class ActionView::LookupContext::DetailsKey

def self.clear
  ActionView::PathRegistry.all_resolvers.each do |resolver|
    resolver.clear_cache
  end
  @view_context_class = nil
  @details_keys.clear
  @digest_cache.clear
end

def self.details_cache_key(details)
  @details_keys.fetch(details) do
    if formats = details[:formats]
      unless Template::Types.valid_symbols?(formats)
        details = details.dup
        details[:formats] &= Template::Types.symbols
      end
    end
    @details_keys[details] ||= TemplateDetails::Requested.new(**details)
  end
end

def self.digest_cache(details)
  @digest_cache[details_cache_key(details)] ||= Concurrent::Map.new
end

def self.digest_caches
  @digest_cache.values
end

def self.view_context_class
  @view_context_mutex.synchronize do
    @view_context_class ||= ActionView::Base.with_empty_template_cache
  end
end