mirror of https://gitlab.com/rnger/amath
164 lines
4.1 KiB
C++
164 lines
4.1 KiB
C++
/*
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* Copyright (c) 2015-2017 Carsten Sonne Larsen <cs@innolan.dk>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef _OPERATORS_H
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#define _OPERATORS_H
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/**
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* @file operators.h
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* @brief Application logic tied to arithmetic operators.
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*
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*/
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#include "main/nodes.h"
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#include "main/values.h"
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class UnaryNode : virtual public ExpressionNode {
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public:
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UnaryNode(ExpressionNode* expression);
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~UnaryNode();
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ReductionType GetReductionType();
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int GetPrecedence();
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SyntaxNode* GetNext();
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char* GetText();
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Number* Evaluate();
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void Attach(SyntaxNode *node);
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void Detach(SyntaxNode *node);
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void Replace(SyntaxNode *n, SyntaxNode *x);
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protected:
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char* GetNodeText();
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private:
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ExpressionNode* expression;
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};
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class AbsoluteNode : virtual public ExpressionNode {
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public:
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AbsoluteNode(ExpressionNode* expression);
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~AbsoluteNode();
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char* GetText();
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Number* Evaluate();
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int GetPrecedence();
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SyntaxNode* GetNext();
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void Attach(SyntaxNode *node);
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void Detach(SyntaxNode *node);
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void Replace(SyntaxNode *n, SyntaxNode *x);
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protected:
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char* GetNodeText();
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private:
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ExpressionNode* expression;
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};
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class NumericOperator : virtual public ExpressionNode {
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public:
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NumericOperator(ExpressionNode* left, ExpressionNode* right);
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~NumericOperator();
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SyntaxNode* GetNext();
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char* GetText();
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void Attach(SyntaxNode *node);
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void Detach(SyntaxNode *node);
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void Replace(SyntaxNode *n, SyntaxNode *x);
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protected:
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ExpressionNode* left;
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ExpressionNode* right;
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};
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class AdditionNode : public NumericOperator {
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public:
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AdditionNode(ExpressionNode* left, ExpressionNode* right);
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ReductionType GetReductionType();
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int GetPrecedence();
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Number* Evaluate();
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protected:
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char* GetNodeText();
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};
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class SubtractionNode : public NumericOperator {
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public:
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SubtractionNode(ExpressionNode* left, ExpressionNode* right);
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ReductionType GetReductionType();
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int GetPrecedence();
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Number* Evaluate();
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protected:
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char* GetNodeText();
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};
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class MultiplicationNode : public NumericOperator {
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public:
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MultiplicationNode(ExpressionNode* left, ExpressionNode* right);
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int GetPrecedence();
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Number* Evaluate();
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protected:
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char* GetNodeText();
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};
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class DivisionNode : public NumericOperator {
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public:
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DivisionNode(ExpressionNode* left, ExpressionNode* right);
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int GetPrecedence();
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Number* Evaluate();
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protected:
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char* GetNodeText();
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};
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class PowerNode : public NumericOperator {
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public:
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PowerNode(ExpressionNode* left, ExpressionNode* right);
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int GetPrecedence();
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Number* Evaluate();
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protected:
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char* GetNodeText();
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};
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class AssignmentNode : public NumericOperator {
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public:
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AssignmentNode(VariableNode* variable, ExpressionNode* expression);
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int GetPrecedence();
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bool IsSilent();
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Number* Evaluate();
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protected:
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char* GetNodeText();
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private:
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VariableNode* variable;
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ExpressionNode* expression;
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};
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#endif
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