Function parseUnionType

src/parser/syntaxes/types.ts:66–81

* ```abnf * UnionType = UnionTypeInner *("|" UnionTypeInner) * ```

(s: ITokenStream)

 * ```
*/
function parseUnionType(s: ITokenStream): Ast.TypeSource {
	const startPos = s.getPos();

	const first = parseUnionTypeInner(s);
	if (!s.is(TokenKind.Or)) {
		return first;
	}

	const inners = [first];
	do {
		s.next();
		inners.push(parseUnionTypeInner(s));
	} while (s.is(TokenKind.Or));

	return NODE('unionTypeSource', { inners }, startPos, s.getPos());
}

/**
 * ```abnf