b879430618
map/filter/remove/take/drop/concat/take-while/drop-while/mapcat/partition built an eager-headed cseq: the first element (and the fn application) ran at construction, so a side-effecting (map f coll) fired f immediately and (class (map …)) was PersistentList instead of LazySeq. This diverged from Clojure, which wraps the whole body in lazy-seq. It went unnoticed because the conformance gate certifies values, not realization — eager and lazy heads produce identical values — and unit.edn even baked PersistentList in as expected. test.check's for-all-takes-multiple-expressions (which counts side effects in a for-all body) exposed it. Wrap each native producer's result in a lazy-seq node so the body, incl. the first element, defers until forced — the forced cseq still has eager heads, so reduce/count/dorun/etc. force on walk and there's no per-element cost. dedupe's (seq coll) is moved inside its lazy-seq. A jolt LazySeq is now recognized by coll?/empty, the analyzer's form predicates (a macro can build its expansion with map), value-host-tags + instance? (LazySeq/ISeq/ Sequential), and reports clojure.lang.LazySeq. Kept the native Scheme implementations rather than porting Clojure's: a straight lazy-seq+cons port is 3x slower and Clojure's chunked fast path is 288x slower because jolt's chunk machinery is unoptimized (filed jolt-j9dz); the wrapped natives are Clojure-lazy at native speed. +12 corpus rows (laziness at construction, LazySeq type, both JVM-certified). make test + shakesmoke green, selfhost holds, 0 new divergences. |
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|---|---|---|
| .. | ||
| build-app | ||
| bench-chez.ss | ||
| corpus.edn | ||
| directlink-test.ss | ||
| ffi-binding-test.ss | ||
| inline-test.ss | ||
| numeric-test.ss | ||
| README.md | ||
| transient-test.ss | ||
| unit.edn | ||
| values-test.ss | ||
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. Aknown-failallowlist 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:expris evaluated in-process and its printed value compared to a baked:expected(:throwsasserts a raise). -
selfcheck.sh— self-host fixpoint:bootstrap.ssrebuild byte-equals the checked-in seed (host/chez/seed/). -
smoke.sh— realbin/joltc -eCLI 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.