Serializing persistent/functional data structures

Posted by Rob on Stack Overflow See other posts from Stack Overflow or by Rob
Published on 2010-03-20T18:03:01Z Indexed on 2010/03/20 18:21 UTC
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Filed under:

persistent

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functional-programming

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data-structures

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serialization

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language-agnostic

Persistent data structures depend on the sharing of structure for efficiency. For an example, see here.

How can I preserve the structure sharing when I serialize the data structures and write them to a file or database? If I just naively traverse the datastructures, I'll store the correct values, but I'll lose the structure sharing. I'd like to be able to save data-structures with shared components to a file, restore them, and still have most of the structure shared in the restored data.

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