public function getInlineOperator(string $operator): callable
    {
        if (!$this->hasInlineOperator($operator)) {
            throw new OperatorNotFoundException($operator, sprintf('Inline operator "%s" does not exist.', $operator));
        }

        return $this->inlineOperators[$operator];
    }
public function getInlineOperator(string $operator): callable
    {
        if (!$this->hasInlineOperator($operator)) {
            throw new OperatorNotFoundException($operator, sprintf('Inline operator "%s" does not exist.', $operator));
        }

        return $this->inlineOperators[$operator];
    }
public function getInlineOperator ( string $ operator ) : callable { if ( ! $ this -> hasInlineOperator ( $ operator ) ) { throw new OperatorNotFoundException ( $ operator , sprintf ( 'Inline operator "%s" does not exist.' , $ operator ) ) ; } return $ this -> inlineOperators [ $ operator ] ; }
Gets an inline-able operator.

@param string $operator The operator's name.

@throws OperatorNotFoundException
Gets an inline - able operator .