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fixes #4673

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This commit is contained in:
Andreas Rumpf 2016-09-01 13:01:22 +02:00
commit 3a13706d7d
19 changed files with 74 additions and 31 deletions
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3
compiler/aliases.nim
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@ -46,7 +46,8 @@ proc isPartOfAux(a, b: PType, marker: var IntSet): TAnalysisResult =
if compareTypes(a, b, dcEqIgnoreDistinct): return arYes
case a.kind
of tyObject:
result = isPartOfAux(a.sons[0], b, marker)
if a.sons[0] != nil:
result = isPartOfAux(a.sons[0].skipTypes(skipPtrs), b, marker)
if result == arNo: result = isPartOfAux(a.n, b, marker)
of tyGenericInst, tyDistinct:
result = isPartOfAux(lastSon(a), b, marker)