ianmcook commented on a change in pull request #9952:
URL: https://github.com/apache/arrow/pull/9952#discussion_r610936871
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File path: r/R/arrow-datum.R
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@@ -22,6 +22,7 @@
ArrowDatum <- R6Class("ArrowDatum", inherit = ArrowObject,
public = list(
cast = function(target_type, safe = TRUE, ...) {
+ target_type <- unmask_type_fun(enexpr(target_type)) %||% target_type
Review comment:
My first attempt to solve this with quosures was unsuccessful for two
reasons:
- There are checks for the nullity of `type` in the code would need to all
be rewritten to work with quosures, and simply using `quo_is_null()` is not
sufficient for this.
- Some of the functions that defuse `type` call other functions that defuse
`type`, so we end up with quosures of quosures. rlang does not appear to have
facilities for easily solving this problem. See
https://community.rstudio.com/t/how-to-avoid-creating-quosures-of-quosures/101420
I will remove all the masking-prevention code for now and we can revisit in
ARROW-12322.
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