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3eb3e6b9a3
* ORC refactoring in preparation for further changes (=dispose must die) * ORC: embrace =destroy, avoid =dispose * ORC: no need for =dispose * closes #18421
57 lines
1.4 KiB
Nim
57 lines
1.4 KiB
Nim
#
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#
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# Nim's Runtime Library
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# (c) Copyright 2019 Andreas Rumpf
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#
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# See the file "copying.txt", included in this
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# distribution, for details about the copyright.
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#
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# Cell seqs for cyclebreaker and cyclicrefs_v2.
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type
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CellTuple[T] = (T, PNimTypeV2)
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CellArray[T] = ptr UncheckedArray[CellTuple[T]]
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CellSeq[T] = object
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len, cap: int
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d: CellArray[T]
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proc add[T](s: var CellSeq[T], c: T; t: PNimTypeV2) {.inline.} =
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if s.len >= s.cap:
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s.cap = s.cap * 3 div 2
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when compileOption("threads"):
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var d = cast[CellArray[T]](allocShared(uint(s.cap * sizeof(CellTuple[T]))))
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else:
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var d = cast[CellArray[T]](alloc(s.cap * sizeof(CellTuple[T])))
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copyMem(d, s.d, s.len * sizeof(CellTuple[T]))
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when compileOption("threads"):
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deallocShared(s.d)
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else:
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dealloc(s.d)
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s.d = d
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# XXX: realloc?
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s.d[s.len] = (c, t)
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inc(s.len)
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proc init[T](s: var CellSeq[T], cap: int = 1024) =
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s.len = 0
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s.cap = cap
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when compileOption("threads"):
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s.d = cast[CellArray[T]](allocShared(uint(s.cap * sizeof(CellTuple[T]))))
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else:
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s.d = cast[CellArray[T]](alloc(s.cap * sizeof(CellTuple[T])))
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proc deinit[T](s: var CellSeq[T]) =
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if s.d != nil:
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when compileOption("threads"):
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deallocShared(s.d)
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else:
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dealloc(s.d)
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s.d = nil
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s.len = 0
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s.cap = 0
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proc pop[T](s: var CellSeq[T]): (T, PNimTypeV2) =
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result = s.d[s.len-1]
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dec s.len
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