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erlang: Phase 8 BIF registry foundation (+18 runtime tests, 600/600)

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giles
2026-05-14 19:34:30 +00:00
parent 925bbd0d42
commit 498d2533d8
5 changed files with 88 additions and 6 deletions
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47
lib/erlang/tests/runtime.sx
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@@ -165,6 +165,53 @@
(er-rt-test "registry-reset clears" (dict-has? (er-modules-get) "hr1") false)
;; ── Phase 8: FFI BIF registry ──────────────────────────────────
(er-bif-registry-reset!)
(er-rt-test "empty registry" (len (er-list-bifs)) 0)
(er-rt-test "lookup miss" (er-lookup-bif "crypto" "hash" 2) nil)
(er-register-bif! "fake" "echo" 1 (fn (vs) (nth vs 0)))
(er-rt-test "register grows registry" (len (er-list-bifs)) 1)
(define er-rt-bif-hit (er-lookup-bif "fake" "echo" 1))
(er-rt-test "lookup hit module" (get er-rt-bif-hit :module) "fake")
(er-rt-test "lookup hit name" (get er-rt-bif-hit :name) "echo")
(er-rt-test "lookup hit arity" (get er-rt-bif-hit :arity) 1)
(er-rt-test "lookup hit pure?" (get er-rt-bif-hit :pure?) false)
(er-rt-test "fn invocable" ((get er-rt-bif-hit :fn) (list 42)) 42)
;; Re-register replaces (same key)
(er-register-bif! "fake" "echo" 1 (fn (vs) "replaced"))
(er-rt-test "re-register same key, count unchanged" (len (er-list-bifs)) 1)
(er-rt-test "re-register replaces fn"
((get (er-lookup-bif "fake" "echo" 1) :fn) (list 99)) "replaced")
;; Pure variant
(er-register-pure-bif! "fake" "pure" 2 (fn (vs) (+ (nth vs 0) (nth vs 1))))
(er-rt-test "pure registered separately, count 2" (len (er-list-bifs)) 2)
(er-rt-test "pure flag true"
(get (er-lookup-bif "fake" "pure" 2) :pure?) true)
(er-rt-test "pure fn invocable"
((get (er-lookup-bif "fake" "pure" 2) :fn) (list 7 8)) 15)
;; Arity disambiguation: same module+name, different arity = distinct entries
(er-register-bif! "fake" "echo" 2 (fn (vs) (list (nth vs 0) (nth vs 1))))
(er-rt-test "arity disambiguation count" (len (er-list-bifs)) 3)
(er-rt-test "arity-1 lookup still works"
((get (er-lookup-bif "fake" "echo" 1) :fn) (list 11)) "replaced")
(er-rt-test "arity-2 lookup independent"
(len ((get (er-lookup-bif "fake" "echo" 2) :fn) (list 1 2))) 2)
;; Reset clears the registry
(er-bif-registry-reset!)
(er-rt-test "reset clears" (len (er-list-bifs)) 0)
(er-rt-test "reset lookup nil" (er-lookup-bif "fake" "echo" 1) nil)
(define
er-rt-test-summary
(str "runtime " er-rt-test-pass "/" er-rt-test-count))