1 files changed, 0 insertions, 87 deletions
diff --git a/lib/weakref.rb b/lib/weakref.rb
deleted file mode 100644
index 6861fde5f5..0000000000
--- a/lib/weakref.rb
+++ /dev/null
@@ -1,87 +0,0 @@
-# Weak Reference class that does not bother GCing.
-#
-# Usage:
-#   foo = Object.new
-#   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
-#   p foo.to_s			# should raise exception (recycled)
-
-require "delegate"
-
-class WeakRef<Delegator
-
-  class RefError<StandardError
-  end
-
-  ID_MAP =  {}		    # obj -> [ref,...]
-  ID_REV_MAP =  {}          # ref -> obj
-  @@final = lambda{|id|
-    __old_status = Thread.critical
-    Thread.critical = true
-    begin
-      rids = ID_MAP[id]
-      if rids
-	for rid in rids
-	  ID_REV_MAP[rid] = nil
-	end
-	ID_MAP[id] = nil
-      end
-      rid = ID_REV_MAP[id]
-      if rid
-	ID_REV_MAP[id] = nil
-	ID_MAP[rid].delete(id)
-	ID_MAP[rid] = nil if ID_MAP[rid].empty?
-      end
-    ensure
-      Thread.critical = __old_status
-    end
-  }
-
-  def initialize(orig)
-    super
-    @__id = orig.__id__
-    ObjectSpace.define_finalizer orig, @@final
-    ObjectSpace.define_finalizer self, @@final
-    __old_status = Thread.critical
-    begin
-      Thread.critical = true
-      ID_MAP[@__id] = [] unless ID_MAP[@__id]
-    ensure
-      Thread.critical = __old_status
-    end
-    ID_MAP[@__id].push self.__id__
-    ID_REV_MAP[self.id] = @__id
-  end
-
-  def __getobj__
-    unless ID_MAP[@__id]
-      raise RefError, "Illegal Reference - probably recycled", caller(2)
-    end
-    begin
-      ObjectSpace._id2ref(@__id)
-    rescue RangeError
-      raise RefError, "Illegal Reference - probably recycled", caller(2)
-    end
-  end
-
-  def weakref_alive?
-    if ID_MAP[@__id]
-      true
-    else
-      false
-    end
-  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
-  p foo.to_s			# should raise exception (recycled)
-end