Add support for Python 3.12's type aliases
#606
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This adds support for the new syntactic type aliases added in Python 3.12. A few examples: ``` type NullableStr = str | None type Pair[T] = tuple[T, T] type NullableStrPair = Pair[NullableStr] ``` msgspec now supports these type aliases, *except* in cases where the type alias is recursive. For example, the following type isn't supported: ``` type Link[T] = tuple[T, Link[T] | None] ``` The internal datastructure we use to store type information was not designed to handle recursive types like these; supporting them will require a larger refactor.
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This adds support for the new syntactic type aliases added in Python 3.12. A few examples:
msgspec now supports these type aliases, except in cases where the type alias is recursive. For example, the following type isn't supported:
The internal datastructure we use to store type information was not designed to handle recursive types like these; supporting them will require a larger refactor.
Fixes #579.