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fixes #18579 (#18600)

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Andreas Rumpf 2021-07-27 14:32:56 +02:00 • committed by GitHub
commit 6dc34757b6
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2 changed files with 28 additions and 4 deletions
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6
lib/system/arc.nim
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@ -207,10 +207,8 @@ proc nimDecRefIsLast(p: pointer): bool {.compilerRtl, inl.} =
proc GC_unref*[T](x: ref T) =
## New runtime only supports this operation for 'ref T'.
if nimDecRefIsLast(cast[pointer](x)):
# XXX this does NOT work for virtual destructors!
`=destroy`(x[])
nimRawDispose(cast[pointer](x), T.alignOf)
var y {.cursor.} = x
`=destroy`(y)
proc GC_ref*[T](x: ref T) =
## New runtime only supports this operation for 'ref T'.