This content describes the constants that have been added in MacRuby.

Original Constants

Kernel::RUBY_ARCH

CPU name of the architecture which MacRuby is ran.

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>> Kernel::RUBY_ARCH
=> "x86_64"

Kernel::MACRUBY_VERSION

MacRuby version.

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>> Kernel::MACRUBY_VERSION
=> "0.12"

Following method may check whether running your program on MacRuby.

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def is_macruby?
  begin
    MACRUBY_VERSION
    return true
  rescue
    return false
  end
end

Kernel::MACRUBY_REVISION

Git SHA1 Hash which indicates a last commit. (Older MacRuby shows a revision number of SVN)

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>> Kernel::MACRUBY_REVISION
=> "git commit e35df75944e7a13d16f019e2ed1e4ce2406b06af"

Dir::NS_TMPDIR

Path of temporary directory.

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>> Dir::NS_TMPDIR
=> "/var/folders/1z/ff7x15cj7vb24rl38ty0y52w0000gn/T/"