#ifndef __SCC_SEMA_SYMTAB_H__
#define __SCC_SEMA_SYMTAB_H__

#include <scc_ast.h>
#include <scc_utils.h>

typedef struct scc_parser_scope {
    scc_hashtable_t symbols;
    struct scc_parser_scope *parent;
} scc_sema_scope_t;

typedef struct {
    scc_sema_scope_t root_scope;
    scc_sema_scope_t *current_scope;
} scc_sema_symtab_t;

void scc_sema_symtab_init(scc_sema_symtab_t *symtab);
void scc_sema_symtab_drop(scc_sema_symtab_t *symtab);

void scc_sema_symtab_enter_scope(scc_sema_symtab_t *symtab);
void scc_sema_symtab_leave_scope(scc_sema_symtab_t *symtab);
scc_ast_node_t *scc_sema_symtab_add_symbol(scc_sema_symtab_t *symtab,
                                           const char *name,
                                           scc_ast_node_t *ast_node_ref);
scc_ast_node_t *scc_sema_symtab_lookup_symbol(scc_sema_symtab_t *symtab,
                                              const char *name);

#endif /* __SCC_SEMA_SYMTAB_H__ */