pitrou commented on code in PR #41561:
URL: https://github.com/apache/arrow/pull/41561#discussion_r1600150030
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cpp/src/arrow/chunk_resolver.h:
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@@ -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) {
Review Comment:
I don't understand how such unguarded uses could occur. The primary use case
for `ChunkLocation` is as a return value for `ChunkResolver`. _Unless_ the user
has passed an invalid logical index, `ChunkResolver` should always return valid
`ChunkLocation`s.
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