RubyCocoa

RubyCocoa is a Mac OS X framework that provides a bridge between the Ruby and the Objective-C programming languages, allowing the user to manipulate Objective-C objects from Ruby, and vice versa. It makes it possible to write a Cocoa application completely in Ruby as well as to write an application that mixes Ruby and Objective-C code. An Apple project called MacRuby was under development to replace RubyCocoa in 2008. A proprietary spin-off called RubyMotion was subsequently released in 2012, available for iOS, OS X and Android.

Some useful applications of RubyCocoa are exploration of a Cocoa object's features with irb interactively, prototyping of a Cocoa application, writing a Cocoa application that combines the features of Ruby and Objective-C and wrapping Mac OS X's native GUI for a Ruby script.

RubyCocoa is free software, released under both the Ruby License and the LGPL.

RubyCocoa was started in 2001 by Hisakuni Fujimoto when he implemented a Ruby extension module to wrap NSObject and NSClassFromString function. Later it was integrated with Project Builder (which later became Xcode). In 2002 the project was registered on SourceForge and the development team began to grow.

In 2006 the committers list was first joined by a developer from Apple, Laurent Sansonetti, and then a RubyCocoa presentation was made during WWDC. Apple stated that RubyCocoa will be included and supported in Mac OS X v10.5 “Leopard”.

In August 2008, Sansonetti confirmed that MacRuby "is supposed to replace RubyCocoa." in the future.

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