src/Parser/Parser.php
protected function parseOperand5(Token $name, array $args = null, Accessor $accessor = null): Node
    {
        if ($args === null) {
            $node = new Variable($name->value);
        } else {
            $node = new FunctionCall($name->value, $args);
        }
        
        return ($accessor === null) ? $node : new Access($node, $accessor);
    }
protected function parseOperand5(Token $name, array $args = null, Accessor $accessor = null): Node
    {
        if ($args === null) {
            $node = new Variable($name->value);
        } else {
            $node = new FunctionCall($name->value, $args);
        }
        
        return ($accessor === null) ? $node : new Access($node, $accessor);
    }
Operand ::= T_IDENTIFIER FunctionCall? Accessor?