int main() {
int noRoot = 0; /* 0 means we will have a root */
symboltable_t *symtab;
list = NULL;
/* Build the tree */
error_out = stderr;
noRoot = yyparse();
if (parseError && (!noRoot))
fprintf(stderr, "WARNING: There were %d parse errors.\nParse tree may be ill-formed.\n", parseError);
if (noRoot)
fprintf(stderr, "Parsing reached fatal error. No AST was constructed\n");
/* Set up the symbol tree */
symtab = create_symboltable();
symtab = build_symboltable(symtab, root, root);
print_symtab(symtab);
print_ast(stdout, root, 0);
code_gen(root, symtab);
print_quad_list(stdout, list);
return 0;
}
int main() {
FILE *ys = fopen("./sample.ys", "w");
int noRoot = 0; /* 0 means we will have a root */
symboltable_t *symtab;
list = NULL;
/* Build the tree */
error_out = stderr;
noRoot = yyparse();
if (parseError && (!noRoot))
fprintf(stderr, "WARNING: There were %d parse errors.\nParse tree may be ill-formed.\n", parseError);
if (noRoot)
fprintf(stderr, "Parsing reached fatal error. No AST was constructed\n");
/* Set up the symbol tree */
symtab = create_symboltable();
symtab = build_symboltable(symtab, root, root);
typecheck_ast(symtab, root);
int retval = typecheck_ast(symtab, root);
print_checked_ast(stdout, root, 0);
if (retval != 0) {
fprintf(stderr, "There were %d errors encountered in the parse tree. Aborting.\n", retval);
return 1;
}
print_ast(stdout, root, 0);
print_symtab(symtab);
code_gen(root, symtab);
print_symtab(symtab);
print_quad_list(stdout, list);
generate_assembly(ys, list, symtab);
return 0;
}
int main(int argc, char** argv)
{
int print_t = 0;
int print_v = 0;
int print_f = 0;
int i;
int rc;
g_type = (char*) malloc(10);
symboltable tracking_table = create_symboltable();
flat_symtab var_table = create_flat_symtab();
func_table function_table = create_functable();
if (argc < 2){
printf("usage: scan filename\n");
return -1;
}
FILE* in = fopen(argv[1], "r");
if (in == NULL){
printf("file not found\n");
return -1;
}
for(i = 2; i < argc; i++){
if(strcmp(argv[i], "-t") == 0){
print_t = 1;
}else if (strcmp(argv[i], "-v") == 0){
print_v = 1;
}else if (strcmp(argv[i], "-f") == 0){
print_f = 1;
}else {
printf("acceptable options are -t, -v and -f\n");
}
}
// set input source
yyset_in(in);
// parse input
rc = yyparse();
if (rc == 0){
printf("succeeded parsing input.\n");
}
else{
printf("--- error --- failed parsing input: error at line %d, abort.\n", lineNumber);
return -1;
}
// build symbol table
build_symtab(tracking_table, var_table, function_table, root);
if (sym_error != 0){
printf("--- error --- errors found building symboltable, abort. \n");
return -1;
}
// type check
rc = type_check(var_table, function_table, root);
if (rc != 0){
printf("--- error --- errors found in type checking, abort.\n");
// return -1;
}
// print data structures
if(print_t == 1)
print_ast(root, 0);
if(print_v == 1)
print_flat_table(var_table);
if(print_f == 1)
print_func_table(function_table);
return 0;
}