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fixes #3550

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Araq 2015-11-18 12:32:46 +01:00
commit 698b1fc954
2 changed files with 7 additions and 2 deletions
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7
compiler/cgmeth.nim
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@ -18,7 +18,12 @@ proc genConv(n: PNode, d: PType, downcast: bool): PNode =
var source = skipTypes(n.typ, abstractPtrs) var source = skipTypes(n.typ, abstractPtrs)
if (source.kind == tyObject) and (dest.kind == tyObject): if (source.kind == tyObject) and (dest.kind == tyObject):
var diff = inheritanceDiff(dest, source) var diff = inheritanceDiff(dest, source)
if diff == high(int): internalError(n.info, "cgmeth.genConv") if diff == high(int):
# see bug #3550 which triggers it. XXX This is a hack but I don't know yet
# how the real fix looks like:
localError(n.info, "there is no subtype relation between " &
typeToString(d) & " and " & typeToString(n.typ))
#internalError(n.info, "cgmeth.genConv")
if diff < 0: if diff < 0:
result = newNodeIT(nkObjUpConv, n.info, d) result = newNodeIT(nkObjUpConv, n.info, d)
addSon(result, n) addSon(result, n)

2
todo.txt
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@ -1,7 +1,7 @@
essential for 1.0 essential for 1.0
================= =================
- document special cased varargs[untyped] and varargs[typed] - introduce newSeqOfCap(10)
- The remaining bugs of the lambda lifting pass that is responsible to enable - The remaining bugs of the lambda lifting pass that is responsible to enable
closures and closure iterators need to be fixed. closures and closure iterators need to be fixed.
- ``concept`` needs to be refined, a nice name for the feature is not enough. - ``concept`` needs to be refined, a nice name for the feature is not enough.