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31 lines
693 B
Plaintext
31 lines
693 B
Plaintext
/datum
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var/weakref
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/datum/Destroy()
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weakref = null // Clear this reference to ensure it's kept for as brief duration as possible.
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. = ..()
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//obtain a weak reference to a datum
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/proc/weakref(datum/D)
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if(D.gcDestroyed)
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return
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if(!D.weakref)
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D.weakref = new /datum/weakref(D)
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return D.weakref
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/datum/weakref
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var/ref
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/datum/weakref/New(datum/D)
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ref = "\ref[D]"
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/datum/weakref/Destroy()
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// A weakref datum should not be manually destroyed as it is a shared resource,
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// rather it should be automatically collected by the BYOND GC when all references are gone.
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return 0
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/datum/weakref/proc/resolve()
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var/datum/D = locate(ref)
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if(D && D.weakref == src)
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return D
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return null |