Auto field member?

[Hanh via Digitalmars-d-learn]

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