Anyone have any experience with Crystal?

Crystal Forum
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Thanks for the link @bcardiff :023:

Are you a Crystal dev btw? I’m sure I’ve seen you about on Twitter :003:

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Yeap @AstonJ. There are some commits, experiments and shards here and there. Lucky me, I work at Manas with Juan, Ary, and the rest of the team :slight_smile:

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23

Nice one - when I first saw you I thought COOL - someone into Crystal from Cardiff (I live near Cardiff, haha).

Keep up the good work, Crystal, in many ways, seems like the spiritual successor to Ruby :slight_smile:

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This looks good: http://www.crystalforrubyists.com

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I’ve built a test app in Crystal but hit a lot of “Wish there was a gem for this” (that I know exists for Ruby). I ended up hitting a wall of what I could do with it and had to jump back to jump back to ruby. I think the app was a HTML parser.
It’s a nice language though, just really young.
My 2 cents.

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27

Crystal 0.14.1 was just released. http://crystal-lang.org/2016/03/21/crystal-0.14.1-released.html

The major change is a build-in playgound, which looks kinda like Jupyter for Python. Awesome!

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https://twitter.com/mperham/status/733873632355586049

:023:

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29

Recently came across this video, seems interesting.

Hope we can see more from Crystal soon, am really getting interested in it.

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30

Crystal is starting to look very good!

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31

I’m so glad Youtube has faster playback options.

I think my two favorite insights from the video are the inline assembly and the benchmarking with units smaller than milliseconds.

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32

Has anyone tried calling Crystal from Ruby using FFI or Fiddle? That would be killer!

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33

Here’s Frost - Crytal’s Rails clone… like Rails but on steroids :lol:

Here is some sample code:

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34

Looks like there’s a lot of work to do there still. Kemal looks nice too. I’d like to see a crystal version of Padrino, built on top of Kemal, too. I mean, while we’re re-building ruby stuff in crystal :wink:

Seriously though… calling crystal from ruby through FFI would be killer. I already have a huge Ruby/Rails investment, and that would an awesome way to begin introducing crystal to the stack.

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35

While I agree that having Ruby style code compile and integrate with regular Ruby would be “killer”, the one drawback I see with using Crystal with Ruby is that you’d have two garbage collectors running. I asked this same question on their Google Group back in March and I was pointed to StackOverflow: Can a Crystal library be statically linked to from C? And the answer is yes.

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36

When you guys say “calling crystal from ruby through FFI” would it be like building ruby extensions using crystal? I was following crystal a while ago and stumbled on this back then: GitHub - manastech/crystal_ruby: Write Ruby extensions in Crystal

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37

I guess I didn’t think about the extra GC. Rust still is a better option in that case, I suppose.

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Yes. That’s exactly what I was asking about.

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http://www.mikeperham.com/2016/05/25/sidekiq-for-crystal/

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Here is a listing of libraries already written in crystal: http://crystalshards.xyz

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