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dl-magic-rewrite rules query-rel adn args returns:
{:rules <rewritten-rules> :seed <magic-seed-fact>}
Worklist over (rel, adn) pairs starts from the query and stops
when no new pairs appear. For each rule with head matching a
worklist pair:
- Adorned rule: head :- magic_<rel>^<adn>(bound), body...
- Propagation rules: for each positive non-builtin body lit
at position i:
magic_<lit-rel>^<lit-adn>(bound-of-lit) :-
magic_<rel>^<adn>(bound-of-head),
body[0..i-1]
- Add (lit-rel, lit-adn) to the worklist.
Built-ins, negation, and aggregates pass through without
generating propagation rules. EDB facts are unchanged.
3 new tests cover seed structure, equivalence on chain-3 (full
closure, 6 ancestor tuples — magic helps only when the EDB has
nodes outside the seed's transitive cone), and same-query-answers
under the rewritten program. Total 202/202.
Wiring up a `dl-saturate-magic!` driver and large-graph perf
benchmarks is left for a future iteration.
21 lines
775 B
JSON
21 lines
775 B
JSON
{
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"lang": "datalog",
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"total_passed": 202,
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"total_failed": 0,
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"total": 202,
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"suites": [
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{"name":"tokenize","passed":26,"failed":0,"total":26},
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{"name":"parse","passed":18,"failed":0,"total":18},
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{"name":"unify","passed":28,"failed":0,"total":28},
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{"name":"eval","passed":25,"failed":0,"total":25},
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{"name":"builtins","passed":19,"failed":0,"total":19},
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{"name":"semi_naive","passed":8,"failed":0,"total":8},
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{"name":"negation","passed":10,"failed":0,"total":10},
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{"name":"aggregates","passed":18,"failed":0,"total":18},
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{"name":"api","passed":14,"failed":0,"total":14},
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{"name":"magic","passed":18,"failed":0,"total":18},
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{"name":"demo","passed":18,"failed":0,"total":18}
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],
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"generated": "2026-05-08T09:58:16+00:00"
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}
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