diff options
| -rw-r--r-- | compiler/types.nim | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/types.nim b/compiler/types.nim index b71888906..ddd299a86 100644 --- a/compiler/types.nim +++ b/compiler/types.nim @@ -339,6 +339,10 @@ proc canFormAcycleAux(marker: var IntSet, typ: PType, startId: int): bool = of tyProc: result = typ.callConv == ccClosure else: discard +proc isFinal*(t: PType): bool = + var t = t.skipTypes(abstractInst) + result = t.kind != tyObject or tfFinal in t.flags + proc canFormAcycle*(typ: PType): bool = var marker = initIntSet() result = canFormAcycleAux(marker, typ, typ.id) |