thorfour opened a new pull request, #36854:
URL: https://github.com/apache/arrow/pull/36854
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### Rationale for this change
The Concatenate function would capture panic's and return errors, however it
wouldn't ensure that any allocations that happened in the `concat` sub function
were cleaned up upon doing so.
This change moves the `recover()` step into the `concat` function and will
call `Release()` on the data object in the case of panic or error.
### What changes are included in this PR?
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### Are these changes tested?
A test called `TestConcatPanic` was added that causes the allocator to throw
a panic part way during a concatenation, and ensures that the checked allocator
still returns 0.
### Are there any user-facing changes?
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