Deep copy

[Jim Freeze]

Hi

I find that when I need to do a deep copy that I
usually just do the following:

x = Marshal.load(Marshal.dump(y)


Is there a more concise (possibly faster) method that
combines these two steps? If not, should we add one?

 

[Jason Creighton]

How about this ?

http://www.rubygarden.org/ruby?StandardClassExtensions/Object

<quoting from http://www.rubygarden.org/ruby?ObjectDeepClone>

class Object
def deep_clone
Marshal::load(Marshal.dump(self))
end
end

<end quote>

Jason Creighton

 

[Simon Strandgaard]

Hi

I find that when I need to do a deep copy that I
usually just do the following:

x = Marshal.load(Marshal.dump(y)


Is there a more concise (possibly faster) method that
combines these two steps? If not, should we add one?

How about this ?

http://www.rubygarden.org/ruby?StandardClassExtensions/Object

 

[Jim Freeze]

How about this ?

http://www.rubygarden.org/ruby?StandardClassExtensions/Object

Looks good. Has there been any discussion on this?

 

[Robert Klemme]

If I read the reports correctly, "Molly" the clone
had a ticking time bomb. (Maybe a thread with
a lifetime?)

Yeah, possibly.

robert

 

[Robert Klemme]

Next it will be Jim.freeze :=>

LOL

unless Jim.frozen?
Jim.post "comp.lang.ruby"
end

....

robert

 

[Martin DeMello]

LOL

unless Jim.frozen?
Jim.post "comp.lang.ruby"
end

But does comp.lang.ruby support postconditions?

martin

 

[Jim Freeze]

LOL

unless Jim.frozen?
Jim.post "comp.lang.ruby"
end

I'll have you know that the #freeze method is copyrighted by
myself. My lawyers inform me that every line of Ruby code written
that contains #freeze is subject to legal action or usage fees.
(You may want to use it sparingly in your code.)

However, #frozen is deemed an original work and is not legally
actionable.

 

[Robert Klemme]

I'll have you know that the #freeze method is copyrighted by
myself. My lawyers inform me that every line of Ruby code written
that contains #freeze is subject to legal action or usage fees.
(You may want to use it sparingly in your code.)

Ah, I've wondered why it is so seldomly used. Now that's clear (TM).

However, #frozen is deemed an original work and is not legally
actionable.

Ok, fine. Thank's for letting uns know.

"Never underestimate the power of a small tactical nuclear weapon."

Oops...

robert