Comments (4)
I had initially considered this, but the shortcoming is that it's only one-way -- you can only use this to store a custom object in ASDF. So you ultimately to have something "off the side" (i.e. not on objects) that can be used to unserialize the objects.
This is documented here: http://pyasdf.readthedocs.org/en/latest/pyasdf/extensions.html
While there's probably some room for improvement, I think it's superior to using a special member because it wraps the serialization/deserialization in a single class.
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Ok, sounds good!
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I think there's more that goes into storing arbitrary objects in ASDF too. For example you need support in the schema and the like. That could be declared in an object too, but I think in practice Mike's approach is better.
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The other important point I forgot to mention is that doing things "off to the side" like this lets us handle objects we don't control, such as Numpy arrays. (i.e. we can support them in ASDF without submitting patches to Numpy).
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Related Issues (20)
- asdf odd handling of `namedtuple` that prevents implementing a `Converter`
- ASDF swallows warnings raised by converters HOT 6
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- Tracking `sunpy` 6.0 and ASDF 1.6.0 HOT 1
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