From 2a1cd4fda8a4a8e649910d16b4dfa1ce7ae63543 Mon Sep 17 00:00:00 2001
From: chai <215380520@qq.com>
Date: Fri, 12 May 2023 09:24:40 +0800
Subject: *misc

---
 .../src/CsvHelper/Configuration/ClassMap`1.cs      | 112 +++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 ThirdParty/CsvHelper-master/src/CsvHelper/Configuration/ClassMap`1.cs

(limited to 'ThirdParty/CsvHelper-master/src/CsvHelper/Configuration/ClassMap`1.cs')

diff --git a/ThirdParty/CsvHelper-master/src/CsvHelper/Configuration/ClassMap`1.cs b/ThirdParty/CsvHelper-master/src/CsvHelper/Configuration/ClassMap`1.cs
new file mode 100644
index 0000000..d14c317
--- /dev/null
+++ b/ThirdParty/CsvHelper-master/src/CsvHelper/Configuration/ClassMap`1.cs
@@ -0,0 +1,112 @@
+// Copyright 2009-2022 Josh Close
+// This file is a part of CsvHelper and is dual licensed under MS-PL and Apache 2.0.
+// See LICENSE.txt for details or visit http://www.opensource.org/licenses/ms-pl.html for MS-PL and http://opensource.org/licenses/Apache-2.0 for Apache 2.0.
+// https://github.com/JoshClose/CsvHelper
+using System;
+using System.Linq.Expressions;
+using System.Reflection;
+
+namespace CsvHelper.Configuration
+{
+	/// <summary>
+	/// Maps class members to CSV fields.
+	/// </summary>
+	/// <typeparam name="TClass">The <see cref="System.Type"/> of class to map.</typeparam>
+	public abstract class ClassMap<TClass> : ClassMap
+	{
+		/// <summary>
+		/// Creates an instance of <see cref="ClassMap{TClass}"/>.
+		/// </summary>
+		public ClassMap() : base(typeof(TClass)) { }
+
+		/// <summary>
+		/// Maps a member to a CSV field.
+		/// </summary>
+		/// <param name="expression">The member to map.</param>
+		/// <param name="useExistingMap">If true, an existing map will be used if available.
+		/// If false, a new map is created for the same member.</param>
+		/// <returns>The member mapping.</returns>
+		public virtual MemberMap<TClass, TMember> Map<TMember>(Expression<Func<TClass, TMember>> expression, bool useExistingMap = true)
+		{
+			var (classMap, member) = GetMemberMap(expression);
+			var memberMap = classMap.Map(typeof(TClass), member, useExistingMap); ;
+
+			return (MemberMap<TClass, TMember>)memberMap;
+		}
+
+		/// <summary>
+		/// Maps a member to a CSV field.
+		/// </summary>
+		/// <param name="expression">The member to map.</param>
+		/// <param name="useExistingMap">If true, an existing map will be used if available.
+		/// If false, a new map is created for the same member.</param>
+		/// <returns>The member mapping.</returns>
+		public virtual MemberMap Map<T>(Expression<Func<T, object>> expression, bool useExistingMap = true)
+		{
+			var (classMap, member) = GetMemberMap(expression);
+			var memberMap = classMap.Map(typeof(TClass), member, useExistingMap);
+
+			return memberMap;
+		}
+
+		/// <summary>
+		/// Meant for internal use only. 
+		/// Maps a member to another class map. When this is used, accessing a property through
+		/// sub-property mapping later won't work. You can only use one or the other. When using
+		/// this, ConvertUsing will also not work.
+		/// </summary>
+		/// <typeparam name="TClassMap">The type of the class map.</typeparam>
+		/// <param name="expression">The expression.</param>
+		/// <param name="constructorArgs">Constructor arguments used to create the reference map.</param>
+		/// <returns>The reference mapping for the member.</returns>
+		public virtual MemberReferenceMap References<TClassMap>(Expression<Func<TClass, object>> expression, params object[] constructorArgs) where TClassMap : ClassMap
+		{
+			var member = ReflectionHelper.GetMember(expression);
+			return References(typeof(TClassMap), member, constructorArgs);
+		}
+
+		private (ClassMap, MemberInfo) GetMemberMap<TModel, TProperty>(Expression<Func<TModel, TProperty>> expression)
+		{
+			var stack = ReflectionHelper.GetMembers(expression);
+			if (stack.Count == 0)
+			{
+				throw new InvalidOperationException($"No members were found in expression '{expression}'.");
+			}
+
+			ClassMap currentClassMap = this;
+			MemberInfo member;
+
+			if (stack.Count > 1)
+			{
+				// We need to add a reference map for every sub member.
+				while (stack.Count > 1)
+				{
+					member = stack.Pop();
+					Type mapType;
+					var property = member as PropertyInfo;
+					var field = member as FieldInfo;
+					if (property != null)
+					{
+						mapType = typeof(DefaultClassMap<>).MakeGenericType(property.PropertyType);
+					}
+					else if (field != null)
+					{
+						mapType = typeof(DefaultClassMap<>).MakeGenericType(field.FieldType);
+					}
+					else
+					{
+						throw new InvalidOperationException("The given expression was not a property or a field.");
+					}
+
+					var referenceMap = currentClassMap.References(mapType, member);
+					currentClassMap = referenceMap.Data.Mapping;
+				}
+			}
+
+			// Add the member map to the last reference map.
+			member = stack.Pop();
+
+			return (currentClassMap, member);
+		}
+	}
+}
-- 
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