private static void ImplementDeserializationConstructor(TypeBuilder typeBuilder, System.Type parentType)
{
var parameterTypes = new[] { typeof(SerializationInfo), typeof(StreamingContext) };
var constructor = typeBuilder.DefineConstructor(constructorAttributes, CallingConventions.Standard, parameterTypes);
constructor.SetImplementationFlags(MethodImplAttributes.IL | MethodImplAttributes.Managed);
var IL = constructor.GetILGenerator();
ProxyBuilderHelper.CallDefaultBaseConstructor(IL, parentType);
//Everything is done in NHibernateProxyObjectReference, so just return data.
IL.Emit(OpCodes.Ret);
}
private static void ImplementConstructor(TypeBuilder typeBuilder, System.Type parentType, FieldInfo proxyInfoField)
{
var constructor = typeBuilder.DefineConstructor(constructorAttributes, CallingConventions.Standard, new[] { typeof(NHibernateProxyFactoryInfo) });
constructor.SetImplementationFlags(MethodImplAttributes.IL | MethodImplAttributes.Managed);
var IL = constructor.GetILGenerator();
ProxyBuilderHelper.CallDefaultBaseConstructor(IL, parentType);
// __proxyInfo == proxyInfo;
IL.Emit(OpCodes.Ldarg_0);
IL.Emit(OpCodes.Ldarg_1);
IL.Emit(OpCodes.Stfld, proxyInfoField);
IL.Emit(OpCodes.Ret);
}
private static void ImplementDeserializationConstructor(TypeBuilder typeBuilder, System.Type parentType)
{
var parameterTypes = new[] { typeof(SerializationInfo), typeof(StreamingContext) };
var constructor = typeBuilder.DefineConstructor(constructorAttributes, CallingConventions.Standard, parameterTypes);
constructor.SetImplementationFlags(MethodImplAttributes.IL | MethodImplAttributes.Managed);
var IL = constructor.GetILGenerator();
if (typeof(ISerializable).IsAssignableFrom(parentType))
{
var baseConstructor = parentType.GetConstructor(
BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
null,
parameterTypes,
null);
if (baseConstructor == null)
{
// Throw new InvalidOperationException(<message>);
IL.Emit(
OpCodes.Ldstr,
$"Proxy for class {parentType.FullName} cannot be deserialized because the class implements " +
$"{nameof(ISerializable)} without having a deserialization constructor (see CA2229).");
IL.Emit(OpCodes.Newobj, InvalidOperationWithMessageConstructor);
IL.Emit(OpCodes.Throw);
}
else
{
IL.Emit(OpCodes.Ldarg_0);
IL.Emit(OpCodes.Ldarg_1);
IL.Emit(OpCodes.Ldarg_2);
IL.Emit(OpCodes.Call, baseConstructor);
}
}
else
{
ProxyBuilderHelper.CallDefaultBaseConstructor(IL, parentType);
}
// Everything else is done in FieldInterceptorObjectReference.
IL.Emit(OpCodes.Ret);
}