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jolt/host/chez/seed
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Yogthos b21b99b275 destructuring :or, fn :pre/:post, deftype field access + map-like dispatch 
General fixes shaken out running clojure.core.cache (66 -> 198 of its assertions):

- Map destructuring applied an :or default only for :keys/:strs/:syms, not a
  direct {x :x} binding — so {x :x :or {x 9}} (and the & {…} kwargs form) ignored
  the default. Apply it for the direct binding too.
- fn didn't implement :pre/:post: a leading conditions map was evaluated as a body
  literal (so % was unbound and (.q %) blew up). Recognize it and assert pre
  before the body, bind % to the result, assert post, return %.
- (.q inst) on a deftype field with no matching method reads the field, like the
  JVM (was "No method q").
- A deftype implementing the clojure.lang collection interfaces now dispatches
  dissoc (without), contains? (containsKey), peek/pop (IPersistentStack), and
  keys/vals (via its Seqable seq) through its methods — they were field-only, so
  core.cache's caches and data.priority-map didn't behave as maps.

JVM-certified corpus rows for each. make test + shakesmoke green.
2026-06-25 10:06:33 -04:00
..
image.ss destructuring :or, fn :pre/:post, deftype field access + map-like dispatch 2026-06-25 10:06:33 -04:00
prelude.ss destructuring :or, fn :pre/:post, deftype field access + map-like dispatch 2026-06-25 10:06:33 -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.