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mitigates #12815 (#18557)

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* mitigates #12815

* Update doc/nimc.rst

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>
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Andreas Rumpf 2021-07-22 11:59:21 +02:00 • committed by GitHub
commit 0c4582c665
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4 changed files with 26 additions and 5 deletions
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8
compiler/sempass2.nim
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@ -1173,8 +1173,12 @@ proc track(tracked: PEffects, n: PNode) =
"implicit conversion to 'cstring' from a non-const location: $1; this will become a compile time error in the future" %
$n[1])
if n.typ.skipTypes(abstractInst).kind == tyEnum:
message(tracked.config, n.info, warnAnyEnumConv, "enum conversion: $1" % $n[1])
let t = n.typ.skipTypes(abstractInst)
if t.kind == tyEnum:
if tfEnumHasHoles in t.flags:
message(tracked.config, n.info, warnHoleEnumConv, "conversion to enum with holes is unsafe: $1" % $n)
else:
message(tracked.config, n.info, warnAnyEnumConv, "enum conversion: $1" % $n)
if n.len == 2:
track(tracked, n[1])