Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Runtime / Serialization / ValueTypeFixupInfo.cs / 1 / ValueTypeFixupInfo.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** Class: ValueTypeFixupInfo ** ** Purpose: Information about an object required to do a value-type ** fixup. This includes the id of the containing object and the ** member info (if the containing body is an object or value type) ** or the array indices (if the containing body is an array.) ** ============================================================*/ namespace System.Runtime.Serialization { using System.Reflection; internal class ValueTypeFixupInfo { //The id of the containing body. This could be a regular //object, another value type, or an array. For obvious reasons, //the containing body can never have both a FieldInfo and //an array index. private long m_containerID; //The FieldInfo into the containing body. This will only //apply if the containing body is a field info or another //value type. private FieldInfo m_parentField; //The array index of the index into the parent. This will only //apply if the containing body is an array. private int[] m_parentIndex; public ValueTypeFixupInfo(long containerID, FieldInfo member, int[] parentIndex) { BCLDebug.Trace("SER", "[ValueTypeFixupInfo.ctor]Creating a VTFI with Container ID: ", containerID, " and MemberInfo ", member); if (containerID==0 && member==null) { m_containerID = containerID; m_parentField = member; m_parentIndex = parentIndex; } //If both member and arrayIndex are null, we don't have enough information to create //a tunnel to do the fixup. if (member==null && parentIndex==null) { throw new ArgumentException(Environment.GetResourceString("Argument_MustSupplyParent")); } //If the member isn't null, we know that they supplied a MemberInfo as the parent. This means //that the arrayIndex must be null because we can't have a FieldInfo into an array. if (member!=null) { if (parentIndex!=null) { throw new ArgumentException(Environment.GetResourceString("Argument_MemberAndArray")); } if (((((FieldInfo)member).FieldType).IsValueType) && containerID==0) { throw new ArgumentException(Environment.GetResourceString("Argument_MustSupplyContainer")); } } m_containerID=containerID; m_parentField = (FieldInfo)member; m_parentIndex = parentIndex; } public long ContainerID { get { return m_containerID; } } public FieldInfo ParentField { get { return m_parentField; } } public int[] ParentIndex { get { return m_parentIndex; } } } }
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