scarlett/compiler-the-translators
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added print statements to gramamr rules to check for debugging

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Partho Bhattacharya
2025-02-28 15:42:43 -05:00
parent 2808a75dc9
commit 2695334db9
2 changed files with 49 additions and 16 deletions
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65
grammar.y
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@ -39,7 +39,7 @@
%left ASSIGN
%token <words> ID 101
%token T_INTEGER
%token T_INTEGER 201
%token T_ADDRESS 202
%token T_BOOLEAN 203
%token T_CHARACTER 204
@ -120,20 +120,51 @@ idlist:
;
sblock:
L_BRACE /*{st = CreateScope(st,1,1);}*/ statement_list /*{st = getParent(st);}*/ R_BRACE
| L_BRACE /*{st = CreateScope(st,1,1);}*/ dblock statement_list /*{st = getParent(st);}*/ R_BRACE
L_BRACE {st = CreateScope(st,1,1);} statement_list {st = getParent(st);} R_BRACE
| L_BRACE {st = CreateScope(st,1,1);} dblock statement_list {st = getParent(st);} R_BRACE
;
dblock:
L_BRACKET declaration_list R_BRACKET;
declaration_list:
declaration /*{CreateEntry(st,cur_type,cur_value);}*/ SEMI_COLON declaration_list
| declaration //{CreateEntry(st,cur_type,cur_value);}
declaration
{printf(
"declaration list a rule encountered");
//CreateEntry(st,cur_type,cur_value);
}
SEMI_COLON declaration_list
| declaration
{printf(
"declaration rule b encountered");
//CreateEntry(st,cur_type,cur_value);
}
;
declaration:
ID COLON ID //{cur_value = strdup($1);cur_type = strdup($3);}
ID COLON ID {
printf("declaration rule encountered");
// if(cur_value != NULL){
// char* delete1 = cur_value;
printf("delete1 var assigned to cur_value");
// free(delete1);
printf("delete1 var freed");
// }
// if(cur_type != NULL){
// char* delete2 = cur_type;
// free(delete2);}
// int len = strlen($1);
printf("length determined");
// cur_value = malloc(len + 1);
printf("space allocated");
// strcpy(cur_value, $1);
printf("string copied over");
// len = strlen($3);
// cur_type = malloc(len + 1);
// strcpy(cur_type, $3);
// printf("value var is %s type var is %s\n",cur_value,cur_type);
}
| types COLON ID
;
@ -220,25 +251,27 @@ types:
%%
void yyerror(const char *err) {
fprintf(stderr, "ERROR: %s at token %s at line number %d,column number %d\n", err,yytext,line_number,column_number);
// fprintf(stderr, "ERROR: %s at token %s at line number %d,column number %d\n", err,yytext,line_number,column_number);
}
int main() {
//cur_value = NULL;
//cur_type = NULL;
char *str = strdup("taco");
cur_value = NULL;
cur_type = NULL;
token_tracker = 1;
st=CreateScope(NULL,1,1);
int a;
while ((a = yyparse()) != EOF){
token_tracker++;
//int a;
yyparse();
//while ((a = yyparse() != EOF){
// token_tracker++;
//printf("%d = a: yytext = %s: yychar = %d, token number: %d\n", a, yytext, yychar,token_tracker);
if(yytext[0] == '\n'){
//if(yytext[0] == '\n'){
FILE* f = fdopen(1,"w");
print_symbol_table(getAncestor(st),f);
fclose(f);
break;
}
}
// break;
//}
//}
return 0;
}