Compiling higher order functions with GADTsImplementing first class functions in a bytecode interpreter is trivial. But how do compilers that generate machine code (or lower to C, or SSA) implement higher order functions? Back in 2021, I found an answer when contributing closures to the Pallene compiler. Today I was researching something loosely related, and found yet another neat trick called defunctionalization in this paper. Defunctiona
Compiling higher order functions with GADTs | Lobsters
