private static InvokeOperation TryCreate <Arg1T, Arg2T, Arg3T, Arg4T, ResultT>(MethodInfo method, ParameterInfo[] parameters)
{
if (method == null)
{
throw new ArgumentNullException("method");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (parameters.Length != 4 || method.ReturnType != typeof(ResultT) || parameters[0].ParameterType != typeof(Arg1T) ||
parameters[1].ParameterType != typeof(Arg2T) || parameters[2].ParameterType != typeof(Arg3T) || parameters[3].ParameterType != typeof(Arg4T))
{
return(null);
}
var wrapper = new MethodCall(typeof(Func <Arg1T, Arg2T, Arg3T, Arg4T, ResultT>), method);
// never happens, just for AOT
#pragma warning disable 1720
if (parameters.Length == int.MaxValue)
{
wrapper.FuncInvoker <Arg1T, Arg2T, Arg3T, Arg4T, ResultT>(null, null);
((Func <Arg1T, Arg2T, Arg3T, Arg4T, ResultT>)null).Invoke(default(Arg1T), default(Arg2T), default(Arg3T), default(Arg4T));
}
#pragma warning restore 1720
return(wrapper.FuncInvoker <Arg1T, Arg2T, Arg3T, Arg4T, ResultT>);
}