Add a root NodeHandle type param to HugrView #398
Merged
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I'll say this closes #380.
We could go further and add a type parameter in
Hugr<T: NodeHandle>
, but that would probably be annoying to use and it'd break the pyo3 machinery.Instead, most things should be interfacing via
HugrView
. #284 / #293 will move the builder references to views instead, so we will be able to statically check the root type.