dart-sass/lib/src/ast/sass/expression/null.dart
Natalie Weizenbaum efd336dd20 Support null.
2016-09-30 12:41:41 -07:00

20 lines
543 B
Dart

// Copyright 2016 Google Inc. 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 '../../../visitor/interface/expression.dart';
import '../expression.dart';
class NullExpression implements Expression {
final FileSpan span;
NullExpression(this.span);
/*=T*/ accept/*<T>*/(ExpressionVisitor/*<T>*/ visitor) =>
visitor.visitNullExpression(this);
String toString() => "null";
}