369 lines
17 KiB
C#
369 lines
17 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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/* CSVReader - a simple open source C# class library to read CSV data
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* by Andrew Stellman - http://www.stellman-greene.com/CSVReader
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*
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* StringConverter.cs - Class to convert strings to typed objects
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*
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* download the latest version: http://svn.stellman-greene.com/CSVReader
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*
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* (c) 2008, Stellman & Greene Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Stellman & Greene Consulting nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY STELLMAN & GREENE CONSULTING ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL STELLMAN & GREENE CONSULTING BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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using System;
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using System.Collections.Generic;
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namespace ASC.Web.CRM.Classes
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{
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/// <summary>
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/// Static class to convert strings to typed values
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/// </summary>
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public static class StringConverter
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{
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public static Type ConvertString(string value, out object convertedValue)
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{
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// First check the whole number types, because floating point types will always parse whole numbers
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// Start with the smallest types
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byte byteResult;
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if (byte.TryParse(value, out byteResult))
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{
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convertedValue = byteResult;
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return typeof(byte);
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}
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short shortResult;
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if (short.TryParse(value, out shortResult))
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{
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convertedValue = shortResult;
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return typeof(short);
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}
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int intResult;
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if (int.TryParse(value, out intResult))
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{
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convertedValue = intResult;
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return typeof(int);
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}
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long longResult;
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if (long.TryParse(value, out longResult))
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{
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convertedValue = longResult;
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return typeof(long);
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}
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ulong ulongResult;
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if (ulong.TryParse(value, out ulongResult))
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{
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convertedValue = ulongResult;
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return typeof(ulong);
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}
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// No need to check the rest of the unsigned types, which will fit into the signed whole number types
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// Next check the floating point types
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float floatResult;
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if (float.TryParse(value, out floatResult))
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{
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convertedValue = floatResult;
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return typeof(float);
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}
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// It's not clear that there's anything that double.TryParse() and decimal.TryParse() will parse
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// but which float.TryParse() won't
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double doubleResult;
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if (double.TryParse(value, out doubleResult))
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{
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convertedValue = doubleResult;
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return typeof(double);
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}
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decimal decimalResult;
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if (decimal.TryParse(value, out decimalResult))
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{
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convertedValue = decimalResult;
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return typeof(decimal);
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}
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// It's not a number, so it's either a bool, char or string
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bool boolResult;
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if (bool.TryParse(value, out boolResult))
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{
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convertedValue = boolResult;
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return typeof(bool);
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}
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char charResult;
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if (char.TryParse(value, out charResult))
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{
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convertedValue = charResult;
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return typeof(char);
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}
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convertedValue = value;
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return typeof(string);
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}
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/// <summary>
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/// Compare two types and find a type that can fit both of them
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/// </summary>
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/// <param name="typeA">First type to compare</param>
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/// <param name="typeB">Second type to compare</param>
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/// <returns>The type that can fit both types, or string if they're incompatible</returns>
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public static Type FindCommonType(Type typeA, Type typeB)
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{
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// Build the singleton type map (which will rebuild it in a typesafe manner
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// if it's not already built).
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BuildTypeMap();
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if (!typeMap.ContainsKey(typeA))
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return typeof(string);
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if (!typeMap[typeA].ContainsKey(typeB))
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return typeof(string);
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return typeMap[typeA][typeB];
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}
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// Dictionary to map two types to a common type that can hold both of them
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private static Dictionary<Type, Dictionary<Type, Type>> typeMap = null;
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// Locker object to build the singleton typeMap in a typesafe manner
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private static readonly object locker = new object();
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/// <summary>
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/// Build the singleton type map in a typesafe manner.
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/// This map is a dictionary that maps a pair of types to a common type.
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/// So typeMap[typeof(float)][typeof(uint)] will return float, while
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/// typemap[typeof(char)][typeof(bool)] will return string.
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/// </summary>
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private static void BuildTypeMap()
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{
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lock (locker)
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{
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if (typeMap == null)
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{
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typeMap = new Dictionary<Type, Dictionary<Type, Type>>()
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{
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// Comparing byte
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{typeof(byte), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(byte) },
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{ typeof(short), typeof(short) },
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{ typeof(int), typeof(int) },
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{ typeof(long), typeof(long) },
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{ typeof(ulong), typeof(ulong) },
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{ typeof(float), typeof(float) },
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{ typeof(double), typeof(double) },
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{ typeof(decimal), typeof(decimal) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing short
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{typeof(short), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(short) },
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{ typeof(short), typeof(short) },
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{ typeof(int), typeof(int) },
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{ typeof(long), typeof(long) },
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{ typeof(ulong), typeof(ulong) },
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{ typeof(float), typeof(float) },
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{ typeof(double), typeof(double) },
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{ typeof(decimal), typeof(decimal) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing int
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{typeof(int), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(int) },
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{ typeof(short), typeof(int) },
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{ typeof(int), typeof(int) },
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{ typeof(long), typeof(long) },
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{ typeof(ulong), typeof(ulong) },
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{ typeof(float), typeof(float) },
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{ typeof(double), typeof(double) },
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{ typeof(decimal), typeof(decimal) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing long
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{typeof(long), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(long) },
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{ typeof(short), typeof(long) },
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{ typeof(int), typeof(long) },
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{ typeof(long), typeof(long) },
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{ typeof(ulong), typeof(ulong) },
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{ typeof(float), typeof(float) },
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{ typeof(double), typeof(double) },
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{ typeof(decimal), typeof(decimal) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing ulong
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{typeof(ulong), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(ulong) },
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{ typeof(short), typeof(ulong) },
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{ typeof(int), typeof(ulong) },
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{ typeof(long), typeof(ulong) },
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{ typeof(ulong), typeof(ulong) },
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{ typeof(float), typeof(float) },
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{ typeof(double), typeof(double) },
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{ typeof(decimal), typeof(decimal) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing float
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{typeof(float), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(float) },
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{ typeof(short), typeof(float) },
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{ typeof(int), typeof(float) },
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{ typeof(long), typeof(float) },
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{ typeof(ulong), typeof(float) },
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{ typeof(float), typeof(float) },
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{ typeof(double), typeof(double) },
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{ typeof(decimal), typeof(decimal) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing double
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{typeof(double), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(double) },
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{ typeof(short), typeof(double) },
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{ typeof(int), typeof(double) },
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{ typeof(long), typeof(double) },
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{ typeof(ulong), typeof(double) },
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{ typeof(float), typeof(double) },
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{ typeof(double), typeof(double) },
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{ typeof(decimal), typeof(decimal) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing decimal
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{typeof(decimal), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(decimal) },
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{ typeof(short), typeof(decimal) },
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{ typeof(int), typeof(decimal) },
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{ typeof(long), typeof(decimal) },
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{ typeof(ulong), typeof(decimal) },
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{ typeof(float), typeof(decimal) },
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{ typeof(double), typeof(decimal) },
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{ typeof(decimal), typeof(decimal) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing bool
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{typeof(bool), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(string) },
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{ typeof(short), typeof(string) },
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{ typeof(int), typeof(string) },
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{ typeof(long), typeof(string) },
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{ typeof(ulong), typeof(string) },
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{ typeof(float), typeof(string) },
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{ typeof(double), typeof(string) },
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{ typeof(decimal), typeof(string) },
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{ typeof(bool), typeof(bool) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing char
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{typeof(char), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(string) },
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{ typeof(short), typeof(string) },
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{ typeof(int), typeof(string) },
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{ typeof(long), typeof(string) },
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{ typeof(ulong), typeof(string) },
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{ typeof(float), typeof(string) },
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{ typeof(double), typeof(string) },
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{ typeof(decimal), typeof(string) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(char) },
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{ typeof(string), typeof(string) },
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}},
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// Comparing string
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{typeof(string), new Dictionary<Type, Type>() {
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{ typeof(byte), typeof(string) },
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{ typeof(short), typeof(string) },
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{ typeof(int), typeof(string) },
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{ typeof(long), typeof(string) },
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{ typeof(ulong), typeof(string) },
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{ typeof(float), typeof(string) },
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{ typeof(double), typeof(string) },
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{ typeof(decimal), typeof(string) },
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{ typeof(bool), typeof(string) },
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{ typeof(char), typeof(string) },
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{ typeof(string), typeof(string) },
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}},
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};
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}
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}
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}
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}
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}
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