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fixes #12033 (#12039)

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Arne Döring 2019-08-26 20:14:21 +02:00 • committed by Andreas Rumpf
commit ae9bb4474b
2 changed files with 15 additions and 2 deletions
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4
compiler/semstmts.nim
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@ -1904,6 +1904,10 @@ proc semProcAux(c: PContext, n: PNode, kind: TSymKind,
discard
popProcCon(c)
else:
if s.kind in {skProc, skFunc} and s.typ[0] != nil and s.typ[0].kind == tyUntyped:
# `auto` is represented as `tyUntyped` at this point in compilation.
localError(c.config, n[paramsPos][0].info, "return type 'auto' cannot be used in forward declarations")
if s.kind == skMethod: semMethodPrototype(c, s, n)
if proto != nil: localError(c.config, n.info, errImplOfXexpected % proto.name.s)
if {sfImportc, sfBorrow, sfError} * s.flags == {} and s.magic == mNone: