bugfix: empty object case branches produce an error

compiler/parser.nim

@@ -1177,7 +1177,11 @@ proc parseObjectCase(p: var TParser): PNode =
       eat(p, tkColon)
     else: break 
     skipComment(p, b)
-    addSon(b, parseObjectPart(p))
+    var fields = parseObjectPart(p)
+    if fields.kind == nkEmpty:
+      parMessage(p, errIdentifierExpected, p.tok)
+      fields = newNodeP(nkNilLit, p) # don't break further semantic checking
+    addSon(b, fields)
     addSon(result, b)
     if b.kind == nkElse: break 
   

todo.txt

@@ -23,7 +23,6 @@ version 0.9.0
 
 Bugs
 ----
-- the parser allows empty object case branches
 - bug: generic assign still buggy
   - Optimization: If we use a temporary for the result anyway the code gen
     should make use of this fact to generate better code...