C_Compiler/SemanticAnalysis.cpp at master · Ryanhya/C_Compiler · GitHub

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#include<string>
#include"SemanticAnalysis.h"


usingnamespacestd;


voidSemanticAnalysis::getSymbolListIndex(list<SymbolItem> slist) {
int i = 0;
for (auto it = slist.begin(); it != slist.end(); it++) {
 toSymbolList[i] = it;
 i++;
	}
}


intSemanticAnalysis::entry(string name) {
	list<SymbolItem>::iterator tmp;
int i;

for (i = 0; i < symbol_num; i++) {
 tmp = toSymbolList[i];
if ((*tmp).name == name)
return i;
	}


}


intSemanticAnalysis::getAddr(string name) {
int i;
	list<SymbolItem>::iterator tmp;

for (i = 0; i < symbol_num; i++) {
 tmp = toSymbolList[i];
if ((*tmp).name == name) {
return (*tmp).addr;
 }
	}

}


voidSemanticAnalysis::addAddr(int index, int address) {
	(*toSymbolList[index]).addr = address;
}

voidSemanticAnalysis::addType(int index, int type) {
	(*toSymbolList[index]).type = type;
}


voidSemanticAnalysis::Gen(string op, int arg1, int arg2, int result) {
	Code c;

	c.op = op;
	c.arg1 = arg1;
	c.arg2 = arg2;
	c.result = result;

	codes[nextquad] = c;
	nextquad++;


}


intSemanticAnalysis::newtemp() {
return mid_index;
}


vector<int> SemanticAnalysis::makelist(int quad) {
	vector<int> v;
	v.push_back(quad);
return v;
}


vector<int> SemanticAnalysis::merge(vector<int> v1, vector<int> v2) {
	vector<int> v;
int i, j;
bool flag = false;

for (i = 0; i < v1.size(); i++) {
 v.push_back(v1[i]);
	}

for (i = 0; i < v2.size(); i++) {
//ÅÐ¶ÏÊÇ·ñÒÑ¾´æÔÚ
for (j = 0; j < v1.size(); j++) {
if (v2[i] == v1[j]) {
 flag = true;
break;
 }

 }
if (flag)
continue;
 v.push_back(v2[i]);

	}

return v;

}


voidSemanticAnalysis::backpatch(vector<int> p, int quad) {
int i, index;
for (i = 0; i < p.size(); i++) {
 index = p[i];
 codes[index].result = quad;
	}
}


voidSemanticAnalysis::translate(Production p) {
	string pleft, pright;
	vector<string> right;
int i;

	pleft = p.pleft;
	pright = p.pright;
	right = p.right;

if (pleft == "Y") {
if (pright == "OY") {

 }
	}
elseif (pleft == "O") {
if (pright == "C") {

 }

	}


}