jolt/test/chez/_class.janet
Yogthos 3319684a38 Chez Phase 2 (inc T): class native + bare class-token resolution (jolt-13zk)
Bare class names (String, Keyword, File...) evaluate to their JVM
canonical-name string, the same value (class x) returns, so
(= String (class "x")) holds and (defmethod m String ...) keys match a
(class ...) dispatch. New host/chez/host-class.ss ports
eval_resolve.janet's class-canonical-names + core_refs.janet's core-class
(scalar arms; collections/seqs are host-taxonomy-dependent and not class-
compared in the corpus).

The analyzer already resolves these names to clojure.core vars (the seed
ctx interns them via setup-class-ctors), so the back end emits
(var-deref "clojure.core" "String") and a runtime def-var! is all that's
needed -- no analyzer change, Janet path untouched. The class native MUST
land together with token resolution: alone it turns the bare-token corpus
cases (562/564) into divergences (this bit last session).

Parity 2154 -> 2163 (cases 560/562/563/564/2500-2503), 0 new divergences.
New test/chez/_class.janet 19/19.
2026-06-19 08:41:45 -04:00

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3.1 KiB
Text

# jolt-13zk — bare class-name tokens + (class x) on Chez. A class name (String,
# Keyword, File...) evaluates to its JVM canonical-name STRING — the same value
# (class instance) returns — so (= String (class "x")) holds and a (defmethod m
# String ...) keys against a (class ...) dispatch. host-class.ss ports
# src/jolt/eval_resolve.janet's class-canonical-names + core-class (scalar arms).
# Oracle = build/jolt. Collection (class ...) is host-taxonomy-dependent (the seed
# leaks the Janet host type "table"/"struct") and is NOT compared here.
#
# janet test/chez/_class.janet
(def jolt-bin (or (os/getenv "JOLT_BIN") "bin/jolt-chez"))
(def cases
[# --- bare class tokens evaluate to canonical strings ---
["String" "java.lang.String"]
["Number" "java.lang.Number"]
["Keyword" "clojure.lang.Keyword"]
["File" "java.io.File"]
["Exception" "java.lang.Exception"]
["MapEntry" "clojure.lang.MapEntry"]
# --- (class x) on scalars matches core-class ---
["(class 1)" "java.lang.Number"]
["(class 1.5)" "java.lang.Number"]
["(class \"s\")" "java.lang.String"]
["(class :k)" "clojure.lang.Keyword"]
["(class true)" "java.lang.Boolean"]
["(class false)" "java.lang.Boolean"]
["(class nil)" ""]
# --- token <-> class equality ---
["(= String (class \"abc\"))" "true"]
["(= Number (class 7))" "true"]
["(= String (class 7))" "false"]
# --- defmulti dispatch on class ---
["(do (defmulti cm (fn [x] (class x))) (defmethod cm String [x] :str) (cm \"a\"))" ":str"]
["(do (defmulti cn (fn [x] (class x))) (defmethod cn nil [x] :nil) (defmethod cn String [x] :str) (cn nil))" ":nil"]
["(do (defmulti cn (fn [x] (class x))) (defmethod cn nil [x] :nil) (defmethod cn String [x] :str) (cn \"z\"))" ":str"]])
(defn run-capture [bin expr]
(def proc (os/spawn [bin "-e" expr] :p {:out :pipe :err :pipe}))
(def out (ev/read (proc :out) 0x100000))
(def err (ev/read (proc :err) 0x100000))
(def code (os/proc-wait proc))
(def lines (filter (fn [l] (not (empty? l)))
(string/split "\n" (string/trim (if out (string out) "")))))
[code (if (empty? lines) "" (last lines)) (string/trim (if err (string err) ""))])
(var pass 0)
(def fails @[])
(each [expr expected] cases
(def [ocode oracle _] (run-capture "build/jolt" expr))
(def [code got err] (run-capture jolt-bin expr))
(cond
(not= ocode 0) (array/push fails [expr (string "ORACLE FAILED exit " ocode)])
(not= oracle expected) (array/push fails [expr (string "ORACLE MISMATCH want `" expected "` got `" oracle "`")])
(not= code 0) (array/push fails [expr (string "exit " code "; err: " err)])
(= got expected) (++ pass)
(array/push fails [expr (string "want `" expected "`, got `" got "`")])))
(printf "\n_class parity [%s]: %d/%d passed" jolt-bin pass (length cases))
(when (> (length fails) 0)
(printf "%d FAIL(s):" (length fails))
(each [e m] fails (printf " FAIL %s\n %s" e m)))
(flush)
(os/exit (if (empty? fails) 0 1))