css_ast/units/
frequency.rs

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

css_ast/units/
frequency.rs
