pkg/front_end/lib/src/fasta/target_implementation.dart

// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

library fasta.target_implementation;

import 'builder/builder.dart' show
    ClassBuilder,
    LibraryBuilder;

import 'target.dart' show
    Target;

import 'ticker.dart' show
    Ticker;

import 'translate_uri.dart' show
    TranslateUri;

/// Provides the implementation details used by a loader for a target.
abstract class TargetImplementation extends Target {
  final TranslateUri uriTranslator;

  TargetImplementation(Ticker ticker, this.uriTranslator)
      : super(ticker);

  /// Creates a [LibraryBuilder] corresponding to [uri], if one doesn't exist
  /// already.
  LibraryBuilder createLibraryBuilder(Uri uri);

  /// Add the classes extended or implemented directly by [cls] to [set].
  void addDirectSupertype(ClassBuilder cls, Set<ClassBuilder> set);

  /// Returns all classes that will be included in the resulting program.
  List<ClassBuilder> collectAllClasses();

  /// The class [cls] is involved in a cyclic definition. This method should
  /// ensure that the cycle is broken, for example, by removing superclass and
  /// implemented interfaces.
  void breakCycle(ClassBuilder cls);

  Uri translateUri(Uri uri) => uriTranslator.translate(uri);
}