73 lines
2.7 KiB
C#
73 lines
2.7 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="assemblycache.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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//------------------------------------------------------------------------------
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//ThisAssembly class keeps a map of the following:
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//AssemblyName to AssemblyID
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//TypeName to TypeID
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//AssemblyID to AssemblyRef and State
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//TypeID to TypeRef and AssemblyId
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//
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//Adding an assembly to this class will NOT enable users to create types from that assembly. Users should explicitely add type details and link types to assemblies.
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// This class also registers for assembly resolve events so that dependent assemblies can be resolved if they are registered.
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//This class does NOT know anything about assembly dependencies. It simply loads assemblies as handed over to it.
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//Users can take advantage of connection pooling by tying this instance to a pooling-aware component.
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//------------------------------------------------------------------------------
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using System;
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using System.Collections;
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using System.Runtime.InteropServices;
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using System.Reflection;
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using System.Globalization;
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using System.Diagnostics;
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using System.Data.Sql;
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using System.Data.SqlTypes;
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using System.IO;
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using System.Security;
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using System.Security.Policy;
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using System.Security.Permissions;
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using System.Data.Common;
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using Microsoft.SqlServer.Server;
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namespace System.Data.SqlClient {
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internal sealed class AssemblyCache {
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private AssemblyCache() { /* prevent utility class from being insantiated*/
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}
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internal static int GetLength(Object inst){
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//caller should have allocated enough, based on MaxByteSize
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return SerializationHelperSql9.SizeInBytes(inst);
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}
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//The attribute we are looking for is now moved to an external dll that server provides. If the name is changed.
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//then we we have to make corresponding changes here.
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//please also change sqludcdatetime.cs, sqltime.cs and sqldate.cs
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internal static SqlUdtInfo GetInfoFromType(Type t) {
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Debug.Assert(t != null, "Type object cant be NULL");
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Type orig = t;
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do {
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SqlUdtInfo attr = SqlUdtInfo.TryGetFromType(t);
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if (attr != null ) {
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return attr;
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}
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else {
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t = t.BaseType;
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}
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}
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while (t != null);
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throw SQL.UDTInvalidSqlType(orig.AssemblyQualifiedName);
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}
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}
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}
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