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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 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 | 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. | 3 // BSD-style license that can be found in the LICENSE file. |
4 library initialize.transformer; | 4 library initialize.transformer; |
5 | 5 |
6 import 'dart:async'; | 6 import 'dart:async'; |
7 import 'dart:collection' show Queue; | 7 import 'dart:collection' show Queue; |
8 import 'package:analyzer/src/generated/ast.dart'; | 8 import 'package:analyzer/src/generated/ast.dart'; |
9 import 'package:analyzer/src/generated/element.dart'; | 9 import 'package:analyzer/src/generated/element.dart'; |
10 import 'package:barback/barback.dart'; | 10 import 'package:barback/barback.dart'; |
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344 for (var interface in type.interfaces) { | 344 for (var interface in type.interfaces) { |
345 if (_isInitializer(interface)) return true; | 345 if (_isInitializer(interface)) return true; |
346 } | 346 } |
347 return false; | 347 return false; |
348 } | 348 } |
349 | 349 |
350 /// Retrieves all top-level methods that are visible if you were to import | 350 /// Retrieves all top-level methods that are visible if you were to import |
351 /// [lib]. This includes exported methods from other libraries too. | 351 /// [lib]. This includes exported methods from other libraries too. |
352 List<FunctionElement> _topLevelMethodsOfLibrary( | 352 List<FunctionElement> _topLevelMethodsOfLibrary( |
353 LibraryElement library, Set<LibraryElement> seen) { | 353 LibraryElement library, Set<LibraryElement> seen) { |
354 var result = []; | 354 var methods = []; |
355 result.addAll(library.units.expand((u) => u.functions)); | 355 |
356 for (var export in library.exports) { | 356 var orderedExports = new List.from(library.exports) |
| 357 ..sort((a, b) => a.uriOffset.compareTo(b.uriOffset)); |
| 358 for (var export in orderedExports) { |
357 if (seen.contains(export.exportedLibrary)) continue; | 359 if (seen.contains(export.exportedLibrary)) continue; |
358 var exported = _topLevelMethodsOfLibrary(export.exportedLibrary, seen); | 360 methods.addAll(_topLevelMethodsOfLibrary(export.exportedLibrary, seen)); |
359 _filter(exported, export.combinators); | |
360 result.addAll(exported); | |
361 } | 361 } |
362 result.sort((a, b) => a.name.compareTo(b.name)); | 362 |
363 return result; | 363 for (CompilationUnitElement unit in _orderedUnits(library)) { |
| 364 methods.addAll(new List.from(unit.functions) |
| 365 ..sort((a, b) => a.nameOffset.compareTo(b.nameOffset))); |
| 366 } |
| 367 |
| 368 return methods; |
364 } | 369 } |
365 | 370 |
366 /// Retrieves all classes that are visible if you were to import [lib]. This | 371 /// Retrieves all classes that are visible if you were to import [lib]. This |
367 /// includes exported classes from other libraries. | 372 /// includes exported classes from other libraries. |
368 List<ClassElement> _classesOfLibrary( | 373 List<ClassElement> _classesOfLibrary( |
369 LibraryElement library, Set<LibraryElement> seen) { | 374 LibraryElement library, Set<LibraryElement> seen) { |
370 var result = []; | 375 var classes = []; |
371 result.addAll(library.units.expand((u) => u.types)); | 376 |
372 for (var export in library.exports) { | 377 var orderedExports = new List.from(library.exports) |
| 378 ..sort((a, b) => a.uriOffset.compareTo(b.uriOffset)); |
| 379 for (var export in orderedExports) { |
373 if (seen.contains(export.exportedLibrary)) continue; | 380 if (seen.contains(export.exportedLibrary)) continue; |
374 var exported = _classesOfLibrary(export.exportedLibrary, seen); | 381 classes.addAll(_classesOfLibrary(export.exportedLibrary, seen)); |
375 _filter(exported, export.combinators); | |
376 result.addAll(exported); | |
377 } | 382 } |
378 result.sort((a, b) => a.name.compareTo(b.name)); | 383 |
379 return result; | 384 for (var unit in _orderedUnits(library)) { |
| 385 classes.addAll(new List.from(unit.types) |
| 386 ..sort((a, b) => a.nameOffset.compareTo(b.nameOffset))); |
| 387 } |
| 388 |
| 389 return classes; |
380 } | 390 } |
381 | 391 |
382 /// Filters [elements] that come from an export, according to its show/hide | 392 List<CompilationUnitElement> _orderedUnits(LibraryElement library) { |
383 /// combinators. This modifies [elements] in place. | 393 var definingUnit = library.definingCompilationUnit; |
384 void _filter(List<Element> elements, List<NamespaceCombinator> combinators) { | 394 // The first item is the source library, remove it for now. |
385 for (var c in combinators) { | 395 return new List.from(library.units) |
386 if (c is ShowElementCombinator) { | 396 ..sort((a, b) { |
387 var show = c.shownNames.toSet(); | 397 if (a == definingUnit) return 1; |
388 elements.retainWhere((e) => show.contains(e.displayName)); | 398 if (b == definingUnit) return -1; |
389 } else if (c is HideElementCombinator) { | 399 return a.uri.compareTo(b.uri); |
390 var hide = c.hiddenNames.toSet(); | 400 }); |
391 elements.removeWhere((e) => hide.contains(e.displayName)); | |
392 } | |
393 } | |
394 } | 401 } |
395 | 402 |
396 Iterable<LibraryElement> _sortedLibraryDependencies(LibraryElement library) { | 403 Iterable<LibraryElement> _sortedLibraryDependencies(LibraryElement library) { |
397 // TODO(jakemac): Investigate supporting annotations on part-of directives. | 404 // TODO(jakemac): Investigate supporting annotations on part-of directives. |
398 getLibrary(UriReferencedElement element) { | 405 getLibrary(UriReferencedElement element) { |
399 if (element is ImportElement) return element.importedLibrary; | 406 if (element is ImportElement) return element.importedLibrary; |
400 if (element is ExportElement) return element.exportedLibrary; | 407 if (element is ExportElement) return element.exportedLibrary; |
401 } | 408 } |
402 | 409 |
403 return (new List.from(library.imports) | 410 return (new List.from(library.imports) |
404 ..addAll(library.exports) | 411 ..addAll(library.exports) |
405 ..sort((a, b) { | 412 ..sort((a, b) => a.nameOffset.compareTo(b.nameOffset))).map(getLibrary); |
406 // dart: imports don't have a uri | |
407 if (a.uri == null && b.uri != null) return -1; | |
408 if (b.uri == null && a.uri != null) return 1; | |
409 if (a.uri == null && b.uri == null) { | |
410 return getLibrary(a).name.compareTo(getLibrary(b).name); | |
411 } | |
412 | |
413 // package: imports next | |
414 var aIsPackage = a.uri.startsWith('package:'); | |
415 var bIsPackage = b.uri.startsWith('package:'); | |
416 if (aIsPackage && !bIsPackage) { | |
417 return -1; | |
418 } else if (bIsPackage && !aIsPackage) { | |
419 return 1; | |
420 } else if (bIsPackage && aIsPackage) { | |
421 return a.uri.compareTo(b.uri); | |
422 } | |
423 | |
424 // And finally compare based on the relative uri if both are file paths. | |
425 var aUri = path.url.relative(a.source.uri.path, | |
426 from: path.url.dirname(library.source.uri.path)); | |
427 var bUri = path.url.relative(b.source.uri.path, | |
428 from: path.url.dirname(library.source.uri.path)); | |
429 return aUri.compareTo(bUri); | |
430 })).map(getLibrary); | |
431 } | 413 } |
432 } | 414 } |
433 | 415 |
434 /// An [Initializer] annotation and the target of that annotation. | 416 /// An [Initializer] annotation and the target of that annotation. |
435 class InitializerData { | 417 class InitializerData { |
436 /// The target [AstNode] of the annotation. | 418 /// The target [AstNode] of the annotation. |
437 final AstNode targetNode; | 419 final AstNode targetNode; |
438 | 420 |
439 /// The [Annotation] representing the annotation itself. | 421 /// The [Annotation] representing the annotation itself. |
440 final Annotation annotationNode; | 422 final Annotation annotationNode; |
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472 error = false; | 454 error = false; |
473 } else { | 455 } else { |
474 error = true; | 456 error = true; |
475 } | 457 } |
476 if (error) { | 458 if (error) { |
477 print('Bad value for "$field" in the initialize transformer. ' | 459 print('Bad value for "$field" in the initialize transformer. ' |
478 'Expected either one String or a list of Strings.'); | 460 'Expected either one String or a list of Strings.'); |
479 } | 461 } |
480 return files; | 462 return files; |
481 } | 463 } |
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