Method add

crates/css_lexer/src/kindset.rs:103–105

Returns a new [KindSet] with the addition of the supplied [Kind]. This function is marked `const` to allow creation of const [KindSets][KindSet].

(&self, kind: Kind)

	///
	/// This function is marked `const` to allow creation of const [KindSets][KindSet].
	pub const fn add(&self, kind: Kind) -> Self {
		Self(self.0 | (1 << (kind as u8 & 0b111111)))
	}

	/// Returns a new [KindSet] combined with the other [KindSet].
	///