blob: 5fa0b4ad6d5bd8c02e98dad8ada7a251727080c6 [file] [log] [blame]
// Copyright (c) 2022, 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/handler/legacy/legacy_handler.dart';
import 'package:analysis_server/src/services/refactoring/refactoring.dart';
import 'package:analyzer/dart/element/element.dart';
import 'package:analyzer/src/dart/ast/utilities.dart';
import 'package:analyzer_plugin/protocol/protocol_common.dart';
/// The handler for the `edit.getAvailableRefactorings` request.
class EditGetAvailableRefactoringsHandler extends LegacyHandler {
/// Initialize a newly created handler to be able to service requests for the
/// [server].
EditGetAvailableRefactoringsHandler(
super.server, super.request, super.cancellationToken);
@override
Future<void> handle() async {
var params = EditGetAvailableRefactoringsParams.fromRequest(request);
var file = params.file;
var offset = params.offset;
var length = params.length;
if (server.sendResponseErrorIfInvalidFilePath(request, file)) {
return;
}
// add refactoring kinds
var kinds = <RefactoringKind>[];
// Check nodes.
final searchEngine = server.searchEngine;
{
var resolvedUnit = await server.getResolvedUnit(file);
if (resolvedUnit != null) {
// Try EXTRACT_LOCAL_VARIABLE.
if (ExtractLocalRefactoring(resolvedUnit, offset, length)
.isAvailable()) {
kinds.add(RefactoringKind.EXTRACT_LOCAL_VARIABLE);
}
// Try EXTRACT_METHOD.
if (ExtractMethodRefactoring(searchEngine, resolvedUnit, offset, length)
.isAvailable()) {
kinds.add(RefactoringKind.EXTRACT_METHOD);
}
// Try EXTRACT_WIDGETS.
if (ExtractWidgetRefactoring(searchEngine, resolvedUnit, offset, length)
.isAvailable()) {
kinds.add(RefactoringKind.EXTRACT_WIDGET);
}
}
}
// check elements
var resolvedUnit = await server.getResolvedUnit(file);
if (resolvedUnit != null) {
var node = NodeLocator(offset).searchWithin(resolvedUnit.unit);
var element = server.getElementOfNode(node);
if (element != null) {
// try CONVERT_METHOD_TO_GETTER
if (element is ExecutableElement) {
if (ConvertMethodToGetterRefactoring(
searchEngine, resolvedUnit.session, element)
.isAvailable()) {
kinds.add(RefactoringKind.CONVERT_METHOD_TO_GETTER);
}
}
// try RENAME
final refactoringWorkspace = server.refactoringWorkspace;
var renameRefactoring = RenameRefactoring.create(
refactoringWorkspace, resolvedUnit, element);
if (renameRefactoring != null) {
kinds.add(RefactoringKind.RENAME);
}
}
}
// respond
sendResult(EditGetAvailableRefactoringsResult(kinds));
}
}