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Brings docs/proposals/PACKAGE_MANAGER_LOGIC_PROPOSAL.md from the exploratory-docs branch as the frozen-base resolver's design brief. Co-authored-by: johns243a <johns243a@gmail.com>
packages/2-style projections interned the first catalog as a ground fact; drop get_value/get_variable from the intern-once allowlist. Lowering a predicate that uses member/2 (or a callee that does) kept only the first witness; leave those on the interpreter. !/0 wiped state.cps entirely, so a lowered helper with a neck cut (satisfies/2) stole the caller's member alternatives. Cut now respects the Call-frame barrier. Probes: projection_not_ground_fact_memo, t4_does_not_steal_search_cps, neck_cut_does_not_steal_caller_cps. Co-authored-by: johns243a <johns243a@gmail.com>
Spec (resolver.pl) and contract corpus (test_resolver.pl) cover classic resolve, layered resolve without touching the base, explain_blocked ceilings, layer_closure manifests, and removal_orphans. Catalog is data; SWI is the oracle. wamjs/ compiles the spec through wam_javascript mixed emit. The shim does term↔JSON only. Seeded differential (≥2000 catalogs) gates selection, explanation set, and orphan set against SWI. Co-authored-by: johns243a <johns243a@gmail.com>
SWI json_write_dict sorts dict keys; the shim inserted name/needs/base_has. Corpus and differential now stable-stringify so blocked/3 terms compare. Co-authored-by: johns243a <johns243a@gmail.com>
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September 2, 2026 02:23
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Incubates uw-resolve P0 under
examples/pkg_resolver/: a Prolog package resolver that understands a frozen immutable base (Puppy/Woof-CE style). Stock apt cannot reason about that boundary. One set of relations, four queries; SWI is the oracle; the same spec compiles throughwam_javascript(emit_mode(mixed)).Model
Catalog is data (no assert/retract):
Versions
v(Major, Minor, Patch)lexicographic. Constraints:any,eq(V),gte(V),lt(V),range(Lo, Hi)(Lo inclusive, Hi exclusive). No Debian epoch/tilde in P0.Determinism:
resolve*commit to the first search solution (prefer base-satisfied, else highest version). Selections/manifests sorted.explain_blockedenumerates;removal_orphansreturns one sorted list.Queries
resolve/3— classic closure; may upgrade a base packageresolve_layered/3— satisfiable without touching the base;explain_blockednames the held ceilinglayer_closure/3— non-base dependency closure, deps before dependentsremoval_orphans/3— PPM-style trim; base packages are never orphanswam_javascript fixes this program forced
packages/2interned the first catalog as the answer. Dropget_value/get_variablefrom the intern-once allowlist. Probe:projection_not_ground_fact_memo.member/2must stay interpreted — lowered Call is first-solution. Probe:t4_does_not_steal_search_cps.!/0wiped all choice points — a lowered helper with a neck cut (satisfies/2) stole the caller'smember/2alternatives, so version backtracking andexplain_blockedfailed. Neck cut now respects the Call-frame barrier. Probe:neck_cut_does_not_steal_caller_cps.No edits to
wam_target.pl,wam_text_parser.pl, harness/registry/matrix/glue, orexamples/cli_args/. Frozenexamples/cli_args/wamjs/js/was not regenerated.Acceptance
swipl -q -g test_resolver -t halt examples/pkg_resolver/test_resolver.pl→ 22/22bash examples/pkg_resolver/wamjs/run_corpus_wamjs.sh→ 23/23 matched SWIbash examples/pkg_resolver/run_differential.sh→ 2200 cases, 0 divergences, 0 crashes. timing: swi 1.014s wamjs 6.711stests/test_wam_javascript_lowered.pl(incl. 3 new probes)tests/test_wam_javascript_builtins.pltests/test_wam_javascript_fact_sources.plCONFORMANCE_TARGETS=javascriptontests/test_wam_cross_target_conformance.pl(no javascript adapter registered; opt-in no-op as on the lane tip)UW_PROFILE=1onbacktrack_conflict_deeper: 38 backtracks, maxCP 7, ~14 ms including profiler. Differential is ~3 ms/case on the mixed build; search stays interpreted (resolve_pending,candidates_high_first,pick) while list walks (matching_versions,matching_deps,satisfies) lower.Deferred
Debian epoch/tilde, Provides/virtual packages, GP-LMDB catalog backend (P2),
pkg-style CLI viaexamples/cli_args.