Pattern matching is the elimination form for algebraic types — the way you take apart what introduction rules put together. Exhaustiveness, nested patterns, guards, refutability, and the deep reason why the compiler insists you handle every case.
Posts tagged “pattern-matching” (3)
Template specialization isn't just an override mechanism. It's the compile-time language's pattern matching — it takes types apart, examines their bones, and lets you react to their shape.
A variant says "I am exactly one of these types, and you must handle every possibility." The compiler enforces it.