diff options
Diffstat (limited to 'compiler/cgmeth.nim')
| -rw-r--r-- | compiler/cgmeth.nim | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/compiler/cgmeth.nim b/compiler/cgmeth.nim index 3c2c51b76..312afec1a 100644 --- a/compiler/cgmeth.nim +++ b/compiler/cgmeth.nim @@ -18,8 +18,10 @@ proc genConv(n: PNode, d: PType, downcast: bool): PNode = var source = skipTypes(n.typ, abstractPtrs) if (source.kind == tyObject) and (dest.kind == tyObject): var diff = inheritanceDiff(dest, source) - if diff == high(int): internalError(n.info, "cgmeth.genConv") - if diff < 0: + if diff == high(int): + # no subtype relation, nothing to do + result = n + elif diff < 0: result = newNodeIT(nkObjUpConv, n.info, d) addSon(result, n) if downcast: internalError(n.info, "cgmeth.genConv: no upcast allowed") |