romainfrancois commented on pull request #11805:
URL: https://github.com/apache/arrow/pull/11805#issuecomment-985367918
Perhaps we could have something like this on the R side:
```r
Array$create <- function(x, type = NULL) {
if (!is.null(type)) {
type <- as_type(type)
}
if (inherits(x, "Scalar")) {
out <- x$as_array()
if (!is.null(type)) {
out <- out$cast(type)
}
return(out)
}
tryCatch(
vec_to_Array(x, type),
error = function(cnd) {
if (!is.null(type)) {
# try again and then cast
vec_to_Array(x, NULL)$cast(type)
} else {
signalCondition(cnd)
}
}
)
}
```
So that:
``` r
library(arrow, warn.conflicts = FALSE)
#> See arrow_info() for available features
Array$create(c(1, 2), type = decimal(4, 3))
#> Array
#> <decimal128(4, 3)>
#> [
#> 1.000,
#> 2.000
#> ]
```
<sup>Created on 2021-12-03 by the [reprex
package](https://reprex.tidyverse.org) (v2.0.1.9000)</sup>
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