css_ast/units/
frequency.rs

1use super::prelude::*;
2
3/// <https://drafts.csswg.org/css-values/#frequency>
4///
5/// ```text,ignore
6/// <frequency> = <dimension-token>
7/// ```
8#[derive(Parse, Peek, ToCursors, IntoCursor, Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
9#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
10pub enum Frequency {
11	#[atom(CssAtomSet::Hz)]
12	Hz(T![Dimension]),
13	#[atom(CssAtomSet::Khz)]
14	Khz(T![Dimension]),
15}
16
17impl From<Frequency> for f32 {
18	fn from(frequency: Frequency) -> Self {
19		match frequency {
20			Frequency::Hz(f) => f.into(),
21			Frequency::Khz(f) => f.into(),
22		}
23	}
24}
25
26#[cfg(test)]
27mod tests {
28	use super::*;
29	use crate::CssAtomSet;
30	use css_parse::{assert_parse, assert_parse_error};
31
32	#[test]
33	fn size_test() {
34		assert_eq!(std::mem::size_of::<Frequency>(), 16);
35	}
36
37	#[test]
38	fn test_writes() {
39		assert_parse!(CssAtomSet::ATOMS, Frequency, "40hz");
40		assert_parse!(CssAtomSet::ATOMS, Frequency, "40khz");
41	}
42
43	#[test]
44	fn test_errors() {
45		assert_parse_error!(CssAtomSet::ATOMS, Frequency, "40w");
46		assert_parse_error!(CssAtomSet::ATOMS, Frequency, "40kw");
47	}
48}
css_ast/units/frequency.rs

css_ast/units/
frequency.rs
