romainfrancois opened a new pull request #8256:
URL: https://github.com/apache/arrow/pull/8256
call_function() internally unbox to the right R6 class.
This probably needs some more work, e.g. not sure how to deal with this
function:
```r
.guess_result_class <- function(arg) {
# HACK HACK HACK delete this when call_function returns an ArrowObject
itself
if (inherits(arg, "ArrowObject")) {
return(class(arg)[1])
} else if (inherits(arg, "array_expression")) {
return(arg$result_class)
} else {
stop("Not implemented")
}
}
```
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