# Try to have the most efficient implementation of the method dispatch
	fun send_optimize(callsite: CallSite, args: Array[Instance]): nullable Instance
	do
		var recv = args.first
		var mtype = recv.mtype
		var ret = send_commons(callsite.mproperty, args, mtype)
		if ret != null then return ret

		if callsite.status == 0 then callsite.optimize(recv)

		var propdef
		if callsite.status == 1 then
			propdef = method_dispatch_sst(recv.vtable.internal_vtable, callsite.offset)
		else
			propdef = method_dispatch_ph(recv.vtable.internal_vtable, recv.vtable.mask,
				callsite.id, callsite.offset)
		end

		#TODO : we need recompilations here
		callsite.status = 0
		return self.call(propdef, args)
	end