Thank you very much, Stuart!

I think it's a good idea for me to start reading Clojure source code
and keep track of the changes, as the language changes so quickly...


On Jan 16, 10:02 am, Stuart Halloway <stuart.hallo...@gmail.com>
wrote:
> Hi Telman,
>
> The signature for agent has changed. Use:
>
>        (def counter (agent 0 :validator number?))
>
> I will update the prose in Beta 6.
>
> Stuart
>
> > I keep running into the following problem trying to supply agent
> > validation function. Here is sample code from page 135 (from book
> > version beta 5)
>
> > (use '[clojure.contrib.except :only (throw-if)])
> > (def counter (agent 0 #(throw-if (not (number? %)) "not a number")))
>
> > triggers the following exception:
>
> > java.lang.IllegalArgumentException: No value supplied for key: user
> > $fn__1...@89f302 (NO_SOURCE_FILE:2)
> > [Thrown class clojure.lang.Compiler$CompilerException]
>
> > I’m using the latest versions of clojure (r1216) and clojure-contrib
> > (r374) on Mac OS X 10.5.6, Java version "1.5.0_16"
>
> > Many thanks,
>
> > Telman
>
> > On Jan 16, 8:49 am, Stuart Halloway <stuart.hallo...@gmail.com> wrote:
> >> Long, long ago (Tuesday) when Beta 5 of the book shipped, there were
> >> some breakages in the sample code due to changes in clojure-
> >> contrib. I
> >> believe everything is now fixed in the github repository 
> >> (http://github.com/stuarthalloway/programming-clojure
> >> ).
>
> >> Summary of the issues:
>
> >> 1. clojure.contrib.seq-util/includes? changed the argument order for
> >> consistency with other operations. This caused problems with the
> >> snippet web app; Compojure is now updated to match the change in
> >> contrib.
>
> >> 2. clojure.contrib.sql/with-results has been removed and replaced  
> >> with
> >> with-query-results. This broke the snippet model. The code is now
> >> fixed and I will update the prose in the next Beta.
>
> >> 3. A change to clojure.lang.Util necessitated a _clean_ rebuild of
> >> contrib and compojure. I have rebuild these dependencies in the lib
> >> directory.
>
> >> 4. A change to clojure.contrib.test-is.is broke a few unit tests. The
> >> book doesn't reference any of these tests directly, but they are now
> >> fixed in the code. You can run the whole test suite with ./
> >> runtests.sh.
>
> >> Let me know if  you find any other issues!
>
> >> Thanks,
> >> Stuart
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