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issue a warning for ptr to cstring conversion[backport] (#20814)

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* issue a warning for ptr to cstring conversion[backport]

* add a changelog
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ringabout 2022-11-12 02:32:33 +08:00 • committed by GitHub
commit 8e1181bde5
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compiler/sempass2.nim
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@ -1238,6 +1238,11 @@ proc track(tracked: PEffects, n: PNode) =
message(tracked.config, n.info, warnCstringConv,
"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 == tyCstring and
isCharArrayPtr(n[1].typ, true):
message(tracked.config, n.info, warnPtrToCstringConv,
$n[1].typ)
let t = n.typ.skipTypes(abstractInst)
if t.kind == tyEnum: