Class: Module

Inherits:
Object show all
Defined in:
lib/ethereum/core_ext/module/lru_cache.rb

Instance Method Summary collapse

Instance Method Details

#lru_cache(meth, n) ⇒ Object 



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# File 'lib/ethereum/core_ext/module/lru_cache.rb', line 7

def lru_cache(meth, n)
  @_lru_caches ||= {}
  @_lru_caches[meth] ||= LruRedux::Cache.new n
  cache = @_lru_caches[meth]

  origin_meth = "#{meth}_without_cache"
  self.send :alias_method, origin_meth, meth

  self.send(:define_method, meth) do |*args|
    cache[args] ||= send(origin_meth, *args)
  end
end