Gecko [ goons4good.org ]

Name	Size	Permission	Date
cgi	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
digest	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
drb	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
fiddle	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
io	[ DIR ]	drwxr-xr-x	2023-07-26 10:21
irb	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
json	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
matrix	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
net	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
openssl	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
optparse	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
psych	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
racc	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rake	[ DIR ]	drwxr-xr-x	2023-08-27 00:27
rbconfig	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rdoc	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rexml	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rinda	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
ripper	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rss	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
rubygems	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
shell	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
syslog	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
unicode_normalize	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
uri	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
webrick	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
x86_64-linux	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
xmlrpc	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
yaml	[ DIR ]	drwxr-xr-x	2023-08-27 00:26
English.rb	6.42 KB	-rw-r--r--	2014-05-31 15:54
abbrev.rb	3.46 KB	-rw-r--r--	2014-07-11 04:16
base64.rb	2.63 KB	-rw-r--r--	2013-05-18 23:10
benchmark.rb	17.73 KB	-rw-r--r--	2014-09-11 04:09
cgi.rb	9.77 KB	-rw-r--r--	2014-08-07 02:14
cmath.rb	9.34 KB	-rw-r--r--	2015-07-03 15:31
csv.rb	82.45 KB	-rw-r--r--	2014-11-03 22:21
date.rb	980 B	-rw-r--r--	2023-07-26 10:21
debug.rb	29.08 KB	-rw-r--r--	2013-12-14 09:48
delegate.rb	10.71 KB	-rw-r--r--	2014-07-26 13:11
digest.rb	2.79 KB	-rw-r--r--	2023-07-26 10:21
drb.rb	19 B	-rw-r--r--	2009-10-02 06:45
e2mmap.rb	3.77 KB	-rw-r--r--	2014-08-24 03:16
erb.rb	26.35 KB	-rw-r--r--	2014-12-12 05:48
expect.rb	2.14 KB	-rw-r--r--	2023-07-26 10:21
fiddle.rb	1.65 KB	-rw-r--r--	2023-07-26 10:21
fileutils.rb	47.46 KB	-rw-r--r--	2017-03-25 14:24
find.rb	2.48 KB	-rw-r--r--	2014-10-13 03:34
forwardable.rb	8.22 KB	-rw-r--r--	2017-03-25 10:43
getoptlong.rb	15.38 KB	-rw-r--r--	2013-05-19 10:50
ipaddr.rb	17.06 KB	-rw-r--r--	2015-11-24 10:49
irb.rb	20.03 KB	-rw-r--r--	2016-03-28 11:07
json.rb	1.74 KB	-rw-r--r--	2023-07-26 10:21
kconv.rb	5.74 KB	-rw-r--r--	2023-07-26 10:21
logger.rb	20.33 KB	-rw-r--r--	2016-10-27 03:47
mathn.rb	3.84 KB	-rw-r--r--	2014-08-26 08:07
matrix.rb	53.14 KB	-rw-r--r--	2014-11-26 20:03
mkmf.rb	82.59 KB	-rw-r--r--	2023-07-26 10:18
monitor.rb	6.93 KB	-rw-r--r--	2012-11-16 11:55
mutex_m.rb	2 KB	-rw-r--r--	2013-02-19 21:51
observer.rb	5.8 KB	-rw-r--r--	2014-08-27 08:21
open-uri.rb	24.58 KB	-rw-r--r--	2014-12-24 04:11
open3.rb	20.55 KB	-rw-r--r--	2014-11-03 22:09
openssl.rb	528 B	-rw-r--r--	2023-07-26 10:21
optionparser.rb	28 B	-rw-r--r--	2014-05-25 23:25
optparse.rb	52.05 KB	-rw-r--r--	2017-03-25 14:28
ostruct.rb	8.66 KB	-rw-r--r--	2017-03-25 14:35
pathname.rb	15.58 KB	-rw-r--r--	2023-07-26 10:21
pp.rb	14.16 KB	-rw-r--r--	2014-12-05 14:35
prettyprint.rb	15.85 KB	-rw-r--r--	2014-08-21 22:38
prime.rb	13.11 KB	-rw-r--r--	2014-12-10 15:38
profile.rb	205 B	-rw-r--r--	2009-10-02 06:45
profiler.rb	4.51 KB	-rw-r--r--	2013-05-19 19:04
pstore.rb	14.55 KB	-rw-r--r--	2014-07-23 15:31
psych.rb	14.88 KB	-rw-r--r--	2023-07-26 10:21
rake.rb	2.23 KB	-rw-r--r--	2014-12-05 19:22
rdoc.rb	4.96 KB	-rw-r--r--	2014-12-06 20:22
resolv-replace.rb	1.73 KB	-rw-r--r--	2013-03-11 09:47
resolv.rb	72.06 KB	-rw-r--r--	2015-05-19 13:05
ripper.rb	2.53 KB	-rw-r--r--	2023-07-26 10:21
rss.rb	2.84 KB	-rw-r--r--	2011-05-11 06:22
rubygems.rb	31.85 KB	-rw-r--r--	2018-02-16 11:27
scanf.rb	23.54 KB	-rw-r--r--	2014-02-14 20:33
securerandom.rb	9.2 KB	-rw-r--r--	2016-04-22 05:17
set.rb	19.15 KB	-rw-r--r--	2014-08-06 07:28
shell.rb	11.3 KB	-rw-r--r--	2014-08-24 03:16
shellwords.rb	5.96 KB	-rw-r--r--	2014-09-05 06:00
singleton.rb	4.02 KB	-rw-r--r--	2011-05-18 10:09
socket.rb	25.6 KB	-rw-r--r--	2023-07-26 10:21
sync.rb	7.25 KB	-rw-r--r--	2013-05-18 23:10
tempfile.rb	11.11 KB	-rw-r--r--	2014-09-20 21:40
thwait.rb	3.31 KB	-rw-r--r--	2014-08-27 08:10
time.rb	22.25 KB	-rw-r--r--	2015-08-03 15:11
timeout.rb	3.64 KB	-rw-r--r--	2015-08-10 13:08
tmpdir.rb	4.13 KB	-rw-r--r--	2018-03-28 10:34
tracer.rb	6.4 KB	-rw-r--r--	2013-07-18 09:50
tsort.rb	14.27 KB	-rw-r--r--	2014-11-26 05:46
ubygems.rb	268 B	-rw-r--r--	2009-10-02 06:45
un.rb	8.87 KB	-rw-r--r--	2013-07-05 09:43
unicode_normalize.rb	3.16 KB	-rw-r--r--	2015-01-15 21:06
uri.rb	3.07 KB	-rw-r--r--	2014-11-02 19:33
weakref.rb	2.92 KB	-rw-r--r--	2014-07-26 13:12
webrick.rb	6.69 KB	-rw-r--r--	2013-10-05 19:39
xmlrpc.rb	8.49 KB	-rw-r--r--	2013-12-11 22:09
yaml.rb	1.7 KB	-rw-r--r--	2014-06-25 22:52

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