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Squash merge of 76 commits from loops/minikanren. Adds lib/minikanren/ — a complete miniKanren-on-SX implementation built on top of lib/guest/match.sx, validating the lib-guest unify-and-match kit as intended. Modules (20 .sx files, ~1700 LOC): unify, stream, goals, fresh, conde, condu, conda, run, relations, peano, intarith, project, nafc, matche, fd, queens, defrel, clpfd, tabling Phases 1–5 fully done (core miniKanren API, all classic relations, matche, conda, project, nafc). Phase 6 — native CLP(FD): domain primitives, fd-in / fd-eq / fd-neq / fd-lt / fd-lte / fd-plus / fd-times / fd-distinct / fd-label, with constraint reactivation iterating to fixed point. N-queens via FD: 4-queens 2 solutions, 5-queens 10 solutions (vs naive timeout past N=4). Phase 7 — naive ground-arg tabling: table-1 / table-2 / table-3. Fibonacci canary: tab-fib(25) = 75025 in seconds, naive fib(25) times out at 60s. Ackermann via table-3: A(3,3) = 61. 71 test files, 644+ tests passing across the suite. Producer/consumer SLG (cyclic patho, mutual recursion) deferred — research-grade work. The lib-guest validation experiment is conclusive: lib/minikanren/ unify.sx adds ~50 lines of local logic (custom cfg, deep walk*, fresh counter) over lib/guest/match.sx's ~100-line kit. The kit earns its keep ~3× by line count.
102 lines
2.0 KiB
Plaintext
102 lines
2.0 KiB
Plaintext
;; lib/minikanren/tests/fresh.sx — Phase 2 piece B tests for `fresh`.
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;; --- empty fresh: pure goal grouping ---
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(mk-test
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"fresh-empty-vars-equiv-conj"
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(stream-take 5 ((fresh () (== 1 1)) empty-s))
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(list empty-s))
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(mk-test
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"fresh-empty-vars-no-goals-is-succeed"
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(stream-take 5 ((fresh ()) empty-s))
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(list empty-s))
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;; --- single var ---
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(mk-test
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"fresh-one-var-bound"
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(let
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((s (first (stream-take 5 ((fresh (x) (== x 7)) empty-s)))))
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(first (vals s)))
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7)
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;; --- multiple vars + multiple goals ---
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(mk-test
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"fresh-two-vars-three-goals"
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(let
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((q (mk-var "q"))
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(g
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(fresh
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(x y)
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(== x 10)
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(== y 20)
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(== q (list x y)))))
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(mk-walk* q (first (stream-take 5 (g empty-s)))))
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(list 10 20))
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(mk-test
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"fresh-three-vars"
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(let
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((q (mk-var "q"))
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(g
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(fresh
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(a b c)
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(== a 1)
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(== b 2)
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(== c 3)
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(== q (list a b c)))))
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(mk-walk* q (first (stream-take 5 (g empty-s)))))
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(list 1 2 3))
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;; --- fresh interacts with disj ---
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(mk-test
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"fresh-with-disj"
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(let
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((q (mk-var "q")))
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(let
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((g (fresh (x) (mk-disj (== x 1) (== x 2)) (== q x))))
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(let
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((res (stream-take 5 (g empty-s))))
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(map (fn (s) (mk-walk q s)) res))))
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(list 1 2))
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;; --- nested fresh ---
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(mk-test
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"fresh-nested"
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(let
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((q (mk-var "q"))
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(g
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(fresh
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(x)
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(fresh
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(y)
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(== x 1)
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(== y 2)
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(== q (list x y))))))
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(mk-walk* q (first (stream-take 5 (g empty-s)))))
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(list 1 2))
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;; --- call-fresh (functional alternative) ---
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(mk-test
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"call-fresh-binds-and-walks"
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(let
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((s (first (stream-take 5 ((call-fresh (fn (x) (== x 99))) empty-s)))))
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(first (vals s)))
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99)
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(mk-test
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"call-fresh-distinct-from-outer-vars"
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(let
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((q (mk-var "q")))
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(let
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((g (call-fresh (fn (x) (mk-conj (== x 5) (== q (list x x)))))))
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(mk-walk* q (first (stream-take 5 (g empty-s))))))
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(list 5 5))
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(mk-tests-run!)
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