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All the Perl that's Practical to Extract and Report

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  • Assuming that your diamondy inheritance heirarchy is somewhat sane, the most common problems that cause a hierarchy to be invalid are re-ordering of dependencies, which is relatively easy to spot and fix. Example: package A; our @ISA = qw/B C/; package B; our @ISA = qw/D E/; package C; our @ISA = qw/E D/; Because A inherits from B+C, and they each inherit D+E in a different order, C3 cannot resolve this. The fix is to use D+E in the same order in both places. Most issues converting legacy hierarchies