wesm commented on a change in pull request #7310:
URL: https://github.com/apache/arrow/pull/7310#discussion_r433855919
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File path: cpp/src/arrow/compute/exec.h
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@@ -36,6 +36,7 @@
namespace arrow {
class Array;
+class BooleanArray;
Review comment:
Note: IWYU unfortunately doesn't recognize forward declarations
(https://github.com/include-what-you-use/include-what-you-use/issues/530) but
we can add mappings to build-support/iwyu/mappings/arrow-misc.imp to attribute
symbols to type_fwd.h so it won't complain about them. I'll fill up these
mappings incrementally to help
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