DCI that respects the method cache
Ryan Bates sent this pithy tweet earlier today:
I’ve been toying with DCI lately. But the techniques spelled out to date here and here use Object.extend. Extending an object blows away the method cache, slightly reducing performance.
So, as I lazed in bed, reading this tweet while dreaming of turkey to come, it hits me: instead of implementing the Delegator pattern through extend, let’s just use an actual Delegator object.
Simple example below based on the usage of NewUserProvisioner within RubyPair.
Our good friend SimpleDelegator is defined in “delegate.rb” in stdlib, courtesy of James Edward Gray II.
Continue Reading…Posted by evan on Nov 24, 2011
My name is Evan Light and, yes, I am a nerd. I'm also a professional software developer who, after spending one too many years contracting to the federal government, escaped into the far more enjoyable commercial world. Having spent several years using C and even more using Java (the latter very nearly caused me to give up programming entirely), I consider myself fortunate to have discovered Ruby and to use it as part of my daily work.