private static void CreateDeserializeMethod(TypeDefinition wrapper, ModuleDefinition module, IReadOnlyList <IExposedProperty> properties)
{
MethodDefinition m = wrapper.AddMethod <object>("Deserialize",
MethodAttributes.Public | MethodAttributes.Final | MethodAttributes.HideBySig | MethodAttributes.NewSlot | MethodAttributes.Virtual);
ParameterDefinition paraId = m.AddParameter <int>("id");
ParameterDefinition paraReader = m.AddParameter(module.GetTypeReference(typeof(MessagePackReader).MakeByRefType()), "reader");
ParameterDefinition paraOptions = m.AddParameter <MessagePackSerializerOptions>("options");
ILProcessor il = m.BeginEdit();
il.EmitIfElse(properties, (property, index, next, body, fill) =>
{
// if (id == <id>)
fill.Add(ILHelper.Ldarg(il, paraId));
if (property.Id == 0)
{
fill.Add(Instruction.Create(OpCodes.Brtrue, next));
}
else
{
fill.Add(ILHelper.Int(property.Id));
fill.Add(Instruction.Create(OpCodes.Bne_Un, next));
}
}, (property, index, next, fill) =>
{
// return reader.Read()
// return options.Resolver.GetFormatterWithVerify<Type>().Deserialize(ref reader, options)
fill.AddRange(FormatterHelper.GetReadValue(property.FieldTypeComponentAware, module, il, paraReader, paraOptions));
if (property.IsValueType)
{
fill.Add(Instruction.Create(OpCodes.Box, property.FieldTypeComponentAware));
}
fill.Add(Instruction.Create(OpCodes.Ret));
}, fill =>
{
// return null
fill.Add(Instruction.Create(OpCodes.Ldnull));
fill.Add(Instruction.Create(OpCodes.Ret));
});
m.EndEdit();
}
