Add SourceFileEdit.time field.

pkg/analysis_server/lib/src/services/refactoring/extract_method.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.refactoring.extract_method;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart' hide Element;
 import 'package:analysis_server/src/services/correction/name_suggestion.dart';
@@ skipping 43 matching lines @@
 
 /**
  * [ExtractMethodRefactoring] implementation.
  */
 class ExtractMethodRefactoringImpl extends RefactoringImpl implements
     ExtractMethodRefactoring {
   final SearchEngine searchEngine;
   final CompilationUnit unit;
   final int selectionOffset;
   final int selectionLength;
-  String file;
+  CompilationUnitElement unitElement;
   SourceRange selectionRange;
   CorrectionUtils utils;
 
   String returnType;
   String name;
   bool extractAll = true;
   bool createGetter = false;
   final List<String> names = <String>[];
   final List<int> offsets = <int>[];
   final List<int> lengths = <int>[];
 
   Set<String> _usedNames = new Set<String>();
   Set<String> _excludedNames = new Set<String>();
   List<RefactoringMethodParameter> _parameters = <RefactoringMethodParameter>[];
   Map<String, RefactoringMethodParameter> _parametersMap = <String,
       RefactoringMethodParameter>{};
   Map<String, List<SourceRange>> _parameterReferencesMap = <String,
       List<SourceRange>>{};
   DartType _returnType;
   String _returnVariableName;
   AstNode _parentMember;
   Expression _selectionExpression;
   FunctionExpression _selectionFunctionExpression;
   List<Statement> _selectionStatements;
   List<_Occurrence> _occurrences = [];
   bool _staticContext = false;
 
   ExtractMethodRefactoringImpl(this.searchEngine, this.unit,
       this.selectionOffset, this.selectionLength) {
-    file = unit.element.source.fullName;
+    unitElement = unit.element;
     selectionRange = new SourceRange(selectionOffset, selectionLength);
     utils = new CorrectionUtils(unit);
   }
 
   bool get canCreateGetter {
     if (!parameters.isEmpty) {
       return false;
     }
     if (_selectionExpression != null) {
       if (_selectionExpression is AssignmentExpression) {
@@ skipping 164 matching lines @@
           sb.write(')');
         }
         invocationSource = sb.toString();
         // statements as extracted with their ";", so add new after invocation
         if (_selectionStatements != null) {
           invocationSource += ';';
         }
       }
       // add replace edit
       SourceEdit edit = new SourceEdit.range(range, invocationSource);
-      change.addEdit(file, edit);
+      addElementSourceChange(change, unitElement, edit);
     }
     // add method declaration
     {
       // prepare environment
       String prefix = utils.getNodePrefix(_parentMember);
       String eol = utils.endOfLine;
       // prepare annotations
       String annotations = '';
       {
         // may be "static"
@@ skipping 36 matching lines @@
                 '${prefix}  return ${_returnVariableName};$eol';
           }
           declarationSource += '${prefix}}';
         }
       }
       // insert declaration
       if (declarationSource != null) {
         int offset = _parentMember.end;
         SourceEdit edit =
             new SourceEdit(offset, 0, '${eol}${eol}${prefix}${declarationSource}');
-        change.addEdit(file, edit);
+        addElementSourceChange(change, unitElement, edit);
       }
     }
     // done
     return new Future.value(change);
   }
 
   @override
   bool requiresPreview() => false;
 
   /**
@@ skipping 751 matching lines @@
 
 /**
  * Generalized version of some source, in which references to the specific
  * variables are replaced with pattern variables, with back mapping from the
  * pattern to the original variable names.
  */
 class _SourcePattern {
   String patternSource;
   Map<String, String> originalToPatternNames = {};
 }