thisisnic commented on code in PR #33614:
URL: https://github.com/apache/arrow/pull/33614#discussion_r1068471475


##########
r/R/dataset-format.R:
##########
@@ -118,102 +118,71 @@ IpcFileFormat <- R6Class("IpcFileFormat", inherit = 
FileFormat)
 #' @rdname FileFormat
 #' @export
 CsvFileFormat <- R6Class("CsvFileFormat", inherit = FileFormat)
-CsvFileFormat$create <- function(...,
-                                 opts = csv_file_format_parse_options(...),
-                                 convert_options = 
csv_file_format_convert_opts(...),
-                                 read_options = 
csv_file_format_read_opts(...)) {
-  check_csv_file_format_args(...)
-  # Evaluate opts first to catch any unsupported arguments
-  force(opts)
-
-  options <- list(...)
-  schema <- options[["schema"]]
-  if (!is.null(schema) && !inherits(schema, "Schema")) {
-    abort(paste0(
-      "`schema` must be an object of class 'Schema' not '",
-      class(schema)[1],
-      "'."
-    ))
-  }
+CsvFileFormat$create <- function(...) {

Review Comment:
   Good points made; the refactoring I did here is because that bit of the code 
was overly complex, so in the name of usability, I think it'll make more sense 
to write actual independent docs for this function with more explicit 
information about its usage.



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