/// <summary>
/// Generates IL to write a single value from the stack to the stream
/// </summary>
/// <param name="type">Type of the object on the stack</param>
/// <param name="args">The generate args.</param>
void GenerateWriteTypeIL(Type type, GenerateArgs args)
{
MethodInfo method = GetTypeMethod(type, TypeMethodType.Serialize);
const string valueVar = "writeValue";
const string valueDoneLabel = "_writeValueDone";
DynamicMethodHelper il = args.il;
bool dynamic = IsDynamic && (type.IsValueType == false);
il.BeginScope();
{
il.DeclareLocal(valueVar, type);
il.PopLocalFromObject(valueVar);
if (dynamic)
{
const string notNullLabel = "_dynamicNotNull";
// If value is a reference type then serialize
// NullVersion (-1) and do nothing else. No need to
// save a type name or anything. If not null then
// add type to name table and write the type byte
// before calling serializer to write the instance
il.PushLocal(valueVar);
il.GotoIfTrue(notNullLabel);
il.PushLocal(args.streamVar);
il.PushInt(-1);
il.CallMethod(GetTypeMethod(typeof(byte), TypeMethodType.Serialize));
il.Goto(valueDoneLabel);
il.MarkLabel(notNullLabel);
// push writer for Write(byte) call
il.PushLocal(args.streamVar);
// push nameTable for Add(Type) call
il.DebugWriteNamedLocal(args.nameTableVar);
il.PushLocal(args.nameTableVar);
// push (object)value
// call object.GetType()
il.PushLocal(valueVar);
il.Cast(typeof(object));
il.CallMethod(typeof(object).GetMethod("GetType"));
// push this.Version
il.PushInt(this.Version);
// call TypeNameTable.Add(Type, version)
il.CallMethod(typeof(TypeNameTable).GetMethod("Add", new [] { typeof(Type), typeof(int) })); // Return type byte
// call IPrimitiveWriter.Write(byte)
il.CallMethod(GetTypeMethod(typeof(byte), TypeMethodType.Serialize));
}
if (method.DeclaringType == typeof(IPrimitiveWriter))
{
// push IPrimitiveWriter ; arg 1 for method call
// push elemValue ; arg 2 for method call
il.PushLocal(args.streamVar);
il.PushLocal(valueVar);
}
else
{
// push value
// push TypeSerializationArgs
il.PushLocal(valueVar);
il.PushArg(args.dataArg);
}
il.CallMethod(method);
if (dynamic)
{
il.MarkLabel(valueDoneLabel);
}
}
il.EndScope();
}