false, | |
| 10 writable = false, | |
| 11 isMethod = false, | |
| 12 isOwn = true, | |
| 13 wasThrown = false; | |
| 14 | |
| 15 bool get hasValue => _hasValue; | |
| 16 get value => _value; | |
| 17 set value(v) { | |
| 18 _value = v; | |
| 19 _hasValue = true; | |
| 20 } | |
| 21 | |
| 22 final String name; | |
| 23 Function setter; | |
| 24 Function getter; | |
| 25 var _value; | |
| 26 bool _hasValue; | |
| 27 bool writable; | |
| 28 bool isMethod; | |
| 29 bool isOwn; | |
| 30 bool wasThrown; | |
| 31 } | |
| 32 | |
| 33 class _ConsoleVariables { | |
| 34 Map<String, Object> _data = new Map<String, Object>(); | |
| 35 | |
| 36 /** | |
| 37 * Forward member accesses to the backing JavaScript object. | |
| 38 */ | |
| 39 noSuchMethod(Invocation invocation) { | |
| 40 String member = MirrorSystem.getName(invocation.memberName); | |
| 41 if (invocation.isGetter) { | |
| 42 return _data[member]; | |
| 43 } else if (invocation.isSetter) { | |
| 44 assert(member.endsWith('=')); | |
| 45 member = member.substring(0, member.length - 1); | |
| 46 _data[member] = invocation.positionalArguments[0]; | |
| 47 } else { | |
| 48 return Function.apply(_data[member], invocation.positionalArguments, | |
| 49 invocation.namedArguments); | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 void clear() => _data.clear(); | |
| 54 | |
| 55 /** | |
| 56 * List all variables currently defined. | |
| 57 */ | |
| 58 List variables() => _data.keys.toList(); | |
| 59 | |
| 60 void setVariable(String name, value) { | |
| 61 _data[name] = value; | |
| 62 } | |
| 63 } | |
| 64 | |
| 65 /** | |
| 66 * Base class for invocation trampolines used to closurize methods, getters | |
| 67 * and setters. | |
| 68 */ | |
| 69 abstract class _Trampoline implements Function { | |
| 70 final ObjectMirror _receiver; | |
| 71 final MethodMirror _methodMirror; | |
| 72 final Symbol _selector; | |
| 73 | |
| 74 _Trampoline(this._receiver, this._methodMirror, this._selector); | |
| 75 } | |
| 76 | |
| 77 class _MethodTrampoline extends _Trampoline { | |
| 78 _MethodTrampoline(ObjectMirror receiver, MethodMirror methodMirror, | |
| 79 Symbol selector) : | |
| 80 super(receiver, methodMirror, selector); | |
| 81 | |
| 82 noSuchMethod(Invocation msg) { | |
| 83 if (msg.memberName != #call) return super.noSuchMethod(msg); | |
| 84 return _receiver.invoke(_selector, | |
| 85 msg.positionalArguments, | |
| 86 msg.namedArguments).reflectee; | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 /** | |
| 91 * Invocation trampoline class used to closurize getters. | |
| 92 */ | |
| 93 class _GetterTrampoline extends _Trampoline { | |
| 94 _GetterTrampoline(ObjectMirror receiver, MethodMirror methodMirror, | |
| 95 Symbol selector) : | |
| 96 super(receiver, methodMirror, selector); | |
| 97 | |
| 98 call() => _receiver.getField(_selector).reflectee; | |
| 99 } | |
| 100 | |
| 101 /** | |
| 102 * Invocation trampoline class used to closurize setters. | |
| 103 */ | |
| 104 class _SetterTrampoline extends _Trampoline { | |
| 105 _SetterTrampoline(ObjectMirror receiver, MethodMirror methodMirror, | |
| 106 Symbol selector) : | |
| 107 super(receiver, methodMirror, selector); | |
| 108 | |
| 109 call(value) { | |
| 110 _receiver.setField(_selector, value); | |
| 111 } | |
| 112 } | |
| 113 | |
| 114 class _Utils { | |
| 115 static double dateTimeToDouble(DateTime dateTime) => | |
| 116 dateTime.millisecondsSinceEpoch.toDouble(); | |
| 117 static DateTime doubleToDateTime(double dateTime) { | |
| 118 try { | |
| 119 return new DateTime.fromMillisecondsSinceEpoch(dateTime.toInt()); | |
| 120 } catch(_) { | |
| 121 // TODO(antonnm): treat exceptions properly in bindings and | |
| 122 // find out how to treat NaNs. | |
| 123 return null; | |
| 124 } | |
| 125 } | |
| 126 | |
| 127 static List convertToList(List list) { | |
| 128 // FIXME: [possible optimization]: do not copy the array if Dart_IsArray is
fine w/ it. | |
| 129 final length = list.length; | |
| 130 List result = new List(length); | |
| 131 result.setRange(0, length, list); | |
| 132 return result; | |
| 133 } | |
| 134 | |
| 135 static List convertMapToList(Map map) { | |
| 136 List result = []; | |
| 137 map.forEach((k, v) => result.addAll([k, v])); | |
| 138 return result; | |
| 139 } | |
| 140 | |
| 141 static int convertCanvasElementGetContextMap(Map map) { | |
| 142 int result = 0; | |
| 143 if (map['alpha'] == true) result |= 0x01; | |
| 144 if (map['depth'] == true) result |= 0x02; | |
| 145 if (map['stencil'] == true) result |= 0x4; | |
| 146 if (map['antialias'] == true) result |= 0x08; | |
| 147 if (map['premultipliedAlpha'] == true) result |= 0x10; | |
| 148 if (map['preserveDrawingBuffer'] == true) result |= 0x20; | |
| 149 | |
| 150 return result; | |
| 151 } | |
| 152 | |
| 153 static void populateMap(Map result, List list) { | |
| 154 for (int i = 0; i < list.length; i += 2) { | |
| 155 result[list[i]] = list[i + 1]; | |
| 156 } | |
| 157 } | |
| 158 | |
| 159 static bool isMap(obj) => obj is Map; | |
| 160 | |
| 161 static List toListIfIterable(obj) => obj is Iterable ? obj.toList() : null; | |
| 162 | |
| 163 static Map createMap() => {}; | |
| 164 | |
| 165 static parseJson(String jsonSource) => const JsonDecoder().convert(jsonSource)
; | |
| 166 | |
| 167 static makeUnimplementedError(String fileName, int lineNo) { | |
| 168 return new UnsupportedError('[info: $fileName:$lineNo]'); | |
| 169 } | |
| 170 | |
| 171 static bool isTypeSubclassOf(Type type, Type other) { | |
| 172 if (type == other) { | |
| 173 return true; | |
| 174 } | |
| 175 var superclass = reflectClass(type).superclass; | |
| 176 if (superclass != null) { | |
| 177 return isTypeSubclassOf(superclass.reflectedType, other); | |
| 178 } | |
| 179 return false; | |
| 180 } | |
| 181 | |
| 182 static Element getAndValidateNativeType(Type type, String tagName) { | |
| 183 var element = new Element.tag(tagName); | |
| 184 if (!isTypeSubclassOf(type, element.runtimeType)) { | |
| 185 return null; | |
| 186 } | |
| 187 return element; | |
| 188 } | |
| 189 | |
| 190 static window() => _blink.Blink_Utils.window(); | |
| 191 static forwardingPrint(String message) => _blink.Blink_Utils.forwardingPrint(m
essage); | |
| 192 // TODO(vsm): Make this API compatible with spawnUri. It should also | |
| 193 // return a Future<Isolate>. | |
| 194 static spawnDomUri(String uri) => _blink.Blink_Utils.spawnDomUri(uri); | |
| 195 | |
| 196 // The following methods were added for debugger integration to make working | |
| 197 // with the Dart C mirrors API simpler. | |
| 198 // TODO(jacobr): consider moving them to a separate library. | |
| 199 // If Dart supported dynamic code injection, we would only inject this code | |
| 200 // when the debugger is invoked. | |
| 201 | |
| 202 /** | |
| 203 * Strips the private secret prefix from member names of the form | |
| 204 * someName@hash. | |
| 205 */ | |
| 206 static String stripMemberName(String name) { | |
| 207 int endIndex = name.indexOf('@'); | |
| 208 return endIndex > 0 ? name.substring(0, endIndex) : name; | |
| 209 } | |
| 210 | |
| 211 /** | |
| 212 * Takes a list containing variable names and corresponding values and | |
| 213 * returns a map from normalized names to values. Variable names are assumed | |
| 214 * to have list offsets 2*n values at offset 2*n+1. This method is required | |
| 215 * because Dart_GetLocalVariables returns a list instead of an object that | |
| 216 * can be queried to lookup names and values. | |
| 217 */ | |
| 218 static Map<String, dynamic> createLocalVariablesMap(List localVariables) { | |
| 219 var map = {}; | |
| 220 for (int i = 0; i < localVariables.length; i+=2) { | |
| 221 map[stripMemberName(localVariables[i])] = localVariables[i+1]; | |
| 222 } | |
| 223 return map; | |
| 224 } | |
| 225 | |
| 226 static _ConsoleVariables _consoleTempVariables = new _ConsoleVariables(); | |
| 227 | |
| 228 /** | |
| 229 * Takes an [expression] and a list of [local] variable and returns an | |
| 230 * expression for a closure with a body matching the original expression | |
| 231 * where locals are passed in as arguments. Returns a list containing the | |
| 232 * String expression for the closure and the list of arguments that should | |
| 233 * be passed to it. The expression should then be evaluated using | |
| 234 * Dart_EvaluateExpr which will generate a closure that should be invoked | |
| 235 * with the list of arguments passed to this method. | |
| 236 * | |
| 237 * For example: | |
| 238 * <code> | |
| 239 * _consoleTempVariables = {'a' : someValue, 'b': someOtherValue} | |
| 240 * wrapExpressionAsClosure("foo + bar + a", ["bar", 40, "foo", 2], true) | |
| 241 * </code> | |
| 242 * will return: | |
| 243 * <code> | |
| 244 * ["""(final $consoleVariables, final bar, final foo, final a, final b) => | |
| 245 * (foo + bar + a | |
| 246 * )""", | |
| 247 * [_consoleTempVariables, 40, 2, someValue, someOtherValue]] | |
| 248 * </code> | |
| 249 */ | |
| 250 static List wrapExpressionAsClosure(String expression, List locals, | |
| 251 bool includeCommandLineAPI) { | |
| 252 var args = {}; | |
| 253 var sb = new StringBuffer("("); | |
| 254 addArg(arg, value) { | |
| 255 arg = stripMemberName(arg); | |
| 256 if (args.containsKey(arg)) return; | |
| 257 // We ignore arguments with the name 'this' rather than throwing an | |
| 258 // exception because Dart_GetLocalVariables includes 'this' and it | |
| 259 // is more convenient to filter it out here than from C++ code. | |
| 260 // 'this' needs to be handled by calling Dart_EvaluateExpr with | |
| 261 // 'this' as the target rather than by passing it as an argument. | |
| 262 if (arg == 'this') return; | |
| 263 if (args.isNotEmpty) { | |
| 264 sb.write(", "); | |
| 265 } | |
| 266 sb.write("final $arg"); | |
| 267 args[arg] = value; | |
| 268 } | |
| 269 | |
| 270 if (includeCommandLineAPI) { | |
| 271 addArg("\$consoleVariables", _consoleTempVariables); | |
| 272 | |
| 273 // FIXME: use a real Dart tokenizer. The following regular expressions | |
| 274 // only allow setting variables at the immediate start of the expression | |
| 275 // to limit the number of edge cases we have to handle. | |
| 276 | |
| 277 // Match expressions that start with "var x" | |
| 278 final _VARIABLE_DECLARATION = new RegExp("^(\\s*)var\\s+(\\w+)"); | |
| 279 // Match expressions that start with "someExistingConsoleVar =" | |
| 280 final _SET_VARIABLE = new RegExp("^(\\s*)(\\w+)(\\s*=)"); | |
| 281 // Match trailing semicolons. | |
| 282 final _ENDING_SEMICOLONS = new RegExp("(;\\s*)*\$"); | |
| 283 expression = expression.replaceAllMapped(_VARIABLE_DECLARATION, | |
| 284 (match) { | |
| 285 var variableName = match[2]; | |
| 286 // Set the console variable if it isn't already set. | |
| 287 if (!_consoleTempVariables._data.containsKey(variableName)) { | |
| 288 _consoleTempVariables._data[variableName] = null; | |
| 289 } | |
| 290 return "${match[1]}\$consoleVariables.${variableName}"; | |
| 291 }); | |
| 292 | |
| 293 expression = expression.replaceAllMapped(_SET_VARIABLE, | |
| 294 (match) { | |
| 295 var variableName = match[2]; | |
| 296 // Only rewrite if the name matches an existing console variable. | |
| 297 if (_consoleTempVariables._data.containsKey(variableName)) { | |
| 298 return "${match[1]}\$consoleVariables.${variableName}${match[3]}"; | |
| 299 } else { | |
| 300 return match[0]; | |
| 301 } | |
| 302 }); | |
| 303 | |
| 304 // We only allow dart expressions not Dart statements. Silently remove | |
| 305 // trailing semicolons the user might have added by accident to reduce the | |
| 306 // number of spurious compile errors. | |
| 307 expression = expression.replaceFirst(_ENDING_SEMICOLONS, ""); | |
| 308 } | |
| 309 | |
| 310 if (locals != null) { | |
| 311 for (int i = 0; i < locals.length; i+= 2) { | |
| 312 addArg(locals[i], locals[i+1]); | |
| 313 } | |
| 314 } | |
| 315 // Inject all the already defined console variables. | |
| 316 _consoleTempVariables._data.forEach(addArg); | |
| 317 | |
| 318 // TODO(jacobr): remove the parentheses around the expresson once | |
| 319 // dartbug.com/13723 is fixed. Currently we wrap expression in parentheses | |
| 320 // to ensure only valid Dart expressions are allowed. Otherwise the DartVM | |
| 321 // quietly ignores trailing Dart statements resulting in user confusion | |
| 322 // when part of an invalid expression they entered is ignored. | |
| 323 sb..write(') => (\n$expression\n)'); | |
| 324 return [sb.toString(), args.values.toList(growable: false)]; | |
| 325 } | |
| 326 | |
| 327 static String _getShortSymbolName(Symbol symbol, | |
| 328 DeclarationMirror declaration) { | |
| 329 var name = MirrorSystem.getName(symbol); | |
| 330 if (declaration is MethodMirror) { | |
| 331 if (declaration.isSetter && name[name.length-1] == "=") { | |
| 332 return name.substring(0, name.length-1); | |
| 333 } | |
| 334 if (declaration.isConstructor) { | |
| 335 return name.substring(name.indexOf('.') + 1); | |
| 336 } | |
| 337 } | |
| 338 return name; | |
| 339 } | |
| 340 | |
| 341 /** | |
| 342 * Returns a list of completions to use if the receiver is o. | |
| 343 */ | |
| 344 static List<String> getCompletions(o) { | |
| 345 MirrorSystem system = currentMirrorSystem(); | |
| 346 var completions = new Set<String>(); | |
| 347 addAll(Map<Symbol, dynamic> map, bool isStatic) { | |
| 348 map.forEach((symbol, mirror) { | |
| 349 if (mirror.isStatic == isStatic && !mirror.isPrivate) { | |
| 350 var name = MirrorSystem.getName(symbol); | |
| 351 if (mirror is MethodMirror && mirror.isSetter) | |
| 352 name = name.substring(0, name.length - 1); | |
| 353 completions.add(name); | |
| 354 } | |
| 355 }); | |
| 356 } | |
| 357 | |
| 358 addForClass(ClassMirror mirror, bool isStatic) { | |
| 359 if (mirror == null) | |
| 360 return; | |
| 361 addAll(mirror.declarations, isStatic); | |
| 362 if (mirror.superclass != null) | |
| 363 addForClass(mirror.superclass, isStatic); | |
| 364 for (var interface in mirror.superinterfaces) { | |
| 365 addForClass(interface, isStatic); | |
| 366 } | |
| 367 } | |
| 368 | |
| 369 if (o is Type) { | |
| 370 addForClass(reflectClass(o), true); | |
| 371 } else { | |
| 372 addForClass(reflect(o).type, false); | |
| 373 } | |
| 374 return completions.toList(growable: false); | |
| 375 } | |
| 376 | |
| 377 /** | |
| 378 * Adds all candidate String completitions from [declarations] to [output] | |
| 379 * filtering based on [staticContext] and [includePrivate]. | |
| 380 */ | |
| 381 static void _getCompletionsHelper(ClassMirror classMirror, | |
| 382 bool staticContext, LibraryMirror libraryMirror, Set<String> output) { | |
| 383 bool includePrivate = libraryMirror == classMirror.owner; | |
| 384 classMirror.declarations.forEach((symbol, declaration) { | |
| 385 if (!includePrivate && declaration.isPrivate) return; | |
| 386 if (declaration is VariableMirror) { | |
| 387 if (staticContext != declaration.isStatic) return; | |
| 388 } else if (declaration is MethodMirror) { | |
| 389 if (declaration.isOperator) return; | |
| 390 if (declaration.isConstructor) { | |
| 391 if (!staticContext) return; | |
| 392 var name = MirrorSystem.getName(declaration.constructorName); | |
| 393 if (name.isNotEmpty) output.add(name); | |
| 394 return; | |
| 395 } | |
| 396 if (staticContext != declaration.isStatic) return; | |
| 397 } else if (declaration is TypeMirror) { | |
| 398 return; | |
| 399 } | |
| 400 output.add(_getShortSymbolName(symbol, declaration)); | |
| 401 }); | |
| 402 | |
| 403 if (!staticContext) { | |
| 404 for (var interface in classMirror.superinterfaces) { | |
| 405 _getCompletionsHelper(interface, staticContext, | |
| 406 libraryMirror, output); | |
| 407 } | |
| 408 if (classMirror.superclass != null) { | |
| 409 _getCompletionsHelper(classMirror.superclass, staticContext, | |
| 410 libraryMirror, output); | |
| 411 } | |
| 412 } | |
| 413 } | |
| 414 | |
| 415 static void _getLibraryCompletionsHelper( | |
| 416 LibraryMirror library, bool includePrivate, Set<String> output) { | |
| 417 library.declarations.forEach((symbol, declaration) { | |
| 418 if (!includePrivate && declaration.isPrivate) return; | |
| 419 output.add(_getShortSymbolName(symbol, declaration)); | |
| 420 }); | |
| 421 } | |
| 422 | |
| 423 static LibraryMirror getLibraryMirror(String url) => | |
| 424 currentMirrorSystem().libraries[Uri.parse(url)]; | |
| 425 | |
| 426 /** | |
| 427 * Get code completions for [o] only showing privates from [libraryUrl]. | |
| 428 */ | |
| 429 static List<String> getObjectCompletions(o, String libraryUrl) { | |
| 430 var classMirror; | |
| 431 bool staticContext; | |
| 432 if (o is Type) { | |
| 433 classMirror = reflectClass(o); | |
| 434 staticContext = true; | |
| 435 } else { | |
| 436 classMirror = reflect(o).type; | |
| 437 staticContext = false; | |
| 438 } | |
| 439 var names = new Set<String>(); | |
| 440 getClassCompletions(classMirror, names, staticContext, libraryUrl); | |
| 441 return names.toList()..sort(); | |
| 442 } | |
| 443 | |
| 444 static void getClassCompletions(ClassMirror classMirror, Set<String> names, | |
| 445 bool staticContext, String libraryUrl) { | |
| 446 LibraryMirror libraryMirror = getLibraryMirror(libraryUrl); | |
| 447 _getCompletionsHelper(classMirror, staticContext, libraryMirror, names); | |
| 448 } | |
| 449 | |
| 450 static List<String> getLibraryCompletions(String url) { | |
| 451 var names = new Set<String>(); | |
| 452 _getLibraryCompletionsHelper(getLibraryMirror(url), true, names); | |
| 453 return names.toList(); | |
| 454 } | |
| 455 | |
| 456 /** | |
| 457 * Get valid code completitions from within a library and all libraries | |
| 458 * imported by that library. | |
| 459 */ | |
| 460 static List<String> getLibraryCompletionsIncludingImports(String url) { | |
| 461 var names = new Set<String>(); | |
| 462 var libraryMirror = getLibraryMirror(url); | |
| 463 _getLibraryCompletionsHelper(libraryMirror, true, names); | |
| 464 for (var dependency in libraryMirror.libraryDependencies) { | |
| 465 if (dependency.isImport) { | |
| 466 if (dependency.prefix == null) { | |
| 467 _getLibraryCompletionsHelper(dependency.targetLibrary, false, names); | |
| 468 } else { | |
| 469 names.add(MirrorSystem.getName(dependency.prefix)); | |
| 470 } | |
| 471 } | |
| 472 } | |
| 473 return names.toList(); | |
| 474 } | |
| 475 | |
| 476 static final SIDE_EFFECT_FREE_LIBRARIES = new Set<String>() | |
| 477 ..add('dart:html') | |
| 478 ..add('dart:indexed_db') | |
| 479 ..add('dart:svg') | |
| 480 ..add('dart:typed_data') | |
| 481 ..add('dart:web_audio') | |
| 482 ..add('dart:web_gl') | |
| 483 ..add('dart:web_sql'); | |
| 484 | |
| 485 static LibraryMirror _getLibrary(MethodMirror methodMirror) { | |
| 486 var owner = methodMirror.owner; | |
| 487 if (owner is ClassMirror) { | |
| 488 return owner; | |
| 489 } else if (owner is LibraryMirror) { | |
| 490 return owner; | |
| 491 } | |
| 492 return null; | |
| 493 } | |
| 494 | |
| 495 /** | |
| 496 * For parity with the JavaScript debugger, we treat some getters as if | |
| 497 * they are fields so that users can see their values immediately. | |
| 498 * This matches JavaScript's behavior for getters on DOM objects. | |
| 499 * In the future we should consider adding an annotation to tag getters | |
| 500 * in user libraries as side effect free. | |
| 501 */ | |
| 502 static bool _isSideEffectFreeGetter(MethodMirror methodMirror, | |
| 503 LibraryMirror libraryMirror) { | |
| 504 // This matches JavaScript behavior. We should consider displaying | |
| 505 // getters for all dart platform libraries rather than just the DOM | |
| 506 // libraries. | |
| 507 return libraryMirror.uri.scheme == 'dart' && | |
| 508 SIDE_EFFECT_FREE_LIBRARIES.contains(libraryMirror.uri.toString()); | |
| 509 } | |
| 510 | |
| 511 /** | |
| 512 * Whether we should treat a property as a field for the purposes of the | |
| 513 * debugger. | |
| 514 */ | |
| 515 static bool treatPropertyAsField(MethodMirror methodMirror, | |
| 516 LibraryMirror libraryMirror) { | |
| 517 return (methodMirror.isGetter || methodMirror.isSetter) && | |
| 518 (methodMirror.isSynthetic || | |
| 519 _isSideEffectFreeGetter(methodMirror,libraryMirror)); | |
| 520 } | |
| 521 | |
| 522 // TODO(jacobr): generate more concise function descriptions instead of | |
| 523 // dumping the entire function source. | |
| 524 static String describeFunction(function) { | |
| 525 if (function is _Trampoline) return function._methodMirror.source; | |
| 526 try { | |
| 527 var mirror = reflect(function); | |
| 528 return mirror.function.source; | |
| 529 } catch (e) { | |
| 530 return function.toString(); | |
| 531 } | |
| 532 } | |
| 533 | |
| 534 static List getInvocationTrampolineDetails(_Trampoline method) { | |
| 535 var loc = method._methodMirror.location; | |
| 536 return [loc.line, loc.column, loc.sourceUri.toString(), | |
| 537 MirrorSystem.getName(method._selector)]; | |
| 538 } | |
| 539 | |
| 540 static List getLibraryProperties(String libraryUrl, bool ownProperties, | |
| 541 bool accessorPropertiesOnly) { | |
| 542 var properties = new Map<String, _Property>(); | |
| 543 var libraryMirror = getLibraryMirror(libraryUrl); | |
| 544 _addInstanceMirrors(libraryMirror, libraryMirror, | |
| 545 libraryMirror.declarations, | |
| 546 ownProperties, accessorPropertiesOnly, false, false, | |
| 547 properties); | |
| 548 if (!accessorPropertiesOnly) { | |
| 549 // We need to add class properties for all classes in the library. | |
| 550 libraryMirror.declarations.forEach((symbol, declarationMirror) { | |
| 551 if (declarationMirror is ClassMirror) { | |
| 552 var name = MirrorSystem.getName(symbol); | |
| 553 if (declarationMirror.hasReflectedType | |
| 554 && !properties.containsKey(name)) { | |
| 555 properties[name] = new _Property(name) | |
| 556 ..value = declarationMirror.reflectedType; | |
| 557 } | |
| 558 } | |
| 559 }); | |
| 560 } | |
| 561 return packageProperties(properties); | |
| 562 } | |
| 563 | |
| 564 static List getObjectProperties(o, bool ownProperties, | |
| 565 bool accessorPropertiesOnly) { | |
| 566 var properties = new Map<String, _Property>(); | |
| 567 var names = new Set<String>(); | |
| 568 var objectMirror = reflect(o); | |
| 569 var classMirror = objectMirror.type; | |
| 570 _addInstanceMirrors(objectMirror, classMirror.owner, | |
| 571 classMirror.instanceMembers, | |
| 572 ownProperties, accessorPropertiesOnly, false, true, | |
| 573 properties); | |
| 574 return packageProperties(properties); | |
| 575 } | |
| 576 | |
| 577 static List getObjectClassProperties(o, bool ownProperties, | |
| 578 bool accessorPropertiesOnly) { | |
| 579 var properties = new Map<String, _Property>(); | |
| 580 var objectMirror = reflect(o); | |
| 581 var classMirror = objectMirror.type; | |
| 582 _addInstanceMirrors(objectMirror, classMirror.owner, | |
| 583 classMirror.instanceMembers, | |
| 584 ownProperties, accessorPropertiesOnly, true, false, | |
| 585 properties); | |
| 586 _addStatics(classMirror, properties, accessorPropertiesOnly); | |
| 587 return packageProperties(properties); | |
| 588 } | |
| 589 | |
| 590 static List getClassProperties(Type t, bool ownProperties, | |
| 591 bool accessorPropertiesOnly) { | |
| 592 var properties = new Map<String, _Property>(); | |
| 593 var classMirror = reflectClass(t); | |
| 594 _addStatics(classMirror, properties, accessorPropertiesOnly); | |
| 595 return packageProperties(properties); | |
| 596 } | |
| 597 | |
| 598 static void _addStatics(ClassMirror classMirror, | |
| 599 Map<String, _Property> properties, | |
| 600 bool accessorPropertiesOnly) { | |
| 601 var libraryMirror = classMirror.owner; | |
| 602 classMirror.declarations.forEach((symbol, declaration) { | |
| 603 var name = _getShortSymbolName(symbol, declaration); | |
| 604 if (name.isEmpty) return; | |
| 605 if (declaration is VariableMirror) { | |
| 606 if (accessorPropertiesOnly) return; | |
| 607 if (!declaration.isStatic) return; | |
| 608 properties.putIfAbsent(name, () => new _Property(name)) | |
| 609 ..value = classMirror.getField(symbol).reflectee | |
| 610 ..writable = !declaration.isFinal && !declaration.isConst; | |
| 611 } else if (declaration is MethodMirror) { | |
| 612 MethodMirror methodMirror = declaration; | |
| 613 // FIXMEDART: should we display constructors? | |
| 614 if (methodMirror.isConstructor) return; | |
| 615 if (!methodMirror.isStatic) return; | |
| 616 if (accessorPropertiesOnly) { | |
| 617 if (methodMirror.isRegularMethod || | |
| 618 treatPropertyAsField(methodMirror, libraryMirror)) { | |
| 619 return; | |
| 620 } | |
| 621 } else if (!methodMirror.isRegularMethod && | |
| 622 !treatPropertyAsField(methodMirror, libraryMirror)) { | |
| 623 return; | |
| 624 } | |
| 625 var property = properties.putIfAbsent(name, () => new _Property(name)); | |
| 626 _fillMethodMirrorProperty(libraryMirror, classMirror, methodMirror, | |
| 627 symbol, accessorPropertiesOnly, property); | |
| 628 } | |
| 629 }); | |
| 630 } | |
| 631 | |
| 632 static void _fillMethodMirrorProperty(LibraryMirror libraryMirror, | |
| 633 methodOwner, MethodMirror methodMirror, Symbol symbol, | |
| 634 bool accessorPropertiesOnly, _Property property) { | |
| 635 if (methodMirror.isRegularMethod) { | |
| 636 property | |
| 637 ..value = new _MethodTrampoline(methodOwner, methodMirror, symbol) | |
| 638 ..isMethod = true; | |
| 639 } else if (methodMirror.isGetter) { | |
| 640 if (treatPropertyAsField(methodMirror, libraryMirror)) { | |
| 641 try { | |
| 642 property.value = methodOwner.getField(symbol).reflectee; | |
| 643 } catch (e) { | |
| 644 property | |
| 645 ..wasThrown = true | |
| 646 ..value = e; | |
| 647 } | |
| 648 } else if (accessorPropertiesOnly) { | |
| 649 property.getter = new _GetterTrampoline(methodOwner, | |
| 650 methodMirror, symbol); | |
| 651 } | |
| 652 } else if (methodMirror.isSetter) { | |
| 653 if (accessorPropertiesOnly && | |
| 654 !treatPropertyAsField(methodMirror, libraryMirror)) { | |
| 655 property.setter = new _SetterTrampoline(methodOwner, | |
| 656 methodMirror, MirrorSystem.getSymbol(property.name, libraryMirror)); | |
| 657 } | |
| 658 property.writable = true; | |
| 659 } | |
| 660 } | |
| 661 | |
| 662 /** | |
| 663 * Helper method that handles collecting up properties from classes | |
| 664 * or libraries using the filters [ownProperties], [accessorPropertiesOnly], | |
| 665 * [hideFields], and [hideMethods] to determine which properties are | |
| 666 * collected. [accessorPropertiesOnly] specifies whether all properties | |
| 667 * should be returned or just accessors. [hideFields] specifies whether | |
| 668 * fields should be hidden. hideMethods specifies whether methods should be | |
| 669 * shown or hidden. [ownProperties] is not currently used but is part of the | |
| 670 * Blink devtools API for enumerating properties. | |
| 671 */ | |
| 672 static void _addInstanceMirrors( | |
| 673 ObjectMirror objectMirror, | |
| 674 LibraryMirror libraryMirror, | |
| 675 Map<Symbol, Mirror> declarations, | |
| 676 bool ownProperties, bool accessorPropertiesOnly, | |
| 677 bool hideFields, bool hideMethods, | |
| 678 Map<String, _Property> properties) { | |
| 679 declarations.forEach((symbol, declaration) { | |
| 680 if (declaration is TypedefMirror || declaration is ClassMirror) return; | |
| 681 var name = _getShortSymbolName(symbol, declaration); | |
| 682 if (name.isEmpty) return; | |
| 683 bool isField = declaration is VariableMirror || | |
| 684 (declaration is MethodMirror && | |
| 685 treatPropertyAsField(declaration, libraryMirror)); | |
| 686 if ((isField && hideFields) || (hideMethods && !isField)) return; | |
| 687 if (accessorPropertiesOnly) { | |
| 688 if (declaration is VariableMirror || declaration.isRegularMethod || | |
| 689 isField) { | |
| 690 return; | |
| 691 } | |
| 692 } else if (declaration is MethodMirror && | |
| 693 (declaration.isGetter || declaration.isSetter) && | |
| 694 !treatPropertyAsField(declaration, libraryMirror)) { | |
| 695 return; | |
| 696 } | |
| 697 var property = properties.putIfAbsent(name, () => new _Property(name)); | |
| 698 if (declaration is VariableMirror) { | |
| 699 property | |
| 700 ..value = objectMirror.getField(symbol).reflectee | |
| 701 ..writable = !declaration.isFinal && !declaration.isConst; | |
| 702 return; | |
| 703 } | |
| 704 _fillMethodMirrorProperty(libraryMirror, objectMirror, declaration, | |
| 705 symbol, accessorPropertiesOnly, property); | |
| 706 }); | |
| 707 } | |
| 708 | |
| 709 /** | |
| 710 * Flatten down the properties data structure into a List that is easy to | |
| 711 * access from native code. | |
| 712 */ | |
| 713 static List packageProperties(Map<String, _Property> properties) { | |
| 714 var ret = []; | |
| 715 for (var property in properties.values) { | |
| 716 ret.addAll([property.name, | |
| 717 property.setter, | |
| 718 property.getter, | |
| 719 property.value, | |
| 720 property.hasValue, | |
| 721 property.writable, | |
| 722 property.isMethod, | |
| 723 property.isOwn, | |
| 724 property.wasThrown]); | |
| 725 } | |
| 726 return ret; | |
| 727 } | |
| 728 | |
| 729 /** | |
| 730 * Get a property, returning null if the property does not exist. | |
| 731 * For private property names, we attempt to resolve the property in the | |
| 732 * context of each library that the property name could be associated with. | |
| 733 */ | |
| 734 static getObjectPropertySafe(o, String propertyName) { | |
| 735 var objectMirror = reflect(o); | |
| 736 var classMirror = objectMirror.type; | |
| 737 if (propertyName.startsWith("_")) { | |
| 738 var attemptedLibraries = new Set<LibraryMirror>(); | |
| 739 while (classMirror != null) { | |
| 740 LibraryMirror library = classMirror.owner; | |
| 741 if (!attemptedLibraries.contains(library)) { | |
| 742 try { | |
| 743 return objectMirror.getField( | |
| 744 MirrorSystem.getSymbol(propertyName, library)).reflectee; | |
| 745 } catch (e) { } | |
| 746 attemptedLibraries.add(library); | |
| 747 } | |
| 748 classMirror = classMirror.superclass; | |
| 749 } | |
| 750 return null; | |
| 751 } | |
| 752 try { | |
| 753 return objectMirror.getField( | |
| 754 MirrorSystem.getSymbol(propertyName)).reflectee; | |
| 755 } catch (e) { | |
| 756 return null; | |
| 757 } | |
| 758 } | |
| 759 | |
| 760 /** | |
| 761 * Helper to wrap the inspect method on InjectedScriptHost to provide the | |
| 762 * inspect method required for the | |
| 763 */ | |
| 764 static List consoleApi(host) { | |
| 765 return [ | |
| 766 "inspect", | |
| 767 (o) { | |
| 768 host.inspect(o, null); | |
| 769 return o; | |
| 770 }, | |
| 771 "dir", | |
| 772 window().console.dir, | |
| 773 "dirxml", | |
| 774 window().console.dirxml | |
| 775 // FIXME: add copy method. | |
| 776 ]; | |
| 777 } | |
| 778 | |
| 779 static List getMapKeyList(Map map) => map.keys.toList(); | |
| 780 | |
| 781 static bool isNoSuchMethodError(obj) => obj is NoSuchMethodError; | |
| 782 | |
| 783 static void register(Document document, String tag, Type type, | |
| 784 String extendsTagName) { | |
| 785 var nativeClass = _validateCustomType(type); | |
| 786 | |
| 787 if (extendsTagName == null) { | |
| 788 if (nativeClass.reflectedType != HtmlElement) { | |
| 789 throw new UnsupportedError('Class must provide extendsTag if base ' | |
| 790 'native class is not HTMLElement'); | |
| 791 } | |
| 792 } | |
| 793 | |
| 794 _register(document, tag, type, extendsTagName); | |
| 795 } | |
| 796 | |
| 797 static void _register(Document document, String tag, Type customType, | |
| 798 String extendsTagName) => _blink.Blink_Utils.register(document, tag, customT
ype, extendsTagName); | |
| 799 | |
| 800 static Element createElement(Document document, String tagName) => | |
| 801 _blink.Blink_Utils.createElement(document, tagName); | |
| 802 | |
| 803 static void initializeCustomElement(HtmlElement element) => | |
| 804 _blink.Blink_Utils.initializeCustomElement(element); | |
| 805 | |
| 806 static Element changeElementWrapper(HtmlElement element, Type type) => | |
| 807 _blink.Blink_Utils.changeElementWrapper(element, type); | |
| 808 } | |
| 809 | |
| 810 class _DOMWindowCrossFrame extends NativeFieldWrapperClass2 implements | |
| 811 WindowBase { | |
| 812 _DOMWindowCrossFrame.internal(); | |
| 813 | |
| 814 // Fields. | |
| 815 HistoryBase get history => _blink.Blink_DOMWindowCrossFrame.get_history(this); | |
| 816 LocationBase get location => _blink.Blink_DOMWindowCrossFrame.get_location(thi
s); | |
| 817 bool get closed => _blink.Blink_DOMWindowCrossFrame.get_closed(this); | |
| 818 WindowBase get opener => _blink.Blink_DOMWindowCrossFrame.get_opener(this); | |
| 819 WindowBase get parent => _blink.Blink_DOMWindowCrossFrame.get_parent(this); | |
| 820 WindowBase get top => _blink.Blink_DOMWindowCrossFrame.get_top(this); | |
| 821 | |
| 822 // Methods. | |
| 823 void close() => _blink.Blink_DOMWindowCrossFrame.close(this); | |
| 824 void postMessage(/*SerializedScriptValue*/ message, String targetOrigin, [List
messagePorts]) => | |
| 825 _blink.Blink_DOMWindowCrossFrame.postMessage(this, message, targetOrigin, me
ssagePorts); | |
| 826 | |
| 827 // Implementation support. | |
| 828 String get typeName => "Window"; | |
| 829 | |
| 830 // TODO(efortuna): Remove this method. dartbug.com/16814 | |
| 831 Events get on => throw new UnsupportedError( | |
| 832 'You can only attach EventListeners to your own window.'); | |
| 833 // TODO(efortuna): Remove this method. dartbug.com/16814 | |
| 834 void _addEventListener([String type, EventListener listener, bool useCapture]) | |
| 835 => throw new UnsupportedError( | |
| 836 'You can only attach EventListeners to your own window.'); | |
| 837 // TODO(efortuna): Remove this method. dartbug.com/16814 | |
| 838 void addEventListener(String type, EventListener listener, [bool useCapture]) | |
| 839 => throw new UnsupportedError( | |
| 840 'You can only attach EventListeners to your own window.'); | |
| 841 // TODO(efortuna): Remove this method. dartbug.com/16814 | |
| 842 bool dispatchEvent(Event event) => throw new UnsupportedError( | |
| 843 'You can only attach EventListeners to your own window.'); | |
| 844 // TODO(efortuna): Remove this method. dartbug.com/16814 | |
| 845 void _removeEventListener([String type, EventListener listener, | |
| 846 bool useCapture]) => throw new UnsupportedError( | |
| 847 'You can only attach EventListeners to your own window.'); | |
| 848 // TODO(efortuna): Remove this method. dartbug.com/16814 | |
| 849 void removeEventListener(String type, EventListener listener, | |
| 850 [bool useCapture]) => throw new UnsupportedError( | |
| 851 'You can only attach EventListeners to your own window.'); | |
| 852 } | |
| 853 | |
| 854 class _HistoryCrossFrame extends NativeFieldWrapperClass2 implements HistoryBase
{ | |
| 855 _HistoryCrossFrame.internal(); | |
| 856 | |
| 857 // Methods. | |
| 858 void back() => _blink.Blink_HistoryCrossFrame.back(this); | |
| 859 void forward() => _blink.Blink_HistoryCrossFrame.forward(this); | |
| 860 void go(int distance) => _blink.Blink_HistoryCrossFrame.go(this, distance); | |
| 861 | |
| 862 // Implementation support. | |
| 863 String get typeName => "History"; | |
| 864 } | |
| 865 | |
| 866 class _LocationCrossFrame extends NativeFieldWrapperClass2 implements LocationBa
se { | |
| 867 _LocationCrossFrame.internal(); | |
| 868 | |
| 869 // Fields. | |
| 870 void set href(String h) => _blink.Blink_LocationCrossFrame.set_href(this, h); | |
| 871 | |
| 872 // Implementation support. | |
| 873 String get typeName => "Location"; | |
| 874 } | |
| 875 | |
| 876 class _DOMStringMap extends NativeFieldWrapperClass2 implements Map<String, Stri
ng> { | |
| 877 _DOMStringMap.internal(); | |
| 878 | |
| 879 bool containsValue(String value) => Maps.containsValue(this, value); | |
| 880 bool containsKey(String key) => _blink.Blink_DOMStringMap.containsKey(this, ke
y); | |
| 881 String operator [](String key) => _blink.Blink_DOMStringMap.item(this, key); | |
| 882 void operator []=(String key, String value) => _blink.Blink_DOMStringMap.setIt
em(this, key, value); | |
| 883 String putIfAbsent(String key, String ifAbsent()) => Maps.putIfAbsent(this, ke
y, ifAbsent); | |
| 884 String remove(String key) => _blink.Blink_DOMStringMap.remove(this, key); | |
| 885 void clear() => Maps.clear(this); | |
| 886 void forEach(void f(String key, String value)) => Maps.forEach(this, f); | |
| 887 Iterable<String> get keys => _blink.Blink_DOMStringMap.get_keys(this); | |
| 888 Iterable<String> get values => Maps.getValues(this); | |
| 889 int get length => Maps.length(this); | |
| 890 bool get isEmpty => Maps.isEmpty(this); | |
| 891 bool get isNotEmpty => Maps.isNotEmpty(this); | |
| 892 void addAll(Map<String, String> other) { | |
| 893 other.forEach((key, value) => this[key] = value); | |
| 894 } | |
| 895 } | |
| 896 | |
| 897 final _printClosure = (s) => window.console.log(s); | |
| 898 final _pureIsolatePrintClosure = (s) { | |
| 899 throw new UnimplementedError("Printing from a background isolate " | |
| 900 "is not supported in the browser"); | |
| 901 }; | |
| 902 | |
| 903 final _forwardingPrintClosure = _Utils.forwardingPrint; | |
| 904 | |
| 905 final _uriBaseClosure = () => Uri.parse(window.location.href); | |
| 906 | |
| 907 final _pureIsolateUriBaseClosure = () { | |
| 908 throw new UnimplementedError("Uri.base on a background isolate " | |
| 909 "is not supported in the browser"); | |
| 910 }; | |
| 911 | |
| 912 class _Timer implements Timer { | |
| 913 static const int _STATE_TIMEOUT = 0; | |
| 914 static const int _STATE_INTERVAL = 1; | |
| 915 int _state; | |
| 916 | |
| 917 _Timer(int milliSeconds, void callback(Timer timer), bool repeating) { | |
| 918 if (repeating) { | |
| 919 _state = (window._setInterval(() { | |
| 920 callback(this); | |
| 921 }, milliSeconds) << 1) | _STATE_INTERVAL; | |
| 922 } else { | |
| 923 _state = (window._setTimeout(() { | |
| 924 _state = null; | |
| 925 callback(this); | |
| 926 }, milliSeconds) << 1) | _STATE_TIMEOUT; | |
| 927 } | |
| 928 } | |
| 929 | |
| 930 void cancel() { | |
| 931 if (_state == null) return; | |
| 932 int id = _state >> 1; | |
| 933 if ((_state & 1) == _STATE_TIMEOUT) { | |
| 934 window._clearTimeout(id); | |
| 935 } else { | |
| 936 window._clearInterval(id); | |
| 937 } | |
| 938 _state = null; | |
| 939 } | |
| 940 | |
| 941 bool get isActive => _state != null; | |
| 942 } | |
| 943 | |
| 944 get _timerFactoryClosure => | |
| 945 (int milliSeconds, void callback(Timer timer), bool repeating) { | |
| 946 return new _Timer(milliSeconds, callback, repeating); | |
| 947 }; | |
| 948 | |
| 949 get _pureIsolateTimerFactoryClosure => | |
| 950 ((int milliSeconds, void callback(Timer time), bool repeating) => | |
| 951 throw new UnimplementedError("Timers on background isolates " | |
| 952 "are not supported in the browser")); | |
| 953 | |
| 954 class _ScheduleImmediateHelper { | |
| 955 MutationObserver _observer; | |
| 956 final DivElement _div = new DivElement(); | |
| 957 Function _callback; | |
| 958 | |
| 959 _ScheduleImmediateHelper() { | |
| 960 // Run in the root-zone as the DOM callback would otherwise execute in the | |
| 961 // current zone. | |
| 962 Zone.ROOT.run(() { | |
| 963 // Mutation events get fired as soon as the current event stack is unwound | |
| 964 // so we just make a dummy event and listen for that. | |
| 965 _observer = new MutationObserver(_handleMutation); | |
| 966 _observer.observe(_div, attributes: true); | |
| 967 }); | |
| 968 } | |
| 969 | |
| 970 void _schedule(callback) { | |
| 971 if (_callback != null) { | |
| 972 throw new StateError( | |
| 973 'Only one immediate callback can be scheduled at once'); | |
| 974 } | |
| 975 _callback = callback; | |
| 976 // Toggle it to trigger the mutation event. | |
| 977 _div.hidden = !_div.hidden; | |
| 978 } | |
| 979 | |
| 980 _handleMutation(List<MutationRecord> mutations, MutationObserver observer) { | |
| 981 var tmp = _callback; | |
| 982 _callback = null; | |
| 983 tmp(); | |
| 984 } | |
| 985 } | |
| 986 | |
| 987 final _ScheduleImmediateHelper _scheduleImmediateHelper = | |
| 988 new _ScheduleImmediateHelper(); | |
| 989 | |
| 990 get _scheduleImmediateClosure => (void callback()) { | |
| 991 _scheduleImmediateHelper._schedule(callback); | |
| 992 }; | |
| 993 | |
| 994 get _pureIsolateScheduleImmediateClosure => ((void callback()) => | |
| 995 throw new UnimplementedError("scheduleMicrotask in background isolates " | |
| 996 "are not supported in the browser")); | |
| 997 | |
| 998 void _initializeCustomElement(Element e) { | |
| 999 _Utils.initializeCustomElement(e); | |
| 1000 } | |
| 1001 | |
| 1002 // Class for unsupported native browser 'DOM' objects. | |
| 1003 class _UnsupportedBrowserObject extends NativeFieldWrapperClass2 { | |
| 1004 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 680913006:
Stop generating dart:blink from dart scripts (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart