Import analysis_services.dart into analysis_server.dart.

pkg/analysis_services/lib/src/correction/source_buffer.dart

-// Copyright (c) 2014, 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 services.src.correction.source_buffer;
-
-import 'package:analysis_services/correction/change.dart';
-import 'package:analyzer/src/generated/source.dart';
-
-
-/**
- * Helper for building Dart source with linked positions.
- */
-class SourceBuilder {
-  final String file;
-  final int offset;
-  final StringBuffer _buffer = new StringBuffer();
-
-  final List<LinkedEditGroup> linkedPositionGroups = <LinkedEditGroup>[];
-  LinkedEditGroup _currentLinkedPositionGroup;
-  int _currentPositionStart;
-  int _exitOffset;
-
-  SourceBuilder(this.file, this.offset);
-
-  SourceBuilder.buffer()
-      : file = null,
-        offset = 0;
-
-  /**
-   * Returns the exit offset, maybe `null` if not set.
-   */
-  int get exitOffset {
-    if (_exitOffset == null) {
-      return null;
-    }
-    return offset + _exitOffset;
-  }
-
-  int get length => _buffer.length;
-
-  void addSuggestion(LinkedEditSuggestionKind kind, String value) {
-    var suggestion = new LinkedEditSuggestion(kind, value);
-    _currentLinkedPositionGroup.addSuggestion(suggestion);
-  }
-
-  void addSuggestions(LinkedEditSuggestionKind kind, List<String> values) {
-    values.forEach((value) => addSuggestion(kind, value));
-  }
-
-  /**
-   * Appends [s] to the buffer.
-   */
-  SourceBuilder append(String s) {
-    _buffer.write(s);
-    return this;
-  }
-
-  /**
-   * Ends position started using [startPosition].
-   */
-  void endPosition() {
-    assert(_currentLinkedPositionGroup != null);
-    _addPosition();
-    _currentLinkedPositionGroup = null;
-  }
-
-  /**
-   * Marks the current offset as an "exit" one.
-   */
-  void setExitOffset() {
-    _exitOffset = _buffer.length;
-  }
-
-  /**
-   * Marks start of a new linked position for the group with the given ID.
-   */
-  void startPosition(String groupId) {
-    assert(_currentLinkedPositionGroup == null);
-    for (LinkedEditGroup position in linkedPositionGroups) {
-      if (position.id == groupId) {
-        _currentLinkedPositionGroup = position;
-        break;
-      }
-    }
-    if (_currentLinkedPositionGroup == null) {
-      _currentLinkedPositionGroup = new LinkedEditGroup(groupId);
-      linkedPositionGroups.add(_currentLinkedPositionGroup);
-    }
-    _currentPositionStart = _buffer.length;
-  }
-
-  @override
-  String toString() => _buffer.toString();
-
-  /**
-   * Adds position location [SourceRange] using current fields.
-   */
-  void _addPosition() {
-    int start = offset + _currentPositionStart;
-    int end = offset + _buffer.length;
-    int length = end - start;
-    Position position = new Position(file, start);
-    _currentLinkedPositionGroup.addPosition(position, length);
-  }
-}