blob: 0dfea8a2e0b70e63dc55a06392f7f9d517d687a8 [file] [log] [blame]
// Copyright (c) 2020, 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 'package:analysis_server/src/services/correction/dart/abstract_producer.dart';
import 'package:analysis_server/src/services/correction/fix.dart';
import 'package:analyzer/dart/ast/ast.dart';
import 'package:analyzer/dart/element/type.dart';
import 'package:analyzer_plugin/utilities/change_builder/change_builder_core.dart';
import 'package:analyzer_plugin/utilities/fixes/fixes.dart';
import 'package:analyzer_plugin/utilities/range_factory.dart';
class ChangeTypeAnnotation extends CorrectionProducer {
String _oldAnnotation = '';
String _newAnnotation = '';
@override
List<Object> get fixArguments => [_oldAnnotation, _newAnnotation];
@override
FixKind get fixKind => DartFixKind.CHANGE_TYPE_ANNOTATION;
@override
Future<void> compute(ChangeBuilder builder) async {
var declaration = coveredNode?.parent;
if (declaration is VariableDeclaration &&
declaration.initializer == coveredNode) {
var variableList = declaration.parent;
if (variableList is VariableDeclarationList &&
variableList.variables.length == 1) {
var typeNode = variableList.type;
if (typeNode != null) {
Expression initializer = coveredNode;
var newType = initializer.staticType;
if (newType is InterfaceType || newType is FunctionType) {
_oldAnnotation = displayStringForType(typeNode.type);
_newAnnotation = displayStringForType(newType);
await builder.addDartFileEdit(file, (builder) {
builder.addReplacement(range.node(typeNode), (builder) {
builder.writeType(newType);
});
});
}
}
}
}
}
/// Return an instance of this class. Used as a tear-off in `FixProcessor`.
static ChangeTypeAnnotation newInstance() => ChangeTypeAnnotation();
}