qcsrc/lib/Registry.qh

   1 #ifndef REGISTRY_H
   2 #define REGISTRY_H
   3
   4 #include "OO.qh"
   5
   6 #define REGISTER_INIT(ns, id) [[accumulate]] void Register_##ns##_##id##_init(entity this)
   7 #define REGISTER_INIT_POST(ns, id) [[accumulate]] void Register_##ns##_##id##_init_post(entity this)
   8
   9 #define REGISTER(initfunc, ns, array, counter, id, fld, inst)   \
  10     entity ns##_##id;                                           \
  11     REGISTER_INIT(ns, id) { }                                   \
  12     REGISTER_INIT_POST(ns, id) { }                              \
  13     .entity enemy; /* internal next pointer */                  \
  14     void Register_##ns##_##id() {                               \
  15         entity this = inst;                                     \
  16         ns##_##id = this;                                       \
  17         this.fld = counter;                                     \
  18         array[counter++] = this;                                \
  19         if (!array##_first)    array##_first = this;            \
  20         if ( array##_last)     array##_last.enemy = this;       \
  21         array##_last = this;                                    \
  22         Register_##ns##_##id##_init(this);                      \
  23         Register_##ns##_##id##_init_post(this);                 \
  24     }                                                           \
  25     ACCUMULATE_FUNCTION(initfunc, Register_##ns##_##id)         \
  26     REGISTER_INIT(ns, id)
  27
  28 void __static_init() { }
  29 #define static_init() CALL_ACCUMULATED_FUNCTION(__static_init)
  30 #define REGISTER_REGISTRY(func) ACCUMULATE_FUNCTION(__static_init, func)
  31
  32 #define STATIC_INIT(func) \
  33     void _static_##func(); \
  34     ACCUMULATE_FUNCTION(__static_init, _static_##func) \
  35     void _static_##func()
  36
  37 #endif