spack/lib
Todd Gamblin d2a9e3f871 refactor: Index requirements by when spec
Part 3 of reworking all package metadata to key by `when` conditions.

Changes conflict dictionary structure from this:

    { (requirement_spec, ...): [(when_spec, policy, msg)] }

to this:

    { when_spec: [((requirement_spec, ...), policy, msg), ...] }
2024-01-09 00:26:22 -08:00
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spack refactor: Index requirements by when spec 2024-01-09 00:26:22 -08:00