May 26, 2018

Use Hash::Util::FieldHash or ties, depending on availability

Under older perls this module provides a drop in compatible api to HashUtilFieldHash using perltie. When HashUtilFieldHash is available it will use that instead.

This way code requiring field hashes can benefit from fast, robust field hashes on Perl 5.10 and newer, but still run on older perls that don’t ship with that module.

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