GH-49071: [Ruby] Add support for writing list and large list arrays #49072
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Component: Ruby
Component: GLib
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hiroyuki-sato
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Jan 30, 2026
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+1
LD_LIBRARY_PATH=/tmp/local/lib:/home/arch/arrow/red-arrow/ext/arrow/ GI_TYPELIB_PATH=/tmp/local/lib/girepository-1.0 rake -I /home/arch/arrow/ruby/red-arrow/lib test
cd /home/arch/arrow/ruby/red-arrow-format
/home/arch/.rbenv/versions/3.4.7/bin/ruby test/run.rb
Loaded suite test
Started
/home/arch/arrow/ruby/red-arrow-format/lib/arrow-format/file-reader.rb:40: warning: IO::Buffer is experimental and both the Ruby and C interface may change in the future!
Finished in 1.716925227 seconds.
---------------------------------------------------------------------------------------------------------------
168 tests, 168 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
100% passed
---------------------------------------------------------------------------------------------------------------
97.85 tests/s, 97.85 assertions/s
cd -
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Rationale for this change
They use different offset size.
What changes are included in this PR?
ArrowFormat::ListType#to_flatbuffersArrowFormat::LargeListType#to_flatbuffersArrowFormat::VariableSizeListArray#childArrowFormat::VariableSizeListArray#each_buffergarrow_array_get_null_bitmap()returnsNULLwhen null bitmap doesn't existgarrow_list_array_get_value_offsets_buffer()garrow_large_list_array_get_value_offsets_buffer()Are these changes tested?
Yes.
Are there any user-facing changes?
Yes.