|
private BeginMethod ( |
||
| dynamicMethod | ||
| delegateType | ||
| methodName | string | |
| argTypes | ||
| allowPrivateMemberAccess | bool | |
| Результат | void | |
private CodeGenerator GenerateCollectionReaderHelper(CollectionDataContract collectionContract, bool isGetOnlyCollection)
{
_ilg = new CodeGenerator();
bool memberAccessFlag = collectionContract.RequiresMemberAccessForRead(null);
try
{
if (isGetOnlyCollection)
{
_ilg.BeginMethod("Read" + collectionContract.StableName.Name + "FromXml" + "IsGetOnly", Globals.TypeOfXmlFormatGetOnlyCollectionReaderDelegate, memberAccessFlag);
}
else
{
_ilg.BeginMethod("Read" + collectionContract.StableName.Name + "FromXml" + string.Empty, Globals.TypeOfXmlFormatCollectionReaderDelegate, memberAccessFlag);
}
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
collectionContract.RequiresMemberAccessForRead(securityException);
}
else
{
throw;
}
}
InitArgs();
_collectionContractArg = _ilg.GetArg(4);
return(_ilg);
}
internal System.Runtime.Serialization.CreateXmlSerializableDelegate GenerateCreateXmlSerializableDelegate()
{
Type underlyingType = base.UnderlyingType;
CodeGenerator generator = new CodeGenerator();
bool allowPrivateMemberAccess = this.RequiresMemberAccessForCreate(null);
try
{
generator.BeginMethod("Create" + DataContract.GetClrTypeFullName(underlyingType), typeof(System.Runtime.Serialization.CreateXmlSerializableDelegate), allowPrivateMemberAccess);
}
catch (SecurityException exception)
{
if (!allowPrivateMemberAccess || !exception.PermissionType.Equals(typeof(ReflectionPermission)))
{
throw;
}
this.RequiresMemberAccessForCreate(exception);
}
if (underlyingType.IsValueType)
{
LocalBuilder localBuilder = generator.DeclareLocal(underlyingType, underlyingType.Name + "Value");
generator.Ldloca(localBuilder);
generator.InitObj(underlyingType);
generator.Ldloc(localBuilder);
}
else
{
generator.New(this.GetConstructor());
}
generator.ConvertValue(base.UnderlyingType, Globals.TypeOfIXmlSerializable);
generator.Ret();
return((System.Runtime.Serialization.CreateXmlSerializableDelegate)generator.EndMethod());
}
internal XmlFormatClassWriterDelegate GenerateClassWriter(ClassDataContract classContract)
{
if (DataContractSerializer.Option == SerializationOption.ReflectionOnly)
{
return CreateReflectionXmlFormatClassWriterDelegate();
}
else
{
_ilg = new CodeGenerator();
bool memberAccessFlag = classContract.RequiresMemberAccessForWrite(null);
try
{
_ilg.BeginMethod("Write" + classContract.StableName.Name + "ToXml", Globals.TypeOfXmlFormatClassWriterDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
classContract.RequiresMemberAccessForWrite(securityException);
}
else
{
throw;
}
}
InitArgs(classContract.UnderlyingType);
WriteClass(classContract);
return (XmlFormatClassWriterDelegate)_ilg.EndMethod();
}
}
internal XmlFormatCollectionWriterDelegate GenerateCollectionWriter(CollectionDataContract collectionContract)
{
ilg = new CodeGenerator();
bool memberAccessFlag = collectionContract.RequiresMemberAccessForWrite(null);
try
{
ilg.BeginMethod("Write" + collectionContract.StableName.Name + "ToXml", Globals.TypeOfXmlFormatCollectionWriterDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag && securityException.PermissionType.Equals(typeof(ReflectionPermission)))
{
collectionContract.RequiresMemberAccessForWrite(securityException);
}
else
{
throw;
}
}
InitArgs(collectionContract.UnderlyingType);
DemandMemberAccessPermission(memberAccessFlag);
if (collectionContract.IsReadOnlyContract)
{
ThrowIfCannotSerializeReadOnlyTypes(collectionContract);
}
WriteCollection(collectionContract);
return((XmlFormatCollectionWriterDelegate)ilg.EndMethod());
}
internal XmlFormatCollectionWriterDelegate GenerateCollectionWriter(CollectionDataContract collectionContract)
{
if (DataContractSerializer.Option == SerializationOption.ReflectionOnly)
{
return(CreateReflectionXmlFormatCollectionWriterDelegate());
}
else
{
#if USE_REFEMIT
throw new InvalidOperationException("Cannot generate class writer");
#else
_ilg = new CodeGenerator();
bool memberAccessFlag = collectionContract.RequiresMemberAccessForWrite(null);
try
{
_ilg.BeginMethod("Write" + collectionContract.StableName.Name + "ToXml", Globals.TypeOfXmlFormatCollectionWriterDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
collectionContract.RequiresMemberAccessForWrite(securityException);
}
else
{
throw;
}
}
InitArgs(collectionContract.UnderlyingType);
WriteCollection(collectionContract);
return((XmlFormatCollectionWriterDelegate)_ilg.EndMethod());
#endif
}
}
internal XmlFormatCollectionWriterDelegate GenerateCollectionWriter(CollectionDataContract collectionContract)
{
if (DataContractSerializer.Option == SerializationOption.ReflectionOnly)
{
return(CreateReflectionXmlFormatCollectionWriterDelegate());
}
else
{
_ilg = new CodeGenerator();
bool memberAccessFlag = collectionContract.RequiresMemberAccessForWrite(null);
try
{
_ilg.BeginMethod("Write" + collectionContract.XmlName.Name + "ToXml", Globals.TypeOfXmlFormatCollectionWriterDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
collectionContract.RequiresMemberAccessForWrite(securityException);
}
else
{
throw;
}
}
InitArgs(collectionContract.UnderlyingType);
if (collectionContract.IsReadOnlyContract)
{
ThrowIfCannotSerializeReadOnlyTypes(collectionContract);
}
WriteCollection(collectionContract);
return((XmlFormatCollectionWriterDelegate)_ilg.EndMethod());
}
}
public XmlFormatClassReaderDelegate GenerateClassReader(ClassDataContract classContract)
{
_ilg = new CodeGenerator();
bool memberAccessFlag = classContract.RequiresMemberAccessForRead(null);
try
{
_ilg.BeginMethod("Read" + classContract.StableName.Name + "FromXml", Globals.TypeOfXmlFormatClassReaderDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
classContract.RequiresMemberAccessForRead(securityException);
}
else
{
throw;
}
}
InitArgs();
CreateObject(classContract);
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.AddNewObjectMethod, _objectLocal);
InvokeOnDeserializing(classContract);
LocalBuilder objectId = null;
ReadClass(classContract);
InvokeOnDeserialized(classContract);
if (objectId == null)
{
_ilg.Load(_objectLocal);
// Do a conversion back from DateTimeOffsetAdapter to DateTimeOffset after deserialization.
// DateTimeOffsetAdapter is used here for deserialization purposes to bypass the ISerializable implementation
// on DateTimeOffset; which does not work in partial trust.
if (classContract.UnderlyingType == Globals.TypeOfDateTimeOffsetAdapter)
{
_ilg.ConvertValue(_objectLocal.LocalType, Globals.TypeOfDateTimeOffsetAdapter);
_ilg.Call(XmlFormatGeneratorStatics.GetDateTimeOffsetMethod);
_ilg.ConvertValue(Globals.TypeOfDateTimeOffset, _ilg.CurrentMethod.ReturnType);
}
//Copy the KeyValuePairAdapter<K,T> to a KeyValuePair<K,T>.
else if (classContract.IsKeyValuePairAdapter)
{
_ilg.Call(classContract.GetKeyValuePairMethodInfo);
_ilg.ConvertValue(Globals.TypeOfKeyValuePair.MakeGenericType(classContract.KeyValuePairGenericArguments), _ilg.CurrentMethod.ReturnType);
}
else
{
_ilg.ConvertValue(_objectLocal.LocalType, _ilg.CurrentMethod.ReturnType);
}
}
return((XmlFormatClassReaderDelegate)_ilg.EndMethod());
}
internal XmlFormatCollectionWriterDelegate GenerateCollectionWriter(CollectionDataContract collectionContract)
{
_ilg = new CodeGenerator();
bool memberAccessFlag = collectionContract.RequiresMemberAccessForWrite(null);
try
{
_ilg.BeginMethod("Write" + collectionContract.StableName.Name + "ToXml", Globals.TypeOfXmlFormatCollectionWriterDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
collectionContract.RequiresMemberAccessForWrite(securityException);
}
else
{
throw;
}
}
InitArgs(collectionContract.UnderlyingType);
WriteCollection(collectionContract);
return((XmlFormatCollectionWriterDelegate)_ilg.EndMethod());
}
internal CreateXmlSerializableDelegate GenerateCreateXmlSerializableDelegate()
{
Type type = this.UnderlyingType;
CodeGenerator ilg = new CodeGenerator();
bool memberAccessFlag = RequiresMemberAccessForCreate(null);
try
{
ilg.BeginMethod("Create" + DataContract.GetClrTypeFullName(type), typeof(CreateXmlSerializableDelegate), memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag && securityException.PermissionType.Equals(typeof(ReflectionPermission)))
{
RequiresMemberAccessForCreate(securityException);
}
else
{
throw;
}
}
if (type.IsValueType)
{
System.Reflection.Emit.LocalBuilder local = ilg.DeclareLocal(type, type.Name + "Value");
ilg.Ldloca(local);
ilg.InitObj(type);
ilg.Ldloc(local);
}
else
{
ilg.New(GetConstructor());
}
ilg.ConvertValue(this.UnderlyingType, Globals.TypeOfIXmlSerializable);
ilg.Ret();
return((CreateXmlSerializableDelegate)ilg.EndMethod());
}
internal CreateXmlSerializableDelegate GenerateCreateXmlSerializableDelegate()
{
Type type = this.UnderlyingType;
CodeGenerator ilg = new CodeGenerator();
bool memberAccessFlag = RequiresMemberAccessForCreate(null) && !(type.FullName == "System.Xml.Linq.XElement");
try
{
ilg.BeginMethod("Create" + DataContract.GetClrTypeFullName(type), typeof(CreateXmlSerializableDelegate), memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
RequiresMemberAccessForCreate(securityException);
}
else
{
throw;
}
}
if (type.IsValueType)
{
System.Reflection.Emit.LocalBuilder local = ilg.DeclareLocal(type, type.Name + "Value");
ilg.Ldloca(local);
ilg.InitObj(type);
ilg.Ldloc(local);
}
else
{
// Special case XElement
// codegen the same as 'internal XElement : this("default") { }'
ConstructorInfo ctor = GetConstructor();
if (!ctor.IsPublic && type.FullName == "System.Xml.Linq.XElement")
{
Type xName = type.Assembly.GetType("System.Xml.Linq.XName");
if (xName != null)
{
MethodInfo XName_op_Implicit = xName.GetMethod(
"op_Implicit",
BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Public,
new Type[] { typeof(string) }
);
ConstructorInfo XElement_ctor = type.GetConstructor(
BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
new Type[] { xName }
);
if (XName_op_Implicit != null && XElement_ctor != null)
{
ilg.Ldstr("default");
ilg.Call(XName_op_Implicit);
ctor = XElement_ctor;
}
}
}
ilg.New(ctor);
}
ilg.ConvertValue(this.UnderlyingType, Globals.TypeOfIXmlSerializable);
ilg.Ret();
return((CreateXmlSerializableDelegate)ilg.EndMethod());
}
public XmlFormatClassReaderDelegate GenerateClassReader(ClassDataContract classContract)
{
if (DataContractSerializer.Option == SerializationOption.ReflectionOnly)
{
return(new ReflectionXmlClassReader(classContract).ReflectionReadClass);
}
#if uapaot
else if (DataContractSerializer.Option == SerializationOption.ReflectionAsBackup)
{
return(new ReflectionXmlClassReader(classContract).ReflectionReadClass);
}
#endif
else
{
#if uapaot
throw new InvalidOperationException("Cannot generate class reader");
#else
_ilg = new CodeGenerator();
bool memberAccessFlag = classContract.RequiresMemberAccessForRead(null);
try
{
_ilg.BeginMethod("Read" + classContract.StableName.Name + "FromXml", Globals.TypeOfXmlFormatClassReaderDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag)
{
classContract.RequiresMemberAccessForRead(securityException);
}
else
{
throw;
}
}
InitArgs();
CreateObject(classContract);
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.AddNewObjectMethod, _objectLocal);
InvokeOnDeserializing(classContract);
LocalBuilder objectId = null;
if (HasFactoryMethod(classContract))
{
objectId = _ilg.DeclareLocal(Globals.TypeOfString, "objectIdRead");
_ilg.Call(_contextArg, XmlFormatGeneratorStatics.GetObjectIdMethod);
_ilg.Stloc(objectId);
}
if (classContract.IsISerializable)
{
ReadISerializable(classContract);
}
else
{
ReadClass(classContract);
}
bool isFactoryType = InvokeFactoryMethod(classContract, objectId);
if (Globals.TypeOfIDeserializationCallback.IsAssignableFrom(classContract.UnderlyingType))
{
_ilg.Call(_objectLocal, XmlFormatGeneratorStatics.OnDeserializationMethod, null);
}
InvokeOnDeserialized(classContract);
if (objectId == null)
{
_ilg.Load(_objectLocal);
// Do a conversion back from DateTimeOffsetAdapter to DateTimeOffset after deserialization.
// DateTimeOffsetAdapter is used here for deserialization purposes to bypass the ISerializable implementation
// on DateTimeOffset; which does not work in partial trust.
if (classContract.UnderlyingType == Globals.TypeOfDateTimeOffsetAdapter)
{
_ilg.ConvertValue(_objectLocal.LocalType, Globals.TypeOfDateTimeOffsetAdapter);
_ilg.Call(XmlFormatGeneratorStatics.GetDateTimeOffsetMethod);
_ilg.ConvertValue(Globals.TypeOfDateTimeOffset, _ilg.CurrentMethod.ReturnType);
}
//Copy the KeyValuePairAdapter<K,T> to a KeyValuePair<K,T>.
else if (classContract.IsKeyValuePairAdapter)
{
_ilg.Call(classContract.GetKeyValuePairMethodInfo);
_ilg.ConvertValue(Globals.TypeOfKeyValuePair.MakeGenericType(classContract.KeyValuePairGenericArguments), _ilg.CurrentMethod.ReturnType);
}
else
{
_ilg.ConvertValue(_objectLocal.LocalType, _ilg.CurrentMethod.ReturnType);
}
}
return((XmlFormatClassReaderDelegate)_ilg.EndMethod());
#endif
}
}
public XmlFormatClassReaderDelegate GenerateClassReader(ClassDataContract classContract)
{
ilg = new CodeGenerator();
bool memberAccessFlag = classContract.RequiresMemberAccessForRead(null);
try
{
ilg.BeginMethod("Read" + classContract.StableName.Name + "FromXml", Globals.TypeOfXmlFormatClassReaderDelegate, memberAccessFlag);
}
catch (SecurityException securityException)
{
if (memberAccessFlag && securityException.PermissionType.Equals(typeof(ReflectionPermission)))
{
classContract.RequiresMemberAccessForRead(securityException);
}
else
{
throw;
}
}
InitArgs();
DemandSerializationFormatterPermission(classContract);
DemandMemberAccessPermission(memberAccessFlag);
CreateObject(classContract);
ilg.Call(contextArg, XmlFormatGeneratorStatics.AddNewObjectMethod, objectLocal);
InvokeOnDeserializing(classContract);
LocalBuilder objectId = null;
if (HasFactoryMethod(classContract))
{
objectId = ilg.DeclareLocal(Globals.TypeOfString, "objectIdRead");
ilg.Call(contextArg, XmlFormatGeneratorStatics.GetObjectIdMethod);
ilg.Stloc(objectId);
}
if (classContract.IsISerializable)
{
ReadISerializable(classContract);
}
else
{
ReadClass(classContract);
}
bool isFactoryType = InvokeFactoryMethod(classContract, objectId);
if (Globals.TypeOfIDeserializationCallback.IsAssignableFrom(classContract.UnderlyingType))
{
ilg.Call(objectLocal, XmlFormatGeneratorStatics.OnDeserializationMethod, null);
}
InvokeOnDeserialized(classContract);
if (objectId == null || !isFactoryType)
{
ilg.Load(objectLocal);
// Do a conversion back from DateTimeOffsetAdapter to DateTimeOffset after deserialization.
// DateTimeOffsetAdapter is used here for deserialization purposes to bypass the ISerializable implementation
// on DateTimeOffset; which does not work in partial trust.
if (classContract.UnderlyingType == Globals.TypeOfDateTimeOffsetAdapter)
{
ilg.ConvertValue(objectLocal.LocalType, Globals.TypeOfDateTimeOffsetAdapter);
ilg.Call(XmlFormatGeneratorStatics.GetDateTimeOffsetMethod);
ilg.ConvertValue(Globals.TypeOfDateTimeOffset, ilg.CurrentMethod.ReturnType);
}
else
{
ilg.ConvertValue(objectLocal.LocalType, ilg.CurrentMethod.ReturnType);
}
}
return((XmlFormatClassReaderDelegate)ilg.EndMethod());
}
