c90c4cb610
Lower host class interop on the Chez back end. The analyzer now turns a non-var qualified ref `Class/member` into a :host-static node and a `(Class. ...)` / `(new Class ...)` form into a :host-new node (ir.clj gains both, with walker support). The Janet back end punts both to the interpreter, so its behavior is unchanged (verified: dot-form, `..` threading, shadowed `new`, and all interop still resolve via fallback). The Chez emit lowers a value ref to host-static-ref, a call head to host-static-call, and a constructor to host-new. host/chez/host-static.ss is the runtime registry these resolve against — the Chez port of the seed's class-statics / class-ctors / tagged-methods (java_base.janet + host_io.janet), restricted to the java.lang/util/net/io surface portable cljc code calls: Math, System (getenv/getProperty/exit/currentTimeMillis), Long, Integer, Boolean, Character, String, Thread, Class, Pattern (compile/quote/MULTILINE), URLEncoder/Decoder, Base64, the Number method surface (byteValue/intValue/...), plus the StringBuilder, StringWriter, StringReader, PushbackReader, HashMap, StringTokenizer, BigInteger, String, MapEntry, and exception constructors. Constructed objects are jhost records dispatched through record-method-dispatch. Also: emit now evaluates collection-literal elements left-to-right (emit-ordered) — Chez evaluates call args right-to-left, which had been swapping side-effecting elements in [(read r) (read r)] and map literals. This un-allowlisted the 6 eval-order corpus cases (the read-line trio + the three map-construction cases). Removed `.write` from the jolt-host-call fast-path so a StringWriter routes through dispatch. java.time formatting, edn/read-over-readers, and slurp/with-open over readers are deferred to a follow-up. Corpus parity 2078 -> 2134 (floor raised), 0 new divergences; the print-method builtin-override case is allowlisted (same multimethod gap, newly reachable now that StringWriter constructs). emit-test 326/326, _javastatic 51/51, conformance 355x3, full jpm test green.
56 lines
2.5 KiB
Text
56 lines
2.5 KiB
Text
# -e-capable jolt-chez (jolt-9ziu): the Option-2 back end as a runnable CLI.
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#
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# Analysis runs on Janet (the portable analyzer); EXECUTION runs on Chez with the
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# full clojure.core assembled as a Scheme prelude (driver/emit-core-prelude). The
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# prelude is assembled once and cached on disk keyed by a fingerprint of the core
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# sources + the Chez RT/emitter, so repeated invocations (e.g. the run-corpus.janet
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# gate, one subprocess per case) reuse it.
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#
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# Usage (the run-corpus.janet boundary): jolt-chez -e "EXPR"
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# Run from the repo root (the prelude loads host/chez/rt.ss by relative path).
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(import ../../src/jolt/api :as api)
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(import ./driver :as d)
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(defn- fingerprint []
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# Hash the inputs that shape the prelude: the core tiers + the emitter + the
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# Chez RT shims. Any change invalidates the cached prelude.
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(def parts @[])
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(each tf d/core-tier-files
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(array/push parts (slurp (string "jolt-core/clojure/core/" tf ".clj"))))
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(each f ["host/chez/emit.janet" "host/chez/driver.janet" "host/chez/rt.ss"
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"host/chez/values.ss" "host/chez/collections.ss" "host/chez/seq.ss"
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"host/chez/atoms.ss" "host/chez/predicates.ss" "host/chez/regex.ss"
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"host/chez/ns.ss" "host/chez/post-prelude.ss" "host/chez/natives-meta.ss"
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"host/chez/natives-str.ss" "host/chez/records.ss"
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"host/chez/host-static.ss"
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"src/jolt/clojure/string.clj"]
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(array/push parts (slurp f)))
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(string/slice (string (hash (string/join parts))) 0))
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(defn- ensure-prelude [ctx]
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(def dir (or (os/getenv "JOLT_IMAGE_CACHE_DIR") (os/getenv "TMPDIR") "/tmp"))
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(def path (string dir "/jolt-chez-prelude-" (fingerprint) ".ss"))
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(unless (os/stat path)
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(def [scm _ _] (d/emit-core-prelude ctx))
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(spit path scm))
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path)
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(defn main [& argv]
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# argv: [script "-e" EXPR]
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(def args (drop 1 argv))
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(unless (and (= (length args) 2) (= (first args) "-e"))
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(eprint "usage: jolt-chez -e EXPR")
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(os/exit 2))
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(def src (in args 1))
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(def ctx (api/init-cached {:compile? true}))
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# late-bind unresolved symbols (no interpreter to punt to) so defmulti/defmethod
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# forward references lower to a var-deref (jolt-9ls5), matching d/make-ctx.
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(put (get ctx :env) :late-bind-unresolved? true)
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(def prelude-path (ensure-prelude ctx))
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(def [code out err] (d/eval-e-with-prelude ctx src prelude-path))
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(when (= code :emit-err)
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(eprint "jolt-chez: cannot compile: " out)
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(os/exit 1))
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(unless (= "" out) (print out))
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(unless (= "" err) (eprint err))
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(os/exit code))
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