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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.
61 lines
1.6 KiB
Plaintext
61 lines
1.6 KiB
Plaintext
;; lib/minikanren/tests/tabling.sx — Phase 7 piece A: naive memoization.
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;; --- Fibonacci canary: tabled vs naive --
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(define
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tab-fib-o
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(table-2
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"fib"
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(fn
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(n result)
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(conde
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((== n 0) (== result 0))
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((== n 1) (== result 1))
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((fresh (n-1 n-2 r-1 r-2) (lto-i 1 n) (minuso-i n 1 n-1) (minuso-i n 2 n-2) (tab-fib-o n-1 r-1) (tab-fib-o n-2 r-2) (pluso-i r-1 r-2 result)))))))
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(mk-tab-clear!)
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(mk-test "tab-fib-zero" (run* q (tab-fib-o 0 q)) (list 0))
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(mk-tab-clear!)
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(mk-test "tab-fib-one" (run* q (tab-fib-o 1 q)) (list 1))
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(mk-tab-clear!)
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(mk-test "tab-fib-two" (run* q (tab-fib-o 2 q)) (list 1))
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(mk-tab-clear!)
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(mk-test "tab-fib-five" (run* q (tab-fib-o 5 q)) (list 5))
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(mk-tab-clear!)
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(mk-test "tab-fib-ten" (run* q (tab-fib-o 10 q)) (list 55))
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(mk-tab-clear!)
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(mk-test
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"tab-fib-twenty"
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(run* q (tab-fib-o 20 q))
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(list 6765))
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;; --- ground-term predicate ---
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(mk-test "tab-ground-term-num" (mk-tab-ground-term? 5) true)
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(mk-test "tab-ground-term-str" (mk-tab-ground-term? "hi") true)
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(mk-test
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"tab-ground-term-list"
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(mk-tab-ground-term? (list 1 2 3))
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true)
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(mk-test "tab-ground-term-var" (mk-tab-ground-term? (mk-var "x")) false)
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(mk-test
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"tab-ground-term-nested"
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(mk-tab-ground-term?
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(list 1 (list 2 (mk-var "y")) 3))
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false)
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;; --- caching reduces work — count cache hits via repeated query ---
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(mk-test
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"tab-cache-replay"
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(begin
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(mk-tab-clear!)
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(let
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((first (run* q (tab-fib-o 10 q)))
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(second (run* q (tab-fib-o 10 q))))
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(and (= first (list 55)) (= second (list 55)))))
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true)
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(mk-tests-run!)
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