| // 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.convert_getter_to_getter; |
| |
| import 'dart:async'; |
| |
| import 'package:analysis_server/src/protocol_server.dart' hide Element; |
| import 'package:analysis_server/src/services/correction/source_range.dart'; |
| import 'package:analysis_server/src/services/correction/status.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/search/hierarchy.dart'; |
| import 'package:analysis_server/src/services/search/search_engine.dart'; |
| import 'package:analyzer/src/generated/ast.dart'; |
| import 'package:analyzer/src/generated/element.dart'; |
| import 'package:analyzer/src/generated/scanner.dart'; |
| import 'package:analyzer/src/generated/source.dart'; |
| |
| /** |
| * [ConvertMethodToGetterRefactoring] implementation. |
| */ |
| class ConvertGetterToMethodRefactoringImpl extends RefactoringImpl |
| implements ConvertGetterToMethodRefactoring { |
| final SearchEngine searchEngine; |
| final PropertyAccessorElement element; |
| |
| SourceChange change; |
| |
| ConvertGetterToMethodRefactoringImpl(this.searchEngine, this.element); |
| |
| @override |
| String get refactoringName => 'Convert Getter To Method'; |
| |
| @override |
| Future<RefactoringStatus> checkFinalConditions() { |
| RefactoringStatus result = new RefactoringStatus(); |
| return new Future.value(result); |
| } |
| |
| @override |
| Future<RefactoringStatus> checkInitialConditions() { |
| RefactoringStatus result = _checkInitialConditions(); |
| return new Future.value(result); |
| } |
| |
| @override |
| Future<SourceChange> createChange() async { |
| change = new SourceChange(refactoringName); |
| // function |
| if (element.enclosingElement is CompilationUnitElement) { |
| _updateElementDeclaration(element); |
| await _updateElementReferences(element); |
| } |
| // method |
| if (element.enclosingElement is ClassElement) { |
| FieldElement field = element.variable; |
| Set<ClassMemberElement> elements = |
| await getHierarchyMembers(searchEngine, field); |
| await Future.forEach(elements, (FieldElement field) { |
| PropertyAccessorElement getter = field.getter; |
| if (!getter.isSynthetic) { |
| _updateElementDeclaration(getter); |
| return _updateElementReferences(getter); |
| } |
| }); |
| } |
| // done |
| return change; |
| } |
| |
| @override |
| bool requiresPreview() => false; |
| |
| RefactoringStatus _checkInitialConditions() { |
| if (!element.isGetter || element.isSynthetic) { |
| return new RefactoringStatus.fatal( |
| 'Only explicit getters can be converted to methods.'); |
| } |
| return new RefactoringStatus(); |
| } |
| |
| void _updateElementDeclaration(PropertyAccessorElement element) { |
| // prepare "get" keyword |
| Token getKeyword = null; |
| { |
| AstNode node = element.computeNode(); |
| if (node is MethodDeclaration) { |
| getKeyword = node.propertyKeyword; |
| } else if (node is FunctionDeclaration) { |
| getKeyword = node.propertyKeyword; |
| } |
| } |
| // remove "get " |
| if (getKeyword != null) { |
| SourceRange getRange = rangeStartEnd(getKeyword, element.nameOffset); |
| SourceEdit edit = newSourceEdit_range(getRange, ''); |
| doSourceChange_addElementEdit(change, element, edit); |
| } |
| // add parameters "()" |
| { |
| SourceEdit edit = new SourceEdit(rangeElementName(element).end, 0, '()'); |
| doSourceChange_addElementEdit(change, element, edit); |
| } |
| } |
| |
| Future _updateElementReferences(Element element) async { |
| List<SearchMatch> matches = await searchEngine.searchReferences(element); |
| List<SourceReference> references = getSourceReferences(matches); |
| for (SourceReference reference in references) { |
| Element refElement = reference.element; |
| SourceRange refRange = reference.range; |
| // insert "()" |
| var edit = new SourceEdit(refRange.end, 0, "()"); |
| doSourceChange_addElementEdit(change, refElement, edit); |
| } |
| } |
| } |