Posts tagged with: Compile-Time Safety

Custom Swift Macros: When They're Actually Worth the Build-Time Cost

Day 29 of the 30-day iOS series. The difference between @freestanding and @attached macros, why most macro ideas are over-engineering traps, and a real #URL macro — built TDD-first as a standalone Swift package — that catches BrewLog's force-unwrapped base URL at compile time instead of runtime.