Introduce internal interface for ValuePropBackend
#201
+256
−107
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Since we currently "bless" the reference and onnxruntime implementations as the only way to propagate value internally, this PR refactors a bit the internals to allow a better interface for "custom" execution providers(i.e. @cbourjau rust runtime, onnx-mlir...).
Consult the tests for a POC which could also be used to register custom opsets as well.
An additional internal change is related to the
PropDict
type as previously it was too wide and didn't capture the correct semantics of the returned values from onnxruntime. As per the definition of from_ref_value we can see that the returned feed is of typedict[str, PropValue]
which makes more sense to model around.This exposed a bug in the function value inference which was unnoticed and is now fixed.
Checklist
CHANGELOG.rst
entry