Iron Ruby for the NET Developer Cory Foy

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

• Hello, Iron. Ruby!

History Ruby and. NET Ruby to. NET Ruby CLR Project Ruby. CLR 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 CREDIT: HTTP: //WWW. FLICKR. COM/PHOTOS/37341680@N 04/4278580062

History alias_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: : To. Clr. Object(VALUE)' call 'Array. List: : get_Count()' call 'static Marshal: : To. Ruby. Number(Int 32)' ret end self. Count end

History CLR 4. 0 Dynamic keyword (C#) object calc = Get. Calculator(); var calc = Get. Calculator(); Calculator dynamic calc = Get. Calculator(); Type calc. Type = calc. Get. Type(); int sumres == calc. Add(1, 3); object = calc. Type. Invoke. Member("Add", Binding. Flags. Invoke. Method, null, new object[] { 10, 20 }); int sum = Convert. To. Int 32(res);

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 Iron. Ruby John Lam hired by Microsoft in 2006 Announced in 2007 at MIX 7 Goal to make Ruby a first-class citizen Completely rewritten to take advantage of the DLR

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

History Ruby VB C# Dynamic Language Runtime Common Language Runtime

WHY RUBY?

CREDIT: http: //www. flickr. com/photos/19684 903@N 00/317182464 CREDIT: http: //www. flickr. com/photos/wwwo rks/3800306463 RUBY IS Love! CREDIT: http: //www. flickr. com/photos/stuckincu stoms/2366980580 CREDIT: http: //www. flickr. com/photos/expressm onorail/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/PHO TOS/CHOCONANCY/2470073711 All Classes Are Open Definitions are active All method calls have a receiver Classes are objects

Duck Typing

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

Monkey Patching

Dynamism CREDIT: HTTP: //WWW. FLICKR. COM/PHOTOS/LABG UEST/3510995344/

method_missing CREDIT: HTTP: //WWW. FLICKR. COM/PHO TOS/TAITOH/3029653729/

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

Ruby. Gems THAT’S IT!

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

Iron. Ruby Basics. . and what did we just install? bin - Iron. Ruby 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

Iron. Ruby Basics. . and, how the heck did it just do that? Dynamic Language Common Language Runtime Implementation Hosting Runtime Model(DLR) Common Language Script. Runtime Call ASTs sites Script. Engine Runtime Binders Script. Scope Compiler Script. Source Rules Hosting Model Context Implementation Common Language Runtime (CLR)

Integration Calling. NET from Iron. Ruby Calling Iron. Ruby from. NET Win. Forms / 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