syntaxtreenode.cpp

全面的c语言编译器,包括词法分析语法分析有报错

/************************************************************
* file: SyntaxTreeNode.cpp
* date: 2006-04-12
* author: wuzuyang
* describe: none; SyntaxTreeNode
*************************************************************/

#include "SyntaxTreeNode.h"


SyntaxTreeNode::SyntaxTreeNode(){
	type = ERROR;
	value = 0;
	left = right = child3 = NULL;
}
SyntaxTreeNode::SyntaxTreeNode(TokenType t, int val){
	type = t;
	value = val;
	left = right = child3 = NULL;
}

SyntaxTreeNode::~SyntaxTreeNode(){
	if(left != NULL){
		delete left;
	}
	if(right != NULL){
		delete right;
	}
	if(child3 != NULL){
		delete child3;
	}
}

/*===================================================================*/

void SyntaxTreeNode::setType(TokenType t){
	type = t;
}

TokenType SyntaxTreeNode::getType(){
	return type;
}

void SyntaxTreeNode::setValue(int val){
	value = val;
}

int SyntaxTreeNode::getValue(){
	return value;
}


void SyntaxTreeNode::addLeft(TokenType t, int val){
	left = new SyntaxTreeNode(t, val);
}
void SyntaxTreeNode::addLeft(SyntaxTreeNode *n){
	left = n;
}


void SyntaxTreeNode::addRight(TokenType t, int val){
	right = new SyntaxTreeNode(t, val);
}
void SyntaxTreeNode::addRight(SyntaxTreeNode *n){
	right = n;
}


void SyntaxTreeNode::addChild3(TokenType t, int val){
	child3 = new SyntaxTreeNode(t, val);
}
void SyntaxTreeNode::addChild3(SyntaxTreeNode *n){
	child3 = n;
}


SyntaxTreeNode* SyntaxTreeNode::getLeft(){
	return left;
}

SyntaxTreeNode* SyntaxTreeNode::getRight(){
	return right;
}

SyntaxTreeNode* SyntaxTreeNode::getChild3(){
	return child3;
}