Copilot commented on code in PR #50854:
URL: https://github.com/apache/arrow/pull/50854#discussion_r3837883314


##########
ruby/red-arrow-format/lib/arrow-format/array.rb:
##########
@@ -852,7 +852,21 @@ def type
   end
 
   class FixedSizeBinaryArray < Array
-    def initialize(type, size, validity_buffer, values_buffer)
+    include BufferAlignable
+
+    def initialize(type, *args)
+      unless type.is_a?(Type)
+        type = FixedSizeBinaryType.try_convert(type) || type
+      end
+      if args.size == 1
+        args = build_data(args.first, type)
+      elsif args.size != 3

Review Comment:
   `FixedSizeBinaryArray.new(type, values)` assumes `type` is a 
`FixedSizeBinaryType` (has `byte_width`). If a caller passes another 
`ArrowFormat::Type` (or any non-convertible value), this will currently blow up 
later with `NoMethodError` inside `build_data`/`each_buffer`. It should fail 
fast with a clear `ArgumentError` after attempting 
`FixedSizeBinaryType.try_convert`.



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