Microsoft.CSharp.RuntimeBinder.RuntimeBinder.DispatchPayload C# (CSharp) Method

        private EXPR DispatchPayload(
            DynamicMetaObjectBinder payload,
            ArgumentObject[] arguments,
            Dictionary<int, LocalVariableSymbol> dictionary)
        {
            EXPR pResult = null;
            if (payload is CSharpBinaryOperationBinder)
            {
                pResult = BindBinaryOperation(payload as CSharpBinaryOperationBinder, arguments, dictionary);
            }
            else if (payload is CSharpUnaryOperationBinder)
            {
                pResult = BindUnaryOperation(payload as CSharpUnaryOperationBinder, arguments, dictionary);
            }
            else if (payload is CSharpSetMemberBinder)
            {
                pResult = BindAssignment(payload as CSharpSetMemberBinder, arguments, dictionary);
            }
            else if (payload is CSharpConvertBinder)
            {
                Debug.Assert(arguments.Length == 1);
                {
                    CSharpConvertBinder conversion = payload as CSharpConvertBinder;
                    switch (conversion.ConversionKind)
                    {
                        case CSharpConversionKind.ImplicitConversion:
                            pResult = BindImplicitConversion(arguments, conversion.Type, dictionary, false);
                            break;
                        case CSharpConversionKind.ExplicitConversion:
                            pResult = BindExplicitConversion(arguments, conversion.Type, dictionary);
                            break;
                        case CSharpConversionKind.ArrayCreationConversion:
                            pResult = BindImplicitConversion(arguments, conversion.Type, dictionary, true);
                            break;
                        default:
                            Debug.Assert(false, "Unknown conversion kind");
                            throw Error.InternalCompilerError();
                    }
                }
            }
            else if (payload is ICSharpInvokeOrInvokeMemberBinder)
            {
                EXPR callingObject = CreateCallingObjectForCall(payload as ICSharpInvokeOrInvokeMemberBinder, arguments, dictionary);
                pResult = BindCall(payload as ICSharpInvokeOrInvokeMemberBinder, callingObject, arguments, dictionary);
            }
            else if (payload is CSharpGetMemberBinder)
            {
                Debug.Assert(arguments.Length == 1);
                pResult = BindProperty(payload, arguments[0], dictionary[0], null, false);
            }
            else if (payload is CSharpGetIndexBinder)
            {
                EXPR indexerArguments = CreateArgumentListEXPR(arguments, dictionary, 1, arguments.Length);
                pResult = BindProperty(payload, arguments[0], dictionary[0], indexerArguments, false);
            }
            else if (payload is CSharpSetIndexBinder)
            {
                pResult = BindAssignment(payload as CSharpSetIndexBinder, arguments, dictionary);
            }
            else if (payload is CSharpIsEventBinder)
            {
                pResult = BindIsEvent(payload as CSharpIsEventBinder, arguments, dictionary);
            }
            else
            {
                Debug.Assert(false, "Unknown payload kind");
                throw Error.InternalCompilerError();
            }
            return pResult;
        }