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/Expressions/RecordCreator.cs     | 107 +++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 ThirdParty/CsvHelper-master/src/CsvHelper/Expressions/RecordCreator.cs

(limited to 'ThirdParty/CsvHelper-master/src/CsvHelper/Expressions/RecordCreator.cs')

diff --git a/ThirdParty/CsvHelper-master/src/CsvHelper/Expressions/RecordCreator.cs b/ThirdParty/CsvHelper-master/src/CsvHelper/Expressions/RecordCreator.cs
new file mode 100644
index 0000000..d14f0d6
--- /dev/null
+++ b/ThirdParty/CsvHelper-master/src/CsvHelper/Expressions/RecordCreator.cs
@@ -0,0 +1,107 @@
+// 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.Collections.Generic;
+using System.Reflection;
+
+namespace CsvHelper.Expressions
+{
+	/// <summary>
+	/// Base implementation for classes that create records.
+	/// </summary>
+	public abstract class RecordCreator
+	{
+		private readonly Dictionary<Type, Delegate> createRecordFuncs = new Dictionary<Type, Delegate>();
+
+		/// <summary>
+		/// The reader.
+		/// </summary>
+		protected CsvReader Reader { get; private set; }
+
+		/// <summary>
+		/// The expression manager.
+		/// </summary>
+		protected ExpressionManager ExpressionManager { get; private set; }
+
+		/// <summary>
+		/// Initializes a new instance using the given reader.
+		/// </summary>
+		/// <param name="reader">The reader.</param>
+		public RecordCreator(CsvReader reader)
+		{
+			Reader = reader;
+			ExpressionManager = new ExpressionManager(reader);
+		}
+
+		/// <summary>
+		/// Create a record of the given type using the current row.
+		/// </summary>
+		/// <typeparam name="T">The record type.</typeparam>
+		public T Create<T>()
+		{
+			try
+			{
+				return ((Func<T>)GetCreateRecordDelegate(typeof(T))).Invoke();
+			}
+			catch (TargetInvocationException ex)
+			{
+				if (ex.InnerException != null)
+				{
+					throw ex.InnerException;
+				}
+				else
+				{
+					throw;
+				}
+			}
+		}
+
+		/// <summary>
+		/// Create a record of the given type using the current row.
+		/// </summary>
+		/// <param name="recordType">The record type.</param>
+		public object? Create(Type recordType)
+		{
+			try
+			{
+				return GetCreateRecordDelegate(recordType).DynamicInvoke();
+			}
+			catch (TargetInvocationException ex)
+			{
+				if (ex.InnerException != null)
+				{
+					throw ex.InnerException;
+				}
+				else
+				{
+					throw;
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets the delegate to create a record for the given record type. 
+		/// If the delegate doesn't exist, one will be created and cached.
+		/// </summary>
+		/// <param name="recordType">The record type.</param>
+		protected virtual Delegate GetCreateRecordDelegate(Type recordType)
+		{
+			if (!createRecordFuncs.TryGetValue(recordType, out Delegate func))
+			{
+				createRecordFuncs[recordType] = func = CreateCreateRecordDelegate(recordType);
+			}
+
+			return func;
+		}
+
+		/// <summary>
+		/// Creates a <see cref="Delegate"/> of type <see cref="Func{T}"/>
+		/// that will create a record of the given type using the current
+		/// reader row.
+		/// </summary>
+		/// <param name="recordType">The record type.</param>
+		protected abstract Delegate CreateCreateRecordDelegate(Type recordType);
+	}
+}
-- 
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