/Microsoft.Scripting/Tuple.cs

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/* ****************************************************************************

 *

 * Copyright (c) Microsoft Corporation. 

 *

 * This source code is subject to terms and conditions of the Microsoft Public License. A 

 * copy of the license can be found in the License.html file at the root of this distribution. If 

 * you cannot locate the  Microsoft Public License, please send an email to 

 * dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound 

 * by the terms of the Microsoft Public License.

 *

 * You must not remove this notice, or any other, from this software.

 *

 *

 * ***************************************************************************/



#if CODEPLEX_40

using System;

#else

using System; using Microsoft;

#endif

using System.CodeDom.Compiler;

using System.Collections.Generic;

using System.Diagnostics;

#if CODEPLEX_40

using System.Linq.Expressions;

#else

using Microsoft.Linq.Expressions;

#endif

using System.Reflection;

using Microsoft.Scripting.Runtime;

using Microsoft.Scripting.Utils;



namespace Microsoft.Scripting {

    public abstract class Tuple {

        public const int MaxSize = 128;

        private static readonly Dictionary<Type, int> _sizeDict = new Dictionary<Type, int>();



        public abstract object GetValue(int index);

        public abstract void SetValue(int index, object value);



        /// <summary>

        /// Sets the value at the given index for a tuple of the given size.  This set supports

        /// walking through nested tuples to get the correct final index.

        /// </summary>

        public void SetNestedValue(int size, int index, object value) {

            if (size < Tuple.MaxSize) {

                // fast path

                SetValue(index, value);

            } else {

                // slow path

                Tuple res = this;

                int lastAccess = -1;

                foreach (int i in GetAccessPath(size, index)) {

                    if (lastAccess != -1) {

                        res = (Tuple)res.GetValue(lastAccess);

                    }

                    lastAccess = i;

                }

                res.SetValue(lastAccess, value);

            }

        }



        /// <summary>

        /// Gets the value at the given index for a tuple of the given size.  This get

        /// supports walking through nested tuples to get the correct final index.

        /// </summary>

        public object GetNestedValue(int size, int index) {

            if (size < Tuple.MaxSize) {

                // fast path

                return GetValue(index);

            } else {

                // slow path

                object res = this;

                foreach (int i in GetAccessPath(size, index)) {

                    res = ((Tuple)res).GetValue(i);

                }

                return res;

            }

        }



        /// <summary>

        /// Gets the unbound generic Tuple type which has at lease size slots or null if a large enough tuple is not available.

        /// </summary>

        public static Type GetTupleType(int size) {

            #region Generated Tuple Get From Size



            // *** BEGIN GENERATED CODE ***

            // generated by function: gen_get_size from: generate_tuples.py



            if (size <= Tuple.MaxSize) {

                if (size <= 1) {

                    return typeof(Tuple<>);

                } else if (size <= 2) {

                    return typeof(Tuple<, >);

                } else if (size <= 4) {

                    return typeof(Tuple<, , , >);

                } else if (size <= 8) {

                    return typeof(Tuple<, , , , , , , >);

                } else if (size <= 16) {

                    return typeof(Tuple<, , , , , , , , , , , , , , , >);

                } else if (size <= 32) {

                    return typeof(Tuple<, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , >);

                } else if (size <= 64) {

                    return typeof(Tuple<, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , >);

                } else {

                    return typeof(Tuple<, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , >);

                }

            }



            // *** END GENERATED CODE ***



            #endregion



            return null;

        }



        /// <summary>

        /// Creates a generic tuple with the specified types.  

        /// 

        /// If the number of slots fits within the maximum tuple size then we simply 

        /// create a single tuple.  If it's greater then we create nested tuples 

        /// (e.g. a Tuple`2 which contains a Tuple`128 and a Tuple`8 if we had a size of 136).

        /// </summary>

        public static Type MakeTupleType(params Type[] types) {

            ContractUtils.RequiresNotNull(types, "types");



            return MakeTupleType(types, 0, types.Length);

        }



        /// <summary>

        /// Gets the number of usable slots in the provided Tuple type including slots available in nested tuples.

        /// </summary>

        public static int GetSize(Type tupleType) {

            ContractUtils.RequiresNotNull(tupleType, "tupleType");



            int count = 0;

            lock(_sizeDict) if (_sizeDict.TryGetValue(tupleType, out count)) return count;

            Stack<Type> types = new Stack<Type>(tupleType.GetGenericArguments());            



            while (types.Count != 0) {

                Type t = types.Pop();



                if (typeof(Tuple).IsAssignableFrom(t)) {

                    foreach (Type subtype in t.GetGenericArguments()) {

                        types.Push(subtype);

                    }

                    continue;

                }



                if (t == typeof(DynamicNull)) continue;



                count++;

            }



            lock (_sizeDict) _sizeDict[tupleType] = count;

            return count;

        }



        /// <summary>

        /// Creates a new instance of tupleType with the specified args.  If the tuple is a nested

        /// tuple the values are added in their nested forms.

        /// </summary>

        public static Tuple MakeTuple(Type tupleType, params object[] args) {

            ContractUtils.RequiresNotNull(tupleType, "tupleType");

            ContractUtils.RequiresNotNull(args, "args");



            return MakeTuple(tupleType, 0, args.Length, args);

        }



        /// <summary>

        /// Gets the values from a tuple including unpacking nested values.

        /// </summary>

        public static object[] GetTupleValues(Tuple tuple) {

            ContractUtils.RequiresNotNull(tuple, "tuple");



            List<object> res = new List<object>();



            GetTupleValues(tuple, res);



            return res.ToArray();

        }



        /// <summary>

        /// Gets the series of properties that needs to be accessed to access a logical item in a potentially nested tuple.

        /// </summary>

        public static IEnumerable<PropertyInfo> GetAccessPath(Type tupleType, int index) {

            return GetAccessProperties(tupleType, GetSize(tupleType), index);

        }



        /// <summary>

        /// Gets the series of properties that needs to be accessed to access a logical item in a potentially nested tuple.

        /// </summary>

        internal static IEnumerable<PropertyInfo> GetAccessProperties(Type tupleType, int size, int index) {

            ContractUtils.RequiresNotNull(tupleType, "tupleType");



            if (index < 0 || index >= size) throw new ArgumentException("index");



            foreach (int curIndex in GetAccessPath(size, index)) {

                PropertyInfo pi = tupleType.GetProperty("Item" + String.Format("{0:D3}", curIndex));

                Debug.Assert(pi != null);

                yield return pi;

                tupleType = pi.PropertyType;

            }

        }



        internal static IEnumerable<int> GetAccessPath(int size, int index) {

            // We get the final index by breaking the index into groups of bits.  The more significant bits

            // represent the indexes into the outermost tuples and the least significant bits index into the

            // inner most tuples.  The mask is initialized to mask the upper bits and adjust is initialized

            // and adjust is the value we need to divide by to get the index in the least significant bits.

            // As we go through we shift the mask and adjust down each loop to pull out the inner slot.  Logically

            // everything in here is shifting bits (not multiplying or dividing) because NewTuple.MaxSize is a 

            // power of 2.

            int depth = 0;

            int mask = Tuple.MaxSize - 1;

            int adjust = 1;

            int count = size;

            while (count > Tuple.MaxSize) {

                depth++;

                count /= Tuple.MaxSize;

                mask *= Tuple.MaxSize;

                adjust *= Tuple.MaxSize;

            }



            while (depth-- >= 0) {

                Debug.Assert(mask != 0);



                int curIndex = (index & mask) / adjust;



                yield return curIndex;



                mask /= Tuple.MaxSize;

                adjust /= Tuple.MaxSize;

            }

        }



        private static void GetTupleValues(Tuple tuple, List<object> args) {

            Type[] types = tuple.GetType().GetGenericArguments();

            for (int i = 0; i < types.Length; i++) {

                if (typeof(Tuple).IsAssignableFrom(types[i])) {

                    GetTupleValues((Tuple)tuple.GetValue(i), args);

                } else if (types[i] != typeof(DynamicNull)) {

                    args.Add(tuple.GetValue(i));

                }

            }

        }



        private static Tuple MakeTuple(Type tupleType, int start, int end, object[] args) {

            int size = end - start;



            Tuple res = (Tuple)Activator.CreateInstance(tupleType);

            if (size > Tuple.MaxSize) {

                int multiplier = 1;

                while (size > Tuple.MaxSize) {

                    size = (size + Tuple.MaxSize - 1) / Tuple.MaxSize;

                    multiplier *= Tuple.MaxSize;

                }

                for (int i = 0; i < size; i++) {

                    int newStart = start + (i * multiplier);

                    int newEnd = System.Math.Min(end, start + ((i + 1) * multiplier));



                    PropertyInfo pi = tupleType.GetProperty("Item" + String.Format("{0:D3}", i));

                    res.SetValue(i, CreateTupleInstance(pi.PropertyType, newStart, newEnd, args));

                }

            } else {

                int argCnt = tupleType.GetGenericArguments().Length;

                for (int i = start; i < end; i++) {

                    res.SetValue(i - start, args[i]);

                }

            }



            return res;



        }



        private static Tuple CreateTupleInstance(Type tupleType, int start, int end, object[] args) {

            if (args == null) return (Tuple)Activator.CreateInstance(tupleType);

            

            object[] realArgs = new object[tupleType.GetGenericArguments().Length];

            Array.Copy(args, start, realArgs, 0, end - start);

            return (Tuple)Activator.CreateInstance(tupleType, realArgs);

        }



        private static Type MakeTupleType(Type[] types, int start, int end) {

            int size = end - start;



            Type type = GetTupleType(size);

            if (type != null) {

                Type[] typeArr = new Type[type.GetGenericArguments().Length];

                int index = 0;

                for (int i = start; i < end; i++) {

                    typeArr[index++] = types[i];

                }

                while (index < typeArr.Length) {

                    typeArr[index++] = typeof(DynamicNull);

                }

                return type.MakeGenericType(typeArr);

            }



            int multiplier = 1;

            while (size > Tuple.MaxSize) {

                size = (size + Tuple.MaxSize - 1) / Tuple.MaxSize;

                multiplier *= Tuple.MaxSize;

            }



            type = Tuple.GetTupleType(size);

            Debug.Assert(type != null);

            Type[] nestedTypes = new Type[type.GetGenericArguments().Length];

            for (int i = 0; i < size; i++) {



                int newStart = start + (i * multiplier);

                int newEnd = System.Math.Min(end, start + ((i + 1) * multiplier));

                nestedTypes[i] = MakeTupleType(types, newStart, newEnd);

            }

            for (int i = size; i < nestedTypes.Length; i++) {

                nestedTypes[i] = typeof(DynamicNull);

            }



            return type.MakeGenericType(nestedTypes);

        }



        public abstract int Capacity {

            get;

        }



        /// <summary>

        /// Provides an expression for creating a tuple with the specified values.

        /// </summary>

        public static Expression Create(params Expression[] values) {

            return CreateNew(MakeTupleType(ArrayUtils.ConvertAll(values, x => x.Type)), 0, values.Length, values);

        }



        private static int PowerOfTwoRound(int value) {

            int res = 1;

            while (value > res) {

                res = res << 1;

            }



            return res;

        }



        internal static Expression CreateNew(Type tupleType, int start, int end, Expression[] values) {

            int size = end - start;

            Debug.Assert(tupleType != null);

            Debug.Assert(tupleType.IsSubclassOf(typeof(Tuple)));



            Expression[] newValues;

            if (size > Tuple.MaxSize) {



                int multiplier = 1;

                while (size > Tuple.MaxSize) {

                    size = (size + Tuple.MaxSize - 1) / Tuple.MaxSize;

                    multiplier *= Tuple.MaxSize;

                }

                newValues = new Expression[PowerOfTwoRound(size)];

                for (int i = 0; i < size; i++) {

                    int newStart = start + (i * multiplier);

                    int newEnd = System.Math.Min(end, start + ((i + 1) * multiplier));



                    PropertyInfo pi = tupleType.GetProperty("Item" + String.Format("{0:D3}", i));



                    newValues[i] = CreateNew(pi.PropertyType, newStart, newEnd, values);

                }



                for (int i = size; i < newValues.Length; i++) {

                    newValues[i] = Expression.Constant(null, typeof(DynamicNull));

                }

            } else {

                newValues = new Expression[PowerOfTwoRound(size)];

                for (int i = 0; i < size; i++) {

                    newValues[i] = values[i + start];

                }



                for (int i = size; i < newValues.Length; i++) {

                    newValues[i] = Expression.Constant(null, typeof(DynamicNull));

                }

            }

            

            return Expression.New(tupleType.GetConstructor(ArrayUtils.ConvertAll(newValues, x => x.Type)), newValues);

        }

    }



    #region Generated Tuples



    // *** BEGIN GENERATED CODE ***

    // generated by function: gen_tuples from: generate_tuples.py



    [GeneratedCode("DLR", "2.0")]

    public class Tuple<T0> : Tuple {

        public Tuple() { }



        public Tuple(T0 item0)

          : base() {

            _item0 = item0;

        }



        private T0 _item0;



        public T0 Item000 {

            get { return _item0; }

            set { _item0 = value; }

        }



        public override object GetValue(int index) {

            switch(index) {

                case 0: return Item000;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }



        public override void SetValue(int index, object value) {

            switch(index) {

                case 0: Item000 = (T0)value; break;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }

        public override int Capacity {

            get {

                return 1;

            }

        }

    }

    [GeneratedCode("DLR", "2.0")]

    public class Tuple<T0, T1> : Tuple<T0> {

        public Tuple() { }



        public Tuple(T0 item0, T1 item1)

          : base(item0) {

            _item1 = item1;

        }



        private T1 _item1;



        public T1 Item001 {

            get { return _item1; }

            set { _item1 = value; }

        }



        public override object GetValue(int index) {

            switch(index) {

                case 0: return Item000;

                case 1: return Item001;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }



        public override void SetValue(int index, object value) {

            switch(index) {

                case 0: Item000 = (T0)value; break;

                case 1: Item001 = (T1)value; break;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }

        public override int Capacity {

            get {

                return 2;

            }

        }

    }

    [GeneratedCode("DLR", "2.0")]

    public class Tuple<T0, T1, T2, T3> : Tuple<T0, T1> {

        public Tuple() { }



        public Tuple(T0 item0, T1 item1, T2 item2, T3 item3)

          : base(item0, item1) {

            _item2 = item2;

            _item3 = item3;

        }



        private T2 _item2;

        private T3 _item3;



        public T2 Item002 {

            get { return _item2; }

            set { _item2 = value; }

        }

        public T3 Item003 {

            get { return _item3; }

            set { _item3 = value; }

        }



        public override object GetValue(int index) {

            switch(index) {

                case 0: return Item000;

                case 1: return Item001;

                case 2: return Item002;

                case 3: return Item003;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }



        public override void SetValue(int index, object value) {

            switch(index) {

                case 0: Item000 = (T0)value; break;

                case 1: Item001 = (T1)value; break;

                case 2: Item002 = (T2)value; break;

                case 3: Item003 = (T3)value; break;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }

        public override int Capacity {

            get {

                return 4;

            }

        }

    }

    [GeneratedCode("DLR", "2.0")]

    public class Tuple<T0, T1, T2, T3, T4, T5, T6, T7> : Tuple<T0, T1, T2, T3> {

        public Tuple() { }



        public Tuple(T0 item0, T1 item1, T2 item2, T3 item3, T4 item4, T5 item5, T6 item6, T7 item7)

          : base(item0, item1, item2, item3) {

            _item4 = item4;

            _item5 = item5;

            _item6 = item6;

            _item7 = item7;

        }



        private T4 _item4;

        private T5 _item5;

        private T6 _item6;

        private T7 _item7;



        public T4 Item004 {

            get { return _item4; }

            set { _item4 = value; }

        }

        public T5 Item005 {

            get { return _item5; }

            set { _item5 = value; }

        }

        public T6 Item006 {

            get { return _item6; }

            set { _item6 = value; }

        }

        public T7 Item007 {

            get { return _item7; }

            set { _item7 = value; }

        }



        public override object GetValue(int index) {

            switch(index) {

                case 0: return Item000;

                case 1: return Item001;

                case 2: return Item002;

                case 3: return Item003;

                case 4: return Item004;

                case 5: return Item005;

                case 6: return Item006;

                case 7: return Item007;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }



        public override void SetValue(int index, object value) {

            switch(index) {

                case 0: Item000 = (T0)value; break;

                case 1: Item001 = (T1)value; break;

                case 2: Item002 = (T2)value; break;

                case 3: Item003 = (T3)value; break;

                case 4: Item004 = (T4)value; break;

                case 5: Item005 = (T5)value; break;

                case 6: Item006 = (T6)value; break;

                case 7: Item007 = (T7)value; break;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }

        public override int Capacity {

            get {

                return 8;

            }

        }

    }

    [GeneratedCode("DLR", "2.0")]

    public class Tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> : Tuple<T0, T1, T2, T3, T4, T5, T6, T7> {

        public Tuple() { }



        public Tuple(T0 item0, T1 item1, T2 item2, T3 item3, T4 item4, T5 item5, T6 item6, T7 item7, T8 item8, T9 item9, T10 item10, T11 item11, T12 item12, T13 item13, T14 item14, T15 item15)

          : base(item0, item1, item2, item3, item4, item5, item6, item7) {

            _item8 = item8;

            _item9 = item9;

            _item10 = item10;

            _item11 = item11;

            _item12 = item12;

            _item13 = item13;

            _item14 = item14;

            _item15 = item15;

        }



        private T8 _item8;

        private T9 _item9;

        private T10 _item10;

        private T11 _item11;

        private T12 _item12;

        private T13 _item13;

        private T14 _item14;

        private T15 _item15;



        public T8 Item008 {

            get { return _item8; }

            set { _item8 = value; }

        }

        public T9 Item009 {

            get { return _item9; }

            set { _item9 = value; }

        }

        public T10 Item010 {

            get { return _item10; }

            set { _item10 = value; }

        }

        public T11 Item011 {

            get { return _item11; }

            set { _item11 = value; }

        }

        public T12 Item012 {

            get { return _item12; }

            set { _item12 = value; }

        }

        public T13 Item013 {

            get { return _item13; }

            set { _item13 = value; }

        }

        public T14 Item014 {

            get { return _item14; }

            set { _item14 = value; }

        }

        public T15 Item015 {

            get { return _item15; }

            set { _item15 = value; }

        }



        public override object GetValue(int index) {

            switch(index) {

                case 0: return Item000;

                case 1: return Item001;

                case 2: return Item002;

                case 3: return Item003;

                case 4: return Item004;

                case 5: return Item005;

                case 6: return Item006;

                case 7: return Item007;

                case 8: return Item008;

                case 9: return Item009;

                case 10: return Item010;

                case 11: return Item011;

                case 12: return Item012;

                case 13: return Item013;

                case 14: return Item014;

                case 15: return Item015;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }



        public override void SetValue(int index, object value) {

            switch(index) {

                case 0: Item000 = (T0)value; break;

                case 1: Item001 = (T1)value; break;

                case 2: Item002 = (T2)value; break;

                case 3: Item003 = (T3)value; break;

                case 4: Item004 = (T4)value; break;

                case 5: Item005 = (T5)value; break;

                case 6: Item006 = (T6)value; break;

                case 7: Item007 = (T7)value; break;

                case 8: Item008 = (T8)value; break;

                case 9: Item009 = (T9)value; break;

                case 10: Item010 = (T10)value; break;

                case 11: Item011 = (T11)value; break;

                case 12: Item012 = (T12)value; break;

                case 13: Item013 = (T13)value; break;

                case 14: Item014 = (T14)value; break;

                case 15: Item015 = (T15)value; break;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }

        public override int Capacity {

            get {

                return 16;

            }

        }

    }

    [GeneratedCode("DLR", "2.0")]

    public class Tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31> : Tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> {

        public Tuple() { }



        public Tuple(T0 item0, T1 item1, T2 item2, T3 item3, T4 item4, T5 item5, T6 item6, T7 item7, T8 item8, T9 item9, T10 item10, T11 item11, T12 item12, T13 item13, T14 item14, T15 item15, T16 item16, T17 item17, T18 item18, T19 item19, T20 item20, T21 item21, T22 item22, T23 item23, T24 item24, T25 item25, T26 item26, T27 item27, T28 item28, T29 item29, T30 item30, T31 item31)

          : base(item0, item1, item2, item3, item4, item5, item6, item7, item8, item9, item10, item11, item12, item13, item14, item15) {

            _item16 = item16;

            _item17 = item17;

            _item18 = item18;

            _item19 = item19;

            _item20 = item20;

            _item21 = item21;

            _item22 = item22;

            _item23 = item23;

            _item24 = item24;

            _item25 = item25;

            _item26 = item26;

            _item27 = item27;

            _item28 = item28;

            _item29 = item29;

            _item30 = item30;

            _item31 = item31;

        }



        private T16 _item16;

        private T17 _item17;

        private T18 _item18;

        private T19 _item19;

        private T20 _item20;

        private T21 _item21;

        private T22 _item22;

        private T23 _item23;

        private T24 _item24;

        private T25 _item25;

        private T26 _item26;

        private T27 _item27;

        private T28 _item28;

        private T29 _item29;

        private T30 _item30;

        private T31 _item31;



        public T16 Item016 {

            get { return _item16; }

            set { _item16 = value; }

        }

        public T17 Item017 {

            get { return _item17; }

            set { _item17 = value; }

        }

        public T18 Item018 {

            get { return _item18; }

            set { _item18 = value; }

        }

        public T19 Item019 {

            get { return _item19; }

            set { _item19 = value; }

        }

        public T20 Item020 {

            get { return _item20; }

            set { _item20 = value; }

        }

        public T21 Item021 {

            get { return _item21; }

            set { _item21 = value; }

        }

        public T22 Item022 {

            get { return _item22; }

            set { _item22 = value; }

        }

        public T23 Item023 {

            get { return _item23; }

            set { _item23 = value; }

        }

        public T24 Item024 {

            get { return _item24; }

            set { _item24 = value; }

        }

        public T25 Item025 {

            get { return _item25; }

            set { _item25 = value; }

        }

        public T26 Item026 {

            get { return _item26; }

            set { _item26 = value; }

        }

        public T27 Item027 {

            get { return _item27; }

            set { _item27 = value; }

        }

        public T28 Item028 {

            get { return _item28; }

            set { _item28 = value; }

        }

        public T29 Item029 {

            get { return _item29; }

            set { _item29 = value; }

        }

        public T30 Item030 {

            get { return _item30; }

            set { _item30 = value; }

        }

        public T31 Item031 {

            get { return _item31; }

            set { _item31 = value; }

        }



        public override object GetValue(int index) {

            switch(index) {

                case 0: return Item000;

                case 1: return Item001;

                case 2: return Item002;

                case 3: return Item003;

                case 4: return Item004;

                case 5: return Item005;

                case 6: return Item006;

                case 7: return Item007;

                case 8: return Item008;

                case 9: return Item009;

                case 10: return Item010;

                case 11: return Item011;

                case 12: return Item012;

                case 13: return Item013;

                case 14: return Item014;

                case 15: return Item015;

                case 16: return Item016;

                case 17: return Item017;

                case 18: return Item018;

                case 19: return Item019;

                case 20: return Item020;

                case 21: return Item021;

                case 22: return Item022;

                case 23: return Item023;

                case 24: return Item024;

                case 25: return Item025;

                case 26: return Item026;

                case 27: return Item027;

                case 28: return Item028;

                case 29: return Item029;

                case 30: return Item030;

                case 31: return Item031;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }



        public override void SetValue(int index, object value) {

            switch(index) {

                case 0: Item000 = (T0)value; break;

                case 1: Item001 = (T1)value; break;

                case 2: Item002 = (T2)value; break;

                case 3: Item003 = (T3)value; break;

                case 4: Item004 = (T4)value; break;

                case 5: Item005 = (T5)value; break;

                case 6: Item006 = (T6)value; break;

                case 7: Item007 = (T7)value; break;

                case 8: Item008 = (T8)value; break;

                case 9: Item009 = (T9)value; break;

                case 10: Item010 = (T10)value; break;

                case 11: Item011 = (T11)value; break;

                case 12: Item012 = (T12)value; break;

                case 13: Item013 = (T13)value; break;

                case 14: Item014 = (T14)value; break;

                case 15: Item015 = (T15)value; break;

                case 16: Item016 = (T16)value; break;

                case 17: Item017 = (T17)value; break;

                case 18: Item018 = (T18)value; break;

                case 19: Item019 = (T19)value; break;

                case 20: Item020 = (T20)value; break;

                case 21: Item021 = (T21)value; break;

                case 22: Item022 = (T22)value; break;

                case 23: Item023 = (T23)value; break;

                case 24: Item024 = (T24)value; break;

                case 25: Item025 = (T25)value; break;

                case 26: Item026 = (T26)value; break;

                case 27: Item027 = (T27)value; break;

                case 28: Item028 = (T28)value; break;

                case 29: Item029 = (T29)value; break;

                case 30: Item030 = (T30)value; break;

                case 31: Item031 = (T31)value; break;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }

        public override int Capacity {

            get {

                return 32;

            }

        }

    }

    [GeneratedCode("DLR", "2.0")]

    public class Tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37, T38, T39, T40, T41, T42, T43, T44, T45, T46, T47, T48, T49, T50, T51, T52, T53, T54, T55, T56, T57, T58, T59, T60, T61, T62, T63> : Tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31> {

        public Tuple() { }



        public Tuple(T0 item0, T1 item1, T2 item2, T3 item3, T4 item4, T5 item5, T6 item6, T7 item7, T8 item8, T9 item9, T10 item10, T11 item11, T12 item12, T13 item13, T14 item14, T15 item15, T16 item16, T17 item17, T18 item18, T19 item19, T20 item20, T21 item21, T22 item22, T23 item23, T24 item24, T25 item25, T26 item26, T27 item27, T28 item28, T29 item29, T30 item30, T31 item31, T32 item32, T33 item33, T34 item34, T35 item35, T36 item36, T37 item37, T38 item38, T39 item39, T40 item40, T41 item41, T42 item42, T43 item43, T44 item44, T45 item45, T46 item46, T47 item47, T48 item48, T49 item49, T50 item50, T51 item51, T52 item52, T53 item53, T54 item54, T55 item55, T56 item56, T57 item57, T58 item58, T59 item59, T60 item60, T61 item61, T62 item62, T63 item63)

          : base(item0, item1, item2, item3, item4, item5, item6, item7, item8, item9, item10, item11, item12, item13, item14, item15, item16, item17, item18, item19, item20, item21, item22, item23, item24, item25, item26, item27, item28, item29, item30, item31) {

            _item32 = item32;

            _item33 = item33;

            _item34 = item34;

            _item35 = item35;

            _item36 = item36;

            _item37 = item37;

            _item38 = item38;

            _item39 = item39;

            _item40 = item40;

            _item41 = item41;

            _item42 = item42;

            _item43 = item43;

            _item44 = item44;

            _item45 = item45;

            _item46 = item46;

            _item47 = item47;

            _item48 = item48;

            _item49 = item49;

            _item50 = item50;

            _item51 = item51;

            _item52 = item52;

            _item53 = item53;

            _item54 = item54;

            _item55 = item55;

            _item56 = item56;

            _item57 = item57;

            _item58 = item58;

            _item59 = item59;

            _item60 = item60;

            _item61 = item61;

            _item62 = item62;

            _item63 = item63;

        }



        private T32 _item32;

        private T33 _item33;

        private T34 _item34;

        private T35 _item35;

        private T36 _item36;

        private T37 _item37;

        private T38 _item38;

        private T39 _item39;

        private T40 _item40;

        private T41 _item41;

        private T42 _item42;

        private T43 _item43;

        private T44 _item44;

        private T45 _item45;

        private T46 _item46;

        private T47 _item47;

        private T48 _item48;

        private T49 _item49;

        private T50 _item50;

        private T51 _item51;

        private T52 _item52;

        private T53 _item53;

        private T54 _item54;

        private T55 _item55;

        private T56 _item56;

        private T57 _item57;

        private T58 _item58;

        private T59 _item59;

        private T60 _item60;

        private T61 _item61;

        private T62 _item62;

        private T63 _item63;



        public T32 Item032 {

            get { return _item32; }

            set { _item32 = value; }

        }

        public T33 Item033 {

            get { return _item33; }

            set { _item33 = value; }

        }

        public T34 Item034 {

            get { return _item34; }

            set { _item34 = value; }

        }

        public T35 Item035 {

            get { return _item35; }

            set { _item35 = value; }

        }

        public T36 Item036 {

            get { return _item36; }

            set { _item36 = value; }

        }

        public T37 Item037 {

            get { return _item37; }

            set { _item37 = value; }

        }

        public T38 Item038 {

            get { return _item38; }

            set { _item38 = value; }

        }

        public T39 Item039 {

            get { return _item39; }

            set { _item39 = value; }

        }

        public T40 Item040 {

            get { return _item40; }

            set { _item40 = value; }

        }

        public T41 Item041 {

            get { return _item41; }

            set { _item41 = value; }

        }

        public T42 Item042 {

            get { return _item42; }

            set { _item42 = value; }

        }

        public T43 Item043 {

            get { return _item43; }

            set { _item43 = value; }

        }

        public T44 Item044 {

            get { return _item44; }

            set { _item44 = value; }

        }

        public T45 Item045 {

            get { return _item45; }

            set { _item45 = value; }

        }

        public T46 Item046 {

            get { return _item46; }

            set { _item46 = value; }

        }

        public T47 Item047 {

            get { return _item47; }

            set { _item47 = value; }

        }

        public T48 Item048 {

            get { return _item48; }

            set { _item48 = value; }

        }

        public T49 Item049 {

            get { return _item49; }

            set { _item49 = value; }

        }

        public T50 Item050 {

            get { return _item50; }

            set { _item50 = value; }

        }

        public T51 Item051 {

            get { return _item51; }

            set { _item51 = value; }

        }

        public T52 Item052 {

            get { return _item52; }

            set { _item52 = value; }

        }

        public T53 Item053 {

            get { return _item53; }

            set { _item53 = value; }

        }

        public T54 Item054 {

            get { return _item54; }

            set { _item54 = value; }

        }

        public T55 Item055 {

            get { return _item55; }

            set { _item55 = value; }

        }

        public T56 Item056 {

            get { return _item56; }

            set { _item56 = value; }

        }

        public T57 Item057 {

            get { return _item57; }

            set { _item57 = value; }

        }

        public T58 Item058 {

            get { return _item58; }

            set { _item58 = value; }

        }

        public T59 Item059 {

            get { return _item59; }

            set { _item59 = value; }

        }

        public T60 Item060 {

            get { return _item60; }

            set { _item60 = value; }

        }

        public T61 Item061 {

            get { return _item61; }

            set { _item61 = value; }

        }

        public T62 Item062 {

            get { return _item62; }

            set { _item62 = value; }

        }

        public T63 Item063 {

            get { return _item63; }

            set { _item63 = value; }

        }



        public override object GetValue(int index) {

            switch(index) {

                case 0: return Item000;

                case 1: return Item001;

                case 2: return Item002;

                case 3: return Item003;

                case 4: return Item004;

                case 5: return Item005;

                case 6: return Item006;

                case 7: return Item007;

                case 8: return Item008;

                case 9: return Item009;

                case 10: return Item010;

                case 11: return Item011;

                case 12: return Item012;

                case 13: return Item013;

                case 14: return Item014;

                case 15: return Item015;

                case 16: return Item016;

                case 17: return Item017;

                case 18: return Item018;

                case 19: return Item019;

                case 20: return Item020;

                case 21: return Item021;

                case 22: return Item022;

                case 23: return Item023;

                case 24: return Item024;

                case 25: return Item025;

                case 26: return Item026;

                case 27: return Item027;

                case 28: return Item028;

                case 29: return Item029;

                case 30: return Item030;

                case 31: return Item031;

                case 32: return Item032;

                case 33: return Item033;

                case 34: return Item034;

                case 35: return Item035;

                case 36: return Item036;

                case 37: return Item037;

                case 38: return Item038;

                case 39: return Item039;

                case 40: return Item040;

                case 41: return Item041;

                case 42: return Item042;

                case 43: return Item043;

                case 44: return Item044;

                case 45: return Item045;

                case 46: return Item046;

                case 47: return Item047;

                case 48: return Item048;

                case 49: return Item049;

                case 50: return Item050;

                case 51: return Item051;

                case 52: return Item052;

                case 53: return Item053;

                case 54: return Item054;

                case 55: return Item055;

                case 56: return Item056;

                case 57: return Item057;

                case 58: return Item058;

                case 59: return Item059;

                case 60: return Item060;

                case 61: return Item061;

                case 62: return Item062;

                case 63: return Item063;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }



        public override void SetValue(int index, object value) {

            switch(index) {

                case 0: Item000 = (T0)value; break;

                case 1: Item001 = (T1)value; break;

                case 2: Item002 = (T2)value; break;

                case 3: Item003 = (T3)value; break;

                case 4: Item004 = (T4)value; break;

                case 5: Item005 = (T5)value; break;

                case 6: Item006 = (T6)value; break;

                case 7: Item007 = (T7)value; break;

                case 8: Item008 = (T8)value; break;

                case 9: Item009 = (T9)value; break;

                case 10: Item010 = (T10)value; break;

                case 11: Item011 = (T11)value; break;

                case 12: Item012 = (T12)value; break;

                case 13: Item013 = (T13)value; break;

                case 14: Item014 = (T14)value; break;

                case 15: Item015 = (T15)value; break;

                case 16: Item016 = (T16)value; break;

                case 17: Item017 = (T17)value; break;

                case 18: Item018 = (T18)value; break;

                case 19: Item019 = (T19)value; break;

                case 20: Item020 = (T20)value; break;

                case 21: Item021 = (T21)value; break;

                case 22: Item022 = (T22)value; break;

                case 23: Item023 = (T23)value; break;

                case 24: Item024 = (T24)value; break;

                case 25: Item025 = (T25)value; break;

                case 26: Item026 = (T26)value; break;

                case 27: Item027 = (T27)value; break;

                case 28: Item028 = (T28)value; break;

                case 29: Item029 = (T29)value; break;

                case 30: Item030 = (T30)value; break;

                case 31: Item031 = (T31)value; break;

                case 32: Item032 = (T32)value; break;

                case 33: Item033 = (T33)value; break;

                case 34: Item034 = (T34)value; break;

                case 35: Item035 = (T35)value; break;

                case 36: Item036 = (T36)value; break;

                case 37: Item037 = (T37)value; break;

                case 38: Item038 = (T38)value; break;

                case 39: Item039 = (T39)value; break;

                case 40: Item040 = (T40)value; break;

                case 41: Item041 = (T41)value; break;

                case 42: Item042 = (T42)value; break;

                case 43: Item043 = (T43)value; break;

                case 44: Item044 = (T44)value; break;

                case 45: Item045 = (T45)value; break;

                case 46: Item046 = (T46)value; break;

                case 47: Item047 = (T47)value; break;

                case 48: Item048 = (T48)value; break;

                case 49: Item049 = (T49)value; break;

                case 50: Item050 = (T50)value; break;

                case 51: Item051 = (T51)value; break;

                case 52: Item052 = (T52)value; break;

                case 53: Item053 = (T53)value; break;

                case 54: Item054 = (T54)value; break;

                case 55: Item055 = (T55)value; break;

                case 56: Item056 = (T56)value; break;

                case 57: Item057 = (T57)value; break;

                case 58: Item058 = (T58)value; break;

                case 59: Item059 = (T59)value; break;

                case 60: Item060 = (T60)value; break;

                case 61: Item061 = (T61)value; break;

                case 62: Item062 = (T62)value; break;

                case 63: Item063 = (T63)value; break;

                default: throw new ArgumentOutOfRangeException("index");

            }

        }

        public override int Capacity {

            get {

                return 64;

            }

        }

    }

    [GeneratedCode("DLR", "2.0")]

    public class Tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37, T38, T39, T40, T41, T42, T43, T44, T45, T46, T47, T48, T49, T50, T51, T52, T53, T54, T55, T56, T57, T58, T59, T60, T61, T62, T63, T64, T65, T66, T67, T68, T69, T70, T71, T72, T73, T74, T75, T76, T77, T78, T79, T80, T81, T82, T83, T84, T85, T86, T87, T88, T89, T90, T91, T92, T93, T94, T95, T96, T97, T98, T99, T100, T101, T102, T103, T104, T105, T106, T107, T108, T109, T110, T111, T112, T113, T114, T115, T116, T117, T118, T119, T120, T121, T122, T123, T124, T125, T126, T127> : Tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, T29, T30, T31, T32, T33, T34, T35, T36, T37, T38, T39, T40, T41, T42, T43, T44, T45, T46, T47, T48, T49, T50, T51, T52, T53, T54, T55, T56, T57, T58, T59, T60, T61, T62, T63> {

        public Tuple() { }



        public Tuple(T0 item0, T1 item1, T2 item2, T3 item3, T4 item4, T5 item5, T6 item6, T7 item7, T8 item8, T9 item9, T10 item10, T11 item11, T12 item12, T13 item13, T14 item14, T15 item15, T16 item16, T17 item17, T18 item18, T19 item19, T20 item20, T21 item21, T22 item22, T23 item23, T24 item24, T25 item25, T26 item26, T27 item27, T28 item28, T29 item29, T30 item30, T31 item31, T32 item32, T33 item33, T34 item34, T35 item35, T36 item36, T37 item37, T38 item38, T39 item39, T40 item40, T41 item41, T42 item42, T43 item43, T44 item44, T45 item45, T46 item46, T47 item47, T48 item48, T49 item49, T50 item50, T51 item51, T52 item52, T53 item53, T54 item54, T55 item55, T56 item56, T57 item57, T58 item58, T59 item59, T60 item60, T61 item61, T62 item62, T63 item63, T64 item64, T65 item65, T66 item66, T67 item67, T68 item68, T69 item69, T70 item70, T71 item71, T72 item72, T73 item73, T74 item74, T75 item75, T76 item76, T77 item77, T78 item78, T79 item79, T80 item80, T81 item81, T82 item82, T83 item83, T84 item84, T85 item85, T86 item86, T87 item87, T88 item88, T89 item89, T90 item90, T91 item91, T92 item92, T93 item93, T94 item94, T95 item95, T96 item96, T97 item97, T98 item98, T99 item99, T100 item100, T101 item101, T102 item102, T103 item103, T104 item104, T105 item105, T106 item106, T107 item107, T108 item108, T109 item109, T110 item110, T111 item111, T112 item112, T113 item113, T114 item114, T115 item115, T116 item116, T117 item117, T118 item118, T119 item119, T120 item120, T121 item121, T122 item122, T123 item123, T124 item124, T125 item125, T126 item126, T127 item127)

          : base(item0, item1, item2, item3, item4, item5, item6, item7, item8, item9, item10, item11, item12, item13, item14, item15, item16, item17, item18, item19, item20, item21, item22, item23, item24, item25, item26, item27, item28, item29, item30, item31, item32, item33, item34, item35, item36, item37, item38, item39, item40, item41, item42, item43, item44, item45, item46, item47, item48, item49, item50, item51, item52, item53, item54, item55, item56, item57, item58, item59, item60, item61, item62, item63) {

            _item64 = item64;

            _item65 = item65;

            _item66 = item66;

            _item67 = item67;

            _item68 = item68;

            _item…