IronRuby for the.NET Developer Cory Foy - Cory Foy, LLC + + =

Hello, IronRuby!

Ruby

IronRuby

Ruby and WinForms

Ruby and Silverlight

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 CREDIT:

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#) Calculator calc = GetCalculator(); int sum = calc.Add(1, 3); var calc = GetCalculator(); int sum = calc.Add(1, 3); object calc = GetCalculator(); Type calcType = calc.GetType(); object res = calcType.InvokeMember("Add", BindingFlags.InvokeMethod, null, new object[] { 10, 20 }); int sum = Convert.ToInt32(res); dynamic calc = GetCalculator(); int sum = calc.Add(1, 3);

History Dynamic Keyword Calculator calc = GetCalculator(); int sum = calc.Add(1, 3);

History Dynamic Keyword var calc = GetCalculator(); int sum = calc.Add(1, 3);

History Dynamic Keyword 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 Dynamic Keyword 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) Common Hosting Model Runtime Language Implementation

History Ruby Common Language Runtime Dynamic Language Runtime C# VB

WHY RUBY?

RUBY IS Love! CREDIT: ks/ ks/ CREDIT: CREDIT: onorail/ onorail/ CREDIT: stoms/ stoms/

CREDIT:

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

TEST ALL THE FRICKIN’ TIME

CREDIT:

Metaprogramming All Classes Are Open Definitions are active All method calls have a receiver Classes are objects CREDIT: TOS/CHOCONANCY/

Duck Typing

Open Classes CREDIT: EON_OPEN_SIGN.JPG

Monkey Patching

Dynamism CREDIT: UEST/ /

method_missing CREDIT: TOS/TAITOH/ /

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

RubyGems THAT’S IT!

IronRuby Basics Installing Download Windows Installer ??? Profit!!!

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? Common Language Runtime (CLR) Dynamic Language Runtime (DLR) Common Hosting Model Runtime Language Implementation ASTs Language Context CompilerRuntime Call sites Binders Rules Common Hosting Model ScriptRuntimeScriptEngine ScriptScopeScriptSource

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

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