nealrichardson commented on code in PR #14281:
URL: https://github.com/apache/arrow/pull/14281#discussion_r991386125
##########
r/R/dplyr-across.R:
##########
@@ -58,9 +58,38 @@ expand_across <- function(.data, quos_in) {
} else {
quos_out <- append(quos_out, quo_in)
}
+
+ if (is_call(quo_expr, "if_any")) {
+ quos_out <- append(list(), purrr::reduce(quos_out, combine_if, op = "|",
envir = quo_get_env(quos_out[[1]])))
+ }
+
+ if (is_call(quo_expr, "if_all")) {
+ quos_out <- append(list(), purrr::reduce(quos_out, combine_if, op = "&",
envir = quo_get_env(quos_out[[1]])))
+ }
}
- quos_out
+ new_quosures(quos_out)
+}
+
+# takes multiple expressions and combines them with & or |
+combine_if <- function(lhs, rhs, op, envir) {
+ expr_text <- paste(
+ expr_text(quo_get_expr(lhs)),
+ expr_text(quo_get_expr(rhs)),
+ sep = paste0(" ", op, " ")
+ )
+
+ expr <- parse_expr(expr_text)
+
+ new_quosure(expr, envir)
+}
+
+if_any <- function(.cols = everything(), .fns = NULL, ..., .names = NULL) {
+
+}
+
+if_all <- function(.cols = everything(), .fns = NULL, ..., .names = NULL) {
+
Review Comment:
These aren't needed right?
```suggestion
```
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