pitrou commented on code in PR #35794:
URL: https://github.com/apache/arrow/pull/35794#discussion_r1210613034
##########
cpp/src/arrow/datum.h:
##########
@@ -64,69 +68,102 @@ struct ARROW_EXPORT Datum {
Datum(Datum&& other) = default;
Datum& operator=(Datum&& other) = default;
+ /// \brief Construct from a Scalar
Datum(std::shared_ptr<Scalar> value) // NOLINT implicit conversion
: value(std::move(value)) {}
+ /// \brief Construct from an ArrayData
Datum(std::shared_ptr<ArrayData> value) // NOLINT implicit conversion
: value(std::move(value)) {}
+ /// \brief Construct from an ArrayData
Datum(ArrayData arg) // NOLINT implicit conversion
: value(std::make_shared<ArrayData>(std::move(arg))) {}
- Datum(const Array& value); // NOLINT implicit conversion
+ /// \brief Construct from an Array
+ Datum(const Array& value); // NOLINT implicit conversion
+
+ /// \brief Construct from an Array
Datum(const std::shared_ptr<Array>& value); // NOLINT implicit conversion
+
+ /// \brief Construct from a ChunkedArray
Datum(std::shared_ptr<ChunkedArray> value); // NOLINT implicit conversion
- Datum(std::shared_ptr<RecordBatch> value); // NOLINT implicit conversion
- Datum(std::shared_ptr<Table> value); // NOLINT implicit conversion
- // Explicit constructors from const-refs. Can be expensive, prefer the
- // shared_ptr constructors
+ /// \brief Construct from a RecordBatch
+ Datum(std::shared_ptr<RecordBatch> value); // NOLINT implicit conversion
+
+ /// \brief Construct from a Table
+ Datum(std::shared_ptr<Table> value); // NOLINT implicit conversion
+
+ /// \brief Construct from a ChunkedArray. Can be expensive, prefer the
+ /// shared_ptr constructor
explicit Datum(const ChunkedArray& value);
+
+ /// \brief Construct from a RecordBatch. Can be expensive, prefer the
+ /// shared_ptr constructor
explicit Datum(const RecordBatch& value);
+
+ /// \brief Construct from a Table. Can be expensive, prefer the
+ /// shared_ptr constructor
explicit Datum(const Table& value);
- // Cast from subtypes of Array or Scalar to Datum
+ /// \brief Cast from concrete types of Array or Scalar to Datum
Review Comment:
"subtypes" rather than "types"?
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