aaa70d4c35def6c8a0fecbb222cbc7e70a03be5b
4 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 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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|
Brummel
|
1fb225ee25 |
bugfix: mono cursor misalignment at poly-free-fn Var with class-constrained Forall
When `synth` visits a `Term::Var v` where v is a polymorphic free fn whose `Type::Forall` carries class constraints (e.g. `print : forall a. Show a => ...`, `lt`/`le`/`gt`/`ge : forall a. Ord a => ...`), it pushes BOTH a class `ResidualConstraint` for each constraint AND a `FreeFnCall` observation at the same Var site. The mono walkers (`interleave_slots` collection-side and `rewrite_mono_calls` rewrite-side) consumed only ONE slot per such Var, leaving the class-residual cursor misaligned for every subsequent class-method call in the same body. The next `eq`/`compare` Var in the body then consumed the leftover `Show T` / `Ord T` slot and was mis-rewritten — codegen reported `call prelude.show__Bool arg type mismatch: expected i1, got i64` (or the Int dual). Fix: new `poly_free_fn_constraint_counts_for_module` registry in mono.rs (sibling to `poly_free_fn_names_for_module`) maps each synth-visible poly-free-fn name to its declared constraint count. Threaded into `collect_residuals_ordered`, `interleave_slots`, and `rewrite_mono_calls`. Both walkers now advance the cursor by 1 + N (FreeFn slot + N class-residual fillers) at every poly-free-fn Var. RED test `print_with_class_method_arg_does_not_misalign_mono_cursor` (crates/ail/tests/show_print_e2e.rs) + fixture examples/print_eq_arg_repro.ail pin the bug — body `(app print (app eq 1 2))` previously crashed at codegen, now prints "false". Bug surfaced 2026-05-14 during the rpe.1 BLOCKED orchestrator run; existed in latent form since iter 24.3 (the poly-free-fn-with-class- constraint synth shape was new there). No schema / codegen / DESIGN.md changes. cargo test --workspace: 564 / 0 / 3. |
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Brummel
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77b28ad64d |
iter form-a.1 (Tasks 1-5): additive phase + relocation
First half of the form-a-default-authoring milestone-close iter (Boss-decided strategy C, big-bang). All five tasks DONE; cargo test --workspace green at every per-task boundary. T1 — Add three new tests: - parse_is_deterministic_over_every_ail_fixture (round_trip.rs) - cli_parse_then_render_then_parse_is_idempotent (roundtrip_cli.rs) - carve_out_inventory.rs (new file; #[ignore]'d until T8 deletion) T2 — Bulk-render the 99 missing examples/<stem>.ail files via `ail render`. Corpus 58 .ail (pre-iter) -> 157 .ail. Eight .ail.json carve-outs (7 §C4(a) subject-matter + 1 §C4(b) prelude) preserved. One re-loop triggered: load_workspace prefers .ail siblings since ext-cli.1, so the newly-rendered imports broke seven Group-A entries whose JSON entry-paths now resolved imports to fresh .ail. Repair: pre-emptive forward-pull of five T3 migrations + 4 transient #[ignore]s on workspace.rs mod tests (cleanly relocated in T5). T3 — 14 Group-A test files migrated from ailang_core::load_workspace to ailang_surface::load_workspace + .ail paths. Carve-out lines preserved verbatim (7 sites in typeclass_22b2.rs / typeclass_22b3.rs). T4 — 12 Group-B test files: bulk regex flip on build_and_run / build_and_run_with_alloc / build_and_run_with_rc_stats call sites (~70 e2e.rs invocations + 11 subprocess sites). Four files mis-classified Group-A as Group-B in plan recon (mono_hash_stability, prelude_free_fns, print_mono_body_shape, show_mono_synthesis); two files mis-classified Group-B as Group-A (mono_recursive_fn, mono_xmod_qualified_ref). Migrated per actual shape, not plan label. T5 — Relocated #[cfg(test)] mod tests from production source to integration test crates with ailang-surface dev-dependency: - crates/ailang-core/tests/hash_pin.rs (10 tests from hash.rs) - crates/ailang-core/tests/workspace_pin.rs (10 non-carve-out tests from workspace.rs) - crates/ailang-codegen/tests/eq_primitives_pin.rs (3 tests from codegen/src/lib.rs:3717-3799) - ailang-prose/tests/snapshot.rs migrated (helper + 8 fixtures) to .ail + ailang_surface::load_module Carve-out tests in workspace.rs mod tests preserved in-place (3× 22b2 + 3× ct1 = 6 tests). Tempdir-based loader-mechanism tests (3 sites) also preserved — they don't consume examples/. Tests: 560 passed, 0 failed, 4 ignored (was 558 + 3 T1 new - 1 transit carve_out_inventory #[ignore] = 560 active). Tasks 6-12 (bench-driver suffix flips, e2e diff-test rewrite + 4 additional raw-JSON-inspect handlers, .ail.json deletion, retiring obsolete roundtrip tests + schema_coverage corpus flip, §C3 DESIGN.md restatement, §A4 doctrine edits, WhatsNew + roadmap strike) ship in the next dispatch on this iter ID. Known debt inherited to T6-12: 4 raw-JSON-inspect tests in e2e.rs (borrow_own_demo / reuse_as_demo / render_parse_round_trip_canonical / ail_run_accepts_ail_source_with_same_stdout_as_ail_json dual-form smoke) need rewrite or #[ignore] before T8 deletion; recorded in journal Concerns + Known debt sections. |
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Brummel
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246b5c7455 |
iter 24.3: fn print + E2E + 3 compiler-path repairs; milestone 24 close
Ships fn print : forall a. Show a => (a borrow) -> () !IO in the
prelude with explicit-let body \\x -> let s = show x in do
io/print_str s. Three new E2E fixtures + tests verify the full
path:
- show_print_smoke: 4 primitives smoke (print 42 / true / 'hello' /
3.14) — compile, run, expected stdout
- show_user_adt: data IntBox + instance prelude.Show IntBox +
print (MkIntBox 7) — stdout '7'
- show_no_instance: let f : Int -> Int = \\x -> x in do print f —
fires Show-aware NoInstance with DESIGN.md §Prelude(built-in)
classes cross-reference
IR-shape pin in print_mono_body_shape.rs asserts post-mono
print__Int.body is structurally Term::Let → App(show__Int) →
Do(io/print_str). Protects the explicit let-binder for the heap-Str
RC discipline per eob.1 Str carve-out.
Three plan-defects-fixed-inline surfaced during user-ADT E2E,
necessary repairs to make the spec's stated user-ADT trajectory
work end-to-end:
(a) mono.rs (2 sites): MonoTarget::FreeFn::type_args were carrying
bare type-cons references; normalised to canonical
<owner>.<bare> form via workspace_registry.normalize_type_for_lookup
so synthesised cross-module bodies' post-mono walks reach the
registry-keyed instance entries. Symmetric to the existing
class-method-arm normalisation.
(b) codegen/lib.rs (3 sites: resolve_top_level_fn, lower_app
cross-module arm, synth_with_extras Var arm): post-mono
synthesised bodies may carry cross-module references to modules
their source template didn't import (prelude.print__<UserType>
references show_user_adt.show__<UserType> even though prelude
does not import user modules). Fall back to direct
module_user_fns lookup when prefix not in import_map. Both
ends were independently typechecked before mono ran; the
cross-module ref is created by mono not by source.
(c) lib.rs synth FreeFnCall arm: walked Type::Forall.constraints,
substituted rigid vars with fresh metavars, pushed one
ResidualConstraint per declared constraint. Without this,
print f at Int -> Int would silently typecheck and fail with
a confusing 'unknown variable: show' at codegen rather than
fire the right typecheck-time NoInstance diagnostic.
NoInstance Float-aware arm in check/lib.rs:770-779 extended with
a parallel class == 'prelude.Show' branch that cross-references
DESIGN.md §Prelude(built-in) classes verbatim. Negative-fixture
test asserts code 'no-instance' + Show substring + Prelude-(built-in)-
classes substring.
DESIGN.md §Prelude(built-in) classes milestone-24 paragraph flips
fn print from 'ships in 24.3' to 'shipped in iter 24.3' with body
shape + pin file reference. §Float semantics gains a Show-Float
NaN-spelling cross-reference paragraph linking show 1.5 / show nan /
show inf to instance Show Float via float_to_str.
Roadmap P1 'Post-22 Prelude — Show + print rewire' flipped to [x]
with closing summary naming all three shipped iters (24.1 / 24.2 /
24.3). New P2 entry 'Retire io/print_int|bool|float effect-ops +
migrate example corpus to print' inserted at top of P2.
Tests: 556 passed (was 552 + 4 new). bench/cross_lang exit 0;
bench/compile_check + bench/check exit 1 on documented noise-class
metrics per the audit-cma lineage envelope (8th consecutive
audit-grade observation, baseline pristine per conservative-call).
Milestone 24 closes structurally with this iter. Standard audit
pipeline next.
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