integration: train 5 — Rule 2b reads smart-pointer members (#282), assigned members and base-class members - #284
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…rded no type, so calls through it guessed The member-field capture that feeds Rule 2b (ingest_relations.h captureFields) read a qualified type only when a plain name sat directly under the `::`. In `std::unique_ptr<ToolOutputFile> OutputFile;` that name is a template, so the member recorded no type at all, and `OutputFile->keep()` took the bare-name ladder instead: a split, a locality pick, or no edge. The fix, decided by measurement: - A member written `std::unique_ptr<T>` or `std::shared_ptr<T>` records T's final segment and T's written namespace (so `std::unique_ptr<std::string>` is refused like any std type), marked viaArrow. A pointer to the smart pointer, `T[]`, a primitive and a qualified-template pointee record nothing, as before. - Every C++/ObjC call reference records whether its member access was written `->` (RawRef/Reference::viaArrow). Rule 2b requires it on an arrow-only field: `p->m()` narrows to T::m, and `p.m()` is left alone because it names the smart pointer's own member. The ref record grows one u8: kCacheVersion 22 -> 23, and kParserVer 103 -> 104 (next free over main; a train renumbers it), with both quality.h mirrors. - The Class#field table's entry (resolve.h FlatRecvType) carries arrowOnly. The same type reached through `->` alone in one same-named class and as the member itself in another is a conflict and tombstones, as two types do. - `--uses=Owner.field` reads the same record: `w_->level` pins to the pointee's field. A std smart pointer has no data members, so no `.` read can mean anything else. - The HAS-A block draws no edge for the new records, so its output is unchanged. Rejected by measurement: recording every other `std::Tmpl<...>` member (std::vector, std::optional, std::unordered_map) as a std type, which only tombstones same-named classes' members. On rocksdb and llvm-project it moved 6 sites and every one got worse: 4 correct narrows lost, 1 turned into a wrong split, and 1 moved to the enclosing class's own same-named method. It refused no wrong narrow. Measured with --pin-census --no-cache, C rows joined on (caller id, callee, line) against a5ce95e: - rocksdb @ 0e2801ac3: 809 retargeted (448 gained, 355 changed, 6 lost), bound +442. - llvm-project @ 4d5358b1d: 793 retargeted (498 gained, 295 changed, 0 lost), bound +501. - A seeded (20260917), blinded, stratified sample of 60 retargets graded against source by independent graders: 53 better, 4 same, 3 worse. The 3 worse sites are limits Rule 2b already had, now reached through a smart pointer: a pointee name shared with nested `Iterator` classes, and two overload picks that miss a default argument. - The `->` bit is needed. Without it, 9 llvm sites (`MC.reset(...)`, `MII.get()`) bind the pointee's same-named method. A smart-pointer member-name list cannot replace it either, because it would also refuse 38 correct `->get()`/`->reset()` narrows. - The rocksdb cache grows 356,502 B (+1.15%). The warm census equals the cold one. Gate: test/fieldnarrowcheck.sh arm p. Red on a5ce95e: p1-p4 (the narrow), p7 (--uses), all four p8 tombstones and p9 (warm cache). Three mutations were run and reverted: - ignoring the `->` bit reds p5 (`w_.reset()`); - reading through any template reds both p6 in-repo template controls; - dropping the arrow-only tombstone reds a p8 row. test/cachefuzzcheck.sh's record walker learns the new byte. The kMinRefRecordBytes tripwire caught the stale 39. test/qschemetrip.hash is re-pinned, with a log entry. Not fixed here, both measured. llvm LVReader.cpp:175 `OutputFile->keep()` still has no edge: the assignment `OutputFile = std::make_unique<ToolOutputFile>(...)` two lines up mints a local binding, and Rule 2b's local-shadow veto refuses the member. Deleting that line from a copy makes the site narrow to ToolOutputFile::keep. SampleProfile.cpp:1962 `Reader->read()` names a member of the base class SampleProfileLoaderBaseImpl, and Rule 2b looks fields up on the enclosing class only. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…ptr, which Rule 2b now reads test/localitycheck.sh arm 6 pins the S6-C rule that an explicit receiver whose type no receiver rule established keeps no scope-segment credit, so delegation through such a member splits instead of pinning the caller's own class. Its example member was `std::unique_ptr<Target> rep_`. The previous commit makes that member readable, so on its binary `rep_->pick( n )` lands on Target::pick alone (receiver-rule), the right answer. Arm 6 failed, and so did canoncheck, which runs it. That was the full suite's only real failure: gates=646 pass=642 skip=2 fail=2. Arm 6 keeps its intent with a member type Rule 2b still cannot read, `ns::Handle<Target> rep_` (a qualified non-std template), and still splits over the three same-file picks. New arm 6b asserts the smart-pointer member narrows to Target::pick by receiver-rule. 6b is red on a5ce95e (a split) and green here. Fixture line numbers are unchanged. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
… call through it in the derived class guessed Rule 2b (resolve.h Narrower::rule2bFieldRecvType) typed a bare member receiver from the "Class#field" table keyed by the caller's own class only (fieldEntryAt). A member the class inherits was never found. In llvm-project SampleProfile.cpp, `class SampleProfileLoader final : public SampleProfileLoaderBaseImpl<Function>` calls through the base's `std::unique_ptr<SampleProfileReader> Reader;`, and `Reader->getSummary()` took the bare-name ladder. The fix: - fieldEntryAt: when the class declares no member of that name, walk its bases breadth-first over chaUp (final-segment names, the discipline methodOnTypeOrBases uses). The shallowest level with a base DECLARING the member decides, and it must be exactly one base; its typed entry is returned (a tombstone or an arrow-only pointee is handled as before). - "Declared" is the field side table (IngestResult::fields, Narrower::memberFieldNames), typed or not. An untyped member of the class itself, or of a base at a level before the hit, hides the bases behind it and refuses. So do two declaring bases at one level (an ambiguous lookup) and a walk the 16-name cap cut with a base unvisited. - The local-shadow veto is unchanged. prov="final-segment" (fieldFinalSegmentAt) reads the same walk. - Rule 2b's tables travel as one FieldRecvTables bundle (types, declared, chaUp), so no signature grows. kFieldWalkCap is hoisted to the struct, and methodOnTypeOrBases shares the base expansion (expandWalkLevel); its visited set, and so its answers, are unchanged. - graph.h builds the declared-member set once beside the Narrower and stays line-neutral above rankGraphTeleport. docs/LIMITS.md is regenerated for kFieldWalkCap's note (value and class unchanged). lane/rule2c-member-field (#280) builds the same set under the same name for Rule 2c; a train keeps one. Dependent bases were measured, not refused. C++ lookup never searches a class template's dependent base for a bare name, but the base clause records no template arguments, so a refusal needs an extraction change. A source scan of every retarget found 5 of 2,203 sites in a class template with a dependent base, and all 5 are correct: three PtrUseVisitor sites reach its non-dependent PtrUseVisitorBase, and two ELF_ppc64.cpp sites reach `using Base::G;`. A refusal would lose five right edges and fix none. It stays a pinned floor (arm v12). Measured with --pin-census --no-cache, C rows joined on (caller id, callee, line): - previous commit (ad7a9d5, #282's head) -> this one: - rocksdb @ 0e2801ac3: 374 retargeted (236 gained, 138 changed, 0 lost), bound +236; - llvm-project @ 4d5358b1d: 1,829 retargeted (731 gained, 1,098 changed, 0 lost), bound +735. - main a5ce95e -> this one (includes #282): - rocksdb: 1,183 (684 / 493 / 6), bound +678; - llvm: 2,622 (1,229 / 1,393 / 0), bound +1,236. - A seeded (91717), blinded, stratified sample of the lane's retargets (rocksdb gained 10, changed 10; llvm gained 20, changed 20) was graded against source by independent graders: 52 better, 3 same, 5 worse. In all 60 the grader traced the receiver to a member of a base class. The 5 worse sites are Rule 2b's existing type-side limits: a class name shared across namespaces (llvm::Module / sandboxir::Module x2, Sema / comments::Sema x1) and two overload picks that ignore the argument count. The 3 same are rocksdb DB::Get/Put overload picks, WRONG on both sides. - Refactor steps were checked census-byte-identical on both corpora against the graded build. llvm wall time is 4.7 s on both builds. Not fixed, measured: SampleProfile.cpp:1962 `Reader->read()` still declines. `Reader = std::move(ReaderOrErr.get());` five lines up records a local binding, and the veto refuses the member. A fixture reproduces it, and deleting that line narrows it. It is the same shape as LVReader.cpp:175 in #282. `--uses=Owner.field` keeps its own class-only member lookup; its legend discloses the inherited field as not seen. Gate: test/fieldnarrowcheck.sh arm v (generated fixture). - Red on ad7a9d5 (8 FAIL): v1 x3 (unique_ptr, raw pointer, out-of-line method), v2 (two levels), v4 (the narrow and its prov), v10 (the 16th name), v12 (floor). The same 8 are red on main. Controls v3, v5-v9, v10 far and v10w are green. - Mutations on a scratch build, reverted: - counting only typed members as declared reds v6 and v7; - taking the first declaring base reds v8; - probing a cap-cut level instead of refusing reds v10w. - Green here. v11 is census determinism. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…e of its parameters fnDefParameterList walks a definition's declarator chain to the function declarator through the `declarator` field alone. A definition returning `T&` or `T&&` reaches it through reference_declarator, which holds its inner declarator as an unnamed child, so the walk stopped and the definition's parameters emitted neither the VarDecl shadow record nor the ParamType record: shadow suppression, Rule 2's lexical parameter receivers and the field use-site index never saw them. innerDeclaratorOf now unwraps reference, parenthesized and attributed declarators for both fnDefParameterList and emitShadowVarDecls, which also gives `int run [[maybe_unused]] = 0;` its VarDecl. Found while checking, for the Rule 2b assignment-veto lane, that every C++ declaration shape emits a declaration record: `--match` counted 658 such definitions on rocksdb and 5,000+ (capped) on llvm-project, and 2 attributed declarators on llvm-project. Measured, --pin-census --no-cache, C rows joined on (caller id, callee, line) against ad7a9d5: rocksdb @ 0e2801ac3 28 retargeted (1 gained / 27 changed / 0 lost); llvm-project @ 4d5358b1d 1,318 (977 / 331 / 10 lost, calls= -11 from suppression). Seeded blinded sample of 26 graded against source: 24 better, 1 same, 1 worse (a `QualType Type` parameter whose Rule 2c class-name read was right by coincidence). Gates: test/narrowcheck.sh arms 61-63, test/shadowcheck.sh arm am and arm q8's new body write, test/fieldnarrowcheck.sh arm s3 — all red on ad7a9d5, green here. kParserVer 104 -> 112 with the quality.h mirror; qschemetrip re-pinned. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…a local, so Rule 2b refused its declared type Rule 2b's local-shadow veto refused the member whenever buildFieldNarrowTables' localNameSet held (method, name), and that set is built from every binding record. C++ assignments mint records: the assignment arm of bindsVisitNode records the callee's name as a Type binding for `x = Foo()` and `x = std::make_unique<T>( … )`, and the L3 capture records FnAssign for `x = other` and a clobber tombstone for `x = nullptr`. An assignment declares nothing, so a member assigned in a method and then called lost its narrow (llvm-project LVReader.cpp:175, `OutputFile->keep()` in LVSplitContext::open, no edge; now ToolOutputFile::keep). The set's value is now the evidence it holds (resolve.h localNameEvidence): any record sets kLocalNameBound, a VarDecl, ParamType or FnDecl record also sets kLocalNameDeclared, and Rule 2b vetoes on the second bit alone. Rule 2c and the Phase 5 external veto keep reading presence: they ask whether the name is a variable, which an assignment proves. The previous commit made every local-declaring shape emit a declaration record except the vexing-parse local, pinned as a floor. Measured, --pin-census --no-cache, joined on (caller id, callee, line) against the previous commit: rocksdb @ 0e2801ac3 118 retargeted (67 gained / 51 changed / 0 lost), llvm-project @ 4d5358b1d 683 (521 / 162 / 0), all decided by Rule 2b (instrumented scratch build). Vetoing evidence before: FnAssign or clobber 88 / 479, a Type naming a class 0 / 13, only Type records naming no class 30 / 191 (the population #278's guard also releases). Seeded blinded sample of 40 graded against source: 35 better, 4 same, 1 worse (a namesake base class across namespaces in the base walk). Rejected variant, measured: Rule 2c reading declarations only moves 0 rocksdb and 7 llvm-project sites, graded in full: 6 worse, 1 same. Composition checked with lane/rule2-irbuilder-local (scratch merge, rerere off): 24 more llvm-project sites retarget, all better — members the old per-method veto refused because a vexing-parse local of the name lives in one nested block; no retargeted site on either corpus sits inside such a block. Gate: test/fieldnarrowcheck.sh arm v. v1 x5 and v3's Rule 2b pickup red on the previous commit; the 12 v2 controls red on a scratch build with the veto removed, 3 of them (reference-returning parameters, attributed declarator) red on this veto without the previous commit; the 3 v3 rows red on a scratch build whose Rule 2c ignores assignments. graph.h stays line-neutral above rankGraphTeleport. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…cheVersion 24 PR #282 ad7a9d5 (signed off) on main a6868f7. The PR declared kParserVer 103 -> 104 and kCacheVersion 22 -> 23 over its base a5ce95e; main had spent 112 and #278's 23, so integration/train-5 assigns 113 and 24 (the ref record grows viaArrow, kMinRefRecordBytes 39 -> 40), with both quality.h mirrors and a RE-PIN LOG entry. The qschemetrip hash is re-derived once on the final train tree. Resolutions (unions; nothing from either side dropped): - src/ingest_relations.h: main's type-alias capture (#280) and #282's stdSmartPointee sit side by side. - src/graph.h: the member-field loop skips an alias record (#280) and a smart pointer's viaArrow pointee (#282). - src/ingest_cache.h: #282's readRef (viaArrow) with main's writeBind/readBind (isFromAssignment). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…nto train 5 — kParserVer 114 lane/rule2b-assignment-veto 626810b (signed off; #282 + 8f16d3e + 626810b). The lane declared kParserVer 112 over #282's 104; main had spent 112 and #282 takes 113, so integration/train-5 assigns 114 (mirror moved; no record layout change, kCacheVersion stays 24). Resolutions: - src/resolve.h: main's type-alias bases, classNameSet and #278's assignmentNamesNoClass beside the lane's localNameEvidence; rule2cClassNameRecv keeps main's ClassNameRecvNames signature (#280's memberFields) with the lane's wording for condition (2). - src/graph.h: localNameSet takes the lane's evidence bits AND keeps main's VarDecl localShadowSpans (Java shadows). - A composition call, not a textual one: main's localNameSet loop skipped a record assignmentNamesNoClass drops (#278: a member assigned from a call read as a local, so Rule 2b refused its declared type). The lane solves that same refusal with the declared bit, and its arm v3 needs Rule 2c to keep the assignment as evidence the token is a variable (`Widget = makePane();`), which the skip would drop. The loop now reads every record; assignmentNamesNoClass still guards the varType and field use-site tables, and its comment says the local-name set joined the two. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…class declares onto train 5 lane/field-base-member at 6b8f539 ONLY (signed off). Its tip 1965da7 is left out: that recalleval arm 6b change is superseded by #268's arm 6b on main. No extraction change, so no parser or cache version moves. One copy of what #280 already put on main: Narrower::kFieldWalkCap and Narrower::memberFieldNames (byte-identical body) and graph.h's single memberFields line (its comment now names both readers, Rule 2c's member-field veto and Rule 2b's declared-member set). expandWalkLevel keeps the lane's bool form: it visits exactly the names main's void form did and also reports a walk the cap cut, which fieldEntryAt refuses on; methodOnTypeOrBases, inBaseClosure and memberFieldHides ignore the result as before. The final-segment question keeps main's identityClaim guard with the lane's FieldRecvTables argument. test/fieldnarrowcheck.sh: this lane and lane/rule2b-assignment-veto each added an arm (v). Both are kept; this lane's is renamed (w), with its own fixture variables (FIX8, wMissing, wPinned, $TMP/w7*), and resolve.h's and CHANGELOG's references follow. docs/LIMITS.md is regenerated (221 caps). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…he train assigned The three members each wrote their entry at the top of Unreleased over their own base. Moved to the end of Unreleased in merge order — #282, then the veto lane's two (its ingest fix first, which its own entry now points up to), then field-base-member — and the version sentences renumbered to the train's: kCacheVersion 23 -> 24 and kParserVer 112 -> 113 for #282, 113 -> 114 for the veto lane. field-base-member changes no extraction and names no version; its gate arm reads (w), the letter it took when both lanes had added an arm (v). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…ts RE-PIN LOG entries The pin is re-derived on the final merged tree and carried from no member: 96ffda46. TRAIN 5's entry records the numbers assigned in merge order (kParserVer 113 for #282, 114 for the veto lane's ingest fix; kCacheVersion 24), and the veto lane's own entry is added — it changed the manifest source without one. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…ch the two lanes made readable Found on the merged tree; no member's own CI could see it. #280's arms H and J assert that a member named like a class takes no receiver rule, because neither member had a type Rule 2b could read: H is `std::unique_ptr<Widget> Reader` and J is the base's `Widget* Inherited`. #282 records a smart pointer's pointee and lane/field-base-member walks the bases, so both now resolve to `Widget::read` — the member's own type, exactly what arm I already asserted for `Widget* Raw`. H and J move to memberTypePin, arm I's assertion: receiver-rule to Widget::read ALONE, never the class the token names. K (a class template's base) and L (past the 16-name walk cap) keep notClassPin — Rule 2b still types neither — and the M/N controls are untouched. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
📝 WalkthroughWalkthroughThe change updates C++ declarator extraction, smart-pointer receiver typing, Rule 2b and Rule 2c binding evidence, inherited-field resolution, cache versions, documentation, and regression tests. ChangesResolver and reference extraction
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Bug fix · Severity of issue fixed: Medium Suggested reviewers: Merge Risk: 🟡 Moderate · up to Some inherited-field calls can resolve to the wrong target in diamond hierarchies, and capped searches are not disclosed. Correct these cases before merging. 🚥 Pre-merge checks | ✅ 2 | ❌ 3❌ Failed checks (2 warnings, 1 inconclusive)
✅ Passed checks (2 passed)
Full details: Linked Issues checkExplanation For Full details: Out of Scope Changes checkExplanation The smart-pointer changes and their supporting tests are within Full details: Docstring CoverageExplanation Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 33 functions across 16 files. (2 skipped: 2 unsupported.)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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In `@src/resolve.h`:
- Around line 4192-4194: In fieldEntryAt, when expandWalkLevel returns false,
invoke DEGRADED_PATH_ALERT before returning nullptr, with a message stating that
inherited-field resolution was truncated. Preserve the existing nullptr return
and avoid changing other lookup behavior.
- Around line 4248-4250: Update expandWalkLevel and the field lookup flow around
fieldWalk, declaringBasesAt, and fieldEntryAt to track multiplicity of distinct
inheritance paths separately from cycle prevention. When indistinguishable
non-virtual paths reach the same ancestor, preserve the ambiguous result and
refuse narrowing rather than treating the ancestor as unique. Add a non-virtual
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CHANGELOG.mddocs/LIMITS.mdsrc/graph.hsrc/ingest_binds.hsrc/ingest_cache.hsrc/ingest_model.hsrc/ingest_relations.hsrc/ingest_sidecap.hsrc/model.hsrc/quality.hsrc/resolve.htest/cachefuzzcheck.shtest/clsrecvcheck.shtest/fieldnarrowcheck.shtest/localitycheck.shtest/narrowcheck.shtest/qschemetripcheck.shtest/shadowcheck.sh
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Integration train 5 lands three reviewed Rule 2b changes. Shared build products are resolved once and CI runs once. It's based on main a6868f7.
std::unique_ptr<T>/std::shared_ptr<T>recordsT, sop->m()narrows (p.m()does not)Each member was reviewed and signed off on its own.
Pins, re-derived once:
kParserVer113 (#282) then 114 (the ingest half of the veto lane), bothquality.hmirrors;kCacheVersion24, since the ref record gainsviaArrowandkMinRefRecordBytesgoes 39 → 40;test/qschemetrip.hash96ffda46 with the TRAIN 5 and lane RE-PIN entries; LIMITS 221 caps.Three composition calls:
graph.h's local-name loop: the lane's "assigned, not declared" bits are kept and main's skip is dropped from that loop only.assignmentNamesNoClassstill guards the varType and field use-site tables. The lane measured the alternative (Rule 2c ignoring assignments) as worse, 6 of 7 sites, and arm v3 pins that.kFieldWalkCap,memberFieldNames(diffed byte-identical) and the singlememberFieldsline.fieldnarrowcheckarm (v): both are kept, with the base-member one renamed (w) and given its own fixtures.Composition defect found and fixed on the merged tree: #280's
clsrecvcheckarms H and J asserted that a member named like a class takes no receiver rule, which only held because neither member had a readable type. #282 and the base walk now resolve both to the member's own type, so H and J move to the assertion arm I already used for a raw pointer. K (a template base) and L (past the cap) keep the old assertion, and the M/N controls are untouched.Verification: macOS and Linux (ubuntu 24.04, g++ 13.3) clean builds; 15 targeted gates pass on both; determinism and xmllint clean;
quality-deltagating 0 with no acks needed. A cache written by a main binary is refused and rebuilt, and the answer matches the cold and--no-cacheruns byte for byte.The full suite, ASan and Release are CI's job.
Each member PR shows as merged once this lands.
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Summary by CodeRabbit
Bug Fixes
std::unique_ptrandstd::shared_ptr, including inherited members.Documentation
Reliability