I've just started learning protocols, deftype, etc. The first thing I
did was try to extend a Clojure type (maps) to operate as a
specialized Java Swing interface (AttributeSet), forgetting that
interfaces are not protocols; i.e.
(extend-type clojure.lang.PersistentArrayMap
javax.swing.text.Att
> Nope, can't be done. Java interfaces can't do this.
I'm glad I asked the question. Given that it can't be done, any
suggestions for the best way of handling this interop scenario?
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To post to this gro
to pass
in one argument as a map itself, but that seems to defeat the
purpose.)
On Feb 10, 10:32 am, Cedric Greevey wrote:
> On Fri, Feb 10, 2012 at 1:07 PM, Aaron Cohen wrote:
> > On Fri, Feb 10, 2012 at 3:13 AM, drewn wrote:
> >> I've just started learning protocols, d
I had this problem too. I tried to do it in Pinot+Noir. Haven't
figured it out yet, so curious to see if there's any success with
this!
On Dec 16, 1:05 pm, bob wrote:
> here is a link to both:https://gist.github.com/1487157
> (hopefully that is what you meant by create a paste. first time
> tr
I've been trying to write a macro to generate predicates from maps,
for instance the map {1 :one 2 :two} would define two predicates, one?
and two? Here's the first part of the macro:
(defmacro make-predicate [keyword-pair]
`(defn ~(symbol (str (name (nth (eval keyword-pair) 1)) "?")) [~'x]
Thank you, that works great! It's a nice use of destructuring too,
which I should of thought of.
I guess this is one case where solving the problem in pieces does not
help. Actually, I seem to remember seeing idioms like that for other
macros over sequences. I understand a little more now why.
