css_ast/units/
float.rs

1use super::prelude::*;
2
3#[derive(ToCursors, IntoCursor, Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
4#[cfg_attr(feature = "serde", derive(serde::Serialize), serde(transparent))]
5pub struct CSSFloat(T![Number]);
6
7impl CSSFloat {
8	#[allow(non_upper_case_globals)]
9	pub const Zero: CSSFloat = CSSFloat(<T![Number]>::ZERO);
10}
11
12impl From<CSSFloat> for i32 {
13	fn from(value: CSSFloat) -> Self {
14		value.0.into()
15	}
16}
17
18impl From<CSSFloat> for f32 {
19	fn from(value: CSSFloat) -> Self {
20		value.0.into()
21	}
22}
23
24impl<'a> Peek<'a> for CSSFloat {
25	fn peek<I>(p: &Parser<'a, I>, c: Cursor) -> bool
26	where
27		I: Iterator<Item = Cursor> + Clone,
28	{
29		<T![Number]>::peek(p, c) && c.token().is_float()
30	}
31}
32
33impl<'a> Parse<'a> for CSSFloat {
34	fn parse<I>(p: &mut Parser<'a, I>) -> ParserResult<Self>
35	where
36		I: Iterator<Item = Cursor> + Clone,
37	{
38		if p.peek::<Self>() {
39			p.parse::<T![Number]>().map(Self)
40		} else {
41			Err(Diagnostic::new(p.next(), Diagnostic::unexpected))?
42		}
43	}
44}
45
46#[cfg(test)]
47mod tests {
48	use super::*;
49	use crate::CssAtomSet;
50	use css_parse::assert_parse;
51
52	#[test]
53	fn size_test() {
54		assert_eq!(std::mem::size_of::<CSSFloat>(), 12);
55	}
56
57	#[test]
58	fn test_writes() {
59		assert_parse!(CssAtomSet::ATOMS, CSSFloat, "0.01");
60		assert_parse!(CssAtomSet::ATOMS, CSSFloat, "3.141");
61	}
62}
css_ast/units/float.rs

css_ast/units/
float.rs
