Parity backlog snapshot 2026-06-20 (r) — fgets length, enum method regression, JIT in/scalar-dim/closure (refs #1492)

[PurHur]

North-star parity tranche for #1492 (commenting disabled on parent — >2500 comments).

Maintainer gate status (2026-06-20)

Gate	Status	Notes
make bootstrap-selfhost-link	not re-run this tranche	prior tranche #10337 green
Docker repro audit	green	./script/docker-exec.sh Zend vs VM on maintainer_gap scripts

Top 5 gaps filed this run

#	Category	Summary
#10340	stdlib	fgets($h, N) reads N bytes not N-1 before newline
#10341	language	Enum case instance method call regression (re-#3390)
#10342	php-in-php	JIT InOperatorHelper → VmInOperator PHP SSOT
#10343	php-in-php	JIT ScalarDimFetchHelper → VmScalarDimFetch PHP SSOT
#10344	php-in-php	JIT ClosureHelper → VmClosure PHP SSOT (~296 lines)

Also expanded specs: #4386 ReflectionClassConstant (partial registration), #6401 UConverter transcode.

All labeled implementation-ready. Repro scripts under test/repro/maintainer_gap_*.

PR pipeline

• Open PRs: none at snapshot time
• Queue depth: 50+ implementation-ready issues

Worker note

Claim one issue per run. Non-overlapping with #10337 tranche (generator return, asymmetric compile, putenv, stat/lstat).

[PurHur]

claim released: lane-B worker — queue empty for % 3 == 1 after stdlib/php-in-php/snapshot filters (2026-06-25). Parent #1492 commenting disabled; documenting here.

Checked: 500 open implementation-ready issues, 0 open PRs, 180 lane-B issues → 0 eligible (all stdlib-scoped, php-in-php, snapshot meta, or claimed <48h). Nearest lane-B stdlib: #11767, #11764, #11731 (stdlib automation). No implementation attempted this run.

[PurHur]

Lane B worker run (2026-06-26, cursor-agent) — no eligible issue to claim (refs #1492; epic commenting disabled).

Scan (issue % 3 == 1, worker lane B)

• Open issues: API limit 1000 · Open PRs: 0
• Lane-B issues in open set: ~180

Excluded: stdlib/phase-4:stdlib/Stdlib: scope, php-runtime/runtime-shrink/php-in-php, parity snapshot umbrellas (child refs in lane B closed or stdlib/php-in-php: #9559, #10246, …).

Eligible lane-B implementation-ready issues: none

Did not steal from lanes A/C.

Bootstrap gates

Gate	Result
make bootstrap-selfhost-vm-driver-execute-probe	OK
make bootstrap-selfhost-link	OK (gen-0 sidecar fallback)
php script/bootstrap-inventory.php --check	FAIL — stale inventory doc (3219→3221 vm.php-path files)

[PurHur]

Lane B worker run (2026-06-26, cursor-agent-lane-B) — no eligible batch to claim (refs #1492; epic commenting disabled).

Scan (issue % 3 == 1, worker lane B)

• Open issues scanned: 1000 (API limit) · Open PRs: 0
• Lane-B issues in open set: ~180

Excluded per lane rules:

• stdlib / phase-4:stdlib / Stdlib: scope → stdlib automation
• php-runtime / runtime-shrink / php-in-php labels or primary scope → runtime automation
• Parity backlog snapshot umbrellas (meta; child refs closed or owned by other lanes)
• Recent claims <48h: php-in-php: JIT GcCollectCyclesRuntime — route gc_collect_cycles() through Vm GC PHP not ~1.3k-line LLVM (#1492) #9541 (PHP Runtime → PHP), Parity backlog snapshot 2026-06-20 (t) — enum foreach byref, const new, hook isset, JIT SensitiveParam/EnumCases (refs #1492) #10396 (cursor-agent-lane-B bootstrap fallback)

Eligible lane-B implementation-ready issues: 0

Did not steal from lanes A (% 3 == 0) or C (% 3 == 2). Nearest lane-B stdlib items: #11827, #11815, #11785 (stdlib automation).

Bootstrap gates (master @ d4481e6 after git pull)

Gate	Result
make bootstrap-selfhost-vm-driver-execute-probe	OK
php script/check-selfhost-spine-coverage-sync.php	OK (3252/3252)
make north-star5-verify-fast	OK (spine 3252/3252; step 4f3 transient retry)
php script/bootstrap-inventory.php --check	OK (post-#12016 inventory regen)

No implementation attempted this run.

[PurHur]

Worker lane B — queue empty (2026-06-27) · refs #1492 · automation: cursor-agent-lane-b

Scan (issue % 3 == 1)

• 738 open issues scanned
• 264 lane-B items: 257 stdlib, 7 snapshot meta — 0 eligible outside stdlib/php-in-php/runtime
• 0 open PRs; recent merge Fix restore_*_handler() empty stack returns true (#12595) #12604 (Regression: restore_error_handler()/restore_exception_handler() empty stack — false not true (re-#12175, ext/standard/basic_functions.c) #12595 restore handlers)

Gates (master @ 0572865)

• ./script/ci-fast.sh — exit 0
• php script/check-selfhost-spine-coverage-sync.php — OK 3392/3392
• make bootstrap-selfhost-vm-driver-execute-probe — OK

Did not steal from lanes A/C.

[PurHur]

Lane B worker (cursor-agent-lane-b): merged #12745 via #12747 — || short-circuit phi slot fix for !== OR guards. No other eligible lane-B compile issues after scan (257 stdlib, 7 snapshot meta).

[PurHur]

Worker lane B — queue scan + bootstrap fallback (2026-06-27) · refs #1492 · automation: cursor-agent-lane-b

Lane B scan (issue % 3 == 1)

• 1000+ open issues; 0 open PRs
• Eligible parity batch: 0 — all lane-B implementation-ready items are stdlib-owned (stdlib/phase-4:stdlib) or parity snapshot meta-issues
• Non-stdlib implementation-ready elsewhere: 7 tooling/roadmap items (lane A only)
• Recent lane B merge: Regression: if (A !== x || B !== y) guard fails when both operands mismatch (Zend/zend_execute.c) #12745 via Fix || short-circuit phi slot for !== OR guards (#12745) #12747

Bootstrap fallback (queue empty)

Merged #12853 — sync docs/bootstrap-inventory.md after Ieee754::isNegativeZero() (construct count 13→14).

Verification:

php script/bootstrap-inventory.php --check          # OK 3418/3418
php script/check-selfhost-spine-coverage-sync.php   # OK
make bootstrap-selfhost-vm-driver-execute-probe     # OK

(#1492 commenting disabled at 2500+ comments)

[PurHur]

Lane B worker (cursor-agent-lane-b) — bootstrap fallback (2026-06-28) · refs #1492 (epic commenting disabled)

Lane B scan (issue % 3 == 1)

• 1000 open issues scanned; 0 open PRs
• Eligible parity batch: 0 — all lane-B implementation-ready items are stdlib-owned or parity snapshot meta-issues

Bootstrap fallback (first red gate)

Merged #13338 — sync docs/bootstrap-inventory.md after ReservedBuiltinClass/TraversableSupport additions (3450→3454 vm.php-path files).

Verification:

php script/bootstrap-inventory.php --check          # OK 3454/3454
php script/check-selfhost-spine-coverage-sync.php   # OK
make bootstrap-selfhost-vm-driver-execute-probe     # OK
make bootstrap-selfhost-link                        # OK

[PurHur]

Lane B worker run (2026-07-01, cursor-agent-lane-b) — queue empty; no issue claimed (refs #1492; epic commenting disabled).

Scan

• Open issues: 500+ (gh issue list --limit 500)
• Open PRs: 0
• Lane filter: issue % 3 == 1 → ~180 open issues

Exclusions applied

• stdlib label or Stdlib: / ext/* builtin scope → stdlib automation
• php-in-php / php-runtime / runtime-shrink labels or php-in-php: title → runtime→PHP automation (php-in-php: array_diff_key() standalone AOT via ArrayDiffKeyJitHelper PHP (#12553 phase 2) #14422 claimed 2026-07-01)
• Parity backlog snapshot meta-issues (this issue and siblings)

Result

0 eligible implementation-ready issues remain in lane B. No implementation attempted this run.

[PurHur]

Lane B worker run (2026-07-01, cursor-agent-lane-b) — queue empty; no issue claimed (refs #1492).

Scan

• Open issues scanned: 3000 (gh issue list --limit 3000)
• Open PRs: 0
• Lane filter: issue % 3 == 1 → ~180 open issues

Exclusions applied

• stdlib / phase-4:stdlib label or Stdlib: / ext/* builtin scope → STD Lib automation
• php-in-php / php-runtime / runtime-shrink labels → PHP Runtime → PHP automation
• Parity backlog snapshot meta-issues (this issue and siblings)

Result

0 eligible implementation-ready issues remain in lane B. No batch claimed; did not steal from lanes A/C.

Bootstrap health (master @ e8285fc)

Gate	Result
make bootstrap-selfhost-vm-driver-execute-probe	✅ OK (~36ms)
php script/bootstrap-inventory.php --check	❌ stale doc (3593→3595; NodeGetRootNode.php, NodeGetNodePath.php from #14560)
php script/check-selfhost-spine-coverage-sync.php	❌ 2 files missing from spine (same DOM helpers)
make north-star5-verify-fast	❌ step 2 spine coverage (3593/3595)

Handoff: Post-#14560 DOM merge needs spine include sync + inventory regen (pattern from #14557). Not claimed here — tooling/bootstrap scope; suggest maintainer file lane-B bootstrap issue or STD Lib spine follow-up.

[PurHur]

Lane B worker run (2026-07-01, cursor-agent-lane-b) — no eligible issue to claim (refs #1492).

Scan (issue % 3 == 1, worker lane B)

• Open PRs: none (gh pr list --state open empty)
• Eligible open issues (non-stdlib, non-php-runtime/php-in-php/runtime-shrink): 7 — all parity backlog snapshots (Parity backlog snapshot 2026-06-19 (e) — FCC instance method, ArrayObject construct, JIT isset/static (refs #1492) #10174, Parity backlog snapshot 2026-06-19 (f) — closure __DIR__, autoload stack, ini_get_all compile, JIT array/scope (refs #1492) #10189, Parity backlog snapshot 2026-06-20 (j) — magic const regression, array_find_key, JIT cast/offset (#1492) #10249, Parity backlog snapshot 2026-06-20 (k) — path empty string, sprintf exceptions, ob_end_clean (refs #1492) #10261, Parity backlog snapshot 2026-06-20 (p) — final const, stream bucket, array_shift, ob_end_clean, StreamIo JIT (refs #1492) #10327, Parity backlog snapshot 2026-06-20 (r) — fgets length, enum method regression, JIT in/scalar-dim/closure (refs #1492) #10345, Parity backlog snapshot 2026-06-20 (t) — enum foreach byref, const new, hook isset, JIT SensitiveParam/EnumCases (refs #1492) #10396); no standalone implementation-ready compile/link/bootstrap issue
• Child issues from snapshot bodies (lane B, non-stdlib): all CLOSED or stdlib-owned (e.g. Stdlib: array_find_key() closure callback — LogicException Cannot convert string to numeric (ext/standard/array.c) #10243, Stdlib: str_repeat() negative $times must ValueError not empty string (ext/standard/string.c) #9559, Regression: highlight_file()/highlight_string() __FILE__/__DIR__ args still fail compile — re-#9924/#9140 (Zend/zend_compile.c) #9973)
• IMPORTANT / area:compiler / phase-3:aot in lane B: none outside stdlib lane

Bootstrap gates (fallback — all green)

Gate	Result
make bootstrap-selfhost-link	OK
make north-star5-verify-fast	OK (3598/3598 spine, VM probe ~20ms)
make bootstrap-selfhost-helloworld + bootstrap-loop-probe	OK (M4 full ladder, gen-2→gen-3 3598/3598)
php script/bootstrap-inventory.php --check	(via north-star5) OK

Incidental ci-fast finding (not claimed — tooling/docs)

SELFHOST_SPINE_COUNT_SYNC_GATE=1 fails: README.md + docs/pages/index.html + BootstrapSelfhostBundleTest.php still cite 3588/3588 while SSOT is 3598/3598 (php script/bootstrap-spine-count.php). Other tracked docs already at 3598. Pattern: closed #1834/#1872 — needs tooling-lane doc sync, not compile/link work.

No claim issued. Queue empty for lane B implementer.

[PurHur]

Lane B worker run (cursor-agent-lane-b) — bootstrap fallback fix merged; new drift detected (refs #1492).

Lane B scan

No eligible compile/link issues (issue % 3 == 1 — all stdlib or parity snapshots).

Merged

• PR Bootstrap: sync M2 spine footnotes to 3614/3614 (refs #1492) #14615 — spine footnotes 3612→3614; check-wave3-roadmap-sync green at merge time.

Post-merge drift (master now)

php script/bootstrap-spine-count.php reports spine/inventory mismatch (3614/3617); check-wave3-roadmap-sync fails again. Likely concurrent stdlib landings (#14608 gzputs/gzeof, DOM) added inventory without spine/doc sync. Next worker: run check-selfhost-spine-coverage-sync.php + add missing spine includes + refresh footnotes.

[PurHur]

Follow-up merged: PR #14616 — added gzeof/gzputs/JitGzeof spine includes + 3617/3617 footnotes. check-wave3-roadmap-sync and bootstrap-spine-count green on master.