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newSeqOfCap: skip initialization step for non-GC-ed data

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This commit is contained in:
Andreas Rumpf 2017-09-24 01:22:48 +02:00
commit e5cb1a2dd5
1 changed files with 5 additions and 1 deletions
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6
lib/system/mmdisp.nim
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@ -564,7 +564,11 @@ else:
when not declared(nimNewSeqOfCap): when not declared(nimNewSeqOfCap):
proc nimNewSeqOfCap(typ: PNimType, cap: int): pointer {.compilerproc.} = proc nimNewSeqOfCap(typ: PNimType, cap: int): pointer {.compilerproc.} =
result = newObj(typ, addInt(mulInt(cap, typ.base.size), GenericSeqSize)) let s = addInt(mulInt(cap, typ.base.size), GenericSeqSize)
when declared(newObjNoInit):
result = if ntfNoRefs in typ.base.flags: newObjNoInit(typ, s) else: newObj(typ, s)
else:
result = newObj(typ, s)
cast[PGenericSeq](result).len = 0 cast[PGenericSeq](result).len = 0
cast[PGenericSeq](result).reserved = cap cast[PGenericSeq](result).reserved = cap