Esoteric Ruby in MemoWise | Jemma Issroff

We recently released a memoization gem, MemoWise! We’ve written about its origin story and performance. In this post, we’ll discuss some esoteric corners of Ruby we encountered while writing MemoWise.Memoizing frozen objects with prependOne of the features we needed to support when creating this gem was memoization of frozen, or immutable, objects. Specifically, we use the Values gem which creates immutable instances. Once an object is frozen, we can’t assign any of its instance variables:.