509c23f06d
The zero-Janet spine proves the on-Chez analyzer/emitter compile arbitrary Clojure faithfully. This proves the stronger property: the on-Chez compiler reproduces itself. emit-image.ss re-emits the compiler sources (jolt.ir + jolt.analyzer + jolt.backend-scheme) ON CHEZ via the loaded image; feeding it stage1 (the Janet cross-compile) yields stage2, feeding stage2 yields stage3. stage2 and stage3 are byte-for-byte identical, and stage2 is a working compiler (real cases compile+run through it). stage1 differs from stage2 only in gensym numbering, so the fixpoint is stage2==stage3. driver: emit-image-on-chez / program-emit-image spawn a fresh chez per stage (clean gensym state). test/chez/fixpoint-test.janet gates it (skips without chez).
582 lines
30 KiB
Text
582 lines
30 KiB
Text
# Phase 1 (jolt-cf1q.2) — live-analyzer -> Chez driver.
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#
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# Boots a real jolt ctx, runs the EXISTING Janet-hosted analyzer on actual
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# Clojure source to produce host-neutral IR, feeds that IR to the Scheme emitter
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# (emit.janet), and assembles a runnable Chez program. This is the Option-2
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# backend swap end to end: same front end, Scheme back end, run on Chez.
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#
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# Analysis still happens on Janet here (the analyzer is portable Clojure but not
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# yet bootstrapped onto Chez — that's Phase 2); EXECUTION happens on Chez. The
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# point of this increment is to validate that the real IR the analyzer emits
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# compiles to correct, fast Scheme.
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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 ../../src/jolt/evaluator :as evlr)
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(import ../../src/jolt/types_ctx :as tctx)
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(import ../../src/jolt/types_ns :as tns)
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(import ../../src/jolt/types_var :as tvar)
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(import ./emit :as emit)
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# Chez Phase 3 (jolt-duot): the IR->Scheme emitter is now the PORTABLE Clojure
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# jolt.backend-scheme (jolt-core), not emit.janet. It's loaded into the ctx and
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# called from here the same way the analyzer is. emit.janet stays only as the
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# program-string wrapper (emit/program) until program assembly ports to Clojure
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# with compile-from-source. This is the step that takes the emitter off Janet.
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(defn- ensure-clj-emitter [ctx]
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(def env (ctx :env))
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(unless (get env :clj-emit-fn)
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(def src (get (get env :embedded-sources @{}) "jolt.backend-scheme"))
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(assert src "jolt.backend-scheme not embedded (check stdlib_embed)")
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(backend/bootstrap-load-source ctx "jolt.backend-scheme" src)
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(def ns (tctx/ctx-find-ns ctx "jolt.backend-scheme"))
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(put env :clj-emit-fn (tvar/var-get (tns/ns-find ns "emit")))
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(put env :clj-set-prelude-fn (tvar/var-get (tns/ns-find ns "set-prelude-mode!"))))
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ctx)
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# Emit IR -> Scheme via the Clojure emitter (returns a Janet string).
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(defn- cemit [ctx ir] (string ((get (ctx :env) :clj-emit-fn) ir)))
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(defn- cset-prelude! [ctx on] ((get (ctx :env) :clj-set-prelude-fn) on))
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# Public: emit IR -> Scheme via the portable Clojure emitter (jolt.backend-scheme).
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# The single seam tests use so emit.janet's emit fn is no longer exercised.
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(defn scheme-emit [ctx ir] (ensure-clj-emitter ctx) (cemit ctx ir))
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(defn chez-available?
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"True when a `chez` binary is on PATH — lets the chez tests skip cleanly on
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hosts without it (CI without Chez), like the clojure-test-suite skips when its
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corpus dir is absent."
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[]
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(def r (protect (let [p (os/spawn ["chez" "--version"] :p {:out :pipe :err :pipe})]
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(ev/read (p :out) 1024)
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(ev/read (p :err) 1024)
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(os/proc-wait p))))
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(and (r 0) (zero? (r 1))))
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(defn make-ctx []
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"A compile-mode jolt ctx (the analyzer pipeline is only built under :compile?).
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Late-bind unresolved symbols: the Chez back end has no interpreter to punt to,
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so a forward reference to a runtime-interned var (defmulti/defmethod's setup
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call) lowers to a var-deref instead of failing to compile (jolt-9ls5)."
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(def ctx (api/init {:compile? true}))
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(put (get ctx :env) :late-bind-unresolved? true)
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(ensure-clj-emitter ctx)
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ctx)
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(defn- parse-all [src]
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(def out @[])
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(var s src)
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(while (> (length (string/trim s)) 0)
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(def parsed (r/parse-next s))
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(set s (in parsed 1))
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(def f (in parsed 0))
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(unless (nil? f) (array/push out f)))
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out)
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(defn compile-program
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"Compile a Clojure program string to a runnable Chez program. Every top-level
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form is analyzed to real IR and emitted to Scheme; all but the LAST form are
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treated as defs (also interned in the ctx so later forms resolve their vars),
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and the last form is the expression whose value the program prints."
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[ctx src]
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(ensure-clj-emitter ctx)
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(def forms (parse-all src))
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(assert (> (length forms) 0) "compile-program: empty program")
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(def n (length forms))
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(def def-scm @[])
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(for i 0 (- n 1)
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(def f (in forms i))
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# emit the def, then intern it (interpreted) so a later form's reference to
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# this var resolves to a :var node rather than an unresolved symbol.
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(array/push def-scm (cemit ctx (backend/analyze-form ctx f)))
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(evlr/eval-form ctx @{} f))
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(def final-scm (cemit ctx (backend/analyze-form ctx (in forms (- n 1)))))
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(emit/program def-scm final-scm))
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# Drain a pipe to EOF. A single (ev/read pipe N) can return BEFORE the child has
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# flushed everything — a program with a stdout side effect (newline/print) flushes
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# in two writes, and the first ev/read sometimes catches only the first chunk, so
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# the trailing real value is lost (intermittent gate divergence). Loop until EOF.
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(defn- drain [pipe]
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(def b @"")
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(var c (ev/read pipe 0x10000))
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(while c (buffer/push b c) (set c (ev/read pipe 0x10000)))
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(string b))
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(defn run-on-chez
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"Compile `src` and run it on Chez; returns [exit-code stdout stderr]."
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[ctx src &opt scheme-out]
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(def prog (compile-program ctx src))
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(def path (or scheme-out "/tmp/chez-jolt-prog.ss"))
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(spit path prog)
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(def proc (os/spawn ["chez" "--script" path] :p {:out :pipe :err :pipe}))
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(def out (drain (proc :out)))
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(def err (drain (proc :err)))
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(def code (os/proc-wait proc))
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[code (string/trim out) (string/trim err)])
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# --- clojure.core prelude assembly (jolt-9ziu) --------------------------------
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# The -e-capable jolt-chez path: emit EVERY non-macro clojure.core form across
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# the dependency-ordered tiers as a def-var! in prelude mode, concatenated into
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# a Scheme prelude loaded before the user expression. var-deref then resolves any
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# core fn at runtime from the prelude's own def-var! cells. Macros are skipped
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# (analyze-time only — the Janet analyzer expands them before emit, so they have
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# no runtime value). Each form is wrapped in a tolerant load guard so a form that
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# fails to LOAD (currently only the Phase-2 multimethod defmulti/defmethod
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# print-method forms) doesn't break the rest of the prelude; it logs to stderr
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# and becomes a lazy gap rather than a hard prelude failure.
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(def core-tier-files
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["00-syntax" "00-kernel" "10-seq" "20-coll" "25-sorted" "30-macros" "40-lazy" "50-io"])
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# stdlib namespaces (beyond clojure.core) emitted into the prelude as their own
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# def-var! tier. Each is pure Clojure over clojure.core + host natives, so the
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# same analyze->emit pipeline lowers it; an aliased ref resolves via var-deref at
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# runtime once the alias is registered (the driver pre-evals requires). jolt-nfca.
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(def stdlib-ns-files
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[["clojure.string" "src/jolt/clojure/string.clj"]
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["clojure.walk" "src/jolt/clojure/walk.clj"]
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# clojure.template requires clojure.walk (apply-template over postwalk-replace)
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# — must follow it so the alias resolves at emit time.
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["clojure.template" "src/jolt/clojure/template.clj"]
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# clojure.edn requires clojure.string; read-string/__read-tagged are the
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# reader.ss seams. The reader-arity's drain-reader is Janet-coupled (janet/type)
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# so it's a lazy gap on Chez — read-string/edn->value are the live path. jolt-r8ku.
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["clojure.edn" "src/jolt/clojure/edn.clj"]
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# clojure.set / clojure.pprint: pure Clojure over core. set = relational ops
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# (union/intersection/difference/join/index/...); pprint = the minimal jolt
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# shim (pprint -> prn + recognized dispatch vars, with-pprint-dispatch macro).
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# jolt-j5vg, clojure.pprint Phase-2 parity.
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["clojure.set" "src/jolt/clojure/set.clj"]
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["clojure.pprint" "src/jolt/clojure/pprint.clj"]])
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(defn- sym-name [x]
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(when (and (struct? x) (= :symbol (get x :jolt/type))) (get x :name)))
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(defn- macro-form? [f]
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(and (indexed? f) (> (length f) 0)
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(let [h (sym-name (in f 0))] (and h (or (= h "defmacro") (= h "definline"))))))
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# Extract [name-string fn-form] from (defmacro NAME ...rest): the macro's expander
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# as a bare (fn ...rest), docstring/attr-map stripped. Mirrors eval_special.janet/
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# eval-defmacro's parsing — bare name (no metadata on the name in core/stdlib),
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# optional docstring, optional attr-map, then a params vector + body (single arity)
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# OR arity clauses. Uses the `fn` MACRO (not fn*) so a destructured macro arglist
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# desugars before lowering, like api/macro-compile-hook.
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#
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# We emit the BARE fn (not (def NAME ...)) on purpose: analyzing a def would
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# host-intern! NAME in the Janet build ctx as a non-macro nil-root stub, and that
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# stub makes a later (require '[stdlib-ns]) skip loading the REAL macro — so the
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# Janet-hosted analyzer (the parity oracle) would treat e.g. with-pprint-dispatch
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# as a fn and return its unexpanded template. The caller wraps the emitted lambda
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# in def-var! manually, so NAME is never interned and require still works (jolt-r9lm).
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(defn- defmacro->fn [f]
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(def name-sym (in f 1))
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(def after-name (tuple/slice f 2))
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(def a1 (if (and (> (length after-name) 0) (string? (first after-name)))
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(tuple/slice after-name 1) after-name))
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(def after-meta (if (and (> (length a1) 0) (struct? (first a1))
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(not= :symbol (get (first a1) :jolt/type)))
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(tuple/slice a1 1) a1))
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(def fn-sym {:jolt/type :symbol :ns nil :name "fn"})
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[(sym-name name-sym) (array fn-sym ;after-meta)])
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# Cross-compile one top-level form to its guard-wrapped Scheme string, or nil if it
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# doesn't emit (out of subset). A defmacro emits as (def-var! ns name <expander fn>)
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# plus (mark-macro! ns name) so the on-Chez analyzer expands it (jolt-r9lm). The
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# caller handles ns forms (alias registration only) before calling this.
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(defn- emit-form-scheme [ctx ns-name f]
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(defn- jts [x] (string/format "%j" x))
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(if (macro-form? f)
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(let [[nm fn-form] (defmacro->fn f)]
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(when nm
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(def res (protect (cemit ctx (backend/analyze-form ctx fn-form))))
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(when (res 0)
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(string "(guard (e (#t #f))\n (def-var! " (jts ns-name) " " (jts nm) "\n "
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(res 1) ")\n (mark-macro! " (jts ns-name) " " (jts nm) "))"))))
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(let [res (protect (cemit ctx (backend/analyze-form ctx f)))]
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(when (res 0)
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(string "(guard (e (#t #f))\n " (res 1) ")")))))
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(defn- form-label [f]
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(if (and (indexed? f) (> (length f) 1))
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(let [h (or (sym-name (in f 0)) "?") n (sym-name (in f 1))] (if n (string h " " n) h))
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"?"))
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(defn- require-head? [f]
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(and (indexed? f) (> (length f) 0)
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(let [h (sym-name (in f 0))] (and h (or (= h "require") (= h "use"))))))
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(defn- scan-eval-requires! [ctx form]
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"Recursively eval any (require ...)/(use ...) sub-form against the ctx so the
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alias registers + the aliased ns loads BEFORE the AOT analyzer resolves its
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qualified refs — the whole user form is analyzed up front, before any require
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would run at eval time (jolt-nfca). Failures are swallowed (the ref then stays
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an emit-err, the prior behavior)."
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(when (indexed? form)
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(if (require-head? form)
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(protect (api/eval-one ctx form))
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(each sub form (scan-eval-requires! ctx sub)))))
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(defn emit-core-prelude
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"Assemble the clojure.core prelude as a Scheme string. `ctx` must be a
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compile-mode ctx; its current ns is set to clojure.core for the duration.
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Returns [scheme emitted total skipped-load-guards-unknown]; `scheme` is the
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joined, guard-wrapped def-var! forms (no rt.ss load — add that at program
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assembly via emit/program or program-with-prelude)."
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[ctx &opt core-dir]
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(default core-dir "jolt-core/clojure/core/")
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(ensure-clj-emitter ctx)
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(cset-prelude! ctx true)
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(def prev-ns (tctx/ctx-current-ns ctx))
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(tctx/ctx-set-current-ns ctx "clojure.core")
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(def out @[])
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(var total 0) (var emitted 0)
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(defn- emit-ns-forms [ns-name src]
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(tctx/create-ns ctx ns-name)
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(tctx/ctx-set-current-ns ctx ns-name)
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(each f (parse-all src)
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# Register any aliases this ns depends on before analyzing its forms, so an
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# aliased ref (e.g. clojure.template's walk/postwalk-replace) resolves at emit
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# time instead of lowering to an "Unknown class walk" host-static. The ns
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# form's :require is a keyword-headed clause that scan-eval-requires! (matching
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# the `require`/`use` symbol heads) doesn't catch, so eval the ns form whole.
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(def ns-form? (and (indexed? f) (> (length f) 0) (= "ns" (sym-name (in f 0)))))
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(if ns-form? (protect (api/eval-one ctx f)) (scan-eval-requires! ctx f))
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# Skip emitting ns forms: their only role here is alias registration, and a
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# runtime ns-switch would leak into the prelude's trailing *ns* (the def-var!s
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# already carry explicit ns names). Macros ARE emitted now (jolt-r9lm): each
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# defmacro becomes a def of its expander fn + (mark-macro! ns name) so the
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# on-Chez analyzer (inc6b) can expand it — previously skipped (the Janet
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# analyzer expanded them at analyze time, before they reached the prelude).
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# Tolerant load guard (inside emit-form-scheme): a form that fails to LOAD
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# (the 8 Phase-2 multimethod print-method forms in 50-io) is swallowed so it
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# doesn't break the rest of the prelude — it becomes a lazy gap.
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(unless ns-form?
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(++ total)
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(def scm (emit-form-scheme ctx ns-name f))
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(when scm (++ emitted) (array/push out scm)))))
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(each tf core-tier-files
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(emit-ns-forms "clojure.core" (slurp (string core-dir tf ".clj"))))
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# stdlib namespaces beyond clojure.core that are pure Clojure over core/host
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# natives — emitted as their own def-var! tier so an aliased ref (e.g. s/split
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# after (require '[clojure.string :as s])) resolves at runtime (jolt-nfca).
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(each [ns-name path] stdlib-ns-files
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(emit-ns-forms ns-name (slurp path)))
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(tctx/ctx-set-current-ns ctx prev-ns)
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(cset-prelude! ctx false)
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[(string/join out "\n") emitted total])
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# --- analyzer/emitter cross-compile (jolt-hs9n, the zero-Janet spine) ---------
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# Phase 3 inc6: cross-compile the PORTABLE compiler (jolt.ir + jolt.analyzer +
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# jolt.backend-scheme) to Scheme def-var! forms so analyze->IR->emit runs ON CHEZ.
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# Same emit pipeline as the core prelude, but for jolt-core/jolt/* namespaces
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# rather than clojure.core: jolt.* refs lower to var-deref (the prelude-mode gate
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# only rejects clojure.* refs), clojure.core refs resolve from the loaded prelude,
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# and the jolt.host form-*/resolve-global/... refs resolve from host-contract.ss.
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(defn- emit-ns-forms-list
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"Cross-compile one namespace's source to a list of guard-wrapped def-var! Scheme
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strings (prelude mode must already be ON). Registers the ns' requires/aliases in
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ctx first so cross-ns refs resolve at emit time; skips ns + macro forms (macros
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are analyze-time only, already expanded at their use sites)."
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[ctx ns-name src]
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(tctx/create-ns ctx ns-name)
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(tctx/ctx-set-current-ns ctx ns-name)
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(def out @[])
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(each f (parse-all src)
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(def ns-form? (and (indexed? f) (> (length f) 0) (= "ns" (sym-name (in f 0)))))
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(if ns-form? (protect (api/eval-one ctx f)) (scan-eval-requires! ctx f))
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# The compiler namespaces define no macros, but route through the shared helper
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# anyway (a defmacro would emit as a def + mark-macro!, jolt-r9lm).
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(unless ns-form?
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(def scm (emit-form-scheme ctx ns-name f))
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(when scm (array/push out scm))))
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out)
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(def compiler-ns-files
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[["jolt.ir" "jolt-core/jolt/ir.clj"]
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["jolt.analyzer" "jolt-core/jolt/analyzer.clj"]
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["jolt.backend-scheme" "jolt-core/jolt/backend_scheme.clj"]])
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(defn emit-compiler-image
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"Cross-compile the analyzer pipeline (jolt.ir + jolt.analyzer +
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jolt.backend-scheme) to a Scheme string of prelude-mode def-var! forms — the
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analyze->IR->emit spine running ON CHEZ (jolt-hs9n). Load AFTER rt.ss +
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host-contract.ss + the core prelude. Returns [scheme total]."
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[ctx]
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(ensure-clj-emitter ctx)
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# ensure-analyzer is lazy; a trivial analyze builds jolt.ir/jolt.analyzer/
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# jolt.passes in the Janet ctx so their vars resolve while we emit their source.
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(protect (backend/analyze-form ctx (in (r/parse-next "nil") 0)))
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(cset-prelude! ctx true)
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(def prev-ns (tctx/ctx-current-ns ctx))
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(def out @[])
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(each [ns-name path] compiler-ns-files
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(array/concat out (emit-ns-forms-list ctx ns-name (slurp path))))
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(tctx/ctx-set-current-ns ctx prev-ns)
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(cset-prelude! ctx false)
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[(string/join out "\n") (length out)])
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(defn ensure-compiler-image
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"Build (once) and return the path to the cross-compiled compiler image — the
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jolt.ir/jolt.analyzer/jolt.backend-scheme def-var! forms (jolt-hs9n). Cached on
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disk keyed by the same fingerprint scheme as the prelude; pass an explicit path
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to control caching from the test harness."
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[ctx path]
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(unless (os/stat path)
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(def [img _] (emit-compiler-image ctx))
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(spit path img))
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path)
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(defn program-zero-janet
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"Assemble a fully self-hosted Chez program: rt.ss + the core prelude +
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host-contract.ss + the cross-compiled compiler image + compile-eval.ss, then
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compile AND eval `src` ON CHEZ (read->analyze->emit->eval, no Janet). The
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zero-Janet spine (jolt-hs9n)."
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[prelude-path image-path src ns]
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(string
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"(import (chezscheme))\n"
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"(load \"host/chez/rt.ss\")\n"
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"(set-chez-ns! \"clojure.core\")\n"
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"(load " (string/format "%j" prelude-path) ")\n"
|
|
"(load \"host/chez/post-prelude.ss\")\n"
|
|
"(set-chez-ns! \"user\")\n"
|
|
"(load \"host/chez/host-contract.ss\")\n"
|
|
"(load " (string/format "%j" image-path) ")\n"
|
|
"(load \"host/chez/compile-eval.ss\")\n"
|
|
"(printf \"~a\\n\" (jolt-final-str (jolt-compile-eval "
|
|
(string/format "%j" src) " " (string/format "%j" ns) ")))\n"))
|
|
|
|
(defn eval-zero-janet
|
|
"Compile+run `src` through the ON-CHEZ analyzer/emitter (zero Janet). Needs a
|
|
prebuilt core prelude (`prelude-path`) and compiler image (`image-path`).
|
|
Returns [code stdout stderr]."
|
|
[prelude-path image-path src &opt ns scheme-out]
|
|
(default ns "user")
|
|
(def prog (program-zero-janet prelude-path image-path src ns))
|
|
(def path (or scheme-out (string "/tmp/jolt-zero-janet-" (os/getpid) ".ss")))
|
|
(spit path prog)
|
|
(def proc (os/spawn ["chez" "--script" path] :p {:out :pipe :err :pipe}))
|
|
(def out (drain (proc :out)))
|
|
(def err (drain (proc :err)))
|
|
(def code (os/proc-wait proc))
|
|
[code (string/trim out) (string/trim err)])
|
|
|
|
# --- self-hosting fixpoint (jolt-cf1q.4 inc8) ---------------------------------
|
|
# emit-compiler-image (above) builds stage1: the Janet analyzer/emitter
|
|
# cross-compiles the compiler sources to a Scheme def-var! image. To prove the
|
|
# ON-CHEZ compiler reproduces itself we recompile the SAME sources WITH the loaded
|
|
# image (emit-image.ss's jolt-emit-image runs analyze->emit on Chez): feeding it
|
|
# stage1 yields stage2, feeding it stage2 yields stage3, and stage2 == stage3
|
|
# byte-for-byte is the fixpoint (self-hosting-bootstrap-research §4).
|
|
|
|
(defn program-emit-image
|
|
"A Chez program that loads the zero-Janet runtime + the compiler `image-path`,
|
|
then re-emits the compiler image ON CHEZ (jolt-emit-image) and writes it to
|
|
`out-path`. Running this with image = stageN produces stage(N+1)."
|
|
[prelude-path image-path out-path]
|
|
(string
|
|
"(import (chezscheme))\n"
|
|
"(load \"host/chez/rt.ss\")\n"
|
|
"(set-chez-ns! \"clojure.core\")\n"
|
|
"(load " (string/format "%j" prelude-path) ")\n"
|
|
"(load \"host/chez/post-prelude.ss\")\n"
|
|
"(set-chez-ns! \"user\")\n"
|
|
"(load \"host/chez/host-contract.ss\")\n"
|
|
"(load " (string/format "%j" image-path) ")\n"
|
|
"(load \"host/chez/compile-eval.ss\")\n"
|
|
"(load \"host/chez/emit-image.ss\")\n"
|
|
"(let ((p (open-output-file " (string/format "%j" out-path) " 'replace)))\n"
|
|
" (put-string p (jolt-emit-image)) (close-port p))\n"))
|
|
|
|
(defn emit-image-on-chez
|
|
"Re-emit the compiler image on Chez: load `image-path` (stageN) and write the
|
|
re-emitted image (stage N+1) to `out-path`. Each runs in a fresh chez process so
|
|
gensym/state start clean (essential for a byte-stable fixpoint). Returns
|
|
[code stderr]."
|
|
[prelude-path image-path out-path]
|
|
(def prog (program-emit-image prelude-path image-path out-path))
|
|
(def path (string "/tmp/jolt-emit-image-" (os/getpid) "-" (hash out-path) ".ss"))
|
|
(spit path prog)
|
|
(def proc (os/spawn ["chez" "--script" path] :p {:out :pipe :err :pipe}))
|
|
(def out (drain (proc :out)))
|
|
(def err (drain (proc :err)))
|
|
(def code (os/proc-wait proc))
|
|
[code (string/trim (string out err))])
|
|
|
|
# --- batched zero-Janet corpus runner (jolt-qjr0, inc7) -----------------------
|
|
# eval-zero-janet spawns a fresh chez per case, each reloading rt.ss + the prelude
|
|
# (~282KB) + the compiler image (~89KB) from source — ~0.5s of pure reload per
|
|
# case, the entire cost. This runs ALL cases in ONE chez process: load the runtime
|
|
# once, then loop. Each case is guarded (errors isolated) and the user namespace is
|
|
# reset between cases (var-table keys added by a case are removed, *ns* restored) so
|
|
# there is no state leakage vs the per-process path. ~10-30x faster.
|
|
|
|
(defn program-corpus-zero-janet
|
|
"A Chez program that loads the zero-Janet runtime once, then runs every case in
|
|
`cases-tsv` (label<TAB>src per line) through jolt-compile-eval, printing one
|
|
result line per case: PASS<TAB>label | DIVERGE<TAB>label<TAB>value |
|
|
CRASH<TAB>label<TAB>message."
|
|
[prelude-path image-path cases-tsv]
|
|
(string
|
|
"(import (chezscheme))\n"
|
|
"(load \"host/chez/rt.ss\")\n"
|
|
"(set-chez-ns! \"clojure.core\")\n"
|
|
"(load " (string/format "%j" prelude-path) ")\n"
|
|
"(load \"host/chez/post-prelude.ss\")\n"
|
|
"(set-chez-ns! \"user\")\n"
|
|
"(load \"host/chez/host-contract.ss\")\n"
|
|
"(load " (string/format "%j" image-path) ")\n"
|
|
"(load \"host/chez/compile-eval.ss\")\n"
|
|
# Snapshot mutable global state after setup so each case sees a clean world (as
|
|
# if it ran in its own process): (1) var-table keys a case ADDS (its defs) are
|
|
# removed; (2) a base cell whose ROOT a case mutated (e.g. in-ns rebinds
|
|
# clojure.core/*ns*) is restored; (3) the ns + type registries are pruned back to
|
|
# their base keys. Without this, *ns*/find-ns/all-ns/satisfies? leak across cases.
|
|
"(define zj-base (let ((h (make-hashtable string-hash string=?)))\n"
|
|
" (vector-for-each (lambda (k) (hashtable-set! h k #t)) (hashtable-keys var-table)) h))\n"
|
|
"(define zj-roots '())\n"
|
|
"(vector-for-each (lambda (k) (let ((c (hashtable-ref var-table k #f)))\n"
|
|
" (when c (set! zj-roots (cons (cons c (var-cell-root c)) zj-roots)))))\n"
|
|
" (hashtable-keys var-table))\n"
|
|
"(define (zj-snap ht) (let ((h (make-hashtable string-hash string=?)))\n"
|
|
" (vector-for-each (lambda (k) (hashtable-set! h k #t)) (hashtable-keys ht)) h))\n"
|
|
"(define (zj-prune! ht base) (vector-for-each\n"
|
|
" (lambda (k) (unless (hashtable-ref base k #f) (hashtable-delete! ht k))) (hashtable-keys ht)))\n"
|
|
"(define zj-ns-base (zj-snap ns-registry))\n"
|
|
"(define zj-type-base (zj-snap type-registry))\n"
|
|
# global-hierarchy is a core atom whose CONTENTS `derive` mutates (its var root
|
|
# stays the same atom object, so the root-restore above misses it). Reset its
|
|
# contents to a fresh hierarchy each case.
|
|
"(define zj-ghier (var-cell-lookup \"clojure.core\" \"global-hierarchy\"))\n"
|
|
"(define (zj-reset!)\n"
|
|
" (vector-for-each (lambda (k) (unless (hashtable-ref zj-base k #f) (hashtable-delete! var-table k)))\n"
|
|
" (hashtable-keys var-table))\n"
|
|
" (for-each (lambda (cr) (unless (eq? (var-cell-root (car cr)) (cdr cr))\n"
|
|
" (var-cell-root-set! (car cr) (cdr cr)))) zj-roots)\n"
|
|
" (zj-prune! ns-registry zj-ns-base)\n"
|
|
" (zj-prune! type-registry zj-type-base)\n"
|
|
" (hashtable-clear! ns-alias-table)\n"
|
|
" (hashtable-clear! ns-refer-table)\n"
|
|
" (when zj-ghier (jolt-invoke (var-deref \"clojure.core\" \"reset!\")\n"
|
|
" (var-cell-root zj-ghier) (jolt-invoke (var-deref \"clojure.core\" \"make-hierarchy\"))))\n"
|
|
" (set-chez-ns! \"user\"))\n"
|
|
"(define kw-message (keyword #f \"message\"))\n"
|
|
"(define (zj-err->str e)\n"
|
|
" (cond ((and (pmap? e) (string? (jolt-get e kw-message))) (jolt-get e kw-message))\n"
|
|
" ((condition? e) (call-with-string-output-port (lambda (p) (display-condition e p))))\n"
|
|
" ((string? e) e)\n"
|
|
" (else (call-with-string-output-port (lambda (p) (write e p))))))\n"
|
|
"(define (zj-clean s)\n" # strip tabs/newlines from a message so it stays one TSV line
|
|
" (list->string (map (lambda (c) (if (or (char=? c #\\tab) (char=? c #\\newline)) #\\space c))\n"
|
|
" (string->list s))))\n"
|
|
# cases are stored one-per-line with \\n / \\t / \\\\ escaped (a source may be
|
|
# multi-line — e.g. a ;comment\\n inside a map literal); unescape before eval.
|
|
"(define (zj-unescape s)\n"
|
|
" (let ((out (open-output-string)) (n (string-length s)))\n"
|
|
" (let loop ((i 0))\n"
|
|
" (if (>= i n) (get-output-string out)\n"
|
|
" (let ((c (string-ref s i)))\n"
|
|
" (if (and (char=? c #\\\\) (< (+ i 1) n))\n"
|
|
" (let ((d (string-ref s (+ i 1))))\n"
|
|
" (write-char (cond ((char=? d #\\n) #\\newline) ((char=? d #\\t) #\\tab) (else d)) out)\n"
|
|
" (loop (+ i 2)))\n"
|
|
" (begin (write-char c out) (loop (+ i 1)))))))))\n"
|
|
"(define (zj-run label esrc)\n"
|
|
" (define src (zj-unescape esrc))\n"
|
|
" (guard (e (#t (printf \"CRASH\\t~a\\t~a\\n\" label (zj-clean (zj-err->str e)))))\n"
|
|
" (let ((v (jolt-compile-eval src \"user\")))\n"
|
|
" (if (string=? (jolt-final-str v) \"true\")\n"
|
|
" (printf \"PASS\\t~a\\n\" label)\n"
|
|
" (printf \"DIVERGE\\t~a\\t~a\\n\" label (zj-clean (jolt-final-str v))))))\n"
|
|
" (zj-reset!))\n"
|
|
"(let ((p (open-input-file " (string/format "%j" cases-tsv) ")))\n"
|
|
" (let loop ()\n"
|
|
" (let ((line (get-line p)))\n"
|
|
" (unless (eof-object? line)\n"
|
|
" (let find ((i 0))\n"
|
|
" (cond ((>= i (string-length line)) #f)\n"
|
|
" ((char=? (string-ref line i) #\\tab)\n"
|
|
" (zj-run (substring line 0 i) (substring line (+ i 1) (string-length line))))\n"
|
|
" (else (find (+ i 1)))))\n"
|
|
" (loop)))))\n"))
|
|
|
|
(defn eval-corpus-zero-janet
|
|
"Run all `cases` ([label src] pairs) through the ON-CHEZ analyzer in ONE chez
|
|
process. Returns a struct mapping label -> [:pass] | [:diverge value] |
|
|
[:crash message]. Vastly faster than per-case eval-zero-janet (single runtime
|
|
load); use eval-zero-janet to isolate a single case for debugging."
|
|
[prelude-path image-path cases &opt scheme-out cases-out]
|
|
(def tsv-path (or cases-out (string "/tmp/jolt-zj-cases-" (os/getpid) ".tsv")))
|
|
(def buf @"")
|
|
# escape so each case is one TSV line even if its source is multi-line; the
|
|
# runner's zj-unescape reverses it. Backslash first, then newline/tab.
|
|
(defn- tsv-esc [s]
|
|
(->> s (string/replace-all "\\" "\\\\") (string/replace-all "\n" "\\n")
|
|
(string/replace-all "\t" "\\t")))
|
|
(each [label src] cases (buffer/push buf label "\t" (tsv-esc src) "\n"))
|
|
(spit tsv-path buf)
|
|
(def prog (program-corpus-zero-janet prelude-path image-path tsv-path))
|
|
(def path (or scheme-out (string "/tmp/jolt-zj-runner-" (os/getpid) ".ss")))
|
|
(spit path prog)
|
|
(def proc (os/spawn ["chez" "--script" path] :p {:out :pipe :err :pipe}))
|
|
(def out (drain (proc :out)))
|
|
(def err (drain (proc :err)))
|
|
(def code (os/proc-wait proc))
|
|
(def res @{})
|
|
(each line (string/split "\n" (string/trim out))
|
|
(when (> (length line) 0)
|
|
(def parts (string/split "\t" line))
|
|
(def status (in parts 0))
|
|
(def label (get parts 1 ""))
|
|
(cond
|
|
(= status "PASS") (put res label [:pass])
|
|
(= status "DIVERGE") (put res label [:diverge (get parts 2 "")])
|
|
(= status "CRASH") (put res label [:crash (get parts 2 "")]))))
|
|
# If chez died mid-run (e.g. an uncatchable error), surface what we have + stderr.
|
|
{:results res :code code :stderr (string/trim err) :count (length res)})
|
|
|
|
(defn program-with-prelude
|
|
"Assemble a runnable Chez program that loads rt.ss, loads the assembled core
|
|
prelude from `prelude-path` (a file written once), then prints `final-scm`."
|
|
[prelude-path final-scm]
|
|
(string
|
|
"(import (chezscheme))\n"
|
|
"(load \"host/chez/rt.ss\")\n"
|
|
# the prelude's defmultis (print-method/print-dup) must land in clojure.core,
|
|
# not the default user ns (jolt-9ls5); set the multimethod current-ns around
|
|
# the prelude load, then restore it to user for the program form.
|
|
"(set-chez-ns! \"clojure.core\")\n"
|
|
"(load " (string/format "%j" prelude-path) ")\n"
|
|
# native-wins overrides for overlay predicates that read :jolt/type (char?,
|
|
# atom?) — must load AFTER the prelude's own def-var! to take effect.
|
|
"(load \"host/chez/post-prelude.ss\")\n"
|
|
"(set-chez-ns! \"user\")\n"
|
|
"(printf \"~a\\n\" (jolt-final-str " final-scm "))\n"))
|
|
|
|
(defn eval-e-with-prelude
|
|
"Run a single user expression `src` on Chez with the full clojure.core prelude
|
|
(loaded from `prelude-path`). Emits `src` in prelude mode so any core ref
|
|
resolves via var-deref. Returns [code stdout stderr], or [:emit-err msg \"\"]
|
|
if the user form itself can't be emitted."
|
|
[ctx src prelude-path &opt scheme-out]
|
|
(ensure-clj-emitter ctx)
|
|
(cset-prelude! ctx true)
|
|
(def form (in (r/parse-next src) 0))
|
|
(scan-eval-requires! ctx form)
|
|
(def res (protect (cemit ctx (backend/analyze-form ctx form))))
|
|
(cset-prelude! ctx false)
|
|
(if (not (res 0))
|
|
[:emit-err (string (res 1)) ""]
|
|
(let [prog (program-with-prelude prelude-path (res 1))
|
|
# PID-unique default so concurrent processes (a foreground -e while the
|
|
# parity gate runs) never read each other's half-written program file.
|
|
path (or scheme-out (string "/tmp/jolt-chez-e-" (os/getpid) ".ss"))]
|
|
(spit path prog)
|
|
(def proc (os/spawn ["chez" "--script" path] :p {:out :pipe :err :pipe}))
|
|
(def out (drain (proc :out)))
|
|
(def err (drain (proc :err)))
|
|
(def code (os/proc-wait proc))
|
|
[code (string/trim out) (string/trim err)])))
|