css_ast/functions/
image_set_function.rs

1use super::prelude::*;
2use crate::{Image, Resolution};
3
4/// <https://drafts.csswg.org/css-images-4/#funcdef-image-set>
5///
6/// ```text
7/// <image-set()> = image-set( <image-set-option># )
8/// <image-set-option> = [ <image> | <string> ] [ <resolution> || type(<string>) ]?
9/// ```
10#[derive(Parse, Peek, ToSpan, ToCursors, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
11#[cfg_attr(feature = "serde", derive(serde::Serialize))]
12#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(self))]
13pub struct ImageSetFunction<'a> {
14	#[atom(CssAtomSet::ImageSet)]
15	pub name: T![Function],
16	pub params: CommaSeparated<'a, ImageSetParams<'a>>,
17	pub close: T![')'],
18}
19
20#[derive(Parse, Peek, ToSpan, ToCursors, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
21#[cfg_attr(feature = "serde", derive(serde::Serialize))]
22pub enum ImageSetParams<'a> {
23	Image(Image<'a>, Option<ResolutionOrType>),
24	String(T![String], Option<ResolutionOrType>),
25}
26
27#[derive(Parse, Peek, ToSpan, ToCursors, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
28#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
29pub enum ResolutionOrType {
30	Resolution(Resolution),
31	Type(#[atom(CssAtomSet::Type)] T![Function], T![String], T![')']),
32}
33
34#[cfg(test)]
35mod tests {
36	use super::*;
37	use crate::CssAtomSet;
38	use css_parse::assert_parse;
39
40	#[test]
41	fn size_test() {
42		assert_eq!(std::mem::size_of::<ImageSetFunction>(), 56);
43	}
44
45	#[test]
46	fn test_writes() {
47		assert_parse!(CssAtomSet::ATOMS, ImageSetFunction, "image-set('image.jpg'1x,'image.jpg'2x)");
48		assert_parse!(
49			CssAtomSet::ATOMS,
50			ImageSetFunction,
51			"image-set(url('1.avif')type('image/avif'),url('2.jpg')type('image/jpeg'))"
52		);
53		assert_parse!(CssAtomSet::ATOMS, ImageSetFunction, "image-set(url(foo))");
54	}
55}
css_ast/functions/image_set_function.rs

css_ast/functions/
image_set_function.rs
