#ifndef __SCC_SEMA_H__
#define __SCC_SEMA_H__

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

typedef struct scc_sema_ctx scc_sema_ctx_t;
/**
 * @brief 语义分析回调函数类型
 */
typedef void (*scc_sema_callback_t)(scc_sema_ctx_t *context,
                                    scc_ast_node_kind_t node_type, void *node);

typedef scc_ast_qual_type_t *(*scc_sema_got_type_t)(scc_sema_ctx_t *context,
                                                    const char *name);

typedef struct scc_label_scope {
    int function_scope_depth;
    scc_hashtable_t labels;           // 标签名 -> scc_ast_stmt_t* (LABEL节点)
    scc_ast_stmt_vec_t pending_gotos; // 尚未找到目标的goto语句
} scc_sema_label_scope_t;

/**
 * @brief 语义分析回调集合
 */
struct scc_sema_ctx {
    scc_sema_callback_t on_decl;
    scc_sema_callback_t on_stmt;
    scc_sema_callback_t on_expr;
    scc_sema_callback_t on_type;
    scc_sema_got_type_t got_type;
    scc_ast_ctx_t *ast_ctx;

    scc_ast_stmt_vec_t break_stack;
    scc_ast_stmt_vec_t continue_stack;
    scc_sema_label_scope_t label_scope;
    void *context;
};

void scc_sema_init(scc_sema_ctx_t *sema_ctx, scc_ast_ctx_t *ast_ctx);
void scc_sema_drop(scc_sema_ctx_t *sema_ctx);

#endif /* __SCC_SEMA_H__ */