discourse/lib/freedom_patches/translate_accelerator.rb

module I18n
  # this accelerates translation a tiny bit (halves the time it takes)
  class << self
    alias_method :translate_no_cache, :translate
    alias_method :reload_no_cache!, :reload!
    LRU_CACHE_SIZE = 2000

    def reload!
      @cache = nil
      reload_no_cache!
    end

    def translate(*args)
      @cache ||= LruRedux::ThreadSafeCache.new(LRU_CACHE_SIZE)
      found = true
      k = [args,config.locale,config.backend.object_id]
      t  = @cache.fetch(k){found=false}
      unless found
        t = @cache[k] = translate_no_cache(*args)
      end

      t.dup
    end

    alias_method :t, :translate
  end
end