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fixes #15511 (#15524)

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Andreas Rumpf 2020-10-08 17:09:28 +02:00 • committed by GitHub
commit 538a57a522
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2 changed files with 10 additions and 1 deletions
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4
compiler/injectdestructors.nim
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@ -411,7 +411,9 @@ proc passCopyToSink(n: PNode; c: var Con; s: var Scope): PNode =
"if possible, rearrange your program's control flow to prevent it") % $n)
else:
if c.graph.config.selectedGC in {gcArc, gcOrc}:
assert(not containsGarbageCollectedRef(n.typ))
assert(not containsManagedMemory(n.typ))
if n.typ.skipTypes(abstractInst).kind in {tyOpenArray, tyVarargs}:
localError(c.graph.config, n.info, "cannot create an implicit openArray copy to be passed to a sink parameter")
result.add newTree(nkAsgn, tmp, p(n, c, s, normal))
# Since we know somebody will take over the produced copy, there is
# no need to destroy it.