Import analysis_services.dart into analysis_server.dart.

pkg/analysis_services/lib/src/refactoring/rename_local.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_local;
-
-import 'dart:async';
-
-import 'package:analysis_services/correction/change.dart';
-import 'package:analysis_services/correction/status.dart';
-import 'package:analysis_services/refactoring/refactoring.dart';
-import 'package:analysis_services/search/hierarchy.dart';
-import 'package:analysis_services/search/search_engine.dart';
-import 'package:analysis_services/src/correction/util.dart';
-import 'package:analysis_services/src/refactoring/naming_conventions.dart';
-import 'package:analysis_services/src/refactoring/rename.dart';
-import 'package:analyzer/src/generated/ast.dart';
-import 'package:analyzer/src/generated/element.dart';
-import 'package:analyzer/src/generated/source.dart';
-
-
-/**
- * A [Refactoring] for renaming [LocalElement]s.
- */
-class RenameLocalRefactoringImpl extends RenameRefactoringImpl {
-  RenameLocalRefactoringImpl(SearchEngine searchEngine, LocalElement element)
-      : super(searchEngine, element);
-
-  @override
-  LocalElement get element => super.element as LocalElement;
-
-  @override
-  String get refactoringName {
-    if (element is ParameterElement) {
-      return "Rename Parameter";
-    }
-    if (element is FunctionElement) {
-      return "Rename Local Function";
-    }
-    return "Rename Local Variable";
-  }
-
-  @override
-  Future<RefactoringStatus> checkFinalConditions() {
-    RefactoringStatus result = new RefactoringStatus();
-    // checks the resolved CompilationUnit(s)
-    Source unitSource = element.source;
-    List<Source> librarySources = context.getLibrariesContaining(unitSource);
-    for (Source librarySource in librarySources) {
-      _analyzePossibleConflicts_inLibrary(result, unitSource, librarySource);
-    }
-    return new Future.value(result);
-  }
-
-  @override
-  RefactoringStatus checkNewName() {
-    RefactoringStatus result = super.checkNewName();
-    if (element is LocalVariableElement) {
-      LocalVariableElement variableElement = element;
-      if (variableElement.isConst) {
-        result.addStatus(validateConstantName(newName));
-      } else {
-        result.addStatus(validateVariableName(newName));
-      }
-    } else if (element is ParameterElement) {
-      result.addStatus(validateParameterName(newName));
-    } else if (element is FunctionElement) {
-      result.addStatus(validateFunctionName(newName));
-    }
-    return result;
-  }
-
-  @override
-  Future<Change> createChange() {
-    Change change = new Change(refactoringName);
-    // update declaration
-    addDeclarationEdit(change, element);
-    // update references
-    return searchEngine.searchReferences(element).then((refMatches) {
-      List<SourceReference> references = getSourceReferences(refMatches);
-      for (SourceReference reference in references) {
-        addReferenceEdit(change, reference);
-      }
-      return change;
-    });
-  }
-
-  void _analyzePossibleConflicts_inLibrary(RefactoringStatus result,
-      Source unitSource, Source librarySource) {
-    // prepare resolved unit
-    CompilationUnit unit = null;
-    try {
-      unit = context.resolveCompilationUnit2(unitSource, librarySource);
-    } catch (e) {
-    }
-    if (unit == null) {
-      return;
-    }
-    // check for conflicts in the unit
-    SourceRange elementRange = element.visibleRange;
-    unit.accept(new _ConflictValidatorVisitor(this, result, elementRange));
-  }
-}
-
-
-class _ConflictValidatorVisitor extends RecursiveAstVisitor<Object> {
-  final RenameLocalRefactoringImpl refactoring;
-  final RefactoringStatus result;
-  final SourceRange elementRange;
-
-  _ConflictValidatorVisitor(this.refactoring, this.result, this.elementRange);
-
-  @override
-  Object visitSimpleIdentifier(SimpleIdentifier node) {
-    Element nodeElement = node.bestElement;
-    String newName = refactoring.newName;
-    if (nodeElement != null && nodeElement.name == newName) {
-      // duplicate declaration
-      if (haveIntersectingRanges(refactoring.element, nodeElement)) {
-        String nodeKind = nodeElement.kind.displayName;
-        String message = "Duplicate ${nodeKind} '$newName'.";
-        result.addError(
-            message,
-            new RefactoringStatusContext.forElement(nodeElement));
-        return null;
-      }
-      // shadowing referenced element
-      if (elementRange.contains(node.offset) && !node.isQualified) {
-        nodeElement = getSyntheticAccessorVariable(nodeElement);
-        String nodeKind = nodeElement.kind.displayName;
-        String nodeName = getElementQualifiedName(nodeElement);
-        String nameElementSourceName = nodeElement.source.shortName;
-        String refKind = refactoring.element.kind.displayName;
-        String message =
-            'Usage of $nodeKind "$nodeName" declared in '
-                '"$nameElementSourceName" will be shadowed by renamed $refKind.';
-        result.addError(message, new RefactoringStatusContext.forNode(node));
-      }
-    }
-    return null;
-  }
-}