OO Hello World - IronRuby

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Let’s have a look at the hello world program in IronRuby; another language implemented to run on the DLR runtime.

By the way, you can see my previous post here: http://carlosqt.blogspot.com/2010/06/oo-hello-world.html
where I give some details on WHY these "OO Hello World series" samples.

Version 1 (Minimal):

The minimum you need to type to get your program compiled and running.

class Greet
 @name = ""
 def initialize(name)
  @name = name.capitalize
 end
 def salute
  puts "Hello #@name!"
 end
end

# Greet the world!
g = Greet.new("world")
g.salute

Version 2 (Verbose):

Explicitly adding instructions and keywords that are optional to the compiler.

require "mscorlib"

module GreetProgram 
 class Greet
  @name = ""
  def initialize(name)
   @name = name.capitalize
  end
  def salute
   puts "Hello #@name!"
  end
 end
 
 # Greet the world!
 g = Greet.new("world")
 g.salute  
end

The Program Output:

IronRuby Info:

“IronRuby is an Open Source implementation of the Ruby programming language for .NET, heavily relying on Microsoft's Dynamic Language Runtime.” Taken from: (http://www.ironruby.net/)

Appeared:	2007
Current Version:	1.1.1 alpha  (latest version in "Languages" page)
Developed by:	John Lam + DLR Team
Creator:	John Lam
Influenced by:	Ruby (Yukihiro Matsumoto)
Predecessor Language	RubyCLR?
Predecessor Appeared	2006
Predecessor Creator	John Lam
Runtime Target:	DLR
Latest Framework Target:	4.0
Mono Target:	Yes
Allows Unmanaged Code:	No
Source Code Extension:	“.rb”
Keywords:	38
Case Sensitive:	Yes
Free Version Available:	Yes
Open Source:	Yes
Standard:	No
Latest IDE Support:	SharpDevelop 3.2/4.0 (beta) http://www.icsharpcode.net/OpenSource/SD/Download/
Language Reference:	http://docs.python.org/reference/
Extra Info:	http://en.wikipedia.org/wiki/IronPython http://www.ironpython.net/documentation/