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1705023.y
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1705023.y
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%{
#include <bits/stdc++.h>
#include "SymbolTable.h"
#define YYSTYPE SymbolInfo*
using namespace std;
int yyparse(void);
int yylex(void);
FILE *fp;
extern FILE *yyin;
extern int yylineno;
extern int line_no;
extern int error_count;
int n = 30;
ScopeTable* globalScope = new ScopeTable(n);
SymbolTable* symTab = new SymbolTable(n,globalScope);
ofstream errorFile("error.txt");
ofstream logFile("log.txt");
ofstream codeFile("code.asm");
string currFunc;
int var_count = 0;
int curr_offset = 0;
stack<int> prev_offset;
string data_seg = "NEWLINE DB 13, 10, '$'\n\n";
int max_temp = 0;
int temp_count = 0;
int label_count = 0;
void yyerror(char *str)
{
cout<<"Syntax error"<<endl;
}
string createNewVar()
{
string var_name = "var"+to_string(var_count);
var_count++;
return var_name;
}
string createTempVar()
{
string var_name = "t"+to_string(temp_count);
if(temp_count==max_temp)
max_temp++;
temp_count++;
return var_name;
}
string createNewLabel()
{
string label_name = "L"+to_string(label_count);
label_count++;
return label_name;
}
SymbolInfo* insertItem(SymbolInfo* head,SymbolInfo* s)
{
if(s==NULL)
return head;
SymbolInfo* y = head;
SymbolInfo* prev_y = NULL;
int n;
logFile<<"\n";
while(y!=NULL){
n = y->getArrSize();
logFile<<y->getName();
if(n>=0){
logFile<<"["<<n<<"]";
}
logFile<<",";
prev_y = y;
y = y->nextInfoObj;
}
n = s->getArrSize();
logFile<<s->getName();
if(n>=0){
logFile<<"["<<n<<"]";
}
logFile<<"\n\n";
if(prev_y==NULL)
head = s;
else prev_y->nextInfoObj = s;
return head;
}
SymbolInfo* paramInsert(SymbolInfo* head,SymbolInfo* s)
{
if(s==NULL)
return head;
SymbolInfo* y = head;
SymbolInfo* prev_y = NULL;
bool mulDec = false;
string paramType;
logFile<<"\n";
while(y!=NULL){
paramType = y->getDataType();
if(paramType=="INT"){
paramType = "int";
}
else if(paramType=="FLOAT"){
paramType = "float";
}
else if(paramType=="VOID"){
paramType = "void";
}
logFile<<paramType<<" ";
if(y->getName()=="NO_NAME"){
logFile<<",";
}
else logFile<<y->getName()<<",";
if(y->getName()==s->getName() && s->getName()!="NO_NAME"){
mulDec = true;
}
prev_y = y;
y = y->nextInfoObj;
}
paramType = s->getDataType();
if(paramType=="INT"){
paramType = "int";
}
else if(paramType=="FLOAT"){
paramType = "float";
}
else if(paramType=="VOID"){
paramType = "void";
}
logFile<<paramType<<" ";
if(s->getName()=="NO_NAME"){
logFile<<"\n\n";
}
else logFile<<s->getName()<<"\n\n";
if(mulDec){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<s->getName()<<" in parameter"<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<s->getName()<<" in parameter"<<endl<<endl;
}
if(prev_y==NULL)
head = s;
else prev_y->nextInfoObj = s;
return head;
}
void writePrintProc(ofstream& outFile)
{
outFile<<"; printf function\n\n";
outFile<<"printf PROC\n\nPUSH BP\nMOV BP, SP\n\n";
outFile<<"XOR CX, CX\nMOV BX, 10\n\n";
outFile<<"MOV AX, WORD PTR[BP+4]\nCMP AX, 0\nJGE GET_DIGITS\n";
outFile<<"PUSH AX\nMOV AH, 2\nMOV DL, '-'\nINT 21H\nPOP AX\nNEG AX\n";
outFile<<"GET_DIGITS:\nXOR DX, DX\nDIV BX\nPUSH DX\nINC CX\n";
outFile<<"CMP AX, 0\nJNE GET_DIGITS\nMOV AH, 2\n";
outFile<<"PRINT_DIGITS:\nPOP DX\nADD DL, 30H\nINT 21H\nLOOP PRINT_DIGITS\n";
outFile<<"MOV AH, 9\nLEA DX, NEWLINE\nINT 21H\n";
outFile<<"POP BP\nRET 2\n\nprintf ENDP\n\n";
}
%}
%token IF ID LPAREN RPAREN SEMICOLON COMMA LCURL RCURL INT FLOAT VOID
%token LTHIRD RTHIRD CONST_INT CONST_FLOAT FOR WHILE RETURN PRINTLN
%token ASSIGNOP LOGICOP RELOP ADDOP MULOP INCOP DECOP NOT
%nonassoc THEN
%nonassoc ELSE
%%
start : program
{
logFile<<"Line "<<yylineno-1<<": start : program"<<endl<<endl;
symTab->printAllScope(logFile);
for(int i=0;i<max_temp;i++)
data_seg += "t"+to_string(i)+" DW ?\n";
logFile<<"Total lines : "<<yylineno-1<<endl;
logFile<<"Total errors : "<<error_count<<endl;
if(error_count==0){
codeFile<<".MODEL SMALL\n\n";
codeFile<<".STACK 100H\n\n";
codeFile<<".DATA\n\n";
codeFile<<data_seg<<"\n";
codeFile<<".CODE\n\n";
codeFile<<$1->code;
writePrintProc(codeFile);
codeFile<<"END MAIN";
}
codeFile.close();
ifstream ifs("code.asm");
ofstream ofs("optimized_code.asm");
string line;
string instruction,reg1,reg2;
while(getline(ifs,line)){
string tmp,r1,r2;
if(line.empty()){
ofs<<line<<endl;
continue;
}
stringstream ss(line);
ss>>instruction;
if(instruction[0]==';'){
ofs<<line<<endl;
continue;
}
if(instruction == "MOV"){
getline(ss,tmp,',');
stringstream stemp(tmp);
stemp>>r1;
if(r1=="WORD")
stemp>>r1;
ss>>r2;
if(r2=="WORD")
ss>>r2;
if(!((r1==reg1&&r2==reg2)||(r1==reg2&&r2==reg1))){
reg1=r1;
reg2=r2;
ofs<<line<<endl;
}
}
else{
reg1 = "";
reg2 = "";
ofs<<line<<endl;
}
}
ifs.close();
ofs.close();
}
;
program : program unit
{
logFile<<"Line "<<yylineno<<": program : program unit"<<endl;
string s = $1->getName()+"\n"+$2->getName();
$$ = new SymbolInfo(s,"proc");
$$->code = $1->code + $2->code;
logFile<<"\n"<<s<<"\n\n";
delete $1;
delete $2;
}
| unit
{
logFile<<"Line "<<yylineno<<": program : unit"<<endl;
string s = $1->getName();
$$ = new SymbolInfo(s,"proc");
$$->code = $1->code;
logFile<<"\n"<<s<<"\n\n";
delete $1;
}
;
unit : var_declaration
{
logFile<<"Line "<<yylineno<<": unit : var_declaration"<<endl;
string s = $1->getName();
$$ = new SymbolInfo(s,"unit");
logFile<<"\n"<<s<<"\n\n";
delete $1;
}
| func_declaration
{
logFile<<"Line "<<yylineno<<": unit : func_declaration"<<endl;
string s = $1->getName();
$$ = new SymbolInfo(s,"unit");
logFile<<"\n"<<s<<"\n\n";
}
| func_definition
{
logFile<<"Line "<<yylineno<<": unit : func_definition"<<endl;
string s = $1->getName();
$$ = new SymbolInfo(s+"\n","unit");
$$->code = $1->code;
logFile<<"\n"<<s<<"\n\n";
}
;
func_declaration : type_specifier ID LPAREN parameter_list RPAREN SEMICOLON
{
if($2->isFunc){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
}
else{
string varType = $2->getDataType();
if(varType!="NO_TYPE"){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
}
else{
$2->isFunc = true;
$2->setDataType($1->getName());
$2->paramlist = $4;
symTab->Insert($2);
}
}
string s = "(";
SymbolInfo* param_start = $4;
while(param_start!=NULL){
string paramType = param_start->getDataType();
if(paramType=="INT"){
s += "int ";
}
else if(paramType=="FLOAT"){
s += "float ";
}
else if(paramType=="VOID"){
s += "void ";
}
if(param_start->getName()!="NO_NAME"){
s += param_start->getName();
}
param_start = param_start->nextInfoObj;
if(param_start!=NULL)
s += ",";
}
s += ");";
string func_str = $1->getType()+" "+$2->getName()+s;
$$ = new SymbolInfo(func_str,"func_dec");
logFile<<"Line "<<yylineno<<": func_declaration : type_specifier ID LPAREN parameter_list RPAREN SEMICOLON"<<endl;
logFile<<"\n"<<func_str<<"\n\n";
delete $1;
}
| type_specifier ID LPAREN RPAREN SEMICOLON
{
if($2->isFunc){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
}
else{
string varType = $2->getDataType();
if(varType!="NO_TYPE"){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
}
else{
$2->isFunc = true;
$2->setDataType($1->getName());
symTab->Insert($2);
}
}
string func_str = $1->getType()+" "+$2->getName()+"();";
$$ = new SymbolInfo(func_str,"func_dec");
logFile<<"Line "<<yylineno<<": func_declaration : type_specifier ID LPAREN RPAREN SEMICOLON"<<endl;
logFile<<"\n"<<func_str<<"\n\n";
delete $1;
}
;
func_def_start : type_specifier ID LPAREN parameter_list RPAREN LCURL
{
if($2->isFunc){
if($2->isDefined){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
}
else{
if($2->getDataType()!=$1->getName()){
error_count++;
errorFile<<"Error at line "<<yylineno;
errorFile<<": Return type mismatch with function declaration in function "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno;
logFile<<": Return type mismatch with function declaration in function "<<$2->getName()<<endl<<endl;
}
SymbolInfo* funcParam = $2->paramlist;
SymbolInfo* defParam = $4;
if(funcParam==NULL){
error_count++;
errorFile<<"Error at line "<<yylineno;
errorFile<<": Total number of arguments mismatch with declaration in function "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno;
logFile<<": Total number of arguments mismatch with declaration in function "<<$2->getName()<<endl<<endl;
}
while(funcParam!=NULL && defParam!=NULL){
if(funcParam->getDataType()!=defParam->getDataType()){
error_count++;
errorFile<<"Error at line "<<yylineno;
errorFile<<": Parameter type mismatch with declaration in function"<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno;
logFile<<": Parameter type mismatch with declaration in function"<<$2->getName()<<endl<<endl;
break;
}
funcParam = funcParam->nextInfoObj;
defParam = defParam->nextInfoObj;
if((funcParam==NULL&&defParam!=NULL)||(funcParam!=NULL&&defParam==NULL)){
error_count++;
errorFile<<"Error at line "<<yylineno;
errorFile<<": Total number of arguments mismatch with declaration in function "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno;
logFile<<": Total number of arguments mismatch with declaration in function "<<$2->getName()<<endl<<endl;
break;
}
}
$2->isDefined = true;
$2->paramlist = $4;
}
}
else{
string varType = $2->getDataType();
if(varType!="NO_TYPE"){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
}
else{
$2->isFunc = true;
$2->setDataType($1->getName());
$2->isDefined = true;
$2->paramlist = $4;
symTab->Insert($2);
}
}
symTab->enterScope();
SymbolInfo* funcParam = $4;
int no_param = 0;
while(funcParam!=NULL){
no_param++;
funcParam = funcParam->nextInfoObj;
}
funcParam = $4;
while(funcParam!=NULL){
funcParam->var_scope = "param";
funcParam->addr = 2*(no_param+1);
funcParam->var_symbol = "WORD PTR[BP+"+to_string(funcParam->addr)+"]";
if(funcParam->getName()=="NO_NAME"){
error_count++;
errorFile<<"Error at line "<<yylineno;
errorFile<<": Parameter without name in definition of function "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno;
logFile<<": Parameter without name in definition of function "<<$2->getName()<<endl<<endl;
}
else if(funcParam->getDataType()!="VOID"){
SymbolInfo* paramObj = new SymbolInfo(funcParam->getName(),funcParam->getType());
paramObj->setDataType(funcParam->getDataType());
paramObj->var_scope = funcParam->var_scope;
paramObj->addr = funcParam->addr;
paramObj->var_symbol = funcParam->var_symbol;
symTab->Insert(paramObj);
}
funcParam = funcParam->nextInfoObj;
no_param--;
}
currFunc = $2->getName();
$$ = new SymbolInfo($2->getName(),"ID");
$$->setDataType($1->getName());
$$->paramlist = $4;
$$->code = $2->getName()+" PROC\n";
$$->code += "PUSH BP\nMOV BP,SP\n\n";
delete $1;
}
| type_specifier ID LPAREN RPAREN LCURL
{
if($2->isFunc){
if($2->isDefined){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
}
else{
if($2->getDataType()!=$1->getName()){
error_count++;
errorFile<<"Error at line "<<yylineno;
errorFile<<": Return type mismatch with function declaration in function "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno;
logFile<<": Return type mismatch with function declaration in function "<<$2->getName()<<endl<<endl;
}
SymbolInfo* funcParam = $2->paramlist;
if(funcParam!=NULL){
error_count++;
errorFile<<"Error at line "<<yylineno;
errorFile<<": Total number of arguments mismatch with declaration in function "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno;
logFile<<": Total number of arguments mismatch with declaration in function "<<$2->getName()<<endl<<endl;
}
$2->isDefined = true;
$2->paramlist = NULL;
}
}
else{
string varType = $2->getDataType();
if(varType!="NO_TYPE"){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<$2->getName()<<endl<<endl;
}
else{
$2->isFunc = true;
$2->setDataType($1->getName());
$2->isDefined = true;
symTab->Insert($2);
}
}
symTab->enterScope();
currFunc = $2->getName();
$$ = new SymbolInfo($2->getName(),"ID");
$$->setDataType($1->getName());
$$->code = $2->getName()+" PROC\n";
if($2->getName()=="main"){
$$->code += "MOV AX,@DATA\n";
$$->code += "MOV DS,AX\n\n";
}
$$->code += "PUSH BP\nMOV BP,SP\n\n";
delete $1;
}
func_definition : func_def_start compound_end
{
string comp_str = "{\n"+$2->getName();
logFile<<"\n"<<comp_str<<"\n\n";
symTab->printAllScope(logFile);
SymbolInfo* funcParam = $1->paramlist;
string s="";
string paramType = $1->getDataType();
if(paramType=="INT"){
s += "int ";
}
else if(paramType=="FLOAT"){
s += "float ";
}
else if(paramType=="VOID"){
s += "void ";
}
s += $1->getName();
if(funcParam!=NULL){
logFile<<"Line "<<yylineno<<": func_definition : type_specifier ID LPAREN parameter_list RPAREN compound_statement"<<endl;
}
else{
logFile<<"Line "<<yylineno<<": func_definition :type_specifier ID LPAREN RPAREN compound_statement"<<endl;
}
int no_param = 0;
s += "(";
while(funcParam!=NULL){
no_param++;
string paramType = funcParam->getDataType();
if(paramType=="INT"){
s += "int ";
}
else if(paramType=="FLOAT"){
s += "float ";
}
else if(paramType=="VOID"){
s += "void ";
}
if(funcParam->getName()!="NO_NAME"){
s += funcParam->getName();
}
funcParam = funcParam->nextInfoObj;
if(funcParam!=NULL)
s += ",";
}
s += ")";
string func_str = s + comp_str;
$$ = new SymbolInfo(func_str,"func_def");
logFile<<"\n"<<func_str<<"\n\n";
string end_label = "END_"+$1->getName();
$$->code = "; "+s+"\n\n";
$$->code += $1->code + $2->code;
$$->code += end_label + ":\nPOP BP\n";
if($1->getName()=="main"){
$$->code += "MOV AH,4CH\n";
$$->code += "INT 21H\n\n";
}
else{
$$->code += "RET ";
if(no_param>0)
$$->code += to_string(no_param+1);
$$->code += "\n\n";
}
$$->code += $1->getName()+" ENDP\n\n";
curr_offset = 0;
symTab->exitScope();
}
;
parameter_list : parameter_list COMMA type_specifier ID
{
logFile<<"Line "<<yylineno<<": parameter_list : parameter_list COMMA type_specifier ID"<<endl;
string paramType = $3->getName();
SymbolInfo* paramObj = new SymbolInfo($4->getName(),"ID");
paramObj->setDataType(paramType);
$$ = paramInsert($1,paramObj);
if(paramType=="VOID"){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
}
delete $3;
if($4->getDataType()=="NO_TYPE")
delete $4;
}
| parameter_list COMMA type_specifier
{
logFile<<"Line "<<yylineno<<": parameter_list : parameter_list COMMA type_specifier"<<endl;
string paramType = $3->getName();
SymbolInfo* paramObj = new SymbolInfo("NO_NAME","ID");
paramObj->setDataType(paramType);
$$ = paramInsert($1,paramObj);
if(paramType=="VOID"){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
}
delete $3;
}
| type_specifier ID
{
string paramType = $1->getName();
if(paramType=="VOID"){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
}
$$ = new SymbolInfo($2->getName(),"ID");
$$->setDataType(paramType);
logFile<<"Line "<<yylineno<<": parameter_list : type_specifier ID"<<endl;
logFile<<"\n"<<$1->getType()<<" "<<$2->getName()<<"\n\n";
delete $1;
if($2->getDataType()=="NO_TYPE")
delete $2;
}
| type_specifier
{
string paramType = $1->getName();
if(paramType=="VOID"){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
}
$$ = new SymbolInfo("NO_NAME","ID");
$$->setDataType(paramType);
logFile<<"Line "<<yylineno<<": parameter_list : type_specifier"<<endl;
logFile<<"\n"<<$1->getType()<<"\n\n";
delete $1;
}
;
compound_start : LCURL {
symTab->enterScope();
prev_offset.push(curr_offset);
}
;
compound_end : statements RCURL
{
logFile<<"Line "<<yylineno<<": compound_statement : LCURL statements RCURL"<<endl;
string s = $1->getName()+"\n}";
$$ = new SymbolInfo(s,"comp");
$$->code = $1->code;
delete $1;
}
| RCURL
{
logFile<<"Line "<<yylineno<<": compound_statement : LCURL RCURL"<<endl;
$$ = new SymbolInfo("}","comp");
}
;
compound_statement : compound_start compound_end
{
string s = "{\n"+$2->getName();
$$ = new SymbolInfo(s,"comp_stmt");
$$->code = $2->code;
if(!prev_offset.empty()){
curr_offset = prev_offset.top();
prev_offset.pop();
}
logFile<<"\n"<<s<<"\n\n";
delete $2;
}
;
var_declaration : type_specifier declaration_list SEMICOLON
{
string varType = $1->getName();
string s = "";
string data_str ="";
SymbolInfo* head = $2;
if(varType=="VOID"){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Variable type cannot be Void"<<endl<<endl;
while($2!=NULL){
s += head->getName();
$2 = $2->nextInfoObj;
delete head;
head = $2;
if(head!=NULL){
s += ",";
}
}
}
else{
while(head!=NULL){
SymbolInfo* item = new SymbolInfo(head->getName(),head->getType());
item->setDataType(varType);
s += head->getName();
int n = head->getArrSize();
item->setArrSize(n);
if(n>=0){
s += "[";
s += to_string(n);
s += "]";
}
if(!symTab->Insert(item)){
error_count++;
errorFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<head->getName()<<endl<<endl;
logFile<<"Error at line "<<yylineno<<": Multiple declaration of "<<head->getName()<<endl<<endl;
}
else{
if(symTab->isGlobal()){
item->var_scope = "global";
item->var_symbol = createNewVar();
data_str += item->var_symbol+" DW ";
if(n>=0)
data_str += to_string(n)+" DUP (?)\n";
else data_str += "?\n";
}
else{
item->var_scope = "local";
if(n>=0)
curr_offset += 2*n;
else curr_offset += 2;
item->addr = curr_offset;
item->var_symbol = "WORD PTR[BP-"+to_string(item->addr)+"]";
data_str += "; "+item->getName()+" "+item->var_symbol+"\n";
}
}
head = head->nextInfoObj;
if(head!=NULL){
s += ",";
}
}
}
string unit_name = $1->getType()+" "+s+";";
$$ = new SymbolInfo(unit_name,"var_dec");
data_seg += ";"+unit_name+"\n"+data_str+"\n";
logFile<<"Line "<<yylineno<<": var_declaration : type_specifier declaration_list SEMICOLON"<<endl;
logFile<<"\n"<<unit_name<<"\n\n";
delete $1;
}
;
type_specifier : INT {
logFile<<"Line "<<yylineno<<": type_specifier : INT"<<endl;
$$ = new SymbolInfo("INT","int");
logFile<<"\nint\n\n";
}
| FLOAT {
logFile<<"Line "<<yylineno<<": type_specifier : FLOAT"<<endl;
$$ = new SymbolInfo("FLOAT","float");
logFile<<"\nfloat\n\n";
}
| VOID {
logFile<<"Line "<<yylineno<<": type_specifier : VOID"<<endl;
$$ = new SymbolInfo("VOID","void");
logFile<<"\nvoid\n\n";
}
;
declaration_list : declaration_list COMMA ID
{
logFile<<"Line "<<yylineno<<": declaration_list : declaration_list COMMA ID "<<endl;
SymbolInfo* idObj = new SymbolInfo($3->getName(),$3->getType());
$$ = insertItem($1,idObj);
}
| declaration_list COMMA ID LTHIRD CONST_INT RTHIRD
{
logFile<<"Line "<<yylineno<<": declaration_list : declaration_list COMMA ID LTHIRD CONST_INT RTHIRD "<<endl;
int n = stoi($5->getName());
SymbolInfo* idObj = new SymbolInfo($3->getName(),$3->getType());
idObj->setArrSize(n);
$$ = insertItem($1,idObj);
}
| ID {
logFile<<"Line "<<yylineno<<": declaration_list : ID "<<endl;
string varType = $1->getDataType();
if(varType=="NO_TYPE"){
$$ = $1;
}
else{
$$ = new SymbolInfo($1->getName(),$1->getType());
}
logFile<<"\n"<<$1->getName()<<"\n\n";
}
| ID LTHIRD CONST_INT RTHIRD
{
logFile<<"Line "<<yylineno<<": declaration_list : ID LTHIRD CONST_INT RTHIRD "<<endl;
string varType = $1->getDataType();
int n = stoi($3->getName());
if(varType=="NO_TYPE"){
$$ = $1;
}
else{
$$ = new SymbolInfo($1->getName(),$1->getType());
}
$$->setArrSize(n);
logFile<<"\n"<<$1->getName()<<"["<<n<<"]"<<"\n\n";
delete $3;
}
;
statements : statement
{
logFile<<"Line "<<yylineno<<": statements : statement"<<endl;
string s = $1->getName();
$$ = new SymbolInfo(s,"stmts");
$$->code = $1->code;
logFile<<"\n"<<s<<"\n\n";
delete $1;
}
| statements statement
{
logFile<<"Line "<<yylineno<<": statements : statements statement"<<endl;
string s = $1->getName()+"\n"+$2->getName();
$$ = new SymbolInfo(s,"stmts");
$$->code = $1->code + $2->code;
logFile<<"\n"<<s<<"\n\n";
delete $1;
delete $2;
}
;
statement : var_declaration
{
logFile<<"Line "<<yylineno<<": statement : var_declaration"<<endl;
string s = $1->getName();
$$ = new SymbolInfo(s,"stmt");
logFile<<"\n"<<s<<"\n\n";
delete $1;
}
| expression_statement
{
logFile<<"Line "<<yylineno<<": statement : expression_statement"<<endl;
string s = $1->getName();
$$ = new SymbolInfo(s,"stmt");
$$->code = $1->code;
temp_count--;