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esil.y
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esil.y
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%{
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include "esil.h"
int yylex(void);
int yyerror(char *);
typedef struct Tnode tnode;
typedef struct TypeDef Typedef;
typedef struct Lsymbol lsymbol;
typedef struct Gsymbol gsymbol;
typedef struct FnCheck fncheck;
typedef struct TDataType tdatatype;
typedef struct ArgStruct argstruct;
lsymbol *lhead = NULL;
lsymbol *llast = NULL;
gsymbol *ghead = NULL;
gsymbol *glast = NULL;
Typedef *typehead = NULL;
Typedef *typelast = NULL;
fncheck *fnhead = NULL;
fncheck *fnlast = NULL;
argstruct *arghead = NULL;
argstruct *arglast = NULL;
tnode *thead = NULL;
tnode *exprhead = NULL;
tnode *exprlast = NULL;
int main_flag=0;
int mem_count = 0;
int typedefsize = 0;
int traverse(tnode *);
int label=1,regcount=0;
int datatype,Datatype, DataType;
gsymbol *gtypedef = NULL;
gsymbol *gtypeDef = NULL;
gsymbol *gTypedef = NULL;
void checkFuncDefn();
void checkTypeDefn(tnode *);
void InstallArg(argstruct *);
void Linstall(char *,int, gsymbol *);
void checktype(tnode *,tnode *,tnode *);
void Arginstall(char *, int,int, gsymbol *);
void checkFunction(int, char *, argstruct *, gsymbol *);
void Ginstall(char *, int, int, int, argstruct *, Typedef *, gsymbol *);
gsymbol *Glookup(char *);
lsymbol *Llookup(char *);
tdatatype* getTypeDefDataType(tnode *);
tnode *treecreate(int ,int ,char *,int ,tnode *, tnode *, tnode *,lsymbol *, gsymbol *, tnode *, tnode *);
%}
%union {
struct Tnode *ptr;
}
%token IF THEN ELSE ENDIF WHILE DO ENDWHILE RETURN DECL ENDDECL BEGINING END MAIN NOT
%token CONST ID READ WRITE INTEGER DOT GT GE LT LE EQ AND OR NE TYPEDEF BOOLEAN TRUE FALSE
%type <ptr> GT GE LT LE EQ AND OR NE TRUE FALSE IF WHILE RETURN NOT RetStmt Variable TypedefVar
%type <ptr> CONST ID '+' '-' '*' '/' '%' '=' READ WRITE Mainblock Stmt Body StmtList expr endif
%left OR
%left AND
%left EQ NE
%left LT LE GT GE
%left '+' '-'
%left '*' '/' '%'
%right NOT
%right DOT
%%
Prog: TypeDefblock GDefblock FdefList Mainblock {
checkFuncDefn();
printf("\n\nSUCCESSFULLY GENERATED ASSEMBLY CODE\n");
}
;
TypeDefblock:
|TypeDefblock TypeDef
;
TypeDef: TYPEDEF ID '{' TypeDefList '}' {
Ginstall($2->NAME, TYPEDEF_VARTYPE, typedefsize, 0, NULL, typehead, NULL);
gsymbol *gtemp = Glookup($2->NAME);
int bind = *(gtemp->BINDING);
Typedef *typedeftemp = gtemp->TYPEDEFLIST;
while(typedeftemp) {
*(typedeftemp->BINDING) = bind + *(typedeftemp->BINDING);
typedeftemp = typedeftemp->NEXT;
}
gtypedef = NULL;
typehead = NULL;
typelast = NULL;
typedefsize = 0;
}
;
TypeDefList:
|TypeDefList TypeDefDecl
;
TypeDefDecl: TypeDefIdType TypeDefIdList ';'
;
TypeDefIdType: INTEGER { DataType = INT_VARTYPE; }
|BOOLEAN { DataType = BOOL_VARTYPE; }
|ID {
gsymbol *gtemp;
gtemp = Glookup($1->NAME);
if(gtemp) {
if(gtemp->TYPE != TYPEDEF_VARTYPE) {
yyerror("\nERR: Invalid Datatype for typedef declaration\n");
}
}
else {
yyerror("\nERR: Invalid Datatype for typedef declaration\n");
}
if(gtemp->GTypeDefType!=NULL)
yyerror("\nERR: Invalid Datatype for typedef declaration\n");
DataType = TYPEDEF_VARTYPE;
gtypedef = gtemp;
}
;
TypeDefIdList: TypeDefId
|TypeDefIdList ',' TypeDefId
;
TypeDefId: ID {
Typedef *typetemp = (Typedef *)malloc(sizeof(Typedef));
typetemp->NAME = $1->NAME;
typetemp->TYPE = DataType;
typetemp->NEXT = NULL;
typetemp->BINDING=(int*)malloc(sizeof(int));
*(typetemp->BINDING) = typedefsize;
if(DataType == TYPEDEF_VARTYPE)
typetemp->GTypeDefPtr = gtypedef;
else
typetemp->GTypeDefPtr = NULL;
if(typehead) {
typelast->NEXT = typetemp;
typelast = typetemp;
}
else {
typehead = typelast = typetemp;
}
switch(DataType) {
case INT_VARTYPE: typedefsize = typedefsize + 1;
typetemp->SIZE = 1;
break;
case BOOL_VARTYPE:
typetemp->SIZE = 1;
typedefsize = typedefsize + 1;
break;
case TYPEDEF_VARTYPE:
typetemp->SIZE = typetemp->GTypeDefPtr->SIZE;
typedefsize = typedefsize + typetemp->GTypeDefPtr->SIZE;
break;
}
}
;
GDefblock: DECL GDefList ENDDECL {
FILE *fp;
fp=fopen("sim.asm","a");
int i;
for(i=0;i<mem_count;i++) {
fprintf(fp,"PUSH R%d\n",regcount);
}
mem_count = 1;
regcount = 0;
fprintf(fp,"JMP MAIN\n");
fclose(fp);
}
;
GDefList :
|GDefList GDecl
;
GDecl: DataType GIdList ';'
;
DataType: INTEGER {
DataType = INT_VARTYPE;
gTypedef = NULL;
}
|BOOLEAN {
DataType = BOOL_VARTYPE;
gTypedef = NULL;
}
|ID {
gsymbol *gtemp = NULL;
gtemp = Glookup($1->NAME);
if(gtemp) {
if(gtemp->TYPE != TYPEDEF_VARTYPE)
yyerror("\nERR: Invalid Datatype for typedef element\n");
}
else {
yyerror("\nERR: Invalid Datatype for typedef element\n");
}
if(gtemp->GTypeDefType!=NULL)
yyerror("\nERR: Invalid Datatype for typedef element\n");
DataType = TYPEDEF_VARTYPE;
gTypedef = gtemp;
gtypeDef = gtemp;
}
;
GIdList: GId
|GIdList ',' GId
;
GId: ID '[' CONST ']' {
Ginstall($1->NAME,DataType,$3->VALUE, 0, NULL, NULL, gTypedef);// 4:binding, 5:Arglist 6:typedef
}
|ID '(' ArgList ')' {
argstruct *temp = arghead;
Ginstall($1->NAME, DataType, 0, label, arghead, NULL, gtypeDef); // name, type, size, binding, arglist
label++;
arghead = NULL; arglast = NULL;
}
|ID {
Ginstall($1->NAME,DataType,1, 0, NULL, NULL, gTypedef);
}
;
ArgList : { }
|Argument { }
|ArgList ';' Argument { }
;
Argument : Type ArgIdList
;
FArgDef :
| FArgList { InstallArg(arghead); }
;
FArgList : Argument { }
|ArgList ';' Argument { }
;
ArgIdList :
'&'ID {
Arginstall($2->NAME, datatype,PASSBYREF, gTypedef);
}
|ID {
Arginstall($1->NAME, datatype,PASSBYVAL, gTypedef);
}
|ArgIdList ',' '&'ID {
Arginstall($4->NAME, datatype,PASSBYREF, gTypedef);
}
|ArgIdList ',' ID {
Arginstall($3->NAME, datatype,PASSBYVAL, gTypedef);
}
;
FdefList :
| FdefList Fdef
;
Fdef : RType ID '(' FArgDef ')' '{' LDefblock Body '}' {
checkFunction(Datatype, $2->NAME, arghead, gtypedef);
arghead = NULL; arglast = NULL; gtypedef = NULL; gTypedef = NULL;
FILE *fp;
fp = fopen("sim.asm","a");
$2->Gentry = Glookup($2->NAME);
fprintf(fp,"f%d:\n",*($2->Gentry->BINDING));
fprintf(fp,"PUSH BP\n");
fprintf(fp,"MOV BP, SP\n");
int i;
for(i=1;i<mem_count;i++) {
fprintf(fp,"PUSH R%d\n",regcount);
}
fclose(fp);
traverse($8);
mem_count = 1;
regcount = 0;
lhead = NULL;
llast = NULL;
}
;
Type: INTEGER {
datatype = INT_VARTYPE;
gTypedef = NULL;
}
|BOOLEAN {
datatype = BOOL_VARTYPE;
gTypedef = NULL;
}
|ID {
gsymbol *gtemp = NULL;
gtemp = Glookup($1->NAME);
if(gtemp) {
if(gtemp->TYPE != TYPEDEF_VARTYPE)
yyerror("\nERR: Invalid Datatype for typedef element\n");
}
else {
yyerror("\nERR: Invalid Datatype for typedef element\n");
}
if(gtemp->GTypeDefType!=NULL)
yyerror("\nERR: Invalid Datatype for typedef element\n");
datatype = TYPEDEF_VARTYPE;
gTypedef = gtemp;
}
;
RType: INTEGER {
Datatype = INT_VARTYPE;
gtypedef = NULL;
}
|BOOLEAN {
Datatype = BOOL_VARTYPE;
gtypedef = NULL;
}
|ID {
gsymbol *gtemp = NULL;
gtemp = Glookup($1->NAME);
if(gtemp) {
if(gtemp->TYPE != TYPEDEF_VARTYPE)
yyerror("\nERR: Invalid Datatype for typedef element\n");
}
else {
yyerror("\nERR: Invalid Datatype for typedef element\n");
}
if(gtemp->GTypeDefType!=NULL)
yyerror("\nERR: Invalid Datatype for typedef element\n");
Datatype = TYPEDEF_VARTYPE;
gtypedef = gtemp;
}
;
Mainblock: INTEGER Main '(' ')' '{' LDefblock Body '}' {
FILE *fp = fopen("sim.asm","a");
fprintf(fp,"MAIN:\n");
fprintf(fp,"PUSH BP\n");
fprintf(fp,"MOV BP, SP\n");
int i;
for(i=1;i<mem_count;i++) {
fprintf(fp,"PUSH R%d\n",regcount);
}
fclose(fp);
traverse($7);
lhead = llast = NULL;
mem_count = 1;
}
;
Main: MAIN { Datatype = INT_VARTYPE;
main_flag = 1;
}
;
LDefblock: DECL LDefList ENDDECL
;
LDefList:
|LDefList LDecl ';'
;
LDecl: Type LIdList
;
LIdList: LId
|LIdList ',' LId
;
LId: ID { gsymbol *gtemp = NULL;
gtemp = Glookup($1->NAME);
if(gtemp) {
if(gtemp->TYPE == TYPEDEF_VARTYPE && gtemp->TYPEDEFLIST !=NULL)
yyerror("\nERR : You cannot reuse typedef variable name\n");
}
Linstall($1->NAME,datatype, gTypedef);
}
;
Body : BEGINING StmtList RetStmt END {
tnode *temp;
temp = treecreate(DUMMY_TYPE,DUMMY_NODETYPE,NULL,0,NULL,NULL,NULL,NULL, NULL, NULL, NULL);
temp->Ptr1 = $2;
temp->Ptr2 = $3;
$$ = temp;
}
;
StmtList: { $$ = NULL; }
| StmtList Stmt ';' {
tnode *temp;
temp = treecreate(DUMMY_TYPE,DUMMY_NODETYPE,NULL,0,NULL,NULL,NULL,NULL, NULL, NULL, NULL);
temp->Ptr1=$1;
temp->Ptr2=$2;
$$=temp;
}
;
exprlist:
|expr {
if(!exprhead) {
exprhead = exprlast = $1;
}
else {
exprlast->Ptr3 = $1;
exprlast = $1;
}
}
| exprlist ',' expr {
if(!exprhead) {
exprhead = exprlast = $3;
}
else {
exprlast->Ptr3 = $3;
exprlast = $3;
}
}
;
TypedefVar: ID DOT Variable {
lsymbol *ltemp;
gsymbol *gtemp;
ltemp = Llookup($1->NAME);
if(!ltemp) {
gtemp = Glookup($1->NAME) ;
$1->Gentry = gtemp;
if(gtemp && gtemp->TYPEDEFLIST==NULL) {
if((gtemp->SIZE)>1) {
yyerror("\nERR: Invalid array index\n");
}
if(gtemp->TYPE != TYPEDEF_VARTYPE) {
printf("\nERR:%s is not a typedef variable\n", $1->NAME);
yyerror("");
}
$1->Gentry = gtemp;
}
else {
printf("\nERR: You have not declared %s \n",$1->NAME);
yyerror("");
}
}
else {
$1->Lentry = ltemp;
if(ltemp->TYPE != TYPEDEF_VARTYPE) {
printf("\nERR:%s is not a typedef variable\n", $1->NAME);
yyerror("");
}
$1->Lentry = ltemp;
}
$1->Ptr4 = $3;
$$ = $1;
checkTypeDefn($1);
}
|ID '[' expr ']' DOT Variable {
gsymbol *gtemp;
tdatatype *typedefdatatype;
gtemp = Glookup($1->NAME);
if(gtemp && gtemp->TYPEDEFLIST==NULL) {
$1->Gentry = gtemp;
if(gtemp->TYPE != TYPEDEF_VARTYPE) {
printf("\nERR: %s is not a typedef variable\n", gtemp->NAME);
yyerror("");
}
if(gtemp->SIZE == 1)
yyerror("\nERR: Invalid array index\n");
if($3->TYPE ==INT_TYPE) {
if($3->NODETYPE == NUMBER_NODETYPE) {
if(($3->VALUE)>=($1->Gentry->SIZE))
yyerror("\nERR: Invalid Array Index\n");
}
}
else if($3->TYPE == BOOLEAN_TYPE)
yyerror("\nERR: invalid array index\n");
else if ($3->TYPE == VOID_TYPE){
if ($3->NODETYPE == ID_NODETYPE) {
if($3->Gentry) {
if($3->Gentry->TYPE == TYPEDEF_VARTYPE) {
//printf("\ncalling getTypeDefDataType 921\n");
typedefdatatype = getTypeDefDataType($3);
if(typedefdatatype->TYPE != INT_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
if($3->Gentry->TYPE == BOOL_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
else {
if($3->Lentry->TYPE == TYPEDEF_VARTYPE) {
//printf("\ncalling getTypeDefDataType 9211\n");
typedefdatatype = getTypeDefDataType($3);
if(typedefdatatype->TYPE != INT_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
if($3->Lentry->TYPE == BOOL_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
}
else {
yyerror("\nERR: Not id type right child\n");
}
}
}
else {
printf("\nERR : You have not declared %s \n",$1->NAME);
yyerror("");
}
$1->Ptr1 = $3;
$1->Ptr4 = $6;
$$ = $1;
checkTypeDefn($1);
}
;
Variable:
ID {
$$ = $1;
}
|ID DOT Variable {
$1->Ptr4 = $3;
$$ = $1;
}
;
expr: NOT expr {
checktype($2,$1,NULL);
$1->Ptr1 = $2;
$$ = $1;
}
|expr '+' expr { //printf("\n %d %d " , $1->VALUE, $3->VALUE);
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr '-' expr {
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr '*' expr {
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr '/' expr {
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr '%' expr {
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
| TypedefVar { $$ = $1; }
|expr LT expr {
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr LE expr {
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr GT expr {
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr GE expr {
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr EQ expr {
checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr NE expr { checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr AND expr { checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|expr OR expr { checktype($1,$2,$3);
$2->Ptr1=$1;$2->Ptr2=$3;
$$=$2;
}
|'(' expr ')' { $$=$2; }
|CONST { $$=$1;
}
| ID '(' exprlist ')' {
gsymbol *gtemp;
gtemp = Glookup($1->NAME);
if(!gtemp || gtemp->SIZE !=0)
yyerror("\nERR: Function not declared\n");
$1->ArgList = exprhead;
$1->Gentry = gtemp;
checktype(exprhead, $1, NULL);
exprhead=NULL;
exprlast=NULL;
$$ = $1;
}
| ID '[' expr ']' {
gsymbol *gtemp;
tdatatype *typedefdatatype;
gtemp = Glookup($1->NAME);
if(gtemp) {
$1->Gentry = gtemp;
if((gtemp->TYPE == TYPEDEF_VARTYPE)&&(gtemp->TYPEDEFLIST != NULL))
yyerror("\nERR: Referring a typedef variable\n");
if($3->TYPE == INT_TYPE) {
if($3->NODETYPE == NUMBER_NODETYPE) {
if(($3->VALUE)>=($1->Gentry->SIZE))
yyerror("\nERR: Invalid Array Index\n");
}
}
else if($3->TYPE==BOOLEAN_TYPE)
yyerror("\nERR: invalid array index\n");
else if ($3->TYPE == VOID_TYPE){
if ($3->NODETYPE == ID_NODETYPE) {
if($3->Gentry) {
if($3->Gentry->TYPE == TYPEDEF_VARTYPE) {
//printf("\ncalling getTypeDefDataType 9221\n");
typedefdatatype = getTypeDefDataType($3);
if(typedefdatatype->TYPE != INT_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
if($3->Gentry->TYPE==BOOL_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
else {
if($3->Lentry->TYPE == TYPEDEF_VARTYPE) {
//printf("\ncalling getTypeDefDataType 9321\n");
typedefdatatype = getTypeDefDataType($3);
if(typedefdatatype->TYPE != INT_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
if($3->Lentry->TYPE == BOOL_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
}
else {
yyerror("\nERR: Not id type right child\n");
}
}
}
else {
printf("\nERR : You have not declared %s \n",$1->NAME);
yyerror("");
}
$1->Ptr1 = $3;
$$ = $1;
}
|ID {
lsymbol *ltemp;
gsymbol *gtemp;
ltemp = Llookup($1->NAME);
if(!ltemp) {
gtemp = Glookup($1->NAME) ;
if(gtemp) {
$1->Gentry = gtemp;
if((gtemp->TYPE == TYPEDEF_VARTYPE)&&(gtemp->TYPEDEFLIST != NULL))
yyerror("\nERR: Referring a typedef variable\n");
if((gtemp->SIZE)>1) {
yyerror("\nERR: Invalid array index\n");
}
}
else {
printf("\nERR: You have not declared %s \n",$1->NAME);
yyerror("");
}
}
else {
$1->Lentry = ltemp;
}
$$ = $1;
}
|TRUE { $$=$1; }
|FALSE { $$=$1; }
;
endif: ELSE StmtList ENDIF { $$=$2; }
| ENDIF { $$=NULL; }
;
Stmt: READ '(' ID '[' expr ']' ')' {
gsymbol *gtemp;
tdatatype *typedefdatatype;
gtemp = Glookup($3->NAME);
if(gtemp) {
$3->Gentry = gtemp;
if(gtemp->TYPE == TYPEDEF_VARTYPE) {
yyerror("\nERR: Reading a typedef variable\n");
}
if($3->Gentry->TYPE == BOOL_VARTYPE) {
printf("\nERR : Trying to read value for boolean variable %s \n",$3->NAME);
yyerror("");
}
if($5->TYPE == BOOLEAN_TYPE)
yyerror("\nERR: invalid array index\n");
else if(($5->TYPE == VOID_TYPE) && ($5->NODETYPE == ID_NODETYPE)) {
if($5->Gentry) {
if($5->Gentry->TYPE == TYPEDEF_VARTYPE) {
//printf("\ncalling getTypeDefDataType 9251\n");
typedefdatatype = getTypeDefDataType($5);
if(typedefdatatype->TYPE != INT_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
if($5->Gentry->TYPE == BOOL_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
else {
if($5->Lentry->TYPE == TYPEDEF_VARTYPE) {
//printf("\ncalling getTypeDefDataType 9291\n");
typedefdatatype = getTypeDefDataType($5);
if(typedefdatatype->TYPE != INT_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
if($5->Lentry->TYPE == BOOL_VARTYPE)
yyerror("\nERR: invalid array index\n");
}
}
}
else {
printf("\nERR: You have not declared %s \n",$3->NAME);
yyerror("");
}
$3->Ptr1 = $5;
$1->Ptr1 = $3;
$$ = $1;
}
|READ '(' ID ')' {
lsymbol *ltemp;
gsymbol *gtemp;
ltemp = Llookup($3->NAME);
if(!ltemp) {
gtemp = Glookup($3->NAME) ;
if(gtemp) {
if(gtemp->TYPE == TYPEDEF_VARTYPE)
yyerror("\nERR: Reading a typedef variable\n");
$3->Gentry = gtemp;
if((gtemp->SIZE)>1) {
yyerror("\nERR: Invalid array index\n");
}
if(gtemp->TYPE != INT_VARTYPE) {
printf("ERR : Trying to read value for boolean variable %s \n",$3->NAME);
yyerror("");
}
}
else {
printf("\nERR: You have not declared %s ",$3->NAME);
yyerror("\n");
}
}
else {
$3->Lentry = ltemp;
if($3->Lentry->TYPE != INT_VARTYPE) {
printf("\nERR : Trying to read value for boolean variable %s \n",$3->NAME);
yyerror("");
}
}
$1->Ptr1 = $3;
$$ = $1;
}
|READ '(' TypedefVar ')' {
tdatatype *typedefdatatype;
//printf("\ncalling getTypeDefDataType 93121\n");
typedefdatatype = getTypeDefDataType($3);
if(typedefdatatype->TYPE != INT_VARTYPE)
yyerror("\nTrying to read value for invalid datatype\n");
$1->Ptr1 = $3;
$$ = $1;
}
|WRITE '(' expr ')' {
tdatatype *typedefdatatype;
if($3->TYPE == BOOLEAN_TYPE)
yyerror("ERR: Writing boolean value\n");
if($3->TYPE == VOID_TYPE) {
if($3->NODETYPE == ID_NODETYPE) {
if($3->Lentry) {
if($3->Lentry->TYPE == TYPEDEF_VARTYPE) {
//printf("\ncalling getTypeDefDataType 92131\n");
typedefdatatype = getTypeDefDataType($3);
if(typedefdatatype->TYPE != INT_VARTYPE)
yyerror("\nERR: Writing invalid value\n");
}
if($3->Lentry->TYPE == BOOL_VARTYPE) {
yyerror("ERR: Writing boolean value\n");
}
}
else if($3->Gentry) {
if(($3->Gentry->TYPE == TYPEDEF_VARTYPE)&&($3->Gentry->TYPEDEFLIST != NULL))
yyerror("\nERR: Referring a typedef variable\n");