1d6e740668
Add a thread-safe delay type (concurrency.ss): make-delay wraps a thunk; deref/ force run it once under a lock and cache (JVM delays are thread-safe + memoized). delay? and realized?-on-a-delay are native; the overlay's `delay` macro (-> make-delay) and `force` (-> deref) now work. realized? wrapper (post-prelude) and the deref chain gain a delay arm. Removed the np-delay? stub from natives-parity.ss (the real type lives in concurrency.ss). Seed unchanged (no re-mint). zero-Janet 2673->2685, 0 new divergences; Janet gate + JVM cert green. jolt-cf1q.7 |
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