No show?

[Ken Restivo]

Hi all,

I'm curious why the "show" function got abandoned when migrating from monolithic
contrib.repl-utils to clojure.repl?

http://dev.clojure.org/display/design/Where+Did+Clojure.Contrib+Go

It looks like it would have been useful. Does anything replace it?

Thanks.

-ken

[Stuart Sierra]

clojure.reflect/reflect gets you the same information as a big 'ole data structure. You can pprint it for readability.

The only thing that was not ported was the formatted text output, which would be easy enough to reproduce based on `reflect`.

-S

[Stuart Halloway]

clojure.reflect/reflect gets you the same information as a big 'ole data structure. You can pprint it for readability.

The only thing that was not ported was the formatted text output, which would be easy enough to reproduce based on `reflect`.

In particular, reflect + clojure.pprint/print-table.

Stu

Stuart Halloway
Clojure/core
http://clojure.com

[Ken Restivo]

On Thu, Feb 09, 2012 at 11:41:31AM -0400, Stuart Halloway wrote:
> > clojure.reflect/reflect gets you the same information as a big 'ole data structure. You can pprint it for readability.
> >
> > The only thing that was not ported was the formatted text output, which would be easy enough to reproduce based on `reflect`.
>
> In particular, reflect + clojure.pprint/print-table.
>

=> (require 'clojure.reflect)
nil
=> (require 'clojure.pprint)
nil
=> (clojure.pprint/print-table (clojure.reflect/reflect Math))
ClassCastException clojure.lang.Keyword cannot be cast to java.util.Map$Entry clojure.lang.APersistentMap$KeySeq.first (APersistentMap.java:132)

But reflect is useful enough just as a map, so problem solved, thanks!

-ken

[Michał Marczyk]

On 11 February 2012 10:35, Ken Restivo <k...@restivo.org> wrote:
> => (clojure.pprint/print-table (clojure.reflect/reflect Math))
> ClassCastException clojure.lang.Keyword cannot be cast to java.util.Map$Entry  clojure.lang.APersistentMap$KeySeq.first (APersistentMap.java:132)

print-table expects a sequence of maps, e.g.

(print-table (:members (reflect Math)))

or

(print-table (:members (reflect Math :ancestors true)))

to include inherited members.

Sincerely,
Michał

[Sean Corfield]

On Sat, Feb 11, 2012 at 6:30 PM, Michał Marczyk
<michal....@gmail.com> wrote:
> print-table expects a sequence of maps, e.g.
>
> (print-table (:members (reflect Math)))

Wow! I had no idea how useful that could be... Learn something new
every day! (and, lately, that's a new Clojure function every day...)
--
Sean A Corfield -- (904) 302-SEAN
An Architect's View -- http://corfield.org/
World Singles, LLC. -- http://worldsingles.com/

"Perfection is the enemy of the good."
-- Gustave Flaubert, French realist novelist (1821-1880)

[John Szakmeister]

On Sat, Feb 11, 2012 at 10:15 PM, Sean Corfield <seanco...@gmail.com> wrote:
> On Sat, Feb 11, 2012 at 6:30 PM, Michał Marczyk
> <michal....@gmail.com> wrote:
>> print-table expects a sequence of maps, e.g.
>>
>> (print-table (:members (reflect Math)))
>
> Wow! I had no idea how useful that could be... Learn something new
> every day! (and, lately, that's a new Clojure function every day...)

That is amazing! Thanks for the tip Michał!

-John

[Asim Jalis]

This is a good workaround—however, I still wish repl-utils/show was still there. It was nice to always have it there instead doing this defn every time I need it to explore a Java API.

On Sat, Feb 11, 2012 at 6:30 PM, Michał Marczyk <michal....@gmail.com> wrote:

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