protected function naiveHandleExpression($node)
    {
        if ($node->getOperator() == '~') {

            $left = $this->operandStack->pop();
            if ($left === null) {
                throw new SyntaxErrorException();
            }

            $node->setOperator('-');
            $node->setLeft($left);

            return $node;
        }

        $right = $this->operandStack->pop();
        $left = $this->operandStack->pop();
        if ($right === null || $left === null) {
            throw new SyntaxErrorException();
        }

        $node->setLeft($left);
        $node->setRight($right);

        return $node;
    }
protected function naiveHandleExpression($node)
    {
        if ($node->getOperator() == '~') {

            $left = $this->operandStack->pop();
            if ($left === null) {
                throw new SyntaxErrorException();
            }

            $node->setOperator('-');
            $node->setLeft($left);

            return $node;
        }

        $right = $this->operandStack->pop();
        $left = $this->operandStack->pop();
        if ($right === null || $left === null) {
            throw new SyntaxErrorException();
        }

        $node->setLeft($left);
        $node->setRight($right);

        return $node;
    }
protected function naiveHandleExpression ( $ node ) { if ( $ node -> getOperator ( ) == '~' ) { $ left = $ this -> operandStack -> pop ( ) ; if ( $ left === null ) { throw new SyntaxErrorException ( ) ; } $ node -> setOperator ( '-' ) ; $ node -> setLeft ( $ left ) ; return $ node ; } $ right = $ this -> operandStack -> pop ( ) ; $ left = $ this -> operandStack -> pop ( ) ; if ( $ right === null || $ left === null ) { throw new SyntaxErrorException ( ) ; } $ node -> setLeft ( $ left ) ; $ node -> setRight ( $ right ) ; return $ node ; }
Populate node with operands, without any simplification.

@param Node $node
@retval Node
@throws SyntaxErrorException
Populate node with operands without any simplification .