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any_selector.dart
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any_selector.dart
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// Copyright 2018 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:meta/meta.dart';
import '../ast/selector.dart';
import 'interface/selector.dart';
/// A visitor that visits each selector in a Sass selector AST and returns
/// `true` if any of the individual methods return `true`.
///
/// Each method returns `false` by default.
@internal
mixin AnySelectorVisitor implements SelectorVisitor<bool> {
bool visitComplexSelector(ComplexSelector complex) => complex.components
.any((component) => visitCompoundSelector(component.selector));
bool visitCompoundSelector(CompoundSelector compound) =>
compound.components.any((simple) => simple.accept(this));
bool visitPseudoSelector(PseudoSelector pseudo) {
var selector = pseudo.selector;
return selector == null ? false : selector.accept(this);
}
bool visitSelectorList(SelectorList list) =>
list.components.any(visitComplexSelector);
bool visitAttributeSelector(AttributeSelector attribute) => false;
bool visitClassSelector(ClassSelector klass) => false;
bool visitIDSelector(IDSelector id) => false;
bool visitParentSelector(ParentSelector parent) => false;
bool visitPlaceholderSelector(PlaceholderSelector placeholder) => false;
bool visitTypeSelector(TypeSelector type) => false;
bool visitUniversalSelector(UniversalSelector universal) => false;
}