source: extensions/gsdl-video/trunk/installed/cmdline/lib/ruby/1.8/irb/ext/loader.rb@ 18425

#
#   loader.rb - 
#       $Release Version: 0.9.5$
#       $Revision: 11708 $
#       $Date: 2007-02-13 08:01:19 +0900 (Tue, 13 Feb 2007) $
#       by Keiju ISHITSUKA([email protected])
#
# --
#
#   
#


module IRB
  class LoadAbort < Exception;end

  module IrbLoader
    @RCS_ID='-$Id: loader.rb 11708 2007-02-12 23:01:19Z shyouhei $-'

    alias ruby_load load
    alias ruby_require require

    def irb_load(fn, priv = nil)
      path = search_file_from_ruby_path(fn)
      raise LoadError, "No such file to load -- #{fn}" unless path

      load_file(path, priv)
    end

    def search_file_from_ruby_path(fn)
      if /^#{Regexp.quote(File::Separator)}/ =~ fn
    return fn if File.exist?(fn)
    return nil
      end

      for path in $:
    if File.exist?(f = File.join(path, fn))
      return f
    end
      end
      return nil
    end

    def source_file(path)
      irb.suspend_name(path, File.basename(path)) do
    irb.suspend_input_method(FileInputMethod.new(path)) do
      |back_io|
      irb.signal_status(:IN_LOAD) do 
        if back_io.kind_of?(FileInputMethod)
          irb.eval_input
        else
          begin
        irb.eval_input
          rescue LoadAbort
        print "load abort!!\n"
          end
        end
      end
    end
      end
    end

    def load_file(path, priv = nil)
      irb.suspend_name(path, File.basename(path)) do
    
    if priv
      ws = WorkSpace.new(Module.new)
    else
      ws = WorkSpace.new
    end
    irb.suspend_workspace(ws) do
      irb.suspend_input_method(FileInputMethod.new(path)) do
        |back_io|
        irb.signal_status(:IN_LOAD) do 
#         p irb.conf
          if back_io.kind_of?(FileInputMethod)
        irb.eval_input
          else
        begin
          irb.eval_input
        rescue LoadAbort
          print "load abort!!\n"
        end
          end
        end
      end
    end
      end
    end

    def old
      back_io = @io
      back_path = @irb_path
      back_name = @irb_name
      back_scanner = @irb.scanner
      begin
    @io = FileInputMethod.new(path)
    @irb_name = File.basename(path)
    @irb_path = path
    @irb.signal_status(:IN_LOAD) do
      if back_io.kind_of?(FileInputMethod)
        @irb.eval_input
      else
        begin
          @irb.eval_input
        rescue LoadAbort
          print "load abort!!\n"
        end
      end
    end
      ensure
    @io = back_io
    @irb_name = back_name
    @irb_path = back_path
    @irb.scanner = back_scanner
      end
    end
  end
end