/**
* parses NON_OPTIONAL rule
*
* @return null|PHPDocType
*/
private function parse_non_optional()
{
if (!$this->lexer->has_more()) {
return null;
}
$start_index = $this->lexer->get_token_index();
$tok = $this->lexer->next_token();
if ($tok === "(") {
$type = $this->parse_type();
$string_rep = $this->lexer->get_tokens_from_index_to_current_index($start_index);
TestScribe\Utils\Assert::with('Box\\TestScribe\\PHPDoc\\PHPDocTypeException')->is_not_null($type, "The PHPDocType '{$string_rep}' is invalid or is not supported");
$tok = $this->lexer->next_token();
$string_rep = $this->lexer->get_tokens_from_index_to_current_index($start_index);
TestScribe\Utils\Assert::with('Box\\TestScribe\\PHPDoc\\PHPDocTypeException')->are_equal(")", $tok, "The PHPDocType '{$string_rep}' is invalid or is not supported");
return $type;
} else {
$this->lexer->pushback();
}
$type = $this->parse_primitive();
if ($type !== null) {
return $type;
}
$type = $this->parse_class();
return $type;
}
/**
* @return void
*/
public function pushback()
{
TestScribe\Utils\Assert::with('Box\\TestScribe\\PHPDoc\\PHPDoc_Lexer_Exception')->are_not_equal(0, $this->token_index, "nothing to push back");
$this->token_index--;
}
