// this helper prepares arguments for COM binding by transforming ByVal StongBox arguments
        // into ByRef expressions that represent the argument's Value fields.
        internal static bool[] ProcessArgumentsForCom(ComMethodDesc method, ref DynamicMetaObject[] args,
                                                      List <ParameterExpression> temps, List <Expression> initTemps)
        {
            Debug.Assert(args != null);

            DynamicMetaObject[] newArgs = new DynamicMetaObject[args.Length];
            bool[] isByRefArg           = new bool[args.Length];

            for (int i = 0; i < args.Length; i++)
            {
                DynamicMetaObject curArgument = args[i];

                // set new arg infos to their original values or set default ones
                // we will do this fixup early so that we can assume we always have
                // arginfos in COM binder.

                if (IsByRef(curArgument))
                {
                    newArgs[i]    = curArgument;
                    isByRefArg[i] = true;
                }
                else
                {
                    if (IsPSReferenceArg(curArgument))
                    {
                        var restrictions = curArgument.Restrictions.Merge(
                            GetTypeRestrictionForDynamicMetaObject(curArgument)
                            );

                        // we have restricted this argument to LimitType so we can convert and conversion will be trivial cast.
                        Expression boxedValueAccessor = Expression.Property(
                            Helpers.Convert(
                                curArgument.Expression,
                                curArgument.LimitType
                                ),
                            curArgument.LimitType.GetProperty("Value")
                            );

                        PSReference value      = curArgument.Value as PSReference;
                        object      boxedValue = value != null ? value.Value : null;

                        newArgs[i] = new DynamicMetaObject(
                            boxedValueAccessor,
                            restrictions,
                            boxedValue
                            );

                        isByRefArg[i] = true;
                    }
                    else
                    {
                        if ((method.ParameterInformation != null) && (i < method.ParameterInformation.Length))
                        {
                            newArgs[i] = new DynamicMetaObject(curArgument.CastOrConvertMethodArgument(
                                                                   method.ParameterInformation[i].parameterType,
                                                                   i.ToString(CultureInfo.InvariantCulture),
                                                                   method.Name,
                                                                   temps,
                                                                   initTemps), curArgument.Restrictions);
                        }
                        else
                        {
                            newArgs[i] = curArgument;
                        }

                        isByRefArg[i] = false;
                    }
                }
            }

            args = newArgs;
            return(isByRefArg);
        }