Milestone close for intrinsic-bodies (.1 mechanism 52ff873 + .2
migration/lock caa3618). Architect drift review over c42034b^..caa3618
plus the regression scripts. Both gates assessed; four drift items
resolved (3 fixed inline here, 1 filed to backlog).
Regression: both scripts exit 0.
bench/check.py → 34 metrics, 0 regressed, 2 improved beyond
tolerance (bench_hof_pipeline.bump_s -10.76%,
bench_list_sum_explicit.bump_s -12.27%), 32 stable.
bench/compile_check.py → 24 metrics, 0 regressed, 24 stable.
The milestone is behaviour-preserving; the two throughput improvements
are noise within the bench's run-to-run band, not a milestone effect.
Drift items (architect):
1. [FIXED] examples/prelude.ail — the 13 migrated defs' doc strings
still said "Body is placeholder for round-trip stability" and named
`try_emit_primitive_instance_body` (the pre-raw-buf.1 dispatch fn).
Post-migration the body IS an honest (intrinsic) marker, not a
placeholder, and dispatch is `intercepts::lookup`. The docs lied
about the very artefact the milestone exists to de-lie — an active
honesty-rule infraction on main. Rewritten to present-tense
"compiler-supplied (intrinsic) body; codegen emits <IR> via the
intercept registry" across all 13 (7 Eq/Ord instance methods +
6 float_* fns).
2. [FIXED] design/models/0007-kernel-extensions.md — claimed the
`try_emit_primitive_instance_body` hardcoded list is "not yet
migrated into a plugin registry ... deferred to the Series
milestone". Stale since raw-buf.1 (the registry shipped) and
intrinsic-bodies (the (intrinsic) marker + bijection pin). Rewritten
to the present state: the registry exists, (intrinsic) declares
membership, the bijection pin locks marker<->entry, and the
optimisation-only class is named.
3. [FIXED] CLAUDE.md "Lockstep-invariant pairs" — added the third pair:
INTERCEPTS entries <-> (intrinsic) markers, guarded by
intercepts_bijection_with_intrinsic_markers, with the
optimisation-only allowlist carve-out. Same class as the two existing
tabled pairs; ships silently broken if one side moves without the
other.
4. [BACKLOG #41, label idea] INTERCEPTS conflates two concepts —
intrinsic-backed (compiler-supplied body) vs optimisation-of-a-
real-body (the 5 *__Int icmp family). The .2 bijection pin contains
it with a hardcoded OPTIMISATION_ONLY allowlist + a stale-allowlist
guard; a structural split (an Intercept kind field) is the
forward direction but is its own focused change, out of scope here.
What holds (architect confirmed): data-model contract matches the
shipped Term::Intrinsic (design_schema_drift gates it); no INDEX row
needed (data-model addition, not a new contract); both existing
lockstep pairs untouched (answer lowers via the ordinary qualified-fn
path, no new lower_app arm; no Pattern::Lit reject); 0007-honesty-rule
correctly needed no edit (general rule, never named the dummies).
RATIFY — baseline move: the prelude module hash pin
(crates/ailang-surface/tests/prelude_module_hash_pin.rs) moves
2ea61ef21ebc1913 -> b1373a2c69e70a3f. Cause: this tidy's 13 doc-string
rewrites (item 1). doc is part of the canonical JSON, so the module
hash shifts; behaviour is unchanged. The 6 mono eq/compare def-hashes
do NOT move (synthesise_mono_fn sets doc: None, so instance-method docs
never reach the synthesised symbol). Full workspace test green
post-rebaseline.
Milestone intrinsic-bodies is closed. It unblocks the raw-buf.2 redo
(the polymorphic kernel-tier fns RawBuf needs now have an honest body
form). raw-buf (#7) remains parked; resuming it is a fresh decision.
Brummel
6ccc756c0f