Brummel
6fdb45d2f2
Single iter shipping the post-milestone-24 follow-up named in
docs/specs/2026-05-14-retire-per-type-print-effects.md. After this
iter the only surviving direct-output effect-op is `io/print_str`;
all per-type print primitives are replaced by the polymorphic
`print` helper (prelude, iter 24.3).
Components:
- 92 examples/*.ail fixtures migrated (do io/print_<T> x) →
(app print x); 6 .prose.txt snapshots regenerated via `ail prose`.
- Four-site lockstep compiler deletion: crates/ailang-check/src/builtins.rs
(3 effect_ops.insert blocks + 3 list() rows + the
install_io_print_float_signature test + module + EffectOpSig
doc-comments); crates/ailang-codegen/src/lib.rs lower_app
(3 arms + lowers_io_print_float test); crates/ailang-codegen/src/synth.rs
builtin_effect_op_ret match-arm pattern. Dead `intern_string`
helper removed as a follow-up.
- Five incidental test-body migrations (ailang-check x2, ailang-core
spec_drift + design_schema_drift, ailang-surface/src/lex.rs,
ailang-prose/src/lib.rs round-trip test).
- Cat B test-harness patch: six IR-shape tests in
crates/ail/tests/e2e.rs gained a monomorphise_workspace call
before lower_workspace_with_alloc so they follow the same
pipeline as `ail build` (the home-rolled desugar+lift loop
stayed because mono's precondition is "already lifted"; mono
inserts after lift).
- Six doc-comment touch-ups (lex.rs module doc, parse.rs
diagnostic example, ail/src/main.rs x2, runtime/str.c %g anchor,
crates/ailang-core/specs/form_a.md surface-spec example).
- DESIGN.md seven-site sweep (Decision 11 example, Polymorphic
print past-tense, Heap-Str output sentence, effect-op
invocation comment, Float NaN paragraph re-anchored on
float_to_str, two "What is supported" lists).
- Three E2E test-comment polish + four IR-snapshot refresh + one
canonical-hash pin update (plan-unanticipated downstream
consequences of the corpus migration).
- bench/{check,compile_check,cross_lang}.py: all exit 0; no
ratification needed.
- Roadmap entry struck through; per-iter journal at
docs/journals/2026-05-14-iter-rpe.1.md.
Tests 564/0/3. cargo clippy and cargo doc: zero warnings.
Two upstream codegen bugs surfaced during the first BLOCKED
attempt and were fixed in separate iters before this retry:
- 1fb225e bugfix: mono cursor misalignment at poly-free-fn Var
with class-constrained Forall.
- feb9413 bugfix: print leak — propagate ret_mode through rigid
substitution + prelude Show.show ret_mode.
Known debt (carried forward for next /audit):
- Emitter.strings field is functionally dead post-iter (orphan
after intern_string removal); cycles over empty map harmlessly.
56 lines
1.6 KiB
Plaintext
56 lines
1.6 KiB
Plaintext
; Iter 18d.4 regression fixture: under --alloc=rc, codegen's
|
|
; "pattern-binder dec at arm close" (Iter A) was firing on
|
|
; pattern-bound pointer fields whose enclosing fn is Implicit-
|
|
; mode. Result: a free of memory the caller still references.
|
|
;
|
|
; Symptom under --alloc=rc before the fix:
|
|
; - Implicit-mode pin/loop: refcount underflow at runtime.
|
|
; - Same code under --alloc=gc: clean exit, prints `0`.
|
|
;
|
|
; Pattern shape: a heap-allocated value `t` shared between a
|
|
; callee that pattern-destructures it (pin) and a recursive
|
|
; call that re-passes it (loop). Pattern arm binds the children
|
|
; (l, r) without consuming them — pre-fix, codegen emitted a
|
|
; drop on each, freeing memory still referenced via the outer
|
|
; let-binder `t`.
|
|
|
|
(module rc_pin_recurse_implicit
|
|
|
|
(data Tree
|
|
(ctor TLeaf)
|
|
(ctor TNode (con Int) (con Tree) (con Tree)))
|
|
|
|
(fn build
|
|
(type (fn-type (params (con Int)) (ret (con Tree))))
|
|
(params d)
|
|
(body
|
|
(if (app == d 0)
|
|
(term-ctor Tree TLeaf)
|
|
(term-ctor Tree TNode 1
|
|
(app build (app - d 1))
|
|
(app build (app - d 1))))))
|
|
|
|
(fn pin
|
|
(type (fn-type (params (con Tree)) (ret (con Int))))
|
|
(params t)
|
|
(body
|
|
(match t
|
|
(case (pat-ctor TLeaf) 0)
|
|
(case (pat-ctor TNode v l r) 1))))
|
|
|
|
(fn loop
|
|
(type (fn-type (params (con Int) (con Tree)) (ret (con Int))))
|
|
(params n t)
|
|
(body
|
|
(if (app == n 0)
|
|
0
|
|
(let _v (app pin t)
|
|
(app loop (app - n 1) t)))))
|
|
|
|
(fn main
|
|
(type (fn-type (params) (ret (con Unit)) (effects IO)))
|
|
(params)
|
|
(body
|
|
(let t (app build 2)
|
|
(app print (app loop 3 t))))))
|