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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.
93 lines
1.3 KiB
Plaintext
93 lines
1.3 KiB
Plaintext
;; lib/minikanren/tests/take-drop.sx — Peano-indexed prefix/suffix.
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(define
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mk-nat
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(fn (n) (if (= n 0) :z (list :s (mk-nat (- n 1))))))
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;; --- tako ---
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(mk-test
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"tako-zero"
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(run*
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q
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(tako (mk-nat 0) (list 1 2 3) q))
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(list (list)))
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(mk-test
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"tako-two"
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(run*
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q
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(tako
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(mk-nat 2)
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(list 1 2 3 4 5)
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q))
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(list (list 1 2)))
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(mk-test
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"tako-all"
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(run*
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q
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(tako (mk-nat 3) (list 1 2 3) q))
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(list (list 1 2 3)))
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(mk-test
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"tako-too-many"
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(run*
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q
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(tako (mk-nat 5) (list 1 2 3) q))
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(list))
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;; --- dropo ---
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(mk-test
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"dropo-zero"
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(run*
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q
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(dropo (mk-nat 0) (list 1 2 3) q))
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(list (list 1 2 3)))
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(mk-test
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"dropo-two"
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(run*
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q
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(dropo
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(mk-nat 2)
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(list 1 2 3 4 5)
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q))
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(list (list 3 4 5)))
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(mk-test
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"dropo-all"
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(run*
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q
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(dropo (mk-nat 3) (list 1 2 3) q))
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(list (list)))
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(mk-test
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"dropo-too-many"
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(run*
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q
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(dropo (mk-nat 5) (list 1 2 3) q))
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(list))
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;; --- take + drop round-trip ---
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(mk-test
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"tako-dropo-roundtrip"
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(run*
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q
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(fresh
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(p s)
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(tako
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(mk-nat 2)
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(list 1 2 3 4 5)
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p)
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(dropo
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(mk-nat 2)
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(list 1 2 3 4 5)
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s)
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(appendo p s q)))
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(list (list 1 2 3 4 5)))
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(mk-tests-run!)
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