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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.Runtime.Serialization
{
using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using System.Security;
using System.Threading;
using System.Xml;
using DataContractDictionary = System.Collections.Generic.Dictionary<System.Xml.XmlQualifiedName, DataContract>;
#if USE_REFEMIT
public sealed class ClassDataContract : DataContract
#else
internal sealed class ClassDataContract : DataContract
#endif
{
[Fx.Tag.SecurityNote(Miscellaneous =
"RequiresReview - XmlDictionaryString(s) representing the XML namespaces for class members."
+ "statically cached and used from IL generated code. should ideally be Critical."
+ "marked SecurityNode to be callable from transparent IL generated code."
+ "not changed to property to avoid regressing performance; any changes to initalization should be reviewed.")]
public XmlDictionaryString[] ContractNamespaces;
[Fx.Tag.SecurityNote(Miscellaneous =
"RequiresReview - XmlDictionaryString(s) representing the XML element names for class members."
+ "statically cached and used from IL generated code. should ideally be Critical."
+ "marked SecurityNode to be callable from transparent IL generated code."
+ "not changed to property to avoid regressing performance; any changes to initalization should be reviewed.")]
public XmlDictionaryString[] MemberNames;
[Fx.Tag.SecurityNote(Miscellaneous =
"RequiresReview - XmlDictionaryString(s) representing the XML namespaces for class members."
+ "statically cached and used from IL generated code. should ideally be Critical."
+ "marked SecurityNode to be callable from transparent IL generated code."
+ "not changed to property to avoid regressing performance; any changes to initalization should be reviewed.")]
public XmlDictionaryString[] MemberNamespaces;
[Fx.Tag.SecurityNote(Critical = "XmlDictionaryString representing the XML namespaces for members of class."
+ "Statically cached and used from IL generated code.")]
[SecurityCritical]
XmlDictionaryString[] childElementNamespaces;
[Fx.Tag.SecurityNote(Critical = "Holds instance of CriticalHelper which keeps state that is cached statically for serialization. "
+ "Static fields are marked SecurityCritical or readonly to prevent data from being modified or leaked to other components in appdomain.")]
[SecurityCritical]
ClassDataContractCriticalHelper helper;
[Fx.Tag.SecurityNote(Critical = "Initializes SecurityCritical field 'helper'",
Safe = "Doesn't leak anything.")]
[SecuritySafeCritical]
internal ClassDataContract()
: base(new ClassDataContractCriticalHelper())
{
InitClassDataContract();
}
[Fx.Tag.SecurityNote(Critical = "Initializes SecurityCritical field 'helper'",
Safe = "Doesn't leak anything.")]
[SecuritySafeCritical]
internal ClassDataContract(Type type)
: base(new ClassDataContractCriticalHelper(type))
{
InitClassDataContract();
}
[Fx.Tag.SecurityNote(Critical = "Initializes SecurityCritical field 'helper'",
Safe = "Doesn't leak anything.")]
[SecuritySafeCritical]
ClassDataContract(Type type, XmlDictionaryString ns, string[] memberNames)
: base(new ClassDataContractCriticalHelper(type, ns, memberNames))
{
InitClassDataContract();
}
[Fx.Tag.SecurityNote(Critical = "Initializes SecurityCritical fields; called from all constructors.")]
[SecurityCritical]
void InitClassDataContract()
{
this.helper = base.Helper as ClassDataContractCriticalHelper;
this.ContractNamespaces = helper.ContractNamespaces;
this.MemberNames = helper.MemberNames;
this.MemberNamespaces = helper.MemberNamespaces;
}
internal ClassDataContract BaseContract
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical baseContract property.",
Safe = "baseContract only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.BaseContract; }
[Fx.Tag.SecurityNote(Critical = "Sets the critical baseContract property.")]
[SecurityCritical]
set { helper.BaseContract = value; }
}
internal List<DataMember> Members
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical members property.",
Safe = "members only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.Members; }
[Fx.Tag.SecurityNote(Critical = "Sets the critical members property.",
Safe = "Protected for write if contract has underlyingType.")]
[SecurityCritical]
set { helper.Members = value; }
}
public XmlDictionaryString[] ChildElementNamespaces
{
[Fx.Tag.SecurityNote(Critical = "Sets the critical childElementNamespaces property.",
Safe = "childElementNamespaces only needs to be protected for write; initialized in getter if null.")]
[SecuritySafeCritical]
get
{
if (this.childElementNamespaces == null)
{
lock (this)
{
if (this.childElementNamespaces == null)
{
if (helper.ChildElementNamespaces == null)
{
XmlDictionaryString[] tempChildElementamespaces = CreateChildElementNamespaces();
Thread.MemoryBarrier();
helper.ChildElementNamespaces = tempChildElementamespaces;
}
this.childElementNamespaces = helper.ChildElementNamespaces;
}
}
}
return this.childElementNamespaces;
}
}
internal MethodInfo OnSerializing
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical onSerializing property.",
Safe = "onSerializing only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.OnSerializing; }
}
internal MethodInfo OnSerialized
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical onSerialized property.",
Safe = "onSerialized only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.OnSerialized; }
}
internal MethodInfo OnDeserializing
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical onDeserializing property.",
Safe = "onDeserializing only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.OnDeserializing; }
}
internal MethodInfo OnDeserialized
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical onDeserialized property.",
Safe = "onDeserialized only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.OnDeserialized; }
}
internal MethodInfo ExtensionDataSetMethod
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical extensionDataSetMethod property.",
Safe = "extensionDataSetMethod only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.ExtensionDataSetMethod; }
}
internal override DataContractDictionary KnownDataContracts
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical knownDataContracts property.",
Safe = "knownDataContracts only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.KnownDataContracts; }
[Fx.Tag.SecurityNote(Critical = "Sets the critical knownDataContracts property.",
Safe = "Protected for write if contract has underlyingType.")]
[SecurityCritical]
set { helper.KnownDataContracts = value; }
}
internal override bool IsISerializable
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical isISerializable property.",
Safe = "isISerializable only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.IsISerializable; }
[Fx.Tag.SecurityNote(Critical = "Sets the critical isISerializable property.",
Safe = "Protected for write if contract has underlyingType.")]
[SecurityCritical]
set { helper.IsISerializable = value; }
}
internal bool IsNonAttributedType
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical IsNonAttributedType property.",
Safe = "IsNonAttributedType only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.IsNonAttributedType; }
}
internal bool HasDataContract
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical hasDataContract property.",
Safe = "hasDataContract only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.HasDataContract; }
}
internal bool HasExtensionData
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical hasExtensionData property.",
Safe = "hasExtensionData only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.HasExtensionData; }
}
internal string SerializationExceptionMessage
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical serializationExceptionMessage property.",
Safe = "serializationExceptionMessage only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.SerializationExceptionMessage; }
}
internal string DeserializationExceptionMessage
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical deserializationExceptionMessage property.",
Safe = "deserializationExceptionMessage only needs to be protected for write.")]
[SecuritySafeCritical]
get { return helper.DeserializationExceptionMessage; }
}
internal bool IsReadOnlyContract
{
get { return this.DeserializationExceptionMessage != null; }
}
[Fx.Tag.SecurityNote(Critical = "Fetches information about which constructor should be used to initialize ISerializable types.",
Safe = "only needs to be protected for write.")]
[SecuritySafeCritical]
internal ConstructorInfo GetISerializableConstructor()
{
return helper.GetISerializableConstructor();
}
[Fx.Tag.SecurityNote(Critical = "Fetches information about which constructor should be used to initialize non-attributed types that are valid for serialization.",
Safe = "only needs to be protected for write.")]
[SecuritySafeCritical]
internal ConstructorInfo GetNonAttributedTypeConstructor()
{
return helper.GetNonAttributedTypeConstructor();
}
internal XmlFormatClassWriterDelegate XmlFormatWriterDelegate
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical xmlFormatWriterDelegate property.",
Safe = "xmlFormatWriterDelegate only needs to be protected for write; initialized in getter if null.")]
[SecuritySafeCritical]
get
{
if (helper.XmlFormatWriterDelegate == null)
{
lock (this)
{
if (helper.XmlFormatWriterDelegate == null)
{
XmlFormatClassWriterDelegate tempDelegate = new XmlFormatWriterGenerator().GenerateClassWriter(this);
Thread.MemoryBarrier();
helper.XmlFormatWriterDelegate = tempDelegate;
}
}
}
return helper.XmlFormatWriterDelegate;
}
}
internal XmlFormatClassReaderDelegate XmlFormatReaderDelegate
{
[Fx.Tag.SecurityNote(Critical = "Fetches the critical xmlFormatReaderDelegate property.",
Safe = "xmlFormatReaderDelegate only needs to be protected for write; initialized in getter if null.")]
[SecuritySafeCritical]
get
{
if (helper.XmlFormatReaderDelegate == null)
{
lock (this)
{
if (helper.XmlFormatReaderDelegate == null)
{
if (this.IsReadOnlyContract)
{
ThrowInvalidDataContractException(helper.DeserializationExceptionMessage, null /*type*/);
}
XmlFormatClassReaderDelegate tempDelegate = new XmlFormatReaderGenerator().GenerateClassReader(this);
Thread.MemoryBarrier();
helper.XmlFormatReaderDelegate = tempDelegate;
}
}
}
return helper.XmlFormatReaderDelegate;
}
}
internal static ClassDataContract CreateClassDataContractForKeyValue(Type type, XmlDictionaryString ns, string[] memberNames)
{
return new ClassDataContract(type, ns, memberNames);
}
internal static void CheckAndAddMember(List<DataMember> members, DataMember memberContract, Dictionary<string, DataMember> memberNamesTable)
{
DataMember existingMemberContract;
if (memberNamesTable.TryGetValue(memberContract.Name, out existingMemberContract))
{
Type declaringType = memberContract.MemberInfo.DeclaringType;
DataContract.ThrowInvalidDataContractException(
SR.GetString((declaringType.IsEnum ? SR.DupEnumMemberValue : SR.DupMemberName),
existingMemberContract.MemberInfo.Name,
memberContract.MemberInfo.Name,
DataContract.GetClrTypeFullName(declaringType),
memberContract.Name),
declaringType);
}
memberNamesTable.Add(memberContract.Name, memberContract);
members.Add(memberContract);
}
internal static XmlDictionaryString GetChildNamespaceToDeclare(DataContract dataContract, Type childType, XmlDictionary dictionary)
{
childType = DataContract.UnwrapNullableType(childType);
if (!childType.IsEnum && !Globals.TypeOfIXmlSerializable.IsAssignableFrom(childType)
&& DataContract.GetBuiltInDataContract(childType) == null && childType != Globals.TypeOfDBNull)
{
string ns = DataContract.GetStableName(childType).Namespace;
if (ns.Length > 0 && ns != dataContract.Namespace.Value)
return dictionary.Add(ns);
}
return null;
}
[Fx.Tag.SecurityNote(Miscellaneous = "RequiresReview - callers may need to depend on isNonAttributedType for a security decision."
+ "isNonAttributedType must be calculated correctly."
+ "IsNonAttributedTypeValidForSerialization is used as part of the isNonAttributedType calculation and is therefore marked with SecurityNote.",
Safe = "Does not let caller influence isNonAttributedType calculation; no harm in leaking value.")]
// check whether a corresponding update is required in DataContractCriticalHelper.CreateDataContract
static internal bool IsNonAttributedTypeValidForSerialization(Type type)
{
if (type.IsArray)
return false;
if (type.IsEnum)
return false;
if (type.IsGenericParameter)
return false;
if (Globals.TypeOfIXmlSerializable.IsAssignableFrom(type))
return false;
if (type.IsPointer)
return false;
if (type.IsDefined(Globals.TypeOfCollectionDataContractAttribute, false))
return false;
Type[] interfaceTypes = type.GetInterfaces();
foreach (Type interfaceType in interfaceTypes)
{
if (CollectionDataContract.IsCollectionInterface(interfaceType))
return false;
}
if (type.IsSerializable)
return false;
if (Globals.TypeOfISerializable.IsAssignableFrom(type))
return false;
if (type.IsDefined(Globals.TypeOfDataContractAttribute, false))
return false;
if (type == Globals.TypeOfExtensionDataObject)
return false;
if (type.IsValueType)
{
return type.IsVisible;
}
else
{
return (type.IsVisible &&
type.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public, null, Globals.EmptyTypeArray, null) != null);
}
}
XmlDictionaryString[] CreateChildElementNamespaces()
{
if (Members == null)
return null;
XmlDictionaryString[] baseChildElementNamespaces = null;
if (this.BaseContract != null)
baseChildElementNamespaces = this.BaseContract.ChildElementNamespaces;
int baseChildElementNamespaceCount = (baseChildElementNamespaces != null) ? baseChildElementNamespaces.Length : 0;
XmlDictionaryString[] childElementNamespaces = new XmlDictionaryString[Members.Count + baseChildElementNamespaceCount];
if (baseChildElementNamespaceCount > 0)
Array.Copy(baseChildElementNamespaces, 0, childElementNamespaces, 0, baseChildElementNamespaces.Length);
XmlDictionary dictionary = new XmlDictionary();
for (int i = 0; i < this.Members.Count; i++)
{
childElementNamespaces[i + baseChildElementNamespaceCount] = GetChildNamespaceToDeclare(this, this.Members[i].MemberType, dictionary);
}
return childElementNamespaces;
}
[Fx.Tag.SecurityNote(Critical = "Calls critical method on helper.",
Safe = "Doesn't leak anything.")]
[SecuritySafeCritical]
void EnsureMethodsImported()
{
helper.EnsureMethodsImported();
}
public override void WriteXmlValue(XmlWriterDelegator xmlWriter, object obj, XmlObjectSerializerWriteContext context)
{
XmlFormatWriterDelegate(xmlWriter, obj, context, this);
}
public override object ReadXmlValue(XmlReaderDelegator xmlReader, XmlObjectSerializerReadContext context)
{
xmlReader.Read();
object o = XmlFormatReaderDelegate(xmlReader, context, MemberNames, MemberNamespaces);
xmlReader.ReadEndElement();
return o;
}
[Fx.Tag.SecurityNote(Miscellaneous = "RequiresReview - calculates whether this class requires MemberAccessPermission for deserialization."
+ "Since this information is used to determine whether to give the generated code access "
+ "permissions to private members, any changes to the logic should be reviewed.")]
internal bool RequiresMemberAccessForRead(SecurityException securityException)
{
EnsureMethodsImported();
if (!IsTypeVisible(UnderlyingType))
{
if (securityException != null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractTypeNotPublic,
DataContract.GetClrTypeFullName(UnderlyingType)),
securityException));
}
return true;
}
if (this.BaseContract != null && this.BaseContract.RequiresMemberAccessForRead(securityException))
return true;
if (ConstructorRequiresMemberAccess(GetISerializableConstructor()))
{
if (securityException != null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustISerializableNoPublicConstructor,
DataContract.GetClrTypeFullName(UnderlyingType)),
securityException));
}
return true;
}
if (ConstructorRequiresMemberAccess(GetNonAttributedTypeConstructor()))
{
if (securityException != null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustNonAttributedSerializableTypeNoPublicConstructor,
DataContract.GetClrTypeFullName(UnderlyingType)),
securityException));
}
return true;
}
if (MethodRequiresMemberAccess(this.OnDeserializing))
{
if (securityException != null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractOnDeserializingNotPublic,
DataContract.GetClrTypeFullName(UnderlyingType),
this.OnDeserializing.Name),
securityException));
}
return true;
}
if (MethodRequiresMemberAccess(this.OnDeserialized))
{
if (securityException != null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractOnDeserializedNotPublic,
DataContract.GetClrTypeFullName(UnderlyingType),
this.OnDeserialized.Name),
securityException));
}
return true;
}
if (this.Members != null)
{
for (int i = 0; i < this.Members.Count; i++)
{
if (this.Members[i].RequiresMemberAccessForSet())
{
if (securityException != null)
{
if (this.Members[i].MemberInfo is FieldInfo)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractFieldSetNotPublic,
DataContract.GetClrTypeFullName(UnderlyingType),
this.Members[i].MemberInfo.Name),
securityException));
}
else
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractPropertySetNotPublic,
DataContract.GetClrTypeFullName(UnderlyingType),
this.Members[i].MemberInfo.Name),
securityException));
}
}
return true;
}
}
}
return false;
}
[Fx.Tag.SecurityNote(Miscellaneous = "RequiresReview - calculates whether this class requires MemberAccessPermission for serialization."
+ " Since this information is used to determine whether to give the generated code access"
+ " permissions to private members, any changes to the logic should be reviewed.")]
internal bool RequiresMemberAccessForWrite(SecurityException securityException)
{
EnsureMethodsImported();
if (!IsTypeVisible(UnderlyingType))
{
if (securityException != null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractTypeNotPublic,
DataContract.GetClrTypeFullName(UnderlyingType)),
securityException));
}
return true;
}
if (this.BaseContract != null && this.BaseContract.RequiresMemberAccessForWrite(securityException))
return true;
if (MethodRequiresMemberAccess(this.OnSerializing))
{
if (securityException != null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractOnSerializingNotPublic,
DataContract.GetClrTypeFullName(this.UnderlyingType),
this.OnSerializing.Name),
securityException));
}
return true;
}
if (MethodRequiresMemberAccess(this.OnSerialized))
{
if (securityException != null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractOnSerializedNotPublic,
DataContract.GetClrTypeFullName(UnderlyingType),
this.OnSerialized.Name),
securityException));
}
return true;
}
if (this.Members != null)
{
for (int i = 0; i < this.Members.Count; i++)
{
if (this.Members[i].RequiresMemberAccessForGet())
{
if (securityException != null)
{
if (this.Members[i].MemberInfo is FieldInfo)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractFieldGetNotPublic,
DataContract.GetClrTypeFullName(UnderlyingType),
this.Members[i].MemberInfo.Name),
securityException));
}
else
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new SecurityException(SR.GetString(
SR.PartialTrustDataContractPropertyGetNotPublic,
DataContract.GetClrTypeFullName(UnderlyingType),
this.Members[i].MemberInfo.Name),
securityException));
}
}
return true;
}
}
}
return false;
}
[Fx.Tag.SecurityNote(Critical = "Holds all state used for (de)serializing classes."
+ " Since the data is cached statically, we lock down access to it.")]
[SecurityCritical(SecurityCriticalScope.Everything)]
class ClassDataContractCriticalHelper : DataContract.DataContractCriticalHelper
{
ClassDataContract baseContract;
List<DataMember> members;
MethodInfo onSerializing, onSerialized;
MethodInfo onDeserializing, onDeserialized;
MethodInfo extensionDataSetMethod;
DataContractDictionary knownDataContracts;
string serializationExceptionMessage;
bool isISerializable;
bool isKnownTypeAttributeChecked;
bool isMethodChecked;
bool hasExtensionData;
[Fx.Tag.SecurityNote(Miscellaneous = "in serialization/deserialization we base the decision whether to Demand SerializationFormatter permission on this value and hasDataContract.")]
bool isNonAttributedType;
[Fx.Tag.SecurityNote(Miscellaneous = "in serialization/deserialization we base the decision whether to Demand SerializationFormatter permission on this value and isNonAttributedType.")]
bool hasDataContract;
XmlDictionaryString[] childElementNamespaces;
XmlFormatClassReaderDelegate xmlFormatReaderDelegate;
XmlFormatClassWriterDelegate xmlFormatWriterDelegate;
public XmlDictionaryString[] ContractNamespaces;
public XmlDictionaryString[] MemberNames;
public XmlDictionaryString[] MemberNamespaces;
internal ClassDataContractCriticalHelper()
: base()
{
}
internal ClassDataContractCriticalHelper(Type type)
: base(type)
{
XmlQualifiedName stableName = GetStableNameAndSetHasDataContract(type);
if (type == Globals.TypeOfDBNull)
{
this.StableName = stableName;
this.members = new List<DataMember>();
XmlDictionary dictionary = new XmlDictionary(2);
this.Name = dictionary.Add(StableName.Name);
this.Namespace = dictionary.Add(StableName.Namespace);
this.ContractNamespaces = this.MemberNames = this.MemberNamespaces = new XmlDictionaryString[] { };
EnsureMethodsImported();
return;
}
Type baseType = type.BaseType;
this.isISerializable = (Globals.TypeOfISerializable.IsAssignableFrom(type));
SetIsNonAttributedType(type);
if (this.isISerializable)
{
if (HasDataContract)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataContractException(SR.GetString(SR.ISerializableCannotHaveDataContract, DataContract.GetClrTypeFullName(type))));
if (baseType != null && !(baseType.IsSerializable && Globals.TypeOfISerializable.IsAssignableFrom(baseType)))
baseType = null;
}
this.IsValueType = type.IsValueType;
if (baseType != null && baseType != Globals.TypeOfObject && baseType != Globals.TypeOfValueType && baseType != Globals.TypeOfUri)
{
DataContract baseContract = DataContract.GetDataContract(baseType);
if (baseContract is CollectionDataContract)
this.BaseContract = ((CollectionDataContract)baseContract).SharedTypeContract as ClassDataContract;
else
this.BaseContract = baseContract as ClassDataContract;
if (this.BaseContract != null && this.BaseContract.IsNonAttributedType && !this.isNonAttributedType)
{
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError
(new InvalidDataContractException(SR.GetString(SR.AttributedTypesCannotInheritFromNonAttributedSerializableTypes,
DataContract.GetClrTypeFullName(type), DataContract.GetClrTypeFullName(baseType))));
}
}
else
this.BaseContract = null;
hasExtensionData = (Globals.TypeOfIExtensibleDataObject.IsAssignableFrom(type));
if (hasExtensionData && !HasDataContract && !IsNonAttributedType)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataContractException(SR.GetString(SR.OnlyDataContractTypesCanHaveExtensionData, DataContract.GetClrTypeFullName(type))));
if (this.isISerializable)
SetDataContractName(stableName);
else
{
this.StableName = stableName;
ImportDataMembers();
XmlDictionary dictionary = new XmlDictionary(2 + Members.Count);
Name = dictionary.Add(StableName.Name);
Namespace = dictionary.Add(StableName.Namespace);
int baseMemberCount = 0;
int baseContractCount = 0;
if (BaseContract == null)
{
MemberNames = new XmlDictionaryString[Members.Count];
MemberNamespaces = new XmlDictionaryString[Members.Count];
ContractNamespaces = new XmlDictionaryString[1];
}
else
{
if (BaseContract.IsReadOnlyContract)
{
this.serializationExceptionMessage = BaseContract.SerializationExceptionMessage;
}
baseMemberCount = BaseContract.MemberNames.Length;
MemberNames = new XmlDictionaryString[Members.Count + baseMemberCount];
Array.Copy(BaseContract.MemberNames, MemberNames, baseMemberCount);
MemberNamespaces = new XmlDictionaryString[Members.Count + baseMemberCount];
Array.Copy(BaseContract.MemberNamespaces, MemberNamespaces, baseMemberCount);
baseContractCount = BaseContract.ContractNamespaces.Length;
ContractNamespaces = new XmlDictionaryString[1 + baseContractCount];
Array.Copy(BaseContract.ContractNamespaces, ContractNamespaces, baseContractCount);
}
ContractNamespaces[baseContractCount] = Namespace;
for (int i = 0; i < Members.Count; i++)
{
MemberNames[i + baseMemberCount] = dictionary.Add(Members[i].Name);
MemberNamespaces[i + baseMemberCount] = Namespace;
}
}
EnsureMethodsImported();
}
internal ClassDataContractCriticalHelper(Type type, XmlDictionaryString ns, string[] memberNames)
: base(type)
{
this.StableName = new XmlQualifiedName(GetStableNameAndSetHasDataContract(type).Name, ns.Value);
ImportDataMembers();
XmlDictionary dictionary = new XmlDictionary(1 + Members.Count);
Name = dictionary.Add(StableName.Name);
Namespace = ns;
ContractNamespaces = new XmlDictionaryString[] { Namespace };
MemberNames = new XmlDictionaryString[Members.Count];
MemberNamespaces = new XmlDictionaryString[Members.Count];
for (int i = 0; i < Members.Count; i++)
{
Members[i].Name = memberNames[i];
MemberNames[i] = dictionary.Add(Members[i].Name);
MemberNamespaces[i] = Namespace;
}
EnsureMethodsImported();
}
void EnsureIsReferenceImported(Type type)
{
DataContractAttribute dataContractAttribute;
bool isReference = false;
bool hasDataContractAttribute = TryGetDCAttribute(type, out dataContractAttribute);
if (BaseContract != null)
{
if (hasDataContractAttribute && dataContractAttribute.IsReferenceSetExplicitly)
{
bool baseIsReference = this.BaseContract.IsReference;
if ((baseIsReference && !dataContractAttribute.IsReference) ||
(!baseIsReference && dataContractAttribute.IsReference))
{
DataContract.ThrowInvalidDataContractException(
SR.GetString(SR.InconsistentIsReference,
DataContract.GetClrTypeFullName(type),
dataContractAttribute.IsReference,
DataContract.GetClrTypeFullName(this.BaseContract.UnderlyingType),
this.BaseContract.IsReference),
type);
}
else
{
isReference = dataContractAttribute.IsReference;
}
}
else
{
isReference = this.BaseContract.IsReference;
}
}
else if (hasDataContractAttribute)
{
if (dataContractAttribute.IsReference)
isReference = dataContractAttribute.IsReference;
}
if (isReference && type.IsValueType)
{
DataContract.ThrowInvalidDataContractException(
SR.GetString(SR.ValueTypeCannotHaveIsReference,
DataContract.GetClrTypeFullName(type),
true,
false),
type);
return;
}
this.IsReference = isReference;
}
void ImportDataMembers()
{
Type type = this.UnderlyingType;
EnsureIsReferenceImported(type);
List<DataMember> tempMembers = new List<DataMember>();
Dictionary<string, DataMember> memberNamesTable = new Dictionary<string, DataMember>();
MemberInfo[] memberInfos;
if (this.isNonAttributedType)
{
memberInfos = type.GetMembers(BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Public);
}
else
{
memberInfos = type.GetMembers(BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
}
for (int i = 0; i < memberInfos.Length; i++)
{
MemberInfo member = memberInfos[i];
if (HasDataContract)
{
object[] memberAttributes = member.GetCustomAttributes(typeof(DataMemberAttribute), false);
if (memberAttributes != null && memberAttributes.Length > 0)
{
if (memberAttributes.Length > 1)
ThrowInvalidDataContractException(SR.GetString(SR.TooManyDataMembers, DataContract.GetClrTypeFullName(member.DeclaringType), member.Name));
DataMember memberContract = new DataMember(member);
if (member.MemberType == MemberTypes.Property)
{
PropertyInfo property = (PropertyInfo)member;
MethodInfo getMethod = property.GetGetMethod(true);
if (getMethod != null && IsMethodOverriding(getMethod))
continue;
MethodInfo setMethod = property.GetSetMethod(true);
if (setMethod != null && IsMethodOverriding(setMethod))
continue;
if (getMethod == null)
ThrowInvalidDataContractException(SR.GetString(SR.NoGetMethodForProperty, property.DeclaringType, property.Name));
if (setMethod == null)
{
if (!SetIfGetOnlyCollection(memberContract, skipIfReadOnlyContract: false))
{
this.serializationExceptionMessage = SR.GetString(SR.NoSetMethodForProperty, property.DeclaringType, property.Name);
}
}
if (getMethod.GetParameters().Length > 0)
ThrowInvalidDataContractException(SR.GetString(SR.IndexedPropertyCannotBeSerialized, property.DeclaringType, property.Name));
}
else if (member.MemberType != MemberTypes.Field)
ThrowInvalidDataContractException(SR.GetString(SR.InvalidMember, DataContract.GetClrTypeFullName(type), member.Name));
DataMemberAttribute memberAttribute = (DataMemberAttribute)memberAttributes[0];
if (memberAttribute.IsNameSetExplicitly)
{
if (memberAttribute.Name == null || memberAttribute.Name.Length == 0)
ThrowInvalidDataContractException(SR.GetString(SR.InvalidDataMemberName, member.Name, DataContract.GetClrTypeFullName(type)));
memberContract.Name = memberAttribute.Name;
}
else
memberContract.Name = member.Name;
memberContract.Name = DataContract.EncodeLocalName(memberContract.Name);
memberContract.IsNullable = DataContract.IsTypeNullable(memberContract.MemberType);
memberContract.IsRequired = memberAttribute.IsRequired;
if (memberAttribute.IsRequired && this.IsReference)
{
ThrowInvalidDataContractException(
SR.GetString(SR.IsRequiredDataMemberOnIsReferenceDataContractType,
DataContract.GetClrTypeFullName(member.DeclaringType),
member.Name, true), type);
}
memberContract.EmitDefaultValue = memberAttribute.EmitDefaultValue;
memberContract.Order = memberAttribute.Order;
CheckAndAddMember(tempMembers, memberContract, memberNamesTable);
}
}
else if (this.isNonAttributedType)
{
FieldInfo field = member as FieldInfo;
PropertyInfo property = member as PropertyInfo;
if ((field == null && property == null) || (field != null && field.IsInitOnly))
continue;
object[] memberAttributes = member.GetCustomAttributes(typeof(IgnoreDataMemberAttribute), false);
if (memberAttributes != null && memberAttributes.Length > 0)
{
if (memberAttributes.Length > 1)
ThrowInvalidDataContractException(SR.GetString(SR.TooManyIgnoreDataMemberAttributes, DataContract.GetClrTypeFullName(member.DeclaringType), member.Name));
else
continue;
}
DataMember memberContract = new DataMember(member);
if (property != null)
{
MethodInfo getMethod = property.GetGetMethod();
if (getMethod == null || IsMethodOverriding(getMethod) || getMethod.GetParameters().Length > 0)
continue;
MethodInfo setMethod = property.GetSetMethod(true);
if (setMethod == null)
{
// if the collection doesn't have the 'Add' method, we will skip it, for compatibility with 4.0
if (!SetIfGetOnlyCollection(memberContract, skipIfReadOnlyContract: true))
continue;
}
else
{
if (!setMethod.IsPublic || IsMethodOverriding(setMethod))
continue;
}
//skip ExtensionData member of type ExtensionDataObject if IExtensibleDataObject is implemented in non-attributed type
if (this.hasExtensionData && memberContract.MemberType == Globals.TypeOfExtensionDataObject
&& member.Name == Globals.ExtensionDataObjectPropertyName)
continue;
}
memberContract.Name = DataContract.EncodeLocalName(member.Name);
memberContract.IsNullable = DataContract.IsTypeNullable(memberContract.MemberType);
CheckAndAddMember(tempMembers, memberContract, memberNamesTable);
}
else
{
FieldInfo field = member as FieldInfo;
if (field != null && !field.IsNotSerialized)
{
DataMember memberContract = new DataMember(member);
memberContract.Name = DataContract.EncodeLocalName(member.Name);
object[] optionalFields = field.GetCustomAttributes(Globals.TypeOfOptionalFieldAttribute, false);
if (optionalFields == null || optionalFields.Length == 0)
{
if (this.IsReference)
{
ThrowInvalidDataContractException(
SR.GetString(SR.NonOptionalFieldMemberOnIsReferenceSerializableType,
DataContract.GetClrTypeFullName(member.DeclaringType),
member.Name, true), type);
}
memberContract.IsRequired = true;
}
memberContract.IsNullable = DataContract.IsTypeNullable(memberContract.MemberType);
CheckAndAddMember(tempMembers, memberContract, memberNamesTable);
}
}
}
if (tempMembers.Count > 1)
tempMembers.Sort(DataMemberComparer.Singleton);
SetIfMembersHaveConflict(tempMembers);
Thread.MemoryBarrier();
members = tempMembers;
}
bool SetIfGetOnlyCollection(DataMember memberContract, bool skipIfReadOnlyContract)
{
//OK to call IsCollection here since the use of surrogated collection types is not supported in get-only scenarios
if (CollectionDataContract.IsCollection(memberContract.MemberType, false /*isConstructorRequired*/, skipIfReadOnlyContract) && !memberContract.MemberType.IsValueType)
{
memberContract.IsGetOnlyCollection = true;
return true;
}
return false;
}
void SetIfMembersHaveConflict(List<DataMember> members)
{
if (BaseContract == null)
return;
int baseTypeIndex = 0;
List<Member> membersInHierarchy = new List<Member>();
foreach (DataMember member in members)
{
membersInHierarchy.Add(new Member(member, this.StableName.Namespace, baseTypeIndex));
}
ClassDataContract currContract = BaseContract;
while (currContract != null)
{
baseTypeIndex++;
foreach (DataMember member in currContract.Members)
{
membersInHierarchy.Add(new Member(member, currContract.StableName.Namespace, baseTypeIndex));
}
currContract = currContract.BaseContract;
}
IComparer<Member> comparer = DataMemberConflictComparer.Singleton;
membersInHierarchy.Sort(comparer);
for (int i = 0; i < membersInHierarchy.Count - 1; i++)
{
int startIndex = i;
int endIndex = i;
bool hasConflictingType = false;
while (endIndex < membersInHierarchy.Count - 1
&& String.CompareOrdinal(membersInHierarchy[endIndex].member.Name, membersInHierarchy[endIndex + 1].member.Name) == 0
&& String.CompareOrdinal(membersInHierarchy[endIndex].ns, membersInHierarchy[endIndex + 1].ns) == 0)
{
membersInHierarchy[endIndex].member.ConflictingMember = membersInHierarchy[endIndex + 1].member;
if (!hasConflictingType)
{
if (membersInHierarchy[endIndex + 1].member.HasConflictingNameAndType)
{
hasConflictingType = true;
}
else
{
hasConflictingType = (membersInHierarchy[endIndex].member.MemberType != membersInHierarchy[endIndex + 1].member.MemberType);
}
}
endIndex++;
}
if (hasConflictingType)
{
for (int j = startIndex; j <= endIndex; j++)
{
membersInHierarchy[j].member.HasConflictingNameAndType = true;
}
}
i = endIndex + 1;
}
}
[Fx.Tag.SecurityNote(Critical = "Sets the critical hasDataContract field.",
Safe = "Uses a trusted critical API (DataContract.GetStableName) to calculate the value, does not accept the value from the caller.")]
[SecuritySafeCritical]
XmlQualifiedName GetStableNameAndSetHasDataContract(Type type)
{
return DataContract.GetStableName(type, out this.hasDataContract);
}
[Fx.Tag.SecurityNote(Miscellaneous = "RequiresReview - callers may need to depend on isNonAttributedType for a security decision."
+ "isNonAttributedType must be calculated correctly."
+ "SetIsNonAttributedType should not be called before GetStableNameAndSetHasDataContract since it is dependent on the correct calculation of hasDataContract.",
Safe = "Does not let caller influence isNonAttributedType calculation; no harm in leaking value.")]
void SetIsNonAttributedType(Type type)
{
this.isNonAttributedType = !type.IsSerializable && !this.hasDataContract && IsNonAttributedTypeValidForSerialization(type);
}
static bool IsMethodOverriding(MethodInfo method)
{
return method.IsVirtual && ((method.Attributes & MethodAttributes.NewSlot) == 0);
}
internal void EnsureMethodsImported()
{
if (!isMethodChecked && UnderlyingType != null)
{
lock (this)
{
if (!isMethodChecked)
{
Type type = this.UnderlyingType;
MethodInfo[] methods = type.GetMethods(BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
for (int i = 0; i < methods.Length; i++)
{
MethodInfo method = methods[i];
Type prevAttributeType = null;
ParameterInfo[] parameters = method.GetParameters();
if (HasExtensionData && IsValidExtensionDataSetMethod(method, parameters))
{
if (method.Name == Globals.ExtensionDataSetExplicitMethod || !method.IsPublic)
extensionDataSetMethod = XmlFormatGeneratorStatics.ExtensionDataSetExplicitMethodInfo;
else
extensionDataSetMethod = method;
}
if (IsValidCallback(method, parameters, Globals.TypeOfOnSerializingAttribute, onSerializing, ref prevAttributeType))
onSerializing = method;
if (IsValidCallback(method, parameters, Globals.TypeOfOnSerializedAttribute, onSerialized, ref prevAttributeType))
onSerialized = method;
if (IsValidCallback(method, parameters, Globals.TypeOfOnDeserializingAttribute, onDeserializing, ref prevAttributeType))
onDeserializing = method;
if (IsValidCallback(method, parameters, Globals.TypeOfOnDeserializedAttribute, onDeserialized, ref prevAttributeType))
onDeserialized = method;
}
Thread.MemoryBarrier();
isMethodChecked = true;
}
}
}
}
bool IsValidExtensionDataSetMethod(MethodInfo method, ParameterInfo[] parameters)
{
if (method.Name == Globals.ExtensionDataSetExplicitMethod || method.Name == Globals.ExtensionDataSetMethod)
{
if (extensionDataSetMethod != null)
ThrowInvalidDataContractException(SR.GetString(SR.DuplicateExtensionDataSetMethod, method, extensionDataSetMethod, DataContract.GetClrTypeFullName(method.DeclaringType)));
if (method.ReturnType != Globals.TypeOfVoid)
DataContract.ThrowInvalidDataContractException(SR.GetString(SR.ExtensionDataSetMustReturnVoid, DataContract.GetClrTypeFullName(method.DeclaringType), method), method.DeclaringType);
if (parameters == null || parameters.Length != 1 || parameters[0].ParameterType != Globals.TypeOfExtensionDataObject)
DataContract.ThrowInvalidDataContractException(SR.GetString(SR.ExtensionDataSetParameterInvalid, DataContract.GetClrTypeFullName(method.DeclaringType), method, Globals.TypeOfExtensionDataObject), method.DeclaringType);
return true;
}
return false;
}
static bool IsValidCallback(MethodInfo method, ParameterInfo[] parameters, Type attributeType, MethodInfo currentCallback, ref Type prevAttributeType)
{
if (method.IsDefined(attributeType, false))
{
if (currentCallback != null)
DataContract.ThrowInvalidDataContractException(SR.GetString(SR.DuplicateCallback, method, currentCallback, DataContract.GetClrTypeFullName(method.DeclaringType), attributeType), method.DeclaringType);
else if (prevAttributeType != null)
DataContract.ThrowInvalidDataContractException(SR.GetString(SR.DuplicateAttribute, prevAttributeType, attributeType, DataContract.GetClrTypeFullName(method.DeclaringType), method), method.DeclaringType);
else if (method.IsVirtual)
DataContract.ThrowInvalidDataContractException(SR.GetString(SR.CallbacksCannotBeVirtualMethods, method, DataContract.GetClrTypeFullName(method.DeclaringType), attributeType), method.DeclaringType);
else
{
if (method.ReturnType != Globals.TypeOfVoid)
DataContract.ThrowInvalidDataContractException(SR.GetString(SR.CallbackMustReturnVoid, DataContract.GetClrTypeFullName(method.DeclaringType), method), method.DeclaringType);
if (parameters == null || parameters.Length != 1 || parameters[0].ParameterType != Globals.TypeOfStreamingContext)
DataContract.ThrowInvalidDataContractException(SR.GetString(SR.CallbackParameterInvalid, DataContract.GetClrTypeFullName(method.DeclaringType), method, Globals.TypeOfStreamingContext), method.DeclaringType);
prevAttributeType = attributeType;
}
return true;
}
return false;
}
internal ClassDataContract BaseContract
{
get { return baseContract; }
set
{
baseContract = value;
if (baseContract != null && IsValueType)
ThrowInvalidDataContractException(SR.GetString(SR.ValueTypeCannotHaveBaseType, StableName.Name, StableName.Namespace, baseContract.StableName.Name, baseContract.StableName.Namespace));
}
}
internal List<DataMember> Members
{
get { return members; }
set { members = value; }
}
internal MethodInfo OnSerializing
{
get
{
EnsureMethodsImported();
return onSerializing;
}
}
internal MethodInfo OnSerialized
{
get
{
EnsureMethodsImported();
return onSerialized;
}
}
internal MethodInfo OnDeserializing
{
get
{
EnsureMethodsImported();
return onDeserializing;
}
}
internal MethodInfo OnDeserialized
{
get
{
EnsureMethodsImported();
return onDeserialized;
}
}
internal MethodInfo ExtensionDataSetMethod
{
get
{
EnsureMethodsImported();
return extensionDataSetMethod;
}
}
internal override DataContractDictionary KnownDataContracts
{
get
{
if (!isKnownTypeAttributeChecked && UnderlyingType != null)
{
lock (this)
{
if (!isKnownTypeAttributeChecked)
{
knownDataContracts = DataContract.ImportKnownTypeAttributes(this.UnderlyingType);
Thread.MemoryBarrier();
isKnownTypeAttributeChecked = true;
}
}
}
return knownDataContracts;
}
set { knownDataContracts = value; }
}
internal string SerializationExceptionMessage
{
get { return serializationExceptionMessage; }
}
internal string DeserializationExceptionMessage
{
get
{
if (serializationExceptionMessage == null)
{
return null;
}
else
{
return SR.GetString(SR.ReadOnlyClassDeserialization, this.serializationExceptionMessage);
}
}
}
internal override bool IsISerializable
{
get { return isISerializable; }
set { isISerializable = value; }
}
internal bool HasDataContract
{
get { return hasDataContract; }
}
internal bool HasExtensionData
{
get { return hasExtensionData; }
}
internal bool IsNonAttributedType
{
get { return isNonAttributedType; }
}
internal ConstructorInfo GetISerializableConstructor()
{
if (!IsISerializable)
return null;
ConstructorInfo ctor = UnderlyingType.GetConstructor(Globals.ScanAllMembers, null, SerInfoCtorArgs, null);
if (ctor == null)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(SR.GetString(SR.SerializationInfo_ConstructorNotFound, DataContract.GetClrTypeFullName(UnderlyingType))));
return ctor;
}
internal ConstructorInfo GetNonAttributedTypeConstructor()
{
if (!this.IsNonAttributedType)
return null;
Type type = UnderlyingType;
if (type.IsValueType)
return null;
ConstructorInfo ctor = type.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public, null, Globals.EmptyTypeArray, null);
if (ctor == null)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataContractException(SR.GetString(SR.NonAttributedSerializableTypesMustHaveDefaultConstructor, DataContract.GetClrTypeFullName(type))));
return ctor;
}
internal XmlFormatClassWriterDelegate XmlFormatWriterDelegate
{
get { return xmlFormatWriterDelegate; }
set { xmlFormatWriterDelegate = value; }
}
internal XmlFormatClassReaderDelegate XmlFormatReaderDelegate
{
get { return xmlFormatReaderDelegate; }
set { xmlFormatReaderDelegate = value; }
}
public XmlDictionaryString[] ChildElementNamespaces
{
get { return childElementNamespaces; }
set { childElementNamespaces = value; }
}
static Type[] serInfoCtorArgs;
static Type[] SerInfoCtorArgs
{
get
{
if (serInfoCtorArgs == null)
serInfoCtorArgs = new Type[] { typeof(SerializationInfo), typeof(StreamingContext) };
return serInfoCtorArgs;
}
}
internal struct Member
{
internal Member(DataMember member, string ns, int baseTypeIndex)
{
this.member = member;
this.ns = ns;
this.baseTypeIndex = baseTypeIndex;
}
internal DataMember member;
internal string ns;
internal int baseTypeIndex;
}
internal class DataMemberConflictComparer : IComparer<Member>
{
public int Compare(Member x, Member y)
{
int nsCompare = String.CompareOrdinal(x.ns, y.ns);
if (nsCompare != 0)
return nsCompare;
int nameCompare = String.CompareOrdinal(x.member.Name, y.member.Name);
if (nameCompare != 0)
return nameCompare;
return x.baseTypeIndex - y.baseTypeIndex;
}
internal static DataMemberConflictComparer Singleton = new DataMemberConflictComparer();
}
}
[Fx.Tag.SecurityNote(Critical = "Sets critical properties on ClassDataContract .",
Safe = "Called during schema import/code generation.")]
[SecuritySafeCritical]
internal override DataContract BindGenericParameters(DataContract[] paramContracts, Dictionary<DataContract, DataContract> boundContracts)
{
Type type = UnderlyingType;
if (!type.IsGenericType || !type.ContainsGenericParameters)
return this;
lock (this)
{
DataContract boundContract;
if (boundContracts.TryGetValue(this, out boundContract))
return boundContract;
ClassDataContract boundClassContract = new ClassDataContract();
boundContracts.Add(this, boundClassContract);
XmlQualifiedName stableName;
object[] genericParams;
if (type.IsGenericTypeDefinition)
{
stableName = this.StableName;
genericParams = paramContracts;
}
else
{
//partial Generic: Construct stable name from its open generic type definition
stableName = DataContract.GetStableName(type.GetGenericTypeDefinition());
Type[] paramTypes = type.GetGenericArguments();
genericParams = new object[paramTypes.Length];
for (int i = 0; i < paramTypes.Length; i++)
{
Type paramType = paramTypes[i];
if (paramType.IsGenericParameter)
genericParams[i] = paramContracts[paramType.GenericParameterPosition];
else
genericParams[i] = paramType;
}
}
boundClassContract.StableName = CreateQualifiedName(DataContract.ExpandGenericParameters(XmlConvert.DecodeName(stableName.Name), new GenericNameProvider(DataContract.GetClrTypeFullName(this.UnderlyingType), genericParams)), stableName.Namespace);
if (BaseContract != null)
boundClassContract.BaseContract = (ClassDataContract)BaseContract.BindGenericParameters(paramContracts, boundContracts);
boundClassContract.IsISerializable = this.IsISerializable;
boundClassContract.IsValueType = this.IsValueType;
boundClassContract.IsReference = this.IsReference;
if (Members != null)
{
boundClassContract.Members = new List<DataMember>(Members.Count);
foreach (DataMember member in Members)
boundClassContract.Members.Add(member.BindGenericParameters(paramContracts, boundContracts));
}
return boundClassContract;
}
}
internal override bool Equals(object other, Dictionary<DataContractPairKey, object> checkedContracts)
{
if (IsEqualOrChecked(other, checkedContracts))
return true;
if (base.Equals(other, checkedContracts))
{
ClassDataContract dataContract = other as ClassDataContract;
if (dataContract != null)
{
if (IsISerializable)
{
if (!dataContract.IsISerializable)
return false;
}
else
{
if (dataContract.IsISerializable)
return false;
if (Members == null)
{
if (dataContract.Members != null)
{
// check that all the datamembers in dataContract.Members are optional
if (!IsEveryDataMemberOptional(dataContract.Members))
return false;
}
}
else if (dataContract.Members == null)
{
// check that all the datamembers in Members are optional
if (!IsEveryDataMemberOptional(Members))
return false;
}
else
{
Dictionary<string, DataMember> membersDictionary = new Dictionary<string, DataMember>(Members.Count);
List<DataMember> dataContractMembersList = new List<DataMember>();
for (int i = 0; i < Members.Count; i++)
{
membersDictionary.Add(Members[i].Name, Members[i]);
}
for (int i = 0; i < dataContract.Members.Count; i++)
{
// check that all datamembers common to both datacontracts match
DataMember dataMember;
if (membersDictionary.TryGetValue(dataContract.Members[i].Name, out dataMember))
{
if (dataMember.Equals(dataContract.Members[i], checkedContracts))
{
membersDictionary.Remove(dataMember.Name);
}
else
{
return false;
}
}
// otherwise save the non-matching datamembers for later verification
else
{
dataContractMembersList.Add(dataContract.Members[i]);
}
}
// check that datamembers left over from either datacontract are optional
if (!IsEveryDataMemberOptional(membersDictionary.Values))
return false;
if (!IsEveryDataMemberOptional(dataContractMembersList))
return false;
}
}
if (BaseContract == null)
return (dataContract.BaseContract == null);
else if (dataContract.BaseContract == null)
return false;
else
return BaseContract.Equals(dataContract.BaseContract, checkedContracts);
}
}
return false;
}
bool IsEveryDataMemberOptional(IEnumerable<DataMember> dataMembers)
{
foreach (DataMember dataMember in dataMembers)
{
if (dataMember.IsRequired)
return false;
}
return true;
}
public override int GetHashCode()
{
return base.GetHashCode();
}
internal class DataMemberComparer : IComparer<DataMember>
{
public int Compare(DataMember x, DataMember y)
{
int orderCompare = x.Order - y.Order;
if (orderCompare != 0)
return orderCompare;
return String.CompareOrdinal(x.Name, y.Name);
}
internal static DataMemberComparer Singleton = new DataMemberComparer();
}
}
}
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