IronRuby for the .NET Developer

+ + = IronRuby for the .NET Developer Cory Foy - Cory Foy, LLC foyc@coryfoy.com - @cory_foy

Hello, IronRuby!

History Ruby and .NET Ruby to .NET Ruby CLR Project RubyCLR All attempted to run Ruby on top of the CLR

History CLR 2.0 (.NET 3.0 and 3.5 were still CLR 2.0) No dynamic dispatch Everything had to be compiled Lots of magic, and shims

History CLR 2.0 (.NET 3.0 and 3.5 were still CLR 2.0) No dynamic dispatch Everything had to be compiled Lots of magic, and shims CREDIT: HTTP://WWW.FLICKR.COM/PHOTOS/37341680@N04/4278580062

History alias alias_method_missing method_missing def method_missing(name, *params) alias_method_missing(name, *params) unless name == :Count create_ruby_instance_method(self.class, 'Count') do include 'System.Collections' ldarg_2 call 'static Marshal::ToClrObject(VALUE)' call 'ArrayList::get_Count()' call 'static Marshal::ToRubyNumber(Int32)' ret end self.Count end

History CLR 4.0 Dynamic keyword (C#)

History CLR 4.0 Dynamic keyword (C#) Calculator calc = GetCalculator(); int sum = calc.Add(1, 3);

History CLR 4.0 Dynamic keyword (C#) var calc = GetCalculator(); int sum = calc.Add(1, 3);

History CLR 4.0 Dynamic keyword (C#) object calc = GetCalculator(); Type calcType = calc.GetType(); object res = calcType.InvokeMember("Add", BindingFlags.InvokeMethod, null, new object[] { 10, 20 }); int sum = Convert.ToInt32(res);

History CLR 4.0 Dynamic keyword (C#) dynamic calc = GetCalculator(); int sum = calc.Add(1, 3);

History DLR Introduced in 2007 Set of libraries to assist language developers Still runs on the CLI, and can access the CLR Standardizes the implementation of dynamic languages on the CLI/CLR

History IronRuby John Lam hired by Microsoft in 2006 Announced in 2007 at MIX7 Goal to make Ruby a ﬁrst-class citizen Completely rewritten to take advantage of the DLR

History DLR Dynamic Language Runtime (DLR) Common Language Runtime (CLR)

History DLR Dynamic Language Runtime (DLR) Common Hosting Model Common Language Runtime (CLR)

History DLR Dynamic Language Runtime (DLR) Common Runtime Hosting Model Common Language Runtime (CLR)

History DLR Dynamic Language Runtime (DLR) Common Language Runtime Hosting Model Implementation Common Language Runtime (CLR)

History Ruby Dynamic Language Runtime Common Language Runtime

History Ruby VB C# Dynamic Language Runtime Common Language Runtime

WHY RUBY?

RUBY IS LOVE!

CREDIT: HTTP://WWW.FLICKR.COM/ PHOTOS/19684903@N00/317182464 CREDIT: HTTP://WWW.FLICKR.COM/ PHOTOS/WWWORKS/3800306463 RUBY IS LOVE! CREDIT: HTTP://WWW.FLICKR.COM/ PHOTOS/STUCKINCUSTOMS/2366980580 CREDIT: HTTP://WWW.FLICKR.COM/ PHOTOS/EXPRESSMONORAIL/2631659122

CREDIT: HTTP://WWW.FLICKR.COM/PHOTOS/BILLBURRIS/2822607830

TYPE SAFETY CODE SAFETY OBJECT GRAPHS DEBUGGING STATIC CODE ANALYSIS SEALED TYPES INTELLISENSE COMPILER CATCHES ERRORS

TEST ALL THE FRICKIN’ TIME

CREDIT: HTTP://WWW.FLICKR.COM/PHOTOS/FATBOYKE/2668411239

Metaprogramming CREDIT: HTTP://WWW.FLICKR.COM/ PHOTOS/CHOCONANCY/2470073711 All Classes Are Open Deﬁnitions are active All method calls have a receiver Classes are objects

WHAT IS THIS? AND WHY IS IT HERE?

Duck Typing

Open Classes CREDIT: HTTP://COMMONS.WIKIMEDIA.ORG/WIKI/ FILE:NEON_OPEN_SIGN.JPG

Monkey Patching

method_missing CREDIT: HTTP://WWW.FLICKR.COM/ PHOTOS/TAITOH/3029653729/

Dynamism CREDIT: HTTP://WWW.FLICKR.COM/PHOTOS/ LABGUEST/3510995344/

RubyGems Standardized Packaging System Central Repository for hosting packages Allows for installation and management of multiple installed versions

RubyGems

RubyGems THAT’S IT!

IronRuby Basics

IronRuby Basics Installing

IronRuby Basics Installing http://ironruby.net/Download

IronRuby Basics Installing http://ironruby.net/Download Download Windows Installer

IronRuby Basics Installing http://ironruby.net/Download Download Windows Installer ???

IronRuby Basics Installing http://ironruby.net/Download Download Windows Installer ??? Proﬁt!!!

IronRuby Basics

IronRuby Basics ..and what did we just install?

IronRuby Basics ..and what did we just install? bin - IronRuby executables (ir.exe, etc)

IronRuby Basics ..and what did we just install? bin - IronRuby executables (ir.exe, etc) lib - Helpers for including assemblies and other common tasks

IronRuby Basics ..and what did we just install? bin - IronRuby executables (ir.exe, etc) lib - Helpers for including assemblies and other common tasks samples - Contains the Tutorial app and others

IronRuby Basics ..and what did we just install? bin - IronRuby executables (ir.exe, etc) lib - Helpers for including assemblies and other common tasks samples - Contains the Tutorial app and others silverlight - Contains the Silverlight Dynamic Languages SDK

IronRuby Basics ..and, how the heck did it just do that? Dynamic Language Runtime (DLR) Common Language Runtime Hosting Model Implementation Common Language Runtime (CLR)

IronRuby Basics ..and, how the heck did it just do that? Runtime Call sites Binders Rules Common Language Runtime (CLR)

IronRuby Basics ..and, how the heck did it just do that? Language Implementation Language ASTs Compiler Context Common Language Runtime (CLR)

IronRuby Basics ..and, how the heck did it just do that? Common Hosting Model ScriptRuntime ScriptEngine ScriptScope ScriptSource Common Language Runtime (CLR)

Integration Calling .NET from IronRuby Calling IronRuby from .NET WinForms / WPF / Silverlight Cucumber / RSpec

Get Involved! Website - http://ironruby.net http://ironruby.codeplex.com/ http://github.com/ironruby Mailing List - http://rubyforge.org/mailman/listinfo/ ironruby-core foyc@coryfoy.com | @cory_foy Slides @ http://blog.coryfoy.com

IronRuby for the .NET Developer

by Cory Foy on Mar 17, 2010

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