romainfrancois commented on a change in pull request #11751:
URL: https://github.com/apache/arrow/pull/11751#discussion_r754518629
##########
File path: r/R/type.R
##########
@@ -40,7 +40,8 @@ DataType <- R6Class("DataType",
fields = function() {
DataType__fields(self)
},
- export_to_c = function(ptr) ExportType(self, ptr)
+ export_to_c = function(ptr) ExportType(self, ptr),
+ code = function() call2("unknown_type", self$ToString())
Review comment:
So I added `arrow:::DayTimeInterval__initialize()` to make a
`DayTimeInterval` type, which don't have an R function yet. Bit artificial, but
then we get to be able to test what it looks like when we error, e.g.
``` r
library(arrow, warn.conflicts = FALSE)
#> See arrow_info() for available features
try_ <- function(code) tryCatch(code, error = function(cnd) print(cnd,
backtrace = FALSE))
try_(
arrow:::DayTimeInterval__initialize()$code()
)
#> <error/rlang_error>
#> Error in `code()`: Unsupported type: <day_time_interval>.
#> ℹ The arrow package currently has no function to make these.
try_(
schema(x = int32(), y = arrow:::DayTimeInterval__initialize())$code()
)
#> <error/rlang_error>
#> Error in `code()`:
#> Problem getting code for field "y".
#> Caused by error in `code()`:
#> Unsupported type: <day_time_interval>.
#> ℹ The arrow package currently has no function to make these.
try_(
struct(a = arrow:::DayTimeInterval__initialize())$code()
)
#> <error/rlang_error>
#> Error in `code()`:
#> Problem getting code for field "a".
#> Caused by error in `code()`:
#> Unsupported type: <day_time_interval>.
#> ℹ The arrow package currently has no function to make these.
try_(
list_of(arrow:::DayTimeInterval__initialize())$code()
)
#> <error/rlang_error>
#> Error in `code()`:
#> Problem getting code for list type.
#> Caused by error in `code()`:
#> Unsupported type: <day_time_interval>.
#> ℹ The arrow package currently has no function to make these.
try_(
large_list_of(arrow:::DayTimeInterval__initialize())$code()
)
#> <error/rlang_error>
#> Error in `code()`:
#> Problem getting code for large list type.
#> Caused by error in `code()`:
#> Unsupported type: <day_time_interval>.
#> ℹ The arrow package currently has no function to make these.
try_(
fixed_size_list_of(arrow:::DayTimeInterval__initialize(), list_size =
4L)$code()
)
#> <error/rlang_error>
#> Error in `code()`:
#> Problem getting code for fixed size list type.
#> Caused by error in `code()`:
#> Unsupported type: <day_time_interval>.
#> ℹ The arrow package currently has no function to make these.
try_(
schema(x = int32(), y = struct(a =
arrow:::DayTimeInterval__initialize()))$code()
)
#> <error/rlang_error>
#> Error in `code()`:
#> Problem getting code for field "y".
#> Caused by error in `code()`:
#> Problem getting code for field "a".
#> Caused by error in `code()`:
#> Unsupported type: <day_time_interval>.
#> ℹ The arrow package currently has no function to make these.
```
<sup>Created on 2021-11-22 by the [reprex
package](https://reprex.tidyverse.org) (v2.0.1.9000)</sup>
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