Move SourceReference, extract duplicate code.

pkg/analysis_server/lib/src/services/refactoring/rename_class_member.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.rename_class_member;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart' hide Element, ElementKind;
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/correction/util.dart';
 import 'package:analysis_server/src/services/refactoring/naming_conventions.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
+import 'package:analysis_server/src/services/refactoring/refactoring_internal.dart';
 import 'package:analysis_server/src/services/refactoring/rename.dart';
 import 'package:analysis_server/src/services/search/hierarchy.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/java_core.dart';
 
 
 /**
  * Checks if creating a method with the given [name] in [classElement] will
  * cause any conflicts.
@@ skipping 54 matching lines @@
         result.addStatus(validateFieldName(newName));
       }
     }
     if (element is MethodElement) {
       result.addStatus(validateMethodName(newName));
     }
     return result;
   }
 
   @override
-  Future<SourceChange> createChange() {
-    SourceChange change = new SourceChange(refactoringName);
+  Future fillChange() {
     // update declarations
     for (Element renameElement in _validator.elements) {
       if (renameElement.isSynthetic && renameElement is FieldElement) {
-        addDeclarationEdit(change, renameElement.getter);
-        addDeclarationEdit(change, renameElement.setter);
+        addDeclarationEdit(renameElement.getter);
+        addDeclarationEdit(renameElement.setter);
       } else {
-        addDeclarationEdit(change, renameElement);
+        addDeclarationEdit(renameElement);
       }
     }
     // update references
-    List<SourceReference> references =
-        getSourceReferences(_validator.references);
-    for (SourceReference reference in references) {
-      addReferenceEdit(change, reference);
-    }
+    addReferenceEdits(_validator.references);
     // potential matches
     return searchEngine.searchMemberReferences(oldName).then((nameMatches) {
       List<SourceReference> nameRefs = getSourceReferences(nameMatches);
       for (SourceReference reference in nameRefs) {
         // ignore resolved reference, we have already updated it
         if (reference.isResolved) {
           continue;
         }
         // check the element being renamed is accessible
         {
           LibraryElement whereLibrary = reference.element.library;
           if (!element.isAccessibleIn(whereLibrary)) {
             continue;
           }
         }
         // add edit
-        SourceEdit edit =
-            createReferenceEdit(reference, newName, id: _newPotentialId());
-        change.addElementEdit(reference.element, edit);
+        reference.addEdit(change, newName, id: _newPotentialId());
       }
-    }).then((_) => change);
+    });
   }
 
   String _newPotentialId() {
     String id = potentialEditIds.length.toString();
     potentialEditIds.add(id);
     return id;
   }
 }
 
 
@@ skipping 120 matching lines @@
     }
     return _prepareElements().then((_) {
       return Future.forEach(elements, (Element element) {
         return searchEngine.searchReferences(element).then((references) {
           this.references.addAll(references);
         });
       });
     });
   }
 }