Wednesday, April 4, 2018

lens over tea #1: lenses 101, traversals 101, and some implementation details

lens over tea #1: lenses 101, traversals 101, and some implementation details

Okay, so I never could really understand how lens works. This is an attempt to understand lens as completely as possible, including the ideas behind it, the implementation, and the design choices.

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The Y Combinator (Slight Return)

Tiger got to hunt, Bird got to fly; Lisper got to sit and wonder, (Y (Y Y))? Tiger got to sleep, Bird got to land; Lisper got to tell hims...