ruby loves dot net

www.visug.bewww.visug.be

Ruby <3 .NETIvan Porto Carrero

http://flanders.co.nzhttp://twitter.com/casualjim

Upcoming sessions

• June 18 : Domain Driven Design (Yves Goeleven)• June 30 : IronRuby (Ivan Porto Carrero)• September 10 : ORMs, NHibernate – Entity Framework

(Davy Brion, Kurt Claeys)• Week of October 5 (TBD) : Dino Esposito• November 18 : Modeling with VSTS2010 (Marcel De Vries)• November 26 : RIA Services (Miguel De Lathouwer

& Steven Van Den Eynde)

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The plan

• CLR, DLR, WTF??• All ur Rubyz are now belongs to us• Ruby why should I care?• Gotcha’s• BDD with Bacon and Caricature• Sinatra has not left the building• IronRuby MVC• Ruby + Silverlight == Teh cake

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CLR as we knew it

Common Type system

Class Loader, GC, JIT, Execution Support

Security

Base Class Libraries

C# VB.NET …

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CLR but mo betterer

Common Type system

Class Loader, GC, JIT, Execution Support

Security

Base Class Libraries

C# VB.NET IronPython

DLR Runtime

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All ur Rubyz are now…

• MRI ‐ “The Normal” Ruby • JRuby ‐ Sun • MacRuby ‐ Apple • IronRuby ‐ Microsoft • Rubinius ‐ EngineYard • MagLev ‐ Gemstone • HotRuby

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All ur Rubyz are now…

• MRI ‐ “The Normal” Ruby • JRuby ‐ Sun • MacRuby ‐ Apple

• IronRuby ‐ Microsoft • Rubinius ‐ EngineYard • MagLev ‐ Gemstone • HotRuby

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Why should I care?

For me the purpose of life is partly to have joy. Programmers often feel joy when they can concentrate

on the creative side of programming, so Ruby is designed to make programmers happy.

- Yukihiro “Matz” Matsumoto

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Why should I care?

Actually, I'm trying to make Ruby natural, not simple. - Yukihiro “Matz” Matsumoto

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Best of breed

If Python was the result of Lisp and C++ having a baby,Ruby is the result of Perl and Smalltalk having a baby.

- MeowMeow Jones, 11/8/2001 on slashdot.

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Duck typing

if it looks like a duckand acts like a duck it might as well be a

duck

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Metaprogramming

The computer should be doing the hard work.That’s what it’s paid to do, after all.

- Larry Wall

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Metaprogramming

I don’t think the idea here is to save memory or speed.The idea behind metaprogramming is

to teach Ruby your conventionsAnd let it do some guessing

In order to save you some code - Why, author of why’s poignant guide to Ruby

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STOP!!!! Demo time

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REPL

Read Eval Print Loop

Read Eval Print Loop

Read Eval Print Loop

Read Eval Print

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STOP!!!! Demo time

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Everything is an object

I invented the term Object-Oriented,and I can tell you I did not have C++ in mind

- Alan Kay

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STOP!!!! Demo time

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Classes are open

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STOP!!!! Demo time

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CLR classes open for business

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STOP!!!! Demo time

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Adding Iron to Ruby

I have always imagined that paradise will be a kind of library- Jorge Luis Borges

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Gotcha’s

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BDD Ruby/CLR interop

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IronRuby MVC

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Sinatra

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Silverlight

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Kweshiunz?

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“A language that doesn't affect the way you think about programming is not worth knowing.”

- Alan Perlis

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References

• http://flanders.co.nz• http://ironruby.net• http://ironruby.info• http://iunknown.com• http://manning.com/carrero• http://rubydoes.net• http://blog.prokrams.com/• http://nightlybuilds.cloudapp.net/Project.

aspx?project=dlr• http://blog.jimmy.schementi.com/

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go_to(http://ironruby.net).play.create.have_fun