css_ast/functions/
counter_functions.rs

1use super::prelude::*;
2use crate::types::CounterStyle;
3
4/// <https://drafts.csswg.org/css-lists-3/#counter-functions>
5///
6/// ```text,ignore
7/// <counter()>  =  counter( <counter-name>, <counter-style>? )
8/// ```
9#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
10#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
11#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(self))]
12#[derive(csskit_derives::NodeWithMetadata)]
13pub struct CounterFunction<'a> {
14	#[atom(CssAtomSet::Counter)]
15	pub name: T![Function],
16	pub params: CounterFunctionParams<'a>,
17	pub close: T![')'],
18}
19
20#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
21#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
22pub struct CounterFunctionParams<'a>(T![Ident], Option<T![,]>, Option<CounterStyle<'a>>);
23
24/// <https://drafts.csswg.org/css-lists-3/#counter-functions>
25///
26/// ```text,ignore
27/// <counters()> = counters( <counter-name>, <string>, <counter-style>? )
28/// ```
29#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
30#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
31#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(self))]
32#[derive(csskit_derives::NodeWithMetadata)]
33pub struct CountersFunction<'a> {
34	#[atom(CssAtomSet::Counters)]
35	pub name: T![Function],
36	pub params: CountersFunctionParams<'a>,
37	pub close: T![')'],
38}
39
40#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
41#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
42pub struct CountersFunctionParams<'a>(T![Ident], Option<T![,]>, T![String], Option<T![,]>, Option<CounterStyle<'a>>);
43
44// https://drafts.csswg.org/css-lists-3/#counter-functions
45// <counter> = <counter()> | <counters()>
46#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
47#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
48#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(children))]
49#[derive(csskit_derives::NodeWithMetadata)]
50pub enum Counter<'a> {
51	Counter(CounterFunction<'a>),
52	Counters(CountersFunction<'a>),
53}
54
55#[cfg(test)]
56mod tests {
57	use super::*;
58	use crate::CssAtomSet;
59	use css_parse::{assert_parse, assert_parse_error};
60
61	#[test]
62	fn size_test() {
63		assert_eq!(std::mem::size_of::<Counter>(), 152);
64	}
65
66	#[test]
67	fn test_writes() {
68		assert_parse!(CssAtomSet::ATOMS, Counter, "counter(foo)");
69		assert_parse!(CssAtomSet::ATOMS, Counter, "counter(foo,upper-latin)");
70		assert_parse!(CssAtomSet::ATOMS, Counter, "counters(foo,'bar')");
71		assert_parse!(CssAtomSet::ATOMS, Counter, "counters(foo,'bar',upper-latin)");
72	}
73
74	#[test]
75	fn test_errors() {
76		assert_parse_error!(CssAtomSet::ATOMS, Counter, "counter('bar')");
77		assert_parse_error!(CssAtomSet::ATOMS, Counter, "counters('bar')");
78	}
79}
css_ast/functions/counter_functions.rs

css_ast/functions/
counter_functions.rs
