Christos Zisopoulos christos

## README.md

      
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                christos
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              Created
              June 15, 2012 13:26
            
              
                RubyMotion runtime freeze on syntax error in an `each` block, when called from a callback
              
          
    Hello everyone,
I've already asked on IRC and no one seemed to have an idea why the following is happening:
I can consistently get the RubyMotion runtime and the device to freeze when running this simple code (https://gist.github.com/2936457) with rake device and then hitting the Cancel button on the UIImagePicker. I am guessing this is related to callbacks in general, but I couldn't come up with a simpler example.
As you can see, the UIImagePicker callback method simply uses each to iterate over an array of strings, but as soon as it hits the syntax error on line 28 (putd) it stops. No exception in the logs, nothing. The process has to be killed to exit it.
Any ideas? Am I supposed to release/retain something? I know blocks are a bit tricky but I can't figure out what could possibly be causing the freeze, even if it was a NULL pointer or a missing reference

  
## gist:2037118
The original URL:

https://www.icloud.com/journal/#p=02&t=CAEQARoQIx7SyDPX1G1Fn4_lEqnNoA==&f=/82J93X7T25~com~apple~mobileiphoto/Public/46D1774C-ECAE-4DA5-8EEB-65793AB2EF9A.jb/index.json

...when shortened to

https://t.co/dKSWfYh

...which incorrectly expands to:

## gist:1716942

curl -OL http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
curl -OL http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem

gem install linecache19-0.5.13.gem

gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=$rvm_path/src/`rvm current`

rm ruby-debug-base19-0.11.26.gem linecache19-0.5.13.gem

## monit.conf
# This is an event.d (upstart) script to keep monit running.
# To install disable the old way of doing things:
#
#   /etc/init.d/monit stop && update-rc.d -f monit remove
#
# then put this script here:
#
#   /etc/init/monit.conf
#
# and reload upstart configuration:

## ssh-copy-id
curl "https://raw.github.com/gist/1386087/2f757de4b575a632acc3d59c1224e2134ef7973c/ssh-copy-id" -o ~/bin/ssh-copy-id
chmod +x ~/bin/ssh-copy-id

## profile_options_for_select.rb
require 'rubygems'
require 'thread'
require 'rails/all'
require 'benchmark'

include ActionView::Helpers::FormOptionsHelper

puts "Using #{`ruby -v`}"

@choices = 700.times.collect { [(0...50).map{ ('a'..'z').to_a[rand(26)] }.join, rand(10000)] }

## jazzfonica.rb
#!/usr/bin/env ruby
# jazzfonica.rb for Mac OS X
# Scans the visible networks for JAZZTEL_XXXX or WLAN_XXXX and calculates the password
# Ported from PHP example at http://kz.ath.cx/wlan/codigo.txt
# Download and execute with ruby (e.g. ruby jazzfonica.rb) from a Terminal

require 'digest/md5'

messages = []
unless !File.exists?('/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport')

## rbeautify.rb
#!/usr/bin/ruby -w


=begin
/***************************************************************************
 *   Copyright (C) 2008, Paul Lutus                                        *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *

## cache_with_comment.rb
module ActionController
  module Caching
    module Fragments

      def read_fragment_with_comment(name, options)
        fragment = read_fragment_without_comment(name, options)
        fragment && "\n<!-- cache-hit: #{name} -->\n#{fragment}\n<!-- /cache-hit: #{name} -->\n" || nil
      end
      alias_method_chain :read_fragment, :comment

## etc-init-d-monit
#! /bin/sh
#
# skeleton  example file to build /etc/init.d/ scripts.
#       This file should be used to construct scripts for /etc/init.d.
#
#       Written by Miquel van Smoorenburg <miquels@cistron.nl>.
#       Modified for Debian
#       by Ian Murdock <imurdock@gnu.ai.mit.edu>.
#
# Version:  @(#)skeleton  1.9  26-Feb-2001  miquels@cistron.nl
	The original URL:

	https://www.icloud.com/journal/#p=02&t=CAEQARoQIx7SyDPX1G1Fn4_lEqnNoA==&f=/82J93X7T25~com~apple~mobileiphoto/Public/46D1774C-ECAE-4DA5-8EEB-65793AB2EF9A.jb/index.json

	...when shortened to

	https://t.co/dKSWfYh

	...which incorrectly expands to:

	curl -OL http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
	curl -OL http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem

	gem install linecache19-0.5.13.gem

	gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=$rvm_path/src/`rvm current`

	rm ruby-debug-base19-0.11.26.gem linecache19-0.5.13.gem
	# This is an event.d (upstart) script to keep monit running.
	# To install disable the old way of doing things:
	#
	# /etc/init.d/monit stop && update-rc.d -f monit remove
	#
	# then put this script here:
	#
	# /etc/init/monit.conf
	#
	# and reload upstart configuration:
	curl "https://raw.github.com/gist/1386087/2f757de4b575a632acc3d59c1224e2134ef7973c/ssh-copy-id" -o ~/bin/ssh-copy-id
	chmod +x ~/bin/ssh-copy-id
	require 'rubygems'
	require 'thread'
	require 'rails/all'
	require 'benchmark'

	include ActionView::Helpers::FormOptionsHelper

	puts "Using #{`ruby -v`}"

	@choices = 700.times.collect { [(0...50).map{ ('a'..'z').to_a[rand(26)] }.join, rand(10000)] }
	#!/usr/bin/env ruby
	# jazzfonica.rb for Mac OS X
	# Scans the visible networks for JAZZTEL_XXXX or WLAN_XXXX and calculates the password
	# Ported from PHP example at http://kz.ath.cx/wlan/codigo.txt
	# Download and execute with ruby (e.g. ruby jazzfonica.rb) from a Terminal

	require 'digest/md5'

	messages = []
	unless !File.exists?('/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport')
	#!/usr/bin/ruby -w


	=begin
	/***************************************************************************
	* Copyright (C) 2008, Paul Lutus *
	* *
	* This program is free software; you can redistribute it and/or modify *
	* it under the terms of the GNU General Public License as published by *
	* the Free Software Foundation; either version 2 of the License, or *
	module ActionController
	module Caching
	module Fragments

	def read_fragment_with_comment(name, options)
	fragment = read_fragment_without_comment(name, options)
	fragment && "\n<!-- cache-hit: #{name} -->\n#{fragment}\n<!-- /cache-hit: #{name} -->\n" \|\| nil
	end
	alias_method_chain :read_fragment, :comment
	#! /bin/sh
	#
	# skeleton example file to build /etc/init.d/ scripts.
	# This file should be used to construct scripts for /etc/init.d.
	#
	# Written by Miquel van Smoorenburg <miquels@cistron.nl>.
	# Modified for Debian
	# by Ian Murdock <imurdock@gnu.ai.mit.edu>.
	#
	# Version: @(#)skeleton 1.9 26-Feb-2001 miquels@cistron.nl