#pragma once

#define DEF_SCOPED_TYPE(NAME, TYPE, UNOCCUPIED, CLEANUP_FN)     \
  static inline TYPE _scoped_##NAME##_unoccupied(void) {        \
    return (UNOCCUPIED);                                        \
  }                                                             \
  static inline void _scoped_##NAME##_cleanup(TYPE *_val) {     \
    CLEANUP_FN(*_val);                                          \
    *_val = (UNOCCUPIED);                                       \
  }                                                             \
  static inline void _scoped_##NAME##_cleanup_raw(void *_val) { \
    _scoped_##NAME##_cleanup((TYPE *)_val);                     \
  }                                                             \
  static inline TYPE _scoped_##NAME##_release(TYPE *_val) {     \
    TYPE _released = *_val;                                     \
    *_val = (UNOCCUPIED);                                       \
    return _released;                                           \
  }

#define SCOPED(NAME, TYPE, VAL) \
  TYPE VAL __attribute__((cleanup(_scoped_##NAME##_cleanup_raw))) = _scoped_##NAME##_unoccupied()