IronRuby.Builtins.RubyIOOps.Open C# (CSharp) Method

        public static RuleGenerator/*!*/ Open() {
            return new RuleGenerator((metaBuilder, args, name) => {
                var targetClass = (RubyClass)args.Target;
                targetClass.BuildObjectConstructionNoFlow(metaBuilder, args, name);

                // TODO: initialize yields the block?
                if (args.Signature.HasBlock) {
                    // ignore flow builder set up so far, we need one that creates a BlockParam for library calls:
                    metaBuilder.ControlFlowBuilder = null;

                    if (metaBuilder.BfcVariable == null) {
                        metaBuilder.BfcVariable = metaBuilder.GetTemporary(typeof(BlockParam), "#bfc");
                    }

                    metaBuilder.Result = Ast.Call(new Func<UnaryOpStorage, BlockParam, object, object>(InvokeOpenBlock).GetMethodInfo(), 
                        Ast.Constant(new UnaryOpStorage(args.RubyContext)),
                        metaBuilder.BfcVariable, 
                        metaBuilder.Result
                    );

                    RubyMethodGroupInfo.RuleControlFlowBuilder(metaBuilder, args);
                } else {
                    metaBuilder.BuildControlFlow(args);
                }
            });
        }

 public static RuleGenerator /*!*/ Open()
 {
     return(RubyIOOps.Open());
 }