Category Archives: Programming
Two Steps Forward, One Step Back
Following my last post I integrated typed assertions into the master branch of Lazytest. This makes some changes to the API. Test examples in the it macro can no longer simply return true or false. Instead, they must call the … Continue reading
Typed Assertions Tell You What Hurts
One thing clojure.test did reasonably well was tell you why an assertion failed. Currently, Lazytest fails in this regard. The problem with requiring test functions to return true/false to indicate pass/fail is that they can’t attach any additional information to … Continue reading
A Journey of a Thousand Lines Begins with a Single Test
I have a curious obsession with testing frameworks. The first thing I do with any new programming language is try to write a test framework in it. It’s a useful exercise for exploring the metaprogramming facilities provided by any language. … Continue reading
Spread Thin
With the profusion of “community” web sites around today, it’s getting hard to keep track of where your “community” is. For example, the “Clojure community” exists in 7 places: clojure.org (main documentation) Github (source code) Assembla (bug tracking) Wikibooks (more … Continue reading
Keyword Arguments in Clojure, the Right Way
Update Feb. 10, 2010: I was wrong. Recent discussions indicate that placing optional arguments in-line, as in my first example, is preferred. In the future, Clojure may have destructuring support for this style. For now, this post remains a useful … Continue reading
Clojure-Hadoop 1.0.0
At long last, I have made a formal release of my clojure-hadoop library. Downloads and more information here. The 1.0.0 release is documented, but not in exhaustive detail. Other people have used this successfully, but it may not support all … Continue reading
Agents of Swing
The title of this post would make a good name for a band. Anyway, today I’m going to talk about Swing and concurrency and Clojure. The Swing framework is not thread-safe. That may sound strange at first, but there’s actually … Continue reading
Heating Up Clojure & Swing
Most Swing examples don’t translate well into Clojure because they are so thoroughly embedded in the object-oriented paradigm. A typical Swing example has a main class that extends a container class and implements some *Listener interface. Clojure beginners who try … Continue reading
Taming the GridBagLayout
GUI layout is hard. You’d be crazy to do it without a GUI designer like Netbeans. Well, I’m pretty crazy. So I’m going to do some GUI layout in Clojure. And I’m going to use the most intimidating of Java’s … Continue reading
doto Swing with Clojure
One of the great things about Clojure is how it can make Java programming easier and less verbose. Take Swing. It takes a ton of code to render even a simple GUI. Most tutorials don’t even tackle it without an … Continue reading