57 lines
2.9 KiB
C#
57 lines
2.9 KiB
C#
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//------------------------------------------------------------------------------
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// <copyright file="GreenMethods.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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// <owner current="true" primary="true">[....]</owner>
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// <owner current="true" primary="false">[....]</owner>
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//------------------------------------------------------------------------------
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using System;
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using System.Data.Common;
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using System.Diagnostics;
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using System.Reflection;
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using System.Security.Permissions;
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namespace System.Data.Common {
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internal static class GreenMethods {
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private const string ExtensionAssemblyRef = "System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=" + AssemblyRef.EcmaPublicKey;
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// For performance, we should convert these calls to using DynamicMethod with a Delegate, or
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// even better, friend assemblies if its possible; so far there's only one of these per
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// AppDomain, so we're OK.
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//------------------------------------------------------------------------------
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// Access to the DbProviderServices type
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private const string SystemDataCommonDbProviderServices_TypeName = "System.Data.Common.DbProviderServices, " + ExtensionAssemblyRef;
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internal static Type SystemDataCommonDbProviderServices_Type = Type.GetType(SystemDataCommonDbProviderServices_TypeName, false);
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//------------------------------------------------------------------------------
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// Access to the SqlProviderServices class singleton instance;
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private const string SystemDataSqlClientSqlProviderServices_TypeName = "System.Data.SqlClient.SqlProviderServices, " + ExtensionAssemblyRef;
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private static FieldInfo SystemDataSqlClientSqlProviderServices_Instance_FieldInfo;
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internal static object SystemDataSqlClientSqlProviderServices_Instance() {
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if (null == SystemDataSqlClientSqlProviderServices_Instance_FieldInfo) {
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Type t = Type.GetType(SystemDataSqlClientSqlProviderServices_TypeName, false);
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if (null != t) {
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SystemDataSqlClientSqlProviderServices_Instance_FieldInfo = t.GetField("Instance", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Static);
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}
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}
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object result = SystemDataSqlClientSqlProviderServices_Instance_GetValue();
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return result;
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}
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[System.Security.Permissions.ReflectionPermission(System.Security.Permissions.SecurityAction.Assert, MemberAccess=true)]
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private static object SystemDataSqlClientSqlProviderServices_Instance_GetValue() {
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object result = null;
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if (null != SystemDataSqlClientSqlProviderServices_Instance_FieldInfo) {
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result = SystemDataSqlClientSqlProviderServices_Instance_FieldInfo.GetValue(null);
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}
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return result;
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}
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}
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}
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