//defines that give qdel hints. these can be given as a return in destory() or by calling

#define QDEL_HINT_QUEUE         0 //qdel should queue the object for deletion.
#define QDEL_HINT_LETMELIVE     1 //qdel should let the object live after calling destory.
#define QDEL_HINT_IWILLGC       2 //functionally the same as the above. qdel should assume the object will gc on its own, and not check it.
#define QDEL_HINT_HARDDEL       3 //qdel should assume this object won't gc, and queue a hard delete using a hard reference.
#define QDEL_HINT_HARDDEL_NOW   4 //qdel should assume this object won't gc, and hard del it post haste.
#define QDEL_HINT_FINDREFERENCE 5 //functionally identical to QDEL_HINT_QUEUE if TESTING is not enabled in _compiler_options.dm.
								  //if TESTING is enabled, qdel will call this object's find_references() verb.
//defines for the gc_destroyed var

#define GC_QUEUE_PREQUEUE 1
#define GC_QUEUE_CHECK 2
#define GC_QUEUE_HARDDELETE 3
#define GC_QUEUE_COUNT 3 //increase this when adding more steps.

#define GC_QUEUED_FOR_QUEUING       -1
#define GC_QUEUED_FOR_HARD_DEL      -2
#define GC_CURRENTLY_BEING_QDELETED -3

#define QDELING(X) (X.gc_destroyed)
#define QDELETED(X) (!X || X.gc_destroyed)
#define QDESTROYING(X) (!X || X.gc_destroyed == GC_CURRENTLY_BEING_QDELETED)

//Qdel helper macros.
#define QDEL_IN(item, time) addtimer(CALLBACK(GLOBAL_PROC, .proc/qdel, item), time, TIMER_STOPPABLE)
#define QDEL_IN_CLIENT_TIME(item, time) addtimer(CALLBACK(GLOBAL_PROC, .proc/qdel, item), time, TIMER_STOPPABLE | TIMER_CLIENT_TIME)
#define QDEL_NULL(item) qdel(item); item = null
#define QDEL_NULL_LIST QDEL_LIST_NULL
#define QDEL_LIST_NULL(x) if(x) { for(var/y in x) { qdel(y) } ; x = null }
#define QDEL_LIST(L) if(L) { for(var/I in L) qdel(I); L.Cut(); }
#define QDEL_LIST_IN(L, time) addtimer(CALLBACK(GLOBAL_PROC, .proc/______qdel_list_wrapper, L), time, TIMER_STOPPABLE)
#define QDEL_LIST_ASSOC(L) if(L) { for(var/I in L) { qdel(L[I]); qdel(I); } L.Cut(); }
#define QDEL_LIST_ASSOC_VAL(L) if(L) { for(var/I in L) qdel(L[I]); L.Cut(); }

/proc/______qdel_list_wrapper(list/L) //the underscores are to encourage people not to use this directly.
	QDEL_LIST(L)