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Posted to jira@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2021/06/02 21:09:00 UTC

[jira] [Created] (ARROW-12940) [R] Expose C interface as R6 methods

Neal Richardson created ARROW-12940:
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             Summary: [R] Expose C interface as R6 methods
                 Key: ARROW-12940
                 URL: https://issues.apache.org/jira/browse/ARROW-12940
             Project: Apache Arrow
          Issue Type: New Feature
          Components: R
            Reporter: Neal Richardson
            Assignee: Jonathan Keane
             Fix For: 5.0.0


Similar to pyarrow's export_to_c and import_from_c methods. We have c++ wrappers like ImportRecordBatch but they aren't exported from the package namespace, so attaching them to the R6 objects would provide a way to do that. 

Lifecycle management of the C pointers they read/write to (allocate/delete) is left outside of these methods (as it is in the non-exported wrappers today).

export_to_c should be a method on an object. import_from_c should be a "class method" like {{$create()}}.

Once this is done, we should inform duckdb of this so that they can remove their {{getFromNamespace()}} workaround.



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