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datalog: diagonal query (repeated var) regression test (223/223)
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giles
2026-05-08 10:33:45 +00:00
parent a648247ae4
commit 370df5b8e5
3 changed files with 16 additions and 6 deletions
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8
lib/datalog/scoreboard.json
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@@ -1,13 +1,13 @@
{ {
"lang": "datalog", "lang": "datalog",
"total_passed": 222, "total_passed": 223,
"total_failed": 0, "total_failed": 0,
"total": 222, "total": 223,
"suites": [ "suites": [
{"name":"tokenize","passed":26,"failed":0,"total":26}, {"name":"tokenize","passed":26,"failed":0,"total":26},
{"name":"parse","passed":18,"failed":0,"total":18}, {"name":"parse","passed":18,"failed":0,"total":18},
{"name":"unify","passed":28,"failed":0,"total":28}, {"name":"unify","passed":28,"failed":0,"total":28},
{"name":"eval","passed":29,"failed":0,"total":29}, {"name":"eval","passed":30,"failed":0,"total":30},
{"name":"builtins","passed":19,"failed":0,"total":19}, {"name":"builtins","passed":19,"failed":0,"total":19},
{"name":"semi_naive","passed":8,"failed":0,"total":8}, {"name":"semi_naive","passed":8,"failed":0,"total":8},
{"name":"negation","passed":10,"failed":0,"total":10}, {"name":"negation","passed":10,"failed":0,"total":10},
@@ -16,5 +16,5 @@
{"name":"magic","passed":24,"failed":0,"total":24}, {"name":"magic","passed":24,"failed":0,"total":24},
{"name":"demo","passed":21,"failed":0,"total":21} {"name":"demo","passed":21,"failed":0,"total":21}
], ],
"generated": "2026-05-08T10:31:43+00:00" "generated": "2026-05-08T10:33:34+00:00"
} }

4
lib/datalog/scoreboard.md
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@@ -1,13 +1,13 @@
# datalog scoreboard # datalog scoreboard
**222 / 222 passing** (0 failure(s)). **223 / 223 passing** (0 failure(s)).
| Suite | Passed | Total | Status | | Suite | Passed | Total | Status |
|-------|--------|-------|--------| |-------|--------|-------|--------|
| tokenize | 26 | 26 | ok | | tokenize | 26 | 26 | ok |
| parse | 18 | 18 | ok | | parse | 18 | 18 | ok |
| unify | 28 | 28 | ok | | unify | 28 | 28 | ok |
| eval | 29 | 29 | ok | | eval | 30 | 30 | ok |
| builtins | 19 | 19 | ok | | builtins | 19 | 19 | ok |
| semi_naive | 8 | 8 | ok | | semi_naive | 8 | 8 | ok |
| negation | 10 | 10 | ok | | negation | 10 | 10 | ok |

10
lib/datalog/tests/eval.sx
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@@ -273,6 +273,16 @@
(dl-saturated? db)) (dl-saturated? db))
false) false)
;; Repeated variable (diagonal): p(X, X) only matches tuples
;; whose two args are equal. The unifier handles this via the
;; subst chain — first occurrence binds X, second occurrence
;; checks against the binding.
(dl-et-test-set! "diagonal query"
(dl-query
(dl-program "p(1, 1). p(2, 3). p(4, 4). p(5, 5).")
(list (quote p) (quote X) (quote X)))
(list {:X 1} {:X 4} {:X 5}))
;; A relation can be both EDB-seeded and rule-derived; ;; A relation can be both EDB-seeded and rule-derived;
;; saturate combines facts + derivations. ;; saturate combines facts + derivations.
(dl-et-test-set! "mixed EDB + IDB same relation" (dl-et-test-set! "mixed EDB + IDB same relation"