#ifndef __SPL_SEMA_H__
#define __SPL_SEMA_H__

#include "spl_ast.h"
#include "spl_type.h"

typedef usize spl_scope_id_t; /* 0 is error */
typedef struct {
    spl_scope_id_t parent;
    MAP(const char *, spl_type_id_t) symbols;
} spl_scope_node_t;
typedef VEC(spl_scope_node_t) spl_scope_node_vec_t;

typedef struct {
    spl_ast_t *ast;
    spl_type_t type;
    spl_scope_node_vec_t scopes;
    spl_scope_id_t root_scope;
    spl_scope_id_t current_scope;
    int error_count;
} spl_sema_t;

void spl_sema_init(spl_sema_t *sema);
void spl_sema_drop(spl_sema_t *sema);
void spl_sema_run(spl_sema_t *sema);

spl_scope_id_t spl_sema_scope_alloc(spl_sema_t *sema);
bool spl_sema_scope_insert(spl_sema_t *sema, spl_scope_id_t id, const char *symbol_name,
                           spl_type_id_t symbol_val);
typedef VEC(const char *) spl_symbol_path_t;
spl_type_id_t spl_sema_scope_find(spl_sema_t *sema, spl_symbol_path_t path);

#endif /* __SPL_SEMA_H__ */