• Alexandr Druzhinin (14/14) Oct 02 2013 I'm curious what is the best way to code like this:
• bearophile (8/18) Oct 02 2013 It's often a good idea to use typeof to keep the code more DRY
• Alexandr Druzhinin (15/21) Oct 02 2013 I'm sure keeping the code dry and clean is very good idea, but using
• bearophile (14/15) Oct 02 2013 I meant something more like this, but I don't know how much of an

Alexandr Druzhinin <drug2004 bk.ru> writes:

I'm curious what is the best way to code like this:

//		    request_id  zoom  x     y     path    url
auto msg = receiveOnly!(size_t, zoom, uint, uint, string, string)();

or like this

auto msg = receiveOnly!(
	typeof(request_id),
	typeof(zoom),
	typeof(x),
	typeof(y),
	typeof(path),
	typeof(url)
)();

Or may be I'm worrying about nonsense and better I'd start thinking 
about more useful things? :)

"bearophile" <bearophileHUGS lycos.com> writes:

Alexandr Druzhinin:

 auto msg = receiveOnly!(
 	typeof(request_id),
 	typeof(zoom),
 	typeof(x),
 	typeof(y),
 	typeof(path),
 	typeof(url)
 )();

 Or may be I'm worrying about nonsense and better I'd start 
 thinking about more useful things? :)

It's often a good idea to use typeof to keep the code more DRY 
and safer.

Another possible solution is to put the variables in some kind of 
tuple, take its types and use them with a trailing [] to pass 
them all to receiveOnly.

Bye,
bearophile

Alexandr Druzhinin <drug2004 bk.ru> writes:

02.10.2013 22:47, bearophile пишет:
 It's often a good idea to use typeof to keep the code more DRY and safer.

I'm sure keeping the code dry and clean is very good idea, but using 
typeof is rather verbose and just is unusual and verbose a little bit.

 Another possible solution is to put the variables in some kind of tuple,
 take its types and use them with a trailing [] to pass them all to
 receiveOnly.

 Bye,
 bearophile

Something like this:

alias Tuple!(
     typeof(request_id),
     typeof(zoom),
     typeof(x),
     typeof(y),
     typeof(path),
     typeof(url)
) TileDescription;

// wait for tile descripton to process
auto msg = receiveOnly!TileDescription();

? I didn't understand about trailing []

"bearophile" <bearophileHUGS lycos.com> writes:

Alexandr Druzhinin:

 ? I didn't understand about trailing []

I meant something more like this, but I don't know how much of an 
improvement this is:


import std.typecons, std.typetuple;

template Foo(T1, T2) {
     enum Foo = 1;
}

void main() {
     int x;
     float f;
     enum y = Foo!(typeof(TypeTuple!(x, f)));
}


Bye,
bearophile