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Using external Cast types
Nat Wilson edited this page Jul 3, 2014
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1 revision
Functions and methods within narwhal can interact with externally-defined Cast-like and CastCollection-like objects that implement the correct interface. In order for external code to be recognized by narwhal, it must be registered with the narwhal.AbstractCast
/narwhal.AbstractCastCollection
meta-classes.
import narwhal
class MyCustomCast(object):
[...]
class MyCustomCastCollection(object):
[...]
narwhal.AbstractCast.register(MyCustomCast)
narwhal.AbstractCastCollection.register(MyCustomCastCollection)
This mechanism permits narwhal to interact with a wider variety of external code.