pitrou commented on code in PR #41561:
URL: https://github.com/apache/arrow/pull/41561#discussion_r1599923587
##########
cpp/src/arrow/chunk_resolver.h:
##########
@@ -36,8 +39,42 @@ struct ChunkLocation {
/// \brief Index of the value in the chunk
///
- /// The value is undefined if chunk_index >= chunks.size()
+ /// The value is UNDEFINED if chunk_index >= chunks.size()
int64_t index_in_chunk = 0;
+
+ /// \brief Create a ChunkLocation without asserting any preconditions.
+ static ChunkLocation Forge(int64_t chunk_index, int64_t index_in_chunk) {
+ ChunkLocation loc;
+ loc.chunk_index = chunk_index;
+ loc.index_in_chunk = index_in_chunk;
+ return loc;
+ }
+
+ ChunkLocation() = default;
+
+ public:
+ template <class ChunkResolver>
+ ChunkLocation(const ChunkResolver& resolver, int64_t chunk_index,
+ int64_t index_in_chunk)
+ : chunk_index(chunk_index), index_in_chunk(index_in_chunk) {
Review Comment:
In which context do we want to produce a `ChunkLocation` out of arbitrary
integers.
##########
cpp/src/arrow/chunk_resolver.h:
##########
@@ -36,8 +39,42 @@ struct ChunkLocation {
/// \brief Index of the value in the chunk
///
- /// The value is undefined if chunk_index >= chunks.size()
+ /// The value is UNDEFINED if chunk_index >= chunks.size()
int64_t index_in_chunk = 0;
+
+ /// \brief Create a ChunkLocation without asserting any preconditions.
+ static ChunkLocation Forge(int64_t chunk_index, int64_t index_in_chunk) {
+ ChunkLocation loc;
+ loc.chunk_index = chunk_index;
+ loc.index_in_chunk = index_in_chunk;
+ return loc;
+ }
+
+ ChunkLocation() = default;
+
+ public:
+ template <class ChunkResolver>
+ ChunkLocation(const ChunkResolver& resolver, int64_t chunk_index,
+ int64_t index_in_chunk)
+ : chunk_index(chunk_index), index_in_chunk(index_in_chunk) {
Review Comment:
In which context do we want to produce a `ChunkLocation` out of arbitrary
integers?
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