| // Copyright (c) 2014, the Dart project authors. | |
| // Copyright (c) 2006, Kirill Simonov. | |
| // | |
| // Use of this source code is governed by an MIT-style | |
| // license that can be found in the LICENSE file or at | |
| // https://opensource.org/licenses/MIT. | |
| import 'package:source_span/source_span.dart'; | |
| import 'yaml_node.dart'; | |
| /// A [SourceSpan] with no location information. | |
| /// | |
| /// This is used with [YamlMap.wrap] and [YamlList.wrap] to provide means of | |
| /// accessing a non-YAML map that behaves transparently like a map parsed from | |
| /// YAML. | |
| class NullSpan extends SourceSpanMixin { | |
| @override | |
| final SourceLocation start; | |
| @override | |
| SourceLocation get end => start; | |
| @override | |
| final text = ''; | |
| NullSpan(Object? sourceUrl) : start = SourceLocation(0, sourceUrl: sourceUrl); | |
| } |