72d2d9c8061b8259301c3e2c2732333cc8faf1eb
197 Commits
| Author | SHA1 | Message | Date | |
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 Brummel
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72d2d9c806 |
test: prune duplicate tests, re-sight two blind coverage guards
Follow-up to a fan-out audit of the whole test suite (742 tests, 21
read-only assessors + synthesis). Two clusters of the audit were
actioned here; the #66 hashing-removal cohort it surfaced is left for
the #66 scope, and the RED-first doc-rot sweep is deferred.
§2 — true duplicates removed (each kept test is a strict superset or
identical fixture+assertions of the deleted one):
- ailang-check param_in_reject_message_names_allowed_set (kept the
_renders_allowed_set_in_ailang_syntax superset)
- ailang-check cross_module_pat_ctor_typedriven_resolves (kept ct2_;
shared cross_module_ws helper retained, 2 other callers)
- ailang-core mq1_qualified_instancedef_class_accepted (kept ct1_)
- ail e2e bool_to_str_emits_true_branch (kept the rc-stats superset)
- ail loop_recur_str adt-leg guard (the standalone heap pin owns it;
dropped the dangling header reference too)
- ailang-check over_strict_mode_silent_when_param_is_borrow (its
assertion is subsumed by explicit_fn_with_no_uses_is_clean; its own
doc claimed a "borrowing body" the Lit body never provided)
§4 — meta-guards that had gone partially blind re-sighted:
- spec_drift::spec_mentions_every_def_kind now pushes Class/Instance
exemplars and asserts their `(class `/`(instance` anchors; the
"wait for 22b.4" exclusion was stale (anchors shipped in
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Brummel
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d72fe0c2e6 |
fix(codegen): drop branch-consume-split owned params (#63 leg 3)
The last leg of the #63 drop-soundness cluster: an (own ...) heap param consumed on one match-arm / if-branch but live on a sibling was never dropped on the live path, leaking one slab per call. This was the residual live=2 leak in series_sma that kept the series headline from being leak-clean. Root: the per-fn aggregate consume_count (the worst-case max over all branches from uniqueness::merge_states) was codegen's only consume signal, and every owned-param drop site gated on it. A param consumed on SOME branch makes the aggregate >= 1, so every site skipped it — including the branch where it stays live. match and if share this root (if is first-class MTerm::If, not desugared to match). Mechanism (spec 0068): - CAPTURE: uniqueness retains the per-branch consume snapshots it already computes per branch and discarded at the max merge — new BranchConsume + infer_module_with_cross_branches (the aggregate-only infer_module_with_cross now delegates and drops the channel). - CARRY: additive MArm.consume / MTerm::If.{then,else}_consume, attached by lower_to_mir via a traversal-order cursor (post-order pop, kind- and exhaustion-asserts make a desync a loud panic; neutral for const bodies which uniqueness does not walk). The AST carries no node id, so the correspondence is the structural pre-order both walks share — pinned by branch_consume_maps_attach_to_matching_arms. - GATE: emit_leakclass_branch_param_drops fires a fall-through drop only for the leak class (branch_consume==0 AND aggregate>=1), in match arms + both if branches; the pre-tail-call dec switches its gate source from the aggregate to per-arm. The fn-return dec and arm-close pattern-binder dec are UNCHANGED. Safety: - Double-free: the drop sites partition by aggregate (==0 -> existing fn-return/pre-tail-call; >=1 -> new per-branch). Disjoint, so no param is dropped twice — no fn-return disable, no tail-position analysis. - Use-after-free: the checker rejects use-after-consume, so an aggregate>=1 param is provably dead past the construct (path-terminal drop, tail position irrelevant). - Type eligibility (found by the full-suite gate during implement; spec 0068 refined): the new agg>=1 site is the FIRST drop site that can reach a STATIC closure-pair param (a top-level fn ref like inc in Either.either, consumed on one arm, live on the other) — a .rodata constant with no rc-header. field_drop_call routes Type::Fn / static-Str / Type::Var to the bare ailang_rc_dec, which underflowed on it. The helper now drops only params with a real per-type heap-ADT drop fn (field_drop_call != "ailang_rc_dec"). Sound (no underflow) and leak-correct (a static closure/Str allocates nothing). Witnessed green by std_either_demo / std_list_demo / poly_rec_capture_demo. Verification: full workspace suite green (116 binaries); both new leak pins (if + match) and series_sma_no_leak_pin green at live=0; legs 1/2 pins still green; INTERCEPTS<->(intrinsic) bijection intact; no Pattern::Lit reject path added. The leg-3 helper's type precondition was applied inline by the orchestrator (a narrowing guard clause in an already-reviewed Task-4 helper, full context loaded) after the implement-orchestrator correctly surfaced the spec gap rather than papering over the regression. This clears the series_sma leak tail; the series milestone (#61) close stays a separate deliberate step (its end-to-end milestone fieldtest). closes #63 |
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Brummel
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8d58c8310b |
test(cli): RED pin for type-scoped describe resolution
`ail describe <Type>.<op>` is the canonical form (model 0007 §1) but currently errors `no module \`Series\` in workspace` because resolve_describe_name (crates/ail/src/main.rs) only looks up the left segment as a MODULE, never as a known TYPE. The module-scoped `series.push` and bare `push` forms already resolve fine. RED pin: describe_resolves_type_scoped_op asserts `ail describe --workspace examples/series_sma.ail Series.push` exits 0 and prints the `series.push` def. Fails today on the exit-0 assertion (feature absent), not on scaffolding. GREEN side follows. refs #64 |
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Brummel
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a2808a6938 |
test(codegen): ignored RED pin for match-arm consume-split leak (#63 leg 3)
The third and final identified leg of #63: an owned heap param consumed on one match arm but live on a sibling fall-through arm is never dropped, because both codegen drop sites (the fn-return Own-param dec in lib.rs and the pre-tail-call dec in match_lower.rs) gate on the per-fn AGGREGATE consume_count. When the param is consumed on one arm (aggregate >= 1) but live on another, the gate skips the drop on the live arm too. This is the residual that keeps examples/series_sma.ail at live=2 after legs 1 and 2. Series-free minimal repro (a `Box` consumed on the `On` arm, live on the `Off` fall-through arm; main takes the `Off` path): `live=1` today. Committed #[ignore]: unlike legs 1 and 2, this is NOT a contained fix. The per-arm/per-path consume information is destroyed by the worst-case `max` merge in uniqueness.rs (`merge_states`) before MIR — MArm carries only {pat, body}, MirDef.consume is the per-fn aggregate — so codegen has no per-arm liveness to gate a fall-through drop on. Closing it needs a memory-model change (retain per-arm consume, surface it to codegen, emit the drop only on the live arm, never at the post-match join or the consuming arm — a live double-free hazard) and a fresh brainstorm cycle. The pin is committed ignored so the precise symptom and minimal repro are durable; un-ignore when the fix ships. The assertion is a correct symptom pin (live == 0); only the fix mechanism is undecided. refs #63 |
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Brummel
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2488d9d345 |
test(codegen): RED pin for let-wrapped tail-call leak (#63 leg 2)
After the leg-1 fix (
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Brummel
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1be6e49b4f |
test(codegen): RED pin for owned-param leak in tail-recursion (#63)
An owned heap ADT param threaded through a tail-recursive fn whose base-case arm neither forwards nor consumes it is never RC-dec'd, so it leaks one slab per recursion step. Series-free minimal repro (a plain `Box` ADT, no Series/RawBuf), so the pin guards the GENERAL memory-model invariant rather than the Series surface that first surfaced it (examples/series_sma.ail, live=8). The pin builds the fixture with --alloc=rc, runs it under AILANG_RC_STATS=1, and asserts live == 0 (allocs == frees). RED today: `allocs=6 frees=4 live=2`. The fixture passes the replacement ctor directly into the tail call (not let-bound) to isolate leg 1 — the owned-param drop omission — from the second, distinct leg the debugger found (a `let`-wrapped tail call also defeats the scrutinee-husk shallow-dec gate; that leg is what pushes box_ctrl to live=4 and series_sma to live=8, and gets its own pin once leg 1 is green). Cause (debugger, for the GREEN side): the fn-return Own-param dec in crates/ailang-codegen/src/lib.rs (~1444) is gated behind `!block_terminated`, so it fires only on the fall-through ret path; crates/ailang-codegen/src/match_lower.rs (~805) drops only pattern binders, never the fn's owned params. A tail-call-terminated match arm thus has no drop site for an owned param with consume_count==0 that is not forwarded into the tail call. refs #63 |
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Brummel
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35a9bc67b1 |
feat(series): ship the kernel-tier Series library extension (#61)
Series a is a bounded ring buffer with financial-style indexing (index 0 = newest), shipped as a PURE AILang library extension over RawBuf — zero Rust codegen, zero intercepts, zero (intrinsic) markers. It is the first kernel-tier module that depends on another kernel-tier module (raw_buf). This turns the committed SMA headline pin ( |
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Brummel
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6b7ee45e49 |
test(series): RED pin for the SMA worked example (#61 headline)
The headline acceptance of #61: the simple-moving-average worked example from design/models/0007-kernel-extensions.md must build via `ail build --alloc=rc`, run, and print the correct moving averages. Green ⇒ the kernel-tier `Series` library extension works end to end (ring-buffer push, financial-style indexing at index 0 = newest, count/total bookkeeping). The fixture is the 0007 worked example with two corrections applied, both verified against the live tool this session: - `>=` is not a surface symbol; the polymorphic Ord helper is `ge` (here on Int operands: total_count vs window size). - `print` on Float emits no trailing newline, so the four averages would concatenate into an unreadable blob. The emit branch now prints the average followed by `io/print_str "\n"`, so each average lands on its own line and the output is deterministic and assertable. (This legibility fix is also queued to be carried back into model 0007.) RED reason (right-for-the-right-reason): `ail check` rejects with [bare-cross-module-type-ref] on `Series` — the kernel-tier module does not exist yet. The fixture itself parses and is otherwise valid. Expected stdout was derived by probing the live %g float formatter independently (the SMA averages are 9/3, 16/3, 17/3, 16/3 over the stream 1,5,3,8,6,2 with window 3): `3.0\n5.33333\n5.66667\n5.33333`. GREEN side (the `series` kernel module + the five ops) is the next mini-mode iteration. |
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Brummel
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e035eff8df |
test(series): RED pin for polymorphic RawBuf element-var forwarding
Base-tier enabling RED for the `series` milestone step 1 (#61). A polymorphic fn that allocates `(new RawBuf n)` with no explicit type-arg — element var solved purely from the enclosing ctor-field type `(con RawBuf a)`, never from a value argument — checks clean but fails `ail build --alloc=rc`: mono drops the check-phase solution for `a`, defaults it to Unit, and codegen mints the unregistered `RawBuf_new__Unit`. The fixture reads the element back via `RawBuf.get` so a wrong specialisation is observable (the program must print the stored `1.0`). This is the precondition the user picked (option B) so Series can ship as a pure AILang library extension over RawBuf while keeping the model-0007 `(new Series (con Float) 3)` caller surface. The #51 fix carried a WRITTEN `(con Int)` type-arg through mono; the variable-via-expected-type case is the untouched gap. RED: `ail check` exits 0; `ail build --alloc=rc` aborts with `RawBuf_new__Unit has no registered intercept`. GREEN target: builds, runs, prints `1.0`. The mono fix must not break the INTERCEPTS↔ (intrinsic) bijection or the Term::New↔pre_desugar_validation lockstep. refs #61 |
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Brummel
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1be2c1f145 |
docs: fix doc_lazy_continuation across the workspace
Eighteen markdown list items in module- and item-doc comments had continuation lines that were not indented to align under the item text, so rustdoc rendered them as separate paragraphs and broke the list. Corrected the indentation (and, at two sites where a general wrap-up sentence followed a sublist, separated it with a blank doc line so it does not mis-attach to the last item). Doc whitespace only; no prose reworded, no code changed. Workspace clippy is now warning-clean. |
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Brummel
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e5534d1532 |
refactor: clear clippy code lints across the workspace
Machine-applicable clippy fixes plus three by-hand cleanups; all semantics-preserving (full workspace test suite green). Auto-applied (cargo clippy --fix): - dropped `.clone()` on the Copy type ParamMode (ret_mode/param_mode) - map_or(false, p) -> is_some_and(p) - removed redundant closures and an explicit .into_iter() - useless format!, a needless deref, an as_bytes-after-slice By hand: - ailang-codegen: named the loop-frame tuple types (LoopFrame / LoopBinderSlot) instead of the bare nested Vec<(String, Vec<(String, String, String, Type)>)>, clearing the type-complexity lint and documenting what each slot holds. - ailang-check: collapsed the two identical pass-through arms of the Type-Con qualifier (already-dotted / primitive) into one `||` guard. - ailang-core: converted a stale `///` block (it described a test that was relocated, documenting nothing) back to a plain `//` comment. Remaining clippy output is 16 markdown list-indentation nits in prose doc comments — doc formatting, not code, left for a docs pass. |
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Brummel
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7ae92d3e60 |
refactor(test): hoist duplicated test helpers into ailang-test-support
closes #60 The fixture-corpus filter (NON_PARSEABLE_FIXTURES + list_ail_fixtures) was copy-pasted across three test crates and drifted out of sync as new reject fixtures landed; the examples_dir / workspace_root path walk was reimplemented ~30 more times across the suite, under two spellings (workspace_root / ws_root). Introduce crates/ailang-test-support — a zero-dependency, dev-only leaf crate — as the single home for these helpers: - NON_PARSEABLE_FIXTURES, list_ail_fixtures - workspace_root, examples_dir - canonical_workspace_root (symlink-resolved variant, for the tsan/ race tests that feed the root into native build steps) All integration-test copies across ailang-core, ailang-surface, ailang-prose, ailang-check, and ail now import from the shared crate; the local definitions and their now-orphaned path imports are removed. Path helpers resolve via the support crate's own CARGO_MANIFEST_DIR, so they return the correct absolute paths from any caller. ail_bin helpers are intentionally left in place: they depend on env!("CARGO_BIN_EXE_ail"), which Cargo only defines when compiling the ail crate's own integration tests, so they cannot move to a shared crate. Behaviour-identical: same paths, same fixture lists; full workspace test suite green. Net -177 LOC. |
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Brummel
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e25580e3a3 |
test(cutover): live accept/reject corpus for the #55 ownership surface
Wires the #55-cutover fieldtest into a durable regression net. The
fieldtest exercised the post-cutover ParamMode={Own,Borrow} surface as a
downstream LLM author would and produced 12 fixtures + a report; left as
loose files they would be dead fixtures that drift. This commits them as
a protected property.
crates/ail/tests/cut55_cutover_surface.rs — one table-driven test running
each fixture through `ail check` and asserting accept (exit 0) or reject
at the right pipeline stage. Reject rows key on the bracketed diagnostic
CODE (consume-while-borrowed, borrow-over-value, borrow-return-not-permitted,
surface-parse-error), NOT message text, so the test is decoupled from the
diagnostic-wording improvement tracked separately.
examples/fieldtest/cut55_*.ail — the corpus. cut55_2c is the #58 repro
(now correctly rejected). cut55_2b was misanalysed by the fieldtest as a
consume-while-borrowed reject; in fact bump's recursive param is
(borrow List) so the tail is only borrowed, never consumed into an own
slot — `ail check` correctly accepts it. Renamed to
cut55_2b_borrow_traversal_clean and recast as the #58 false-positive
guard (a borrow-position use of a heap sub-binder must stay accepted).
cut55_1b similarly does not fire over-strict-mode (its recursive call
consumes the tail, so the lint's consume_count==0 premise fails) — comment
corrected; it is a plain accept. cut55_1c is the genuine over-strict-mode
example (accepts exit 0, emits the warning).
docs/specs/0065-eliminate-implicit-mode fieldtest report — moved 2c to
the reject set, added the 2b false-positive-guard section, marked the
double-free spec_gap RESOLVED (it shipped as the #58 fix).
Relates to #55.
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Brummel
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76b21c00eb |
feat(lang): eliminate the Implicit ownership default — totality + the drop-soundness it demasks (#55)
Deletes `ParamMode::Implicit`. `ParamMode` is now `{Own, Borrow}`:
every fn-type slot on every signature carries an explicit `own` or
`borrow`, no defaulted position survives anywhere (model 0008 §2,
spec 0062). The parser rejects a bare fn-type slot; `borrow-return`
and `borrow-over-value` reject at the signature; the corpus is
migrated to minimal-ownership modes (consumed ⇒ own, read-only-heap
⇒ borrow, value ⇒ trivial-own). The documented `Implicit`-ret-mode
leak is fixed: an owned heap return now drops exactly once (live=0,
acceptance criterion 5).
This was the easy half. Removing the default ACTIVATED a family of
drop paths that `Implicit` had silently skipped — the pre-cutover
language was leaking (and in places mis-dropping) here rather than
crashing, because an Implicit scrutinee turned the drop off. Making
the modes explicit (Own) turned those paths on and exposed two
latent-bug clusters, all fixed RED-first as part of this cutover:
Drop-soundness family (four legs):
A. lit-sub-pattern double-free — the desugar re-matched the same
owned scrutinee in the lit fall-through; fixed by grouping
consecutive same-ctor arms into one match (bind fields once),
in ailang-core desugar.
B. Cons-husk leak on non-tail arm bodies — the lit-sub-pattern
desugar rebound the owned scrutinee via `Let $mp = xs`, which
bumped consume_count and suppressed the existing fn-return
partial_drop. Fixed by not rebinding a bare-Var scrutinee
(one husk-freeing mechanism, not two).
C. polymorphic `drop_<T>` rc_dec'd monomorphised value fields —
the per-ADT drop fn was emitted once from the polymorphic
TypeDef, defaulting type-var fields to ptr and rc_dec'ing
inline Ints (segfault). Fixed with per-monomorph drop
functions (new ailang-codegen::dropmono): the drop set is
collected from the lowered MIR, value-type fields are skipped,
heap fields still freed once; monomorphic-concrete ADTs keep
their byte-identical un-suffixed drop symbol.
D. static Str literal passed to an `(own Str)` param — the
literal lowers to a header-less rodata constant; the callee's
now-active rc_dec read its length field as a refcount and
freed a static address (segfault). Fixed with the missing
fourth StrRep::Static→Heap promotion in lower_to_mir's App arm,
gated on Own mode (borrow args stay static, no regression).
over-strict-mode lint over-fired: it suggested `(borrow V)` for
value-typed params (which `borrow-over-value` rejects — own is the
only legal mode there) and fired on `(intrinsic)` bodies (whose
consumption the linearity walk cannot observe). Tightened to skip
both; contract 0008 updated to the narrowed firing scope.
Irreversible step — canonical-form hash reset (model 0008 §6,
acceptance criterion 6). Every signature now carries explicit modes,
so the hashable canonical JSON changed for every module. RATIFY:
the corpus-wide hash-pin reset (hash_pin, prelude_module_hash_pin,
mono_hash_stability, eq_ord_e2e, embed_export_hash_stable, the
ct4/iter*/loop_recur schema-extension pins) and the list ir_snapshot
golden were regenerated once, deliberately, as the intended one-time
consequence of removing the mode elision from the canonical form —
not a regression. Each regenerated hash verified deterministic across
two runs.
Also fixes a pre-existing latent failure surfaced by the verification
gate, unrelated to this cutover: the `every_contract_names_a_resolvable_
ratifying_test` resolver (design_index_pin) could not resolve the
" + " dual-link ratifying-test form (`uniqueness.rs + linearity.rs`)
that the #57 audit-close (
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Brummel
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05c3c018de |
fix(check): branch Float NoInstance addendum on method name (#25)
The Float-aware `NoInstance` addendum emitted the same hint for every Eq/Ord method at Float: "use float_eq / float_lt (and siblings ...)". For `eq`/`ne`/`lt`/`le`/`gt`/`ge` that is correct — each has a drop-in boolean `float_*` sibling. For `compare` it is incomplete and misleading: `compare` returns three-way `Ordering`, but no `float_compare` ships (a deliberate non-ship, docs/specs/2026-05-20-operator-routing-eq-ord.md). An LLM author who reached for `compare` to get three-way ordering was pointed at boolean siblings as if a drop-in existed, and left guessing whether to reconstruct it themselves. Fix: branch the addendum on the called method. The boolean arm keeps the existing wording; the `compare` arm instead names the deliberate `float_compare` omission and points at building a three-way `Ordering` from `float_lt` + `float_eq`. One added branch on the existing `method` field (already carried by `CheckError::NoInstance`), no new machinery; the structured `ctx` is untouched. Out of scope (the issue's deliberate non-ship): shipping a `float_compare` fn. The friction was that the diagnostic did not acknowledge the omission — now it does. RED-first, inline: a one-branch diagnostic-text change at a single site whose surrounding code was already loaded while working the adjacent #52 fix this session (CLAUDE.md "context already loaded" carve-out). TDD discipline preserved by the new RED test `compare_at_float_names_deliberate_no_float_compare` over a new minimal fixture `examples/compare_float_noinstance.ail` (`compare` at Float); it failed RED on the old shared wording and passes GREEN on the branch. The pre-existing `eq_at_float_fires_float_aware_noinstance` still passes (eq arm unchanged). Verification: full ailang-check lib suite (121) + full ail test suite green; live CLI renders both arms correctly. closes #25 |
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39b674c1ec |
chore: throwaway mode-migration tool for the Implicit cutover (#55, 0121 task 3)
Adds `ail migrate-modes <file>` (a throwaway CLI subcommand) and the AST walker `ailang_core::ast::for_each_fn_type_mut` it drives: parse a .ail, map every bare/Implicit fn-type slot to Own, preserve explicit Own/Borrow, print back. Semantically invisible today (PartialEq treats Implicit == Own), but it materialises the modes so the post-cutover parser — which will reject bare slots — accepts the migrated corpus. Both are throwaway: removed in task 4 once ParamMode::Implicit is deleted (the closure references Implicit and would not compile). RED-first: migrate_modes.rs failed to compile (missing walker) before for_each_fn_type_mut was added. Additive; full workspace suite green. refs #55 |
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Brummel
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e1c908912b |
feat(check): reject borrow-returns at the signature (#55, 0121 task 1)
`(ret (borrow T))` is now a check error (CheckError::BorrowReturnNotPermitted, code `borrow-return-not-permitted`), fired on the fn signature before body dataflow. Borrow-returns are refcount-invisible and can outlive their source; re-enabling them needs the escape/liveness axis, which is out of scope (spec 0062). The diagnostic names that gap as an honest "not yet". The check_fn signature destructure now also binds `ret_mode` (param_modes stays under `..`; the borrow-over-value reject that reads it is folded into the cutover, task 4). RED-first: examples/borrow_return_reject.ail checked clean (exit 0) before the reject landed, exits 1 after. New CLI-boundary E2E pin crates/ail/tests/mode_signature_rejects.rs, modelled on raw_buf_new_type_arg_pin.rs. Additive — ParamMode::Implicit still present; full workspace suite green, bench/check.py 0 regressed. refs #55 |
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Brummel
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a378dad0aa |
docs(design): ratify the check→codegen boundary (mir.5, typed-MIR close)
mir.5 is the typed-MIR milestone's closing iteration. Its CODE half had
already converged before the iteration began, so mir.5 ships no code —
it ratifies into the design/ ledger the boundary the code already holds.
Verified at iteration entry (empirically, not from the spec sketch):
- all four named re-derivers grep-clean in codegen: synth_with_extras,
synth_arg_type, type_home_module, the second infer_module_with_cross;
- lower_workspace takes &MirWorkspace (codegen consumes MIR);
- MTerm::New is unreachable!() — raw-buf.4 desugars Term::New to
(app T.new …) before codegen, so there is no element-type
re-derivation left to relocate;
- #51 / #53 (the element-type / new-T codegen crashes) are closed;
their residue was fixed by
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Brummel
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c5fd16a4eb |
feat(codegen): StrRep loop-carried Str ⇒ Heap, close the #49 recur leak
mir.4 closes bug #49 (a heap-Str loop binder replaced across `recur`
leaks every superseded slab; the loop result leaks too) structurally,
by making every Str a loop binder holds OR a loop returns an owned heap
slab — then deleting the `!is_str` carve-out from BOTH codegen gates
that carried it. The leg-by-leg `!is_str` patches are gone.
Mechanism (the milestone thesis: representation in MIR, codegen reads
it). lower_to_mir sets rep = StrRep::Heap on every Str literal in a
loop-carried position; codegen's MTerm::Str arm promotes a Heap literal
via ailang_str_clone (a fresh ailang_rc_alloc slab, rc_header refcount
1). Three promotion positions, all in the Loop/Recur lowering:
1. binder seed inits (is_str_ty on the binder type);
2. recur args at Str-binder positions (read off the innermost
loop_stack frame);
3. exit-arm tail result literals (promote_tail_str_literals walks the
loop body's tail positions when the loop returns Str).
With every loop-carried Str now owned-heap, both gates lose !is_str:
the recur superseded-value dec (lib.rs) frees each intermediate slab;
the loop-result trackability gate (drop.rs:493) lets the caller's
scope-close free the final slab.
Why both gates, and the planning-time error this corrects. The original
plan/spec scoped the deletion to the recur dec gate only, reasoning the
#49 loop result is "consumed by print". The implement-orchestrator
landed that scope (Tasks 1-2) clean and correctly BLOCKED: it took #49
from live=3 to live=1, the residual being the loop RESULT. I verified
the diagnosis empirically:
- print BORROWS its arg (prelude: `(let s (show x) (do io/print_str
s))`, the eob.1 heap-Str discipline), so `(print s)` does not free
the loop result; the caller's let-binder does, via drop.rs:493.
"consumed by print" != "freed by print" — that was the error.
- Deleting drop.rs:493's !is_str takes #49 and the recur-literal
fixture to live=0.
- Deleting drop.rs:493 WITHOUT exit-arm promotion SIGSEGVs (exit 139)
on a loop returning a static Str literal — hence the third
promotion position and the static-exit witness.
The agent surfaced a real spec defect via an empirical BLOCK rather
than guessing; I corrected the spec refinement note (both gates, three
positions) and completed the loop-result leg inline, the context
already loaded from verifying the BLOCK (CLAUDE.md "already loaded
context" carve-out). drop.rs:493's Str carve-out is now sound to delete.
Boundary (asserted ill-typed, not constructible): a borrowed static-Str
Var seeded/recur'd into a consumed Str loop binder — rejected upstream
by uniqueness (a consumed binder position is owned).
Verification (orchestrator-run): all four leak fixtures reach live=0
under AILANG_RC_STATS — #49 (xyyy), recur-literal (reset), static-exit
(result), and the
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Brummel
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eba1be8d9d |
feat(codegen): fill MArg.mode for App args, read the anon-temp drop gate off it, delete module_def_ail_types (mir.3b)
Second of two iterations delivering spec 0060's mir.3 row (plan docs/plans/0118-mir.3b-marg-mode-and-table-delete.md). lower_to_mir's Term::App arm fills each MArg.mode from the resolved callee's param_modes (the sig = synth_pure(callee) it already holds); codegen's emit_call anon-temp borrow-slot drop gate reads arg.mode instead of re-looking-up the callee's param_modes from the module_def_ail_types table; and — since that gate was the table's only reader — the module_def_ail_types field plus all its construction and threading are deleted. Two refinements to the spec's mir.3b sketch, settled in planning from a focused recon and recorded in spec 0060: 1. module_def_ail_types is deleted in mir.3b, not mir.5. A grep proved self.module_def_ail_types had exactly ONE reader (the anon-temp gate); the own-param drop reads param_modes from the def's own f.ty, not this table. Once the gate moves onto MArg.mode the table is dead, so it is removed now rather than carried as dead code to mir.5. The mir.5 row's "last re-derivation residue" shrinks to the element-type / Term::New (New.elem) work. 2. MArg.mode is filled for App args only; MTerm::Let.mode is not filled. Only App args have a real per-arg mode source (the callee Type::Fn.param_modes). Do args (EffectOpSig has no param modes), Ctor args (no per-field mode), and Recur args (loop binders carry no mode) stay Mode::Owned. Let.mode has no source (ast::Term::Let has no mode field) and no consumer (the let-drop gate reads consume, not Let.mode), so it stays Owned — filling it would invent a value nobody reads. Safety property held: MArg.mode is filled from the same callee fn-type the gate read from the table, so the drop fires identically. For (app RawBuf.get (app RawBuf.set …) 0), RawBuf.get's param 0 is borrow, so args[0].mode = Borrow — exactly the value module_def_ail_types yielded. Confirmed by the anon-temp witness staying green. ParamMode -> Mode conversion: Borrow -> Mode::Borrow; Own and Implicit (the Implicit ≡ Own contract) -> Mode::Owned. The own-param drop keeps reading ParamMode off f.ty (Type/ParamMode imports retained, live readers at lib.rs:1356/1507). Also retires three now-stale doc comments that named the deleted module_def_ail_types field (ailang-check/src/lib.rs, uniqueness.rs, and the codegen_import_map_fallback_pin test doc) — a direct consequence of the deletion, reworded to the current architecture. Verification (orchestrator, post-implement inspect): diff matches the plan (App-arg m_args built before m_callee consumes sig — the benign borrow-order deviation the plan's note flagged); module_def_ail_types grep-clean across all of crates/; cargo build --workspace clean (no unused/dead_code); cargo test --workspace 702 passed / 0 failed / 3 ignored (+1 = the new producer pin app_arg_carries_callee_borrow_mode; no #[ignore] added). The anon-temp drop-correctness witness raw_buf_owned_drop_balances_rc_stats stays live=0, now driven by MArg.mode; the other RC-stats leak pins green; #49 stays #[ignore] (mir.4); #51/#53 build guards green. mir.3 is now complete (3a relocated consume_count + deleted the second uniqueness run; 3b filled the mode annotation + deleted module_def_ail_types). Remaining: mir.4 (#49 StrRep RED->GREEN), mir.5 (element-type/Term::New + ledger). |
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Brummel
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a6fd93adba |
feat(codegen): pre-resolve the App callee in MIR; delete is_static_callee + type_home_module (mir.2)
Second re-deriver removal of the typed-MIR milestone (spec
docs/specs/0060-typed-mir.md, plan docs/plans/0116-mir.2-callee-static.md).
Static-callee resolution moves out of codegen and into lower_to_mir:
every Term::App callee is classified once, mirroring check's own synth
Term::Var ladder (lib.rs:3409-3582), and emitted as a resolved Callee.
Codegen reads the callee identity off MIR and routes each kind to the
right lowering. The codegen re-derivers is_static_callee and
type_home_module are deleted, and the lower_app <-> is_static_callee
lockstep pair is struck from CLAUDE.md.
Callee reshape (beyond the spec's original {module, fn_name} sketch —
spec 0060's Concrete-code-shapes block is updated in this iteration):
pub enum Callee {
Static { module, fn_name, sig: Type }, // user/prelude fn -> emit_call, module pre-resolved
Builtin { name, sig: Type }, // operator/intrinsic -> inline opcode lowering
Indirect(Box<MTerm>), // dynamic: fn-pointer / closure / shadowed name
}
Two forced refinements, both settled in planning:
- sig:Type on each resolved variant. drop::synth_callee_ret_mode reads
the callee ret_mode, today off Callee::Indirect(inner).ty(). A
resolved callee has no sub-term, so the sig (= synth_pure(callee),
mode-preserving) is the lossless replacement. This is NOT a mir.3
pull-forward: the MArg param-mode / consume_count fields stay at their
mir.1 defaults. Without it, every statically-resolved call would lose
its drop signal and the RawBuf / int_to_str RC-stats pins mir.1b fixed
would regress.
- Builtin variant. Operators and the str-num builtins (+, not,
str_concat, ...) are lowered inline by name and have no module/fn_name;
a separate variant is cleaner than a sentinel module. The classifier
decides Builtin vs Static from CHECK'S OWN resolution (a name in
env.globals with no owning module is a builtin), never a copy of
codegen's old is_static_callee allowlist. The recon's divergence audit
confirmed check's builtin set and codegen's inline-arm set match
exactly, so the single-engine rule is mechanically satisfiable with no
env threading gap.
type_home_module is fully deletable: a workspace-wide grep confirmed no
program references a type-scoped T.fn as a value, so its only other
consumer (resolve_top_level_fn) collapses to the module-name fallback
with no behaviour change. (The spec's "x3 mirrors" wording over-counted;
the live surface was the definition plus two call sites.)
Alternatives rejected during planning: sentinel module in Static
(ugly); builtins left as Indirect (breaks — no fn-pointer for an
operator); name-rewrite Static{name,sig} keeping lower_app's by-name
dispatch (blurs builtin/user and still needs sig). The mir.1b
re-synth-strictness trap (post-mono synth_pure re-unify surfacing
mode-strip / bare-vs-qualified / metavar leaks) did NOT fire under the
new producer path — qualify_local_types mode-preservation and the $u
wildcard normalisation from mir.1b held.
Verification (orchestrator, post-implement inspect): diff matches the
plan; grep-clean for is_static_callee + type_home_module across
ailang-codegen and ail; cargo build --workspace green; cargo test
--workspace 700 passed / 0 failed / 3 ignored (no #[ignore] added this
iteration — the 3 are the pre-existing #49 Str-leg pin + two doctests).
Acceptance witnesses green: #53 (mono_new_over_user_adt_builds_and_runs),
#51 (rawbuf_new_int_size_only_builds_and_runs still builds), show_print
cross-module (print_user_adt_runs_end_to_end), the new mir.2 pins
(mir2_resolved_callee_kinds_run_end_to_end, callee_classification_*,
strengthened new_over_user_adt_carries_node_types asserting Callee::Static).
#49 heap-Str loop binder stays #[ignore] (lifts at mir.4).
Two new examples/ fixtures back the new pins (classify_pin.ail for the
producer classification pin, mir2_callee_kinds.ail for the E2E),
ail-parse / round-trip clean.
Forward note (cycle-close architect): crates/ail/tests/codegen_import_map_fallback_pin.rs:14-15
doc prose names lower_app's cross-module arm and synth_with_extras as
failure-mode targets — both now deleted (mir.2 / mir.1b). The pin's
protected invariant is still valid and green; the prose is stale and
wants a doc-honesty reword, left out of this iteration's footprint.
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Brummel
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895ba846e8 |
feat(codegen): switch the lowering walk from &Term to typed &MTerm (mir.1b)
Atomic completion of spec iteration mir.1 (docs/specs/0060-typed-mir.md): codegen now consumes the typed MIR produced by `lower_to_mir` instead of re-deriving types from the bare `ast::Term`. Every codegen helper that took `&Term` (lower_term, lower_app, drop.rs, match_lower.rs) takes `&MTerm` and reads each node's checker-proved type off `MTerm::ty()`. The build path is `Workspace -> elaborate_workspace -> MirWorkspace -> lower_workspace`; the public `lower_workspace*` entry points and their 18 call sites thread `&MirWorkspace`. The codegen-side type re-derivers `synth_with_extras` + `synth_arg_type` (and the `builtin_ail_type` / `builtin_effect_op_ret` mirror tables) are deleted — grep-clean. The three re-derivers the spec keeps until mir.2/mir.3 (`type_home_module`, `is_static_callee`, the second `infer_module_with_cross`) stay. The mechanical Term->MTerm match-arm conversion was straightforward and compiler-enforced. The substance was a set of producer-side correctness gaps that only surface once codegen reads `MTerm::ty()` and once the build path re-synthesises the post-mono AST through the canonical `synth` (which, unlike the old codegen, fully re-unifies). Each was root-caused against a failing e2e fixture: 1. `qualify_local_types` stripped fn-type modes (rebuilt `Type::Fn` with empty `param_modes` / `Implicit` `ret_mode`), so a monomorphised polymorphic intrinsic (`RawBuf.set`) lost its `Own` ret-mode and the owned temporary leaked at the call site. Made mode-preserving, like its sister `qualify_workspace_types` and `Subst::apply` ( |
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Brummel
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02775b58ca |
test(codegen): mark the #49 Str-leg RED pin #[ignore] pending the representation spec
The Str-leg pin (committed |
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Brummel
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04f75c8b71 |
test(codegen): RED-pin #49 Str leg — heap-Str loop binder must not leak across recur
A heap-Str accumulator threaded through a `(loop …)`/`recur` as a loop binder leaks: each iteration's superseded `str_concat` slab is never RC-dec'd, even when the loop's final result is consumed. The fixture reports `allocs=4 frees=1 live=3` under AILANG_RC_STATS (stdout `xyyy` is correct). Root (data-flow traced): the `Term::Recur` arm in crates/ailang-codegen/src/lib.rs (~2131) gates its superseded-value dec behind `!is_str`. That exclusion exists because a `Str` loop seed may be a static-literal Str — a constexpr GEP into a packed-struct global with no rc_header (lib.rs:1612) — and `ailang_rc_dec` on a static pointer reads garbage at `payload-8` and aborts on underflow (rc.c:221, no runtime guard, per design/contracts/0011-str-abi.md). So the Str binder's prior heap slab is overwritten by a plain `store` with no dec. Distinct from the loop-RESULT scope-close drop ( |
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1eff055a0e |
test(codegen): RED-pin #53 — monomorphic (new T args) over a user ADT must build
A monomorphic `(new Counter 42)` over a user-defined ADT that declares a
`new` fn passes `ail check` but crashes `ail build --alloc=rc` with
`unknown variable: Counter.new`. Distinct root from #51 (the polymorphic
type-arg drop, fixed by
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Brummel
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61b9d3f513 |
test(raw-buf): RED-pin #51 — (new T <elem> …) must honour the element type-arg
Two failing E2E tests pinning the two legs of the #51 codegen crash, both rooted in the `Term::New` desugar dropping `NewArg::Type` (crates/ailang-core/src/desugar.rs:1053): - Leg 1 (legitimate): `(new RawBuf (con Int) 3)` used only via `RawBuf.size` — never observed by get/set, so the dropped `(con Int)` is the sole element-type carrier. The unpinned forall var defaults to Unit in mono and `ail build --alloc=rc` aborts on the unregistered `RawBuf_new__Unit` intercept. Pins build+run printing `3`. - Leg 2 (forbidden): `(new RawBuf (con Unit) 3)` — Unit is outside the param-in set {Int, Float, Bool}, but the dropped type-arg never reaches param-in enforcement, so `ail check` wrongly passes. Pins a `param-not-in-restricted-set` rejection naming Unit at check time. Both RED at HEAD. GREEN side carries the explicit element type from Term::New through to monomorphisation (must not mint __Unit) and adds the leg-2 reject pre-desugar per the Term::New/desugar lockstep. refs #51 |
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Brummel
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f488d314e8 |
fix(codegen): dec superseded heap loop-binder values across recur (ADT leg)
A heap value threaded through a `(loop ...)`/`recur` as a loop binder
leaked: the `Term::Recur` arm stored each new arg into the binder's
loop-carried alloca with a plain `store` and never RC-dec'd the heap
value already in that slot, so every iteration's superseded value was
lost. The scope-close drop path (drop.rs, commit
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Brummel
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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. |
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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. |
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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).
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Brummel
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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
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Brummel
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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
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Brummel
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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. |
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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
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Brummel
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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). |
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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.
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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.
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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.
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9339279181 |
iter prep.3-kernel-tier-modules (DONE 9/9): kernel-tier modules + param-in + stub crate — closes #33
Terminal iteration of the kernel-extension-mechanics milestone. Ships
the four language-level mechanisms named in the spec's § Goal:
Module.kernel + TypeDef.param-in schema, their Form-A surface,
flag-driven kernel-tier auto-injection, and generic param-in checker
enforcement with a new diagnostic.
Schema (Tasks 1+2). Module gains a `kernel: bool` field
(skip_serializing_if = is_false), TypeDef gains a
`param_in: BTreeMap<String, BTreeSet<String>>` field
(skip-if-empty, kebab-renamed to "param-in"). Both fields are
strictly additive — every pre-existing fixture's canonical-JSON hash
is bit-stable except `prelude.ail`, which intentionally gains
`(kernel)`. The struct-literal sweep covered ~104 Module sites and
~35 TypeDef sites across the workspace; the additive serde-default
covers JSON deserialise paths, only Rust struct literals broke.
Form-A surface (Tasks 3+4). `(kernel)` is a bare module-header
attribute; `(param-in (a Int Float) (b Str))` is one outer
TypeDef-body clause carrying one or more inner var-lists (OQ1
decision — mirrors `(ctors …)`, one parser arm, deterministic
BTreeMap iteration). Both round-trip Form-A → JSON → Form-A
bit-identical.
Workspace-load migration (Task 5). The hardcoded `&["prelude"]`
literal at loader.rs:108 became a `modules.values().filter(|m|
m.kernel)` derivation; `parse_prelude()` injection stays because
the prelude has no on-disk manifest in user workspaces. Prelude
now carries `(kernel)` in its source, so the new filter picks it
up automatically. Code-path migration only — observable behaviour
is identical (prelude_free_fns.rs stays green). prelude hash
re-pinned (af372f28c726f29f) with Honesty-Rule provenance comment.
WorkspaceLoadError::ReservedModuleName diagnostic prose
repurposed: any built-in kernel module name is reserved
(currently prelude + kernel_stub), not specifically prelude. CLI
mapping at main.rs updated in lockstep.
Stub crate (Task 6). New `crates/ailang-kernel-stub/` is a
zero-dependency leaf crate carrying only `pub const STUB_AIL:
&str` with the Form-A source of the kernel_stub module (one
parametric TypeDef with param-in, one ctor). The parse hop —
`parse_kernel_stub()` — lives in ailang-surface next to
parse_prelude, keeping the crate-dependency graph acyclic
(`ailang-surface → ailang-kernel-stub → ailang-core`, no
back-edge). The stub is injected unconditionally in all builds as
the ratifying fixture for the kernel-extension mechanism; future
base extensions may add more or retire the stub. Drift-pinned by
`kernel_stub_module_round_trips`.
Checker (Task 7). New `CheckError::ParamNotInRestrictedSet`
variant + code() + ctx() arms + enforcement in
`check_type_well_formed`'s Type::Con arm — generic, data-driven
from the TypeDef, mentions no specific extension type. Two
in-source tests pin both the rejection (`Str` outside `{Int,
Float}`) and the acceptance (`Int` inside) paths.
Workspace-load integration tests (Task 8). New
`workspace_kernel.rs` integration-test crate with three tests:
auto-import without explicit `(import …)` declaration, two
kernel-tier modules co-load, explicit-import-overrides-auto-
import precedence preserved. Loader is import-tree-only so the
auto-import tests use a bridge module that brings the kernel
module into the workspace via the import graph — docstring
captures the reachability nuance for future readers.
Doc-state transitions (Task 9). INDEX.md kernel-extensions row
annotation transitions from "design accepted 2026-05-28; impl in
progress" to "mechanisms milestone closed 2026-05-28; raw-buf and
series milestones pending". Whitepaper STATUS + auto-import +
param-in sections transitioned forward→present for shipped
mechanisms; forward-tense survives only in sections describing
the still-pending raw-buf/series milestones (per Honesty-Rule).
data-model contract gains anchor blocks for both new schema
fields.
Side-effect: every binary's IR snapshot now contains ~52 lines
for `drop_kernel_stub_StubT` because the stub is auto-injected
into every workspace load. Snapshots refreshed; e2e expects 4
modules per workspace (prelude + kernel_stub + entry + zero or
more user modules) instead of the previous 3.
Plan defects scrubbed in the implementation (folded back into
the planner template via the planner's self-review checklist
next time): Task 4 sample test src used fictional
`(ctors (MkT a))` list form (project grammar is per-`(ctor MkT
a)`); Task 6 original wiring would have created a cycle
ailang-surface → ailang-kernel-stub → ailang-surface (inverted —
stub crate is zero-dep, parse hop lives in surface); Task 7 in-
source tests referenced a fictional `check_type_in_module`
helper (used the existing Workspace + check_workspace
convention); Task 8 first integration test expected loader to
auto-load kernel modules from disk (loader is import-tree-only;
tests use a bridge module).
Concern-5 fix folded in pre-commit: workspace.rs ReservedModuleName
doc-prose initially said "in test/dev builds" for kernel_stub —
but stub is unconditionally injected in all builds. Doc copy
tightened to present-state per Honesty-Rule.
Stats: 0 spec-review-loops, 0 quality-review-loops, 2 sweep-script
retries on Task 2 (brace-depth bug on nested vec![Ctor{…}],
recovered via per-file checkout + rewritten anchor-on-existing-
field sweep), 1 e2e-snapshot refresh on Task 6.
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078c39a76a |
iter prep.2-term-new-construct (DONE 4/4): Term::New AST + Form-A surface + checker + drift — closes #32
Second iteration of the kernel-extension-mechanics milestone. Ships
the `new` Form-A keyword + `Term::New { type_name, args: Vec<NewArg> }`
AST variant + `NewArg::Type|Value` enum end-to-end through schema /
surface / checker, with two new diagnostics
(`NewTypeNotConstructible`, `NewArgKindMismatch`), a new arm in
prep.1's workspace-wide normalisation pre-pass `qualify_workspace_term`
that rewrites bare `Term::New.type_name` to qualified form
(symmetric to the existing `Term::Ctor` arm), and the data-model.md
+ form_a.md anchor additions. Codegen out of scope per spec; codegen
sites get `CodegenError::Internal` arms naming the raw-buf milestone
as the carrier.
Verification:
- `cargo test --workspace`: 654 tests passing, 0 failed.
- 3 new in-source checker tests pin the elaboration paths:
`new_resolves_via_type_scope` (the spec's worked Counter example
checks cleanly), `new_type_not_constructible` (missing `new` def
in home module fires the new diagnostic), `new_arg_kind_mismatch_value_where_type`
(kind-mismatch detection).
- 2 new schema-drift pins (`term_new_round_trips`,
`term_new_type_arg_round_trips`) ratify the JSON byte shape:
`{"t": "new", "type": "<TypeName>", "args": [{"kind": "type"|"value",
"value": ...}]}`.
- 1 new surface round-trip pin exercises mixed-kind args through
Form-A → JSON → Form-A.
- 44+ exhaustive Term-match sites across 24 files extended with
`Term::New` arms — workspace-wide cargo build clean.
Concerns documented inline:
- `crates/ailang-core/tests/schema_coverage.rs` deliberately does
NOT register `VariantTag::TermNew` in the `EXPECTED_VARIANTS`
set. The coverage test asserts every declared variant is
observed in the .ail fixture corpus; no .ail fixture in the
current tree emits `"t": "new"` (codegen-runnable Term::New
programs require the raw-buf milestone's plugin registry).
Registering would fail the coverage check. The `visit_term` arm
IS extended (compile-forced); only the enum registration is
deferred. Inline rationale in the source. Future milestone that
ships a Term::New fixture extends both sides.
- `crates/ailang-surface/src/print.rs` `write_term` Term::New arm
was added in Task 1 (not Task 2 as planned), because without it
ailang-core's tests fail to compile (the surface crate is in
the dependency graph of ailang-core's test binaries). Task 2's
round-trip pin verified the arm's correctness.
- Task 3 (synth elaboration) needed one implementer re-loop: the
first attempt over-qualified within-module type-references via
`qualify_local_types` on `new`'s signature when the home module
was the calling module itself. Fixed by skipping qualification
when `home_module == env.current_module`.
Architectural composition with prep.1: `Term::New` joins
`Term::Ctor` as a `type_name`-bearing site that goes through
`qualify_workspace_term`'s bare→qualified rewrite before the
checker sees it. The checker's `synth` arm for `Term::New`
therefore receives an already-qualified `type_name` (or a local
bare name for same-module construction).
Milestone status: kernel-extension-mechanics (Gitea #6) advances
2/3 iters. Next: prep.3 (kernel-tier modules + param-in), issue #33.
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b586999e81 |
iter prep.1-type-scoped-namespacing (DONE 5/5): TypeDef-first resolution + workspace pre-pass — closes #31
First iteration of the kernel-extension-mechanics milestone. Ships
the type-scoped `<TypeName>.<member>` resolution path as the
canonical form for type-associated operations, narrows the
`BareCrossModuleTypeRef` / `BadCrossModuleTypeRef` diagnostics from
"bare = strictly local" to "bare = in-scope by any path", migrates
12 std-library example fixtures, and introduces a workspace-wide
normalisation pre-pass `prepare_workspace_for_check` shared between
`check_workspace` and `monomorphise_workspace`.
Architectural discovery during implementation: the plan covered the
`Term::Var` dot-qualified resolver layer plus the workspace
validator's bare-name acceptance, but the migration of bare-form
fixtures exposed five sites where bare vs. qualified type-names
needed symmetric treatment — `Term::Ctor` resolution, `Type::Con`
well-formedness, mono's poly-free-fn name/constraint-count
enumeration, codegen's `lookup_ctor_by_type` bare-name path, and
the upstream desugar-then-qualify composition. Rather than
scattering TypeDef-first ladders across each site, the implementer
centralised the work into one pre-pass that walks every consumer
module's `Type::Con.name` and `Term::Ctor.type_name`, rewriting
bare cross-module references to their qualified `<home>.<Type>`
form. This is symmetric to the pre-existing `qualify_local_types`
(owner-side); the new pre-pass is the consumer-side mirror.
Downstream passes see qualified Types regardless of authoring form.
The TypeDef-first ladder still lives in `synth`'s `Term::Var` arm
because `<TypeName>.<member>` is term-position-only — `Maybe.from_maybe`
is a Var, not a Type expression, and the pre-pass does not rewrite
Var names.
Alternatives considered:
(a) Add TypeDef-first ladder at every resolution site separately
(the plan's implicit assumption). Rejected: O(N) extension
sites, each carrying the same workspace-walking logic; the
pre-pass version is O(1) — one pass, every downstream consumer
benefits.
(b) BLOCKED + spec re-brainstorm. Rejected: the architecture
extension is consistent with prep.1's thesis (bare type-name
resolves to the workspace-wide TypeDef) and forward-compatible
with prep.2 (Term::New.type_name falls under the same rewrite)
and prep.3 (kernel-tier TypeDefs enter the workspace map
automatically). No design regression to bounce back over.
Spec updated to document the realisation mechanism honestly: the
"Realisation mechanism — workspace pre-pass" subsection clarifies
that the resolver-level semantics described in "Implementation
shape" are the user-facing contract, and the actual code path is
the pre-pass.
Verification:
- `cargo test --workspace`: ALL GREEN. 87 e2e + every crate's unit
+ integration tests pass with no regressions.
- Three NEW in-source tests pin Task 1's resolver paths:
`type_scoped_member_resolves`, `type_scoped_member_not_found`,
`type_scoped_receiver_not_a_type`.
- One NEW workspace test pins the narrowed validator:
`ct1_validator_accepts_bare_with_explicit_import`.
- One renamed-and-flipped existing test:
`ct1_validator_rejects_bare_xmod_with_import_candidate` →
`ct1_validator_accepts_bare_xmod_with_import_candidate` (the
bare-with-import path is now ACCEPTED).
- One NEW companion test for the workspace-wide ctor lookup:
`ct2_term_ctor_bare_cross_module_via_workspace_resolves`.
- Two pre-existing tests' assertions updated for the new error
wording: `ct1_check_cli::check_human_mode_emits_actionable_message_to_stderr`
and `crates/ailang-check/tests/workspace.rs::unknown_module_prefix_is_reported`.
- 12 migrated `.ail` fixtures verified via the existing e2e
suite (each fixture is the test runner's target for an existing
`build_and_run` assertion).
- Negative fixture `ct_2_bare_cross_module.ail` semantically
preserved: dropped its `(import std_maybe)` so bare `Maybe` is
out-of-scope under the narrowed rule and still fires
`BareCrossModuleTypeRef`.
Concerns:
- The pre-pass introduces a new architectural layer (consumer-side
qualification) that the spec did not originally anticipate. Spec
amendment in this commit documents the layer. Future iterations
reference `prepare_workspace_for_check` as established
infrastructure.
- `examples/test_ct1_bare_xmod_rejected.ail.json` switched its
offending name from bare `Ordering` (which under the prep.1
semantics may now resolve via implicit prelude) to a still-
unresolvable `Mystery_Type`. The CLI test's intent (assert that
a human-mode `ail check` exits non-zero on a still-RED case) is
preserved.
Milestone status: kernel-extension-mechanics (Gitea #6) advances
1/3 iters. Next: prep.2 (`Term::New` construct) issue #32.
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832375f2ac |
convention: counter-prefix file naming across docs/specs/, docs/plans/, design/contracts/, design/models/
All 176 files in the four accumulating directories now use a zero-padded 4-digit counter prefix that reflects creation order (`NNNN-slug.md`). The counter is assigned per directory in strict git-log creation order; ties broken alphabetically by original name. The old `YYYY-MM-DD-` prefix on docs/specs/ and docs/plans/ files is dropped — the date is recoverable from git log and the counter carries the ordering. A file's counter is stable for the life of the file: never reassigned, never reused, never compacted. Deleted files retire their counter; subsequent files do not fill the gap. This is the property that lets cross-references stay literal — refs use the full filename including the counter (`design/contracts/0007-honesty-rule.md`) so they grep cleanly and resolve directly without a glob step. 313 cross-references updated across .md/.rs/.toml/.c/.json files (test pins, include_str! paths, design-INDEX entries, baseline notes, runtime C comments, inter-contract markdown links incl. bare basename and `../models/foo.md` forms). CLAUDE.md gets a new "File-naming convention" section spelling out the rule and rationale. skills/brainstorm/SKILL.md and skills/planner/SKILL.md updated so new spec/plan creation produces counter-prefixed names from the start. The full test suite (cargo test --workspace) passes. |
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Brummel
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26fb3459d8 |
GREEN: io/print_str byte-faithful via @fputs(@stdout) — closes #29
The runtime print path now writes exactly the bytes of its
argument with no implicit trailing newline. `io/print_str` is
byte-faithful; authors who want a newline emit `(do io/print_str
"\n")` themselves.
## Codegen
`crates/ailang-codegen/src/lib.rs`:
- Module preamble: `@puts(ptr)` → `@fputs(ptr, ptr)` plus
`@stdout = external global ptr` (libc's `FILE *stdout`).
- Effect-op lowering for `io/print_str`: emit
`getelementptr +8` then `load ptr, ptr @stdout` then
`call/tail call i32 @fputs(ptr bytes, ptr fp)`. Identical
bytes-pointer GEP, distinct sink.
- The pinned IR-shape test renames from
`print_str_calls_puts_with_bytes_pointer` to
`print_str_calls_fputs_with_bytes_pointer_and_stdout` and now
asserts: bytes-GEP present, stdout-load present, both module-
preamble declarations present, and no `@puts(` call anywhere
in the emitted IR.
## Why this shape, and not the alternatives
- *Rename `io/print_str` to `io/println_str` (issue #29 option 2)*
— kept the auto-newline, just relabelled it. AILang's design
bias is explicit-over-implicit (CLAUDE.md: implicit conversions
cut). Auto-newline is a hidden runtime augmentation; the rename
would have preserved it. Rejected.
- *Append `\n` inside the polymorphic `print` (Show-mediated)
function in `examples/prelude.ail`* — would have been a one-line
fix. Rejected: `print` is the Show-mediated formatter, not a
newline emitter; baking a newline into it would have re-imposed
the same implicit-augmentation problem one layer up, breaking
callers that legitimately want pure-bytes output.
## Fixture / test sweep
30 `.ail` fixtures whose owning tests asserted line-separated
stdout now emit explicit `(do io/print_str "\n")` after each
print. Tests that asserted on multi-line stdout (`show_print_e2e`,
`floats_e2e`, `str_concat_e2e`, `eq_ord_e2e`, several `print_*`
smoke tests) had their fixtures sweetened the same way; assertions
themselves remain the canonical observable output. Fixtures that
never relied on the newline (no test ever read the absence of one)
were left untouched.
## Migrated metadata
- `crates/ailang-core/tests/hash_pin.rs`: the `ordering_match::main`
canonical hash is refreshed (`b65a7f834703ffb4` →
`8ed47b4062ce00f5`). The comment now names both successive
corpus migrations honestly: the per-type-print-retirement (which
moved `(do io/print_int x)` to `(app print x)`) AND this
fputs swap (which wrapped that with `(seq ... (do io/print_str
"\n"))`).
- `design/contracts/str-abi.md`: the consumer-ABI table now lists
`@fputs` as the print sink. A prose paragraph documents the
byte-faithful semantics and references this issue.
- `examples/ordering_match.prose.txt`: regenerated from the
updated `ordering_match.ail`.
- `crates/ail/tests/snapshots/{hello,sum,max3,list,ws_main}.ll`:
IR snapshots regenerated via `UPDATE_SNAPSHOTS=1`.
- Stale `@puts` comments in `runtime/str.c`,
`crates/ail/tests/{e2e,show_print_e2e,print_no_leak_pin}.rs`
replaced with `@fputs`.
## Verification
- `cargo test -p ail --test print_str_no_auto_newline_e2e` — both
RED tests from commit
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c8ecfa39b9 |
RED: io/print_str must print exactly the bytes of its argument — refs #29
Two RED E2E tests that pin the byte-faithful-print property of io/print_str. Both fail today because the codegen at crates/ailang-codegen/src/lib.rs:2754 lowers the op to a C `@puts` call, which writes the string plus a trailing newline. - io_print_str_does_not_append_auto_newline: (seq (do io/print_str "a") (do io/print_str "b")) → stdout "ab" current: "a\nb\n" - io_print_str_does_not_double_embedded_newline: (do io/print_str "x\n") → stdout "x\n" current: "x\n\n" Assertions compare RAW stdout (no .trim()) — the byte-level property IS the assertion target. Empirically caught in the cross-model-authoring naming-A/B run on 2026-05-21 (experiments/2026-05-21-naming-ab/runs/r1/): Qwen3- Coder repeatedly wrote `(do io/print_str "text\n")` with explicit \n, expecting byte-faithful output, and got doubled newlines — failing every t3_main_prints stdout match across all three cohorts. GREEN side (codegen swap @puts → fputs(s, @stdout) + sweep of existing fixtures that implicitly relied on the auto-newline) is the next commit, via implement mini-mode. refs #29 |
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4d45bc6c56 |
audit + close: operator-routing-eq-ord — drift_found → post-audit tidy applied inline; CLEAN
Single-iter milestone closing Gitea #1. Architect surfaced 4 honesty-rule drift items (2 high, 2 medium) — all post-Task-13 documentation drift, no codegen behaviour shift. Bench all three scripts exit 0. Inline tidy applied under the CLAUDE.md trivial- mechanical carve-out (4 documentation/comment edits on architect- pre-named sites; no code surface change). No separate tidy iter. Architect: drift_found → CLEAN-after-tidy. The architect walked design/INDEX.md, the contracts touched by the milestone (float-semantics, prelude-classes, str-abi, scope-boundaries, authoring-surface, typeclasses, method-dispatch), `git log 86dd7d7..HEAD --format=full` for the three milestone commits (spec |
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5170b6abd1 |
iter operator-routing-eq-ord.1 (DONE 13/13): drop comparator builtins, route through Eq/Ord
Closes Gitea #1. Realises the "P2 follow-up" called out in examples/prelude.ail:9 — removes the surface comparator names `==` / `!=` / `<` / `<=` / `>` / `>=` from the language entirely, routes the LLM-author's `(app eq …)` / `(app compare …)` / `(app ne|lt|le|gt|ge …)` through prelude.Eq / prelude.Ord class- dispatch, ships six named Float-comparison fns (`float_eq`/`float_ne`/`float_lt`/`float_le`/`float_gt`/`float_ge`) so Float keeps comparability without an Eq/Ord instance, and emits primitive instance bodies with `alwaysinline` so the -O0 IR shape stays at one instruction per comparison. Plan-task journal (13 tasks, single atomic iter per Approach A): Task 1 — Bootstrap: 4 new fixtures (eq_user_adt_smoke.ail, eq_float_must_fail.ail, float_compare_smoke.ail, operator_unbound_check.ail) + 5 new E2E/pin tests as RED starting state. All 5 confirmed RED at start: north-star fixed `NoInstance Eq Unit` (preserved by Unit-eq opening line intentionally added in plan-self-review); float_compare unknown `float_eq`; operator-name typechecked (== still polymorphic); must-fail diagnostic lacked `float_eq`; alwaysinline absent from IR. Task 2 — Codegen alwaysinline + intercept arms: introduced `intercept_emit_wants_alwaysinline` allowlist + appended ` alwaysinline` between `)` and `{` of the `define` line in `emit_fn`; added 9 new intercept arms to `try_emit_primitive_instance_body` — `eq__Int`/`eq__Bool`/ `eq__Unit` + the six `float_*` arms. Task 3 — Prelude reshape: `instance Eq Unit` added; Eq Int/Bool bodies become placeholder-`false` (intercept overrides); six `float_*` free fns added; line-9 P2-follow-up comment removed. Lockstep hash re-pins: prelude_module_hash_pin (3abe0d3fa3c11c99 → new), mono_hash_stability six body-hash literals (eq__Int/Bool/Str + compare__Int/Bool/Str all shifted because placeholder body changes the canonical hash). IR-snapshot regen (hello/list/max3/sum/ws_main) rolled forward into this task at orchestrator's pragmatic call — prelude shift forces the snapshots immediately. Task 4 — Fixture migration: 58 .ail fixtures rewritten (`(app == …)` → `(app eq …)`, etc.; Float-typed operand sites to `(app float_eq …)` / `(app float_lt …)`). eq_ord_user_adt.ail:21 inner `==` → `eq` migration with lockstep eq_ord_e2e.rs:134 body-hash re-pin (3c4cf040cb4e8bb2 → new). Two prose snapshots accepted; deps test + 5 hash_pin literals updated as cascading consequences. Task 5 — Test-scaffold migration: all 8 in-source `#[cfg(test)] mod tests` AST-literal sites threaded (desugar.rs:2414, check/lib.rs:5656/6092/6220, codegen/lib.rs sites). 7 obsolete in-source tests deleted (5 eq_typechecks + 2 lower_eq ADT/Fn rejection — coverage moves to E2E eq_user_adt_smoke + eq_float_must_fail). 2 additional letrec tests deleted (single-module check env can't resolve eq/ge without prelude auto-import; covered by workspace E2E). Task 6 — Lit-pattern desugar: build_eq emits `Term::Var { name: "eq" }` instead of `"=="` at desugar.rs:1109; doc-comment rewritten to describe class-dispatch. Task 7 — Dead-machinery deletion sweep (compile-gated): typchecker builtins (install + list comparator entries deleted); codegen builtin_binop_typed (10 comparator arms deleted from synth.rs, table reduced to arithmetic core); lower_eq fn entirely deleted; `==` short-circuit in lower_app deleted; `is_static_callee` `==` clause deleted; `is_arithmetic_or_comparison_op` renamed to `is_arithmetic_op` + caller-update at codegen/lib.rs:2152 + :2529. Dead `poly_a_a_to_bool` helpers also removed. Workspace build green after compile gate — every caller of the deleted surface was migrated by Tasks 4-6. Task 8 — Float-aware NoInstance diagnostic: check/lib.rs:856-880 addendum extended to name `float_eq` / `float_lt` as the explicit alternative for Eq/Ord at Float; eq_float_noinstance.rs:32-44 assertion extended. Task 9 — IR snapshot regen: subsumed by Task 3 (prelude shift forced immediate snapshot regen; deferring to Task 9 would have left the workspace red between tasks). Task 10 — Prose-projection cleanup: 6 comparator arms deleted from binop_info; 3 in-source mod-tests updated/deleted (comparator-infix rendering would be dishonest now that the operators are no longer language identifiers). Task 11 — Contract updates: 5 design files rewritten to the class-dispatch present — float-semantics.md (arithmetic guarantees retained on +/-/*/; comparison guarantees transferred from ==/!=/< to float_eq/float_ne/float_lt/etc.); prelude-classes.md (Eq Unit added to instance list; new paragraph on six float_* fns; Float-no-Eq/Ord clause gains `→ use float_eq` cross-reference); str-abi.md (clause "REMAIN primitive operators" rewritten to describe class-method dispatch); scope-boundaries.md (multiple operator-name and Pattern::Lit-desugar clauses rewritten); authoring-surface.md (==, <= dropped from operator-example list). Task 12 — Initial acceptance gate: workspace 638/0 GREEN; bench/compile_check + cross_lang 0 regressed; bench/check.py flagged 4 regressions on bench_closure_chain (+29% bump_s, +47% rc_s, +29% bump_rss_kb, +48% rc_rss_kb). Orchestrator initially classified as DONE-with-concerns; Boss reclassified as PARTIAL-via-acceptance-#8-fail after independent re-run, extended iter scope to Task 13. Task 13 — Direct icmp intercept arms (Boss-extension): try_emit_primitive_instance_body gains direct-icmp arms for lt__Int / le__Int / gt__Int / ge__Int / ne__Int, bypassing the compare__Int → Ordering → match indirection that allocated one Ordering ctor per call in tight loops. Each new arm inherits `alwaysinline` via the existing allowlist (extended accordingly). New IR pin test `ord_int_intercept_ir_pin.rs` + smoke fixture `ord_int_intercept_smoke.ail` ratify the optimization — opt -O2 -S confirms zero `call @ail_prelude_lt__Int` in optimized IR; the icmp folds directly at every use site. Bool variants (lt__Bool/etc.) deliberately NOT added — no bench/example calls Ord at Bool; spec-extension permits skipping if unreachable at bench level. Family can be extended symmetrically when first Bool-ordered perf workload appears. Bench-gate post-Task-13: bench_closure_chain bump_s -6.05%, rc_s -2.67%, bump_rss_kb -0.77%, rc_rss_kb +0.46% — all four previously-regressed metrics back inside tolerance. Full bench corpus: 36 metrics, 0 regressed, 0 improved beyond tolerance, 36 stable. bench/check.py exit 0 ✓; bench/compile_check.py exit 0 ✓; bench/cross_lang.py exit 0 ✓. Workspace: 640 passed, 0 failed across all binaries (delta vs. milestone start: +5 new E2E/pin tests added in Task 1 + 1 IR pin added in Task 13 − 9 in-source mod tests deleted as obsolete net ≈ −3). The eq_user_adt_smoke fixture's Unit-opening line was the deliberate RED-first device added in planner self-review so the north-star wouldn't accidentally GREEN at start (user-ADT-Eq on Point with hand-written instance was already operable today; the milestone's actual delivery is operator-name death + Eq Unit + Float-named-fns + cleanup of the two-pathy primitive comparator machinery). Net delta: 96 files changed, 1760 insertions, 1101 deletions; 12 net-new files (6 new fixtures, 5 new E2E/pin tests, 1 stats file). main passes-test-count: 640 (was 633 pre-iter, accounting for the deletions). Spec-vs-acceptance addendum: spec §Testing strategy anticipated the bench-gate-regression case with two recovery paths (`alwaysinline` investigation or "spec needs revisiting toward α"). Task 13 is the third path — direct intercept arms for `lt`/etc. that bypass the compare→match path entirely. The spec's contingency clause was thus generous enough to absorb Task 13 without spec revision, but a future iter that hits a class-method primitive where the body shape introduces a similar codegen cost (Ordering allocation, RC tax, deferred-init) should expect a parallel extension. The pattern is "primitive instance whose canonical body indirects through other class methods that allocate" → add a direct-emit intercept arm + alwaysinline + IR-shape pin. Concerns absorbed: - Codegen lower_app / resolve_top_level_fn gained a prelude-fallback lookup so bare monomorphic prelude fns (`float_eq` etc.) resolve from non-prelude modules without explicit `prelude.float_eq` qualifier. Mirrors the typechecker's implicit prelude import — not in plan but necessary infra for the named-fn surface to be callable. - Recon's "≈10 fixtures" estimate was 6× too low — 58 actual. Mechanical migration; no design impact. - Recon caught 4 in-source AST-literal sites the spec missed (lib.rs:5656 `>=` site + three codegen/lib.rs sites); Task 5 covered all. - Recon caught 2 contract files outside the spec's update set that directly contradicted the milestone (str-abi.md + scope-boundaries.md "REMAIN primitive operators" / "Pattern::Lit desugar to ==" clauses); Task 11 covered all 5. Stats file: `bench/orchestrator-stats/2026-05-21-iter-operator-routing-eq-ord.1.json`. closes #1 |
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14a91f0ae5 |
iter boehm-retirement.1 (DONE 10/10): retire the transitional Boehm GC backend
Closes Gitea #4. Removes the Boehm-Demers-Weiser conservative GC backend wholesale across six layers in one atomic iteration. After this iter, `AllocStrategy` has two variants (`Rc`, `Bump`), `--alloc=gc` is rejected at CLI parse with `unknown --alloc value`, the libgc link arm is gone, and the design ledger describes RC (canonical) + bump (raw-alloc bench-floor) as the only allocators. Layer-by-layer summary: CLI surface — `crates/ail/src/main.rs`: `parse_alloc_strategy` arm `"gc" => Ok(AllocStrategy::Gc)` removed; error wording updated to `(expected `rc` or `bump`)`; clap-derive `value_parser = ["gc","bump","rc"]` allowlist on BOTH `Build` and `Run` subcommands DROPPED so that `parse_alloc_strategy` remains the sole gatekeeper for the unknown-value diagnostic (otherwise clap shadows the runtime diagnostic with `invalid value 'gc' for '--alloc'`, which would miss the milestone-pin's stderr substring check). The `default_value = "rc"` stays. Codegen — `crates/ailang-codegen/src/lib.rs`: `AllocStrategy::Gc` variant + `Default` derive removed (no caller of `AllocStrategy::default()` existed in the workspace, so the trait derivation was dead). `fn_name` (spec called it `runtime_alloc_fn` loosely; actual identifier is `fn_name`) drops the `Gc => "GC_malloc"` arm. `lower_workspace` and `lower_workspace_staticlib` defaults flip from `Gc` to `Rc`. In-source negative-complement codegen test (mod tests, lib.rs:3571ff) retargets from `AllocStrategy::Gc` to `AllocStrategy::Bump` (bump also doesn't emit per-type drop fns; the test's semantic "no drop fns under non-RC" is preserved). Link branch — `crates/ail/src/main.rs:2389ff`: The `match strategy { AllocStrategy::Gc => { ... cmd.arg("-lgc"); ... } }` arm and its libgc-link block are entirely gone. The surviving match exhausts on `Bump` and `Rc` (Rust's exhaustiveness check confirms; no `error[E0004]`). Staticlib-guard diagnostic rewritten to drop the "shared Boehm collector" phrasing while preserving the prefix `staticlib (swarm) artefact is RC-only` verbatim (the surviving `staticlib_bump_is_rejected` test depends on that substring). Test suite — 3 pure-differential e2e tests deleted (`gc_handles_recursive_list_construction`, `alloc_rc_produces_same_stdout_as_gc`, `alloc_rc_matches_gc_on_std_list_demo`); 9 RC-feature tests stripped of their `stdout_gc` build call and differential `assert_eq!(stdout_gc, stdout_rc, ...)` (absolute `assert_eq!(stdout_rc.trim(), "<n>")` pin retained as correctness oracle); `staticlib_gc_is_rejected` deleted; new milestone-pin `crates/ail/tests/boehm_retirement_pin.rs` asserts `ail build --alloc=gc` exits ≠ 0 with stderr containing `unknown --alloc value` and `\`gc\``; `examples/gc_stress.ail` fixture deleted (no remaining references). Implementer expansion (not in plan): `iter17a_local_box_alloca` (in `e2e.rs`) carried an IR-shape assertion against `@GC_malloc`-absence as the witness for non-escaping allocation. After the Task-2 codegen default flip, the witness shifts to `@ailang_rc_alloc`-absence in escape-targeted positions; assertion + doc-comment updated. Property protected ("no heap allocation in non-escaping contexts") is unchanged; only the named allocator shifts. Bench harness — `bench/run.sh` 9→6 column compaction (workload + bump(s) + rc(s) + rc/bump + bump RSS + rc RSS); gc-arm `bench_latency_implicit_gc` build call + harness invocation dropped from latency block; header comment reframed from "GC-overhead bench harness" to "RC-overhead bench harness"; "Decision 10's Boehm-retirement target (1.3x)" rewording to "RC-overhead-vs-bump bench-health regression gate". `bench/check.py:62` header-sentinel changes from `"gc(s)" in line` to `"bump(s)" in line`; column-count check at `:72` flips from `!= 9` to `!= 6`; per-workload field set drops `gc_s`/`gc_over_bump`/`gc_rss_kb`; `ARM_LABEL_TO_KEY` drops the `"implicit @ gc": "implicit_at_gc"` entry. `bench/baseline.json` regenerated via `--update-baseline`. Implementer note (planner-defect): `write_new_baseline` iterated over the *existing* baseline's metric list when emitting the regenerated file, so even after parser-level `gc_*` removal, the fallback emitted them back into the JSON. Scrubbed post-update; the cleaner fix (have `write_new_baseline` emit only keys present in `parsed_throughput[workload]`) is a follow-up if the script becomes load-bearing for further allocator changes. Design ledger — `design/models/rc-uniqueness.md` excises the `## Dual allocator — RC canonical, Boehm parity oracle` section and the `Boehm-Demers-Weiser conservative GC` choice block + rationale + trade-offs; the per-fn-alloca section generalises Boehm-specific language to allocator-agnostic; the memory-model section's `## Choice.` paragraph reframes the 1.3× target from "Boehm-retirement gate" to "bench-health regression gate". `design/models/pipeline.md` drops the `--alloc=gc → links libgc` arm of the pipeline diagram and replaces it with `--alloc=bump → links bump-floor`; the accompanying prose rewrites accordingly. `design/contracts/scope-boundaries.md` rewrites the "Memory management via Boehm conservative GC" bullet to describe RC + per-fn-arena present-tense; the dead reference to `examples/gc_stress.ail.json` (file never existed; the fixture only ever had a `.ail` form, deleted by this iter) is dropped along with the `examples/std_list_stress.ail.json` reference whose purpose was Boehm-only soak testing. `:67`'s `@printf` / `@GC_malloc` parenthetical updated. `design/contracts/memory-model.md:232` drops the "leaks like the pre-Boehm era" phrase; the RC inc/dec instrumentation is wired up, so the "until then" conditional that referenced pre-Boehm is closed. `design/contracts/embedding-abi.md:42-44` rewrites the staticlib-guard prose to drop the `--alloc=gc` clause (gc is now a CLI-parser-level unknown-value, not a staticlib-guard rejection) and reframe the swarm-safety justification around `--alloc=bump` (leak-only bench instrument) rather than the historical Boehm collector. Honesty pin — `crates/ailang-core/tests/docs_honesty_pin.rs` inverts the polarity: the present-tense Boehm-anchor assertion on `pipeline.md` (`:116-117`) is deleted, and four absence-pins are added to `design_md_has_no_wunschdenken` against the Boehm-zombie strings `transitional Boehm`, `parity oracle`, `GC_malloc`, `libgc`. The `design_corpus()` already includes `rc-uniqueness.md` so no path-list change was needed for the new pins to scan. `crates/ailang-core/tests/design_index_pin.rs:166` drops the `"pre-Boehm"` token from the protected-exception comment list (the phrase no longer appears in `memory-model.md` after this iter, so the exception is dead). Runtime docs — `runtime/bump.c`, `runtime/rc.c`, `runtime/str.c` header comments scrubbed of Boehm/`GC_malloc`/`libgc` references. `bump.c`'s function signature description still documents `void *bump_malloc(size_t)` as the bench-floor allocator interface, but no longer cross-references libgc. Example fixtures — `examples/bench_latency_implicit.ail`, `bench_latency_explicit.ail`, `escape_local_demo.ail`, `reuse_as_demo.ail`, `rc_pin_recurse_implicit.ail` doc-comment headers scrubbed of `--alloc=gc` / Boehm references. The `.ail` surface (AST) is untouched in every case; round-trip invariant holds (`cargo test -p ailang-surface --test round_trip` green). Skill / agent prompts — `skills/audit/agents/ailang-bencher.md` rewritten to use an RC-vs-bump worked example pattern for the hypothesis-driven bench tutorial, replacing the recurring "RC vs Boehm under heap pressure" example. `skills/implement/agents/ailang-implementer.md` Decision-10 / Boehm references replaced with present-tense RC-commitment framing. IR snapshots — the 5 checked-in snapshots (`crates/ail/tests/snapshots/{hello,list,max3,sum,ws_main}.ll`) regenerated via `UPDATE_SNAPSHOTS=1 cargo test -p ail --test ir_snapshot`. Each previously contained `declare ptr @GC_malloc(i64)` and (for `list.ll`) a `call ptr @GC_malloc(...)` invocation; post-flip the snapshots contain `declare ptr @ailang_rc_alloc(i64)` plus the rc inc/dec runtime declarations. Spec-vs-acceptance addendum (caught at orchestrator end-report, absorbed here rather than in a follow-up spec edit): spec §6 acceptance criteria said "Boehm-grep returns matches ONLY in docs_honesty_pin.rs". The plan itself prescribed historical Boehm references in 3 additional files: (a) the new milestone-pin `boehm_retirement_pin.rs` (must literally invoke `--alloc=gc` to assert its rejection), (b) `embed_staticlib_alloc_guard.rs` file doc-comment historical note ("`--alloc=gc` no longer exists as a CLI value"), (c) `embedding-abi.md:44-45` contract historical clause ("see the Boehm-retirement iter"). All three are prescribed; the spec's grep wording was too narrow. The four absence-pins in `docs_honesty_pin.rs` catch the actual zombies (Boehm-narrative re-emerging in the design ledger), which is the substantive intent the spec was aiming at — the four extra documented-by-design exceptions are the cost of having an explicit milestone-pin and contract-level historical anchors. Net delta: - 32 files modified, 2 new (boehm_retirement_pin.rs + stats), 1 deleted (gc_stress.ail); - workspace tests: every binary `0 failed`. Pass-count delta: -3 net (4 e2e tests deleted, 1 new milestone-pin test added); - boehm-grep state: hits only in the four by-design exceptions documented above; - `bench/check.py` exit 0 against regenerated baseline; - CLI must-fail fixture: `ail build --alloc=gc examples/hello.ail` exits non-zero with stderr containing `unknown --alloc value` and `\`gc\``; - design ledger present-tense honest (Boehm-narrative gone from `rc-uniqueness.md` + `pipeline.md`; the few historical references in `embedding-abi.md` / `boehm_retirement_pin.rs` / `embed_staticlib_alloc_guard.rs` are explicit milestone-pins or contract anchors, not silent ledger residue). Bench measurement variance noted: closure-chain and hof-pipeline are ±1-5% jittery between runs; one regeneration flagged 2 metrics as `regressed` before a second run returned 0. The captured baseline is within self-comparison range. Existing per-metric tolerances absorb the jitter. Stats file: `bench/orchestrator-stats/2026-05-20-iter-boehm-retirement.1.json`. closes #4 |
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7a42989b34 |
iter nullary-app.1 (DONE 5/5): accept (app f) as canonical zero-arg call
Resolves Gitea #12 — the design fork from the 2026-05-20 /boss session, surfaced independently by two prior fieldtests (mut-local F3 + loop-recur `run_forever`). Mechanics, layer by layer: Parser — `crates/ailang-surface/src/parse.rs:1322-1331` drops the 4-line `expected at least one argument` guard in `parse_app_body`. Grammar comments at file top change `term+` to `term*` on both `app-term` and `tail-app-term`; doc comment on `parse_app_body` changes `1+ args` to `0+ args`. Inline comment cites #12 and notes which layers below already accept empty args. Serde — `crates/ailang-core/src/ast.rs:419-425` annotates `Term::App.args` with `#[serde(default)]`, mirroring `Term::Ctor.args`'s *actual* attrs verbatim (no `skip_serializing_if`). Write behaviour unchanged — canonical JSON still emits `"args":[]` for nullary calls; only read behaviour gains tolerance for the `args` key being absent. Verified hash-impact-free at plan time: `grep -rn '"args":\[\]' examples/*.ail.json` returns zero matches, so no existing fixture's canonical bytes shift. Doc-honesty — `design/contracts/data-model.md`: (a) the `app` jsonc shape gains an explicit "args may be empty / read-tolerant" note; (b) the existing `ctor` comment claiming "args omitted when empty" was factually false (Ctor.args has no `skip_serializing_if`; a serde probe at plan time confirmed writes always emit `"args":[]`). Rewritten to describe the actual write/read asymmetry, with a cross-reference to the new `app` note. E2E pin — `crates/ail/tests/nullary_app_e2e.rs` + `examples/nullary_app_smoke.ail`. Defines `greet : fn() -> Unit !IO` and calls it as `(app greet)`; asserts stdout `"hello\n"`. RED→GREEN pin for the parser change AND the milestone-protecting E2E for nullary call surface going forward. Fixture literal is `"hello"` (no `\n`) because `io/print_str` lowers via `puts` which appends a newline — the plan body had a `"hello\n"` literal which would have yielded `"hello\n\n"`; the implementer caught and aligned to the canonical pattern in `examples/hello.ail` while writing the fixture, fix scoped to that single file. Layers below parser untouched: typechecker's arity check at `crates/ailang-check/src/lib.rs:3300` is `args.len() != params.len()` which is `0 != 0 → false` for nullary; codegen's `args.iter().zip(sig.params.iter())` at `crates/ailang-codegen/src/lib.rs:2410` is an empty loop; LLVM `call @ail_<mod>_<name>()` with empty arglist is valid; surface printer's arg-emit loop at `crates/ailang-surface/src/print.rs:430-434` writes nothing for empty args, producing exactly `(app f)`. Verification: full workspace `cargo test --workspace --quiet` green (0 failed across all crates); drift pins `design_index_pin 5/5` + `design_schema_drift 8/8`; round-trip `2/2`; new `nullary_app_e2e 1/1`. Stats file: `bench/orchestrator-stats/2026-05-20-iter-nullary-app.1.json`. closes #12 |
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Brummel
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13946219f5 |
fix(runtime): mirror surface .0-fallback in ailang_float_to_str
`runtime/str.c::ailang_float_to_str` now applies the `.0`-fallback
already enforced by the surface printer's `write_float_lit`
(crates/ailang-surface/src/print.rs lines 624-637): after the
existing `%g` snprintf, if `x` is finite and the rendered buffer
contains neither `.` nor `e`/`E`, append `.0` so a whole-valued
Float renders with Float-shaped text. The `isfinite(x)` fence
keeps `nan`/`inf`/`-inf` from matching the predicate and turning
into `nan.0`/`inf.0`. The 64-byte stack buffer's truncation guard
is extended by 2 bytes for the fallback path so the defensive
`abort()` discipline holds.
The alternative (document `%g`-without-fallback in the design/
ledger as a deliberate human-friendly contract) was rejected: the
language's stated ethos is machine-readability and round-trip
identity; the surface printer is the reference, runtime drift
from it is a defect not a feature.
Golden updates flow from the contract change. Three fixtures
encoded the old Int-shaped output for Float values:
- `crates/ail/tests/floats_e2e.rs`: `"4\n42\n-1.5\n"` →
`"4.0\n42.0\n-1.5\n"` (1.5+2.5=4.0, int_to_float(42)=42.0).
- `crates/ail/tests/e2e.rs::mut_sum_floats_prints_55`: `"55"` →
`"55.0"`. The accompanying doc comment used to canonicalise the
bug ("`%g` strips the trailing `.0` — so the canonical stdout
for Float 55.0 is `55`"); rewritten to reflect the new contract.
- `examples/mut_sum_floats.ail` docstring: same correction.
Two doc comments are updated where the post-fix contract differs
from the old text but the fixture golden does not change:
- `examples/float_to_str_smoke.ail` docstring (3.5 still renders
as `3.5` because `.` is already present — the fallback does not
fire).
- `crates/ail/tests/e2e.rs::float_to_str_smoke` doc comment (same
observation, made explicit so the trip-wire's intent is clear).
Verified: `cargo test -p ail --test print_float_whole_e2e` green
(was RED at
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Brummel
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f19b0dd860 |
test(runtime): RED — whole-valued Float must render with .0 suffix
Adds `examples/print_float_whole_smoke.ail` (single `(app print
2.0)`) and `crates/ail/tests/print_float_whole_e2e.rs`. The test
builds and runs the fixture through the public `ail build` CLI
and asserts stdout is `"2.0\n"`.
Currently FAILS with `left: "2\n"`, `right: "2.0\n"` — runtime
`ailang_float_to_str` uses libc `snprintf("%g", x)` which strips
trailing zeros, so a whole-valued Float prints as Int-shaped
text. The surface printer at
`crates/ailang-surface/src/print.rs::write_float_lit` (lines
624-637) already enforces the `.0`-fallback property; the runtime
drifts. This RED pins the desired symmetry.
The GREEN side will mirror the surface fallback in
`runtime/str.c::ailang_float_to_str` and update the
`floats_e2e.rs` golden (`"4\n42\n-1.5\n"` → `"4.0\n42.0\n-1.5\n"`)
plus the doc comments at `crates/ail/tests/e2e.rs` and in the
runtime/example files that documented the previous `%g`-without-
fallback contract.
The alternative (document `%g`-behaviour in design/ ledger §Float
semantics as a deliberate human-friendly contract) was rejected:
the language's stated ethos is machine-readability + round-trip
identity (CLAUDE.md §"AILang — a language for LLM authors"); the
surface printer is the reference, runtime drift from it is a
defect not a feature.
refs #7
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