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jolt/host/chez/seed
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Yogthos 7a343351d6 Make clojure.spec.alpha load and run 
Four general gaps, shaken out by loading clojure.spec.alpha:

- Special forms were shadowable by a same-named macro. analyze-list
  macroexpanded before checking special forms, so a ns that redefs def/and/or
  (spec excludes them via :refer-clojure :exclude) made a bare def resolve to
  the macro instead of the special form, breaking every defn after. Now a head
  in the special-form set is never macroexpanded, matching the reference
  macroexpand1 isSpecial check.

- reify dropped all but the last arity of a multi-arity protocol method (spec
  reifies (specize* [s]) and (specize* [s _])). The macro keyed methods by name
  and overwrote; now it groups arities into one multi-arity fn.

- reify instances did not implement IObj: with-meta threw and (instance?
  clojure.lang.IObj r) was false. Every Clojure reify carries metadata. with-meta
  now copies the reify to a fresh identity (shared method table) and keys its
  meta; instance? IObj/IMeta is true for any reify. This was the registry bug —
  spec's with-name returned nil for specs, so get-spec missed.

- (set! (. Class field) val) was rejected. spec toggles
  clojure.lang.RT/checkSpecAsserts this way; the analyzer now lowers it to a
  jolt.host/set-static-field! call over a mutable-statics table, and a plain
  Class/field read consults that table.

Also: .name/.getName on a Namespace and .ns/.sym on a Var (spec's ns-qualify /
->sym). analyzer + reify are seed sources (re-minted). spec.alpha now does
valid?/conform/cat/keys/explain-str/check-asserts. tick.alpha.interval-test still
needs time-literals data readers (separate).
2026-06-24 19:46:22 -04:00
..
image.ss Make clojure.spec.alpha load and run 2026-06-24 19:46:22 -04:00
prelude.ss Make clojure.spec.alpha load and run 2026-06-24 19:46:22 -04:00
README.md Docs: Chez-only, drop the Janet-era references and obsolete migration notes 2026-06-22 09:05:35 -04:00

README.md

Chez bootstrap seed

These two files are the bootstrap compiler for jolt — the seed that makes the build self-hosting:

  • prelude.ss — the clojure.core prelude (all tiers + clojure.string/walk/ template/edn/set/pprint) as Scheme def-var! forms.
  • image.ss — the compiler image (jolt.ir + jolt.analyzer + jolt.backend-scheme) as Scheme def-var! forms.

Both are generated, not hand-written. They are checked in because a fresh checkout must be able to build jolt-on-Chez using only Chez: host/chez/bootstrap.ss loads this seed, then rebuilds the prelude + image from the .clj/.ss sources via the on-Chez compiler (read → analyze → emit, all on Chez). The seed is a joint byte-fixpoint: rebuilding from an up-to-date seed reproduces it exactly. make selfhost (host/chez/selfcheck.sh) runs host/chez/bootstrap.ss and diffs the rebuilt artifacts against the checked-in seed.

Re-minting

When the seed sources change (the core tiers, the compiler namespaces, the host contract, the reader, emit-image.ss), the seed drifts and make selfhost fails. Re-mint it by running host/chez/bootstrap.ss and writing the freshly rebuilt prelude/image back to host/chez/seed/prelude.ss / host/chez/seed/image.ss, then commit the refreshed files.