feat: finished variables declaration / assign

src/vm/main.c

@@ -9,6 +9,7 @@ typedef struct
 {
   char *filepath;
   bool help;
+  bool debug;
 } run_args_t;
 
 void print_hint()
@@ -28,8 +29,9 @@ run_args_t *parse_args(int argc, char **argv)
   }
 
   run_args_t *args = malloc(sizeof(run_args_t));
-  args->filepath = NULL;
-  args->help = false;
+  args->filepath   = NULL;
+  args->help       = false;
+  args->debug      = false;
 
   for (size_t i = 0; i < argc; i++)
   {
@@ -41,6 +43,8 @@ run_args_t *parse_args(int argc, char **argv)
       args->help = true;
       return args;
     }
+    else if (strcmp(argv[i], "-d") == 0 || strcmp(argv[i], "--debug") == 0)
+      args->debug = true;
     else
     {
       printf("Error: unknown flag '%s'.\n", argv[i]);
@@ -79,11 +83,16 @@ int main(int argc, char **argv)
     return -1;
   }
 
-  int result = fzl_vm_run(vm);
-  if (result != 0)
+  if (args->debug)
+    fzl_vm_print_ops(vm);
+  else
   {
-    printf("Error: %s\n", fzl_vm_geterror());
-    return -1;
+    int result = fzl_vm_run(vm);
+    if (result != 0)
+    {
+      printf("Error: %s\n", fzl_vm_geterror());
+      return -1;
+    }
   }
 
   free(args);