class Sprockets::SassCacheStore

def _retrieve(key, version, sha)
  if obj = environment.cache_get("sass/#{key}")
    return unless obj[:version] == version
    return unless obj[:sha] == sha
    obj[:obj]
  else
    nil
  end
end

def _store(key, version, sha, contents)
  environment.cache_set("sass/#{key}", {:version => version, :sha => sha, :contents => contents})
end

def initialize(environment)
  @environment = environment
end