That’s the title of my presentation at Dog Food Conference 2014, 29-30 September, in Columbus, Ohio. If you found my post on "Test-Only Development" with the Z3 Theorem Prover was interesting, then you’ll love this. What if simply writing "unit tests" was enough to produce a program which makes them pass? What if your compiler could [...]

It is the summer, a time to cool off and enjoy vacations – so let’s keep it light, and hopefully fun, today! A couple of days ago, during his recent San Francisco visit, @tomaspetricek brought up an idea that I found intriguing. What if you had two images, and wanted to recreate an image similar to the first one, using only the pixels from the second? To make this real, let’s take two images - a portrait by Velasquez, and one by Picasso, which I have conveniently cropped to be of identical size. What we a[...]

I never notice that IIS Express doesn’t listen to web requests other than localhost. So, to my surprise, when I try http://127.0.0.1, I got HTTP 400, Bad Request instead.     Change 127.0.0.1 to localhost and everything is fine.   Anyway, you can set your IIS Express to let it listen to a request for … Continue reading →

In the first part of the series I waked through how I came upon Metaprogramming and IronPython in particular. I also showed some simple examples with it. In this post I'll be going through creating a Deserializer with IronPython and hopefully learning something along the way. In case you missed part 1 it's available here Metaprogramming with IronPython - Part 1 Introducing our interface The interface we'll be using in this test is the IDeserializer interface from Seekwell using System.Collections.[...]

While writing Seekwell there were several ideas that came and went trying to optimize the deserialization from IDataReader to IEnumerable<T>. The minimum viable product was to simply use reflection. That of course was slow so we cached as much of the reflection as we could. What if we created a deserializer that would write code to do the deserialization for a given type? The .net framework has several ways of essentially compiling code at runtime. Microsoft.CSharp.CSharpCodeProvider and System.Reflec[...]