lib/nydp/builtin/ensuring.rb in nydp-0.1.15 vs lib/nydp/builtin/ensuring.rb in nydp-0.2.0

@@ -1,20 +1,20 @@
 require "nydp/vm"
 
 class Nydp::Builtin::Ensuring
-  include Nydp::Helper, Nydp::Builtin::Base
+  include Nydp::Helper, Nydp::Builtin::Base, Singleton
 
   class InvokeProtection
     include Nydp::VM::Finally
     attr_reader :protection
 
     def initialize protection
       @protection = protection
     end
 
     def execute vm
-      protection.invoke vm, Nydp.NIL
+      protection.invoke vm, Nydp::NIL
     end
   end
 
   def builtin_invoke vm, args
     fn_ensure = args.car
@@ -22,8 +22,8 @@
 
     protection_instructions = Nydp::Pair.from_list [InvokeProtection.new(fn_ensure), Nydp::PopArg]
     vm.instructions.push protection_instructions
     vm.contexts.push vm.current_context
 
-    fn_tricky.invoke vm, Nydp.NIL
+    fn_tricky.invoke vm, Nydp::NIL
   end
 end