<?php /* * @package Parsing * @author Frank Wikström <frank@mossadal.se> * @copyright 2015 Frank Wikström * @license http://www.opensource.org/licenses/lgpl-license.php LGPL * */ /** * @namespace MathParser::Parsing::Nodes::Interfaces * * Interfaces for Nodes, in particular Node factories. */ namespace MathParser\Parsing\Nodes\Interfaces; use MathParser\Parsing\Nodes\NumberNode; /** * Interface for construction of ExpressionNode, the * implementations of the interface, usually involves * some simplification of the operands. * */ interface ExpressionNodeFactory { /** * Factory method to create an ExpressionNode with given operands. * * @param mixed $leftOperand * @param mixed $rightOperand * @retval ExpressionNode|NumberNode */ public function makeNode($leftOperand, $rightOperand); }