feat: implement objects and classes

include/compiler/utils/fzl_symtable.h

@@ -10,7 +10,8 @@ typedef enum
 {
   FZL_SYMTABLE_RESULT_OK,
   FZL_SYMTABLE_RESULT_ERR,
-  FZL_SYMTABLE_RESULT_EXISTS
+  FZL_SYMTABLE_RESULT_EXISTS,
+  FZL_SYMTABLE_RESULT_NOT_OBJECT
 } fzl_symtable_res_t;
 
 // Symbols table entry descriptor
@@ -19,6 +20,8 @@ typedef struct
   char *name;
   fzl_type_t type;
   size_t ip;
+
+  char *classname;
 } fzl_sym_t;
 
 // Symbols table descriptor
@@ -37,6 +40,10 @@ fzl_symtable_t *fzl_mksymt();
 fzl_symtable_res_t fzl_symt_put(fzl_symtable_t *symt, char *name,
                                 fzl_type_t type, uint64_t ip);
 
+// Assign class name to object type
+fzl_symtable_res_t fzl_symt_setobjclass(fzl_symtable_t *symt, char *name,
+                                        char *classname);
+
 // Get entry from specified symtable
 bool fzl_symt_get(fzl_symtable_t *symt, char *name, fzl_sym_t *res);