[WASM] Propagate error messages from WASM into JavaScript.

[nsthorat]

When an error happens with construction an XNN Operator we should have the ability to propagate the error back into JavaScript.

We can do this with function pointer callbacks and a utility method to propagate the error.

See the section here "Call JavaScript functions from C/C++": https://emscripten.org/docs/porting/connecting_cpp_and_javascript/Interacting-with-code.html

Another idea is to return a special exit code from kernels (instead of the void return type), but we won't be able to pass a user-friendly message back up.

[gaikwadrahul8]

Hi, @nsthorat

Thank you for opening this issue for tracking purposes. Since this issue has been open for a long time, the code/debug information for this issue may not be relevant with the current state of the code base.

The TFJs team is constantly improving the framework by fixing bugs and adding new features. We suggest you try the latest TFJs version with the latest compatible hardware configuration which could potentially resolve the issue. We can keep the issue open if it is still relevant. Please confirm if we need to keep the issue open.

Thank you for your support and cooperation.

[gaikwadrahul8]

Hi, @nsthorat

We have not received any confirmation from you, so we are closing this issue now. If the issue is still relevant, please let us know, either we'll re-open this issue or please feel free to create new issue after trying with latest version of Tensorflow.js. Thank you!

[google-ml-butler]

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