Bill Baxter wrote:
> Julio César Carrascal Urquijo wrote:
>> I don't understand your point. You can already write something like:
>>
>> obj.each = (int i) {
>>     writefln(i);
>> };
>>
> 
> How do you set that up?  Something like this?
> 
> class ObjClass
> {
>    class EachClass {
>       void opAssign( void delegate(...) ) {
>            [...]
>       }
>    }
>    EachClass each = new EachClass();
> }
> ObjClass obj = new ObjClass();

That won't work. There is no opAssign.

> Or is there a better way?

In the sense that it works, yes. Something like this:

class ObjClass
{
   void each(void delegate(...) ) {
        [...]
   }
}
ObjClass obj = new ObjClass();


This somewhat abuses the property syntax, but should result in the syntax above.

Julio César Carrascal Urquijo wrote:
> Tom S wrote:
>  > Yup, or
>>
>> obj.each in (int i) {
>>     writefln(i);
>> };
> 
> Well yes, "in" looks better but it doesn't work right now, "=" does.

Sure it works ! :)



import std.stdio;


class Foo {
	int[] data;

	struct Iter_each {
		Foo owner;
		void opIn(void delegate(int) dg) {
			foreach (int d; owner.data) {
				dg(d);
			}
		}
	}

	Iter_each each() {
		Iter_each res;
		res.owner = this;
		return res;
	}
}



void main() {
	Foo foo = new Foo;
	foo.data = [34, 2, 55, 23];

	foo.each in (int i) {
		writefln(i);
	};
}




--
Tomasz Stachowiak

Frits van Bommel wrote:
> Bill Baxter wrote:
> 
>> Julio César Carrascal Urquijo wrote:
>>
>>> I don't understand your point. You can already write something like:
>>>
>>> obj.each = (int i) {
>>>     writefln(i);
>>> };
>>>
>>
>> How do you set that up?  Something like this?
>>
>> class ObjClass
>> {
>>    class EachClass {
>>       void opAssign( void delegate(...) ) {
>>            [...]
>>       }
>>    }
>>    EachClass each = new EachClass();
>> }
>> ObjClass obj = new ObjClass();
> 
> 
> That won't work. There is no opAssign.

Oh yeh, that's right.  :-) I think "opAssign" must have looked familar to me merely because of previous discussions about its lack.

--bb