37c433bd4a
Closes the last clojure.core prelude emit gap (parse-uuid): the whole non-macro core now lowers to Scheme (prelude reach 355/355). A #"..." literal analyzes to a :regex IR node. The Chez back end emits a jolt-regex value over irregex (Alex Shinn, BSD), vendored as the vendor/irregex submodule -- a portable Scheme regex with PCRE/Java-style string patterns and first-class Chez support. host/chez/regex.ss wraps jolt's re-* surface over it: irregex-match -> re-matches (anchored), irregex-search -> re-find, groups as Clojure [whole g1 ...] vectors, re-seq as a jolt seq. re-pattern/re-matches/re-find/re-seq/regex? are def-var!'d into clojure.core so prelude / -e code resolves them. They stay OUT of the subset native-ops on purpose: irregex's Unicode/property-class semantics differ from the seed's byte-PEG approximation, so keeping them prelude-only avoids dragging engine-difference divergences into the subset-parity corpus. The Janet back end punts :regex to the interpreter (the seed compiles #"..." to a Janet PEG), so the main language is unchanged. Only two adaptations for Chez's top level: a cond-expand shim (Chez's is library-only) and a normalizing error wrapper (silences irregex's 1-arg error warnings). rt.ss load is ~0.18s. emit-test 131/131 (regex literal + re-* parity vs the CLI oracle); prelude reach 355/355; Chez subset 672/672, 0 divergences; full gate green.
380 lines
19 KiB
Text
380 lines
19 KiB
Text
# Phase 1 (jolt-cf1q.2) — REAL pipeline end to end: actual Clojure source ->
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# Janet-hosted analyzer -> host-neutral IR -> Scheme emitter -> run on Chez.
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# Correctness is checked by parity against the SAME program evaluated by the
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# Janet host (jolt's own oracle), so a divergence is the back end's, not the
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# program's.
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# janet test/chez/emit-test.janet (from repo root)
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(import ../../src/jolt/api :as api)
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(import ../../src/jolt/backend :as backend)
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(import ../../src/jolt/reader :as r)
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(import ../../host/chez/driver :as d)
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(import ../../host/chez/emit :as emit)
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(unless (d/chez-available?)
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(print "skip: chez not on PATH")
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(os/exit 0))
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(var total 0) (var fails 0)
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(defn ok [name pred &opt extra]
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(++ total)
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(if pred (printf "ok: %s" name)
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(do (++ fails) (printf "FAIL: %s %s" name (or extra "")))))
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# Janet-host oracle: evaluate the same program, stringify its value the way jolt
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# prints it at the CLI (so "832040" not "832040.0", "0.5" not 1/2, etc.).
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(def oracle-ctx (api/init {:compile? true}))
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(defn oracle [src] (string (api/load-string oracle-ctx src)))
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# Canonical CLI oracle (the run-corpus gate's boundary): collection values don't
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# round-trip through (string value) — they need jolt's real `-e` printer. Take
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# the last non-empty stdout line, exactly like run-corpus.janet.
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(defn cli-oracle [src]
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(def proc (os/spawn ["build/jolt" "-e" src] :p {:out :pipe :err :pipe}))
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(def out (ev/read (proc :out) 0x100000))
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(ev/read (proc :err) 0x100000)
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(os/proc-wait proc)
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(def lines (filter (fn [l] (not (empty? l))) (string/split "\n" (string/trim (if out (string out) "")))))
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(if (empty? lines) "" (last lines)))
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(def ctx (d/make-ctx))
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# 1) constant-folded arithmetic: (+ 1 2) -> the analyzer folds to const 3.
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(let [[code out err] (d/run-on-chez ctx "(+ 1 2)")]
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(ok "(+ 1 2) = 3" (and (= code 0) (= out "3") (= out (oracle "(+ 1 2)"))) (string out " | " err)))
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# 2) fib: var-cell def + named-fn self-recursion + native arith, via real IR.
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(let [src "(defn fib [n] (if (< n 2) n (+ (fib (- n 1)) (fib (- n 2))))) (fib 30)"
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[code out err] (d/run-on-chez ctx src)]
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(ok "(fib 30) = 832040" (and (= code 0) (= out "832040") (= out (oracle src))) (string out " | " err)))
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# 3) mandelbrot kernel: loop/recur, let, or-expansion, cross-var call
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# (run -> count-point), flonum compute. Parity vs the Janet host on run(40).
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(def mandel-defs ``
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(defn count-point [cr ci cap]
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(loop [i 0 zr 0.0 zi 0.0]
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(if (or (>= i cap) (> (+ (* zr zr) (* zi zi)) 4.0))
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i
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(recur (inc i)
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(+ (- (* zr zr) (* zi zi)) cr)
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(+ (* 2.0 (* zr zi)) ci)))))
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(defn run [n]
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(let [cap 200
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nd (* 1.0 n)]
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(loop [y 0 acc 0]
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(if (< y n)
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(let [ci (- (/ (* 2.0 y) nd) 1.0)
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row (loop [x 0 a 0]
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(if (< x n)
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(let [cr (- (/ (* 2.0 x) nd) 1.5)]
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(recur (inc x) (+ a (count-point cr ci cap))))
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a))]
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(recur (inc y) (+ acc row)))
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acc))))
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``)
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(let [src (string mandel-defs "\n(run 40)")
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[code out err] (d/run-on-chez ctx src)]
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(ok "mandelbrot run(40) parity" (and (= code 0) (= out (oracle src)))
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(string "chez=" out " janet=" (oracle src) " | " err)))
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# 3b) regressions found via the corpus probe:
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# - loop binds SEQUENTIALLY (Scheme named-let is parallel); b must see a.
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# - #(...) shorthand gensyms params with a trailing `#` (invalid in Scheme).
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(each [label src] [["loop sequential init" "(loop [a 1 b (+ a 10)] (+ a b))"]
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["#() shorthand" "(#(+ %1 %2) 1 2)"]]
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(let [[code out err] (d/run-on-chez ctx src)]
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(ok label (and (= code 0) (= out (oracle src))) (string "chez=" out " janet=" (oracle src) " | " err))))
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# 3c) persistent collections (jolt-wgbz): vector/map/set literals + leaf ops.
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# Maps/sets print in jolt's INTERNAL hash order, which a Scheme HAMT won't
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# reproduce — so unordered cases are checked via `(= ...)` (prints true/false,
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# exactly how the run-corpus gate compares them), and only ORDERED vectors are
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# compared by printed form. Parity is still vs the Janet oracle in both shapes.
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(each src [# ordered: direct printed-form parity
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"[1 2 3]"
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"(conj [1 2] 3)"
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"(count [1 2 3])"
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"(nth [10 20 30] 1)"
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"(get [10 20 30] 0)"
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"(peek [1 2 3])"
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"(pop [1 2 3])"
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# unordered / boolean: equality-wrapped, order-independent
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"(= {:a 1 :b 2} {:b 2 :a 1})"
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"(= {:a 1 :b 2} (assoc {:a 1} :b 2))"
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"(= 1 (get {:a 1} :a))"
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"(= 2 (count {:a 1 :b 2}))"
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"(= 99 (get {:a 1} :z 99))"
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"(= {:a 1} (dissoc {:a 1 :b 2} :b))"
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"(= #{1 2 3} (conj #{1 2} 3))"
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"(= #{1 2} (conj #{1 2} 2))"
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"(contains? #{1 2} 1)"
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"(contains? #{1 2} 9)"
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"(contains? {:a 1} :a)"
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"(empty? [])"
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"(empty? [1])"
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"(empty? {})"
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"(= [1 2] [1 2])"
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"(= [1 2] [1 3])"
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"(= #{1 2} #{2 1})"
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"(= {1 2} {1 3})"]
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(let [[code out err] (d/run-on-chez ctx src)
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want (cli-oracle src)]
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(ok (string "coll: " src) (and (= code 0) (= out want))
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(string "chez=" out " janet=" want " | " err))))
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# 3d) dynamic IFn dispatch (inc 3b): a keyword/vector/coll held in a LOCAL (let
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# binding or fn param) and called as a fn. The 3 ex-known-divergences. The
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# callee is a :local that's NOT the fn's self-name, so emit routes it through
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# the jolt-invoke fallback (procedure? -> apply; keyword/coll -> lookup).
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(each [src want] [["(let [v [10 20 30]] (v 1))" "20"]
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["(let [k :a] (k {:a 7}))" "7"]
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["((fn [f] (f {:a 1})) :a)" "1"]]
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(let [[code out err] (d/run-on-chez ctx src)]
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(ok (string "ifn: " src) (and (= code 0) (= out want))
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(string "chez=" out " want=" want " | " err))))
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# 3e) seq tier (inc 3b): jolt list type, first/rest/next/seq/cons/list, lazy-seq
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# (range/take over an infinite seq), map/filter/reduce/into/remove, keys/vals.
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# Lists and lazy seqs print as (...) and are sequential-= to vectors. Ordered
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# shapes -> printed-form parity vs the CLI oracle.
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(each src ["(first [1 2 3])"
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"(rest [1 2 3])"
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"(rest [1])"
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"(rest [])"
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"(next [1 2 3])"
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"(next [1])"
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"(cons 0 [1 2 3])"
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"(cons 1 nil)"
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"(list 1 2 3)"
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"(list)"
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"(seq [])"
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"(conj (list 2 3) 1)"
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"(conj nil 1 2)"
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"(map inc [1 2 3])"
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"(map + [1 2 3] [10 20 30])"
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"(map :a [{:a 1} {:a 2}])"
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"(filter even? [1 2 3 4])"
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"(remove even? [1 2 3 4])"
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"(reduce + 0 [1 2 3])"
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"(reduce + [1 2 3])"
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"(reduce + (map inc (range 4)))"
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"(into [] [1 2 3])"
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"(into [1] (list 2 3))"
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"(take 3 (range))"
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"(reverse [1 2 3])"
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"(apply + [1 2 3])"
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"(count (map inc [1 2 3]))"]
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(let [[code out err] (d/run-on-chez ctx src)
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want (cli-oracle src)]
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(ok (string "seq: " src) (and (= code 0) (= out want))
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(string "chez=" out " janet=" want " | " err))))
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# 3f) seq tier — unordered / cross-type, equality-wrapped (prints true/false):
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# keys/vals order is HAMT order, into-map / into-set unordered; sequential =
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# across vector and list.
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(each src ["(= 2 (count (keys {:a 1 :b 2})))"
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"(= 3 (reduce + (vals {:a 1 :b 2})))"
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"(= {:a 1 :b 2} (into {} [[:a 1] [:b 2]]))"
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"(= #{1 2 3} (into #{} [1 2 3]))"
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"(= [1 2 3] (list 1 2 3))"
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"(= [1 2 3] (map inc [0 1 2]))"
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# jolt returns a vector for (seq vec) / bounded (range); Chez returns a
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# Clojure-canonical lazy seq. Values are sequential-=, printed forms differ.
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"(= [1 2 3] (seq [1 2 3]))"
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"(= [0 1 2 3 4] (range 5))"]
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(let [[code out err] (d/run-on-chez ctx src)]
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(ok (string "seq=: " src) (and (= code 0) (= out "true"))
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(string "chez=" out " | " err))))
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# 3g) multi-arity + variadic fns (inc 3c): case-lambda dispatch, a Scheme rest
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# arg collected into a jolt seq (nil when empty), recur within an arity and a
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# self-call across arities. Value parity vs the CLI oracle.
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(each src ["((fn ([x] (* x 2)) ([x y] (+ x y))) 5)"
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"((fn ([x] (* x 2)) ([x y] (+ x y))) 3 4)"
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"(defn g ([x] x) ([x y] (+ x y))) (g 10)"
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"(defn g ([x] x) ([x y] (+ x y))) (g 10 20)"
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"(defn h [a & more] (count more)) (h 1 2 3 4)"
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# empty rest is nil (Clojure): count 0, first nil (prints "")
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"(defn h [a & more] (count more)) (h 1)"
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"(defn h [a & more] (first more)) (h 1)"
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"(defn h [a & more] (first more)) (h 1 2 3)"
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"(defn h [a & more] (reduce + a more)) (h 1 2 3 4)"
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"(defn h [a & more] (reduce + a more)) (apply h [1 2 3 4])"
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# self-call from one arity to another, then recur within it
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"(defn f ([n] (f n 0)) ([n acc] (if (zero? n) acc (recur (- n 1) (+ acc n))))) (f 5)"
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"((fn r [& xs] (if (seq xs) (+ (first xs) (apply r (rest xs))) 0)) 1 2 3)"]
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(let [[code out err] (d/run-on-chez ctx src)
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want (cli-oracle src)]
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(ok (string "arity: " src) (and (= code 0) (= out want))
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(string "chez=" out " janet=" want " | " err))))
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# 3i) throw / try / catch / finally + ex-info (inc 3e). Value parity vs the CLI
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# oracle for caught throws; an uncaught throw must exit non-zero.
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(each src [# jolt catch syntax is (catch Class binding body); the class is dropped
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# in the IR (catch-all). catch binds the thrown value raw.
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"(try (throw 42) (catch Exception e e))"
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"(try (+ 1 (throw 7)) (catch Exception e (* e 10)))"
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# finally runs and its value is discarded (try returns the body value)
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"(try 5 (finally 99))"
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"(try (throw 3) (catch Exception e (+ e 1)) (finally 99))"
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# body value passes through when nothing throws
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"(try (+ 2 3) (catch Exception e :nope))"
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# ex-info builds a real jolt map: read message/data via get (native-op)
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"(get (ex-info \"boom\" {:a 1}) :message)"
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"(get (ex-info \"boom\" {:a 1}) :data)"
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"(try (throw (ex-info \"boom\" {:a 1})) (catch Exception e (get e :message)))"
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"(try (throw (ex-info \"boom\" {:a 7})) (catch Exception e (get (get e :data) :a)))"
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# nested try: inner rethrows, outer catches
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"(try (try (throw 1) (catch Exception e (throw (+ e 1)))) (catch Exception e (* e 100)))"]
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(let [[code out err] (d/run-on-chez ctx src)
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want (cli-oracle src)]
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(ok (string "throw/try: " src) (and (= code 0) (= out want))
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(string "chez=" out " janet=" want " | " err))))
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# an uncaught throw aborts the program (non-zero exit) — matches the corpus
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# `:throws` semantics (interpret/compile both bail).
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(let [[code out err] (d/run-on-chez ctx "(throw (ex-info \"unhandled\" {}))")]
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(ok "throw: uncaught exits non-zero" (not= code 0)
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(string "code=" code " out=" out)))
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# 3j) quoted literals (inc 3f): a :quote node reconstructs the reader form as RT
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# values — symbols, lists, vectors, maps, sets, nested. Value parity vs the CLI.
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(each src ["'foo"
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"'foo/bar"
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"':kw"
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"'(1 2 3)"
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"'[1 2 3]"
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"'(a b c)"
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"'{:a 1}"
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"'(1 (2 3) 4)"
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"(first '(10 20 30))"
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"(count '[1 2 3])"
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"(rest '(1 2 3))"
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"(= 'foo 'foo)"
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"(= 'a 'b)"
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"(map inc '(1 2 3))"
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"(conj '[1 2] 3)"
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"(get '{:a 7} :a)"]
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(let [[code out err] (d/run-on-chez ctx src)
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want (cli-oracle src)]
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(ok (string "quote: " src) (and (= code 0) (= out want))
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(string "chez=" out " janet=" want " | " err))))
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# 3k) letfn + declare/def-no-init (inc 3g). letfn lowers to a Scheme `letrec*`
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# (mutual recursion between the named local fns — a plain let* can't forward-
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# ref a sibling). declare/(def x) with no init pre-creates the var cell so a
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# forward reference resolves; the real def runs before any call.
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(each src [# single local fn
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"(letfn [(twice [x] (* x 2))] (twice 5))"
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# self-recursion within a local fn
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"(letfn [(fact [n] (if (zero? n) 1 (* n (fact (dec n)))))] (fact 5))"
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# MUTUAL recursion — the letrec semantics a sequential let* lacks
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"(letfn [(ev? [n] (if (zero? n) true (od? (dec n)))) (od? [n] (if (zero? n) false (ev? (dec n))))] (ev? 10))"
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"(letfn [(ev? [n] (if (zero? n) true (od? (dec n)))) (od? [n] (if (zero? n) false (ev? (dec n))))] (od? 7))"
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# local fn passed to a higher-order fn
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"(letfn [(sq [x] (* x x))] (map sq [1 2 3]))"
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# declare + forward reference (the canonical mutually-recursive top-level use)
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"(declare is-ev) (defn is-od [n] (if (zero? n) false (is-ev (dec n)))) (defn is-ev [n] (if (zero? n) true (is-od (dec n)))) (is-ev 10)"
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# declare then redefine: the real def overwrites the reserved cell
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"(declare foo) (def foo 10) foo"]
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(let [[code out err] (d/run-on-chez ctx src)
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want (cli-oracle src)]
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(ok (string "letfn/declare: " src) (and (= code 0) (= out want))
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(string "chez=" out " janet=" want " | " err))))
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# 3l) host interop method calls (inc 3h). (.method target arg*) analyzes to a
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# :host-call IR node and lowers to a jolt-host-call dispatch. The Janet back end
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# PUNTS these (no interop model -> interpreter); the Chez RT shims the methods
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# jolt-core's io tier uses: .write -> display to a port, .isDirectory ->
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# file-directory?, .listFiles -> directory-list. Interop has no portable oracle
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# (the Janet host models it differently), so these are emit-shape checks plus one
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# deterministic runtime probe (the root "/" is always a directory).
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(each [label src needle]
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[["emit .write -> jolt-host-call" "(fn [w x] (.write w x))" "jolt-host-call"]
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["emit .write keeps method name" "(fn [w x] (.write w x))" "\"write\""]
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["emit .isDirectory -> jolt-host-call" "(fn [f] (.isDirectory f))" "isDirectory"]
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["emit .listFiles -> jolt-host-call" "(fn [f] (.listFiles f))" "listFiles"]]
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(let [scm (protect (emit/emit (backend/analyze-form ctx (in (r/parse-next src) 0))))]
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(ok label (and (scm 0) (string/find needle (scm 1))) (string/format "%p" scm))))
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(let [[code out err] (d/run-on-chez ctx "(.isDirectory \"/\")")]
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(ok "runtime .isDirectory \"/\" = true" (and (= code 0) (= out "true"))
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(string "chez=" out " | " err)))
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# 3m) regex (jolt-i0s3): the #"…" literal lowers to a jolt-regex value over the
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# vendored irregex; re-pattern/re-matches/re-find/re-seq/regex? are def-var!'d
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# into clojure.core (not subset native-ops — irregex's Unicode/property
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# semantics differ from the seed's byte-PEG), so they resolve in PRELUDE mode,
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# the path the assembled prelude takes. Parity vs the CLI oracle on standard
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# PCRE patterns both engines agree on.
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(defn run-prelude [src]
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(emit/set-prelude-mode! true)
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(def r (protect (emit/emit (backend/analyze-form ctx (in (r/parse-next src) 0)))))
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(emit/set-prelude-mode! false)
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(if (not (r 0)) [:emit-err (r 1) ""]
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(do
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(spit "/tmp/chez-regex-prelude.ss" (emit/program @[] (r 1)))
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(def proc (os/spawn ["chez" "--script" "/tmp/chez-regex-prelude.ss"] :p {:out :pipe :err :pipe}))
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(def out (ev/read (proc :out) 0x100000))
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(def err (ev/read (proc :err) 0x100000))
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[(os/proc-wait proc) (string/trim (if out (string out) "")) (string/trim (if err (string err) ""))])))
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# bare #"…" literal runs in plain subset mode (the :regex node needs no core fn).
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(each src ["#\"\\d+\"" "(do #\"a.c\")"]
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(let [[code out err] (d/run-on-chez ctx src) want (cli-oracle src)]
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(ok (string "regex literal: " src) (and (= code 0) (= out want))
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(string "chez=" out " janet=" want " | " err))))
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# re-* surface via prelude mode (def-var!'d fns), parity vs the CLI oracle.
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(each src ["(re-matches #\"\\d+\" \"123\")"
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"(re-matches #\"\\d+\" \"12a\")"
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"(re-find #\"\\d+\" \"abc123def\")"
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"(re-find #\"([a-z])(\\d)\" \"--a1--\")"
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"(re-seq #\"\\d+\" \"a1b22c333\")"
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"(regex? #\"\\d+\")"
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"(re-matches #\"[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}\" \"550e8400-e29b-41d4-a716-446655440000\")"]
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(let [[code out err] (run-prelude src) want (cli-oracle src)]
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(ok (string "regex: " src) (and (= code 0) (= out want))
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(string "chez=" out " janet=" want " | " err))))
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# 3h) prelude mode (inc 3d): emitting clojure.core ITSELF, a core->core ref must
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# lower to a runtime var-deref instead of being rejected as "out of subset".
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# `frequencies` is a core fn but not a native-op, so it exercises the switch.
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(let [ir (backend/analyze-form ctx (in (r/parse-next "(fn [x] (frequencies x))") 0))]
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# subset mode (the default): a non-native core ref is rejected at emit time.
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(ok "prelude: subset mode rejects non-native core ref"
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(let [r (protect (emit/emit ir))] (not (r 0))))
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# prelude mode: the same ref lowers to (var-deref "clojure.core" "frequencies").
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(emit/set-prelude-mode! true)
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(def scm (protect (emit/emit ir)))
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|
(emit/set-prelude-mode! false)
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|
(ok "prelude: mode lowers non-native core ref to var-deref"
|
|
(and (scm 0)
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|
(string/find "var-deref" (scm 1))
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(string/find "frequencies" (scm 1)))
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|
(string/format "%p" scm)))
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# 4) perf signal: emitted fib(30) in-Scheme timing (excludes Chez startup), to
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# track against the spike ceiling (hand-Scheme fib ~5ms). Informational — the
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# jolt-truthy? wrapper (~3x) and flonum modeling are known Phase-4 levers.
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|
(let [fib-ir (backend/analyze-form ctx (in (r/parse-next "(defn fib [n] (if (< n 2) n (+ (fib (- n 1)) (fib (- n 2)))))") 0))
|
|
fib-scm (emit/emit fib-ir)
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|
timed (string "(import (chezscheme))\n(load \"host/chez/rt.ss\")\n"
|
|
fib-scm "\n"
|
|
"(define fib (var-deref \"user\" \"fib\"))\n"
|
|
"(define (now-ns) (let ((t (current-time 'time-monotonic))) (+ (* (time-second t) 1000000000) (time-nanosecond t))))\n"
|
|
"(fib 24)(fib 24)\n"
|
|
"(let* ((t0 (now-ns)) (r (fib 30)) (ms (/ (- (now-ns) t0) 1000000.0)))\n"
|
|
" (printf \"~a ~a\\n\" (jolt-pr-str r) (exact->inexact ms)))")]
|
|
(spit "/tmp/chez-jolt-fib-timed.ss" timed)
|
|
(def proc (os/spawn ["chez" "--script" "/tmp/chez-jolt-fib-timed.ss"] :p {:out :pipe :err :pipe}))
|
|
(def out (string/trim (string (ev/read (proc :out) 0x100000))))
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|
(def err (string/trim (string (or (ev/read (proc :err) 0x100000) ""))))
|
|
(def code (os/proc-wait proc))
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|
(def parts (string/split " " out))
|
|
(def result (get parts 0))
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|
(def ms (scan-number (or (get parts 1) "999")))
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|
(ok "timed fib(30) correct" (and (= code 0) (= result "832040")) (string out " | " err))
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|
(printf " emitted fib(30): %s in %.2f ms (hand-Scheme spike ~5ms)" result ms))
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|
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|
(printf "\nemit-test: %d/%d passed" (- total fails) total)
|
|
(os/exit (if (> fails 0) 1 0))
|