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ARC now capable of custom extra alignment. Ref, closure and seq support. (#15697)

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cooldome 2020-10-28 13:00:49 +00:00 • committed by GitHub
commit 0956a99537
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11 changed files with 273 additions and 77 deletions
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lib/core/typeinfo.nim
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@ -108,7 +108,7 @@ when not defined(gcDestructors):
proc newSeq(typ: PNimType, len: int): pointer {.importCompilerProc.}
proc objectInit(dest: pointer, typ: PNimType) {.importCompilerProc.}
else:
proc nimNewObj(size: int): pointer {.importCompilerProc.}
proc nimNewObj(size, align: int): pointer {.importCompilerProc.}
proc newSeqPayload(cap, elemSize, elemAlign: int): pointer {.importCompilerProc.}
proc prepareSeqAdd(len: int; p: pointer; addlen, elemSize, elemAlign: int): pointer {.
importCompilerProc.}
@ -178,7 +178,7 @@ proc invokeNew*(x: Any) =
## performs ``new(x)``. `x` needs to represent a ``ref``.
assert x.rawType.kind == tyRef
when defined(gcDestructors):
cast[ppointer](x.value)[] = nimNewObj(x.rawType.base.size)
cast[ppointer](x.value)[] = nimNewObj(x.rawType.base.size, x.rawType.base.align)
else:
var z = newObj(x.rawType, x.rawType.base.size)
genericAssign(x.value, addr(z), x.rawType)