Implement language feature #6885 (#6954)

2017-12-25 00:22:03 +03:00 · 2017-12-25 00:22:03 +03:00 · 2b3ec0a7c6
commit 2b3ec0a7c6
parent 6bd3a2826f
8 changed files with 131 additions and 14 deletions
--- a/lib/system/chcks.nim
+++ b/lib/system/chcks.nim
@ -63,7 +63,6 @@ proc chckObj(obj, subclass: PNimType) {.compilerproc.} =
  while x != subclass:
    if x == nil:
      sysFatal(ObjectConversionError, "invalid object conversion")
-      break
    x = x.base

 proc chckObjAsgn(a, b: PNimType) {.compilerproc, inline.} =