Allows you to unobtrusively memoize methods without parameters.
class Stopwatch extend Pakiderm def start @started_at = Time.now end def stop elapsed_time end memoize \ def elapsed_time Time.now - @started_at end end
Memoized methods will only be called the first time; the result will be stored and returned on subsequent invocations.
stopwatch = Stopwatch.new stopwatch.start stopwatch.stop # Example: 3.991826 stopwatch.elapsed_time # => 3.991826
You can also pass a list of methods that should be memoized:
memoize :complex_calculation, :api_response, :db_query
Pakiderm adds a method by using
Module#prepend in order to"intercept" calls to the original method and provide memoization.
If you override the method in a subclass, Pakiderm's method won't be able to intercept calls to the subclass' method.
Copyright (c) 2014 Máximo Mussini Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.