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37b0b53f1c
* Add better weakref support to qdel (#56206) * Add better weakref support to qdel * change request * Add better weakref support to qdel Co-authored-by: spookydonut <github@spooksoftware.com>
32 lines
751 B
Plaintext
32 lines
751 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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var/datum/target = resolve()
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qdel(target)
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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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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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