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

---
 .../CsvHelper/Expressions/PrimitiveRecordWriter.cs | 57 ++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 ThirdParty/CsvHelper-master/src/CsvHelper/Expressions/PrimitiveRecordWriter.cs

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

diff --git a/ThirdParty/CsvHelper-master/src/CsvHelper/Expressions/PrimitiveRecordWriter.cs b/ThirdParty/CsvHelper-master/src/CsvHelper/Expressions/PrimitiveRecordWriter.cs
new file mode 100644
index 0000000..128c5c3
--- /dev/null
+++ b/ThirdParty/CsvHelper-master/src/CsvHelper/Expressions/PrimitiveRecordWriter.cs
@@ -0,0 +1,57 @@
+// 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 CsvHelper.Configuration;
+using CsvHelper.TypeConversion;
+using System;
+using System.Linq.Expressions;
+
+namespace CsvHelper.Expressions
+{
+	/// <summary>
+	/// Writes primitives.
+	/// </summary>
+	public class PrimitiveRecordWriter : RecordWriter
+	{
+		/// <summary>
+		/// Initializes a new instance using the given writer.
+		/// </summary>
+		/// <param name="writer">The writer.</param>
+		public PrimitiveRecordWriter(CsvWriter writer) : base(writer) { }
+
+		/// <summary>
+		/// Creates a <see cref="Delegate"/> of type <see cref="Action{T}"/>
+		/// that will write the given record using the current writer row.
+		/// </summary>
+		/// <typeparam name="T">The record type.</typeparam>
+		/// <param name="record">The record.</param>
+		protected override Action<T> CreateWriteDelegate<T>(T record)
+		{
+			var type = Writer.GetTypeForRecord(record);
+
+			var recordParameter = Expression.Parameter(typeof(T), "record");
+
+			Expression fieldExpression = Expression.Convert(recordParameter, typeof(object));
+
+			var typeConverter = Writer.Context.TypeConverterCache.GetConverter(type);
+			var typeConverterExpression = Expression.Constant(typeConverter);
+			var method = typeof(ITypeConverter).GetMethod(nameof(ITypeConverter.ConvertToString));
+
+			var memberMapData = new MemberMapData(null)
+			{
+				Index = 0,
+				TypeConverter = typeConverter,
+				TypeConverterOptions = TypeConverterOptions.Merge(new TypeConverterOptions(), Writer.Context.TypeConverterOptionsCache.GetOptions(type))
+			};
+			memberMapData.TypeConverterOptions.CultureInfo = Writer.Configuration.CultureInfo;
+
+			fieldExpression = Expression.Call(typeConverterExpression, method, fieldExpression, Expression.Constant(Writer), Expression.Constant(memberMapData));
+			fieldExpression = Expression.Call(Expression.Constant(Writer), nameof(Writer.WriteConvertedField), null, fieldExpression, Expression.Constant(type));
+
+			var action = Expression.Lambda<Action<T>>(fieldExpression, recordParameter).Compile();
+
+			return action;
+		}
+	}
+}
-- 
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