#ifndef __SMCC_SYMTABL_H__
#define __SMCC_SYMTABL_H__

#include <lib/core.h>
#include <lib/utils/ds/hashtable.h>
#include <lib/utils/strpool/strpool.h>

// FIXME 架构上可能有更好的方式解决

typedef struct symtab_key {
    const char* strp_name;
    int uid;
} symtab_key_t;

typedef struct scope {
    int uid;
    struct scope* parent;
    hash_table_t table;
} scope_t;

typedef struct symtab {
    hash_table_t global_table;
    hash_table_t local_table;
    scope_t* cur_scope;
    int gid; // global id for generating unique scope id
} symtab_t;

void init_symtab(symtab_t* symtab);
void symtab_destroy(symtab_t* symtab);

void symtab_enter_scope(symtab_t* symtab);
void symtab_leave_scope(symtab_t* symtab);

void* symtab_get(symtab_t* symtab, symtab_key_t* key);

// WARNING key and val need you save, especially val
void* symtab_add(symtab_t* symtab, symtab_key_t* key, void* val);

#endif