/// <summary>
/// Emits the handler method addition, done at end of parsing, Loc_0 is root node instance
/// </summary>
/// <param name="bd">Bd.</param>
/// <param name="evt">passed as arg to prevent refetching it for the 3rd time</param>
public void emitHandlerMethodAddition(EventBinding bd)
{
//fetch source instance with address for handler addition (as 1st arg of handler.add)
il.Emit(OpCodes.Ldloc_0); //push root
CompilerServices.emitGetInstance(il, bd.SourceNA);
il.Emit(OpCodes.Ldloc_0);
CompilerServices.emitGetInstance(il, bd.TargetNA);
string[] membs = bd.TargetMember.Split('.');
for (int i = 0; i < membs.Length - 1; i++)
{
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Ldstr, membs[i]);
il.Emit(OpCodes.Call, CompilerServices.miGetMembIinfoWithRefx);
il.Emit(OpCodes.Call, CompilerServices.miGetValWithRefx);
}
//load handlerType of sourceEvent to create handler delegate (1st arg)
il.Emit(OpCodes.Ldtoken, bd.SourceEvent.EventHandlerType);
il.Emit(OpCodes.Call, CompilerServices.miGetTypeFromHandle);
//load methodInfo (3rd arg)
il.Emit(OpCodes.Ldstr, membs[membs.Length - 1]);
il.Emit(OpCodes.Callvirt, CompilerServices.miCreateDel);
il.Emit(OpCodes.Callvirt, bd.SourceEvent.AddMethod); //call add event
}
/// <summary>
/// Emits cached delegate handler addition in the context of instantiator (ctx)
/// </summary>
public void emitCachedDelegateHandlerAddition(int index, EventInfo evt, NodeAddress address = null)
{
il.Emit(OpCodes.Ldloc_0); //load ref to current graphic object
CompilerServices.emitGetInstance(il, address);
il.Emit(OpCodes.Ldarg_0); //load ref to this instanciator onto the stack
il.Emit(OpCodes.Ldfld, CompilerServices.fiCachedDel);
il.Emit(OpCodes.Ldc_I4, index); //load delegate index
il.Emit(OpCodes.Callvirt, CompilerServices.miGetDelegateListItem);
il.Emit(OpCodes.Callvirt, evt.AddMethod); //call add event
}
/// <summary>
/// Emits the handler method addition, done at end of parsing, Loc_0 is root node instance
/// </summary>
/// <param name="bd">Bd.</param>
/// <param name="evt">passed as arg to prevent refetching it for the 3rd time</param>
public void emitHandlerMethodAddition(EventBinding bd)
{
//fetch source instance with address for handler addition (as 1st arg of handler.add)
il.Emit(OpCodes.Ldloc_0); //push root
CompilerServices.emitGetInstance(il, bd.SourceNA);
//load handlerType of sourceEvent to create handler delegate (1st arg)
il.Emit(OpCodes.Ldtoken, bd.SourceEvent.EventHandlerType);
il.Emit(OpCodes.Call, CompilerServices.miGetTypeFromHandle);
//load target the where the method is defined (2nd arg)
il.Emit(OpCodes.Ldloc_0);
CompilerServices.emitGetInstance(il, bd.TargetNA);
//load methodInfo (3rd arg)
il.Emit(OpCodes.Ldstr, bd.TargetMember);
il.Emit(OpCodes.Callvirt, CompilerServices.miCreateDel);
il.Emit(OpCodes.Callvirt, bd.SourceEvent.AddMethod); //call add event
}
