Gecko [ beriskala.com ]

Name	Size	Permission	Date
bigdecimal	[ DIR ]	drwxr-xr-x	2026-05-01 04:24
cgi	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
date	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
digest	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
dl	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
drb	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
fiddle	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
io	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
irb	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
json	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
matrix	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
minitest	[ DIR ]	drwxr-xr-x	2026-05-01 04:24
net	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
openssl	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
optparse	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
psych	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
racc	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rake	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rbconfig	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rdoc	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rexml	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rinda	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
ripper	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rss	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
rubygems	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
shell	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
syslog	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
test	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
tk	[ DIR ]	drwxr-xr-x	2026-05-01 04:23
tkextlib	[ DIR ]	drwxr-xr-x	2026-05-01 04:23
uri	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
webrick	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
x86_64-linux	[ DIR ]	drwxr-xr-x	2026-05-01 04:24
xmlrpc	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
yaml	[ DIR ]	drwxr-xr-x	2026-04-30 23:44
English.rb	6.44 KB	-rw-r--r--	2013-02-04 06:20
abbrev.rb	3.31 KB	-rw-r--r--	2013-02-21 21:05
base64.rb	2.63 KB	-rw-r--r--	2013-05-19 07:40
benchmark.rb	17.95 KB	-rw-r--r--	2013-09-20 20:35
cgi.rb	9.84 KB	-rw-r--r--	2013-07-18 18:20
cmath.rb	8.93 KB	-rw-r--r--	2015-07-03 13:42
complex.rb	380 B	-rw-r--r--	2009-08-16 20:04
csv.rb	81.68 KB	-rw-r--r--	2014-09-14 19:55
date.rb	946 B	-rw-r--r--	2023-07-26 17:52
debug.rb	29.08 KB	-rw-r--r--	2013-12-14 18:18
delegate.rb	11.13 KB	-rw-r--r--	2014-02-02 17:16
digest.rb	2.34 KB	-rw-r--r--	2023-07-26 17:52
dl.rb	280 B	-rw-r--r--	2023-07-26 17:52
drb.rb	19 B	-rw-r--r--	2009-10-02 14:15
e2mmap.rb	3.89 KB	-rw-r--r--	2013-12-17 14:50
erb.rb	26.07 KB	-rw-r--r--	2014-08-11 19:25
expect.rb	2.14 KB	-rw-r--r--	2023-07-26 17:52
fiddle.rb	1.65 KB	-rw-r--r--	2023-07-26 17:52
fileutils.rb	47.17 KB	-rw-r--r--	2015-04-28 09:46
find.rb	2.36 KB	-rw-r--r--	2014-10-15 19:01
forwardable.rb	7.86 KB	-rw-r--r--	2013-05-24 02:16
getoptlong.rb	15.38 KB	-rw-r--r--	2013-05-19 19:20
gserver.rb	8.86 KB	-rw-r--r--	2014-07-06 18:27
ipaddr.rb	17.05 KB	-rw-r--r--	2015-10-29 18:06
irb.rb	20.03 KB	-rw-r--r--	2016-03-25 12:52
json.rb	1.74 KB	-rw-r--r--	2023-07-26 17:52
kconv.rb	5.74 KB	-rw-r--r--	2023-07-26 17:52
logger.rb	22.37 KB	-rw-r--r--	2016-02-25 14:34
mathn.rb	6.52 KB	-rw-r--r--	2011-08-27 02:52
matrix.rb	45.43 KB	-rw-r--r--	2014-07-11 18:38
mkmf.rb	80.5 KB	-rw-r--r--	2023-07-26 17:49
monitor.rb	6.93 KB	-rw-r--r--	2012-11-16 20:25
multi-tk.rb	98.4 KB	-rw-r--r--	2023-07-26 17:52
mutex_m.rb	2 KB	-rw-r--r--	2013-02-20 06:21
observer.rb	5.81 KB	-rw-r--r--	2013-11-21 08:14
open-uri.rb	24.27 KB	-rw-r--r--	2014-02-22 12:24
open3.rb	20.37 KB	-rw-r--r--	2013-12-01 06:43
openssl.rb	528 B	-rw-r--r--	2023-07-26 17:52
optparse.rb	50.8 KB	-rw-r--r--	2013-11-28 11:04
ostruct.rb	7.7 KB	-rw-r--r--	2013-10-23 18:44
pathname.rb	15.3 KB	-rw-r--r--	2023-07-26 17:52
pp.rb	14.1 KB	-rw-r--r--	2013-10-22 12:59
prettyprint.rb	16.33 KB	-rw-r--r--	2013-05-19 07:40
prime.rb	13.2 KB	-rw-r--r--	2013-07-15 08:51
profile.rb	205 B	-rw-r--r--	2009-10-02 14:15
profiler.rb	4.51 KB	-rw-r--r--	2013-05-20 03:34
pstore.rb	14.85 KB	-rw-r--r--	2012-11-11 07:53
psych.rb	14.88 KB	-rw-r--r--	2023-07-26 17:52
rake.rb	2.12 KB	-rw-r--r--	2013-10-12 01:05
rational.rb	308 B	-rw-r--r--	2009-09-24 04:12
rdoc.rb	4.92 KB	-rw-r--r--	2013-12-22 13:55
remote-tk.rb	14.11 KB	-rw-r--r--	2023-07-26 17:52
resolv-replace.rb	1.73 KB	-rw-r--r--	2013-03-11 17:17
resolv.rb	72.31 KB	-rw-r--r--	2015-05-13 10:03
ripper.rb	2.53 KB	-rw-r--r--	2023-07-26 17:52
rss.rb	2.84 KB	-rw-r--r--	2011-05-11 14:52
rubygems.rb	30.97 KB	-rw-r--r--	2023-07-26 17:49
scanf.rb	23.54 KB	-rw-r--r--	2013-12-14 06:25
securerandom.rb	8.49 KB	-rw-r--r--	2013-11-07 21:34
set.rb	18.7 KB	-rw-r--r--	2013-11-23 03:20
shell.rb	10.3 KB	-rw-r--r--	2013-05-19 07:40
shellwords.rb	5.94 KB	-rw-r--r--	2013-12-14 21:56
singleton.rb	4.02 KB	-rw-r--r--	2011-05-18 18:39
socket.rb	25.6 KB	-rw-r--r--	2023-07-26 17:52
sync.rb	7.25 KB	-rw-r--r--	2013-05-19 07:40
tcltk.rb	10.06 KB	-rw-r--r--	2023-07-26 17:52
tempfile.rb	11.4 KB	-rw-r--r--	2013-11-21 12:58
thwait.rb	3.38 KB	-rw-r--r--	2013-11-07 20:32
time.rb	21.32 KB	-rw-r--r--	2015-08-17 12:11
timeout.rb	3.7 KB	-rw-r--r--	2015-08-17 12:25
tk.rb	163.72 KB	-rw-r--r--	2023-07-26 17:52
tkafter.rb	57 B	-rw-r--r--	2023-07-26 17:52
tkbgerror.rb	63 B	-rw-r--r--	2023-07-26 17:52
tkcanvas.rb	60 B	-rw-r--r--	2023-07-26 17:52
tkclass.rb	950 B	-rw-r--r--	2023-07-26 17:52
tkconsole.rb	63 B	-rw-r--r--	2023-07-26 17:52
tkdialog.rb	60 B	-rw-r--r--	2023-07-26 17:52
tkentry.rb	57 B	-rw-r--r--	2023-07-26 17:52
tkfont.rb	54 B	-rw-r--r--	2023-07-26 17:52
tkmacpkg.rb	60 B	-rw-r--r--	2023-07-26 17:52
tkmenubar.rb	63 B	-rw-r--r--	2023-07-26 17:52
tkmngfocus.rb	66 B	-rw-r--r--	2023-07-26 17:52
tkpalette.rb	63 B	-rw-r--r--	2023-07-26 17:52
tkscrollbox.rb	69 B	-rw-r--r--	2023-07-26 17:52
tktext.rb	54 B	-rw-r--r--	2023-07-26 17:52
tkvirtevent.rb	69 B	-rw-r--r--	2023-07-26 17:52
tkwinpkg.rb	60 B	-rw-r--r--	2023-07-26 17:52
tmpdir.rb	4.15 KB	-rw-r--r--	2013-05-19 07:40
tracer.rb	6.4 KB	-rw-r--r--	2013-07-18 18:20
tsort.rb	14.14 KB	-rw-r--r--	2013-10-17 19:29
ubygems.rb	268 B	-rw-r--r--	2009-10-02 14:15
un.rb	8.87 KB	-rw-r--r--	2013-07-05 18:13
uri.rb	3.07 KB	-rw-r--r--	2011-05-14 00:33
weakref.rb	3.23 KB	-rw-r--r--	2013-11-10 02:12
webrick.rb	6.69 KB	-rw-r--r--	2013-10-06 03:09
xmlrpc.rb	8.49 KB	-rw-r--r--	2013-12-12 06:39
yaml.rb	2.31 KB	-rw-r--r--	2013-08-12 08:19

Rename

require "delegate"

# Weak Reference class that allows a referenced object to be
# garbage-collected.
#
# A WeakRef may be used exactly like the object it references.
#
# Usage:
#
#   foo = Object.new            # create a new object instance
#   p foo.to_s                  # original's class
#   foo = WeakRef.new(foo)      # reassign foo with WeakRef instance
#   p foo.to_s                  # should be same class
#   GC.start                    # start the garbage collector
#   p foo.to_s                  # should raise exception (recycled)
#
# == Example
#
# With help from WeakRef, we can implement our own rudimentary WeakHash class.
#
# We will call it WeakHash, since it's really just a Hash except all of it's
# keys and values can be garbage collected.
#
#     require 'weakref'
#
#     class WeakHash < Hash
#       def []= key, obj
#         super WeakRef.new(key), WeakRef.new(obj)
#       end
#     end
#
# This is just a simple implementation, we've opened the Hash class and changed
# Hash#store to create a new WeakRef object with +key+ and +obj+ parameters
# before passing them as our key-value pair to the hash.
#
# With this you will have to limit your self to String keys, otherwise you
# will get an ArgumentError because WeakRef cannot create a finalizer for a
# Symbol. Symbols are immutable and cannot be garbage collected.
#
# Let's see it in action:
#
#   omg = "lol"
#   c = WeakHash.new
#   c['foo'] = "bar"
#   c['baz'] = Object.new
#   c['qux'] = omg
#   puts c.inspect
#   #=> {"foo"=>"bar", "baz"=>#<Object:0x007f4ddfc6cb48>, "qux"=>"lol"}
#
#   # Now run the garbage collector
#   GC.start
#   c['foo'] #=> nil
#   c['baz'] #=> nil
#   c['qux'] #=> nil
#   omg      #=> "lol"
#
#   puts c.inspect
#   #=> WeakRef::RefError: Invalid Reference - probably recycled
#
# You can see the local variable +omg+ stayed, although its reference in our
# hash object was garbage collected, along with the rest of the keys and
# values. Also, when we tried to inspect our hash, we got a WeakRef::RefError.
# This is because these objects were also garbage collected.

class WeakRef < Delegator

##
  # RefError is raised when a referenced object has been recycled by the
  # garbage collector

class RefError < StandardError
  end

@@__map = ::ObjectSpace::WeakMap.new

##
  # Creates a weak reference to +orig+
  #
  # Raises an ArgumentError if the given +orig+ is immutable, such as Symbol,
  # Fixnum, or Float.

def initialize(orig)
    case orig
    when true, false, nil
      @delegate_sd_obj = orig
    else
      @@__map[self] = orig
    end
    super
  end

def __getobj__ # :nodoc:
    @@__map[self] or defined?(@delegate_sd_obj) ? @delegate_sd_obj :
      Kernel::raise(RefError, "Invalid Reference - probably recycled", Kernel::caller(2))
  end

def __setobj__(obj) # :nodoc:
  end

##
  # Returns true if the referenced object is still alive.

def weakref_alive?
    @@__map.key?(self) or defined?(@delegate_sd_obj)
  end
end

if __FILE__ == $0
#  require 'thread'
  foo = Object.new
  p foo.to_s                    # original's class
  foo = WeakRef.new(foo)
  p foo.to_s                    # should be same class
  ObjectSpace.garbage_collect
  ObjectSpace.garbage_collect
  p foo.to_s                    # should raise exception (recycled)
end