Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Serializer / FormatterServicesNoSerializableCheck.cs / 1305376 / FormatterServicesNoSerializableCheck.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** Class: SerializationFieldInfo ** ** ** Purpose: Provides a methods of representing imaginary fields ** which are unique to serialization. In this case, what we're ** representing is the private members of parent classes. We ** aggregate the FieldInfo associated with this member ** and return a managled form of the name. The name that we ** return is .parentname.fieldname ** ** ============================================================*/ using System; using System.Reflection; using System.Threading; using System.Globalization; using System.Security.Permissions; using System.Collections; using System.Collections.Generic; using System.Workflow.ComponentModel; namespace System.Runtime.Serialization { internal static class FormatterServicesNoSerializableCheck { private struct MemberInfoName { public MemberInfo[] MemberInfo; public string[] Names; } private static Dictionarym_MemberInfoTable = new Dictionary (32); internal static readonly String FakeNameSeparatorString = "+"; private static Object s_FormatterServicesSyncObject = null; private static Object formatterServicesSyncObject { get { if (s_FormatterServicesSyncObject == null) { Object o = new Object(); Interlocked.CompareExchange(ref s_FormatterServicesSyncObject, o, null); } return s_FormatterServicesSyncObject; } } private static MemberInfo[] GetSerializableMembers2(Type type) { // get the list of all fields FieldInfo[] fields = type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance); int countProper = 0; for (int i = 0; i < fields.Length; i++) { if ((fields[i].Attributes & FieldAttributes.NotSerialized) == FieldAttributes.NotSerialized) continue; countProper++; } if (countProper != fields.Length) { FieldInfo[] properFields = new FieldInfo[countProper]; countProper = 0; for (int i = 0; i < fields.Length; i++) { if ((fields[i].Attributes & FieldAttributes.NotSerialized) == FieldAttributes.NotSerialized) continue; properFields[countProper] = fields[i]; countProper++; } return properFields; } else return fields; } private static bool CheckSerializable(Type type) { return true; /* if (type.IsSerializable) { return true; } return false; */ } private static MemberInfo[] InternalGetSerializableMembers(Type type, out string[] typeNames) { typeNames = null; ArrayList allMembers = null; ArrayList allNames = null; MemberInfo[] typeMembers; FieldInfo[] typeFields; Type parentType; //< if (type.IsInterface) { return new MemberInfo[0]; } //Get all of the serializable members in the class to be serialized. typeMembers = GetSerializableMembers2(type); if(typeMembers != null) { typeNames = new string[typeMembers.Length]; for(int index = 0; index < typeMembers.Length; index++) typeNames[index] = typeMembers[index].Name; } //If this class doesn't extend directly from object, walk its hierarchy and //get all of the private and assembly-access fields (e.g. all fields that aren't //virtual) and include them in the list of things to be serialized. parentType = (Type)(type.BaseType); if (parentType != null && parentType != typeof(Object)) { Type[] parentTypes = null; int parentTypeCount = 0; bool classNamesUnique = GetParentTypes(parentType, out parentTypes, out parentTypeCount); if (parentTypeCount > 0) { allMembers = new ArrayList(); allNames = new ArrayList(); for (int i = 0; i < parentTypeCount; i++) { parentType = (Type)parentTypes[i]; if (!CheckSerializable(parentType)) { throw new SerializationException();//String.Format(Environment.GetResourceString("Serialization_NonSerType"), parentType.FullName, parentType.Module.Assembly.FullName)); } typeFields = parentType.GetFields(BindingFlags.NonPublic | BindingFlags.Instance); String typeName = classNamesUnique ? parentType.Name : parentType.FullName; foreach (FieldInfo field in typeFields) { // Family and Assembly fields will be gathered by the type itself. if (field.IsPrivate && !field.IsNotSerialized) { allMembers.Add(field); allNames.Add(String.Concat(typeName, FakeNameSeparatorString, field.Name)); //allMembers.Add(new SerializationFieldInfo(field, typeName)); } } } //If we actually found any new MemberInfo's, we need to create a new MemberInfo array and //copy all of the members which we've found so far into that. if (allMembers != null && allMembers.Count > 0) { MemberInfo[] membersTemp = new MemberInfo[allMembers.Count + typeMembers.Length]; Array.Copy(typeMembers, membersTemp, typeMembers.Length); allMembers.CopyTo(membersTemp, typeMembers.Length); typeMembers = membersTemp; string[] namesTemp = new string[allNames.Count + typeNames.Length]; Array.Copy(typeNames, namesTemp, typeNames.Length); allNames.CopyTo(namesTemp, typeNames.Length); typeNames = namesTemp; } } } return typeMembers; } private static bool GetParentTypes(Type parentType, out Type[] parentTypes, out int parentTypeCount) { //Check if there are any dup class names. Then we need to include as part of //typeName to prefix the Field names in SerializationFieldInfo /*out*/ parentTypes = null; /*out*/ parentTypeCount = 0; bool unique = true; for (Type t1 = parentType; t1 != typeof(object); t1 = t1.BaseType) { if (t1.IsInterface) continue; string t1Name = t1.Name; for (int i = 0; unique && i < parentTypeCount; i++) { string t2Name = parentTypes[i].Name; if (t2Name.Length == t1Name.Length && t2Name[0] == t1Name[0] && t1Name == t2Name) { unique = false; break; } } //expand array if needed if (parentTypes == null || parentTypeCount == parentTypes.Length) { Type[] tempParentTypes = new Type[Math.Max(parentTypeCount * 2, 12)]; if (parentTypes != null) Array.Copy(parentTypes, 0, tempParentTypes, 0, parentTypeCount); parentTypes = tempParentTypes; } parentTypes[parentTypeCount++] = t1; } return unique; } // Get all of the Serializable members for a particular class. For all practical intents and // purposes, this is the non-transient, non-static members (fields and properties). In order to // be included, properties must have both a getter and a setter. N.B.: A class // which implements ISerializable or has a serialization surrogate may not use all of these members // (or may have additional members). [SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.SerializationFormatter)] public static MemberInfo[] GetSerializableMembers(Type type, out string[] names) { names = null; MemberInfoName members; if (type == null) { throw new ArgumentNullException("type"); } lock (formatterServicesSyncObject) { //If we've already gathered the members for this type, just return them if (m_MemberInfoTable.TryGetValue(type, out members)) { names = members.Names; return members.MemberInfo; } } members.MemberInfo = InternalGetSerializableMembers(type, out members.Names); lock (formatterServicesSyncObject) { //If we've already gathered the members for this type, just return them. MemberInfoName insertedMembers; if (m_MemberInfoTable.TryGetValue(type, out insertedMembers)) { names = insertedMembers.Names; return insertedMembers.MemberInfo; } m_MemberInfoTable[type] = members; } names = members.Names; return members.MemberInfo; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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