Objective-C source code

Question

Where can I find the source code for the Objective-C language? Is it open-source or is there an open-sourced implementation of it available?

Answer 1

It really depends on what you mean by Objective-C, there are compilers, runtimes and libraries for it.

• http://opensource.apple.com/ Contains much of Apple's source code for OS X and iOS.
• you can also see http://clang.llvm.org/ for a compiler.
• GNUstep is an open source implementation of OpenStep (Cocoa).

Answer 2

I think you are asking for Cocoa - and this is not open source. All you have are the header and reverse engineering tools.