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This commit was generated by cvs2svn to compensate for changes in r372,

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which included commits to RCS files with non-trunk default branches.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 1999-01-20 04:59:39 +00:00
parent 9c5b1986a3
commit 210367ec88
140 changed files with 25635 additions and 14037 deletions
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39
lib/weakref.rb
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@ -10,9 +10,10 @@
require "delegate"
class WeakRef<Delegater
class WeakRef<Delegator
Exception :RefError
class RefError<StandardError
end
ID_MAP = {}
ID_REV_MAP = {}
@ -31,26 +32,22 @@ class WeakRef<Delegater
def initialize(orig)
super
@id = orig.id
@__id = orig.__id__
ObjectSpace.call_finalizer orig
ID_MAP[@id] = self.id
ID_REV_MAP[self.id] = @id
ObjectSpace.call_finalizer self
ID_MAP[@__id] = self.__id__
ID_REV_MAP[self.id] = @__id
end
def __getobj__
unless ID_MAP[@id]
$@ = caller(1)
$! = RefError.new("Illegal Reference - probably recycled")
raise
unless ID_MAP[@__id]
raise RefError, "Illegal Reference - probably recycled", caller(2)
end
ObjectSpace.id2ref(@id)
# ObjectSpace.each_object do |obj|
# return obj if obj.id == @id
# end
ObjectSpace._id2ref(@__id)
end
def weakref_alive?
if ID_MAP[@id]
if ID_MAP[@__id]
true
else
false
@ -62,9 +59,11 @@ class WeakRef<Delegater
end
end
foo = Object.new
p foo.hash
foo = WeakRef.new(foo)
p foo.hash
ObjectSpace.garbage_collect
p foo.hash
if __FILE__ == $0
foo = Object.new
p foo.hash # original's hash value
foo = WeakRef.new(foo)
p foo.hash # should be same hash value
ObjectSpace.garbage_collect
p foo.hash # should raise exception (recycled)
end