diff options
Diffstat (limited to 'compiler/semmagic.nim')
| -rw-r--r-- | compiler/semmagic.nim | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/compiler/semmagic.nim b/compiler/semmagic.nim index 7a6f6788d..2aae562f9 100644 --- a/compiler/semmagic.nim +++ b/compiler/semmagic.nim @@ -306,7 +306,13 @@ proc semOf(c: PContext, n: PNode): PNode = result.typ = getSysType(c.graph, n.info, tyBool) return result elif diff == high(int): - localError(c.config, n.info, "'$1' cannot be of this subtype" % typeToString(a)) + if commonSuperclass(a, b) == nil: + localError(c.config, n.info, "'$1' cannot be of this subtype" % typeToString(a)) + else: + message(c.config, n.info, hintConditionAlwaysFalse, renderTree(n)) + result = newIntNode(nkIntLit, 0) + result.info = n.info + result.typ = getSysType(c.graph, n.info, tyBool) else: localError(c.config, n.info, "'of' takes 2 arguments") n.typ = getSysType(c.graph, n.info, tyBool) |