Commit Graph

906 Commits

Author SHA1 Message Date
Brummel 8bcdae1b53 fix(codegen): drop a let-bound owned loop result at scope close
An owned heap value whose `let`-binding value is a `(loop ...)` result,
afterwards only borrow-read (or unused), was never dropped at scope close
— a memory leak (AILANG_RC_STATS live=1). Newly observable once #47 made
fill-loops build: rawbuf_2_running_max leaked one buffer per run.

Root cause: is_rc_heap_allocated — the predicate the let-lowering uses to
decide a scope-close `dec` — matched only Term::Ctor, Term::Lam and
Own-returning Term::App. A Term::Loop-valued binder fell through to false,
so it was never registered for drop. (Sibling of the #47 synth gap: the
Term::Loop arm under-handled in yet another pass.)

Fix: add a Term::Loop arm that tracks the binder iff the loop's static
result type lowers to llvm `ptr` (boxed/heap) AND is not Str — and widen
drop_symbol_for_binder's App arm to cover Term::Loop so it resolves the
per-type drop symbol. Two load-bearing safety gates:
  - the `ptr` gate excludes unboxed primitives (Int/Bool/Float/Unit), so
    an Int-returning loop is not handed to a drop fn;
  - Str is excluded because a loop can return a *static* Str (a seed
    literal threaded unchanged) and ailang_rc_dec on a static-Str pointer
    is UB; an Own-App can never return a static Str, which is why the App
    arm may track Str but the Loop arm must not.
The loop's seed binders are consumed (moved in), so nothing else tracks
the result; linearity guarantees no alias, so the new drop is single.

Verified leak-clean and double-free-free across the fieldtest RawBuf set,
the consumed case, the Int-gate case, and the escape case (a fn returning
a loop-built owned RawBuf to its caller).

The separate per-iteration leak of superseded heap loop-binder values
(e.g. a Str accumulator threaded through recur) is a distinct, broader
pre-existing bug, filed separately — not addressed here.

RED-first: raw_buf_loop_no_leak_pin.
2026-05-30 17:14:28 +02:00
Brummel db710b1a73 fix(codegen): replay loop binders in synth_with_extras (closes #47)
A `let`-bound `loop` whose body references one of its own loop binders on
the non-recur exit passed `ail check` but failed `ail build` with
`unknown variable`. The fieldtest surfaced this with an owned RawBuf loop
binder, but the trigger is element-type-independent.

Root cause: the Term::Loop arm of synth_with_extras (the type-replay walk
the let-lowering runs via synth_arg_type on every let value) descended
into the loop body WITHOUT adding the loop binders to `extras`, unlike the
Term::Let arm which pushes its binder. A loop binder referenced on the
non-recur exit then resolved to UnknownVar during the type replay.

Fix: clone `extras`, push each loop binder's (name, ty), and thread the
augmented extras into the recursive synth of the body — mirroring the
Term::Let arm exactly. General fix; a plain Int let-bound loop that
references its binder also builds now.

This restores check<->codegen agreement for the natural fill-loop (thread
an owned buffer of runtime length through a loop/recur, one RawBuf.set per
iteration) — the way to populate a buffer whose length is not a fixed set
of literal indices.

Surfaced by the raw-buf fieldtest (finding B2, docs/specs/0058).
RED-first: loop_let_bound_binder_reference_builds.
2026-05-30 17:14:07 +02:00
Brummel 744ad41e47 fix(check): resolve type-scoped borrow-receiver ops in linearity (closes #46)
A function whose parameter is `borrow (RawBuf a)` and which calls
RawBuf.get or RawBuf.size on that parameter even once was rejected at
`ail check` with [consume-while-borrowed] — the exact borrow-receiver
use the ledger advertises for get/size. The diagnostic also misnamed the
cause: the receiver is read, not consumed.

Root cause: the linearity walk's callee_arg_modes looked up the callee
under its spelled name. A type-scoped polymorphic op is spelled
`RawBuf.get` at the call site, but check_module_with_visible registers
the kernel raw_buf ops under their bare def names (get/size). The lookup
missed, the receiver arg defaulted to Consume, and consuming a binder
whose borrow_count==1 (the Borrow param) fired the false positive. The
kernel signatures themselves are correct (receiver slot is `borrow`); the
only defect was the name-resolution gap in the linearity globals lookup.

Fix: on a direct-lookup miss, fall back to the bare method name via the
existing parse_method_qualifier + qualifier_is_class_shape resolvers,
gated on a class/type-shaped qualifier so lowercase cross-module-fn
qualifiers (std_list.length) are excluded. This is how the rest of the
checker already treats type-scoped polymorphic ops; the fix is general,
not RawBuf-specific.

This unblocks the natural borrow-helper decomposition (a shared
read-only buffer behind a helper fn) — the shape the downstream series
milestone's Series.at / Series.total_count need.

Surfaced by the raw-buf fieldtest (finding B1, docs/specs/0058).
RED-first: rawbuf_borrow_receiver_read_is_linearity_clean.
2026-05-30 17:13:56 +02:00
Brummel 75109f171d fix(check): param-not-in-restricted-set names the allowed set (closes #48)
The ParamNotInRestrictedSet diagnostic named the offending type, the
type-variable and the home type, but not the allowed set {Int, Float,
Bool} that design/models/0007 §4 promises it names. A downstream author
was told what is wrong but not what is right, and the kernel source that
carries the set is not available to a downstream consumer.

The allowed set already travels on the error struct (it flows into the
JSON `details.allowed`); only the human-readable `#[error]` render
dropped it. Append it to the Display string. JSON details unchanged.

Surfaced by the raw-buf fieldtest (finding B3, docs/specs/0058).
RED-first: param_in_reject_message_names_allowed_set pins the message
content before the one-line render fix.
2026-05-30 17:13:40 +02:00
Brummel 8e9f0f06a6 fieldtest: raw-buf — 4 examples, 6 findings (refs #7)
Downstream field test of the raw-buf surface as a consumer with only
the public interface (design ledger + `ail` CLI; no crate source).
Four fixtures under examples/fieldtest/, spec at
docs/specs/0058-fieldtest-raw-buf.md. Every recorded outcome
reproduced independently before commit.

Findings (3 bug, 1 spec_gap, 2 working):

- B1 [bug] `borrow (RawBuf a)` receiver is unusable. A fn taking
  `borrow (RawBuf Int)` that calls RawBuf.get/.size on the parameter
  even once is rejected `consume-while-borrowed` — the diagnostic
  names the wrong cause (the receiver is not consumed). The ledger
  advertises get/size as borrow-receiver ops, so the documented use
  is unreachable from any helper-function decomposition. This blocks
  Series (#8) — the milestone's own downstream raison d'être —
  whose at/total_count read through a `borrow (Series a)`.

- B2 [bug] An owned RawBuf threaded through a `loop` binder passes
  check but panics codegen `unknown variable: b` at build. A plain
  Int loop binder builds fine, so the fault is specific to an owned
  RawBuf loop binder. Breaks the check↔codegen agreement.

- B3 [bug] `param-not-in-restricted-set` omits the allowed set.
  design/models/0007 §4 promises the diagnostic "names the offending
  type and the allowed set"; the shipped message names the type, the
  type-var, and the home type but not `{Int, Float, Bool}`. A
  downstream author is told what is wrong but not what is right.

- B4 [spec_gap] RawBuf.set receiver double-consume is not enforced;
  two set calls on the same owned buffer silently alias the slab.
  Not raw-buf-specific (owned Str/ADT behave identically) — a
  pre-existing linearity-non-enforcement property. Recorded because
  RawBuf's own→own mutation is the first place a silent alias yields
  a mutated-in-place surprise. Ratify in the ledger or open a backlog
  item for full linear enforcement.

- W1 [working] `(new …)` sugar + inference-from-use across
  Int/Float/Bool builds and runs first try (sensor_pair prints 5.0);
  the Bool i1/i8 packing edge round-trips. The milestone's cleanest win.

- W2 [working] param-in reject fires for both Str and a user TypeDef.

Net: B1+B2 mean the only RawBuf programs that build today are
straight-line owned let-threading with literal indices — the
shipped-fixture shape. Helper decomposition (B1) and runtime-length
loop fill (B2) both fail. fieldtest does not self-resolve; routing
is the orchestrator's call.
2026-05-30 16:26:48 +02:00
Brummel f37bd959d4 audit: raw-buf milestone close — tidy (clean) (refs #7)
Cycle-close drift review for the raw-buf milestone (raw-buf.1-.6 +
the #42/#43 drop-leak bug-fixes), range a163c8c..HEAD. raw-buf.6
(13e590c) retired kernel_stub; raw_buf is now the sole kernel-tier
base extension, ailang-kernel its family-crate home.

Architect (range a163c8c..HEAD, focus raw-buf.6 removal): clean, no
drift.
- Lockstep pair 3 (INTERCEPTS <-> (intrinsic) markers) intact:
  answer + StubT_peek__{Int,Float} entries left with the deleted
  kernel_stub source; the 12 surviving RawBuf entries (4 ops x
  {Int,Float,Bool}) bijection cleanly with the 12 markers
  parse_raw_buf() generates; intercepts_bijection_with_intrinsic_markers
  green. No orphan entry, no orphan marker.
- Design ledger present-state: INDEX.md + models/0007 name raw_buf
  as the sole live ratifier, raw-buf shipped, series pending. No
  stale "ratified by the stub", no aspirational retirement framing.
- Dangling-reference sweep clean: only residual is the intentional
  self-contained inline serde_json check-layer fixtures in
  ailang-check/src/lib.rs. Kernel crate is lib.rs + raw_buf/ only;
  count pins re-baselined 5->4.
- Lockstep pairs 1 (Pattern::Lit <-> pre_desugar_validation) and 2
  (lower_app <-> is_static_callee) saw no raw-buf-range arms needing
  a mirror. All five architect sweeps exit 0.

Regression (all green, no baseline move):
- compile_check.py: exit 0, 24/24 stable (uniform downward check_ms
  within tol -- stub no longer parsed per compile; within the 20%
  band, no re-ratify warranted).
- check.py: exit 0, 34/34 stable.
- cross_lang.py: exit 0, 25/25 stable.

Resolution: carry-on. No fix iteration, no baseline ratify. Hygiene:
removed untracked git-ignored *.ll.actual scratch files carrying
pre-removal stub IR (never shipped).
2026-05-30 16:10:42 +02:00
Brummel 13e590cb46 iter raw-buf.6 kernel-stub-retirement (DONE 5/5): retire the stub, raw_buf is the sole base extension (refs #7)
Closes the raw-buf milestone. raw_buf (shipped raw-buf.1-.5; the
owned-drop resolution landed under bug #42/#43) has subsumed every
ratification role kernel_stub held -- Term::New end-to-end, the
param-in reject, kernel-tier auto-import, the monomorphic intrinsic
path, and the type-scoped polymorphic intrinsic mechanism (RawBuf's
four ops). The stub is now redundant; this iteration removes it.

Pure removal (-636/+49 across 22 files, 7 deleted):
- Rust surface: drop `mod kernel_stub` + `STUB_AIL` re-export
  (ailang-kernel), `parse_kernel_stub` + its workspace injection
  (ailang-surface), the `answer` + two `StubT_peek__{Int,Float}`
  INTERCEPTS entries + their three emit fns (ailang-codegen). The
  (intrinsic) markers leave with the deleted source, so the
  marker<->entry bijection holds in lockstep.
- Source + tests: delete crates/ailang-kernel/src/kernel_stub/,
  kernel_stub_module_round_trips, the two stub-consumer e2e tests,
  and mono_scoped_symbol.rs (its scope-qualified-mono mechanism is
  now pinned by RawBuf's ops + the intercepts bijection).
- Fixtures: delete kernel_answer.ail, new_stubt_smoke.ail,
  peek_mono_pin_smoke.ail, and fieldtest kem_3_stub_consumer.ail
  (referenced the deleted StubT; documented a since-fixed bug).
- Pins: re-baseline both workspace-count content-pins 5 -> 4
  (workspace_pin.rs + the e2e.rs twin) and regenerate all five IR
  snapshots (400 stub-IR lines removed; no user IR changed -- the
  stub auto-injected into every build).
- Ledger: design/INDEX.md + design/models/0007 to present-state
  (raw_buf is the live ratifier; raw-buf milestone shipped, series
  pending), plus architecture-comment sweep across workspace.rs,
  mono.rs, check/codegen lib.rs, workspace_kernel.rs.

Scope decisions (orchestrator, pre-plan): the self-contained inline
serde_json check-layer fixtures in ailang-check/src/lib.rs keep their
incidental StubT/kernel_stub sample names (they construct what they
reference; not stub-ratification) -- the one permitted residual.
kem_4 fieldtest kept (uses a user NumBox ADT, comment-only edit).
hash.rs `name: "answer"` left (generic serde doc example).

Plan-gap caught at implement: the planner's verbatim edit list
under-enumerated four honesty sites; one (mono.rs:562) carried a
literal `StubT_peek__Int` -- a hard-gate symbol the verbatim list
missed, which would have failed Task 4's removal gate. Filled
(comment-only, no behaviour). Confirms the planner self-review
filter-completeness risk; the implement gate caught it.

Verification: full workspace suite green (0 failed); hard symbol gate
(STUB_AIL|parse_kernel_stub|emit_answer|emit_stubt_peek|StubT_peek__)
zero matches across crates/ examples/ design/; soft gate residual only
the kept inline fixtures; kernel crate is lib.rs + raw_buf/ only.
Regression: compile_check 24/24 stable (exit 0; uniform downward
check_ms within tol -- stub no longer parsed per compile), cross_lang
25/25, check 34/34 stable (exit 0; an earlier exit-1 on
rc_over_bump was machine-load ratio noise -- denominator bump_s got
faster, rc_s also improved -- confirmed green on re-run, not
baselined).
2026-05-30 16:07:29 +02:00
Brummel fb0dd92a6c plan: raw-buf.6 kernel-stub-retirement (refs #7) 2026-05-30 15:53:54 +02:00
Brummel c5eca7e91d bench: re-ratify compile_check baseline (closes #45)
Re-baseline bench/baseline_compile.json, last ratified 2026-05-15
(20add51, mut.4-tidy). check_ms shifted +35..47% uniformly across all
12 fixtures (~1.8-3.3ms -> ~2.4-4.7ms); build_O0_ms rose ~10%
(90->100ms) but stayed inside its 20% tolerance and so never tripped.

RATIFY, not a regression. The decisive signal is that the check_ms
drift is *uniform* across every fixture regardless of complexity
(hello +35%, nested_pat +35%). Fixture-independent drift means the
cost lives in shared per-invocation work, not in any fixture-specific
checker path. Two concrete shared-cost growths fully account for it:

  - examples/prelude.ail grew 116 -> 153 lines (+32%); every
    `ail check` parses and typechecks the full prelude.
  - the kernel_stub module is now injected alongside prelude on every
    check (landed in raw-buf prep.3, 9339279, #33) — a whole extra
    module parsed + typechecked per invocation.

Both are real modules added by wanted features, not a quadratic
blow-up. There is no fixable type-checker regression hiding here; the
+0.8ms is the parse+typecheck cost of more shared source. The throughput
baseline (bench/baseline.json) was already re-ratified 2026-05-28
(de4399d); this brings the compile baseline back in sync.

Corrects the record: the #44 cycle-close audit body (7321826) wrongly
attributed the compile_check exit-1 to transient machine load. main is
sacrosanct so 7321826 cannot be amended; #45 and this commit are the
forward correction.

Verified: compile_check.py -n5 -> 24 metrics, 0 regressed, 24 stable.
2026-05-30 15:31:04 +02:00
Brummel 7321826c66 audit: cycle-close tidy for #44$-lexer-reservation (refs #44)
Cycle-close audit for the #44 Form-A `$`-reservation cycle
(b151990..HEAD). One drift item fixed inline. Both regression scripts
exited 1; investigated and attributed to machine load this session, NOT
a code regression — baseline deliberately NOT updated.

Architect drift review:
- [fixed] design/models/0001-authoring-surface.md — the line "The only
  reserved tokens are `(`, `)`, and whitespace" was made stale by this
  cycle (the lexer now rejects any identifier token containing `$`).
  Corrected to distinguish token *delimiters* (`(`/`)`/whitespace) from
  the `$` *character reservation within a token*, scoped to the Form-A
  authoring surface, naming the enforcement site
  (`LexError::ReservedDollar`) and the intentional `.ail.json` non-guard.
- [carry-on] honesty sweep otherwise clean: the only other `$`-mentions
  in the ledger (0008-memory-model.md, 0003-pipeline.md) describe
  synthetic mint names (buf$1, <hint>$lr_N) and remain correct. No
  over-broad "no Module can contain `$`" prose exists. The corrected
  fresh_binder doc-comment (feat commit) is Form-A-scoped and honest.
- Decision: no new ledger *contract* added. 0015-language-constraints
  holds the four RC-soundness preconditions (strict eval, no recursive
  value bindings, no shared mutable refs, acyclic ADTs); a lexical
  character reservation is a different category and is documented in the
  authoring-surface model doc with its enforcement site, which is its
  natural home. Architect confirmed absence of `$`-contract prose is not
  itself drift.

Lockstep pairs: none apply (architect walked each against the diff):
- Pattern::Lit typecheck <-> pre_desugar_validation.rs — neither changed.
- lower_app <-> is_static_callee — codegen unchanged.
- INTERCEPTS <-> (intrinsic) markers — intercepts.rs + kernel sources
  unchanged.

Regression scripts:
- bench/cross_lang.py: EXIT 0. 25 metrics; 0 regressed, all stable.
- bench/compile_check.py: EXIT 1; "12 regressed" — ALL are check_ms.*
  (type-check wall-clock), baseline ~1.8-3.3ms vs actual ~2.5-4.4ms,
  ~+0.8ms absolute and roughly UNIFORM across every fixture regardless
  of size (hello +39%, bench_list_sum +51%). All 12 build_O0_ms.* (the
  ~93ms LLVM portion of the same `ail build`) are within tolerance but
  also uniformly shifted +12-15%. Attribution: NOT this cycle's code.
  The guard adds one `raw.contains('$')` byte-scan per token; a tiny
  module is ~50 tokens, so the added cost is nanoseconds — physically
  cannot account for +0.8ms on a 2ms check. The uniform ~12-15% shift
  across the WHOLE `ail` invocation (check AND build) is a global
  machine-slowdown fingerprint (heavy concurrent subagent/cargo load
  this session); it crosses the 25% tolerance only on the tiny-baseline
  check_ms metrics. Localised by reasoning, not by the bencher (the
  effect is environmental, nothing to localise in code).
- bench/check.py: EXIT 1; throughput metrics flipping run-to-run with
  identical code (rc_over_bump moved in/out of REGRESSION across four
  runs; bump_s swung -9.5/-11/-14/-15%). Same machine-load variance;
  rc_over_bump is a ratio of two independently-noisy wall-clock
  measurements, the noisiest metric in the set.

Baseline NOT updated on either script: ratifying a machine-load delta
would bake an under-load baseline in and mask a future real regression.
OPEN VERIFICATION: re-run bench/compile_check.py and bench/check.py on a
quiet machine to confirm green; tracked as the cycle's one open item.
Cycle #44 closes (code + docs clean; regression gate pending a
clean-machine confirmation, baseline untouched).
2026-05-30 15:18:49 +02:00
Brummel 11e4c4624d feat: reserve $ in the Form-A lexer (closes #44)
Enforces the `$`-in-authored-names reservation that fresh_binder
(ailang-core::desugar) silently relied on. `fresh_binder` mints
shadow-rename binders as <base>$<n>; its collision probe could not see
an authored binder literally named <base>$<n> that binds later under
the same (def, name) uniqueness key — the exact collapse class #43
closed. The `$`-for-synthetic convention (`$mp_N`, <hint>$lr_N,
<base>$<n>) was held by discipline only.

This makes it a lexer-enforced invariant: no Form-A identifier token
may contain `$`. A one-line guard in tokenize rejects any token run
containing `$` before int/float/ident classification, raising the new
LexError::ReservedDollar { token, start }. It surfaces through the
existing ParseError::Lex -> W::SurfaceParse -> surface-parse-error
channel with zero new wiring — no new CheckError, no AST walker, no
entry-point threading.

Placement rationale (the load-bearing call): the threat vector is
Form-A source only. The client LLM author is forbidden from emitting
canonical .ail.json directly — it writes Form A exclusively; only the
orchestrator hand-authors JSON in rare exceptions. So every authored
identifier a hallucinating client could produce flows through the
lexer. `$` is a reserved character (like parens) with no legitimate
authored use in any position — unlike `.`/`/`, which DO have
legitimate uses (std_list.map) and therefore live in the check layer
(InvalidDefName) with AST-aware positional logic. No positional split
for `$` means no walker; the lexer is the right boundary. An earlier
draft put the reject in pre_desugar_validation justified by "a client
could build .ail.json directly" — false under the authoring contract,
so the simpler lexer reservation replaced it.

Exemptions by scan order, not special-case: `$` inside string literals
and comments stays legal because both are consumed by earlier branches
of the scan loop, before a run is ever sliced. The six checked-in
example files mentioning loop$lr_0 in comments keep parsing.

Documented non-goals (honesty rule): the .ail.json deserialization
path stays unguarded (the orchestrator's self-responsible channel);
the fresh_binder probe-body simplification (issue Q4) is not bundled —
only its now-false doc-comment is corrected to state the enforced
invariant, scoped to Form-A authored identifiers.

Verification (all run, all green):
- 3 in-source lexer tests: reject on x$1, exemption for $ in string,
  exemption for $ in comment. RED confirmed pre-guard (tokenize("x$1")
  returned Ok([Ident]), expect_err panicked); GREEN after.
- 2 integration tests (reserved_dollar_pin.rs): the reject reaches the
  public parse entry as ParseError::Lex(ReservedDollar); string
  exemption survives at parse level.
- cargo test --workspace: green, 0 failed.
- CLI: check on the comment-$ example (exit 0) and on the #43 shadow
  idiom raw_buf_int.ail (exit 0, buf->buf$1 rename minted post-parse,
  never re-lexed); a fresh $-binder source now rejected with the
  surface-parse-error diagnostic naming the token and byte offset.

Spec: docs/specs/0057-reserved-dollar-in-names.md (grounding-check
PASS). Plan: docs/plans/0112-reserved-dollar-in-names.md.
2026-05-30 15:00:17 +02:00
Brummel 559531806d plan: reserved-dollar-in-names — dollar-lexer-reservation (refs #44)
Executable plan for spec 0057 (committed c760570). Single iteration,
four tasks: (1) LexError::ReservedDollar variant + inline tokenize
guard + 3 in-source lexer tests (RED-first on the must-fail
dollar_in_ident_is_reserved); (2) fresh_binder doc-comment correction;
(3) a surface integration test pinning the
parse -> ParseError::Lex(ReservedDollar) surfacing chain; (4)
no-regression sweep (workspace suite + CLI checks on a comment-dollar
example and the #43 shadow idiom).

plan-recon verified all line anchors against HEAD (lex.rs:183
run-slice, lex.rs:67-76 enum, 19 in-source tests, desugar.rs:528-536
doc-comment, parse.rs:103/126/149, main.rs:1339, ct1_check_cli.rs:310)
and confirmed none of the three CLAUDE.md lockstep pairs apply.
Self-review caught and fixed two defects before hand-off: the
integration test imported the private lex/parse module paths
(corrected to the crate-root re-exports
ailang_surface::{parse, LexError, ParseError}), and the compile-gate
check confirmed no external exhaustive match on LexError exists, so
adding a variant cannot break compilation and the Task 1 RED is a
genuine runtime expect_err panic.
2026-05-30 14:51:41 +02:00
Brummel c76057008e spec: reserve $ in the Form-A lexer (refs #44)
#44 asks to enforce-or-retract the `$`-in-authored-binder-names
reservation that `fresh_binder` (ailang-core::desugar) relies on for
collision-free shadow-rename mints. This spec chooses enforcement, and
places it in the Form-A lexer rather than the check layer.

The placement is the load-bearing design decision. An earlier draft put
the reject in `pre_desugar_validation` (check layer), justified by "a
client could construct `.ail.json` directly, bypassing the lexer". The
user corrected the threat model: the client LLM author is forbidden from
emitting canonical `.ail.json` — it writes Form A exclusively, and only
the orchestrator hand-authors JSON in rare exceptions. So the entire
hallucinating-client attack surface is Form-A source, which always flows
through `tokenize`. That collapses the design:

- `$` is a reserved character (like `(`/`)`) with no legitimate authored
  use in any position — verified: zero authored `$` idents exist in the
  checked-in `.ail` corpus; the six `$` occurrences are all in comments.
  No positional split, so no AST-aware walker is needed — unlike `.`/`/`,
  which DO have legitimate uses (`std_list.map`) and therefore live in
  the check layer (`InvalidDefName`). The issue's premise "lex.rs
  reserves only `.`" is false on two counts and is corrected in the spec.
- The reject is a single new `LexError::ReservedDollar`, raised inline in
  the `tokenize` run-classification arm, surfaced through the existing
  `ParseError::Lex` -> `W::SurfaceParse` -> `surface-parse-error` channel.
  No new `CheckError`, no AST walker, no multi-entry-point wiring (the
  check layer has four entry points, only two of which currently run the
  pre-desugar pass — a trap the lexer placement sidesteps entirely).

Documented non-goals (honesty rule): the `.ail.json` deserialization path
stays unguarded (the orchestrator's self-responsible channel, scoped out
by the user); the `fresh_binder` probe-body simplification (issue Q4) is
not bundled — only its now-false doc-comment is corrected.

grounding-check PASS on the final bytes: all six load-bearing assumptions
ratified by green tests; all three Form-A example blocks parse-gate clean
(exit 0 today, by design — the reject is new behaviour). String- and
comment-internal `$` stay legal by scan order; no must-fail `$` fixture
goes under examples/ (the round-trip test parses every fixture there).
2026-05-30 14:41:04 +02:00
Brummel b151990028 audit: raw-buf close-fixes — honesty + ledger for the binder-rename (refs #43)
Architect drift review at raw-buf milestone close (after 55d76ae closed
#43) surfaced three items; this commit clears them. All three lockstep-
invariant pairs were confirmed intact and the effective-name keying was
confirmed consistent across the desugar→lift boundary (lift_letrecs reads
the desugared tree's effective names too).

1. [high] Honesty fix. `fresh_binder`'s doc-comment (and 55d76ae's body)
   claimed "authored names cannot contain `$` — the lexer reserves it".
   False: the lexer (ailang-surface) reserves only `.`, not `$`. The
   `$`-for-synthetic convention is not enforced. So collision-freedom
   rests solely on the `used` + in-scope-`scope` probe, which does not
   see an authored `<base>$<n>` that is out of scope at mint time but
   later binds under the same `(def, name)` key — the very collision
   class this fix closes. Latent (no fixture uses a `$` binder), but the
   stated rationale was wrong. Doc-comment now describes the probe
   honestly and names the gap + its two possible closures (enforce the
   reservation, or seed `used` with every authored binder name in the
   def). The enforce-or-retract decision is the next-direction follow-up.

2. [medium] design/models/0003-pipeline.md — "desugar currently only
   flattens nested constructor patterns" no longer matches the code
   (it now also alpha-renames shadowing binders). Corrected to current
   state (honesty-rule).

3. [low] design/contracts/0008-memory-model.md — the three drop gates
   all key on `(def_name, binder_name)` consume_count, silently relying
   on per-fn binder-name injectivity, which the ledger never stated.
   Added that invariant as an explicit precondition of the gates, with
   the desugar guarantee and its ratifying tests.

No code-logic change; doc-comment + ledger only.
2026-05-30 12:50:55 +02:00
Brummel 55d76ae4a1 fix: alpha-rename shadowing binders at desugar — A2b leg (closes #43)
The last open leg of the RawBuf owned-heap drop-leak cluster #43: the
UniquenessTable shadow-name collapse. The side-table keys by
(def_name, binder_name); a fn that shadows a binder name — the shipped
`(let buf (new…) (let buf (set buf…) … (get buf)))` idiom — collapses
every shadow onto one key. The outermost binding records last (on pop)
and overwrites the inner ones, so codegen's scope-close drop gates read
the collapsed consume_count for the innermost binding, misjudge its
ownership, and suppress its drop. The owned slab leaked (live==1).

Fix: desugar now alpha-renames any binder whose authored name shadows
an enclosing binding to a fresh `<name>$<n>`, making the (def, name)
key injective per fn. The rename is on-shadow-only and uniform across
binder kinds (Let, flat-Match pattern-binders, Lam params, Loop
binders); non-shadowing binders keep their authored name, so every
existing fixture's desugared output is byte-identical (evidenced by the
full pre-existing desugar suite passing unchanged). IR-neutral: codegen
names heap by fresh SSA, never by the source binder name.

No consumer of the uniqueness table changes — they all key by name, and
the name is now a per-fn injective identity (acceptance criterion 5).
The fix is entirely internal to ailang-core::desugar; uniqueness.rs gets
only a doc-comment correction (its old text was wrong on two counts:
"last = innermost by pop-order" was backwards, and "every shipping
fixture has unique binder names" was false).

Mechanism (vs. the spec's sketch): the threaded lexical scope became a
`Scope` struct carrying `entries` keyed by each binder's EFFECTIVE
(post-rename) name and `rename` mapping authored→effective. Keying
entries by effective name is load-bearing, not cosmetic: the LetRec
capture-detection reads `free_vars_in_term` of the desugared body
(effective names) and filters by `scope.contains_key` — had entries
stayed keyed by authored name, renaming an enclosing let would have made
a captured shadowed binder invisible to capture detection (UnknownVar in
the lifted fn). `insert_fixed` records identity renames for never-renamed
binders (fn-params, LetRec name/params) so an inner renamable binder that
shadows them is still detected.

Alternatives rejected: (A) an AST id field and (B) a derived
binding-path — both solve the deeper, SEPARATE problem of persistent AST
provenance back to the authored form, which is certain to be needed
eventually but is not required here; conflating the internal naming
collision with provenance is a category error. C′ (this) reuses the
existing fresh-name machinery and touches one pass.

Verification: the three shipped Let-shadow tests
(raw_buf_{int,float,bool}_shadow_rebind_drop_balances_rc_stats) reach
live==0 (were RED at live==1); the flat-pattern differential
(flat_pat_shadow_binder_does_not_leak_more_than_alpha_renamed) reaches
its alpha-renamed control's live count (was 5 vs 3); a new desugar unit
test (shadowing_let_is_alpha_renamed) pins the rename + reference
resolution; full workspace suite green, no fixture output drift. Both
no-change consumers re-verified by hand: match_lower.rs keys by the
emitted (renamed) pattern binder, linearity builds table and lookups
from the same desugared tree.

Spec: docs/specs/0056-unique-binder-names.md.
Plan: docs/plans/0111-unique-binder-names.md.
2026-05-30 12:42:44 +02:00
Brummel 1990147467 plan: unique-binder-names — desugar alpha-rename for #43 A2b (refs #43)
Executable plan for spec 0056. Three tasks:
- Task 1 (atomic compile unit): introduce a `Scope` struct threading
  two maps — `entries` keyed by each binder's effective (post-rename)
  name, `rename` mapping authored→effective for shadow detection and
  Term::Var resolution; add `fresh_binder` (<name>$<n>) and
  `rename_pattern_binders`; rewrite every binder site (Let, flat-Match
  pattern, Lam params, Loop binders) with rename-on-shadow, plus the
  LetRec arm and both def-boundary constructions, to the new API.
- Task 2: correct the UniquenessTable doc-comment; verify the four RED
  tests go GREEN; full-suite regression gate.
- Task 3: regression guard — a desugar unit test pinning that a
  shadowing let is alpha-renamed and that a letrec capturing the
  shadow-renamed binder still resolves (the entries-keyed-by-effective
  choice is what keeps capture detection correct under rename).

Recon surfaced two facts the spec's sketch did not: the scope is a bare
BTreeMap (so resolved_name/bind live on a new Scope type, not the map),
and the LetRec capture-detection reads effective names from the
desugared body — hence entries are keyed by effective name. Both stay
internal to desugar.rs, preserving acceptance criterion 5 (no change to
uniqueness.rs logic / codegen gates / linearity.rs). Both no-change
consumers verified: match_lower.rs:795 keys by the emitted (renamed)
pattern binder; linearity builds table and lookups from the same
desugared tree.
2026-05-30 12:35:07 +02:00
Brummel 0015f3dad1 spec: unique binder names per fn — A2b leg of RawBuf drop-leak (refs #43)
The last open leg of the #43 owned-heap drop-leak cluster is the
UniquenessTable shadow-name collapse: the side-table keys by
(def_name, binder_name), so a fn that shadows a binder name collapses
every shadow onto one key. The outermost binding (records last, on pop)
overwrites the inner ones; codegen's scope-close drop gates then read
the collapsed consume_count for the innermost binding and suppress its
drop, leaking the owned slab.

Spec 0056 resolves this as a compiler-internal naming collision — NOT
the deeper, separate problem of persistent AST provenance back to the
authored form (certain to be needed eventually, deliberately deferred;
conflating the two is a category error). Fix: alpha-rename shadowing
binders during desugar (reusing the existing fresh-name machinery that
already mints $mp_N / $lr_N), making the (def, name) key injective
again. No consumer of the uniqueness table changes — they all key by
name, and the name becomes a per-fn injective identity. IR-neutral:
codegen names heap by fresh SSA, never by source binder name. The
pre-desugar hashed form is untouched, so module identity and hash-pin
tests are unaffected.

RED fixtures securing the binder-kind class (the user's gating
condition before proceeding to the uniform-across-kinds fix):
- Let-shadow: the three raw_buf_{int,float,bool}_shadow_rebind tests
  (already in tree, committed f7f4c3b) — assert live == 0.
- Flat-pattern-shadow: a differential test plus its two fixtures
  (flat_pat_shadow_leak.ail shadows the outer binder; _control.ail
  alpha-renames it to a distinct name). The shadow must reach the
  control's live count. Differential by design, to isolate the
  shadow-collapse drop from unrelated baseline drop gaps out of
  #43's scope.

Grounding-check PASS; ail-check parse-gate green on every fenced block.
2026-05-30 12:21:27 +02:00
Brummel 0f6108e428 fix: resolve cross-module borrow modes in the uniqueness pass (refs #43)
A2a leg of the owned-RawBuf drop-leak. Prerequisite: regression-free
and independently correct, but does NOT alone close the leak — the
three shadow_rebind RED tests (f7f4c3b) stay RED pending the A2b
shadow-collapse leg, which needs a UniquenessTable contract change and
its own spec.

The leg. The uniqueness pass infer_module runs strictly per module
(called per-Emitter from codegen lib.rs:993 with a single Module). The
module holding `main` registers only its own + builtin signatures in
`globals`; the monomorphised intrinsic signatures (RawBuf_get__Int with
param_modes=[Borrow,Implicit], etc.) live exclusively in the raw_buf
module's separate pass. So a qualified cross-module callee
`raw_buf.RawBuf_get__Int` missed `main`'s globals entirely, returned
vec![], and the walk defaulted every arg to Position::Consume —
mis-counting the borrowed `buf` arg as a consume and inflating the
binder's consume_count, which gates off the scope-close drop. This is a
latent over-conservative default affecting ANY cross-module borrow
callee, not just RawBuf.

The fix (additive, two files). infer_module is kept as a thin wrapper
over a new infer_module_with_cross(m, &cross_module_types) that threads
the workspace-flat module->def->Type table (the same module_def_ail_types
codegen already builds and the A1 emit_call rule already reads). On a
same-module globals miss, callee_arg_modes now falls back to
cross_module_callee_ty: split the callee on the last `.`, resolve
<mod>.<def> positionally against the cross-module table, and read its
Type::Fn.param_modes. Same-module + builtin lookup stays the first
resort; unqualified names and absent entries fall through to the
existing all-consume default unchanged. Modes are matched positionally,
so RawBuf.set's Own first param still counts as a consume (the
new/set-chain binders keep consume_count==1 and are not dropped —
correct, set is in-place, same slab).

Verified: full workspace green except the three intended-RED
shadow_rebind tests; ailang-check and ailang-codegen (incl.
intercepts_bijection_with_intrinsic_markers) green; A1's
raw_buf_owned_drop_balances_rc_stats still green. raw_buf_int.ail still
leaks (live=1) — that is the A2b leg, addressed next.
2026-05-30 11:19:49 +02:00
Brummel f7f4c3b237 test: RED shadow-rebind RawBuf drop-leak on shipped fixtures (refs #43)
raw_buf_{int,float,bool}_shadow_rebind_drop_balances_rc_stats guard
the three shipped milestone fixtures (the LLM-natural shadow-rebind
idiom `(let buf (new...) (let buf (set buf...) ...(get buf)))`) with a
live==0 RC-stats assertion alongside their existing stdout check.

This is a SECOND, distinct leak mechanism (A2), separate from the
anonymous-temp path fixed in 62cd4b4 (A1). The A1 call-site drop does
not cover it: here `get`'s arg is the BOUND `buf` (a Term::Var), not an
anonymous temp, so the A1 rule (which excludes Var args) correctly does
not fire, and the leak persists — allocs=2 frees=1 live=1.

Cause (A2). The uniqueness pass runs post-monomorphisation
(infer_module called from codegen lib.rs:993). It registers the
intrinsic monomorph signatures in `globals` under their bare local
name `RawBuf_get__Int` (uniqueness.rs:128), but callee_arg_modes
(uniqueness.rs:390-410) looks them up by the cross-module-qualified
callee-Var name `raw_buf.RawBuf_get__Int` -> MISS -> vec![] -> every arg
defaults to Position::Consume (walk arm uniqueness.rs:240-242). The
borrow-mode RawBuf param of `get`/`size` is thus mis-counted as a
consume, inflating the final `buf` binder's consume_count from 0 to 1,
which suppresses the Term::Let drop gate at codegen lib.rs:1795. The
param_modes in the registered Type::Fn are correct ([Borrow, Implicit]);
the only defect is the name-key mismatch that hides them from the
lookup.

NOT issue #42's "shadow-name collapse": #42's own evidence shows the
distinct-name (b0/b1/...) variant leaks identically, so the defect is
the borrow-counted-as-consume default, not name-keyed ownership.

RED until callee_arg_modes resolves the qualified intrinsic name to the
registered signature. The A1 test (raw_buf_owned_drop_balances_rc_stats)
and the four stdout _e2e tests stay green.
2026-05-30 10:58:07 +02:00
Brummel 62cd4b4ee7 fix: drop owned temp passed to a borrow slot at the call site (closes #43)
GREEN side of the owned-RawBuf drop-leak. RED test
raw_buf_owned_drop_balances_rc_stats (47efbdb) now passes:
allocs=2 frees=2 live=0, stdout still "10".

The leak. An owned temporary returned by an Own-ret call and then
passed only to a `borrow`-mode parameter is dead after that call but
was dropped by no one. In the repro, RawBuf.set returns (own RawBuf)
in-place (the intercept emits `ret ptr %b`, the same slab it received),
and that result is passed to RawBuf.get whose RawBuf param is `borrow`,
so get does not consume it and returns an i64. After get the owned
slab is dead. Codegen's two scope-close drop emitters cover only
Term::Let binders (the let gate) and Own fn-params; the general call
lowerer emit_call spliced args without inspecting per-arg modes, so an
owned arg landing in a borrow slot was never dec'd. The leak is
binder-independent — the fully inline form with no `let` at all leaks
byte-identically, which is why the fix lives at the call site, not at
the let gate.

The fix (emit_call, codegen-only, +50 lines, uniqueness.rs untouched).
After a non-tail call, for each argument that is itself an
is_rc_heap_allocated owned temporary (Own-ret call / fresh escaping
ctor / lambda — never a plain Var alias, whose owner is some other
binder dropped elsewhere) AND lands in a Borrow-mode param slot, emit
a drop of that argument's SSA through the same per-type drop symbol the
let gate uses (drop_symbol_for_binder). Per-param modes are read from
the Ail-level Type::Fn.param_modes in module_def_ail_types (which
survives monomorphisation: RawBuf_get__Int -> [Borrow, Implicit]);
note FnSig itself carries only LLVM type strings, not modes.

Why it cannot double-drop or drop a live value:
- set's buffer param is Own, not Borrow, so the rule does not fire for
  the new->set link; the single drop lands on the final temp after get.
  set is in-place (same pointer in and out), so that one drop frees the
  one slab exactly once.
- the rule excludes Var args, so it never races the let/Own-param
  emitters for a named binder.
- the dropped SSA is an input arg, always distinct from the fresh call
  result, and the rule is gated on !tail, so it can never dec a value
  that flows out as the surrounding fn's result.

Known limitation (advisory, no fixture exercises it, stated in a code
comment): a musttail call passing an owned temp into a borrow slot
still leaks — a tail call terminates the block, leaving no post-call
emission point.

Verified: full workspace green; ail e2e 95/95 incl. the 4 raw_buf
fixtures (60/4.0/42/reject) and the now-GREEN drop test; codegen
intercepts_bijection_with_intrinsic_markers green.
2026-05-30 10:49:49 +02:00
Brummel 47efbdb5c0 test: RED owned-RawBuf drop-leak repro (refs #43)
raw_buf_owned_drop_balances_rc_stats + examples/raw_buf_drop_min.ail:
a single owned 1-slot Int RawBuf, written once and read once. Prints
10 correctly but under AILANG_RC_STATS shows allocs=2 frees=1 live=1 —
the slab leaks. Asserts stdout=="10" (green) and live==0 (RED until
the owned-temp drop call is emitted).

Root cause (verified, supersedes #42's disproven diagnosis). The
leaked value is the anonymous owned temporary produced by RawBuf.set
(own-ret, in-place: intercepts.rs emit_rawbuf_set_int does `ret ptr
%b`, same slab as its input), then passed to RawBuf.get whose RawBuf
param is `borrow`. After get borrows and returns an i64 the temp is
dead, but no one drops it: codegen's only two scope-close drop
emitters cover Term::Let binders (lib.rs:1785-1822) and Own fn-params
(lib.rs:1426-1502); the general call lowerer emit_call (lib.rs:2552)
splices args without inspecting per-arg own/borrow modes and emits no
post-call drop for an owned arg landing in a borrow slot.

Binder-independent, contra #42: the fully inline form with no `let`
at all produces byte-identical leaking IR (no Term::Let exists, so the
1785 gate is never reached). The defect is the drop-CALL-site emission
raw-buf.4 deferred to raw-buf.5; uniqueness.rs is not implicated.
2026-05-30 10:41:52 +02:00
Brummel 8ac8756682 iter raw-buf.4 rawbuf-payload-termnew-desugar (DONE, drop-call deferred to .5): RawBuf works, prints 60 (refs #7)
Ships RawBuf end-to-end as a consumer of the raw-buf.3 scope-qualified
intrinsic mechanism, plus the general Term::New construction sugar.
Working subset committed; the drop-CALL ratification (no-leak) is
re-carved to raw-buf.5 (see b49f57d) — the flat drop FUNCTION ships here,
its call-insertion needs a codegen resolution mechanism.

What ships (all green):
- raw_buf kernel-tier submodule (crates/ailang-kernel/src/raw_buf/):
  RawBuf TypeDef (param-in {Int,Float,Bool}, ctor B a) + four
  (intrinsic) ops new/get/set/size. parse_raw_buf + workspace injection
  (kernel-tier auto-imported); workspace count 4 -> 5.
- 12 scope-qualified INTERCEPTS entries RawBuf_{new,get,set,size}__{Int,
  Float,Bool} + emit fns: new allocs an @ailang_rc_alloc slab
  (8-byte i64 size header + n*width element bytes), get/set
  getelementptr+load/store at offset 8 + i*width, size loads the header.
  Mechanical on the raw-buf.3 naming + bijection machinery; bijection
  green (4 markers -> 12 entries).
- Term::New desugar (crates/ailang-core/src/desugar.rs): (new T <types>
  <values>) -> (app T.new <values>), runs before check so the
  type-scoped callee flows through the raw-buf.3 scope threading to
  RawBuf_new__T; drops the NewArg::Type (element type inferred from
  use). Both codegen Term::New deferral arms removed (replaced with
  unreachable!). Ratified by new_stubt_builds_and_runs.
- Flat intrinsic-storage drop FUNCTION @drop_raw_buf_RawBuf (single
  @ailang_rc_dec on the slab), emitted for any TypeDef whose new op is
  (intrinsic)-bodied — distinguishes RawBuf (intrinsic new) from StubT
  (real-body new -> generic ADT drop).
- E2E: raw_buf_int (-> 60), raw_buf_float (-> 4.0), raw_buf_bool
  (-> 42), raw_buf_param_in_reject (param-not-in-restricted-set).

In-scope additions beyond the literal plan (both sound, ratified):
- qualify_workspace_term now normalises a monomorphic cross-module
  type-scoped callee (StubT.new) to <home>.f; without it
  new_stubt_builds_and_runs cannot build (StubT.new is monomorphic, so
  the raw-buf.3 poly-mono path mints no symbol). Same-module + polymorphic
  callees carved out.
- diagnostic-behaviour: (new T ..) missing-new-op now surfaces
  type-scoped-member-not-found (desugar runs before check, bypassing
  synth's Term::New arm); new-arg-kind-mismatch obsoleted. Two unit
  tests updated to the new behaviour. param-in reject unaffected.

The 5 .ll snapshots gained @drop_raw_buf_RawBuf (+ partial) — injecting
raw_buf emits its drop fn into every program; benign, regenerated to the
final IR. (The plan's "snapshots stay green" assumption was wrong.)

Verification (orchestrator, this session): cargo test --workspace 676
passed / 0 failed / 2 ignored. raw_buf_int_e2e prints 60; bijection,
round-trip, new_stubt, float/bool/reject all green. The raw_buf_no_leak
test is NOT in this commit — it moves to raw-buf.5 with the drop-call
resolution that makes it pass (the slab currently leaks at scope close;
tracked, fixed next iter; milestone not released until close).
2026-05-30 00:49:51 +02:00
Brummel b49f57d9c6 spec: raw-buf — re-carve drop ratification to raw-buf.5, retirement to .6 (refs #7)
raw-buf.4 (RawBuf payload + Term::New desugar) implemented and about to
land, but it surfaced that the drop ratification was mis-scoped: the
flat drop FUNCTION is emittable in .4, but the drop CALL needs a codegen
resolution mechanism the .4 plan did not scope. An owned RawBuf binder's
value is a cross-module type-scoped intrinsic call ((app RawBuf.set ..) :
own (RawBuf a)); codegen's is_rc_heap_allocated only marks an App binder
drop-trackable when synth_callee_ret_mode resolves the callee's Own mode,
but codegen synth_arg_type has no TypeDef-first / cross-module-mono
resolution ladder (unlike the checker's lib.rs:3465), so the binder is
non-trackable and no drop call is inserted. A second site
(uniqueness::infer_module's per-module globals) misses the cross-module
borrow mode too.

Re-carve (six iterations; .1-.4 done, .5/.6 remain):
  raw-buf.4 — RawBuf payload + Term::New desugar + flat drop FUNCTION
              (DONE). Worked program prints 60; Float/Bool/reject ship.
  raw-buf.5 — owned cross-module type-scoped drop-call resolution: a
              TypeDef-first + cross-module-mono arm in codegen
              synth_arg_type feeding is_rc_heap_allocated /
              synth_callee_ret_mode / drop_symbol_for_binder, plus
              cross-module op visibility in uniqueness::infer_module.
              Ratified by raw_buf_no_leak (live == 0).
  raw-buf.6 — kernel_stub retirement (was .5).

Also documents the raw-buf.4 diagnostic-behaviour change: because the
Term::New desugar now runs before check, (new T ..) with a missing
new-op surfaces type-scoped-member-not-found (more precise) rather than
the prep.2 new-type-not-constructible it supersedes; new-arg-kind-mismatch
is obsoleted (the desugar drops the type-arg). Same rejection conditions,
preserved. And corrects the @ailang_rc_release spec slip to the real
symbol @ailang_rc_dec.

The drop-call resolution is its own iteration for the same reason
raw-buf.3 became a mechanism prep: it is a codegen-resolution mechanism
(parity with the checker's type-scoped/cross-module ladder), separable
from the RawBuf payload, and isolating it keeps the resolution change
off the .4 payload diff.
2026-05-30 00:49:28 +02:00
Brummel 9ff1f22d42 plan: raw-buf.4 RawBuf payload + Term::New desugar (refs #7)
Four tasks. Task 1: raw_buf manifest (source.ail + mod + lib re-export)
+ ailang-surface wiring (parse_raw_buf + injection) + round-trip +
workspace count 4->5 — checkable, no codegen (raw_buf not yet in the
bijection collector list, so its markers are uncollected, bijection
stays green). Task 2: the general Term::New -> (app T.new <values>)
desugar (runs before check, so the type-scoped callee flows through the
raw-buf.3 scope threading to RawBuf_new__T), drops the NewArg::Type
(element type inferred from use — no type-ascription term exists),
removes both codegen deferral arms; ratified by a (new StubT 42)
build-and-run. Task 3: the 12 scope-qualified RawBuf_op__T entries +
emit fns (alloc/gep/load/store over an @ailang_rc_alloc slab, Int emits
in full + Float/Bool by an exact element-type/width substitution table)
+ a flat intrinsic-storage drop + raw_buf added to the bijection
collector module list (marker<->entry lockstep closes here). Task 4:
the E2E (int -> 60, float, bool, param-in reject, drop leak).

plan-recon resolved both make-or-break risks favourably: (A) the
alloc/load/store emit has a clean mirror (emit_eq_str does
locals-by-position -> fresh_ssa -> gep -> call -> ret; @ailang_rc_alloc
returns the payload ptr with rc-header auto-prepended); (D) desugar runs
BEFORE check/synth/mono (prepare_workspace_for_check), so Term::New
becomes (app RawBuf.new ..) before synth's type-scoped resolution sets
scope=Some("RawBuf") -> reaches the raw-buf.3 RawBuf_new__Int mint. No
checker tweak needed.

Three orchestrator design calls (spec underspecified the codegen
detail): (1) drop discriminator = derived signal "the TypeDef's `new`
op is (intrinsic)-bodied" -> flat @ailang_rc_dec drop; correctly
separates RawBuf (intrinsic new) from StubT (real-body new), where a
param_in heuristic would misclassify StubT (also param_in). No schema
change, no hash-pin. (2) @ailang_rc_release does not exist -> the real
symbol is @ailang_rc_dec (spec slip corrected). (3) Bool = 1 byte per
spec; the 12 emits are per-element-specialised so each hardcodes its
width (Int/Float 8, Bool 1) + store type (i64/double/i1); the i1
store/load syntax is verify-first, raw_buf_bool_e2e is the catch.

Baseline after raw-buf.3 is 670; gates step 670->671 (round-trip)
->672 (StubT desugar) ->677 (5 RawBuf E2E). kernel_stub stays
(retirement is raw-buf.5).
2026-05-29 19:53:36 +02:00
Brummel fd37fa6489 iter raw-buf.3 typescoped-intrinsic-mechanism (DONE 2/2): scope-qualified mono symbols + bijection expansion (refs #7)
New language mechanism: a type-scoped polymorphic top-level (intrinsic)
op now mints a scope-qualified mono symbol (StubT_peek__Int, not the
colliding bare peek__Int), and the intrinsic<->intercept bijection
expresses one such polymorphic marker as its N per-param-in-element
entries. Ratified standalone on the stub via a new StubT.peek op; no
RawBuf, no Term::New, no codegen E2E this iteration (RawBuf consumes the
mechanism in raw-buf.4).

Task 1 — scope threading. Added scope: Option<String> to FreeFnCall +
MonoTarget::FreeFn + the synth free_fn_owner tuple. Populated Some(prefix)
ONLY on the type-scoped T.f resolution branch (lib.rs:3538, gated on
type_home.is_some()); None on every local / same-module / implicit-import
branch, so existing bare-resolved symbols stay byte-identical. Consumed
via a scoped_base helper at both mono-symbol mint sites (synthesise +
rewrite, which read the same MonoTarget → automatically in lockstep) and
folded into mono_target_key so a scoped op and a bare op of the same name
never dedup-collide.

Task 2 — ratifier + bijection. Added StubT.peek to the stub source;
extended workspace_intrinsic_markers with a type-scoped-poly arm that
finds the unique same-module TypeDef referenced in the fn signature and
expands over its param-in set, building the T_f__<elem> strings via the
SAME mono_symbol_n on Type::Con elems so collector and mint agree
byte-for-byte; registered StubT_peek__Int/Float entries + emit fns;
extended kernel_stub_module_round_trips to cover peek; added
mono_scoped_symbol integration test (own-param calls, no Term::New, no
codegen — asserts both scoped symbols minted and bare peek__Int absent).

Latent bug fixed inline (regression caught at the full-suite gate, RED via
the existing escape_local_demo E2E). kernel_stub is implicitly imported,
so poly_free_fn_names_for_module unconditionally added peek's bare name to
every consumer; a consumer with its OWN monomorphic peek then had its
local call mistreated as a poly-free-fn site, over-advancing the mono slot
cursor and misaligning a print target. Fix: suppress the bare
implicit-import name when the current module declares a same-name global,
mirroring synth's resolution ladder (same-module global beats
implicit-import). Applied in lockstep to both poly_free_fn name + and
constraint-count maps; dot-qualified / type-scoped spellings stay
unconditional. This was a pre-existing inconsistency between mono's
name-set and synth's resolution that peek (first implicitly-imported poly
free fn colliding with a fixture-local name) exposed.

Plan deviations (all sound): collect_con_heads omits Borrow/Own recursion
(no such Type variant — borrow/own are ParamMode on Type::Fn, verified
ast.rs:752); scope bound via the existing synthesise_mono_fn_for_free_fn
MonoTarget destructure rather than a new param; the mono-pin fixture uses
own params (borrow + peek-returns-a trips consume-while-borrowed; peek is
never instantiated so the mode is immaterial to the scope-symbol
ratification).

Verification (orchestrator, this session): cargo build --workspace clean;
cargo test --workspace 670 passed / 0 failed / 2 ignored (669 baseline +
the one new mono test). Bijection green (1 marker -> 2 entries),
round-trip green, escape_local_demo green. .ll snapshots unchanged (peek
polymorphic -> never instantiated without a call site). Existing eq__*/
compare__*/float_* symbols byte-identical (mono_hash_stability green).
2026-05-29 19:39:35 +02:00
Brummel 8508182f84 plan: raw-buf.3 type-scoped polymorphic intrinsic mechanism (refs #7)
Two tasks. Task 1 threads a TypeDef scope through the free-fn mono path:
a scope: Option<String> field on FreeFnCall + MonoTarget::FreeFn,
populated Some(prefix) only on the type-scoped T.f resolution branch
(lib.rs:3535, gated on type_home.is_some()), None everywhere else;
consumed at the two mono-symbol mint sites via a scoped_base helper
(both read the same MonoTarget → lockstep) and folded into
mono_target_key. Result: StubT.peek @ Int mints StubT_peek__Int, not
the colliding bare peek__Int; existing bare-resolved symbols unchanged
(669-gate is the no-regression backstop).

Task 2 adds the StubT.peek ratifier op to the stub source, extends the
bijection collector to expand a polymorphic type-scoped intrinsic over
its TypeDef's param-in set (building the same T_f__<elem> strings via
mono_symbol_n on Type::Con elems, so collector and mint agree
byte-for-byte), registers StubT_peek__Int/Float entries + emit fns,
updates kernel_stub_module_round_trips, and adds a mono-symbol
integration test (borrow-param calls, no Term::New, no codegen).

plan-recon resolved the make-or-break unknown favourably: the TypeDef
scope is discarded at lib.rs:3535 but fully available there (prefix +
type_home live) — a clean thread-through, not a resolution
re-architecture. Three orchestrator design calls folded in: peek's emit
is a plausible signature-correct stub, unit-ratified only (never
instantiated in .3, no Term::New to build a StubT; RawBuf's emits in .4
are the E2E-verified ones; peek retires in .5); the exact
llvm_type(borrow StubT Int) string is an implementer verify-first step
(eq__Unit precedent); scope-trigger is the call path (not signature,
which would perturb bare-called fns like length), scope-value is the
prefix, collector infers from signature — they agree by construction
for single-TypeDef kernel modules, bijection + 669-gate backstop.

peek Form-A verified to parse+check this session under a probe module
(ok, 32 symbols / 3 modules). Final gate 670 (669 + 1 new mono test);
.ll snapshots stay green (peek polymorphic → no instantiation without a
call site).
2026-05-29 19:25:04 +02:00
Brummel d2885c7ae6 spec: raw-buf — re-carve .3/.4/.5, type-scoped polymorphic intrinsic prep (refs #7)
Second re-carve. Planning raw-buf.3 (via plan-recon) surfaced that
RawBuf's ops are a THIRD intrinsic shape the intrinsic-bodies mechanism
never handled: type-scoped polymorphic top-level intrinsics (forall a,
param-in {Int,Float,Bool}, called as RawBuf.get). The existing bijection
+ symbol story covers only monomorphic top-level intrinsics (answer,
float_*) and per-type class-method instances (eq__Int).

The gap (both confirmed in source by recon + grounding-check):
- mono_symbol_n mints <base>__<T> from the bare fn name, so RawBuf.get
  @ Int → get__Int — the RawBuf scope never enters the symbol;
  new/get/set/size @ Int would collide with any other poly free fn of
  those (very common) names.
- the bijection collector's Def::Fn arm records the bare name "get" as
  one marker, matching neither the per-type entries nor their symbols;
  one polymorphic marker must map to N per-element entries, which the
  1-marker-to-1-entry bijection cannot express.

So raw-buf.3 is no longer "add 12 table rows" — it is a new language
mechanism. Re-carve (3 remaining iterations):
  raw-buf.3 — type-scoped polymorphic intrinsic mechanism: scope-
              qualified mono symbols (RawBuf_get__Int) + bijection-
              collector expansion over param-in. Built and ratified
              standalone on the stub (a StubT.peek op + its 2 scoped
              entries + mono/bijection unit tests), the prep pattern
              prep.1/.2/.3 used. No RawBuf, no Term::New dependency.
  raw-buf.4 — RawBuf payload (module + 12 scoped entries + drop) +
              Term::New desugar ((new RawBuf ...) sugar, removes both
              deferral arms). Pure consumer of .3. Worked program → 60.
  raw-buf.5 — kernel_stub retirement (peek + answer + stub leave;
              RawBuf carries all roles).

Decided design (Option A): scope-qualified symbols, not bare. Rationale
is semantic — the type-scoped call convention RawBuf.get should carry
through to a collision-free, IR-legible symbol; bare get__Int is a
latent collision landmine on the most-reused op names. Removing that
collision class is itself feature-acceptance criterion-3 evidence.

The raw_buf module Form-A in § Concrete code shapes is gate-verified
(ail check → ok, 35 symbols / 3 modules). Grounding-check PASS: all 10
current-behaviour assumptions ratified by named green tests; the
Term::New codegen-deferral (lib.rs ~2096 + ~3298) is the same
about-to-be-deleted prep.2 transient, reported-not-blocked (consistent
with the override logged on 3ec406e).
2026-05-29 19:10:19 +02:00
Brummel fbdbe740e6 iter raw-buf.2-kernel-rename (DONE 2/2): ailang-kernel-stub → ailang-kernel family-crate (refs #7)
Pure crate rename, zero behavioural change. ailang-kernel-stub becomes
the ailang-kernel family-crate: a re-export hub (src/lib.rs) plus one
submodule per kernel-tier module (today only kernel_stub:
src/kernel_stub/{mod.rs, source.ail}). raw-buf.3 plugs raw_buf in as a
sibling submodule; this iter only builds the home.

Task 1 (atomic — the rename breaks the build until every site is
threaded):
- git mv crates/ailang-kernel-stub → crates/ailang-kernel.
- Carved the STUB_AIL Form-A body verbatim (byte-identical, verified
  via diff against HEAD's raw string) into src/kernel_stub/source.ail,
  loaded by mod.rs via include_str!. The answer (intrinsic) fn is
  byte-preserved — its INTERCEPTS bijection partner stays pinned.
- lib.rs is now the hub: `pub use kernel_stub::SOURCE as STUB_AIL;`.
  The public symbol STUB_AIL is preserved, so ailang-surface and the
  bijection test bind to it unchanged.
- 8 compile sites threaded across 6 files: Cargo package name,
  workspace member + dep-alias, ailang-surface dep, loader.rs
  use-paths (ailang_kernel_stub → ailang_kernel). Cargo.lock
  auto-regenerated.

Task 2 (doc/ledger honesty, no build impact):
- design/INDEX.md, CLAUDE.md code-layout row + lockstep-pair row,
  design/models/0007 ×2 — crate-path strings updated to the new
  ailang-kernel/src/kernel_stub path.
- Scope note: the spec's raw-buf.2 Components row named only
  design/INDEX.md + the CLAUDE.md code-layout row. plan-recon found two
  more present-tense crate-path refs (CLAUDE.md:312 lockstep row,
  model 0007:8/235). Folded them in per the honesty-rule — a rename
  that leaves stale present-state paths is an incomplete rename.
  Path-only; the retirement narrative stays for raw-buf.4.

The AILang module name kernel_stub (the Form-A string + parse_kernel_stub
fn) is deliberately unchanged — only the crate identifier moved.

Verification (orchestrator, this session): cargo build --workspace
clean; cargo test --workspace 669 passed / 0 failed / 2 ignored
(baseline held exactly — no test added/removed). Carve byte-identity
confirmed by diff; no stale ailang-kernel-stub / ailang_kernel_stub
refs remain in-tree (git grep, excl. history + lockfile). The four
rename-invisible ratifiers (kernel_stub_module_round_trips,
intercepts_bijection_with_intrinsic_markers, .ll snapshots,
workspace_pin) all green via the preserved re-export.
2026-05-29 18:39:36 +02:00
Brummel 395a40f3e7 plan: raw-buf.2-kernel-rename — atomic crate rename + family-crate reshape (refs #7)
Two tasks. Task 1 (atomic): git mv ailang-kernel-stub → ailang-kernel,
carve the STUB_AIL Form-A body verbatim into
src/kernel_stub/source.ail (incl. the answer (intrinsic) fn — a
perturbed byte shifts the .ll snapshots + kernel_stub_module_round_trips),
add mod.rs (include_str!) + lib.rs hub (pub use kernel_stub::SOURCE as
STUB_AIL), thread all 8 compile sites across 6 files (Cargo package +
workspace member + dep-alias + ailang-surface dep + loader.rs
use-paths), end with cargo build + cargo test green. Task 2: doc/ledger
crate-path honesty fixes (INDEX, CLAUDE.md code-layout + lockstep rows,
model 0007) — path-only, retirement narrative left for raw-buf.4.

Zero behavioural change; public symbol STUB_AIL preserved via the
re-export so ailang-surface + the bijection test bind unchanged. NO
raw_buf submodule (that is raw-buf.3).

plan-recon mapped 8 compile-breaking sites + 5 doc sites (two beyond
the spec's named row list — CLAUDE.md:312 lockstep + model 0007:8,235 —
folded in per honesty-rule). Baseline measured this session: 669
passed / 0 failed / 2 ignored (not the stale 667 from the pre-recarve
0105 plan; intrinsic-bodies added 2 tests).
2026-05-29 18:34:47 +02:00
Brummel 3ec406e687 spec: raw-buf — re-carve .2/.3/.4 post intrinsic-bodies (refs #7)
raw-buf.1 (intercept registry) shipped (140a0c0). The intrinsic-bodies
milestone (#9) then landed and pulled the foundation out from under the
original raw-buf.2/.3 split, so this revises the spec.

Two foundation changes from intrinsic-bodies:

1. The placeholder-body convention the original spec leaned on
   ((body x) round-trip stubs) is gone. prelude.ail now uses
   (intrinsic) markers, and check_fn (lib.rs:2173) typechecks every
   non-intrinsic body including kernel-tier ones. RawBuf.get with a
   placeholder body (declared (ret a), body constructs a RawBuf) is now
   a hard type error — get/new/set/size MUST be (intrinsic).

2. An (intrinsic) marker now requires a matching INTERCEPTS entry as a
   lockstep pair (intercepts_bijection_with_intrinsic_markers). The
   "manifest visible / codegen deferred" intermediate state the original
   raw-buf.2 was designed to ship is forbidden by that invariant — the
   marker and its codegen entry must land in the same iteration.

Re-carve (3 remaining iterations, retirement isolated):
  raw-buf.2 — kernel family-crate rename ailang-kernel-stub →
              ailang-kernel. Pure refactor, zero behavioural change.
  raw-buf.3 — RawBuf end-to-end: raw_buf module ((intrinsic) markers)
              + 12 INTERCEPTS entries + Term::New desugar + drop +
              ailang-surface wiring + E2E. Manifest+codegen land
              together. Workspace count 4 → 5.
  raw-buf.4 — kernel_stub retirement: RawBuf subsumes every
              ratification role (Term::New, param-in, kernel-tier
              auto-import, intrinsic); answer entry + stub removed,
              count 5 → 4.

Preserved unchanged: Goal, slab layout, feature-acceptance argument.

The raw_buf module Form-A source in § Concrete code shapes is
gate-verified: ail check → ok (35 symbols across 3 modules); the four
(intrinsic) markers are legal because the module is (kernel).

Grounding-check: 8/9 load-bearing current-behaviour assumptions
ratified by named green tests. The single override is the Term::New
codegen-deferral arm (lib.rs:2094 + sibling at lib.rs:3296, the latter
surfaced by the grounding agent) — a transient prep.2 marker that
raw-buf.3 deletes, not a relied-upon invariant; forward-ratified by
raw-buf.3's build-and-run E2E. Override logged, not a discard.
2026-05-29 18:26:59 +02:00
Brummel 6ccc756c0f audit + close: intrinsic-bodies — honest prelude docs + lockstep table + stale-model fix (refs #9)
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.
2026-05-29 17:56:10 +02:00
Brummel caa3618c3e iter intrinsic-bodies.2-migration-lock (DONE 4/4): prelude → (intrinsic) + bijection pin (refs #9)
Second and final iteration of the intrinsic-bodies milestone. Migrates
the 13 authored prelude dummy bodies to (intrinsic), rebaselines the two
hash pins that move, and locks the registry to the source with a
bijection. Behaviour-preserving: the codegen intercepts emit identical
IR; the prelude placeholder bodies were already dead (intercepted by
name before lower_term, since raw-buf.1).

What landed (4 tasks):

  Task 1 — examples/prelude.ail: 13 authored dummy bodies → (intrinsic).
    7 Eq/Ord instance methods (eq Int/Bool/Str/Unit, compare
    Int/Bool/Str) keep their lambda shell (params/ret = the method's
    local signature, Design X); the inner (body false)/(body true)/
    (body (term-ctor Ordering EQ)) becomes (intrinsic). 6 float_* fns
    ((body false) → (intrinsic) in the fn body slot). The honesty-rule
    infraction the milestone exists to fix is now closed: no prelude
    body lies about what runs.

  Task 2 — hash rebaselines (the prelude bytes changed):
    prelude module hash  af372f28c726f29f → 2ea61ef21ebc1913
    eq__Int       86ed4988438924d3 → cc7b99b63d1e44ae
    eq__Bool      d62d4d8c51f433f8 → fd0412f127986512
    eq__Str       3d32f377c66b03e0 → fa269285754a52da
    compare__Int  6d6c20520766368b → 0a02bd9effc9746c
    compare__Bool 02b64e8fadc913eb → d0dc108dacf4e543
    compare__Str  9645929d53cd3cc9 → d1419595dc52a456
    The 4 show__* mono pins did NOT move (Show bodies are real).

  Task 3 — intercepts.rs: registry_contains_all_legacy_arms (one-
    directional, hardcoded 18-name list) replaced by
    intercepts_bijection_with_intrinsic_markers. The in-source test
    walks prelude + kernel_stub pre-mono for Term::Intrinsic markers,
    recovers each marker's codegen symbol (mono_symbol(method, type) for
    instance methods; the fn name for top-level float_*/answer), and
    asserts a bijection over the intrinsic-backed class: (A) every
    marker resolves to an INTERCEPTS entry, (B) every INTERCEPTS entry
    not on the optimisation-only allowlist has a marker, plus a guard
    that the allowlist names are themselves registered. The allowlist is
    the 5 *__Int icmp-family entries, which intercept the monomorphised
    specialisation of the real-bodied polymorphic lt/le/gt/ge/ne — an
    optimisation, not a compiler-supplied body, so no marker. The pin
    passing independently confirms Task 1 missed no prelude site.

  Task 4 — confirmed no codegen path lowers an intercepted body (already
    true since raw-buf.1: try_emit_primitive_instance_body matches by
    name before f.body is inspected). Refreshed the now-accurate comment
    at lib.rs:1310-1319. design/contracts/0007-honesty-rule.md needed NO
    edit — it is a general present-tense rule and does not name the
    prelude dummies (confirmed by grep), so editing it would have been
    invented work.

Verification:
  cargo test --workspace → 669 passed, 0 failed (post-.1 baseline held;
    one test replaced net-0).
  Behaviour-preservation ratifiers GREEN (the safety net):
    eq_primitives_smoke_compiles_and_runs,
    compare_primitives_smoke_prints_1_2_3_thrice (e2e.rs);
    float_compare_smoke_prints_true_true_false (float_compare_smoke_e2e.rs);
    eq_ord_polymorphic_runs_end_to_end (eq_ord_e2e.rs).
  Bijection pin GREEN. Both hash pins GREEN at the new baselines.
  bench/check.py + compile_check.py → 0 regressed.

Plan-text imprecision (no outcome impact, noted for the record): Task 1
Step 5 wrote `--test e2e` for all four ratifiers, but
float_compare_smoke_prints_true_true_false and
eq_ord_polymorphic_runs_end_to_end live in their own test targets
(float_compare_smoke_e2e.rs, eq_ord_e2e.rs). The verification-filter
self-review checked that the fn names exist, not that they sit in the
named target — a sharper form of the filter-zero discipline. The
implementer ran each in its real target; all four green.

Milestone intrinsic-bodies is now feature-complete (.1 mechanism +
.2 migration+lock). Audit + close follow.
2026-05-29 17:46:50 +02:00
Brummel 298fc2d36f plan: intrinsic-bodies.2-migration-lock — 4-task prelude migration + bijection pin (refs #9)
Decomposes intrinsic-bodies.2 (parent spec § Architecture points 6-8)
into 4 tasks + a final gate:

  Task 1 — migrate the 13 authored prelude dummy bodies to (intrinsic):
    7 Eq/Ord instance methods (inner (body false)/(body true)/
    (body (term-ctor Ordering EQ)) → (intrinsic), Design X lambda-body
    placement) + 6 float_* fns ((body false) → (intrinsic)). Gated by
    round-trip + the 4 eq/compare/float E2E ratifiers staying green
    (behaviour-preserving: the intercepts emit identical IR).
  Task 2 — rebaseline the two moving hash pins: prelude_module_hash_pin
    (prelude module hash) and mono_hash_stability's 6 eq/compare
    def-hashes (capture-from-failure, replace the constant). The 4
    show__* pins do NOT move.
  Task 3 — replace the one-directional registry_contains_all_legacy_arms
    pin with intercepts_bijection_with_intrinsic_markers: an in-source
    test that walks prelude + kernel_stub pre-mono for Term::Intrinsic
    markers, recovers mangled names (mono_symbol for instance methods,
    fn name for top-level), and asserts the bijection over the
    intrinsic-backed class (14) with the 5-name *__Int optimisation-only
    allowlist. Both directions + a stale-allowlist guard.
  Task 4 — confirm no codegen path lowers an intercepted body (already
    true post-.1: intercept-by-name precedes lower_term), delete the
    stale dummy-body comment at lib.rs:1310-1319, and conditionally edit
    0007-honesty-rule.md ONLY if it names the dummies (recon: it does
    not — a general rule; no forced edit).

Recon-driven plan decisions:

1. The bijection pin lives in intercepts.rs's in-source #[cfg(test)]
   mod tests, NOT a crates/ail/tests integration test. Visibility
   forces it: the pin needs INTERCEPTS (pub(crate) in codegen, in-source
   only) AND the parse hops (ailang-surface dev-dep). Verified
   ailang-surface does not dep ailang-codegen, so there is no
   dev-dep cycle blocking the in-source test from calling parse_prelude
   (the dev-dep-cycle hazard that bit pd.2.4/pd.3.1 does not apply
   here — that was the ailang-core <-> ailang-surface edge).
2. The pin walks PRE-mono (parse_prelude/parse_kernel_stub) and
   reconstructs mangled names via mono_symbol, rather than walking
   post-mono. Post-mono only synthesises USED mono symbols, so a
   post-mono walk would miss any instance method the pin's entry
   fixture does not exercise (e.g. eq__Unit). Pre-mono + mono_symbol
   sees all 14 markers unconditionally.
3. Task 2's hashes are capture-from-failure, not pre-computed — the new
   prelude bytes determine them. The old->new values get recorded in
   the iter commit body by the Boss.

All verification filter strings checked against the tree: the 4 E2E
ratifier fn names, the mono pin name, and the prelude pin target all
resolve to ≥1 real test. No ail/ail-json/ll fenced block in the plan
(the migrated-form snippets are scheme fragments — the (intrinsic) form
is already ratified by .1's kernel_intrinsic_smoke.ail), so the
parse-bytes gate is a documented no-op.

Handoff target: skills/implement on docs/plans/0107-intrinsic-bodies.2-migration-lock.md
2026-05-29 17:37:45 +02:00
Brummel 8301ca3ee8 spec: intrinsic-bodies — correct .2 count + bijection split (refs #9)
Forward-fix on 5b66de7, prompted by plan-recon for intrinsic-bodies.2.
Two spec-vs-reality gaps in the .2 (migration + lock) sections, both
caught before the .2 plan was written:

1. Count. The spec said "18 dummy bodies" migrate to (intrinsic). That
   conflated the INTERCEPTS entry count with authored prelude bodies.
   Reality: examples/prelude.ail carries 13 authored dummy bodies — the
   7 Eq/Ord instance methods (eq Int/Bool/Str/Unit, compare
   Int/Bool/Str) + the 6 float_* free fns. The registry has 19 entries
   (18 legacy + the .1 `answer`); the other 6 are not prelude dummies.

2. The strict bijection cannot hold. lt__Int/le__Int/gt__Int/ge__Int/
   ne__Int (5 INTERCEPTS entries) intercept the monomorphised __Int
   specialisations of the polymorphic free fns lt/le/gt/ge/ne, which
   carry REAL bodies in the prelude (ne = (app not (app eq x y)); the
   four ordering helpers are (match (app compare x y) ...)). Those
   bodies are honest and live — lowered for every non-Int instantiation;
   only the Int specialisation is intercepted for a faster direct icmp.
   They are an optimisation class, not a compiler-supplied-body class:
   no lie, no source body to replace, no (intrinsic) marker. A strict
   bijection over all INTERCEPTS entries would be red for these 5.

Corrections:
- § Architecture point 6: 13 authored prelude sites (named), with the
  5 icmp-family + `answer` explicitly listed as non-prelude / not
  migrated and why.
- § Architecture point 7: the pin splits the registry into
  intrinsic-backed (13 prelude markers + answer = 14) and
  optimisation-only (the 5 *__Int, an explicit documented allowlist).
  The bijection holds over the intrinsic-backed class only; the pin
  loads the workspace + monomorphises to recover mangled names for the
  marker direction.
- § Architecture point 8: reframed from "dead-path removal" to
  "dead-path confirmation" — .1's intercept-by-name already bypasses
  the dummy body before lower_term sees it (committed reality at
  52ff873), so .2 confirms no path lowers an intercepted body and
  deletes stale comments; the .1 Term::Intrinsic escape-guards stay.
- § Components + § Testing: the two moving hash pins named
  (prelude_module_hash_pin.rs; mono_hash_stability.rs's 6 eq/compare
  pins move, its 4 show pins do not); hash_pin.rs carries no
  prelude-derived hash. IR snapshots do not change.

Grounding-check PASS on all five corrected .2 claims against the
shipped .1 baseline (count, the 5 real-bodied helpers, the three hash
pins' behaviour, the already-dead path, the bijection-pin pipeline
reachability). No ail/ail-json/ll fenced block changed — parse-gate a
documented no-op for this revision.

The deeper observation this surfaced — that INTERCEPTS conflates two
concepts (compiler-supplied bodies vs. optimisation of a real body) —
is noted but NOT resolved here; splitting the registry is out of scope
for intrinsic-bodies and would be its own milestone.
2026-05-29 17:31:25 +02:00
Brummel 52ff8738b8 iter intrinsic-bodies.1-mechanism (DONE 8/8): Term::Intrinsic leaf + cross-crate wiring (refs #9)
First iteration of the intrinsic-bodies milestone. Introduces the
Form-A `(intrinsic)` body marker as a new leaf AST term and wires it
through surface, checker, codegen, and a kernel_stub ratifier. The
prelude migration + hard-lockstep pin + dead-path removal are .2.

What landed (8 tasks):

  Task 1 — Term::Intrinsic unit variant (ast.rs), tag "t":"intrinsic"
    via the enum's rename_all=lowercase. Additive: no existing fixture
    carries it, hashes bit-identical. In-core exhaustive-match arms
    (canonical/hash/visit/pretty/desugar/workspace) added as leaves.
  Task 2 — surface parse + print: (intrinsic) as a fn body-slot clause
    and a lambda positional body, mapped to/from Term::Intrinsic.
  Task 3 — cross-crate walker sweep (check/codegen/prose/ail-main):
    leaf no-op/identity arms at every no-wildcard Term match the
    compiler flagged.
  Task 4 — checker: new Env.current_module_kernel_tier flag (m.kernel
    || m.name=="prelude"), set alongside current_module. A def whose
    body is intrinsic (top-level fn OR instance-method lambda, via the
    shared is_intrinsic_body helper) is checked signature-only; an
    intrinsic body outside kernel-tier/prelude is rejected with
    intrinsic-outside-kernel-tier.
  Task 5 — codegen: an intrinsic-bodied fn routes through the existing
    try_emit_primitive_instance_body / intercepts::lookup path; if no
    intercept fired it is an internal error, never a lower_term
    fallthrough. lower_term and the synth walker get Term::Intrinsic
    internal-error arms (an intrinsic body reaching either is an
    escape bug).
  Task 6 — answer intercept (ret i64 42) registered in INTERCEPTS;
    the `answer : () -> Int` intrinsic added to STUB_AIL;
    examples/kernel_intrinsic_smoke.ail added so schema_coverage
    observes Term::Intrinsic in the examples/ corpus.
  Task 7 — E2E ratifier: examples/kernel_answer.ail calls
    kernel_stub.answer and prints 42; answer_intrinsic_builds_and_runs_printing_42
    asserts it end-to-end (source → native).
  Task 8 — design/contracts/0002-data-model.md gains the
    { "t": "intrinsic" } Term entry + fn/lam prose; form_a.md grammar
    note updated.

Verification:
  cargo test --workspace → 669 passed, 0 failed (baseline 667 +2:
    intrinsic_in_user_module_is_rejected, answer_intrinsic_builds_and_runs_printing_42).
  bench/check.py + bench/compile_check.py → 0 regressed.
  Reject E2E (subprocess ail check --json, exit 1, code
    intrinsic-outside-kernel-tier) GREEN.
  Round-trip + hash pins GREEN — Term::Intrinsic is additive, no
    existing fixture carries it, no hash moved.

Three implementation completions beyond the plan (all behaviour-
preserving, surfaced during execution):

1. The signature-only skip had to apply at the mono pass's two
   synth-on-body re-entry sites (collect_mono_targets,
   collect_residuals_ordered), not only check_fn — else an intrinsic
   body hits synth's Term::Intrinsic internal-error guard. Repaired by
   extracting the shared crate::is_intrinsic_body helper and applying
   it at all three synth-on-body paths. Not a representation surprise:
   the same signature-only treatment, more call sites.

2. The compiler-enumerated exhaustive-match set was broader than the
   plan's named grep set (the plan anticipated this and made the sweep
   compile-driven). Extra leaf arms in core desugar/workspace, check
   reuse-as + qualify_workspace_term, codegen synth_with_extras,
   ail/src/main.rs, and four test targets.

3. Fixture corrections: emit_answer needed the body-close
   (block terminator) the plan snippet omitted; kernel_answer.ail's
   main is (ret Unit)(effects IO) using (app print ...) since
   io/print_int does not exist (the plan flagged this for the
   implementer to resolve against real effect-op names).

IR snapshots (hello/sum/list/max3/ws_main.ll) refreshed: purely
additive @ail_kernel_stub_answer fn+adapter+closure, emitted into
every workspace exactly as the pre-existing @ail_kernel_stub_new
already was (kernel_stub is auto-injected; confirmed new was present
in the pre-iter hello.ll baseline). No user-fn IR changed.

The .2 iteration migrates the 18 prelude dummy bodies to (intrinsic),
upgrades registry_contains_all_legacy_arms to a source<->registry
bijection pin, and removes the dead body-lowering path.
2026-05-29 17:21:32 +02:00
Brummel ce0374ac0c plan: intrinsic-bodies.1-mechanism — 8-task Term::Intrinsic cross-crate landing (refs #9)
Decomposes intrinsic-bodies.1 (parent spec docs/specs/0055-intrinsic-bodies.md
§ Architecture points 1-5) into 8 tasks plus a final gate:

  Task 1 — Term::Intrinsic unit variant in ast.rs + the in-core
    exhaustive-match arms (canonical/hash/visit/pretty), enumerated by
    cargo build -p ailang-core (no-wildcard matches break until armed).
  Task 2 — surface parse + print: (intrinsic) as a fn body-slot clause
    and a lambda positional body, mapped to/from Term::Intrinsic;
    round-trip rides the examples/ corpus gate.
  Task 3 — cross-crate walker sweep (check + codegen + prose): leaf
    arms at the sites that match Term::New today, enumerated by
    cargo build --workspace. The two MEANINGFUL arms (codegen lower_term,
    checker body-check) are bridged with a temp unreachable! so the gate
    is green, then replaced by Tasks 4-5 — no deferred-caller across a
    0-error gate.
  Task 4 — checker: env.current_module_kernel_tier flag, signature-only
    body check for an intrinsic body, intrinsic-outside-kernel-tier
    reject (CheckError variant + code() arm). Reject test is subprocess
    `ail check --json` on a temp file, modelled exactly on the verified
    check_json_unbound_var pattern.
  Task 5 — codegen: a Term::Intrinsic body routes through
    intercepts::lookup; never reaches lower_term; lower_term's
    Term::Intrinsic arm is a codegen-internal error.
  Task 6 — `answer` intercept (ret i64 42) + the answer intrinsic in
    STUB_AIL + examples/kernel_intrinsic_smoke.ail so the
    schema_coverage corpus observes Term::Intrinsic (avoids the
    Term::New-in-match-but-not-in-corpus gap).
  Task 7 — E2E ratifier examples/kernel_answer.ail (calls
    kernel_stub.answer, prints 42); build_and_run("kernel_answer.ail")
    asserts stdout 42.
  Task 8 — design/contracts/0002-data-model.md gains the
    { "t": "intrinsic" } Term entry; design_schema_drift mirror stays
    green.

Three plan-time corrections after plan-recon + harness verification:

1. The reject test was first drafted against an invented ailang_check
   API (Workspace::single_with_prelude / check_workspace). Verified
   against e2e.rs:1236 that the established reject pattern is
   subprocess `ail check --json` + exit-1 + JSON code assertion;
   rewrote on a temp file.
2. build_and_run takes the fixture filename WITH .ail extension
   (verified e2e.rs:13-38, existing calls build_and_run("sum.ail")) —
   the ratifier call is build_and_run("kernel_answer.ail").
3. kernel_intrinsic_smoke.ail carries an intrinsic with no registered
   intercept; confirmed no gate builds it (compile_check.py uses a
   curated list, no test builds all examples/*.ail) — it rides only
   the parse-level round-trip + schema-coverage gates, never a build.

Scope guard: .1 does NOT migrate prelude dummies, does NOT upgrade the
registry pin to a bijection, does NOT remove the dead body-lowering
path — all .2. Hashes stay stable in .1 (Term::Intrinsic is additive;
no existing fixture carries it).

Test trajectory: 667 (post-raw-buf.1) → ~669 (+intrinsic_in_user_module_is_rejected,
+answer_intrinsic_builds_and_runs_printing_42; corpus/round-trip
fixtures ride existing dynamic gates).

Handoff target: skills/implement on docs/plans/0106-intrinsic-bodies.1-mechanism.md
2026-05-29 16:55:01 +02:00
Brummel 5b66de77ac spec: intrinsic-bodies — revise AST repr to Term::Intrinsic leaf (refs #9)
Forward-fix on c42034b. plan-recon for intrinsic-bodies.1 surfaced
that the original AST representation — FnDef.body / Term::Lam.body
made Option<Term> plus an `intrinsic: bool` flag — has a ~150-site
blast radius across six crates: every body read/construct site breaks
when a mandatory public field goes optional. That blast radius is the
signal (CLAUDE.md design-rationale rule) that the representation was
wrong, not merely expensive.

The Form-A surface (user's chosen Approach 1) and the Local-Reasoning
semantics (Design X marker placement) are UNCHANGED. Only the internal
AST representation changes, which is orchestrator authority over AST
design.

New representation: a single new leaf Term variant, Term::Intrinsic
({ "t": "intrinsic" }), is the body of a compiler-supplied definition.
FnDef.body (Term) and Term::Lam.body (Box<Term>) keep their existing
types. A def is intrinsic iff matches!(body, Term::Intrinsic).

Three structural reasons (not effort):

1. Established pattern. The project adds new constructs as additive
   Term variants — Term::New, Term::Loop, Term::Recur, Term::Clone,
   Term::ReuseAs all landed this way, documented "strictly additive,
   pre-existing fixtures hash bit-identically" in
   design/contracts/0002-data-model.md. Term::Intrinsic follows it.
   Option A introduced a brand-new pattern (mandatory field → optional)
   absent from the schema.

2. Meaning at the right locus. "This body is compiler-supplied" is a
   property of the body, not the container. Term::Intrinsic sits at the
   body position — fn body, or instance-method lambda body (Design X
   local-signature placement preserved exactly).

3. Illegal state unrepresentable. Option A admitted intrinsic:true with
   body:Some(...), forcing an intrinsic-with-body reject. Under the
   variant a body is either Term::Intrinsic or a real term, never both
   — the reject is deleted, the state cannot occur. This is the same
   make-illegal-states-unrepresentable discipline as the honesty theme
   the milestone exists to serve.

Blast radius collapses from ~150 body-read/construct sites to the
exhaustive match-on-Term arms (canonical/hash/visit + schema_coverage),
which the no-wildcard Term match turns into compile errors until each
gains a Term::Intrinsic case — the project's normal new-variant
discipline.

Sections revised: § Architecture points 1/3/4, § Concrete code shapes
(Implementation shape now shows the leaf variant, not the
Option+flag), § Components, § Data flow, § Error handling (the
intrinsic-with-body row removed), § Testing strategy (the
both-body-and-intrinsic reject test removed; schema_coverage Term::Intrinsic
observation added). The scheme/ail surface examples are byte-unchanged.

Re-ran the brainstorm gates on the revision: Step-7 parse gate green
(both ail blocks exit 0, unchanged); Step-7.5 grounding-check PASS on
the four new load-bearing claims (additive-variant precedent +
contract wording, exhaustive-Term-match mechanism, mono.rs
synthesise_mono_fn destructure unchanged under preserved body type,
Term::Recur as non-reducing-leaf precedent).
2026-05-29 16:45:47 +02:00
Brummel c42034b38d spec: intrinsic-bodies — (intrinsic) Form-A body marker (refs #9)
New milestone, triggered by the raw-buf.2 BLOCKED chain (the .2 work
was discarded; spec 4ad003d and plan 647121c stay on main per the
forward-only rule). The Form-A surface currently forces every fn /
instance-method to carry a (body ...) clause, which produces three
problems the marker resolves:

1. Prelude dummy-body lies. The eq/compare/ne/lt/le/gt/ge instance
   methods ship placeholder bodies — (body false), (body (term-ctor
   Ordering EQ)) — that parse and type-check but never run; codegen
   discards them and emits the intercept (registry shipped in
   raw-buf.1, intercepts.rs). A standing honesty-rule infraction
   (design/contracts/0007-honesty-rule.md): a reader who trusts the
   source is wrong about what runs.

2. Polymorphic kernel-tier fns are structurally impossible. RawBuf's
   get : RawBuf a -> Int -> a needs a placeholder body producing a
   value of type a, and AILang has no value of polymorphic type. The
   dummy-body requirement made the fn unauthorable — what BLOCKED
   raw-buf.2.

3. No surface affordance for "compiler supplies this body". Every
   systems language has one (LLVM declare, Rust extern
   "rust-intrinsic", Haskell foreign import prim, C builtins). The
   intercept registry IS AILang's compiler-supplied-body table;
   (intrinsic) is the surface declaration of membership.

Decomposition (2 iterations, full cut):

  intrinsic-bodies.1 — the mechanism. FnDef.body / Term::Lam.body
  become optional; an additive intrinsic: bool rides each
  (skip_serializing_if, hash-stable when omitted). Form-A parses +
  prints (intrinsic); round-trip gated. Checker checks signature-only,
  rejects body+intrinsic, rejects intrinsic outside kernel-tier /
  prelude (intrinsic-outside-kernel-tier). Codegen routes intrinsic
  defs through intercepts::lookup. Ratified by a throwaway `answer`
  smoke intrinsic in the kernel_stub fixture, end-to-end to native.

  intrinsic-bodies.2 — migration + lock. The dummy bodies swap for
  (intrinsic); a hard-lockstep pin asserts a bijection between
  INTERCEPTS entries and intrinsic markers reachable in the loaded
  workspace (extends raw-buf.1's registry_contains_all_legacy_arms
  from a one-way name check to a two-way source<->registry bijection).
  Dead body-lowering path for intercepted defs removed.

Design decisions locked during brainstorm:

- Marker placement (Design X). For a top-level fn, (intrinsic)
  replaces the (body ...) clause directly — the (type ...) signature
  stays beside it. For an instance method, the marker sits on the
  lambda BODY, not the method: the lambda's typed shell (params / ret)
  IS the method's local signature, and intrinsic drops the body, not
  the signature — exactly as LLVM declare / Rust extern-intrinsic keep
  the full signature. Hoisting the marker to (method eq (intrinsic))
  would erase the local signature (a reader would have to climb to the
  Eq class decl and substitute a := Int), violating local reasoning
  (design/INDEX.md § Goal). The mono pass
  (mono.rs::synthesise_mono_fn) reads params + inner body out of this
  lambda today, so the placement keeps that path unchanged. The Design
  Y alternative was considered and rejected on this signature-locality
  ground.

- Scope guard. (intrinsic) is legal only in (kernel)-tier modules and
  the prelude; user modules are rejected. This is the honesty-rule
  guard at the workspace boundary — user code cannot mark a body as
  compiler-supplied, so the lie cannot re-enter through user modules.

Process note: first spec under the hardened brainstorm pipeline
(Skills issue #1 fixes + the spec_validation parse gates retrofitted
in a2698a8). The Step-7 parse-every-block gate caught a real defect in
the spec's own ail examples on first run (an invalid module-level
(doc ...) head) — the defense line that was absent on raw-buf.2 and
let its unparseable spec bytes through to implement. Grounding-check
PASS on 12 load-bearing assumptions, each ratified by a named green
test.

Out of scope: a user-facing plugin API for custom intercepts (the
scope guard forbids user-module intrinsics); any change to the
raw-buf.1 dispatch mechanism; the raw-buf.2 redo itself (milestone #7,
parked behind this one).
2026-05-29 16:32:36 +02:00
Brummel a2698a80cf config: opt profile into spec_validation parse gates
Skills Issue #1 (compound-hallucination hardening) shipped a
new optional profile slot, `spec_validation.parsers`, that maps
markdown fence labels to validation commands. Three new gates
consume it: brainstorm Step 7 parse-every-block, planner Step 5
parse-the-bytes-you-inline, and the grounding-check code-block
parse pass. A profile written before the slot existed has all
three running as silent no-ops — exactly the failure mode the
raw-buf.2 spec slipped through.

Register three fence labels:
- `ail` → `ail check {file}` — Form-A surface modules. `check`
  is strictly broader than `parse` (catches the parser-novel
  head class AND the type-level rejects an MVP-only construct
  triggers, e.g. polymorphic fn-type without explicit forall),
  so it would have BLOCKED the storage-tag / RawBuf-shorthand /
  implicit-forall chain at Step 7 of brainstorm.
- `ail-json` → `ail check {file}` — JSON AST form; `check`
  auto-detects extension.
- `ll` → `llvm-as {file} -o /dev/null` — LLVM IR snippets in
  codegen specs.

Verified `ail check` works on a standalone Form-A file (no
workspace setup needed; the loader injects prelude + kernel).
2026-05-29 15:14:00 +02:00
Brummel 647121cb8f plan: raw-buf.2-kernel-manifest — 7-task crate-rename + RawBuf submodule + checker-side surface (refs #7)
Decomposes raw-buf.2 (parent spec docs/specs/0054-raw-buf.md
§ Architecture point 2, § Components row 2, § Testing strategy
"raw-buf.2") into 7 atomic tasks:

  Task 1 — crate rename + reshape: crates/ailang-kernel-stub/ →
    crates/ailang-kernel/, restructured as a family-crate with
    src/kernel_stub/{mod.rs,source.ail}; 13 steps covering 8
    compile-checked rename sites plus design/INDEX.md + CLAUDE.md
    path updates.
  Task 2 — add raw_buf submodule: src/raw_buf/{mod.rs,source.ail}
    with the spec's Form-A source (4 fns + 1 TypeDef with
    param-in (a Int Float Bool)); RAW_BUF_AIL re-export.
  Task 3 — wire raw_buf into ailang-surface: parse_raw_buf fn,
    re-export at lib.rs:39, workspace injection alongside the
    existing kernel_stub block, workspace_pin count bump 4→5.
  Task 4 — round-trip test raw_buf_module_round_trips, verbatim
    structural clone of kernel_stub_module_round_trips.
  Task 5 — E2E raw_buf_check_e2e: (con RawBuf (con Int)) consumer
    checks clean.
  Task 6 — E2E raw_buf_param_in_reject_e2e: (con RawBuf (con Str))
    consumer rejected at check with param-not-in-restricted-set.
  Task 7 — E2E raw_buf_build_intercept_missing_e2e: (new RawBuf …)
    consumer accepted at check, rejected at build with the
    existing Term::New deferral message.

Three substantive plan-time decisions resolving plan-recon's
open questions:

1. The intercept-not-registered diagnostic is NOT introduced.
   The spec hedged ("intercept-not-registered: new__RawBuf__Int
   (or the existing Term::New-deferral diagnostic)") between
   shipping a fresh diagnostic and reusing the existing deferral
   at crates/ailang-codegen/src/lib.rs:2075-2078. Plan picks
   reuse: the deferral already names "milestone raw-buf" and is
   self-describing; a new diagnostic would exist for ~1 iter
   (raw-buf.2 → raw-buf.3) before going away — disposable infra.
   Task 7's test asserts on the substring "Term::New requires
   the type's" which is stable in the existing message.

2. In-tree references to crates/ailang-kernel-stub/ AFTER the
   rename — split-scope between raw-buf.2 and raw-buf.3.
   The path changes in raw-buf.2 (the crate moves now), so
   path-references in design/INDEX.md:112 and the CLAUDE.md
   Code-layout table get updated in Task 1 Steps 10-11. The
   retire-language (stub as "ratifying fixture for kernel-
   extension-mechanics" → "retired by raw-buf") stays for
   raw-buf.3 close, per spec § Components row 3.

3. parse_raw_buf gets a mirror re-export at ailang-surface/
   src/lib.rs:39 alongside parse_kernel_stub. Recon's natural
   reading; load-bearing because the new round-trip test calls
   ailang_surface::parse_raw_buf() directly.

Plan honours the project's compile-gate discipline. Task 1's
13 steps thread all 8 rename sites inside the same task —
no deferred caller across the build gate. Task 3 bundles the
workspace_pin count bump with the loader injection that drives
it; the assertion goes 4→5 in the same task that makes it true.

Test-count trajectory: 667 (post-raw-buf.1 baseline) → 667
(Tasks 1, 2, 3 — refactor + wiring, no new test) → 668 (Task 4
round-trip) → 669 (Task 5 check E2E) → 670 (Task 6 reject E2E)
→ 671 (Task 7 deferral E2E).

Handoff target: skills/implement on docs/plans/0105-raw-buf.2-kernel-manifest.md
2026-05-29 11:17:30 +02:00
Brummel 140a0c0ef7 iter raw-buf.1-intercept-registry (DONE 5/5): try_emit_primitive_instance_body → registry table (refs #7)
Pure refactor — first iter of the raw-buf milestone. The
hardcoded 18-arm match in try_emit_primitive_instance_body
(crates/ailang-codegen/src/lib.rs L2841-3147 pre-iter, ~305
lines) becomes a 6-line shim that consults a single registry
table in the new sibling module crates/ailang-codegen/src/intercepts.rs.

Zero behavioural change. The wrapper name survives, all 14
in-source comment-refs to try_emit_primitive_instance_body stay
valid pointers to the canonical dispatch entry.

What landed (5 tasks):

  Task 1 — module skeleton: Intercept struct, INTERCEPTS static
  table (empty), lookup(name), check_sig(intercept, params, ret).
  mod intercepts; wired into lib.rs at L43.

  Task 2 — populate: 18 free emit fns lifted from the legacy
  match arms; INTERCEPTS populated with one entry per name. Three
  Emitter fields (body, locals, block_terminated) and three helper
  methods (emit_compare_ladder, emit_ordering_arm,
  emit_direct_int_icmp_intercept) bumped to pub(crate) so the
  sibling module can reach them. lower_ctor stayed at its existing
  visibility — not consumed by sibling-module fns.

  Task 3 — rewire dispatch: try_emit_primitive_instance_body body
  becomes `match intercepts::lookup(fn_name) { Some(i) => {
  check_sig(i, params, ret)?; (i.emit)(self)?; Ok(true) } None =>
  Ok(false) }`. The 305-line match collapses to 9 lines.

  Task 4 — fold wants_alwaysinline into the registry: every entry
  in INTERCEPTS carries wants_alwaysinline: bool. The predicate
  intercept_emit_wants_alwaysinline now consults the registry for
  branch 1 (the literal 13-name list the predicate hardcoded). One
  source of truth instead of two — closes the silent-drift class
  recon flagged.

  Task 5 — registry_contains_all_legacy_arms pin test: enumerates
  all 18 legacy names + asserts each resolves to a registered
  entry. A half-finished migration that drops any name becomes a
  hard test fail.

Two judgement calls the implementer made (both behaviour-
preserving, both worth knowing):

  (1) eq__Unit param shape: the plan named expected_params: &[]
  per the recon's "params ignored" reading. Reality: the call
  site delivers ["i8","i8"] (Unit lowers to i8 per codegen //!
  header). The registry entry uses ["i8","i8"]; the emit fn
  discards the operand SSAs and returns `ret i1 1` — semantically
  equivalent to the legacy arm that checked only ret_ty and
  ignored params. An inline rustdoc on the entry names the
  rationale.

  (2) intercept_emit_wants_alwaysinline has TWO branches, not one
  as the plan inferred. Branch 1 = the literal 13-name list (which
  the iter's drift-closure intent covers). Branch 2 = a stem-prefix
  carve-out matching {ne|lt|le|gt|ge}__* that covers polymorphic-
  body monomorphizations (lt__Bool, ne__Str, ne__MyADT, …) which
  are NOT registry entries and never were. A literal "replace with
  one-line registry lookup" would silently drop alwaysinline on
  those names, breaking the bench-perf parity established in iter
  operator-routing-eq-ord.1. Branch 2 stays as it was, with a
  fresh comment naming what the registry covers vs. what branch 2
  covers.

  Follow-up consideration (not in this iter): extend the Intercept
  variant to a predicate-only entry shape so branch 2 can fold
  into the registry as well, OR accept the carve-out as the final
  shape. Either is reasonable. Filed as a backlog idea (see Gitea
  issue created post-commit if labelled).

Verification:

  cargo test --workspace      → 667 passed, 0 failed, 2 ignored
                                (baseline was 666 + 2 ignored;
                                +1 from registry_contains_all_legacy_arms)

  Four E2E ratifiers GREEN (named in spec § Testing strategy
  raw-buf.1):
    - eq_primitives_smoke_compiles_and_runs (crates/ail/tests/e2e.rs)
    - compare_primitives_smoke_prints_1_2_3_thrice (crates/ail/tests/e2e.rs)
    - float_compare_smoke_prints_true_true_false
    - eq_ord_polymorphic_runs_end_to_end

  Alwaysinline pins GREEN (regression net for branch-2 carve-out):
    - crates/ailang-codegen/tests/eq_primitives_pin.rs
    - crates/ail/tests/prelude_eq_alwaysinline_ir_pin.rs

  New pin GREEN:
    - intercepts::tests::registry_contains_all_legacy_arms

Diff size: lib.rs −318 / +26 (net −292); intercepts.rs +488 (new
file). Net repository LOC delta: +196. The size reduction in
lib.rs is the wrong proxy — the value is the consolidation: one
table, one drift-closed predicate, one pin test enumerating the
migration surface.

The raw-buf.2 iter will rename crates/ailang-kernel-stub/ to
crates/ailang-kernel/ and reshape it as the family-crate that
hosts raw_buf alongside kernel_stub. The registry shipped here
is the substrate raw-buf.3 will plug RawBuf's 12 codegen
intercepts into.
2026-05-29 11:06:55 +02:00
Brummel d1612d5463 plan: raw-buf.1-intercept-registry — 5-task atomic codegen-registry refactor (refs #7)
Decomposes raw-buf.1 (parent spec docs/specs/0054-raw-buf.md
§ Architecture point 1, § Components row 1) into 5 tasks:

  Task 1 — intercepts module skeleton (3 steps)
  Task 2 — populate the table: 18 emit fns + visibility bumps (9 steps)
  Task 3 — rewire the dispatch site to a thin shim (3 steps)
  Task 4 — fold wants_alwaysinline into the registry (4 steps)
  Task 5 — registry_contains_all_legacy_arms pin test (3 steps)

Three substantive decisions made at plan time beyond what the spec
dictates, surfaced by the plan-recon report:

1. The match arm count is 18, not the ~8 the spec sentence hand-listed
   (eq__Str, compare__Int|Bool|Str, float_*). Five additional arms
   (eq__Int, eq__Bool, eq__Unit, plus the lt|le|gt|ge|ne__Int
   direct-icmp family) shipped after the spec sentence was written.
   All 18 are absorbed by the registry; the pin test enumerates all 18.

2. The `intercept_emit_wants_alwaysinline` predicate at lib.rs:1172 is
   a separate hardcoded name-list that mirrors the dispatch arms.
   This is a silent-drift class (regression seen earlier in the cycle
   on compare__Int perf at +29-47% when the lists diverged). The plan
   folds wants_alwaysinline into the Intercept entry as a per-row bool
   and rewrites the predicate to consult the registry — one source of
   truth instead of two.

3. The wrapper fn `try_emit_primitive_instance_body` survives as a
   thin shim (`match intercepts::lookup(name) { Some(i) => ..., None
   => Ok(false) }`) rather than being deleted. Trade-off: a 6-line
   wrapper vs. a 14-file comment-ref churn. The wrapper wins —
   landmark name preserved, all in-source doc comments stay valid.

Plan honours the project's compile-gate discipline: fn signatures
stay stable throughout (only bodies change), no caller-threading is
deferred across a build gate. Visibility bumps in Task 2
(pub(crate) on three Emitter fields and four helper methods) are
additive and do not change any caller's signature.

Verification commands in each Run step name actual test fns the
plan-recon confirmed exist at specific lines; no filter-zero-match
risk. Pre-flight workspace baseline: 668 tests; post-iter:
669 (the new pin).

Handoff target: skills/implement on docs/plans/0104-raw-buf.1-intercept-registry.md
2026-05-29 10:53:08 +02:00
Brummel 4ad003d21f spec: raw-buf — 3-iter base-extension milestone (refs #7)
First new milestone after kernel-extension-mechanics close.
RawBuf is the canonical kernel-tier *base* extension: mutable,
indexed, bounded-size flat buffer of primitive elements
({Int, Float, Bool}, restricted via prep.3's param-in). It
unblocks two downstream needs already in the backlog:

- series milestone #8 — library-tier ring buffer wrapping RawBuf.
- Embedding-ABI batch-FFI (subsumes closed #2) — the M5
  friction-harvest measured per-tick FFI at ~206 ns/tick on
  real EURUSD volume; RawBuf is the contiguous-slice primitive
  that amortises that per-tick cost.

The milestone also fulfils the whitepaper § "Plugin contract"
commitment: the migration of the hardcoded
try_emit_primitive_instance_body into a registry is triggered
by the first real base extension shipping.

Decomposition (R — registry-first refactor, 3 iters):

  raw-buf.1 — Intercept registry refactor. Lift the existing
  hard-coded match (eq__Str, compare__Int|Bool|Str, float_*) into
  a registry table. Zero behavioural change; ratified by the
  existing E2E suite (eq_primitives_smoke / compare_primitives_smoke
  in e2e.rs, float_compare_smoke, eq_ord_polymorphic). Pure
  refactor — the cleanest possible bisection target.

  raw-buf.2 — RawBuf kernel-tier manifest + checker side. Rename
  crates/ailang-kernel-stub/ → crates/ailang-kernel/ and reshape
  as a family-crate (src/{kernel_stub,raw_buf}/{mod.rs,source.ail});
  public surface preserved via re-exports. Consumer code with
  (con RawBuf (con Int)) passes ail check; ail build fails with
  intercept-not-registered — that diagnostic IS the ratification.

  raw-buf.3 — RawBuf codegen intercepts + Term::New desugar +
  stub retirement. Register 12 element-type-specialised entries
  (4 ops × {Int,Float,Bool}); lower via @ailang_rc_alloc +
  getelementptr + load/store. Desugar (new T args) →
  (app T.new args) so Term::New is eliminated before codegen
  (completes the prep.2 deferral). Retire the kernel_stub
  submodule + the round-trip test at design_schema_drift.rs:743;
  ailang-kernel crate stays as the family-crate for future
  series/matrix/… modules.

Ordering rationale: raw-buf.1 ships zero behavioural change so
its failure mode is "existing tests break" — cleanest bisection.
raw-buf.2 ships the checker-visible surface on an unchanged
codegen substrate, so its failure mode is checker-isolated.
raw-buf.3 lands codegen on a registry that has already absorbed
every legacy intercept, so the RawBuf entries do not co-mingle
with a registry move.

Kernel-tier crate organisation: rejected pro-modul-crate
(crates/ailang-series/, crates/ailang-matrix/, ...) for sublinear
scaling and onboarding locality; rejected sub-Cargo-crates under
crates/ailang-kernel/ (C1) for Cargo-boilerplate overhead with no
real consumer benefit at AILang's scale. C2 (one family-crate,
sub-folders per module, lib.rs re-exports) keeps Cargo dep
surface flat (ailang-surface needs one dep, not N) and stub
retirement is a submodule delete + re-export drop.

Out of scope: bounds checks (caller checks via RawBuf.size per
whitepaper — UB-on-overflow is the contract), RawBuf.fill /
.copy / .iter (deferred until series or Embedding-ABI concretely
asks), record element types (SoA — Forward Axis).

Grounding-check PASS on 10 load-bearing assumptions about
current code state (intercept dispatch site, existing E2E
ratifiers, ailang-kernel-stub crate layout, parse_kernel_stub
location).

Brainstorm → planner handoff: first iteration scope is raw-buf.1
(§ Architecture point 1, § Components row 1).
2026-05-29 10:44:28 +02:00
Brummel a163c8c34a GREEN: pre-pass/resolver asymmetry — same-module bare + kernel-tier qualifier acceptance (closes F1, F3)
Two minimal edits in ailang-check that bring the resolver's
acceptance set into line with what prep.1's workspace pre-pass
(`prepare_workspace_for_check`) actually produces. The pre-pass
itself is unchanged — its qualification rules are correct per
spec § "Realisation mechanism — workspace pre-pass". RED tests
landed in 4d39fdc; both turn GREEN, both fieldtest fixtures
that surfaced the bugs now `ail check` clean.

F1 — same-module type-scoped call (kem_2b_min_repro.ail).
The dot-qualified `Term::Var` arm in `synth_term`
(`crates/ailang-check/src/lib.rs` ~line 3425) was
unconditionally rewriting the resolved fn signature via
`qualify_local_types`, so a call like `(app Counter.value c)`
from inside Counter's home module produced a return type
`<this>.Counter` — but the matching `Term::Ctor` arm
(~line 3644) and the pre-pass itself both leave own-module
type-names bare. The two halves of the resolver disagreed.

Fix: branch on `target_module == env.current_module` — when
true, skip the qualification (the raw type is already in the
form the rest of the resolver speaks); when false, qualify
as before. `owner_types` lookup moved inside the else-branch
since it's only consulted when qualification runs. A short
comment names the pre-pass and the sibling Term::Ctor arm so
a future reader sees the three-way symmetry.

F3 — kernel-tier qualifier acceptance (kem_3_stub_consumer.ail).
The env-builder paths `build_check_env` (~line 1653) and
`check_in_workspace` (~line 1807) force-injected only
`"prelude"` into `env.imports` / `env.module_imports`. The
loader meanwhile derives the implicit-imports list from
`modules.values().filter(|m| m.kernel)` (since prep.3) — so
`kernel_stub` flows into runtime resolution but not into
the checker's qualifier-validity check (~line 1968). Bare
`StubT` got qualified by the pre-pass to `kernel_stub.StubT`,
then bounced off the validity check as "unknown module
prefix".

Fix at both sites: keep the unconditional `"prelude"` literal
injection AND additively insert every workspace module with
`kernel: true` into the per-module import map (skip
self-injection). Idempotent for production (where prelude
also carries `kernel: true`) and preserves the
`bare_name_resolves_through_implicit_import_to_free_fn`
unit-test contract — that test deliberately constructs a
prelude module with `kernel: false` to pin the legacy
"prelude is always implicit" guarantee per se, independent
of the kernel flag. Mirrors the loader's kernel-flag filter,
making the env-builder and the loader speak the same set.

Sibling pin `crates/ailang-check/tests/env_construction_pin.rs`
(the frozen-reproduction copy of `build_check_env`'s
`module_imports` loop) updated in lockstep so it remains a
meaningful drift detector after the env-builder change. The
pin is intentionally designed to track legitimate behavioural
changes.

Verification:
  - tests::type_scoped_call_in_same_module_resolves      GREEN
  - tests::kernel_tier_module_qualifier_resolves_…       GREEN
  - examples/fieldtest/kem_2b_min_repro.ail              ail check ok
  - examples/fieldtest/kem_3_stub_consumer.ail           ail check ok
  - cargo test --workspace                               666 / 0
  (664 prior baseline + 2 RED→GREEN this iter)

Implementer notes: one re-loop on the F3 site after the first
edit replaced the legacy "prelude" literal injection wholesale
with the kernel-flag filter — that broke the unit-test contract
above. Restored the literal AND added the filter on top per the
"don't adapt tests to bugs" memory. No spec-review or
quality-review loops.

prep.1's pre-pass design (spec § "Realisation mechanism") was
correct as written — the symmetry between owner-side
`qualify_local_types` and consumer-side `prepare_workspace_for_check`
holds. What was missing was uniform resolver-side acceptance of
the qualifiers the pre-pass produces. With these two edits, the
following equivalences hold throughout the checker:

  bare T  ≡  <this-module>.T            (F1, same-module rule)
  bare T  ≡  <kernel-module>.T          (F3, kernel-tier rule)

via the loader-driven implicit-imports list that now drives
both the checker's import map and the type-validity check.
2026-05-28 19:36:36 +02:00
Brummel 4d39fdc9c0 RED: same-module type-scoped call + kernel-tier qualifier — pre-pass/resolver asymmetry (refs F1, F3)
Two failing in-source tests added to ailang-check, both pinning
the pre-pass / resolver mismatch surfaced by the fieldtest:

  tests::type_scoped_call_in_same_module_resolves
      F1: `(app Counter.value c)` from inside Counter's own home
      module must check clean. Currently fails with
      `[type-mismatch] main: type mismatch: expected
      <this>.Counter, got Counter` because the dot-qualified
      Term::Var arm at lib.rs ~3430 unconditionally calls
      qualify_local_types on the resolved fn signature even when
      target_module == env.current_module, while the matching
      local Term::Ctor branch (~3644) returns bare `Counter`.
      The two halves of the resolver disagree on whether
      `<this>.T` and bare `T` denote the same type.

  tests::kernel_tier_module_qualifier_resolves_without_explicit_import
      F3: `(con StubT (con Int))` in a consumer type signature
      must resolve without `(import kernel_stub)`. Currently
      fails with `[unknown-module] … unknown module prefix
      `kernel_stub` …` because env.imports / env.module_imports
      (built at ~1797 and ~1667) force-inject only `prelude` from
      the kernel-tier set; the pre-pass freely produces
      `kernel_stub.StubT` qualifiers that then bounce off the
      qualifier-validity check at ~1968.

Shared root: in both bugs the workspace pre-pass synthesises a
qualifier (`<this>.T` for F1, `<kernel_mod>.T` for F3) that some
downstream consumer of the resolver does not accept. The fix
surface is the resolver-acceptance side in both cases — the
pre-pass's qualification rules are correct per the spec's
§ "Realisation mechanism — workspace pre-pass". Implementation
will be two minimal edits to distinct files-and-functions
(no sweeping refactor).

GREEN side handed to implement mini-mode in the next dispatch.
2026-05-28 19:29:02 +02:00
Brummel e094a71a3e ratify: design model — replace unit literal with canonical no-op idiom (refs F9)
Fieldtest F9 surfaced that `design/models/0007-kernel-extensions.md`
lines 80 + 89 use `unit` as a value literal of type Unit. The
checker has no such literal — it treats the token as a Term::Var
lookup and emits `[unbound-var] main: unknown identifier: unit`.
An LLM author copy-pasting the worked example from the whitepaper
hits a hard wall the second they `ail check` it.

Two coherent resolutions: (a) ratify `unit` as the canonical
Unit-value literal (a one-line resolver change + a contract
update naming the literal), or (b) tighten the model to use the
existing canonical idiom. Picking (b) because:

  - There is no existing language contract pinning `unit` as a
    literal — the model was speaking aspirationally.
  - The shipped surface already has a canonical no-op shape
    (`(do io/print_str "")`); promoting that to the model is
    cheaper than promoting a new keyword.
  - The kernel-extension-mechanics milestone is closed — adding
    a surface literal here would be unmotivated scope creep.

Both sites are if/match arms that produce Unit (i.e. they are
no-ops on the data side, used for control-flow exhaustiveness).
The replacement `(do io/print_str "")` produces Unit and is
already known-good per the kem_4_paramin_box_red.ail fieldtest
fixture. Future Series-milestone work may reach for a proper
unit-value literal; if it does, the brainstorm gate will weigh
adding it then.
2026-05-28 19:22:13 +02:00
Brummel 171a986f82 fix(stub): add missing (fn new ...) to STUB_AIL — restore prep.3 spec/ship coherence (refs F4)
Fieldtest F4 surfaced that the shipped STUB_AIL had only the
TypeDef + ctor; the spec's prep.3 § "Worked author example" wired
a `(fn new ...)` def into the stub and immediately exercised it
via the worked consumer's `(new StubT 42)`. The implementer
dropped the def during the Task 6 sweep (spec-review let it
through). Without the def, the stub's `Term::New` end-to-end
ratification story is broken — F4 demonstrated this with a
`new-type-not-constructible` diagnostic on a verbatim
worked-consumer paste.

Re-added the def per the spec's design:

  (fn new
    (doc "Construct StubT<Int> from an Int. Exercises Term::New end-to-end.")
    (type (fn-type (params (con Int)) (ret (con StubT (con Int)))))
    (params x)
    (body (term-ctor StubT Stub x)))

IR snapshots refreshed because every binary now carries the `new`
function's IR (in addition to the `drop_kernel_stub_StubT` from
the original prep.3 close). All 664 workspace tests green.

This restores coherence between the spec, the design model, and
the shipped stub. The `Term::New` invocation `(new StubT 42)` is
still codegen-deferred (per spec § Architecture, raw-buf
milestone); but at least `ail check` now passes on the spec's
worked-consumer paste.

A related and more substantive bug (F3 — kernel-tier auto-import
not registering the module as a qualifier prefix, making
`kernel_stub.StubT` consumer-unreachable) is handled separately
via the debug skill.
2026-05-28 19:21:57 +02:00
Brummel aa49a56d5a fieldtest: kernel-extension-mechanics — 6 examples, 9 findings (3 bugs, 1 friction, 1 spec_gap, 4 working)
Post-audit fieldtest for the kernel-extension-mechanics milestone.
Fieldtester wrote 6 .ail consumer programs against the public
interface only (design ledger + spec + ail CLI; no source crate
reads), one per axis with two for the param-in pair (accept +
reject). All artefacts in examples/fieldtest/ + the spec.

**Working (4):** F5 NewTypeNotConstructible diagnostic is precise
(names the home module + missing def in one sentence). F6 Term::New
codegen-deferral diagnostic explicitly names the raw-buf milestone
where support lands. F7 param-in accept-path is end-to-end (check +
build + run prints 17). F8 ParamNotInRestrictedSet names type-arg
+ var + TypeDef.

**Bugs (3, action: debug):**

- F1 (axis 1) — Same-module type-scoped call `(app Type.member …)`
  rejected with phantom-qualified `expected <this>.T, got T`.
  Bare `(app member …)` from inside Type's home module works.
  Spec's "Canonical form decision" promises type-scoped works
  uniformly; the resolver appears to disagree with the workspace
  pre-pass on whether `<this-module>.T` equals bare `T`. Repro:
  examples/fieldtest/kem_2b_min_repro.ail.

- F3 (axis 3) — Kernel-tier auto-import scopes the name but does
  not register the module as a resolvable qualifier prefix. Per
  the pre-pass, a bare `StubT` in a type slot is qualified to
  `kernel_stub.StubT`; the resolver then rejects `kernel_stub`
  as unknown. Asymmetric: prelude's free fns work (per
  prelude_free_fns.rs), but the stub's TypeDef is effectively
  unreachable from any consumer. Repro:
  examples/fieldtest/kem_3_stub_consumer.ail.

- F4 (axis 3, spec/ship coherence) — The spec's prep.3 worked-
  consumer relies on `(new StubT 42)`, but the shipped STUB_AIL
  has only a TypeDef + ctor — the `(fn new ...)` the spec
  designed is missing from the implementation. The diagnostic
  the resolver does emit on the consumer (F5) is precise; the
  bug is the absent def itself. Resolution: re-add the `new` to
  STUB_AIL (the spec's design), refresh the drift pin.

**Friction (1, action: plan-or-defer):**

- F2 — Loader's sibling-only module resolution forces symlinks
  for any cross-module fixture sitting outside the canonical
  `examples/` directory. The kem_1 example required local
  symlinks for std_list.ail + std_maybe.ail. Secondary: the
  diagnostic message names only the .ail.json path even though
  .ail also resolves — actively misleading. Recommended: small
  tidy iter for loader workspace-search-path + diagnostic clarity.

**Spec-gap (1, action: ratify):**

- F9 — `design/models/0007-kernel-extensions.md:80` uses `unit`
  as a value literal of type Unit; the checker treats it as a
  Term::Var lookup and emits [unbound-var]. Either ratify `unit`
  as the canonical Unit-value literal in the language, or tighten
  the design model to use the existing idiom. The current model/
  surface disagreement is a small but real LLM-author trap.

**Symlinks committed** as evidence of the F2 workaround:
examples/fieldtest/std_list.ail and std_maybe.ail are symlinks
into ../. They are the fingerprint of the friction — removing
them silently would erase the evidence.

Per Iron Law, fieldtester did not work around bugs — they were
all surfaced and recorded. The kem_2b_min_repro.ail fixture
exists specifically because F1 surfaced mid-drafting and got
minimised; kem_3_stub_consumer.ail also stays as the F3 RED-side
fixture.

Triage (next-step routing for /boss):

  F4 → small inline fix (add (fn new ...) to STUB_AIL + drift refresh)
  F9 → small inline ratify (whitepaper edit)
  F2 → backlog issue, deferred (single tidy iter someday)
  F1, F3 → debug skill dispatches, then implement mini-mode
  F5-F8 → carry-on, recorded as wins
2026-05-28 19:19:00 +02:00
Brummel 9d2e752f07 iter kernel-extension-mechanics.tidy: architect drift items — present-state + plugin-migration aftermath
Audit Step 3 fix path. Architect drift review at milestone close
surfaced 8 items (3 high, 4 medium, 1 low). Resolved 7 inline as
mechanical text rewrites + 2 source-rustdoc cleanups; the 1 low
(cycle-avoidance pattern documentation in design ledger) is
deferred — architect flagged it "Note, do not push" because the
pattern is implementation mechanism, not language semantics,
and is already documented in the load-bearing place
(`crates/ailang-kernel-stub/src/lib.rs //!`).

CLAUDE.md (2 sites):
  - Lead paragraph: "this file carries [...] in-tree skill system"
    → reframe to "this file carries [...] orchestrator discipline
    (the skill system itself lives in the ~/dev/skills/ plugin
    and is wired in via .claude/dev-cycle-profile.yml)".
  - Code-layout table: new row for `crates/ailang-kernel-stub/`
    documenting the zero-dep leaf design, the parse-hop location
    in `ailang-surface`, and the planned retirement at raw-buf
    landing.

design/INDEX.md (2 sites):
  - Project-ecosystem "Skills" bullet: in-tree `skills/` path +
    `skills/README.md` reference → `~/dev/skills/` plugin +
    in-tree per-project profile. Also added `docwriter` and
    `boss` to the enumerated skill list (8 in total) for
    completeness.
  - kernel-extensions row 111: added stub-retirement plan to the
    annotation so the spine names the future state, not just the
    in-tree reader of `lib.rs //!`.

design/models/0007-kernel-extensions.md (3 sites):
  - § "Migration policy" subsection: 4 bullets transitioned
    forward → present-state per honesty-rule. References to
    `loader.rs:98-108` / `workspace.rs:308-311, 467, 2655` as
    if hardcoded paths still existed → described as past state
    that has been replaced by the generic flag-filter. Codegen-
    intercept-migration bullet kept forward-looking because the
    `try_emit_primitive_instance_body` migration is *actually*
    still pending (deferred to Series milestone per spec
    § Out-of-scope).
  - § "Feature-acceptance argument": "the bounded push-only
    mutation surface — gated by the `Series` effect" — internal
    contradiction with three earlier statements that "Series
    carries no separate algebraic effect; mutation is mode-
    tracked, not effect-tracked". Re-framed to "gated by
    uniqueness mode-tracking on the owned `Series` value (not by
    an algebraic effect; see §"Coexistence" below)".
  - § "Coexistence" "Algebraic effects" bullet: "Reused
    unchanged. The `Series` effect is a new name" — same
    contradiction. Re-framed to "Not extended by Series.
    Mutation discipline lives in the uniqueness/mode system; the
    algebraic-effects set is unchanged".

Source rustdoc (2 sites):
  - `crates/ailang-core/tests/design_index_pin.rs:117` comment
    "skills/**/SKILL.md" → "any in-tree project-discipline
    document (e.g. CLAUDE.md)" — the allowlist comment now
    matches what the test actually does (no allowlist enforced
    in code; any existing path passes).
  - `crates/ailang-core/tests/design_schema_drift.rs:419`
    rustdoc: "RED until `skills/implement` mini-mode adds it"
    → "RED until the `implement` skill (mini-mode dispatch)
    adds it" — same skill, post-plugin-migration framing.

Architect items not addressed in this tidy:
  - 0007 § "The plugin contract (consolidated)" forward-intent
    reference to `try_emit_primitive_instance_body` migration —
    architect flagged as edge-case-acceptable per the explicit
    STATUS carve-out (the migration IS still pending). No
    change.
  - Cycle-avoidance pattern documentation (low): deferred per
    architect recommendation.

Tests green (664/0); workspace_pin module-count assertion picked
up from a844de3 carries through.
2026-05-28 19:04:43 +02:00
Brummel de4399df37 audit + close: kernel-extension-mechanics — latency-arm restoration + p99 jitter-metric removal (ratify)
Audit Step 2 (regression scripts) blocked at exit 2 on bench/check.py
— the latency arms produced lines=0 because their fixtures rely on
`(app print N)` to deliver one newline per sample, but the
io/print_str byte-faithful change (commit 26fb345, closes #29)
stopped trailing newlines from appearing in the polymorphic
print path. Pre-existing infrastructure failure, NOT iter-caused;
fix is one \n insertion per print site in both bench_latency_*.ail
fixtures, behaviour-preserving for any other consumer.

With infra unblocked, bench/check.py reported exit 1 on
latency.explicit_at_rc.p99_us (+42% then +65% across two
back-to-back runs) and the cognate p99_over_median. Median +1.3%,
implicit-arm-control all green. Dispatched bencher for
hypothesis-driven characterisation; the report (6 back-to-back
invocations, recorded per-invocation p99 + within-invocation
[lo, hi] spread) is unambiguous:

- explicit-arm p99_us cv = 18.6% across invocations
- explicit-arm median_us cv = 0.37% (steady-state allocator signal)
- implicit-arm p99_us cv = 2.9% (the control — no co-firing)
- 4 of 6 invocations would trip the 25% gate even though the
  underlying mean (~329 µs) is closer to baseline (259.9 µs) than
  to the worst observed (418 µs)

Structurally identical to the 2026-05-20 recalibration that
removed max_us and p99_9_us (iter bench-harness-recalibration.1,
Gitea #15 / #16) — see docs/specs/0047-bench-harness-recalibration.md.
The 2026-05-20 gamble was that p99 was still allocator-attributable
on a quiet developer machine; that gamble has now failed on the
explicit arm.

Ratify path: removed latency.explicit_at_rc.p99_us and
latency.explicit_at_rc.p99_over_median from baseline.json. The
explicit arm gates only on median_us going forward — the only
metric whose cv (0.37%) actually reflects allocator behaviour
rather than OS jitter. The implicit-arm p99 + p99_over_median
stay — they are stable (cv 2.9%) and provide the contrast that
lets future audits distinguish a real allocator regression from
machine-state jitter.

This is a ratify, not an intentional baseline movement caused by
prep.3: the kernel-extension-mechanics work touches schema +
checker + workspace-load — no codegen-runtime change that could
plausibly affect RC tail latency. The decision is forward-looking
metric removal (per honesty-rule: a regression gate that fires
4 of 6 times on byte-identical code is not a gate, it is a
random-event generator).

Bench results post-ratify: exit 0 across all three scripts
(bench/check.py 34 metrics 0 regressed; bench/compile_check.py 24
metrics 0 regressed; bench/cross_lang.py 25 metrics 0 regressed).

Architect drift items (8 enumerated) will be addressed in a
separate consolidated tidy iteration; this commit only closes the
bench gate.
2026-05-28 19:00:12 +02:00