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https://github.com/CHOMPStation2/CHOMPStation2.git
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66e9d9cfdf
Inspired by https://github.com/tgstation/tgstation/pull/29636 Also consolidated some sideways overridden /datum/Delete() here to reduce proc-call overhead.
26 lines
559 B
Plaintext
26 lines
559 B
Plaintext
//obtain a weak reference to a datum
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/proc/weakref(datum/D)
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if(!istype(D))
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return
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if(QDELETED(D))
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return
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if(!D.weakref)
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D.weakref = new/weakref(D)
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return D.weakref
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/weakref
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var/ref
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/weakref/New(datum/D)
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ref = "\ref[D]"
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/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 QDEL_HINT_LETMELIVE
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/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 |