From: Tim Hunter <TimHunter@...>
Date: 2008-12-16T21:14:18+09:00
Subject: Re: marshal_load, marshal_dump

Eric Hodel wrote:
> On Dec 15, 2008, at 17:20 PM, Tim Hunter wrote:
>> Eric Hodel wrote:
>>> On Dec 13, 2008, at 14:36 PM, Tim Hunter wrote:
>>>> Currently RMagick uses the old _dump and _load methods to 
>>>> marshal/unmarshal images. I'd like to start using the new 
>>>> marshal_load and marshal_dump methods. What is the impact of 
>>>> switching? Can I just replace _dump and _load with marshal_dump and 
>>>> marshal_load? Suppose I have an image that was dumped using an old 
>>>> version of RMagick. How do I support loading it?
>>> Note that _dump/_load occurs before allocate and 
>>> marshal_dump/marshal_load occurs after.  In some instances this is an 
>>> important distinction.
>>
>> Absolutely. I wish I could find some examples of custom 
>> marshal_dump/marshal_load implementations. Searching thru the 
>> 1.8.7/1.9.1 sources didn't turn up anything illuminating.
> 
> Look in RubyGems.  Gem::Specification, Gem::Version and Gem::Requirement 
> have custom marshal methods.
> 
> 

Excellent! Thanks for the pointer.

-- 
RMagick: http://rmagick.rubyforge.org/