Method peek

crates/css_ast/src/units/custom.rs:17–23

(p: &Parser<'a, I>, c: Cursor)

	#[inline(always)]
	fn peek<I>(p: &Parser<'a, I>, c: Cursor) -> bool
	where
		I: Iterator<Item = Cursor> + Clone,
	{
		<T![Dimension]>::peek(p, c)
			&& p.to_source_cursor(c).source()[c.token().numeric_len() as usize..].starts_with("--")
	}
}

impl<'a> Parse<'a> for CustomDimension {