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ðŸ“„ change-ws.rb(1.14 KB)
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ðŸ“„ math-mode.rb(625 B)
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ðŸ“„ workspaces.rb(978 B)

Editing: multi-irb.rb

#
#   irb/multi-irb.rb - multiple irb module
#   	$Release Version: 0.9.5$
#   	$Revision: 25814 $
#   	$Date: 2009-11-17 15:51:29 +0900 (Tue, 17 Nov 2009) $
#   	by Keiju ISHITSUKA(keiju@ruby-lang.org)
#
# --
#
#   
#
IRB.fail CantShiftToMultiIrbMode unless defined?(Thread)
require "thread"

module IRB
  # job management class
  class JobManager
    @RCS_ID='-$Id: multi-irb.rb 25814 2009-11-17 06:51:29Z shyouhei $-'

def initialize
      # @jobs = [[thread, irb],...]
      @jobs = []
      @current_job = nil
    end

attr_accessor :current_job

def n_jobs
      @jobs.size
    end

def thread(key)
      th, irb = search(key)
      th
    end

def irb(key)
      th, irb = search(key)
      irb
    end

def main_thread
      @jobs[0][0]
    end

def main_irb
      @jobs[0][1]
    end

def insert(irb)
      @jobs.push [Thread.current, irb]
    end

def switch(key)
      th, irb = search(key)
      IRB.fail IrbAlreadyDead unless th.alive?
      IRB.fail IrbSwitchedToCurrentThread if th == Thread.current
      @current_job = irb
      th.run
      Thread.stop
      @current_job = irb(Thread.current)
    end

def kill(*keys)
      for key in keys
	th, irb = search(key)
	IRB.fail IrbAlreadyDead unless th.alive?
	th.exit
      end
    end

def search(key)
      job = case key
      when Integer
	@jobs[key]
      when Irb
	@jobs.find{|k, v| v.equal?(key)}
      when Thread
	@jobs.assoc(key)
      else
	@jobs.find{|k, v| v.context.main.equal?(key)}
      end
      IRB.fail NoSuchJob, key if job.nil?
      job
    end

def delete(key)
      case key
      when Integer
	IRB.fail NoSuchJob, key unless @jobs[key]
	@jobs[key] = nil
      else
	catch(:EXISTS) do
	  @jobs.each_index do
	    |i|
	    if @jobs[i] and (@jobs[i][0] == key ||
			     @jobs[i][1] == key ||
			     @jobs[i][1].context.main.equal?(key))
	      @jobs[i] = nil
	      throw :EXISTS
	    end
	  end
	  IRB.fail NoSuchJob, key
	end
      end
      until assoc = @jobs.pop; end unless @jobs.empty?
      @jobs.push assoc
    end

def inspect
      ary = []
      @jobs.each_index do
	|i|
	th, irb = @jobs[i]
	next if th.nil?

if th.alive?
	  if th.stop?
	    t_status = "stop"
	  else
	    t_status = "running"
	  end
	else
	  t_status = "exited"
	end
	ary.push format("#%d->%s on %s (%s: %s)",
			i, 
			irb.context.irb_name, 
			irb.context.main,
			th,
			t_status)
      end
      ary.join("\n")
    end
  end

@JobManager = JobManager.new

def IRB.JobManager
    @JobManager
  end

def IRB.CurrentContext
    IRB.JobManager.irb(Thread.current).context
  end

# invoke multi-irb 
  def IRB.irb(file = nil, *main)
    workspace = WorkSpace.new(*main)
    parent_thread = Thread.current
    Thread.start do
      begin
	irb = Irb.new(workspace, file)
      rescue 
	print "Subirb can't start with context(self): ", workspace.main.inspect, "\n"
	print "return to main irb\n"
	Thread.pass
	Thread.main.wakeup
	Thread.exit
      end
      @CONF[:IRB_RC].call(irb.context) if @CONF[:IRB_RC]
      @JobManager.insert(irb)
      @JobManager.current_job = irb
      begin
	system_exit = false
	catch(:IRB_EXIT) do
	  irb.eval_input
	end
      rescue SystemExit
	system_exit = true
	raise
	#fail
      ensure
	unless system_exit
	  @JobManager.delete(irb)
	  if parent_thread.alive?
	    @JobManager.current_job = @JobManager.irb(parent_thread)
	    parent_thread.run
	  else
	    @JobManager.current_job = @JobManager.main_irb
	    @JobManager.main_thread.run
	  end
	end
      end
    end
    Thread.stop
    @JobManager.current_job = @JobManager.irb(Thread.current)
  end

#   class Context
#     def set_last_value(value)
#       @last_value = value
#       @workspace.evaluate "_ = IRB.JobManager.irb(Thread.current).context.last_value"
#       if @eval_history #and !@__.equal?(@last_value)
# 	@eval_history_values.push @line_no, @last_value
# 	@workspace.evaluate "__ = IRB.JobManager.irb(Thread.current).context.instance_eval{@eval_history_values}"
#       end
#       @last_value
#     end
#   end

#  module ExtendCommand
#     def irb_context
#       IRB.JobManager.irb(Thread.current).context
#     end
# #    alias conf irb_context
#   end

@CONF[:SINGLE_IRB_MODE] = false
  @JobManager.insert(@CONF[:MAIN_CONTEXT].irb)
  @JobManager.current_job = @CONF[:MAIN_CONTEXT].irb

class Irb
    def signal_handle
      unless @context.ignore_sigint?
	print "\nabort!!\n" if @context.verbose?
	exit
      end

case @signal_status
      when :IN_INPUT
	print "^C\n"
	IRB.JobManager.thread(self).raise RubyLex::TerminateLineInput
      when :IN_EVAL
	IRB.irb_abort(self)
      when :IN_LOAD
	IRB.irb_abort(self, LoadAbort)
      when :IN_IRB
	# ignore
      else
	# ignore other cases as well
      end
    end
  end

trap("SIGINT") do
    @JobManager.current_job.signal_handle
    Thread.stop
  end

end

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Editing: multi-irb.rb

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