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c25459d938
Timers, signals, and components need to know when the thing they're attached to is getting destroyed or bad things happen. Since any datum can make use of these every destroy needs to call parent.
30 lines
736 B
Plaintext
30 lines
736 B
Plaintext
/proc/WEAKREF(datum/input)
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if(istype(input) && !QDELETED(input))
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if(istype(input, /datum/weakref))
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return input
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if(!input.weak_reference)
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input.weak_reference = new /datum/weakref(input)
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return input.weak_reference
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/datum/proc/create_weakref() //Forced creation for admin proccalls
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return WEAKREF(src)
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/datum/weakref
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var/reference
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/datum/weakref/New(datum/thing)
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reference = REF(thing)
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/datum/weakref/Destroy(force)
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if(!force)
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return QDEL_HINT_LETMELIVE //Let BYOND autoGC thiswhen nothing is using it anymore.
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var/datum/target = resolve()
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target?.weak_reference = null
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return ..()
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/datum/weakref/proc/resolve()
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var/datum/D = locate(reference)
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return (!QDELETED(D) && D.weak_reference == src) ? D : null
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