Forum: Ruby ffi-swig-generator 0.2.1

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Andrea F. (Guest)
on 2009-03-09 01:26
(Received via mailing list)
ffi-swig-generator version 0.2.1
    by Andrea F.


ffi-swig-generator is a ruby-ffi wrapper code generator based on SWIG
interface files.

ffi-swig-generator is able to traverse a XML parse tree file generated
by the +swig+ command and to produce a ruby-ffi interface file from

ffi-swig-generator is shipped with a command line tool (ffi-gen) and a
task that automates the code generation process.

ffi-swig-generator XML capabilities are provided by nokogiri.


* 1 minor enhancement
  * Removed old lib/ffi-generator.rb file.


* The program is able to generate:
  * all C native types
  * #define constants
  * typedefs
  * struct, union, array and enum types
  * callbacks (pointers to functions)
* Naive indentation of the generated code


>From command line:

  ffi-gen mylib.xml mylib.rb

>From a Rakefile:

  require 'ffi-swig-generator' :input_fn => 'my_interface_dir/*.i'
output_dir => 'my_output_dir'


* rake >= 0.8.3
* nokogiri >= 1.1.1
* swig >= 1.3


To download and install from rubygems:

  [sudo] gem install ffi-swig-generator

To download the develpment trunk:

  hg clone


See the examples in examples/ folder.

libc.i is an interface file containing some excerpt of libc functions.

wiiuse.i is a enough complex example of a C header file interface. It
reproduces the content of wiiuse.h, the header file of the wiiuse
library. wiiuse is a C library that handles the connection with
Nintendo Wiimote devices. The interface file is almost a mere
copy/paste from the original header file. See to get updated revision of
ffi-wiiuse library.
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