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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.
76 lines
1.5 KiB
Plaintext
76 lines
1.5 KiB
Plaintext
;; lib/minikanren/tests/conda.sx — Phase 5 piece A tests for `conda`.
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;; --- conda commits to first non-failing head, keeps ALL its answers ---
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(mk-test
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"conda-first-clause-keeps-all"
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(run*
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q
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(conda
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((mk-disj (== q 1) (== q 2)))
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((== q 100))))
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(list 1 2))
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(mk-test
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"conda-skips-failing-head"
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(run*
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q
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(conda
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((== 1 2))
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((mk-disj (== q 10) (== q 20)))))
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(list 10 20))
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(mk-test
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"conda-all-fail"
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(run*
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q
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(conda ((== 1 2)) ((== 3 4))))
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(list))
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(mk-test "conda-no-clauses" (run* q (conda)) (list))
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;; --- conda DIFFERS from condu: conda keeps all head answers ---
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(mk-test
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"conda-vs-condu-divergence"
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(list
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(run*
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q
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(conda
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((mk-disj (== q 1) (== q 2)))
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((== q 100))))
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(run*
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q
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(condu
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((mk-disj (== q 1) (== q 2)))
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((== q 100)))))
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(list (list 1 2) (list 1)))
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;; --- conda head's rest-goals run on every head answer ---
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(mk-test
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"conda-rest-goals-run-on-all-answers"
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(run*
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q
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(fresh
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(x r)
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(conda
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((mk-disj (== x 1) (== x 2))
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(== r (list :tag x))))
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(== q r)))
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(list (list :tag 1) (list :tag 2)))
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;; --- if rest-goals fail on a head answer, that head answer is filtered;
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;; the clause does not fall through to next clauses (per soft-cut). ---
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(mk-test
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"conda-rest-fails-no-fallthrough"
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(run*
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q
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(conda
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((mk-disj (== q 1) (== q 2)) (== q 99))
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((== q 200))))
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(list))
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(mk-tests-run!)
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