jolt/test/chez/_dotform.janet
Yogthos 9a273e71cd Move the Chez test oracle off Janet
The unit tests in test/chez/_*.janet now drive bin/joltc (the zero-Janet
spine) and judge against baked expected values instead of a live build/jolt
run. Ten of them captured the oracle from build/jolt per case; their values
are now literals (one env-dependent javastatic case became a predicate so it
stays portable). The rest already had literal expecteds with a redundant
build/jolt sanity check, now dropped.

Retire emit-test/emit-parity/reader-parity: they compared the Chez/Clojure
path against a live Janet evaluation, emitter, or reader. That migration check
is done, and run-corpus-zero-janet (Chez analyzer vs the JVM corpus) plus
certify.clj cover correctness now.

Rewrite the README for the current zero-Janet gate.

jolt-5oci
2026-06-21 09:48:49 -04:00

68 lines
3.2 KiB
Text

# jolt-kuic — the `.` special form + `.-field` field-access desugar on Chez. The
# analyzer lowers (. target member arg*) and (.-field target) to a :host-call;
# the Chez emit routes a non-shimmed :host-call through record-method-dispatch,
# which dot-forms.ss extends with field access + map/vector member dispatch.
# Each case carries its expected printed value.
#
# janet test/chez/_dotform.janet
(def jolt-bin (or (os/getenv "JOLT_BIN") "bin/joltc"))
(def cases
[# strings: method calls via the String surface
["(. \"HI\" toLowerCase)" "hi"]
["(. \"abc\" length)" "3"]
["(. \"abc\" toUpperCase)" "ABC"]
# vectors / maps: collection interop (count/nth/get/containsKey)
["(. [1 2 3] count)" "3"]
["(. [10 20 30] nth 1)" "20"]
["(. {:a 1 :b 2} count)" "2"]
["(. {:a 1 :b 2} get :b)" "2"]
["(. {:a 1} containsKey :a)" "true"]
["(. {:count 99} count)" "1"]
# map member: stored fn called with self (+ args), else field value
["(. {:value 41 :describe (fn [self] (str \"v=\" (:value self)))} describe)" "v=41"]
["(. {:greet (fn [self n] (str \"Hello \" n))} greet \"Alice\")" "Hello Alice"]
["(. {:value 41} value)" "41"]
# field access via .-field head
["(.-value {:value 41})" "41"]
["(.-x {:x 7 :y 9})" "7"]
# field access via (. obj -field)
["(. {:value 41} -value)" "41"]
# records: .-field reads a field, .method dispatches the protocol method
["(do (defrecord Rf [x]) (.-x (->Rf 7)))" "7"]
["(do (defrecord Rg [a b]) (.-b (->Rg 1 2)))" "2"]
["(do (defprotocol Greet (hi [_])) (defrecord Rh [nm] Greet (hi [_] (str \"hi \" nm))) (. (->Rh \"x\") hi))" "hi x"]
# universal object-methods on a non-record map win over a field lookup
["(try (throw (ex-info \"bad\" {})) (catch Throwable e (.getMessage e)))" "bad"]
["(try (throw (ex-info \"bad\" {:k 1})) (catch Throwable e (.getMessage e)))" "bad"]
["(try (throw \"boom\") (catch Throwable e (.getMessage e)))" "boom"]
["(try (throw (Exception. \"boom\")) (catch Throwable e (.getMessage e)))" "boom"]
["(try (throw (IllegalArgumentException. \"bad\")) (catch Exception e (.getMessage e)))" "bad"]
["(.equals \"a\" \"a\")" "true"]
["(.equals \"a\" \"b\")" "false"]
["(. {:value 41 :describe (fn [self] (str \"v=\" (:value self)))} describe)" "v=41"]])
(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 [code got err] (run-capture jolt-bin expr))
(cond
(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_dotform 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))