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jolt/test/chez
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Yogthos c91b6092bc ffi: foreign-callable — receive callbacks from C 
jolt could call C (foreign-fn -> foreign-procedure) but C could not call back
into jolt, which GTK signals (and any callback-taking C API) require. Add the
inverse: jolt.ffi/foreign-callable wraps a jolt fn as a C-callable function
pointer, mirroring the foreign-fn pipeline.

A new jolt.ffi/__ccallable special form carries the fn as a child expression
(analyzed + walked by the passes; ir.clj gains an :ffi-callable arm in both
child walks) plus literal arg/ret type keywords. The back end lowers it to a
locked Chez foreign-callable and returns its entry-point address as a jolt
pointer; host/chez/ffi.ss registers the code object so the collector keeps it,
and free-callable unlocks it. :collect-safe emits the convention that
reactivates the thread on entry, for callbacks fired while it is parked in a
:blocking call (a GTK main loop).

Test: ffi-binding-test.ss sorts an int array through libc qsort with a jolt
comparator (C -> jolt -> C). Re-minted seed.
2026-06-23 09:55:17 -04:00
..
build-app jolt build: compile an app to a standalone binary (Phase 4 stages 1-2) 2026-06-22 23:01:36 -04:00
bench-chez.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
corpus.edn Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
ffi-binding-test.ss ffi: foreign-callable — receive callbacks from C 2026-06-23 09:55:17 -04:00
README.md Docs: Chez-only, drop the Janet-era references and obsolete migration notes 2026-06-22 09:05:35 -04:00
transient-test.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
unit.edn Real Thread/yield + Thread/interrupted (jolt-l2gc) 2026-06-23 00:06:04 -04:00
values-test.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00

README.md

Chez test harness

The correctness gate for jolt. Pure Chez (+ Clojure for the JVM oracle). Correctness is judged against the JVM-sourced conformance spec; the spec itself lives in test/conformance/ (see its SPEC.md). Run the whole gate with make test from the repo root.

The spec corpus

corpus.edn is the contract: ~2920 rows {:suite :label :expected :actual}, with :expected sourced from reference JVM Clojure by test/conformance/regen-corpus.clj. It is frozen (the canonical source) — add or change cases here, then re-source the answers with regen-corpus.clj and re-certify with test/conformance/certify.clj.

The gate runners (host/chez/)

  • run-corpus.ss — runs every corpus case through the spine (read → analyze → IR → emit → eval, all on Chez), comparing each result by value-equality against the JVM :expected. A known-fail allowlist covers cases jolt can't match because Chez has no JVM host (Java classes, arrays, BigDecimal, opaque host-object printers, …); the gate fails only on a NEW divergence or if the pass count drops below the floor.

    chez --script host/chez/run-corpus.ss
JOLT_CORPUS_LIMIT=200 …            # every-Nth stride, fast iteration
JOLT_CHEZ_ZJ_FLOOR=N …            # override the floor (default 2678)

  • run-unit.ss — host-specific unit cases (test/chez/unit.edn) that aren't in the JVM-portable corpus: dot-forms, java statics, io, reader, walk, vars/namespaces, refs. Each :expr is evaluated in-process and its printed value compared to a baked :expected (:throws asserts a raise).

  • selfcheck.sh — self-host fixpoint: bootstrap.ss rebuild byte-equals the checked-in seed (host/chez/seed/).

  • smoke.sh — real bin/joltc -e CLI smoke.

Other Chez tests

  • values-test.ss — the value model (nil/truthiness/collections). make values.
  • bench-chez.ss — compute bench through the pipeline (opt-in; not in the gate).

All runners assume chez on PATH.