Hi,

Is there a way to declare a class field 'auto'? I have a problem when I try to 'promote' a variable to a field.

import std.csv;
import std.typecons;

class Test {
	this() {
		auto text = "Joe,Carpenter,300000\nFred,Blacksmith,400000\r\n";
    	        auto reader = csvReader!(Tuple!(string, string, int))(text); // how to make this a field?
    }
}

csvReader returns a private type so I can't specify the type explicitly.

Thanks,
--h

On 02/03/16 3:50 PM, Hanh wrote:
> Hi,
>
> Is there a way to declare a class field 'auto'? I have a problem when I
> try to 'promote' a variable to a field.
>
> import std.csv;
> import std.typecons;
>
> class Test {
>      this() {
>          auto text = "Joe,Carpenter,300000\nFred,Blacksmith,400000\r\n";
>                  auto reader = csvReader!(Tuple!(string, string,
> int))(text); // how to make this a field?
>      }
> }
>
> csvReader returns a private type so I can't specify the type explicitly.
>
> Thanks,
> --h

You have two options.
a) parse and store into your own data structure.
b) use std.traits ReturnType to get the type to declare.