lewp_css/domain/selectors/
our_selector_ext.rs

1// This file is part of css. It is subject to the license terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT. No part of predicator, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.
2// Copyright © 2017 The developers of css. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT.
3
4use {
5    super::OurSelector,
6    selectors::parser::{Combinator, Component},
7};
8
9pub trait OurSelectorExt {
10    fn is_false_if_any_selector_is_simple_and_only_uses_the_descendant_combinator(
11        &self,
12    ) -> bool;
13}
14
15impl OurSelectorExt for OurSelector {
16    #[inline(always)]
17    fn is_false_if_any_selector_is_simple_and_only_uses_the_descendant_combinator(
18        &self,
19    ) -> bool {
20        for component in self.iter_raw_match_order() {
21            match *component {
22                // Combinators are not allowed except for descendant
23                Component::Combinator(ref combinator) => {
24                    if combinator != &Combinator::Descendant {
25                        return true;
26                    }
27                }
28
29                // Only simple selectors are allowed (http://www.w3.org/TR/css3-selectors/#simple-selectors)
30                Component::PseudoElement(..) => return true,
31
32                _ => {}
33            }
34        }
35
36        false
37    }
38}
lewp_css/domain/selectors/our_selector_ext.rs

lewp_css/domain/selectors/
our_selector_ext.rs
