Boston D Language Meetup in Back Bay

[Steven Schveighoffer via Digitalmars-d-announce]

On 11/17/16 10:38 AM, John Colvin wrote:
> On Thursday, 17 November 2016 at 13:59:25 UTC, Steven Schveighoffer wrote:
>> nullStream!char
>>    .bufferedInput
>>    .pushTo(
>>       arrayCastPipe!ubyte
>>       .outputFile("output.txt")
>>    );
>>
>> But then the parameters to the "pushTo" hypothetical function don't
>> know what the source type is before calling. By inserting valves, I
>> get the equivalent thing, but the types all are passed down the chain
>> properly.
>
> Can't you use a template lambda alias argument to pushTo instead, so
> then you can instantiate it inside pushTo?
>
> something like
> nullStream!char
>     .bufferedInput
>     .pushTo!(_ => _
>         .arrayCastPipe!ubyte
>         .outputFile("output.txt")
>     );
> maybe?

I could do that. But I don't like it ;)

I will note that Adrian Matoga's flod library has a different solution 
that I think is similar to this, but I don't understand it very well.

I'm also concerned that using a lambda is going to confuse or prevent 
optimization.

I think with some better naming, the push feature will look better.

-Steve