Method valid_declaration_name

crates/css_ast/src/properties/mod.rs:330–338

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

	}

	fn valid_declaration_name<I>(p: &Parser<'a, I>, c: Cursor) -> bool
	where
		I: Iterator<Item = Cursor> + Clone,
	{
		let atom = p.to_atom::<CssAtomSet>(c);
		c.token().is_dashed_ident()
			|| crate::property_atoms::CSS_PROPERTY_ATOMS.contains(&atom)
			|| CSS_VENDOR_PROPERTY_ATOMS.contains(&atom)
	}

	fn is_unknown(&self) -> bool {
		matches!(self, Self::Unknown(_))