Hasty Briefsbeta

Functional Threading "Macros"

a day ago
  • #Threading Macros
  • #Functional Programming
  • #Lamber
  • Threading macros in Common Lisp and Clojure improve code readability by showing the sequence of actions in order.
  • Threading macros are not easily implementable in non-Lisp languages, leading to the need for threading combinators.
  • Threading combinators involve functions that pass closures around, reversing the applicative evaluation order.
  • The post uses Lamber, a Lambda Calculus compiling language, to demonstrate threading combinators.
  • A pipe function is introduced to initiate piping by taking an initial value and a curried function.
  • The pipe function works by closing over a function and applying a continuation to it.
  • A piped terminator is used to return the passed data, acting as an identity function.
  • The implementation focuses on thread-last due to Lamber's tail-heavy function philosophy.
  • Thread-first and multi-arg combinators are left as exercises for the reader.