Move ChangeBuilder to analyzer_plugin

pkg/analysis_server/lib/src/utilities/change_builder_core.dart

Index: pkg/analysis_server/lib/src/utilities/change_builder_core.dart
diff --git a/pkg/analysis_server/lib/src/utilities/change_builder_core.dart b/pkg/analysis_server/lib/src/utilities/change_builder_core.dart
deleted file mode 100644
index f5c9e9cf8ff4224528288830c9010cdc6bb68bc7..0000000000000000000000000000000000000000
--- a/pkg/analysis_server/lib/src/utilities/change_builder_core.dart
+++ /dev/null
@@ -1,331 +0,0 @@
-// Copyright (c) 2015, 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.
-
-import 'dart:async';
-
-import 'package:analysis_server/protocol/protocol_generated.dart';
-import 'package:analysis_server/src/provisional/edit/utilities/change_builder_core.dart';
-import 'package:analyzer/src/generated/source.dart';
-
-/**
- * A builder used to build a [SourceChange].
- */
-class ChangeBuilderImpl implements ChangeBuilder {
-  /**
-   * The end-of-line marker used in the file being edited, or `null` if the
-   * default marker should be used.
-   */
-  String eol = null;
-
-  /**
-   * The change that is being built.
-   */
-  final SourceChange _change = new SourceChange('');
-
-  /**
-   * A table mapping group ids to the associated linked edit groups.
-   */
-  final Map<String, LinkedEditGroup> _linkedEditGroups =
-      <String, LinkedEditGroup>{};
-
-  /**
-   * Initialize a newly created change builder.
-   */
-  ChangeBuilderImpl();
-
-  @override
-  SourceChange get sourceChange {
-    _linkedEditGroups.forEach((String name, LinkedEditGroup group) {
-      _change.addLinkedEditGroup(group);
-    });
-    _linkedEditGroups.clear();
-    return _change;
-  }
-
-  @override
-  Future<Null> addFileEdit(String path, int fileStamp,
-      void buildFileEdit(FileEditBuilder builder)) async {
-    FileEditBuilderImpl builder = await createFileEditBuilder(path, fileStamp);
-    buildFileEdit(builder);
-    _change.addFileEdit(builder.fileEdit);
-    builder.finalize();
-  }
-
-  /**
-   * Create and return a [FileEditBuilder] that can be used to build edits to
-   * the file with the given [path] and [timeStamp].
-   */
-  Future<FileEditBuilderImpl> createFileEditBuilder(
-      String path, int timeStamp) async {
-    return new FileEditBuilderImpl(this, path, timeStamp);
-  }
-
-  /**
-   * Return the linked edit group with the given [groupName], creating it if it
-   * did not already exist.
-   */
-  LinkedEditGroup getLinkedEditGroup(String groupName) {
-    LinkedEditGroup group = _linkedEditGroups[groupName];
-    if (group == null) {
-      group = new LinkedEditGroup.empty();
-      _linkedEditGroups[groupName] = group;
-    }
-    return group;
-  }
-
-  @override
-  void setSelection(Position position) {
-    _change.selection = position;
-  }
-}
-
-/**
- * A builder used to build a [SourceEdit] as part of a [SourceFileEdit].
- */
-class EditBuilderImpl implements EditBuilder {
-  /**
-   * The builder being used to create the source file edit of which the source
-   * edit will be a part.
-   */
-  final FileEditBuilderImpl fileEditBuilder;
-
-  /**
-   * The offset of the region being replaced.
-   */
-  final int offset;
-
-  /**
-   * The length of the region being replaced.
-   */
-  final int length;
-
-  /**
-   * The offset of the selection for the change being built, or `-1` if the
-   * selection is not inside the change being built.
-   */
-  int _selectionOffset = -1;
-
-  /**
-   * The end-of-line marker used in the file being edited, or `null` if the
-   * default marker should be used.
-   */
-  String _eol = null;
-
-  /**
-   * The buffer in which the content of the edit is being composed.
-   */
-  final StringBuffer _buffer = new StringBuffer();
-
-  /**
-   * Initialize a newly created builder to build a source edit.
-   */
-  EditBuilderImpl(this.fileEditBuilder, this.offset, this.length) {
-    _eol = fileEditBuilder.changeBuilder.eol;
-  }
-
-  /**
-   * Create and return an edit representing the replacement of a region of the
-   * file with the accumulated text.
-   */
-  SourceEdit get sourceEdit =>
-      new SourceEdit(offset, length, _buffer.toString());
-
-  @override
-  void addLinkedEdit(
-      String groupName, void buildLinkedEdit(LinkedEditBuilder builder)) {
-    LinkedEditBuilderImpl builder = createLinkedEditBuilder();
-    int start = offset + _buffer.length;
-    try {
-      buildLinkedEdit(builder);
-    } finally {
-      int end = offset + _buffer.length;
-      int length = end - start;
-      Position position = new Position(fileEditBuilder.fileEdit.file, start);
-      LinkedEditGroup group =
-          fileEditBuilder.changeBuilder.getLinkedEditGroup(groupName);
-      group.addPosition(position, length);
-      for (LinkedEditSuggestion suggestion in builder.suggestions) {
-        group.addSuggestion(suggestion);
-      }
-    }
-  }
-
-  LinkedEditBuilderImpl createLinkedEditBuilder() {
-    return new LinkedEditBuilderImpl(this);
-  }
-
-  @override
-  void selectHere() {
-    _selectionOffset = offset + _buffer.length;
-  }
-
-  @override
-  void write(String string) {
-    _buffer.write(string);
-  }
-
-  @override
-  void writeln([String string]) {
-    if (string != null) {
-      _buffer.write(string);
-    }
-    if (_eol == null) {
-      _buffer.writeln();
-    } else {
-      _buffer.write(_eol);
-    }
-  }
-}
-
-/**
- * A builder used to build a [SourceFileEdit] within a [SourceChange].
- */
-class FileEditBuilderImpl implements FileEditBuilder {
-  /**
-   * The builder being used to create the source change of which the source file
-   * edit will be a part.
-   */
-  final ChangeBuilderImpl changeBuilder;
-
-  /**
-   * The source file edit that is being built.
-   */
-  final SourceFileEdit fileEdit;
-
-  /**
-   * Initialize a newly created builder to build a source file edit within the
-   * change being built by the given [changeBuilder]. The file being edited has
-   * the given absolute [path] and [timeStamp].
-   */
-  FileEditBuilderImpl(this.changeBuilder, String path, int timeStamp)
-      : fileEdit = new SourceFileEdit(path, timeStamp);
-
-  @override
-  void addDeletion(SourceRange range) {
-    EditBuilderImpl builder = createEditBuilder(range.offset, range.length);
-    fileEdit.add(builder.sourceEdit);
-  }
-
-  @override
-  void addInsertion(int offset, void buildEdit(EditBuilder builder)) {
-    EditBuilderImpl builder = createEditBuilder(offset, 0);
-    try {
-      buildEdit(builder);
-    } finally {
-      fileEdit.add(builder.sourceEdit);
-      _captureSelection(builder);
-    }
-  }
-
-  @override
-  void addLinkedPosition(SourceRange range, String groupName) {
-    LinkedEditGroup group = changeBuilder.getLinkedEditGroup(groupName);
-    Position position = new Position(
-        fileEdit.file, range.offset + _deltaToOffset(range.offset));
-    group.addPosition(position, range.length);
-  }
-
-  @override
-  void addReplacement(SourceRange range, void buildEdit(EditBuilder builder)) {
-    EditBuilderImpl builder = createEditBuilder(range.offset, range.length);
-    try {
-      buildEdit(builder);
-    } finally {
-      fileEdit.add(builder.sourceEdit);
-      _captureSelection(builder);
-    }
-  }
-
-  @override
-  void addSimpleInsertion(int offset, String text) {
-    EditBuilderImpl builder = createEditBuilder(offset, 0);
-    try {
-      builder.write(text);
-    } finally {
-      fileEdit.add(builder.sourceEdit);
-      _captureSelection(builder);
-    }
-  }
-
-  @override
-  void addSimpleReplacement(SourceRange range, String text) {
-    EditBuilderImpl builder = createEditBuilder(range.offset, range.length);
-    try {
-      builder.write(text);
-    } finally {
-      fileEdit.add(builder.sourceEdit);
-      _captureSelection(builder);
-    }
-  }
-
-  EditBuilderImpl createEditBuilder(int offset, int length) {
-    return new EditBuilderImpl(this, offset, length);
-  }
-
-  /**
-   * Finalize the source file edit that is being built.
-   */
-  void finalize() {
-    // Nothing to do.
-  }
-
-  /**
-   * Capture the selection offset if one was set.
-   */
-  void _captureSelection(EditBuilderImpl builder) {
-    int offset = builder._selectionOffset;
-    if (offset >= 0) {
-      Position position =
-          new Position(fileEdit.file, offset + _deltaToOffset(offset));
-      changeBuilder.setSelection(position);
-    }
-  }
-
-  /**
-   * Return the current delta caused by edits that will be applied before the
-   * given [offset]. In other words, if all of the edits that have so far been
-   * added were to be applied, then the text at the given `offset` before the
-   * edits will be at `offset + deltaToOffset(offset)` after the edits.
-   */
-  int _deltaToOffset(int targetOffset) {
-    int offset = 0;
-    for (var edit in fileEdit.edits) {
-      if (edit.offset <= targetOffset) {
-        offset += edit.replacement.length - edit.length;
-      }
-    }
-    return offset;
-  }
-}
-
-/**
- * A builder used to build a [LinkedEdit] region within an edit.
- */
-class LinkedEditBuilderImpl implements LinkedEditBuilder {
-  final EditBuilderImpl editBuilder;
-
-  final List<LinkedEditSuggestion> suggestions = <LinkedEditSuggestion>[];
-
-  LinkedEditBuilderImpl(this.editBuilder);
-
-  @override
-  void addSuggestion(LinkedEditSuggestionKind kind, String value) {
-    suggestions.add(new LinkedEditSuggestion(value, kind));
-  }
-
-  @override
-  void addSuggestions(LinkedEditSuggestionKind kind, Iterable<String> values) {
-    values.forEach((value) => addSuggestion(kind, value));
-  }
-
-  @override
-  void write(String string) {
-    editBuilder.write(string);
-  }
-
-  @override
-  void writeln([String string]) {
-    editBuilder.writeln(string);
-  }
-}