Adding a data pointer for calling a C function about abi-stable-node HOT 5 CLOSED

I implemented this as part of the refactoring of function callbacks that I did for property accessors.

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Fixed in the 6.2 branch with 67f4581

To be ported to other branches soon.

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@jjrv can you confirm that what was added satisfies your use case ?

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Specifically, this is supported via the new data parameter of napi_create_function(), and the new napi_get_cb_data() function to retrieve that data pointer from the callback info.

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Closing since the data parameter was added a while ago.

There is no direct support for finalization of the data pointer, but it can be accomplished by creating an external value (napi_create_external()) with the same data pointer, then attaching that as a property on the function.

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