Class: Cplus2Ruby::Compiler

Inherits:
Object
  • Object
show all
Defined in:
lib/cplus2ruby/compiler.rb

Instance Method Summary collapse

Constructor Details

#initialize(model = Cplus2Ruby.model) ⇒ Compiler

Returns a new instance of Compiler.



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# File 'lib/cplus2ruby/compiler.rb', line 5

def initialize(model=Cplus2Ruby.model)
  @model = model
end

Instance Method Details

#commit(file, force_compilation = false, cflags = "", libs = "", &block) ⇒ Object Also known as: startup 



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# File 'lib/cplus2ruby/compiler.rb', line 16

def commit(file, force_compilation=false, cflags="", libs="", &block) 
  n = names(file)

  if not force_compilation
    begin
      require n[:ld]
      block.call if block
      return
    rescue LoadError
    end
  end

  compile(file, cflags, libs)
  require n[:ld]
  block.call if block
end

#compile(file, cflags = "", libs = "") ⇒ Object

Compiles file. Returns the name of the shared object to use by require.



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# File 'lib/cplus2ruby/compiler.rb', line 39

def compile(file, cflags="", libs="")
  n = names(file)

  require 'win32/process' if RUBY_PLATFORM.match('mswin')
  require 'fileutils'

  FileUtils.mkdir_p(n[:dir])

  make = RUBY_PLATFORM.match('mswin') ? 'nmake' : 'make'

  Dir.chdir(n[:dir]) do
    if File.exist?('Makefile')
      system("#{make} clean") 
      File.delete('Makefile')
    end
    write_files(n[:mod])
  end

  pid = fork do
    Dir.chdir(n[:dir])
    $configure_args = {"--srcdir" => Dir.pwd}
    require 'mkmf'
    $CFLAGS = cflags
    $LIBS << (" -lstdc++ " + libs)
    create_makefile(n[:mod])
    exec "#{make}"
  end
  _, status = Process.waitpid2(pid)

  if RUBY_PLATFORM.match('mswin')
    raise if status != 0
  else
    raise if status.exitstatus != 0
  end

  return n[:ld]
end

#names(file) ⇒ Object 



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# File 'lib/cplus2ruby/compiler.rb', line 77

def names(file) 
  require 'rbconfig'
  base = File.basename(file)
  dir = File.dirname(file)
  mod, ext = base.split(".") 
  ld = "#{dir}/#{mod}.#{Config::CONFIG['DLEXT']}"
  { :file => file,
    :base => base,
    :dir  => dir,
    :mod  => mod,
    :ext  => ext,
    :ld   => ld }
end

#write_files(mod_name) ⇒ Object 



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# File 'lib/cplus2ruby/compiler.rb', line 9

def write_files(mod_name)
  cpp_cg = Cplus2Ruby::CppCodeGenerator.new(@model)
  wrap_cg = Cplus2Ruby::WrapperCodeGenerator.new(@model)
  cpp_cg.write_files(mod_name)
  wrap_cg.write_files(mod_name)
end