css_ast/functions/
content_function.rs

1use super::prelude::*;
2
3/// <https://drafts.csswg.org/css-content-3/#funcdef-content>
4///
5/// ```text,ignore
6/// content() = content( [ text | before | after | first-letter | marker ]? )
7/// ```
8#[derive(Peek, Parse, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
9#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
10#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(self))]
11#[derive(csskit_derives::NodeWithMetadata)]
12pub struct ContentFunction {
13	#[atom(CssAtomSet::Content)]
14	pub name: T![Function],
15	pub params: Option<ContentKeyword>,
16	pub close: T![')'],
17}
18
19#[derive(Parse, Peek, IntoCursor, ToCursors, Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
20#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
21#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(skip))]
22#[derive(csskit_derives::NodeWithMetadata)]
23pub enum ContentKeyword {
24	#[atom(CssAtomSet::Text)]
25	Text(T![Ident]),
26	#[atom(CssAtomSet::Before)]
27	Before(T![Ident]),
28	#[atom(CssAtomSet::After)]
29	After(T![Ident]),
30	#[atom(CssAtomSet::FirstLetter)]
31	FirstLetter(T![Ident]),
32	#[atom(CssAtomSet::Marker)]
33	Marker(T![Ident]),
34}
35
36#[cfg(test)]
37mod tests {
38	use super::*;
39	use crate::CssAtomSet;
40	use css_parse::{assert_parse, assert_parse_error};
41
42	#[test]
43	fn size_test() {
44		assert_eq!(std::mem::size_of::<ContentFunction>(), 40);
45		assert_eq!(std::mem::size_of::<ContentKeyword>(), 16);
46	}
47
48	#[test]
49	fn test_writes() {
50		assert_parse!(CssAtomSet::ATOMS, ContentFunction, "content(text)");
51		assert_parse!(CssAtomSet::ATOMS, ContentFunction, "content(before)");
52		assert_parse!(CssAtomSet::ATOMS, ContentFunction, "content()");
53	}
54
55	#[test]
56	fn test_errors() {
57		assert_parse_error!(CssAtomSet::ATOMS, ContentFunction, "content(text before)");
58	}
59}