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/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / clr / src / BCL / System / Runtime / Serialization / SerializationInfoEnumerator.cs / 1 / SerializationInfoEnumerator.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** Class: SerializationInfoEnumerator ** ** ** Purpose: A formatter-friendly mechanism for walking all of ** the data in a SerializationInfo. Follows the IEnumerator ** mechanism from Collections. ** ** ============================================================*/ namespace System.Runtime.Serialization { using System; using System.Collections; // // The tuple returned by SerializationInfoEnumerator.Current. // [System.Runtime.InteropServices.ComVisible(true)] public struct SerializationEntry { private Type m_type; private Object m_value; private String m_name; public Object Value { get { return m_value; } } public String Name { get { return m_name; } } public Type ObjectType { get { return m_type; } } internal SerializationEntry(String entryName, Object entryValue, Type entryType) { m_value = entryValue; m_name = entryName; m_type = entryType; } } // // A simple enumerator over the values stored in the SerializationInfo. // This does not snapshot the values, it just keeps pointers to the // member variables of the SerializationInfo that created it. // [System.Runtime.InteropServices.ComVisible(true)] public sealed class SerializationInfoEnumerator : IEnumerator { String[] m_members; Object[] m_data; Type[] m_types; int m_numItems; int m_currItem; bool m_current; internal SerializationInfoEnumerator(String[] members, Object[] info, Type[] types, int numItems) { BCLDebug.Assert(members!=null, "[SerializationInfoEnumerator.ctor]members!=null"); BCLDebug.Assert(info!=null, "[SerializationInfoEnumerator.ctor]info!=null"); BCLDebug.Assert(types!=null, "[SerializationInfoEnumerator.ctor]types!=null"); BCLDebug.Assert(numItems>=0, "[SerializationInfoEnumerator.ctor]numItems>=0"); BCLDebug.Assert(members.Length>=numItems, "[SerializationInfoEnumerator.ctor]members.Length>=numItems"); BCLDebug.Assert(info.Length>=numItems, "[SerializationInfoEnumerator.ctor]info.Length>=numItems"); BCLDebug.Assert(types.Length>=numItems, "[SerializationInfoEnumerator.ctor]types.Length>=numItems"); m_members = members; m_data = info; m_types = types; //The MoveNext semantic is much easier if we enforce that [0..m_numItems] are valid entries //in the enumerator, hence we subtract 1. m_numItems = numItems-1; m_currItem = -1; m_current = false; } public bool MoveNext() { if (m_currItemObject IEnumerator.Current { //Actually returns a SerializationEntry get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return (Object)(new SerializationEntry(m_members[m_currItem], m_data[m_currItem], m_types[m_currItem])); } } public SerializationEntry Current { //Actually returns a SerializationEntry get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return (new SerializationEntry(m_members[m_currItem], m_data[m_currItem], m_types[m_currItem])); } } public void Reset() { m_currItem = -1; m_current = false; } public String Name { get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return m_members[m_currItem]; } } public Object Value { get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return m_data[m_currItem]; } } public Type ObjectType { get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return m_types[m_currItem]; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** Class: SerializationInfoEnumerator ** ** ** Purpose: A formatter-friendly mechanism for walking all of ** the data in a SerializationInfo. Follows the IEnumerator ** mechanism from Collections. ** ** ============================================================*/ namespace System.Runtime.Serialization { using System; using System.Collections; // // The tuple returned by SerializationInfoEnumerator.Current. // [System.Runtime.InteropServices.ComVisible(true)] public struct SerializationEntry { private Type m_type; private Object m_value; private String m_name; public Object Value { get { return m_value; } } public String Name { get { return m_name; } } public Type ObjectType { get { return m_type; } } internal SerializationEntry(String entryName, Object entryValue, Type entryType) { m_value = entryValue; m_name = entryName; m_type = entryType; } } // // A simple enumerator over the values stored in the SerializationInfo. // This does not snapshot the values, it just keeps pointers to the // member variables of the SerializationInfo that created it. // [System.Runtime.InteropServices.ComVisible(true)] public sealed class SerializationInfoEnumerator : IEnumerator { String[] m_members; Object[] m_data; Type[] m_types; int m_numItems; int m_currItem; bool m_current; internal SerializationInfoEnumerator(String[] members, Object[] info, Type[] types, int numItems) { BCLDebug.Assert(members!=null, "[SerializationInfoEnumerator.ctor]members!=null"); BCLDebug.Assert(info!=null, "[SerializationInfoEnumerator.ctor]info!=null"); BCLDebug.Assert(types!=null, "[SerializationInfoEnumerator.ctor]types!=null"); BCLDebug.Assert(numItems>=0, "[SerializationInfoEnumerator.ctor]numItems>=0"); BCLDebug.Assert(members.Length>=numItems, "[SerializationInfoEnumerator.ctor]members.Length>=numItems"); BCLDebug.Assert(info.Length>=numItems, "[SerializationInfoEnumerator.ctor]info.Length>=numItems"); BCLDebug.Assert(types.Length>=numItems, "[SerializationInfoEnumerator.ctor]types.Length>=numItems"); m_members = members; m_data = info; m_types = types; //The MoveNext semantic is much easier if we enforce that [0..m_numItems] are valid entries //in the enumerator, hence we subtract 1. m_numItems = numItems-1; m_currItem = -1; m_current = false; } public bool MoveNext() { if (m_currItem Object IEnumerator.Current { //Actually returns a SerializationEntry get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return (Object)(new SerializationEntry(m_members[m_currItem], m_data[m_currItem], m_types[m_currItem])); } } public SerializationEntry Current { //Actually returns a SerializationEntry get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return (new SerializationEntry(m_members[m_currItem], m_data[m_currItem], m_types[m_currItem])); } } public void Reset() { m_currItem = -1; m_current = false; } public String Name { get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return m_members[m_currItem]; } } public Object Value { get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return m_data[m_currItem]; } } public Type ObjectType { get { if (m_current==false) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumOpCantHappen")); } return m_types[m_currItem]; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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