class ActionView::CacheExpiry::Executor

def clear_cache
  @execution_lock.with_write_lock do
    ActionView::LookupContext::DetailsKey.clear
  end
end

def complete(_)
  @execution_lock.release_read_lock
end

def initialize(watcher:)
  @execution_lock = Concurrent::ReentrantReadWriteLock.new
  @cache_expiry = ViewModificationWatcher.new(watcher: watcher) do
    clear_cache
  end
end

def run
  ActiveSupport::Dependencies.interlock.permit_concurrent_loads do
    @cache_expiry.execute_if_updated
    @execution_lock.acquire_read_lock
  end
end