jolt/Makefile
Dmitri Sotnikov f124701393
Infer monomorphic protocol-method return types (#234)
A protocol method whose impls all return the same record type has a monomorphic
return. collect-pm-rets! scans the unit's (register-(inline-)method ..) forms,
infers each impl fn's return type, and joins them per method; call-ret-type then
types a (method recv ..) call as that record, so a field read off the result
bare-indexes — e.g. (:ray (scatter m ..)) reads off a Ray. A disagreeing impl
joins to :any and keeps the generic path.

run-protoret.ss: a method with all-record impls bare-indexes + unboxes the field
read; a mixed-return method (one impl returns a number) stays generic. make test /
shakesmoke green, selfhost holds, 0 new divergences.

Foundation for auto-typing record values that flow through protocol dispatch. Does
not yet move the ray tracer: its scatter returns ScatterResult-or-nil (Metal
absorbs some rays), and the nil widens the join to :any — typing a nullable return
soundly needs flow-sensitive narrowing (a guarded (some? x) proves non-nil), filed
separately.

Co-authored-by: Yogthos <yogthos@gmail.com>
2026-06-26 16:59:35 +00:00

133 lines
5.2 KiB
Makefile

# jolt — Clojure on Chez Scheme. Single substrate, no Janet.
#
# bin/joltc runs jolt directly off the checked-in seed (host/chez/seed/); there is no
# build step. `make test` is the full gate. `make remint` rebuilds the seed after a
# source change.
.PHONY: test ci values corpus unit smoke buildsmoke selfhost sci certify ffi transient infer wp devirt fieldread numwp fieldnum protoret directlink numeric inline shakesmoke remint
# Full gate (dev machine). Includes the self-host byte-fixpoint, which only holds
# on the same Chez that minted the seed.
test: selfhost ci
@echo "OK: all gates passed"
# CI gate: behavior only. The checked-in seed is a minted artifact (like a
# lockfile) — it RUNS correctly on any Chez, but `selfhost` rebuilds it and a
# different Chez version may emit byte-different (gensym/order) output, so the
# byte-fixpoint is a dev-machine check, not a CI one (jolt-8479).
ci: values corpus unit smoke buildsmoke sci ffi transient infer wp devirt fieldread numwp fieldnum protoret directlink numeric inline certify
@echo "OK: CI gates passed"
# Self-host fixpoint: bootstrap.ss rebuild == checked-in seed.
selfhost:
@sh host/chez/selfcheck.sh
# Value-model unit tests (nil/truthiness/collections on Chez).
values:
@chez --script test/chez/values-test.ss
# Corpus conformance vs JVM-sourced expecteds (allowlist + floor).
corpus:
@chez --script host/chez/run-corpus.ss
# Host-specific unit cases.
unit:
@chez --script host/chez/run-unit.ss
# Real-CLI smoke over bin/joltc.
smoke:
@sh host/chez/smoke.sh
# `jolt build` produces a working standalone binary.
buildsmoke:
@sh host/chez/build-smoke.sh
# SCI conformance: load borkdude/sci's source through joltc (floor-gated).
sci:
@chez --script host/chez/run-sci.ss
# FFI: bind native functions (typed foreign-procedure), memory, and that a
# :blocking call is collect-safe (a parked thread doesn't pin the collector).
ffi:
@chez --script test/chez/ffi-binding-test.ss
# Transients: mutable backing, snapshot on persistent!, and linear-time builds.
transient:
@chez --script test/chez/transient-test.ss
# Inference / success-type checking: drive jolt.passes.types directly and assert
# diagnostic counts + collected calls/escapes (the optimization pass the other
# gates don't exercise).
infer:
@chez --script host/chez/run-infer.ss
# Whole-program param-type fixpoint: record types flowing across fn boundaries
# (a callee's param picks up its callers' ctor return types), the foundation the
# bare-index field reads + protocol devirtualization build on.
wp:
@chez --script host/chez/run-wp.ss
# Protocol-call devirtualization: a monomorphic call resolves its impl by the
# inferred record tag (find-protocol-method) instead of routing through the
# protocol var; the result must match ordinary dispatch.
devirt:
@chez --script host/chez/run-devirt.ss
# Native record field reads: a keyword lookup on a statically-known record reads
# the field by its declared slot (jrec-field-at) instead of jolt-get; the value
# must match, and a non-field key / default-arg form keeps the generic path.
fieldread:
@chez --script host/chez/run-fieldread.ss
# Hintless whole-program double inference: a fn whose every call site passes a
# flonum has its param typed :double by the closed-world fixpoint and unboxed to
# fl-ops with no ^double hint; an integer caller leaves it generic, an escaped fn
# keeps :any.
numwp:
@chez --script host/chez/run-numwp.ss
# Double record fields: a ^double-tagged field reads back as a flonum (coerced at
# construction and set!), so hintless arithmetic over those fields unboxes to fl-ops;
# an untagged field stays generic.
fieldnum:
@chez --script host/chez/run-fieldnum.ss
# Protocol-method return inference: a method whose impls all return the same record
# type has a monomorphic return, so a (method recv ..) call types as that record and
# a field read off the result bare-indexes; a disagreeing impl keeps the generic path.
protoret:
@chez --script host/chez/run-protoret.ss
# Direct-linking emission: a closed-world build binds top-level app defs to jv$
# Scheme bindings and routes app->app calls/refs to them, skipping var-deref +
# jolt-invoke; ^:dynamic/^:redef and nested defs opt out.
directlink:
@chez --script test/chez/directlink-test.ss
# Hint-directed fast arithmetic: ^double/^long param hints (and float literals)
# lower arithmetic to Chez fl*/fx* ops; un-hinted integer code stays generic.
numeric:
@chez --script test/chez/numeric-test.ss
# IR inlining: a small single-arity defn is spliced at call sites (under optimize),
# with ^double/^long entry/return coercions carried through via :coerce nodes.
inline:
@chez --script test/chez/inline-test.ss
# Tree-shake soundness: build example apps (incl. deps.edn git-lib apps) default vs
# --tree-shake and require identical output. Slow (two builds per app); not in the
# default gate. Skips without the examples repo / Chez kernel dev files.
shakesmoke:
@sh host/chez/tree-shake-smoke.sh
# JVM oracle: certify the corpus against reference Clojure. Skips if clojure absent.
certify:
@if command -v clojure >/dev/null 2>&1; then \
clojure -M test/conformance/certify.clj; \
else \
echo "certify: clojure not on PATH — skipped"; \
fi
# Re-mint the seed after changing a seed source (reader/analyzer/backend/core).
remint:
@sh host/chez/remint.sh