jyapayne/Nim
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fixes #712

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This commit is contained in:
Araq 2014-02-14 02:29:19 +01:00
commit e210b049e9
2 changed files with 22 additions and 1 deletions
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compiler/sem.nim
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@ -120,7 +120,8 @@ proc commonType*(x, y: PType): PType =
if a.kind == tyObject and b.kind == tyObject:
result = commonSuperclass(a, b)
# this will trigger an error later:
if result.isNil: return x
if result.isNil or result == a: return x
if result == b: return y
if k != tyNone:
let r = result
result = newType(k, r.owner)