Release 2.2.0

Diff

2.1.0...3606a207

Checklist

• Change the VERSION constant to a minor version in lib/declarative_policy/version.rb (you might have to change the version number in the next steps according to SemVer).
• Ensure the diff link above is up-to-date.
• Add release notes to the Changelog section below.
• Based on the diff and the release notes, update the version.rb according to SemVer.
• Run bundle install to update Gemfile.lock

Changelog

The generated changelog only includes !85 (merged). The squash commit for !86 (merged) and the commit for !87 (merged) have no Changelog: trailer, so I added their entries by hand.

Fixed (1 change)

• Iterate runner values when invalidating cached policies (merge request): DeclarativePolicy.invalidate no longer raises NoMethodError when a cached policy has runners.

Changed (4 changes)

• Return a frozen empty array for abilities with no rules (merge request)
• IMPORTANT: configuration_for now returns a frozen array that is shared between calls. Code that appends to the result raises FrozenError. (merge request)
• Runner::State#called_conditions now returns a new Set on each call. (merge request)
• Added Base#user_cache_key and Base#subject_cache_key, two new public methods. (merge request)

Performance (2 changes)

• Cache each policy class's combined declarations (merge request)
• Cut the per-check cost of running a policy (merge request): caches each ability's combined rules, builds condition cache keys once per policy, and tracks runner dependencies by cache key.