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| 1 // Copyright (c) 2015, 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 /// Data collected by the dump-info task. | |
| 6 library compiler.src.lib.info; | |
| 7 | |
| 8 // Note: this file intentionally doesn't import anything from the compiler. That | |
| 9 // should make it easier for tools to depend on this library. The idea is that | |
| 10 // by using this library, tools can consume the information in the same way it | |
| 11 // is produced by the compiler. | |
| 12 // TODO(sigmund): make this a proper public API (export this explicitly at the | |
| 13 // lib folder level.) | |
| 14 | |
| 15 /// Common interface to many pieces of information generated by the compiler. | |
| 16 abstract class Info { | |
| 17 /// An identifier for the kind of information. | |
| 18 InfoKind get kind; | |
| 19 | |
| 20 /// Name of the element associated with this info. | |
| 21 String name; | |
| 22 | |
| 23 /// An id to uniquely identify this info among infos of the same [kind]. | |
| 24 int get id; | |
| 25 | |
| 26 /// A globally unique id combining [kind] and [id] together. | |
| 27 String get serializedId; | |
| 28 | |
| 29 /// Id used by the compiler when instrumenting code for code coverage. | |
| 30 // TODO(sigmund): It would be nice if we could use the same id for | |
| 31 // serialization and for coverage. Could we unify them? | |
| 32 String coverageId; | |
| 33 | |
| 34 /// Bytes used in the generated code for the corresponding element. | |
| 35 int size; | |
| 36 | |
| 37 /// Info of the enclosing element. | |
| 38 Info parent; | |
| 39 | |
| 40 /// Serializes the information into a JSON format. | |
| 41 // TODO(sigmund): refactor and put toJson outside the class, so we can have 2 | |
| 42 // different serializer/deserializers at once. | |
| 43 Map toJson(); | |
| 44 | |
| 45 void accept(InfoVisitor visitor); | |
| 46 } | |
| 47 | |
| 48 /// Common information used for most kind of elements. | |
| 49 // TODO(sigmund): add more: | |
| 50 // - inputSize: bytes used in the Dart source program | |
| 51 abstract class BasicInfo implements Info { | |
| 52 final InfoKind kind; | |
| 53 final int id; | |
| 54 String coverageId; | |
| 55 int size; | |
| 56 Info parent; | |
| 57 | |
| 58 String get serializedId => '${_kindToString(kind)}/$id'; | |
| 59 | |
| 60 String name; | |
| 61 | |
| 62 /// If using deferred libraries, where the element associated with this info | |
| 63 /// is generated. | |
| 64 OutputUnitInfo outputUnit; | |
| 65 | |
| 66 BasicInfo(this.kind, this.id, this.name, this.outputUnit, this.size, | |
| 67 this.coverageId); | |
| 68 | |
| 69 BasicInfo._fromId(String serializedId) | |
| 70 : kind = _kindFromSerializedId(serializedId), | |
| 71 id = _idFromSerializedId(serializedId); | |
| 72 | |
| 73 Map toJson() { | |
| 74 var res = { | |
| 75 'id': serializedId, | |
| 76 'kind': _kindToString(kind), | |
| 77 'name': name, | |
| 78 'size': size, | |
| 79 }; | |
| 80 // TODO(sigmund): Omit this also when outputUnit.id == 0 (most code is in | |
| 81 // the main output unit by default). | |
| 82 if (outputUnit != null) res['outputUnit'] = outputUnit.serializedId; | |
| 83 if (coverageId != null) res['coverageId'] = coverageId; | |
| 84 if (parent != null) res['parent'] = parent.serializedId; | |
| 85 return res; | |
| 86 } | |
| 87 | |
| 88 String toString() => '$serializedId $name [$size]'; | |
| 89 } | |
| 90 | |
| 91 /// Info associated with elements containing executable code (like fields and | |
| 92 /// methods) | |
| 93 abstract class CodeInfo implements Info { | |
| 94 /// How does this function or field depend on others. | |
| 95 final List<DependencyInfo> uses = <DependencyInfo>[]; | |
| 96 } | |
| 97 | |
| 98 | |
| 99 /// The entire information produced while compiling a program. | |
| 100 class AllInfo { | |
| 101 /// Summary information about the program. | |
| 102 ProgramInfo program; | |
| 103 | |
| 104 /// Information about each library processed by the compiler. | |
| 105 List<LibraryInfo> libraries = <LibraryInfo>[]; | |
| 106 | |
| 107 /// Information about each function (includes methods and getters in any | |
| 108 /// library) | |
| 109 List<FunctionInfo> functions = <FunctionInfo>[]; | |
| 110 | |
| 111 /// Information about type defs in the program. | |
| 112 List<TypedefInfo> typedefs = <TypedefInfo>[]; | |
| 113 | |
| 114 /// Information about each class (in any library). | |
| 115 List<ClassInfo> classes = <ClassInfo>[]; | |
| 116 | |
| 117 /// Information about fields (in any class). | |
| 118 List<FieldInfo> fields = <FieldInfo>[]; | |
| 119 | |
| 120 /// Information about output units (should be just one entry if not using | |
| 121 /// deferred loading). | |
| 122 List<OutputUnitInfo> outputUnits = <OutputUnitInfo>[]; | |
| 123 | |
| 124 /// Details about all deferred imports and what files would be loaded when the | |
| 125 /// import is resolved. | |
| 126 // TODO(sigmund): use a different format for dump-info. This currently emits | |
| 127 // the same map that is created for the `--deferred-map` flag. | |
| 128 Map<String, Map<String, dynamic>> deferredFiles; | |
| 129 | |
| 130 /// A new representation of dependencies form one info to another. An entry in | |
| 131 /// this map indicates that an Info depends on another (e.g. a function | |
| 132 /// invokes another). Please note that the data in this field might not be | |
| 133 /// accurate yet (this is work in progress). | |
| 134 Map<Info, List<Info>> dependencies = {}; | |
| 135 | |
| 136 /// Major version indicating breaking changes in the format. A new version | |
| 137 /// means that an old deserialization algorithm will not work with the new | |
| 138 /// format. | |
| 139 final int version = 3; | |
| 140 | |
| 141 /// Minor version indicating non-breaking changes in the format. A change in | |
| 142 /// this version number means that the json parsing in this library from a | |
| 143 /// previous will continue to work after the change. This is typically | |
| 144 /// increased when adding new entries to the file format. | |
| 145 // Note: the dump-info.viewer app was written using a json parser version 3.2. | |
| 146 final int minorVersion = 5; | |
| 147 | |
| 148 AllInfo(); | |
| 149 | |
| 150 static AllInfo parseFromJson(Map map) => new _ParseHelper().parseAll(map); | |
| 151 | |
| 152 Map _listAsJsonMap(List<Info> list) { | |
| 153 var map = <String, Map>{}; | |
| 154 for (var info in list) { | |
| 155 map['${info.id}'] = info.toJson(); | |
| 156 } | |
| 157 return map; | |
| 158 } | |
| 159 | |
| 160 Map _extractHoldingInfo() { | |
| 161 var map = <String, List>{}; | |
| 162 void helper(CodeInfo info) { | |
| 163 if (info.uses.isEmpty) return; | |
| 164 map[info.serializedId] = info.uses.map((u) => u.toJson()).toList(); | |
| 165 } | |
| 166 functions.forEach(helper); | |
| 167 fields.forEach(helper); | |
| 168 return map; | |
| 169 } | |
| 170 | |
| 171 Map _extractDependencies() { | |
| 172 var map = <String, List>{}; | |
| 173 dependencies.forEach((k, v) { | |
| 174 map[k.serializedId] = v.map((i) => i.serializedId).toList(); | |
| 175 }); | |
| 176 return map; | |
| 177 } | |
| 178 | |
| 179 Map toJson() => { | |
| 180 'elements': { | |
| 181 'library': _listAsJsonMap(libraries), | |
| 182 'class': _listAsJsonMap(classes), | |
| 183 'function': _listAsJsonMap(functions), | |
| 184 'typedef': _listAsJsonMap(typedefs), | |
| 185 'field': _listAsJsonMap(fields), | |
| 186 }, | |
| 187 'holding': _extractHoldingInfo(), | |
| 188 'dependencies': _extractDependencies(), | |
| 189 'outputUnits': outputUnits.map((u) => u.toJson()).toList(), | |
| 190 'dump_version': version, | |
| 191 'deferredFiles': deferredFiles, | |
| 192 'dump_minor_version': '$minorVersion', | |
| 193 // TODO(sigmund): change viewer to accept an int? | |
| 194 'program': program.toJson(), | |
| 195 }; | |
| 196 | |
| 197 void accept(InfoVisitor visitor) => visitor.visitAll(this); | |
| 198 } | |
| 199 | |
| 200 class ProgramInfo { | |
| 201 int size; | |
| 202 String dart2jsVersion; | |
| 203 DateTime compilationMoment; | |
| 204 Duration compilationDuration; | |
| 205 // TODO(sigmund): use Duration. | |
| 206 int toJsonDuration; | |
| 207 int dumpInfoDuration; | |
| 208 bool noSuchMethodEnabled; | |
| 209 bool minified; | |
| 210 | |
| 211 ProgramInfo( | |
| 212 {this.size, | |
| 213 this.dart2jsVersion, | |
| 214 this.compilationMoment, | |
| 215 this.compilationDuration, | |
| 216 this.toJsonDuration, | |
| 217 this.dumpInfoDuration, | |
| 218 this.noSuchMethodEnabled, | |
| 219 this.minified}); | |
| 220 | |
| 221 Map toJson() => { | |
| 222 'size': size, | |
| 223 'dart2jsVersion': dart2jsVersion, | |
| 224 'compilationMoment': '$compilationMoment', | |
| 225 'compilationDuration': '${compilationDuration}', | |
| 226 'toJsonDuration': toJsonDuration, | |
| 227 'dumpInfoDuration': '$dumpInfoDuration', | |
| 228 'noSuchMethodEnabled': noSuchMethodEnabled, | |
| 229 'minified': minified, | |
| 230 }; | |
| 231 | |
| 232 void accept(InfoVisitor visitor) => visitor.visitProgram(this); | |
| 233 } | |
| 234 | |
| 235 // TODO(sigmund): add unit tests. | |
| 236 class _ParseHelper { | |
| 237 Map<String, Info> registry = {}; | |
| 238 | |
| 239 AllInfo parseAll(Map json) { | |
| 240 var result = new AllInfo(); | |
| 241 var elements = json['elements']; | |
| 242 result.libraries.addAll(elements['library'].values.map(parseLibrary)); | |
| 243 result.classes.addAll(elements['class'].values.map(parseClass)); | |
| 244 result.functions.addAll(elements['function'].values.map(parseFunction)); | |
| 245 result.fields.addAll(elements['field'].values.map(parseField)); | |
| 246 result.typedefs.addAll(elements['typedef'].values.map(parseTypedef)); | |
| 247 | |
| 248 var idMap = {}; | |
| 249 for (var f in result.functions) { | |
| 250 idMap[f.serializedId] = f; | |
| 251 } | |
| 252 for (var f in result.fields) { | |
| 253 idMap[f.serializedId] = f; | |
| 254 } | |
| 255 | |
| 256 json['holding'].forEach((k, deps) { | |
| 257 var src = idMap[k]; | |
| 258 assert (src != null); | |
| 259 for (var dep in deps) { | |
| 260 var target = idMap[dep['id']]; | |
| 261 assert (target != null); | |
| 262 src.uses.add(new DependencyInfo(target, dep['mask'])); | |
| 263 } | |
| 264 }); | |
| 265 | |
| 266 json['dependencies']?.forEach((k, deps) { | |
| 267 result.dependencies[idMap[k]] = deps.map((d) => idMap[d]).toList(); | |
| 268 }); | |
| 269 | |
| 270 result.program = parseProgram(json['program']); | |
| 271 // todo: version, etc | |
| 272 return result; | |
| 273 } | |
| 274 | |
| 275 LibraryInfo parseLibrary(Map json) { | |
| 276 LibraryInfo result = parseId(json['id']); | |
| 277 result..name = json['name'] | |
| 278 ..uri = Uri.parse(json['canonicalUri']) | |
| 279 ..outputUnit = parseId(json['outputUnit']) | |
| 280 ..size = json['size']; | |
| 281 for (var child in json['children'].map(parseId)) { | |
| 282 if (child is FunctionInfo) { | |
| 283 result.topLevelFunctions.add(child); | |
| 284 } else if (child is FieldInfo) { | |
| 285 result.topLevelVariables.add(child); | |
| 286 } else if (child is ClassInfo) { | |
| 287 result.classes.add(child); | |
| 288 } else { | |
| 289 assert(child is TypedefInfo); | |
| 290 result.typedefs.add(child); | |
| 291 } | |
| 292 } | |
| 293 return result; | |
| 294 } | |
| 295 | |
| 296 ClassInfo parseClass(Map json) { | |
| 297 ClassInfo result = parseId(json['id']); | |
| 298 result..name = json['name'] | |
| 299 ..parent = parseId(json['parent']) | |
| 300 ..outputUnit = parseId(json['outputUnit']) | |
| 301 ..size = json['size'] | |
| 302 ..isAbstract = json['modifiers']['abstract'] == true; | |
| 303 assert(result is ClassInfo); | |
| 304 for (var child in json['children'].map(parseId)) { | |
| 305 if (child is FunctionInfo) { | |
| 306 result.functions.add(child); | |
| 307 } else { | |
| 308 assert(child is FieldInfo); | |
| 309 result.fields.add(child); | |
| 310 } | |
| 311 } | |
| 312 return result; | |
| 313 } | |
| 314 | |
| 315 FieldInfo parseField(Map json) { | |
| 316 FieldInfo result = parseId(json['id']); | |
| 317 return result..name = json['name'] | |
| 318 ..parent = parseId(json['parent']) | |
| 319 ..coverageId = json['coverageId'] | |
| 320 ..outputUnit = parseId(json['outputUnit']) | |
| 321 ..size = json['size'] | |
| 322 ..type = json['type'] | |
| 323 ..inferredType = json['inferredType'] | |
| 324 ..code = json['code'] | |
| 325 ..closures = json['children'].map(parseId).toList(); | |
| 326 } | |
| 327 | |
| 328 TypedefInfo parseTypedef(Map json) { | |
| 329 TypedefInfo result = parseId(json['id']); | |
| 330 return result..name = json['name'] | |
| 331 ..parent = parseId(json['parent']) | |
| 332 ..type = json['type'] | |
| 333 ..size = 0; | |
| 334 } | |
| 335 | |
| 336 ProgramInfo parseProgram(Map json) => | |
| 337 new ProgramInfo()..size = json['size']; | |
| 338 | |
| 339 FunctionInfo parseFunction(Map json) { | |
| 340 FunctionInfo result = parseId(json['id']); | |
| 341 return result..name = json['name'] | |
| 342 ..parent = parseId(json['parent']) | |
| 343 ..coverageId = json['coverageId'] | |
| 344 ..outputUnit = parseId(json['outputUnit']) | |
| 345 ..size = json['size'] | |
| 346 ..type = json['type'] | |
| 347 ..returnType = json['returnType'] | |
| 348 ..inferredReturnType = json['inferredReturnType'] | |
| 349 ..parameters = json['parameters'].map(parseParameter).toList() | |
| 350 ..code = json['code'] | |
| 351 ..sideEffects = json['sideEffects'] | |
| 352 ..modifiers = parseModifiers(json['modifiers']) | |
| 353 ..closures = json['children'].map(parseId).toList(); | |
| 354 } | |
| 355 | |
| 356 ParameterInfo parseParameter(Map json) => | |
| 357 new ParameterInfo(json['name'], json['type'], json['declaredType']); | |
| 358 | |
| 359 FunctionModifiers parseModifiers(Map<String, bool> json) { | |
| 360 return new FunctionModifiers( | |
| 361 isStatic: json['static'] == true, | |
| 362 isConst: json['const'] == true, | |
| 363 isFactory: json['factory'] == true, | |
| 364 isExternal: json['external'] == true); | |
| 365 } | |
| 366 | |
| 367 Info parseId(String serializedId) => registry.putIfAbsent(serializedId, () { | |
| 368 if (serializedId == null) { | |
| 369 return null; | |
| 370 } else if (serializedId.startsWith('function/')) { | |
| 371 return new FunctionInfo._(serializedId); | |
| 372 } else if (serializedId.startsWith('library/')) { | |
| 373 return new LibraryInfo._(serializedId); | |
| 374 } else if (serializedId.startsWith('class/')) { | |
| 375 return new ClassInfo._(serializedId); | |
| 376 } else if (serializedId.startsWith('field/')) { | |
| 377 return new FieldInfo._(serializedId); | |
| 378 } else if (serializedId.startsWith('typedef/')) { | |
| 379 return new TypedefInfo._(serializedId); | |
| 380 } else if (serializedId.startsWith('outputUnit/')) { | |
| 381 return new OutputUnitInfo._(serializedId); | |
| 382 } | |
| 383 assert(false); | |
| 384 }); | |
| 385 } | |
| 386 | |
| 387 /// Info associated with a library element. | |
| 388 class LibraryInfo extends BasicInfo { | |
| 389 /// Canonical uri that identifies the library. | |
| 390 Uri uri; | |
| 391 | |
| 392 /// Top level functions defined within the library. | |
| 393 final List<FunctionInfo> topLevelFunctions = <FunctionInfo>[]; | |
| 394 | |
| 395 /// Top level fields defined within the library. | |
| 396 final List<FieldInfo> topLevelVariables = <FieldInfo>[]; | |
| 397 | |
| 398 /// Classes defined within the library. | |
| 399 final List<ClassInfo> classes = <ClassInfo>[]; | |
| 400 | |
| 401 /// Typedefs defined within the library. | |
| 402 final List<TypedefInfo> typedefs = <TypedefInfo>[]; | |
| 403 | |
| 404 static int _id = 0; | |
| 405 | |
| 406 /// Whether there is any information recorded for this library. | |
| 407 bool get isEmpty => | |
| 408 topLevelFunctions.isEmpty && topLevelVariables.isEmpty && classes.isEmpty; | |
| 409 | |
| 410 LibraryInfo(String name, this.uri, OutputUnitInfo outputUnit, int size) | |
| 411 : super(InfoKind.library, _id++, name, outputUnit, size, null); | |
| 412 | |
| 413 LibraryInfo._(String serializedId) : super._fromId(serializedId); | |
| 414 | |
| 415 Map toJson() => super.toJson() | |
| 416 ..addAll({ | |
| 417 'children': [] | |
| 418 ..addAll(topLevelFunctions.map((f) => f.serializedId)) | |
| 419 ..addAll(topLevelVariables.map((v) => v.serializedId)) | |
| 420 ..addAll(classes.map((c) => c.serializedId)) | |
| 421 ..addAll(typedefs.map((t) => t.serializedId)), | |
| 422 'canonicalUri': '$uri', | |
| 423 }); | |
| 424 | |
| 425 void accept(InfoVisitor visitor) => visitor.visitLibrary(this); | |
| 426 } | |
| 427 | |
| 428 /// Information about an output unit. Normally there is just one for the entire | |
| 429 /// program unless the application uses deferred imports, in which case there | |
| 430 /// would be an additional output unit per deferred chunk. | |
| 431 class OutputUnitInfo extends BasicInfo { | |
| 432 static int _ids = 0; | |
| 433 OutputUnitInfo(String name, int size) | |
| 434 : super(InfoKind.outputUnit, _ids++, name, null, size, null); | |
| 435 | |
| 436 OutputUnitInfo._(String serializedId) : super._fromId(serializedId); | |
| 437 | |
| 438 void accept(InfoVisitor visitor) => visitor.visitOutput(this); | |
| 439 } | |
| 440 | |
| 441 /// Information about a class element. | |
| 442 class ClassInfo extends BasicInfo { | |
| 443 /// Whether the class is abstract. | |
| 444 bool isAbstract; | |
| 445 | |
| 446 // TODO(sigmund): split static vs instance vs closures | |
| 447 /// Functions (static or instance) defined in the class. | |
| 448 final List<FunctionInfo> functions = <FunctionInfo>[]; | |
| 449 | |
| 450 /// Fields defined in the class. | |
| 451 // TODO(sigmund): currently appears to only be populated with instance fields, | |
| 452 // but this should be fixed. | |
| 453 final List<FieldInfo> fields = <FieldInfo>[]; | |
| 454 static int _ids = 0; | |
| 455 | |
| 456 ClassInfo( | |
| 457 {String name, this.isAbstract, OutputUnitInfo outputUnit, int size: 0}) | |
| 458 : super(InfoKind.clazz, _ids++, name, outputUnit, size, null); | |
| 459 | |
| 460 ClassInfo._(String serializedId) : super._fromId(serializedId); | |
| 461 | |
| 462 Map toJson() => super.toJson() | |
| 463 ..addAll({ | |
| 464 // TODO(sigmund): change format, include only when abstract is true. | |
| 465 'modifiers': {'abstract': isAbstract}, | |
| 466 'children': [] | |
| 467 ..addAll(fields.map((f) => f.serializedId)) | |
| 468 ..addAll(functions.map((m) => m.serializedId)) | |
| 469 }); | |
| 470 | |
| 471 void accept(InfoVisitor visitor) => visitor.visitClass(this); | |
| 472 } | |
| 473 | |
| 474 /// Information about a field element. | |
| 475 class FieldInfo extends BasicInfo with CodeInfo { | |
| 476 /// The type of the field. | |
| 477 String type; | |
| 478 | |
| 479 /// The type inferred by dart2js's whole program analysis | |
| 480 String inferredType; | |
| 481 | |
| 482 /// Nested closures seen in the field initializer. | |
| 483 List<FunctionInfo> closures; | |
| 484 | |
| 485 /// The actual generated code for the field. | |
| 486 String code; | |
| 487 | |
| 488 static int _ids = 0; | |
| 489 FieldInfo( | |
| 490 {String name, | |
| 491 String coverageId, | |
| 492 int size: 0, | |
| 493 this.type, | |
| 494 this.inferredType, | |
| 495 this.closures, | |
| 496 this.code, | |
| 497 OutputUnitInfo outputUnit}) | |
| 498 : super(InfoKind.field, _ids++, name, outputUnit, size, coverageId); | |
| 499 | |
| 500 FieldInfo._(String serializedId) : super._fromId(serializedId); | |
| 501 | |
| 502 Map toJson() => super.toJson() | |
| 503 ..addAll({ | |
| 504 'children': closures.map((i) => i.serializedId).toList(), | |
| 505 'inferredType': inferredType, | |
| 506 'code': code, | |
| 507 'type': type, | |
| 508 }); | |
| 509 | |
| 510 void accept(InfoVisitor visitor) => visitor.visitField(this); | |
| 511 } | |
| 512 | |
| 513 /// Information about a typedef declaration. | |
| 514 class TypedefInfo extends BasicInfo { | |
| 515 /// The declared type. | |
| 516 String type; | |
| 517 | |
| 518 static int _ids = 0; | |
| 519 TypedefInfo(String name, this.type, OutputUnitInfo outputUnit) | |
| 520 : super(InfoKind.typedef, _ids++, name, outputUnit, 0, null); | |
| 521 | |
| 522 TypedefInfo._(String serializedId) : super._fromId(serializedId); | |
| 523 | |
| 524 Map toJson() => super.toJson()..['type'] = '$type'; | |
| 525 | |
| 526 void accept(InfoVisitor visitor) => visitor.visitTypedef(this); | |
| 527 } | |
| 528 | |
| 529 /// Information about a function or method. | |
| 530 class FunctionInfo extends BasicInfo with CodeInfo { | |
| 531 static const int TOP_LEVEL_FUNCTION_KIND = 0; | |
| 532 static const int CLOSURE_FUNCTION_KIND = 1; | |
| 533 static const int METHOD_FUNCTION_KIND = 2; | |
| 534 static const int CONSTRUCTOR_FUNCTION_KIND = 3; | |
| 535 static int _ids = 0; | |
| 536 | |
| 537 /// Kind of function (top-level function, closure, method, or constructor). | |
| 538 int functionKind; | |
| 539 | |
| 540 /// Modifiers applied to this function. | |
| 541 FunctionModifiers modifiers; | |
| 542 | |
| 543 /// Nested closures that appear within the body of this function. | |
| 544 List<FunctionInfo> closures; | |
| 545 | |
| 546 /// The type of this function. | |
| 547 String type; | |
| 548 | |
| 549 /// The declared return type. | |
| 550 String returnType; | |
| 551 | |
| 552 /// The inferred return type. | |
| 553 String inferredReturnType; | |
| 554 | |
| 555 /// Name and type information for each parameter. | |
| 556 List<ParameterInfo> parameters; | |
| 557 | |
| 558 /// Side-effects. | |
| 559 // TODO(sigmund): serialize more precisely, not just a string representation. | |
| 560 String sideEffects; | |
| 561 | |
| 562 /// How many function calls were inlined into this function. | |
| 563 int inlinedCount; | |
| 564 | |
| 565 /// The actual generated code. | |
| 566 String code; | |
| 567 | |
| 568 FunctionInfo( | |
| 569 {String name, | |
| 570 String coverageId, | |
| 571 OutputUnitInfo outputUnit, | |
| 572 int size: 0, | |
| 573 this.functionKind, | |
| 574 this.modifiers, | |
| 575 this.closures, | |
| 576 this.type, | |
| 577 this.returnType, | |
| 578 this.inferredReturnType, | |
| 579 this.parameters, | |
| 580 this.sideEffects, | |
| 581 this.inlinedCount, | |
| 582 this.code}) | |
| 583 : super(InfoKind.function, _ids++, name, outputUnit, size, coverageId); | |
| 584 | |
| 585 FunctionInfo._(String serializedId) : super._fromId(serializedId); | |
| 586 | |
| 587 Map toJson() => super.toJson() | |
| 588 ..addAll({ | |
| 589 'children': closures.map((i) => i.serializedId).toList(), | |
| 590 'modifiers': modifiers.toJson(), | |
| 591 'returnType': returnType, | |
| 592 'inferredReturnType': inferredReturnType, | |
| 593 'parameters': parameters.map((p) => p.toJson()).toList(), | |
| 594 'sideEffects': sideEffects, | |
| 595 'inlinedCount': inlinedCount, | |
| 596 'code': code, | |
| 597 'type': type, | |
| 598 // Note: version 3.2 of dump-info serializes `uses` in a section called | |
| 599 // `holding` at the top-level. | |
| 600 }); | |
| 601 | |
| 602 void accept(InfoVisitor visitor) => visitor.visitFunction(this); | |
| 603 } | |
| 604 | |
| 605 /// Information about how a dependency is used. | |
| 606 class DependencyInfo { | |
| 607 /// The dependency, either a FunctionInfo or FieldInfo. | |
| 608 final Info target; | |
| 609 | |
| 610 /// Either a selector mask indicating how this is used, or 'inlined'. | |
| 611 // TODO(sigmund): split mask into an enum or something more precise to really | |
| 612 // describe the dependencies in detail. | |
| 613 final String mask; | |
| 614 | |
| 615 DependencyInfo(this.target, this.mask); | |
| 616 | |
| 617 Map toJson() => {'id': target.serializedId, 'mask': mask}; | |
| 618 } | |
| 619 | |
| 620 /// Name and type information about a function parameter. | |
| 621 class ParameterInfo { | |
| 622 final String name; | |
| 623 final String type; | |
| 624 final String declaredType; | |
| 625 | |
| 626 ParameterInfo(this.name, this.type, this.declaredType); | |
| 627 | |
| 628 Map toJson() => {'name': name, 'type': type, 'declaredType': declaredType}; | |
| 629 } | |
| 630 | |
| 631 /// Modifiers that may apply to methods. | |
| 632 class FunctionModifiers { | |
| 633 final bool isStatic; | |
| 634 final bool isConst; | |
| 635 final bool isFactory; | |
| 636 final bool isExternal; | |
| 637 | |
| 638 FunctionModifiers( | |
| 639 {this.isStatic: false, | |
| 640 this.isConst: false, | |
| 641 this.isFactory: false, | |
| 642 this.isExternal: false}); | |
| 643 | |
| 644 // TODO(sigmund): exclude false values (requires bumping the format version): | |
| 645 // Map toJson() { | |
| 646 // var res = <String, bool>{}; | |
| 647 // if (isStatic) res['static'] = true; | |
| 648 // if (isConst) res['const'] = true; | |
| 649 // if (isFactory) res['factory'] = true; | |
| 650 // if (isExternal) res['external'] = true; | |
| 651 // return res; | |
| 652 // } | |
| 653 Map toJson() => { | |
| 654 'static': isStatic, | |
| 655 'const': isConst, | |
| 656 'factory': isFactory, | |
| 657 'external': isExternal, | |
| 658 }; | |
| 659 } | |
| 660 | |
| 661 /// Possible values of the `kind` field in the serialied infos. | |
| 662 enum InfoKind { | |
| 663 library, | |
| 664 clazz, | |
| 665 function, | |
| 666 field, | |
| 667 outputUnit, | |
| 668 typedef, | |
| 669 } | |
| 670 | |
| 671 String _kindToString(InfoKind kind) { | |
| 672 switch(kind) { | |
| 673 case InfoKind.library: return 'library'; | |
| 674 case InfoKind.clazz: return 'class'; | |
| 675 case InfoKind.function: return 'function'; | |
| 676 case InfoKind.field: return 'field'; | |
| 677 case InfoKind.outputUnit: return 'outputUnit'; | |
| 678 case InfoKind.typedef: return 'typedef'; | |
| 679 default: return null; | |
| 680 } | |
| 681 } | |
| 682 | |
| 683 int _idFromSerializedId(String serializedId) => | |
| 684 int.parse(serializedId.substring(serializedId.indexOf('/') + 1)); | |
| 685 | |
| 686 InfoKind _kindFromSerializedId(String serializedId) => | |
| 687 _kindFromString(serializedId.substring(0, serializedId.indexOf('/'))); | |
| 688 | |
| 689 InfoKind _kindFromString(String kind) { | |
| 690 switch(kind) { | |
| 691 case 'library': return InfoKind.library; | |
| 692 case 'class': return InfoKind.clazz; | |
| 693 case 'function': return InfoKind.function; | |
| 694 case 'field': return InfoKind.field; | |
| 695 case 'outputUnit': return InfoKind.outputUnit; | |
| 696 case 'typedef': return InfoKind.typedef; | |
| 697 default: return null; | |
| 698 } | |
| 699 } | |
| 700 | |
| 701 /// A simple visitor for information produced by the dart2js compiler. | |
| 702 class InfoVisitor { | |
| 703 visitAll(AllInfo info) {} | |
| 704 visitProgram(ProgramInfo info) {} | |
| 705 visitLibrary(LibraryInfo info) {} | |
| 706 visitClass(ClassInfo info) {} | |
| 707 visitField(FieldInfo info) {} | |
| 708 visitFunction(FunctionInfo info) {} | |
| 709 visitTypedef(TypedefInfo info) {} | |
| 710 visitOutput(OutputUnitInfo info) {} | |
| 711 } | |
| 712 | |
| 713 /// A visitor that recursively walks each portion of the program. Because the | |
| 714 /// info representation is redundant, this visitor only walks the structure of | |
| 715 /// the program and skips some redundant links. For example, even though | |
| 716 /// visitAll contains references to functions, this visitor only recurses to | |
| 717 /// visit libraries, then from each library we visit functions and classes, and | |
| 718 /// so on. | |
| 719 class RecursiveInfoVisitor extends InfoVisitor { | |
| 720 visitAll(AllInfo info) { | |
| 721 // Note: we don't visit functions, fields, classes, and typedefs because | |
| 722 // they are reachable from the library info. | |
| 723 info.libraries.forEach(visitLibrary); | |
| 724 } | |
| 725 | |
| 726 visitLibrary(LibraryInfo info) { | |
| 727 info.topLevelFunctions.forEach(visitFunction); | |
| 728 info.topLevelVariables.forEach(visitField); | |
| 729 info.classes.forEach(visitClass); | |
| 730 info.typedefs.forEach(visitTypedef); | |
| 731 } | |
| 732 | |
| 733 visitClass(ClassInfo info) { | |
| 734 info.functions.forEach(visitFunction); | |
| 735 info.fields.forEach(visitField); | |
| 736 } | |
| 737 | |
| 738 visitField(FieldInfo info) { | |
| 739 info.closures.forEach(visitFunction); | |
| 740 } | |
| 741 | |
| 742 visitFunction(FunctionInfo info) { | |
| 743 info.closures.forEach(visitFunction); | |
| 744 } | |
| 745 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1298553002:
dart2js: switch to use dart2js_info/info.dart (Closed)
Base URL: git@github.com:dart-lang/sdk.git@master