Browse by Tags
All Tags »
F# (RSS)
While updating my VsVim editor extensions for Beta2 [1] I got hit by a change in the way F# exposed discriminated unions in metadata. My extension consists of a core F# component with a corresponding set of unit tests written in C#. It’s mostly
Read More...
I just released version 0.5.0 of VsVim: a vim emulation editor extension for Visual Studio 2010 Beta1 written in F#. This is a hobby project I’ve been working on for awhile now. I expect to continue updating this release as time goes on as I use it on
Read More...
In my projects with F#, I often find that I know exactly what type of sequence transformation I want to run, yet I spend all of my time trying to find it!!! The problem is I’m used to query comprehensions in LINQ terminology. Select, Where
Read More...
Is it better to be wrong once or to be right then think you’re wrong but find out you were right but wrong about being wrong? Besides the obvious be right the first time, it’s certainly an educational experience. Here’s the original sample: let
Read More...
In my last post I went over the differences between using a continuation in F# and C# . As it turns out I was right about the limits and symptoms but wrong about the reason. The F# code does indeed generate tail calls for part of the continuation. However
Read More...
Lately I’ve been playing quite a bit with F#. I have several hobby projects I’m working on that take up a bit of my time. But when I’m not playing around with F# I’m exploring ways to apply certain functional patterns to actual coding on the
Read More...
In my previous post I discussed creating an Option style construct for C#/.Net. This post is a followup with the complete code snippet. It’s been updated in response to several bits of feedback I received. Namely Option is now a struct
Read More...
F# has a handy method called Unfold. Think of it as the logical opposite of an Aggregate function. Aggregates take a sequence of elements and convert them to a single element. An unfold method will take a single element and turn it into
Read More...
Sorry for the terrible pun in the title. I wanted to blog about developing an F# style Option class for C# and I couldn't resist. The basics of an Option class are very straight forward. It's a class that either has a value or doesn't.
Read More...
Problem #2 came quite a bit faster. The yield syntax in F# is very similar to the C# iterator syntax and made translating this sample a breeze. As a commenter posted, in problem #1, I would've been better served to use Seq.filter as opposed to Seq.choose
Read More...
One of the lacking's of the latest F# CTP is debugger visualization support for the built-in list types. Viewing a list in the debugger is decidedly tedious compared to the mscorlib collection classes. Take the following quick code sample
Read More...
I've been looking for some new problems to work on in F# to get more comfortable with the language. I've been rather slack of late because of other projects but I had a little bit of time this week. I decided it would be fun to join the crowd
Read More...
I had a little bit of time this weekend to download the F# CTP. The IDE portion of the CTP is a huge improvement over the previous CTP. In particular the intellisense engine feels much more smooth, is available in new places and has much better
Read More...
A new version of the F# CTP was released today. There are a lot of new improvements to the language and project system. Check it out here
Read More...
I'm a bit busier than I thought I would be after returning from vacation. But I had a little bit of time to play around with the implementation again today. Thanks to all the suggestions in the comments from the previous post . This
Read More...
