ref: 321aec6bf2b82698196a94725e37cee135b1fe2b
dir: /test/matchor.myr/
use std const main = { type foo = union `Black `Blue `Green `Red `Yellow `White ;; match `Green | `Black || `White: std.exit(1) | `Blue || `Green || `Red: std.put("color\n") | _: std.exit(1) ;; match `std.Some 100 | `std.Some (100 || 200 || 300): std.put("hundreds\n") | `std.Some _: std.exit(1) | _: std.exit(1) ;; match `std.Some (`std.Some 333, 123, 789) | `std.Some (`std.Some (101||451||789||333), _, _): std.put("good #1\n") | `std.Some (`std.Some (100||200), 222, 333): std.exit(1) | `std.Some _: std.exit(1) | `std.None: std.exit(1) ;; match 4 | 1||2||4: std.put("good $2\n") | _: std.exit(1) ;; const a = 4 match 4 | 1||2||a: std.put("good $3\n") | _: std.exit(1) ;; std.put("all good\n") }