core.logic doesn't really use macros does it? Maybe to simplify the syntax, but macros is in no way required to build a core.logic library, at least not in the

core.logic doesn't really use macros does it? Maybe to simplify the syntax, but macros is in no way required to build a core.logic library, at least not in the same way as core.async requires it. The real beauty of macros is to simplify syntax without taking a runtime performance hit. How would you implement thread-first or thread-last in Haskell without a runtime performance hit? Template Haskell?