blob: ebf5ded6c13f6ee02c48c94b78342c9ddbcc6721 [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/source/source_range.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 RemoveIfNullOperator extends CorrectionProducer {
@override
FixKind get fixKind => DartFixKind.REMOVE_IF_NULL_OPERATOR;
@override
Future<void> compute(ChangeBuilder builder) async {
var expression = node.thisOrAncestorOfType<BinaryExpression>();
if (expression == null) {
return;
}
SourceRange sourceRange;
if (expression.leftOperand.unParenthesized is NullLiteral) {
sourceRange =
range.startStart(expression.leftOperand, expression.rightOperand);
} else if (expression.rightOperand.unParenthesized is NullLiteral) {
sourceRange =
range.endEnd(expression.leftOperand, expression.rightOperand);
} else {
return;
}
await builder.addDartFileEdit(file, (builder) {
builder.addDeletion(sourceRange);
});
}
/// Return an instance of this class. Used as a tear-off in `FixProcessor`.
static RemoveIfNullOperator newInstance() => RemoveIfNullOperator();
}